Edgar Filing: Eaton Vance Tax-Managed Buy-Write Opportunities Fund

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number			811-21735

Eaton Vance Tax-Managed Buy-Write Opportunities Fund
(Exact name of registrant as specified in charter)

The Eaton Vance Building, 255 State Street, Boston, Massachusetts					02109
(Address of principal executive offices)					(Zip code)

Maureen A. Gemma The Eaton Vance Building, 255 State Street, Boston, Massachusetts 02109
(Name and address of agent for service)

Registrant’s telephone number, including area code:				(617) 482-8260

Date of fiscal year end:	December 31

Date of reporting period:		June 30, 2008

Item 1. Reports to Stockholders

Semiannual Report June 30, 2008

EATON VANCE
TAX-MANAGED
BUY-WRITE
OPPORTUNITIES
FUND

IMPORTANT NOTICES REGARDING PRIVACY,
DELIVERY OF SHAREHOLDER DOCUMENTS,
PORTFOLIO HOLDINGS, AND PROXY VOTING

Privacy. The Eaton Vance organization is committed to ensuring your financial privacy. Each of the financial institutions identified below has in effect the following policy ("Privacy Policy") with respect to nonpublic personal information about its customers:

• Only such information received from you, through application forms or otherwise, and information about your Eaton Vance fund transactions will be collected. This may include information such as name, address, social security number, tax status, account balances and transactions.

• None of such information about you (or former customers) will be disclosed to anyone, except as permitted by law (which includes disclosure to employees necessary to service your account). In the normal course of servicing a customer's account, Eaton Vance may share information with unaffiliated third parties that perform various required services such as transfer agents, custodians and broker/dealers.

• Policies and procedures (including physical, electronic and procedural safeguards) are in place that are designed to protect the confidentiality of such information.

• We reserve the right to change our Privacy Policy at any time upon proper notification to you. Customers may want to review our Policy periodically for changes by accessing the link on our homepage: www.eatonvance.com.

Our pledge of privacy applies to the following entities within the Eaton Vance organization: the Eaton Vance Family of Funds, Eaton Vance Management, Eaton Vance Investment Counsel, Boston Management and Research, and Eaton Vance Distributors, Inc.

In addition, our Privacy Policy only applies to those Eaton Vance customers who are individuals and who have a direct relationship with us. If a customer's account (i.e., fund shares) is held in the name of a third-party financial adviser/broker-dealer, it is likely that only such adviser's privacy policies apply to the customer. This notice supersedes all previously issued privacy disclosures.

For more information about Eaton Vance's Privacy Policy, please call 1-800-262-1122.

Delivery of Shareholder Documents. The Securities and Exchange Commission (the "SEC") permits funds to deliver only one copy of shareholder documents, including prospectuses, proxy statements and shareholder reports, to fund investors with multiple accounts at the same residential or post office box address. This practice is often called "householding" and it helps eliminate duplicate mailings to shareholders.

Eaton Vance, or your financial adviser, may household the mailing of your documents indefinitely unless you instruct Eaton Vance, or your financial adviser, otherwise.

If you would prefer that your Eaton Vance documents not be householded, please contact Eaton Vance at
1-800-262-1122, or contact your financial adviser.

Your instructions that householding not apply to delivery of your Eaton Vance documents will be effective within 30 days of receipt by Eaton Vance or your financial adviser.

Portfolio Holdings. Each Eaton Vance Fund and its underlying Portfolio (if applicable) will file a schedule of its portfolio holdings on Form N-Q with the SEC for the first and third quarters of each fiscal year. The Form N-Q will be available on the Eaton Vance website www.eatonvance.com, by calling Eaton Vance at 1-800-262-1122 or in the EDGAR database on the SEC's website at www.sec.gov. Form N-Q may also be reviewed and copied at the SEC's public reference room in Washington, D.C. (call 1-800-732-0330 for information on the operation of the public reference room).

Proxy Voting. From time to time, funds are required to vote proxies related to the securities held by the funds. The Eaton Vance Funds or their underlying Portfolios (if applicable) vote proxies according to a set of policies and procedures approved by the Funds' and Portfolios' Boards. You may obtain a description of these policies and procedures and information on how the Funds or Portfolios voted proxies relating to portfolio securities during the most recent 12 month period ended June 30, without charge, upon request, by calling 1-800-262-1122. This description is also available on the SEC's website at www.sec.gov.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

INVESTMENT UPDATE

Walter A. Row, CFA

Eaton Vance

Management

Co-Portfolio Manager

Ronald M. Egalka

Rampart Investment

Management

Co-Portfolio Manager

Thomas Seto

Parametric Portfolio

Associates LLC

Co-Portfolio Manager

David Stein, Ph.D.

Parametric Portfolio

Associates LLC

Co-Portfolio Manager

Economic and Market Conditions

·	Equity markets remained challenging during the first half of the year, as concerns surrounding ailing credit markets, elevated commodity prices and a slowing global economy failed to abate. The equity markets suffered their worst quarterly loss in more than five years in the first quarter of 2008. The second quarter remained difficult, as investors dealt with ongoing turmoil in the financial and housing markets, creeping inflation and a continuing global economic slowdown. Major indices registered declines in the first half of the year, and the S&P 500 Index – a common gauge of U.S. domestic markets – lost 11.9% during the period. In this environment, small-cap stocks continued to lead large-cap stocks, and growth stocks outpaced their value counterparts.

·	The S&P 500 Index’s sector performance varied widely during the period, with commodity-linked energy and materials sectors faring the best and registering the Index’s only positive sector returns. The weakest-performing sectors were financials, telecommunication services and industrials. Index-leading industries during the period included energy equipment and services, gas utilities, road and rail, and metals and mining. In contrast, industries such as thrift and mortgage finance, automobiles, health care providers, and diversified financials were among the period’s worst performers. The leading performers in the NASDAQ 100 Index were biotechnology, telecommunications equipment and mining and metals stocks. Selected software and semiconductor stocks in growing niche markets also posted positive returns. The Index’s weakest performers included airlines, retailers, media and technology stocks with ties to consumer electronics.

Management Discussion

The Fund’s primary objective is to provide current income and gains, with a secondary objective of capital appreciation. The Fund pursues its investment objectives by investing in a diversified portfolio of common stocks, a segment of which seeks to exceed the performance of the S&P 500 Stock Index(1) and a segment of which seeks to exceed the performance of the NASDAQ 100 Index.(1) Under normal market conditions, the Fund seeks to generate current earnings from option premiums by selling index call options with respect to a substantial portion of the total value of the Fund’s total assets. During the six months ended June 30, 2008, the Fund continued to provide shareholders with attractive quarterly distributions.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

Total Return Performance 12/31/07 – 6/30/08

NYSE Symbol		ETV

At Net Asset Value (NAV)		-6.75		%
At Market		2.38		%
S&P 500 Index(1)		-11.90		%
CBOE S&P 500 Buy-Write Index(1)		-5.89		%
NASDAQ 100 Index(1)		-11.68		%
CBOE NASDAQ 100 Buy-Write Index(1)		-10.00		%
Lipper Options Arbitrage/Options Strategies Average (1)		-7.90		%
Total Distributions per share		$	0.950
Distribution Rate(2)	On NAV	11.31		%
	On Market	11.61		%

See page 3 for more performance information.

(1)	It is not possible to invest directly in an Index or a Lipper Classification. The Indices’ total returns do not reflect commissions or expenses that would have been incurred if an investor individually purchased or sold the securities represented in the Indices. The Lipper total return is the average total return, at net asset value, of the funds that are in the same Lipper Classification as the Fund.

(2)	The Distribution Rate is based on the Fund’s most recent quarterly distribution per share (annualized) divided by the Fund’s NAV or market price at the end of the period. The Fund’s quarterly distributions may be comprised of ordinary income, net realized capital gains and return of capital.

Past performance is no guarantee of future results. Returns are historical and are calculated by determining the percentage change in net asset value or share price (as applicable) with all distributions reinvested. The Fund’s performance at market share price will differ from its results at NAV. Although share price performance generally reflects investment results over time, during shorter periods, returns at share price can also be affected by factors such as changing perceptions about the Fund, market conditions, fluctuations in supply and demand for the Fund’s shares, or changes in Fund distributions. The Fund has no current intention to utilize leverage, but may do so in the future through borrowings and/or other permitted methods. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance is for the stated time period only; due to market volatility, the Fund’s current performance may be lower or higher than the quoted return. For performance as of the most recent month end, please refer to www.eatonvance.com.

Fund shares are not insured by the FDIC and are not deposits or other obligations of, or guaranteed by, any depository institution. Shares are subject to investment risks, including possible loss of principal invested.

· At net asset value (NAV), the Fund outperformed comparative indices, the S&P 500 Index, the NASDAQ 100 Index and the CBOE NASDAQ 100 Buy-Write Index, while underperforming the CBOE S&P 500 Buy-Write Index for the six months ended June 30, 2008. In a continued volatile market environment, the Fund’s market share price – like some other closed-end funds – traded at a discount to NAV, as investors responded with caution to increasing market volatility. At June 30, 2008, the discount was 2.6%. At June 30, 2008, the Fund maintained a diversified portfolio, with investments in industries throughout the U.S. economy. Roughly 60% of the Fund’s investments tracked the S&P 500 Stock Index, with the remaining 40% tracking the NASDAQ 100 Index. Among the Fund’s common stock holdings, its largest sector weightings at June 30, 2008 were information technology, health care, energy, consumer discretionary and industrials.

· At June 30, 2008, the Fund had written call options on 99.7% of its equity holdings. The Fund seeks current earnings from option premiums, which may vary with investors’ expectation of the future volatility of the underlying asset. The first six months of 2008 witnessed continued higher levels of volatility in the equity markets. Surging oil prices and continued softness in the housing sector coupled with concerns about regional banks and an increasing anxiety about a possible recession led to dismal equity performance in the first half of the year. While there were fits and starts in the first four months of the year, “implied volatility”, or the expectation of future volatility, spiked almost 50% in the last six weeks of the second quarter as the broad market averages, measured by the S&P 500 Index, declined 10%. This resulted in a significant boost to option premiums, which provided a positive benefit to the Fund. Of course, in future periods of strong market growth, this strategy may lessen returns relative to the market.

The views expressed throughout this report are those of the portfolio managers and are current only through the end of the period of the report as stated on the cover. These views are subject to change at any time based upon market or other conditions, and the investment adviser disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a fund are based on many factors, may not be relied on as an indication of trading intent on behalf of any Eaton Vance fund. Portfolio information provided in the report may not be representative of the Fund’s current or future investments and may change due to active management.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

FUND PERFORMANCE

Fund Performance

NYSE Symbol	ETV
Average Annual Total Returns (by share price, New York Stock Exchange)
Six Months	2.38	%
One Year	-6.41
Life of Fund (6/30/05)	5.28

Average Annual Total Returns (at net asset value)
Six Months	-6.75	%
One Year	-3.65
Life of Fund (6/30/05)	6.19

Fund Composition

Top Ten Holdings(1)

By total investments

Apple, Inc.	6.8	%
Microsoft Corp.	3.8
Google, Inc., Class A	3.3
QUALCOMM, Inc.	3.1
Cisco Systems, Inc.	2.4
Oracle Corp.	2.4
Gilead Sciences, Inc.	2.3
Research In Motion, Ltd.	2.2
Exxon Mobil Corp.	2.1
General Electric Co.	1.9

(1)	Top Ten Holdings represented 30.3% of the Fund’s total investments as of 6/30/08. The Top Ten Holdings are presented without the offsetting effect of the Fund’s written option positions at 6/30/08. Excludes cash equivalents.

Sector Weightings(2)

By total investments

(2)	Reflects the Fund’s total investments as of 6/30/08. Sector Weightings are presented without the offsetting effect of the Fund’s written option positions at 6/30/08. Excludes cash equivalents.

Past performance is no guarantee of future results. Returns are historical and are calculated by determining the percentage change in net asset value or share price (as applicable) with all distributions reinvested. The Fund’s performance at market share price will differ from its results at NAV. Although share price performance generally reflects investment results over time, during shorter periods, returns at share price can also be affected by factors such as changing perceptions about the Fund, market conditions, fluctuations in supply and demand for the Fund’s shares, or changes in Fund distributions. The Fund has no current intention to utilize leverage, but may do so in the future through borrowings and/or other permitted methods. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance is for the stated time period only; due to market volatility, the Fund’s current performance may be lower or higher than the quoted return. For performance as of the most recent month end, please refer to www.eatonvance.com.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited)

Common Stocks — 100.0%
Security	Shares		Value
Aerospace & Defense — 1.6%
General Dynamics Corp.		54,228	$	4,565,998
Honeywell International, Inc.		137,827		6,929,942
Northrop Grumman Corp.		80,479		5,384,045
			$	16,879,985
Air Freight & Logistics — 0.8%
CH Robinson Worldwide, Inc.		60,653	$	3,326,211
FedEx Corp.		66,217		5,217,237
			$	8,543,448
Auto Components — 0.4%
Johnson Controls, Inc.		163,752	$	4,696,407
			$	4,696,407
Automobiles — 0.1%
Harley-Davidson, Inc.		32,153	$	1,165,868
			$	1,165,868
Beverages — 1.3%
Coca-Cola Co. (The)		117,208	$	6,092,472
PepsiCo, Inc.		119,822		7,619,481
			$	13,711,953
Biotechnology — 4.8%
Amgen, Inc.⁽¹⁾		194,330	$	9,164,603
Biogen Idec, Inc.⁽¹⁾		87,564		4,893,952
Celgene Corp.⁽¹⁾		123,649		7,897,462
Enzon Pharmaceuticals, Inc.⁽¹⁾		85,000		605,200
Genzyme Corp.⁽¹⁾		28,034		2,019,009
Gilead Sciences, Inc.⁽¹⁾		460,830		24,400,948
Martek Biosciences Corp.⁽¹⁾		20,000		674,200
Regeneron Pharmaceuticals, Inc.⁽¹⁾		50,714		732,310
			$	50,387,684
Capital Markets — 2.6%
Ameriprise Financial, Inc.		12,435	$	505,731
Bank of New York Mellon Corp. (The)		208,078		7,871,591
Charles Schwab Corp. (The)		46,117		947,243
E*Trade Financial Corp.⁽¹⁾		164,281		515,842
Federated Investors, Inc., Class B		17,577		605,000
Franklin Resources, Inc.		64,918		5,949,735

Security	Shares		Value
Capital Markets (continued)
Goldman Sachs Group, Inc.		35,062	$	6,132,344
Invesco, Ltd.		52,677		1,263,194
Merrill Lynch & Co., Inc.		94,749		3,004,491
T. Rowe Price Group, Inc.		21,876		1,235,338
			$	28,030,509
Chemicals — 1.3%
Dow Chemical Co. (The)		137,985	$	4,817,056
E.I. Du Pont de Nemours & Co.		54,281		2,328,112
Monsanto Co.		24,614		3,112,194
Rohm and Haas Co.		68,445		3,178,586
			$	13,435,948
Commercial Banks — 1.0%
Banco Bilbao Vizcaya Argentaria SA ADR		13,246	$	251,277
Comerica, Inc.		9,100		233,233
Fifth Third Bancorp		60,398		614,852
KeyCorp		27,176		298,392
Marshall & Ilsley Corp.		42,370		649,532
Popular, Inc.		68,345		450,394
Synovus Financial Corp.		80,482		702,608
Wachovia Corp.		20,000		310,600
Wells Fargo & Co.		288,882		6,860,947
Zions Bancorporation		12,002		377,943
			$	10,749,778
Commercial Services & Supplies — 1.0%
Avery Dennison Corp.		75,103	$	3,299,275
Equifax, Inc.		17,858		600,386
Half (Robert) International, Inc.		15,046		360,653
Manpower, Inc.		16,012		932,539
Pitney Bowes, Inc.		21,262		725,034
RR Donnelley & Sons Co.		85,009		2,523,917
Waste Management, Inc.		51,869		1,955,980
			$	10,397,784
Communications Equipment — 7.8%
Aruba Networks, Inc.⁽¹⁾		51,453	$	269,099
Cisco Systems, Inc.⁽¹⁾		1,102,836		25,651,965
QUALCOMM, Inc.		747,694		33,175,183
Research In Motion, Ltd.⁽¹⁾		199,458		23,316,640
			$	82,412,887

See notes to financial statements
4

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

Security	Shares		Value
Computer Peripherals — 8.9%
Apple, Inc.⁽¹⁾		429,908	$	71,983,796
Brocade Communications Systems, Inc.⁽¹⁾		98,179		808,995
Hewlett-Packard Co.		96,168		4,251,587
International Business Machines Corp.		84,281		9,989,827
NetApp, Inc.⁽¹⁾		151,711		3,286,060
Palm, Inc.		143,682		774,446
SanDisk Corp.⁽¹⁾		91,718		1,715,127
Seagate Technology		110,461		2,113,119
			$	94,922,957
Construction Materials — 0.3%
Cemex SAB de CV ADR⁽¹⁾		47,034	$	1,161,740
Vulcan Materials Co.		42,073		2,515,124
			$	3,676,864
Consumer Finance — 0.0%
Student Loan Corp.		4,670	$	458,034
			$	458,034
Containers & Packaging — 0.0%
Bemis Co., Inc.		19,722	$	442,167
			$	442,167
Distributors — 0.1%
Genuine Parts Co.		12,694	$	503,698
			$	503,698
Diversified Financial Services — 1.4%
Bank of America Corp.		303,078	$	7,234,472
ING Groep NV ADR		73,940		2,332,807
JPMorgan Chase & Co.		119,660		4,105,535
Moody's Corp.		31,486		1,084,378
			$	14,757,192
Diversified Telecommunication Services — 2.3%
AT&T, Inc.		312,381	$	10,524,116
Citizens Communications Co.		355,057		4,026,346
Fairpoint Communciations, Inc.		4,749		34,240
Verizon Communications, Inc.		251,832		8,914,853
Windstream Corp.		87,135		1,075,246
			$	24,574,801

Security	Shares		Value
Electric Utilities — 0.5%
Duke Energy Corp.		294,363	$	5,116,029
			$	5,116,029
Electrical Equipment — 0.7%
Cooper Industries, Ltd., Class A		30,288	$	1,196,376
Emerson Electric Co.		119,418		5,905,220
			$	7,101,596
Energy Equipment & Services — 2.3%
Diamond Offshore Drilling, Inc.		41,269	$	5,742,169
Halliburton Co.		223,928		11,883,859
Noble Corp.		18,939		1,230,277
Schlumberger, Ltd.		35,743		3,839,870
Transocean, Inc.⁽¹⁾		10,559		1,609,086
			$	24,305,261
Food & Staples Retailing — 3.1%
CVS Caremark Corp.		281,999	$	11,158,700
Kroger Co. (The)		42,808		1,235,867
Safeway, Inc.		182,171		5,200,982
SUPERVALU, Inc.		15,863		490,008
Wal-Mart Stores, Inc.		260,261		14,626,668
			$	32,712,225
Food Products — 0.8%
ConAgra Foods, Inc.		156,193	$	3,011,401
H.J. Heinz Co.		18,409		880,871
Hershey Co. (The)		42,578		1,395,707
Kraft Foods, Inc., Class A		48,129		1,369,270
McCormick & Co., Inc.		15,743		561,395
Sara Lee Corp.		140,854		1,725,461
			$	8,944,105
Gas Utilities — 0.0%
Nicor, Inc.		11,705	$	498,516
			$	498,516
Health Care Equipment & Supplies — 2.0%
Baxter International, Inc.		53,182	$	3,400,457
Cooper Cos., Inc. (The)		24,000		891,600
Covidien, Ltd.		32,091		1,536,838

See notes to financial statements
5

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

Security	Shares		Value
Health Care Equipment & Supplies (continued)
Gen-Probe, Inc.⁽¹⁾		20,000	$	949,600
Hospira, Inc.⁽¹⁾		13,496		541,325
Intuitive Surgical, Inc.⁽¹⁾		13,918		3,749,509
Medtronic, Inc.		115,235		5,963,411
Stryker Corp.		45,873		2,884,494
Zimmer Holdings, Inc.⁽¹⁾		11,520		783,936
			$	20,701,170
Health Care Providers & Services — 1.3%
DaVita, Inc.⁽¹⁾		20,004	$	1,062,813
Humana, Inc.⁽¹⁾		24,940		991,864
LifePoint Hospitals, Inc.⁽¹⁾		84,000		2,377,200
Lincare Holdings, Inc.⁽¹⁾		86,800		2,465,120
McKesson Corp.		88,022		4,921,310
Quest Diagnostics, Inc.		31,290		1,516,626
VCA Antech, Inc.⁽¹⁾		25,000		694,500
			$	14,029,433
Hotels, Restaurants & Leisure — 1.1%
Carnival Corp., Unit		19,600	$	646,016
Cheesecake Factory, Inc.⁽¹⁾		26,641		423,858
CKE Restaurants, Inc.		21,073		262,780
International Game Technology		18,708		467,326
Marriott International, Inc., Class A		55,557		1,457,816
McDonald's Corp.		33,849		1,902,991
Starbucks Corp.⁽¹⁾		280,063		4,408,192
Starwood Hotels & Resorts Worldwide, Inc.		32,575		1,305,280
Tim Hortons, Inc.		15,241		437,264
Wendy's International, Inc.		11,254		306,334
			$	11,617,857
Household Durables — 0.7%
D.R. Horton, Inc.		47,795	$	518,576
Fortune Brands, Inc.		40,476		2,526,107
Pulte Homes, Inc.		129,147		1,243,686
Ryland Group, Inc.		10,962		239,081
Stanley Works		56,752		2,544,192
			$	7,071,642
Household Products — 1.2%
Colgate-Palmolive Co.		7,774	$	537,183
Procter & Gamble Co.		200,625		12,200,006
			$	12,737,189

Security	Shares		Value
Independent Power Producers & Energy Traders — 0.4%
AES Corp. (The)⁽¹⁾		158,520	$	3,045,169
Mirant Corp.⁽¹⁾		32,088		1,256,245
			$	4,301,414
Industrial Conglomerates — 2.0%
General Electric Co.		761,087	$	20,313,412
Textron, Inc.		14,000		671,020
			$	20,984,432
Insurance — 2.6%
ACE, Ltd.		68,766	$	3,788,319
Aegon NV ADR		65,919		864,198
American International Group, Inc.		156,261		4,134,666
AON Corp.		21,504		987,894
Arthur J. Gallagher & Co.		108,901		2,624,514
Cincinnati Financial Corp.		13,382		339,903
Lincoln National Corp.		38,287		1,735,167
Marsh & McLennan Cos., Inc.		110,850		2,943,067
Prudential Financial, Inc.		44,972		2,686,627
RenaissanceRe Holdings, Ltd.		18,818		840,600
Travelers Companies, Inc. (The)		139,548		6,056,383
W. R. Berkley Corp.		19,029		459,741
			$	27,461,079
Internet Software & Services — 5.4%
Akamai Technologies, Inc.⁽¹⁾		99,453	$	3,459,970
Baidu.com, Inc. ADR⁽¹⁾		4,684		1,465,905
eBay, Inc.⁽¹⁾		492,306		13,454,723
Google, Inc., Class A⁽¹⁾		65,383		34,418,919
Yahoo!, Inc.⁽¹⁾		219,428		4,533,382
			$	57,332,899
IT Services — 1.9%
Cognizant Technology Solutions Corp.⁽¹⁾		93,068	$	3,025,641
Fidelity National Information Services, Inc.		100,619		3,713,847
MasterCard, Inc., Class A		9,897		2,627,851
Metavante Technologies, Inc.⁽¹⁾		14,123		319,462
Paychex, Inc.		218,890		6,846,879
Satyam Computer Services, Ltd. ADR		106,132		2,602,357
Total System Services, Inc.		38,946		865,380
			$	20,001,417

See notes to financial statements
6

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

Security	Shares		Value
Leisure Equipment & Products — 0.1%
Eastman Kodak Co.		19,707	$	284,372
Mattel, Inc.		64,723		1,108,058
			$	1,392,430
Life Sciences Tools & Services — 0.1%
PerkinElmer, Inc.		15,895	$	442,676
Waters Corp.⁽¹⁾		13,273		856,108
			$	1,298,784
Machinery — 1.6%
AGCO Corp.⁽¹⁾		37,966	$	1,989,798
Caterpillar, Inc.		110,370		8,147,513
Danaher Corp.		3,455		267,071
Eaton Corp.		58,699		4,987,654
Oshkosh Truck Corp.		24,922		515,636
Terex Corp.⁽¹⁾		29,582		1,519,627
			$	17,427,299
Media — 3.5%
CBS Corp., Class B		58,977	$	1,149,462
Central European Media Enterprises, Ltd., Class A⁽¹⁾		8,441		764,164
Comcast Corp., Class A		635,247		12,050,636
Idearc, Inc.		43		101
Meredith Corp.		10,785		305,108
Omnicom Group, Inc.		81,468		3,656,284
Sirius Satellite Radio, Inc.⁽¹⁾		728,642		1,398,993
Time Warner, Inc.		422,666		6,255,457
Viacom, Inc., Class B⁽¹⁾		30,748		939,044
Walt Disney Co.		326,386		10,183,243
			$	36,702,492
Metals & Mining — 1.3%
Alcoa, Inc.		25,000	$	890,500
Barrick Gold Corp.		37,627		1,712,028
Companhia Vale do Rio Doce ADR		52,576		1,883,272
Freeport-McMoRan Copper & Gold, Inc., Class B		15,988		1,873,634
Newmont Mining Corp.		25,000		1,304,000
Nucor Corp.		54,975		4,104,983
Teck Cominco, Ltd., Class B		34,000		1,630,300
			$	13,398,717

Security	Shares		Value
Multiline Retail — 0.4%
JC Penney Company, Inc.		30,850	$	1,119,546
Kohl's Corp.⁽¹⁾		13,030		521,721
Nordstrom, Inc.		57,531		1,743,189
Sears Holdings Corp.⁽¹⁾		5,730		422,072
			$	3,806,528
Multi-Utilities — 2.2%
Ameren Corp.		117,357	$	4,955,986
CMS Energy Corp.		26,762		398,754
Dominion Resources, Inc.		130,480		6,196,495
NiSource, Inc.		233,391		4,182,367
PG&E Corp.		6,785		269,297
Public Service Enterprise Group, Inc.		155,910		7,160,946
			$	23,163,845
Office Electronics — 0.1%
Xerox Corp.		98,889	$	1,340,935
			$	1,340,935
Oil, Gas & Consumable Fuels — 6.3%
Chevron Corp.		74,781	$	7,413,041
ConocoPhillips		180,588		17,045,701
Exxon Mobil Corp.		255,320		22,501,352
Holly Corp.		30,679		1,132,669
Marathon Oil Corp.		22,070		1,144,771
Parallel Petroleum Corp.⁽¹⁾		70,000		1,409,100
Range Resources Corp.		64,000		4,194,560
Suncor Energy, Inc.		56,982		3,311,794
Sunoco, Inc.		8,264		336,262
Valero Energy Corp.		20,153		829,901
Western Refining, Inc.		113,494		1,343,769
XTO Energy, Inc.		96,251		6,594,156
			$	67,257,076
Paper and Forest Products — 0.2%
Louisiana-Pacific Corp.		148,776	$	1,263,108
MeadWestvaco Corp.		45,728		1,090,156
			$	2,353,264

See notes to financial statements
7

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

Security	Shares		Value
Personal Products — 0.1%
Herbalife, Ltd.		28,374	$	1,099,492
			$	1,099,492
Pharmaceuticals — 3.8%
Abbott Laboratories		122,167	$	6,471,186
Allergan, Inc.		12,256		637,925
Bristol-Myers Squibb Co.		272,401		5,592,393
Cardiome Pharma Corp.⁽¹⁾		32,639		287,223
Eli Lilly & Co.		92,218		4,256,783
Endo Pharmaceuticals Holdings, Inc.⁽¹⁾		114,655		2,773,504
GlaxoSmithKline PLC ADR		66,510		2,941,072
Johnson & Johnson		65,017		4,183,194
Merck & Co., Inc.		78,798		2,969,897
Pfizer, Inc.		132,140		2,308,486
Schering-Plough Corp.		70,543		1,388,992
Sepracor, Inc.⁽¹⁾		12,997		258,900
Wyeth		135,856		6,515,654
			$	40,585,209
Real Estate Investment Trusts (REITs) — 0.3%
Host Hotels & Resorts, Inc.		19,942	$	272,208
Plum Creek Timber Co., Inc.		14,401		615,067
Simon Property Group, Inc.		19,298		1,734,697
			$	2,621,972
Real Estate Management & Development — 0.0%
Forestar Real Estate Group, Inc.⁽¹⁾		10,207	$	194,443
			$	194,443
Road & Rail — 0.8%
CSX Corp.		24,910	$	1,564,597
JB Hunt Transport Services, Inc.		99,371		3,307,067
Norfolk Southern Corp.		25,252		1,582,543
Ryder System, Inc.		10,708		737,567
Union Pacific Corp.		21,222		1,602,261
			$	8,794,035
Semiconductors & Semiconductor Equipment — 5.2%
Applied Materials, Inc.		669,505	$	12,780,850
Atheros Communications, Inc.⁽¹⁾		76,210		2,286,300
Intel Corp.		880,849		18,920,637

Security	Shares		Value
Semiconductors & Semiconductor Equipment (continued)
Intersil Corp., Class A		53,271	$	1,295,551
Marvell Technology Group, Ltd.⁽¹⁾		256,537		4,530,443
MEMC Electronic Materials, Inc.⁽¹⁾		79,127		4,869,476
Micron Technology, Inc.⁽¹⁾		278,047		1,668,282
National Semiconductor Corp.		25,302		519,703
NVIDIA Corp.⁽¹⁾		307,677		5,759,713
STMicroelectronics N.V. - NY Shares		85,975		888,122
Teradyne, Inc.⁽¹⁾		127,301		1,409,222
Tessera Technologies, Inc.⁽¹⁾		20,133		329,577
			$	55,257,876
Software — 8.4%
Adobe Systems, Inc.⁽¹⁾		215,023	$	8,469,756
Compuware Corp.⁽¹⁾		87,217		832,050
Electronic Arts, Inc.⁽¹⁾		125,357		5,569,612
i2 Technologies, Inc.⁽¹⁾		88,398		1,098,787
Microsoft Corp.		1,481,609		40,759,064
NAVTEQ Corp.⁽¹⁾		54,574		4,202,198
Oracle Corp.⁽¹⁾		1,192,845		25,049,745
TiVo, Inc.⁽¹⁾		326,806		2,016,393
Wind River Systems, Inc.⁽¹⁾		63,851		695,337
			$	88,692,942
Specialty Retail — 1.9%
Best Buy Co., Inc.		87,871	$	3,479,692
Gap, Inc. (The)		143,865		2,398,230
Home Depot, Inc.		77,807		1,822,240
Limited Brands, Inc.		26,688		449,693
Lowe's Companies, Inc.		136,794		2,838,475
Men's Wearhouse, Inc. (The)		19,320		314,723
Office Depot, Inc.⁽¹⁾		40,871		447,129
Staples, Inc.		229,575		5,452,406
Tiffany & Co.		12,130		494,297
TJX Companies, Inc. (The)		66,769		2,101,220
			$	19,798,105
Textiles, Apparel & Luxury Goods — 0.4%
Coach, Inc.⁽¹⁾		22,579	$	652,082
Nike, Inc., Class B		56,788		3,385,133
			$	4,037,215

See notes to financial statements
8

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

Security	Shares		Value
Thrifts & Mortgage Finance — 0.4%
Countrywide Financial Corp.		266,662	$	1,133,313
Federal National Mortgage Association		55,261		1,078,142
MGIC Investment Corp.		83,706		511,444
Sovereign Bancorp, Inc.		173,060		1,273,722
Washington Mutual, Inc.		56,997		280,995
			$	4,277,616
Tobacco — 0.7%
Altria Group, Inc.		102,975	$	2,117,166
Philip Morris International, Inc.		102,975		5,085,935
			$	7,203,101
Wireless Telecommunication Services — 0.5%
NII Holdings, Inc., Class B⁽¹⁾		50,629	$	2,404,371
Rogers Communications, Inc., Class B		33,000		1,275,780
Sprint Nextel Corp.		206,919		1,965,731
			$	5,645,882
Total Common Stocks (identified cost $933,895,420)			$	1,061,013,486
Total Investments — 100.0% (identified cost $933,895,420)			$	1,061,013,486

Covered Call Options Written — (0.2)%
Description	Number of Contracts		Strike Price		Expiration Date	Value
NASDAQ 100 Index		710	$	1,975	7/19/08	$	(340,800	)
NASDAQ 100 Index		1,071		1,985	7/19/08		(428,400	)
NASDAQ 100 Index		530		2,015	7/19/08		(100,700	)
S&P 500 Index		1,255		1,345	7/19/08		(426,700	)
S&P 500 Index		2,607		1,350	7/19/08		(729,960	)
S&P 500 Index		1,046		1,370	7/19/08		(120,290	)
S&P 500 Index		150		1,375	7/19/08		(12,750	)

Total Covered Call Options Written (premiums received $21,282,395)	$	(2,159,600	)
Other Assets, Less Liabilities — 0.2%	$	2,608,705
Net Assets — 100.0%	$	1,061,462,591

ADR - American Depository Receipt

⁽¹⁾Non-income producing security.

See notes to financial statements
9

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

FINANCIAL STATEMENTS (Unaudited)

Statement of Assets and Liabilities

As of June 30, 2008

Assets
Investments, at value (identified cost, $933,895,420)	$	1,061,013,486
Cash		2,476,028
Dividends and interest receivable		1,238,490
Tax reclaims receivable		1,205
Total assets	$	1,064,729,209
Liabilities
Written options outstanding, at value (premiums received, $21,282,395)	$	2,159,600
Payable to affiliate for investment adviser fee		918,166
Payable to affiliate for Trustees' fees		89
Accrued expenses		188,763
Total liabilities	$	3,266,618
Net Assets	$	1,061,462,591
Sources of Net Assets
Common shares, $0.01 par value, unlimited number of shares authorized, 63,173,419 shares issued and outstanding	$	631,734
Additional paid-in capital		952,191,414
Accumulated undistributed net realized gain (computed on the basis of identified cost)		19,149,921
Accumulated distributions in excess of net investment income		(56,751,408	)
Net unrealized appreciation (computed on the basis of identified cost)		146,240,930
Net Assets	$	1,061,462,591
Net Asset Value
($1,061,462,591 ÷ 63,173,419 common shares issued and outstanding)	$	16.80

Statement of Operations

For the Six Months Ended
June 30, 2008

Investment Income
Dividends (net of foreign taxes, $24,225)	$	9,079,384
Interest		49,255
Total investment income	$	9,128,639
Expenses
Investment adviser fee	$	5,582,055
Trustees' fees and expenses		5,924
Custodian fee		147,551
Printing and postage		73,552
Legal and accounting services		26,490
Transfer and dividend disbursing agent fees		14,533
Miscellaneous		16,602
Total expenses	$	5,866,707
Net investment income	$	3,261,932
Realized and Unrealized Gain (Loss)
Net realized gain (loss) — Investment transactions (identified cost basis)	$	(15,421,694	)
Written options		33,375,204
Foreign currency transactions		(161	)
Net realized gain	$	17,953,349
Change in unrealized appreciation (depreciation) — Investments (identified cost basis)	$	(126,270,732	)
Written options		20,325,316
Foreign currency		69
Net change in unrealized appreciation (depreciation)	$	(105,945,347	)
Net realized and unrealized loss	$	(87,991,998	)
Net decrease in net assets from operations	$	(84,730,066	)

See notes to financial statements
10

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

FINANCIAL STATEMENTS CONT'D

Statements of Changes in Net Assets

Increase (Decrease) in Net Assets	Six Months Ended June 30, 2008 (Unaudited)			Year Ended December 31, 2007
From operations — Net investment income	$	3,261,932		$	6,400,100
Net realized gain from investment transactions, written options and foreign currency transactions		17,953,349			16,416,566
Net change in unrealized appreciation (depreciation) of investments, written options and foreign currency		(105,945,347	)		88,369,687
Net increase (decrease) in net assets from operations	$	(84,730,066	)	$	111,186,353
Distributions — From net investment income	$	(60,014,748	)*	$	(6,366,122	)
From net realized gain		—			(7,775,471	)
Tax return of capital		—			(105,723,103	)
Total distributions	$	(60,014,748	)	$	(119,864,696	)
Capital share transactions — Reinvestment of distributions	$	—		$	4,508,271
Total increase in net assets from capital share transactions	$	—		$	4,508,271
Net decrease in net assets	$	(144,744,814	)	$	(4,170,072	)
Net Assets
At beginning of period	$	1,206,207,405		$	1,210,377,477
At end of period	$	1,061,462,591		$	1,206,207,405
Accumulated undistributed (distributions in excess of) net investment income included in net assets
At end of period	$	(56,751,408	)	$	1,408

* A portion of the distributions may be deemed a tax return of capital at year-end. See Note 2.

See notes to financial statements
11

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

FINANCIAL STATEMENTS CONT'D

Financial Highlights

	Six Months Ended June 30, 2008						Year Ended December 31,			Period Ended
	(Unaudited)			2007			2006			December 31, 2005⁽¹⁾
Net asset value — Beginning of period	$	19.090		$	19.230		$	19.010		$	19.1002
Income (loss) from operations
Net investment income⁽³⁾	$	0.052		$	0.101		$	0.101		$	0.049
Net realized and unrealized gain (loss)		(1.392	)		1.659			2.019			0.830
Total income (loss) from operations	$	(1.340	)	$	1.760		$	2.120		$	0.879
Less distributions
From net investment income	$	(0.950	)*	$	(0.101	)	$	(0.100	)	$	(0.049	)
From net realized gain		—			(0.123	)		(0.060	)		(0.297	)
Tax return of capital		—			(1.676	)		(1.740	)		(0.604	)
Total distributions	$	(0.950	)	$	(1.900	)	$	(1.900	)	$	(0.950	)
Offering costs charged to paid-in capital⁽³⁾	$	—		$	—		$	—		$	(0.019	)
Net asset value — End of period	$	16.800		$	19.090		$	19.230		$	19.010
Market value — End of period	$	16.370		$	16.940		$	20.370		$	17.750
Total Investment Return on Net Asset Value⁽⁴⁾		(6.75	)%⁽⁸⁾		9.83	%		11.69	%		4.72	%⁽⁵⁾⁽⁸⁾
Total Investment Return on Market Value⁽⁴⁾		2.38	%⁽⁸⁾		(7.98	)%		26.70	%		(2.23	)%⁽⁵⁾⁽⁸⁾
Ratios/Supplemental Data
Net assets, end of period (000's omitted)	$	1,061,463		$	1,206,207		$	1,210,377		$	1,192,517
Ratios (As a percentage of average daily net assets):
Expenses before custodian fee reduction⁽⁶⁾		1.05	%⁽⁷⁾		1.06	%		1.06	%		1.09	%⁽⁷⁾
Net investment income		0.58	%⁽⁷⁾		0.52	%		0.53	%		0.50	%⁽⁷⁾
Portfolio Turnover		10	%⁽⁸⁾		15	%		16	%		16	%⁽⁸⁾

⁽¹⁾ For the period from the start of business, June 30, 2005, to December 31, 2005.

⁽²⁾ Net asset value at beginning of period reflects the deduction of the sales load of $0.90 per share paid by the shareholder from the $20.00 offering price.

⁽³⁾ Computed using average shares outstanding.

⁽⁴⁾ Returns are historical and are calculated by determining the percentage change in net asset value or market value with all distributions reinvested.

⁽⁵⁾ Total investment return on net asset value is calculated assuming a purchase at the offering price of $20.00 less the sales load of $0.90 per share paid by the shareholder on the first day and a sale at the net asset value on the last day of the period reported with all distributions reinvested. Total investment return on market value is calculated assuming a purchase at the offering price of $20.00 less the sales load of $0.90 per share paid by the shareholder on the first day and a sale at the current market price on the last day of the period reported with all distributions reinvested.

⁽⁶⁾ Excludes the effect of custody fee credits, if any, of less than 0.005%.

⁽⁷⁾ Annualized.

⁽⁸⁾ Not annualized.

* A portion of the distributions may be deemed a tax return of capital at year-end. See Note 2.

See notes to financial statements
12

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

NOTES TO FINANCIAL STATEMENTS (Unaudited)

1 Significant Accounting Policies

Eaton Vance Tax-Managed Buy-Write Opportunities Fund (the Fund) is a Massachusetts business trust registered under the Investment Company Act of 1940, as amended (the 1940 Act), as a diversified, closed-end management investment company. The Fund's primary investment objective is to provide current income and gains, with a secondary objective of capital appreciation. The Fund pursues its investment objectives by investing primarily in a diversified portfolio of common stocks. Under normal market conditions, the Fund seeks to generate current earnings in part by employing an options strategy of writing index call options with respect to a substantial portion of its common stock portfolio.

The following is a summary of significant accounting policies of the Fund. The policies are in conformity with accounting principles generally accepted in the United States of America.

A Investment Valuation — Equity securities listed on a U.S. securities exchange generally are valued at the last sale price on the day of valuation or, if no sales took place on such date, at the mean between the closing bid and asked prices therefore on the exchange where such securities are principally traded. Equity securities listed on the NASDAQ Global or Global Select Market generally are valued at the NASDAQ official closing price. Unlisted or listed securities for which closing sales prices or closing quotations are not available are valued at the mean between the latest available bid and asked prices or, in the case of preferred equity securities that are not listed or traded in the over-the-counter market, by an independent pricing service. Exchange-traded options are valued at the last sale price for the day of valuation as quoted on any exchange on which the options are traded or, in the absence of sales on such date, at the mean between the closing bid and asked prices therefore. Over-the-counter options are valued based on broker quotations. Short-term debt securities with a remaining maturity of sixty days or less are valued at amortized cost, which approximates market value. If short-term debt securities are acquired with a remaining maturity of more than sixty days, they will be valued by a pricing service. Foreign securities and currencies are valued in U.S. dollars, based on foreign currency exchange rate quotations supplied by an independent quotation service. The independent service uses a proprietary model to determine the exchange rate. Inputs to the model include reported trades and implied bid/ask spreads. The daily valuation of exchange-traded foreign securities generally is determined as of the close of trading on the principal exchange on which such securities trade. Events occurring after the close of trading on foreign exchanges may result in adjustments to the valuation of foreign securities to more accurately reflect their fair value as of the close of regular trading on the New York Stock Exchange. When valuing foreign equity securities that meet certain criteria, the Trustees have approved the use of a fair value service that values such securities to reflect market trading that occurs after the close of the applicable foreign markets of comparable securities or other instruments that have a strong correlation to the fair-valued securities. Investments for which valuations or market quotations are not readily available are valued at fair value using methods determined in good faith by or at the direction of the Trustees of the Fund considering relevant factors, data and information including the market value of freely tradable securities of the same class in the principal market on which such securities are normally traded.

B Investment Transactions — Investment transactions for financial statement purposes are accounted for on a trade date basis. Realized gains and losses on investments sold are determined on the basis of identified cost.

C Income — Dividend income is recorded on the ex-dividend date for dividends received in cash and/or securities. However, if the ex-dividend date has passed, certain dividends from foreign securities are recorded as the Fund is informed of the ex-dividend date. Withholding taxes on foreign dividends and capital gains have been provided for in accordance with the Fund's understanding of the applicable countries' tax rules and rates. Interest income is recorded on the basis of interest accrued, adjusted for amortization of premium or accretion of discount.

D Federal Taxes — The Fund's policy is to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute to shareholders each year substantially all of its net investment income, and all or substantially all of its net realized capital gains. Accordingly, no provision for federal income or excise tax is necessary.

As of June 30, 2008, the Fund had no uncertain tax positions that would require financial statement recognition, de-recognition, or disclosure. Each of the Fund's federal tax returns filed in the 3-year period ended December 31, 2007 remains subject to examination by the Internal Revenue Service.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

NOTES TO FINANCIAL STATEMENTS (Unaudited) CONT'D

E Expense Reduction — State Street Bank and Trust Company (SSBT) serves as custodian of the Fund. Pursuant to the custodian agreement, SSBT receives a fee reduced by credits, which are determined based on the average daily cash balance the Fund maintains with SSBT. All credit balances, if any, used to reduce the Fund's custodian fees are reported as a reduction of expenses in the Statement of Operations.

F Foreign Currency Translation — Investment valuations, other assets, and liabilities initially expressed in foreign currencies are translated each business day into U.S. dollars based upon current exchange rates. Purchases and sales of foreign investment securities and income and expenses denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates in effect on the respective dates of such transactions. Recognized gains or losses on investment transactions attributable to changes in foreign currency exchange rates are recorded for financial statement purposes as net realized gains and losses on investments. That portion of unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed.

G Use of Estimates — The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates.

H Indemnifications — Under the Fund's organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the Fund, and shareholders are indemnified against personal liability for the obligations of the Fund. Additionally, in the normal course of business, the Fund enters into agreements with service providers that may contain indemnification clauses. The Fund's maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Fund that have not yet occurred.

I Written Options — Upon the writing of a call or a put option, the premium received by the Fund is included in the Statement of Assets and Liabilities as a liability. The amount of the liability is subsequently marked-to-market to reflect the current market value of the option written, in accordance with the Fund's policies on investment valuations discussed above. Premiums received from writing options which expire are treated as realized gains. Premiums received from writing options which are exercised or are closed are added to or offset against the proceeds or amount paid on the transaction to determine the realized gain or loss. If a put option on a security is exercised, the premium reduces the cost basis of the securities purchased by the Fund. The Fund, as a writer of an option, may have no control over whether the underlying securities or other assets may be sold (call) or purchased (put) and, as a result, bears the market risk of an unfavorable change in the price of the securities or other assets underlying the written option. The Fund may also bear the risk of not being able to enter into a closing transaction if a liquid secondary market does not exist.

J Interim Financial Statements — The interim financial statements relating to June 30, 2008 and for the six months then ended have not been audited by an independent registered public accounting firm, but in the opinion of the Fund's management, reflect all adjustments, consisting only of normal recurring adjustments, necessary for the fair presentation of the financial statements.

2 Distributions to Shareholders

The Fund intends to make quarterly distributions from its cash available for distribution, which consists of the Fund's dividends and interest income after payment of Fund expenses, net option premiums and net realized and unrealized gains on stock investments. At least annually, the Fund intends to distribute all or substantially all of its net realized capital gains, if any. Distributions are recorded on the ex-dividend date.

The Fund distinguishes between distributions on a tax basis and a financial reporting basis. Accounting principles generally accepted in the United States of America require that only distributions in excess of tax basis earnings and profits be reported in the financial statements as a return of capital. Permanent differences between book and tax accounting relating to distributions are reclassified to paid-in capital. For tax purposes, distributions from short-term capital gains are considered to be from ordinary income. Distributions in any year may include a substantial return of capital component. For the six months ended June 30, 2008, the amount of distributions estimated to be a tax return of capital was approximately $48,371,000. The final determination of tax characteristics of the Fund's distributions will occur at the end of the year, at which time it will be reported to the shareholders.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

NOTES TO FINANCIAL STATEMENTS (Unaudited) CONT'D

3 Investment Adviser Fee and Other Transactions with Affiliates

The investment adviser fee is earned by Eaton Vance Management (EVM) as compensation for management and investment advisory services rendered to the Fund. The fee is computed at an annual rate of 1.00% of the Fund's average daily gross assets and is payable monthly. Gross assets as referred to herein represent net assets plus obligations attributable to investment leverage, if any. For the six months ended June 30, 2008, the adviser fee amounted to $5,582,055. Pursuant to sub-advisory agreements, EVM has delegated a portion of the investment management to Parametric Portfolio Associates, LLC (Parametric), an affiliate of EVM, and delegated the investment management of the Fund's options strategy to Rampart Investment Management Company (Rampart). EVM pays Parametric and Rampart a portion of its advisory fee for sub-advisory services provided to the Fund. EVM also serves as administrator of the Fund, but receives no compensation.

Except for Trustees of the Fund who are not members of EVM's organization, officers and Trustees receive remuneration for their services to the Fund out of the investment adviser fee. Trustees of the Fund who are not affiliated with EVM may elect to defer receipt of all or a percentage of their annual fees in accordance with the terms of the Trustees Deferred Compensation Plan. For the six month ended June 30, 2008, no significant amounts have been deferred. Certain officers and Trustees of the Fund are officers of EVM.

4 Purchases and Sales of Investments

Purchases and sales of investments, other than short-term obligations, aggregated $117,099,340 and $138,698,091, respectively, for the six months ended June 30, 2008.

5 Common Shares of Beneficial Interest

The Fund may issue common shares pursuant to its dividend reinvestment plan. There were no transactions in common shares for the six months ended June 30, 2008. Common shares issued pursuant to the Fund's dividend reinvestment plan for the year ended December 31, 2007 were 231,401.

6 Federal Income Tax Basis of Investments

The cost and unrealized appreciation (depreciation) of investments of the Fund at June 30, 2008, as determined on a federal income tax basis, were as follows:

Aggregate cost	$	933,899,961
Gross unrealized appreciation	$	204,633,299
Gross unrealized depreciation		(77,519,774	)
Net unrealized appreciation	$	127,113,525

7 Financial Instruments

The Fund may trade in financial instruments with off-balance sheet risk in the normal course of its investing activities to assist in managing exposure to various market risks. These financial instruments may include written options and may involve, to a varying degree, elements of risk in excess of the amounts recognized for financial statement purposes. The notional or contractual amounts of these instruments represent the investment the Fund has in particular classes of financial instruments and does not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered. A summary of written call options at June 30, 2008 is included in the Portfolio of Investments.

Written call options activity for the six months ended June 30, 2008 was as follows:

	Number of Contracts			Premiums Received
Outstanding, beginning of period		7,159		$	19,687,944
Options written		44,379			122,982,750
Options terminated in closing purchase transactions		(44,169	)		(121,388,299	)
Outstanding, end of period		7,369		$	21,282,395

All of the assets of the Fund are subject to segregation to satisfy the requirements of the escrow agent. At June 30, 2008, the Fund had sufficient cash and/or securities to cover commitments under these contracts.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

NOTES TO FINANCIAL STATEMENTS (Unaudited) CONT'D

8 Fair Value Measurements

The Fund adopted Financial Accounting Standards Board (FASB) Statement of Financial Accounting Standards No. 157 (FAS 157), "Fair Value Measurements", effective January 1, 2008. FAS 157 established a three-tier hierarchy to prioritize the assumptions, referred to as inputs, used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.

• Level 1 — quoted prices in active markets for identical investments

• Level 2 — other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 — significant unobservable inputs (including a fund's own assumptions in determining the fair value of investments)

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

At June 30, 2008, the inputs used in valuing the Fund's investments, which are carried at value, were as follows:

	Valuation Inputs	Investments in Securities		Other Financial Instruments*
Level 1	Quoted Prices	$	1,061,013,486	$	(2,159,600	)
Level 2	Other Significant Observable Inputs		—		—
Level 3	Significant Unobservable Inputs		—		—
	Total	$	1,061,013,486	$	(2,159,600	)

* Other financial instruments include written call options, which are valued at the unrealized appreciation (depreciation) on the instrument.

The Fund held no investments or other financial instruments as of December 31, 2007 whose fair value was determined using Level 3 inputs.

9 Recently Issued Accounting Pronouncement

In March 2008, the FASB issued Statement of Financial Accounting Standards No. 161 (FAS 161), "Disclosures about Derivative Instruments and Hedging Activities". FAS 161 requires enhanced disclosures about an entity's derivative and hedging activities, including qualitative disclosures about the objectives and strategies for using derivatives, quantitative disclosures about fair value amounts of and gains and losses on derivative instruments, and disclosures about credit-risk related contingent features in derivative instruments. FAS 161 is effective for fiscal years and interim periods beginning after November 15, 2008. Management is currently evaluating the impact the adoption of FAS 161 will have on the Fund's financial statement disclosures.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund as of June 30, 2008

ANNUAL MEETING OF SHAREHOLDERS (Unaudited)

The Fund held its Annual Meeting of Shareholders on April 25, 2008. The following action was taken by the shareholders of the Fund:

Item 1: The election of Thomas E. Faust Jr. and Allen R. Freedman as Class I Trustees of the Fund for a one-year term expiring in 2009, the election of Heidi L. Steiger as a Class II Trustee of the Fund for a two-year term expiring in 2010 and the election of Norton H. Reamer, Lynn A. Stout and Ralph F. Verni as Class III Trustees of the Fund for a three-year term expiring in 2011:

Nominee for Trustee	Number of Shares
Elected by All Shareholders	For		Withheld
Thomas E. Faust Jr.		56,816,345		1,083,554
Allen R. Freedman		56,800,501		1,099,398
Norton H. Reamer		56,796,979		1,102,920
Heidi L. Steiger		56,805,608		1,094,291
Lynn A. Stout		56,824,054		1,075,845
Ralph F. Verni		56,819,987		1,079,912

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

DIVIDEND REINVESTMENT PLAN

The Fund offers a dividend reinvestment plan (the Plan) pursuant to which shareholders may elect to have dividends and capital gains distributions automatically reinvested in common shares (the Shares) of the Fund. You may elect to participate in the Plan by completing the Dividend Reinvestment Plan Application Form. If you do not participate, you will receive all distributions in cash paid by check mailed directly to you by American Stock Transfer & Trust Company as dividend paying agent. On the distribution payment date, if the net asset value per Share is equal to or less than the market price per Share plus estimated brokerage commissions then new Shares will be issued. The number of Shares shall be determined by the greater of the net asset value per Share or 95% of the market price. Otherwise, Shares generally will be purchased on the open market by the Plan Agent. Distributions subject to income tax (if any) are taxable whether or not shares are reinvested.

If your shares are in the name of a brokerage firm, bank, or other nominee, you can ask the firm or nominee to participate in the Plan on your behalf. If the nominee does not offer the Plan, you will need to request that your shares be re-registered in your name with the Fund's transfer agent, American Stock Transfer & Trust Company, or you will not be able to participate.

The Plan Agent's service fee for handling distributions will be paid by the Fund. Each participant will be charged their pro rata share of brokerage commissions on all open-market purchases.

Plan participants may withdraw from the Plan at any time by writing to the Plan Agent at the address noted on the following page. If you withdraw, you will receive shares in your name for all Shares credited to your account under the Plan. If a participant elects by written notice to the Plan Agent to have the Plan Agent sell part or all of his or her Shares and remit the proceeds, the Plan Agent is authorized to deduct a $5.00 fee plus brokerage commissions from the proceeds.

If you wish to participate in the Plan and your shares are held in your own name, you may complete the form on the following page and deliver it to the Plan Agent.

Any inquiries regarding the Plan can be directed to the Plan Agent, American Stock Transfer & Trust Company, at 1-866-439-6787.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

APPLICATION FOR PARTICIPATION IN DIVIDEND REINVESTMENT PLAN

This form is for shareholders who hold their common shares in their own names. If your common shares are held in the name of a brokerage firm, bank, or other nominee, you should contact your nominee to see if it will participate in the Plan on your behalf. If you wish to participate in the Plan, but your brokerage firm, bank, or nominee is unable to participate on your behalf, you should request that your common shares be re-registered in your own name which will enable your participation in the Plan.

The following authorization and appointment is given with the understanding that I may terminate it at any time by terminating my participation in the Plan as provided in the terms and conditions of the Plan.

Please print exact name on account:

Shareholder signature Date

Please sign exactly as your common shares are registered. All persons whose names appear on the share certificate must sign.

YOU SHOULD NOT RETURN THIS FORM IF YOU WISH TO RECEIVE YOUR DISTRIBUTIONS IN CASH. THIS IS NOT A PROXY.

This authorization form, when signed, should be mailed to the following address:

Eaton Vance Tax-Managed Buy-Write Opportunities Fund
c/o American Stock Transfer & Trust Company
P.O. Box 922
Wall Street Station
New York, NY 10269-0560

Number of Employees

The Fund is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as a diversified, closed-end management investment company and has no employees.

Number of Shareholders

As of June 30, 2008, our records indicate that there are 46 registered shareholders and approximately 45,057 shareholders owning the Fund shares in street name, such as through brokers, banks, and financial intermediaries.

If you are a street name shareholder and wish to receive our reports directly, which contain important information about the Fund, please write or call:

Eaton Vance Distributors, Inc.
The Eaton Vance Building
255 State Street
Boston, MA 02109
1-800-225-6265

New York Stock Exchange symbol

The New York Stock Exchange symbol is ETV.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

BOARD OF TRUSTEES' ANNUAL APPROVAL OF THE INVESTMENT ADVISORY AGREEMENT

Overview of the Contract Review Process

The Investment Company Act of 1940, as amended (the "1940 Act"), provides, in substance, that each investment advisory agreement between a fund and its investment adviser will continue in effect from year to year only if its continuance is approved at least annually by the fund's board of trustees, including by a vote of a majority of the trustees who are not "interested persons" of the fund ("Independent Trustees"), cast in person at a meeting called for the purpose of considering such approval.

At a meeting of the Boards of Trustees (each a "Board") of the Eaton Vance group of mutual funds (the "Eaton Vance Funds") held on April 21, 2008, the Board, including a majority of the Independent Trustees, voted to approve continuation of existing advisory and sub-advisory agreements for the Eaton Vance Funds for an additional one-year period. In voting its approval, the Board relied upon the affirmative recommendation of the Contract Review Committee of the Board (formerly the Special Committee), which is a committee comprised exclusively of Independent Trustees. Prior to making its recommendation, the Contract Review Committee reviewed information furnished for a series of meetings of the Contract Review Committee held in February, March and April 2008. Such information included, among other things, the following:

Information about Fees, Performance and Expenses

• An independent report comparing the advisory and related fees paid by each fund with fees paid by comparable funds;

• An independent report comparing each fund's total expense ratio and its components to comparable funds;

• An independent report comparing the investment performance of each fund to the investment performance of comparable funds over various time periods;

• Data regarding investment performance in comparison to relevant peer groups of funds and appropriate indices;

• Comparative information concerning fees charged by each adviser for managing other mutual funds and institutional accounts using investment strategies and techniques similar to those used in managing the fund;

• Profitability analyses for each adviser with respect to each fund;

Information about Portfolio Management

• Descriptions of the investment management services provided to each fund, including the investment strategies and processes employed, and any changes in portfolio management processes and personnel;

• Information concerning the allocation of brokerage and the benefits received by each adviser as a result of brokerage allocation, including information concerning the acquisition of research through "soft dollar" benefits received in connection with the funds' brokerage, and the implementation of a soft dollar reimbursement program established with respect to the funds;

• Data relating to portfolio turnover rates of each fund;

• The procedures and processes used to determine the fair value of fund assets and actions taken to monitor and test the effectiveness of such procedures and processes;

Information about each Adviser

• Reports detailing the financial results and condition of each adviser;

• Descriptions of the qualifications, education and experience of the individual investment professionals whose responsibilities include portfolio management and investment research for the funds, and information relating to their compensation and responsibilities with respect to managing other mutual funds and investment accounts;

• Copies of the Codes of Ethics of each adviser and its affiliates, together with information relating to compliance with and the administration of such codes;

• Copies of or descriptions of each adviser's proxy voting policies and procedures;

• Information concerning the resources devoted to compliance efforts undertaken by each adviser and its affiliates on behalf of the funds (including descriptions of various compliance programs) and their record of compliance with investment policies and restrictions, including policies with respect to market-timing, late trading and selective portfolio disclosure, and with policies on personal securities transactions;

• Descriptions of the business continuity and disaster recovery plans of each adviser and its affiliates;

Other Relevant Information

• Information concerning the nature, cost and character of the administrative and other non-investment management services provided by Eaton Vance Management and its affiliates;

• Information concerning management of the relationship with the custodian, subcustodians and fund accountants by each adviser or the funds' administrator; and

• The terms of each advisory agreement.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

BOARD OF TRUSTEES' ANNUAL APPROVAL OF THE INVESTMENT ADVISORY AGREEMENT CONT'D

In addition to the information identified above, the Contract Review Committee considered information provided from time to time by each adviser throughout the year at meetings of the Board and its committees. Over the course of the twelve-month period ended April 30, 2008, the Board met eleven times and the Contract Review Committee, the Audit Committee and the Governance Committee, each of which is a Committee comprised solely of Independent Trustees, met twelve, seven and five times, respectively. At such meetings, the Trustees received, among other things, presentations by the portfolio managers and other investment professionals of each adviser relating to the investment performance of each fund and the investment strategies used in pursuing the fund's investment objective. The Portfolio Management Committee and the Compliance Reports and Regulatory Matters Committee are newly established and did not meet during the twelve-month period ended April 30, 2008.

For funds that invest through one or more underlying portfolios, the Board considered similar information about the portfolio(s) when considering the approval of advisory agreements. In addition, in cases where the fund's investment adviser has engaged a sub-adviser, the Board considered similar information about the sub-adviser when considering the approval of any sub-advisory agreement.

The Contract Review Committee was assisted throughout the contract review process by Goodwin Procter LLP, legal counsel for the Independent Trustees. The members of the Contract Review Committee relied upon the advice of such counsel and their own business judgment in determining the material factors to be considered in evaluating each advisory and sub-advisory agreement and the weight to be given to each such factor. The conclusions reached with respect to each advisory and sub-advisory agreement were based on a comprehensive evaluation of all the information provided and not any single factor. Moreover, each member of the Contract Review Committee may have placed varying emphasis on particular factors in reaching conclusions with respect to each advisory and sub-advisory agreement.

Results of the Process

Based on its consideration of the foregoing, and such other information as it deemed relevant, including the factors and conclusions described below, the Contract Review Committee concluded that the continuance of the investment advisory agreement of the Eaton Vance Tax-Managed Buy-Write Opportunities Fund (the "Fund") with Eaton Vance Management (the "Adviser"), and the sub-advisory agreements with Parametric Portfolio Associates, LLC ("PPA") and Rampart Investment Management Company, Inc. ("Rampart," and with PPA, the "Sub-advisers") including their fee structures, is in the interests of shareholders and, therefore, the Contract Review Committee recommended to the Board approval of the respective agreements. The Board accepted the recommendation of the Contract Review Committee as well as the factors considered and conclusions reached by the Contract Review Committee with respect to the agreements. Accordingly, the Board, including a majority of the Independent Trustees, voted to approve continuation of the investment advisory agreement and the sub-advisory agreements for the Fund.

Nature, Extent and Quality of Services

In considering whether to approve the investment advisory and sub-advisory agreements of the Fund, the Board evaluated the nature, extent and quality of services provided to the Fund by the Adviser and the Sub-advisers.

The Board considered the Adviser's and the Sub-advisers' management capabilities and investment process with respect to the types of investments held by the Fund, including the education, experience and number of its investment professionals and other personnel who provide portfolio management, investment research, and similar services to the Fund and whose responsibilities include supervising each Sub-adviser and coordinating their activities in implementing the Fund's investment strategy. In particular, the Board evaluated, where relevant, the abilities and experience of such investment personnel in analyzing factors such as tax efficiency and special considerations relevant to investing in stocks and selling call options on the S&P 500 Index and the NASDAQ 100. With respect to PPA, the Board noted PPA's experience in deploying quantitative-based investment strategies. With respect to Rampart, the Board considered Rampart's business reputation and its options strategy and its past experience in implementing this strategy. The Board also took into consideration the resources dedicated to portfolio management and other services, including the compensation paid to recruit and retain investment personnel, and the time and attention devoted to the Fund by senior management.

The Board also reviewed the compliance programs of the Adviser and Sub-advisers and relevant affiliates thereof. Among other matters, the Board considered compliance and reporting matters relating to personal trading by investment personnel, selective disclosure of portfolio holdings, late trading, frequent trading, portfolio valuation, business continuity and the allocation of investment opportunities. The Board also evaluated the responses of the Adviser and its affiliates to requests from regulatory authorities such as the Securities and Exchange Commission.

The Board considered shareholder and other administrative services provided or managed by Eaton Vance Management and its affiliates, including transfer agency and accounting services. The Board evaluated the benefits to shareholders of investing in a fund that is a part of a large family of funds.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

BOARD OF TRUSTEES' ANNUAL APPROVAL OF THE INVESTMENT ADVISORY AGREEMENT CONT'D

After consideration of the foregoing factors, among others, the Board concluded that the nature, extent and quality of services provided by the Adviser and Sub-advisers, taken as a whole, are appropriate and consistent with the terms of the respective investment advisory and sub-advisory agreements.

Fund Performance

The Board compared the Fund's investment performance to a relevant universe of similarly managed funds identified by an independent data provider and appropriate benchmark indices. The Board reviewed comparative performance data for the one-year period ended September 30, 2007 for the Fund. The Board concluded that the Fund's performance was satisfactory.

Management Fees and Expenses

The Board reviewed contractual investment advisory fee rates, including any administrative fee rates, payable by the Fund (referred to collectively as "management fees"). As part of its review, the Board considered the Fund's management fees and total expense ratio for the year ended September 30, 2007, as compared to a group of similarly managed funds selected by an independent data provider.

After reviewing the foregoing information, and in light of the nature, extent and quality of the services provided by the Adviser, the Board concluded that the management fees charged for advisory and related services and the Fund's total expense ratio are reasonable.

Profitability

The Board reviewed the level of profits realized by the Adviser and relevant affiliates thereof, including PPA, in providing investment advisory and administrative services to the Fund and to all Eaton Vance Funds as a group. The Board considered the level of profits realized with and without regard to revenue sharing or other payments by the Adviser and its affiliates to third parties in respect of distribution services. The Board also considered other direct or indirect benefits received by the Adviser and its affiliates, including PPA, in connection with its relationship with the Fund, including the benefits of research services that may be available to the Adviser as a result of securities transactions effected for the Fund and other investment advisory clients. The Board also concluded that, in light of its role as a sub-adviser not affiliated with the Adviser, Rampart's profitability in managing the Fund was not a material factor.

The Board concluded that, in light of the foregoing factors and the nature, extent and quality of the services rendered, the profits realized by the Adviser and its affiliates, including PPA, are reasonable.

Economies of Scale

In reviewing management fees and profitability, the Board also considered the extent to which the Adviser and its affiliates, on the one hand, and the Fund, on the other hand, can expect to realize benefits from economies of scale as the assets of the Fund increase. The Board acknowledged the difficulty in accurately measuring the benefits resulting from the economies of scale with respect to the management of any specific fund or group of funds. The Board also considered the fact that the Fund is not continuously offered and concluded that, in light of the level of the Adviser's profits with respect to the Fund, the implementation of breakpoints in the advisory fee schedule is not appropriate at this time. Based upon the foregoing, the Board concluded that the benefits from economies of scale are currently being shared equitably by the Adviser and its affiliates and the Fund.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

OFFICERS AND TRUSTEES

Officers Duncan W. Richardson President Thomas E. Faust Jr. Vice President and Trustee Michael R. Mach Vice President Walter A. Row, III Vice President Judith A. Saryan Vice President Barbara E. Campbell Treasurer Maureen A. Gemma Chief Legal Officer and Secretary Paul M. O'Neil Chief Compliance Officer				Trustees Ralph F. Verni Chairman Benjamin C. Esty Allen R. Freedman William H. Park Ronald A. Pearlman Heidi L. Steiger Lynn A. Stout

This Page Intentionally Left Blank

Investment Adviser and Administrator of Eaton Vance Tax-Managed
Buy-Write Opportunities Fund
Eaton Vance Management

The Eaton Vance Building
255 State Street
Boston, MA 02109

Sub-Advisers of Eaton Vance Tax-Managed Buy-Write Opportunities Fund
Parametric Portfolio Associates, LLC

1151 Fairview Avenue N.
Seattle, WA 98109

Rampart Investment Management Company, Inc.

One International Place
Boston, MA 02110

Custodian
State Street Bank and Trust Company

200 Clarendon Street
Boston, MA 02116

Transfer Agent
American Stock Transfer & Trust Company

59 Maiden Lane
Plaza Level
New York, NY 10038

Eaton Vance Tax-Managed Buy-Write Opportunities Fund
The Eaton Vance Building
255 State Street
Boston, MA 02109

2551-8/08 CE-TMBWOFSRC

Item 2. Code of Ethics

The registrant has adopted a code of ethics applicable to its Principal Executive Officer, Principal Financial Officer and Principal Accounting Officer. The registrant undertakes to provide a copy of such code of ethics to any person upon request, without charge, by calling 1-800-262-1122.

Item 3. Audit Committee Financial Expert

The registrant’s Board has designated William H. Park, an independent trustee, as its audit committee financial expert. Mr. Park is a certified public accountant who is the Vice Chairman of Commercial Industrial Finance Corp (specialty finance company). Previously, he served as President and Chief Executive Officer of Prizm Capital Management, LLC (investment management firm) and as Executive Vice President and Chief Financial Officer of United Asset Management Corporation (“UAM”) (a holding company owning institutional investment management firms).

Item 4. Principal Accountant Fees and Services

Not required in this filing

Item 5. Audit Committee of Listed registrants

Not required in this filing.

Item 6. Schedule of Investments

Please see schedule of investments contained in the Report to Stockholders included under Item 1 of this Form N-CSR.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

The Board of Trustees of the Trust has adopted a proxy voting policy and procedure (the “Fund Policy”), pursuant to which the Trustees have delegated proxy voting responsibility to the Fund’s investment adviser and adopted the investment adviser’s proxy voting policies and procedures (the “Policies”) which are described below. The Trustees will review the Fund’s proxy voting records from time to time and will annually consider approving the Policies for the upcoming year. In the event that a conflict of interest arises between the Fund’s shareholders and the investment adviser, the administrator, or any of their affiliates or any affiliate of the Fund, the investment adviser will generally refrain from voting the proxies related to the companies giving rise to such conflict until it consults with the Board’s Special Committee except as contemplated under the Fund Policy. The Board’s Special Committee will instruct the investment adviser on the appropriate course of action.

The Policies are designed to promote accountability of a company’s management to its shareholders and to align the interests of management with those shareholders. An independent proxy voting service (“Agent”), currently Institutional Shareholder Services, Inc., has been retained to assist in the voting of proxies through the provision of vote analysis, implementation and recordkeeping and disclosure services. The investment adviser will generally vote proxies through the Agent. The Agent is required to vote all proxies and/or refer then back to the investment adviser pursuant to the Policies. It is generally the policy of the investment adviser to vote in accordance with the recommendation of the Agent. The Agent shall refer to the investment adviser proxies relating to mergers and restructurings, and the disposition of assets, termination, liquidation and mergers contained in mutual fund proxies. The investment adviser will normally vote against anti-takeover measures and other proposals designed to limit the ability of shareholders to act on possible transactions, except in the case of closed-end management investment companies. The investment adviser generally supports management on social and environmental proposals. The investment adviser may abstain from voting from time to time where it determines that the costs associated with voting a proxy outweighs the benefits derived from

exercising the right to vote or the economic effect on shareholders interests or the value of the portfolio holding is indeterminable or insignificant.

In addition, the investment adviser will monitor situations that may result in a conflict of interest between the Fund’s shareholders and the investment adviser, the administrator, or any of their affiliates or any affiliate of the Fund by maintaining a list of significant existing and prospective corporate clients. The investment adviser’s personnel responsible for reviewing and voting proxies on behalf of the Fund will report any proxy received or expected to be received from a company included on that list to the personal of the investment adviser identified in the Policies. If such personnel expects to instruct the Agent to vote such proxies in a manner inconsistent with the guidelines of the Policies or the recommendation of the Agent, the personnel will consult with members of senior management of the investment adviser to determine if a material conflict of interests exists. If it is determined that a material conflict does exist, the investment adviser will seek instruction on how to vote from the Special Committee.

Information on how the Fund voted proxies relating to portfolio securities during the most recent 12 month period ended June 30 is available (1) without charge, upon request, by calling 1-800-262-1122, and (2) on the Securities and Exchange Commission’s website at http://www.sec.gov.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Not required in this filing.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

No such purchases this period.

Item 10. Submission of Matters to a Vote of Security Holders.

No Material Changes.

Item 11. Controls and Procedures

(a) It is the conclusion of the registrant’s principal executive officer and principal financial officer that the effectiveness of the registrant’s current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant has been recorded, processed, summarized and reported within the time period specified in the Commission’s rules and forms and that the information required to be disclosed by the registrant has been accumulated and communicated to the registrant’s principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure.

(b) There have been no changes in the registrant’s internal controls over financial reporting during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Exhibits

(a)(1)		Registrant’s Code of Ethics – Not applicable (please see Item 2).
(a)(2)(i)		Treasurer’s Section 302 certification.
(a)(2)(ii)		President’s Section 302 certification.
(b)		Combined Section 906 certification.

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Eaton Vance Tax-Managed Buy-Write Opportunities Fund

By:	/s/ Duncan W. Richardson
	Duncan W. Richardson
	President


Date:	August 8, 2008

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:	/s/ Barbara E. Campbell
	Barbara E. Campbell
	Treasurer


Date:	August 8, 2008


By:	/s/ Duncan W. Richardson
	Duncan W. Richardson
	President


Date:	August 8, 2008