Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in PHINIA Inc (PHIN), where a total volume of 2,780 contracts has been traded thus far today, a contract volume which is representative of approximately 278,000 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 43.6% of PHIN's average daily trading volume over the past month, of 637,395 shares..