“Pig in a poke” is an English idiom first used in the Middle Ages.1 It is a deceptive trick or a “blind bargain.” Across the pond, many folks bought the poke without looking inside. Some people thought they were buying pork or a small pig and were surprised to find they had been sold something [...] The post Pig in the Poke? Why It’s Time to Bag the Agg appeared first on ETF Trends .