PGX offers exposure to approximately 84% of its assets in preferred stocks and 27% in bonds. Check out what types of investors the fund is structured for.

PGX, according to its website, provides “impartial, third-party comic-grading.” “It is beyond crazy that a crime like this happened.

Looking at average daily volume, PGX has been one of the top funds in Invesco's diverse roster of ETFs. Why are investors flocking to the ETF?