Overlap among PFF, PFFD, PGX, PGF and CWBPFF is an exchange-traded fund (ETF) that invests preferred stocks (fixed-rate, floating-rate, and convertible).
PFFD is similar to PFF, but the number of holdings of PFFD is almost half compared to PFF. The expense ratio of PFFD is also about half of PFF.
PGX is an ETF that invests fixed-rate