BlackRock's iShares Preferred and Income Securities ETF (PFF) holds approximately $380 million in preferred shares and stock of Strategy, a Bitcoin treasury company. Stretch (STRC) is the fourth largest holding at $210 million in the ETF, followed by Strife (STRF), MSTR common stock, and Stride (STRD). This allocation highlights growing institutional interest in Bitcoin-related assets through preferred equities.
