[BlackRock's PFF ETF Holds $380 Million Worth of Strategy Preferred Stocks] Odaily Planet Daily reports that perpetual preferred stock Stretch (STRC) under Bitcoin treasury company Strategy has become the fourth-largest holding of BlackRock's iShares Preferred and Income Securities ETF (PFF ETF), with an allocation of $210 million. The ETF also holds several other Strategy preferred stocks, with a total value of approximately $380 million, including: 1. $97.5 million allocated to Strife (STRF), with a weight of 0.69%; 2. $90 million allocated to MSTR common stock, with a weight of 0.64%; 3. $73 million allocated to Stride (STRD), with a weight of 0.51%. (CoinDesk)