币界网报道:MicroStrategy's (MSTR) perpetual preferred shares surged as analysts speculate potential S&P 500 inclusion after Bitcoin's record monthly close boosted earnings. MSTR shares rose 5% to over $400, while preferred shares STRK and STRF jumped 15% and 7.5% respectively. Analyst Jeff Walton estimates Bitcoin's June close at $107,750 could translate to $11B earnings impact for MSTR, potentially meeting S&P 500 criteria. STRK now yields 6.6%, delivering 42% returns since February, outperforming Bitcoin's 11% and S&P's 2% gains. The preferred shares offer yields between 6