According to @KookCapitalLLC, social posts claim MicroStrategy (MSTR) will be added to the S&P 500 this Friday, while the author notes MSTR is eligible but questions whether the Index Committee will actually add it. According to S&P Dow Jones Indices methodology, meeting eligibility criteria does not guarantee inclusion and membership changes are decided by the Index Committee, typically announced after the U.S. market close on the first Friday of March, June, September, and December via official press release. According to S&P Dow Jones Indices implementation guidelines, confirmed additions generally prompt passive index and closet-index fund buying at the effective date, creating execution and liquidity impacts that active traders monitor. According to MicroStrategy investor relations and SEC filings, MSTR’s equity is highly sensitive to the company’s Bitcoin (BTC) holdings, meaning any inclusion-driven flows could intersect with BTC-linked volatility.