According to @EricBalchunas, MicroStrategy (MSTR) meets S&P 500 inclusion criteria alongside 18 other names, with a decision expected soon, but the Index Committee may delay due to an already overweight sector and its history of holding back high-profile additions such as Tesla, source: Eric Balchunas on X, Sep 5, 2025. He states that if admitted to the SPX, MSTR would be the roughly 114th largest constituent and could trigger about 15 billion dollars of forced buying from index-tracking and passive funds, source: Eric Balchunas on X, Sep 5, 2025. Balchunas credits James for the underlying flow-sizing work, highlighting the index-rebalance mechanics traders monitor around S&P additions, source: Eric Balchunas on X, Sep 5, 2025. MicroStrategy holds significant Bitcoin and is widely treated as a BTC proxy by investors, making any SPX-related flows in MSTR relevant for crypto-exposed portfolios, source: MicroStrategy investor relations disclosures.