According to @EricBalchunas, MicroStrategy (MSTR) did not receive the anticipated inclusion, and the stock is down about 2% intraday (source: Eric Balchunas on X, Sep 5, 2025). No additional details on what inclusion refers to were provided in the post, limiting visibility into the driver beyond the immediate price reaction (source: Eric Balchunas on X, Sep 5, 2025).

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.

According to @adriannewman21, market confidence in the mNAV narrative is being questioned as MSTR and SBET issue equity and underperform their underlying assets, raising doubt about the treasury-company approach to crypto exposure (source: @adriannewman21). According to @adriannewman21, this dilution-driven underperformance challenges the appeal of equity-based crypto proxies and may shift focus to tracking mNAV premiums/discounts versus underlying and the pace of new share issuance (source: @adriannewman21). According to @adriannewman21, traders are reacting to widening performance gaps relative to underlying assets, which can compress valuation multiples for treasury companies and impact BTC proxy trades that rely on tight mNAV alignment (source: @adriannewman21).