According to @StockMKTNewz, Robinhood (HOOD) is now a member of the S&P 500. According to S&P Dow Jones Indices, index-tracking funds typically rebalance to hold new S&P 500 constituents, creating mechanical buy and sell flows that can impact short-term liquidity and trading volume. According to Robinhood Markets’ product disclosures and SEC filings, the company offers cryptocurrency trading, including BTC and ETH, and reports crypto transaction revenue, linking HOOD’s stock performance to retail crypto activity and broader digital asset sentiment.

According to @FarsideUK, the S&P 500 index inclusion decision for MicroStrategy (MSTR) is negative, indicating the stock will not be added at this time (source: @FarsideUK on X, Sep 5, 2025). According to S&P Dow Jones Indices methodology, only S&P 500 constituents are mechanically purchased by index-tracking funds during rebalances, so non-inclusion implies no immediate passive buying from S&P 500 trackers (source: S&P Dow Jones Indices Index Methodology). According to MicroStrategy’s public disclosures, the company holds substantial bitcoin as its primary treasury reserve asset, making MSTR a common BTC proxy among some investors, so the removal of an index-inclusion catalyst keeps near-term trading more sensitive to BTC price and company-specific flows (source: MicroStrategy investor relations and SEC filings). For traders, this setup tilts focus to BTC correlation, liquidity, and any further corporate balance-sheet updates rather than index-driven demand (sources: @FarsideUK; S&P Dow Jones Indices; MicroStrategy IR).

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.