According to @CNBC, the S&P 500 benchmark will reshuffle this month and potential additions are being watched by traders for inclusion-driven flows, creating event risk across equities and digital assets. source: @CNBC S&P 500 constituent changes are typically announced in early December and take effect at the close on the third Friday of December, concentrating execution into the rebalance window. source: S&P Dow Jones Indices Over 15 trillion dollars is benchmarked to the S&P 500 and roughly 7 trillion dollars is indexed, so new inclusions usually trigger significant passive buying from index funds and ETFs. source: S&P Dow Jones Indices Academic literature shows newly added stocks tend to post positive abnormal returns around announcement and effective dates, with partial reversals thereafter, which informs event-driven trading setups. source: Harris and Gurel 1986; Hegde and McDermott 2003 For crypto traders, US equity rebalancing can influence risk appetite and liquidity, with studies documenting stronger co-movement between BTC, ETH and US equities during stress and macro events. source: Bank for International Settlements 2022; Federal Reserve 2022 Key watchpoints are the official S&P announcement after the US close, passive demand estimates based on free float market cap, and any spillover into BTC and ETH volatility as equity funds rebalance. source: S&P Dow Jones Indices; @CNBC

According to Eric Balchunas, passive funds have reached $16 trillion in assets, constituting 52.6% of the total fund market after gaining a 2% share in the past year. Passive equity funds hold a 63% share, whereas passive bonds account for 37%. The total fund market controls 26% of the stock market.