According to @charliebilello, the Magnificent 7 account for a record 35.9% of the S&P 500 market cap but only 26.8% of its profits, source: @charliebilello on X dated Nov 7, 2025 and the linked YouTube video. This creates a 9.1 percentage-point gap between market-cap weight and profit share, source: calculation from @charliebilello’s figures on X. In a cap-weighted S&P 500, larger constituent weights drive more of the index return, heightening sensitivity to these seven stocks, source: S&P Dow Jones Indices methodology. For crypto traders, shifts in US mega-cap equity concentration can affect broad risk-on or risk-off dynamics that BTC has historically co-moved with since 2020, source: IMF 2022 analysis on rising crypto equity correlations.