The S&P 500 (^GSPC) has never been this top-heavy.
The "Magnificent Seven" tech stocks — Apple (AAPL), Alphabet (GOOGL, GOOG), Microsoft (MSFT), Amazon (AMZN), Meta (META), Tesla (TSLA), and Nvidia (NVDA) — make up 29% of the S&P 500's market cap.
And a chart in Goldman Sachs' 2024 US Equity Outlook shows that's the largest portion of S&P 500 market cap ever dominated by just…