Here are the largest holdings in the S&P 500
Nvidia $NVDA 8.4%
Apple $AAPL 6.8%
Microsoft $MSFT 4.8%
Amazon $AMZN 4.2%
Alphabet $GOOGL 3.6%
Broadcom $AVGO 3.2%
Alphabet $GOOG 2.9%
Meta $META 2.1%
Tesla $TSLA 2.0%
Micron $MU 1.4%
Berkshire Hathaway $BRK.B 1.4%