The S&P 500 recently hit another record high on the continued strength of artificial intelligence and with some significant help from Nvidia (NASDAQ: NVDA) stock's relentless climb. Nvidia now makes up 5% of the index, and its market cap blasted through the $2 trillion mark, making it worth more than Amazon (NASDAQ: AMZN) for the first time, as shown below.

AMZN Market Cap data by YCharts

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Source Fool.com