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NVIDIA Hits $5.78 Trillion Valuation, Driving ETF Flows

10/6/2026

NVIDIA's market capitalization reached an estimated $5.78 trillion on Monday as the stock hit a fresh all-time intraday high of $239.86.

This surge follows seven weeks of sideways trading and a company announcement to increase its share buyback authorization by a record $150 billion, raising total repurchase capacity to $235 billion through fiscal 2028.

The buyback, described as the largest in corporate history, reflects management confidence in the sustainability of the AI infrastructure boom.

As the world's most valuable publicly traded company approaches the $6 trillion milestone, NVIDIA now accounts for 11% of the Nasdaq Composite and 8% of the S&P 500 Index.

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