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Three Tech Giants Reach Record Share of S&P 500

Makkler Newsroom
October 6, 2026

Nvidia, Apple and Microsoft now account for more than 21% of the S&P 500, with recent gains lifting their combined weight.

Key takeaways

  • Nvidia, Apple and Microsoft represent more than 21% of the S&P 500.
  • Nvidia announced a $150 billion buyback authorization increase, bringing its total to $235 billion.

Nvidia, Apple and Microsoft together represent more than 21% of the S&P 500, a record level of concentration, according to data from Creative Planning.

The three stocks have risen over the past month on favorable news. By comparison, IBM, AT&T and ExxonMobil together made up 13.4% of the index at their peak in the mid-1980s.

Nvidia announced a $150 billion increase to its stock buyback plan two weeks ago, bringing its total authorization to $235 billion. Its shares are now near a record high.

Apple is also near a record after a product unveiling in mid-September. Microsoft shares have advanced as analysts raised earnings estimates for this year and next, citing expectations that AI demand will support Azure cloud sales.

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Further reading

This article was produced with the help of AI technology. Source: Yahoo Finance

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