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S&P 500 reaches new high at 7,173.91 on AI strength, while Nasdaq rises 0.20% and Dow slips on geopolitical tensions

Yahoo Finance AI · April 27, 2026

AI Summary

  • •The S&P 500 inched up 0.12% to 7,173.91, reaching a new high. The Nasdaq Composite rose 0.20% to 24,887.10 on AI strength, while the Dow Jones Industrial Average slipped 0.13% to 49,167.79. Nvidia and Micron Technology advanced on positive analyst commentary.
  • •Microsoft ended the day in the green despite wobbling after announcing with OpenAI that it would end its exclusive access to the technology. Poet Technologies cratered almost 50% after losing key orders from Marvell Technology.
  • •Oil prices rose, with WTI crude briefly topping $97 a barrel as blockades continue to stop tankers from passing through the Strait of Hormuz. Investors are watching earnings reports this week from several of the Magnificent Seven companies.
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