US stocks today: Nasdaq, S&P 500 end lower on renewed AI growth worries ahead of big tech earnings
- Posted on April 28, 2026
- By Business News Today
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- 1 min read
Technology stocks experienced a pullback as market sentiment shifted following concerns about artificial intelligence valuations and disappointing guidance from OpenAI. Traders are bracing for earnings announcements from leading tech companies while simultaneously monitoring the Federal Reserve's inflation outlook, complicated by rising energy prices. The retreat from recent peaks reflects investor caution heading into a critical reporting season that will reveal whether AI investments justify current market multiples.
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