US Stocks Close: Three Major Indices Turn From Gains to Losses, Dow Falls Over 300 Points; Cloud Providers Find Support, Chip and Memory Stocks Stabilize; SpaceX Falls for Seven Straight Days, Drops Below $120

TradingKey - Impacted by the release of the Kimi K3 model by Chinese AI startup Moonshot AI and a new round of military conflict between the U.S. and Iran, the three major U.S. stock indices reversed earlier gains to close lower. Hyperscalers provided support against the trend, while chip and memory stocks stabilized as the market awaited Google's earnings report due on Wednesday. At the close, the Dow Jones Industrial Average fell 0.59% to 51,839.32; the Nasdaq Composite Index dropped 0.05% to 25,508.07; and the S&P 500 Index declined 0.19% to 7,443.28.

Jul 21, 2026 - 01:00
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US Stocks Close: Three Major Indices Turn From Gains to Losses, Dow Falls Over 300 Points; Cloud Providers Find Support, Chip and Memory Stocks Stabilize; SpaceX Falls for Seven Straight Days, Drops Below $120
TradingKey - Impacted by the release of the Kimi K3 model by Chinese AI startup Moonshot AI and a new round of military conflict between the U.S. and Iran, the three major U.S. stock indices reversed earlier gains to close lower. Hyperscalers provided support against the trend, while chip and memory stocks stabilized as the market awaited Google's earnings report due on Wednesday. At the close, the Dow Jones Industrial Average fell 0.59% to 51,839.32; the Nasdaq Composite Index dropped 0.05% to 25,508.07; and the S&P 500 Index declined 0.19% to 7,443.28.

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