According to MarketWatch, memory and chip stocks surged on Tuesday (21/07). Micron Technology rose 12.2%, SanDisk rose 14.4%, and SK Hynix ADR jumped 13.8%. Western Digital rose 12.5% and Seagate Technology rose 11.1%. The Philadelphia Semiconductor Index rose 5.2%, recording its strongest session in weeks. The breakout came after investors reassessed the level of threat that China’s open-source AI models pose, especially Kimi K3 of Moonshot AI.

MU-1.07%
SKHY-3.86%
SKHYV-0.98%
STX1.80%
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Micron Surges 12.2%, Chip Stocks Rally on July 21 Amid China AI Model Debate
According to MarketWatch, memory and chip stocks surged on Tuesday (July 21), with Micron Technology jumping 12.2%, SanDisk rising 14.4%, and SK Hynix ADR climbing 13.8%. Western Digital gained 12.5% and Seagate Technology advanced 11.1%. The Philadelphia Semiconductor Index rose 5.2%, marking its b
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