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Stock Market 9 February 2026
U.S. markets were closed Friday for Juneteenth, leading to a holiday-shortened trading week. The S&P 500 rose 0.93%, the Nasdaq gained 2.43%, and the Dow was up 0.71%. Semiconductor stocks rebounded, with Intel rising 10.6% after an announcement that Apple will partner with Intel for U.S. chip design and manufacturing. Micron’s stock jumped 15.5% for the week, closing at $1,133.99, with upcoming earnings seen as a key test for the AI memory rally. Sandisk also surged 11.54% to $2,184.75, and the Philadelphia semiconductor index gained 7%. Amkor Technology rose 4.7% after TSMC signed a 10-year deal for advanced packaging and testing in Arizona. Coherent closed up 2.8% and signed a letter of intent for up to $50 million from the U.S. CHIPS Act. Applied Optoelectronics fell 4.3% for the week. Several companies are joining the Nasdaq-100: CoreWeave (up 17.3%), Astera Labs (up 13.6%), Nebius (up 2.06%), Rocket Lab (up 4.7%), and Teradyne (up 8.6%). Vertiv climbed nearly 10% on AI data-center cooling demand. Robinhood rose 16% but plans to cut about 10% of its workforce, incurring $28 million in restructuring charges. Oklo gained 4% and Centrus has a letter for HALEU fuel deliveries starting in 2029. Redwire fell 5.1% as investors weighed backlog growth against a $500 million share program. Netflix slipped 3.7% for the week. The U.S. Mint is launching a one-year coin series for the 250th anniversary of U.S. independence, with sales of the 1776-2026 Proof American Silver Eagle resuming June 24.