Stock Market 7 December 2025

U.S. markets were closed Friday for Juneteenth, resulting in 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 led the rally, with Intel jumping 10.6% after news that Apple is partnering with Intel for U.S. chip design and manufacturing. Micron’s stock surged 15.5% for the week, closing at $1,133.99, with investors focused on its upcoming earnings as a test for the AI memory rally. Sandisk also posted strong gains, ending at $2,184.75, up 11.54%. Amkor Technology rose 4.7% after TSMC signed a 10-year deal for advanced packaging and testing in Arizona. Astera Labs, CoreWeave, Nebius, Rocket Lab, and Teradyne are set to join the Nasdaq-100, with CoreWeave up 17.3% and Astera Labs up 13.6% for the week. Teradyne gained 8.6%, driven by AI-related test demand. Vertiv shares climbed nearly 10%, supported by AI data-center cooling demand. Robinhood rose 16% but plans to cut about 10% of its workforce, incurring $28 million in restructuring charges. Oklo ended up 4%, with Centrus securing a letter for HALEU fuel deliveries starting in 2029. Redwire fell 5.1% as investors weighed backlog growth against a $500 million share program. Applied Optoelectronics dropped 4.3%, while Netflix slipped 3.7%. Coherent rose 2.8% after signing a letter of intent for up to $50 million from the U.S. CHIPS Act. The U.S. Mint announced new coin releases for the 250th anniversary of U.S. independence.