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Stock Market 7 December 2025
U.S. equity markets were closed Friday for Juneteenth, resulting in a holiday-shortened 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 jumping 10.6% after President Donald Trump announced a partnership between Apple and Intel for U.S. chip design and manufacturing. Micron’s stock surged 15.5% for the week, closing at $1,133.99 on Thursday, as investors anticipate its upcoming earnings, which are expected to test the strength of the AI memory rally. Other semiconductor-related stocks also performed strongly: Sandisk rose 11.54% to $2,184.75, Amkor Technology gained 4.7% to $90.46 after securing a 10-year deal with TSMC, and Teradyne climbed 8.6% for the week, closing at $437.92, ahead of its addition to the Nasdaq-100. Astera Labs and Nebius are also set to join the Nasdaq-100, with Astera Labs up 13.6% and Nebius up 2.06% for the week. Marvell rose 7.27% to $310.58 and is entering the S&P 500. Vertiv shares climbed nearly 10% for the week, driven by demand for AI data-center cooling. Rocket Lab ended up 4.7% for the week after an analyst upgrade. Plug Power rose 3.3%, while PayPal gained 2.4%. In contrast, Applied Optoelectronics fell 4.3%, Redwire dropped 5.1% amid concerns over a new share program, and Netflix slipped 3.7%. Aditxt surged 127.27% on heavy volume, with significant insider selling reported.