Check out the companies making the biggest moves in premarket trading: Tesla — CEO Elon Musk disclosed he bought $1 billion worth of shares of the electric vehicle maker on Friday, helping send the stock nearly 8% higher. Nvidia — The dominant maker of semiconductors for artificial intelligence applications shed almost 2% after China’s market regulator said a preliminary investigation found the chipmaker violated the country’s antimonopoly law . The investigation will continue. On Semiconductor , Analog Devices , Texas Instruments — China launched an antidumping probe into certain analog chips from the U.S. Shares of On Semiconductor fell 2%, while Analog Devices and Texas Instrument each dropped about 3%. Gemini Space Station — The Winklevoss’ crypto exchange moved nearly 2% higher. Gemini debuted on the Nasdaq on Friday, jumping 14% during its first day of trading. Corteva — The agriculture company added 1% following a Wall Street Journal report that it is considering a breakup that would split its pesticide and seed businesses. Union Pacific — The Omaha-based railroad rose more than 1% on the back of an upgrade at Citigroup to buy from neutral. The bank said Union Pacific looks “too compelling to ignore” due to strong operational execution and after its recent share price decline, and partly due to more clarity on its planned merger with Norfolk Southern . Hims & Hers Health — The digital health stock fell almost 3%. Martin Makary, Commissioner of the Food and Drug Administration, said in a medical journal piece that Hims & Hers’ Super Bowl advertisement was a “breach” of regulations. — CNBC’s Alex Harring contributed reporting. (Learn the best 2026 strategies from inside the NYSE with Josh Brown and others at CNBC PRO Live. Tickets and info here .)
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