Premarket movers: Mag 7 stocks are mostly lower: NVDA falls 7% as the company’s board has been working with an outside firm to identify potential replacements for Chief Executive Officer Jensen Huang following reports of multiple extramarital affairs (Alphabet (GOOGL) -0.2%, Amazon (AMZN) +0.4%, Apple (AAPL) +0.4%, Meta Platforms (META) -0.6%, Microsoft (MSFT) -0.2%, Tesla (TSLA) -0.9%) Artificial intelligence-related stocks fall amid the leadership crisis at Nvidia. Advanced Micro Devices (AMD) climbs 1% and and Broadcom (AVGO) rises nearly 1% on bets they may win business from chip giant Nvidia. Corteva (CTVA) falls 9% after after the agricultural chemical and seed company cut its full-year Ebitda guidance, citing materially weaker market conditions in Brazil. Digi International (DGII) falls 18% after the communications software company’s first-quarter and full-year outlooks failed to impress. Eli Lilly (LLY) gains 2% after its China unit said Foundayo tablet was approved as a Class 1 new drug for adult weight managbioement by the country’s National Medical Products Administration, according to a WeChat statement. Maravai LifeSciences (MRVI) climbs 4% after KeyBanc upgraded the stock to overweight, saying the life sciences firm is best positioned to benefit from Democrats’ win in the US midterm elections. National Vision Holdings (EYE) falls 16% after the the optical retailer posted disappointing third quarter revenue. Nebius Group (NBIS) falls 8% after the provider of a cloud platform designed for AI builders sees 2027 capital expenditures of $40 billion to $45 billion versus the Bloomberg average analyst estimate of $28.76 billion. T1 Energy (TE) falls 9% after the solar equipment maker reported third-quarter revenue that missed the average analyst estimate as production costs rose. Tetra Tech (TTEK) climbs 10% after the engineering company’s 2027 net revenue forecast topped analysts’ estimates at the midpoint of the range. Yeti (YETI) plunges 7% after the maker of travel drinkware and coolers cut its adjusted earnings per share guidance for the full year.