Pre‑market Stock Movers: CoreWeave Slumps, Rocket Lab Delays Launch, SK Hynix Dips, Penske Go‑Private Deal, Walmart and Crocs Gain

CoreWeave shares fell 6% for a second day as investors voiced concerns about the cloud‑infrastructure technology firm’s heavy borrowing to fund its artificial‑intelligence expansion. Rocket Lab dropped roughly 10% after the space‑launch company delayed the debut of its Neutron rocket until 2027. SK Hynix slid more than 7% amid worries over financing the AI build‑out, echoing a 7.6% decline in the South Korean Kospi index overnight. Penske Automotive rose 8% following an announcement that it will be taken private by Motown Acquisition Corp.—an entity owned by Penske Corp. and Mitsui—in a cash deal valued at $212 per share, a near‑9% premium to the previous close; the transaction is slated to close in the first quarter of 2027. Walmart jumped more than 2% after Deutsche Bank upgraded the retailer to “buy” from “hold,” citing a favorable 2027 outlook, expected margin improvements, and the potential for higher inflation to boost consumer traffic. Crocs advanced nearly 2% after Barclays raised its rating on the footwear maker to “overweight” from “equal weight,” with analyst Adrienne Yih highlighting product innovation, category expansion, and international growth as key drivers.

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