Stocks making the biggest moves premarket: BABA, SATS, MU

BABA, BMY, EBAY & more

Check out the companies making the biggest moves premarket: AstraZeneca , Bristol Myers Squibb — Shares of the pharmaceutical companies moved in opposite directions after The Financial Times reported that the two were in talks to merger. AstraZeneca fell more than 4%, while Bristol Myers jumped more than 5%. ArcelorMittal — The steelmaker was up…

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Why Situational Awareness hedge fund imploded, even in a tame stock market

Champpixs | Istock | Getty Images The stock market looked unusually tranquil. Beneath the surface, one of Wall Street’s fastest-growing funds devoted to artificial intelligence investments was unraveling. In a matter of weeks, Leopold Aschenbrenner’s Situational Awareness went from managing roughly $45 billion to being forced into a sweeping reduction of its listed-stock positions as…

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