Here are the biggest calls on Wall Street on Wednesday: Bernstein reiterates Nvidia as outperform Bernstein said it's sticking with its outperform rating on the stock. " Argus upgrades Berkshire Hathaway to buy from hold Argus said it's getting bullish on shares of Warren Buffett's multinational conglomerate. UBS reiterates First Solar as buy UBS raised its price target on First Solar to $350 per share from $270. Bank of America reiterates Apple as buy Bank of America said it's bullish on top pick Apple and its entry into iPhones with AI. Bank of America reiterates Dell as buy Bank of America raised its price target on Dell to $180 per share from $130.

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Persons: Bernstein, Berkshire Hathaway, Argus, it's, Fluence, LBRT, Jefferies, TD Cowen, Medpace, Cowen, Morgan Stanley, JPMorgan, Wells, Baird, MM120, Truist, Dell, Jack Hartung, Cindy Olsen Organizations: Nvidia, Argus, Warren, UBS, Citi, Liberty Energy, United Airlines, Airlines, American Airlines, " Bank of America, Apple, Bank of America, Netflix, Disney, RBC, Eldorado, Eldorado Gold, BTC, Citi downgrades Bank, JPMorgan, Mind, of America, Norwegian Cruise Line Holdings, Dell, Field Locations: Berkshire, U.S, OFS, United, El Paso, Parks, F4Q, CAVA, Chicago