By Steve Gelsi Analyst recommends GS, JEF, as well as BAC, C, JPM, MS and USB Oppenheimer analyst Chris Kotowski has reiterated overweight ratings on Goldman Sachs Group Inc. and Jefferies Financial Group Inc. as standouts among a class of relatively cheap big-bank stocks. “You wouldn’t know it from the stock market…but big banks did fine in 2023,” Kotowski said in a research note published Tuesday. He’s recommending that investors “in particular” overweight their exposure to Goldman Sachs Group Inc. (GS) and Jefferies (JEF), but the entire group including Bank of America Corp. (BAC), Citigroup Inc. (C), JPMorgan Chase & Co. (JPM), Morgan Stanley (MS) and U.S. Bancorp (USB) “remains significantly undervalued,” he said. The positive note from Oppenheimer came as Morgan Stanley analyst Analyst Betsy Graseck said she is “back & bullish” on big banks. Also read: Morgan Stanley upgrades Bank of America, Goldman Sachs and Citi on ‘lightened