U.S. blue-chip stocks climbed again on Wednesday, extending their winning streak to a fourth straight session and sending the Dow Jones index to record territory. The move underscored renewed investor appetite for old-economy leaders outside the red-hot AI trade.The Dow jumped 0.9% to 48,350 points, topping its late-October highs. Financial heavyweights Goldman Sachs Group Inc. (NYSE:GS), JPMorgan Chase & Co. (NYSE:JPM), and American Express Co. (NYSE:AXP) each set fresh records, helping the index outperfor ...