Wall Street extends gains as cooling inflation and bank earnings lift sentiment

US stocks extended their advance on Wednesday, with the S&P 500 up 0.4%, the Nasdaq 0.6% and the Dow 0.3%. June producer prices fell more than expected, a day after cooler consumer inflation, pulling Treasury yields lower and trimming rate-hike bets. Strong results from BlackRock and Morgan Stanley kept the big banks' earnings streak going, though chip stocks lagged.