Stocks weakened, but were still mixed Wednesday afternoon. Blue chips continued to outperform. The Dow Jones industrial average was up 0.2%, thanks to big gains in Walt Disney (DIS) and Visa (V). The former reported upbeat quarterly results late Tuesday. But the broader S&P 500 fell 0.3% and the Nasdaq lost 0.2%. Turnover was tracking higher across the board in the stock market today.