Stocks of credit-card companies slump as Wall Street overall drifts in mixed trading

The S&P 500 edged down by 0.1% from its all-time high as U.S. stocks drifted through mixed morning trading, while prices for gold and other investments that tend to do well when investors are nervous rose. The value of the U.S. dollar also dipped against the euro and other currencies amid concerns that the Fed may have less independence in setting The Dow Jones Industrial Average was down 179 points, or 0.4%, as of 10 a.m. Eastern time, and the Nasdaq composite was nearly unchanged.Some of the market's sha ...