U.S. stocks declined the most in a month, led by financial shares, on concern new disclosure requirements for investment banks will limit their profits.

The S&P 500 dropped 25.69 points, or 1.8 percent, to 1,392.57. The Dow Jones Industrial Average slid 206.48, or 1.6 percent, to 12,814.35. The Nasdaq Composite Index decreased 44.82, or 1.8 percent, to 2,438.49.

(Bloomberg)