Stocks fell sharply after Japan raised the severity of its nuclear crisis and Alcoa Inc. reported disappointing sales. A drop in oil prices pulled down energy stocks. Markets also fell in Asia and Europe after Japan said the crisis at its crippled nuclear plant was as serious as the 1986 Chernobyl accident. The Dow Jones industrial average had its largest drop since March 16, when markets sank on fears of a nuclear meltdown in Japan.
The Dow Jones industrial average fell 117.53 points, or 0.9 percent, to close at 12,263.58.
The S&P 500 index fell 10.30, or 0.8 percent, to 1,314.16.
The Nasdaq composite index fell 26.72, or 1 percent, to 2,744.79.
For the week:
The Dow is down 116.47, or 0.9 percent.
The S&P is down 14.01, or 1 percent.
The Nasdaq is down 35.62, or 1.3 percent.
For the year to date:
The Dow is up 686.07, or 5.9 percent.
The S&P is up 56.52, or 4.5 percent.
The Nasdaq is up 91.92, or 3.5 percent.