The stock market endured its worst day in three weeks on Tuesday as investors fretted over Greece's debt crisis and a surge in the U.S. dollar. Investors seeking safety bought U.S. government bonds. U.S. markets were closed Monday for the Memorial Day holiday.

On Tuesday:

The Dow Jones industrial average fell 190.48 points, or 1 percent, to 18,041.54.

The Standard & Poor's 500 index closed down 21.86 points, or 1 percent, to 2,104.20.

The Nasdaq composite lost 56.61 points, or 1.1 percent, to 5,032.75.

For the year:

The Dow is up 218.47 points, or 1.2 percent.

The S&P 500 index is up 45.30 points, or 2.2 percent.

The Nasdaq is up 296.70 points, or 6.3 percent.