U.S. stocks declined for the third time in four days as health care companies took center stage on Tuesday. Drugmakers fell after President Donald Trump said he wants to bring drug prices down. Insurers rose and hospital companies dropped after Republicans in Congress introduced a bill intended to replace the 2010 Affordable Care Act.

On Tuesday:

The Standard & Poor's 500 index fell 6.92 points, or 0.3 percent, to 2,368.39.

The Dow Jones industrial average slid 29.58 points, or 0.1 percent, to 20,924.76.

The Nasdaq composite gave up 15.25 points, or 0.3 percent, to 5,833.93.

The Russell 2000 index of small-company stocks shed 9.37 points, or 0.7 percent, to 1,374.88.

For the week:

The S&P 500 is down 14.73 points, or 0.6 percent.

The Dow is down 80.95 points, or 0.4 percent.

The Nasdaq is down 36.82 points, or 0.6 percent.

The Russell 2000 is down 19.25 points, or 1.4 percent.

For the year:

The S&P 500 is up 129.56 points, or 5.8 percent.

The Dow is up 1,162.16 points, or 5.9 percent.

The Nasdaq is up 450.81 points, or 8.4 percent.

The Russell 2000 is up 17.75 points, or 1.3 percent.