US stocks open mostly higher; Merck leads a rebound in the health care sector

MarketsAssociated Press

Stocks are opening mostly higher as the health care sector rebounds from a slump the day before.

Drugmaker Merck soared 6 percent early Tuesday, the most in the Dow Jones industrial average, after reporting earnings and revenue that came in well ahead of what analysts were looking for.

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The Container Store plunged 24 percent after releasing earnings that were far below estimates. It also issued a disappointing forecast.

The Dow rose 28 points to 18,062 as of 9:35 a.m. Eastern time.

The Standard & Poor's 500 index was flat at 2,108. The Nasdaq composite was up a point at 5,061.

Health care stocks rose the most in the S&P 500.

Bond prices fell. The yield on the 10-year Treasury note rose to 1.95 percent.