Stocks are ending slightly higher on Wall Street, led by gains in health care companies, the AP reports. The gains the market made on Tuesday, while meager, were enough to break a two-day losing streak. Merck rose 1%, the second-biggest gain in the Dow Jones industrial average. General Electric rose 0.8%. SeaWorld Entertainment slumped almost 5% after saying it would suspend its dividend payments. The Dow rose 9 points, or 0.1%, to 18,129. The Standard & Poor's 500 index gained less than 1 point to 2,139. The Nasdaq composite climbed 6 points, or 0.1%, to 5,241. (More Dow Jones stories.)