Stocks are closing lower on Wall Street Wednesday as losses by health care companies outweigh gains elsewhere in the market, the AP reports. Investors hammered insurers amid fears over the potential impact on their profits from health reforms being discussed in Congress. Anthem fell 3.6%, Cigna lost 3.7%, and UnitedHealth dropped 1.9%. Qualcomm gained another 12.2%, adding to Tuesday's 23% gain after the chipmaker settled a legal dispute with Apple. The S&P 500 index fell 6 points, or 0.2%, to 2,900. The Dow Jones Industrial Average fell 3 points to 26,449. The Nasdaq fell 4 points or 0.1% to 7,996. (More stock market stories.)