Health Insurers, Stock Market | featured news

UnitedHealth Group, the health insurance company, will replace Kraft Foods in the Dow Jones industrial average, the most widely known barometer of the American stock market... The change takes effect Sept. 24. S&P Dow Jones Indices, which manages the average, said it was dropping Kraft because it is about to become a much smaller company after spinning off its North American grocery business.

Stocks of hospital companies rose sharply and insurance companies fell Thursday after the Supreme Court upheld a requirement that almost all Americans carry health insurance. The stock of Hospital Corp. of America, the largest private hospital chain in the United States, rose a little more than 7 percent. Quest Diagnostics, which runs laboratories, rose almost 3 percent.