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Health insurer Aetna rose 38 cents to $44.33 after reporting a 2 percent gain in third-quarter earnings. Higher revenue and lower-than-expected health care claims helped the company beat Wall Street’s profit expectations.

Apple and Amazon.com report earnings after the market closes.

As investors moved into stocks, they sold U.S. government bonds, sending yields higher. The benchmark 10-year U.S. Treasury note yielded 1.83 percent, up from 1.79 percent late Wednesday.