Jabil Circuit shares got a boost after the contract electronics manufacturer reported improved earnings in line with forecasts.
Burger King shares rallied after the fast-food chain debuted on the New York Stock Exchange for the third time.
Currencies and commodities: The dollar was down against the euro and the British pound but up against the Japanese yen.
Gold futures for August delivery dropped $7.40 to settle at $1,615.80 an ounce.
Bonds: The price on the benchmark 10-year U.S. Treasury fell, pushing the yield up to 1.66% from 1.62% late Tuesday.
-- CNN's Matthew Chance contributed to this article.