Wall Street climbs after Yellen speech
(Close): The S&P 500 closed at its highest level for the year boosted by remarks from Federal Reserve chair Janet Yellen.
Ms Yellen said that the Fed should "proceed cautiously" when it came to raising interest rates in a speech to the Economic Club of New York.
The tech-heavy Nasdaq index added 79.84 points closing at 4,846.62.
Shares of Apple rose 2.4%. Earlier the US Justice Department withdrew its legal battle to force Apple to unlock the phone of one the San Bernardino shooters.
Spice maker McCormick saw its stock price climb 2.3% after it reported first quarter profit increased to $93.4m.