S&P 500 turns positive for 2016 as commodities rally

The S&P 500 turned positive for the year on Thursday, a day after the Federal Reserve lowered expectations for the number of interest rate hikes this year. The dovish stance from the Fed weighed on the U.S. dollar, which in turn boosted commodity prices across the board. The best performing sectors on the S&P 500 on Thursday were materials and energy .