U.S. stocks fell Thursday in a choppy trading session, dragged down by investor worries about the impact the Federal Reserve would have on markets if it raises interest rates faster than once anticipated.

All three major U.S. indexes finished the session lower, erasing intraday gains. The S&P 500 edged down 4.53 points, or 0.1%, to 4696.05. The Nasdaq Composite declined by 19.31 points, or 0.1%, to 15080.86. The Dow Jones Industrial Average lost 170.64 points, or 0.5%, to 36236.47.