U.S. stocks swung between gains and losses Thursday as investors tried to assess what kind of impact the Federal Reserve would have on markets if it raises interest rates faster than once anticipated.
Major U.S. indexes wavered in recent trading. The S&P 500 added 0.1%, while the technology-heavy Nasdaq Composite ticked up 0.3%. The Dow Jones Industrial Average lost about 100 points, or 0.3%.