Renewed concerns that central banks will ease off their support for the global economy hit the U.S. stock market Tuesday, wiping out its gain for the month.
It looked bad from the start. Indexes began sliding from the opening bell, trailing markets in Asia and Europe, which were rattled when the Bank of Japan decided not to take any new steps to spur growth in the world's third-largest economy.
The Dow Jones industrial average dropped 116.57 points, or 0.8 percent, to 15,122.02.
The Standard & Poor's 500 index fell 16.68 points, or 1 percent, to 1,626.13.
The Nasdaq composite index fell 36.82 points, or 1.1 percent, to 3,436.95.
For the week:
The Dow is down 126.10 points, or 0.8 percent.
The S&P 500 is down 17.25 points, or 1 percent.
The Nasdaq is down 32.27 points, or 0.9 percent.
For the year:
The Dow is up 2,017.88 points, or 15.4 percent.
The S&P 500 is up 199.94 points, or 14 percent.
The Nasdaq is up 417.44 points, or 13.8 percent.