The Dow fell 326 points -- droppping two percentage points.
It was the worst drop in seven months.
Financial Advisor Tyler Simonis with Northwest Quadrant Wealth Management say we were due.
"So the market is down six percent from the highs at the end of last year. But it wouldn't surprise me if the market sold off another six percent. We haven't had a ten percent fall in over two years and historically we have a correction once a year."
Weak reports on U.S. manufacturing and construction spending prompted more concerns about the economy.