 "Traders work on the floor of the New York Stock Exchange")
Wall Street opened lower on Tuesday, led by financial stocks, as investors remained cautious and chose safer assets on mounting concerns of a prolonged slowdown in global economic growth.
At 9:30 a.m. ET the Dow Jones industrial average was down 72.46 points, or 0.45 percent, at 15,954.59.
The S&P 500 was down 13.74 points, or 0.74 percent, at 1,839.7 and the Nasdaq Composite index was down 57.20 points, or 1.34 percent, at 4,226.55.
