NEW YORK (AFP) - Wall Street stocks tumbled on Thursday, losing about 2 per cent in a broad sell-off, as weak economic data from Germany heightened concerns about poor overseas growth.

At the market close, the Dow Jones Industrial Average stood at 16,663.17, down a heavy 331.05 points (1.95 per cent).

The broad-based S&P 500 shed 40.38 (2.05 per cent) to 1,928.51, while the tech-rich Nasdaq Composite Index lost 90.26 (2.02 per cent) at 4,378.34.