Major U.S. stock indexes tumbled about 2,5% on Monday - the first trading day of the year - after weak Chinese economic data reignited fears of a global slowdown. Mainland Chinese shares fell 7%, triggering a new circuit breaker that prompted a trading halt, after surveys showed factory activity in the world's second largest economy shrank sharply in December.

All Dow stocks in negative area (19 of 30). Top looser - Cisco Systems, Inc. (CSCO, -4,49%).

All S&P sectors also in negative area. Top looser - Services (-3.0%).

At the moment:

Dow 16889.00 -452.00 -2.61%

S&P 500 1985.25 -50.25 -2.47%

Nasdaq 100 4445.00 -142.75 -3.11%

Oil 36.57 -0.47 -1.27%

Gold 1075.10 +14.90 +1.41%

U.S. 10yr 2.21 -0.06