Major stock indexes tumbled more than 1 percent at the open on Thursday, resuming their downturn after a labor market report became the latest datapoint to show the economy has stalled.

The Dow Jones industrial average <.DJI> slid 133.66 points, or 1.12 percent, at 11,762.78. The Standard & Poor's 500 Index <.SPX> took off 15.27 points, or 1.21 percent, at 1,245.07. The Nasdaq Composite Index <.IXIC> was down 42.37 points, or 1.57 percent, at 2,650.70.

New U.S. claims for unemployment benefits edged down last week, pointing to a marginal improvement in the labor market, the Labor Department said. For details, see

(Reporting by Ryan Vlastelica)