Aug 2 (Reuters) - U.S. stock indexes slumped at the open

on Friday, with the Nasdaq on track to confirm it was in a

correction, after weak employment numbers exacerbated worries of

a slowdown in the economy, with Amazon ( AMZN ) and Intel's ( INTC ) slumping on

downbeat forecasts.

The Dow Jones Industrial Average fell 272.6 points,

or 0.68%, at the open to 40,075.33. The S&P 500 fell 70.1

points, or 1.29%, at the open to 5,376.63​, while the Nasdaq

Composite dropped 413.7 points, or 2.41%, to 16,780.446

at the opening bell.