March 17 (Reuters) - Wall Street's main stock indexes

opened lower on Monday as investors assessed the latest batch of

economic data to gauge the impact of President Donald Trump's

tariffs on the economy.

The Dow Jones Industrial Average fell 61.79 points,

or 0.15%, to 41,426.40, the S&P 500 lost 6.00 points, or

0.11%, to 5,632.94, and the Nasdaq Composite lost 25.41

points, or 0.14%, to 17,728.68 at the opening bell.