March 26 (Reuters) - Wall Street's main indexes were

mixed on Wednesday, with investors exercising caution as they

awaited economic data and more clarity on the Trump

administration's fresh tariffs that are expected to take effect

next week.

At 09:30 a.m. ET, the Dow Jones Industrial Average

rose 79.87 points, or 0.19%, to 42,667.37, the S&P 500

lost 2.28 points, or 0.04%, to 5,774.37 and the Nasdaq

Composite lost 55.28 points, or 0.30%, to 18,216.58.