Major U.S. stock-indexes trade lower on Monday after New York and other states challenged the Trump administration for illegally blocking energy efficiency standards, casting further doubt on the new government's ability to push through planned reforms. The move by a coalition of U.S. states and municipalities comes barely two weeks after President Donald Trump's administration had to pull legislation to overhaul the U.S. healthcare system.

Most of Dow stocks in negative area (25 of 30). Top loser - E. I. du Pont de Nemours and Company (DD, -1.36%). Top gainer - UnitedHealth Group Incorporated (UNH, +0.66%).

All S&P sectors in negative area. Top loser - Basic Materials (-0.8%).

At the moment:

Dow 20524.00 -80.00 -0.39%

S&P 500 2348.75 -10.50 -0.45%

Nasdaq 100 5422.00 -16.50 -0.30%

Oil 50.35 -0.25 -0.49%

Gold 1254.50 +3.30 +0.26%

U.S. 10yr 2.35 -0.05