A pedestrian wearing a face mask looks at a smartphone while passing in front of the New York Stock Exchange (NYSE) in New York, on Monday, July 20, 2020.
Michael Nagle | Bloomberg | Getty Images
U.S. stock futures opened flat on Tuesday night after the release of coronavirus treatment data from Regeneron Pharmaceuticals while traders awaited the first presidential debate.
Dow Jones Industrial Average futures were down just 39 points, or 0.1%. S&P 500 and Nasdaq 100 futures also slid 0.1%.
After the closing bell, Regeneron said its REGN-COV2 drug reduced viral levels and improved symptoms in non-hospitalized coronavirus