U.S. futures traded near the flatline on Tuesday after the first debate between U.S. presidential candidates, Hillary Clinton and Donald Trump.
Clinton appeared to have gained an edge on her Republican opponent in the debate, which saw Dow futures briefly add more than 100 points before paring gains.
"The press verdict on the first U.S. presidential debate is that Hillary Clinton 'won', but Donald Trump didn't lose badly enough to really reduce the uncertainty," Kit Juckes, a strategist at Societe Generale, said in a note on Tuesday.
Dow futures rose more than 100 points overnight following the debate before dipping into negative territory Tuesday morning. S&P and Nasdaq futures soon followed the Dow lower.
Economic data due from the U.S. on Tuesday include the Case-Shiller home price index and the Conference Board's consumer confidence report for September.
Crude oil futures declined on Tuesday after rallying more than 3 percent on Monday. The volatility comes as major oil-producing countries meet in Algiers amid rumors of a long-awaited OPEC deal to freeze crude production.
With that in mind, energy stocks will be worth watching on Tuesday.