The USA500 is currently trading above 5,900 levels.
U.S. stocks closed sharply higher in a broad rally on Tuesday after data signalled a solid economy, but investors prepared for volatile trading this week as voting was underway in an extremely tight U.S. presidential election.
On Tuesday the S&P 500 climbed 1.23%, the Nasdaq 100 increased 1.43%, while the Dow Jones was up 1.04%.