US stocks opened mostly lower Monday on the eve of the presidential vote, with President Barack Obama and Republican challenger Mitt Romney locked neck-and-neck in the race for the White House.
"The US equity markets are moving to the downside... with tomorrow's US presidential election draining conviction on the Street, along with festering Greek bailout uncertainty," Charles Schwab & Co. analysts said.
Five minutes into trade, the Dow Jones Industrial Average was down 20.47 points (0.16 percent) at 13,072.69.
The broad-based S&P 500 fell 3.38 (0.24 percent) to 1,410.82, while the Nasdaq Composite gained 3.42 (0.11 percent) at 2,985.55.
On Friday, an encouraging US October jobs report provided only a fleeting boost to stocks, with markets ending down about one percent.