Major U.S. stock-indexes fell on Wednesday, with the S&P 500 headed for seventh day of losses as a tightening race for the White House rattled investors and a fall in oil also weighed on sentiment. Investors are rethinking their long-held bets of a November 8 victory for Democrat Hillary Clinton amid signs that her Republican rival Donald Trump could be closing the gap. While Clinton held a percentage point lead over Trump, according to a Reuters/Ipsos opinion poll released on Monday, some other polls showed her Republican rival ahead by 1-2 percentage points.

Most of Dow stocks in negative area (19 of 30). Top gainer - The Home Depot, Inc. (HD, +0.73%). Top loser - Pfizer Inc. (PFE, -1.38%).

All S&P sectors also in negative area. Top loser - Utilities (-1.3%).

At the moment:

Dow 17927.00 -12.00 -0.07%

S&P 500 2098.50 -5.25 -0.25%

Nasdaq 100 4740.50 -16.75 -0.35%

Oil 45.25 -1.42 -3.04%

Gold 1307.70 +19.70 +1.53%

U.S. 10yr 1.80 -0.02