Oct 19 - Wall Street's main indexes slipped on Monday as losses in tech-related heavyweights Facebook and Amazon eclipsed optimism on a coronavirus relief deal before the Nov. 3 presidential election.

US stocks had opened higher after House Speaker Nancy Pelosi said she was optimistic legislation could be pushed through before the election, but acknowledged an agreement would have to come by Tuesday for that to happen.

Last week the White House proposed a $1.8 trillion stimulus package to help Americans struggling with the economic ravages of the coronavirus pandemic, but Pelosi said the offer fell short in a range of areas and stuck to her demand for $2.2 trillion in aid.

"I do believe that both sides, even though two weeks before election, can see the way to getting some money back into unemployment programs," said Kim Forrest, Chief Investment Officer, Bokeh Capital Partners, Pittsburgh.

Wall Street's fear gauge rose for a sixth straight session as election campaigns kicked into high gear, with early voting starting in Florida, a battleground state that could decide the presidential election.

President Donald Trump and his Democratic challenger Joe Biden will debate for a final time on Thursday.

Amazon.com, Facebook Inc and Microsoft Corp fell between 0.8% and 1%. They were among the biggest drags on the S&P 500.

All major S&P sectors were trading lower, with the communication services index down about 1%.

"It's just the general volatility here. I wouldn't be surprised to see this bouncing around all day," said Tony Bedikian, head of global markets at Citizens Bank.

At 12:40 pm ET, the Dow Jones Industrial Average was down 100.05 points, or 0.35%, at 28,506.26, the S&P 500 was down 15.01 points, or 0.43%, at 3,468.80. The Nasdaq Composite was down 36.10 points, or 0.31%, at 11,635.45.

Video-streaming service Netflix Inc was a bright spot, rising 1.2% ahead of its results on Tuesday.

After the financial sector set a mixed tone to the start of the third-quarter earnings season, investors will look to results from about 91 S&P 500 companies this week including International Business Machines Corp, whose quarterly report is expected later in the day.

The S&P index recorded 25 new 52-week highs and one new low, while the Nasdaq recorded 94 new highs and 22 new lows.

Reuters