Futures for U.S. markets were unusually mixed late Wednesday as the Chicago Cubs led the Cleveland Indians in the final game of the 2016 World Series.

Futures for the Nasdaq were off 0.11% while the S&P 500 gained 0.08% and the Dow Jones Industrials gained 0.15% at 9:28 p.m. EDT.

Investors presumably had one eye on the game and another on fluid poll numbers following the FBI's bombshell that it would take a look at previously undiscovered e-mails from Hillary Clinton's private server. Investors fear a drop in equities should Donald Trump win.

The Fed also met Wednesday but, other than leaving interest rates unchanged, gave no concrete indication of whether it's planning a much-prophesied December rate increase.

Election jitters left the Nasdaq off 0.93% Wednesday while the Dow slipped 0.43% and the S&P 0.65%, the S&P's seventh consecutive daily decline.

European shares didn't fare any better Wednesday, with a renewed drop in oil also hitting energy shares. Germay's Dax lost 1.47%, the FTSE in London 1.04% and the Cac in Paris 1.24%.

Meanwhile, Asia opened mixed on the second-to-last trading day of the week with Japan's Nikkei off 1.76%, the Kospi in South Korea up 0.23% and the ASX in Australia 0.09% higher at 9:50 p.m. EDT.

Oil investors halted the commodity's fall as Asia awoke with a future for a barrel of industry standard Brent crude delivered in January gaining 1.11%, to $47.38, at 9:40 p.m. EDT. A future for a barrel of West Texas crude delivered in December gained 1.04%, to $45.81.

In after-hours trade, shares of Facebook (FB) stock tumbled 7.05%, to $118.21, as concerns about 2017 revenue outweighed stronger-than-expected results for the 2016 third quarter.

The company it expects ad load to "play a less significant factor driving revenue growth after mid-2017," CFO Dave Wehner said on the earnings call, warning that the company expects ad revenue growth rates to "come down meaningfully."

Additionally, Facebook anticipates non-GAAP expenses to grow between 40% to 45% for 2016, down from past estimates of between 45% and 50% growth, he said.

Shares of Wynn Resorts (WYNN) fell 6.24%, to $90.50, after the casino operator reported 2016 fiscal third-quarter results that missed analyst estimates.

After today's market close, Las Vegas-based Wynn posted adjusted earnings of 75 cents per share, below Wall Street's expected 78 cents per share.

Revenue was $1.11 billion, which missed analyst projections of $1.12 billion.

In 2015, Wynn reported adjusted earnings of 86 cents per share on revenue of $996.28 million for the third quarter.

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