Wall Street's biggest investors have their own expensive election polls that the public rarely sees
Traders work on the floor of the New York Stock Exchange (NYSE) shortly after the opening bell in New York, U.S., October 17, 2016.  REUTERS/Lucas Jackson
Traders work on the floor of the New York Stock Exchange (NYSE) shortly after the opening bell in New York, U.S., October 17, 2016. REUTERS/Lucas Jackson

(Traders on the floor of the NYSE.Thomson Reuters)

The US presidential election is turning into a nail-biter as public polls show Hillary Clinton's lead in the race against Donald Trump suddenly eroding.

But suppose you had a way of knowing that the election outcome isn't as uncertain as it might seem.

Some of the world's biggest investors do have a way.

Unwilling to rely on public polls conducted mostly by the media and universities, these hedge funds and other large investors are paying for their own poll data and analysis. And they're paying a lot more than any news outlet or school would pay for more precise data that isn't always publicly available.

The point is to get a higher-quality, more accurate read on possible outcomes than a cash-strapped paper might be able to, or to ask specific questions that public pollsters may not be thinking of, says Scott Tranter, cofounder of Øptimus, a DC-based data firm.

These questions include specific ones ("Which members of Congress need to win or lose for Obamacare to be repealed?") and broader predictions ("Who will be elected president?"). That's according to Tranter, who recently spoke with Business Insider.

For investors, there's money to be made even just by knowing that Clinton's lead isn't as fragile as the latest polls indicate, which could implicate markets. Tranter's data shows Clinton is still favored to win, but her chances have been tightening over the past week, and he said aggregated public polling is now catching up.

"Folks like us sort out the noise and bring timely clarity tuned to the investors' investment position through sorting out 'bad' polls and bringing private, accurate data," Tranter wrote in an email to us.

A sudden jump in uncertainty over the outcome has led stocks to have one of their worst runs since the financial crisis. The Mexican peso, meanwhile, has bounced around with every new bit of information that might affect the outcome, and derivatives-markets predictions of future swings in the stock market are rising. A Trump win is viewed as a negative for Mexico, which drives down the peso's price, while a Trump loss would have the opposite effect.

At the moment, financial markets are pricing in more volatility than in previous elections, according to Credit Suisse. So an investor with greater confidence in a Clinton victory — which would be a less uncertain outcome in terms of policy and leadership — can profit from that information.

"Polling methods have become a lot more sophisticated since 1948, and early voting data in key swing states are consistent with a Clinton win," Credit Suisse's analysts wrote in their research note Friday. "Yet with Brexit still fresh on most investors' minds, it’s not surprising volatility is being bid up going into the election."