Public Opinion Polls, Media & Market Manipulation

“Behind the scenes, a small group of people had a secret—and billions of dollars were at stake. Hedge funds aiming to win big from trades that day had hired YouGov and at least five other polling companies, including Farage’s favorite pollster. Their services, on the day and in the days leading up to the vote, varied, but pollsters sold hedge funds critical, advance information, including data that would have been illegal for them to give the public. Some hedge funds gained confidence, through private exit polls, that most Britons had voted to leave the EU, or that the vote was far closer than the public believed—knowledge pollsters provided while voting was still underway and hours ahead of official tallies. These hedge funds were in the perfect position to earn fortunes by short selling the British pound. Others learned the likely outcome of public, potentially market-moving polls before they were published, offering surefire trades.”

—Cam Simpson, et al. “The Brexit Short: How Hedge Funds Used Private Polls to Make Millions.” Bloomberg. June 24, 2018.

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