Polymarket buckles down on insider trading after scrutiny over suspiciously timed bets
CBSN
Polymarket is moving to quash insider trading as prediction markets face scrutiny over whether some users draw on classified or other closely held information to gain an edge in betting on events. Edited by Alain Sherter In:
Polymarket is moving to quash insider trading as prediction markets face scrutiny over whether some users draw on classified or other closely held information to gain an edge in betting on events.
The New York-based company said Monday that it has updated its rules to prohibit trades based on "stolen confidential information" or illegal tips. Polymarket also clarified that traders cannot place a bet if they "hold a position of authority or influence" that may influence the outcome of a certain event.
For example, CEOs of a public company would not be allowed to trade on a market focused on how many times they will use a certain word during an earnings call with Wall Street analysts. Polymarket's rules, which are now posted on a "market integrity" page on its website, apply to the company's U.S. exchange and offshore operations.
Companies like Polymarket and rival Kalshi let users wager money on the outcome of elections, sports contests and many other events. Yet while their popularity has exploded, the companies are attracting attention from lawmakers and other critics who say they violate anti-gambling regulations and who raise concerns about the integrity of trading activity on the platforms.
"There had been a lot of concern around trading on the U.S. market from outside the U.S. borders and vice versa," said Stephen Piepgrass, a partner at Troutman Pepper Locke who leads the law firm's regulatory practice. "So I do think part of this is about trying to create an approach that applies everywhere."
Kyiv — The White House wants Congress to provide at least $200 billion more in funding for the war in Iran, and President Trump says that's partly due to aid for Ukraine having depleted U.S. weapons stockpiles as it fends off Russia's ongoing full-scale invasion. In:
A statue of Christopher Columbus has been placed on the grounds of the Eisenhower Executive Office Building adjacent to the White House — the latest effort by the Trump administration to honor the explorer whose legacy has drawn increasing criticism in recent years. In:
OnlyFans owner Leonid Radvinsky, a reclusive billionaire who transformed a little-known adult-content site into a cultural touchstone, has died of cancer, the company said Monday. Radvinsky was 43. Edited by Alain Sherter
Washington — President Trump said early Monday that he is postponing airstrikes on Iran's power plants after "very good and productive conversations" over the last two days about reopening the Strait of Hormuz. However, Iran's foreign ministry denied any such talks. Claire Day contributed to this report. In:
Immigration and Customs Enforcement agents began deploying to some U.S. airports on Monday as a partial government shutdown causes shortages of Transportation Security Administration officers who have resigned or called out of work. Skyler Henry contributed to this report. In:
London — Police in London are investigating a suspected antisemitic hate crime after vehicles belonging to a Jewish ambulance service were set on fire early Monday morning. In:
Washington — The Supreme Court is considering Monday a major elections dispute involving whether federal law bars states from counting mail ballots that are postmarked by, but received after Election Day.
Stocks look set to surge in early trading on Monday after President Trump postponed an ultimatum for Iran to reopen the Strait of Hormuz, saying that the U.S. is engaged in "good and productive" negotiations with Tehran. Edited by Alain Sherter In:
New York's La Guardia Airport was closed late Sunday night after an arriving Air Canada Express plane and ground vehicle collided, according to flight tracking service FlightRadar24.
Savannah Guthrie is renewing pleas to neighbors, friends and residents of Tucson, Arizona, to jog their memories in the hopes of sparking new leads in the disappearance of her mother, Nancy. In:
Officials at Immigration and Customs Enforcement have been scrambling to carry out a weekend directive from President Trump to have immigration agents provide security at airports amid the partial government shutdown, multiple sources familiar with the internal deliberations told CBS News. In:
Fentanyl was found inside Barbie doll packages being sold at a discount store in Missouri, police said on Saturday. In:
New Jersey Senator Cory Booker hasn't been the mayor of Newark since 2013. But when he walks around his neighborhood, you'd never know it. One passer-by yelled out, "The best mayor ever!" In: