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The two companies began collaborating in November 2025. As part of the deal, Polymarket provided data for a dedicated prediction market section on Yahoo Finance. The feature provided market-based probabilities of economic, political, and financial developments alongside Yahoo Finance content.
The Yahoo Finance prediction market section was taken out in April. The companies have now confirmed that the larger deal is also off, as reported by Bloomberg.
Yahoo said Polymarket is still an advertising partner and suggested the two could collaborate on other projects in the future. Polymarket has not provided any public explanation for the end of the data partnership.
How to play Cowboy Coins
More than a year after then-Houston Astros pitcher Lance McCullers faced menacing threats from an exasperated bettor, questions remain about whether the proposed bans will serve as a meaningful deterrent to agitated sportsbook customers. An investigation later determined that the bettor resided overseas.
Since the Supreme Court’s PASPA decision in 2018, there has been an uptick on harassment against athletes from bettors. The collection of incidents, in the view of the industry, is typically construed as both troubling and prevalent. Against a backdrop of alarming threats in numerous sports, perhaps the most disconcerting occurred at the hands of Benjamin “Parlay” Patz, a California bettor.
Approximately 15 months after the high court’s ruling, Patz sent a series of explicit messages to four members of MLB’s Tampa Bay Rays, threatening to “sever” their necks open. Accused by federal investigators of targeting more than 300 accounts of pro and college athletes, Patz pleaded guilty in 2021 to transmitting threats in interstate or foreign commerce. Although a judge ordered Patz to undergo mental health treatment and abstain from gambling, he did not sentence the bettor to prison.
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Kalshi, Robinhood, Crypto.com and DraftKings’ own prediction-market operation are all competing for activity around sporting events. Beynon says prediction markets are having a larger effect on valuations than on fundamentals so far.
The existence of a new competitor does not automatically mean sportsbook revenue will collapse. But valuations do not require proof of collapse to fall. A loss of confidence in future growth can be enough.
And now sportsbooks are joining the prediction market race themselves. DraftKings has moved into the market, while Flutter is also developing its presence. That could make prediction markets an additional source of revenue rather than a straightforward threat.
