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Yahoo Finance has ended its dedicated prediction market integration with Polymarket, cutting short a high-profile partnership less than a year after launch.

The investing and news site announced last week that it halted an arrangement in which it used Polymarket prediction market data for a dedicated hub on the website.

That relationship ended in April, just six months after it started. Yahoo Finance confirmed the end of that agreement to Bloomberg but noted that Polymarket remains an advertising partner.

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Fred Done, the 83-year-old founder of Betfred and Britain’s highest-paying taxpayer this year, has issued a stark warning about the impact of further tax increases on the gambling industry. 

In an interview with the Financial Times over the weekend, Done cautioned that additional tax hikes could result in widespread betting shop closures, harm related sectors such as horse racing and accelerate the decline of the high street.

Betfred currently operates approximately 1,094 retail shops across the UK. Done highlighted the concrete risks of Machine Gaming Duty – taxes on gambling machines – doubling from 20% to 40%, a move reportedly under consideration by Chancellor John Healey ahead of the Autumn Budget.

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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. 

The news comes as prediction market operators continue to form alliances with major media outlets. These deals allow news outlets to embed event contract data into their reporting and offer prediction platforms more visibility to investors and news audiences.