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The company must also provide data to the firms making markets on those events.
“If we just sold the data to Kalshi in order to list the markets but no one was coming in and placing liquidity, there’s no point in them listing the markets,” Monk said. “We also need to supply the data to the market makers to inform their models.”
Catalist initially received a list of fewer than 10 potential market makers from Kalshi. It has since completed agreements with close to 20 and is engaging with approximately another 20.
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“A jackpot of this magnitude is an extraordinary event, and we’re excited to see the second-largest lottery prize ever won in Illinois officially claimed,” said Illinois Lottery Director Harold Mays. “It’s exciting to see such a significant Powerball win come to an Illinois player, and we’re pleased to celebrate this milestone with them.”
For selling the winning ticket, the Hy-Vee Fast & Fresh convenience store, located at 310 N. 36th St. in Quincy, collected a $500,000 retailer bonus.
Powerball will next be drawn this Saturday (Sept. 19) with an estimated jackpot of $298 million up for grabs. The cash option is at $126.6 million.
About Wazobet
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.
