Yahoo Finance ended its dedicated integration of Polymarket data in April, six months after the arrangement began, the company confirmed. Yahoo Finance said Polymarket remains an advertising partner but did not explain why the data integration ended.
The change ends a dedicated data integration while leaving Polymarket’s advertising relationship with Yahoo Finance in place.
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SCCG Management said its portfolio company Tater supplied data for a CNBC segment about US midterm election prediction markets. The chart showed a 74% probability for Democratic control of the Senate, compared with 87% implied by individual contracts, according to the company’s account.
Prediction-market platforms were trading contracts on control of the US House and Senate during the 3 November midterm elections, according to the report. It cited Kalshi and Polymarket prices at 10:32 a.m. ET and said no results had been reported by then. The report also described third-quarter figures from Robinhood, including $173 million in event-contract revenue and 16.4 billion contracts traded.
Polymarket said a third-party provider was compromised in a security incident on 29 October, and that affected users would be reimbursed. The platform briefly suspended event-contract trading while addressing the incident, then resumed it; it did not confirm the total funds taken or number of affected accounts.
DraftKings launched its DraftKings Predictions app in December 2025 and introduced its DKeX contracts market on 26 June 2026, according to the report. The company developed DKeX using technology and authorisations obtained through its acquisition of Railbird Technologies; the report also says a US professional basketball league expanded its agreement with DraftKings on 26 October to cover prediction markets.
The NBA announced agreements with Kalshi and Polymarket to establish safeguards for NBA-related prediction markets in the United States. The league also signed a memorandum of understanding with the CFTC and expanded its DraftKings agreement to cover prediction markets and nationwide promotion; the arrangements exclude the WNBA.