SiaPredict DailySeptember 20, 2026
Top line
Kalshi and Coinbase filed dueling CFTC and SEC applications on September 18 to bring perpetual futures to individual US stocks, pushing the crypto-native perpetual format into equities for the first time. The Wall Street Journal reported the same weekend that Polymarket's compliance team flagged a $10 million stolen-card fraud scheme in February that its CEO allegedly told staff to treat as a cost of growth, and Indian Country used a rare CFTC listening session to renew its objection to sports event contracts.
Today's top 4
- 1RegulatoryCatch-up
Kalshi and Coinbase file dueling CFTC and SEC bids for single-stock perpetual futures
Kalshi and Coinbase each filed proposals with the CFTC and SEC on September 18 to list perpetual futures on individual US stocks, a category that CFTC docket entries tie to names including Apple, Tesla, Microsoft, Nvidia and Amazon; Kalshi's contracts carry no fixed expiration and would clear through its own Kalshi Klear clearinghouse, while Kraken's Bitnomial Exchange has filed a similar proposal for ten equities. The dueling filings extend the perpetual-futures format the CFTC already cleared for Kalshi's bitcoin and gold and silver contracts into single stocks for the first time, sharpening the SEC-versus-CFTC jurisdiction question Citadel Securities raised with both agencies on September 10. Neither filing has cleared the CFTC's 45-day review window, which the agency can extend by another 45 days.
Cointelegraph - 2Industry
WSJ: Polymarket flagged $10 million stolen-card fraud scheme, CEO said to keep growing and pay a fine
The Wall Street Journal reported September 20 that Polymarket's compliance team identified in February a scheme linking stolen debit cards to thousands of its US accounts, attempting to move roughly $10 million through wagers and withdrawals before the company reined in the activity by May. The Journal reported that CEO Shayne Coplan told concerned staff to keep growing and pay a fine if regulators ever found out, a remark Polymarket has not confirmed; the company says it has since capped how many debit cards an account can link and hired Riskified as an outside fraud vendor. The episode raises a compliance-culture question about Polymarket's US expansion under its CFTC-registered exchange, QCX LLC, as the company builds out its investigations team under its newly hired first CFO.
crypto.news - 3RegulatoryCatch-up
Indian Gaming Association says CFTC Chairman Selig stayed silent on prediction markets at tribal listening session
Indian Gaming Association Chair David Z. Bean said CFTC Chairman Michael Selig "sat mostly silent" and declined to discuss the agency's proposed prediction-markets rule during a session the CFTC billed as a listening session with 17 tribal gaming organizations, InGame reported September 18. Tribal leaders, moderated by Oklahoma Indian Gaming Association Chair Matt Morgan, reiterated that sports event contracts are illegal and that federal decisions affecting tribal sovereignty require formal government-to-government consultation, with National Congress of American Indians President Mark Macarro saying the session fell short of that standard. The pushback lands the same week Kalshi's partnership with Louisiana's Tunica-Biloxi Tribe went public, underscoring the split between tribes fighting prediction-market operators and those now partnering with them.
InGame - 4IndustryCatch-up
Yahoo Finance's exclusive Polymarket data partnership quietly lapsed in April, Bloomberg reports
Bloomberg reported September 18 that Yahoo Finance's exclusive partnership with Polymarket, which displayed the platform's probability data in a dedicated hub on economic, government and market outcomes, ended when its six-month term expired in April 2026. A Yahoo spokesperson said only that "that specific agreement ended," while Polymarket remains an advertising partner across Yahoo properties and both sides say they are open to a similar arrangement in the future; neither company explained why the data-hub deal was not renewed. It is a minor distribution setback for Polymarket at a time when Kalshi has moved aggressively into money-media partnerships to build retail reach.
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