SiaPredict DailyAugust 15, 2026
Top line
The CFTC opened an unannounced review of Kalshi's sports "mention markets" for manipulation risk, and MEMX asked the SEC to bring equities-linked event contracts under national exchange rules for the first time. JPMorgan's quiet 2025 exit from Polymarket's banking relationship surfaced this week, a reminder that mainstream banks still treat the sector as a regulatory gray zone even as the CFTC and White House prepare back-to-back sessions with industry CEOs on August 19 and 20.
Today's top 5
- 1Regulatory
CFTC opens review of Kalshi's sports "mention markets" over manipulation risk
The CFTC has opened an unannounced review of prediction-market "mention markets," contracts settling on whether a public figure says a specific word, after reports that Donald Trump's teleprompter operator profited from Kalshi mention trades tied to presidential remarks. Kalshi has pulled sports mention contracts "until further notice" while keeping the category live for politics, earnings calls, and televised newscasts; no formal complaint or rule proposal has been filed. Compliance teams should treat mention-style contracts as a live manipulation-risk category regardless of subject matter, not just the sports subset Kalshi paused.
NPR - 2RegulatoryCatch-up
MEMX asks SEC to allow equities-based event contracts on a national exchange
MEMX filed a proposed rule change with the SEC on August 12 to list Equities Based Exchange Prediction Contracts, yes/no contracts on objective financial metrics such as earnings and revenue for US-listed companies, priced between $0.01 and $0.99. MEMX's CEO and Interactive Brokers' CEO, whose firm operates ForecastEx, both publicly backed the filing, which targets an early-2027 launch pending SEC approval. It is the first attempt to bring event-contract-style products under SEC-registered, centrally cleared exchange rules rather than the CFTC designated-contract-market framework Kalshi, Polymarket, and CME currently use.
FinancialContent (BusinessWire) - 3Regulatory
CFTC sets prediction-markets agenda for August 20 Innovation Advisory Committee, White House to host industry CEOs a day earlier
CFTC Chairman Michael Selig announced the agenda for the agency's inaugural Innovation Advisory Committee meeting on August 20, which includes a dedicated session on prediction markets alongside crypto assets and artificial intelligence, with public comments open through August 27. Reports this week said the White House will convene CEOs from Kalshi, Polymarket, Coinbase, Robinhood, CME Group, Nasdaq, and ICE on August 19 as a lead-in, with Selig and Digital Asset Advisory Committee director Patrick Witt also expected to attend. Neither session is a rulemaking, but the back-to-back timing signals the administration is treating prediction markets as a distinct policy track rather than folding it into general crypto oversight.
CFTC - 4Industry
JPMorgan quietly ended its banking relationship with Polymarket over regulatory concerns
The Financial Times reported that JPMorgan notified Polymarket in October 2025 that it would terminate banking services, citing regulatory concerns tied to a CFTC enforcement action that at the time barred Polymarket from serving US customers; Polymarket has since moved to an undisclosed lender. JPMorgan has kept some engagement open even so, inviting CEO Shayne Coplan to a private-client conference in February and reportedly positioning itself for a potential Polymarket IPO underwriting role. It illustrates how large banks are drawing a line between ongoing banking exposure and one-off deal fees when a client operates in an unsettled regulatory category.
CoinDesk - 5IndustryCatch-up
Fliff and Onyx affiliates file for NFA futures-commission-merchant registration
Fliff FCM LLC and Onyx Markets LLC, affiliates of sweepstakes-sportsbook operators Fliff and Onyx Odds, each filed on August 12 for NFA Futures Commission Merchant registration, swap-firm approval, and NFA membership. Both applications are pending review and follow a similar pivot already made by DraftKings and Kalshi's Kinetic Markets affiliate. It is a further sign that sweepstakes-model operators are seeking a federally regulated derivatives path as state restrictions narrow their existing sweepstakes footprint.
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