CFTC's August Guidance Wave Tightens Event-Contract Scrutiny

On August 7, 2026, the CFTC's Division of Market Oversight and Market Participants Division issued a letter (PR 9278-26) warning registered entities against displaying event-contract prices in American, or moneyline, odds format. Five days later, on August 12, the Division of Market Oversight issued a separate advisory (PR 9282-26, Staff Letter No. 26-23) flagging widespread deficiencies in incentive-program rule filings for event contracts submitted under CFTC Regulations 40.5 and 40.6.

Neither action names a specific exchange or opens an enforcement proceeding. Both are staff guidance aimed at the same population of firms, DCMs, FCMs, and introducing brokers listing or soliciting event contracts, and both single out practices specific to that product line rather than the DCM population generally.

American odds, the plus/minus format familiar from sportsbooks (for example, -150 or +130), convert an implied probability into a betting-style number rather than showing it directly. The CFTC's letter found that displaying event-contract prices this way 'is likely to mislead market participants' about what they are actually trading, and said it may also obscure signals about market depth and pricing impact that a nominal or percentage-based display would show plainly.

The letter cited research linking moneyline-style formatting to greater risk-taking behavior, and framed the concern as a disclosure problem: a CFTC-regulated event contract is not a sportsbook wager, and its price display should not borrow the visual language of one. Recipients were asked to confirm receipt of the letter by August 31, 2026.

Regulation 40.6 lets a registered entity self-certify a new rule or rule amendment and put it into effect without advance CFTC approval, so long as it submits the required certification and supporting documentation and the Commission does not object within the review period. Regulation 40.5 covers the alternative path of seeking advance Commission approval instead.

Staff Letter 26-23 said an increasing number of incentive-program filings, covering market-maker, liquidity, and trading-incentive programs tied to event contracts, arrived with procedural or substantive gaps that made it difficult for staff to confirm the exchange had given proper notice of the program's terms and assessed its own compliance with the core principles self-certification is supposed to guarantee. The advisory sets out staff's expectations for both initial filings and later amendments, but names no specific exchange and sets no compliance deadline.

Both letters came from the Division of Market Oversight within the same week the CFTC settled its insider-trading case against former Rep. George Santos over a Kalshi event contract. Taken together, they read less like two unrelated administrative reminders and more like a division turning its supervisory attention specifically toward event contracts, independent of the separate swap-definition fight over state preemption working through federal courts.

That distinction matters for compliance planning. Courts are deciding whether sports-event contracts qualify as CEA swaps at all, a question that could take years and multiple circuit rulings to resolve, but the CFTC's own staff is not waiting on that outcome to tighten how the products it already regulates are priced, marketed, and self-certified.

Exchanges and intermediaries displaying event-contract pricing in moneyline format should plan to move to nominal or percentage-based displays, and should be prepared to document that shift if asked. Anyone with a pending or planned Regulation 40.5 or 40.6 filing for an incentive, rebate, or liquidity program tied to event contracts should review it against Staff Letter 26-23's stated expectations before submission, rather than after a staff inquiry.

Neither letter carries a monetary penalty on its own, but both put affected firms on notice, which carries its own legal weight if the agency later brings an enforcement action over the same conduct. Firms that treat these letters as guidance now, rather than waiting for a follow-up inquiry, are better positioned if the CFTC's event-contract-specific scrutiny keeps intensifying.