CFTC Event-Contract Proposals Put Manipulation Risk at Center of Prediction-Market Rulemaking

Meta description: CFTC event-contract proposals target gaming definitions, reporting rules, and manipulation risks as prediction markets expand.

Tags: CFTC, CME Group, Kalshi, Polymarket, George Santos, event contracts

Market platform: none-if-cross-platform

Category: Regulation

The CFTC’s event-contract rulemaking is now centered on a practical question: whether exchanges can police manipulation as listings expand from election markets into sports, politics, entertainment, and individual-actor outcomes. Two CFTC proposals, a March staff advisory, and a July enforcement order against George Santos show how the agency is trying to draw that boundary before proposed rules become final.

What is the CFTC proposing for event contracts?

The agency has put forward two major 2026 proposals affecting prediction markets. On June 10, 2026, the CFTC announced proposed amendments to Rule 40.11, the rule governing event contracts that may be prohibited because they involve gaming, terrorism, assassination, war, unlawful activity, or activity contrary to the public interest. The proposal would define “gaming” and create a clearer test for deciding when a contract is barred from listing.

A separate June 25, 2026, CFTC proposal would update reporting rules for fully collateralized event contracts. That proposal is narrower than the Rule 40.11 package, but it matters because surveillance depends on the quality and timeliness of exchange data. The CFTC framed the reporting proposal as a way to reduce unnecessary burden while preserving the agency’s ability to monitor trading activity.

The two proposals remain proposals, not final rules. The comment period for the June 10 Rule 40.11 proposal closed on July 27, 2026, according to the Federal Register notice for the rulemaking. Until a final rule is adopted, designated contract markets that list event contracts remain subject to the existing self-certification process and the Commodity Exchange Act’s anti-manipulation provisions.

Why is manipulation risk getting more attention?

Manipulation risk has become harder to treat as a theoretical issue because event contracts often settle on outcomes influenced by a small group of people, or in some cases by one person. CME Group CEO Terry Duffy has publicly raised concerns that event-contract self-certification can allow high-risk products to reach the market before regulators have fully reviewed their susceptibility to manipulation.

The concern is not limited to traditional market manipulation, such as spoofing or false trading signals. Event contracts can create incentives around real-world conduct: whether a public figure attends an event, whether an athlete plays, whether an official makes a call, or whether a participant takes an action that directly affects settlement.

The CFTC’s March 2026 staff advisory, CFTC Letter No. 26-08, identified several categories that warrant closer review, including contracts tied to individual player injuries, officiating decisions, and discrete individual actions. Those are different from broad outcome markets, such as who wins an election or which team wins a championship, because the settlement event may be easier for a small group of insiders or participants to influence.

What did the George Santos case show?

The clearest enforcement example came on July 31, 2026, when the CFTC announced a consent order in In re Santos, CFTC Docket No. 26-05. The agency said former U.S. Representative George Santos traded event contracts tied to whether he would attend the 2026 State of the Union address, then made social media statements about his plans while holding positions in those markets.

According to the CFTC order, Santos built positions between February 12 and February 25, 2026. The agency said his public statements contained material misrepresentations about his attendance plans and were made to move prices in his favor before he exited the positions. The order required $17,500 in disgorgement, a $17,500 civil monetary penalty, and a three-year trading ban.

The CFTC brought the case under Commodity Exchange Act Section 6(c)(1) and CFTC Regulation 180.1(a)(1) and (3), the same anti-manipulation framework the agency uses across derivatives markets. Santos’s counsel described the settlement as “a prompt, practical resolution rather than protracted, costly litigation.”

The case matters because it connects the event-contract debate to an actual enforcement record. It also shows the difference between markets that primarily aggregate outside information and markets where a trader’s own conduct can affect the event. That distinction is now central to how the CFTC is evaluating proposed event-contract boundaries.

How would the June 10 proposal screen event contracts?

The June 10 Rule 40.11 proposal sets out a structured review for whether an event contract falls into a prohibited category. First, the CFTC would ask whether the contract involves an excluded commodity. Second, it would ask whether the contract involves an enumerated prohibited activity, such as gaming, assassination, war, terrorism, or unlawful activity. Third, for contracts not categorically barred, the agency would evaluate public-interest factors.

The proposal’s treatment of “gaming” is especially important for sports and politics markets. The CFTC proposed to define gaming in a way that would capture some event contracts tied to contests or wagers, while distinguishing other public-event contracts that would proceed to further review rather than automatic prohibition. The agency’s examples separate broad outcome contracts from contracts tied to individual acts or conduct that create clearer manipulation risks.

Sports contracts illustrate the line the agency is trying to draw. Contracts tied to aggregate results, such as final scores, point differentials, or season statistics based on official league data, can be easier to supervise than contracts tied to player injuries, officiating calls, or a single participant’s conduct. The latter categories raise sharper questions about insider information, inducement, and market integrity.

How large has the market become?

The scale of event-contract listings is the practical pressure behind the rulemaking. CFTC materials cited more than $25 billion in event-contract trading volume in 2025. Katten Muchin Rosenman, in a June 2026 analysis, said daily contract listings rose from roughly 1,600 in April 2025 to about 162,000 by April 2026.

Those figures explain why the debate has moved beyond whether prediction markets should exist. The near-term regulatory question is whether the CFTC, exchanges, and market surveillance systems can sort low-risk public-event contracts from products that create incentives for manipulation or misuse of nonpublic information.

Under the existing framework, designated contract markets can self-certify new contracts, subject to CFTC review and enforcement authority. That structure allows faster listing, but it places substantial responsibility on exchanges to identify problematic contracts, monitor trading, and refer misconduct to the agency when necessary.

What remains unresolved?

The first unresolved issue is timing. The June 10 Rule 40.11 proposal remains under agency review after the July 27 comment deadline. The CFTC has not adopted a final rule, so exchanges are still operating under the current event-contract framework while the agency considers comments.

The second issue is how the CFTC will distinguish prohibited gaming contracts from public-event contracts that receive a public-interest review. Political elections and awards markets occupy a difficult middle ground because they are not identical to sports wagering, but they can still involve reputational stakes, campaign conduct, and information advantages.

The third issue is insider trading. The March 2026 advance notice of proposed rulemaking, published in the Federal Register as 2026-05105, asked how inside information should be regulated in event-contract markets, including markets where outcomes can be influenced by a small number of people. The Santos order gave the agency an enforcement example, but the CFTC has not adopted event-contract-specific insider-trading rules comparable to the equity-market regime.

The next milestone is the CFTC’s review of comments on the June 10 Rule 40.11 proposal and the June 25 reporting proposal. Until final rules are adopted, the agency’s main tools remain the self-certification review process, staff guidance, exchange surveillance, and enforcement under the Commodity Exchange Act’s anti-manipulation provisions.