CME CEO Terry Duffy Calls Certain Sports Prediction Markets Gambling While Exchange Certifies New Tennis Golf and College Football Contracts

Key Takeaways

• CME CEO Terry Duffy labels sports prediction markets gambling: He singled out small parlays and certain sportsbook-style products as susceptible to manipulation on July 22.
• CME certified new event contracts one day prior: Swaps tied to professional tennis champions men’s professional golf finishing positions college football outcomes and national championship winners.
• Prediction markets captured 27% of US World Cup betting volume: This marked a sharp rise from 9% in January according to H2 Gambling Capital data reported by Bloomberg.
• Lawmakers and tribes press for regulatory changes: Twelve Democratic senators urged amendments to protect tribal sovereignty under IGRA while a House panel questioned CFTC oversight of sports event contracts.

CME Group CEO Terry Duffy stated that a lot of prediction markets on sports are gambling. The remarks came during the exchange’s second-quarter earnings call on July 22. One day earlier CME self-certified additional sports event contract swaps covering professional tennis tournaments professional golf tournaments and college football.

Duffy drew a clear line. A lot of these contracts are susceptible to manipulation when they list some of these small parlays and things of that nature, and those are not markets. Those are gambling. This position comes as prediction platforms have taken significant market share from traditional sportsbooks.

Duffy Distinguishes Regulated Event Contracts from Susceptible Gambling Products

Duffy has consistently expressed concerns about sports prediction markets. On the earnings call he said We will try to keep the sports out of it because I have been pretty public about this. He added A lot of these prediction markets on sports are gambling and I think that that is going to find its way to the Supreme Court and that is not something that we want to be a part of participating in right now.

He also highlighted manipulation risks. A lot of these contracts are susceptible to manipulation when they list some of these small parlays and things of that nature and those are not markets. Those are gambling. CME President and CFO Lynne Fitzpatrick reinforced the deliberate narrow product set. Our product set is much more narrow than some of what you might see on some of these other platforms and that is intentional because we want to be very careful with what we are putting out for trade to make sure that it meets all the requirements that we see from our regulator.

These comments as first reported by Gambling Insider illustrate CME’s effort to thread the regulatory needle. The exchange participates in sports event contracts while defining boundaries around what qualifies for CFTC oversight.

CME Expands Sports Event Contracts Under CFTC Framework

Despite the caution CME certified swaps for professional tennis tournament champions men’s professional golf tournament finishing positions college football game outcomes and college football national championship winners. In the CFTC filing the contracts are swaps under the Commodity Exchange Act (CEA) and therefore fall within the CFTC’s exclusive jurisdiction.

The filing explicitly noted that the contracts do not involve gaming as contemplated under Section 5c(c)(5)(C) of the CEA. It cited significant financial economic and commercial consequences of the underlying events. CME further certified that the contracts are not readily subject to manipulation citing league oversight betting-market monitoring and its own surveillance systems.

This expansion aligns with CME’s broader activity in event contracts. Last month the exchange sued the CFTC over its approval of Kalshi’s Bitcoin perpetual futures contracts citing market integrity concerns. Earlier Duffy warned at a Piper Sandler conference that rapid growth of speculative trading including predictions could become a disaster waiting to happen.

Prediction Markets Gain 27 Percent Share of US World Cup Volume With Sharper Pricing

Prediction market platforms captured approximately 27% of US legal sports betting volume during the 2026 World Cup up from 9% in January. According to reporting by The iGaming Europe Kalshi recorded $31 billion in notional trading volume in June alone. Polymarket’s international exchange hit a $10.8 billion monthly high while its US-regulated platform reached $3.5 billion and Rothera took $2 billion in its first full month.

A Citizens JMP Securities study of 104 matches showed clear price advantages. Polymarket averaged 2.70% vig Kalshi 4.71% DraftKings 4.97% FanDuel 5.07% BetMGM 5.64% and Fanatics 6.14%. Polymarket offered the best price in every match studied while Kalshi led on price in 57 of the remaining games versus DraftKings in 38.

Focus Gaming News reported 256 per cent growth in the vertical between January and December 2025 with sports now driving consistent engagement. Kalshi closed a Series F round in May at a $22bn valuation. These figures show prediction markets moving from election-driven spikes to structural sports betting participation.

House Panel and Senators Highlight Tribal and State Regulatory Conflicts

A House Agriculture subcommittee hearing on July 22 pressed the CFTC on whether sports event contracts constitute derivatives or bypass state and tribal gaming rules. Gaming Today reported that Rep. Angie Craig questioned CFTC staffing and authority while witnesses split on the core classification. This suggests sports event contracts bypass state police powers and tribal authority under the Indian Gaming Regulatory Act of 1988.

Twelve Democratic senators led by Senator Martin Heinrich urged amendments to the Digital Asset Market Clarity Act and Digital Commodity Intermediaries Act. Focus Gaming News detailed their letter calling for a savings clause to protect tribal compacts and restrictions on CFTC-registered entities listing sports wager-like contracts. Endorsements came from the National Congress of American Indians the Indian Gaming Association and seventeen New Mexico tribal governments.

Minnesota became the first state to outlaw prediction markets effective August 1 2026. The CFTC has sued multiple states including Arizona Connecticut Illinois New York New Mexico Rhode Island Wisconsin and Kentucky to block restrictions. Courts remain divided with conflicting rulings in Nevada Maryland and Ohio.

What the Coverage Underemphasizes for Operators

The combined reporting from Gambling Insider The iGaming Europe Focus Gaming News and Gaming Today captures the regulatory clash and volume surge effectively. What remains underemphasized is the operational friction this creates for sportsbook operators and suppliers. With prediction platforms accepting customers from age 18 versus 21 at most sportsbooks and operating nationwide in states without legal online betting the customer overlap introduces compliance mapping challenges that no single regulatory filing resolves.

From the supplier side this ambiguity directly impacts integration timelines and risk models. Operators must price in potential Supreme Court review while managing advertising overlap where prediction market operators now account for 45% of online sports betting advertising and Kalshi recorded $111 billion in trading volume through the first half of 2026 with 80% tied to sports. The coverage notes FanDuel Predicts partnering with both CME and Nadex yet stops short of examining how these multi-exchange strategies affect back-office hedging and customer acquisition costs.

The Boundary Test Ahead for Event Contracts

The tension between CME’s narrow compliant product set and broader prediction market growth signals a regulatory boundary test that operators cannot ignore. With Polymarket and Kalshi dominating 94 per cent of branded demand in March 2026 and sports driving sustained volumes the data shows price efficiency that traditional sportsbooks must match or lose share on.

This environment rewards platforms that can navigate both CFTC event contract rules and state-tribal gaming compacts without assuming the Supreme Court will settle every ambiguity. Operators and investors should track how FanDuel Predicts expansion beyond CME’s lineup influences commercial partnerships and whether the narrower integrity-focused contracts CME certifies set the durable standard or simply highlight the gaps other platforms are filling. The next NFL season will clarify if these advantages represent lasting structural change.

In my experience across European regulated markets operators price in this kind of regulatory overhead faster than most forecasts suggest. The real edge lies in systems that surface cross-platform pricing and compliance signals in one view rather than treating the uncertainty as temporary.