CFTC Presumes Mention Markets Open to Manipulation, Exchanges Must Rebut With Four Factors

CFTC Advisory Sets a Manipulation Presumption

Staff at the Commodity Futures Trading Commission (CFTC) told registered exchanges on September 22 that mention markets should be treated as presumptively readily susceptible to manipulation. The advisory came from the agency's Division of Market Oversight (DMO) and was signed by Acting Director Duncan Hennes. It went to designated contract markets, the venues licensed to list futures contracts under the Commodity Exchange Act, whose Core Principle 3 bars an exchange from listing contracts that can be readily manipulated. A mention market is a yes-or-no contract on whether a named person says a particular word during a speech, an earnings call or a social media post. The CFTC's label also covers contracts on event attendance and on interactions such as handshakes, which widens the set of contracts captured by the presumption. That settlement structure separates the category from most prediction-market event contracts, which resolve on outcomes no single person controls, such as election results or the release of economic data. A mention contract settles on one person's conduct, so that person, or someone close to them, may sway the result or learn it early. In the letter, staff said they may view mention markets as presumptively readily susceptible to manipulation and accordingly expect a heightened showing in support of any submission seeking to list such contracts. Exchanges must address four factors in their product filings, and staff said the list is not exhaustive. Two of the factors concern the speaker's legal or professional duties that deter tampering, and exposure to outside pressure. The advisory creates no new obligations, does not necessarily speak for the full commission, and no ban followed. A venue that rebuts the presumption can still list the contracts. The full text is in the advisory letter posted by the agency.

A $172,539.02 Enforcement Precedent

The risk the advisory describes has already materialized once. On August 28, the CFTC ordered Gabriel Perez, a former White House teleprompter operator, to pay $172,539.02 after he traded presidential mention contracts on Kalshi between December 2025 and February 2026 while relying on advance access to speeches. The order states that the total includes forfeited profits, and Perez is barred from trading for three years. The case fits the mechanism the letter flags: a participant with early knowledge of what a speaker would say took a position on the outcome before the public could. The advisory's own example runs along the same line. It cites a livestreamed podcast host and a catchphrase, where a trader could tilt the result by paying for a shout-out during the show. Venue geography adds a second layer to the problem. Polymarket lists mention markets only on its international exchange, which the CFTC does not regulate. Kalshi, a CFTC-registered venue, faces a separate legal question in the United States courts: a judge who blocked Minnesota's prediction market ban said Kalshi's World Cup announcer mention markets likely are not swaps, the category tied to the CFTC's exclusive jurisdiction. If a court keeps those contracts outside the swaps category, the advisory's presumption applies to a narrower slice of the market than staff may intend. Between the enforcement record, which covers one individual case, and the letter's four-factor test, exchanges now carry the burden of showing that a mention contract cannot be steered by the speaker or by anyone paid to influence the speaker. That showing gets harder for contracts tied to unscripted moments, where the outcome rests in the speaker's hands by design.

What the Presumption Changes

Read together, the two actions describe a regulator choosing to price risk rather than prohibit it. The September 22 letter keeps listing possible but shifts the cost onto venues, and the August 28 order shows the agency will act when the risk lands. COINOTAG's reading is that conduct-settled contracts now sit in a different compliance tier than data-settled event markets, and the four-factor test will decide which specific contracts clear it. The unresolved question, which the agency's own materials raise, is whether staff guidance can govern a category that can move to venues outside CFTC oversight. Volume that migrates offshore would sit beyond the presumption entirely.