CFTC Warns of Manipulation Risk in ‘Mention’ Prediction Markets

The U.S. Commodity Futures Trading Commission’s Division of Market Oversight on Tuesday issued an advisory to some regulated exchanges warning that “mention markets” present a heightened risk of manipulation. The advisory says such contracts can be listed only in limited circumstances under the Commodity Exchange Act.

The advisory defines mention markets as event contracts that settle on whether an individual will say specified words, attend or appear at an event, or interact with another person. The agency described the risk as stemming from settlement that depends on a person’s discrete conduct, which may not be independently generated or externally verifiable.

Exchanges are asked to weigh four specific factors before listing mention markets: whether surveillance and oversight measures can detect manipulation; whether the words or actions used for settlement are independently verifiable; whether external pressures could influence the subject’s conduct; and whether outside obligations of the subject could affect outcomes. The advisory stresses designated contract markets must list only contracts that are not readily susceptible to manipulation.

The guidance follows enforcement matters involving traders who used privileged information in prediction markets. In a recent case, a former White House teleprompter operator was ordered to return $107,539 in trading profits and pay a $65,000 civil penalty for trading contracts tied to the timing or content of presidential speeches. The CFTC pointed to those cases when describing the heightened risks tied to contracts that depend on an individual’s actions or statements.

CFTC Chair Mike Selig posted on X that “regulatory clarity drives sound markets,” noting the guidance highlights risks and the responsibilities of exchanges that list such products.

The advisory urges exchanges to ensure settlement criteria are objective and verifiable, to adopt monitoring systems capable of spotting manipulative behavior tied to real-world actions, and to consider the likelihood that outside parties could influence the individual whose conduct determines contract outcomes.

The CFTC did not ban all mention markets. The advisory makes clear that only in limited, well-controlled circumstances will such contracts meet the exchange listing standards set by the Commodity Exchange Act, and it expects exchanges that list or consider these products to reassess product design and oversight practices in light of the guidance.