CFTC Warns Prediction Market “Mention” Contracts Carry Manipulation Risk

The US Commodity Futures Trading Commission has warned that prediction market contracts tied to what a specific person says or does carry heightened manipulation risks, signaling closer scrutiny for exchanges as the prediction market industry expands.

Regulator Flags Limited Circumstances For Mention Markets

The CFTC’s Division of Market Oversight said so-called “mention markets,” contracts based on whether someone will say certain words, attend an event, or interact with another person, can only be listed under narrow conditions consistent with existing commodities law.

The agency explained that these contracts are risky because their outcomes depend on individual behavior that may not be independently verifiable or naturally occurring. Exchanges were advised to weigh factors including oversight measures, verifiability of the triggering behavior, and outside pressures that could influence the person’s actions.

Warning Follows Recent Manipulation Case

The advisory comes weeks after a former White House teleprompter operator was ordered to return more than $107,000 in profits and pay a civil penalty for trading contracts tied to President Trump’s speeches. The CFTC had already been reviewing mention markets since August, with one platform previously pulling similar sports-related contracts during the inquiry.

Kalshi Faces Separate Trading Scrutiny

Separately, unusual trading activity on Kalshi has drawn attention after nearly one million trades worth over $5 billion were recorded in a single Ether linked market, with a notable share occurring in nearly identical trade sizes. Kalshi has denied that the activity amounted to wash trading, though the pattern has caught the interest of federal regulators.