Kalshi has removed all sports mention markets from its platform after the Commodity Futures Trading Commission opened a review of the contracts, which settle on whether a given word is spoken on air. Bettors could back or fade words such as 'MVP', 'ankle' or 'redshirt' during a broadcast. There is no timeline for a return.
Sports generates more than 80% of weekly trading volume on Kalshi, so pulling the sports mention contracts cuts a visible slice of that business. Contracts tied to statements by politicians, to comments on corporate earnings calls and to words spoken in live news broadcasts stay up.
Self-certification under review
The CFTC's look at the category follows a case involving a teleprompter operator for President Trump who made money betting on words the president would or would not say in public. Kalshi's monitoring systems flagged the activity and referred the matter to federal authorities. A person familiar with the regulator's position said mention markets are 'very easy to manipulate', and the commission is weighing whether they should exist at all.
Most US prediction platforms list contracts through self-certification, where the operator must confirm a market is not readily susceptible to manipulation. Mention markets trouble Kalshi's own lawyers as much as the regulator. The format draws insiders.
A settlement test case
The risk is not theoretical. During the World Cup final a Fox commentator mixed up Matt Damon with Brad Pitt on air, and several outlets Kalshi relies on for settlement repeated the mistake. The market closed in favour of Pitt being present, although the actor was not at the stadium. Bettors who took the other side lost $287,866.
Polymarket also offers mention markets, but only on its international platform, outside CFTC jurisdiction.
