CFTC examines 'mention markets' as Kalshi removes its sports mention contracts
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What happened
NPR reported on August 13, 2026 that the Commodity Futures Trading Commission had opened an inquiry into so-called mention markets, where traders bet on what a speaker will or will not say. Citing people with direct knowledge of the probe, NPR said Kalshi, which it described as the largest prediction market in the U.S., removed all mention markets from its sports offerings while the inquiry continued. Kalshi still allowed wagers on what people say at political events, on earnings calls and during live television newscasts. The scrutiny followed a disclosure the previous month that President Trump's longtime teleprompter operator had profited from bets on Kalshi about the president's words. Kalshi and the CFTC declined to comment.
On September 22, 2026, CNBC reported that the CFTC had advised regulated exchanges that mentions contracts carry a greater risk of manipulation. The agency said the letter created no new obligations and set out factors for listing such contracts. A Kalshi spokesperson said the company had addressed the guidance based on a prior discussion with the CFTC. NPR said sports wagers made up more than 80% of the billions of dollars traded weekly on Kalshi; neither source gave a figure for mention markets.
Key points
- NPR reported on August 13, 2026 that the CFTC had opened an inquiry into mention markets.1
- Kalshi removed all sports mention markets during the inquiry but kept political, earnings-call and newscast ones.1
- The probe followed a July disclosure that Trump's teleprompter operator profited from mention bets on Kalshi.12
- On September 22, 2026 the CFTC advised exchanges that mentions contracts carry greater manipulation risk.2
Why it matters
The removal covered sports mention markets only; Kalshi kept mention contracts on political events, earnings calls and newscasts, per NPR. Sports wagers make up more than 80% of weekly trading on the site, but neither source gave a figure for mention markets.
The CFTC's September letter set out factors for listing mention contracts and said it created no new obligations for exchanges. Kalshi said it had already addressed the guidance after a prior discussion with the agency.
NPR reported that Kalshi faces more than two dozen lawsuits from states and tribes over sports betting, the category where most of its trading happens.
In context
| Round | Date | Post-money valuation | Raised | Led by |
|---|---|---|---|---|
| Series C | Jun 25, 2025 | $2.0B | $185M | Paradigm |
| Series D | Oct 10, 2025 | $5.0B | $300M | Andreessen Horowitz and Sequoia Capital |
| Series E | Dec 2, 2025 | $11B | $1.0B | Paradigm |
| Series F | May 7, 2026 | $22B | $1.0B | Coatue |
| Series F extension | May 20, 2026 | $22B | $200M | Unknown |
Updated
Fact-check
- On August 13, 2026, NPR reported that the CFTC had opened an inquiry into mention markets.Confirmed by [1] NPR (August 13, 2026), citing two people with direct knowledge of the probe; [2] CNBC says it reported in August that the agency was conducting an internal review.Verified
- Kalshi removed all mention markets from its sports offerings while the inquiry continued, and still allowed mention wagers on political events, earnings calls and live newscasts.Confirmed by [1] NPR, attributed to one of its sources; [2] CNBC says Kalshi pulled its sports-related mention markets.Verified
- NPR described Kalshi as the largest prediction market in the U.S.Stated by [1] NPR; presented in the post as NPR's description.Verified
- The scrutiny followed a disclosure the previous month (July) that Trump's longtime teleprompter operator profited from Kalshi bets on the president's words.Confirmed by [1] NPR ('Last month, regulators revealed') and [2] CNBC (headlines in July).Verified
- On September 22, 2026, the CFTC advised regulated exchanges that mentions contracts carry greater manipulation risk, without creating new obligations.Confirmed by [2] CNBC (published 2026-09-22), which describes the letter and its listing factors.Verified
- A Kalshi spokesperson said the company addressed the guidance based on a prior discussion with the CFTC.Confirmed by [2] CNBC, quoting spokesperson Elisabeth Diana.Verified
- Sports wagers account for more than 80% of the billions of dollars traded weekly on Kalshi, and it faces more than two dozen state and tribal lawsuits over sports betting.Confirmed by [1] NPR.Verified
Sources
- [1]NPR (opens in a new tab)Feds probe 'mention markets' amid White House Kalshi controversyKalshi, the largest prediction market in the U.S., has removed all mention markets from its betting offerings for sports
- [2]CNBC (opens in a new tab)CFTC says prediction markets' 'mentions' contracts present a higher risk of manipulationWe've addressed this guidance based on a prior discussion with the CFTC
