FTC Scrutiny of Prediction Markets: What Traders Need to Know

A multi-billion-dollar betting platform just quietly deleted an entire category of contracts. No press release. No warning to users. Just gone — the same week federal regulators started asking questions.

The CFTC is reviewing prediction betting platforms’ so-called “mention markets,” according to people familiar with the matter. In response, Kalshi has taken down its sports-related mention exchanges, while all mention-based contracts on Kalshi remain paused, with no indication of when — or whether — they will return.

The Story

Mention markets let traders bet on whether a specific word or phrase gets said publicly — a broadcaster’s name-drop, a politician’s talking point. Federal regulators and Kalshi’s own lawyers have growing concern that betting on certain kinds of speaking events attracts possible manipulators, since the markets are potentially very easy to manipulate, which is precisely the vulnerability regulators are now probing.

The Numbers Behind the Panic

The trading volume at stake is small relative to the broader industry, which is exactly what makes the regulatory reaction notable.

• Kalshi’s Trump-related markets alone accounted for 82% of the roughly $1.16 million in visible mention-market volume still listed on the platform after the sports category was pulled.
• Bernstein estimates total prediction market trading volumes will reach $240 billion in 2026 and could hit $1 trillion a year by 2030, a roughly 80% compound annual growth rate.
• Polymarket offers mention markets on its offshore platform, but its smaller CFTC-regulated U.S. exchange does not currently list them — a jurisdictional split regulators are watching closely.

A Regulator Playing Both Sides

The CFTC’s posture is more complicated than a simple crackdown. The same agency conducting this review has separately challenged several state actions in court, arguing that prediction markets fall under exclusive federal jurisdiction rather than state gambling law. In other words: the CFTC wants prediction markets to exist under federal rules — it just wants them cleaner.

Regulators Are Already Tightening Language

CFTC staff issued an advisory reminding designated contract markets of their regulatory obligations when self-certifying rules for market-maker, liquidity, and incentive programs — specifically warning prediction markets against promising “risk-free” incentives, unlimited payouts, or promotions that could guarantee profits or offset losses, language that echoes terms regulators have long sought to eliminate from state-regulated sportsbook marketing.

The Solution — What Traders and Investors Should Watch

This isn’t the end of prediction markets. It’s the industry’s first real collision with federal derivatives law, and the outcome will shape whether prediction markets scale as a legitimate financial product or stay a regulatory gray zone.

Check before you trade: If you hold open positions in mention markets on any platform, confirm current contract status directly with the exchange — several categories have been paused industry-wide with no public timeline for resumption.

• Watch for further CFTC guidance on how the agency plans to formally regulate event contracts tied to speech, media, and public figures.
• Watch the ongoing state-vs-federal litigation over CFTC jurisdiction — its outcome determines whether prediction markets face one federal regulator or a patchwork of state gambling rules.
• Watch Polymarket’s offshore mention-market offerings as a test case for whether U.S. regulatory pressure simply pushes this activity outside U.S. jurisdiction rather than eliminating it.

Frequently Asked Questions

What are “mention markets”? Prediction market contracts that let traders bet on whether a specific word or phrase will be said during a broadcast or public event.

Why did Kalshi remove its mention markets? The CFTC opened a review of the category, and Kalshi removed all of its mention markets for sporting events in response.

Is prediction market trading legal in the U.S.? Prediction markets operate under CFTC jurisdiction as regulated event contracts, though the agency has separately sued states that have attempted to apply their own gambling laws to these platforms.