Regulators shift focus from Kalshi to Polymarket's terms of service

Federal preemption fight shifts from Kalshi to Polymarket's terms of service

Gabriel Perez had inside information, and he used it. The former White House teleprompter operator knew what Trump would say before Trump said it, and he turned that knowledge into trades on mention markets. The CFTC banned him for three years. Then, in a staff advisory issued September 22nd, it told every Designated Contract Market that mention contracts — those that settle on whether a single individual utters a specific phrase — carry a manipulation risk that existing listing rules were not written to handle.

That advisory is the quieter story this week, and it matters more than the Polymarket lawsuit it was overshadowed by.

The Commodity Exchange Act's Core Principle 3 prohibits DCMs from listing contracts readily susceptible to manipulation. The CFTC's September 22nd memo does not ban mention markets. It requires DCMs that want to list them to implement what the advisory calls "prophylactic trading rules" — detection and deterrence systems the markets do not currently have in standard form. The advisory also carries the standard disclaimer that it creates no enforceable rights and no binding rules. That is the CFTC protecting its own flexibility as much as it is guiding the industry.

Here is where I part from the consensus reading: most of the attention has gone to the state-versus-federal preemption fight, and that fight is real. But the mention market advisory is a different kind of problem. State attorneys general are suing over age verification and unlicensed gambling. The CFTC is quietly flagging that a category of contracts at the core of prediction market culture — will he say "witch hunt," will she mention the deficit — may be structurally unlistable under existing DCM obligations. Those are federal obligations, and they do not disappear because Kalshi wins on preemption.

Polymarket's position makes this sharper. Its markets operate offshore. The CFTC advisory lands on DCMs, and Polymarket is not one. But Polymarket is simultaneously suing New York in federal court, seeking the same preemption shelter that Kalshi has been fighting for. If that argument succeeds, Polymarket moves closer to regulated status — and closer to Core Principle 3. The federal protection it wants comes bundled with the federal standards it has not had to meet.

The Perez case is the tell. He was not a sophisticated trader exploiting a pricing inefficiency. He was a staffer with a schedule. The information asymmetry was not analytical — it was positional. One person in one room, with access no market structure can price around. The CFTC knows it cannot write a rule that fixes that, so it is asking DCMs to build surveillance systems instead, without specifying what those systems must look like or how their adequacy will be judged.

That gap between expectation and standard is where enforcement discretion lives. The advisory creates no rights, but it does create a record: the CFTC put the industry on notice that it was watching this category. The next enforcement action in this space will not look like a surprise.