Robinhood and Crypto.com urge Supreme Court to clarify prediction market rules

Robinhood and Crypto.com push Supreme Court to settle prediction market rules

In the Southern District of New York on September 22, the Mexican Football Federation filed a trademark suit against Kalshi over the platform's use of Liga MX club names. Three days earlier, the CFTC's Division of Market Oversight issued an advisory warning that contracts tied to whether a named individual speaks certain words or appears at certain events are structurally prone to manipulation. On the same week, multiple parties asked the Supreme Court to resolve whether federal law preempts state attempts to shut prediction markets down entirely.

Kalshi is now fighting on four fronts simultaneously: the en banc petition after losing six federal judges, the Montana settlement that produced no precedent, the CFTC's margin proposal, and now a trademark action from one of the largest soccer federations in North America. Each of those is a separate legal surface area. Each requires separate counsel, separate regulatory engagement, and separate management attention.

The conventional read is that this is a company absorbing friction on the way to legitimacy. Regulatory and legal resistance, on this account, is what maturity looks like for a novel asset class — the price of the seat at the table.

The advisory from the Division of Market Oversight complicates that reading. The CFTC did not issue a rule. It issued four factors that designated contract markets should weigh when designing mention market submissions: outside obligations of the subject, external pressures on their conduct, independent verifiability of the settlement event, and oversight measures sufficient to detect manipulation. The Gabriel Perez insider trading order — a teleprompter operator for President Trump who traded on contracts tied to Trump's own statements — is the specific event that pulled this onto the regulatory agenda. The CFTC named a dollar figure and closed the case. Then it published the guidance anyway.

That sequence matters. Enforcement followed by advisory guidance is not how a regulator signals that it has handled the problem. It is how a regulator signals that the problem is larger than the case.

The reporting frames Kalshi's spokesperson statement — "we've addressed this guidance based on a prior discussion with the CFTC" — as routine. Regulators and regulated entities talk before guidance publishes; that is standard. What the statement cannot resolve is whether Kalshi's existing mention market architecture satisfies the four-factor standard as written, or merely satisfies it under the informal interpretation discussed in that prior conversation. Those are different claims, and only the written standard is enforceable.

Polymarket's mention markets sit outside CFTC jurisdiction entirely, operating through its international exchange. That structure has its own exposure — the ongoing CFTC fraud inquiry into Polymarket is proceeding on a different track — but it means the mention market guidance lands asymmetrically. Kalshi absorbs it directly. Polymarket does not.

The consensus view in this space holds that Supreme Court clarity on federal preemption is the dominant variable: resolve that, and most of the state-level friction dissolves. That may be right. The consensus has been saying it for long enough that it has become the default framing rather than an argued position.

The CFTC's mention market advisory is not about state preemption. It operates entirely within the federal framework Kalshi is already subject to. Whatever the Supreme Court decides about state authority, the four-factor standard from the Division of Market Oversight applies to every mention contract Kalshi lists on US soil. The litigation map and the regulatory map are not the same map, and treating Supreme Court resolution as the clearing event understates what is already accumulating on the federal side.