CFTC Sues Arkansas to Block State Lawsuit Against Kalshi Over Sports Event Contracts
The CFTC filed suit against Arkansas on 12 November 2026, arguing federal law bars the state from penalizing Kalshi over sports event contracts.
The Commodity Futures Trading Commission (CFTC) sues Arkansas in the US District Court for the Eastern District of Arkansas, in a complaint filed on 12 November 2026 and announced the next day, to stop the state from halting event-contract trading or penalizing registered exchanges such as Kalshi.
The CFTC says federal law preempts the state's efforts. Arkansas is the 11th state the agency has sued over prediction markets. The complaint seeks injunctive and declaratory relief.
What the CFTC is asking the court to do
The CFTC wants the court to declare that the Commodity Exchange Act (CEA), the federal statute governing derivatives trading, preempts Arkansas's attempts to stop event-contract trading and to impose civil penalties on CFTC-registered exchanges. The agency's press release says those penalties could run to "up to hundreds of millions of dollars."
Chairman Michael Selig, who was sworn in on 22 December 2025, said in the release that the CFTC "will continue to defend its sole jurisdiction" over these markets.
The complaint argues that the sports event contracts at issue are "swaps" under the CEA. That position tracks the agency's rulemaking: the CFTC has proposed placing event contracts inside the swap definition, with comments due on 18 November 2026.
The CFTC says it has also filed amicus briefs in four federal Courts of Appeal and one state Supreme Court on the same question.
According to Courthouse News, the case is numbered 4:26-cv-01255-BSM, runs to 34 pages, and names both the State of Arkansas and Attorney General Tim Griffin. Courthouse News and RG.org both report that the Justice Department joins as co-plaintiff on behalf of the United States.
The Arkansas case that triggered the suit
Griffin sued KalshiEX LLC and Kalshi Inc. on 4 November 2026. According to the CFTC complaint, the state case sits in Independence County Circuit Court. The Attorney General's office says the suit alleges violations of the Arkansas Deceptive Trade Practices Act and seeks "restitution, penalties, taxes, and injunctive relief."
The office describes Kalshi as an unlicensed gambling platform. It says the company let people as young as 18 wager on sports, and it points to Kalshi's self-exclusion and deposit-limit tools. These are the state's allegations, and Kalshi has the opportunity to contest them in court.
The pleaded claim is consumer protection, with the gambling characterization serving as the underlying theory. That framing matters for the preemption fight, because the CFTC's position is that the CEA displaces state action aimed at CFTC-registered exchanges regardless of the label attached to it.
The penalty figure
The "hundreds of millions of dollars" number comes from the CFTC, not from Arkansas. The complaint argues that per-violation penalties under Arkansas law would "dwarf Kalshi's income" in the state and "could reach the hundreds of millions of dollars." According to RG.org, the state statute allows up to $10,000 per violation. The Attorney General's release does not state a penalty total.
| Date | Event |
|---|---|
| 4 November 2026 | Griffin sues KalshiEX LLC and Kalshi Inc. in Independence County Circuit Court |
| 12 November 2026 | CFTC complaint filed in the Eastern District of Arkansas |
| 13 November 2026 | CFTC announces the suit; Arkansas is the 11th state sued |
| 18 November 2026 | Comments due on the CFTC's proposed swap-definition treatment of event contracts |
How this fits the wider state-federal fight
The suit lands after conflicting trial-level results elsewhere. In Illinois, Judge Pacold entered a preliminary injunction blocking licensing and tax rules on sports event contracts. In New York, Judge McMahon denied Novig's injunction, leaving the state free to apply its gambling law.
States have also used other tools. Utah filed 14 criminal charges against Kalshi and its co-founders, which are allegations only, while Kalshi itself sued Louisiana officials in federal court to protect its sports contracts. State gaming regulators continue to press the same argument; Massachusetts Gaming Commission Chair Maynard told a House panel that prediction markets evade state sports betting rules.
Arkansas differs in one respect from those matters: the federal government is now the plaintiff against a state that has already filed its own case, rather than the exchange seeking protection. A ruling on preemption would speak directly to whether a state can use consumer-protection law against a federally registered exchange.
What operators and exchanges should watch
- Court response: Arkansas will need to answer the complaint in federal court, and any motion to dismiss or stay would show how the state intends to defend its Kalshi case.
- Parallel proceedings: the state case in Independence County Circuit Court and the federal case now run side by side, which raises the possibility of competing orders.
- Rulemaking: the swap-definition comment deadline of 18 November 2026 falls days after the filing, and the final treatment of event contracts will shape the CFTC's preemption argument.
- Exposure modeling: operators with state-level footprints should note that the CFTC itself is framing per-violation penalties as potentially existential for a single exchange in a single state.
Status reviewed on 14 November 2026. Dates and quotations come from the CFTC press release and complaint and the Arkansas Attorney General's release; case-number, co-plaintiff and penalty-cap details are attributed to the outlets named. More regulation news and North America coverage.
Frequently asked questions
Why did the CFTC sue Arkansas?
The CFTC says the Commodity Exchange Act gives it sole jurisdiction over event-contract trading on registered exchanges, so Arkansas cannot halt that trading or fine the exchanges. The agency filed in federal court on 12 November 2026 seeking injunctive and declaratory relief against the state's efforts, including its case against Kalshi.
What is Arkansas accusing Kalshi of?
Attorney General Tim Griffin sued KalshiEX LLC and Kalshi Inc. on 4 November 2026 under the Arkansas Deceptive Trade Practices Act. The state calls Kalshi an unlicensed gambling platform that let people as young as 18 wager on sports, and seeks restitution, penalties, taxes and injunctive relief. These are allegations.
How many states has the CFTC sued over prediction markets?
The CFTC says Arkansas is the 11th state it has sued. Beyond those suits, the agency has filed amicus briefs in four federal Courts of Appeal and one state Supreme Court, backing the position that federal law gives it exclusive authority over event-contract markets.
Does the CFTC say Arkansas demanded hundreds of millions of dollars?
No. The complaint says per-violation penalties under Arkansas law would dwarf Kalshi's income in the state and could reach the hundreds of millions of dollars. That is the CFTC's estimate of possible exposure. The Arkansas Attorney General's release lists restitution, penalties, taxes and injunctive relief without stating that figure.
What does the Arkansas suit mean for other prediction market operators?
The case adds to a patchwork of state and federal disputes over sports event contracts. A federal ruling on preemption in Arkansas could influence how other states treat CFTC-registered exchanges, but the court has not ruled, and earlier decisions in Illinois and New York went in different directions.
