Kalshi's Nasdaq Defense Is Right About the Plumbing and Wrong About the Market

New York's lawsuit against Kalshi is a regulatory turf war dressed up as consumer protection. Kalshi's defense is a regulatory shield dressed up as market structure. Both sides are right about the mechanics and wrong about the deeper question - whether prediction markets have the participant ecology to sustain themselves as financial instruments, or whether they are ultimately what New York says they are.

Kalshi CEO Tarek Mansour appeared on CNBC last week and said you could "copy and paste" New York's complaint and file it against Nasdaq, the exchange literally in the same building he was broadcasting from. The point is that Kalshi matches traders and charges transaction fees, just like any exchange. If the legal theory is that facilitating bets on future contingent events makes you a casino, then every exchange listing options on sports franchises should also be a casino.

The problem with the Nasdaq comparison is that it conflates the plumbing with the purpose.

Yes, Kalshi operates as an exchange. It is registered with the Commodity Futures Trading Commission as a designated contract market - the same regulatory category that covers CME, Nasdaq's derivatives platform, and ICE. It matches long and short positions, charges fees per trade, and doesn't take the other side of the bet. That structural difference from traditional sportsbooks is real. In a casino or on DraftKings, the house always has a mathematical edge. Mansour claims New Yorkers have collectively made over $200 million on Kalshi so far this year, compared to a net loss of $200 million at licensed sportsbooks over the same period. Those are company figures, not independently verified, but the structural claim is correct: on an exchange, participants can profit from each other.

But the exchange structure is not what makes Nasdaq a financial market. What makes Nasdaq a market is that it serves underlying economic relationships - companies raise capital, investors price risk, market makers manage inventory exposure for corporate clients. The natural hedgers - producers, consumers, institutions with directional exposure - create the gravity well that pulls speculators in and provides the liquidity that makes the market useful.

Prediction markets, by contrast, are still searching for their natural hedgers. As I wrote about in February, the two-sided ecology that sustains derivatives markets - farmers shorting wheat futures while cereal manufacturers go long - doesn't have an obvious analog in event contracts. Who has natural directional exposure to whether the Chiefs win the Super Bowl, and needs to hedge it? The sports betting industry itself, perhaps, but they have their own risk management tools. A company whose revenue depends on an election outcome might hedge on a prediction market, but those contracts are fragmented across platforms, maturities, and formulations, creating the basis risk that makes hedges useless. The most useful hedge - the exact event, the exact timing, the exact payoff structure - tends to be the least liquid.

Prediction markets without natural hedgers are not exchanges in the economic sense. They are betting pools with better UI. The plumbing is exchange-like. The participant ecology is not.

The legal architecture is where the incentive structure gets interesting, because the labels both sides are using are doing heavy lifting.

Kalshi's defense rests on federal preemption. The Commodity Exchange Act, under which Kalshi is registered, grants the CFTC exclusive jurisdiction over designated contract markets. Kalshi argues - and the CFTC agrees - that Congress did not intend for individual states to reclassify federally regulated derivatives as gambling and shut them down. The Third Circuit partially validated this theory in April, ruling 2–1 that Kalshi's sports event contracts qualify as "swaps" under the CEA and are shielded from state gambling laws. That's a preliminary injunction, not a merits ruling, but it's the first appellate court to reach this conclusion.

The counter is that Congress never intended to preempt state gambling authority. The 34-state amicus brief filed in the New Jersey case makes the structural point: regulating gambling has been a core state power since colonial times, and the CEA was designed for agricultural and financial derivatives, not consumer-facing sports wagers. The Maryland district court agreed, denying Kalshi's preemption claim and noting that the CEA contains no express preemption language for state gambling laws.

The current state of play is a patchwork. Kalshi has been blocked by court order in Massachusetts, Michigan, Nevada, and Washington. The CFTC has countersued several states, arguing that state enforcement undermines federal regulatory authority. In Arizona, a federal judge permanently blocked the state from pursuing criminal charges against Kalshi. The Ninth Circuit is expected to hear consolidated arguments involving Kalshi, Robinhood, and Crypto.com, and if it reaches a different conclusion than the Third Circuit, you'll have a circuit split headed to the Supreme Court.

New York's latest lawsuit is the most consequential single action because Kalshi is headquartered in the state and New York has already sued Coinbase Financial Markets and Gemini Titan on the same theory. The state is seeking a permanent injunction, disgorgement, restitution, and civil penalties totaling up to $36 billion. Kalshi removed the case to federal court eight hours after filing, which temporarily sidestepped New York's preliminary injunction request - but that's a procedural maneuver, not a legal victory. The substantive question of whether federal preemption applies to prediction markets remains unresolved.

Here's the incentive map, because it's the thing nobody wants to draw explicitly.

The states are protecting regulated gaming ecosystems. Licensed sportsbooks pay state fees, contribute to responsible gambling programs, enforce age restrictions (21 in New York), and fund public services through tax revenue. Kalshi lets users as young as 18, doesn't pay state gaming taxes, and hasn't contributed to the infrastructure that the states built around regulated sports betting. The consumer protection argument - underage gambling, problem gambling, lack of exclusion programs - is part of the story. But it's the part that makes the lawsuit politically palatable. The economic story is that prediction markets are bypassing the entire state licensing and tax regime. Sports-related event contracts account for over 90% of Kalshi's activity. If those contracts are genuinely preempted by federal law, the state's sports betting license becomes a tax on customers who choose the more expensive option.

Kalshi is defending a regulatory arbitrage that it has structured as innovation. The company spent years and millions of dollars to obtain CFTC registration - not a trivial feat - and has built its entire business model on the premise that federal regulation is sufficient. Sports contracts came in early 2025, after the CFTC dropped its appeal against political event contracts following the 2025 administration change. The timing is important: sports contracts are what accelerated the growth but also what triggered the backlash. Without sports, prediction markets would be a niche product for politics and pop culture. With sports, they're a direct competitor to the largest legal gambling category in the country.

The CFTC wants exclusive jurisdiction because that's its mandate, and because a fragmented 50-state regulatory environment makes its job impossible. The agency filed an emergency motion to stop New York's enforcement, calling state action "overreach." The CFTC is not indifferent to consumer protection - it has its own authority to prohibit event contracts that are contrary to the public interest, including those involving gaming. But the CFTC's consumer protection tools are designed for institutional derivatives markets, not retail sports betting. The gap between what the CFTC is equipped to oversee and what prediction markets have become is real.

The established sports betting industry - DraftKings, FanDuel, BetMGM, state-licensed operators - has the most direct incentive to support the states. They've invested billions in compliance, marketing, and lobbying to build a legal sports betting framework. Prediction markets that operate without state licensing are, from their perspective, unfair competition. Mansour framed this as the Uber vs. taxi dynamic - a new entrant disrupting an entrenched industry that responds with litigation and regulation. That's a defensible frame for disruption, but it doesn't address whether the new entrant serves a function that the old system couldn't. The exchange structure, where users profit from each other rather than losing to the house, is theoretically better for consumers. It's just not clear that it's structurally different enough to warrant its own regulatory category.

Verdict: The real question isn't whether prediction markets are gambling or financial instruments. It's whether they can be financial instruments without the economic relationships that make financial instruments useful. The legal label determines who collects the fees. The participant ecology determines whether the market survives. Prediction markets are currently being decided by the former while the latter remains underdeveloped. The law can grant preemption. It can't create natural hedgers.