Robinhood Says It’s an Investment. A Lawsuit Says It’s a Sportsbook.

The short version: In June 2026, a Robinhood customer from Georgia named Matthew Mazza filed a proposed class action against Robinhood Markets, Inc. and its subsidiary Robinhood Derivatives, LLC in the U.S. District Court for the Northern District of California. According to the complaint, Robinhood’s prediction markets hub — where customers buy contracts that pay out based on the outcome of sporting events — is, in substance, an illegal, unlicensed sports gambling operation that the company markets as an “emerging asset class.” Mazza says the contracts carry odds and payouts nearly identical to a traditional sportsbook, and that they were made available to users in all 50 states, including states that prohibit sports betting outright. Mazza alleges he personally lost about $400,000 in fees, commissions, and wagers on the platform in 2025 and 2026.

Every one of those points is an allegation that a court has not ruled on. Robinhood has consistently described its prediction markets as legitimate, regulated financial products, and the company has strong arguments — more on those below. But the case is worth understanding even before it’s resolved, because it puts a plain-English question in front of millions of app users: when you tap “buy” on a contract tied to tonight’s game, are you investing, or are you gambling? And if it’s gambling, who’s supposed to be watching?

What Is a “Prediction Market,” Really?

Start with the product, because the whole case turns on it. A prediction market lets you buy and sell contracts that settle based on whether some future event happens. Buy a contract for “Team A wins tonight,” and if Team A wins, the contract pays a fixed amount; if Team A loses, it’s worth nothing. The price of the contract before the game moves with how likely the market thinks the outcome is — which is just another way of describing odds.

Supporters have a specific name for these: “event contracts,” a kind of financial derivative that falls under the umbrella of the Commodity Futures Trading Commission (CFTC), the federal agency that oversees futures and commodities trading. In that framing, betting on whether the Fed will raise rates, who wins an election, or how a game ends is no different in kind from trading a contract on the future price of oil. Robinhood sources many of its sports contracts through Kalshi, a federally registered exchange built around this idea, and the company has said more than 12 billion event contracts traded on its platform in 2025.

The lawsuit’s answer is blunt: if it walks like a bet and pays like a bet, it’s a bet. The complaint alleges that Robinhood’s sports contracts mirror the exact wagers you’d find on DraftKings or FanDuel — point spreads, player props, even parlay-style combinations the suit says the company added in late 2025 — and that dressing them in the language of “trading” and “asset classes” doesn’t change what they are. That is the heart of the dispute, and courts and regulators genuinely disagree about the answer.

How It Could Be Offered Where Betting Is Banned

Here’s the part that surprises people. Sports betting is legal in many states but flatly illegal in others, and even where it’s legal it’s tightly licensed — you have to be inside state lines, of legal age, and using an approved operator. So how can an app offer something that looks like a sports bet to users in states that outlaw it?

The answer is a legal theory called federal preemption. Because event contracts trade on exchanges the CFTC regulates under federal commodities law, the companies argue that federal law governs them and overrides conflicting state gambling laws. If that’s right, a state’s ban on sportsbooks simply doesn’t reach a federally regulated event contract — even one tied to a game. That is how a single national product can be offered coast to coast without applying for a sportsbook license in each state.

This is not just a talking point; it has real traction in court. In 2026, a federal appeals court ruled that the CFTC has exclusive jurisdiction over certain sports-related event contracts offered by Kalshi — a ruling that undercut a state’s attempt to shut them down. The CFTC has gone on offense too, taking several states to court over their crackdowns. On the other side, a coalition of state attorneys general has backed one state’s enforcement action, arguing states must be allowed to police what they see as gambling. Some states have sent cease-and-desist letters, and in a handful the sports contracts simply aren’t available. In short: the question of who gets to regulate this is being fought out right now, and it isn’t finished.

Two Different Fights, Easy to Confuse

It’s worth separating two battles that get blurred together in headlines, because they’re not the same thing:

• The regulator fight (who’s in charge): This is the CFTC-versus-the-states war over who has the authority to regulate event contracts — federal commodities regulators or state gambling regulators. It’s about jurisdiction and licensing, and it’s playing out in appeals courts and enforcement actions.
• The consumer fight (this lawsuit): This is a private class action brought on behalf of everyday users who say they lost money. It doesn’t ask the court to decide national policy — it asks the court to decide whether Robinhood should have to return money users lost and stop offering the contracts, on the theory that they were illegal gambling in the first place.

The two are linked, of course. If courts ultimately decide these contracts are lawful, federally regulated products, that’s a powerful shield for Robinhood in the consumer case. If courts decide they’re really gambling that dodged state law, that helps the plaintiffs. That’s why a fintech dispute that sounds technical — commodities law, preemption, exchange registration — ends up mattering to a college student in a state where sports betting is banned who lost a paycheck on “contracts” tied to a Sunday slate of games.

What the Lawsuit Is Asking For

According to the complaint, the proposed class covers people who lost money trading at least one sports event contract on the platform. The suit asks the court to make Robinhood return the money class members lost and give up the profits it earned from the contracts — the complaint points to the roughly one-cent-per-contract fee the company collects, plus interest it earns on customer funds — and it seeks a court order stopping Robinhood from offering the contracts.

Two things to keep in mind. First, this is what the plaintiff is requesting; a court has granted none of it. The case still has to clear early hurdles — most importantly whether it can proceed as a class at all — and Robinhood will fight each step. Second, and this matters for anyone reading with their own losses in mind: a filed class action is not a payout, a settlement, or a promise that any individual will recover anything. It is the opening of a fight, not the result of one.

An Accusation Is Not a Verdict

Lawsuit Loop reports open cases because they’re news, not because we’ve reached a verdict the court hasn’t. The responsible way to cover a fresh filing is also the accurate way: describe what the plaintiff alleges, describe the defenses, and be clear about what hasn’t been decided. On the biggest legal question here — investment or gambling, federal or state — reasonable judges have genuinely landed in different places, and this case is one more place that question will be tested.

Why This One Matters Beyond Robinhood

Prediction markets exploded in popularity through 2025 and 2026, and Robinhood is far from the only name in the space. The outcome of fights like this one could reshape how tens of millions of people interact with a product that blurs the line between a brokerage account and a betting slip. It also lands in the middle of a real public-health conversation about how app-based, always-on wagering — whether it’s called betting or trading — affects people prone to gambling harm, a concern lawmakers have raised directly with regulators.

We’ve tracked the broader pattern of consumer-finance and tech accountability elsewhere — from disputes over recurring charges consumers say they never clearly agreed to to a landmark jury verdict over how platforms are designed to keep users engaged. The Robinhood case fits that thread: a popular, frictionless app, a product that’s enormously profitable to the company, and a lawsuit asking whether the fine print kept up with what the app actually does.

Where the Law Comes In

Lawsuit Loop follows cases like this because they sit where consumer protection meets fast-moving technology. When a company is alleged to have offered an illegal product and profited from people’s losses, one of the questions that follows is whether those people can get their money back — and class actions are one of the main tools the law provides for that. The same kind of “the product itself was the problem” accountability shows up across our coverage, from hidden fees to deceptive marketing.

Whether any particular person has a claim depends entirely on the specific facts — what you traded, when, how much, the state you live in, and how the courts ultimately resolve the investment-versus-gambling question — and nothing here is a prediction that any case will succeed or a promise of any outcome. This is an evolving area of law, which is part of why the facts matter so much. If you traded Robinhood’s sports event contracts and lost money and want to understand your options, you can talk to a lawyer or use the free form on this page. Lawsuit Loop will update this article as the case and the surrounding regulatory fights develop.