Underdog Opens Its Prediction Market to Operators

Underdog spent most of this year assembling the full set of federal registrations an American event-contract venue needs, and it has now put that work up for sale. The company signed a partnership with technology provider Plaee on 13 November. It opens Underdog Exchange to Plaee’s white-label clients, who can now reach its prediction market contracts without filing a single registration of their own.

The arrangement splits cleanly down the middle. Underdog supplies the regulated half, and Plaee wraps a prediction market product around it, so neither side has to learn the other’s job. For a casino watching the category from the sidelines, that division of labour is the pitch.

Who Supplies What

Plaee handles everything the customer touches. Its Prediction Trader interface sits at the front, PlaeeOS runs retention and monetisation behind it, and the platform also handles exchange connectivity and payments. Underdog takes the heavier end, supplying the trading, clearing and brokerage that every prediction market order has to pass through, all of it run by entities already registered with the Commodity Futures Trading Commission.

The split matters because of what it removes: an operator joining through Plaee avoids registering as a designated contract market, a derivatives clearing organisation and a futures commission merchant. That three-part stack keeps most newcomers out of the category for a year or longer. Both companies say a business can go live in weeks. Underdog Exchange will also appear natively inside the products Plaee already runs, so existing clients get the venue without a fresh build.

How Underdog Built Its Prediction Market Licences

Underdog started out on the other side of this exact arrangement. In September 2025 it became the first sports operator to put event contracts inside its own app, running them through a technology partnership with Crypto.com. The product found an audience, though the underlying economics stayed with somebody else.

March changed the picture. Underdog bought Aristotle Exchange and picked up a registered designated contract market and a derivatives clearing organisation in one transaction, while its futures commission merchant registration sits with UDM, LLC, trading as Underdog Predict. The exchange opened for trading in July. By the time this partnership landed, Underdog was clearing its own prediction market trades rather than routing them to a rival venue.

The Third Exchange on Plaee’s Shelf

Plaee does not work with Underdog alone. Crypto.com Derivatives North America and ProphetX already sit inside the same interface, and operators pick between the venues rather than accepting whichever one their vendor happened to sign. Underdog arrives as the third name on that list, carrying a sports-heavy prediction market inventory the other two cannot match.

Nick Lundgren, chief legal officer at Underdog, framed the agreement as an expansion of the company’s business-to-business work and a way to bring prospective partners into the category. Leon Okun, who co-founded Plaee and runs it as chief executive, pointed at the difficulty operators face when they build prediction products alone. Pairing his technology with regulated infrastructure, he said, gives them a shorter route to launch. Competition for that shelf space says plenty about where the money in this industry has started to move.

Casinos Are Circling the Category

Plaee reports growing interest from US casinos, sweepstakes companies and international sportsbooks. Land-based operators have mostly stayed clear of event contracts to protect their state gaming licences, and more than one regulator has signalled that entering the space would reopen suitability questions. A white-label route does not erase that risk, but it lowers the cost of testing the water.

Sweepstakes firms face a different calculation entirely, and for them the appeal runs deeper. Their legal footing has eroded state by state, and a federally regulated product starts to look like an escape hatch with better foundations under it. Underdog lists prediction market contracts across sports, entertainment and finance, a ready-made catalogue for a new brand.

The Legal Ground Has Not Settled

Every deal in this corner of the industry rests on one assumption, that federal oversight of event contracts holds up. Several states have challenged that premise in court, arguing contracts tied to sports results are wagers under local law, and the rulings so far have not pointed in a single direction. An operator launching through Plaee inherits the question along with the technology.

Speed remains the selling point, and Underdog has turned its prediction market licences into the product other companies pay for. The catch sits with the courts, where judges in separate states have reached opposite conclusions about who gets to regulate a contract on a Sunday football game. Everyone building here is backing the federal answer.