underdog prediction markets (2026)
Underdog prediction markets refer to the event-contract trading platform built by Underdog Fantasy, the daily fantasy sports company that has expanded into CFTC-regulated exchange trading. Instead of placing a traditional sports bet, users buy and sell contracts tied to the outcome of a game or event, with the contract’s price moving up or down based on how likely that outcome looks in real time. The product is branded Underdog Predict, and it runs on exchange infrastructure Underdog now partly owns through its acquisition of Aristotle Exchange.
What Underdog Predict actually is
Underdog Predict is not a sportsbook. It’s a broker and, increasingly, an exchange operator that lets customers trade “event contracts,” which are financial instruments whose value depends on a real-world outcome, such as which team wins a game or whether a player hits a certain stat line. A contract might settle at $1 if the outcome happens and $0 if it doesn’t, and its price between now and settlement reflects the market’s collective view of the odds.
This structure puts Underdog Predict under federal commodities law rather than state gambling law, which is the main reason the product looks and feels similar to sports betting but is marketed and regulated differently.
How the contracts get to market
Underdog offers event contracts through more than one channel:
- Aristotle Exchange DCM and Aristotle Exchange DCO: a Designated Contract Market and Derivatives Clearing Organization that Underdog acquired in 2026, giving it its own CFTC-registered exchange, sometimes referred to as “Underdog Exchange” or UDX.
- UDM, LLC (d/b/a Underdog Predict): a CFTC-registered Futures Commission Merchant that places trades on a registered DCM such as CDNA.
- Crypto.com Derivatives North America: a partnership, launched in December, where Underdog acts as a technology service provider connecting users to contracts listed on Crypto.com’s DCM as well as Kalshi and UDX.
In practice, this means a single trade placed inside the Underdog app could be executed on any of several underlying exchanges, depending on where that specific contract is listed and cleared.
Why “underdog” prediction markets and sports fans fit together
Underdog built its user base as a daily fantasy sports company, founded in 2020, and grew fast enough to reach unicorn status after a $70 million Series C round. That fantasy sports audience, largely NFL, NBA, MLB and WNBA players, is the same audience prediction markets are chasing, and it’s why Underdog’s move into event contracts is less of a pivot into a new customer base and more an extension of the same one into a new product wrapper.
Underdog also runs some of the most-followed sports accounts on X of any gaming operator, led by an NBA account with roughly 750,000 followers, plus dedicated NFL, MLB and WNBA accounts each over 200,000. Those accounts post real-time injury and roster updates rather than promotional content, and Underdog’s news director Jay Persson has described the strategy as building long-term trust with sports fans rather than buying short-term attention. That trust-building has become a direct funnel into prediction market signups.
Underdog vs. other prediction market operators
Underdog is not alone in moving sportsbook-style products onto exchange rails. Kalshi and Polymarket were early movers in the space, and several traditional betting operators have followed:
- DraftKings has acquired exchange infrastructure and launched its own prediction market product.
- FanDuel has launched an exchange-style offering as well.
- Fanatics has announced plans to enter the space.
- Robinhood has partnered with a derivatives exchange (SIG) on similar event contracts.
Exchange acquisitions across this group have reportedly closed at valuations north of $85 million including performance incentives, which gives a rough sense of how much operators are willing to pay to control their own regulated exchange rather than route trades through a third party.
Why prediction markets can operate where sports betting can’t
Event contracts fall under the jurisdiction of the Commodity Futures Trading Commission (CFTC), a federal regulator, rather than state gaming commissions. Because federal commodities law doesn’t map onto state-by-state gambling restrictions, prediction market operators have been able to offer sports-related contracts in states where traditional sports betting is not legalized.
That gap has not gone unchallenged. State regulators in multiple states have argued that sports-outcome contracts function like sports bets and should fall under state gambling oversight and licensing requirements, not federal commodities rules. Legal disputes between prediction market operators and state gaming regulators are ongoing, and the rules governing where and how these products can operate could shift depending on how those cases and any new CFTC guidance play out.
What changed with the Aristotle Exchange acquisition
Before acquiring Aristotle Exchange, Underdog operated purely as a broker, routing customer trades to third-party exchanges like Kalshi or Crypto.com’s DCM. That approach kept upfront costs low but gave Underdog little control over contract design, listing speed or fee structure.
Owning Aristotle Exchange DCM and DCO changes that. Underdog can now list its own contracts, set its own rules, and run a “transparent, rules-based marketplace” (its own description) without depending entirely on outside exchanges. CEO Jeremy Levine framed the deal as giving Underdog “greater flexibility, agility, and capability” to build sports-specific contracts, arguing that no other company understands how to build products for sports fans the way Underdog does.
The shift came at a cost internally. Underdog laid off 125 employees, about 20% of its workforce, in March as part of reallocating resources toward the prediction markets build-out, and it closed its lone sports betting operation in North Carolina in late 2025 as the company narrowed its focus.
Risks to understand before trading event contracts
- You can lose your full stake. Underdog’s own disclaimers state that trading involves significant risk and that customers risk losing the entire cost of entering a position, including fees.
- It’s not a recommendation service. Promotional content, social posts, and injury updates on Underdog’s channels are not trading advice, and any decision to open a position is the customer’s sole responsibility.
- Multiple regulators are involved. Depending on which exchange executes your trade, a Futures Commission Merchant, a Designated Contract Market, or a Derivatives Clearing Organization may be handling different parts of the transaction, each with its own oversight and dispute process.
- Terms include arbitration. Underdog’s terms of use include an agreement to arbitration and a waiver of certain legal claims, which limits how disputes over funds or account issues can be resolved.
- Eligibility rules apply. Users must be 18 or older, a U.S. resident, and located in a state where the specific product is available; availability varies by which DCM is powering a given contract.
Getting started
Anyone considering Underdog Predict should check three things first: current state availability (since it can change as legal challenges unfold), which specific exchange will clear a given contract, and the fee structure for that trade. Underdog publishes its regulatory disclosures and rules at legal.underdogpredict.com, and reviewing those documents before funding an account is the most direct way to understand which entity is actually holding and executing a given trade.
