Markets

    Underdog Launches UDX, Its Own CFTC-Regulated Prediction Market Exchange

    On July 17, 2026, Underdog CEO Jeremy Levine unveiled UDX — the company's own CFTC-registered Designated Contract Market and clearinghouse built on Aristotle Exchange. Here's what it means for prediction market traders.

    By Prediction Markets US News DeskSunday, July 19, 20268 min read
    Underdog Launches UDX, Its Own CFTC-Regulated Prediction Market Exchange

    When Jeremy Levine, CEO of Underdog Sports Holdings, appeared on CNBC's The Exchange on July 17, 2026, he had a concise pitch: Underdog isn't renting infrastructure anymore.

    The announcement formalized the launch of UDX — Underdog's own CFTC-registered Designated Contract Market (DCM) and Derivatives Clearing Organization (DCO). Built on the Aristotle Exchange entities Underdog acquired in March, UDX marks the first time a company whose reputation was built entirely in daily fantasy sports now operates its own federally regulated prediction market exchange.

    That distinction matters more than it might initially seem. The difference between running your markets on someone else's exchange and owning the exchange yourself is the difference between being a tenant and being a landlord — and in regulated derivatives, the landlord captures economics, product control, and strategic flexibility that tenants don't get.

    What Is UDX?

    UDX is Underdog's branded name for its self-operated prediction market exchange. The underlying infrastructure consists of two CFTC-registered entities:

    • Aristotle Exchange DCM, Inc. — a Designated Contract Market, the exchange where trades are listed and executed
    • Aristotle Exchange DCO, Inc. — a Derivatives Clearing Organization, the clearinghouse that settles and guarantees trades

    Both entities have been registered with the CFTC since September 25, 2025. Underdog acquired them on March 9, 2026.

    The FCM layer sits on top: UDM LLC, d/b/a Underdog Predict, which has been NFA-registered since January 9, 2026. This is the entity a trader interacts with — it accepts deposits, routes orders, and handles customer-facing compliance.

    Together, these three layers — DCM (listing), DCO (clearing), FCM (customer access) — form what the industry calls a vertically integrated exchange stack. Underdog now owns all three.

    The Aristotle Acquisition: How Underdog Built This Stack

    Underdog didn't build UDX from scratch. The path ran through Aristotle International, which had already done the heavy regulatory work.

    In September 2025, the CFTC approved Aristotle Exchange DCM, Inc. and Aristotle Exchange DCO, Inc. as a Designated Contract Market and Derivatives Clearing Organization, respectively. Those approvals granted Aristotle the legal authority to list and clear event contracts — the same category of instrument operated by Kalshi and QCX LLC (Polymarket US).

    On March 9, 2026, Underdog announced it had acquired both Aristotle Exchange entities. The strategic logic was clear: rather than spending years navigating CFTC exchange applications from scratch — a process that consumed significant time and resources for earlier entrants — Underdog purchased a company that already held the required registrations.

    The Aristotle company separately retains ownership of PredictIt, which operates under its own CFTC no-action letter — a different regulatory track from the exchange registrations Underdog acquired.

    What You Can Trade on Underdog UDX

    UDX launches with a sports-first focus. Available market types at launch include:

    Market TypeDescription
    MoneylinesWhich team or player wins outright
    SpreadsWinning margin markets
    TotalsCombined score over/under
    ParlaysMulti-leg combined entries

    Initial sports coverage includes baseball and basketball. NFL season markets are confirmed for expansion in fall 2026 — the highest-volume prediction market window of the year.

    Fees: $0.02 per contract, a flat fee built into the entry price. This is structurally simpler than the percentage-based maker/taker models used by some other regulated exchanges — where fees scale with the size of the trade, a flat-rate structure can favor larger entries.

    State availability: Underdog is available in 49 states, Washington DC, and Canada (excluding Ontario), per the official platform as of July 18, 2026. Specific product eligibility by state varies; confirm at underdogfantasy.com before trading.

    You can compare Underdog's current markets with other regulated platforms at PredictionMarkets.US or read the full Underdog platform guide.

    Why the Infrastructure Distinction Matters

    Before UDX, Underdog operated its prediction markets through CDNA (Crypto.com Derivatives North America), a third-party DCM. That made Underdog an FCM tenant — a customer-facing company plugged into someone else's exchange infrastructure.

    The FCM-tenant model is a legitimate way to enter the market quickly, but it comes with structural limits:

    1. Product control: An FCM tenant's ability to list new market types or adjust contract specifications depends on the host DCM's timeline and priorities.
    2. Economics: Using third-party clearing infrastructure means sharing the economics of each trade with the infrastructure provider.
    3. Strategic dependence: If the host DCM changes its terms, product scope, or fee schedule, the tenant absorbs the change.

    By acquiring Aristotle Exchange's DCM and DCO, Underdog breaks all three constraints. It can now list any event contract it is legally permitted to offer, clear it in-house, and retain the full economics of the trade.

    This is the same vertical integration model that Kalshi built from its founding — and that has allowed Kalshi to move into new market categories like AI compute futures, weather contracts, and financial indicators on its own timeline without waiting on a third-party exchange.

    Note: As of July 18, 2026, legal disclaimers on the Underdog platform still reference CDNA as the DCM for event contract trades. The operational migration to the Aristotle DCM infrastructure is a technical transition that takes time to complete. Traders should verify which entity is executing their trades via the platform's current legal disclosures at underdogpredict.com.

    Underdog UDX vs. the Competition

    The regulated US prediction market space now has multiple exchange infrastructure layers, and UDX is among the newest entrants at the top level:

    ExchangeInfrastructureSports Markets
    KalshiSelf-operated DCM + DCOYes (+ politics, macro, finance)
    QCX LLC (Polymarket US)Self-operated DCMSports only (US users)
    Underdog UDXAristotle Exchange DCM + DCOSports + parlays (NFL expansion fall 2026)
    FanDuel PredictsCME Group railSports
    DraftKings PredictionsCDNA / CME GroupSports
    CoinbaseKalshi railSports
    RobinhoodKalshi / ForecastEx / RotheraSports

    Underdog is now one of only three regulated prediction market operators in the US that owns both its DCM and DCO. Kalshi and QCX LLC are the other two. Earlier entrants in that group required multi-year regulatory approval timelines from the CFTC. Underdog compressed that path by acquiring an already-approved entity.

    From a fee structure standpoint, Underdog's $0.02 flat per-contract fee differs meaningfully from percentage-based models. For context, QCX LLC (Polymarket US) charges 0.30% of the contract value as a taker fee on winning shares. On larger-dollar entries, a flat fee can create a lower effective rate than a percentage cut — which could appeal to traders sizing up their positions.

    What Comes Next for UDX

    The immediate focus is NFL. Fall 2026 NFL markets have been confirmed as the next major expansion, and NFL season — running September through February — is historically the highest-liquidity period for sports prediction markets across every major platform.

    Over a longer horizon, owning a DCM and DCO opens a broader strategic menu. Kalshi began as a sports and political exchange and has since expanded into financial macro contracts, AI-linked markets, and weather. Whether Underdog pursues that kind of expansion depends on regulatory strategy and commercial demand — but the infrastructure to do it now exists.

    The FCM-to-self-clearing migration timeline will also be worth watching. Once the CDNA reference disappears from Underdog's legal disclosures and Aristotle Exchange DCM appears in its place, the exchange transition will be operationally complete.

    Explore all regulated prediction market platforms and their current markets at PredictionMarkets.US.

    Frequently Asked Questions

    What is Underdog UDX? UDX is Underdog's own CFTC-regulated prediction market exchange. It operates through Aristotle Exchange DCM, Inc. (the exchange) and Aristotle Exchange DCO, Inc. (the clearinghouse), entities Underdog acquired on March 9, 2026. The customer-facing FCM is UDM LLC, d/b/a Underdog Predict, NFA-registered since January 9, 2026.

    Is Underdog UDX federally regulated? Yes. Aristotle Exchange DCM, Inc. is a CFTC Designated Contract Market, and Aristotle Exchange DCO, Inc. is a CFTC Derivatives Clearing Organization. These are the same regulatory designations held by Kalshi. UDM LLC is a CFTC-registered FCM and NFA member.

    What sports can I trade on UDX? At launch, UDX covers baseball and basketball with moneyline, spread, total, and parlay markets. NFL season expansion was confirmed for fall 2026.

    What states is Underdog UDX available in? Underdog is available in 49 states, Washington DC, and Canada (excluding Ontario) as of July 18, 2026. Specific product eligibility by state may vary; check underdogfantasy.com to confirm what's available where you live.

    How does Underdog UDX's fee structure compare to other platforms? Underdog charges $0.02 per contract — a flat fee built into the entry price. Some other regulated platforms use percentage-based maker/taker structures. A flat-rate model can create a lower effective fee on larger entries compared to percentage-based alternatives.

    What happened to Underdog's previous CDNA infrastructure? Before UDX, Underdog's prediction markets ran on CDNA (Crypto.com Derivatives North America) as the host DCM. With the Aristotle acquisition, Underdog is migrating its exchange operations in-house. As of July 18, 2026, legal disclosures still reference CDNA; the operational migration is ongoing.

    Conclusion

    Underdog's UDX launch is more than a product announcement — it is an infrastructure statement. By acquiring Aristotle Exchange and assembling a self-clearing DCM + DCO stack, Underdog has moved from operating as a tenant on a third-party exchange to becoming the operator of its own.

    For a company whose roots are in daily fantasy sports, that is a significant regulatory and strategic milestone. The prediction market landscape now has another vertically integrated exchange competing for the same trader base.

    For current odds on all regulated US prediction markets, visit PredictionMarkets.US.

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