When DraftKings, Underdog, and Robinhood entered prediction markets, none of them started with their own exchanges. They used someone else's infrastructure — Kalshi, CME Group, and Crypto.com's CDNA — to list and clear their contracts. Then, one by one, they left. This page explains the structural logic behind that shift, what "building your own exchange" actually requires, and what it changes for your account.
User job this page answers: "I keep hearing that DraftKings, Underdog, and Robinhood are building their own prediction market exchanges. What does 'building your own exchange' actually mean, and what does it change for my account?"
A wrapper platform is a consumer app that lets you trade prediction market contracts — but where the contracts actually list and settle on a separately licensed exchange. The app is the interface; the licensed exchange is the counterparty infrastructure underneath.
When you traded on DraftKings Predictions in its first year, your contracts settled through CME Group or Crypto.com's CDNA exchange — not DraftKings' own infrastructure. DraftKings was the app; CME or CDNA was the regulated exchange beneath it.
| Platform | Infrastructure | What That Means |
|---|---|---|
| FanDuel Predicts | CME Group | FanDuel Prediction Markets LLC is registered FCM; contracts list on CME Group DCM |
| Coinbase | Kalshi | Coinbase Financial Markets FCM routes to Kalshi DCM; pursuing own CFTC exchange (The Clearing Company acquisition) |
| PrizePicks | Kalshi, Polymarket | Performance Predictions II, LLC (FCM) distributes from Kalshi and Polymarket DCMs |
| Sleeper | Kalshi | Routes event contracts through Kalshi DCM |
Infrastructure status subject to change. Confirm current exchange routing at each platform's official site.
Between late 2025 and mid-2026, three DFS-heritage platforms each acquired or built their own CFTC-registered Designated Contract Market (DCM) — eliminating their dependency on third-party exchange infrastructure.
| Platform | Previous Rail | Own Exchange | Exchange Entity | Consumer Launch | CFTC Basis |
|---|---|---|---|---|---|
| DraftKings | CME Group + CDNA | DKeX | Railbird Exchange LLC d/b/a DKeX | — | CFTC DCM |
| Robinhood | Kalshi (via ForecastEx clearing member) | Rothera | Rothera Exchange and Clearing LLC | June 4, 2026 | CFTC DCM + DCO |
| Underdog | CDNA (Crypto.com) | UDX | Aristotle Exchange DCM + DCO | — | CFTC DCM + DCO |
Consumer launch dates and rail transitions may shift. Verify current exchange routing at each platform's official site before trading.
DraftKings acquired Railbird Exchange LLC — a CFTC-registered DCM — in October 21, 2025. Railbird, doing business as DKeX, filed its first six CFTC event contract templates on —, with contracts initially listed on —. Consumer launch under the DKeX brand followed in —.
DKeX uses a template-based contract system covering GAMEWIN, GAMESPREAD, GAMEPROPERTY, ENTITYSTAT, ENTITYOUTPERFORM, and ENTITYACHIEVEMENT across 9 major sports. Each is a binary event contract with $1.00 notional value.
Robinhood acquired MIAXdx (formerly LedgerX) in a joint venture with Susquehanna International Group (SIG), deal announced November 25, 2025, closed January 21, 2026. The exchange was renamed Rothera Exchange and Clearing LLC on January 20, 2026. Robinhood's consumer prediction market product launched June 4, 2026.
Rothera holds both CFTC DCM designation (since the original LedgerX license, first issued 2019) and DCO registration — making it one of the few platforms with integrated exchange and clearinghouse under one entity. CFTC DCM filing
Underdog started prediction markets in September 2025 (prediction markets via CDNA partnership) via a partnership with Crypto.com Derivatives North America (CDNA). On March 9, 2026, Underdog acquired Aristotle Exchange DCM, Inc. and Aristotle Exchange DCO, Inc. — CFTC-registered since September 5, 2025 — and launched UDX on its own infrastructure in July 2026.
Source: Business Wire (Mar 9, 2026)
The shift from wrapper to owned exchange is driven by four structural economics — none of which have anything to do with the user-facing product changing.
Wrapper platforms pay the underlying exchange a cut on every contract — typically in exchange fees layered on top of the platform's own spread. Self-clearing eliminates that cost entirely. Every cent of exchange margin that previously flowed to Kalshi or CME now stays in-house.
Operating your own exchange means controlling the full order book, trade-level data, and price discovery. That data is competitively valuable — it reveals what your users are trading, how markets move, and where liquidity is forming. Wrapper platforms don't see it.
A wrapper platform lists whatever the host exchange approves. An owned DCM can self-certify new contracts in days — designing the question, the settlement source, and the market structure from scratch. That speed-to-market advantage compounds as more sports seasons and events go on-chain.
CFTC-licensed DCMs operate under a federal framework that preempts state-level sportsbook licensing in many circumstances. A platform that owns its DCM can enter new states or market categories without waiting for individual state gaming commission approvals — a structural advantage over competitors still on state-licensed rails.
Open positions during transitions: If your platform migrates from one exchange rail to another while you have open positions, check the platform's official communications for how open contracts will be handled. Generally platforms run transition periods; never assume mid-migration without reading official notices.
Not every platform has the scale or regulatory appetite to run its own DCM. FanDuel's FCM model via CME Group, Coinbase's routing through Kalshi, and PrizePicks' distribution across both Kalshi and Polymarket remain commercially viable — particularly for platforms where prediction markets are a secondary product line rather than the primary business.
The wrapper model has real advantages for smaller entrants: faster time-to-market, zero exchange compliance overhead, and access to established liquidity pools without the capital requirements of operating a registered DCM and DCO. The three breakaway platforms — DraftKings, Robinhood, and Underdog — shared a common thread: large existing user bases, DFS-native brand relationships with sports audiences, and the scale to justify the fixed cost of exchange ownership.
Coinbase's acquisition of The Clearing Company signals that the wrapper-to-exchange transition may continue. Whether FanDuel eventually follows a similar path depends on how Flutter Entertainment evaluates the exchange economics against its broader sportsbook strategy.
How the wrapper model works mechanically — exchange rails, FCMs, and DCMs explained
Visual map of which platforms use which exchange infrastructure
How UDX works, its Aristotle Exchange architecture, and what it means for sports traders
Three economic drivers: fee economics (owning the exchange means keeping the per-contract margin instead of paying it to Kalshi or CME), data ownership (the exchange controls trade-level data and price discovery), and product control (contract design, market structure, and settlement timing no longer depend on a third-party exchange). All three platforms were paying infrastructure costs they could eliminate by self-clearing.
Generally no for existing users — platforms typically run a transition period where old contracts settle on the original exchange rail while new contracts list on the in-house exchange. Specific transition terms vary by platform. Check your platform's official support pages for details on any open-position migration.
CFTC-registered DCMs (Designated Contract Markets) are subject to the same federal regulatory framework regardless of who operates them. DKeX (Railbird Exchange LLC), Rothera Exchange and Clearing LLC, and Aristotle Exchange DCM are each separately CFTC-registered — the same category of license held by Kalshi. CFTC DCM registration requires ongoing compliance with core principles on financial integrity, position limits, and customer protections.
