What Is Rothera?

Where Rothera came from

Rothera didn't start from scratch, which is much of why it could launch as a fully regulated venue so quickly. It was built on top of an existing CFTC-licensed exchange and clearinghouse rather than seeking fresh approval. The entity now called Rothera Exchange and Clearing LLC was previously LedgerX LLC — the first CFTC-registered exchange for digital-currency derivatives, a Derivatives Clearing Organization since 2017 — which most recently operated as MIAX Derivatives Exchange (MIAXdx). In January 2026, a joint venture between Robinhood and Susquehanna International Group acquired 90% of that business; MIAX retained the remaining 10%, Susquehanna serves as primary market maker, and on January 20, 2026 the entity's legal name changed to Rothera.

Buying an already-licensed exchange and clearinghouse is a well-worn path into this market — it's essentially the move Polymarket made to create its regulated U.S. arm, acquiring a licensed venue rather than waiting years for a fresh designation. A CFTC license is slow to earn and faster to acquire. Starting from MIAXdx handed Rothera both halves of the stack on day one: a venue that can list contracts and a clearinghouse that can settle them, with no third party in between.

How Rothera is built

Underneath, Rothera looks like a conventional financial exchange rather than a crypto-native or consumer product. It runs a price/time-priority central limit order book — the same matching logic a stock or futures exchange uses, where the best price posted first is filled first. It supports standard order types and the FIX protocol that institutional trading systems speak, and it trades around the clock with what it calls non-discriminatory "fair access."

The instruments themselves are familiar event contracts: binary, Yes/No contracts that settle at a fixed value if an outcome occurs and at zero if it doesn't. So the price still reads directly as the market's implied probability, exactly as it does on Kalshi or Polymarket — a contract at 63¢ is the market pricing the outcome at about 63%. (If that mapping is new to you, start with how to read prediction-market odds.)

Because Rothera is also the clearinghouse, it settles its own trades end to end. It describes its contracts as fully funded, held in segregated customer accounts, with no mutualized guarantee fund — meaning each position is backed by posted cash rather than by a shared default pool that participants top up. For an instrument that can only ever pay out a fixed, fully-collateralizable amount, that's a clean structural fit, and it's part of why the model can run without the margin machinery a futures clearinghouse needs.

Why it's different: it serves brokers, not traders

This is the part that genuinely sets Rothera apart, and it's easy to miss if you treat it as just another app.

Kalshi and Polymarket are vertically integrated. They run the exchange and face the customer directly — you trade on Kalshi, with Kalshi. Rothera deliberately splits those roles. It operates the exchange and the clearinghouse, but it does not take retail customers itself. Traders reach Rothera only through an intermediary broker — a Futures Commission Merchant (FCM) — that holds the customer relationship, the account, and the app. Rothera states plainly that customers interact with it exclusively through an FCM participant, and it frames the absence of channel conflict — a promise not to compete with its brokers for end customers — as the core of its pitch to the firms it wants to plug in.

Robinhood is the first and most visible of those brokers, and a part-owner through the joint venture. When Robinhood routes a customer's event-contract order to Rothera for matching, the customer sees Robinhood; the exchange and clearinghouse working in the background is Rothera. That mirrors how the established financial system is wired — brokers face the public, exchanges and clearinghouses sit behind them — rather than the consumer-app posture of Rothera's better-known rivals.

The strategic logic is worth spelling out, because it shapes what Rothera could become. Rather than fight Kalshi for retail attention head-on, Rothera positions itself as neutral infrastructure that many brokers could route through. If that bet works, its addressable market isn't traders — it's every broker that wants to offer event contracts without building an exchange and clearinghouse from scratch. The open question, and the one that will decide its scale, is whether FCMs beyond Robinhood adopt it.

What Rothera lists

Rothera's market mix tilts toward two categories the public record substantiates: sports and economic data. Among its first self-certified contracts — the filings an exchange makes to the CFTC to list a product — were U.S. weekly initial jobless claims, the Core PCE price index (the inflation gauge the Federal Reserve watches most closely), and professional baseball game outcomes. That pairing is telling: a high-frequency sports product to drive volume, and serious macroeconomic contracts of the kind institutions actually hedge or trade around.

Its marquee launch was soccer. Rothera filed a broad set of 2026 World Cup event contracts spanning match winners, spreads, totals, and tournament outcomes — from tournament winner and Golden Boot to group-stage qualification, individual match winners, total-goals lines, and both-teams-to-score markets. Football, tennis, and basketball have followed. Political-outcome contracts have been certified with the CFTC but are not yet trading, and crypto event contracts have not yet been listed.

The Robinhood context: a "supercycle" bet

You can't read Rothera without reading Robinhood's ambitions for it. Event contracts have become one of Robinhood's fastest-growing product lines, and the company has framed prediction markets as entering a "supercycle" it expects to drive enormous volume over time. Rothera is the infrastructure play beneath that rhetoric. By owning the exchange and the clearinghouse rather than renting access to someone else's, Robinhood controls execution, clearing, and the speed at which it can list new products — and it captures exchange economics it would otherwise pay away.

The World Cup was the chosen proving ground. Beginning June 4, 2026, Robinhood started routing World Cup event contracts to Rothera for matching — the first time it sent this order flow to its own venue rather than a third-party exchange. A 48-team, 100-plus-match global tournament is about as much concentrated event-contract demand as exists, which is precisely why Robinhood called it "the perfect event to launch Rothera": a live-fire test of whether the exchange could carry real volume.

Where Rothera sits in the field

It helps to place Rothera against the venues it's compared to, because the differences are structural rather than cosmetic.

• Kalshi is a centralized, CFTC-regulated exchange that faces retail directly and has become the U.S. volume leader, driven heavily by sports. It is the closest thing to a default.
• Polymarket is a large on-chain market settled in the USDC stablecoin, known for deep political and breaking-news books, with a separately regulated U.S. arm in Polymarket US.
• Rothera shares Kalshi's regulatory shape — a CFTC exchange settling in dollars — but inverts the business model. It doesn't court the public at all. It is the wholesale exchange-and-clearing layer that brokers route into.

So the useful framing isn't "Rothera versus Kalshi" as competing destinations. It's that Rothera is betting the next phase of growth comes from brokers wanting event contracts as a feature, and is positioning itself as the rails underneath them. Whether that's a smarter bet than owning the customer directly is the genuinely open strategic question in this corner of the market. (For how the wider regulatory backdrop shapes all of this, see prediction-market legality by state, and for the two best-known venues head to head, Kalshi vs. Polymarket.)

Company & funding

A product of Robinhood Markets, Inc. & Susquehanna International Group (independent joint venture; Miami International Holdings retains a 10% minority stake).

Independent joint venture controlled by Robinhood Markets, Inc., in partnership with Susquehanna International Group (a major options market maker). The JV holds 90% of the underlying exchange; Miami International Holdings (MIAX) — the prior owner — retained the other 10% as part of the sale. The internal Robinhood/Susquehanna split within that 90% is not publicly disclosed.

• Originally chartered as LedgerX LLC — the first CFTC-approved Derivatives Clearing Organization (DCO) and Swap Execution Facility (SEF), trading its first fully-collateralized Bitcoin options in October 2017 (Katten Muchin Rosenman LLP; CFTC press release 7592-17).
• Acquired by FTX.US in October 2021 and rebranded FTX US Derivatives; survived FTX's November 2022 bankruptcy as a segregated, fully-collateralized entity and was sold out of the Chapter 11 estate to Miami International Holdings (MIAX) in a bankruptcy auction (~$50M, announced April 2023, closed May 2023) and rebranded MIAX Derivatives Exchange (MIAXdx).
• The exchange's CFTC DCM + DCO registration has carried unbroken through the LedgerX → FTX US Derivatives → MIAXdx → Rothera chain; it also holds a currently-dormant SEF registration (rothera.io/about-us).
• Legal name formally changed from LedgerX LLC to Rothera Exchange and Clearing LLC on 2026-01-20, concurrent with the JV's acquisition closing.
• Self-reported (not independently verified): Rothera and its exchange-tech vendor Adaptive stated the platform processed roughly $3B in event-contract volume in its first two months live and was nearing ~10% of US event-contract market share, as of a July 15, 2026 report (FinanceFeeds) — treat as a company-disclosed figure, not an audited one.

Timeline

Regulatory status

Rothera Exchange and Clearing LLC is registered with the Commodity Futures Trading Commission as both a Designated Contract Market (DCM) and a Derivatives Clearing Organization (DCO), and additionally holds a currently-dormant Swap Execution Facility (SEF) registration. That dual DCM+DCO registration has carried forward, unbroken, since the entity's original CFTC approvals as LedgerX — DCO and SEF registration in July 2017, Designated Contract Market registration in June 2019 — through its time as FTX US Derivatives and MIAX Derivatives Exchange (MIAXdx) — rather than being newly granted to Robinhood. All contracts are fully collateralized.

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