What Is ProphetX?

Where ProphetX came from

ProphetX was founded in 2018 by Dean Sisun and Jake Benzaquen, with Sisun as CEO, out of a straightforward frustration: they wanted to trade in and out of a sports position the way a trader manages any other holding, rather than place a wager and wait for it to resolve. A sportsbook sets the line and profits when its customers lose; an exchange lets customers set the prices, match against each other, and exit early, earning a commission on the activity regardless of who's right. The company tested that model first under a UK peer-to-peer license.

The harder test was the United States. In August 2022, operating as Prophet Exchange, it launched in New Jersey as the first regulated peer-to-peer sports betting exchange to go live in the U.S. — a genuine first, and a genuinely difficult business, since an exchange only works with liquidity on both sides of every market, and bootstrapping that inside a single state's walled-off player pool is steep. In mid-2024 the company wound down its New Jersey operation and re-emerged as ProphetX under a sweepstakes model, a structure that let it operate across dozens of states without traditional gambling licensing while it pursued something more durable: a federal one.

The regulatory milestone: dual CFTC registration

ProphetX filed for both a Designated Contract Market (DCM) and a Derivatives Clearing Organization (DCO) registration with the CFTC in November 2025. The commission approved the DCO registration on June 10, 2026 and designated it a DCM the next day, June 11 — a rare dual registration that lets ProphetX list, trade, clear, and settle its own contracts end-to-end rather than routing settlement through a separate clearinghouse. It launched nationwide a week later, on June 18, 2026, opening with contracts on the 2026 FIFA World Cup, the U.S. Open golf championship, and the MLB regular season.

Most regulated venues hold only the first license and route clearing through a separate DCO. Holding both means ProphetX runs the entire pipe in-house — the difference between a company that operates the trading floor and one that also operates the settlement vault behind it. It's a similar instinct to the one that led Rothera to acquire an already-licensed exchange-and-clearinghouse rather than build one from scratch, though Rothera got there by buying an existing dual registration and ProphetX got there by earning its own.

How ProphetX is built

The defining design choice is the order book itself. Because ProphetX matches users against each other rather than against a house, it supports the back-and-forth a sportsbook structurally can't: you can post a price and wait for someone to take it, or take a price someone else has posted, and trade out of a position before the event resolves. You can be the maker or the taker, and the price on the screen is one other participants set — the same maker-taker logic that governs a stock exchange, applied to "will this team win."

Each contract is a familiar binary, Yes/No instrument that settles 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 — a contract at 60¢ is the crowd pricing the outcome at about 60%. ProphetX's signature feature layered on top of that is a proprietary Request for Quote (RFQ) Parlay Mechanism: instead of pricing a multi-leg parlay against a fixed house formula, a trader describes the combination they want and counterparties quote it back competitively — the same way an institutional trading desk sources a price for a custom position, applied to a product category that's historically carried some of the highest built-in margin on a traditional sportsbook.

What ProphetX lists

ProphetX is sports-only by design — it doesn't list election, economic, or entertainment contracts the way Kalshi and Polymarket do. Coverage spans baseball and basketball, soccer and international competitions, golf, tennis, and MMA, plus the multi-event combinations built through its RFQ parlay mechanism.

Because it's a betting exchange rather than an outcome-listing market, ProphetX's moneylines commonly track a single favorite-side contract per matchup rather than listing one contract for each team — the large majority of its moneyline events resolve to exactly one tradeable outcome. That's an inherent property of the peer-to-peer model, not a gap in coverage: the exchange only needs one side of the trade to carry the price, since a position against the favorite is simply the other side of that same contract.

The legal backdrop: betting on federal preemption

A federal green light isn't the end of the legal story for any of these venues, and ProphetX has been unusually vocal about which way it wants the law to break. When the CFTC moved to write formal rules for prediction markets, ProphetX welcomed the effort publicly, with CEO Dean Sisun framing it as a step toward workable federal standards that put consumer protection at the center of the market.

More pointedly, ProphetX has argued that the CFTC should use Section 4(c) of the Commodity Exchange Act to build a conditions-based framework for sports event contracts — a path the company contends would deliver direct federal preemption of conflicting state gambling laws. That's the central legal question hanging over every platform in this space: whether states can treat sports event contracts as gambling under their own statutes, or whether federal commodities law overrides them. The courts have split, and the matter is unresolved nationally. ProphetX isn't a bystander to that fight; it has staked its regulatory strategy on the preemption side of it. See prediction-market legality by state for the broader landscape this sits inside.

Where ProphetX sits in the field

It helps to place ProphetX among the wave of sports-facing CFTC exchanges that arrived through 2026, because each picked a different structural flank.

• Kalshi and Polymarket compete on breadth — economics, politics, weather, and culture alongside sports — and face traders directly on a house-run order book (or, for Polymarket, an on-chain one).
• Rothera is neutral wholesale plumbing that doesn't face the public at all; it's routed to by brokers like Robinhood.
• DKeX and Underdog both arrive attached to established consumer sports businesses with large audiences already in hand.
• ProphetX competes on market structure alone: a single-category, peer-to-peer exchange betting that a true exchange — traders pricing against each other, not against a house — is the better long-run design for a sports market.

Whether that focus becomes a durable edge or a ceiling is the open question, and it's exactly the kind of thing volume data answers over time. For how the two largest venues compare on regulation, settlement, and data, see Kalshi vs. Polymarket.

Company & funding

Privately held, incorporated in Delaware as ProphetX LLC. Backed by venture and proprietary-trading-firm investors including Parlay Capital, Data Point Capital, Chicago Trading Company, and MIXI Inc.

• Employees: ~79 employees on LinkedIn (self-reported profile count; LinkedIn lists an official size range of 51–200)Needs verification
• Originally founded and licensed in the United Kingdom in 2018 as a peer-to-peer marketplace for sports event trading, before establishing U.S. operations.
• Operated 2022–2024 as "Prophet Exchange," a New Jersey-only, state-regulated peer-to-peer sports betting exchange headquartered in Hoboken, NJ, before shutting down and relaunching first as a sweepstakes product, then as the CFTC-regulated ProphetX.
• Dual-registered with the CFTC as both a Designated Contract Market (DCM) and a Derivatives Clearing Organization (DCO) — lets it list, trade, clear, and settle its own contracts without a separate clearinghouse.

Funding

Total raised ~$45M$10M Series A (April 2023) + $35M 2026 round = $45M; independently corroborated by CB Insights' snapshot (Total Funding Raised $45M). ProphetX's own release does not state a running total or name the 2026 round.

Timeline

Regulatory status

ProphetX operates as a CFTC-regulated derivatives exchange and — unusually among prediction-market platforms — is dual-registered as both a Designated Contract Market (DCM) and a Derivatives Clearing Organization (DCO). That combination lets ProphetX list, trade, clear, and settle its own event contracts end-to-end rather than relying on a separate clearinghouse. The CFTC registered ProphetX LLC (a Delaware entity) as a DCO on June 10, 2026 and designated it a DCM on June 11, 2026, clearing the way for its nationwide consumer launch a week later.

• Sports-only by design. ProphetX limits its listed contracts to sports — it does not offer election, economic, or entertainment contracts, unlike broader-scope exchanges.
• A regulatory reboot, not a first attempt. ProphetX's predecessor, Prophet Exchange, operated as a state-licensed (New Jersey-only) peer-to-peer exchange from 2022–2024, shut down, relaunched under sweepstakes rules in 2024, and only reached direct CFTC oversight in 2026.
• Same federal framework, same open questions. Sports event contracts sit at the center of an active federal-vs-state preemption fight playing out across multiple platforms and courts. See our prediction-market legality overview and litigation tracker for the current state of play.

This is informational, not legal advice — the regulatory landscape changes week to week; verify current, location-specific status before relying on it.

Frequently asked questions