December 2025 will be remembered as the month the U.S. sports betting industry reconfigured itself. Three of the four largest sportsbook operators in the country—DraftKings, FanDuel, and Fanatics—each launched dedicated prediction market platforms within the same calendar month, all operating under CFTC federal oversight rather than state gaming regulation. The move was coordinated not by design, but by necessity: Kalshi and Polymarket had spent 2025 building a $44 billion global market while sportsbooks watched from the sidelines.
The launches were not incremental product extensions. They were structural bets on a different regulatory architecture—one that reaches all 50 states instead of roughly 30, generates 10–30% higher margins, and positions platforms as neutral exchanges rather than counterparties taking the other side of every bet. This article examines what happened, why it happened when it did, and what it means for every sportsbook operator not named DraftKings, FanDuel, or Fanatics.
Industry ShiftDecember 2025: The Month Three Sportsbooks Went Federal
The sequencing mattered. Fanatics moved first, launching Fanatics Markets in 24 states in early December 2025. The company had spent the preceding months acquiring the infrastructure needed: in July 2025, Fanatics purchased Paragon Global Markets, a CFTC-registered introducing broker, explicitly to enable the prediction market entry. The initial rollout covered 10 states, expanded to 24 within the same week. Fanatics Markets operates via Crypto.com | Derivatives North America (CDNA), a CFTC-registered exchange.
DraftKings followed on December 19, 2025, launching DraftKings Predictions as a standalone app in 38 states. The critical detail: 17 of those states had active sports markets, including California, Texas, Florida, and Georgia—four states where DraftKings cannot legally operate its traditional sportsbook. DraftKings built its CFTC structure internally, establishing a wholly-owned CFTC-registered Introducing Broker subsidiary, which signals a longer-term intent to control the exchange layer rather than depend on a third-party platform.
FanDuel came last, on December 22, 2025, via a partnership with CME Group, the world’s largest derivatives marketplace. FanDuel Predicts launched in five states—Alabama, Alaska, South Carolina, North Dakota, and South Dakota—before reaching all 50 U.S. states by early 2026.
| Operator | Product | Launch Date | Structure | States at Launch |
|---|---|---|---|---|
| Fanatics | Fanatics Markets | Early Dec 2025 | Acquired CFTC broker (Paragon) + CDNA exchange | 24 |
| DraftKings | DraftKings Predictions | Dec 19, 2025 | In-house CFTC-registered IB subsidiary | 38 (17 with sports) |
| FanDuel | FanDuel Predicts | Dec 22, 2025 | 50/50 rev split with CME Group | 5 → 50 (early 2026) |
The simultaneity was not coincidental. Each company had been watching Kalshi and Polymarket accumulate sports betting volume throughout 2025—volume that came directly from sports bettors already using sportsbooks. The December launches were as much defensive positioning as offensive expansion: preventing native prediction market platforms from converting their existing user bases before they could offer an alternative.
Fanatics CEO Matt King framed the category distinction deliberately, using the word “trades” rather than “bets” and describing prediction markets as “two-sided marketplaces” where traders face each other rather than the house. The language was intentional—a signal to regulators, users, and investors that this is structurally different from gambling, not merely a rebranded sportsbook product.
Market ContextThe $44 Billion Duopoly They’re Challenging
The market the sportsbooks entered in December 2025 was already dominated by two players. Kalshi generated $17.1 billion in total notional trading volume in 2025; Polymarket generated $21.5 billion. Together they controlled 97.5% of global prediction market volume—a near-total duopoly built while traditional sports betting operators were either legally prohibited from participating or simply not paying attention.
The sports dominance of prediction market activity is the critical insight. Kalshi launched as a platform for financial and political event contracts—interest rate decisions, election outcomes, economic data releases. By 2025, 90–91% of its volume was sports-related. The market self-organized around sports outcomes in a way that no one fully anticipated at launch. Polymarket shows a similar trajectory: historically crypto and politics-focused, it has been expanding aggressively into sports markets.
Kalshi set a single-week volume record of $2.3 billion in December 2025 during NFL season peak. The timing was not coincidental—that record week coincided with the month the three major sportsbooks launched their competing products, signaling exactly how much volume was already flowing through the channel the incumbents were now trying to capture.
The market the sportsbooks are entering is not nascent. Kalshi alone grew over 1,100% year-over-year in some volume metrics through 2025. Operators entering in December 2025 are not early movers—they are late-stage entrants into an already-structured market with established liquidity providers, user behavior patterns, and brand associations. The question is whether their distribution advantages and existing user relationships are enough to compete.
Business ModelWhy Prediction Markets Have Better Economics Than Sportsbooks
The business model difference is not a nuance—it is fundamental. Traditional sportsbooks profit when bettors lose. The margin (vig) is built into the pricing of every market; the house is structurally positioned against the customer. Prediction markets operate differently: the platform earns transaction fees on every trade and takes no position on outcomes. The exchange never profits from user losses; it profits from volume.
This distinction has several downstream consequences. First, prediction market platforms can offer structurally fairer prices than sportsbooks because they are not pricing in a house edge—the price is determined by market participants. Second, promotional intensity is structurally lower: sportsbooks spend aggressively on welcome bonuses and retention offers to offset the adversarial economics of the product; prediction market platforms do not face the same pressure because users who win keep coming back. Third, and most directly relevant to operator P&L: prediction market products are not subject to state gaming taxes.
DraftKings projects 10–30% higher adjusted gross margins on prediction market products versus traditional sportsbook, driven explicitly by the absence of state gaming taxes and lower long-term promotional spend. For an operator with $6.7 billion in 2026 revenue at the midpoint of guidance, a 10% margin improvement on a meaningful portion of that revenue is not a rounding error.
DraftKings’s March 2, 2026 Investor Day made the scale of the ambition explicit. The company announced a “Super App” strategy combining Sportsbook, Casino, Lottery, and Predictions into a single account and wallet, and projected a $10 billion annual gross revenue opportunity from prediction markets alone—on top of its $6.7 billion 2026 guidance from existing verticals. That $10 billion figure represents management’s view of the addressable market, not current revenue, but it frames how seriously the company is treating the category.
Regulatory LandscapeFederal vs. State: The Legal Fault Line Running Through the Industry
The regulatory arbitrage that makes prediction markets strategically valuable for sportsbook operators is also the source of the industry’s primary risk. Online sports betting is currently legal in approximately 30 U.S. states. CFTC-regulated prediction market products—operating under federal commodities law rather than state gaming law—are theoretically available in all 50 states. That gap represents tens of millions of sports fans in California, Texas, Florida, and Georgia who cannot legally place a bet on a sportsbook but can legally trade on a prediction market.
The 20-state access arbitrage is real, but so is the legal conflict. Eight or more states—Nevada, Arizona, Maryland, New Jersey, New York, Illinois, Ohio, Connecticut, and Massachusetts—have taken enforcement actions against Kalshi and Polymarket, arguing that these platforms operate as unlicensed gambling operations circumventing state gaming law. The core state argument: regardless of what federal law says, these products are functionally sports bets and must comply with state gaming regulation.
Courts are currently split. On February 19, 2026, a Tennessee federal court sided with Kalshi, ruling that CFTC jurisdiction preempts state gaming law for federally-registered prediction market contracts. Twelve days later, Nevada Superior Court granted a state injunction effective March 8, 2026, ordering prediction market operators to cease sports-related trading in Nevada pending further proceedings. Two different courts, two opposite outcomes, in the same month.
For sportsbook operators evaluating whether to launch prediction market products, the regulatory uncertainty cuts two ways. On one hand, a Supreme Court ruling affirming federal CFTC jurisdiction would cement nationwide distribution and represent a structural transformation of the addressable market. On the other hand, a ruling affirming state authority would restore the existing patchwork and significantly reduce the distribution advantage that makes prediction markets attractive in the first place. The window in which operators can build prediction market capabilities before the legal outcome is clear is narrow—and it is closing.
Competitive SignalsNovig, Sweepstakes Models, and the Challengers Behind the Challengers
The competitive landscape extending beyond the established Kalshi/Polymarket duopoly includes a fast-growing cohort of native prediction market startups that are not waiting for the Supreme Court or for major sportsbook operators to define the category.
Novig raised a $75 million Series B in February 2026, led by Pantera Capital and Multicoin Capital, at a $500 million valuation. Total capital raised exceeded $105 million. Novig operates a commission-free peer-to-peer sports prediction exchange and reported 10x trading volume growth in 2025. Its core user acquisition message is direct: users are 10 times more likely to win on Novig than on traditional sportsbooks. Whether or not that claim survives rigorous scrutiny at scale, it is a message that resonates with the core frustration that drives sports bettors to seek alternatives to sportsbooks.
ProphetX is pursuing a different regulatory workaround entirely—a sweepstakes model that sidesteps both state gaming law and CFTC oversight by structuring the product as a promotional sweepstakes rather than a financial contract. The sweepstakes approach has precedent in the social casino space; its application to sports prediction is less tested but illustrates how many different structural solutions the industry is attempting to navigate U.S. regulatory fragmentation.
The emerging competitive dynamic is more complex than it appears. The sportsbook incumbents (DraftKings, FanDuel, Fanatics) have brand recognition, existing user bases, and distribution advantages. But they are entering a market where the native players—Kalshi, Polymarket, Novig—have established liquidity, user behavior data, and product iteration cycles that pre-date the incumbents by years. Being large and well-capitalized is a meaningful advantage; it is not a sufficient one.
What It Means for OperatorsThe Strategic Implications for Every Sportsbook Not Named DraftKings
For operators outside the top three, the December 2025 launches are not background noise. They are a signal that the competitive landscape of U.S. sports betting is being fundamentally restructured, and that the window to build relevant capabilities is shorter than most planning cycles assume.
The geographic arbitrage is real and immediate. Any operator that can establish a CFTC-registered structure today can reach California, Texas, and Florida—three of the largest sports fan populations in the country—without waiting for state legislatures to act. Those markets are not hypothetically large; they are actively underserved by legal online betting today. Operators who establish presence, brand awareness, and user data in those markets while competitors are still navigating the regulatory question will have structural advantages that persist even if the legal landscape later shifts.
The margin math changes customer lifetime value models in ways that most operators have not yet rebuilt their analytics to reflect. Prediction market users generate 10–30% better margins, incur no state tax drag, and require lower promotional intensity to retain. That means existing CLV frameworks built around sportsbook economics overestimate the cost and underestimate the value of prediction market users. Operators whose analytics teams have not updated their models are making capital allocation decisions based on the wrong numbers.
The data layer is also structurally different. Prediction market trading data is more transparent than sportsbook data: trades are typically recorded on public ledgers or accessible via public APIs, with full trade history and probability trajectory available. This creates new analytical signals—sharp money tracking, probability trajectory analysis, cross-market line movement—that do not exist in the same form in traditional sportsbook data. Operators who understand how to build analytics on top of prediction market data will have informational advantages that compound over time.
Top of the First Inning: Where Prediction Markets Go From Here
Matt King’s framing is the right one: prediction markets are “top of the first inning on a market that’s going to grow exponentially over the next five to ten years.” The December 2025 launches are infrastructure bets. None of the products that launched that month are finished; all of them are first-generation implementations of a model that will be substantially different in 24 months.
DraftKings’s roadmap toward full vertical integration is the most instructive signal of where the industry is heading. The company’s stated plans include building an in-house exchange (operating as DCM, FCM, and DCO), rolling out the Railbird Exchange technology it acquired, and developing internal market making capabilities. The end state is owning the exchange layer entirely, not depending on a third-party CFTC-registered exchange as counterparty. That is a multi-year capital program, but it is the only path to capturing the full economics of the prediction market model.
The Supreme Court confrontation over state versus federal authority is the single most consequential event for the industry in the next 24 months. A federal victory cementing CFTC jurisdiction nationally would validate the entire premise of prediction market nationwide distribution and accelerate operator investment significantly. A state-favoring ruling would reopen the legal patchwork, reduce the distribution advantage materially, and force operators to rethink the calculus of prediction market investment. No operator can time that outcome, but every operator should be building capabilities today as if the federal outcome is the more likely one—because the CFTC regulatory posture, the federal court rulings so far, and the political environment under the current administration all point in that direction.
For mid-tier and regional sportsbooks, the strategic window is narrow and getting narrower. DraftKings’s $10 billion TAM projection and the Novig $500 million Series B valuation indicate that institutional capital has already determined this market is real and large. The first operators to build genuine prediction market capabilities—exchange mechanics, CFTC relationships, liquidity infrastructure, user acquisition framing, and analytics tooling—will accumulate the structural advantages that compound into unassailable incumbency. Waiting for the legal outcome before building is a choice, but it is a choice with a cost that will be measured in years of catch-up.
SourcesData Sources & References
- Gambling Insider: Prediction Market Statistics 2025 — $44B+ global volume, Kalshi $17.1B, Polymarket $21.5B, 97.5% combined share, 90–91% sports share
- National Law Review: Kalshi Posts Record Volumes — $2.3B weekly record, December 2025
- DraftKings: Predictions App Launch Release — 38 states, December 19, 2025, CFTC IB structure
- Fanatics: Fanatics Markets Launch Release — 24 states, early December 2025, CDNA partnership
- CME Group: FanDuel Predicts Launch Release — December 22, 2025, 50% revenue share structure
- DraftKings Investor Day, March 2, 2026 — Super App strategy, $10B prediction market TAM projection, 10–30% margin advantage
- Novig Series B announcement, February 2026 — $75M raise, $500M valuation, Pantera Capital and Multicoin Capital, 10x volume growth
- Tennessee federal court ruling, February 19, 2026 — CFTC preemption of state gaming law (Kalshi)
- Nevada Superior Court injunction, effective March 8, 2026 — state enforcement against prediction market operators