Mizuho says prediction market court rulings could affect DraftKings’ stock

Dig Deeper

The Backstory

Prediction markets move from side issue to stock catalyst

DraftKings’ exposure to prediction markets has become a material investor issue because the category sits at the intersection of sports betting, derivatives law and state gaming regulation. Mizuho’s view that court rulings could affect DraftKings’ stock reflects a shift in how Wall Street is valuing the company: not just as a sportsbook and iGaming operator, but as a business whose earnings trajectory may be influenced by whether event contracts remain available in sports.

The concern is straightforward. Prediction market operators such as Kalshi and Polymarket have created products that resemble sports wagering in consumer experience but operate under a different federal framework. If those products can continue to reach customers in states where online sports betting is restricted or illegal, they could compete for handle and attention without the same state tax burdens or licensing costs borne by sportsbooks. If courts or Congress narrow their scope, the threat to DraftKings and other incumbents would likely recede.

That is why Mizuho’s share-price analysis is tied less to one quarter’s results than to legal sequencing. DraftKings has already fallen sharply this year, and the bank expects the company to spend heavily to defend market share. But the same legal overhang that pressures the stock could become an upside catalyst if sports event contracts are curtailed.

DraftKings chose entry over abstention

DraftKings did not remain on the sidelines. The company’s strategic posture changed when it launched DraftKings Predictions without Railbird, using CME Group rather than immediately relying on the prediction-market firm it had acquired. The rollout covered 38 states and the District of Columbia, including major states without legal sports betting such as California, Georgia and Texas.

The structure of that launch illustrated the regulatory tightrope. DraftKings offered full sports event contracts in 17 states but a reduced, non-sports portfolio in Washington, D.C., and 21 states. It also blacked out a group of jurisdictions where regulators were more unsettled or hostile, including Nevada, Ohio, Pennsylvania and Tennessee. The company framed the product as federally overseen by the Commodity Futures Trading Commission, while pledging to extend responsible-gambling-style tools into what it called responsible trading.

The launch also followed DraftKings’ departure from the American Gaming Association, underscoring an industry split. The AGA has opposed prediction markets on the grounds that they operate outside the state-by-state gambling framework, lack comparable responsible gambling mandates and do not pay state gaming taxes. FanDuel also left the group as it explored the category, signaling that the largest online sportsbook operators were unwilling to let event-contract specialists define the market alone.

DraftKings’ decision created a hedge. If prediction markets survive legal challenges, the company wants to be positioned to compete. If courts restrict sports event contracts, the pressure from pure-play rivals could diminish and DraftKings’ core sportsbook business could benefit. That dual outcome is central to the current investor debate.

Courts and regulators are setting the timetable

The unresolved question is whether sports outcomes can be treated as event contracts under the Commodity Exchange Act or whether they are wagers subject to state gaming law. The answer is being tested across jurisdictions, with states, tribes and market operators pursuing different theories.

Legal analyst Daniel Wallach, in a briefing summarized by Jefferies, said Flutter and FanDuel were effectively constrained by legal uncertainty, even as Kalshi gained room to operate. Wallach identified three likely paths: Congress could amend the Commodity Exchange Act to exclude sports betting, the Supreme Court could resolve the issue or lower courts could settle on a consistent distinction between swaps and wagers.

That uncertainty creates asymmetric incentives. Kalshi benefits from delay because ambiguity allows it to enter markets where sportsbooks cannot operate without state approval. Traditional operators, by contrast, must consider relationships with regulators, tribal stakeholders and lawmakers. A licensed sportsbook that moves too aggressively could jeopardize future legalization efforts in states where it wants access.

Different lawsuits also present different risks. Nevada has focused on state authority. Massachusetts has challenged whether Congress intended for sports betting to be conducted through event contracts. California tribes have raised tribal exclusivity and Indian Gaming Regulatory Act issues. Geofencing has become a practical and legal pressure point because sportsbooks already comply with location limits, while prediction markets have argued that such restrictions would undermine their model.

Mizuho’s latest view that a Supreme Court review is unlikely this year, with 2027 the earliest realistic window, fits that broader timeline. Appeals need to develop, conflicting rulings may need to emerge and a case must present the right question. Until then, investors are left pricing both the cost of competition and the possibility that courts sharply limit it.

Wall Street sees both threat and optionality

Analysts have not treated prediction markets as a simple negative for incumbent sportsbooks. Jefferies analyst David Katz warned that prediction markets face backlash risk because they benefit from an enforcement-light CFTC regime while avoiding many of the obligations imposed on state-regulated gambling.

Katz highlighted a sharp contrast: gaming operators face intensive licensing reviews, substantial state fees, taxes that can reach 10% to 50% of revenue and mandated responsible gambling safeguards. Prediction-market operators face lower entry costs and fewer statutory customer-protection requirements. Controls offered by platforms may be voluntary rather than required by law, creating political risk if consumers suffer losses or if the products are viewed as sports betting by another name.

That risk cuts in several directions. If regulators tighten the framework or courts rule against sports event contracts, Kalshi-style competition could be forced back. That would support DraftKings and FanDuel’s existing state-regulated model. If sports event contracts are upheld, however, scaled operators such as DraftKings and Flutter could use their brands, databases, technology and media partnerships to compete effectively against smaller entrants.

Jefferies therefore saw a potential win-win for the largest sportsbooks: either the disruptive channel is limited, or it is legalized in a way that allows incumbents to bring scale. For DraftKings, Mizuho’s estimate of roughly US$300 million in spending this year to respond to prediction-market competition is the near-term cost of keeping that option open.

Operators split on whether the market expands or cannibalizes

The debate has played out in earnings calls across the gaming sector. Executives have alternated between denunciation, caution and opportunism, reflecting different business models and exposure.

BetMGM Chief Executive Adam Greenblatt was among the sharpest critics, arguing that event-contract platforms were driving up acquisition costs and functioning as sports betting companies under another label. In a roundup of earnings commentary, operators ran the gamut on prediction markets, with some dismissing the risk and others treating the category as a new channel for younger customers.

Caesars emphasized its lower reliance on broad promotional spending because of its Caesars Rewards database. Rush Street Interactive said it had seen limited cannibalization. Kambi acknowledged risk to some clients but also saw a potential path to broader engagement. Sportradar was more enthusiastic, describing prediction markets as a way to expand the total addressable market by reaching states and customers unavailable to sportsbooks.

Those views frame the central strategic question for DraftKings. Prediction markets may bring new money into sports-adjacent trading, especially among consumers comfortable with financial apps. But they also may bid up marketing costs, blur regulatory boundaries and capture demand that would otherwise flow to sportsbooks.

The financial-app angle is already visible. Mizuho separately found that Robinhood may benefit more than Coinbase from prediction markets because its users were more likely to fund activity with new money rather than by selling existing assets. The survey suggested strong overlap between trading-app users and prediction-market interest, particularly in economic, political and sports outcomes. That matters for DraftKings because competition may come not only from betting brands but also from consumer finance platforms with large, active user bases.

The stakes run beyond one company

The legal outcome will shape how much of sports betting remains under state control. States have built online sports wagering regimes around licensing, taxation, geolocation, integrity rules and responsible gambling. Prediction markets challenge that architecture by asserting federal derivatives oversight as the controlling regime.

For DraftKings, the stakes are both defensive and offensive. A broad green light for sports event contracts could expand access to states that have resisted online sports betting, but it would also invite competition from platforms with lighter cost structures. A restrictive ruling would protect the state-regulated sportsbook model but could limit DraftKings’ own ambitions in event contracts.

That tension explains why court rulings are now part of the DraftKings investment thesis. The company is spending to respond to a market that may either be legitimized, curtailed or reshaped by compromise. Until the legal framework is resolved, investors are likely to treat prediction markets as both a drag on near-term margins and a possible source of long-term optionality.