Prediction Markets Under Pressure: Record World Cup Volumes Meet Legal Battles

The world of prediction markets is currently navigating a period of extreme contrast, defined by unprecedented financial success and severe regulatory backlash. Operators in the sector reported record engagement during the 2026 World Cup, yet this commercial triumph has only served to sharpen the focus of lawmakers and courts. In the United States, a fundamental dispute is raging over the legal nature of these platforms: are they legitimate financial derivative markets or simply unlicensed gambling operations? This week, Washington state became a primary battlefield, securing legal victories that could redefine the industry's future.

A local judge in Washington granted a preliminary injunction against Kalshi, agreeing with state officials that the company's event contracts likely violate state gambling statutes. The ruling was a significant blow to the industry's argument that these products should be governed solely by federal commodity regulations through the CFTC. Shortly after, Crypto.com’s platform, OG, filed its own preemptive lawsuit to prevent similar enforcement actions. This legal tension underscores a growing divide between modern digital financial products and traditional gambling oversight.

Numbers and facts

Despite the legal uncertainty, the sheer volume of trading is staggering. The 2026 World Cup acted as a massive engine for growth. Kalshi reportedly saw a trading volume of approximately $27 billion during the tournament, attracting three million new users. The specific market for the eventual World Cup winner alone accounted for $1.9 billion in trades. According to TickerTracker, individual soccer matches excluding parlays saw $13.8 billion in activity, with Argentina and Lionel Messi emerging as the primary drivers of consumer interest.

Polymarket also reported massive engagement, with its international and U.S. operations combining for roughly $14.3 billion in volume. Analysis from H2 Gambling Capital highlights the rapid market shift: prediction markets represented 27 percent of comparable U.S. sports betting activity during the World Cup. This is a massive increase from the beginning of 2026, when the sector held only a 9 percent share. The overlap between traditional sportsbooks and these new financial platforms is becoming impossible for regulators to ignore.

Background

The political climate surrounding prediction markets is becoming increasingly hostile. During a hearing held by the House Agriculture Subcommittee, industry stakeholders clashed over the integrity and classification of sports event contracts. Gaming industry representatives argued that these markets are essentially sportsbooks operating without the burden of state taxes, licensing fees, or responsible gambling mandates. They warned that allowing these platforms to operate outside traditional gambling frameworks undermines tribal gaming rights and state revenue.

Meanwhile, the Wisconsin Elections Commission issued a stark warning regarding election-based contracts. They stated that state law is clear about financial interests in election outcomes. Anyone participating in such trades could face felony charges if they also vote in that election, as it constitutes an illegal wager under existing statutes. This highlights the varied legal risks that users face depending on their local jurisdiction.

"The Wisconsin Elections Commission warned residents that trading election prediction contracts could expose them to felony charges if they subsequently vote in the same election. The commission said that Wisconsin law is 'relatively clear' in disqualifying voters who have a financial interest in a bet on the outcome." - Wisconsin Elections Commission, Official Statement

Why it matters for German players

For bettors in Germany, the rise of prediction markets serves as a reminder of the importance of the Interstate Treaty on Gambling 2021 (GlüStV 2021). These types of event contracts are currently not permitted under the strict German regulatory framework unless they hold a specific license from the GGL. German players should remain cautious of international platforms that lack a GGL license, as they do not offer the protections required by law, such as the 1,000 Euro monthly deposit limit monitored by LUGAS or the one-euro per spin limit for virtual slots. Using unlicensed sites also means no access to the OASIS self-exclusion system, leaving players vulnerable.

Events in Ireland demonstrate that European regulators are starting to take action. Kalshi and Polymarket recently exited the Irish market following warnings from the Gambling Regulatory Authority of Ireland. This suggests that the legal net is tightening globally. For German consumers, the safest path remains using only those providers listed on the official GGL white-list to ensure legal compliance and player safety.

What it means for GGL-licensed casinos

Licensed German operators can view the chaos surrounding prediction markets as a validation of the regulated model. While U.S. companies struggle with lawsuits and accusations of providing a back-door for unregulated gambling, GGL-licensed casinos operate within a clear, transparent framework. The potential for prediction markets to drain volume from traditional sportsbooks is a real concern, but the high barriers to entry in Germany provide a protective moat. Licensed operators should continue to emphasize their commitment to integrity and player protection, qualities that these new, volatile markets often struggle to prove to regulators.