The World Cup Made Prediction Markets Mainstream. The Courts Will Decide What That Means.

Kalshi traded a record $9.4 billion in June, up from $5.3 billion in May, with daily volume running above $1 billion since the tournament began (DefiLlama data, via CNBC). Its World Cup winner market alone has traded more than $800 million, and individual knockout matches have pulled in over $48 million each. Through the July 19 final at MetLife, Kalshi is also the official prediction market sponsor of the House of GOAL festival in Brooklyn, with live markets on screens next to live matches.

That matters because it marks a visible change in where the category now sits.

Prediction markets are no longer just a niche internet product or a policy-adjacent curiosity. They are showing up alongside the biggest sporting event on the planet, in ordinary consumer settings, with real volume behind them. When earlier pieces argued that Kalshi was becoming infrastructure, this was the next phase of that idea: not only institutional relevance, but mainstream familiarity.

That is a meaningful shift. It also sharpens the one question that matters most for the category from here.

The Volume Is Real. So Is the Legal Fight.

The growth is not happening in a legally neutral category.

Sports contracts account for the overwhelming majority of Kalshi’s activity, and sports is exactly where the dispute over jurisdiction remains. States argue that these contracts are sports betting in substance and should fall under state gaming law. Kalshi argues that they are swaps traded on a CFTC-regulated exchange and therefore fall under federal jurisdiction. Both sides have won rounds.

That is the landscape as it stands.Kalshi's wins are the big ones: in April the Third Circuit became the first federal appellate court to rule on the question, holding that Kalshi's sports contracts are swaps under the Commodity Exchange Act and that federal law preempts New Jersey's gambling laws — a preliminary ruling, not a final one, but a landmark. The CFTC has also moved decisively onto Kalshi’s side, suing multiple states to defend its authority and publicly signaling that it is prepared to keep pressing the point.

But the dispute is not over. Other courts have ruled differently at various stages. Nevada remains the clearest active point of resistance. Washington still presents legal risk. More than 30 states have lined up behind the view that state gaming authority should reach these markets. A Ninth Circuit ruling is expected this summer, and an adverse decision there could create a circuit split that pushes the issue closer to the Supreme Court.

This is not a minor background issue anymore. It is one of the central forces shaping the category.

Why the Fight Strengthens the Case

The instinctive reaction is to treat this legal uncertainty as a reason for caution. That is understandable, but it is also incomplete.

The more important point is that Kalshi is not operating in the shadows or trying to slip through a gray zone unnoticed. It is a CFTC-designated exchange litigating an open question of federal law with its regulator actively backing it. That is a very different kind of risk from a company operating without regulatory standing and hoping enforcement never arrives.

Infrastructure categories rarely become durable by avoiding foundational legal questions. They become durable by forcing them to be answered.

That is what is happening now.

In that sense, the current conflict is not only a source of risk. It is also the mechanism through which the category can become more defined. The real barrier for larger pools of capital is often not a bad answer in one state. It is unresolved ambiguity across the whole market. A clean federal framework, or a Supreme Court-level answer, would move prediction markets from contested to legible. That transition matters more than a temporary wave of uncertainty. Kalshi is the company making that clock run.

The Sports Story Is Only the Front Door

The World Cup is what made the category visible this summer, but it is not the whole business.

Underneath the sports volume, Kalshi has been building a more institutional layer that does not depend on the same legal flashpoints. Its data is being used by financial institutions. Its event contracts are appearing in more institutional workflows. Economic outcomes are increasingly being hedged directly rather than through imperfect proxies. This is the part of the business that looks less like sports betting and more like a new market utility for pricing real-world events.

That distinction matters.

Sports is the user-acquisition engine. It is the fast, legible front door that introduces the product to a large audience. The deeper business is the infrastructure layer beneath it: economic contracts, institutional distribution, policy relevance, and event-based hedging that traditional products do not always express well.

That is the layer that looks most durable. And it is also the layer least threatened by the claim that Kalshi is simply a betting app in disguise.

Why This Matters for T-Kalshi

This is the backdrop for T-Kalshi.

The thesis behind T-Kalshi has never been that the company will only succeed if sports contracts sail through without resistance. The more durable thesis is that prediction markets are becoming a real market category, that Kalshi is the clearest leader in that category, and that the most important institutional and legal work is happening while the company is still private.

That is exactly the kind of window Tessera is built around.

T-Kalshi is a tokenized loan participation right linked to Kalshi’s pre-IPO valuation, structured through a Cayman SPC segregated portfolio and settled on Solana. It is not equity, and the risks are real. Those risks include legal uncertainty, an open-ended timeline to any liquidity event, and reports of a raise at a higher valuation that remain just that — reports.

Those risks should be named plainly. But so should what the moment is: a category moving from niche to mainstream, with a clear leader, rising volume, growing cultural visibility, and an increasingly unavoidable legal path toward definition. That combination is unusual.

The Summer Ends Before the Courts Do

The World Cup final is July 19. The legal process will run much longer.

By the time the tournament ends, prediction markets will have more users, more volume, and more public familiarity than they had when it began. The courts will still be sorting through jurisdiction. The category will still be working through what kind of market it becomes. But the summer will already have changed the baseline.

That matters because markets often become culturally normal before they become fully settled in law. The courts may take time. The product is moving faster.

T-Tokens are tokenised loan participation rights, not equity. High risk. DYOR. Not financial advice. Not available in the US or other restricted territories. Economic exposure does not guarantee returns; liquidity events are not guaranteed in timing or outcome; legal and regulatory outcomes affecting underlying companies are uncertain. tessera.pe/terms