World Cup prediction markets top $27 billion, testing crypto’s bet on real-time trading

The 2026 FIFA World Cup has delivered more than a historic football spectacle. It has also become a landmark event for prediction markets, with Kalshi recording $27 billion in trading volume and attracting roughly 3 million users during the tournament.

According to Reuters, the figures shows how rapidly event-based trading is moving from a niche crypto-adjacent product into mainstream financial culture.

Prediction markets are increasingly operating at the intersection of digital assets, real-time information and financial speculation.

Platforms such as Polymarket have helped establish a crypto-native model in which users trade contracts tied to elections, sports, economic data, cryptocurrency prices and geopolitical events.

$27 billion shows prediction markets have gone mainstream

The World Cup provided the industry’s biggest stress test yet. With 48 teams, 104 matches and millions of viewers following events in real time, every goal, injury, lineup change and knockout result created another opportunity for markets to reprice expectations.

Kalshi’s World Cup performance was significantly larger than the company had anticipated.

Reuters reported that the exchange had expected approximately $13 billion in trading volume and 1.5 million users for the tournament. Instead, volume reached $27 billion and user numbers climbed to about 3 million.

The distinction between trading volume and actual capital deployed is important. A $27 billion volume figure does not mean $27 billion of net investor capital entered the market.

Prediction-market contracts can be traded repeatedly, causing the same underlying liquidity to generate substantially more volume.

Sports Business Journal reported that Kalshi’s volume excluding parlays was approximately $12.4 billion, based on TickerTracker data, while Kalshi said its figure reached $27 billion when parlays were included.

The same analysis put straight-wager volumes at $3.38 billion for Robinhood and $3.29 billion for Polymarket U.S.

That difference illustrates an important feature of the emerging market: there is no single standardized measurement for prediction-market activity.

Contracts, parlays and settlement structures can produce materially different volume calculations.

Nevertheless, the World Cup demonstrated that millions of users are willing to put money behind real-time views about events.

“The World Cup is the World Cup. It’s one of a kind,” — Adam Barrick, Kalshi head of sports partnerships.

Polymarket gives the boom a crypto-native dimension

The more important development for crypto markets is not simply that prediction platforms attracted sports bettors. It is that prediction markets are increasingly adopting the logic of digital-asset markets.

Polymarket is central to that shift.

The platform allows users to trade contracts whose prices represent implied probabilities, with markets spanning politics, sports, macroeconomics and crypto.

Its crypto section now includes markets tied to Bitcoin, Ethereum and other digital assets, effectively turning the prediction-market model back onto the cryptocurrency market itself.

Crypto traders are accustomed to markets that operate continuously, reprice rapidly and respond directly to new information.

Prediction markets apply much of the same philosophy to events that traditional financial markets normally treat as binary outcomes rather than tradable assets.

The World Cup demonstrated how powerful that structure can become when the underlying event has global attention.

A regulatory decision can move a token. A Federal Reserve announcement can move Bitcoin. A protocol upgrade can reprice Ethereum. In each case, traders are attempting to convert uncertain future outcomes into market positions.

Liquidity, regulation and insider trading become bigger risks

The rapid expansion also creates problems that crypto investors will recognize immediately.

Prediction markets face questions surrounding regulation, market manipulation, liquidity and the use of nonpublic information.

Kalshi is engaged in legal disputes with several U.S. states over whether sports-related event contracts constitute gambling, while federal authorities have also investigated suspected insider trading involving one of its markets.

Those issues matter because prediction markets depend on a credible settlement process.

If traders cannot trust that a market will resolve according to transparent rules, liquidity can disappear precisely when uncertainty is highest.

Microsoft has now explicitly warned employees against using material nonpublic information to trade on prediction platforms, extending traditional insider-trading restrictions into an industry that has grown dramatically in recent years.

The move reflects broader concern that employees, athletes, officials and other participants may possess information capable of moving event-contract prices.

For crypto observers, that development is significant. The more prediction markets resemble financial exchanges, the more regulators and institutions are likely to apply financial-market standards to them.

The bigger crypto story is information becoming an asset

The World Cup’s prediction-market boom points toward a broader change in how financial markets treat information.

Crypto helped normalize the idea that almost anything capable of generating economic value could become a liquid, continuously traded market. Prediction platforms are extending that concept to events.

Polymarket already lists contracts involving cryptocurrency prices, Federal Reserve decisions, elections and geopolitical developments alongside sports markets.

The opportunity is not necessarily that crypto will replace sportsbooks. It is that the market architecture pioneered by crypto continuous trading, global digital access, programmable contracts and rapid information discovery.

The $27 billion World Cup figure therefore matters less as a sports-betting statistic than as evidence of product-market fit.

Millions of people demonstrated that they are willing to trade probabilities in real time.

Prediction platforms demonstrated that major cultural events can generate enormous liquidity. And crypto-native markets showed that the same infrastructure can be applied to everything from Bitcoin prices to elections and macroeconomic decisions.

The next phase will be about whether that liquidity can survive outside mega-events.

If prediction markets retain users after the World Cup and successfully expand into financial, political, scientific and crypto-related outcomes, they could evolve from a speculative novelty into a permanent layer of digital financial infrastructure.