The World Cup has pushed prediction markets into the spotlight. Kalshi's June trading volume surged to $9.4 billion, a month-over-month increase of 77%, while Polymarket International also recorded $4.3 billion. In a single round of 16 match between Canada and Morocco, the combined trading volume on the two platforms exceeded $74 million—higher than the daily trading volume of many DeFi protocols.

Behind the numbers are structural changes. The World Cup has validated a key proposition: prediction markets can absorb large amounts of liquidity from a single event, just like CeFi exchanges. Kalshi and Polymarket are becoming market makers for "event derivatives," with pricing power, clearing mechanisms, and user stickiness all undergoing stress tests.

Regulation is also accelerating. Multiple U.S. states believe sports event contracts should fall under gambling regulations, while Europe's ESMA warns that some event contracts may fall into the binary options category. In this definitional battle of "financial instruments vs. gambling products," if prediction market contracts are classified as derivatives, compliance costs will rise sharply; if classified as gambling, they will face stricter licensing and geographic restrictions.

The downside risk is equally clear: after the World Cup ends, trading volume may drop significantly. The 2024 election and the 2026 World Cup are both episodic catalysts. Whether prediction markets can maintain high liquidity depends on converting "event-driven" into "platform stickiness." Polymarket's user retention rate after the 2024 election was not ideal, and Kalshi needs to prove it is not just a World Cup flash in the pan.

For the crypto market, the rise of prediction markets means that event contracts, as a new asset class, are gaining institutional-grade liquidity. This is not just growth in trading volume, but an extension of crypto financial infrastructure toward "non-price risk transfer."

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