Kalshi posted a file month for buying and selling quantity in June because the 2026 FIFA World Cup fueled exercise throughout prediction markets.
DefiLlama knowledge reveals Kalshi recorded practically $9.4 billion in buying and selling quantity in June, up from about $5.3 billion in Might. Polymarket Worldwide additionally climbed to roughly $4.3 billion from about $3.5 billion a month earlier.
The match kicked off on June 11 and is the primary FIFA World Cup to function 48 groups, up from 32 in earlier editions. CNBC reported the competitors grew to become the largest driver of prediction market buying and selling in June, with Dune Analytics exhibiting file notional buying and selling volumes on Kalshi and Polymarket.
Kalshi buying and selling quantity hits June file. Supply: DefiLlama
The match’s knockout matches are attracting among the highest buying and selling exercise. Canada’s Spherical of 16 match in opposition to Morocco, scheduled for Saturday, had generated over $48 million in buying and selling quantity on Kalshi and over $26.8 million on Polymarket on the time of writing.
The USA’ Spherical of 16 match has additionally drawn important consideration from merchants. Kalshi’s market on which workforce will advance had generated greater than $2.1 million in quantity, whereas a comparable market on Polymarket had attracted round $1.6 million as of Saturday.

Supply: Kalshi
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Authorized battles intensify as prediction markets develop
The excessive buying and selling volumes come as prediction markets stay on the heart of a rising authorized and regulatory debate in the US.
By March, practically a dozen US states had already moved in opposition to corporations together with Kalshi and Polymarket, with some in search of to halt the markets whereas others pushed to convey them beneath current playing legal guidelines and state tax frameworks.

Supply: Cointelegraph
Federal regulators have rejected states’ makes an attempt to police prediction markets. The next month, CFTC Chair Michael Selig accused states of pursuing “unlawful enforcement actions” in opposition to federally regulated exchanges, arguing Congress had given the company sole authority over commodity derivatives markets, together with prediction markets. “To any state that seeks to nullify federal legislation and seize authority over these markets,” Selig stated, “we’ll see you in courtroom.”
The controversy has broadened past regulators. In June, on line casino operators, tribal organizations and labor teams urged Congress to take away sports-event contracts from the CFTC’s authority with an modification to the Digital Asset Market Readability (CLARITY) Act, arguing the contracts ought to as a substitute stay beneath state playing legal guidelines and current gaming oversight.
Europe has taken a special strategy. On Friday, the European Securities and Markets Authority (ESMA) reminded companies that many occasion contracts might already fall beneath current restrictions on binary choices, saying whether or not a product is regulated relies on its traits slightly than the “occasion contract” label hooked up to it.
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