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Prediction markets posted $54.09 billion in notional trading volume in July, up from $49.95 billion in June, according to data cited by Cryptonews. The source attributes much of that increase to World Cup-related contracts, which created frequent trading opportunities across sports markets.
Kalshi was the clear market leader for the month, while Polymarket and Polymarket (US) made up the next-largest share of activity.
Kalshi led July volume, fees and transactions
Kalshi processed $38.65 billion in July volume, equal to about 71.5% of the market total. The platform also generated an estimated $252.92 million in fees, roughly 77% of the $327.67 million in total estimated prediction market fees for the month.
Across all platforms, July activity reached nearly 365.92 million transactions. Kalshi accounted for 246.73 million of them, or about 67.4% of total transaction volume.
The next-largest operators were Polymarket at $7.89 billion in volume and Polymarket (US) at $4.86 billion. Combined, the two platforms handled nearly $12.75 billion in July trading, or about 24% of monthly activity.
World Cup contracts helped lift participation
The source says the World Cup broadened participation beyond traditional prediction market users and created a steady stream of event-driven contracts. That helped support higher trading volume, transaction counts and fee generation during the month.
Open interest approached $1.91 billion in early July. Kalshi held about $1.30 billion of that total, or roughly 68%. Polymarket had $419.21 million in open interest, and Polymarket (US) held $154.30 million.
The same report also said open interest cooled significantly after the World Cup ended, suggesting some of July’s momentum was tied to the tournament schedule rather than a broad-based rise across all event categories.
What players and market watchers should watch next
For bettors and prediction market users, the main takeaway is that major live events can sharply increase liquidity and activity across these platforms. What remains unclear is whether July’s elevated trading pace will hold after the World Cup bump fades.
The source also notes that regulatory developments remain a factor being watched by investors and operators, though it did not identify specific pending actions.
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Source: As reported by cryptonews.net.
