Polymarket, Polymarket US, and Kalshi combined for $50.6B in monthly volume in July, an all-time high, driven partly by major sporting events.
DeFi & Yields ·
Combined trading volume across Kalshi and Polymarket reached $50 billion in July, marking an all-time high for the prediction market platforms. The milestone reflected divergent momentum within the ecosystem: Polymarket US's volume surged 54% compared to June, while the main Polymarket platform experienced a 26% decline over the same period.
The surge in aggregate volume was partly driven by major sporting events during the month. The shift toward Polymarket US, launched in response to regulatory developments in the United States, suggests a reallocation of trading activity among the prediction market operators.
What remains unclear is whether the concentration of growth in Polymarket US reflects sustained demand or represents a temporary spike around specific events, and whether the decline on the main platform reflects genuine user migration or temporary seasonality.