Data: In the past 7 days, Kalshi trading volume reached $3.073 billion, while Polymarket reached $1.189 billion.

According to Foresight News, citing DeFiLlama data, in the prediction market platforms, Kalshi's trading volume in the last 30 days reached $11.502 billion, and $3.073 billion in the past 7 days; Polymarket International TVL stands at $405 million, with trading volume of $4.858 billion over the last 30 days and $1.189 billion in the past 7 days; Predict Fun TVL is $21.68 million, with trading volume of $362 million in the last 30 days and $103 million in the past 7 days; OPINION TVL is $4.58 million, with trading volume of $404 million in the past 30 days and $95.32 million in the past 7 days.