Polymarket's April volume falls 8.9%, first drop since Aug. 2025

Prediction market platform Polymarket saw its monthly trading volume decline in April for the first time since August 2025. According to data from Dune Analytics, Polymarket's volume totaled $10.2 billion in April, an 8.9% decrease from $11.2 billion in March. Over the same period, competitor Kalshi's volume grew by approximately 13% to $14.8 billion, while the total trading volume for the prediction market sector increased by 12.4% to $29.8 billion.