Kalshi and Polymarket combined volume declined 15% in August, marking their first monthly drop in a year.
DeFi & Yields ·
Trading volume on Kalshi and Polymarket fell 15% in August, marking the first month-on-month decline in a year for the two prediction market platforms. Kalshi posted $37.17 billion in volume during the month, while Polymarket and its US-based counterpart combined for $8.16 billion.
The decline signals a potential shift in user activity after sustained growth. Prediction markets have gained attention as platforms for wagering on event outcomes, from elections to economic indicators, and the two firms have emerged as major venues in the sector. The timing of the drop comes amid broader market conditions and user engagement patterns that remain partly opaque.
What is unclear is whether the August decline reflects seasonal trading patterns, user migration between platforms, macro headwinds affecting risk appetite, or structural changes in market participation. Whether volume rebounds in September or continues to contract will provide clearer signals of longer-term momentum.