Prediction Market Monthly Volumes Grew 130x Since 2024: Keyrock, Dune

On-chain prediction markets have grown quickly over the past two years, with total monthly volume jumping from under $100 million in early 2024 to more than $13 billion today.

That’s a 130-times increase, making them one of the fastest-growing financial sectors, according to a new report from Keyrock and Dune Analytics, shared with The Defiant. Most of the growth in 2025 is coming from non-sports-related markets, despite sports betting leading U.S. prediction market activity in recent months.

“Economics” and “Tech & Science” show the biggest volume gains this year, up 10 times and 17 times, respectively. Open interest is also expanding fastest in Economics (7x) and Social & Culture (6x).

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