Prediction market trading volume reached a record $188 billion in the third quarter of 2026, according to CryptoRank, marking a near 70% increase from the previous quarter and roughly 21 times the level seen a year earlier. CryptoRank said Kalshi was the main force behind the latest expansion, with sports markets making up about 40% of the platform’s Q3 volume. Earlier data also showed Kalshi gaining share across multiple prediction market segments. At the same time, Polymarket continued to hold a strong position in political markets. The figures point to a sharp rise in activity across the sector during the quarter, with different platforms leading in different categories.
Prediction market trading volume climbed to a record $188 billion in the third quarter of 2026, according to CryptoRank. The total was up nearly 70% from the previous quarter and about 21 times higher than in the same period of 2025.
CryptoRank said Kalshi was the main driver of the latest growth. Sports markets accounted for about 40% of Kalshi’s Q3 volume.
Earlier data showed Kalshi expanding its share across several prediction market categories, while Polymarket continued to retain a strong edge in political markets.
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