Prediction markets exceeded $50 billion in trading volume in June, according to estimates attributed to Macquarie. Kalshi accounted for about $33 billion, or 65% of the market, up from 57% in May; sports-related contracts represented about half of activity.
The estimated concentration and sports share indicate the scale of activity in prediction markets for betting operators and investors.
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It was reported that Jefferies estimated US prediction markets averaged $1.91bn in daily volume in July. Binary prediction market turnover rose 9% from the previous month alongside World Cup activity.
Prediction-market trading volume reached a reported record $12.2bn in the week covered by the Italian-language report, with about $5.8bn linked to sports. The report attributed the figures to a16z Crypto and Dune Analytics and said the total amount committed to predictions reached $1.48bn in the week ending 15 June, around six times the level a year earlier.
Trading in 2026 US midterm election contracts passed $750m in notional volume by 15 October, citing CNN. That is nearly eight times the $92.4m traded on Congressional and state races in 2024. The Anti-Corruption Data Collective counts over 21,000 midterm markets across Kalshi and Polymarket and projects volume could reach $1.6bn once the races conclude.
Trading in contracts on the 2026 US midterm elections had passed $750m in notional volume by 15 October, CNN reported, in an account. The figure covers the new prediction market platforms. The Anti-Corruption Data Collective counts more than 21,000 midterm offerings on Kalshi and Polymarket, and the research group projects that volume on the races could reach $1.6bn once the midterms are complete.
Hyperliquid’s HIP-4 prediction market processed $317m in transactions following its 2 May 2026 launch, citing ChainCatcher analysis. The analysis put September volume at about $51m and daily volume in early October at roughly $1.25m, below Kalshi and Polymarket.
Hyperliquid's HIP-4 prediction market product has processed $317m in transaction volume since its launch on 2 May 2026, according to an analysis by Mario Chow published by ChainCatcher. The analysis said HIP-4 remains far behind Kalshi and Polymarket in scale.
Prediction markets recorded weekend notional trading volume exceeding $9.4bn. The outlet also reported that DraftKings and FanDuel contributed another $7m to Nebraska’s online sports betting campaign.