Kalshi leads daily prediction market volume as nine exchanges tally billions
DeFi Rate reports 5.8 billion dollars traded in the last 24 hours and 5.50 billion dollars so far on October 31, with Kalshi at 4.70 billion dollars for the day ahead of Polymarket US at 448 million dollars.
Trading volume across nine exchanges
Prediction markets recorded 5.8 billion dollars in trading across nine exchanges over the last 24 hours, according to DeFi Rate.
The report, published Oct 31, 2026 · 9:15 PM ET, also put trading volume so far on October 31 at 5.50 billion dollars. That daily figure covers a different reporting window from the last-24-hours total.
Kalshi accounts for most daily activity
Kalshi recorded 4.70 billion dollars in volume for the day, according to DeFi Rate. Polymarket US followed with 448 million dollars.
The supplied summary does not identify the other exchanges or break down activity by contract. It also provides no historical comparison, limiting conclusions about whether the reported volume represents an increase or decrease.
What it means for prediction markets
- Kalshi accounted for most of the reported October 31 volume, with a substantial lead over Polymarket US.
- The 5.8 billion-dollar rolling total and 5.50 billion-dollar daily total should be treated as separate measurements, not added together.
- Aggregate turnover does not establish liquidity or pricing conditions for individual contracts; the supplied figures contain no contract-level detail.
Sources & attribution
- Published
- Source
- DeFi Ratedefirate.com
- Publisher
- https://defirate.com
- Source URL
- The feed did not publish this story's article address.
Full attribution under the Digital Millennium Copyright Act (DMCA), 17 U.S.C. § 512: this article is an original report by Infiniti Intelligence that summarizes the reporting of the publishers named above, links to their original work, and reproduces no protected expression beyond brief factual reference and in-line attribution (“according to DeFi Rate”). All rights in the underlying reporting remain with the publishers listed; nothing here implies endorsement by or affiliation with them. Rights holders may request correction, update or removal through the contact address published at infiniti.w3ai.io.
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