Terminal
Infiniti Feed

Kalshi dominates October 31 trading as nine venues reach $2.63 billion

DeFi Rate put October 31 volume so far at 2.63 billion dollars across DraftKings Predictions, Gemini, Kalshi, Novig, Polymarket, Polymarket US, ProphetX, Rothera and Underdog Exchange. Kalshi accounted for 2.30 billion dollars, followed by Polymarket US at 135 million dollars and Polymarket at 117 million dollars.

Prediction-market trading volume reached $2.63 billion so far on October 31, 2026, across nine venues, according to DeFi Rate. The figures were published at 5:45 PM ET and represent a partial-day tally.

Kalshi leads the volume breakdown

Kalshi accounted for $2.30 billion of the reported total, placing it well ahead of the other venues in the supplied breakdown.

Polymarket US followed with $135 million, while Polymarket recorded $117 million, according to DeFi Rate. The tally treated Polymarket US and Polymarket as separate venues.

Nine venues in the tally

The coverage included DraftKings Predictions, Gemini, Kalshi, Novig, Polymarket, Polymarket US, ProphetX, Rothera and Underdog Exchange. Individual volumes for the remaining six venues were not provided in the summary.

What it means for prediction markets

  • The reported activity was heavily concentrated at Kalshi rather than evenly distributed across the nine venues.
  • These are October 31 volumes so far, not final daily totals; comparisons should retain that timing distinction.
  • The summary provides venue-level turnover, not contract prices or market-level liquidity, so it does not establish changes in implied probabilities or execution conditions.
KalshiPolymarketDraftKingsInfiniti MarketsInfiniti Signals

Sources & attribution

Published
  1. 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.

Related