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Oct. 16 volume so far totals $1.71B across venues, with Kalshi at $1.47B

Quiet quarter-hour — no significant new platform headline in the last 15 minutes, so this fresh intraday volume snapshot leads, in a volume/metrics category different…

Prediction-market volume across venues reached $1.71B so far on Oct. 16, 2026, with Kalshi accounting for $1.47B, according to the intraday snapshot published at 1:09 PM ET.

The update focused on trading activity rather than platform news: the accompanying summary reported no significant new platform headline in the preceding 15 minutes.

Measurement matters

According to defirate.com, its volume reporting includes contracts measured at their $1 face value. The supplied excerpt also lists $25.2B in dollars actually paid and $3.8B over the last 24 hours.

The excerpt does not specify the period covered by the $25.2B figure or explain how its figures reconcile with the intraday snapshot. The Oct. 16 total and the last-24-hours figure therefore should not be treated as measurements of the same reporting window.

What it means for prediction markets

  • Kalshi accounts for most of the reported $1.71B intraday total, making venue concentration the snapshot’s central takeaway.
  • Comparisons require consistent measurement: contract face value and dollars actually paid are distinct metrics, while intraday and last-24-hours totals cover different windows.
  • These figures describe trading activity, not changes in any contract’s implied probability.
PredictionMarketsKalshiPolymarket

Sources & attribution

  1. [1]Defirate (defirate.com)https://defirate.com/prediction-markets/volume/

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