Polymarket US traded $11.4B in 30 days, up 138%, with crypto volume up 3,565%

Polymarket US recorded $11.3B in contract volume over Sep 14-Oct 13, 2026, according to defirate.com. That represented 12% of prediction-market volume and a 138% increase from the preceding 30 days.

Growth and measurement

The same breakdown put dollars paid at $3.3B. That is a separate measure from contract volume: the $11.3B figure should not be read as the amount participants paid.

The supplied headline, published Oct 13, 2026 · 11:24 PM ET, instead lists $11.4B in 30-day volume. The provided material does not explain the difference between that headline figure and defirate.com’s $11.3B total.

The headline also reports a 3,565% increase in crypto volume. However, the accompanying source excerpt contains no crypto-specific figures, comparison period or calculation to substantiate that claim. The documented breakdown therefore supports the platform-wide growth figures, but does not establish how much crypto contributed.

What it means for prediction markets

• Activity increased sharply: The reported 138% rise measures contract-volume growth against the previous 30 days, not a change in any event’s probability.
• The measurement matters: Contract volume of $11.3B and dollars paid of $3.3B describe different aspects of activity and should remain distinct.
• Category conclusions remain limited: The supplied excerpt does not support attributing the broader increase to crypto or treating the headline’s 3,565% figure as independently verified.