Polymarket US October Volume Climbs to $14.77 Billion as Combos Reach 58%

Polymarket US recorded $14.77 billion in face-value contract volume in October 2026, nearly 3.7 times June’s total, as Combo contracts made up more than half of activity on the U.S. venue. The monthly total rose from $4.04 billion in June to $14.77 billion in October, an increase of about 266%. That is a $10.73 billion gain over the four-month comparison. The measure counts contracts at their full payout value, rather than the cash traders paid to buy them. Sports contracts generated $4.57 billion in October volume, or 31% of the total. Combos accounted for $8.6 billion, equal to 58.2%. These category figures describe contract volume on Polymarket US during October. A contract’s face value reflects its full payout, not its purchase price.

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