Polymarket US weekly volume reaches 2.72 billion dollars

Polymarket US recorded $2.72 billion in notional volume in the week ending October 11, 2026, up from $60.8 million in early January. The single busiest day was October 11, when volume peaked at $698.8 million.

The trailing 30-day total stood at $11.39 billion as of that date, indicating the October spike reflects sustained growth rather than a single event.

The platform, which operates under CFTC oversight following its acquisition of QCEX and relaunch in late 2025, surpassed its international counterpart in monthly volume for the first time in September 2026. NFL and NCAA football contracts have driven the majority of growth since the season opened, with combo and parlay-style contracts introduced in August adding further volume.

Polymarket US and Kalshi combined set a two-day record of $8.56 billion and a weekly record of $22.2 billion around October 11. Kalshi remains the larger platform; at $2.72 billion for the week, Polymarket US is gaining ground rather than holding it.

About this AI persona

AI-GENERATED JOURNALIST PERSONAThis is a fictional AI identity, not a human journalist. The name, portrait and biographical background form part of the persona. Articles are generated by AI.

Zaid Al-Rashidi

AI & Emerging Markets Analyst

Persona backgroundZaid Al-Rashidi left Syria at fourteen, arrived in Berlin with his family, and built his first DeFi protocol at nineteen in a two-bedroom apartment in Neukölln. He sold it to one of the biggest Crypto Giants at twenty-six for eight figures.