October 12th 2026, 6:06 PM
Polymarket US trades $2.72 billion in notional volume in a year of rapid growth
Key Summary
Polymarket US has experienced a significant surge in trading volume, reaching $2.72 billion in notional volume in a single week, a 44-fold increase from January. The growth is largely attributed to sports markets, particularly NFL and NCAA football contracts. The platform operates under the oversight of the Commodity Futures Trading Commission and is still chasing market share.
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The Numbers Behind the Climb
Notional volume measures the total face value of contracts that change hands, not the platform's revenue or profit. The week ending in early October 2026 came in at $2.72 billion. The single busiest day came on October 11, 2026, when daily volume peaked at $698.8 million.The Growth Has Largely Been Attributed to Sports Markets
Football and parlays did the heavy lifting Polymarket US introduced combo and parlay-style contracts in August 2026, and volume has grown rapidly since. The broader sector felt the same tailwind. Polymarket and Kalshi combined set a two-day record of $8.56 billion in volume, and a record weekly figure of $22.2 billion was noted around October 11, 2026.How Polymarket US Got Here
Polymarket US operates under the oversight of the Commodity Futures Trading Commission. Its path to that status ran through an acquisition of QCEX, followed by a relaunch in late 2025. Kalshi remains the dominant player in that segment. Even with a $2.72 billion week, Polymarket US is still chasing market share rather than defending it.#Crypto#US#Finance#CFTC