Polymarket October Volume 2026 figures show the crypto-born platform still growing fast. A new Jefferies report tracks every major prediction market. It found record trading across the whole sector last month. Polymarket kept pace with that surge.
Polymarket October Volume 2026: The Key Numbers
Jefferies analyst Daniel Fannon shared the data with clients this week. Polymarket averaged $655 million in daily volume in October. That marks a 50% jump from September. Furthermore, it sits 395% above the level from one year ago.
Polymarket held a 17% share of the platforms Jefferies tracks. That share stayed flat month over month. In other words, Polymarket grew at about the same pace as the market.
The whole sector hit new highs. Average daily volume rose 55% to a record $4.13 billion. Open interest climbed 45% to $3.27 billion, also a record. Meanwhile, sports contracts drove most of the action. Sports volume reached about $2.98 billion per day, a 78% share of the market.
Non-sports contracts grew too. They rose 55% to $843 million a day. Political markets ahead of the midterms pushed much of that gain. Smaller platforms also grew. Rothera, the Robinhood and Susquehanna joint venture, averaged $49 million a day.
Why It Matters For Players
Polymarket started as a crypto platform. Many traders still use it to bet on sports, politics, and crypto prices. Therefore, its growth matters to anyone who gambles with digital assets.
Higher volume usually means better liquidity. As a result, traders can enter and exit positions with smaller price gaps. That helps casual users who place small trades.
However, more volume also brings more risk. Fannon notes that weekend “combos” spike around NFL and college football. Combos work like parlays. They pay more, yet they also lose more often. Additionally, Jefferies expects crypto and financial contracts to drive non-sports growth after Election Day. Fast crypto price contracts can drain a bankroll quickly.
Keep a few rules in mind. First, set a firm budget before each session. Next, avoid stacking legs just to chase a bigger payout. Finally, treat short-term crypto price markets as high-risk entertainment, not income.
Fees also deserve attention. Each platform sets its own trading fees and spreads. Therefore, compare the total cost of a trade, not just the headline odds. Small fees add up over hundreds of trades.
Casino Bonus Streak Perspective
We expect prediction markets to keep pulling crypto users away from classic sportsbooks. Still, these platforms rarely offer the welcome deals that casinos and books do. Before you move money, compare the value on our list of the best casino bonuses. A strong bonus can stretch the same bankroll much further.
Cashout speed matters for crypto players as well. Our guide to fast payout casinos ranks the sites that pay winners without long holds.
What Players Should Watch Next
First, watch whether November volume cools after the election. Next, see if Polymarket gains share from its rivals or stays flat. Finally, track whether Polymarket October Volume 2026 marks a peak or just another step up as the NBA season heats up. (Source: Casino.org)
