[Polymarket October Trading Volume and Active Users Hit Record Highs] The decentralized prediction market platform Polymarket achieved record highs in October for trading volume, the number of active traders, and the number of newly opened markets. Data shows that the number of monthly active traders reached 477,850, a month-on-month increase of 93.7%. Monthly trading volume rebounded to $3.02 billion, and the number of newly opened markets reached 38,270, nearly three times that of August. Nevertheless, competitor Kalshi recorded $4.4 billion in trading volume in October, surpassing Polymarket.