Polymarket US sets a trading record with more than 74 million October trades

Football contracts drove a trading record at Polymarket US in October 2026, as the platform processed more than 74 million trades —a 15% increase from September. Expanded NFL and college football markets led the surge, alongside growing use of bundled prediction contracts introduced in August. Key takeaways October trade counts rose 15% from September. Bundled contracts exceeded half of platform activity in some weeks. Monthly active traders hit a record of about 478,000. Kalshi reported $19 billion in weekly contract volume in October.