U.S. prediction market volume reached $120.73 billion in October 2026, up 64.1%. Kalshi led with $98.15 billion as identified ...

Compare California election markets on Kalshi, Polymarket US and Gemini, including governor, proposition and congressional contracts and signup offers.

The day before the November 3 midterms, traders give Democrats about a 19-in-20 chance of winning the House. At DeFi Rate’s noon Eastern check on November 2, Kalshi’s Democratic side was at 94% (93.9¢ ...

Prices to buy each outcome. Tap a price to open Kalshi, Polymarket, Polymarket US and 1 more. Who will win the governorship in California?: Kalshi, Polymarket, Polymarket US and 1 more odds, observed ...

Abdul El-Sayed is the favorite to win Michigan’s open Senate seat, with a 81% chance across the prediction markets we track. As of Nov. 2, Kalshi has El-Sayed at 78%, Polymarket at 80% and Polymarket ...