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.

Volume is contracts traded at their $1 face value: a contract that pays $1 if it’s right counts as $1, whatever it cost. Dollars paid is what traders actually spent, each contract at the price it ...

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Volume is contracts traded at their $1 face value: a contract that pays $1 if it’s right counts as $1, whatever it cost. Dollars paid is what traders actually spent, each contract at the price it ...

Use Polymarket promo code RATE to claim a $25 bonus with a $10 deposit. Compare UFC Fight Night knockout, submission and ...

Kalshi and Polymarket odds measure expectations of winning, not vote share. A market favorite can lose, and price swings are ...

Use Kalshi promo code RATE to claim a $55 trading bonus after trading $25. Compare Ravens vs. Bills probabilities and player ...

Get $55 in trading credit for Ohio State vs. USC. Sign up and trade $25 on tonight's Big Ten battle to qualify.

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Senate election odds favor Democrats as Republicans defend red states. Texas draws $47 million in trading, but close polls ...