Prediction Market Notional Volume hit $5.31B (+17.87%) last week. Kalshi: $1.98B (+15.86%) Opinion: $1.81B (+10.35%) Polymarket: $1.45B (+31.98%) Predict: $71.75M (+25.79%) Myriad: $2.79M (-11.17%) Limitless: $2.66M (+7.25%)