Polymarket$3.11BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$391.73MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$25.08MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.
Updated Today
If Trey Stewart wins the nomination for the Republican Party to contest the 2026 Maine Governorship, then the market resolves to Yes.
As of March 18, 2026, the Kalshi odds for Wil Jonathan Bush be the Republican nominee for Governor in Maine? are: Robert Charles: 58%, Ben Midgley: 23%, Garrett Mason: 11%, Jonathan Bush: 10%, Owen McCarthy: 3%. These probabilities are derived from real-money trading and update in real time.
Wil Jonathan Bush be the Republican nominee for Governor in Maine? is currently available on Kalshi. Check PredictMarketCap for cross-platform availability as new markets are added regularly.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
