Polymarket$2.32BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$350.67MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$18.48MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.Compare Minnesota Republican Gubernatorial Primary prediction market odds side by side across Polymarket, Kalshi. Platforms show similar odds, with an average spread of just 0.8pp. Close agreement often signals strong market consensus. With $31 in combined trading volume across 11 outcomes, this is one of the notable cross-platform prediction markets.
Mike LindellPolymarketKalshiCost: 98¢ per pair → pays $1 at resolution. Gross spread 2.5pp before fees.
View all arbs| Outcome | Polymarket | Kalshi | Spread |
|---|---|---|---|
Lisa Demuth | 57%— | 56%±0 | 1.5pp spread |
Kendall Qualls | 29%— |
| 1.0pp spread |
Mike Lindell | 13%— | 15%+2.0 | 2.5pp spread |
J Jim Schultz | - | 2%±0 | - |
Chris Madel | 3%-1.7 | 1%±0 | 1.7pp spread |
Jeff Johnson | 1%— | - | - |
Scott Jensen | 1%±0 | 1%±0 | 0.4pp spread |
Brad Kohler | 0%— | 1%±0 | 0.8pp spread |
Kristin Robbins | 0%±0 | 1%±0 | 0.8pp spread |
Patrick Knight | 0%-1.3 | - | - |
Phil Parrish | 0%— | - | - |
