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 Pro Football: 2027 NFC Champion prediction market odds side by side across Polymarket, Kalshi. Platforms show similar odds, with an average spread of just 1.9pp. Close agreement often signals strong market consensus. With $47.8K in combined trading volume across 16 outcomes, this is one of the notable cross-platform prediction markets.
Carolina PanthersKalshiPolymarketCost: 94¢ per pair → pays $1 at resolution. Gross spread 5.9pp before fees.
View all arbs| Outcome | Polymarket | Kalshi | Spread |
|---|---|---|---|
Los Angeles Rams | 18%— | 16%±0 | 1.5pp spread |
Seattle Seahawks | 17%— |
| 2.0pp spread |
Green Bay Packers | 9%-0.5 | 11%-1.0 | 2.5pp spread |
Philadelphia Eagles | 9%— | 10%+1.0 | 1.5pp spread |
San Francisco 49ers | 8%— | 10%+1.0 | 2.5pp spread |
Detroit Lions | 7%-0.5 | 10%-1.0 | 3.0pp spread |
Chicago Bears | 7%-0.5 | 9%-1.0 | 2.5pp spread |
Dallas Cowboys | 5%-0.5 | 8%-1.0 | 3.0pp spread |
Carolina Panthers | 8%-0.5 | 2%±0 | 5.9pp spread |
Minnesota Vikings | 4%-1.0 | 4%+1.0 | 0.4pp spread |
Tampa Bay Buccaneers | 4%-1.0 | 2%-4.0 | 2.1pp spread |
Washington Commanders | 2%-0.5 | 3%-1.0 | 0.6pp spread |
Atlanta Falcons | 2%-0.5 | 3%±0 | 0.8pp spread |
New York Giants | 2%-1.0 | 3%+1.0 | 0.9pp spread |
New Orleans Saints | 3%-0.5 | 2%±0 | 0.6pp spread |
Arizona Cardinals | 1%-0.5 | 1%±0 | 0.1pp spread |
