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 La Liga Winner prediction market odds side by side across Polymarket, Kalshi. Platforms show similar odds, with an average spread of just 0.9pp. Close agreement often signals strong market consensus. With $582.6K in combined trading volume across 20 outcomes, this is one of the notable cross-platform prediction markets.
| Outcome | Polymarket | Kalshi | Spread |
|---|---|---|---|
 Barcelona | 81%-1.0 | 81%±0 | - |
 Real Madrid | 19%+1.0 | 19% |
| 0.5pp spread |
 Atletico Madrid | 0%±0 | 1%±0 | 0.9pp spread |
 Villarreal | 0%±0 | 1%±0 | 0.9pp spread |
 Celta Vigo | 0%— | 1%±0 | 0.9pp spread |
 Betis | 0%— | 1%±0 | 0.9pp spread |
 Girona | 0%— | 1%±0 | 1.0pp spread |
 Espanyol | 0%— | 1%±0 | 1.0pp spread |
 Real Sociedad | 0%— | 1%±0 | 1.0pp spread |
 Getafe | 0%— | 1%±0 | 1.0pp spread |
 Levante | 0%— | 1%±0 | 1.0pp spread |
 Elche | 0%— | 1%±0 | 1.0pp spread |
 Sevilla | 0%— | 1%±0 | 1.0pp spread |
 Mallorca | 0%— | 1%±0 | 1.0pp spread |
 Athletic Bilbao | 0%±0 | 1%±0 | 1.0pp spread |
 Osasuna | 0%— | 1%±0 | 1.0pp spread |
 Rayo Vallecano | 0%— | 1%±0 | 1.0pp spread |
 Alaves | 0%— | 1%±0 | 1.0pp spread |
 Oviedo | 0%— | 1%±0 | 1.0pp spread |
 Valencia | 0%— | 1%±0 | 1.0pp spread |
