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 Federal Reserve Interest Rate Decision - March 2023 prediction market odds side by side across Polymarket, Limitless. Platforms show similar odds, with an average spread of just 0.5pp. Close agreement often signals strong market consensus. With $31.47M in combined trading volume across 4 outcomes, this is one of the most actively traded cross-platform prediction markets.
| Outcome | Polymarket | Limitless | Spread |
|---|---|---|---|
 No change | 99%+0.6 | 99%— | 0.5pp spread |
25 bps decrease | 0%±0 |
| 0.4pp spread |
50+ bps decrease | 0%— | 1%— | 0.5pp spread |
25+ bps increase | 0%±0 | 1%— | 0.5pp spread |
