Compare prediction market odds across both platforms in real time. Spot price gaps, see where the big money disagrees, and trade the difference.
These markets have different prices on Polymarket and Kalshi. The difference is what you can win.
| Market | Polymarket | Kalshi | Gap | Cheaper on |
|---|---|---|---|---|
| 40¢ | 25¢ | 15.0¢ | Kalshi | |
| 48¢ | 53¢ | 5.0¢ | Polymarket | |
| 10¢ | 14¢ | 4.3¢ | Polymarket | |
| 8¢ | 4¢ | 3.7¢ | Kalshi |
Both platforms let you trade on real-world events. Here's how they stack up.
| Feature | Polymarket | Kalshi |
|---|---|---|
| Regulated in US | No (offshore) | Yes (CFTC-regulated) |
| Available to US users | Yes (limited) | Yes |
| Number of markets | 3,000+ | 1,000+ |
| Liquidity | Very high | Moderate |
| Categories | Politics, Crypto, Sports, Culture | Politics, Economics, Weather, Sports |
| Settlement currency | USDC (crypto) | USD (bank/card) |
| Min trade | ~$1 | $1 |
| Trading fees | ~2% on winnings | Variable (per contract) |
| Live sports trading | No | Yes |
| API available | Yes | Yes |
Instead of checking both platforms separately, PredTerminal shows you everything in one place:
Use Polymarket if you want the deepest liquidity, widest market selection, and are comfortable with crypto (USDC). It's the largest prediction market by volume.
Use Kalshi if you want US regulation, bank/card deposits, and live sports trading. It's the safest option for US-based traders.
Use both, and use PredTerminal to find where the prices disagree. When the same event is priced differently on each one, that is where the money is.