Polymarket vs. Kalshi — Live Market Comparison

Polymarket vs. Kalshi FAQ

Why compare Polymarket and Kalshi?

Polymarket and Kalshi can price similar events differently. This tool surfaces those discrepancies so you can compare implied probabilities, market rules, fees, liquidity, and resolution language before making any decision. A visible price gap is only a research signal; costs and execution risk can erase it.

How do I find the same event on both platforms?

Search a keyword like 'Fed rate', 'Bitcoin', or 'election'. Both columns filter simultaneously. Markets are ordered by volume, so the most actively traded markets appear first. When you find matching events, compare the YES prices, liquidity, and market rules side by side.

What does the YES price represent?

The YES price (displayed in cents) is the current market price for a YES share. A 45¢ YES share means you pay 45 cents for a claim that pays $1.00 if the event resolves YES — implying a 45% probability. Comparing YES prices across platforms shows you which is offering a better deal for the same event.

What risks remain in cross-platform arbitrage?

Platforms can resolve similar events differently based on their specific rule interpretations. Withdrawal delays, fees, liquidity limits, and market movement can all affect a theoretical gap. Treat the scanner as a research tool, not execution advice.