arbitrage scanner
find price differences between polymarket and kalshi
how arbitrage works
arbitrage opportunities occur when the same event has different prices on different platforms. you can't transfer positions between platforms — instead, you take opposite sides on each.
example: "team X wins" is priced at 45¢ on polymarket and 50¢ on kalshi. you buy YES on polymarket (45¢) and buy NO on kalshi (50¢). total cost: 95¢. one of them will always pay out $1 — guaranteed 5¢ profit regardless of outcome.
when we say "sell on kalshi" — we mean buying NO there, which is economically the same result.
important: always verify prices on both platforms before trading as they change rapidly. positive spreads indicate potential profit. negative spreads mean you'd lose money.
important disclaimer
arbitrage opportunities shown here are for informational purposes only. prices may be delayed and opportunities may no longer exist by the time you act. always verify current prices on both platforms before trading. trading on prediction markets carries significant risk.