Cross-Platform Arbitrage: A Practical Guide

Arbitrage in prediction markets is conceptually simple: the same event trades at different prices on different platforms.

In the last 30 days, EdgeScan detected 23 direct arbitrage opportunities across Polymarket and Kalshi with a spread of 5% or greater. The average spread was 7.2%.

Key considerations: Fees matter significantly. Capital lockup is the hidden cost. Liquidity on both sides must be sufficient.