Live · Arbitrage
Cross-Platform Spreads
When the same event trades on more than one venue — Polymarket and Kalshi — the prices drift. We match equivalent contracts and rank the gaps by realistic edge — after fees, slippage, and resolution risk.
No active spreads
Nothing actionable right now
That's normal — cross-platform spreads on the same contract usually close within minutes as arbitrageurs trade them away. We re-scan Polymarket and Kalshi continuously and surface a gap the moment one opens. Check back, or watch /live/markets for every platform side by side.
Why spreads aren't free money
Platform fees, KYC delays on withdrawal, resolution-source disagreements between venues, and counterparty risk all eat into the theoretical edge. We flag thin liquidity and contracts that resolve on different dates, but a printed spread is an invitation to do your own diligence — not a guaranteed profit.