Polymarket vs Kalshi Arbitrage
When YES on one venue plus NO on the other costs less than $1.00 after fees, the $1.00 payout is locked in regardless of outcome. The hard part is knowing the two markets truly resolve the same way — that's what our matching engine and human review are for.
Verified market pairs only
Fuzzy matching plus AI verification of resolution criteria, then a human confirms every pair — because resolution mismatches are how fake arbs burn people.
Fee-aware net edge
Kalshi's trading fee and Polymarket slippage are baked into every number. We show net edge and executable size, not fantasy math.
Scanned every 2 minutes
Cross-platform prices are checked continuously; opportunities appear the moment an edge opens and are marked stale the moment it closes.
For informational and educational purposes only. Not financial advice. 18+. Prediction markets involve risk of total loss.