Palmeiras vs Cerro Porteno Leads Top Kalshi-Polymarket Arbitrage Gaps

Arbitrage opportunities are widening across sports and political markets, but execution risks are high due to settlement mismatches and stale contracts. Leading the list is SE Palmeiras vs. Club Cerro Porteño, showing a theoretical 1076.47% net profit. However, both contracts are already past their expiration dates, indicating stale pricing and zero active liquidity. In active markets, GA-04 and GA-06 House Elections present 792.86% and 640.74% gaps respectively. Note the severe structural risk here: Kalshi's contracts expire in November 2027, a full year after Polymarket's November 2026 expiration. This mismatch exposes traders to extended capital lockups and potential tracking errors. French Presidential run announcements for Jean-Luc Mélenchon and Gabriel Attal offer >670% returns, but similarly suffer from a 13-month settlement gap (Poly April 2027 vs Kalshi May 2028). Assess liquidity and capital cost before executing.