Mexican peso depreciates amid geopolitical tensions and interest rate shifts

The Mexican peso experienced significant depreciation on October 21, 2026, becoming one of the world's most depreciated currencies against the US dollar. The exchange rate breached the 18.50 level, reaching interbank closes near 18.67 pesos per dollar.

Analysts attribute this volatility to several converging factors: heightened geopolitical risk stemming from tensions between Iran and the United States, rising oil prices, and the dismantling of carry trade positions. The latter is driven by a narrowing interest rate differential between Mexico and the United States, as markets anticipate potential rate hikes by the Federal Reserve.

In response to the currency's volatility, officials from the Bank of Mexico (Banxico) stated they are monitoring the situation closely to ensure that exchange rate fluctuations do not trigger inflationary pressures. While domestic retail sales have shown resilience, analysts from Citi have adjusted their long-term forecasts, projecting the dollar to close 2026 at 18.20 pesos and 2027 at 18.60 pesos.