The Mexican Peso Drops to a Nearly One-Year Low Against the US Dollar

2026-10-24 economy

Mexico City, Friday, 23 October 2026.
Suffering seven consecutive weeks of losses, the Mexican peso reached an eleven-month low of 18.70 per dollar as expected price swings doubled ahead of pivotal central bank decisions.

Peso Plummets to Eleven-Month Low Amid Rising Volatility

The Mexican peso has weakened to a near one-year trough, trading at 18.70 per US dollar on 23 October 2026, a level not seen since November 5, 2025 [1]. The currency’s seven-week losing streak has pushed implied volatility on one-month carry trades to 12.55 %, more than double the 6.39 % recorded on September 1, 2026, underscoring the heightened uncertainty facing corporate treasurers and supply-chain managers [1]. According to the latest daily fix published by the Diario Oficial de la Federación, the peso closed at 18.7005 per dollar, confirming the market’s jittery tone [8].

Central-Bank Crosscurrents Amplify FX Risk

The contrasting stances of the Federal Reserve and Banco de México are intensifying the peso’s gyration. While Banxico’s benchmark rate remains anchored at 6.50 % for a third straight decision, the Fed is still perceived as having an easing bias after its September 2026 meeting [1][6]. Minutes released on October 22 revealed that three of five Banxico board members left the door open to rate cuts even if inflation does not improve further, a signal that briefly shaved 21.88 centavos (1.22 %) off the peso in a single session [6]. In contrast, the Fed’s dot-plot commentary continues to hint at possible tightening in December 2026, widening the 285-basis-point interest-rate gap that has traditionally underpinned carry trades into Mexico [1][6].

Macro Crosswinds from North and South America

Trade-policy uncertainty is another key driver. Analysts at Commerzbank point to USMCA renegotiation risks—especially in autos, steel, and aluminum—as an overhang on Mexican exporters’ FX hedging decisions [5]. Meanwhile, the Brazilian real has strengthened almost 5.1 % after the October 25 runoff between Lula da Silva and Flávio Bolsonaro, diverting some carry-trade capital away from Mexico and adding to the peso’s headwinds [1]. The interplay of these external factors is clearly visible in the one-month implied-volatility spike to 12.55 %, which is more than double the 6.39 % observed at the start of October [1].

What Comes Next: Policy and Political Catalysts

Looking ahead, the market is now pricing a 70 % probability that the Fed raises its policy rate to 4.25 % at its October 27–28 meeting, a move that would further compress the peso’s yield advantage [7]. On November 5, 2026, Banxico will deliver its next policy decision; economists expect the board to signal a possible December rate cut if inflation continues to glide toward the 3 % target [1][7]. Strategists at Citi have nudged their year-end 2026 peso forecast from 18.00 to 18.20 per dollar, but warn that an adverse scenario could push the exchange rate toward 19.00 if either the US tariff agenda hardens or USMCA talks stall [1][5]. For multinational manufacturers operating under USMCA, the next six weeks will be critical in locking in FX hedges before both central-bank meetings and the U.S. mid-term elections on November 3 [1][7].

Sources

Mexican peso Currency volatility