Mexican Peso Reaches 10-Month Low as Interest Rate Differential Shrinks
- The Mexican peso closed at 18.41 units per dollar on Friday, October 10, 2026, marking its weakest level in nearly ten months and logging five consecutive weeks of...
- El Financiero reported that the currency movement stems from the recent minutes released by Banco de México, which opened the door to potential rate cuts.
- During the final trading sessions of the week, the peso emerged as the hardest-hit currency among benchmark emerging markets, according to data from Bloomberg cited by El Financiero.
The Mexican peso closed at 18.41 units per dollar on Friday, October 10, 2026, marking its weakest level in nearly ten months and logging five consecutive weeks of losses, El Economista reported. The currency depreciated 1.1 percent in the final session, driven primarily by a shrinking interest rate differential between Mexico and the United States that undermines carry trade operations.
El Financiero reported that the currency movement stems from the recent minutes released by Banco de México, which opened the door to potential rate cuts. This divergence from the United States Federal Reserve has rapidly eroded the yield advantage that previously supported the peso’s strength in international markets.
Banxico Rate Cut Expectations Disarm Carry Trade Operations
During the final trading sessions of the week, the peso emerged as the hardest-hit currency among benchmark emerging markets, according to data from Bloomberg cited by El Financiero. Market analysts point directly to the narrowing gap between Mexican and American benchmark interest rates as the catalyst for the sell-off.
Enrique Covarrubias, chief economist and director of analysis at Actinver, noted in reporting by El Heraldo de México that Mexico historically attracted substantial foreign capital by paying significantly higher interest rates than the United States. Covarrubias detailed that the rate spread between the two central banks stood at 6.25 percentage points in 2023, whereas current levels have dropped to just 2.50 percentage points.

Banxico bajó su tasa de 11.25 a 6.50 por ciento en los últimos dos años, mientras que la Fed la aumentó en septiembre, a un rango de 3.75 a 4.00 por ciento.
Enrique Covarrubias, Actinver
Gabriela Siller Pagaza, director of economic and financial analysis at Grupo Financiero Base, explained to El Financiero that current reference rates sit at 6.5 percent for Banxico and 4.0 percent for the Federal Reserve. Siller warned that if Banxico trims its rate by 25 basis points to 6.25 percent by the end of the year while the Fed adjusts its target range to between 4.0 and 4.25 percent, the spread will touch a new historic low of 200 basis points.
Analyst Projections and Market Trading Ranges
Financial institutions have adjusted their near-term forecasts for the exchange rate following the central bank disclosures. Janneth Quiroz Zamora, director of economic, exchange, and stock analysis at Monex Grupo Financiero, told El Heraldo de México that the peso-dollar exchange rate could oscillate between 18.33 and 18.55 units.

El Financiero noted that external geopolitical variables could further influence the domestic currency. Potential friction regarding energy policy under the United States-Mexico-Canada Agreement, alongside broader corporate caution, threatens to push the exchange rate past its immediate resistance barrier of 18.44 pesos toward testing levels between 18.55 and 18.60 pesos per dollar.
Si al cierre del año el Banco de México recorta la tasa en 25 puntos base a 6.25 por ciento y la Reserva Federal la sube a un rango de 4.0 a 4.25 por ciento, el diferencial alcanzaría un nuevo mínimo histórico de 200 puntos base.
Gabriela Siller Pagaza, Grupo Financiero Base
