Dólar en México: Tipo de Cambio HOY 1 de enero de 2026 y por qué baja

The Mexican peso continued its strong performance against the U.S. dollar at the start of 2026, a trend that has been developing over the past several months. As of the opening of trading on Thursday, January 1, 2026, the dollar was trading at 18.0012 Mexican pesos, according to exchange rates. This report details the factors contributing to the peso’s appreciation, a trend that began around October.

Experts attribute the peso’s strength, often referred to as the “superpeso,” to liquidity injections from the U.S. Federal Reserve and attractive interest rates in Mexico. While speculation mounts that the Fed will continue to cut rates throughout 2026, the Banco de México (Banxico) may pause its own adjustments at the beginning of the year, maintaining investor interest in Mexican assets. This strategy, combined with rising silver prices, has positioned the peso as the sixth-best performing currency globally this year.

Market participants planning banking operations on Monday should be aware that liquidity is typically lower due to the holiday period. Exchange rates at institutions like Banco Azteca often reflect wider margins, currently around 16.90 pesos for purchases and 18.59 pesos for sales. However, in the interbank market, the Mexican currency is poised to close out 2025 strongly, exceeding even the most conservative forecasts from earlier in the year.

Key factors to watch on Monday include the flow of year-end remittances and potential profit-taking by investors following exceptional returns. While no high-impact economic data is expected, the peso’s stability against the dollar signals confidence in the national economy heading into 2026. Monitor market openings tomorrow, as the USD/MXN exchange rate could test further support levels if the dollar’s weakness persists.

Why Has the Dollar Price Fallen in Mexico?

The dollar experienced a significant decline on Wednesday, October 15, according to financial analysis firm Monex. The firm attributes this drop to political and economic uncertainty in the United States, particularly tensions between the administration of Donald Trump and China, and the resulting increase in tariffs. This geopolitical dynamic is influencing currency valuations across the globe.

Over the past week, the U.S. dollar has risen 0.65%, but it has still fallen 6.84% overall for the year – a considerable figure. The peso’s appreciation against the dollar has been 0.19% in recent days.

At the opening on Wednesday, the dollar was valued at 18.45 pesos, although the closing price may see slight increases. The Mexican peso has been one of the strongest currencies against the U.S. dollar, ranking as the fourth-best performing emerging market currency.

Exchange Rate in Mexico — December 31, 2025

Official Quotation

• FIX Exchange Rate (Banxico/DOF): $18.0012 MXN per U.S. dollar.
• Spot Market: $17.952800 MXN per dollar in the early hours of the day, with a previous close of $18.0080 MXN. Another recorded average was between $17.6038 – 18.2782 MXN.

Consequently, the dollar is being purchased in a range of approximately 17.6038 MXN and sold in a range of 18.2782 MXN, depending on the bank. These values may vary slightly throughout the day due to internal adjustments and each institution’s schedules.

It’s important to note that the Banxico FIX rate is a crucial tool for the Mexican financial market, as it determines the official value of the peso against the U.S. dollar. This value is calculated by Banxico, based on a weighted average of quotes from wholesale market transactions. This process ensures that the exchange rate is representative of actual market transactions, guaranteeing transparency and stability for companies and individuals operating with foreign currencies.

The FIX is determined each business banking day starting at 12:00 p.m. and is officially published in the Diario Oficial de la Federación (DOF) the following day. This data is vital, as it is used to settle dollar-denominated obligations and contracts that will be liquidated in Mexico.

What Was the Dollar’s Closing Price in Mexico on December 31?

The dollar closed at 17.952800 pesos on Wednesday, December 31, 2025, according to average data from banks and the interbank registry reported by Banco de México (Banxico) and specialized media. This value represents the weighted average with which exchange transactions were settled at the end of the trading day.

The official FIX exchange rate for settling dollar-denominated obligations, published in the Diario Oficial de la Federación (DOF), was 18.0012 pesos for the same day.

What is the Difference Between the Bank of Mexico Exchange Rate and the Market Price?

The main difference between the Bank of Mexico (Banxico) exchange rate and the market price lies in how they are calculated and used:

Banxico Exchange Rate (FIX):

• It is a reference rate determined and published daily by the Bank of Mexico, usually around noon.
• It is calculated from a weighted average of quotes collected from the wholesale exchange market during three specific periods in the morning, considering transactions that reflect prevailing market conditions.
• The FIX is used to settle obligations in foreign currency, banking operations, contracts, and settlements, and is the official reference in invoicing and institutional operations.
• It remains fixed until the next business day, so it is not updated in real time and tends to be more stable.

Market Price (spot exchange rate, banking rate, window rate):

• It is the value at which dollars are actually bought and sold at banks, exchange houses, or financial platforms, and may differ between institutions.
• This price varies constantly during the day according to supply and demand, economic expectations, monetary policy, news, and international factors.
• It is usually slightly higher for the public due to including commissions, profit margins, operating costs, and risk, which is why it is higher at the window than the FIX, and each bank offers different buying and selling prices.

Therefore, when you check a bank price, there is usually a difference of cents (sometimes more) compared to the FIX value. The FIX helps to provide order and transparency to the Mexican market, but does not determine the final price of each individual transaction.

How Does Inflation in the U.S. Affect the Peso Exchange Rate Today?

U.S. inflation directly influences the trend of the Mexican peso today, Thursday, January 1, 2026, by modifying market expectations about the Federal Reserve’s monetary policy and the dollar’s behavior:

• U.S. inflation affects the peso exchange rate, especially on days like today. If U.S. inflation is lower than expected, as it was today, it generates expectations that the Federal Reserve may cut interest rates or not raise them soon. This weakens the dollar against other currencies and generally strengthens the Mexican peso.
• Thus, low U.S. inflation today boosts the strength of the Mexican peso, as it reduces global demand for dollars and puts pressure on U.S. authorities to avoid tightening monetary policy. This causes the dollar exchange rate to have a downward trend against the Mexican peso during the day.

Mexican Peso to U.S. Dollar Exchange Rate Calculator

ABOUT THE AUTHOR

Piero Hatto is a journalist and SEO analyst for Diario El Comercio, with more than 8 years of experience in media such as Depor, Deporte Total, and Willax TV. Specialized in creating content in Spanish and English on sports, politics, science, technology and current affairs, for audiences such as Mexico, the United States, and Spain.