MEXICO CITY, July 13 (Reuters) – The Mexican peso tumbled against the U.S. dollar on Monday, driven by a sudden escalation in U.S.-Iran tensions near the Strait of Hormuz. The currency, a bellwether for emerging-market risk, weakened by 1.8% intraday as of 10:00 AM local time.
The USD/MXN rate surged to 18.45 pesos per dollar, up from Friday’s close of 18.12. At major Mexican banks, buy-sell spreads widened significantly. Banamex quoted the dollar at 17.90 for purchases and 18.70 for sales. Banorte reported rates of 17.85 and 18.65. BBVA listed 17.95 and 18.75. The spread reflects heightened uncertainty among traders.
Renewed hostilities between the Trump administration and Iran have spiked global oil prices. The Strait of Hormuz carries 20% of the world’s oil. Mexico, as a major oil exporter and emerging market, faces a dual blow: higher import costs and capital flight. Investors dumped peso-denominated assets, seeking safe-haven currencies like the dollar and yen.
The peso’s depreciation is the sharpest since the January 2020 U.S.-Iran standoff. Trading volumes on USD/MXN pairs spiked 40% above the 30-day average, indicating panic selling. Analysts at El Financiero noted the peso often reacts first to Middle East shocks due to Mexico’s proximity to the U.S. and its oil-linked economy.
For Mexican businesses and travelers, the volatility is immediate. Converting pesos to dollars now costs more. Remittance senders may benefit from the higher dollar rate, but the window could close quickly. “Lock in rates now if you need dollars for upcoming trips,” said Carlos Ramirez, a currency strategist at HA Viewpoint. “Further depreciation is possible.”
Market Reaction: How Much Has the Peso Depreciated Against the Dollar Today?
The peso has weakened 1.8% intraday. This extends weekly losses to 2.3%. The decline mirrors the pattern seen during the January 2020 Iran-U.S. standoff, when the peso lost 2.5% in a single session. The trigger is identical: geopolitical risk in the Strait of Hormuz.
Technical support for USD/MXN is at 18.30, with resistance at 18.60. A de-escalation in the Strait of Hormuz could trigger a peso rally, pushing rates back below 18.20. Further conflict may push rates past 18.80. Watch for U.S. inflation data and Mexican economic indicators later this week.
| Bank | Buy Price (MXN per USD) | Sell Price (MXN per USD) |
|---|---|---|
| Banamex | 17.90 | 18.70 |
| Banorte | 17.85 | 18.65 |
| BBVA | 17.95 | 18.75 |
| Santander | 17.88 | 18.68 |
The peso remains highly sensitive to Middle East headlines. Any escalation could deepen losses. The Strait of Hormuz conflict is reshaping USD/MXN rates this week, and traders are bracing for more turbulence.
💡 Frequently Asked Questions (FAQ)
- Q: Why did the Mexican peso drop against the U.S. dollar?
- A: The Mexican peso weakened due to a sudden escalation in U.S.-Iran tensions near the Strait of Hormuz, which spiked global oil prices and triggered capital flight from emerging-market assets.
- Q: What was the USD/MXN exchange rate after the drop?
- A: The USD/MXN rate surged to 18.45 pesos per dollar, up from 18.12 at Friday’s close, with major banks reporting widened buy-sell spreads.
- Q: How did Mexican banks react to the peso’s depreciation?
- A: Banks like Banamex, Banorte, and BBVA widened their buy-sell spreads significantly, reflecting heightened uncertainty and trader panic.
- Q: What impact does the Strait of Hormuz tension have on Mexico?
- A: Mexico faces higher import costs and capital flight as a major oil exporter and emerging market, with the peso often reacting first to Middle East shocks due to its oil-linked economy.
- Q: Is the peso’s drop part of a larger trend?
- A: The depreciation is the sharpest since the January 2020 U.S.-Iran standoff, with trading volumes spiking 40% above the 30-day average, indicating panic selling.
Extended Reading
For real-time updates on the Mexican peso and dollar exchange rates, refer to El Financiero’s market coverage from July 13, 2026. The publication reported the peso was notably affected by the Trump-Iran conflict in the Strait of Hormuz, falling against the dollar early today. Yahoo Finance also tracked the peso’s depreciation amid uncertainty in Ormuz, noting the currency’s sensitivity to geopolitical risk. HA Viewpoint, a Mexico City-based financial advisory firm, continues to monitor the situation. Its analysts emphasize that the peso’s fate hinges on de-escalation or further conflict in the Middle East. The firm holds no proprietary positions in USD/MXN pairs but advises clients to hedge against volatility.