Archive · 5 min read
Thursday, October 8, 2026
This edition reflects the information available when it was published.
The week so far
This week in Mexico
5 developments shaping business decisions in Mexico this week.
Ranked by business relevance and urgency. Coverage through October 8.
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Mexico's annual inflation rose to 3.45% in September
The annual rate was 3.26% in August. INEGI's October 8 report shows fruit and vegetable prices rose 4.40% from August, with tomatoes and onions among the main contributors to September's overall price increase.
Context
A separate measure called core inflation excludes agricultural products, energy and charges authorized by the government. It still includes processed foods, other goods and services. Its annual rate fell from 3.88% in August to 3.75% in September.
Why it matters
Households still have to buy fresh food, so the jump in fruit and vegetable prices can raise their grocery bills even as core inflation slows. The lower core rate means a slower annual increase in the prices it covers. Prices are still rising on average.
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Mexico's production of cars and light trucks fell 15.1% in September and exports dropped 11.9%
INEGI's preliminary figures, released October 7, show both declines against September 2025. Vehicle sales inside Mexico rose 7.9% year on year.
Context
Sales at Mexican dealerships include imported vehicles as well as those made in Mexico. Production counts vehicles built here, including those sent abroad. The U.S. was the main destination for Mexican vehicle exports during the first nine months of 2026.
Why it matters
Selling an imported car brings business to a Mexican dealer without adding work at a local assembly plant. That helps explain how domestic sales can rise while production and exports fall. The manufacturing outlook depends on demand for vehicles made in Mexico, including purchases from abroad.
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IMSS will add detailed employer contribution notices to its digital mailbox
An agreement published October 8 approves adding detailed notices of social-security contributions to Buzón IMSS, the institute's online mailbox for employers. The agreement takes effect October 9.
Context
IMSS prepares proposed contribution notices using the worker information employers report. The added forms list workers and changes for each monthly or two-month period. Employers with several registration numbers will be able to consult their notices in the same portal.
Why it matters
Comparing the institute's worker list with payroll records can reveal missing or outdated information before payment. Employers can then make any necessary changes in the system they use to calculate contributions. Having the notices in one portal should make that review easier.
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Adventus raises MX$560 million in the Mexican exchange's first simplified debt issue
Adventus Capital completed the debt sale on October 7, Bloomberg Línea reports. The new process is intended to make it quicker and cheaper for smaller companies to get funding through the Mexican Stock Exchange.
Context
The issue is backed by payments on a loan already made to Michoacán, plus other investments. Those assets supply the money used to pay investors. Adventus can raise money now by selling the right to those future payments.
Why it matters
The first deal relies on an existing stream of payments. A small business borrowing to expand would need to convince investors that its future operations could repay the loan. Access would broaden if such businesses could also raise money this way.
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Passenger traffic at ASUR's Mexican airports fell 6.1% in September
Domestic traffic fell 3.7% from September 2025, after growing 4.1% year on year in August. International traffic also declined, ASUR said in its October 7 report.
Context
ASUR operates nine airports in southeastern Mexico, including Cancún. Traffic growth in Colombia, Puerto Rico, Brazil and Ecuador helped keep the group's September total nearly unchanged, even as its Mexican airports handled fewer passengers.
Why it matters
Fewer travelers mean fewer potential customers for airport shops and restaurants and fewer passenger movements on which to collect fees. That can weigh on ASUR's Mexican revenue. The final effect also depends on fees and spending per traveler.
Coverage through 2026-10-08.