BUENOS AIRES — Inflation in Argentina ticked upward in September, reaching 1.9%, according to data released on Tuesday by the National Institute of Statistics and Censuses (INDEC).

The latest Consumer Price Index (CPI) report indicates a slight acceleration compared to August, when the monthly inflation rate dropped to 1.7%, marking what was then the lowest figure recorded in thirteen months. Despite the modest uptick of 0.2 percentage points, September’s figures maintain a broader downward trajectory for the South American nation’s economy. For the first time since the summer months of July and August 2025, the monthly inflation rate has remained securely below the psychological two percent threshold for two consecutive months, offering a glimmer of stability in a country long accustomed to acute price volatility.

While the headline inflation figure experienced a marginal rise, underlying economic indicators presented a more reassuring picture for policymakers and financial analysts alike. Core inflation—which strips out volatile components such as seasonal goods and regulated utility tariffs—stood at 1.7% in September. This represents a slight decrease from the 1.8% recorded in August and marks the lowest core inflation reading since July 2025, signaling that the fundamental price pressures within the economy continue to cool.

On an annualized basis, prices across Argentina rose by 33.4% over the twelve-month period ending in September. Meanwhile, cumulative inflation for the first nine months of the year reached 23.6%, reflecting a significant deceleration compared to the astronomical price increases that have plagued the country in recent years.

The impact of September’s price adjustments was not felt evenly across the nation’s diverse geographic regions. The Consumer Price Index varied notably by location, with the Greater Buenos Aires area and the economically vital Pampas region both recording monthly price increases of 2%. These figures placed them slightly above the national average of 1.9%.

Conversely, other regions across the country experienced more moderate price growth. The Northwest and Cuyo regions both posted monthly increases of 1.9%, matching the national headline figure. The Northeast region recorded a slightly lower inflation rate of 1.7%. Meanwhile, the remote southern region of Patagonia registered the lowest monthly inflation rate in the country, coming in at a modest 1.4%.

A closer examination of the categories driving the September index reveals that specific sectors exerted upward pressure on the headline number. Seasonal prices recorded the sharpest jump among major categories, rising by 2.9%. INDEC noted that this increase was driven primarily by upward movements in the costs of vegetables, tubers, and legumes.

Regulated prices also saw substantial gains, increasing by 2.3% during the month. This category was led higher by government-approved adjustments to utility bills and essential services, specifically gas, electricity, and prepaid healthcare costs.

When breaking down expenditure divisions, the largest monthly increase was registered in housing, water, electricity, gas, and other fuels, which surged by 3.1%. This was closely followed by the education sector, which recorded a 3% increase as schools and related services adjusted their fees.

On the other end of the spectrum, the smallest monthly increases were observed in discretionary and service-oriented sectors. Restaurants and hotels recorded an inflation rate of just 1.1%, while clothing and footwear prices rose by a relatively subdued 1.4%, reflecting weaker consumer demand in these retail categories.

Market Sees Positive Signs Amid Accelerating Headline Figures

Despite the slight acceleration in the headline inflation rate, financial markets and economic analysts have largely interpreted the September report through a constructive lens. Rather than panicking over the 1.9% figure, experts have focused on the underlying stability of core inflation and the fact that the results generally aligned with pre-release forecasts.

Sergio González, head of the Investment Office at the brokerage firm Cohen Aliados Financieros, pointed to the monthly decline in core inflation as the primary positive data point within the INDEC report.

"The acceleration came from volatile components and utility tariffs, not from the underlying price trend," González explained, emphasizing that temporary shocks rather than structural inflation failures were responsible for the month-on-month increase. He added that the headline figure was broadly in line with expectations held by market participants, meaning that the data should not come as a surprise to institutional investors or the broader financial community.

Federico Filippini, head of research at brokerage firm Adcap Grupo Financiero, expressed a similarly constructive view of the September data. Although he acknowledged that monthly inflation had accelerated compared to August, Filippini stated that "September’s figure offers a fairly positive reading."

Filippini highlighted two key factors supporting this assessment. First, he noted that the official INDEC figure came in below the higher projections that had been circulated by several private economic consulting firms ahead of the release. Second, he reiterated that the core inflation rate of 1.7% "reinforces the signal of an underlying slowdown" in the domestic economy.

Furthermore, Filippini noted that the overall result was viewed as a relief by market observers, particularly given that just a few weeks earlier, some participants in the financial sector had expressed fears of significantly worse macroeconomic results amid shifting monetary and fiscal policies.

Outlook for the Final Quarter of 2026

Looking ahead to the final quarter of the year, financial analysts anticipate that monthly inflation rates will stabilize and potentially resume their downward path, even if progress remains gradual.

González noted that the market consensus expects monthly inflation to hover around 1.8% in the coming months, "which implies a slight slowdown from September’s reading." This view is largely supported by official macroeconomic tracking mechanisms.

The latest Market Expectations Survey (REM), compiled and published monthly by the Central Bank of the Argentine Republic (BCRA), previously put the median private-sector forecast for September at 1.9%, matching the exact figure reported by INDEC. Looking further into the final stretch of 2026, the survey’s average forecasts point to continued low-level stability.

According to the central bank’s survey data, the average private-sector forecast projects monthly inflation to tick down to 1.7% in October, followed by a further decline to 1.6% in November. However, forecasters anticipate a minor seasonal rebound to 1.8% in December, driven by holiday demand and end-of-year spending patterns.

Based on these rolling monthly projections, annual inflation for the entirety of 2026 is expected to reach approximately 30%. This would represent a dramatic cooling of price dynamics compared to the hyperinflationary pressures of prior years, marking a substantial milestone for the government’s stabilization programs.

International financial institutions are monitoring Argentina’s economic trajectory with similar cautious optimism, alongside realistic assessments of ongoing risks. In its most recent update on the Argentine economy, the International Monetary Fund (IMF) projected that inflation would conclude the year at 32.5%. This updated estimate represents a slight upward revision from the Fund’s previous projection of 30.4% issued in April, reflecting the stubborn persistence of inertia in certain sectors of the economy as the government works to dismantle legacy price controls and normalize public finances.

As Argentina moves into the final months of 2026, economists and policymakers will continue to watch consumer price reports closely to determine whether the sub-two-percent monthly inflation rate can be sustained as a permanent baseline for the country’s economic recovery.