A global dollar rally—the DXY index rose 3% in June—has sent tremors through emerging markets, with Argentina’s peso bearing the brunt. The currency’s 6.5% depreciation over the past thirty days is the steepest since the pre-election turmoil of last year, abruptly ending a period of calm and testing a disinflation process that had only just begun to consolidate after ten months of accelerating prices.

In Buenos Aires, the central bank has not sold dollars in the spot market; the peso remains comfortably within its crawling band. Instead, it has shifted intervention to the futures and bond markets, aggressively offloading dollar-linked securities to smooth the depreciation curve without stoking inflation expectations. The pricing of the TZV26 bond, scheduled for today, has added a layer of short-term volatility, as institutional traders push the exchange rate higher ahead of the fixing. The central bank’s daily dollar purchases have meanwhile halved from $140 million to below $80 million, reflecting the ebbing of the agricultural export season.

The Argentine stress test unfolds against a backdrop of diverging inflation dynamics elsewhere. In Brazil, the mid-month IPCA-15 rose just 0.41%, below market forecasts, aided by falling fuel prices, though the 12-month rate remains elevated at 4.8% and the El Niño weather pattern threatens food and energy costs. The central bank in Brasília projects a gradual decline to 3.2% by early 2028, and markets anticipate further Selic rate cuts. In the eurozone, consumers’ median inflation expectations for the year ahead fell to 3.5% in May from 4.0%, but perceived past inflation held at 4.0%, the highest since mid-2024. The ECB, which raised rates in June, warns that while the current shock is smaller than the previous episode, inflation could remain above target for an extended period.

A sharp drop in oil prices—Brent crude fell back toward $70 a barrel on signs of US-Iran rapprochement—has provided a disinflationary tailwind, but its durability is uncertain. In Argentina, some analysts note that the real exchange rate still lags cumulative inflation, suggesting room for further nominal depreciation without derailing the expected decline in monthly inflation to below 2%. The next factual milestones are the Argentine June inflation print and the ECB’s July policy meeting, where updated staff projections will reveal whether the global disinflation trend is consolidating or facing new headwinds.