Argentina Markets: Merval & the Peso — July 23, 2026

01 The session in one read

Argentina’s S&P Merval—the main stock index in Buenos Aires, measured in pesos—roared 2.98% higher on Wednesday to close at 3,379,771 points. It was a session where almost everything greenlit by the ‘Milei trade’ worked, and the few things that didn’t were marginal.

The buying was concentrated in the shares that matter most to a reform story: banks and energy. Banco Macro, which is highly sensitive to sovereign risk, surged 5.4%. Grupo Galicia, the private-sector banking bellwether, added a robust 3.9%. Together, these names signalled that investors are pricing in a better environment for credit and inflation.

Energy, the other pillar of the reform narrative, was right behind. Pampa Energía added 2.7% and YPF, the state-controlled oil and gas company that operates the vast Vaca Muerta shale formation, rose 2.3%. The moves were orderly and broad, with only minor losers scattered among the small-cap tier of the board.

The Argentine peso, meanwhile, slipped 0.33% to 1,483 against the US dollar. It’s a controlled decline within the government’s crawling-peg framework, and it is increasingly close to the 52-week low of 1,492. For Argentine investors, a gently weakening peso is precisely the backdrop that makes holding equities an attractive alternative to cash.

02 The day’s numbers

The Merval’s 2.98% daily jump is the kind of move that grabs attention on trading floors from São Paulo to New York. At 3,379,771 points, the index has recovered all of its recent soft patch and is pressing towards the top of its recent trading range.

The peso’s 0.33% decline to 1,483 per dollar is part of the government’s managed depreciation strategy, often called a ‘crawling peg’. Foreign investors care about this because a predictable peso slide helps anchor inflation expectations and keeps Argentina’s export competitiveness from eroding too quickly.

03 Why it moved — renewed confidence in the reform path

No single data release or headline triggered Wednesday’s rally. Instead, it felt like a mood shift. After a few weeks of political noise, traders in Buenos Aires sensed that the Milei administration’s reform push—centred on fiscal tightening, subsidy cuts, and energy deregulation—is finding a firmer footing in Congress.

When confidence in reforms rises even marginally, Argentine equities tend to re-rate quickly because they trade at deeply discounted valuations relative to regional peers. This is the engine of the ‘Milei trade’: a bet that Argentina is slowly moving from an uninvestable outlier toward a riskier but normalised emerging market.

The banks led the charge for a reason. Financial stocks are the most leveraged play on lower inflation and a healthier government balance sheet. If inflation falls and the state borrows less domestically, banks can lend more to the private sector and reduce their exposure to volatile sovereign debt. That story, even in its early stages, is powerfully bullish for Banco Macro and Grupo Galicia.

Energy shares, particularly YPF and Pampa Energía, were lifted by the same reform gravity. If the government allows energy prices to rise to market levels and cuts utility subsidies, these companies stand to see revenues and margins improve sharply—a prospect that keeps foreign and local desks engaged.

04 The day’s movers

Domestic names dominated Wednesday’s leaderboard. Banco Macro’s 5.4% surge on $5 million in turnover was the standout, reflecting a leveraged bet on improving credit conditions. Grupo Galicia, with a much deeper $20 million in volume, was the session’s anchor trade for institutional desks.

YPF was the volume king at $25 million, confirming its role as the most liquid proxy for Argentina’s reform story. Cresud, an agricultural real-estate company, added 4.3% in a quieter corner of the market. On the downside, steelmaker Ternium Argentina shed 1.6% in a minor pullback that traders shrugged off as profit-taking rather than alarm.

05 The regional scoreboard

Argentina’s 2.98% surge was the standout performance in Latin America on Wednesday. Brazil’s Ibovespa—the main stock index quoted in Brazilian reais—rose a strong 2.44%, continuing its own rally as rate-cut bets broaden in São Paulo.

Mexico’s IPC added a respectable 0.88%, and Chile’s IPSA edged up 0.50%. Only Colombia’s COLCAP slipped, down 0.19%, as idiosyncratic local factors kept Bogotá out of step with the regional risk-on mood. The live market board above carries the official closes for all regional indices.

06 The technical picture

The Merval’s 2.98% surge lifted the index back into the upper end of its multi-week trading range. With the close at 3,379,771 points, the market is now within arm’s reach of its recent highs, and chart-focused traders are watching closely to see if it can break decisively above resistance.

The peso is a mirror image. At 1,483 per dollar, it is just 9 pesos—less than 1%—away from its 52-week low of 1,492. A break beyond that level, if it comes, would signal an acceleration in the crawling peg and could inject a fresh dose of hedging demand into equities.

Volume on the day was concentrated in a handful of institutional-quality names—YPF at $25 million, Grupo Galicia at $20 million—suggesting that the move was driven by committed buyers rather than speculative scalping. For technicians, that breadth and volume profile supports the case that this rally has room to run, at least in the near term.

07 What to watch

• Congress and reform momentum: A tangible legislative win for the Milei administration on a fiscal or energy bill could propel banks and utilities much higher; a political setback would unwind this week’s gains swiftly.
• Country risk premium: Argentina’s sovereign spread—a measure of default risk—must begin to fall for the rally to reach beyond domestic money and attract international bond and equity funds.
• Peso crawling peg speed: If the dollar breaks above the 1,492 peso ceiling, expect a quick repricing of local assets as inflation expectations adjust and hedging appetite surges.
• Regional and global risk appetite: Strong sessions in Brazil and steadiness on Wall Street gave Buenos Aires cover to run; any souring in the global backdrop would test Argentina’s high-beta rally.

Background: Moody’s Argentina Upgrade Lifts Milei’s Turnaround.

Background: Argentina’s YPF Eyes Power IPO, Stock Split on Shale Surge.

Frequently Asked Questions

What is the S&P Merval?

It is Argentina’s main stock index, calculated in local pesos. It tracks the largest and most-traded companies listed on the Buenos Aires exchange (ByMA).

What is the ‘Milei trade’?

It is a shorthand for buying Argentine stocks and bonds based on the expectation that President Javier Milei’s libertarian reforms will stabilise the economy, lower inflation, and eventually restore growth and market access.

Why do the banks move so sharply?

Argentine banks hold significant government debt and their lending is tied to local inflation. Any sign of lower inflation or improved fiscal health directly boosts their profit outlook, making them a high-beta bet on reform.

What does the peso at 1,483 mean?

It means one US dollar buys 1,483 Argentine pesos. The rate is managed through a ‘crawling peg’ that allows a gradual daily depreciation to avoid a sudden shock while keeping exports competitive.

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