Argentina Markets: Merval & the Peso — August 4, 2026

01 The session in one read

Argentina’s stock market started the week with a controlled decline on Monday, as the benchmark S&P Merval index shed 0.51% to settle at 3,274,443 points. The move was less about panic and more about profit-taking — the kind of breather you expect after a rally built on President Javier Milei’s aggressive economic overhaul.

The real tension lay in the currency market, where the peso weakened another 0.59% to 1,494 per US dollar. That leaves the official rate just 0.4% shy of its weakest close of the past year, 1,500, a psychological line that traders and foreign investors watch like a hawk because it signals how much more purchasing power Argentines are losing each month.

At the stock level, the action was split. The most-traded domestic financial name, Grupo Galicia — a bank that is a direct play on the Milei reform story — rose 1.25% with chunky $7 million in turnover. On the losing side, state-controlled oil producer YPF fell 2.53% on $6 million in volume, a classic case of investors trimming a winner that has been at the heart of the energy liberalisation trade.

The broader US market provided no rescue. The S&P 500 surged 1.48% and the Nasdaq jumped 2.13%, but that strength mainly lifted Argentina’s cross-listed CEDEAR instruments — local certificates that track US shares like Microsoft, Meta, and Amazon — rather than domestic industrial stocks. Those CEDEARs dominated the volume board, reflecting a global tech rally that bypassed most local Argentine names.

02 The day’s numbers

The Merval’s 0.51% decline took it to 3,274,443 points, a level that still sits comfortably inside the strong uptrend that has defined Argentine equities since Milei took office. There is no sign of technical damage — the index remains near the upper end of its 52-week range, and the pullback barely registers against the triple-digit gains of the past eighteen months.

In the currency lane, the peso’s 0.59% slip to 1,494 is the number that demands the most attention. The official rate now trades within a hair’s breadth of the 1,500 ceiling, which the central bank has allowed to drift higher through a controlled crawling-peg mechanism. The 52-week range of 1,292 to 1,500 tells the full story of a managed depreciation that has become a fact of life for anyone holding peso-denominated assets.

03 Why it moved — profit-taking meets the crawling-peg reality

The Merval declined for a simple reason: it had climbed too far, too fast for some traders to resist cashing in. The Milei reform trade — a broad bet that deregulation, fiscal tightening and eventual dollarisation will transform Argentina’s economy — has powered local stocks to extraordinary gains over the past year, so a half-percentage-point dip qualifies as barely a ripple.

Energy shares, which have been among the largest beneficiaries of the government’s pro-market pivot, bore the brunt of Monday’s selling pressure. YPF, the state-controlled oil company that is being positioned for a potential privatisation or deep restructuring under Milei, fell 2.53% on some of the session’s heaviest domestic volume. Investors are taking the view that even the best reform story needs to pause for breath.

On the currency side, the peso’s 0.59% slide to 1,494 is entirely consistent with the monthly depreciation rhythm the central bank has maintained throughout 2026. Foreign investors tracking the so-called ‘carry trade’ — borrowing in dollars to buy high-yielding Argentine peso bonds — are watching the 1,500 level intensely, because a break above it could signal an acceleration of the crawl or a one-off adjustment, both of which would squeeze carry-trade returns.

Globally, a blockbuster session for US technology stocks — the Nasdaq surged more than 2% — gave Argentine traders an alternative playground. Volume data shows local investors poured into CEDEARs tracking Microsoft, Meta, Amazon and Nvidia, which collectively handled tens of millions of dollars in turnover. That flood of interest in US tech proxies may have starved some domestic names of fresh buying power.

04 The day’s movers

The volume leaderboard tells two distinct stories. The first is local: Grupo Galicia ($7m, +1.25%) stood alone as a genuine domestic winner with real institutional turnover, while YPF ($6m, -2.53%) and Pampa Energía (-0.90%) illustrated the profit-taking sweep across energy names. Adecoagro slipped 3.7%, though on relatively thin volume.

The second story is the CEDEAR bonanza. Microsoft ($21m, +5.4%) and Meta ($13m, +6.6%) posted eye-catching gains that mostly reflect the US tech rally and the peso’s depreciation — CEDEAR prices move with the underlying US shares converted at the local exchange rate. The S&P 500 tracker SPY ($7m, +1.6%) offered a cheaper way for local investors to ride the US session without picking individual winners.

05 The regional scoreboard

Monday’s regional scoreboard was a muted affair across Latin America’s major markets, with no index moving more than about half a percentage point in either direction. Brazil’s Ibovespa — the region’s biggest and most liquid stock market — finished dead flat as traders held fire ahead of the central bank’s interest-rate decision due later this week.

Chile’s IPSA managed a 0.30% gain, the session’s only outright positive among the regional benchmarks, while Mexico’s IPC shed 0.35% and Colombia’s COLCAP slipped 0.31%. The Argentine Merval’s 0.51% decline was the largest single drop on the board, but in a regional context it looks like a garden-variety breather rather than the start of something more serious.

06 The technical picture

The Merval’s technical structure remains firmly bullish, with the index holding comfortably above its major moving averages and showing no signs of a trend reversal. Monday’s 0.51% dip is best understood as a short-term overbought correction — the sort of pullback that replenishes buying power for the next leg higher, assuming the reform narrative stays intact.

The peso chart is a different animal entirely. The USD/ARS rate has traced a steady upward staircase throughout 2026, a visual representation of the central bank’s crawling-peg policy. With the rate now at 1,494, just 0.4% from the psychologically significant 1,500 mark, any daily close above that level would be the most important technical signal Argentine markets have seen in months — and would likely trigger a fresh wave of hedging by local corporates and foreign investors alike.

07 What to watch

• Peso crawling-peg ceiling: The 1,500 per dollar level is the number one variable for every Argentine asset class. A close above it, or any acceleration in the daily depreciation, would force a rapid repricing of stocks, bonds and carry-trade positions.
• YPF and energy-sector flow: After Monday’s 2.53% decline, YPF is the bellwether for whether profit-taking spreads or stabilises. Heavy volume selling in the oil major would signal a broader rotation out of the reform trade’s flagship names.
• Grupo Galicia and financials: Galicia’s 1.25% rise on strong turnover makes it the domestic counterweight to energy weakness. If financials continue to attract bids, it suggests the Milei trade is rotating rather than retreating.
• Country risk and bond spreads: Argentina’s sovereign bond spreads remain in high-risk territory and are the ultimate gauge of whether foreigners believe the reform story. A sustained drop below 1,500 basis points would be a powerful tailwind; a spike above 1,800 would rattle the whole equity index.

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More: Argentina news in English, every day from The Rio Times.

Frequently Asked Questions

What is the Merval index?

The S&P Merval is Argentina’s main stock-market benchmark, tracking the largest and most-traded companies listed on the Buenos Aires exchange. It is heavily weighted towards energy, financial and utility shares, making it a barometer for both the local economy and global commodity prices.

Why did the peso weaken to 1,494?

The peso’s slide is part of a controlled depreciation called a ‘crawling peg’, where the central bank allows the currency to weaken by a small amount each month. This 0.59% daily move is consistent with that policy, not a sudden shock.

What are CEDEARs?

CEDEARs are Argentine certificates that track foreign stocks — mostly US-listed companies like Microsoft or Apple — but trade locally in pesos on the Buenos Aires exchange. They let Argentine investors own international shares without opening a US brokerage account, and their price moves reflect both the foreign stock and the peso exchange rate.

Is the Milei reform trade still working?

Yes, but with caveats. Local stocks remain near multi-year highs and financial names continue to attract institutional money, reflecting confidence in deregulation and fiscal discipline. However, the peso’s steady depreciation and high country risk show that the macroeconomic transformation is still a work in progress, not a finished job.

Sources: RT market data; Banco Central de la República Argentina (BCRA); IMF.

This article was produced by The Rio Times’ automated AI newsroom. Editorial responsibility: Matthias Camenzind, Publisher and Editor-in-Chief. The Rio Times also runs Ask Rio Times, which answers from 100,000+ of our own articles, the daily Latin America Power Map, and prediction-market odds on elections and markets.. How we use AI · Report an error

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