Argentina Markets: Merval & the Peso — August 27, 2026
Key Facts
- The Merval closed at 3,024,971.01, up 0.53% or about 15,942 points, its third straight gain.
- The peso weakened to 1,514 per dollar in wholesale trade, a fourth straight daily rise for the greenback, with the retail rate at 1,530.
- Transener surged 4.9% to top the local board, with gas distributor Metrogas adding 3%.
- Country risk rose 1% to 517 points while government bonds slipped, a split-screen session where stocks held gains but debt investors turned cautious.
- The lower house gave first-round approval to the Central Bank charter overhaul, which would end temporary advances to the Treasury; the bill now goes to the Senate.
Today’s Focus
Argentina’s S&P Merval — the main Buenos Aires stock index — rose 0.53% to 3,024,971.01 on Wednesday, a third straight gain, even as the peso slipped to 1,514 per US dollar in wholesale trade.
Utilities led the board. Transener, the high-voltage power transporter, jumped 4.9%, and Metrogas, the gas distributor, added 3%.
Yet the broader picture held a warning sign. Country risk — a gauge of how much extra yield investors demand to hold Argentine debt — rose 1% to 517 points as government bonds fell.
The pressure came from a heavy month-end calendar. Importers and companies rushed to buy dollars, while the Treasury faces roughly 12.6 trillion pesos of maturities at Thursday’s auction.
What matters today. Stocks held their grind higher, but the peso’s fourth straight slip and rising country risk show investors still want more proof on Argentina’s reform path.
01 The session in one read
Buenos Aires traders kept faith with stocks on Wednesday, pushing the S&P Merval — Argentina’s benchmark share index — up 15,942 points to 3,024,971.01. The 0.53% advance marked a third consecutive winning day, though in dollar terms the index was slightly lower, near 1,882 points.
Utilities and energy names did the heavy lifting. Transener rose 4.9% and Metrogas 3%, while aluminium maker Aluar fell 2.1%.
But the currency market told a more cautious story. The peso weakened 0.2% to 1,514 per US dollar in wholesale trading, the fourth straight daily rise for the greenback. At Banco Nación’s retail window, the dollar sold at 1,530, while the informal ‘blue’ dollar traded near 1,560.
Country risk — the premium over US Treasuries investors demand to hold Argentine bonds — rose to 517 points while Globales bond prices slipped 0.2% to 0.4%. It was a split-screen session: stocks betting on the reform story, bonds fretting over the harder numbers.
The session offered a lesson in how Argentina’s market splits. Stocks kept feeding on the Milei reform story — the Central Bank charter overhaul won first-round approval in the lower house on Wednesday — while bond traders focused on the harder question of financing stress at month-end.
That simultaneous rise in stocks, the dollar and country risk suggests the rally is being driven more by positioning and local liquidity than by a fundamental improvement in creditworthiness. The variable to watch is whether the wholesale peso breaks decisively above the 1,514 area, which could accelerate the depreciation and rattle the stock market’s gains.
02 The day’s numbers
| Measure | Level | Change | Read |
|---|---|---|---|
| S&P Merval | 3,024,971.01 | +0.53% | Third straight rise |
| USD/ARS (wholesale) | 1,514 | +0.2% | Fourth straight daily rise for the dollar |
| Retail dollar (Banco Nación) | 1,530 | — | Sell rate; informal ‘blue’ dollar near 1,560 |
| Country risk | 517 points | +1% | Up as Globales bonds fell 0.2–0.4% |
| Central Bank reserves | +US$61 million | — | August purchases now total US$548 million |
The Merval’s close extends a run that began with Monday’s 2.8% jump and continued with Tuesday’s 0.46% gain. The index is holding above the 3 million-point line it crossed on Tuesday.
The peso’s slide looks small, but it comes with heavy month-end demand for dollars and a Treasury auction on Thursday that must refinance some 12.6 trillion pesos of maturities — close to US$8.3 billion at current exchange rates. Rio Times · Live Market Intelligence
Live Market IntelligenceArgentina — Live Market Board
Argentina — Live Market Board
Instrument Last Change YoY Prev. High Low Volume
MERVAL
3,024,971
+0.53%
+30.51%
3,022,485
3,042,365
2,991,150
—
USD/ARS
1,493
+0.10%
+12.96%
1,491
1,494
1,480
—
YPF
7,810
+0.26%
+72.84%
7,790
7,850
7,600
1,763,858
GGAL
6,980
-0.78%
+1.82%
7,035
7,115
6,920
1,564,062
PAMPA
5,115
+0.69%
+26.70%
5,080
5,140
5,000
721,190
TXAR
747.50
-2.35%
+18.67%
765.50
770.00
742.50
771,892
ALUAR
938.00
-1.21%
+29.83%
949.50
951.00
932.50
135,426
TGS
8,870
-0.17%
+15.05%
8,885
9,075
8,720
143,546
CEPU
2,156
+1.84%
+28.36%
2,117
2,165
2,086
404,146
MIRGOR
1,650
-1.20%
-92.90%
1,670
1,670
1,635
20,877
COME
40.93
-0.73%
-30.47%
41.23
41.60
40.50
4,258,884
LOMA NEGRA
3,130
+0.08%
+5.80%
3,128
3,205
3,090
182,992
BYMA
275.00
-1.70%
+35.14%
279.75
282.50
272.00
1,409,575
TELECOM ARG
4,233
-0.70%
+55.19%
4,263
4,335
4,160
31,896
GLOBANT
38.10
-2.26%
-49.65%
38.98
38.70
36.77
793,552
MERCADOLIBRE
1,870
-3.59%
-20.71%
1,940
1,927
1,870
329,640
03 Why it moved — a reform vote and month-end dollar demand
The Central Bank charter reform cleared a crucial hurdle on Wednesday, winning first-round approval — media sanción — in the lower house by 144 votes to 102. The bill now goes to the Senate.
The overhaul would end temporary advances from the Central Bank to the Treasury — one of the main engines of past money-printing — ban new non-transferable letters, and make it easier to remove central bank directors.
For investors, that is fresh evidence the Milei government is serious about locking in fiscal and monetary discipline. Markets chose to focus on the direction of travel rather than the legislative finish line.
Yet reform enthusiasm collided with heavy month-end dollar demand. The Central Bank itself bought US$61 million in the currency market — its third-biggest daily purchase of the month, taking the August total to US$548 million — even as the peso weakened for a fourth day.
04 The day’s movers
| Driver | Level / Move | Change | Note |
|---|---|---|---|
| Transener | TRAN | +4.9% | Top gainer on the local board |
| Metrogas | METR | +3.0% | Gas distributor among the leaders |
| Aluar | ALUA | −2.1% | Worst fall among big names; aluminium maker |
| New York-listed ADRs | TEO, CRES, SUPV | −1.4% to −1.5% | Argentine shares abroad slipped |
Transener, the high-voltage electricity transporter, surged 4.9% to lead the local board, with Metrogas — the gas distributor that trades under the METR ticker — adding 3%. Aluminium producer Aluar went the other way, falling 2.1%.
Argentine shares listed in New York had a softer day. Telecom, Cresud and Supervielle ADRs each fell around 1.4% to 1.5%, mirroring the caution visible in the bond market.
05 The regional scoreboard
| Index | Country | Change |
|---|---|---|
| S&P Merval | Argentina | +0.53% |
| Ibovespa | Brazil | +0.01% |
| IPC | Mexico | −0.15% |
| IPSA | Chile | −0.70% |
Argentina posted the region’s best performance on Wednesday. Brazil’s Ibovespa was essentially flat at +0.01%, while Mexico’s IPC dipped 0.15% and Chile’s IPSA fell 0.7%.
That mix shows local stories dominating the region: a reform vote in Buenos Aires, hot US inflation data weighing on São Paulo and Santiago, and a central-bank report day in Mexico City.
06 The technical picture
The Merval’s close at 3,024,971.01 keeps it above the 3 million-point line it crossed on Tuesday. Three straight gains suggest buyers control the short-term trend, but the peso matters more for direction now than the index itself.
USD/ARS at 1,514 is the number every trader is watching. A decisive break above that level would signal the depreciation is accelerating, likely adding fuel to stocks in peso terms but increasing dollar-based risk.
A retreat toward 1,500 would ease the inflation pulse underpinning the rally. Thursday’s Treasury auction — and how much of the 12.6 trillion pesos in maturities gets rolled over — is the next hard test.
07 What to watch
- Peso levels: Whether USD/ARS pushes past 1,514 or retreats toward 1,500 — the top variable for all Argentine assets.
- Thursday’s Treasury auction: Some 12.6 trillion pesos of maturities need refinancing after this week’s trillion-peso swap between the Treasury and the Central Bank.
- Country risk: Rising country risk alongside stock-market gains is a divergence that could force a correction if it widens further.
- The Senate vote: The Central Bank charter bill’s path through the Senate would anchor the credibility story investors are pricing.
Background: Argentina Public Works Funds: US$3 Billion Held Back.
Frequently Asked Questions
What is the Merval?
The S&P Merval is Argentina’s main stock index, tracking the largest companies listed on the Buenos Aires exchange. A 0.53% gain to 3,024,971.01 means the index advanced 15,942 points on Wednesday.
Why did the peso weaken?
Heavy month-end dollar demand, with a big Treasury auction due on Thursday, pushed the wholesale rate to 1,514 per dollar — a fourth straight daily rise. The Central Bank bought US$61 million, taking its August purchases to US$548 million.
What is country risk?
Country risk measures how much extra yield investors demand to hold Argentine government bonds over US Treasuries. It rose 1% to 517 points on Wednesday even as stocks gained, a sign bond traders are more cautious than share buyers.
Which stocks led the move?
Transener jumped 4.9% to top the local board and Metrogas gained 3%, while Aluar fell 2.1%. Argentine ADRs such as Telecom and Cresud slipped in New York.
Market data: RT; exchange figures from BYMA
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error
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