ATLASMerval today: level, companies and odds
The Merval brings together 12 companies. ATLAS covers 12 of them, the largest being YPF S.A. D, Grupo Financiero Galicia, and Pampa Energia. This page shows each member's price, how far it trades from ATLAS fair value and the model probability of a higher close in a month.
The S&P Merval is the benchmark index of the Buenos Aires stock exchange and tracks its most liquid Argentine companies.
Data as of Oct 27, 2026.
ATLAS breadth
4 of 12 members (33%) have a probability above 50% of closing higher in a month in ATLAS's model.
Of 10 members with a fair value estimate, 5 trade at least 8% below it and 3 at least 8% above; the median gap is -10%.
How to read it: ATLAS's calibrated model uses the same long-run drift for every stock, so the share above 50% mostly reflects how many members are calm enough (low volatility) to sit above a coin flip. It gauges how calm the index is, not where it is going.
Best and worst members on the last close
Best
| TXAR.BATernium Argentina | ARS 784.50 | +1.1% |
|---|---|---|
| YPFD.BAYPF S.A. D | ARS 8,260 | -1.1% |
| BYMA.BABolsas y Mercados Argentinos | ARS 240.50 | -1.1% |
| METR.BAMetrogas | ARS 2,390 | -1.6% |
| VALO.BABanco de Valores | ARS 510.00 | -1.9% |
Worst
| TRAN.BACompania de Transporte de Energia Electrica en Alta Tension Transener | ARS 2,353 | -5.1% |
|---|---|---|
| GGAL.BAGrupo Financiero Galicia | ARS 5,960 | -4.8% |
| CRES.BACresud | ARS 1,809 | -4.2% |
| TGNO4.BATransportadora de Gas del Norte SA Class C | ARS 2,903 | -3.5% |
| TGSU2.BATransportadora de Gas del Sur SA B | ARS 8,750 | -2.6% |
Moves are for the latest stored close of each stock.
All Merval companies
Weights are each member's share of the combined market value of the 12 companies listed here: an estimate, not the official index weighting.
| # | Company | Price | 1 day |
|---|---|---|---|
| 1 | YPFD.BAYPF S.A. D | ARS 8,260 | -1.1% |
| 2 | GGAL.BAGrupo Financiero Galicia | ARS 5,960 | -4.8% |
| 3 | PAMP.BAPampa Energia | ARS 5,140 | -2.1% |
| 4 | TGSU2.BATransportadora de Gas del Sur SA B | ARS 8,750 | -2.6% |
| 5 | TXAR.BATernium Argentina | ARS 784.50 | +1.1% |
| 6 | ALUA.BAAluar Aluminio Argentino | ARS 868.00 | -2.1% |
| 7 | BYMA.BABolsas y Mercados Argentinos | ARS 240.50 | -1.1% |
| 8 | METR.BAMetrogas | ARS 2,390 | -1.6% |
| 9 | CRES.BACresud | ARS 1,809 | -4.2% |
| 10 | TRAN.BACompania de Transporte de Energia Electrica en Alta Tension Transener | ARS 2,353 | -5.1% |
| 11 | VALO.BABanco de Valores | ARS 510.00 | -1.9% |
| 12 | TGNO4.BATransportadora de Gas del Norte SA Class C | ARS 2,903 | -3.5% |
Sector mix
Energy is the biggest sector with 58% of the combined market value of the members.
How this page is built
Members: the list of companies in the Merval comes from an index-data provider and is refreshed every week. Companies ATLAS does not publish (too small, no data or not listed in the country) are left out, so this page covers 12 of 12.
Price, fair value and probability come from the same stored data as each company page; probabilities use ATLAS's calibrated one-month model. The index level and daily change are for the last close of the index.
Limits: this is not the official index factsheet. Weights are estimated from market value, probabilities are not forecasts, and nothing here is investment advice.
Frequently asked questions
What is the Merval?
The S&P Merval is the benchmark index of the Buenos Aires stock exchange and tracks its most liquid Argentine companies. ATLAS covers 12 of its 12 members.
Which are the biggest companies in the Merval?
By market value the largest members are YPF S.A. D, Grupo Financiero Galicia, and Pampa Energia. Together the top three make up 73% of the combined market value of the 12 members listed here.
How many companies are in the Merval?
The index has 12 members; ATLAS publishes 12 of them.
What does ATLAS breadth mean for the Merval?
It is the share of members whose probability of closing higher in a month is above 50% in ATLAS's calibrated model: 33% today (4 of 12). Because the model uses one long-run drift for all stocks, it mostly measures how calm the members are. It is not a forecast for the index.
Which Merval stocks moved the most on the last close?
On the latest stored close, Ternium Argentina rose the most (+1.1%) and Compania de Transporte de Energia Electrica en Alta Tension Transener fell the most (-5.1%) among members.
Can I invest in the Merval?
An index is a list, not a product, so you cannot buy it directly. Funds that replicate it exist in many markets, but ATLAS does not recommend products. Check costs, taxes and currency before choosing any.
How often is this page updated?
Prices and probabilities are refreshed every day and the page is rebuilt at least every 6 hours. The member list is refreshed every week.
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Information only, not investment advice. ATLAS estimates come from statistical models using public data; they can be wrong, and past results do not guarantee future ones. Disclaimer