
Context: How Bolsas y Mercados Argentinos (BYMA) works, and what it makes issuers disclose · Argentina on the LatAm Power Map
Every day, more than a million vehicles pour into Buenos Aires along the same two corridors — the northern motorway and the General Paz ring road. The company that runs both, Autopistas del Sol, is a quiet infrastructure monopoly hiding in plain sight on the Buenos Aires stock exchange.
| Full name | Autopistas del Sol S.A. |
| Ticker / exchange | AUSO — Bolsa y Mercados Argentinos (BA) |
| Headquarters | Uruguay 634, Buenos Aires, Argentina |
| Sector | Industrials — Infrastructure Operations |
| Employees | ~1,170 (last reported, 2021) |
| Market value | ARS 308.5 bn (~USD 211 m) (our calculation) |
| Yearly sales (revenue, TTM) | ARS 252.8 bn (~USD 173 m) (our calculation) |
| Net profit (FY 2025) | ARS 77.6 bn (~USD 53.1 m) (our calculation) |
| Net margin (TTM) | 14.1% |
| Return on equity | 11.2% |
| Price-to-earnings | 8.7× |
| Dividend yield | Not disclosed |
| Website | ausol.com.ar |
What it is
Autopistas del Sol runs Argentina’s government-granted concession to operate the North Access — a ~96 km motorway linking central Buenos Aires to the northern suburbs — and the 24 km General Paz beltway, the toll-free ring road that encircles the capital. More than one million vehicles use these roads every day, making Ausol the gateway for a substantial slice of all traffic entering and leaving the city.
The company was incorporated in 1994 and holds its roads under a long-term concession from the Argentine state — meaning it does not own the tarmac outright, but has the right to operate, maintain and charge tolls on it for the life of the contract.
Who owns it
Abertis, the Spanish-headquartered international toll-road group, manages Autopistas del Sol and is its controlling shareholder. An older disclosed ownership breakdown shows Abertis at 31.59%, alongside Italy’s Impregilo (now Webuild) at 19.82%, Argentina’s Sideco Americana at 7%, and Spain’s Dycasa at 5.83%, with the remainder in public hands.
The current precise split is not disclosed in available sources; EODHD data shows only 1.17% in institutional hands in free float, implying the controlling consortium holds the dominant majority.
Abertis itself is now owned by Italian conglomerate Mundys and the Spanish construction group ACS, together with German firm Hochtief, following a 2018 acquisition. Ausol is therefore ultimately a subsidiary of a European infrastructure empire, listed locally on the Buenos Aires exchange for Argentine investors.
Who runs it
Company filings from 2024 name Augusto R. Damiani and Alberto G.
Maquieira as senior signatories on the financial statements — the exact titles are not publicly disclosed in available sources beyond the filings. No named CEO or CFO is confirmed in current open sources; Ausol operates within Abertis’s regional management structure.
The money, in plain words
Ausol keeps about 14 cents of profit from every peso of toll revenue — a net margin of 14.1%, solid for an infrastructure operator under Argentine inflation pressure. For every peso shareholders have invested in the business, it earns back roughly 11 cents a year — a return on equity of 11.2%, modest but positive after two volatile years.
Revenue growth from FY2024 to FY2025 was +3.7% in nominal peso terms — effectively a real decline given Argentina’s inflation rate, though the company swung from a net loss of ARS 120.6 bn (USD ~82.5 m) in FY2024 back to a net profit of ARS 77.6 bn (~USD 53.1 m) in FY2025 (our calculations). At 8.7× earnings, the stock is priced cheaply by global infrastructure standards, reflecting Argentina’s sovereign and currency risk.
The company held ARS 21.8 bn (~USD 14.9 m) in cash at year-end 2025; no financial debt figure is disclosed in available sources, so net cash cannot be precisely stated.
What it is doing now
In early March 2026, the Argentine government authorised a toll increase for Autopistas del Sol, lifting the standard car fare from ARS 700 (US$0.48)to approximately ARS 1,000. (US$0.68)The increase came with a new penalty: drivers without an electronic tag (Telepase) now pay double, a deliberate push to move the network toward cashless collection.
The long-term aim is a fully barrier-free, all-electronic toll system — already used on some Buenos Aires urban motorways — though full implementation is not imminent. Across Argentina’s concessions, toll rates have been adjusted quarterly or even monthly in 2025–2026 to keep pace with chronic inflation.
What to watch
- Toll-rate rhythm. Ausol’s real revenue depends on whether the government lets fares track inflation. Any regulatory freeze hits margins directly.
- Concession life. Abertis reached an agreement with Buenos Aires to extend its concession contracts in exchange for a ~USD 430 m investment plan — how much of that capital commitment remains, and when the concession next expires, is the central valuation question.
- Cashless tolling. A full switch to electronic payment would cut operating costs and speed throughput; the pace of that transition is worth tracking.
- Currency. Ausol operates entirely in Argentina and trades locally, so currency and inflation dynamics are the dominant macro variables for any foreign investor.
Sources
- Autopistas del Sol — corporate website (ausol.com.ar)
- Autopistas del Sol — Quarterly financial statements, Q1 2024 (ausol.com.ar investor filing)
- Abertis press release — concession extension agreement with Argentina, 2018 (abertis.com)
- TransCore — Ausol shareholder disclosure (transcore.com)
- La Nación — 43% toll increase authorised, February 2026
- Wikipedia — Abertis ownership history
- Market data: EODHD.
This is news, not investment advice.
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