ACS, Actividades de Construcción y Servicios, S.A (ACS) Fair Value & Analysis
Industrials · ES · Market cap €31.9B
Fair value as of: Aug 13, 2026
From 26 valuation models · updated yesterday
Share price −8.3% over the past month.
A solid business, but screening 32% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (€93.80). The favourable scenario is already priced in.
- Solid but not exceptional quality (59/100) and above fair value, neither a clear bargain nor a standout compounder.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.
How to read this chart
60‑month range €16.05 – €138.35 · fair‑value band €54.45 – €93.80 · the €109.90 price screens above the €75.04 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Aug 13, 2026.
Analysis
ACS, Actividades de Construcción y Servicios, S.A (ACS) currently trades at €109.90, while our model-based Fair Value estimate is €75.04, implying the stock looks roughly 31.7% overvalued today. The Quality Score stands at 59/100 (solid quality), in the Industrials sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: high).
Over the trailing twelve months, ACS, Actividades de Construcción y Servicios, S.A generated revenue of €50.4B at a net margin of 2.0%. Revenue grew 4.7% year over year. It earns a return on equity of 24.6%. Net debt stands at €4.0B. Fundamentals as of Aug 13, 2026
Our scenario range runs from €54.45 (bear case) to €93.80 (bull case); at €109.90, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 22% below its 52-week high and 108% above its 52-week low, currently above its 200-day average. For context, the median of 10 Industrials peers we cover trades at -34% fair-value upside, at -32%, ACS screens cheaper than that median.
Fair Value models
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.
All 26 models by family
Widest divergence: DCF Models (€110.29) versus Asset-Based (€12.13). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 13, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 56 · Market factors (momentum, volatility) 71
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
About the company
ACS, Actividades de Construcción y Servicios, S.A. provides construction and related services in Spain, the United States, Australia, Canada, Germany, the rest of Europe, and internationally. It operates through five segments: Turner, CIMIC, Engineering and Construction, Infrastructure, and Other.
Full company description
ACS, Actividades de Construcción y Servicios, S.A. provides construction and related services in Spain, the United States, Australia, Canada, Germany, the rest of Europe, and internationally. It operates through five segments: Turner, CIMIC, Engineering and Construction, Infrastructure, and Other. The Turner segment offers comprehensive construction and project management services, focusing on high-tech growth markets, including data centers and battery plants, primarily in North America. The CIMIC segment delivers construction, services, and public-private partnership (PPP) solutions, and includes mining services through Thiess. The Engineering and Construction segment encompasses Dragados' activities in Europe and North America, as well as Hochtief's construction and PPP operations in Europe. The Infrastructure segment covers Iridium and ACS Digital & Energy, and manages a 50% equity interest in Abertis Infraestructuras, S.A., focusing on digitalization, energy transition, sustainable mobility, concessions, and traditional infrastructure across Europe, Latin America, and North America. The Other segment comprises real estate, renewable energy, water assets, facilities management, social and health services, and insurance activities. The company offers services such as public and private works construction, maintenance and operation of transport and urban infrastructure, building restoration, development and management of energy and digital infrastructure, environmental services, waste treatment, logistics, and auxiliary urban services. ACS, Actividades de Construcción y Servicios, S.A. was incorporated in 1942 and is based in Madrid, Spain.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
ACS, Actividades de Construcción y Servicios, S.A reported revenue of €49.8B in FY2025 versus €27.8B in FY2021, a compound +15.7%/yr. Reported net income was €950M in FY2025, compounding −25.3%/yr from FY2021.
of which total revenue +2.5 pp · buybacks/dilution +4.0 pp
Absolute contributions in percentage points per year; they sum to the EPS growth rate. Start and end points are 3-year averages (details on hover).
ACS screens 32% overvalued. Compare with Larsen & Toubro Limited →
Peer Group
Engineering & Construction · 839 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Engineering & Construction median · lower = cheaper
Snowflake
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
VALUE 0: the price sits above our fair-value range.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate (as of Aug 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Larsen & Toubro Limited LT | ₹4,020 | ₹1,994 | -50% |
| Samsung C&T Corporation 028260 | 357,500 KRW | 261,411 KRW | -27% |
| Hyundai Engineering & Construction Co 000720 | 113,700 KRW | 61,453 KRW | -46% |
| Samsung E&A Co 028050 | 49,300 KRW | 43,624 KRW | -12% |
| Rail Vikas Nigam Limited RVNL | ₹230.00 | ₹48.92 | -79% |
| Daewoo Engineering & Construction Co 047040 | 18,400 KRW | 6,507 KRW | -65% |
| KEPCO Engineering & Construction Company 052690 | 99,800 KRW | 19,346 KRW | -81% |
| GS Engineering & Construction Corporation 006360 | 35,200 KRW | 23,135 KRW | -34% |
| DL E&C Co 375500 | 73,500 KRW | 148,433 KRW | +102% |
| KEPCO Plant Service & Engineering Co 051600 | 45,400 KRW | 43,924 KRW | -3% |
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How we calculate Fair Value
Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.
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