ACS, Actividades de Construcción y Servicios, S.A (ACSAF) fair value: what the stock is really worth
As of Oct 2, 2026: fair value of ACS, Actividades de Construcción y Servicios, S.A $110, price $105, upside +4.8%, quality 60 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
- Fair value above price? Yes
- Good quality? Yes
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ACS, Actividades de Construcción y Servicios, S.A
ACSAF · USNeutralThe stock looks roughly fairly valued with average quality.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Oct 3, 2026.
How to read this chart
60‑month range $6.03 – $160.45 · fair‑value band $73.54 – $146.61 · the $105.00 price screens below the $110.07 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Oct 3, 2026.
Company profile
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.
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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.
Stock analysis
ACS, Actividades de Construcción y Servicios, S.A (ACSAF) currently trades at $105.00, while our model-based Fair Value estimate is $110.07, so the stock looks roughly fairly valued today (gap 4.6%).
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Valuation
Bull case: the Growth DCF group reads highest at a median of $163.19 per share, and 13 of the 26 models we run sit above the $105.00 price.
Bear case: the Asset-Based group reads lowest at $13.66, and 13 of the 26 models stay below the price. Evidence for this calculation is high.
Scenario range: $73.54 (bear) to $146.61 (bull), the price of $105.00 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 60/100 (solid quality), in the Industrials sector.
Healthy Growth: Revenue growth appears healthy and is supported by profitability and cash-flow quality.
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.
Key figures
Market cap $38.8B · P/E ratio 23.8 · P/S ratio 0.45 · EPS (TTM) $4.42 · Dividend yield 1.1% · Net margin 1.9% · Return on equity 24.6% · Return on assets (EBIT) 5.5%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 44 out of 100 (low confidence).
What moves the price
For context, the median of 10 Industrials peers we cover trades at −33% fair-value upside, at 5%, ACSAF screens cheaper than that median.
Fair Value models
All 26 models by family
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Set up alert →Quality Score breakdown
Of which business quality 58 · Market factors (momentum, volatility) 66
Revenue & earnings trend
Growth Forecast
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Price, fair value, quality and upside side by side.
Peer Groupⓘ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.Engineering & Construction · 791 stocks
Valuation Multiplesvs Engineering & Construction median · lower = cheaper
Context: sector, industry, market
- Is the Industrials sector expensive or cheap?
- P/E, EV/EBITDA and margins by industry (reference tables)
- Undervalued stocks: Industrials
- Undervalued stocks: US Stocks
- Valuation of the USA market
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
Similar stocks
10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate.
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Quanta Services, Inc PWR | $642.51 | $162.77 | −75% |
| Vinci SA DG | €105.60 | €186.22 | +76% |
| Comfort Systems USA, Inc FIX | $1,658 | $1,116 | −33% |
| Larsen & Toubro Limited LT | ₹3,876 | ₹1,994 | −49% |
| Samsung C&T Corporation 028260 | 367,000 KRW | 159,718 KRW | −56% |
| Ferrovial N.V FER | $55.77 | $21.74 | −61% |
| HOCHTIEF Aktiengesellschaft HOT | €407.40 | €203.86 | −50% |
| EMCOR Group EME | $769.03 | $525.05 | −32% |
| Bouygues SA EN | €43.14 | €66.31 | +54% |
| WSP Global Inc WSP | C$182.05 | C$200.26 | +10% |
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Key figures of ACS, Actividades de Construcción y Servicios, S.A
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