1&1 AG (1U1) Fair Value & Analysis

Communication Services · DE · Market cap €3.6B

Below-average quality, currently priced close to our fair value.

What matters now

• The price sits close to our fair value, market and models broadly agree here, little valuation tension.
• Our model range runs from €14.07 (bear) to €20.32 (bull), base €20.10. The closer the price sits to the lower half, the larger the margin of safety.
• Quality 42/100 (below-average quality) with high evidence: the data supports the verdict.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 16, 2026.

How to read this chart

60‑month range €9.38 – €27.21 · fair‑value band €14.07 – €20.32 · the €20.00 price screens below the €20.10 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 16, 2026.

Full chart & analysis →

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Analysis

1&1 AG (1U1) currently trades at €20.00, while our model-based Fair Value estimate is €20.10, implying the stock looks roughly 0.5% fairly valued today. The Quality Score stands at 42/100 (below-average quality), in the Communication Services sector. Bull case: trading below our estimate, it may offer upside if the fundamentals hold. Bear case: a low price can be a value trap when quality is weak or the data is thin (evidence: high), always confirm before acting.

Over the trailing twelve months, 1&1 AG generated revenue of €4.3B at a net margin of 3.2%. Revenue grew 12.5% year over year. It earns a return on equity of 2.2%. Net debt stands at €1.1B. Fundamentals as of Jul 16, 2026

Our scenario range runs from €14.07 (bear case) to €20.32 (bull case); at €20.00, the current price sits within 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 27% below its 52-week high and 10% above its 52-week low, currently below its 200-day average. For context, the median of 10 Communication Services peers we cover trades at 32% fair-value upside, at 1%, 1U1 screens richer 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.

Widest divergence: DCF Models (€22.76) versus Dividend Discount (€0.7600). Highest evidence: Residual Income (76).

Key figures & financial health

Quality Score breakdown

About the company

1&1 AG, together with its subsidiaries, operates as a telecommunications provider in Germany. It operates through three segments: Access; 1&1 Mobile Network; and 1&1 Versatel.

Full company description

1&1 AG, together with its subsidiaries, operates as a telecommunications provider in Germany. It operates through three segments: Access; 1&1 Mobile Network; and 1&1 Versatel. The company offers mobile internet, broadband products, and related applications, such as home networks, online storage, telephony, and smart home or international protocol television for residential customers and small and medium sized enterprises. It also owns and operates mobile network based on OPEN RAN technology; and the sale of telecommunication devices and accessories. In addition, the company provides fibre-optic networks comprising direct fibre connection to bespoke; and individual ICT solutions, such as voice, data, and network solutions. The company provides its products and services under the 1&1, WinSIM, Sim.de, yourfone, smartmobil.de, simply, PremiumSIM, and DeutschlandSIM brands. The company was founded in 1988 and is headquartered in Montabaur, Germany. 1&1 AG is a subsidiary of United Internet AG.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

1&1 AG reported revenue of €4.1B in FY2025 versus €3.9B in FY2021, a compound +1.4%/yr. Reported net income was €166M in FY2025, compounding −18.2%/yr from FY2021.

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Peer Group

Telecom Services · 252 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 Telecom Services 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.

Insider activity: 40/100

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.

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Frequently asked questions

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.