3i Infrastructure plc (3IN) Fair Value & Analysis

Financial Services · GB · Market cap 3.5B GBX

A solid business, screening 42% undervalued on our models.

What matters now

• The price is below even our cautious bear case (£4.08). The market is more pessimistic than our downside scenario.
• Solid quality (53/100) at a price below fair value, the discount is the argument here, not the business quality.
• For a financial, book-value and earnings-based methods matter more than a cash-flow DCF, which fits banks and insurers poorly.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 6, 2026.

How to read this chart

60‑month range £2.46 – £3.92 · fair‑value band £4.08 – £6.80 · the £3.84 price screens below the £5.44 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Aug 6, 2026.

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Analysis

3i Infrastructure plc (3IN) currently trades at £3.84, while our model-based Fair Value estimate is £5.44, implying the stock looks roughly 41.9% undervalued today. The Quality Score stands at 53/100 (solid quality), in the Financial 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: medium), always confirm before acting.

Over the trailing twelve months, 3i Infrastructure plc generated revenue of £409M at a net margin of 72.1%. Revenue declined 62.1% year over year. It earns a return on equity of 8.1%. Net debt stands at £531M. Fundamentals as of Aug 6, 2026

Our scenario range runs from £4.08 (bear case) to £6.80 (bull case); at £3.84, the current price sits below 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. For context, the median of 10 Financial Services peers we cover trades at -12% fair-value upside, at 42%, 3IN 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.

Widest divergence: Multiples (£4.16) versus Earnings-Based (£1.71). Highest evidence: Residual Income (76).

Key figures & financial health

Quality Score breakdown

About the company

3i Infrastructure plc is an investment firm specializing in infrastructure investments. The firm invests in early stage assets, mature assets, middle markets, mid venture, acquisitions, and projects and privatizations undergoing a period of operational ramp-up. It may invest in junior or mezzanine debt in infrastructure businesses or assets.

Full company description

3i Infrastructure plc is an investment firm specializing in infrastructure investments. The firm invests in early stage assets, mature assets, middle markets, mid venture, acquisitions, and projects and privatizations undergoing a period of operational ramp-up. It may invest in junior or mezzanine debt in infrastructure businesses or assets. The firm primarily invests in core infrastructure companies and assets with a focus on the utilities, transportation, energies, social infrastructure and adjacent sectors; primary PPP with a focus on greenfield projects in education, transport, healthcare; public sector accommodation sectors and low-risk energy projects with a focus on wind, solar, offshore transmission in developed markets; and mid-market economic infrastructure with a focus on low-risk energy projects. It primarily invests in unquoted companies, but may also invest in listed companies. The firm seeks to invest across the world, but with an initial focus on Europe, North America, Asia, the United Kingdom. It seeks to invest more than £50 million ($69.33 million) for an individual investment. The firm typically invests between £5 million ($6.93 million) and £50 million ($69.33 million) in primary PPP sector and £50 million and £250 million ($346.66 million) in low-risk energy projects in mid-market economic infrastructure. The firm seeks board representation in its portfolio companies and in cases where it acquires a majority equity interest in a business, that interest may also be a controlling interest. It primarily exits its investments between 20 to 30 years. 3i Infrastructure plc was founded on January 16, 2007 and is based in St. Helier, Channel Islands with an additional office in London, United Kingdom.

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

Revenue & earnings trend

FY2022 – FY2026 · reported fiscal years

3i Infrastructure plc reported revenue of £218M in FY2026 versus £412M in FY2022, a compound −14.7%/yr. Reported net income was £295M in FY2026, compounding −7.6%/yr from FY2022.

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Peer Group

Asset Management · 973 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 Asset Management 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.

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.