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3i Infrastructure

3IN.L
54
Asset Management · Financial Services
Exchange
London Stock Exchange
Winston Score
54
Winston is curious
Mixed quality — meaningful strengths and weaknesses.
Data as of Aug 23, 2026 · filings through Mar 31, 2026
How the score breaks down
Quality
Good
Growth
Weak
Cash Flow
Weak
Stability
Exceptional
Valuation
Strong
Dividends
Strong

Winston Score History

The full picture

3i Infrastructure plc is a UK-listed investment company that puts money into infrastructure assets — things like roads, utilities, and essential services that people and businesses rely on every day. It is managed by 3i Group, one of Europe's oldest private equity and infrastructure investors, and its portfolio focuses mainly on mid-market infrastructure businesses across Europe and beyond. These are not flashy tech companies; they are steady, often regulated businesses that provide services society needs to function.

The company makes money by earning returns on its investments — through dividends, interest, and gains when it sells assets — and it pays much of that back to shareholders as dividends. It operates primarily in Europe, with a portfolio valued in the billions, and its main competitive advantage is access to deal flow and management expertise through its relationship with 3i Group. The key risk is that rising interest rates can reduce the value of infrastructure assets and make the company's dividend yield less attractive compared to safer alternatives like bonds.

Score breakdown

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Quality

Profit per sale
Gross Margin
68.9%
Premium pricing power — 68.9% gross margin
Profit after running costs
Operating Margin
43.7%
Excellent — 43.7% operating margin
Return on the money invested
ROCE
7.6%
Weak — 7.6% return on capital

ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.

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Growth

Sales growth
Sales YoY
-43.5%
Shrinking sales (-43.5% YoY)
Profit growth
EPS YoY
-11.1%
Earnings shrinking (-11.1% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is
EPS Consistency
3/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash
Cash Conversion
-11%
Weak — only -11% of profit becomes cash
Spare cash per sale
FCF Margin
-14.7%
Burning cash (-14.7%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

What it owes vs what it owns
Debt / Equity
0.14
Conservative — low debt load (0.14)
Covers its interest
Interest Cover
18.06x
Comfortably covers interest (18.1x)

Interest coverage above 8. Profits cover interest many times over.

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Valuation

Price vs profit
P/E Ratio (TTM)
12.2x
no trend
Attractive valuation — P/E 12.2

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year
P/E vs Forward
+3.3
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (12.2 → 8.9)

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Dividends

Dividend
Dividend Yield
3.44%
no trend
Moderate income — 3.44% yield

Standard yield zone for stable dividend payers. A meaningful piece of total return.

Dividend record
Dividend Growth
+44.3%
no trend
Dividend growing fast (44.3% YoY)

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