Research memo3i Group plc (III.L) · LSEMemo of October 15, 2026

3i stock forecast

The weighted 3i forecast is 3,295.66p in October 2029, including dividends. It hinges on Action’s earnings, valuation and cash generation.

2,406.00
Share price today, GBp
3295.66 (+48%)
Weighted scenario, October 2029
3.7%
Real free cash flow yield
4.1x
P/E, next 12 months
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Every number traced to 3i's filings8 chapters · 16,517 words174 sources cited

Where could 3i’s shares be by October 2029?

The weighted forecast is 2,551.49p in October 2027, a 10% return including dividends. By October 2029, it is 3,295.66p, a 48% return including dividends. The forecast assigns 30% to the bear case and 50% to the base case. The bull case gets 20%.

The weighted price reaches 2887.67 in October 2028, equivalent to a 28% return. But the range remains wide: by October 2029, the bear case is 1925.54 and the bull case is 4842.46, compared with today’s 2406.00.

Share price in October 2029: our three scenarios (GBp)Today 24.061925.54Bear · 30% · -10%3499.02Base · 50% · +57%4842.46Bull · 20% · +115%
What the shares could be worthGBp per III.L share at each date; in brackets the return since today's 2406.00, dividends included
CaseProbabilityOctober 2027October 2028October 2029
Bear30%2158.83 (-7%)2045.85 (-8%)1925.54 (-10%)
Base50%2645.23 (+14%)3040.85 (+34%)3499.02 (+57%)
Bull20%2906.14 (+25%)3767.42 (+65%)4842.46 (+115%)
Weighted100%2551.49 (+10%)2887.67 (+28%)3295.66 (+48%)

What this means. The weighted row is the probability-based average of the bear, base, and bull cases, not a separate prediction.

What has to go right or wrong for 3i?

NAV is the main engine. The forecast starts from an estimated current book value of about £31,150m, based on post-dividend NAV and the reduced share count. The base case grows NAV to £43,515m by October 2029, using the company’s 15% annual total-return target as its planning anchor. The bear case reaches only £32,780m because slower Action growth and weaker marks absorb much of that return. The bull case reaches £49,779m because Action sustains earnings growth and exits support carrying values.

How much cash does 3i really make?

The conventional bridge also looks healthy. Cash from operations was £998 million. After capital spending, lease payments and interest, free cash flow was £926 million. After treating stock awards as an economic cost to shareholders, “real” free cash flow was £914 million. But operating cash flow included £68 million of investment purchases and £853 million of investment proceeds, dividends and transfers between investment subsidiaries. It is real cash, but not pure cash from running businesses.

Follow the money: real free cash flow£ millions
Mar 2026Mar 2025Mar 2024Mar 2023Mar 2022
Cash from operations998763366727490
− Capital spending116310
− Interest paid6660405452
= Free cash flow926681317667434
= Real free cash flow914653276640409

What does an investor pay for 3i today?

NAV estimates what each share represents after adding the value of investments and other assets and deducting liabilities. It resembles valuing a house, subtracting its mortgage and dividing the remaining equity among the owners. 3i reported NAV of 3,131p at June 2026; after its 48p dividend, the comparable figure was 3,083p. At 2,406.00p, the shares trade about 22% below it. That is not cash which shareholders can demand, because 3i continues to manage the portfolio.

What an investor pays today£ millions; share price in pence
Today (Oct 15, 2026)
Share price2,406.00
P/E, last 12 months (calculated)4.5x
Price to book (calculated)0.8x
Free cash flow yield (calculated)3.8%
Real free cash flow yield (calculated)3.7%
Dividend yield (calculated)3.5%

What this means. The next-year price-to-earnings figure uses an analyst's profit estimate, not a promise or forecast from the company.

From the full memo · 1. The business

3i is an investment company: it buys and manages stakes in businesses, then earns from the value and cash those stakes produce. To understand its business, follow the money from a shopper or infrastructure user to the operating company, and from there—sometimes—to 3i.

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Where these numbers come from

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