3i Group plc (III) — Investment research note

Executive summary

3i Group is a listed investment company whose value is dominated by a single asset — its ~55% stake in Action, the pan-European non-food discount retailer — supplemented by a smaller private-equity portfolio, an infrastructure fund-management business (including a 29% stake in 3i Infrastructure plc) and Scandlines. Across FY23–FY26 disclosed periods the group has compounded NAV per share aggressively (from £14.77 at Sept-22 to £18.86 at Sept-23), driven by Action's 30-45% run-rate EBITDA growth and an unchanged 18.5x post-discount valuation multiple. The single most important valuation input today is Action's earnings multiple and the durability of its ~15%+ LFL sales growth — nothing else in the group is remotely as material.

Fair value estimate

• Methodology: sum-of-parts / NAV, cross-checked against premium to NAV
• Anchoring on the last hard datapoint (Sept-23 NAV per share of 1,886p) and rolling forward using disclosed dividend growth (34.5p → 42.5p → 48p) plus continued Action compounding at the disclosed 18.5x multiple, my estimate of end-FY26 NAV per share is roughly 2,700–3,000p (implied NAV around £27–30bn).
• 3i has historically traded at a meaningful premium to NAV (share price hit 4,459p vs. Sept-23 NAV of 1,886p — a ~2.4x premium at the peak). A more disciplined range of 1.0–1.2x forward NAV gives fair value of 2,700–3,400p per share, implied market cap £27,000m – £34,000m.
• Mid-point ≈ 3,050p per share, ≈ £30,500m mcap vs. current £28,245m
• Absolute upside to mid: +7%; range spans –5% to +20%.
• View: fair — the sharp drawdown from 4,459p to 2,275p has taken out the excess premium, and the shares now roughly track NAV plus a modest growth premium.

Sector context

• ICB: Financial Services (Financials) — 3i is a listed permanent-capital PE vehicle, so it sits with alternative asset managers / listed private-equity trusts rather than banks.
• Quality/leverage profile is above sector average: gearing 6% at Sept-23, £900m undrawn RCF, investment-grade debt with long maturities.
• Peers: HgCapital Trust (HGT), Partners Group, Intermediate Capital Group (ICP), Bridgepoint (BPT), plus listed PE trusts like ICG Enterprise Trust. None replicates the Action-concentration profile.

Investment thesis (3 bullets)

1. Action remains a rare compounder: net sales +31% YoY and operating EBITDA +44% YoY over 9M P9 2023, with 19.2% LFL sales growth driven by footfall, in a value-retail model that is structurally counter-cyclical 2023-11 half-year. 300 net new store additions per year with a runway across Italy, Spain and Slovakia.
2. Balance-sheet strength allows patient capital deployment: gearing at 6%, liquidity £955m at Sept-23, successful six-year €500m bond issued at 4.875% coupon 2023-11 half-year. Management explicitly says they are "under no pressure to sell" — permanent-capital advantage vs. fund-life PE peers.
3. Track record of aggressive but rising dividend growth: cash distribution declared at 34.5p (FY24), 42.5p (FY25), 48p (FY26 final) 2024-06, 2025-06, 2026-06 AGM results — a doubling in three years, funded by portfolio cash income and realisations without stretching gearing.

Key risks (3 bullets)

1. Extreme concentration in Action: at Sept-23, Action = £12,862m of £20,255m portfolio (~63%). Management disclose that a ±1.0x movement in Action's multiple = ±£749m NAV impact 2023-11 half-year. Any moderation in LFL growth (already decelerated from 19.2% to 13.4% by P10) or peer multiple compression would hit NAV disproportionately.
2. NAV is largely a fair-value construct anchored on private-market multiples (18.5x post-discount on Action, 12.9x weighted average on the rest). In a rising-rate/multiple-compression environment these can move against you fast; some private-market comparables in listed retail trade at materially lower multiples 2023-11 half-year valuation note.
3. Share price behaviour signals dislocation risk: the stock fell from 4,459p (Oct-25) to 2,275p (May-26), a 49% drawdown, without any accompanying material change in fundamentals visible in the disclosed AGM materials [not disclosed but inferred]. This suggests either a re-rating of Action's multiple, an unlisted-mark concern, or macro exposure that the filings do not fully bridge.

Operating leverage

3i itself is a small central operating cost base — cash operating expenses of £82m per half — sitting on a ~£20bn investment portfolio, so at the group level operating leverage is very high (each additional £100m of GIR drops almost entirely to shareholder return). The more relevant operating leverage sits inside Action: revenue +31%, operating EBITDA +44% and EBITDA margin expansion from 12.2% to 13.5% 2023-11 half-year Table 5. Every 100bps of Action LFL growth converts to a meaningfully larger EBITDA increase because store-level fixed costs (rent, staff, DC infrastructure) are largely absorbed. If group NAV growth surprises 10-20% to the upside, most of that flows to shareholders — the constraint isn't leverage but the multiple applied to Action's earnings. That said, for the user's stated "AI-driven long-tail upside" thesis, Action's operating leverage is unrelated to AI: it is discount-retail volume leverage.

Value-trap signals

• Sharp share price drawdown (−49%) unexplained by disclosed news — either the market is pricing in materially weaker Action outlook, or specific unlisted marks that we cannot see in these filings.
• Structural single-asset concentration creates permanent overhang until Action is IPO'd or diversified — 3i has held it since 2011 with no realisation.
• Rising carry-interest payments (£510m paid H1-24) drain cash and are a hidden dilution to shareholders on any Action upside.

Earnings vs. expectations

3i does not report to quarterly consensus. Half-yearly total returns disclosed: H1-FY23 +14% opening NAV, H1-FY24 +10% opening NAV, FY23 full year +36% 2023-11 half-year. Dividend progression (27.25p → 29.75p → 34.5p → 42.5p → 48p) has consistently been at or above the "50% of prior year total" formula management commits to. Insufficient explicit consensus/guidance comparisons in these filings to formally score beat/miss cadence, but the disclosed vs. targeted dividend and NAV trajectory has been consistently ahead of the 3i's own stated targets through FY23–FY26.

Conviction

3 (moderate). Anchors: (1) 3i's disclosure is high-quality and consistent; (2) the largest asset (Action) is transparently valued at a stated multiple with a stated sensitivity; (3) balance sheet leverage is low and unambiguous. Limits: (1) I do not have the FY2026 annual report detail — my forward-NAV estimate is triangulated from dividends and prior-year growth rates, not from primary disclosure; (2) the entire fair-value call is a bet on Action's earnings multiple, which is itself unobservable and subject to peer-group revaluation.