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№ 243 43 filings · 2021-08-16 → 2026-09-10

INTERNATIONAL PUBLIC PARTNERSHIPS LD

INPP
Financial Services Share price 138p Market cap £2.5bn Overall fit 260 /1000

Well-run, fairly-priced defensive infrastructure trust — strong downside protection and not overvalued, but structurally offers negligible AI-receiver exposure, zero operating leverage, and only ~10% upside plus yield. Wrong shape of asset for an AI-beneficiary-plus-operating-leverage strategy.

Fair value range 148p–158p Mid case · £2.7bn
Absolute upside +11.3% vs current market cap
Conviction 4/5 confidence in fair call
Supports the call
  • NAV repeatedly validated by third-party disposals at or above book (>£440m realised since mid-2023)
  • Standard DCF methodology with high cash flow visibility from 99% regulated/availability revenues
  • Multiple valuation cross-checks converge on similar fair value
Limits the call
  • NAV highly sensitive to government bond yields (1% discount rate = c.10% NAV move)
  • CMA/Ofgem regulatory outcomes on Cadent not yet fully resolved
Methodology

NAV with transaction-based cross-check

In one line · bull case

Well-run, transaction-validated defensive infrastructure trust trading at ~10% discount to a credible NAV with a 6.4% covered dividend, but with essentially no AI or operating leverage angle.

In one line · biggest risk

A further sustained rise in long-dated government bond yields would compress NAV via the discount rate mechanism, notwithstanding operational stability.

Drivers
AI beneficiary 15 /100
Availability-based and regulated revenue model captures no upside from AI-driven power/data demand; digital altnet exposure minor and toob written off.
Operating leverage 10 /100
Cash flows contractual/regulated by design; no fixed-cost base to leverage.
Earnings vs expectations 60 /100
Consistent delivery of dividend targets; NAV in line with macro; small positives from active management and buybacks.
Growth momentum 35 /100
Mature yield vehicle; 2.5% p.a. dividend growth target, low-single-digit NAV growth.
Moat 65 /100
Long-dated concessions/licences, regulatory barriers, proprietary Amber origination.
Earnings quality 85 /100
1.3x cash-covered dividend, transactions validate NAV, transparent methodology.
Management quality 75 /100
Long Amber track record, disciplined recycling programme, recent fee reduction improves alignment.
Cyclicality 15 /100
Highly defensive with ~0.4 correlation to FTSE All-Share and inflation-linked revenues.
Leverage 15 /100
Fund-level debt trivial; underlying project debt hedged and non-recourse.

International Public Partnerships Ltd (INPP) — Research Note

Executive summary

INPP is a FTSE 250-listed closed-end infrastructure investment trust holding 130+ PPP, regulated utility, transport, energy transmission and social infrastructure assets across the UK, Europe, Australasia and North America, 99% backed by availability-based or regulated revenues. Across the filings, the Company has delivered a consistent low-single-digit NAV total return (~8-10% p.a. combining dividend + NAV growth), grown its dividend 2.5-5% every year since 2006 IPO, and — under the June 2023 capital allocation reset — has recycled >£440m of realisations (all at or above NAV) into new investments at a >11% weighted return 2026-09 half-year; 2026-03 full-year. The single most important point for valuation today is that the shares trade at ~10% discount to a NAV that has been repeatedly validated by third-party disposals at or above book, giving a bond-proxy total return in the low-teens; the caveat is that this is the wrong shape of asset for a strategy centred on AI beneficiaries and operating leverage.

Fair value estimate

  • Fair value range: 148p – 158p per share (implied market cap £2,649m – £2,828m)
  • Methodology: NAV-based. INPP is an investment trust; its NAV of 153.4p (30 June 2026) is the discounted-cash-flow value of individual assets using a 9.1% weighted average discount rate. Third-party validation: >£440m realised since mid-2023 at prices in line with or above NAV 2026-09 half-year, including a 49% Moray East OFTO stake at a premium (Dec 2025), Angel Trains partial disposal at a premium (Aug 2025), and nine UK PPP projects at a premium (Aug 2026). This gives high confidence in the reported NAV.
  • Range rationale: Central case at published NAV of 153.4p. Low end (148p) applies a modest ~3% haircut reflecting rate-sensitivity and the ongoing headwind from higher government bond yields. High end (158p) includes ~3% uplift capturing the c.200bps accretion from redeploying capital into >11% opportunities vs the 9.1% WADR, plus buyback accretion.
  • Comparison to current mcap of £2,484.4m: at midpoint 153p, market cap of £2,739m implies ~10% upside to the current price of 138.8p.
  • Absolute upside: +10% central case (range: +7% to +14%), excluding dividend yield of ~6.4%.

Sector context

  • Sector confirmed: Financials / Financial Services / listed closed-end infrastructure investment company. ICB classification is accurate.
  • Quality/risk profile: Above sector average for defensive characteristics (99% regulated/availability-based, weighted average concession/asset life ~41 years, historical low FTSE All-Share correlation of 0.4-0.5). Growth profile below average — this is a mature yield vehicle, not a growth asset. Leverage low at fund level (£250m CDF vs £2.7bn NAV = c.5-10% when drawn).
  • Listed peers: HICL Infrastructure (HICL), 3i Infrastructure (3IN), BBGI Global Infrastructure (BBGI). Renewable-adjacent peers: The Renewables Infrastructure Group (TRIG), Greencoat UK Wind (UKW).

Investment thesis (3 bullets)

  1. NAV credibility validated by repeated at-or-above-NAV realisations. Over £440m disposed since mid-2023 across regulated (Moray East OFTO), PPP (Ealing/Islington/Southwark/Lewisham BSF, Priority Schools), and operating businesses (Angel Trains), every one at or above the previously published carrying value. This is unusual in the listed infrastructure sector and materially de-risks the NAV 2026-09 half-year, 2026-08 nine UK PPP disposal.
  2. Accretive capital recycling at >200bps spread. The Company is selling low-return assets (implied return ≤9.1%) and reinvesting at a weighted return of >11% (Sizewell C, BeNEX, Moray West OFTO), a genuine value creation lever independent of market movements 2026-09 half-year; 2025-11 Sizewell C financial close.
  3. Long-duration inflation-linked cash flows underpin 25+ years of dividend growth. Portfolio inflation-linkage of 0.8% (1% inflation increase = 0.8% return increase, +12p NAV), unbroken 20-year track record of ≥2.5% annual dividend growth, and forward guidance of 8.79p (2026) and 9.01p (2027) 2026-09 half-year, 2026-03 full-year.

Key risks (3 bullets)

  1. Interest rate sensitivity via discount rate. The valuation is a discounted cash flow; a 1% increase in discount rates would reduce NAV by c.10%. Government bond yields drive c.60-70% of the discount rate, so a further sustained rise in long-dated gilt yields materially damages NAV 2026-03 full-year, 2025-09 half-year.
  2. Regulatory/political risk on regulated assets. Cadent (15.6% of portfolio) is subject to Ofgem RIIO-3 (final determination Dec 2025, CMA appeal pending Q3 2026); Tideway (16.1%) subject to Ofwat licence terms; OFTOs subject to Ofgem revenue extension consultation. Any adverse regulatory outcome could compress NAV 2026-03 full-year.
  3. Digital altnet write-off risk realised at toob. In Q3 2026 INPP transferred its equity in toob to debt holders for de minimis amount 2026-09 half-year. Sizewell C construction risk over the coming decade, and demand-risk investments (Diabolo passenger recovery) remain execution-dependent items.

Operating leverage

INPP has effectively zero operating leverage in the sense the investor is looking for. The Company's revenues are 99% availability-based or regulated: the OFTOs are paid pre-agreed availability streams regardless of throughput; PPP projects earn contracted unitary payments; Cadent and Tideway earn regulator-set revenues; even Angel Trains earns contracted lease payments largely independent of passenger numbers 2026-03 full-year; 2024-09 half-year. There is no fixed-cost base that generates disproportionate profit on incremental revenue — the opposite by design. If AI drives data-centre power demand or rail freight upside, INPP's OFTO revenues do not rise with electricity throughput and Angel Trains' revenues do not rise with passenger volumes. The fund-level ongoing charges ratio (c.1.09%) is genuinely fixed, but 10-20% revenue upside is not a meaningful scenario for this business model — cash flows are engineered to be flat and predictable. This is a bond-proxy, not a call option.

Value-trap signals

None identified. The evidence points to a genuinely priced-fair defensive asset rather than a structural bargain or trap: NAV validated by transactions, dividend fully covered (1.3x), balance sheet clean (£290m committed pipeline funded by realisations + operating cash, not new equity), and disciplined buyback (£150m of a £225m authorisation executed to date, generating 1.9p NAV accretion).

Earnings vs. expectations

INPP is an investment trust, not a corporate; the relevant "earnings" comparisons are (a) NAV vs guided direction and (b) dividend vs target. Across the filing period the Company has hit every declared dividend target (7.55p in 2021, 7.74p in 2022, 8.13p in 2023 raised from 7.93p, 8.37p in 2024, 8.58p in 2025, 8.79p reconfirmed for 2026 2023-09-07 half-year; 2024-03 full-year; 2026-03 full-year). NAV per share performance vs implicit target has been more mixed: strong in 2022 (+7.3% before dividends), negative in 2023 (RPI/regulatory noise), negative in 2024 (rising bond yields), then recovering with +4.7% in 2025 and +1.3% in H1 2026. Pattern: consistent dividend delivery, NAV subject to macro rate cycle but validated by transactions. Beat/miss framing does not really apply — this is a "meets" business.

Conviction

Conviction: 4 (high)

Anchoring factors: (i) NAV methodology is standard DCF and repeatedly validated by third-party disposals at or above book; (ii) the underlying cash flows are contracted or regulated with high visibility and long track record of collection; (iii) multiple valuation cross-checks — NAV vs share price, implied discount rate vs government bond spread, dividend yield vs comparable trusts — converge on a similar fair value. Limiting factors: (i) portfolio-level sensitivity to bond yields makes the "point" NAV number itself a moving target; (ii) the CMA/Ofgem regulatory outcomes on Cadent are not yet fully resolved.

Driver scoring rationale

  • AI beneficiary (15): Essentially no direct AI exposure. Fibre altnet exposure was tiny (<1%) and toob has been written off. OFTOs transmit renewable electricity but revenues are availability-based, so AI-driven power demand does not accrue to shareholders. Sizewell C could power data centres but its return is regulated and capped.
  • Operating leverage (10): Contractual/regulated cash flows by design. Fund-level OCR is fixed but portfolio economics do not respond to volume beats — the opposite of what this investor wants.
  • Earnings surprise trend (60): Consistent delivery of dividend targets; NAV performance broadly in line with macro. Slight beats from active management (100% of forecast distributions received, buyback accretion).
  • Cyclicality (15): Highly defensive; ~99% availability/regulated revenues, low correlation to FTSE All-Share (0.4-0.5).
  • Moat (65): Long-dated concessions and licences (~41 year weighted average), regulatory barriers to entry, proprietary origination via Amber Infrastructure, deep public-sector relationships. Not a network-effects moat but very durable.
  • Leverage (15): Fund-level net debt trivial vs NAV; underlying project debt is asset-ring-fenced and typically hedged.
  • Earnings quality (85): Clean cash-covered dividend (1.3x), realisations at book validate mark-to-model, transparent methodology.
  • Management quality (75): Amber has 20-year track record; disciplined recycling strategy has demonstrably added value; recent fee reduction (~10% p.a.) and market-cap-weighted fee link improve alignment.
  • Growth momentum (35): NAV per share growing ~2-5% p.a. in line with 2.5% dividend growth target; capital base modestly growing via pipeline deployment. Not a growth story.

Overall score rationale

Overall score: 260. INPP is a well-run, fair-priced defensive infrastructure trust that fails all three of the investor's primary tests: negligible AI-receiver exposure, zero operating leverage, and while priced fairly it offers only ~10% upside to NAV plus 6.4% yield. It scores partial marks on downside protection (strong) and valuation discipline (not overpaying), but it is fundamentally the wrong shape of asset for a portfolio built around AI beneficiaries with asymmetric upside. Worth knowing about as ballast, not a portfolio focus.

Filings consulted · 49

Every document the LLM read for this note. Click any row to open the source.

  1. 2026-09-10Half Year Results For Six Months 30 June 20262026-09-10_9764269_half-year-results-for-six-months-30-june-2026.md0.90
  2. 2026-08-26Notice OF Half Year Results2026-08-26_9740941_notice-of-half-year-results.md0.90
  3. 2026-08-19Disposal OF Nine UK Ppp Projects AT A Premium2026-08-19_9728502_disposal-of-nine-uk-ppp-projects-at-a-premium.md0.75
  4. 2026-06-03Result OF Agm2026-06-03_9600254_result-of-agm.md0.30
  5. 2026-04-16Notice OF Agm2026-04-16_9522663_notice-of-agm.md0.30
  6. 2026-03-26Full Year Results TO Year Ended 31 December 20252026-03-26_9492544_full-year-results-to-year-ended-31-december-2025.md1.00
  7. 2025-12-31Partial Disposal OF Moray East Ofto2025-12-31_9327243_partial-disposal-of-moray-east-ofto.md0.64
  8. 2025-09-04Half Year Results For Six Months 30 June 20252025-09-04_9087799_half-year-results-for-six-months-30-june-2025.md0.58
  9. 2025-08-21Notice OF Interim Results2025-08-21_9066845_notice-of-interim-results.md0.58
  10. 2025-08-11Partial Disposal OF Angel Trains2025-08-11_9043258_partial-disposal-of-angel-trains.md0.49
  11. 2025-06-03Result OF Agm2025-06-03_8910165_result-of-agm.md0.20
  12. 2025-04-15Notice OF Agm2025-04-15_8830834_notice-of-agm.md0.20
  13. 2025-03-27Full Year Results TO Year Ended 31 December 20242025-03-27_8799415_full-year-results-to-year-ended-31-december-2024.md0.65
  14. 2025-03-272024 Second Half Year Dividend2025-03-27_8799584_2024-second-half-year-dividend.md0.58
  15. 2024-10-16Benex Makes A Further Acquisition2024-10-16_8489808_benex-makes-a-further-acquisition.md0.49
  16. 2024-09-27Partial Disposal OF Fhsp2024-09-27_8443263_partial-disposal-of-fhsp.md0.49
  17. 2024-09-05Half Year Results For Six Months TO 30 June 20242024-09-05_8400488_half-year-results-for-six-months-to-30-june-2024.md0.41
  18. 2024-09-052024 First Half Year Dividend2024-09-05_8400688_2024-first-half-year-dividend.md0.41
  19. 2024-08-05Notice OF Interim Results2024-08-05_8347932_notice-of-interim-results.md0.41
  20. 2024-06-04Result OF Agm2024-06-04_8241980_result-of-agm.md0.14
  21. 2024-05-01Notice OF Agm2024-05-01_8165909_notice-of-agm.md0.14
  22. 2024-03-28Full Year Results TO Year Ended 31 December 20232024-03-28_8111123_full-year-results-to-year-ended-31-december-2023.md0.45
  23. 2024-03-282023 Second Half Year Dividend2024-03-28_8111287_2023-second-half-year-dividend.md0.41
  24. 2024-02-02Capital Markets Day 27 February 20242024-02-02_8018716_capital-markets-day-27-february-2024.md0.43
  25. 2023-12-05Portfolio Update Amp Rescheduled Capital Markets Day2023-12-05_7922626_portfolio-update-amp-rescheduled-capital-markets-day.md0.43
  26. 2023-09-20Update TO Capital Markets Day2023-09-20_7767798_update-to-capital-markets-day.md0.43
  27. 2023-09-07Half Year Results For Six Months TO 30 June 20232023-09-07_7740471_half-year-results-for-six-months-to-30-june-2023.md0.23
  28. 2023-09-072023 First Half Year Dividend2023-09-07_7740387_2023-first-half-year-dividend.md0.23
  29. 2023-08-30Notice OF Interim Results2023-08-30_7723899_notice-of-interim-results.md0.23
  30. 2023-07-26Market Update Realisation And Capital Markets Day2023-07-26_7654926_market-update-realisation-and-capital-markets-day.md0.24
  31. 2023-05-31Result OF Agm2023-05-31_7553307_result-of-agm.md0.07
  32. 2023-04-28Notice OF Agm2023-04-28_8060_notice-of-agm.md0.07
  33. 2023-03-30Full Year Results For The 12 Months TO 31 Dec 20222023-03-30_7377986_full-year-results-for-the-12-months-to-31-dec-2022.md0.25
  34. 2023-03-302022 Second Half Year Dividend2023-03-30_7378133_2022-second-half-year-dividend.md0.23
  35. 2022-12-09Acquisition OF First New Zealand Investments2022-12-09_7361135_acquisition-of-first-new-zealand-investments.md0.19
  36. 2022-10-272022 Half Year Dividend Scrip Election Option2022-10-27_7160896_2022-half-year-dividend-scrip-election-option.md0.23
  37. 2022-09-08Half Year Report For Six Months TO 30 June 20222022-09-08_7269376_half-year-report-for-six-months-to-30-june-2022.md0.23
  38. 2022-09-08Half Year Report For Six Months TO 30 June 20222022-09-08_7269555_half-year-report-for-six-months-to-30-june-2022.md0.23
  39. 2022-09-082022 First Half Year Dividend2022-09-08_7269458_2022-first-half-year-dividend.md0.23
  40. 2022-08-17Notice OF Interim Results2022-08-17_7127773_notice-of-interim-results.md0.23
  41. 2022-05-25Result OF Agm2022-05-25_7026482_result-of-agm.md0.07
  42. 2022-03-24Full Year Results For The 12 Months TO 31 Dec 212022-03-24_7050491_full-year-results-for-the-12-months-to-31-dec-21.md0.25
  43. 2022-03-24Full Year Results For The 12 Months TO 31 Dec 212022-03-24_7049909_full-year-results-for-the-12-months-to-31-dec-21.md0.25
  44. 2022-03-242021 Second Half Year Dividend2022-03-24_7050012_2021-second-half-year-dividend.md0.23
  45. 2021-12-23Acquisition OF UK Ppp Portfolio2021-12-23_6915044_acquisition-of-uk-ppp-portfolio.md0.19
  46. 2021-12-16Acquisition OF First Danish Investments2021-12-16_6833855_acquisition-of-first-danish-investments.md0.19
  47. 2021-09-09Half Year Report For Six Months TO 30 June 20212021-09-09_6772591_half-year-report-for-six-months-to-30-june-2021.md0.09
  48. 2021-09-092021 First Half Year Dividend2021-09-09_6772801_2021-first-half-year-dividend.md0.09
  49. 2021-08-16Notice OF Interim Results2021-08-16_6551805_notice-of-interim-results.md0.09

This research note was authored by a large language model after reading 43 regulatory filings published between 2021-08-16 and 2026-09-10. Each citation refers to a specific RNS announcement in the underlying data set. The note is an opinion, not advice. Do your own work before risking capital.