Aircastle: Bought Out, Written Down, KeptNarrow moat

Marubeni (8002) — moat facet

Marubeni took Aircastle private just before the pandemic, wrote it down, and kept it; it now earns more than it did before.

Marubeni first invested in Aircastle, the American aircraft lessor, in 20131. In November 2019 it and Mizuho Leasing agreed to take the company private for $32.00 a share, a total valuation of about $2.4 billion, or $7.4 billion including debt2; Marubeni already owned 28.8% directly3.

Aircastle under Marubeni2013first investmentNov 2019take-private at$2.4bn equityYear toMar 2020impaired ¥39.2bnMar 202212 Russianleases endedYear toMar 2026¥22.0bn profitMarubeni releases; Aircastle Form 8-K
Five dates, two of them bad, ending in the stake's best year.

The timing was poor. Within months the investment was impaired by ¥39.2 billion after tax4, and in March 2022 twelve aircraft leased to Russian airlines had their leases terminated5. Marubeni kept going. Aircastle, now 75.0% owned and equity-accounted, earned ¥22.0 billion in the year to March 2026, up from ¥19.9 billion6, and its owned assets have reached $8.5 billion7.

That persistence is the advantage. Aircraft leasing rewards owners who can buy aircraft when others must sell, and a lessor inside a trading house with an AA- domestic rating8 funds itself more cheaply than an independent.

The investment sits inside a larger aviation and leasing business. Mizuho Leasing, 20.2% owned, contributed ¥9.6 billion, up from ¥6.5 billion9, and the aviation aftermarket platform, which buys retired aircraft for their parts, earned ¥22.0 billion10. Marubeni is present at almost every stage of an aircraft's life after it leaves the factory: leasing it, financing the lessor, and eventually selling its parts.

The Finance, Leasing & Real Estate segment that holds Aircastle had investments in associates of ¥920,946 million at March 202611, the second-largest pool in the company.

The measure is Aircastle's profit against its asset base. At $8.5 billion of owned aircraft and ¥22.0 billion of profit, the return is modest; rising lease rates in a tight aircraft market should lift it.

Moat trajectory: Widening

Profit rose from ¥19.9 billion to ¥22.0 billion and the owned fleet reached $8.5 billion; aircraft scarcity favours lessors with cheap funding.

The number that tests this moat
Reported
Aircastle share of profit
¥22.0bn against ¥19.9bn, year to March 2026

The take-private is paying back after the 2020 impairment; a fall in a tight aircraft market would be a sign of poor fleet choices.

Source: Marubeni full-year IR presentation, May 2026 ↗
⚠ Threats to the moat
⚠ THREAT 01
Russia Kept Twelve Aircraft
Aircraft leasing's real counterparty risk is a government, and Russia showed what that costs.
References
  1. ReportedMarubeni first invested in Aircastle, the American aircraft lessor, in 2013.
    Marubeni Integrated Report 2026, introduction and At a Glance - the company history from 1858 and the market positions the company states for its businesses. — 2026 · publ. 2026 · source ↗
  2. ReportedIn November 2019 it and Mizuho Leasing agreed to take the company private for $32.00 a share, a total valuation of about $2.4 billion, or $7.4 billion including debt; Marubeni already owned 28.8% directly.
    Aircastle Limited, Form 8-K exhibit 99.1 (November 2019) - the agreement to be acquired by Marubeni and Mizuho Leasing for $32.00 a share, a total valuation of approximately $2.4 billion or $7.4 billion including debt. — November 2019 · publ. November 2019 · source ↗
  3. ReportedIn November 2019 it and Mizuho Leasing agreed to take the company private for $32.00 a share, a total valuation of about $2.4 billion, or $7.4 billion including debt; Marubeni already owned 28.8% directly.
    Marubeni Corporation press release on the take-private of Aircastle, noting Marubeni's existing direct ownership. — November 2019 · publ. 7 November 2019 · source ↗
  4. ReportedWithin months the investment was impaired by ¥39.2 billion after tax, and in March 2022 twelve aircraft leased to Russian airlines had their leases terminated.
    Marubeni Corporation, Summary of Consolidated Financial Results for the fiscal year ended March 31, 2020 - the net loss and the after-tax impairments on Gulf of Mexico oil and gas, Chilean copper, the UK North Sea, Aircastle and Gavilon. — FY to March 2020 · publ. 7 May 2020 · source ↗
  5. ReportedWithin months the investment was impaired by ¥39.2 billion after tax, and in March 2022 twelve aircraft leased to Russian airlines had their leases terminated.
    Marubeni Corporation, IR supplementary materials for the fiscal year ended March 31, 2023 - the gain on the sale of Gavilon's grain business and the Russian aircraft lease terminations. — FY to March 2023 · publ. 8 May 2023 · source ↗
  6. ReportedAircastle, now 75.0% owned and equity-accounted, earned ¥22.0 billion in the year to March 2026, up from ¥19.9 billion, and its owned assets have reached $8.5 billion.
    Marubeni Corporation, full-year IR presentation for the fiscal year ended March 31, 2026 - net profit of major group companies by segment, with ownership and business descriptions. — FY to March 2026 · publ. 1 May 2026 · source ↗
  7. ReportedAircastle, now 75.0% owned and equity-accounted, earned ¥22.0 billion in the year to March 2026, up from ¥19.9 billion, and its owned assets have reached $8.5 billion.
    Marubeni Integrated Report 2026, Section 5 Business Portfolio - the businesses inside each segment, recent acquisitions and disposals, and the issues each segment names for itself. — 2026 · publ. 2026 · source ↗
  8. ReportedAircraft leasing rewards owners who can buy aircraft when others must sell, and a lessor inside a trading house with an AA- domestic rating funds itself more cheaply than an independent.
    Marubeni Integrated Report 2026, Section 6 Corporate Data - the twelve-year financial summary (revenue, gross trading profit, operating profit, share of associates, net profit, adjusted net profit, EPS, dividends, ROE, ROA, net D/E, cash flows, total assets and equity), shareholder composition, employees and gross risk exposure by country. — FY to March 2015 - FY to March 2026 · publ. 2026 · source ↗
  9. ReportedMizuho Leasing, 20.2% owned, contributed ¥9.6 billion, up from ¥6.5 billion, and the aviation aftermarket platform, which buys retired aircraft for their parts, earned ¥22.0 billion.
    Marubeni Corporation, full-year IR presentation for the fiscal year ended March 31, 2026 - Core Strategic Platform Businesses: adjusted net profit, ROIC, forecasts and growth rates of each platform, and the portfolio ROIC by resources and non-resources. — FY to March 2026 · publ. 1 May 2026 · source ↗
  10. ReportedMizuho Leasing, 20.2% owned, contributed ¥9.6 billion, up from ¥6.5 billion, and the aviation aftermarket platform, which buys retired aircraft for their parts, earned ¥22.0 billion.
    Marubeni Corporation, full-year IR presentation for the fiscal year ended March 31, 2026 - Core Strategic Platform Businesses: adjusted net profit, ROIC, forecasts and growth rates of each platform, and the portfolio ROIC by resources and non-resources. — FY to March 2026 · publ. 1 May 2026 · source ↗
  11. ReportedThe Finance, Leasing & Real Estate segment that holds Aircastle had investments in associates of ¥920,946 million at March 2026, the second-largest pool in the company.
    Marubeni Corporation, Summary of Consolidated Financial Results for the fiscal year ended March 31, 2026 (IFRS) - consolidated statements of profit or loss, financial position and cash flows, the segment note on the ten operating segments with revenue, gross trading profit, operating profit, share of profit of associates, net profit and segment assets, the investments in associates by segment, the one-time items including the Daiichi Life real-estate valuation gain, the dividend and buyback record, and the forecast for the year to March 2027 with its assumptions. — FY to March 2026 · publ. 1 May 2026 · source ↗
Sources
Generated September 24, 2026