Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing

U.S. industry primer — NAICS 2022 code 532411

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1. Overview

This industry owns big-ticket transportation assets — aircraft, jet engines, freight railcars, shipping containers, barges, and ships — and rents them, without crews or operators, to the airlines, railroads, and shipping lines that actually run them.[1] It sits inside the government's "Real Estate and Rental and Leasing" super-sector, but do not let the label mislead you: this is not real estate. It is the business of buying multi-million-dollar mobile assets, financing them with debt, and earning the spread between the rent collected and the interest paid — while betting on what the metal is worth when the lease ends.

Why an investor cares: a small handful of these lessors control assets worth hundreds of billions of dollars, throw off contracted, often inflation-linked cash flows, and have become prime targets for pension funds and infrastructure capital. The economics are a hybrid of a bank (leverage, funding spreads, credit risk) and a hard-asset portfolio (utilization, resale/residual values, interest-rate sensitivity).

Public vs. private ways in. Public-market investors can still buy a shrinking menu of listed lessors — chiefly AerCap (aircraft) and GATX and Trinity (railcars). But the direction of travel is toward private ownership: the two largest container lessors (Triton, Textainer) and the largest aircraft lessor after AerCap (Air Lease) have all been taken private by infrastructure investors since 2023.[7][16][17] Private and institutional investors reach the assets through infrastructure funds, joint ventures, asset-backed bonds, and direct/sale-leaseback ownership.

A framing note for readers arriving from a real-estate primer: the familiar real-estate vocabulary does not apply here. These companies are generally not REITs (real estate investment trusts — the pass-through structure that must distribute ~90% of taxable income), because aircraft and railcars are personal property, not real property. So there is no NOI (net operating income), no cap rate (capitalization rate), and no FFO/AFFO (funds from operations / adjusted funds from operations). The equivalents you will use are fleet utilization, lease rates, residual value, leverage, and book value / net asset value (NAV) — all defined below.

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2. What it is, and what it excludes

In scope: establishments primarily engaged in renting or leasing off-highway transportation equipment without operators — commercial aircraft and engines, railcars/tank cars/locomotives, intermodal freight containers and chassis, and commercial vessels (barges, tugs, tankers) leased "bareboat" (hull only, no crew).[1] The value added is owning and financing the asset and administering the lease — sourcing equipment, structuring the lease, moving assets between customers, and managing resale.

Explicitly excluded (adjacent NAICS codes worth knowing so you compare like with like):[1]

The 533110 contrast is instructive: intangible-asset lessors collect royalties with almost no capital tied up and no residual-value risk. 532411 lessors are the opposite — tens of billions of dollars of depreciating aluminum and steel on the balance sheet. They are the two ends of the "lessors" spectrum.

Ownership mix. Assets and revenue are overwhelmingly institutional and concentrated, even though the count of establishments is fragmented. A few large, capital-markets-funded lessors dominate each asset class; behind them sit bank-owned fleets, industrial holding companies, and — increasingly — infrastructure and private-equity funds. A long tail of roughly 480 micro-establishments (small barge lines, regional railcar and aircraft lessors, sale-leaseback shops) rounds out the numbers but owns a rounding-error share of the assets.[3] Note one difference from residential real estate: Census business statistics normally undercount industries dominated by small individual landlords and pass-throughs, but here that effect is negligible — this business is far too capital-intensive for meaningful individual/nonemployer ownership.

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3. How big it is

Our authoritative federal figures for NAICS 532411 (United States):

How to read this: a tiny industry by head-count (fewer than 5,000 U.S. employees) but a large one by dollars ($13.2 billion of receipts). That works out to roughly $2.8 million of revenue per employee — an order of magnitude above a typical service business — because the "product" is the use of a multi-million-dollar asset, not labor. This is the textbook definition of capital-intensive: few people, enormous balance sheets. (The 2022 Economic Census, on a slightly different basis, counted 627 establishments and 5,156 employees; the small gaps between it and County Business Patterns reflect different reference concepts and NAICS vintages, not error.)

The federal figure badly understates the investable asset base, for a specific structural reason: the Economic Census counts only U.S.-located establishments' domestic receipts, but the biggest lessors are legally domiciled offshore for tax reasons (AerCap in Ireland; Triton and Textainer in Bermuda) even though they trade on U.S. exchanges and are held by U.S. investors — and their assets fly, roll, and sail worldwide. The economically relevant scale is the fleet:

(TEU = twenty-foot equivalent unit, the standard shipping-container measure.) Once the offshore-domiciled, U.S.-listed lessors and the private container/rail platforms are counted, the asset base tied to this industry runs to several hundred billion dollars — the $13.2 billion of domestic receipts is only the visible tip.

Concentration. The industry is moderately-to-highly concentrated at the U.S. level, and far more so globally within each asset class:[2]

Four firms take nearly half of U.S. receipts; fifty firms take 96% — leaving crumbs for the hundreds of micro-operators.

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4. The investable universe

Because the industry spans three asset classes with very different public-market access, here is the map. Public equity has been shrinking as infrastructure funds buy the biggest platforms outright.

Listed companies (what a public-equity investor can buy today):

Market caps are rough, derived from mid-July 2026 share prices, and move continuously — treat as order-of-magnitude. Wabtec and Greenbrier carry heavy manufacturing exposure and are not lease pure-plays; FTAI Aviation (FTAI) is an adjacent engine-products/aftermarket platform rather than a lessor.

Containers — no meaningful public pure-play remains. The two giants were taken private: Triton (world #1, 7.4 million TEU) by Brookfield Infrastructure in 2023 (~$13.3 billion enterprise value); Textainer (#2) by Stonepeak in 2024 (~$7.4 billion), which then combined it with Seaco in December 2025.[15][16][17] The closest listed proxies are the acquirers themselves — Brookfield Infrastructure (BIP/BIPC) and Mitsubishi HC Capital (which bought CAI in 2021).

Ships trade via listed charter owners — SFL, Danaos (DAC), Global Ship Lease (GSL), Costamare — but these are generally foreign-domiciled and usually supply crew and technical management (a time charter), which places them adjacent to, rather than squarely inside, 532411.[21]

Major private and institutional owners:

• Aircraft: SMBC Aviation Capital, Avolon, Aircastle, BBAM, DAE, AviLease, and Sumisho Air Lease — the former Air Lease Corp, taken private in April 2026 at $65/share (owners: Sumitomo ~47.5%, Apollo 23.75%, Brookfield 23.75%, SMBC 5%).[7] Credit funds Carlyle Aviation and Castlelake are also large.
• Railcars: Berkshire Hathaway's Union Tank Car and Procor (~118,000 cars), ITE Management's AITX (~120,000 cars after buying SMBC Rail's fleet in 2023), Brookfield's GABX joint venture (70% Brookfield / 30% GATX), which bought ~101,000 Wells Fargo railcars for ~$4.2 billion in January 2026, and First Citizens' CIT Rail. TTX is a car pool owned by the railroads themselves.[8][9][18]
• Containers: Brookfield (Triton), Stonepeak (Textainer/Seaco), Mitsubishi HC Capital (CAI), plus Florens and SeaCube.[15][16][17]

The pattern is unmistakable: the stable, contracted, hard-asset cash flows of leased transport equipment are exactly what infrastructure funds, insurers, and pension capital want — so the largest asset pools keep migrating from public markets into private hands.

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5. How the money works

An equipment lessor is a spread business wrapped around a residual-value bet. It buys an asset (typically 60–75% debt-financed), leases it out, and earns the rent minus the interest on the debt minus depreciation. Because these companies are ordinary corporations rather than REITs, the earnings measures are GAAP net income, adjusted net income, return on equity (ROE), and book value per share — not FFO/AFFO. (GAAP = Generally Accepted Accounting Principles.)

Two lease types. Under an operating lease — most aircraft, containers, and essentially all railcars — the lessor keeps the asset on its books, depreciates it, bears the residual-value risk, and re-leases or sells it at lease end. This is the classic model and the source of most industry profit. A finance (or capital) lease is economically a loan: the customer effectively buys the asset over the term. Most of the industry's book is operating leases.[6]

Utilization — the "occupancy" analogue. The single best health check is the share of the fleet actually on revenue-earning lease. In healthy markets this runs remarkably high — AerCap ~99%, GATX ~99% (non-boxcar), Trinity ~97%, Triton ~98% in 2025.[6][8][11][15] An idle asset earns nothing but still racks up storage, insurance, and depreciation. (Some short-term equipment renters also track dollar utilization — revenue actually earned versus the maximum possible — but the big transport lessors, running near-full and on multi-year leases, mostly report rent, yield, and renewal pricing instead.)

Lease rates and repricing. Rent is usually quoted as a lease rate factor — monthly rent as a percentage of the asset's value. New narrowbody aircraft have historically leased around 0.7–0.9% of value per month (roughly 8.5–11% annualized), and that factor rises with interest rates because lessors must price in higher funding costs.[24] In the tight 2024 market, new-technology narrowbodies (~$55 million aircraft) leased for up to ~$410,000/month, with mid-life jets at ~$230,000–250,000/month — though precise model-by-model rates come from specialist appraisers, not public filings.[24] On the rail side, the same force shows up as renewal spreads: GATX renewed expiring leases ~22% higher in 2025, mechanically lifting future revenue even without adding cars.[8]

Residual (resale) value — the make-or-break variable. Because most operating leases expire before the asset is worn out, returns hinge on what the asset is worth at lease end. Lessors depreciate to an estimated residual and book gains or losses when they sell — and those flow straight to earnings. AerCap sold 140 assets for ~$3.9 billion in 2025 and booked ~$819 million of gains, evidence that its metal was carried below market.[6] Residuals are driven by asset scarcity (the 2023–24 aircraft shortage actually lifted used-jet values), technology and fuel efficiency, regulation, and how liquid and standardized the asset is — a globally fungible A320 or a plain 20-foot container holds value far better than a niche configuration. A useful caution: reported earnings can be flattered by selectively selling the strongest assets, so separate recurring lease income from one-time sale gains.

Financing and leverage. Lessors run high leverage — AerCap carries ~$44 billion of debt at a ~4.1% average cost against ~$72 billion of assets (adjusted debt-to-equity ~2.1×); GATX and Trinity are similarly geared.[6][8] Funding is mostly fixed-rate investment-grade bonds plus secured asset-backed securities (ABS) and, for aircraft, enhanced equipment trust certificates (EETCs). The spread between fixed lease revenue and fixed debt cost is the profit engine — which is why interest rates dominate everything (Section 9). U.S. tax rules amplify the after-tax return through accelerated (MACRS) and bonus depreciation, and the largest players domicile offshore (Ireland, Bermuda) to optimize leasing taxes and treaty access.

Why book value stands in for NAV. Since there is no 90%-distribution mandate, lessors return capital mainly through buybacks and modest dividends, and they are valued on price-to-book value — book value per share is the workable proxy for net asset value (NAV), the appraised worth of the fleet plus other assets minus net debt. A lessor trades below book when investors think the fleet or its credit is worth less than carried, and above book when funding access, order-book positions, and expected ROE create franchise value. This is the direct analogue of a REIT's price-to-NAV — the tax wrapper differs completely, but the valuation lens rhymes.

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6. What drives demand

1. Air-travel growth and the shift to leasing. Long-run passenger traffic roughly doubles every 15–20 years, and airlines increasingly prefer to lease — the leased share of the world fleet rose from ~2% (1980s) to ~58% today — to conserve capital and stay flexible.[5] Global passenger demand rose 5.3% in 2025 to a record 83.6% load factor, though growth was international, not U.S. domestic (North America +0.4%).[20]
2. Sale-leasebacks. Airlines and shippers sell equipment to a lessor and lease it straight back for instant liquidity, shifting residual and financing risk off their own balance sheets.
3. Rail freight volumes and fleet renewal. Demand for tank cars, hoppers, and covered cars tracks chemicals, plastics, grain, energy, and construction; U.S. railroads moved 11.5 million carloads and 14.1 million intermodal units in 2025 (each +1.5%).[19] Safety mandates (see Section 7) force replacement regardless of volume.
4. Containerized trade. Box-lease demand follows world trade volumes and shipping lines' choice to lease (~half the fleet) rather than tie up capital.[15]
5. OEM production constraints (a paradoxical tailwind). When Boeing and Airbus fall behind and engines get grounded for inspection, used aircraft become scarce — lifting lease rates and residuals for lessors that already hold the metal. Both manufacturers still forecast ~43,000+ deliveries over 2025–2044, so the long-run growth pipeline is intact.[20]
6. Interest rates and credit (double-edged — see Section 9): cheap capital fuels ordering; expensive capital raises lease rates but squeezes lessor spreads.

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7. Regulation

Equipment leasing is lighter-touch than residential landlord-tenant law, but several regimes are decisive to the business model:

• Creditor-protection law is foundational. The Cape Town Convention and its Aircraft Protocol standardize cross-border repossession and priority rights for aircraft/engine financiers, and U.S. Bankruptcy Code §1110 (aircraft/vessels) and §1168 (railcars) give lessors accelerated repossession rights — recovery within about 60 days if a bankrupt airline or railroad does not cure defaults.[22] These protections are a core reason transport-equipment lease debt is cheap and investment-grade.
• Safety and registry regimes. The FAA (Federal Aviation Administration) governs aircraft registration (non-U.S. owners commonly use qualifying owner-trust structures) and airworthiness; the FRA (Federal Railroad Administration) and the AAR (Association of American Railroads), via the Umler/Railinc registry, set railcar standards. Tank-car rules bite hard: legacy DOT-111 and CPC-1232 cars cannot carry specified flammable liquids after May 1, 2029, and a 2024 FRA rule restricts components from "countries of concern."
• Marine. The Jones Act requires goods moving between U.S. points to travel on U.S.-built, -owned, and -crewed vessels — which limits domestic supply and props up replacement values for the barge/vessel niche. IMO (International Maritime Organization) efficiency rules (EEXI and CII — energy-efficiency and carbon-intensity measures) took effect in 2023; a broader net-zero fuel-pricing framework was not adopted in October 2025 and remains under negotiation.[23]
• Tax and accounting. Leases are classified under ASC 842 (operating vs. finance). Note that since the 2017 tax law, like-kind (Section 1031) exchanges no longer apply to aircraft, railcars, or containers — only to real property — which removed a tax-deferral tool lessors once used. A prospective risk is the global minimum tax (Pillar Two), which could raise offshore lessors' effective tax rates.

(Fair-housing, rent-control, and medical-equipment reimbursement rules belong to other parts of the leasing world and do not apply here.)

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8. Competitive dynamics and consolidation

Scale is the whole game, and the industry has been consolidating for a decade:

• Aircraft: AerCap bought ILFC (2014) and GE's GECAS (2021) to become the dominant lessor; Air Lease was taken private in April 2026.[6][7] The top handful of lessors control the bulk of the leased fleet.
• Rail: GATX's GABX joint venture with Brookfield absorbed the ~101,000-car Wells Fargo Rail fleet (closed January 2026), and AITX absorbed SMBC Rail (2023) — bank fleets migrating to specialist lessors and infrastructure capital.[9][18]
• Containers: both leaders went private (Brookfield/Triton 2023, Stonepeak/Textainer 2024), and Textainer then merged with Seaco (December 2025), cementing a private-infrastructure oligopoly.[16][17]

Why scale wins: the competitive weapons are cost of capital (credit rating), fleet youth and asset liquidity, access to scarce OEM delivery slots, a global remarketing network, and technical/maintenance capability. A small edge in borrowing cost compounds across a multibillion-dollar fleet. New entrants face a brutal capital barrier — you need investment-grade access to billions — which is precisely why private-equity and infrastructure capital, not startups, is the source of new ownership.

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9. Risks

1. Interest-rate and refinancing risk (the dominant risk). This is the industry's version of a REIT's cap-rate/refinancing exposure. Lease rents are often fixed for years while debt matures and reprices sooner, so rising rates squeeze the spread. Companies disclose their sensitivity, though on different assumptions (not directly comparable):[6][8][11]

These understate the bigger danger two ways: refinancing tens of billions of dollars of debt through market windows (AerCap alone had ~$6.2 billion of 2026 maturities), which a frozen credit market makes perilous; and valuation — a higher discount rate cuts fleet NAV even when current cash interest is fully hedged.

2. Residual-value risk. The core operating-lease bet. A retirement wave, a technology shift, or oversupply can crater resale values and force write-downs. Book depreciation is an estimate, not an appraisal — Triton, for example, cut its container residual assumptions and shortened useful lives in 2025.[15]

3. Cyclicality and customer credit. Airlines, railroads, and shipping lines are cyclical and bankruptcy-prone; a downturn brings defaults, deferrals, and repossessions. A single large customer's failure is material.

4. Oversupply. Railcars have a chronic overbuild cycle (some manufacturers also lease); the containership order book stood at ~35% of the operating fleet at year-end 2025 — a large medium-term overhang.[21] Oversupply hits utilization, lease rates, and residuals at once.

5. Geopolitical / sanctions / catastrophic loss. The clearest recent case: after Russia's 2022 invasion of Ukraine, lessors were forced to terminate leases while 400-plus aircraft stayed stranded in Russia. AerCap took a multi-billion-dollar charge, later partly offset by ~$1.5 billion of insurance recoveries booked in 2025 — which also means its headline 2025 profit overstates recurring earnings.[6] Movable assets can be redeployed, but they can also be trapped abroad.

6. Accounting noise. Gains on fleet sales, impairments, changes in useful lives, restructuring gains, and insurance settlements can make GAAP net income misleading. Focus on recurring lease earnings.

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10. How to invest, and outlook

Public-market route. The listed menu is short and getting shorter: AerCap (AER) in aircraft; GATX (GATX) and Trinity (TRN) in railcars, with Greenbrier (GBX) and Willis Lease (WLFC) as smaller plays and Wabtec (WAB) as a rail-adjacent locomotive name. Containers are effectively off the public menu; the nearest proxy is Brookfield Infrastructure, which owns Triton. Value these on price-to-book / price-to-NAV (the workhorse multiple), adjusted ROE, utilization and renewal pricing, the debt maturity ladder and fixed/floating mix, and sale proceeds versus book value (evidence the depreciation assumptions are honest). Dividend yields are modest — roughly 1.1% (AerCap), 1.5% (GATX), 3.4% (Trinity) as of mid-July 2026 — precisely because there is no 90%-payout mandate; capital-intensive lessors often create more value retaining capital, deleveraging, or buying back stock below NAV than paying it out.[25] A low yield here does not signal weak economics.

Private-market route. Options run from infrastructure and equipment-leasing funds (Brookfield, Stonepeak, Carlyle Aviation, Castlelake), to joint ventures (as Brookfield did with GATX), to asset-backed securities and private credit (aircraft/container/railcar ABS and EETCs — priority cash flows without full residual upside), to direct ownership and sale-leasebacks. But direct ownership is not like buying a passive rental property: even a single aircraft or vessel demands technical records, maintenance supervision, insurance, regulatory compliance, and a remarketing plan — which is exactly why servicing capability and downside liquidation value matter as much as the headline lease rate.

Outlook by asset class:

• Aircraft — the strongest setup. OEM shortfalls and engine-inspection groundings keep jets scarce, supporting record lease rates and rising residuals; the tailwind lasts until manufacturing output normalizes, a multi-year story. Watch funding costs and any shock to air travel.[6][20]
• Rail — high utilization, disciplined supply. Fleets sit at ~97–99% utilization with positive renewal spreads, so repricing lifts revenue even without volume growth; the risk is a freight recession or a manufacturer-led overbuild, and demand varies sharply by car type.[8][11]
• Containers — softer, and now private. Long leases cushion earnings, but Triton flagged historically low new-lease rates and falling pickups in 2025 as trade normalized.[15]
• Ships — highest upside, highest risk. Contracted charter backlogs protect near-term cash flow, but the large newbuild order book is a real medium-term oversupply threat.[21]

Bottom line. NAICS 532411 is a small-employment, enormous-dollar, globally consolidated hard-asset leasing industry — economically a cross between a bank (spreads, leverage, credit) and a real-estate portfolio (residual values, interest-rate sensitivity), but wrapped in an ordinary corporate rather than REIT structure. Public investors express it through a handful of price-to-book-valued lessors; private and institutional investors increasingly own the assets outright through infrastructure funds and asset-backed bonds. The master variables across all of it are the path of interest rates and the asset-supply cycle: a rate normalization would widen spreads and lift asset values, while a renewed spike would compress margins and refinancing capacity.

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Sources

1. U.S. Census Bureau. North American Industry Classification System (NAICS) 2022 — code 532411 definition and cross-references. 2022. https://www.census.gov/naics/?input=532411&year=2022
2. U.S. Census Bureau. 2022 Economic Census — Sector 53, NAICS 532411 (receipts $13,226,812 thousand; 526 firms; CR4 47.4%, CR8 69.9%, CR20 89.0%, CR50 95.8%; HHI ~798). 2024–2025. https://www.census.gov/programs-surveys/economic-census.html
3. U.S. Census Bureau. County Business Patterns 2023 — NAICS 532411 (647 establishments; 4,696 employees; annual payroll $697,129 thousand; Q1 payroll $234,656 thousand). 2025. https://www.census.gov/programs-surveys/cbp.html
4. U.S. Small Business Administration. Table of Small Business Size Standards Matched to NAICS Codes (NAICS 532411 ≈ $45.5 million average annual receipts). 2023. https://www.sba.gov/document/support-table-size-standards
5. International Air Transport Association (IATA). More Aircraft Are Leased Than Owned by Airlines Globally (leased share ~58% at year-end 2023). 2024. https://www.iata.org/en/iata-repository/publications/economic-reports/more-aircraft-are-leased-than-owned-by-airlines-globally/
6. AerCap Holdings N.V. 2025 Form 20-F (fleet, lease revenue, funding, rate sensitivity, Ukraine recoveries). 2026. https://www.sec.gov/Archives/edgar/data/1378789/000162828026007513/aer-20251231.htm
7. Air Lease Corporation. Completion of Acquisition and Delisting — Form 8-K ($65/share; renamed Sumisho Air Lease; Sumitomo/Apollo/Brookfield/SMBC). April 2026. https://www.sec.gov/Archives/edgar/data/1487712/000119312526147571/d139383d8k.htm
8. GATX Corporation. 2025 Form 10-K (fleet ~156,000 cars; utilization; renewal pricing; debt). 2026. https://www.sec.gov/Archives/edgar/data/40211/000004021126000018/gmt-20251231.htm
9. GATX Corporation. GATX and Brookfield Infrastructure Complete Acquisition of Wells Fargo Rail Assets (~101,000 cars; ~$4.2 billion; GABX 70% Brookfield / 30% GATX). 2026. https://www.sec.gov/Archives/edgar/data/40211/000119312526001584/d11398dex991.htm
10. GATX Corporation. Company Overview: North American Railcar Fleet and Ownership (Umler basis; ~1.65 million cars; independent lessors ~57%). 2024. https://s28.q4cdn.com/292281939/files/doc_presentations/2024/May/10/2024-company-overview_final_05-09-24.pdf
11. Trinity Industries, Inc. 2025 Form 10-K (101,485 lease cars; 146,270 managed; utilization; manufacturing backlog; rate sensitivity). 2026. https://www.sec.gov/Archives/edgar/data/99780/000009978026000014/trn-20251231.htm
12. The Greenbrier Companies. 2025 Form 10-K (~17,000 owned lease cars). 2025. https://www.sec.gov/Archives/edgar/data/923120/000119312525253612/gbx-20250831.htm
13. Willis Lease Finance Corporation. 2025 Form 10-K (363 engines; 20 aircraft). 2026. https://www.sec.gov/Archives/edgar/data/1018164/000101816426000041/wlfc-20251231.htm
14. Wabtec Corporation. 2025 Form 10-K (~24,600-locomotive installed base). 2026. https://www.sec.gov/Archives/edgar/data/943452/000162828026008067/wab-20251231.htm
15. Triton International. 2025 Form 20-F (7.4 million TEU; ~47% of global container fleet leased / 27.9 million TEU; utilization; residual-life changes). 2026. https://www.sec.gov/Archives/edgar/data/1660734/000166073426000005/trtn-20251231.htm
16. Brookfield Infrastructure. Acquisition of Triton International (~$13.3 billion enterprise value; completed Sept 2023). 2023. https://www.sec.gov/Archives/edgar/data/1406234/000117184323002251/exh_991.htm
17. Stonepeak. Textainer to Be Acquired by Stonepeak for $7.4 Billion (2024); Textainer–Seaco combination (Dec 2025). 2023–2025. https://stonepeak.com/news/textainer-to-be-acquired-by-stonepeak-for-7-4-billion
18. Berkshire Hathaway (2025 Annual Report, Union Tank Car/Procor ~118,000 cars) and American Industrial Transport (AITX Expands Fleet as SMBC Rail Acquisition Closes, 2023). 2023–2026. https://www.berkshirehathaway.com/2025ar/2025ar.pdf; https://aitx.com/posts/aitx-expands-fleet-offering-as-acquisition-of-smbc-rail-services-closes/
19. Association of American Railroads. 2025 Annual Rail Traffic (11.51 million carloads; 14.06 million intermodal units). 2025. https://www.aar.org/wp-content/uploads/2025/12/2025-12-31-railtraffic.pdf
20. IATA (Full-Year 2025 Passenger Market Performance, +5.3%, 83.6% load factor); Boeing (2025 Commercial Market Outlook, ~43,600 deliveries 2025–2044); Airbus (Global Market Forecast 2025–2044, ~43,400). 2025–2026. https://www.iata.org/en/pressroom/2026-releases/2026-01-29-02/
21. Global Ship Lease. 2025 Form 20-F (vessel value/rate history; containership order book ~35% of fleet); SFL and Danaos 20-Fs. 2026. https://www.sec.gov/Archives/edgar/data/1430725/000114036126009637/gsl-20251231.htm
22. UNIDROIT, Cape Town Convention: Aircraft Protocol; U.S. Code, 11 U.S.C. §§1110 & 1168 (aircraft/vessel and rolling-stock repossession rights). Accessed 2026. https://www.unidroit.org/instruments/security-interests/aircraft-protocol/; https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title11-section1110
23. Federal Railroad Administration (tank-car / DOT-111 phaseout & 2024 freight-car rule); U.S. Maritime Administration (Jones Act); International Maritime Organization (EEXI/CII; 2023 GHG strategy and net-zero framework status). 2023–2026. https://railroads.fra.dot.gov/; https://www.maritime.dot.gov/ports/domestic-shipping/domestic-shipping; https://www.imo.org/en/ourwork/environment/pages/short-term-ghg-reduction-measure.aspx
24. IBA Group. Aircraft Values & Lease Rates, September 2024 (new-technology narrowbody rents up to ~$410k/month; mid-life ~$230–250k/month; lease-rate-factor context). 2024. https://www.iba.aero/resources/articles/aircraft-values-lease-rates-september-2024/
25. MarketBeat and FinanceCharts. AerCap, GATX, and Trinity Industries price and dividend data (yields ~1.1% / ~1.5% / ~3.4% as of July 17, 2026). 2026. https://www.marketbeat.com/stocks/NYSE/AER/; https://www.financecharts.com/stocks/TRN/dividends/dividend-yield

Notes: Sources 1–4 are our ingested U.S. federal statistics and are the authoritative figures for this industry's core size and concentration. Sources 5, 10, 20, 21, and 24 are reputable industry/appraisal sources used for fleet-share, lease-rate, and market-structure context where no federal series exists. Company figures (6–18) are primary SEC filings and press releases. Lease-rate factors and monthly rents are industry rules of thumb and appraisal estimates, not official statistics. Market capitalizations and dividend yields are approximate as of mid-July 2026 and move continuously.