The world's largest aircraft lessor with a fleet of 3,600+ aircraft — a scale monopolist in aviation leasing with pricing power, tax efficiency, and a structurally growing market
Pat Dorsey
Dorsey Asset Management
“Pat Dorsey: 'AerCap has a moat that most investors don't see. Scale in aircraft leasing creates advantages in purchasing, financing, and fleet management that smaller competitors simply cannot replicate.'”
The Business
- AerCap Holdings is the world's largest aircraft leasing company, owning, managing, or ordering approximately 3,600 aircraft, engines, and helicopters
- The company leases aircraft to approximately 300 airline customers in 80+ countries, providing fleet flexibility and off-balance-sheet financing
- AerCap acquired GECAS from GE in 2021, consolidating the industry and creating a dominant market leader
- FY2025: $8.5B revenue, $3.8B net income, 44% profit margin, with a fleet valued at $50B+
Why They Own It
“Pat Dorsey: 'AerCap has a moat that most investors don't see. Scale in aircraft leasing creates advantages in purchasing, financing, and fleet management that smaller competitors simply cannot replicate.'”
- AerCap is the world's largest aircraft lessor with 3,600+ aircraft — a scale monopolist with pricing power in a structurally growing market
- FY2025: $8.5B revenue, $3.8B net income (+79%), $21.30 EPS — aircraft demand and rising lease rates driving exceptional profitability
- Bulk purchasing power — AerCap buys aircraft from Boeing and Airbus at discounts that smaller lessors cannot access
- Airlines are increasingly leasing rather than buying aircraft, providing a secular tailwind for the leasing model
- Dorsey, the moat expert, sees AerCap's scale, fleet diversity, and financing advantages as creating a wide, durable competitive advantage
What the investor sees
AerCap trades at approximately $100/share with a market cap of ~$17B — just 5x FY2025 earnings and well below book value. Dorsey's thesis is that the market persistently undervalues AerCap because investors view leasing as capital-intensive and cyclical, but the reality is that AerCap's scale creates a structural advantage: better aircraft pricing, cheaper financing, and broader customer relationships. The current supply shortage (Boeing delivery delays) is driving lease rates higher, benefiting AerCap's existing fleet.
Financial Snapshot
$8.5B
revenue FY2025
$3.8B
net income
~$17B
market cap
$21.30
eps
44%
profit margin
3,600+ aircraft
fleet size
~300
airline customers
80+
countries
The Moat
- Scale monopoly — world's largest fleet (3,600+ aircraft) provides purchasing, financing, and operational advantages no competitor can match
- Bulk purchasing power — AerCap buys aircraft at discounts from Boeing and Airbus that smaller lessors cannot access
- Investment-grade financing — lower cost of capital enables AerCap to earn higher spreads on leases
- Fleet diversity — broad fleet of narrow-body, wide-body, and regional aircraft serves every airline need
- Global customer relationships — 300+ airline customers in 80+ countries provide placement flexibility for aircraft
What Could Go Wrong
Aircraft oversupply — if Boeing and Airbus accelerate deliveries, lease rates could decline
Airline defaults — airline bankruptcies can result in aircraft being returned and re-leased at lower rates
Interest rate sensitivity — higher rates increase AerCap's financing costs and can compress margins
Residual value risk — aircraft values can decline due to technology changes, fuel efficiency improvements, or oversupply
Geopolitical risk — sanctions or conflict can strand aircraft in certain countries (as happened with Russia in 2022)
Catalysts
- Boeing delivery delays — constrained new aircraft supply is driving lease rates higher for AerCap's existing fleet
- Share buybacks — at 5x earnings, buybacks are extraordinarily accretive to per-share value
- Airlines increasingly preferring leasing over ownership provides secular demand growth
- Aircraft trading gains — buying and selling aircraft at favorable prices generates additional profits
- Fleet modernization — transitioning to newer, fuel-efficient aircraft increases fleet value and lease rates
In Their Own Words
“Pat Dorsey: 'The best moats are often found in unglamorous industries. Aircraft leasing doesn't get attention from tech-focused investors, which is exactly why AerCap trades at 5x earnings.'”
“Pat Dorsey: 'When Boeing and Airbus have massive delivery backlogs and airlines need to grow, AerCap's existing fleet becomes incredibly valuable. The supply-demand dynamics are strongly in their favor.'”