Willis Lease Finance Corp (WLFC) Stock Analysis and Metrics

Willis Lease Finance

NASDAQ: WLFC

$56.58 ▼ -4.47 (-7.32%)

At close: Aug 10, 2026 · 4:00 PM UTC

Financial Ratios

Market Cap1.42 Bn

P/E10.68

P/S1.85

Div. Yield0.01

Total Debt (Qtr)2.32 Bn

Revenue Growth (1y) (Qtr)-0.76

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About

Willis Lease Finance Corporation is a leading lessor and servicer of commercial aircraft and aircraft engines. The company acquires commercial aircraft and engines and manages those assets to generate returns primarily through lease rent, maintenance reserve revenues, and management fees for assets owned by third parties. It operates globally with a portfolio that includes engines, aircraft, marine vessels and related parts and equipment.

The company generates revenue mainly from leasing activities and spare parts sales. Leasing revenue consists of rent received on operating leases, maintenance reserves paid by lessees to cover future maintenance costs, and fees earned for managing engines owned by others. Spare parts revenue is derived from the sale of aircraft engine parts and materials through its wholly owned subsidiary Willis Aero, which acquires parts via acquisition or consignment from third parties or from the leasing portfolio.

The company operates through the following segments: Leasing and Related Operations and Spare Parts Sales.

• Leasing and Related Operations focuses on leasing aircraft and aircraft engines and providing related services to a diversified group of commercial aircraft operators and maintenance repair and overhaul organizations worldwide. The segment acquires engines through sale leaseback transactions, purchases from manufacturers or other lessors, and manages the portfolio to earn lease rent, maintenance reserves and management fees. It also offers engine storage, Part 145 maintenance and aircraft tear down services to customers.

• Spare Parts Sales is conducted by the wholly owned subsidiary Willis Aero, which sells aircraft engine parts and materials obtained by acquisition or consignment from third parties or from the leasing portfolio. This segment provides end of life solutions for surplus aircraft and engines, manages the full life cycle of lease assets, enhances returns on the engine portfolio through the use of used serviceable material and creates incremental value for shareholders.

Willis Lease Finance Corporation holds a competitive position in the specialized engine leasing market, where it competes with aircraft engine manufacturers, other aircraft and engine lessors, airline service and repair companies, and spare parts distributors. Its advantages stem from a high quality portfolio of noise compliant Stage IV engines, strong supply reliability, a reputation for high levels of customer service, and an engine pooling arrangement that gives lessees quick access to spare engines. The company’s global presence and ability to transfer engines across jurisdictions further strengthen its market standing.

The company serves a broad base of commercial aircraft operators and maintenance repair and overhaul organizations. As of the end of 2025 it had 69 lessees located in 37 countries, spanning airlines, manufacturers and MROs worldwide. No specific customer names are disclosed in the filing.

Investment Thesis

▲ Bull case

Willis Lease Finance Corporation is positioned to capitalize on the structural shift toward engine-centric leasing, where modern technology engines like LEAP, GTF, and GEnx—already comprising over 50% of its portfolio—are experiencing sustained demand due to extended maintenance timelines and constrained spare engine supply, which has driven utilization to 85.8% and lease rate factors to 1.04%, resulting in record lease rent revenue of $77.4 million in Q1 2026; this trend is not merely cyclical but reflects a durable industry realignment where airlines prioritize leasing over costly engine overhauls during periods of fuel price volatility and liquidity pressure, allowing WLFC to capture higher-margin, longer-duration leases with minimal downside risk as midlife engine values remain resilient due to their role in avoiding expensive shop visits, creating a self-reinforcing cycle of strong cash flow and portfolio quality.
The Willis Aviation Capital (WAC) platform represents a hidden, high-margin growth engine that management underplayed during the call, with over $2.7 billion of committed or deployed capital across partnerships with Blackstone Credit & Insurance and Liberty Mutual Investments, generating $4.9 million in management fees in Q1 2026 alone from the LMI fund—fees that are pure recurring income with minimal incremental cost—and poised to scale rapidly as WLFC deploys an additional $200 million from its balance sheet into the Blackstone fund in Q2 2026, creating a flywheel effect where asset management fees and carried interest will become a material contributor to earnings while simultaneously expanding the serviceable asset base for its MRO and parts businesses, thereby enhancing vertical integration and reducing reliance on volatile lease margin fluctuations.
The company’s strategic pivot to in-house core engine restoration capabilities—branded the Willis Module Shop—through the successful CFM56-7B restoration in its U.S.-based repair center is a de-risking initiative that directly addresses the industry’s bottleneck in engine shop visit capacity, with management noting that this vertical integration reduces maintenance costs, improves turnaround time, and strengthens asset control; this capability is not merely an operational upgrade but a structural advantage that will drive portfolio returns over time by enabling WLFC to capture more value from off-wing engines through faster re-lease cycles and lower OEM dependency, particularly as demand for technical maintenance expertise is projected to remain strong through the mid-2030s, turning a historical cost center into a proprietary, scalable profit center with high barriers to entry for competitors.
Despite macroeconomic headwinds from elevated fuel prices and geopolitical tensions, WLFC’s financial flexibility—evidenced by a low net leverage of 2.68x, a $1.75 billion revolver with $750 million of undrawn capacity, and $1.5 billion of discretionary capital ready for deployment—provides it with unprecedented firepower to exploit distressed opportunities in the aviation market, such as sale-and-leaseback transactions for unencumbered aircraft and engines, which management highlighted as a key liquidity tool for airlines; this positioning allows WLFC to acquire high-quality assets at discounted valuations during periods of airline stress, similar to its historical countercyclical performance, thereby setting up multi-year accretive growth that the market is currently underestimating due to short-term focus on fuel price volatility rather than the structural durability of its leasing model in stressed environments.
Willis Lease Finance Corporation’s reported Q1 2026 adjusted EBITDA growth of 19.9% to $123.8 million is being driven significantly by non-recurring and accounting-related items, including a $7 million loss on debt extinguishment (largely non-cash acceleration of capitalized issuance costs) and a $4.9 million increase in share-based compensation tied to prior grants vesting after a 300% stock price surge since mid-2024, which inflates earnings without reflecting sustainable operational performance; the company’s new share-based compensation plan, while intended to reduce future expense, will not deliver savings until prior grants fully roll off, meaning near-term profitability remains artificially buoyed by equity-driven accounting effects rather than core leasing or service margins, creating a risk that reported earnings overstate underlying cash generation capacity.

Willis Lease Finance Corporation is positioned to capitalize on the structural shift toward engine-centric leasing, where modern technology engines like LEAP, GTF, and GEnx—already comprising over 50% of its portfolio—are experiencing sustained demand due to extended maintenance timelines and constrained spare engine supply, which has driven utilization to 85.8% and lease rate factors to 1.04%, resulting in record lease rent revenue of $77.4 million in Q1 2026; this trend is not merely cyclical but reflects a durable industry realignment where airlines prioritize leasing over costly engine overhauls during periods of fuel price volatility and liquidity pressure, allowing WLFC to capture higher-margin, longer-duration leases with minimal downside risk as midlife engine values remain resilient due to their role in avoiding expensive shop visits, creating a self-reinforcing cycle of strong cash flow and portfolio quality.
The Willis Aviation Capital (WAC) platform represents a hidden, high-margin growth engine that management underplayed during the call, with over $2.7 billion of committed or deployed capital across partnerships with Blackstone Credit & Insurance and Liberty Mutual Investments, generating $4.9 million in management fees in Q1 2026 alone from the LMI fund—fees that are pure recurring income with minimal incremental cost—and poised to scale rapidly as WLFC deploys an additional $200 million from its balance sheet into the Blackstone fund in Q2 2026, creating a flywheel effect where asset management fees and carried interest will become a material contributor to earnings while simultaneously expanding the serviceable asset base for its MRO and parts businesses, thereby enhancing vertical integration and reducing reliance on volatile lease margin fluctuations.
The company’s strategic pivot to in-house core engine restoration capabilities—branded the Willis Module Shop—through the successful CFM56-7B restoration in its U.S.-based repair center is a de-risking initiative that directly addresses the industry’s bottleneck in engine shop visit capacity, with management noting that this vertical integration reduces maintenance costs, improves turnaround time, and strengthens asset control; this capability is not merely an operational upgrade but a structural advantage that will drive portfolio returns over time by enabling WLFC to capture more value from off-wing engines through faster re-lease cycles and lower OEM dependency, particularly as demand for technical maintenance expertise is projected to remain strong through the mid-2030s, turning a historical cost center into a proprietary, scalable profit center with high barriers to entry for competitors.
Despite macroeconomic headwinds from elevated fuel prices and geopolitical tensions, WLFC’s financial flexibility—evidenced by a low net leverage of 2.68x, a $1.75 billion revolver with $750 million of undrawn capacity, and $1.5 billion of discretionary capital ready for deployment—provides it with unprecedented firepower to exploit distressed opportunities in the aviation market, such as sale-and-leaseback transactions for unencumbered aircraft and engines, which management highlighted as a key liquidity tool for airlines; this positioning allows WLFC to acquire high-quality assets at discounted valuations during periods of airline stress, similar to its historical countercyclical performance, thereby setting up multi-year accretive growth that the market is currently underestimating due to short-term focus on fuel price volatility rather than the structural durability of its leasing model in stressed environments.
Willis Lease Finance Corporation’s reported Q1 2026 adjusted EBITDA growth of 19.9% to $123.8 million is being driven significantly by non-recurring and accounting-related items, including a $7 million loss on debt extinguishment (largely non-cash acceleration of capitalized issuance costs) and a $4.9 million increase in share-based compensation tied to prior grants vesting after a 300% stock price surge since mid-2024, which inflates earnings without reflecting sustainable operational performance; the company’s new share-based compensation plan, while intended to reduce future expense, will not deliver savings until prior grants fully roll off, meaning near-term profitability remains artificially buoyed by equity-driven accounting effects rather than core leasing or service margins, creating a risk that reported earnings overstate underlying cash generation capacity.

▼ Bear case

Willis Lease Finance Corporation’s reported Q1 2026 adjusted EBITDA growth of 19.9% to $123.8 million is being driven significantly by non-recurring and accounting-related items, including a $7 million loss on debt extinguishment (largely non-cash acceleration of capitalized issuance costs) and a $4.9 million increase in share-based compensation tied to prior grants vesting after a 300% stock price surge since mid-2024, which inflates earnings without reflecting sustainable operational performance; the company’s new share-based compensation plan, while intended to reduce future expense, will not deliver savings until prior grants fully roll off, meaning near-term profitability remains artificially buoyed by equity-driven accounting effects rather than core leasing or service margins, creating a risk that reported earnings overstate underlying cash generation capacity.
The rapid expansion of Willis Aviation Capital (WAC) introduces material counterparty and execution risks that management did not adequately address, particularly the reliance on external capital partners like Blackstone and Liberty Mutual to deploy funds at scale—despite announcing $200 million of balance sheet deployments into the Blackstone fund in Q2 2026, there is no guarantee that these commitments will be fully drawn or that the underlying assets will perform as expected, and the platform’s success hinges on the ability to originate, underwrite, and manage third-party capital efficiently, a nascent capability where WLFC has limited track record beyond its joint ventures, raising concerns about potential misalignment of incentives, credit quality deterioration in managed portfolios, and the diversion of management focus from core leasing operations to complex fund structuring and investor relations.
The services segment, while growing maintenance revenue by 74.9% to $9.8 million in Q1 2026, remains heavily dependent on the legacy BAML business divested in late Q2 2025, with management acknowledging that the current period lacks comparable fleet management revenues, meaning the reported growth is flattered by the absence of a prior-period drag; furthermore, the increase in technical expenses to $9.7 million—up from $6.2 million—suggests rising unplanned maintenance costs, which could indicate aging assets or inefficiencies in the MRO network, and the company’s investment in the Willis Module Shop, while promising, requires significant capital and time to scale, with no clear timeline for when it will meaningfully contribute to earnings, leaving the services business vulnerable to margin pressure if OEMs or third-party MROs improve their turnaround times or pricing competitiveness in the growing engine maintenance market.
WLFC’s leverage, while improved to 2.68x net debt-to-equity, remains sensitive to interest rate fluctuations and debt market conditions, with a weighted average cost of debt at 5.12% and total indebtedness flat at $2.25 billion year-over-year; the company’s reliance on floating-rate debt and recent refinancing activity—which triggered the $7 million loss on debt extinguishment—exposes it to refinancing risk in a potentially higher-for-longer interest rate environment, and any deterioration in airline credit quality due to prolonged fuel price pressures or liquidity constraints could lead to higher lease delinquencies, lower utilization, or forced asset sales at distressed values, undermining the assumed resilience of its portfolio and challenging the narrative that it is well-hedged against macroeconomic downturns through its modern engine mix.

Willis Lease Finance Corporation’s reported Q1 2026 adjusted EBITDA growth of 19.9% to $123.8 million is being driven significantly by non-recurring and accounting-related items, including a $7 million loss on debt extinguishment (largely non-cash acceleration of capitalized issuance costs) and a $4.9 million increase in share-based compensation tied to prior grants vesting after a 300% stock price surge since mid-2024, which inflates earnings without reflecting sustainable operational performance; the company’s new share-based compensation plan, while intended to reduce future expense, will not deliver savings until prior grants fully roll off, meaning near-term profitability remains artificially buoyed by equity-driven accounting effects rather than core leasing or service margins, creating a risk that reported earnings overstate underlying cash generation capacity.
The rapid expansion of Willis Aviation Capital (WAC) introduces material counterparty and execution risks that management did not adequately address, particularly the reliance on external capital partners like Blackstone and Liberty Mutual to deploy funds at scale—despite announcing $200 million of balance sheet deployments into the Blackstone fund in Q2 2026, there is no guarantee that these commitments will be fully drawn or that the underlying assets will perform as expected, and the platform’s success hinges on the ability to originate, underwrite, and manage third-party capital efficiently, a nascent capability where WLFC has limited track record beyond its joint ventures, raising concerns about potential misalignment of incentives, credit quality deterioration in managed portfolios, and the diversion of management focus from core leasing operations to complex fund structuring and investor relations.
The services segment, while growing maintenance revenue by 74.9% to $9.8 million in Q1 2026, remains heavily dependent on the legacy BAML business divested in late Q2 2025, with management acknowledging that the current period lacks comparable fleet management revenues, meaning the reported growth is flattered by the absence of a prior-period drag; furthermore, the increase in technical expenses to $9.7 million—up from $6.2 million—suggests rising unplanned maintenance costs, which could indicate aging assets or inefficiencies in the MRO network, and the company’s investment in the Willis Module Shop, while promising, requires significant capital and time to scale, with no clear timeline for when it will meaningfully contribute to earnings, leaving the services business vulnerable to margin pressure if OEMs or third-party MROs improve their turnaround times or pricing competitiveness in the growing engine maintenance market.
WLFC’s leverage, while improved to 2.68x net debt-to-equity, remains sensitive to interest rate fluctuations and debt market conditions, with a weighted average cost of debt at 5.12% and total indebtedness flat at $2.25 billion year-over-year; the company’s reliance on floating-rate debt and recent refinancing activity—which triggered the $7 million loss on debt extinguishment—exposes it to refinancing risk in a potentially higher-for-longer interest rate environment, and any deterioration in airline credit quality due to prolonged fuel price pressures or liquidity constraints could lead to higher lease delinquencies, lower utilization, or forced asset sales at distressed values, undermining the assumed resilience of its portfolio and challenging the narrative that it is well-hedged against macroeconomic downturns through its modern engine mix.

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6	GATX	Gatx Corp	6.35 Bn	27.00	3.09	-
7	CAR	Avis Budget Group, Inc.	5.02 Bn	-7.52	0.43	6.02 Bn
8	WSC	WillScot Holdings Corp	4.41 Bn	-64.94	1.94	3.50 Bn

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Investment Thesis

Segments Breakdown of Revenue (2025)

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Research Tools

Datasets

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About

Investment Thesis

Segments Breakdown of Revenue (2025)

Peer Comparison

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