Loar converts its pipeline and proves the model scales
- Loar sells small but important aerospace and defense parts that can be hard to replace once approved on an aircraft.
- Aftermarket sales were about 55% of 2025 revenue, giving Loar repeat demand from aircraft already in service.
- The company converted a large chunk of its new business pipeline in Q2 2026, securing $200 million in expected organic revenue.
- The bull case is playing out quickly as Loar held a record 40.5% adjusted EBITDA margin and raised full-year guidance.
- The main checks on the story are balance sheet debt and the operational challenge of building enough factory capacity to meet strong demand.
A stronger roll-up with high margins and fast execution
Loar buys and builds companies that make niche aircraft parts. The key idea is simple. Once a part is approved on an aircraft, customers rarely switch suppliers. That gives Loar pricing power and repeat sales, especially in the aftermarket, which provides replacement parts and repairs for aircraft already flying.
The Q2 2026 update confirmed the bull case is moving faster than expected. The company maintained a record 40.5% adjusted EBITDA margin, proving its operating model works. Management also announced it converted part of its organic pipeline into $200 million of expected revenue over five years. At the same time, defense ordering returned to normal levels after a temporary slowdown earlier in the year.
The main worry earlier in 2026 was that aggressive acquisitions were hiding weaker profit quality. Management pushed back on that, showing that new deals like Harper Engineering are actually outperforming targets. Lower GAAP net income remains a factor due to higher interest and non-cash acquisition charges, but the cash flow generation is strong.
This is a premium story priced for execution. The Finn view acknowledges the high valuation. If Loar keeps margins near 40%, handles its factory expansion well, and keeps paying down debt, the thesis can keep improving. If debt costs stay high, integration stumbles, or capacity fails to meet demand, the premium price will leave little room for error.
Tiny parts with sticky market positions
Loar makes highly engineered components for aircraft and defense systems. Its parts include safety restraints, braking elements, lighting, filtration, and cockpit switches. Many are small in dollar size compared with the full aircraft, but they matter immensely for safety and performance.
The company makes money in two main ways. First, it sells parts to aircraft makers and defense programs as original equipment. Second, it sells aftermarket parts after the aircraft is in service. In 2025, aftermarket was about 55% of revenue and OEM was about 45%. Aftermarket demand can be steadier because planes need parts for decades.
Growth comes from two engines. Loar tries to win new programs on its own, and the recent $200 million pipeline conversion proves this organic engine works. It also buys companies, then pushes pricing, cost controls, and cross-selling. The recent LMB and Harper Engineering deals added major scale, but they also made the balance sheet more important.
Where the model can break is clear. If Loar overpays for deals, fails to expand factories to meet demand, loses key customer approvals, or sees flight hours fall, profit can miss the high margin target. Debt adds pressure because more cash must go to interest before shareholders benefit.
Parts spread across the aircraft
Flight control and cockpit components
Auto throttles, cockpit panels, knobs, switches, and human-machine interface products help pilots control and monitor aircraft. These parts can be sticky once designed into a platform.
Safety restraints and fire barriers
Seat belts, lap-belt airbags, and fire barriers serve safety needs where certification matters. That can make switching suppliers slow and costly.
Braking and motion parts
Loar sells carbon and metallic brake discs, motion devices, rods, latches, bushings, and washers. These are narrow products, but many support long-lived aircraft fleets.
Sensors, switches, and ice protection
Temperature sensors, fluid sensors, switches, ice protection systems, and RAM air components fit the company’s high-IP niche strategy. New platform wins can turn into years of sales.
Water, air, and lighting systems
Water purification, illumination, filtration, and related cabin products broaden Loar beyond core mechanical parts. Beadlight added lighting, air filtration, and interface products in 2025.
Aftermarket replacement parts
Aftermarket is not one product line, but it is central to the model. It represented about 55% of 2025 revenue and can produce repeat demand as aircraft keep flying.
2025 sales mix by end market
Segment shares are from Loar’s 2025 Form 10-K for the year ended December 31, 2025. Loar also said 2025 sales were about 55% aftermarket and 45% OEM, so customer behavior after delivery matters as much as new aircraft builds.
What could break the thesis
Factory capacity limits growth
Medium impact · Medium oddsDemand is strong enough that Loar must invest in new capacity for Fans and Motors, Restraints, and Brakes. Expanding factories takes capital and management focus. If the company cannot scale up efficiently, margins could drop or customer deliveries could slip.
Debt costs eat the margin gain
High impact · Medium oddsThe LMB and Harper Engineering acquisitions added scale, but also increased financial pressure. Q1 2026 net income fell partly because interest expense was higher. If rates stay high or cash flow misses, more of Loar’s profit goes to lenders instead of owners.
Acquisitions look better on adjusted numbers than GAAP
Medium impact · Medium oddsLoar points to high adjusted EBITDA, but GAAP profit is pressured by non-cash acquisition charges like amortization and inventory step-up. Investors need to see those charges taper over time. If adjusted profit stays strong but actual cash flow lags, confidence can weaken.
Aerospace cycle turns down
High impact · Low oddsLoar depends heavily on commercial aerospace, business aviation, defense, and flight activity. A broad downturn in aircraft production, airline flying, or defense order timing would hit several parts of the business at once. That matters more when leverage is high.
In one breath
What does Loar Holdings do?
Loar designs and makes niche parts for aircraft and defense systems. Its products include auto throttles, restraints, brakes, sensors, switches, water systems, lighting, and cockpit components.
Why do investors care about Loar’s aftermarket sales?
Aftermarket means replacement parts and service for aircraft already in use. Loar said aftermarket was about 55% of 2025 revenue, which can make demand more repeatable than one-time aircraft build sales.
Why did Loar’s Q2 2026 update help the bull case?
The company maintained a record 40.5% adjusted EBITDA margin and converted a large part of its organic pipeline, securing $200 million in expected revenue over five years. Defense ordering also returned to normal patterns.
What is the biggest risk for Loar stock?
The main risks are debt and operational execution. If Loar cannot expand factory capacity efficiently or integrate new companies while keeping margins high, the stock could lose support.
