Record backlog and missile demand offset fixed-price execution risks
- Lockheed Martin relies heavily on U.S. and allied defense spending, with the U.S. Government historically driving roughly 70% of sales.
- A new $35 billion THAAD contract pushed total backlog to a record $230 billion in the second quarter of 2026.
- Missiles and Fire Control is the main growth engine as global munitions demand accelerates.
- The company resolved its first-quarter cash flow delays and generated nearly $3 billion in second-quarter free cash flow.
- Finn sees a mixed picture because fixed-price contract mistakes keep threatening profit margins.
Munitions ramp materializes, but trust requires perfect delivery
The bull case is grounded in massive, validated demand. Lockheed is aggressively increasing munitions output. This strategy recently landed a $35 billion contract to quadruple THAAD interceptor production over seven years. The deal pushed the company backlog to a record $230 billion. Management believes these new commercial framework agreements will let Lockheed retain more margin upside if it can scale efficiently.
Cash flow generation also recovered. The company generated nearly $3 billion in free cash flow during the second quarter of 2026. This resolved investor concerns about a temporary first-quarter dip caused by an accounting software transition.
The bear case centers entirely on delivery. Fixed-price contracts set the payment amount ahead of time. When costs run high, Lockheed eats the difference. The company has suffered severe write-downs in recent years. While the most catastrophic losses seem contained, smaller execution missteps on legacy aircraft programs prove the risk remains active.
The central question is whether Lockheed can run its newer, massive missile contracts without repeating the margin errors of its aircraft and helicopter divisions.
Paid by governments, judged by execution
Lockheed sells advanced defense products and services through long-term government contracts. The U.S. Government accounted for 74% of net sales in the first half of 2024. International customers make up the rest, though many foreign sales still move through U.S. government channels.
The company earns revenue by designing, building, upgrading, and sustaining systems that last for decades. Fighter jets, missiles, naval combat systems, and satellites are hard to replace once a customer builds training and mission protocols around them.
This model breaks when programs are mispriced or delayed. On fixed-price work, Lockheed must absorb extra labor, supply chain, and engineering costs. A huge backlog is only valuable if the company can deliver the systems on budget.
Jets, missiles, ships, and space
F-35 and military aircraft
Aeronautics builds and sustains the F-35, F-16, C-130, and F-22. The F-35 remains a massive anchor for the company.
Air and missile defense
Missiles and Fire Control handles PAC-3 and THAAD systems. A recent $35 billion THAAD contract highlights the massive global demand in this category.
Tactical and strike missiles
Programs like JASSM, LRASM, GMLRS, and PrSM are benefiting from sharp production ramps to restock allied inventories.
Helicopters and mission systems
Rotary and Mission Systems includes Sikorsky helicopters, Aegis naval systems, radars, and cyber security services.
Space systems
Space builds satellites, missile systems, and exploration hardware. This segment includes the Fleet Ballistic Missile and Next Generation Interceptor programs.
Sustainment and services
After systems are delivered, Lockheed earns high-margin recurring revenue from maintenance, upgrades, and parts support.
Sales mix
Segment shares use net sales for the quarter ended March 29, 2026. Aeronautics remains the largest division, meaning aircraft cost overruns carry outsized weight on total company profits.
What could go wrong
Fixed-price cost overruns
High impact · High oddsLockheed continually faces cost and schedule trouble on fixed-price programs. Even when major writedowns fade, smaller hits on legacy programs compress margins. The company acknowledges risk for further losses across multiple business segments.
U.S. defense budget cuts
High impact · Medium oddsThe U.S. Government supplies the vast majority of sales. Changes in defense budget priorities, political standoffs, or spending limits can delay contract awards and slow revenue growth.
F-35 program delays
High impact · Medium oddsThe F-35 is central to Aeronautics and the company overall. The program still carries risks around modernization milestones, software updates, sustainment costs, and supply chain health. Any delivery pause can defer significant revenue.
ULA joint venture exposure
Medium impact · Medium oddsLockheed faces financial exposure related to the United Launch Alliance joint venture and the Vulcan Centaur rocket. The company expects to provide financial guarantees and may face operating losses or investment impairments if Vulcan development struggles.
In one breath
How does Lockheed Martin make money?
Lockheed makes money by selling defense systems, services, and support to governments. Its largest customer is the U.S. Government.
Why is Lockheed's backlog growing so fast?
Global demand for munitions and air defense is surging. A recent $35 billion contract to build THAAD interceptors helped push the company backlog to a record $230 billion in mid-2026.
What is the main risk for Lockheed Martin stock?
The main risk is execution on fixed-price contracts. When building complex defense systems takes longer or costs more than estimated, Lockheed often has to absorb those extra costs.
Did the company fix its cash flow issues?
Yes. First-quarter cash flow was negative due to software transition delays, but the company generated nearly $3 billion in free cash flow during the second quarter of 2026.
