Is LMT a Buy? What to Consider in 2026
Last updated June 2026
Short answer
There is no universal answer to whether LMT is a buy; it depends on your thesis, time horizon, and what you already own. Below is the case for Lockheed Martin, the main risks to weigh, where the stock trades, and a framework to decide for yourself. This is informational, not a recommendation, and Walnut is not an investment adviser.
Lockheed Martin is the largest defense contractor in the world, generating the vast majority of its revenue from the US government and allied militaries. It is organized into four segments: Aeronautics (home of the F-35 Lightning II, F-22, and C-130, the largest segment), Rotary and Mission Systems (Sikorsky helicopters, combat systems, radar, and sensors), Missiles and Fire Control (precision missiles, HIMARS, PAC-3 interceptors, and hypersonics), and Space (satellites, missile-defense systems, and strategic and hypersonic programs). Lockheed designs, builds, and sustains some of the most advanced and mission-critical weapons systems in the world, including the F-35, its single largest program, which generates long-tail revenue from production, upgrades, and decades of sustainment. The company makes money under long-term government contracts, with a large multi-year backlog that provides revenue visibility. It pursues hypersonics, missile defense, and space as growth areas. As a flagship defense name, Lockheed is a steady cash generator that returns substantial capital to shareholders. Headquartered in Bethesda, Maryland.
The case for Lockheed Martin
1. The F-35 franchise.
The F-35 Lightning II is the largest defense program in the world and Lockheed's flagship product. With thousands of aircraft planned across the US and dozens of allied nations, the F-35 generates revenue not only from production but from decades of upgrades, sustainment, and spare parts, creating a durable, long-tail annuity that anchors the company.
2. Rising defense budgets and munitions demand.
Geopolitical tension, the war in Ukraine, and great-power competition are driving sustained US and allied defense spending. Lockheed's missiles and fire-control business (HIMARS, PAC-3, Javelin partnership) is in high demand as nations replenish and expand munitions stockpiles, a structurally growing tailwind.
3. Missile defense, space, and hypersonics.
Lockheed is a leader in missile defense (THAAD, PAC-3), strategic systems, satellites, and hypersonic weapons, all national-security priorities. These programs position the company at the frontier of modernization spending and offer growth avenues beyond traditional aircraft, supported by long-term government commitments.
4. Massive backlog and capital returns.
Lockheed carries a backlog well over $150 billion, providing multi-year revenue visibility. The predictable cash flow funds a steadily growing dividend and large share buybacks, making it a core holding for income and defensive investors who value the durability of government-backed contracts.
The risks to weigh
Lockheed depends overwhelmingly on US and allied defense budgets, so spending cuts, continuing resolutions, shutdowns, or shifting priorities directly threaten revenue. Heavy concentration in the F-35 means program delays, cost overruns, or reduced order quantities have an outsized impact. Large fixed-price development and classified programs can incur losses, and Lockheed has taken charges on troubled contracts. Supply-chain constraints, engine and parts shortages, and procurement protests pressure deliveries. Defense stocks can de-rate on hopes of reduced geopolitical tension or budget pressure, and the business faces regulatory, political, and contract-concentration risk.
Valuation context (as of early 2026)
- Revenue (TTM): ~$72 billion
- Operating margin: ~11-12%
- Net income (TTM): ~$5-6 billion
- P/E (TTM): ~17x
- Dividend yield: ~2.5-3%
- Backlog: ~$160+ billion in contracted future revenue
- Free cash flow: ~$5-6 billion annually
Lockheed trades at a defense-sector multiple supported by an enormous backlog, predictable government revenue, and reliable free cash flow that funds a growing dividend and large buybacks. The valuation reflects the durability of defense spending and the F-35 annuity, offset by program-concentration risk and occasional charges on fixed-price contracts. As a defensive cash compounder, Lockheed is often valued on free cash flow and backlog visibility as much as headline earnings.
How to decide for yourself
Rather than asking whether LMT is a buy in the abstract, it tends to help to answer four questions:
- Thesis: do you believe the case above, and is it still true today?
- Time horizon: a single stock can be volatile, so a longer horizon absorbs more of the swings.
- Position sizing: a thesis can be right and the sizing still wrong; decide how much of your portfolio one name should be.
- Overlap: check whether you already hold LMT indirectly through an index or sector ETF before adding more.
For the full picture, see the LMT stock guide (what the company does, the ETFs that hold it, similar stocks, and the themes it fits). In Walnut you can ask its AI about LMT against your real portfolio and see your actual exposure before deciding.
Build a basket around LMT with Walnut
Use Lockheed Martin as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
Is LMT a good stock to buy right now?
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There is no universal answer. Whether Lockheed Martin fits depends on your thesis, time horizon, risk tolerance, and what you already own. This page lays out the case for, the main risks, and where the stock trades, so you can decide for yourself. Walnut is not an investment adviser and this is not a recommendation.
What does Lockheed Martin do?
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World's largest defense contractor anchored by the F-35; huge backlog, steady cash flow, growing dividend.
What are the main risks of LMT?
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Lockheed depends overwhelmingly on US and allied defense budgets, so spending cuts, continuing resolutions, shutdowns, or shifting priorities directly threaten revenue. Heavy concentration in the F-35 means program delays, cost overruns, or reduced order quantities have an outsized impact. Large fixed-price development and classified programs can incur losses, and Lockheed has taken charges on troubled contracts. Supply-chain constraints, engine and parts shortages, and procurement protests pressure deliveries. Defense stocks can de-rate on hopes of reduced geopolitical tension or budget pressure, and the business faces regulatory, political, and contract-concentration risk.
What is LMT's ticker symbol?
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LMT, listed on the New York Stock Exchange. Officially Lockheed Martin Corporation, headquartered in Bethesda, Maryland. It trades during US market hours and is available at every major US brokerage.
What does Lockheed Martin do?
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Lockheed Martin is the world's largest defense contractor. It designs, builds, and sustains advanced weapons systems including the F-35 fighter, Sikorsky helicopters, HIMARS and PAC-3 missiles, missile-defense systems, satellites, and hypersonics, selling mainly to the US government and allied militaries.
Who are Lockheed Martin's main competitors?
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Boeing Defense, Northrop Grumman, RTX (Raytheon), and General Dynamics are the primary US rivals. Internationally, the F-35 competes with Eurofighter, Dassault Rafale, and Saab Gripen for allied fighter contracts.
What is the F-35 program?
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The F-35 Lightning II is the largest defense program in the world and Lockheed's flagship. Thousands of jets are planned across the US and dozens of allied nations, generating revenue from production plus decades of upgrades, sustainment, and spare parts, making it a long-tail annuity for the company.
Walnut is informational and is not an investment adviser. This page is educational and not a recommendation to buy or sell LMT; figures are approximate and dated, and your own situation, time horizon, and risk tolerance should drive any decision. Verify current data before investing.