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3 Defense Stocks Trading Up To 42% Below Fair Value

Simply Wall St·10/15/2026 09:33:06
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Attacks on Saudi Arabian energy facilities, and the risk to key shipping routes, have pushed defense and security back to the top of government priority lists worldwide. That kind of focus can translate into long, predictable contracts for businesses that build aircraft, missiles, and critical support systems. This article breaks down three stocks from the US aerospace and defense supply chain that many investors are watching closely at the moment.

The three US aerospace and defense stocks below are just a starting sample, and the full screen surfaced 73 more companies with equally detailed stories that are not covered here.

If you want to go wider than this shortlist, head straight to the Aerospace And Defense screener to identify, analyze, and focus on the highest conviction plays across the sector.

Redwire (RDW)

Overview: Redwire builds space hardware and infrastructure such as star trackers, antennas, spacecraft platforms, and in-space manufacturing systems for aerospace and defense customers.

Operations: Redwire generates about US$208.9 million from Space and US$217.4 million from Defense Tech, with roughly US$245.5 million from U.S. clients.

Market Cap: US$2.3b

Redwire plugs directly into the Aerospace and Defense theme through the hardware that keeps satellites oriented, powered, and mission ready. Its uncrewed systems extend that reach into airborne intelligence and surveillance work that governments increasingly rely on.

"Global demand for uncrewed aircraft systems and EO/IR sensors, including programs like the U.S. Army Long Range Reconnaissance and European defense initiatives, aligns with Redwire's combat proven Stalker and Penguin platforms and more than 400 Octopus gimbals delivered. This may translate into higher production volumes and improved gross margins as awards convert from backlog."

One quiet shift in how those defense programs ramp up could materially change the margin profile investors are penciling in.

That margin inflection point is exactly what the full narrative for Redwire unpacks, including how contract mix, capital needs and execution risk could reshape Redwire’s long term profile.

NYSE:RDW Revenue & Expenses Breakdown as at Oct 2026
NYSE:RDW Revenue & Expenses Breakdown as at Oct 2026

Lockheed Martin (LMT)

Overview: Lockheed Martin designs and supports military aircraft, missile and air-defense systems, helicopters and space platforms for U.S. and allied defense customers worldwide.

Operations: Lockheed Martin generates about US$31.2b from Aeronautics, US$16.4b from Missiles and Fire Control, US$19.8b from Rotary and Mission Systems, and US$13.8b from Space, with around US$54.0b from U.S. customers and meaningful orders across Europe, Asia Pacific, the Middle East and other regions.

Market Cap: US$116.3b

Lockheed Martin matters here because its fighter jets and missile defenses are the hardware many governments are relying on to refresh their air fleets and shield their cities, and that need for dependable capacity is exactly what the long-contract aerospace and defense theme is about.

"Lockheed Martin is moving munitions like PAC-3, THAAD, PrSM and JATM onto seven year framework agreements that aim to triple or quadruple production and allow the company to retain a larger share of cost savings from capacity investments such as robotics in Camden, which can support higher future revenue and structurally stronger net margins."

What happens if a single assumption about how smoothly that shift to higher output runs changes the margin story investors are relying on?

That production risk is exactly what the full narrative for Lockheed Martin pulls apart, showing where Lockheed Martin’s capacity buildout could be accelerating returns or quietly masking future pressure.

NYSE:LMT Revenue & Expenses Breakdown as at Oct 2026
NYSE:LMT Revenue & Expenses Breakdown as at Oct 2026

RTX (RTX)

Overview: RTX Corporation supplies aircraft engines, avionics, and defense systems that equip and support commercial airlines and military forces worldwide.

Operations: RTX generates about US$35.0b from Pratt & Whitney, US$31.2b from Raytheon and US$31.2b from Collins Aerospace, with around US$76.8b from the United States.

Market Cap: US$246.7b

RTX ties directly into the Aerospace and Defense theme because its engines, avionics, radars and missiles are built into aircraft and weapon systems that stay in service for decades. Investors are watching how that long-lived hardware footprint translates into dependable earnings.

"RTX’s record backlog of US$289b, supported by a Raytheon rolling 12 month book to bill of 1.77 and US$19.9b of quarterly awards for systems such as Patriot, AMRAAM, AIM 9X and LTAMDS, points to multi year conversion of contracted demand into revenue and segment operating profit that some investors may not yet fully reflect in valuations."

What happens to RTX’s earnings profile if a single assumption about how efficiently that backlog turns into high margin work proves too optimistic?

If that assumption is wrong, the full narrative for RTX shows how RTX’s backlog conversion, margin trajectory and risk profile could be quietly decoupling from what the headline numbers suggest.

NYSE:RTX Earnings & Revenue History as at Oct 2026
NYSE:RTX Earnings & Revenue History as at Oct 2026

Seeking Alternatives Beyond Aerospace?

Fresh ideas keep moving first. Breakout trends, early momentum and under the radar stories do not stay quiet for long, so scan new opportunities before the crowd and act now.

  • Spot cash generative outliers early and track the list of solid balance sheet and fundamentals (25 results) to highlight resilient operators built on strong funding and disciplined capital allocation.
  • Hunt for payout workhorses and use the 7 dividend fortresses to zero in on income focused businesses before their yields get compressed by late buyers.
  • Ride secular tech shifts and sort through the 92 AI infrastructure stocks capturing companies positioned around data centers, chips and power systems while these stories are still building momentum.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.