BAESY vs LMT: Which Is the Better Buy in 2026?

Last updated October 2026

Short answer

LMT is the larger of the two ($127.42B market cap): the incumbent the market prices for continued execution (16.89x forward earnings, beta 0.09). BAESY is the smaller challenger ($77.32B), actually pricier on forward earnings (19.96x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.

BAESY vs LMT: the tie-breaker metrics

Same yardstick, side by side (as of October 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

MetricBAESYLMTWhat it tells you
Market cap$77.32B$127.42BSize. The larger name is the incumbent; the smaller has more room to grow and more to prove.
Forward P/E19.9616.89Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up.
Trailing P/E28.1920.35Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price.
Beta-0.040.09Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through.
Price vs 52-week range51% of range45% of rangeWhere today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why.
Price / book4.8014.48How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price.

Reading it: LMT is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

Before you buy: how BAESY and LMT affect your concentration

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. BAESY and LMT share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined BAESY and LMT exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

What does BAE Systems plc (BAESY) do?

BAE Systems plc is a London-listed defense, aerospace and security company and the largest defense contractor in Europe. It designs and builds a very wide range of military equipment: Typhoon combat aircraft work and a major share of the F-35 program, the Tempest/GCAP next-generation fighter, nuclear-powered submarines including the Astute and Dreadnought classes for the Royal Navy and AUKUS boats for Australia, Type 26 frigates, armored vehicles such as the Bradley and AMPV, artillery and munitions, and a large electronic systems business in the United States covering electronic warfare, flight controls and space hardware. Roughly half of group sales come from the US, through a separately governed subsidiary, BAE Systems Inc., with the UK, Saudi Arabia, Australia and European export markets making up most of the rest. For 2025 the company reported record group sales of ~£30.7bn (IFRS revenue ~£28.3bn), underlying EBIT of ~£3.3bn and underlying EPS of ~75.2p.

Full BAESY guide

What does Lockheed Martin (LMT) do?

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.

Full LMT guide

BAESY vs LMT: how do they differ?

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

  • BAESY drivers: A record backlog and rising European and NATO budgets; Submarines and the AUKUS program.
  • LMT drivers: The F-35 franchise; Rising defense budgets and munitions demand.

Which fits which kind of investor

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Defense revenue depends on government budgets, so any slowdown in the UK's path to higher spending, a reprioritisation of the US budget, or a ceasefire that changes urgency in Europe could affect order intake, and the share price has already shown sensitivity to this, falling about 20% from its March 2026 high. For LMT, lockheed depends overwhelmingly on US and allied defense budgets, so spending cuts, continuing resolutions, shutdowns, or shifting priorities directly threaten revenue.

BAESY or LMT: which should you pick?

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick BAESY if you believe its drivers more; LMT if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the BAESY and LMT guides.

BAESY vs LMT: the full fundamentals

BAESY. The trailing multiple is computed from the second half of 2025 plus the first half of 2026 underlying EPS against a London price of roughly £18 to £19 in early October 2026, so it moves quickly with the share price. Using the raised 2026 guidance of 11% to 13% EPS growth, forward underlying EPS is roughly 83p to 85p, which puts the forward multiple near 22x. Free cash flow was ~£2.2bn in 2025 and ~£1.8bn in the first half of 2026, helped by customer advances, which can reverse as programs are delivered, so cash flow tends to be lumpy year to year.

LMT. At about $545 a share on October 16, 2026, Lockheed trades near 20 times trailing and 17 times forward earnings, about 1.6 times sales, a defense-sector multiple supported by a large backlog, predictable government revenue and free cash flow that funds a growing dividend and buybacks. Trailing net income of about $6.3 billion is already above full-year 2025's $5.0 billion, and analysts expect about $30.42 of EPS for 2026 and $32.73 for 2027. The October 22 third-quarter report (consensus about $7.52 EPS on $20.46 billion revenue) is the next checkpoint, with program charges on fixed-price contracts the main swing factor.

Headline figures (approximate, October 2026): BAESY shows group sales (fy2025) ~£30.7bn (~$40bn); IFRS revenue ~£28.3bn, h1 2026 sales ~£15.8bn, up ~9%, underlying eps (trailing 12 months) ~79p (FY2025 75.2p; H1 2026 38.9p), order backlog (30 june 2026) ~£84.0bn (~$112bn); LMT shows revenue (ttm) ~$77 billion, q2 2026 revenue ~$20.1 billion (up ~10.5% YoY), q2 2026 eps $7.94 vs ~$7.20 est., operating margin (ttm) ~12%.

The bottom line: BAESY vs LMT

BAESY and LMT are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined BAESY and LMT exposure against your real portfolio. It is not an investment adviser.

Wondering how BAESY or LMT fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.

Investing in BAE Systems plc with AI

Connect the broker you already use and ask Walnut's AI how BAESY fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.

FAQ

What is the difference between BAESY and LMT?

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BAE Systems plc is a London-listed defense, aerospace and security company and the largest defense contractor in Europe. Lockheed Martin is the largest defense contractor in the world, generating the vast majority of its revenue from the US government and allied militaries. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.

Is BAESY or LMT the better stock?

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Neither is universally better. LMT is the larger incumbent; BAESY is the smaller challenger and looks pricier on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.

Which is cheaper, BAESY or LMT?

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On forward P/E (as of October 2026), BAESY trades at 19.96x and LMT at 16.89x, so LMT is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.

Should you own both BAESY and LMT?

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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.

What are the risks of BAESY vs LMT?

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BAESY: Defense revenue depends on government budgets, so any slowdown in the UK's path to higher spending, a reprioritisation of the US budget, or a ceasefire that changes urgency in Europe could affect order intake, and the share price has already shown sensitivity to this, falling about 20% from its March 2026 high. Large fixed-price programs such as ships and submarines carry cost overrun risk, and skilled-labor constraints at shipyards are a recurring issue across the industry. Exports to Saudi Arabia and other Gulf customers are exposed to political and licensing decisions and attract reputational scrutiny. For US holders of BAESY there is also currency risk, since earnings are reported in sterling while roughly half of profits are earned in dollars, and the stock trades at a valuation of roughly 22x to 23x trailing earnings that leaves less room for disappointment than in the pre-2022 period when defense stocks traded closer to 12x to 15x. LMT: 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. The balance sheet carries about $20.5 billion of debt against about $3.8 billion of cash (mid-2026), and the shares have swung between roughly $437 and $692 over the past year, so even a defensive name has shown meaningful price risk. Analysts expect EPS of about $30.42 for 2026, a sharp rebound from 2025 when program charges weighed on earnings, which makes the October 22 report a check on whether charges stay contained.

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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell BAESY or LMT; figures are approximate and dated (as of October 2026). Verify current data before investing.