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Recent share performance and business scale

BAE Systems (LSE:BA.) shares have seen mixed recent moves, with a 1 day return of about a 3% decline and a past week return around a 9% decline, alongside a past 3 months return near 22%.

The group reports annual revenue of about £28.3b and net income of roughly £2.1b, with operations spread across segments such as Electronic Systems, Air, Maritime, Platforms & Services, and Cyber & Intelligence.

See our latest analysis for BAE Systems.

Despite the recent 9.3% 7 day share price return decline and softer 30 day performance, the 90 day share price return of 22.3% alongside a 1 year total shareholder return of 34.6% suggests momentum has largely been positive over a longer horizon.

If BAE Systems has put defence on your radar, it could be a good moment to widen your search and check out 88 nuclear energy infrastructure stocks

With BAE Systems trading around £20.93 and some valuation models suggesting a single digit discount, the key question is simple: is this still an underappreciated defence giant, or has the market already priced in future growth?

Most Popular Narrative: 9% Undervalued

The most followed narrative puts BAE Systems’ fair value at about £22.90 per share versus a last close of £20.93, framing the share price as slightly behind that estimate.

The company’s order backlog has surged to £75 billion, with a pipeline of new opportunities partly fueled by higher defense spending commitments across NATO, the US, UK, Europe, and Indo-Pacific (e.g., UK targeting 2.5% of GDP on defense by 2035, Japan doubling spending by 2027). This provides visibility on future revenues and supports topline growth for multiple years.

Read the complete narrative.

Want to see what is sitting behind that backlog assumption, and how it feeds into future sales, margins and valuation multiples? The full narrative lays out the step by step earnings and revenue path that supports this fair value estimate, plus how long those conditions are expected to hold.

Result: Fair Value of £22.90 (UNDERVALUED)

Have a read of the narrative in full and understand what’s behind the forecasts.

However, this narrative can be challenged if ESG pushback reduces investor appetite, or if major government contracts are cut, delayed, or fail to convert backlog into revenue.

Find out about the key risks to this BAE Systems narrative.

Next Steps

After all this, do you feel the optimism is justified or overdone? Take a closer look at what the market is rewarding and check the 3 key rewards

Looking for more investment ideas?

If you stop with just one defence stock on your radar, you could miss other opportunities that fit your goals, risk comfort and income needs.

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.

Companies discussed in this article include BA.L.

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