Defence stocks: top UK defence stocks, ETFs and trading guide
Defence stocks have attracted increased market attention in recent years due to rising geopolitical tensions, higher military spending and renewed focus on national security across Europe and globally.
This guide explains how defence stocks work, highlights some of the top UK defence companies to watch and explores the risks and themes influencing the sector.
What are defence stocks and how do they work?
Defence stocks are shares in companies involved in military equipment, aerospace, cybersecurity, engineering and defence technology.
These businesses may generate revenue from:
Government defence contracts
Aerospace manufacturing
Weapons systems and military equipment
Defence software and cybersecurity
Naval and aviation technologies
Many defence companies operate internationally and depend heavily on government spending cycles.
Key characteristics of defence stocks traders should know
Defence stocks are often influenced by a combination of political, economic and sector-specific factors.
Common characteristics include:
Long-term government contracts
Exposure to geopolitical developments
Sensitivity to defence spending budgets
High barriers to entry due to regulation and technology requirements
Large defence companies may also generate revenue from civil aerospace and engineering operations.
Why are defence stocks rising in the UK?
Interest in defence stocks has increased alongside changes in global security priorities and increased military spending commitments.
How government spending and geopolitics drive defence stocks
Governments across NATO countries have increased defence spending targets in response to geopolitical instability and security concerns.
This has supported investor and trader interest in companies linked to:
Aerospace manufacturing
Defence infrastructure
Military technology
Cybersecurity and intelligence systems
However, defence spending and procurement cycles can change over time depending on economic and political conditions.
Why traders are attracted to defence stocks
Traders often monitor defence stocks because the sector can experience strong momentum during periods of geopolitical uncertainty.
Some reasons include:
Exposure to government spending trends
Long-term contract visibility
Interest in aerospace and technology innovation
Potential volatility during geopolitical events
Defence stocks can still experience significant price swings and are not immune to wider market downturns.
Top UK defence stocks to watch in 2026
The companies below are among the most widely followed defence-related shares in the UK market.
BAE Systems (BA): defence manufacturing and government contracts
BAE Systems is one of the UK?s largest defence contractors, with exposure to military aircraft, naval systems and cybersecurity.
Key themes: defence spending and military contracts
Potential strengths: scale and global government relationships
Risks: political risk and procurement delays
Rolls-Royce Holdings (RR): aerospace, defence and engineering exposure
Rolls-Royce operates across civil aerospace, defence and power systems.
Key themes: aerospace recovery and defence demand
Potential strengths: engineering expertise and defence contracts
Risks: economic conditions and aerospace cyclicality
QinetiQ Group (QQ): defence technology and innovation
QinetiQ focuses on defence research, testing and technology services.
Key themes: defence technology and innovation
Potential strengths: specialist expertise and long-term contracts
Risks: contract concentration and public spending changes
Chemring Group (CHG): defence technology and countermeasures
Chemring develops defence and security technologies, including countermeasures and sensors.
Key themes: defence electronics and security systems
Potential strengths: niche defence positioning
Risks: contract volatility and sector competition
Babcock International (BAB): defence engineering and support services
Babcock provides engineering and support services across defence and infrastructure sectors.
Key themes: naval support and defence infrastructure
Potential strengths: long-term contracts and government relationships
Risks: operational execution and margin pressure
Defence ETFs and broader sector exposure
Some traders may prefer diversified exposure to the defence sector through exchange traded funds (ETFs).
Examples include:
iShares US Aerospace & Defence ETF
SPDR S&P Aerospace & Defence ETF
ETFs provide exposure to multiple companies through a single position, although sector-wide risks still apply.
Risks of trading defence stocks
Defence stocks can be affected by several sector-specific and macroeconomic risks.
Key risks include:
Changes in government defence spending
Geopolitical developments
Supply chain disruption
Regulatory and political scrutiny
Budget pressures and contract delays
Share prices may also be affected by wider equity market conditions.
How to trade defence stocks
There are several ways traders can gain exposure to defence-related companies.
Share trading
Trading individual shares provides direct exposure to specific defence companies.
Contracts for difference (CFDs)
CFDs allow traders to speculate on share price movements without owning the underlying asset.
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage.
ETFs and thematic exposure
Sector-focused ETFs can provide broader exposure across aerospace and defence companies.
Key takeaways
Defence stocks are closely linked to government spending and geopolitical developments
The sector includes aerospace, engineering, cybersecurity and military technology businesses
Defence shares can experience increased volatility during periods of geopolitical tension
Risk management remains important when trading sector-focused shares
The performance of defence stocks is primarily driven by government military spending, which directly affects their profits. War or conflicts may increase the demand for a defence company’s products, which may have a short-term or long-term effect on the company’s profitability and stock price. The election of certain politicians who may be more inclined to increase or decrease military and defence spending may also impact these types of stocks.
Cybersecurity stocks may be considered defence stocks if their primary customer is the government, and/or the company’s objective is to protect the nation from cyber security threats, and it therefore provides military or law enforcement with its applications. See some cybersecurity stocks to watch.
There is no specific P/E that is good for all defence stocks; P/E ratios in the defence industry vary between about 5 and 100. The higher growth expectations for a company, typically the higher the P/E it will trade at. If a stock has a really low P/E, below 10, it may have limited growth prospects or it may be a bargain. Read more about how to calculate price-earnings ratios.
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