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Highlights

  • FTSE defence leaders BAE Systems, Rolls-Royce, and Babcock International surged between 70% and 138% year-to-date in 2025.
  • Record government defence spending, rising geopolitical tensions, and multi-year order backlogs have fueled the sector’s sharp gains.
  • Investor appetite has intensified, with over $3 billion in ETF inflows, as defence overtakes AI as the UK’s fastest-growing equity sector.

The top FTSE-listed defence stocks that have surged more than 50% in 2025 include BAE Systems, Rolls-Royce Holdings, and Babcock International. Robust global demand, elevated government spending, and persistent geopolitical tensions have powered record highs in the UK’s defence sector. The FTSE All Share Aerospace and Defence index itself is up 71.9% year-to-date, with the leading individual stocks soaring even higher.

Market Environment and Catalysts

Global Defence Boom

Investors have flocked to defence stocks in 2025 as military budgets expand across Europe, the UK, and beyond. Renewed geopolitical tensions—most notably in Eastern Europe and East Asia—have driven demand for aircraft, naval vessels, electronics, and cybersecurity solutions. UK government commitments to higher defence spending and substantial new contracts have directly benefited listed companies.

Investor Sentiment

Recent surveys and fund flow data show defence overtaking AI as the UK’s top growth sector, with ETF inflows topping $3bn in three months. Share price appreciation has vastly outpaced broader market indices, highlighting the sector’s resilience and perceived opportunity for further gains.

Major Gainers: Detailed Profiles

BAE Systems (LSE:BA)

  • Share price gain: 70% YTD (as of 19 September 2025)
  • Highlights: Europe’s largest pure-play defence contractor, renowned for diversified portfolio (land, air, sea, cyber).
  • Financials: Upgraded revenue and profit guidance, order backlog of £75.4 billion ensures multiyear visibility. Q1 2025 revenue up 11% to £14.6 billion.
  • Strategy: Aggressive contract wins, strong balance sheet, regular share buybacks, and dividend hikes.
  • Context: Performance built on multi-country order momentum, especially from UK MoD, US DoD, and European partners.

Rolls-Royce Holdings (LSE:RR)

  • Share price gain: 94% YTD (as of 19 September 2025)
  • Highlights: Leading aerospace engine manufacturer, pivoting to defence and next-gen civil aerospace.
  • Financials: Record revenue upgrades, net cash position, restored dividends, and aggressive growth in defence order book.
  • Strategy: Investments in propulsion, nuclear SMRs, and AI integration. Improved operational efficiency following prior years’ turnaround.
  • Context: Surged on renewed government contracts, civil and military aviation sector resurgence, and bullish sentiment on future technology.

Babcock International (LSE:BAB)

  • Share price gain: 138.20% YTD (as of 19 September 2025)
  • Highlights: Specialist in marine, nuclear, aviation, and land defence platforms. UK government’s preferred supplier for shipbuilding.
  • Financials: FY2025 results: Revenue up 10% to £4.83 billion, operating profit up 34% to £362.9 million. £10.4 billion contract backlog and new share buyback program.
  • Strategy: International expansion, deep relationships with NATO, and strong pipeline in nuclear defence.
  • Context: Benefits from increased naval investment and elevated global demand for defence services.

Sector Performance and Outlook

Defence funds and ETFs have become the most popular equity vehicles of the year, drawing both institutional and retail capital as investors look for growth, dividends, and protection against market shocks.

  • Order Backlogs: BAE Systems (£75.4bn), Babcock (£10.4bn) underscore multi-year visibility and revenue certainty for sector leaders.
  • Government Support: Clear policy moves toward higher defence budgets provide a tailwind, with the UK, Germany, and France in particular raising procurement.
  • Innovation: Defence stocks increasingly participate in artificial intelligence, cyber, and advanced propulsion innovation, creating structural drivers for long-term growth.

Risks and Considerations

  • Valuation Stretches: Sector PE ratios reflect historic optimism; new buys may be at risk if profits fall short.
  • Geopolitical Exposure: Sudden de-escalations or regulatory shifts could slow order growth.
  • Cycle Sensitivity: Performance tied to government priorities and the economic cycle.
  • Competition: Global rivals (e.g., US, German, French defence majors) remain fierce.

In 2025, leading FTSE defence stocks—BAE Systems, Rolls-Royce Holdings, and Babcock International—have delivered over 50% returns, driven by rapid order growth, improved profitability, and much higher investor confidence in the UK military-industrial sector. Their operational strength, government alignment, and innovation focus suggest continued relevance, although elevated valuations call for careful review before new investment.