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The Best Defence ETFs for UK Investors in 2026
Ruby Layram
19th Oct 2026
Markets have had a wobbly few days. Global chip stocks just had a rough week, and the FTSE 100 recently posted its strongest week in six months as investors hunted for steadier, “defensive” corners of the market. If the headlines have you wondering where the calmer options are, you are in the right place.
In this guide you will learn what a defensive ETF actually is, five examples UK beginners can research, and a simple way to decide whether one belongs in your portfolio. If you are brand new to all this, our guide to the best investments for beginners in the UK is a good place to start. Easy peasy, no jargon required.
* Some of the links in this article are affiliate or partner links. If you choose to purchase through them, MoneyMagpie may receive a commission at no additional cost to you. We only recommend products and services we believe offer value to our readers, and our editorial content is always produced independently.
What is a defensive ETF?
An ETF (exchange-traded fund) is a basket of investments, such as shares or bonds, that you buy in one go and that trades on the stock market like a single share. It works in a similar way to the funds in our beginner’s guide to index funds, but you buy and sell it through a platform during market hours. A defensive ETF focuses on areas that tend to hold up better when markets are shaky, for example everyday-essentials companies, healthcare, UK government bonds, or shares picked because they have swung around less than the wider market.
“Defensive” does not mean “safe”. Defensive funds can still fall, and they can lag behind when markets are racing ahead. Think of them as a seatbelt, not a force field.
What to Know Before You Buy a Defence ETF
Before diving into the list, a quick jargon-buster and a word of caution:
OCF (Ongoing Charges Figure): the annual fee a fund charges you, shown as a percentage. A 0.4% OCF means you pay £4 a year for every £1,000 invested.
Concentration risk: defence ETFs are a “thematic” or sector fund, meaning they’re concentrated in one industry rather than spread across the whole market. That can mean bigger gains when the theme is in favour – but bigger falls when it isn’t.
Ethical considerations: defence isn’t a sector everyone wants in their portfolio. Some UK platforms exclude controversial weapons systems from their ethical or ESG fund ranges, so if this matters to you, check a fund’s holdings and screening policy before you invest.
The 5 best defensive ETFs to research now
Figures below come from each fund provider’s own pages and are dated mid-October 2026. Fees and holdings change, so check the latest factsheet before you buy.
1. iShares Core FTSE 100 UCITS ETF (ISF)
What it is: a simple tracker of the UK’s 100 biggest listed companies, with an ongoing charge of 0.07% a year and 101 holdings.
Why it matters now: the FTSE 100 leans on big, established, dividend-paying firms. The largest sectors are financials (25.91%), consumer staples (14.16%) and industrials (13.52%), and the fund pays out quarterly.
Key risk: it is concentrated in one country, so UK-specific bad news hits it hard.
2. iShares MSCI World Minimum Volatility UCITS ETF (MVOL)
What it is: a global fund of around 297 developed-market companies picked because they have historically been less jumpy than the wider market, with an ongoing charge of 0.30%.
Why it matters now: it is built for choppy conditions.
Key risk: it is not a tech-free zone. Information technology is still its biggest sector at 24.72%, followed by healthcare (14.34%) and financials (14.01%), so a sharp tech slump would still sting. The share class on iShares’ page is priced in US dollars, so currency swings matter too.
3. iShares Core UK Gilts UCITS ETF (IGLT)
What it is: a bond fund holding 71 UK government bonds (called gilts), with an ongoing charge of 0.07%.
Why it matters now: gilts are loans to the UK government, so they behave very differently from shares. The fund showed a trailing 12-month distribution yield of 4.52%, paid twice a year.
Key risk: bond prices fall when interest rates rise. Its effective duration is 7.01, a measure of rate sensitivity, so a rise in rates could push the price down noticeably. Past yield is not a promise of future income.
4. iShares S&P 500 Consumer Staples Sector UCITS ETF (IUCS)
What it is: 34 US companies that sell the stuff people buy whatever the economy is doing, such as groceries, drinks and household products, with an ongoing charge of 0.15%.
Why it matters now: its biggest weights are in staples retail (34.14%), soft drinks (20.26%) and household products (16.04%), which are not what the AI selloff is about.
Key risk: it holds only a few companies, tobacco makes up 13.96%, and US assets mean exchange-rate risk for a pound-based investor.
5. iShares S&P 500 Health Care Sector UCITS ETF (IUHC)
What it is: 61 US healthcare companies, with an ongoing charge of 0.15%. Pharmaceuticals are 36.01% and biotech is 19.91%.
Why it matters now: people need medicine in good times and bad, so healthcare is a classic defensive sector.
Key risk: it is a single-sector bet, and regulation or drug-pricing changes can hit the whole group at once.
How to choose between them
Ask yourself three simple questions. First, how long until you need the money? If it is under five years, shares of any kind can be a bumpy ride. Second, do you already own a global tracker? If so, you may already hold plenty of the sectors above, and adding more of the same may not diversify you. Our guide on how to choose an index fund shows what to check. Third, what are you actually worried about? Falling share prices points towards bonds; a single-sector slump points towards spreading across sectors.
Where to buy defensive ETFs in the UK
You need an investment platform to buy ETFs. Compare fees, ISA options and the range of funds in our best investment platforms in the UK compared guide. If you want your gains and income shielded from UK tax, check our round-up of the best Stocks and Shares ISAs too. Under HMRC rules, you can put up to £20,000 a year into ISAs, as the official GOV.UK ISA guidance explains, and MoneyHelper’s guide to Stocks and Shares ISAs is a handy, impartial explainer.
What to Do Next
- Decide how much thematic exposure you actually want. As a rough guide, many beginner investors keep thematic or sector bets to a small slice (for example 5-10%) of a wider, diversified portfolio.
- Check the fund’s factsheet on the platform you use – look at the OCF, top 10 holdings, and geographic split before buying.
- Consider holding it inside a Stocks and Shares ISA so any gains are free from UK Capital Gains Tax.
- Start small and be patient. You don’t need to invest a lump sum in one go – regular monthly investing can smooth out some of the ups and downs.
- Review your portfolio every few months to check the theme still fits your goals and risk appetite.
Risk Disclaimer
This article is for general information and education only – it isn’t regulated financial advice, and MoneyMagpie doesn’t recommend specific investments. The value of investments can go down as well as up, and you could get back less than you put in. Thematic and sector funds like defence ETFs can be more volatile than diversified, whole-market funds. Always do your own research and consider speaking to a regulated financial adviser before investing.
* Some of the links in this article are affiliate or partner links. If you choose to purchase through them, MoneyMagpie may receive a commission at no additional cost to you. We only recommend products and services we believe offer value to our readers, and our editorial content is always produced independently.
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