Most popular funds in an ISA
INVESTMENTS
An Individual Savings Account (ISA) protects the returns on your investments from income tax and capital gains tax.
The value of investments can fall as well as rise so you may get back less than you invest. Tax rules can change and their effects vary depending on your individual circumstances. Please check the costs involved before transferring.
While you can hold a wide range of asset classes in an ISA, funds help diversify your portfolio as your money is spread across different investments.
When it comes to choosing the funds for your ISA, you may be interested to see what other customers have been buying to help with investment ideas.
The details of our most popular funds are updated monthly, using the number of purchase deals placed by our Smart Investor customers during the calendar month.
You may be interested to see what other customers have done, however this may have limited value in making a decision on the investments that are most suitable for you. This is not a personal recommendation and should not be seen as independent advice.
You should remember the investment goals you have set, and consider if each fund you like will contribute to building a diversified and balanced portfolio.
To find out more about any of these investments, please click on the name of the fund you are interested in below, and it will take you directly the fund factsheet.
The fund factsheet contains important information you should understand, including the risks relevant to the investment, and gives you access to all the key documents related to the fund.
Top fund purchases in ISAs: August 2025
| Rank | Name | Sector | Sedol |
|---|---|---|---|
| 1 | Barclays Global Markets Adventurous R Acc GBP | Flexible Investment | B4YPY06 |
| 2 | Barclays Global Markets Growth R Acc GBP | Mixed Investment 40-85% Shares | B4ZFH28 |
| 3 | Barclays Global Markets Balanced R Acc GBP | Mixed Investment 20-60% Shares | B4Z0MR3 |
| 4 | UBS S&P 500 Index C Acc | North America | BMN91T3 |
| 5 | Barclays Global Markets Cautious R Acc GBP | Mixed Investment 20-60% Shares | B510V99 |
| 6 | Fidelity Index World P | Global | BJS8SJ3 |
| 7 | L&G Gbl Technology Idx Trst I Acc | Technology & Telecommunications | B0CNH16 |
| 8 | HSBC FTSE All World Index C Acc | Global | BMJJJF9 |
| 9 | Barclays Global Markets Defensive R Acc GBP | Mixed Investment 0-35% Shares | B55LZH4 |
| 10 | HSBC FTSE 100 Index C Acc | UK All Companies | B80QFR5 |
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The value of investments can fall as well as rise so you may get back less than you invest. Tax rules can change and their effects vary depending on your individual circumstances. Please check the costs involved before transferring.
Investment Account
Low cost, flexible investing with no upper limit. Choose from a range of bonds, gilts, funds, shares and more. You can also withdraw your cash at any time.
Investment ISA
Easy, tax-efficient, low-cost investing
Grow your money in a tax-efficient ISA. Invest up to £20,000 per year with a simple low annual charge and dedicated customer support.
Get started in minutes and secure your annual allowance with a debit card, a monthly Direct Debit or by moving money from your Barclays account. There’s no charge to hold cash if you need some time to decide where to invest.
You can also transfer an existing ISA(1) to benefit from our award-winning ISA service.(2)
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Important information
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