Top 10 best-selling ISA and SIPP funds in July

Summer may be in full swing, but the markets haven't been taking a holiday. Volatile technology stocks and geopolitical uncertainty have kept people on their toes.

But which funds have personal investors been buying?

Read on for the top 10 ISA and SIPP funds in July, or click below for the best-selling investment trusts and exchange traded funds (ETFs).

• Read: Top 10 best-selling investment trusts in July
• Read: Top 10 best-selling ETFs in July

Tom’s picks

At the start of the year, Fidelity’s investment director Tom Stevenson published three fund picks for 2026: Dodge & Cox Worldwide - Global Stock, Fidelity Special Situations, and Lazard Emerging Markets. All three have proved very popular with personal investors.

• Read: Tom Stevenson's fund picks for 2026

The funds offer different ways to diversify your portfolio away from America’s Big Tech scene. Dodge & Cox is a value-focused fund with a wide range of holdings. Only half the portfolio is invested in the US - well below a neutral weighting - while Europe, the UK and emerging markets are over-represented.

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The fund doesn’t shun technology entirely. Its biggest stake is in Taiwan Semiconductor Manufacturing Company (TSMC), the world’s biggest chip maker. However, Alphabet and Microsoft are the only ‘Magnificent Seven’ stocks to appear in the fund’s top holdings, as of June.

Its portfolio is fairly concentrated with 95 holdings, and it is at the riskier end of the spectrum. As such, it is more suitable for investors with a long time-horizon of ten years or more.

Fidelity Special Situations also hunts for cheap stocks, but it has its eyes squarely on the UK market. Fund manager Alex Wright has years of experience seeking out London-listed companies going through tough times. The portfolio is skewed towards medium- and smaller-sized businesses, but big names like Lloyds and Aviva feature among its top holdings too. It currently leans towards industrial stocks, and the consumer discretionary sector.

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Last up: Lazard. Lazard Emerging Markets mainly invests in Asia and Latin America and looks for companies that are cheaper than the market but with better fundamental prospects. It aims to outperform the MSCI Emerging Markets Index with less volatility.

Crucially, the fund is wary of some of the Asian mega-caps, which have been extremely volatile of late. It doesn’t currently hold Samsung, for example, and underweights TSMC and SK Hynix. Fund manager James Donald has expressed nervousness about how the artificial intelligence story is unfolding.

'Ready-made' portfolios 

The Fidelity Multi Asset Allocator Growth Fund is a hit with SIPP customers this year.

This multi-asset fund forms the basis of Fidelity’s Retirement Builder and is a fuss-free investment option for customers who want stable growth and a diversified portfolio.

The fund is split roughly 60/40 between higher risk assets like shares and lower risk assets like bonds. By spreading their money across different asset classes, investors are hoping for less volatility and smoother returns over the long term. Historically, stocks and bonds have moved in opposite directions, although this hasn’t always played out.

• Read more: Kick-start your pension with this investment idea

Retirement Builder is designed to be medium-risk and low-cost, and suits customers who want to invest in their pension but don’t know where to get started.

Meanwhile, the Fidelity Multi Asset Open Growth Fund was a hit with ISA customers in July. This is another ready-made option, but it is more growth focused than its retirement cousin. Almost 70% of the portfolio is in equities, about 15% is in bonds, and another 15% is in alternative assets such as gold and commodities. The fund targets an average annual return of 5.5% after any charges, over a typical market cycle of five to seven years. Please remember past performance is not a reliable indicator of future returns.

Biotech boom

A new name cropped up on the best-sellers list this month: the Polar Capital Biotechnology Fund. This fund invests in cutting-edge medical innovation, whether that’s companies that make new drugs, healthcare devices, or research tools.

It has a concentrated portfolio of between 40 and 60 companies and is skewed towards the US. The high conviction stock-picking approach has worked very well this year, with Polar Capital Biotechnology surging ahead of its index. The biotech backdrop has also brightened considerably after a tough few years, as big pharma groups hoover up smaller biotech firms to improve their drug pipelines.

Global trackers

Global tracker funds are also popular this year, with Fidelity Index World Fund, Vanguard FTSE Global All Cap Index and HSBC FTSE All World Index all making it onto the best-sellers list.

These tracker funds let you invest in companies around the world for a relatively low fee. They also offer plenty of exposure to the tech sector, given that the ‘Magnificent 7’ represent over a fifth of the global market - and this doesn’t account for the newly listed tech giant SpaceX.

It is easy to think that all tracker funds are the same, but they’re not. The Vanguard fund is more diversified than many, offering exposure to developed and emerging markets. Its top 10 holdings represent just over a fifth of the total portfolio. In contrast, the Fidelity fund focuses exclusively on developed markets, and its top 10 holdings represent 26% of the total portfolio. The HSBC fund sits somewhere in between.

• Read: Which global index fund is best for you?

A big part of the appeal of all these funds, however, is their price. They allow you to ride the ups and downs of the global market for an ongoing charge of between 0.12% and 0.23%.

Cash funds

Investors steered away from money market funds in early 2026 but have since come back to them. This may be due to worries about stock market valuations. Enthusiasm for AI is booming, and some fear we are in bubble territory. 

The trajectory of interest rates has also changed since the Middle East conflict. At the start of 2026, people thought the Bank of England would cut rates this year. However, rates were held again in July and traders now expect a hike within the next six months. The return you can get from low-risk money market funds is looking more attractive, therefore.

• Read: Where next for interest rates?

Money market funds - also known as cash funds - act a bit like variable-rate savings accounts. They are very low risk and aim to track UK interest rates. They do this by investing your money in things like government debt and bonds from reputable companies. Savers’ money is pooled with other investors and used to purchase these assets in the pursuit of growth.

The Royal London Short Term Money Market Fund is proving a favourite this year, as is the Fidelity Cash Fund and WS Keyridge Sterling Liquidity. They have ongoing charges of 0.1%, 0.15% and 0.15% respectively. 

Income hunters

Personal investors are on the hunt for income too, with Fidelity Global Dividend Fund proving very popular.

Fidelity Global Dividend Fund is an actively managed fund that targets companies with healthy yields underpinned by rising income. The portfolio invests across a variety of sectors and geographies, offering a good level of diversification (the US represents less than a quarter of the portfolio). It also aims to deliver less volatility than the wider market, which may be attractive in today’s unpredictable world.

After a long time in the charts, Artemis Global Income Fund fell out of the best-sellers list in July, having lost a bit of momentum. 

Best-selling ISA funds in July

1. Fidelity Index World Fund
2. Vanguard FTSE Global All Cap Index Fund
3. HSBC FTSE All World Index Fund
4. Royal London Short Term Money Market Fund
5. Lazard Emerging Markets Fund
6. Dodge & Cox Worldwide - Global Stock Fund
7. Fidelity Global Dividend Fund
8. Polar Capital Biotechnology Fund
9. WS Keyridge Sterling Liquidity Fund
10. Fidelity Multi Asset Open Growth Fund

Source: Fidelity International. Net ISA sales 1 July to 31 July 2026 for Personal Investors only.

• Open a Fidelity Stocks and Shares ISA

Best-selling SIPP funds in July

1. Royal London Short Term Money Market Fund
2. Fidelity Cash Fund
3. Fidelity Multi Asset Allocator Growth Fund
4. HSBC FTSE All World Index Fund
5. Fidelity Multi Asset Allocator Growth Fund
6. Vanguard FTSE Global All Cap Index Fund
7. Fidelity Index World Fund
8. Fidelity Special Situations Fund
9. Fidelity Global Financial Services Fund
10. Lazard Emerging Markets Fund

Source: Fidelity International. Net SIPP sales 1 July to 31 July 2026 for Personal Investors only.

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Important information - investors should note that the views expressed may no longer be current and may have already been acted upon. Before investing into a fund, please read the relevant key information document which contains important information about the fund. Eligibility to invest in a SIPP or ISA and tax treatment depends on personal circumstances and all tax rules may change in the future. Withdrawals from a SIPP will not normally be possible until you reach age 55 (57 from 2028). Overseas investments will be affected by movements in currency exchange rates. Investments in emerging markets can be more volatile than other more developed markets. Reference to specific securities should not be construed as a recommendation to buy or sell these securities and is included for the purposes of illustration only. There is a risk that the issuers of bonds may not be able to repay the money they have borrowed or make interest payments. When interest rates rise, bonds may fall in value. Rising interest rates may cause the value of your investment to fall. An investment in a money market fund is different from an investment in deposits, as the principal invested in an money market fund is capable of fluctuation. Fidelity’s money market funds do not rely on external support for guaranteeing the liquidity of the money market funds or stabilising the NAV per unit or share. An investment in a money market fund is not guaranteed. This information is not a personal recommendation for any particular investment. If you are unsure about the suitability of an investment you should speak to one of Fidelity’s advisers or an authorised financial adviser of your choice.