10 hottest ISA shares, funds and trusts: week ended 25 September 2026

We look at the investments ii customers have been buying within their ISAs during the previous week. The data includes only real-time trades, not regular investing instructions, and combines the use of both existing funds and new money.

• Invest with ii: Open a Stocks & Shares ISA | ISA Investment Ideas | Transfer a Stocks & Shares ISA

Top 10 shares in ISAs

Glencore (LSE:GLEN)’s stay at the top lasted just one week, replaced by 80 Mile (LSE:80M), a small AIM-listed mining company with multiple projects in Greenland and Finland.

It’s the first time 80 Mile has appeared in this list of most-bought stocks in ISAs on the ii platform, interest triggered by news about a security deal between the US, Greenland and Denmark. President Trump has made no secret of his desire to annex Greenland, and talk of a takeover was reignited again in January when Trump ousted Nicolás Maduro as president of Venezuela.

• Our Services: SIPP Account | Stocks & Shares ISA | See all Investment Accounts

But Trump said at the end of the previous week that a deal was imminent, and then last week signed a trilateral security and defence agreement on the sidelines of the UN General Assembly in New York. With a resolution around security removing an overhang for the shares, the price surged 121% for the week, taking gains for the year to almost 200%. A peak of 1.795p early on Friday meant the shares had rallied over 150% from the previous week’s low at around 0.7p.

“We believe the strengthening relationship between Greenland, Denmark and the United States represents an important positive development for responsible resource investment,” said 80 Mile’s executive director Roderick McIllree. “Greater geopolitical stability, closer defence cooperation and a clearer long-term strategic framework should enhance investor confidence and support the development of energy as well as critical mineral supply chains.”

Earlier in the month, terms of an all-share acquisition of 80 Mile by Greenland Energy were revealed. 80 Mile shareholders receive 0.01108 new Greenland Energy shares for each 80 Mile share, valuing the shares at 1.1p and the company at £61.48 million. But Greenland Energy shares more than doubled on news of the Trump deal which was reflected in 80 Mile's share price.

• Insider: directors pump cash into this ‘exciting growth story’
• AIM’s best companies of 2026: shortlist revealed
• Stockwatch: why it’s time to pay serious attention to this share

Elsewhere, buyers picked up Standard Life (LSE:SDLF) at a two-month low, the shares cheapened after going ex-dividend Thursday. Buyers will now not receive the 28.05p interim dividend, a 2.6% increase on the year before.

BT Group (LSE:BT.A) suffered a brief dip midweek, coinciding with an announcement from Airtel Africa that it’s Airtel Money business would IPO in London with a valuation around £6 billion. Talk is that investors were hoping for more, which negatively affected other telecoms plays like BT and Vodafone.

BP (LSE:BP.) tracked the oil price lower early in the week as hopes grew that Iran and the US can agree a deal to reopen the Strait of Hormuz if America lifts its blockade on Iranian ports. Investors picked up cheaper BP shares and also reacted positively to a JP Morgan upgrade from neutral to overweight with a price target of 675p.

• Shares for the future: hidden risks at this stock prey on my mind
• Anthropic IPO: what UK investors need to know

Raspberry Pi Holdings (LSE:RPI) shares surged over 20% to their highest in a couple of months after the low-cost, accessible computing firm announced record results that triggered earnings upgrades. The knockout numbers are attributed to a decision last year to build significant strategic memory inventory. This meant the FTSE 250 company could maintain product availability when smaller competitors struggled due to supply chain disruption.

US bitcoin owner Strategy is the final new entry in this week’s list, creeping in at number 10. In the week to last Tuesday, shares had rallied as much as 40% to their highest in over four months. They’re still down almost 50% in the past year, but there certainly seems a lot more optimism around the bitcoin price of late.

The six stocks making way for this week’s newbies are Barclays (LSE:BARC), Marks & Spencer Group (LSE:MKS), Greatland Resources Ltd (LSE:GGP), IQE (LSE:IQE), Orosur Mining Inc (LSE:OMI) and Taylor Wimpey (LSE:TW.). 

Top 10 funds and trusts in ISAs

L&G Global Technology Index I Acc (B0CNH16) and Vanguard LifeStrategy 100% Equity A Acc (B41XG30) return to our bestseller list, with City of London Ord (LSE:CTY) and Fidelity Index World P Acc (BJS8SJ3) departing.

A big question mark the global stock market is grappling with is whether the scale of capital expenditure on artificial intelligence (AI) will generate the future earnings growth and profits that investors are expecting.

• Portfolio Dilemma: what yield should I target?
• This sector is booming - but have investors missed the boat?

Many investors, however, remain bullish, with L&G Global Technology Index Trust offering a route to dedicated exposure to the sector. One thing to be mindful of is that this tracker has chunky positions in NVIDIA Corp (NASDAQ:NVDA), Apple Inc (NASDAQ:AAPL) and Microsoft Corp (NASDAQ:MSFT), which collectively account for over a third of its exposure.

Another of the options for the sector is Polar Capital Technology Ord (LSE:PCT) trust. Ben Rogoff, who has been at the helm since 2006, adopts a “benchmark” aware approach. This means that it tends not to stray too far from what its technology stocks benchmark looks like and makes small overweight and underweight positions to try and outperform it. Its top holding Nvidia accounts for 10.1% of the portfolio, followed by weightings of 6.0%, 5.7%, 5.5|% and 3.4% for Alphabet Inc Class A (NASDAQ:GOOGL), Microsoft, Taiwan Semiconductor Manufacturing Co Ltd ADR (NYSE:TSM) and Advanced Micro Devices Inc (NASDAQ:AMD).

Global funds also provide plenty of exposure to technology and AI given that the Magnificent Seven account for over 20% of the index. Vanguard LifeStrategy 100% Equity’s return to the top 10 sees it join other global strategies: Vanguard FTSE Global All Cp Idx £ Acc (BD3RZ58), Artemis Global Income I Acc (B5ZX1M7), HSBC FTSE All-World Index C Acc (BMJJJF9), Scottish Mortgage Ord (LSE:SMT) and Vanguard LifeStrategy 80% Equity A Acc (B4PQW15).

• Fresh activist clash looms for Baillie Gifford US Growth trust
• How the top UK value funds differ
• Sign up to our free newsletter for investment ideas, latest news and award-winning analysis

Unchanged at the top is Royal London Short Term Money Mkt Y Acc (B8XYYQ8). Funds in this sector own a diversified basket of safe bonds that are due to mature soon, normally within just a couple of months, meaning that investors can earn an income on their cash with minimal risk. The income generated by the funds is usually around the level of UK interest rates, currently 3.75%.

Also in the top 10 is Greencoat UK Wind (LSE:UKW), which is a popular name from a troubled sector. Its shares have delivered a solid showing so far in 2026, up nearly 15%, in part thanks to renewables getting more of the limelight amid the conflict in the Middle East. It still stands out in some areas that bargain hunters and income investors value, from a 16% share price discount to net asset value (NAV) to a share price dividend yield of 9.5%.

Funds and trusts section written by Kyle Caldwell, Funds and Investment Education Editor at ii.