10 hottest ISA shares, funds and trusts: week ended 9 October 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.

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Top 10 shares in ISAs

Rolls-Royce Holdings (LSE:RR.) jumped seven places to top this list of most-bought stocks in ISAs on the ii platform for the first time in five weeks.

Fellow FTSE 100 stocks BAE Systems (LSE:BA.) and GSK (LSE:GSK) joined the aeroengine maker in the top 10, all attracting bargain hunters following a drop in share prices to multi-month lows and, in the case of GSK, to levels not seen in almost a year.

The trio were part of a sell-off on Thursday that saw the FTSE 100 extend its decline from over 10,600 on Tuesday to as low as 10,367, its worst level since June. Selling was triggered by a rise in oil prices as attacks on shipping in the Strait of Hormuz continued. High bond yields also remain a problem for investors.

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Taylor Wimpey (LSE:TW.) returns to the top 10 from 13th the previous week. It’s also four weeks since the housebuilder last appeared here amidst excitement over the government’s new plan to stimulate the housing market.

Shares started trading without the right to the latest dividend on Thursday, which explains 1.2 pence of the decline. But Taylor Wimpey, which had been trading at almost 99p just a couple of weeks ago in reaction to the government’s Your First Home (YFH) scheme, slumped below 74p on Friday, its lowest since early 2013.

Analysts at Morgan Stanley updated their outlook for the sector, factoring in the potential benefits of YFH. Their new forecasts for the company reflect rising build costs and lower completions, but also a higher multiple on depressed earnings, which means the price target increases by 10p. However, they stick with an ‘underweight’ rating, while a new target of 70p is still less than the current share price.

“Stronger demand would be supportive, but we think the market would want to see evidence of an improving margin trajectory before materially re-rating the shares,” says the broker. Its preferred policy play is Persimmon (LSE:PSN) because of its low average selling price, 36% exposure to first-time buyers and regional mix. It rates the shares as ‘overweight’ and raises its price target by 300p to 1,580p.

Elsewhere, MobilityOne Ltd (LSE:MBO) makes its debut in this list at number four. Having just returned from a three-month suspension on AIM following a delay in filing half-year results, investors got excited about its proposed joint venture with Super Apps.

Shares more than doubled in value to 17p after the Malaysia-focused company, which makes money from mobile phone prepaid airtime reloads and bill payments, confirmed its M1 Malaysia subsidiary will receive about £6.84 million in cash within 14 days plus £3.42 million within 180 days of the merger completion.

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Ceres Power Holdings (LSE:CWR) was last seen here three months ago, and creeps in this time at number 10. There doesn’t appear to be any fresh news, but clearly Ceres, whose shares have traded a sideways range for the past couple of months, remains a popular stock among investors.

After slumping from its post-IPO high above $225 to below $105, shares in Elon Musk’s Space Exploration Technologies Corp Class A (NASDAQ:SPCX) have regained popularity. Shares topped $175 in a week when the company agreed to buy Grain Management’s nationwide 800 megahertz (MHz) portfolio for a rumoured $6-8 billion. Analysts at Morgan Stanley said: “The transaction demonstrates that SpaceX is serious about entering the US mobile market.”

The deal comes ahead of the next SpaceX Starship launch - Flight 15 - in about a month’s time. Morgan Stanley says the flight is “shaping up as SpaceX's biggest test towards Starship reusability since the IPO, with Flight 16 (targeted before year-end) potentially an even bigger one.”

“We believe future AI product releases, Starship progress, and additional neocloud contracts showing continued pricing around $30-50/watt are all upside-skewed catalysts that can push the stock closer to our $300/share price target.”

The six stocks making way for this week’s newbies are Legal & General Group (LSE:LGEN), Tullow Oil (LSE:TLW), NatWest Group (LSE:NWG), Glencore (LSE:GLEN), AstraZeneca (LSE:AZN) and HSBC Holdings (LSE:HSBA).

Top 10 funds and trusts in ISAs

Global growth stalwart Scottish Mortgage Ord (LSE:SMT) has climbed up the rankings in an otherwise pretty consistent fund bestseller list.

The trust moves up five places, returning to the top three. Scottish Mortgage is still sitting on some very strong returns for 2026 and offers a broad form of exposure to the artificial intelligence (AI) trade, among other things.

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However other factors, from the effect of interest rate rises on the portfolio to the ultimate size of its SpaceX position and holding in Anthropic, remain worth monitoring.

It’s otherwise much of the same in our weekly list. Royal London Short Term Money Mkt Y Acc (B8XYYQ8) shows no sign of budging from top spot, while the table is littered with diversified tracker funds such as Vanguard FTSE Global All Cp Idx £ Acc (BD3RZ58) and HSBC FTSE All-World Index C Acc (BMJJJF9).

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The outperforming value play Artemis Global Income I Acc (B5ZX1M7) maintains its place in the list, as does high-yielding renewables trust Greencoat UK Wind (LSE:UKW). UK income stalwart City of London Ord (LSE:CTY) slips to 10th place.

Interestingly we see some bargain hunting at the margins of the list, with battered private equity giant 3i Group Ord (LSE:III) just outside the table in 12th place.

Funds and trusts section written by Dave Baxter, senior fund content specialist at ii.