Matt West is investing for his three younger kids in order that they’ll have cash to make use of as home deposits once they’re older. He tops up their junior Isas, which he holds on platform Hargreaves Lansdown, with common month-to-month direct debits, plus any cash the youngsters get for Christmas.
“I’ve tried to take a look at investments that will probably be there endlessly and be sustainable,” says the 38-year-old Londoner.
There’s actually a theme operating via his choices: he’s chosen the BlackRock World Expertise Fund, the First Belief International Cloud Computing ETF and the Baillie Gifford American fund, which targets US tech giants.
“Expertise underpins every part,” he says.
However, whereas concentrating on US and tech shares has served traders like West properly till now, advisers warn that this method appears riskier for 2025 and past.
“The most important funding pattern of the previous few years could be merely described in three steps: stick your cash in a worldwide tracker fund, go away it there, watch the bull market in US know-how shares develop your wealth,” says Laith Khalaf, head of funding evaluation at AJ Bell. However how lengthy can that proceed?

As of about six weeks in the past, the cash was nonetheless flowing to all the standard locations. Kate Marshall, lead funding analyst at Hargreaves Lansdown, says the most well-liked funds and funding trusts held by shoppers in January had been concentrated in three key areas: world, US and know-how firms.
“It’s comprehensible why,” she says. “Many [of these] firms, significantly throughout the US and tech sectors, have gone from power to power.”
However the social gathering might already be over for US shares. Vanguard expects annualised returns of round 3-5 per cent for US shares for the following decade, and seven.5-9.5 per cent for developed markets excluding the US. This compares with an anticipated annual return of round 4.5-5.5 per cent over the identical interval for world bonds.
“It’s tough to know what to do right here,” says Khalaf, “as a result of if the S&P 500 continues to outperform, you’ll fall behind when you dial down publicity. On the identical time many traders could have some huge cash tied up in a comparatively small variety of massive US tech firms, which opens them as much as the potential for an outsized impact on their portfolio if these firms take a tumble.”
For passive traders, focus threat has change into a significant issue. US shares now account for 66 per cent of a easy MSCI All-Nation World ETF — with a hefty portion coming from the “Magnificent Seven” tech mega caps. The subsequent largest nation weighting, Japan, is roughly 5 per cent, about the identical as Apple.
“For each £1 of an S&P 500 ETF you purchase, over 37 pence goes into the ten largest firms, and round 47 pence into the highest 20,” says Alex Watts, fund analyst at Interactive Investor. “Whereas earnings of a few of these tech giants have been strong, and there’s no consensus on whether or not this established order will proceed, on the very least traders might be underexposed to small and mid-sized shares, or to sectors exterior of tech.”
Actually, there’s the danger of a correction. “The arrival of the Chinese language AI agency DeepSeek on the scene has to date proved to be a little bit of a flash within the pan, however it highlights the sort of improvement which may knock among the huge tech titans off their efficiency perch,” says Khalaf.
For many wealth managers, the answer is a renewed deal with diversification.
“Diversification means various things to completely different traders,” says Evangelos Assimakos, an funding director at Rathbones. “Buyers which might be extra threat averse ought to marry up inventory market investments with asset lessons that provide a dependable ‘shock absorber’, be that within the type of gold bullion, a short-dated authorities bond or a fastidiously vetted absolute return fund,” he provides. “For traders with the next urge for food for threat, diversification might focus extra on making certain their inventory market publicity will not be unduly concentrated to 1 or two sectors which will have achieved properly for them.”
Bestinvest analysts counsel the Premier Miton US Alternatives fund for increased publicity to mid-caps and smaller firms, or the Xtrackers S&P 500 Equal Weight UCITS ETF to scale back heavy publicity to huge tech shares. Alternatively, for cautious traders who need to diversify away from US tech, Rob Morgan, chief analyst at Charles Stanley, picks JOHCM International Alternatives, and Private Property Belief for much less risky returns.
“To this point in 2025 Chinese language tech firms have returned close to 29 per cent, whereas US tech has floundered,” says Watts. For traders seeking to prime up on different areas, or who really feel their present allocation underexposes them to China, he suggests the HSBC MSCI China ETF, which gives broad publicity to over 580 massive and mid-cap firms, with a low payment of 0.28 per cent.
For traders who’ve seen their UK allocation underperform however who need to follow the nation, he suggests the Constancy Particular Values Belief, whose managers search for firms which might be undervalued by the market. “This valuation and contrarian focus makes for benchmark differentiation, and usually leads managers to allocate closely to small and mid-cap [companies],” he provides. The fund could be purchased at a reduction to internet asset worth of 5 per cent.
As Isa season hots up, the hot button is to keep away from making advert hoc funding selections, says Jason Hollands, managing director at Bestinvest. “One of the crucial frequent errors made by do-it-yourself traders is to get to the tip of the tax yr, resolve to open or top-up an Isa and choose a fund or belief based mostly on no matter is at present in vogue or has been performing properly.”
Over time, this method results in sprawling collections of funds which may resemble “a museum of once-fashionable concepts”, he says.

James Norton, head of retirement and investments at Vanguard, says: “Would you actually go into a store and ask to purchase extra of one thing the place the value has simply been elevated by 20 per cent or extra? Following the herd as a substitute of focusing in your particular person targets and perspective to threat not often pays off.”
West is topping up his tech holdings inside a diversified portfolio as a result of he believes that over 10 years tech innovation will outperform different sectors. However he agrees there’s a threat that shorter-term efficiency is not going to match that seen in recent times.
He additionally admits to having a set of outdated concepts that he not contributes to. “I nonetheless have the Royal Mail shares from its IPO and I’ve a Constancy China Fund that I feel will come good within the subsequent 10-20 years — additionally a really outdated Bric fund from 2010 when it was all the fad,” he says. He’s leaving them the place they’re for now, however many wealth managers say traders needs to be extra disciplined in promoting outdated holdings.
If protecting a detailed eye in your portfolio and recurrently rebalancing funds and shares sounds a bit an excessive amount of like onerous work, some platforms now provide managed portfolio choices — generally referred to as “managed Isas” — the place a fund portfolio is chosen, saved beneath assessment and rebalanced for you in an analogous method to multi-asset funds, which are available a spread of various threat profiles.
Brian Angulo is 33, lives in London, and has had his managed Isa with Vanguard for greater than a yr, intending the cash to be for 5 years forward, possibly for a home buy. “Earlier than I invested with Buying and selling 212 however discovered myself not able to selecting shares and index funds. I discovered it too scary,” he says.
Selecting your degree of threat is essential. A “balanced” method would possibly include 60 or 70 per cent publicity to shares and 30 or 40 per cent to bonds and different belongings. As of the tip of January, the ready-made “balanced” portfolio with the very best annual efficiency was eToro’s “Core Reasonable” product, with returns of 16.5 per cent internet of charges, in response to analysis by Investing Insiders (for whom, full disclosure, I’m an editorial adviser). Over the identical interval, the top-performing “aggressive and adventurous” portfolio — merchandise which generally have the next allocation of equities — was eToro’s “Core Fairness”. It returned 23.7 per cent and is fully made up of fairness ETFs. Each of eToro’s portfolios are constructed with asset allocation steering from BlackRock.
Whereas threat ranges can change, usually reducing, as you progress via life phases, your tolerance usually is dependent upon your different investments too.
Edwina Hudson, 67, lives in Coventry. Her principal supply of retirement earnings is her pension however she additionally has money and stocks-and-shares Isas. “In the course of the build-up to retirement we had been getting as a lot as attainable into each Isas and pensions,” she says. “The considering was, Isas had been accessible if we wanted a brand new automobile or for issues like paying for a marriage final yr.”
Hudson has a stocks-and-shares Isa with a threat profile of six, simply above their supplier’s center threat degree of 5. “We’ve not lowered our threat profile into retirement as a result of we now have money Isa and sufficient pension earnings,” she says.

No matter your tolerance to threat and your diversification technique, a key means to verify your Isa is properly positioned for 2025-26 and past is to verify it’s held on a platform that retains your prices low.
Solely 7 per cent of traders at all times evaluate the charges of an funding platform with its friends when seeking to open a brand new account — leaving the overwhelming majority at midnight in relation to their platform charges and prone to overpaying, in response to new analysis by Interactive Investor.
As a result of suppliers have completely different payment constructions for various providers, figuring out which gives you the very best worth for cash will depend upon how a lot you have got and what you need to do with it. Those that need to commerce particular person shares often will want to go for a platform with a decrease buying and selling payment; these with a bigger portfolio would possibly go for a platform that expenses a flat month-to-month payment, moderately than a share of your belongings. Companies that will let you evaluate platform charges and providers embody Boring Cash and Evaluate and Make investments.
“Common charges have fallen and in addition digital content material and apps have gotten loads higher, so when you haven’t moved your Isa or reviewed the marketplace for a while, it’s value taking a look at what’s on the market,” says Holly Mackay at Boring Cash, a client funding web site. “If you’re paying above the chances, or when you’re caught with a garbage app, or a irritating web site, do take a look round.”
In case you commerce UK shares, there at the moment are a handful of suppliers who don’t cost any Isa account or buying and selling charges for UK shares. However the greatest change is the standard of apps which can attraction to extra seasoned traders, together with Lightyear, Saxo Investor, Trading212 and xtb.
“The extent of data surfaced on these apps, with content material, suggestions and concepts is fairly good and makes among the incumbents look dated,” says Mackay. “You could not need to switch bigger sums right here, and make the case for governance over glamour, however you may also discover the combo of low prices and fancy apps fairly interesting, if just for a bit on the facet.”