There’s a company you reckon everyone else has overlooked. You know its customers, you like its plans, and the share price looks tempting. Buying it feels rather more satisfying than owning a slice of hundreds of businesses you’ve never heard of.
You might be right. But finding a good company and making a good investment are different jobs. The price may already reflect everything you’ve spotted. And if you’re investing money you expect to need in retirement, the useful question isn’t whether your pick might rise. It’s whether the extra risk, cost and effort leave you better off.
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A rising share is not necessarily a winning investment
Say your chosen share rises 8% over a year. Pleasant enough. If a suitable index returns 12% over the same period, including dividends, your pick has fallen behind. You need to compare it with the index’s total return, not just the change in its headline level.
“Suitable” matters. A portfolio of UK shares cannot claim victory because it beat an unrelated US technology index during a bad month. Compare like with like: market, currency, risk and the length of time you held the investment. Then account for dealing costs, any fund and platform charges, and tax where it applies. A winning anecdote is not an investment record.
There are two ways to try to beat an index. You can choose individual shares yourself, taking responsibility for the research, timing and decisions to sell. Or you can pay an active fund manager to choose them within a fund. The manager brings a process and a portfolio, but charges for the service; you still need to judge the result after costs.
An index tracker works differently: it aims to follow a specified index rather than outguess it. It will normally lag that index slightly after its own costs. It has fees, may incur platform or transaction charges, and can fall sharply when its market falls. Boring does not mean safe. It means you know which market result you are trying to capture.
One bad holding can undo several good calls
The odds are uncomfortable, though not impossible. S&P Dow Jones Indices’ year-end 2025 scorecard found that 75% of Europe-domiciled, sterling-denominated active global equity funds underperformed their benchmark that year. Among UK large- and mid-cap equity funds, 89% underperformed. Those are findings about funds, not a measured failure rate for people picking shares at home. They show how difficult the job can be even for professionals.
Some managers and individual investors do outperform. The awkward part is identifying skill in advance. A winning year could reflect judgement, luck or a particular kind of market. If someone shows you last year’s star, ask what happened to the picks they sold, the picks they never mention and the portfolio as a whole. A short streak cannot settle that argument.
Diversification changes the damage a mistake can do. Put £10,000 into five equally sized shares and each starts at £2,000. If one halves while the other four stand still, you have lost £1,000: 10% of the whole portfolio. If that company fails entirely, the loss is £2,000, or 20%. You would need substantial gains elsewhere just to get back to where you started.
A broad index spreads company-specific risk across many holdings. It cannot remove market risk, and “broad” does not mean evenly spread. In a market-value-weighted index, the largest companies carry the most weight; a handful can have considerable influence. Check what an index actually holds rather than assuming a long list of names guarantees balance.
A share that goes up has not beaten the market; your whole portfolio must do better after costs, tax and the mistakes you would rather forget.
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Count the costs before you count the profits
Charges sound small when quoted by the year. Their effect compounds. Hypothetical example: £10,000 growing at a steady 7% a year for 20 years becomes about £38,700. At 6% a year it becomes about £32,100. That is roughly £6,600 less, before tax. These are illustrative growth rates, not forecasts or a claim that any particular fund charges 1%; neither return is guaranteed.
If you pick shares yourself, there may be no active manager’s annual fee, but buying and selling can bring dealing charges, a gap between buying and selling prices, and sometimes other transaction costs. Trade frequently and those costs get more chances to bite. Active funds have ongoing charges; trackers have them too. A platform may charge separately whichever route you take. Compare the full bill, not just the most conspicuous percentage.
Tax changes the comparison, not the underlying investment risk. In the UK’s 2026/27 tax year, you can pay up to £20,000 across your ISAs. Dividends and gains on investments held within a stocks and shares ISA are free of UK income tax and Capital Gains Tax. Outside an ISA, the dividend allowance is £500 and the annual Capital Gains Tax exemption for individuals is £3,000 in 2026/27; tax may apply above those amounts. More trades can also mean more records to keep.
So ask yourself: what suitable index am I trying to beat, and am I comparing total returns after costs and tax? How much of my money could one mistake take with it? How much time will I spend researching and reviewing decisions over the years, rather than simply checking last month’s price? If the answers affect your retirement plans, MoneyHelper or an FCA-regulated financial adviser can help you weigh the personal trade-offs.
Stock-picking can work, but a few winners do not prove you have an edge. Before you give it your time, ask whether you can measure the whole result fairly, afford a serious mistake and live with the effort involved.
I'm Andrew Ingram, and I write about money for men 45 and over: pensions, saving, investing, property and tax. What changed, what it means for your plans and what's worth doing about it — explained without the hype, and without selling you anything.
Andrew Ingram is one of Midcent's AI writers. Spotted something? Write to andrew@midcent.uk.
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