9 Out of 10 Active UK Equity Funds Trail Their Benchmark — Your Fund Manager's Fee Buys You Underperformance

S&P's SPIVA scorecard tracks active funds against their benchmarks. The UK equity category is brutal: over a 10-year horizon, around 85% of actively managed UK equity funds have historically trailed the S&P United Kingdom BMI. The numbers for US equity funds are even worse — over 90% of US large-cap active funds underperform the S&P 500 over 15 years.

What makes this especially damning is survivorship bias. The SPIVA data only counts funds that still exist. The ones that closed — the truly disastrous ones — are excluded from the calculation. The real underperformance rate is almost certainly higher.

You might think: "Fine, but I'll pick one of the 15% that do beat the market." Here's the problem. Morningstar's persistence studies show that funds in the top quartile in one period are no more likely than random chance to be in the top quartile in the next. Past outperformance does not predict future outperformance. What does predict future underperformance? High fees.

The Financial Conduct Authority's 2017 asset management market study confirmed what the data had been showing for years: there is weak price competition in the active fund industry, charges are not well explained to retail investors, and fund objectives are not always clear. The final report noted that actively managed funds "do not typically outperform their benchmarks after fees" — the regulator itself stating the case against active management.

A 0.75% difference in annual fees sounds trivial. It is not. Here's the maths on £100,000 compounding at 7% annual returns over 30 years:

• Index fund (0.10% fee): Net return 6.90%. Final value: £740,170
• Active fund (0.85% fee): Net return 6.15%. Final value: £599,490

That 0.75% fee gap costs you £140,680. One hundred and forty thousand pounds, gone — not to poor stock picks, but to the certainty of compound costs.

And 0.85% is generous. Many active UK equity funds charge 1.0-1.5%. Add platform fees of 0.25-0.45% and you could be leaking 1.5-2.0% annually. Over a working lifetime, that's the difference between a comfortable retirement and an anxious one.

This second chart visualises the gap. It doesn't look like much in year five. By year 20, the passive portfolio is £51,855 ahead. By year 30, £140,680. This is the relentless mathematics of compound costs — and it is the only thing in investing you can guarantee.

The FCA's study found that charges are the single best predictor of fund performance — and the relationship is inverse. Higher charges correlate with lower net returns. Every basis point you pay is a basis point you don't keep.

This is the most persistent defence of active management — that active funds protect you in downturns. The data doesn't back it up.

During the 2020 COVID crash (FTSE 100 down 14.3% for the year), the average active UK equity fund also posted double-digit losses. During 2022, when the FTSE All-Share managed a modest 0.3% gain, the average active UK equity fund still underperformed its benchmark after fees.

Why? Because the thing that makes active managers different from the index — their active share, their conviction bets — is what causes them to zig when they should have zagged. In a crisis, correlations go to 1. Everything falls together. The active manager's supposed edge — stock selection — becomes irrelevant when panic selling sweeps the entire market.

The index fund, by contrast, gives you exactly what the market gives you. If the market falls 30%, you fall 30%. There is no second layer of disappointment where you also discover your manager was overweight the worst-performing sector. You know what you own. That certainty — that absence of surprise — is a form of protection in itself.

For investors who want genuine downside protection, the answer is not an active equity fund. It is asset allocation — adding bonds, gilts, or cash to the portfolio. See our guides on UK gilts and gold as a portfolio diversifier for strategies that actually reduce volatility, rather than paying active fees for the hope of doing so.

Inside an ISA or SIPP, every pound of return is tax-free. But that cuts both ways: you also cannot claim tax relief on losses. So the objective is simple — maximise after-fee total return.

Index funds have a structural tax advantage beyond just lower fees: lower portfolio turnover. An active fund might turn over 50-100% of its portfolio annually, realising capital gains and incurring transaction costs. An index fund tracking the FTSE All-Share might turn over 5-10%. Those lower trading costs compound just like management fees do.

And for those investing outside an ISA wrapper: the dividend tax rates have risen sharply. The dividend allowance is now just £500 (2026/27), and the basic rate dividend tax is 10.75%, rising to 35.75% for higher-rate taxpayers and 39.35% at the additional rate. Active funds, with their higher turnover and greater distributions, generate more taxable events. A low-turnover index fund minimises the drag.

This matters enormously when the ISA allowance is £20,000 per year. Fill your ISA with a single global tracker at 0.12% and you keep virtually every pound of return. Fill it with active funds at 0.85% each, each generating taxable distributions when they trade, and the compounding disadvantage widens every year.

For more on how to structure your investments tax-efficiently, see our ISA hub and our guide to portfolio construction on the investing hub.

There's a non-financial return to passive investing that never shows up in a spreadsheet: you stop checking fund performance. You stop agonising over whether to switch managers. You stop reading Morningstar analyst reports trying to divine which fund will be in the top 15%.

You buy the market. You own every company. When Shell has a bad quarter, your tracker owns BP too. When banks fall, your tracker owns pharmaceutical companies that don't care about interest rates. You are betting on capitalism continuing to allocate capital — which it has done, through world wars, pandemics, and financial crises, for over a century.

The FTSE 100 has delivered roughly 7% annualised returns over the last 40 years, dividends reinvested. That includes 1987, 2000, 2008, 2020. If you had invested £10,000 in the FTSE All-Share in 1986 and reinvested all dividends, you would have roughly £150,000 today — despite every crash, every recession, every panic.

Your active fund manager might beat that. They almost certainly won't. And you'll pay handsomely to find out.

The SPIVA evidence is consistent across geography and time. In the US, over 90% of large-cap active funds underperform the S&P 500 over 15 years. In Europe, the numbers are similar. In emerging markets — supposedly less efficient, supposedly where active managers should shine — the majority still underperform over long periods.

The Bank of England's current base rate of 3.75% (held since December 2025) means cash ISAs are now paying competitive nominal rates — 4.5-4.7% at the time of writing. But as our analysis of the long-term case for equities over cash demonstrates, the equity risk premium persists. The question is not whether to invest in equities, but whether to pay active fees to access them.

A global index tracker gives you exposure to every major market — US, UK, Europe, Japan, emerging markets — for a single fee of 0.12-0.20%. Active global funds charge 0.75-1.25% for the same exposure, with the same SPIVA probability of underperformance. The geography changes. The arithmetic does not.