Methodology

How every figure is calculated

Each number on Fundology comes from a named source and a written rule. If a figure does not match the rule on these pages, that is a mistake on our side — tell us and we will fix it.

• Where the returns come fromMost return figures on Fundology are the fund’s total return as reported by TradingView: the change in its value with income reinvested, after the fund’s own charges. Where that is not available we use the change in price, and we always say which one you are looking at.Read the method →
• Real returnA real return is what an investment gained once rising prices are taken out. If a fund grew 50% while prices in the shops rose 25%, the extra spending power is 20%, not 50%.Read the method →
• Fee dragEvery fund takes a yearly charge from the money it holds, called the ongoing charges figure (OCF). Small percentages add up, so we show roughly what it comes to in pounds on £10,000 over five years.Read the method →
• Ups and downs: volatility, biggest fall, Sharpe and SortinoThese measures describe how much a fund’s price has jumped around in the past. They need a long price record, so we show them only for funds whose closes we have recorded over the whole period.Read the method →
• Holdings overlapTwo funds with different names can own mostly the same companies. Overlap adds up, company by company, the smaller of the two funds’ weights.Read the method →
• How funds are groupedEvery fund we price is put into one category a beginner can recognise, from what it holds, where, and how it is built. The rules are fixed and written down; no fund can pay to be placed.Read the method →
• Data sourcesEvery figure on Fundology comes from a named public source. This page lists each one with its licence and when it last refreshed.Read the method →

Last reviewed 22/09/2026