Where the returns come from

How it is done

1. Every trading day we read TradingView’s data for about 3,700 UK-listed funds and ETFs, including their 1-, 3- and 5-year NAV total return and price change.
2. Total return (NAV, income reinvested) is used first. It is what a holder actually earned, whether the fund pays its income out or keeps it.
3. Price change is only used for investment trusts and REITs, which have no NAV total return. It leaves out dividends paid out, and the share price can sit above or below the value of what the trust owns.
4. Figures are taken from the fund’s pound-quoted line where there is one. A fund quoted only in dollars or euros is converted to pounds with European Central Bank reference rates at the start and end of the period.
5. For a few dozen funds we also hold a long record of our own daily or weekly closes; from those we calculate returns ourselves and all the risk measures (volatility, biggest fall, Sharpe, Sortino). Where a reported total return exists it takes priority for the return itself.
6. Each figure on the site is labelled "income reinvested" or "price only".

Limits to know about

• TradingView data is delayed and is not audited by us. We check it (below) but cannot guarantee it.
• The reported figures run to the fund’s latest reported NAV, which can be a few days behind the latest price.
• Checks: a figure is not shown if it falls outside plausible bounds for its kind of fund (for example, a bond fund losing 87% in five years), or if total return and price change disagree by more than income could explain. Leveraged and crypto products are allowed wider bounds, because they genuinely move that far.
• Price change for ETFs is not used at all: when a vendor lacks NAV data for an ETF, its price history is too often broken by splits and relistings.