This is a projection of the rate at which your money could grow over the next year. To keep things simple, we quote the net yield (after fees are applied).
The projection is based on the 1-day yield, which means it takes the previous day’s return and scales this to reflect what the fund could earn over a full calendar year. The actual rate offered in each market is similar to the base rate set by the central bank (the Bank of England in the UK), which can fluctuate over time.