The Yield is variable.
The variable IRR of your portfolio is updated according to different parameters, the most important of which is the official interest rate set by the central banks (ECB for the EURO, and the FED for the USD).
Note: ECB stands for the European Central Bank, FED for the Federal Reserve in the USA which are the ones that determine different official rates that condition all the interest rates in their respective currencies, Euro for the ECB, Dollar for the FED.
The investment committee has designed a portfolio of funds or a portfolio of ETFs, on the one hand, to maintain your capital and at the same time optimize the return you get for it. This portfolio is monitored to get the most for your money and to automatically pass on the evolution of official rates to your savings. We will notify you when interest rates change (ECB and FED).