Vanguard USD Treasury Bond UCITS ETF (GBP) VUTY

This ETF tracks the performance of a broad spread of USD denominated bonds paying a fixed rate of interest issued by the US government.

When you say “a fixed rate of interest “does it mean that the interest rate will not change until maturity? not even with inflation?

Fixed Interest is a general term used for bonds. In a fixed income fund there will be many different bonds which all will be paying different rates.