An individual bond has an end date: hold it to maturity and you get par back, whatever its price did along the way, as long as the borrower pays. Some investors build a ladder of bonds that mature one after another. A bond fund works differently. It keeps selling bonds as they approach maturity and buying longer ones, a rolling maturity that holds its average duration roughly steady.
That makes a fund easy to hold and spreads the risk across hundreds of borrowers, but it never reaches a date when its price is guaranteed to come back. When rates rise, a bond fund's price falls and stays exposed to rates indefinitely; there's no maturity at which the loss washes out. In the app, bond funds are tracked like any other fund. Individual bonds aren't available, so a ladder can't be tracked here.
Hold a bond to maturity and its price swings wash out. A fund never gets to that date.
Educational content only. It is not personal financial advice.