Yield to call is the amount of money one receives if one holds an asset or security until the call date. A “callable bond” is a bond that the lender may “call”, which means they request that the issuer repay before the final maturity. The yield to call is the return the bondholder gets if they call the bond. The yield to maturity is generally higher than the yield to call, but it requires the bondholder to wait longer to receive their money.