How do you calculate a range of yield to maturity (YTM) when you have a 5year-fixed term deposit at a bank. You get a fixed interest rate 4% p. a. for the first half of your deposit. And there is premium yield for the other half of your deposit - varying from 0% till 20% for that 5 years which depends on the developement of Dow Jones EURO STOXX 50 index. This offer was for bank clients with minimal deposit 500 000 euro and it was limited from the 14th April till 25th May 2009. I assume that part of the instruction is redundant (e.g. date or type of index)