How much would an investor lose the first year if she purchased a 30-year zero-coupon bond with a $1,000 par value and a 9.5% yield to maturity, only to see market interest rates increase to 11% one year later?
Sol:
Par value (FV) = $1000
Period (n) = 30 years
Yield to maturity (r) = 9.5% in first year, After 1 year 11%
To determine how much investor will lose in the first year:
Present value (PV) at year zero with 9.5% rate = FV / ( 1 + r)^n
Present value (PV) at year zero = 1000 / ( 1 + 9.5%)^30
Present value (PV) at year zero = 1000 / ( 1.095)^30
Present value (PV) at year zero = $65.70
Present value (PV) at year 29th with 11% rate = FV / ( 1 + r)^n
Present value (PV) at year 29th with 11% rate = 1000 / ( 1 + 11%)^29
Present value (PV) at year 29th with 11% rate = 1000 / ( 1.11)^29
Present value (PV) at year 29th with 11% rate = 48.49
Amount investor lose in the first year = $65.90 - $48.49 = $17.41
Therefore amount investor lose in the first year will be $17.41
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