comhmtps0020264206003493768 153146315344 newly issued bond p
Solution
Part 1: At 7.3%, ytm the price of the bond will be the future cash flows (coupon & maturity proceeds) discounted at ytm of 7.3%. Assuming face value of $100, the price will be :
Purchase Price = 4.3/(1+7.3%) + 4.3/(1+7.3%)2 + ... + (4.3 + 100)/(1+7.3%)10 = 79.22
After 1 year, the ytm will be 6.3% and residual maturity is only 9 years, hence the sale price will be:
Sale price = 4.3/(1+6.3%) + 4.3/(1+6.3%)2 + ... + (4.3 + 100)/(1+6.3%)9 = 86.57
Hence the holding period return = [(86.57 - 79.22) + 4.3]/79.22 = 14.71%
Part 2. Before we arrive at taxes, we need to segregate the portion of discount in bond price at the time of purchase into taxable as interest income and taxable as capital gains. SInce the bond was purchase (sold) at ytm of 7.3% at a price of 79.22 compared to face value (redemption value) of 100, we will calculate the price of bond at same yield after 1 year (constant yield price) - the difference between the purchase price and price after 1 year at constant yield is also considered as imputed interest income - it is a way of anortising the discount over the life of the bond. So the price of bond at 7.3% yield after 1 year will be :
Constant yield price = 4.3/(1+7.3%) + 4.3/(1+7.3%)2 + ... + (4.3 + 100)/(1+7.3%)9 = 80.70
Hence imputed interest income = (80.70 - 79.22) = 1.48
Thus total income taxable as interest income = (4.3+1.48) = 5.78 and taxes there on = (5.78 * 40%) = 2.31
Capital gains will be = (86.57 - 79.22 - 1.48) = 5.87 and taxes there on = (5.87 * 30%) = 1.76
Total taxes = (2.31+1.76) = 4.07
Part 3. After tax holding period return = [(86.57 - 79.22) + 4.3 - 2.31 - 1.76]/79.22 = 9.57%
Part 4. In 2 years the cash flows will be as below:
Purchase price = 79.22
Coupon Year 1 = 4.3; reinvested at 2.3% we get at end of Year 2 = 4.3 * (1+2.3%) = 4.40
Coupon Year 2 = 4.3
Sale price = 4.3/(1+6.3%) + 4.3/(1+6.3%)2 + ... + (4.3 + 100)/(1+6.3%)8 = 87.73
Hence total cash flows at end of Year 2 = 87.73 + 4.3 + 4.40 = 96.43
Hence the 2 year compounded return : 79.22 * (1+r)2 = 96.43 where r is the 2 year compounded holding period annualised return. SOlving for r, we get r = 10.33%
Part 5. We will first calculate the constant yield price for the bond at end of year 2 at 7.3% ytm:
Constant yield price = 4.3/(1+7.3%) + 4.3/(1+7.3%)2 + ... + (4.3 + 100)/(1+7.3%)8 = 82.29
Now the Interest component and tax there on will be as below:
Year 1 coupon = 4.3 and imputed interest is 1.48 and the tax there on is 2.31, hence net available for reinvestment is (4.3 + 1.48 - 2.31) = 3.47; at reinvestmen rate of 2.3%, it will become = 3.47*(1+2.3%) = 3.55 and taxes will be (3.55-3.47) * 40% = 0.03 and net of tax = 3.52
Year 2 coupon = 4.3 and imputed interest income will be (82.29 - 80.70) = 1.59 ; total = 5.89 and net of tax will be 3.53
Capital gains = (87.73 - 79.22 - 1.48 - 1.59) = 5.44 and net of tax will 3.81
Hence net of tax cash flows at the end of year 2 = 3.52 + 3.53 + (79.22+3.81) = 90.08
Hence the 2 year compounded return : 79.22 * (1+r)2 = 90.08 where r is the 2 year compounded holding period annualised return. SOlving for r, we get r = 6.63%

