- 54. A fixed-income portfolio manager sets a minimum acceptable rate of return on the bond portfolio at 5% per year over the next 4 years. The portfolio is currently worth $10 million. One year interest rates are at 6% What is the portfolio value trigger point at this time that would require the manager to immunire the portfolio? $9,627,98 $10,205,625 $10,500,000 $12.155.063 55. Compute the duration of an 8%, 5-year corporate bond with a par value of $1,000 and yield to maturity of 10%. () 4.55 4.28 5 3.92 -56. Compute the modified duration of a 9coupon, 3-year corporate bond with a yield to maturity of 12%. () 23