A bond seems to be a stable investment instrument relative to stocks. Because a bond investors are received periodical interest and insured repayment of principal at maturity. But a bond as investment instrument is exposed to several risks such as sys...
A bond seems to be a stable investment instrument relative to stocks. Because a bond investors are received periodical interest and insured repayment of principal at maturity. But a bond as investment instrument is exposed to several risks such as systematic risk and unsystematic risk.
That is, a bond has price risk and reinvestment risk when interest rate changes. Two risks have trade-off effect each other. Interest rate risk can be removed from offsetting those two opposite effect.
The principle of immunization was presented as a means of eliminating the risk of bond investment arising from market interest rate changes. It implies that the immunized portfolio, the Macaulay duration is equal to the investment horizon, will realize the promised yield at the horizon date in spite of unexpected market yield changes.
The purpose of this study is to test empirically the immunization strategy as a bond portfolio management for eliminating interest rate risk using duration in the Korean Bonds Markets.
To test the efficiency of an immunization strategy, the first thing to do is to organize sixth kinds of bond portfolio using immunization strategy and maturity strategy. The second is to compare both the realized yield and the standard deviation of the difference between the promised yield and realized yield of each portfolio.
Judging from the results of an empirical study, it may be concluded that the immunization strategy has an efficiency as a bond portfolio management strategy to eliminate the risk arising from the market yield changes and to guarantee the higher yield rather than maturity strategy do.