In: Finance
U.S. Treasury quotes as follows: U.S. Treasury quotes from the WSJ on Oct. 15, 2003:
Rate |
Maturity |
Ask |
Change |
Ask yield |
7.1250 |
Oct 15, 2005 |
102:08 |
-1 |
5.9156 |
a. What is the duration of the above Treasury note? Use the asked price to calculate the duration. Recall that Treasuries pay interest semiannually.
b. If yields increase by 10 basis points, what is the
approximate price change on the $100,000 Treasury note? Use the
duration approximation relationship. Briefly discuss.
Part A ) Duration is calculated in the Excel and it is 1.85
Part B )
Since duration is 1.85 and yield is increased by 10 basis points hence the change in price can be calculated using the duration formula
Change in price = - Duration * Change in yield * Price
= -1.85 * 0.1% * 100,000 = -$185
So the price of treasury note will decrease by $185 or more precisely $184.88 when we take duration without round off as 1.8488