What is the price value of a basis point for a 5 year 6% treasury bond trading at par (assume a part value of 100 and that the bonds pays interest semi annually)?
N | PVF | CF | PVF x CF | PVF x CF x N |
1 | 0.9709 | 3 | 2.913 | 2.913 |
2 | 0.9426 | 3 | 2.828 | 5.656 |
3 | 0.9151 | 3 | 2.745 | 8.236 |
4 | 0.8885 | 3 | 2.665 | 10.662 |
5 | 0.8626 | 3 | 2.588 | 12.939 |
6 | 0.8375 | 3 | 2.512 | 15.075 |
7 | 0.8131 | 3 | 2.439 | 17.075 |
8 | 0.7894 | 3 | 2.368 | 18.946 |
9 | 0.7664 | 3 | 2.299 | 20.693 |
10 | 0.7441 | 103 | 76.642 | 766.417 |
Sum | 100.000 | 878.611 | ||
Mac. Dur. | 8.786 | |||
Mod. Dur. | 8.530 | |||
PVBP | 0.0853 |
Price value of a basis point (PVBP) = Modified Duration x Bond Price x 0.01%
= 8.530 x 100 x 0.01% = 0.0853
Modified Duration = Macaulay Duration / (1 + y/m) = 8.786 / (1 + 6%/2) = 8.530
Macualay Duration = Sum of PVF x CF x N / Sum of PVF x CF = 878.611 / 100 = 8.786
where, PVF - Present Value Factor = 1 / (1 + y/m)^N, and y = 6%, m = 2
CF - Cash Flows from the bond, N - Period.
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