In: Finance
What is the price value of a basis point (DV01) for a 10 year 6% Treasury bond trading at par?
Price value of basis shows the money change in price of bond when YTM changes by 1 basis point of 0.01%
Increase in YTM by 0.01%:
Since bond is trading at par, YTM is equal to coupon rate
Assuming face value to be $1000.
YTM = 6%
New YTM = 6% + 0.01% = 6.01%
Coupon = 6% of 1000 = 60
Price = Coupon * [1 - 1 / (1 + r)^n] / r + FV / (1 + r)^n
Price = 60 * [1 - 1 / (1 + 0.0601)^10] / 0.0601 + 1000 / (1 + 0.0601)^10
Price = 60 * [1 - 0.557868] / 0.0601 + 557.868263
Price = 60 * 7.356601 + 557.868263
Price = $999.2643
Decrease in YTM by 0.01%:
Since bond is trading at par, YTM is equal to coupon rate
Assuming face value to be $1000.
YTM = 6%
New YTM = 6% - 0.01% = 5.99%
Coupon = 6% of 1000 = 60
Price = Coupon * [1 - 1 / (1 + r)^n] / r + FV / (1 + r)^n
Price = 60 * [1 - 1 / (1 + 0.0599)^10] / 0.0599 + 1000 / (1 + 0.0599)^10
Price = 60 * [1 - 0.558922] / 0.0599 + 558.921838
Price = 60 * 7.363575 + 558.921838
Price = $1,000.7364
Price value of a basis point = (1,000.7364 - 999.2643) / 2
Price value of a basis point = 0.74