Problem: Calculate the convexity of the ABC bond
Company Maturity (years) Coupon (%) Price Yiled to Maturity (%)
ABC 4 10 98 10.63
DEG 8 9 87 11.53
GHI 22 11 102 10.76
JKL 28 10 90 11.17
Suppose market interest rates change by 50 basis points. Estimate the new price of the ABC bond using the follosing:
a. Duration only
b. Duration and convexity