HW 6, quiz Flashcards
How is duration impacted by time to maturity and coupon rate
Longer time to maturity, greater duration
higher the coupon rate, the lower the duration
Price risk
bond’s value decreases when interest rates rise
Reinvestment risk
the income from a bond portfolio decreases when interest rates decrease
PV of cash flows
CF1/(1+r) + CF2/(1+r)^2…
What is true about duration? (3)
It presents a weighted average of the time to each principal and coupon payment of a bond.
It presents the effective average maturity of the bond’s cash flows.
The duration of a zero-coupon bond is equal to its time to maturity.
Change in price given duration and change in yield
= - D * (change yield / 1 + y)
Duration formula
= 1 / P * ( #pmt (coupon/1+r) + #pmt (coupon/(1+r)^2) ….. #pmt ((coupon + par)/(1+r)^n))
Duration of liability
same formula as duration / PV of liability
% change in bonds price formula
= (-D * change in yield) + 0.5(convexity)(change in yield)^2