- How is the dollar duration different from the PVBP (price value for one basis point)? I have not seen this in the Schweser material but it was on a practice test. 2. An 8% coupon bond with a par of $100 matures in 6 years and sells at $95.51, yield 9%. One year ago, the bond sold at $90.26, yield of 10%. What is the change in price attributable to a change in maturity? 3. What is the ending balance for a short position of 10 contracts if price is $100 at time 0, Initial requirement is $5, maintanence margin requirement is $3, Settlement on day 1 is $103, Day 2 is $96, and on Day 3 is $98? Thanks guys! -Richard