NO.PZ202112010200003101
问题如下:
What is the approximate unhedged excess return to the United States–based credit manager for an international credit portfolio index equally weighted across the four portfolio choices, assuming no change to spread duration and no default losses occur?
选项:
A.–0.257%
–0.850%
0.750%
解释:
A is correct. We solve for the excess spread by subtracting Expected Loss from
the respective OAS:
Recall that the United States–based investor must convert the euro return to US dollars using RDC = (1 + RFC) (1 + RFX) – 1, so the USD IG and USD HY positions comprising half the portfolio return an average 0.80%, while the EUR IG and EUR HY positions return –1.314% in US dollar terms (= ((1 + ((0.65% + 0.75%)/2)) × 0.98) – 1), so –0.257% = ((0.80% – 1.314%)/2).
1 题目没说spread的变化情况 是不是就默认为delta(spread)=0
2 题目不是说没有违约事件发生啊?按说最后一项应该为0才对,为啥再计算EXR的时候 还是把 expected loss 加上了?