NO.PZ2018122701000049
问题如下:
A portfolio consists of options on Microsoft and AT&T. The options on Microsoft have a delta of 1000, and the options on AT&T have a delta of 20000. The Microsoft share price is $120, and the AT&T share price is $30. Assuming that the daily volatility of Microsoft is 2% and the daily volatility of AT&T is 1% and the correlation between the daily changes is 0.3, the 5-day 95% VaR is
选项:
A.26193
B.25193
C.27193
D.24193
解释:
A is correct.
考点:Mapping to Option Position
解析:VaRMic= 1.65 × 2% × 120 × 1000 = 3960
VaRAT&T= 1.65 × 1% × 30 × 20000=9900
请问在组合sigma方的公式中, sigma方*权重平方可用VaR方代替吗? 答案中的计算公式是这个意思吗?