蛋同学2023-07-13 23:15:37
A portfolio manager owns a portfolio of options on a non-dividend paying stock RTX. The portfolio is made up of 10,000 deep in-the-money call options on RTX and 50,000 deep out-of-the money call options on RTX. The portfolio also contains 20,000 forward contracts on RTX. RTX is trading at USD 100. If the volatility of RTX is 30% per year, which of the following amounts would be closest to the 1-day VaR of the portfolio at the 95 percent confidence level, assuming 252 trading days in a year?标的资产的VaR值如何计算?
回答(1)
Will2023-07-14 11:13:13
同学你好,这题其实想让我们求的是Delta normal VAR。
根据公式|Δ|*VaR
首先要求delta,10000ITM call option delta=10000, 50000OTM call option delta=0, 20000 forward delta=20000。
因此组合总delta=10000+20000=30000。
再算标的VAR(1-year)=Z*σ*P=1.645*30%*100=49.35,转化成一天的VaR=3.108758
|Δ|*VaR=3.108758*30000=93262.73
感谢正在备考中乘风破浪的您来提问~如果您对回复满意可【点赞和采纳】鼓励您和Will更加优秀,您的声音是我们前进的动力,祝您生活与学习愉快!~
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