静同学2023-11-13 15:50:17
完全不懂这题是什么意思
回答(1)
Evian, CFA2023-11-14 14:59:51
ヾ(◍°∇°◍)ノ゙你好同学,
Messer answers, “We use the BSM model to calculate estimates on a wide array of comparative option variables, such as how much the option value will change for a change in a particular parameter. For example, we can estimate how the rate of change of an option price speeds up or slows down for a given change in the price of the underlying index.”
Messer concludes, “We also use the BSM model to calculate the implied volatility. The implied volatilities of the index options expiring in one year are shown in Exhibit 2.”(如上你给的截图)
协会给的A选项感觉读不通
应该加两个单词:Usind out-of-the-money 【put】 options to hedoe is more expensive than establishind a lond position with out-of-the money 【call】 options. 这个题目超纲了
思路了解一下即可,这个知识点在三级衍生会学
假设Stock price不变,根据表格Exhibit 2的信息,对于call option而言,X↑,call处于OTM,对应隐含波动率越小,期权费越便宜
假设Stock price不变,根据表格Exhibit 2的信息,对于put option而言,X↓,put处于OTM,对应隐含波动率越大,期权费越贵
于是有了A选项说OTM的put比OTM的cal
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