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小鱼 · 2023年06月03日

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NO.PZ202208100100000103

问题如下:

Based on Patel’s outlook for Company B and using the information in Exhibit 2, the most appropriate strategy that Lyons could recommend to Patel is:

选项:

A.buy the June 2019 call and buy the June 2019 put. B.buy the June 2019 put and sell the November 2019 put. C.buy the November 2019 put and sell the June 2019 put.

解释:

Solution

C is correct. A long calendar spread can be constructed by buying the distant November 2019 put and selling the near-term June 2019 put. A long calendar spread using puts is appropriate if the expectation is for a stable market in the near term with a long-term bearish outlook. The purchase of the June 2019 call and put is a straddle. A straddle is directionally neutral—that is, neither bullish nor bearish—and is, therefore, inappropriate. The sale of the distant November 2019 put and purchase of the near-term June 2019 put is a short calendar spread. The short calendar spread is appropriate if the expectation is for a big move in the underlying stock, not if the outlook for shares is stable.

A is incorrect. The purchase of the June 2019 call and put is a straddle. A straddle is directionally neutral—that is, neither bullish or bearish—and is, therefore, inappropriate.

B is incorrect. The sale of the distant November 2019 put and purchase of the near-term June 2019 put is a short calendar spread. The short calendar spread is appropriate if the expectation is for a big move in the underlying stock, not if the outlook for shares is stable.

请老师讲解一下

1 个答案

pzqa31 · 2023年06月03日

嗨,爱思考的PZer你好:


这道题考察的知识点是calendar spread:

Calendar spread策略的构建使用的是两个类型相同,行权价格相同,标的相同,只有到期时间不同的期权。

Long calendar spread=short ST+long LT

short calendar spread=long ST+short LT

题干信息点:‘We expect the stock to remain stable in the near term, but in the long term,the outlook is bearish.’

首先,现在预测股价当前是平稳的,长期是下降的,即短期平稳长期价格有波动,因此使用的是long calendar策略,即买入一个长期限的期权,卖出一个短期限的期权(相反,如果认为短期波动大长期平稳,则构建short calendar策略,即买短期卖长期);

第二,现在对市场的看法是bearish的,因此使用的是put option来构建(如果对市场看法是bullish的,则使用call option来构建)。

所以选C


至于A选项的straddle,这两个策略的头寸是不同的,作用也是不同的,一个利用时间价值获取收益,一个利用波动率赚取利润。在对波动率变动有方向性判断的时候(bearish or bullish),并且能看出长短期波动不同,用calendar spread,如果没有方向性判断,只知道波动会变,则用straddle,考试也主要是给出场景,让判断用哪种期权,以及如何构建期权。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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NO.PZ202208100100000103 问题如下 Baseon Patel’s outlook for Company B anusing the information in Exhibit 2, the most appropriate strategy thLyons coulrecommento Patel is: A.buy the June 2019 call anbuy the June 2019 put. B.buy the June 2019 put ansell the November 2019 put. C.buy the November 2019 put ansell the June 2019 put. SolutionC is correct. A long calenr sprecconstructebuying the stant November 2019 put anselling the near-term June 2019 put. A long calenr spreusing puts is appropriate if the expectation is for a stable market in the neterm with a long-term bearish outlook. The purchase of the June 2019 call anput is a strale. A strale is rectionally neutral—this, neither bullish nor bearish—anis, therefore, inappropriate. The sale of the stant November 2019 put anpurchase of the near-term June 2019 put is a short calenr sprea The short calenr spreis appropriate if the expectation is for a big move in the unrlying stock, not if the outlook for shares is stable.A is incorrect. The purchase of the June 2019 call anput is a strale. A strale is rectionally neutral—this, neither bullish or bearish—anis, therefore, inappropriate.B is incorrect. The sale of the stant November 2019 put anpurchase of the near-term June 2019 put is a short calenr sprea The short calenr spreis appropriate if the expectation is for a big move in the unrlying stock, not if the outlook for shares is stable. 老师,这题说要hee this short position,那应该是要用看涨期权,long call option?为什么还要用 put calenr?put calenr也还是看跌,只是长短期波动不一样?

2023-02-13 16:01 2 · 回答