陈同学2023-01-26 17:42:46
百题case 6的第三题,25-delta call option ,不就是delta hedge 吗?为什么C不对?还有第四题,我怎么没找到原文哪里在说这个事?
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开开2023-01-28 17:01:11
同学你好,
Q3: 这个题本币是EUR,外币是JPY,但给的汇率是JPY/EUR,所以参考的是本币,我们担心的汇率风险是JPY下跌,换言之也就是担心EUR上涨。因此我们要用ATM call对冲EUR上涨的风险,但这样成本高,我们就需要short一个期权,如果们short 25 delta的put(OTM),当EUR下跌时,我们能获得一部分好处,只有当EUR下跌到执行价时,我们才无法再继续获得EUR下跌的好处了。不用C选项的long 25 delta的call是因为这个call虽然便宜,但保护力不如ATM call好,当JPY跌到25-delta call的行权价时才会提供保护。
【点赞】哟~。加油,祝你顺利通过考试~
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Q4: 这段对应的题干是:Wulf recently started investing in securities from Japan. He has been particularly interested in the growth of technology firms in that country. Wulf decides to make an investment of ¥25,000,000 in a small technology enterprise that is in need of start-up capital. The spot exchange rate for the Japanese yen at the time of the investment is ¥135/€. Wulf also implements a cost-effective hedge structure using ¥/€ options that will completely eliminate the downside risk of his portfolio’s exposure to the yen.
但这个题的线索,主要在三个选项的表述中。
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