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木木RJ · 2022年04月23日

有点疑问

NO.PZ2016031201000037

问题如下:

For a European call option with two months until expiration, if the spot price is below the exercise price, the call option will most likely have:

选项:

A.

zero time value.

B.

positive time value.

C.

positive exercise value.

解释:

B is correct.

A European call option with two months until expiration will typically have positive time value, where time value reflects the value of the uncertainty that arises from the volatility in the underlying. The call option has a zero exercise value if the spot price is below the exercise price. The exercise value of a European call option is Max(0, StXS_t-X ), where StS_t is the current spot price at time t and X is the exercise price.

中文解释:

距离到期日还有两个月的欧式看涨期权具有正的时间价值。B正确。

现货价格低于执行价格,看涨期权的执行价值为零。欧式看涨期权的行权值为Max(0,St -X)。

欧式期权只有到期才行权,此时St-2

1 个答案

Lucky_品职助教 · 2022年04月24日

嗨,爱思考的PZer你好:


Time value的来源是距离到期前的不确定价值。

欧式期权只能到期执行,目前还未到期,基础资产价格还有可能会小于执行价格,这个可能性隐含在时间里,所以还有time value.

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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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