问题如下图:
选项:
A.
B.
C.
D.
解释:
老师好,请问股票微笑曲线表现出非对称的原因是什么?谢谢orange品职答疑助手 · 2019年04月28日
同学你好,其实这是一个实证结论了。我个人的理解是:首先,有一个理论事实是期权价格是和波动率成正比的,波动率越高,期权价格越高。第二,本来波动率微笑是应该对称的,但它为什么变得不对称、也就是一边会变高呢?这种变高,其实代表着一种溢价(按理说它就应该是对称的),这份溢价可以反映当时市场的情绪。现在是在行权价低的地方隐波高,也就是行权价低的地方,期权的价格比理论值偏高,这说明人们在K低的时候,市场非常恐慌(因为崩盘恐惧症、和高杠杆)。逻辑正过来说,市场很恐慌,所以人们会在行权价低的地方买很多期权,期权的价格比理论价格高,所以隐波就高了。
NO.PZ2016070202000023 问题如下 Assume thimplievolatilities from equity option prices spla volatility skew anthimplievols from currenoption prices spla volatility smile. Whiof the following statements about option priimplievolatility curves are true?I. The implievolatility of a ep out-of-the-money equity put option is higher ththof a ep-in-the-money equity put.II. The implievolatility of a ep out-of-the-money equity call option is higher ththof at-the-money equity call option.III. The implievolatility of a ep in-the-money currencall option cannot the same thof a ep in-the-money currenput option.IV. The implievolatility of a ep out-of-the-money currencall option is higher ththof at-the-money currencall option. A.I anIII only B.I anIV only C.II anIII only II anIV only A volatility skew means that, for equities, the ISof out-of-the-money (OTM) puts is greater ththof ITM puts, so answer I. is true. Conversely, the ISof ITM puts, or equivalently thof OTM calls, is similto thof ATM options, so answer II. is false. A volatility skew means that, for currencies, the ISof out- of-the-money options is greater ththof ATM options, so answer IV. is true. On the other han OTM anITM options might have similvols (for currenoptions), so answer III. is false. 是选正确的么? 24 像是正确的啊
NO.PZ2016070202000023 应该是错的吗?is是什么意思
解析没看懂,求