丹同學(xué)
2022-05-18 22:16if there is volatility skew, the volatility for OTM put is higher than volatility for OTM call, why we can 1> buy call and sell put and 2> delta hedge the option position by selling the underlying asset?
所屬:CFA Level III > Derivatives and Currency Management 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個(gè)回答
Chris Lan助教
2022-05-19 12:16
該回答已被題主采納
同學(xué)您好
why we can 1> buy call and sell put
因?yàn)榇藭r(shí)OTM call的隱含波動(dòng)低,說明其價(jià)格低估,而OTM put的隱含波動(dòng)高,說明其價(jià)格高估,因此我們應(yīng)該買定價(jià)低估的期權(quán),賣定價(jià)高估的期權(quán)。
2> delta hedge the option position by selling the underlying asset?
因?yàn)閘ong OTM call有正的delta,short OTM put也有正的delta,因此該策略的delta敞口為正,因此要對(duì)沖delta敞口,就需要找一個(gè)delta為負(fù)的資產(chǎn),因此short underlying asset會(huì)帶來負(fù)的delta,從而完成delta對(duì)沖。
