Zen2020-10-07 15:24:24
long underlying asset为什么是S(股票)? 第五题: C + K = P + S, 到底K和S指的什么? S,我的理解应该是股票价格(=spot price),是forward price折现求和,这个理解对吧? K,我的理解是债券价格折现求和,为什么是执行价格exercise price.
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Evian, CFA2020-10-09 11:57:07
└(^o^)┘你好同学,
C+K=A fiduciary call
A fiduciary call is a portfolio consisting of:
A long position in a European call option with an exercise price of X that maturities in T years on a stock. 在公式中对应“C”
A long position in a pure-discount riskless bond that pays X in T years. 在公式中对应“K”
P+S=A protective put
A protective put is a portfolio consisting of:
A long position in a European put option with an exercise price of X that maturities in T years on a stock. 在公式中对应“P”
A long position in the underlying stock.在公式中对应“S”
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