单选题
The lower bound for an American call option is:
A、
Max (0, S-X).
B、
Max [0, S-X/(1 +RFR)T]
C、
Max [0, X/(1 +RFR)T-S].
【正确答案】
C
【答案解析】
The lower bound for an American call ranges from zero to the prevailing stock price less the present value of the exercise price discounted at the risk-free rate.
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