| sample exam II 上47题:   An investor purchases a 3-month put option on a stock with an exercise price of $35. The risk-free rate is 4.5 percent. At expiration, the stock price is $33.50. The option's payoff is closest to: A  $0 B  $1.48 C  $1.50   答案是C 也就是没有考虑到期权费    我的理解是这里说的是option的payoff      如果换成是investor的payoff是不是就要考虑到期权费了???  求高手解答 |