问题
单项选择题
An investor buys a call option with a $25 exercise price priced at $4 and writes a call option with a $40 exercise price priced at $2.50. If the Price of the stock increases to $50 at expiration and the options are exercised on the expiration date, the net profit at expiration (ignoring transaction costs) is:
A．
| A. $8.50. |
B．
| B. $13.50. |
C．
| C. $16.50. |
答案
参考答案：B
解析：The net cost is: $4 and received $2.50= $1.50. Gain or loss from the calls : long call $50 - $25 = gain of $25. Written call $50- $40= $10 loss. net position $25- $10= $15. Overall gain or loss: gain $15 -cost $1.50 = $13.50 gain.