问题如下图:
选项:
A.
B.
C.
解释:
请问能解释一下为什么at the money时候,instrinsic value等于0吗?
t=t时,exercise value = St-FP/(1+rf)^t, at the money不是St=X吗
NO.PZ2016031201000048 问题如下 at-the-money Americcall option on a stothpays no vin hthree months remaining until expiration. The market value of the option will most likely be: A.less thits exercise value. B.equto its exercise value. C.greater thits exercise value. C is correct.Prior to expiration, Americcall option will typically have a value in the market this greater thits exercise value. Although the Americoption is at-themoney antherefore hexercise value of zero, the time value of the call option woullikely leto the option having a positive market value. 中文解析market value = time value + intrinsic value(即execise value),该option目前是ATM状态,即execise value =0,而距离到期日还有3个月,time value 0,所以market value 0 , 选 如上
老师你好,可以完整讲一下这道题么?
equto its exercise value. greater thits exercise value. C is correct. Prior to expiration, Americcall option will typically have a value in the market this greater thits exercise value. Although the Americoption is at-themoney antherefore hexercise value of zero, the time value of the call option woullikely leto the option having a positive market value. 这是我自己写的的推到过程,请问下,对不对
问一个和解题不太相关的问题,在option pricing里面方法三有学过Americcall 的最小值和europecall是一样的,因为不可能卖的比euro call便宜即max(0,St-pv of X)但我看之前的解答里面,老师都提到Americcall = max(0,St - X)没有用euro call的最小值公式为什么呢
Q1:我是这样想的at-the-moneyST=X, 此时t=t时刻,那么St=ST/(1+RF)^T-t, 那么St肯定小于ST(即X)。但是St,ST指的是unrlying asset的价格(错因之前一直把他们当做option在t时刻的市场价)。此时问题等价于,t=t时刻,比较option value=(St-X/(1+rf)^T-t)+time value与 X 之间的大小。又因为X=ST,所以intrinsic value=(St-X(1+rf)^T-t)= 【ST/(1+RF)^T-t】-【X/(1+rf)^T-t】=0。因此option value=time value 0=exercise value。Q2:下列 t=t时刻的期权价格option value是不是全部省略了time value? 美式call max(0,St-X/(1+rf)^(T-t))put max(0,X-St)Q3:题目中说,at-the-money,exercise value=0,是不是因为exercise price=current priof unrlying,不赚不亏,行权无收益,所以exercise value=0(exercise price与exercise value不是一回事)?