刘同学2024-07-26 11:07:55
buying a put option and selling a call option with respect to option time value decay,如果时间价值下降,那不是应该说明期权本身价值下降,那么售价应该下降,所以买方和卖方都应该获利吗?还是因为时间价值下降,然后出售和购买价格都不变,然后卖方因为以高于内在价值出售所以获利,买方以原有价格购买却少获得时间价值而增加成本?
回答(2)
Evian, CFA2024-07-27 18:21:17
ヾ(◍°∇°◍)ノ゙你好同学,
Which of the following statements correctly describes an important distinction between the two strategies of buying a put option and selling a call option with respect to option time value decay?
A.Time value decay is a benefit to both option strategies.
B.Time value decay is a cost to both option strategies.
C.Time value decay is a benefit to selling a call option and a cost to buying a put option.
C is correct.
The time value component of an option premium declines toward zero as time passes toward the expiration date. A purchased option declines in value, all else equal, because of the time value decline. A sold option increases in value, all else equal, because of the time value decline. A is incorrect as time value decay is a cost to the purchased put option strategy, and B is incorrect as time value decay is a benefit to the sold option strategy.
- 评论(0)
- 追问(2)
- 追答
-
Theta,希腊字母,衡量期权价值(内在价值+时间价值)下降,因为时间流失(时间价值↓),期权处于价内状态的概率↓,所以期权价值↓。
期权本身(合约自身)价值下降,那么售价(双方交易时认同的市场价格)应该下降
买方和卖方是否获利,需要看期初合约价格和当下合约价格的大小关系
只考虑时间价值下降
对long方不利,因为手里的期权合约不值钱
对short方有利,因为期初收到期权费之后,只要long方不行权,期权费就是自己的,short方希望快点到期T时刻,到手期权费,以及long方不行权
---------------------
投资更加优秀的自己👍 ~如果满意答疑可【采纳】,仍有疑问可【追问】,您的声音是我们前进的源动力,祝您生活与学习愉快!~
- 追问
-
所以我理解的对吗
Bingo2024-08-15 14:01:24
同学你好,
你说的不对,买方和卖方不可能均获利,衍生品是零和游戏,怎么可能双赢
以上回复说过了
只考虑时间价值下降
对long方不利,因为手里的期权合约不值钱
对short方有利,因为期初收到期权费之后,只要long方不行权,期权费就是自己的,short方希望快点到期T时刻,到手期权费,以及long方不行权
- 评论(0)
- 追问(0)
评论
0/1000
追答
0/1000
+上传图片

