小白问个关于put option价钱的问题

qinqinmiao
楼主 (北美华人网)
不是说股价跌, put option的价钱应该也是跌的吗?我好奇观察了几天Gamestop put option的价钱,这周Gamestop股价大跌,可是不管长期短期in or out the money put option也都在跌。谁能给我科普一下这是为什么呢?
seekingalpha
你这写得有点混乱,你大概是想问当股价朝着有利于 PUT 方向,为何 PUT 不涨反跌, 了解一下 option IV 吧。小白还是不要随便碰 option,里面的道道比股票复杂很多
m
mirabellewl
回复 1楼qinqinmiao的帖子
因为之前put option 涨了很多,那几天股票翻倍的时候我的put option也是翻倍。
miss6161
波动率下降了啊……
zicklingrad
You mean put option price should RISE when GME stock falls. I don''t know which puts you are looking at, the most puts expiring in February are up today, but not by as much as the calls are falling.
The market is about expectations. Everyone expects huge price swings in GME. That''s why there''s a huge premium priced into the options. But the thing with put options is, a stock can only fall to zero, so there''s a limit to the potential profit. In a call, there is no theoretical limit to how high it can go. This is why the GME calls tend to have bigger swings in response to the daily stock price movement.
I thought about buying puts last week, but the premium was too high. Huge implied volatility already priced in, not a good deal. Selling calls probably the better bet against GME, but it''s a very risky move, so it''s best to avoid.