再給你舉個極端的例子，你可以賣100 張465的Put contact，那豈不是max profit1更多？

所有跟帖： 

• 因為put ratio spread 就是賣2張put呀，所以也用2 張put 在selling put only上。 -aloevera- ♀ (692 bytes) () 02/18/2025 postreply 16:36:57

• I gave up :) -三心三意- ♂ (0 bytes) () 02/18/2025 postreply 16:39:41

• Sorry for taking up so much of your time! Feel bad。 -aloevera- ♀ (0 bytes) () 02/18/2025 postreply 16:41:13

• After dinner, I relooked at your posts. I think I've got it -aloevera- ♀ (532 bytes) () 02/18/2025 postreply 20:35:20