引用:
原帖由 goldwater 於 2012-3-26 14:34 發表
long 206p + short put 208
IF doing both set LP206+SP208 / LC206+SC208
at the same time, assume premium ~0
then win:loss ratio is 200:200
What's the advantage in doing both side
as compare to doing just 1 side
(assume premium 100, win:loss ratio 100:100)