引用:
原帖由 fatpat 於 2012-11-15 10:36 發表
Another one for limited risk (Back Ration Spread)
DEC
SP214 x 2 @522
LP210 x 3 @347
Max risk 800pts if the market flat and no adjustment make until expiration.
This one is safe as if market goes way up (> 214), you loss nothing.
Loss if market stay flat, said within 210 - 214, but then the loss of time premium on
both strike price won't be very large.
So you can exit the position with only a little loss (probably ~20-30pts in the next 10 days)
If market gap down suddenly, or market goes way down, essentially you are selling a future,
so the floor is the limit (wins 1000pts if market drop to 20000 next month).