Quote from ammo:
in hindsigt but it's theoretical anyway, your short the 600 call long the 660 call,short the 660 put long the 600 put,today the long call is losing money,you take it off and put it back on ,or your losing money on the short 660 put,take it off and put it back on,go home neutral overnight,just scalp in and out with the direction of the move,the short call spread is making money,you lift the short put,put it back on at a better price, by expiration you may have taken 20 points out of it,always going home neutral