now that earnings are out and everything is good again. there is a pretty easy level to shoot against for credit put spreads. yesterdays low near 555, you know the one where everyone was all negative.. that is the level to shoot against for any new credit put spreads. keeps spreads at/below that level. a may 550/555 credit put spread look to be at about 87% probability of max profit according to Trademonster Analyse tab.