Tom DeMarks Sequential trading system Hi Charlie, I don't know if Equis support gave you these formulas but here is how you should write your system or expert For the Buy signal I would use : Bsetup:=Sum(C1; BUY For the sell signal I would use : Ssetup:=Sum(C>Ref(C,-4),9)=9; SCD:=HighestSince(1,Peak(1,Ssetup,.001),(C>Ref(H,-2)) + PREV); SELL:=SCD-ValueWhen(1,Ssetup,SCD)=13 AND Ref(SCD-ValueWhen(1,Ssetup,SCD)=13,-1)<>1; SELL If any of you have a better way of doing it, please do not hesitate to post your version of Demark's sequential. As I have actually seen different version of this ... Hope this helps