I have been trying to work out which formula is the best to work out the best performing share or sector compared to an index using the explorer. I know many posts have come up on this subject but some of the have made me more confused as I am just starting I don't want to buy Jose Silva's (URSC) either. I have found 3 formulas but not sure which one to use. Option 1 x:= Security("Field to Security",C); y:= 1; z:= 52; R:= C/x; base:= Sum(R,z)/z; mf:= ((Ref(R,-y)/base)-1)*10; mf Option 2 ROC(Mov((C/P),52,S),1,%) Option 3 Div(CLOSE,P) Each of them have given me different results and I want to know which one is most reliable to use? Should they be programmed in any other way?