PROBLEM TO BE SOLVED: To provide a catalyst composition having high hydroconversion activity, a method for preparing the same and a hydroconversion process.SOLUTION: There is provided the catalyst composition comprising an emulsion containing an aqueous phase in an oil phase, wherein the aqueous phase contains a group 6 metal, and wherein between about 55 and 100 wt.% of the group 6 metal is sulfurated. There is also provided the method for making a catalyst emulsion, comprising the steps of providing an aqueous phase comprising an aqueous solution of a group 6 metal, wherein between about 55 and 100 wt.% of the group 6 metal is sulfurated; and mixing the aqueous phase into an oil phase to form an emulsion containing the aqueous phase in the oil phase. There is further provided the hydroconversion process, comprising the steps of contacting the catalyst composition 20 with a feedstock 22 in a hydroconversion zone 24 under hydroconversion conditions.