This code below manually pulls out the DJI members and gets their prices. This might be useful instead.
djiaMembers=WolframAlpha["Dow Jones members",{{"Result",1},"ComputableData"},PodStates->{"Result__More"}];
members=WolframAlpha["company "<>#,"WolframResult", TimeConstraint->60]& /@ djiaMembers;
mem=EntityValue[#,"Symbol"]& /@ Cases[members,Except[_Missing]];
findata=FinancialData[#,"Price",{{2000},{2010},"Month"}][[All,2]]&/@mem[[-12;;-3]];