Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Dow-Jones average [ˈdauˈdʒəunz-] n (US) и́ндекс веду́щих монопо́лий До́у Джо́нса
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.