(ShareCast News) - On Wednesday evening FTSE announced the results of its December review, with Worldpay Group, Provident Financial and DCC replacing G4S, Morrisons and Meggitt in the top flight index as of 18 December.The three constituents which were set to exit the FTSE 100 would fatten the ranks of the second-tier index, alongside Hastings Group Holdings, Assura, Ibstock and Renewables Infrastructure Group.They were to replace in the FTSE 250 Foxtons Group, Hunting, Kaz Minerals, Petra Diamonds and Premier Oil, which will be demoted to the FTSE SmallCap index, joining new entrants Hostelworld Group and HarbourVest Global Private Equity.Kenmare Resources, on the other hand, was set to leave the FTSE SmallCap index.