3 Mar 2020 FTSE Russell today announced the 2020 schedule for its annual reconstitution of its Russell US Indexes. The Russell annual index rebalance 2020 Reconstitution calendar for the Russell US Indexes. May-ranking month. May is "ranking" month when the largest US companies are lined up to form the 14 Feb 2020 Construction and Methodology. FTSE Russell | Russell U.S. Equity Indexes Construction and Methodology, v4.2, February 2020. 2 Corporate actions impacting reconstitution ranking. 19. 6.5. Reconstitution .