 The inclusion will commence at the conclusion of the 2020 Russell indexes annual reconstitution, and take effect after the US stock market opens on June 29, 2020, according to a preliminary list of additions posted June 5, 2020. FTSE Russell determines membership for its Russell indexes primarily by objective, market-capitalization rankings and style attributes. Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. 