FTSE Russell updated rules to allow rapid inclusion of large-cap companies into the Russell 1000 and 3000 indexes. Eligible IPOs can now join after five trading days. This replaces the previous policy of waiting for quarterly reviews.
The rule applies to companies with an investable market capitalization exceeding the smallest member of the Russell Top 500. The change aims to capture major market shifts from anticipated mega-IPOs like SpaceX, OpenAI, and Anthropic.
The move aligns FTSE Russell with Nasdaq, which recently shortened its own inclusion window. S&P Dow Jones Indices is reportedly considering a similar adjustment to remain competitive.