Russell US Indexes reconstitution effective; CNTN on final Russell 3000 additions
FTSE Russell (LSEG) June 2026 semi-annual reconstitution took effect after U.S. equity market close June 26, 2026, with updated Russell 3000 membership reflected from the June 29 open. LSEG’s final Russell 3000 additions list includes Canton Strategic Holdings (NASDAQ: CNTN)—confirming the June 18 preliminary announcement. Reconstitution used April 30, 2026 rank-day data; Russell 3000 total market cap rose to ~$75.6T per LSEG summary.