MSCI Freezes Certain Changes to Turkey Indexes Over Market Integrity Concerns

05:47 PM EDT, 10/15/2026 (MT Newswires) -- MSCI (MSCI) said Thursday it froze certain index changes for Turkish equities effective immediately, citing concerns about market integrity and the reliability of free-float estimates. The freeze prevents increases in foreign inclusion factors or share counts, additions to the MSCI Turkey Investable Market Index, and upward moves between index size segments. MSCI said Turkish authorities have introduced initial measures to address concerns about coordinated trading and fund-held stakes, but further time is needed to assess their effectiveness.