iShares Small-Cap ETF to Switch From Morningstar to MSCI Index

BlackRock will overhaul the iShares Morningstar Small-Cap ETF (ISCB) around October 5, 2026, changing its ticker to MSML and renaming it the iShares MSCI USA Small-Cap ETF. The fund will replace its existing benchmark with the MSCI USA Small Cap Index, which covers roughly 14% of the U.S. market’s free float-adjusted capitalization. The new index is market-cap weighted and, as of June 30, had significant exposure to financials, industrials and technology. The changes were approved by the iShares Trust board and initially announced August 6.