IDX removes 300 HSC stocks from the JCI starting Friday
The 300 added names will be listed Thursday, while the earlier HSC issuers account for about 18% of the JCI’s market cap.
The Indonesia Stock Exchange will exclude 300 high shareholding concentration (HSC) stocks from the calculation of the Jakarta Composite Index starting Friday, November 13, 2026. The additional stock list is scheduled for release Thursday, one day earlier. With the methodology change, the total number of HSC stocks now stands at 383, up from 83 previously. The new criteria no longer use a Rp5 trillion market capitalization threshold or the price impact ratio, but instead directly assess ownership concentration: 10 shareholders or fewer control at least 92.5% of the shares. Jeffrey Hendrik, chief executive of BEI, said the 300 additional stocks represent about 6.16% of the JCI’s market capitalization, while the earlier 83 HSC stocks account for about 18%.