Japan Exchange Group Inc.’s first large-scale reshuffle of the Topix Index goes into effect Friday, part of the biggest overhaul in the benchmark’s history that may shrink the number of constituents by more than one-third. The weighting of stocks slated for removal in this initial review will be gradually reduced, potentially cutting about 700 names and leaving the index with less than 1,000 members. The revamp also expands index eligibility to market segments geared toward smaller and growth firms, as long as they meet criteria including liquidity. Annual reshuffles will start from October 2028.
Some investors expect this change to spur competition among companies to remain in the index, boosting Japan’s stock market over time. In the initial phase, stocks earmarked for removal will have their weighting cut to zero over eight quarters. But they can put a stop to it if they can meet the Topix inclusion criteria by the next reassessment, making October 2027 a key event for listed firms and investors tracking the gauge.
To remain in the index, companies must meet thresholds based on measures including annual traded-value turnover and the market capitalization of shares available to public investors. As larger companies gain in market value with their outperformance, the hurdle is raised for smaller firms to remain above the cutoff point. The Topix restructuring may help lift Japan’s stock market over the longer term by encouraging companies, particularly small and mid caps, to enhance corporate value and boost share trading liquidity to stay in the index.
Source: Bloomberg Markets · Summarized by HeadlinesBriefing