SET Announces Adjustment to Index Calculation Methodology for SET50, SET100, SET50FF, and SET100FF by Capping Constituent Stock Weights at 10% The Stock Exchange of Thailand (SET) has announced a revision to the calculation methodology of its key indices SET50, SET100, SET50FF, and SET100FF. Starting July 1, 2025, the weight of any individual stock in these indices will be capped at 10% during each quarterly rebalancing. This adjustment is in line with international best practices and is aimed at improving index efficiency by promoting greater diversification, reducing concentration risk, and providing a more accurate representation of the overall capital market. The change also strengthens the indices' role as effective tools for tracking investment performance and as reliable benchmarks for the development of financial products. ______________________________________________________________________