<h1>Index methodology reform with a 20% weight cap and ESG screening reshapes growth-sector exposure and global investor access.</h1> Methodology adjustments to the ChiNext Index establish a 20% cap on individual stock weights and an ESG negative screening mechanism to reduce concentration risk and align the index with international standards, while reorienting composition toward high-growth sectors such as information technology, new energy vehicles, and healthcare, thereby supporting attraction of global ETF and cross-border investor flows.