To further improve the index compilation methodology and enhance the index investability, on 30 April 2025, Shenzhen Stock Exchange (SZSE) and its subsidiary, Shenzhen Securities Information Co., Ltd., announced the revisions to the compilation scheme of the ChiNext Index. The revised scheme will take effect on June 16, 2025.

Launched on 01 June 2010, the ChiNext Index selects 100 ChiNext stocks with large total market capitalization and strong liquidity as its constituents. It serves as one of the key benchmark indices in China's A-share market and is a representative index for innovative and entrepreneurial enterprises. With a diverse range of financial products, active trading, and high investor attention, it plays an important role in the capital market. This revision was conducted after fully considering market feedback and drawing on recent innovations in broad-based index construction. The goal is to further strengthen the index's representativeness and investment functionality, better meeting the asset allocation needs of various types of investors. The main revisions to the ChiNext Index compilation scheme include: First, introducing an ESG negative screening mechanism to exclude stocks with a CNI ESG rating below Class B, thereby reducing the probability of major risk events occurring among index constituents. Secondly, a cap on individual stock weights has been introduced through the application of a weight adjustment factor, limiting the weight of any single constituent stock to not more than 20% at each regular rebalancing. This measure ensures that the influence of any individual stock on the overall index remains within a reasonable and controlled range. According to assessment results, the implementation of these optimization measures will not lead to substantial changes in the index constituents or their weights, nor will it alter the fundamental characteristics of the index. There will be no material impact on the operation of the index or related tracking products.

In recent years, under the unified leadership of CSRC, SZSE has accelerated efforts to build up the investment side of the market and continuously enhanced the services for long-term capital. On one hand, we have deepened research into index evolution patterns and the impact of key factors on index performance, while actively exploring new product development to precisely meet the asset allocation needs of different types of investors. On the other hand, we have formulated work plans to facilitate the inflow of medium and long-term capital in the market, focusing on improving product supply, optimizing the market environment, and enhancing investor services to help resolve bottlenecks restricting medium and long-term capital inflows.

Going forward, SZSE will continue to implement the spirit of the Third Plenary Session of the 20th CPC Central Committee, the Central Financial Work Conference, and the "Two Sessions", as well as the requirements of the new "Nine National Rules". By continuously improving the quality and strength of broad-based indices and related products while enriching the supply of high-quality investment instruments, we aim to provide diversified options for medium and long-term capital allocation, attract more capital inflows, and support the high-quality development of the capital market.