SZSE Component Index will have 30 sample stocks adjusted, with Zhenhua Technology (000733), CNGR (300919), etc. to be swapped in, and VCG (000681), Shunwang Technology (300113), etc. to be swapped out. ChiNext Index will have 10 sample stocks shuffled, adding TA&A Ultra Clean (300390), Dynanonic (300769), etc. and deleting Ourpalm (300315), SJ Environment Protection (300072), etc. SZSE 100 will have eight sample stocks changed, adding Tinci Materials (002709), JA Solar (002459), etc. and deleting Shunxin Agriculture (000860), Zhengbang Technology (002157), etc. 

The “1+2” core indexes of SZSE gather a number of high-quality listed companies, with greater market representativeness, and the sample stock companies present strong profitability, indicating the pivotal role of the capital market in driving sci-tech innovation and the transformation and upgrading of the real economy. After the adjustment, the market capitalization coverage rates of SZSE Component Index, ChiNext Index, and SZSE 100 Index will reach 69%, 57% and 43%, respectively, and the return on equity in the third quarter reports of 2021 will post at 12%, 14% and 15%, respectively. The weight of sample stocks of strategic emerging industries of SZSE Component Index and SZSE 100 Index will be 68% and 71% respectively, and the corresponding proportion of ChiNext Index will be as high as 86%. According to the third quarter reports of 2021, the average R&D intensity of SZSE Component Index and SZSE 100 Index is 5.3%, higher than the average of the A-share market, and the proportion of ChiNext Index is 7.6%.