Index Rebalance

CSI 100 Index Earning Revision (Jul): ZHONGJI INNOLIGHT, EOPTOLINK TECHNOLOGY, TONGWEI, Longi Green

31 Jul 2026 By Ke Yan, CFA
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Abstract: We analyzed the earnings revision of CSI 100 index component stocks for July 2026. The index fell 7.4% over the month from 4,866 to 4,505, and our estimated 2026E index EPS declined 8.4% month-on-month from ¥263.5 to ¥241.3, with 25 stocks revised up and 41 revised down. Individual stock EPS revisions contributed -¥0.377 to the index EPS change. The largest negative impacts on index EPS came from Ping An Insurance (601318 CH, -¥4.5) and Zijin Mining (601899 CH, -¥4.4), while Zhongji Innolight (300308 CH, +¥3.3), Gigadevice Semiconductor (603986 CH, +¥2.8), and Eoptolink Technology (300502 CH, +¥2.6) provided the largest positive contributions. On a stock level, Longi Green (601012 CH) saw the largest EPS upgrade at +102% month-on-month, followed by Tongwei (600438 CH) at +25.3%, while SERES (601127 CH) suffered the steepest cut at -86.8% with a concurrent revenue revision of -27.4%.

ZHONGJI INNOLIGHT (300308 CH) ZTE (000063 CH) ZHEJIANG HUAYOU COBALT (603799 CH) EOPTOLINK TECHNOLOGY (300502 CH) CHINA VANKE (000002 CH) SIEYUAN ELECTRIC (002028 CH)

Highlighted Stocks

ZHONGJI INNOLIGHT, ZTE, ZHEJIANG HUAYOU COBALT, EOPTOLINK TECHNOLOGY, CHINA VANKE, SIEYUAN ELECTRIC

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