Quantitative Research

A-share Margin Trading Weekly (Aug 21st): COSCO SHIPPING, EAST MONEY INFORMATION, Mindray, CNOOC

21 Aug 2026 By Ke Yan, CFA
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Abstract: We analyzed A-share margin trading positions for stocks with market cap of at least USD 500m as of August 21st. The aggregated net margin trading position stood at USD 356,345m, down 0.3% from USD 357,520m the prior week, outperforming the CSI 300 index which declined 1.0%. Net buying breadth was positive, with 1,799 stocks seeing margin loan positions increase versus 1,182 seeing decreases. On the sell side, the largest weekly decreases in net margin positions were in PING AN INSURANCE (down USD 198m), COSCO SHIPPING (down USD 97m, or 16.5%), CNOOC (down USD 96m, or 23.6%), and Mindray (down USD 73m, or 7.4%). On the buy side, ZHONGJI INNOLIGHT led inflows with a USD 326m increase (up 4.8%), followed by HYGON INFORMATION TECHNOLOGY (up USD 253m, or 22.0%) and EAST MONEY INFORMATION (up USD 111m, or 5.2%).

CHENGDU XUGUANG ELECTRONICS (600353 CH) CNOOC (600938 CH) Mindray (300760 CH) COSCO SHIPPING (601919 CH) EAST MONEY INFORMATION (300059 CH)

Highlighted Stocks

CHENGDU XUGUANG ELECTRONICS, CNOOC, Mindray, COSCO SHIPPING, EAST MONEY INFORMATION

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