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Over 2.6 billion yuan in major capital exits optical module leader this week, shifting to chips and auto sectors
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According to a report from 21st Century Business Herald, main capital (major investor funds) in China's A-share market rotated out of optical module and chip packaging/testing concept stocks this week, flowing into domestic chip and automotive sectors. PCB leader Shengyi Technology led the market with net inflows of 1.547 billion yuan, rising 2.48% for the week. Automaker Jianghuai Automobile followed with 1.476 billion yuan in net inflows, surging 19.12% over three consecutive days. The company issued a stock trading abnormality announcement on September 23, stating the price deviation exceeded 20% in three days but found no undisclosed material information. AI computing chip leader Haiguang Information attracted 1.163 billion yuan, up 2.87%. Conversely, optical module leader Tianfu Communication saw the largest net outflow of 2.603 billion yuan, falling 5.88% for the week, though its year-to-date gain remains 85.41%. Dongshan Precision, Huatian Technology, and other stocks also experienced significant outflows.
Source report
This week, major capital flows moved away from optical module and chip packaging & testing (OSAT) concept stocks, rotating into sectors such as domestic chips and automobiles.
Top Inflows
PCB leader Shenghong Technology topped the market with a net capital inflow of 1.547 billion yuan, posting a weekly gain of 2.48%. On September 24, the stock fell 4.75%, closing with a market capitalization of 223.5 billion yuan.
Auto OEM leader Jianghuai Automobile followed closely, attracting a net inflow of 1.476 billion yuan. The stock recorded three consecutive gains this week, surging 19.12%. On the evening of September 23, Jianghuai Automobile issued an announcement regarding abnormal stock trading fluctuations, stating that the cumulative deviation of daily closing price increases exceeded 20% over three consecutive trading days, constituting abnormal trading activity. After an internal review, the company stated that there were no undisclosed material matters.
Notably, on September 11, Jianghuai Automobile hit an intraday low of 18.59 yuan, marking a new low for the year. This represents a decline of over 68% from its high of 58.79 yuan in February 2026.
AI computing chip leader Haiguang Information also attracted 1.163 billion yuan in major capital, rising 2.87% for the week.
Additionally, Honghe Technology and Guangzhi Technology each saw net inflows exceeding 1 billion yuan. Guangzhi Technology posted an impressive weekly gain of 20.72%. Biwin Storage, Dekeli, Guoci Materials, Dongcai Technology, and Woge Optoelectronics all recorded net inflows exceeding 700 million yuan.
Major Outflows
This week, optical module and OSAT concept stocks faced significant selling pressure.
Optical module leader Tianfu Communication recorded the largest net outflow of 2.603 billion yuan, falling 5.88% for the week. Its current market capitalization stands at 292.3 billion yuan, though its year-to-date gain remains at 85.41%.
Dongshan Precision saw a net outflow of 2.522 billion yuan, declining 5.18% for the week. OSAT leader Huatian Technology recorded a net outflow of 2.418 billion yuan.
Other notable sell-offs include:
- Luobotek, Yuanjie Technology, and Changdian Technology: each with net outflows exceeding 1.7 billion yuan
- Zhongji InnoLight, Foxconn Industrial Internet, China Jushi, and Zijin Mining: all heavily sold, each declining over 3% for the week
Source
21世纪经济报道Regional
Part of this Story
A-Share Capital Rotates from Optical Modules to Chips and Auto Stocks, PCB Leader Tops Inflows