March 12 Capital Flow: Three-An Optoelectronics Leading, 10 Stocks Receive Net Capital Inflow Exceeding 100 Million Yuan

According to the latest Choice data, on March 12, the A-share market showed a significant divergence in capital flows, with Sanan Optoelectronics leading the market with a single-day net inflow of 1.364 billion yuan. Among the top ten stocks by net capital inflow that day, semiconductor, non-ferrous metals, and technology companies dominated, reflecting ongoing market focus on high-end manufacturing and resource sectors.

Specifically, aside from Sanan Optoelectronics, China Aluminum ranked second with a net inflow of 820 million yuan, while Tsinghua Unigroup and Hanggang Steel received 670 million yuan and 590 million yuan respectively. Technology firms such as Sugon and Guangxun Technology also made the top ten, indicating capital allocation toward digital economy infrastructure. Notably, Hebang Bio, representing the chemical industry, entered the list for the first time with a net inflow of 430 million yuan.

From an industry distribution perspective, the semiconductor supply chain continued its strong performance. As a leading LED chip manufacturer, Sanan Optoelectronics’ capital attraction resonated with the industry’s recovery. The non-ferrous metals sector benefited from rising global inflation expectations, with cyclical stocks like China Aluminum gaining support from both northbound funds and retail investors. In the tech sector, companies such as Sugon and China Science & Technology benefited from the advancement of the “East Data West Computing” project, becoming key targets for institutional rebalancing.

Market analysts pointed out that current capital flows exhibit a dual main line of “hard technology + pro-cyclicality.” As the annual report disclosure season approaches, growth stocks with strong performance support and cyclical stocks with valuation recovery are balancing capital allocation. Data shows that the net outflow of main funds from the Shanghai and Shenzhen markets narrowed by 37% compared to the previous day, indicating a gradual stabilization of market sentiment and the continuous emergence of structural opportunities.