China Stock of the Day

Zizhu Hi-Tech <002058>, a company whose main business is aluminum-plastic film used as packaging for lithium-ion battery cells, was the Chinese stock most talked about online on October 9, 2026.
Background: Solid-state battery stocks were bought again in A-shares on October 9, and the stock was locked at its daily limit from the open, marking a fourth consecutive daily limit-up. The share price was 24.44 yuan, with a market capitalization of about 3.5 billion yuan. Almost no sellers emerged, and turnover was only 93.03 million yuan. The catalyst was the "15th Five-Year Plan for the Development of the New-Type Battery Industry" released on September 28 by seven departments including the Ministry of Industry and Information Technology. However, the company cautioned in an announcement that its business related to all-solid-state batteries is still at an early stage of research and development, and that the timing of commercialization and stable revenue is highly uncertain. In the first half of 2026, revenue was 382 million yuan, and net profit attributable to shareholders fell 91.01% to 16.5976 million yuan.

Liaoning Shidai Wanheng <600241>, a Liaoning-based company that makes lithium-ion batteries for power tools and other uses, was the Chinese stock most talked about online on October 8, 2026.
Background: On October 8, the first trading day after the National Day holiday, A-shares fell sharply, with the STAR 50 Index down 4.82% and the ChiNext Index down 3.15% as tech stocks were sold. Battery stocks bucked the trend, and the stock hit its daily limit at 10.69 yuan (+9.98%) for a fourth consecutive daily limit-up. The catalyst was the "15th Five-Year Plan for the Development of the New-Type Battery Industry," released on September 28 by seven departments including the Ministry of Industry and Information Technology. On the other hand, the company issued an announcement on the evening of September 30 warning of the risk of a rapid decline after the sharp rise. In the first half of 2026, revenue rose 38.42% to 248 million yuan, but net profit attributable to shareholders swung to a loss of 12.4599 million yuan due to a sharp drop in gross margin in its lithium battery business.

Weichai Power <02338.HK>, a major diesel engine maker based in Weifang, Shandong Province, was the Chinese stock most talked about online on October 7, 2026.
Background: With mainland markets closed for the National Day holiday, the Hang Seng Index fell 0.62% to 24,130.5 in Hong Kong on October 7, and AI-related hardware stocks were sold. Against that backdrop, the stock rose 4.68% to 30.86 Hong Kong dollars, the top gainer among Hang Seng Index constituents. The catalyst was a price-target increase from JPMorgan, which kept its Overweight rating and raised its target from 55 to 57 Hong Kong dollars. JPMorgan cited a favorable shipment outlook, resilient margins, accelerating growth in power supply for AI data centers, and progress in commercializing solid oxide fuel cells (SOFC).

CanSino Biologics <06185.HK>, a vaccine maker based in Tianjin, was the Chinese stock most talked about online on October 6, 2026.
Background: With mainland markets closed for the National Day holiday, pharmaceutical and biotech stocks rallied in Hong Kong on October 6, and the company's Hong Kong-listed shares closed up 14.04% at 40.60 Hong Kong dollars. The Hang Seng Biotech Index rose 3.21% to a year-to-date high. One trigger came from the U.S., where vaccine developer Vaxcyte released positive trial data for its pneumococcal vaccine and its shares jumped 30%, lifting expectations for vaccine stocks. In addition, 31 of the 96 breakthrough abstracts to be presented at the European Society for Medical Oncology (ESMO) Congress on October 23-27 reportedly involve drugs from Chinese companies, boosting confidence in Chinese innovative drugs. The company's Shanghai-listed shares had also hit their daily limit on September 30.

Kingboard Laminates <01888.HK>, a major Hong Kong maker of copper-clad laminates used as the base material for printed circuit boards, was the Chinese stock most talked about online on October 5, 2026.
Background: With mainland markets closed for the National Day holiday, printed circuit board (PCB) stocks rose across the board in Hong Kong on October 5, and the stock closed up 11.94% at 55.30 Hong Kong dollars. Group company Kingboard Holdings also gained 8.36%. U.S. nonfarm payrolls rose by only 29,000 in September, far below expectations, dampening expectations of an October rate hike and lifting U.S. tech stocks; following that move, buying concentrated in semiconductor and PCB stocks with strong AI-related demand. The company has issued seven price-increase notices this year, and price hikes are spreading from raw materials to copper-clad laminates and PCBs, with Taiwan's Nan Ya Plastics raising prices by 20% from September. Brokerages noted that AI-related PCB companies have strong orders and are running at full capacity.

Seres <09927.HK>, a Chongqing-based automaker that builds electric vehicles under the AITO brand in partnership with Huawei, was the Chinese stock most talked about online on October 2, 2026.
Background: On October 2, the first Hong Kong trading day after the National Day holiday, the stock rose more than 16% at one point and closed up 6.44% at 37.34 Hong Kong dollars. With mainland markets closed and no southbound funds flowing in, the Hang Seng Index fell 2.60% to 23,972.29, its biggest drop since March 23, making the stock's gain stand out. The catalyst was a new five-year strategic cooperation agreement signed by the company and Huawei on September 30, which dispelled market speculation that the partnership might be dissolved. Under the new agreement, the AITO brand will be run exclusively under the company's leadership, with the company handling product definition, design, sales channels, and service, while Huawei provides technical support.