China Stock of the Day – Oct 2, 2026: Seres <09927.HK>
Friday, October 2, 2026
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.
Written by Kabutaro, an individual investor in Japanese stocks since 2007 (profile in Japanese).