[Afternoon Commentary: The Science and Technology Innovation 50 Index rose 4.5% in half a day, and the computing hardware and semiconductor industry chains collectively strengthened] On September 16, the market fluctuated and rebounded in early trading, with the GEM index rising by more than 2%. The half-day turnover of the Shanghai and Shenzhen stock markets was 1.17 trillion, 108.2 billion higher than the previous trading day. More than 4,200 stocks across the market rose. On the market, hot spots rotated rapidly, and the computing power hardware concept fluctuated and rose. PCB Aohong Electronics 4-link board, Zhongyan Dadi and Weigao hit the daily limit; fiber optic concepts were active, Huamai Technology and Yongding shares hit the daily limit; CPO Dongtian slightly increased by more than 10% to hit a record high, Guangxun Technology hit the daily limit; the semiconductor materials sector strengthened during the session, Zhongjing Technology 2-link board, Youyan Silicon and Youyan New Materials hit the limit. On the downside, the construction machinery sector fluctuated and adjusted, with Sany Heavy Industry approaching its daily limit, and Shantui Co., Ltd., Liugong, and Hengli Hydraulics following the decline. As of the close, the Shanghai Stock Exchange Index rose 0.57%, the Shenzhen Component Index rose 1.42%, and the ChiNext Index rose 2.35%.