On June 9, the stock market exhibited a strengthening trend amidst day-long fluctuations. The Shanghai Composite Index successfully rebounded above the 4,000-point threshold, while the Growth Enterprise Index approached a remarkable 4% gain in the final hours of trading. In terms of individual stock performance, the number of advancing stocks outnumbered those declining, with roughly 3,300 stocks rising across the Shanghai, Shenzhen, and Beijing markets. Total trading volume for the day reached 2.67 trillion yuan. By the market close, the Shanghai Composite Index had climbed 1.28%, the Shenzhen Component Index had risen by 3.02%, and the Growth Enterprise Index had surged by 3.93%. From a sector perspective, semiconductors, memory chips, printed circuit boards (PCBs), co-packaged optics (CPOs), and related segments led the gains. Conversely, coal, oil and gas, liquor, and retail sectors experienced declines. Semiconductor chip stocks demonstrated robust performance overall, with multiple stocks, including National Silicon Industry Group, Bright Power Semiconductor, and MacroMicro Technology, hitting their daily price limits. Computing hardware stocks, encompassing PCBs and optical fibers, also witnessed significant rallies. Hengtong Optic-Electric not only hit its daily limit but also reached a new all-time high. Additionally, several stocks, such as Jin'an Guoji and Shengyi Technology, were locked in the upper circuit (reached their daily price limits). In contrast, the oil and gas and coal sectors underperformed, with Tongyuan Petroleum and Datong Energy both plummeting more than 9%.