Core Viewpoint - The Chinese stock market experienced a significant drop despite the favorable news of a 25 basis point interest rate cut by the Federal Reserve, indicating a potential profit-taking behavior among investors after a rapid market rise [2][15]. Market Performance - On September 18, the A-share market saw the Shanghai Composite Index rise close to 3900 points in the morning but fell sharply in the afternoon, with the index dropping over 2% at one point. By the end of the day, the Shanghai Composite Index closed down 1.15%, the Shenzhen Component down 1.06%, and the ChiNext Index down 1.64% [2]. - A total of 1027 stocks rose, with 64 hitting the daily limit up, while 4350 stocks declined [3][4]. Sector Performance - Tourism stocks performed well against the market trend, with Yunnan Tourism and Qujiang Cultural Tourism hitting the daily limit up [5][6]. - CPO and computing hardware stocks were active, with Dekeli and Changfei Optical Fiber reaching the daily limit up [7][8]. - Semiconductor stocks initially surged but then retreated, with Zhongwei Company and Saiwei Microelectronics rising over 10% [9][10]. - Gold stocks collectively declined, with Xiaocheng Technology dropping over 8% [11][12]. - Brokerage and fintech stocks also faced adjustments, with Guosheng Financial Holdings and Changcheng Securities both declining over 6% [13][14]. Reasons for Market Drop - The Federal Reserve's interest rate cut led to profit-taking by investors due to previous rapid market gains. Additionally, unusual selling pressure was observed in brokerage stocks, indicating potential market instability [15].