大跳水！原因，找到了！

Market Overview - The market experienced a significant drop despite the Federal Reserve's interest rate cut of 25 basis points, with the Shanghai Composite Index falling by 1.15% and the ChiNext Index dropping by 1.64% [2][3]. Stock Performance - A total of 1027 stocks rose while 4350 stocks declined, with 64 stocks hitting the daily limit up [4][5]. - Notable gainers included tourism stocks such as Yunnan Tourism (002059) and Qujiang Cultural Tourism (600706), both reaching their daily limit up [6][7]. - CPO and computing hardware stocks were active, with Dekeli and Changfei Optical Fiber (601869) also hitting their daily limit up [8][9]. - Semiconductor stocks saw a brief surge, with companies like Zhongwei Company and Saiwei Microelectronics rising over 10% before retreating [10][11]. - Conversely, gold stocks collectively fell, with Xiaocheng Technology (300139) dropping over 8% [12][13]. - Brokerage and fintech stocks experienced adjustments, with Guosheng Financial Holdings (002670) and Changcheng Securities (002939) both declining over 6% [14][15]. Reasons for Market Movement - The Federal Reserve's interest rate cut led to profit-taking by investors who had seen rapid gains in the market [16]. - There were unusual trading patterns observed in brokerage stocks, with significant sell orders impacting prices, particularly in stocks like CITIC Securities [16].