IPO监管趋严，量化数据洞察炒作行为变化

Group 1 - The core point of the article highlights a significant improvement in the regulatory environment, with a complete turnaround in the trend of companies withdrawing their IPO applications, achieving a zero withdrawal rate among the 20 companies inspected this year [1] - The on-site inspection termination rate has decreased from over 80% in previous years to 50%, indicating a stricter regulatory approach that emphasizes accountability from the moment of application [1] - Despite the improved regulatory landscape, ordinary investors still face confusion due to market volatility, where seemingly stable stocks may suddenly decline, and those expected to rebound may continue to weaken [1] Group 2 - The article discusses the phenomenon of visual bias in market trends, where investors often misinterpret price movements based on past performance, leading to incorrect predictions [3] - It illustrates two different stocks with contrasting outcomes despite similar high-level fluctuations, emphasizing the difficulty in predicting results based solely on visual trends [7] - The core reason for differing stock outcomes lies in the trading behavior of institutional investors, which is often not visible to ordinary investors but can be analyzed through quantitative data [9] Group 3 - By comparing the "institutional inventory" data of two stocks, it becomes clear that active participation from institutional funds correlates with positive price movements, while a lack of such participation leads to negative outcomes [11] - The article provides examples of two stocks with different trading behaviors, where one stock shows active institutional involvement despite frequent fluctuations, while the other lacks such participation during apparent rebounds [13] - The emphasis is placed on the importance of using quantitative data to establish an objective investment perspective, allowing investors to avoid being misled by superficial market movements [13]