Group 1 - The article emphasizes the importance of not being swayed by news and emotional reactions in investment decisions, advocating for the use of quantitative data to guide actions [1][2][6] - It highlights that market movements are often influenced by underlying fund activities rather than surface-level news, suggesting that investors should focus on data to avoid making impulsive decisions [1][6] - The concept of "institutional inventory" is introduced, indicating that even during price declines, active institutional participation can signal a potential rebound, contrasting with situations where institutions withdraw [6][9] Group 2 - The article warns against the misconception that price rebounds are always reliable indicators of future performance, stressing the need to verify institutional involvement before making investment decisions [9][14] - It discusses the pitfalls of chasing rebounds without understanding the underlying support from institutional funds, which can lead to losses if the rebound lacks solid backing [14] - The narrative concludes by advocating for a disciplined investment approach that relies on quantitative data to maintain a stable mindset and avoid emotional trading [12][14]