Group 1 - The article discusses the unexpected visit of President Trump to the Federal Reserve, marking the first time in nearly 20 years, which raises concerns about market reactions and potential implications for interest rates [1][3] - Trump's comments about reducing interest rates from 4.25% to 1% just before the July rate decision highlight the unpredictability and volatility in financial markets [3] - The phenomenon of "buy the rumor, sell the news" is emphasized, indicating that positive news often coincides with market peaks, suggesting a pattern of institutional investors positioning themselves ahead of retail investors [5][6] Group 2 - The article suggests that following quantitative data can provide insights into market movements, as institutional investors often make strategic moves before significant news breaks [8][10] - The example of oil prices and the stock "Tongyuan Petroleum" illustrates how institutions can set up positions well in advance of market events, demonstrating a methodical approach to investing [11][13] - The importance of using quantitative indicators to track institutional activity is highlighted, as these tools can reveal underlying market trends that are not immediately apparent from news headlines [15][16]