Group 1 - The article emphasizes that funds are very suitable investment products for ordinary people [2] - It suggests that new investors should consider what type of funds are more appropriate for them [2] - The article promotes a free course designed to help new investors understand fund investment from scratch [2] Group 2 - The article explains the concept of price-to-earnings (P/E) ratio, detailing its calculation as market value divided by earnings [4] - It discusses two dimensions of P/E ratio calculation: whether to include loss-making companies and the time frame of earnings [4][5] - The article defines three types of P/E ratios: static P/E (based on last year's earnings), dynamic P/E (based on next year's earnings), and trailing twelve months (TTM) P/E (based on the most recent four quarters of earnings) [6] - It notes that TTM P/E is commonly used for valuation updates with each quarterly financial report [6]