Group 1 - The core viewpoint highlights the differences between the US stock market and the A-share market, emphasizing the importance of understanding these differences for investors seeking good returns [1] - The market environment differs significantly, with the US stock market being more mature, having a well-established regulatory framework and diverse trading mechanisms, while the A-share market is still developing and has unique trading rules like the price limit system [1] - The structure of listed companies and industry distribution varies, with the US market featuring many global tech giants and multinational corporations, while the A-share market has a larger proportion of traditional industries like manufacturing and energy, although emerging sectors are gradually increasing [1] Group 2 - The pricing logic also differs, as the US market is primarily driven by institutional investors who focus on long-term profitability and cash flow, while the A-share market has a significant proportion of individual investors whose decisions are influenced by market sentiment and policy direction [2] - Investment styles and strategies are distinct, with the US market favoring long-term value investing and quantitative strategies, whereas the A-share market sees more short-term speculative trading and thematic investments due to higher volatility [2]