Group 1 - The core viewpoint of the article emphasizes the long-term upward trend of stock indices, driven by corporate earnings growth, which ultimately supports index stability and growth [3][6]. - The Shanghai Composite Index has shown significant fluctuations over the years, with historical lows during bear markets, such as around 1,000 points in 2012-2014, 2,500 points in 2018, and around 3,000 points in recent years, indicating a gradual increase in the bear market bottom points [4][5]. - The article highlights that the CSI 300 and CSI 500 indices, which invest in both Shanghai and Shenzhen stocks, reflect a broader market trend, with the overall market index exceeding 4,000 points when including stocks from both exchanges [4][5]. Group 2 - The long-term growth of indices provides a solid foundation for investing in index funds, as it is primarily driven by corporate earnings growth, which is viewed as a "base salary" from the market [6]. - In the event of a bull market, there is potential for significant short-term valuation increases, allowing investors to benefit from both earnings growth and valuation expansion, described as "extra bonuses" from the market [6]. - The article notes that from 2004 to December 2025, the index has risen from 1,000 points to approximately 5,700 points, with dividends potentially pushing the total to 6,000-7,000 points, indicating a strong long-term performance of the market [5].