十年新高？

Group 1 - The article discusses the recent performance of the Shanghai Composite Index, highlighting a trading volume of 476.3 million and a total transaction amount of 691.787 billion, indicating significant market activity [1] - The index reached a high of 3738.59 and a low of 3702.38, with a closing price of 3738.28, reflecting a 1.12% increase from the previous close of 3696.77 [1] - The price-to-earnings ratio is noted to be around 16.0, while the price-to-book ratio stands at 1.47, suggesting a valuation perspective on the index [1] Group 2 - The article raises questions about whether the current market highs are sustainable or if they are driven by leading technology companies, indicating a focus on sector performance [3]