第一财经·2025-08-18 15:49Core Viewpoint - The A-share market has reached a significant milestone, with the total market capitalization surpassing 100 trillion yuan for the first time, reflecting a strong upward trend in stock prices and overall market performance [3][5]. Market Performance - As of August 18, the Shanghai Composite Index closed at 3728.03 points, up 0.85%, marking a 10-year high. The Shenzhen Component Index rose by 1.73%, and the ChiNext Index increased by 2.84%, with over 4000 stocks gaining [3]. - The total trading volume in the A-share market exceeded 2.8 trillion yuan, ranking as the third highest in history [3]. Market Capitalization Breakdown - The top 10 companies by market capitalization include Agricultural Bank of China (2.21 trillion yuan), Industrial and Commercial Bank of China (2.03 trillion yuan), and Kweichow Moutai (1.79 trillion yuan), among others [3][4]. - The combined market capitalization of the top 10 companies reached 13.32 trillion yuan, an increase of 1.22 trillion yuan since the beginning of the year [5]. Sector Analysis - The banking sector leads the A-share market with a total market capitalization of 11.12 trillion yuan, having increased by approximately 1.7 trillion yuan since the start of the year. The six major banks account for about 6.74 trillion yuan of this total [5]. - The electronics sector follows, with an increase of 2.5 trillion yuan in market capitalization this year, leading among other industry sectors [5]. Historical Context - A decade ago, only two companies had a market capitalization exceeding 1 trillion yuan, namely China Petroleum and Industrial and Commercial Bank of China. Currently, there are 17 companies with market capitalizations above 500 billion yuan [5]. - The top 10 companies in terms of market capitalization a decade ago were predominantly from the financial and traditional energy sectors, with a significant shift observed in the current rankings [5][6]. Recent Changes in Rankings - The top 10 companies have undergone a reshuffle, with China Shenhua dropping out and Industrial Fulian rising to the 9th position. Agricultural Bank of China has surpassed Industrial and Commercial Bank of China to become the largest by market capitalization [6].