Core Viewpoint - The A-share market's margin trading balance has reached a historic high, surpassing 2.4 trillion yuan, indicating a strong upward trend in market activity [2][3]. Group 1: Margin Trading Balance Growth - As of September 17, 2025, the total margin trading balance in the A-share market reached 24,054 billion yuan, marking a single-day increase of approximately 12.8 billion yuan and achieving nine consecutive days of growth [3]. - Since August 2025, the margin trading balance has rapidly increased, breaking through several key thresholds: 20 trillion yuan on August 5, 21 trillion yuan on August 18, 22 trillion yuan on August 26, 23 trillion yuan on September 8, and finally 24 trillion yuan on September 17 [5]. - The cumulative increase in margin trading balance this year has exceeded 500 billion yuan, with significant contributions from the last two months: approximately 276.5 billion yuan in August and about 144.1 billion yuan in September [5]. Group 2: Trading Volume and Market Proportions - The daily margin trading volume has remained high, with a recorded trading volume of 284.3 billion yuan on September 17, 2025, exceeding 200 billion yuan for 26 consecutive trading days, significantly higher than the same period last year [5]. - Despite the growth in margin trading balance, its proportion relative to the A-share market's circulating market value remains stable at 2.51%, which is slightly elevated compared to recent averages but still far from historical peaks [6]. - The proportion of margin trading volume to total A-share trading volume was 11.83% on September 17, 2025, consistent with recent averages, while historical peaks exceeded 20% during 2015 [6].