Market Overview - On August 13, the Shanghai Composite Index rose by 0.48%, with the total margin trading balance reaching 20,462.51 billion yuan, an increase of 11.718 billion yuan compared to the previous trading day [1] - The margin trading balance in the Shanghai market was 10,388.87 billion yuan, up by 3.431 billion yuan; in the Shenzhen market, it was 10,007.46 billion yuan, an increase of 8.254 billion yuan; and in the Beijing Stock Exchange, it was 6.618 billion yuan, up by 0.033 billion yuan [1] Industry Analysis - Among the industries classified by Shenwan, 26 industries saw an increase in margin trading balances, with the non-bank financial sector leading with an increase of 2.313 billion yuan, followed by the communication and pharmaceutical industries, which increased by 1.903 billion yuan and 1.706 billion yuan, respectively [1] Stock Performance - A total of 2,028 stocks experienced an increase in margin trading balances, accounting for 54.59% of the total, with 435 stocks showing an increase of over 5% [1] - The stock with the highest increase in margin trading balance was Xin'an Clean, with a latest balance of 8.9101 million yuan, reflecting a 100.64% increase compared to the previous trading day, and its stock price rose by 3.85% [1] - Other notable stocks with significant increases in margin trading balances included C Guangjianke and Bond Shares, with increases of 91.40% and 79.54%, respectively [1] Top Gainers and Losers - Among the top 20 stocks with the highest increase in margin trading balances, the average increase in stock prices was 8.78%, with C Guangjianke, Tongguan Copper Foil, and Jin Chengzi leading with increases of 28.20%, 20.02%, and 20.01%, respectively [2] - Conversely, the stocks with the largest declines included Meibang Technology, Geli'er, and Polijie, with declines of 1.55%, 1.18%, and 0.32%, respectively [2] Margin Trading Balance Changes - The top 20 stocks with the highest increases in margin trading balances included: - C Guangjianke: 9,514.23 million yuan, up 91.40%, with a stock price increase of 28.20% [3] - Bond Shares: 1,309.92 million yuan, up 79.54%, with no change in stock price [3] - In contrast, the stocks with the largest decreases in margin trading balances included: - Tianfangbiao: 1,087.23 million yuan, down 35.47%, with a stock price decline of 3.76% [5] - Boxin Biological: 373.22 million yuan, down 31.18%, with a stock price decline of 1.90% [5]