电子化学品板块7月31日跌1.53%，容大感光领跌，主力资金净流出7.95亿元

Market Performance - The electronic chemicals sector declined by 1.53% on July 31, with Rongda Photoelectric leading the drop [1] - The Shanghai Composite Index closed at 3573.21, down 1.18%, while the Shenzhen Component Index closed at 11009.77, down 1.73% [1] Stock Performance - Siquan New Materials (301489) saw a significant increase of 20.00%, closing at 103.66 with a trading volume of 66,300 shares and a transaction value of 667 million [1] - Tiancheng Technology (688603) increased by 1.97%, closing at 65.26 with a trading volume of 98,000 shares and a transaction value of 659 million [1] - Other notable performances include Tongyu New Materials (301630) up by 0.91%, Guanghua Technology (002741) up by 0.61%, and Zhongshi Technology (300684) up by 0.50% [1] Capital Flow - The electronic chemicals sector experienced a net outflow of 795 million from institutional investors, while retail investors saw a net inflow of 851 million [3] - Speculative funds had a net outflow of 56.71 million [3]