Zheng Xing Xing Ye Ri Bao·2025-10-23 08:21Core Insights - The professional services sector experienced a rise of 2.39% on October 23, with Guolai Testing leading the gains [1] - The Shanghai Composite Index closed at 3922.41, up 0.22%, while the Shenzhen Component Index closed at 13025.45, also up 0.22% [1] Sector Performance - Guolai Testing (301289) saw a significant increase of 20.00%, closing at 66.47 with a trading volume of 75,300 shares and a transaction value of 465 million [1] - Lihua Technology (002243) rose by 9.97%, closing at 9.93 with a trading volume of 989,300 shares and a transaction value of 978 million [1] - Guangdong Construction Science (301632) increased by 7.68%, closing at 31.98 with a trading volume of 193,700 shares and a transaction value of 602 million [1] Capital Flow - The professional services sector saw a net inflow of 205 million from institutional investors, while retail investors experienced a net outflow of 104 million [2] - The main stocks with significant net inflows included Lihua Technology (13.44% net inflow) and Guolai Testing (16.91% net inflow) [3]