专业服务板块8月22日涨0.58%，苏试试验领涨，主力资金净流出7729.24万元

Market Overview - On August 22, the professional services sector rose by 0.58% compared to the previous trading day, with Su Shi Testing leading the gains [1] - The Shanghai Composite Index closed at 3825.76, up 1.45%, while the Shenzhen Component Index closed at 12166.06, up 2.07% [1] Stock Performance - Su Shi Testing (300416) closed at 17.30, with a gain of 2.67% and a trading volume of 334,200 shares, amounting to a transaction value of 578 million yuan [1] - Other notable performers included: - Electric Science Institute (300215) at 6.87, up 2.54% with a trading volume of 444,100 shares [1] - Shengke Nano (688757) at 34.02, up 2.50% with a trading volume of 43,100 shares [1] - Ancar Testing (300572) at 27.99, up 2.38% with a trading volume of 160,400 shares [1] Fund Flow Analysis - The professional services sector experienced a net outflow of 77.29 million yuan from institutional investors, while retail investors saw a net inflow of 36.84 million yuan [2] - Notable net inflows from retail investors included: - Su Shi Testing with a net inflow of 69.16 million yuan from institutional investors [3] - Shiheng Testing (301228) with a net inflow of 24.41 million yuan from institutional investors [3] Individual Stock Fund Flow - Su Shi Testing had a significant net inflow of 69.16 million yuan from institutional investors, but a net outflow of 82.85 million yuan from retail investors [3] - Other stocks with notable fund flows included: - Ancar Testing with a net inflow of 11.03 million yuan from institutional investors [3] - Electric Science Institute with a net inflow of 8.81 million yuan from institutional investors [3]