专业服务板块11月7日跌1.29%，安车检测领跌，主力资金净流出2.26亿元

Market Overview - The professional services sector experienced a decline of 1.29% on November 7, with Ancar Detection leading the drop [1] - The Shanghai Composite Index closed at 3997.56, down 0.25%, while the Shenzhen Component Index closed at 13404.06, down 0.36% [1] Stock Performance - Notable gainers in the professional services sector included: - Lansheng Co., Ltd. (600826) with a closing price of 11.54, up 3.04% [1] - Electric Science Institute (300215) with a closing price of 6.60, up 1.07% [1] - Major decliners included: - Ancar Detection (300572) with a closing price of 30.18, down 14.02% [2] - Shicun Detection (301228) with a closing price of 26.24, down 6.69% [2] Trading Volume and Capital Flow - The professional services sector saw a net outflow of 226 million yuan from institutional investors, while retail investors had a net inflow of 140 million yuan [2] - The total trading volume for Lansheng Co., Ltd. was 188,100 shares, with a transaction value of 216 million yuan [1] - Ancar Detection had a trading volume of 235,200 shares, with a transaction value of 746 million yuan [2] Capital Inflow Analysis - Lansheng Co., Ltd. had a net inflow of 36.58 million yuan from institutional investors, while retail investors showed a net outflow of 24.27 million yuan [3] - Electric Science Institute experienced a net inflow of 5.29 million yuan from retail investors, despite a net outflow of 12.23 million yuan from institutional investors [3]