轨交设备板块8月22日涨0.76%，必得科技领涨，主力资金净流出3.1亿元

Market Performance - On August 22, the rail transit equipment sector rose by 0.76% compared to the previous trading day, with Bidet Technology 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] Individual Stock Performance - Bidet Technology (605298) closed at 23.79, with a gain of 7.99% and a trading volume of 109,200 shares, amounting to a transaction value of 253 million yuan [1] - Other notable performers included: - Quanta Technology (301048) at 13.26, up 2.79% [1] - Times Electric (688187) at 48.04, up 2.69% [1] - China Railway Materials (000927) at 2.80, up 1.45% [1] Capital Flow Analysis - The rail transit equipment sector experienced a net outflow of 310 million yuan from institutional investors, while retail investors saw a net inflow of 274 million yuan [2] - The capital flow for individual stocks showed: - Bidet Technology had a net inflow of 33.29 million yuan from institutional investors [3] - Quanta Technology had a net inflow of 22.53 million yuan from institutional investors [3] - China Railway Materials had a net inflow of 21.78 million yuan from institutional investors [3]