轨交设备板块10月17日跌2.8%，永贵电器领跌，主力资金净流出3.73亿元

Core Insights - The rail transit equipment sector experienced a decline of 2.8% on October 17, with Yonggui Electric leading the drop [1] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Sector Performance - Yonggui Electric (300351) closed at 17.30, down 7.59% with a trading volume of 253,400 shares [1] - XD Times New (600458) closed at 14.52, down 6.92% with a trading volume of 281,100 shares [1] - Times Electric (688187) closed at 54.77, down 5.54% with a trading volume of 104,100 shares [1] - Other notable declines include Xianghe Industrial (603500) down 4.68% and Kanni Electromechanical (603111) down 4.18% [1] Capital Flow - The rail transit equipment sector saw a net outflow of 373 million yuan from institutional investors, while retail investors contributed a net inflow of 211 million yuan [1] - The table of capital flow indicates that Tianzhizhi Material (688033) had a net inflow of 911,400 yuan from institutional investors, but a net outflow of 1,772,150 yuan from retail investors [2] - Gongda Gaoke (688367) experienced a net inflow of 667,140 yuan from institutional investors, but a net outflow of 527,830 yuan from retail investors [2]