Zheng Xing Xing Ye Ri Bao·2025-08-18 08:38Market Performance - The component sector increased by 1.99% on August 18, with Jing Sai Technology leading the gains [1] - The Shanghai Composite Index closed at 3728.03, up 0.85%, while the Shenzhen Component Index closed at 11835.57, up 1.73% [1] Top Gainers - Jing Sai Technology (871981) closed at 46.56, up 29.98% with a trading volume of 94,900 shares and a transaction value of 415 million [1] - Nanya New Materials (688519) closed at 65.17, up 20.00% with a trading volume of 166,400 shares and a transaction value of 1.061 billion [1] - Yuan Diwei (832491) closed at 33.80, up 14.97% with a trading volume of 212,400 shares [1] Other Notable Performers - Zhongfu Circuit (300814) closed at 50.65, up 10.37% with a trading volume of 330,800 shares and a transaction value of 1.668 billion [1] - Fangzheng Technology (600601) closed at 7.43, up 10.07% with a trading volume of 4.1409 million shares and a transaction value of 3.031 billion [1] Market Capital Flow - The component sector saw a net inflow of 688 million from institutional investors, while retail investors experienced a net outflow of 1.012 billion [2][3] - The top stocks by net inflow from institutional investors included Shengyi Technology (600183) with a net inflow of 2.53 billion [3] Decliners - ST Dongjing (002199) closed at 10.18, down 3.78% with a trading volume of 93,500 shares [2] - Aoshikang (002913) closed at 38.81, down 2.04% with a trading volume of 87,600 shares [2]