Zheng Xing Xing Ye Ri Bao·2025-08-19 08:32Market Overview - The semiconductor sector experienced a decline of 1.04% on August 19, with Chipmotion Technology leading the drop [1] - The Shanghai Composite Index closed at 3727.29, down 0.02%, while the Shenzhen Component Index closed at 11821.63, down 0.12% [1] Top Gainers in Semiconductor Sector - DiAo Microelectronics (688381) saw a significant increase of 20.00%, closing at 29.76 with a trading volume of 329,300 shares and a transaction value of 922 million [1] - Chip Origin Technology (688521) rose by 13.39%, closing at 127.28 with a trading volume of 286,500 shares and a transaction value of 3.593 billion [1] - Other notable gainers include: - Saiwei Electronics (300456) up 11.69% to 26.09 [1] - Jing Sheng Technology (688478) up 8.74% to 41.80 [1] - Canxin Technology (688691) up 6.04% to 77.60 [1] Top Losers in Semiconductor Sector - Chipmotion Technology (688582) led the losses with a decrease of 8.45%, closing at 79.65 with a trading volume of 202,800 shares and a transaction value of 1.646 billion [2] - Other significant decliners include: - Shanghai HePin (688584) down 7.72% to 25.21 [2] - Tailin Microelectronics (688591) down 6.67% to 50.68 [2] - Astone Technology (300706) down 6.03% to 48.75 [2] Capital Flow Analysis - The semiconductor sector saw a net outflow of 6.954 billion from institutional investors, while retail investors contributed a net inflow of 5.405 billion [2] - The capital flow for key stocks includes: - Chip Origin Technology (688521) with a net inflow of 293 million from institutional investors [3] - DiAo Microelectronics (688381) with a net inflow of 153 million from institutional investors [3] - Saiwei Electronics (300456) with a net inflow of 139 million from institutional investors [3]