基础建设板块9月25日跌0.88%，诚邦股份领跌，主力资金净流出6.18亿元

Market Overview - On September 25, the infrastructure sector declined by 0.88%, with Chengbang Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3853.3, down 0.01%, while the Shenzhen Component Index closed at 13445.9, up 0.67% [1] Stock Performance - Notable gainers in the infrastructure sector included: - ST Lingnan (002717) with a closing price of 1.60, up 5.26% [1] - ST IF Ping (603843) with a closing price of 4.69, up 4.92% [1] - Jiaojian Co., Ltd. (603815) with a closing price of 13.21, up 4.84% [1] - Major decliners included: - Chengbang Co., Ltd. (603316) with a closing price of 12.74, down 8.48% [2] - Xinjiang Jiaojian (002941) with a closing price of 15.28, down 5.39% [2] - Beixin Luqiao (002307) with a closing price of 4.43, down 4.32% [2] Capital Flow - The infrastructure sector experienced a net outflow of 618 million yuan from institutional investors, while retail investors saw a net inflow of 298 million yuan [2] - The capital flow for key stocks showed: - Jiaojian Co., Ltd. had a net outflow of 36.84 million yuan from institutional investors [3] - ST Lingnan had a net inflow of 24.19 million yuan from institutional investors [3] - Dongzhu Ecology (603359) had a net inflow of 15.63 million yuan from institutional investors [3]