Market Performance - The Tianjin Free Trade Zone concept index declined by 3.22%, ranking among the top declines in concept sectors as of April 28 [1] - Within the sector, Tianbao Infrastructure hit the daily limit down, while other notable decliners included Jintou City Development and Tianjin Printers [1] - Only two stocks within the sector saw price increases, with Youfa Group rising by 2.78% and Tianjin Port by 0.22% [1] Capital Flow - The Tianjin Free Trade Zone concept experienced a net outflow of 78 million yuan from main funds, with nine stocks seeing net outflows [1] - The stock with the highest net outflow was Bohai Chemical, with a net outflow of 17.03 million yuan, followed by Ruipu Biology and HNA Technology with outflows of 16.13 million yuan and 14.13 million yuan respectively [1] - Conversely, the stocks with the highest net inflows included Guifaxiang, Jiuan Medical, and Youfa Group, with inflows of 3.25 million yuan, 2.40 million yuan, and 1.13 million yuan respectively [1][2] Stock Performance - The top decliners in the Tianjin Free Trade Zone concept included Bohai Chemical (-4.82%), Ruipu Biology (-1.30%), and HNA Technology (-3.73%) [1] - Notable gainers included Youfa Group (+2.78%) and Tianjin Port (+0.22%) [1] - The trading volume for Bohai Chemical was 6.29%, indicating significant trading activity despite the decline [1]

| 代码 | 简称 | 今日涨跌幅 | 今日换手率 | 主力资金流量（万 | 主力资金净流入比率 | | --- | --- | --- | --- | --- | --- | | | | （%） | （%） | 元） | （%） | | 600310 | 广西能 源 | 9.98 | 14.22 | 21205.56 | 20.43 | | 600744 | 华银电 力 | 10.00 | 3.80 | 14871.61 | 50.52 | | 000883 | 湖北能 源 | 1.39 | 1.45 | 8923.37 | 18.98 | | 002366 | 融发核 电 | 5.16 | 12.01 | 5428.51 | 7.42 | | 000600 | 建投能 源 | 4.78 | 12.90 | 5148.33 | 5.45 | | 300185 | 通裕重 工 | 4.33 | 3.81 | 3991.73 | 12.09 | | 000767 | 晋控电 | 4.85 | 2.83 | 3130.48 | 13.68 | | --- | --- | --- | --- | --- | --- ...

Core Viewpoint - The PVDF concept sector has shown a significant increase of 1.84%, leading the market in terms of growth, with notable stocks such as Heimao Co., Jinming Precision Machinery, and Sanmei Co. experiencing substantial gains [1][2]. Market Performance - The PVDF concept sector ranked first in today's market performance, with 12 stocks rising, including Heimao Co. (+6.83%), Jinming Precision Machinery (+5.82%), and Sanmei Co. (+3.09%) [1][2]. - Other notable sectors included Noise Control (+1.57%) and Camping Economy (+1.54%), while sectors like Combustible Ice and Controlled Nuclear Fusion saw declines of -1.62% and -1.15%, respectively [2]. Capital Flow - The PVDF concept sector attracted a net inflow of 144 million yuan, with eight stocks receiving significant capital inflows. Heimao Co. led with a net inflow of approximately 52.89 million yuan [2][3]. - Other companies with notable net inflows included Juhua Co. (48.30 million yuan), Jinming Precision Machinery (22.38 million yuan), and Putailai (11.17 million yuan) [2][3]. Capital Inflow Ratios - Heimao Co., Jinming Precision Machinery, and Juhua Co. had the highest net inflow ratios at 11.43%, 10.01%, and 7.81%, respectively [3]. - The detailed capital inflow data for the top stocks in the PVDF concept sector indicates varying performance, with Heimao Co. showing a daily increase of 6.83% and a turnover rate of 5.21% [3].