镇洋发展涨2.06%，成交额3107.05万元，主力资金净流入37.84万元

Group 1 - The core viewpoint of the news is that Zhenyang Development has shown significant stock price fluctuations and financial performance, with a notable increase in stock price this year but a recent decline in the short term [1][2] - As of September 9, Zhenyang Development's stock price increased by 64.12% year-to-date, but it has decreased by 9.35% in the last five trading days [1] - The company has a market capitalization of 6.125 billion yuan and reported a net inflow of 378,400 yuan from main funds on September 9 [1] Group 2 - Zhenyang Development operates in the basic chemical industry, specifically in the chlor-alkali sector, with its main business revenue composition being 53.07% from chlor-alkali products and 36.97% from PVC products [1][2] - For the first half of 2025, Zhenyang Development achieved operating revenue of 1.336 billion yuan, representing a year-on-year growth of 16.88%, while the net profit attributable to shareholders decreased by 52.63% to 50.626 million yuan [2] - The company has distributed a total of 676 million yuan in dividends since its A-share listing, with 426 million yuan distributed in the last three years [3]