Group 1 - The stock price of Zhenlan Instrument (301303) closed at 16.24 yuan on October 24, 2025, with no change, a turnover rate of 2.41%, a trading volume of 24,500 shares, and a transaction amount of 39.6899 million yuan [1] - The company primarily engages in the research, development, production, and sales of gas and water metering products and systems, and has also ventured into automotive parts, serving domestic car manufacturers [2] - The company does not directly participate in the marine economy sector, although its metering products may be applicable in industries related to marine oil and gas and coastal tourism [2] Group 2 - On October 24, the net outflow of main funds was 2.9818 million yuan, indicating a slight withdrawal by major investors, while retail and speculative funds saw a combined net inflow of 2.9818 million yuan, reflecting a positive market sentiment [2] - The breakdown of fund flows on October 24 shows a net outflow of 2.9818 million yuan from main funds, a net inflow of 1.6246 million yuan from speculative funds, and a net inflow of 1.3572 million yuan from retail investors [2]