Group 1 - The stock price of Deepwater Survey Institute closed at 34.10 yuan on August 22, down 2.01% from the previous trading day [1] - During the day, there was a quick rebound, with a price of 33.72 yuan at 13:04, showing an increase of over 2% within 5 minutes [1] - The company is part of the engineering construction sector, primarily engaged in the survey and design of water conservancy and hydropower projects [1] Group 2 - The company is registered in Guangdong Province and is involved in data elements and new urbanization concepts [1] - On August 22, the net outflow of main funds was 40.99 million yuan, with a cumulative net outflow of 175 million yuan over the past five trading days [1] - The trading volume for the day was 197,659 hands, with a transaction amount of 656.7 million yuan [1]