Group 1 - The stock price of Chunguang Technology closed at 41.50 yuan on August 21, 2025, down 1.68% from the previous trading day, with a trading volume of 3.41 billion yuan and 79,969 hands traded [1] - The stock reached a high of 44.18 yuan and a low of 40.80 yuan during the trading session, with a volatility of 8.01% [1] - Chunguang Technology operates in the home appliance industry, focusing on the research, production, and sales of cleaning appliance hoses and components, which are widely used in vacuum cleaners and robotic vacuums [1] Group 2 - On August 21, the stock experienced a rapid decline, with a drop of over 2% within five minutes, followed by some fluctuations in the stock price [1] - In terms of capital flow, there was a net outflow of 28.49 million yuan from main funds on August 21, accounting for 0.51% of the circulating market value [1] - Over the past five trading days, there has been a cumulative net inflow of 27.99 million yuan from main funds, representing 0.5% of the circulating market value [1]