电子城振幅16.64%，龙虎榜上机构买入7848.16万元，卖出3537.07万元

Group 1 - The stock of Electronic City (600658) experienced a decline of 0.59% with a turnover rate of 18.07% and a trading volume of 1.663 billion yuan, showing a fluctuation of 16.64% during the day [2] - Institutional investors net bought 43.11 million yuan, while the Shanghai-Hong Kong Stock Connect saw a net purchase of 94.69 million yuan, indicating strong institutional interest [2] - The top five trading departments accounted for a total transaction of 440 million yuan, with a net purchase of 14.2 million yuan, reflecting positive sentiment among major investors [2][3] Group 2 - In the first quarter, the company reported a revenue of 281 million yuan, a significant year-on-year decline of 73.26%, and a net loss of 66.99 million yuan [3] - The company projected a net loss for the first half of the year between 190 million yuan and 130 million yuan, indicating a year-on-year change of -292.12% to -168.29% [3] - The trading data on August 21 showed that the top buying department was the Shanghai-Hong Kong Stock Connect with a purchase of 134.38 million yuan, while the top selling department also belonged to the same entity with a sale of 39.69 million yuan [3][4]