四方科技龙虎榜：营业部净买入3005.52万元

Group 1 - The stock of Sifang Technology (603339) increased by 4.58% with a turnover rate of 15.90% and a trading volume of 797 million yuan, showing a price fluctuation of 16.29% throughout the day [2] - The stock was listed on the Shanghai Stock Exchange due to its daily price fluctuation reaching 16.29%, with a net buying amount of 30.0552 million yuan from brokerage seats [2] - The top five brokerage seats accounted for a total transaction of 126 million yuan, with a buying amount of 77.9055 million yuan and a selling amount of 47.8503 million yuan, resulting in a net buying of 30.0552 million yuan [2] Group 2 - The largest buying brokerage was Guotai Junan Securities Headquarters, with a buying amount of 30.3325 million yuan, while the largest selling brokerage was Huatai Securities Nantong Tongzhou New Century Avenue Securities Brokerage, with a selling amount of 13.8713 million yuan [2] - The stock experienced a net outflow of 1.7949 million yuan in main funds, with a significant single net outflow of 5.7847 million yuan and a large single fund inflow of 3.9899 million yuan; over the past five days, the net inflow of main funds was 1.6835 million yuan [2] - The semi-annual report released on August 21 indicated that the company achieved an operating income of 861 million yuan, a year-on-year decrease of 14.53%, and a net profit of 69.3192 million yuan, a year-on-year decrease of 47.82% [2]