京北方振幅16.91%，龙虎榜上机构买入1.42亿元，卖出1104.23万元

Group 1 - The stock of Jingbeifang increased by 4.76% with a turnover rate of 16.78% and a trading volume of 2.208 billion yuan, showing a fluctuation of 16.91% throughout the day [1] - Institutional investors net bought 131 million yuan, while the Shenzhen Stock Connect recorded a net sell of 40.9793 million yuan, and the total net sell from brokerage seats was 101 million yuan [1] - The top five brokerage seats accounted for a total transaction of 545 million yuan, with a buying amount of 267 million yuan and a selling amount of 278 million yuan, resulting in a net sell of 11.8115 million yuan [1] Group 2 - As of February 20, the latest margin trading balance for the stock was 304 million yuan, with a financing balance of 303 million yuan and a securities lending balance of 1.7716 million yuan [2] - Over the past five days, the financing balance decreased by 7.2027 million yuan, representing a decline of 2.33%, while the securities lending balance increased by 0.7730 million yuan, showing a growth of 77.40% [2]