黄河旋风龙虎榜：营业部净买入1683.56万元

Group 1 - Huanghe Xuanfeng (600172) experienced a price increase of 6.73% on the day, with a turnover rate of 18.09% and a total transaction amount of 964 million yuan, indicating significant trading activity [1] - The stock's price fluctuation reached 17.74%, leading to its listing on the Shanghai Stock Exchange's daily volatility board [2] - The net buying by brokerage seats totaled 16.8356 million yuan, reflecting positive investor sentiment towards the stock [2]