Group 1 - The core point of the article is that Liu Jin Technology (stock code: 920021) has seen significant trading activity on February 12, 2026, with a turnover rate of 23.65% and a transaction volume of 55.07 million shares, amounting to 849 million yuan [1][3]. - The top buying position was from an institutional investor, which purchased approximately 28.73 million yuan worth of shares [1][2]. - The top selling position was from Changcheng Securities Co., Ltd. Northwest Branch, which sold approximately 27.50 million yuan worth of shares [1][2]. Group 2 - The trading data indicates that the total buying amount from the top five buying positions was significant, with the largest being from an institutional investor, followed by various branches of Dongfang Caifu Securities [2]. - The selling data shows that the largest selling amount was also from Changcheng Securities, indicating a potential shift in investor sentiment [2].