Group 1 - The core point of the article is that Liujin Technology (stock code: 920021) experienced significant trading activity on January 29, 2026, with a price fluctuation of 36.28% and a trading volume of 101 million shares, amounting to a total transaction value of 1.279 billion yuan [1][3]. Group 2 - The top buying seat was from Changcheng Securities Co., Ltd. Northwest Branch, which purchased shares worth approximately 38.98 million yuan [2]. - The top selling seat was from Dongguan Securities Co., Ltd. Sichuan Branch, which sold shares worth approximately 19.75 million yuan [2]. - Other notable buying and selling activities included various securities firms, with significant amounts traded by institutions and other branches of Dongfang Caifu Securities [2].