Group 1 - The article reports on stock buybacks conducted by various companies on January 16, 2026, with Xiaomi Group-W (01810) having the largest buyback amount of 219 million yuan for 5.90 million shares [1][2] - Other notable buybacks include Sunyu Optical Technology (02382) with 1.13 million shares repurchased for approximately 74.9 million yuan and Xiansheng Pharmaceutical (02096) with 4.43 million shares for about 51.6 million yuan [1][2] - The total number of shares repurchased by Xiaomi Group-W represents 0.71% of its total share capital, while Sunyu Optical Technology's buyback accounts for 0.64% of its total share capital [2][3] Group 2 - The buyback activity reflects a trend among companies to return capital to shareholders, with several companies like Country Garden Services (06098) and Baidu-W (02423) also engaging in significant buybacks [1][2] - The buyback amounts and share counts vary significantly across companies, with some like Weigao Group (01066) and Yunda Automotive (03669) showing higher percentages of total share capital repurchased, at 6.68% and 1.27% respectively [2][3] - The data indicates a diverse range of industries participating in buybacks, including technology, healthcare, and consumer services, suggesting a broad interest in enhancing shareholder value across sectors [1][2]