Core Insights - Tonghui Electronics (920509) experienced a significant stock price increase of 29.99% on October 13, 2025, closing at 44.17 yuan [1] - The trading volume reached 14.6158 million shares, with a total transaction value of 604 million yuan [1] Trading Activity - The top buying seat was from Dongfang Securities Co., Ltd. Hangzhou Jinjilu Securities Business Department, purchasing 15.52 million yuan worth of shares [2] - The top selling seat was from Guotai Haitong Securities Co., Ltd. Jiangsu Changzhou Fitness Road Business Department, selling shares worth 12.09 million yuan [2] - Other notable buying activities included purchases from Dongfang Caifu Securities and institutional investors, with amounts of approximately 11.98 million yuan and 11.52 million yuan respectively [2]