国光电气龙虎榜：营业部净买入3782.43万元

Core Points - On October 9, Guoguang Electric (688776) closed at 100.20 yuan, reaching the daily limit with a trading volume of 7.02 billion yuan and a turnover rate of 6.71% [2] - The stock was listed on the Sci-Tech Innovation Board due to a price increase of 15% at the close [2] - The net inflow of main funds for the stock was 18.71 million yuan throughout the day [3] Trading Activity - The top five buying and selling trading departments accounted for a total transaction of 274 million yuan, with a buying amount of 156 million yuan and a selling amount of 118 million yuan, resulting in a net buying of 37.82 million yuan [2] - The largest buying department was the Shanghai-Hong Kong Stock Connect with a purchase amount of 58.35 million yuan, while the second largest selling department was also the Shanghai-Hong Kong Stock Connect with a selling amount of 29.44 million yuan [3] - Institutional proprietary seats were involved in both buying and selling, with a net buying of 21.19 million yuan from institutional seats and a net buying of 28.91 million yuan from the Shanghai-Hong Kong Stock Connect [2][3]