龙虎榜丨三角防务20CM涨停，中山东路净买入1.62亿元

Group 1 - Triangle Defense (300775.SZ) experienced a 20% limit-up today, with a turnover rate of 13.71% and a transaction volume of 2.278 billion yuan [1] - The net buying from the Shenzhen Stock Connect amounted to 35.46 million yuan, with significant contributions from retail investors [1] - The top buying seat was held by "Zhongshan Road" with a net purchase of 162.7 million yuan, followed by Northeast Securities Qingdao branch with 103.26 million yuan [1] Group 2 - The top five buying firms accounted for a total of 427.76 million yuan, representing 19.28% of the total transaction volume [2] - The largest buying firm, Guotai Junan Securities Shanghai Zhongshan Road branch, had a buying amount of 162.7 million yuan, constituting 7.33% of the total transaction [2] - The second-largest buying firm, Northeast Securities Qingdao branch, contributed 103.26 million yuan, making up 4.65% of the total transaction [2]