Group 1 - Koma Materials (920086) experienced a price increase of 3.08% with a turnover rate of 42.48% and a trading volume of 333 million yuan, showing a fluctuation of 9.07% [2] - Institutional investors net bought 2.51 million yuan, while brokerage seats collectively net sold 5.15 million yuan on the same day [2] - The stock was listed on the North Exchange due to its turnover rate reaching 42.48%, with institutional specialized seats net buying 2.51 million yuan [2] Group 2 - The top five brokerage seats accounted for a total transaction volume of 58.07 million yuan, with buying transactions amounting to 27.71 million yuan and selling transactions totaling 30.36 million yuan, resulting in a net sell of 2.64 million yuan [2] - Among the brokerage seats, one institutional specialized seat was noted, which had a buying amount of 4.28 million yuan and a selling amount of 1.77 million yuan, leading to a net buy of 2.51 million yuan [2]
科马材料龙虎榜数据（1月20日）