数字水印概念下跌2.15%，主力资金净流出22股

Group 1 - The digital watermark concept sector experienced a decline of 2.15%, ranking among the top losers in the concept sector, with major stocks like Hongbo Co., Ltd. hitting the limit down, while a few stocks like Xinghuan Technology and ST Lingnan saw gains of 3.61% and 1.19% respectively [1][2] - The digital watermark sector faced a net outflow of 1.271 billion yuan, with 22 stocks experiencing net outflows, and 7 stocks seeing outflows exceeding 50 million yuan, led by Hongbo Co., Ltd. with a net outflow of 574 million yuan [2][3] - The top stocks with net outflows included Tianrongxin, Vision China, and Dongfang Guoxin, with net outflows of 227 million yuan, 132.66 million yuan, and 65.30 million yuan respectively [2][3] Group 2 - The concept sectors with the highest gains included the military equipment restructuring concept at 3.57%, sodium-ion batteries at 2.41%, and graphite electrodes at 2.32%, while the digital watermark concept was among the top losers [2] - The main stocks with net inflows in the digital watermark sector included Ruike Laser, Xinghuan Technology, and ST Yilianzhong, with net inflows of 44.65 million yuan, 43.82 million yuan, and 7.78 million yuan respectively [2][3]