12.29亿主力资金净流入，果指数概念涨1.64%

Group 1 - The Guo Index concept rose by 1.64%, ranking fourth among concept sectors, with eight stocks increasing in value, including Changying Precision (+9.49%), Lens Technology (+4.07%), and Lante Optics (+2.70%) [1] - The leading decliners in the sector included Dongshan Precision (-0.68%), Pengding Holdings (-0.27%), and Luxshare Precision (-0.26%) [1] - The main inflow of funds into the Guo Index concept sector was 1.229 billion yuan, with six stocks receiving net inflows, and five stocks exceeding 100 million yuan in net inflows [1] Group 2 - Leading stocks by net inflow included Lingyi iTech with 376 million yuan, followed by Luxshare Precision (332 million yuan), Lens Technology (258 million yuan), and Changying Precision (240 million yuan) [2] - The net inflow ratios for Lingyi iTech, Lens Technology, and Luxshare Precision were 7.36%, 6.97%, and 5.74% respectively [2] - The trading turnover rates for these stocks were 4.52% for Lingyi iTech, 2.55% for Lens Technology, and 13.39% for Changying Precision [2]