国家大基金持股概念下跌0.85%，主力资金净流出36股

Group 1 - The National Big Fund holding concept declined by 0.85%, ranking among the top declines in concept sectors, with notable declines in companies like Jingrui Electric Materials, Changdian Technology, and Nanda Optoelectronics [1] - Among the 15 stocks that increased, ShenNan Circuit, Chipone Technology, and Guoke Microelectronics saw gains of 7.65%, 4.95%, and 4.92% respectively [1] - The concept sector experienced a net outflow of 8.096 billion yuan, with 36 stocks facing net outflows, and 17 stocks seeing outflows exceeding 1 billion yuan [2] Group 2 - The top net outflow stock was Tongfu Microelectronics, with a net outflow of 1.623 billion yuan, followed by Huatian Technology, Changdian Technology, and Baiwei Storage with outflows of 1.038 billion yuan, 925 million yuan, and 880 million yuan respectively [2] - Stocks with the highest net inflow included ShenNan Circuit, Saiwei Electronics, and Chipone Technology, with inflows of 297 million yuan, 207 million yuan, and 173 million yuan respectively [2] - The National Big Fund holding concept saw significant declines in several stocks, with Changdian Technology down by 6.10%, Jingrui Electric Materials down by 8.97%, and Nanda Optoelectronics down by 4.87% [3]