金融工程日报：沪指放量上涨逼近4000点，科技龙头全线走强-20251027

• The market performance on October 27, 2025, showed that most indices were in an upward trend, with the CSI 500 index performing the best among scale indices, and the ChiNext index performing the best among sector indices[2][6] - The communication, electronics, non-ferrous metals, steel, and computer industries performed well, while the media, food and beverage, real estate, banking, and textile and apparel industries performed poorly[2][7] - The market sentiment at the close showed 64 stocks hitting the daily limit up and 20 stocks hitting the daily limit down, with a sealing rate of 60% and a continuous board rate of 23%[2][14][18] - The financing balance as of October 24, 2025, was 24,398 billion yuan, and the securities lending balance was 174 billion yuan, with the financing balance accounting for 2.5% of the market's circulating market value[2][20][23] - The ETF with the highest premium on October 24, 2025, was the Belt and Road ETF, while the ETF with the highest discount was the Sci-Tech Composite Index ETF Xingye[3][24][26] - The median annualized discount rates for the main contracts of the SSE 50, CSI 300, CSI 500, and CSI 1000 stock index futures over the past year were 0.16%, 3.06%, 10.44%, and 12.84%, respectively[3][29][32] - The stocks with the most institutional attention in the past week were Yuyue Medical, CVTE, Dangsheng Technology, Liangxin Co., Ltd., Guangxin Technology, Runfeng Co., Ltd., Ruipu Bio, and Good Wife, with Yuyue Medical being surveyed by 113 institutions[4][31][34] - The top ten stocks with net inflows from institutional seats on the Dragon and Tiger List on October 27, 2025, included Jingzhida, Sunflower, Star Ring Technology-U, Antai Technology, Hengbao Co., Ltd., China Electric Port, Haixia Innovation, Shandong Molong, Pioneer New Materials, and Chang Aluminum Co., Ltd.[4][36][37]