金融工程日报：；沪指冲高回落，军工股午后走强-20251028

• The report highlights that the CSI 2000 Index performed well among scale indices, while the SSE 50 Index fell by 0.62%[5] - The ChiNext Index performed relatively well among sector indices, with the SSE Composite Index down 0.22% and the SZSE Composite Index down 0.23%[5] - The CSI 300 Growth Index performed well among style indices, with the CSI 300 Value Index down 0.56% and the CSI 300 Growth Index down 0.41%[5] - The defense, computer, comprehensive, transportation, and textile and apparel industries performed well today, with returns of 1.23%, 0.49%, 0.46%, 0.35%, and 0.25%, respectively[6] - The non-ferrous metals, steel, construction, pharmaceuticals, and coal industries performed poorly today, with returns of -2.75%, -1.34%, -0.97%, -0.75%, and -0.71%, respectively[6] - The top-performing concepts today were cross-strait integration, Fujian state-owned assets, fiberglass, lithium battery electrolyte, and liquid metal, with returns of 7.06%, 4.34%, 3.47%, 3.23%, and 3.13%, respectively[8] - The worst-performing concepts today were gold selection, cultivated diamonds, lead-zinc mines, cobalt mines, and nickel mines, with returns of -3.24%, -2.73%, -2.41%, -2.29%, and -2.15%, respectively[8] - At the close of trading today, 71 stocks hit the daily limit up, and 11 stocks hit the daily limit down[12] - The closing return of stocks that hit the daily limit up yesterday was 3.28%, while the closing return of stocks that hit the daily limit down yesterday was -2.58%[13] - Today's board sealing rate was 71%, an increase of 11% from the previous day, and the continuous board rate was 33%, an increase of 10% from the previous day, reaching a new high for the past month[16] - As of October 27, 2025, the balance of margin trading and securities lending was 2.482 trillion yuan, with a financing balance of 2.4643 trillion yuan and a securities lending balance of 17.7 billion yuan[18] - The balance of margin trading and securities lending accounted for 2.5% of the market's circulating market value, and the margin trading and securities lending transactions accounted for 12.2% of the market's transaction amount[22] - On October 27, 2025, the ETF with the highest premium was the Specialized and New ETF, with a premium of 0.69%, and the ETF with the highest discount was the Consumer Electronics ETF, with a discount of 0.71%[23] - The average daily transaction amount of block trades in the past six months reached 1.9 billion yuan, and the transaction amount on October 27, 2025, was 1.4 billion yuan, with an average discount rate of 6.19% in the past six months and a discount rate of 3.52% on that day[26] - The annualized discount rates of the main contracts of the SSE 50, CSI 300, CSI 500, and CSI 1000 stock index futures in the past year were 0.16%, 3.08%, 10.44%, and 12.84%, respectively[28] - On October 28, 2025, the annualized premium rate of the main contract of the SSE 50 stock index futures was 0.26%, the annualized discount rate of the main contract of the CSI 300 stock index futures was 3.14%, the annualized discount rate of the main contract of the CSI 500 stock index futures was 9.86%, and the annualized discount rate of the main contract of the CSI 1000 stock index futures was 12.63%[28] - The stocks with the most institutional research in the past week were Ninebot-WD, BGI Genomics, Yuyue Medical, Dangsheng Technology, Yiyi Co., Ltd., Liangxin Co., Ltd., China Tungsten High-tech, and National Ceramic Materials, with Ninebot-WD being researched by 186 institutions[31] - The top ten stocks with net inflows from institutional seats on the Dragon and Tiger List on October 28, 2025, were Hengbao Co., Ltd., Yunhan Chip City, Antai Technology, Dawei Co., Ltd., Duofluorine, Chutian Technology, Shanghai Jahwa, Tongling Nonferrous Metals, Road and Bridge Information, and Pioneer New Materials[36] - The top ten stocks with net outflows from institutional seats on the Dragon and Tiger List on October 28, 2025, were China Tungsten High-tech, Shenkai Co., Ltd., Jianda Zhixin, Beifang Changlong, Nongxin Technology, China Ship Special Gas, Haixia Innovation, Sincerity Pharmaceutical, Zhongdian Port, and Jinfu Technology[36] - The top ten stocks with net inflows from Northbound Trading on the Dragon and Tiger List on October 28, 2025, were China Tungsten High-tech, Fangda Carbon, Jianglong Shipbuilding, Tianxiaxiu, and Jinfu Technology[37] - The top ten stocks with net outflows from Northbound Trading on the Dragon and Tiger List on October 28, 2025, were Shanghai Jahwa, Hengbao Co., Ltd., Huajian Group, Zhongdian Port, Duofluorine, Tongling Nonferrous Metals, Antai Technology, Huitong Energy, China Ship Special Gas, Chutian Technology, and Hefei Urban Construction[37]