金融工程日报：沪指午后回暖，特高压、中航系概念爆发-20260119

• The report discusses the performance of various market indices, highlighting that the CSI 2000 Index performed well, with a 1.14% increase, while the SSE 50 Index fell by 0.12%[6] - The report also notes that the CSI 500 Value Index performed well among style indices, with a 1.39% increase[6] - The report provides details on the performance of different industry indices, with consumer services, petroleum and petrochemicals, and electrical equipment industries performing well, with returns of 2.50%, 2.32%, and 1.98% respectively[7] - The report highlights the performance of various concept themes, noting that the UHV, AVIC, and aero-engine concepts performed well, with returns of 6.69%, 5.64%, and 5.27% respectively[10] - The report provides data on market sentiment, noting that 103 stocks hit the daily limit up and 31 stocks hit the daily limit down, with a sealing rate of 78% and a continuous board rate of 20%[14][17] - The report discusses the flow of market funds, noting that as of January 16, 2026, the balance of margin financing and securities lending was 2.7315 trillion yuan, accounting for 2.7% of the circulating market value[19][23] - The report provides data on ETF premiums and discounts, noting that the Sci-Tech Innovation 100 Enhanced ETF had a premium of 5.47%, while the Game Media ETF had a discount of 2.98%[24][26] - The report discusses block trading premiums and discounts, noting that the average discount rate for block trades over the past six months was 6.74%, with a discount rate of 3.41% on January 16, 2026[27][29] - The report provides data on the annualized discount rates of stock index futures, noting that the annualized discount rate of the CSI 500 stock index futures main contract was 1.74%, at the 94th percentile over the past year[29][32] - The report highlights the stocks that were most frequently researched by institutions in the past week, with Dikang Holdings being researched by 97 institutions[31][33] - The report provides data on the top ten stocks with net inflows and outflows from institutional seats and Northbound funds, with Goldwind Technology and China XD Electric being the top net inflow stocks respectively[37][38][39][41]