市场交投情绪回暖，沪指逼近4000点

Report Industry Investment Rating - No information provided on the industry investment rating Core Viewpoints - Before the meeting between the two heads of state, high - level officials from both sides have had multiple rounds of talks, and the overall trade environment is showing a缓和 trend. With expected further increase in domestic financial policy support, market trading sentiment has heated up again, driving the Shanghai Composite Index to approach the 4000 - point mark with heavy trading volume. In the current environment, one can focus on the main line directions related to the "15th Five - Year Plan", and the long - term upward logic of stock indexes remains solid [1][3] Summary by Directory 1. Macro - economic Charts - Relevant charts include the relationship between the US dollar index and A - share trends, the relationship between US Treasury yields and A - share trends, the relationship between the RMB exchange rate and A - share trends, and the relationship between US Treasury yields and A - share style trends. All data sources are from Flush and Huatai Futures Research Institute [6][9][11] 2. Spot Market Tracking Charts - Domestic main stock index daily performance: On October 27, 2025, the Shanghai Composite Index closed at 3996.94, up 1.18%; the Shenzhen Component Index closed at 13489.40, up 1.51%; the ChiNext Index closed at 3234.45, up 1.98%; the CSI 300 Index closed at 4716.02, up 1.19%; the SSE 50 Index closed at 3069.53, up 0.78%; the CSI 500 Index closed at 7379.39, up 1.67%; the CSI 1000 Index closed at 7495.38, up 1.03% [13] - Other relevant charts include the trading volume of the Shanghai and Shenzhen stock markets and the margin trading balance, with data sources from Flush and Huatai Futures Research Institute [6][14] 3. Stock Index Futures Tracking Charts - Stock index futures trading volume and open interest: The trading volume of the IF contract was 113,332, a decrease of 2,849; the open interest was 262,244, an increase of 6,831. The trading volume of the IH contract was 56,298, a decrease of 2,681; the open interest was 98,162, an increase of 2,833. The trading volume of the IC contract was 136,694, a decrease of 1,034; the open interest was 252,585, an increase of 8,981. The trading volume of the IM contract was 214,742, a decrease of 9,711; the open interest was 358,844, an increase of 9,755 [17] - Stock index futures basis: The basis of the IF contract's current - month contract was - 15.02, a decrease of 2.74; the basis of the next - month contract was - 31.62, a decrease of 5.74; the basis of the current - quarter contract was - 60.02, a decrease of 3.34; the basis of the next - quarter contract was - 95.42, a decrease of 2.14. The basis of the IH contract's current - month contract was - 2.13, a decrease of 4.71; the basis of the next - month contract was - 2.73, a decrease of 5.51; the basis of the current - quarter contract was - 0.33, a decrease of 4.51; the basis of the next - quarter contract was - 2.13, a decrease of 8.11. The basis of the IC contract's current - month contract was - 68.99, a decrease of 22.26; the basis of the next - month contract was - 124.99, a decrease of 26.26; the basis of the current - quarter contract was - 296.39, a decrease of 31.06; the basis of the next - quarter contract was - 475.99, a decrease of 34.06. The basis of the IM contract's current - month contract was - 95.98, a decrease of 45.94; the basis of the next - month contract was - 172.78, a decrease of 51.54; the basis of the current - quarter contract was - 390.18, a decrease of 48.74; the basis of the next - quarter contract was - 603.78, a decrease of 44.34 [42] - Stock index futures inter - delivery spread: For example, in the IF contract, the spread between the next - month and current - month contracts was - 16.60, a decrease of 3.00; the spread between the next - quarter and current - month contracts was - 45.00, a decrease of 0.60. Similar data is provided for other contracts and spread combinations [50][51] - Other relevant charts include the open interest of each contract, the latest open - interest ratio, the net open interest of foreign capital in each contract, the basis and inter - delivery spread of each contract, with data sources from Flush and Huatai Futures Research Institute [6][19][34]