Report Industry Investment Rating - Not provided in the content Core Viewpoints - The A-share market showed an upward trend, with the Shanghai Composite Index rising 1.36% to close at 3916.33 points and the ChiNext Index rising 3.02%. Most sector indices increased, with the communication, electronics, and building decoration sectors leading the gains, while only the coal sector closed lower. The trading volume of the Shanghai and Shenzhen stock markets was approximately 1.8 trillion yuan. Overseas, the three major US stock indices closed mixed, with the Dow Jones Industrial Average rising 0.47% to 46924.74 points [1]. - In the futures market, the basis of IC and IM rebounded, and both the trading volume and open interest of stock index futures increased [1]. - In the short term, the market is likely to continue the pattern of shock digestion, with the CSI 500 and CSI 1000 indices still operating within the box range formed in September [2]. Summary by Directory Macro - economic Charts - The content shows the relationship between the US dollar index and A - share trends, the US Treasury yield and A - share trends, the RMB exchange rate and A - share trends, and the US Treasury yield and A - share style trends, with data sources from Flush and Huatai Futures Research Institute [5][8][10] Spot Market Tracking Charts - The daily performance data of major domestic stock indices on October 21, 2025, and October 20, 2025, are presented. For example, the Shanghai Composite Index rose 1.36% from 3863.89 to 3916.33 [12]. - The content also includes 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 [5][13] Futures Market Tracking Charts - The trading volume and open interest data of IF, IH, IC, and IM contracts are provided. For example, the trading volume of the IF contract was 122466, an increase of 10179, and the open interest was 258766, an increase of 1315 [14]. - The basis data of stock index futures for different contracts (current month, next month, current quarter, and next quarter) are given, such as the current - month contract basis of the IF was - 19.27, a decrease of 0.85 [38]. - The inter - period spread data of stock index futures are presented, including the spread between the next month and the current month, the next quarter and the current month, etc. For example, the spread between the next month and the current month of the IF was - 11.00, an increase of 2.00 [43] - There are also various figures related to stock index futures, such as the open interest of different contracts, the latest open - interest ratio, and the net open interest of foreign investors in different contracts, with data sources from Flush and Huatai Futures Research Institute [5][14][15]