期指：利多进一步明朗，偏强震荡

Group 1: Report Investment Rating - No information provided about the report industry investment rating Group 2: Core View - On October 20, all the current-month contracts of the four major stock index futures rose. IF increased by 0.5%, IH by 0.3%, IC by 0.73%, and IM by 0.47%. The total trading volume of stock index futures declined on this trading day, indicating a decrease in investors' trading enthusiasm. In terms of positions, the total positions of IF, IH, IC, and IM all decreased [2][3] Group 3: Summary by Related Catalogs 1. Stock Index Futures Data Tracking - IF Futures: The closing prices of IF2511, IF2512, IF2603 rose, while IF2606 fell. The total trading volume decreased by 57144 lots, and the total positions decreased by 8343 lots. The multi - and short - order positions of some contracts decreased, with IF2512 having a multi - order net change of - 8401 and a short - order net change of - 7350 [2][3][6] - IH Futures: The closing prices of IH2511, IH2512, IH2603, IH2606 rose. The total trading volume decreased by 36593 lots, and the total positions decreased by 8030 lots. The multi - and short - order positions of some contracts decreased, with IH2512 having a multi - order net change of - 6902 and a short - order net change of - 6989 [2][3][6] - IC Futures: The closing prices of IC2511, IC2512, IC2603 rose, while IC2606 fell. The total trading volume decreased by 37567 lots, and the total positions decreased by 3371 lots. The multi - and short - order positions of some contracts decreased, with IC2512 having a multi - order net change of - 7960 and a short - order net change of - 8101 [2][3][6] - IM Futures: The closing prices of IM2511, IM2512, IM2603 rose, while IM2606 fell. The total trading volume decreased by 62630 lots, and the total positions decreased by 9885 lots. The multi - and short - order positions of some contracts decreased, with IM2512 having a multi - order net change of - 15080 and a short - order net change of - 16587 [2][3][6] 2. Trend Intensity - The trend intensity of IF and IH is 1, and that of IC and IM is also 1. The trend intensity ranges from - 2 (most bearish) to 2 (most bullish) [8] 3. Important Drivers - The Fourth Plenary Session of the 20th Central Committee started in Beijing on the morning of October 20. Sino - US negotiations are about to resume. The GDP in the first three quarters of China increased by 5.2% year - on - year. The Shanghai Composite Index rose 0.63%, the Shenzhen Component Index rose 0.98%, and the ChiNext Index rose 1.98%. A - share trading volume was 1.75 trillion yuan, the lowest since August 8 [9]