期指：或震荡回升

Report Industry Investment Rating - Not provided Core Viewpoints - Index futures may oscillate and rebound [1] Summary by Relevant Catalogs 1. Index Futures Data Tracking - Market Indexes: On August 31, the CSI 300 closed at 4496.76, up 0.74%; the SSE 50 at 2976.47, up 0.53%; the CSI 500 at 7043.94, up 0.47%; and the CSI 1000 at 7438.68, down 0.11% [1] - Futures Contracts: The four major index futures contracts showed mixed performance. IF rose 1.57%, IH rose 1.19%, IC rose 1.1%, and IM rose 0.6%. The trading volume and open interest of each contract also changed, with some increasing and some decreasing [1] 2. Trading Volume and Open Interest Analysis - Trading Volume: On the trading day, the total trading volume of index futures declined, indicating a cooling of investors' trading enthusiasm. Specifically, the total trading volume of IF increased by 2170 lots, IH increased by 258 lots, IC decreased by 24970 lots, and IM decreased by 54464 lots [2] - Open Interest: The total open interest of IF increased by 3011 lots, IH decreased by 474 lots, IC decreased by 591 lots, and IM decreased by 20646 lots [2] 3. Basis Analysis - Basis Charts: The basis of IF, IH, IC, and IM futures contracts were presented in charts, showing the changes in basis over time [4] 4. Top 20 Member Position Changes - Long and Short Positions: The long and short position changes of the top 20 members in each futures contract were provided, with some increasing and some decreasing [5] 5. Trend Intensity and Important Drivers - Trend Intensity: The trend intensity of IF and IH was 1, and that of IC and IM was also 1 [6] - Important Drivers: There were several important events, including an executive meeting of the State Council, a symposium by the CSRC, and Sino - US trade talks. The Shanghai Composite Index rose 0.37%, the Shenzhen Component Index rose 0.99%, and the ChiNext Index rose 2.23%. The A - share market had a turnover of 2.83 trillion yuan. The Shanghai Composite Index rose 7.97% in August [6]