期指：反弹后的震荡

Report Summary 1. Report Industry Investment Rating No relevant content provided. 2. Core View of the Report - On December 17, all four major index futures contracts for the current month rose. IF rose 1.86%, IH rose 1.43%, IC rose 2.02%, and IM rose 1.54%. The total trading volume of index futures rebounded, indicating an increase in investors' trading enthusiasm. However, the total open interest of IF, IH, and IM decreased, while that of IC increased [1][2]. - The trend strength of IF and IH is 1, and that of IC and IM is also 1. Trump's order to block sanctioned oil tankers in and out of Venezuela led to a significant rise in US WTI crude oil and Brent crude oil, and the escalation of geopolitical tensions increased the demand for safe - haven assets, pushing up the prices of precious metals [6]. - The merger plan of CICC, Dongxing, and Cinda was finalized, with the exchange price set at 36.91 yuan per share. After the merger, CICC's operating income is estimated to be about 27.4 billion yuan, and it will become the fourth brokerage with total assets exceeding one trillion yuan. A - share and Hong Kong - stock markets showed an upward trend, while US stock markets closed down [7]. 3. Summary by Relevant Catalogs 3.1 Index Futures Data - Prices and Changes: The closing prices of major stock indices such as CSI 300, SSE 50, CSI 500, and CSI 1000 all rose, with increases ranging from 1.25% to 1.95%. The corresponding index futures contracts also showed varying degrees of increase, with the highest increase of 2.47% for IC2606 [1]. - Trading Volume and Open Interest: The total trading volume of IF, IH, IC, and IM increased by 39,510, 4,636, 21,520, and 35,895 lots respectively. The total open interest of IF decreased by 628 lots, IH decreased by 1,896 lots, IC increased by 2,748 lots, and IM decreased by 9,704 lots [2]. - Basis: Different index futures contracts have different basis values, such as IF2512 with a basis of - 1.68, IH2512 with a basis of - 4.48, IC2512 with a basis of 8.97, and IM2512 with a basis of 6.26 [1]. 3.2 Index Futures Top 20 Member Position Changes - For different index futures contracts, the long - and short - position changes of the top 20 members vary. For example, for IF2512, the long - position decreased by 22,412 lots, and the short - position decreased by 22,426 lots [5]. 3.3 Market - Driving Factors - Geopolitical Factors: Trump's order to block oil tankers in and out of Venezuela led to a significant rise in oil prices and increased market concerns about supply tightening. Geopolitical tensions also increased the demand for safe - haven assets, pushing up the prices of precious metals [6]. - Corporate Merger: The merger plan of CICC, Dongxing, and Cinda was finalized, which is a major merger in the brokerage sector. After the merger, CICC's scale and competitiveness will be significantly enhanced [7]. - Macroeconomic and Policy Factors: Fed Governor Waller said that the employment market is weak, and the Fed's interest - rate cuts have helped the employment market. The A - share market rose, and the US stock market closed down due to investors' assessment of the US economic report [7].