持仓方面，期指各品种前20席位（下称主力）持仓变化各不相同。具体来看，IF多头主力减仓7758手 （交易所公布合约8月21日与8月20日主力持仓总和的差值，下同），空头主力减仓8316手，净空持仓降 至26807手；IH多头主力减仓2210手，空头主力减仓3820手，净空持仓降至16320手；IC多头主力减仓 129手，空头主力减仓427手，净空持仓降至15035手；IM多头主力增仓1347手，空头主力增仓1484手， 净空持仓增至51768手。 （文章来源：期货日报） 周四，国内A股市场涨势再度放缓，上证指数全天围绕3775点上下波动，最终收报3771.1点。同时期指4 个品种走势分化，其中IF及IH双双收涨，主力合约分别上涨0.66%和0.84%，IC及IM主力合约则分别下 跌0.06%和0.43%。基差方面，IF、IC及IM主力合约贴水分别扩大至5.9、47.8和51.1点，IH主力合约升 水则收窄至3.2点。 总体来看，周四期指总持仓显著下滑，但各品种主力持仓各有增减。期指前期累积较大涨幅，短线涨势 或继续放缓。 量能方面，期指持仓明显回落，4个品种当日共计减仓21647手，总持仓降至980987手。 ...

Group 1 - The A-share market experienced wide fluctuations on July 23, with the Shanghai Composite Index reaching a year-high of 3613.02 points before closing at 3582.3 points [1] - All four main contracts of the futures index (IF, IH, IC, IM) saw gains, with increases of 0.31%, 0.48%, 0.13%, and 0.06% respectively [1] - The total open interest in the futures market increased by 13,345 contracts, reaching 936,327 contracts, indicating a growing interest in futures trading [1] Group 2 - The performance of the top 20 positions in futures contracts showed mixed results, with IF's net short position rising to 25,505 contracts, while IH's net short position slightly decreased to 16,153 contracts [2] - Specific changes in positions included significant increases in long positions for IM, which saw an increase of 16,839 contracts, while IC's net short position rose to 14,381 contracts [2] - The overall analysis suggests that market divergence is increasing, and the short-term upward momentum in futures indices may slow down [2]

Core Points - The A-share market continued its upward trend last week, with the Shanghai Composite Index reaching a new high of 3555.22 points before closing at 3510.18 points [1] - All four futures contracts saw gains, with IM and IC performing particularly well, rising by 3.48% and 2.61% respectively, while IF and IH increased by 1.61% and 1.49% [1] - The basis for futures contracts narrowed significantly, with the main contracts for IF, IH, IC, and IM showing discounts of 21.4, 5.2, 4.1, and 141.3 points respectively [1] Trading Volume and Positions - The total open interest for futures contracts increased by 38,663 contracts last week, bringing the total open interest to 990,159 contracts [1] - Each futures contract saw varying degrees of increase in open interest, with IF up by 16,602 contracts to 282,628, IH up by 12,899 contracts to 110,637, IC up by 5,445 contracts to 241,973, and IM up by 3,717 contracts to 354,921 [1] - The top 20 positions for each futures contract saw significant increases, with notable changes in long and short positions across all contracts [2] Position Details - For the IF contract, long positions increased by 15,860 contracts and short positions by 19,446 contracts, resulting in a net short position of 29,525 contracts [2] - The IH contract saw long positions rise by 15,688 contracts and short positions by 19,173 contracts, leading to a net short position of 16,132 contracts [2] - The IC contract had long positions increase by 9,676 contracts and short positions by 12,573 contracts, resulting in a net short position of 12,828 contracts [2] - The IM contract experienced a rise in long positions by 1,434 contracts and short positions by 4,604 contracts, leading to a net short position of 38,822 contracts [2] Market Activity - The overall increase in total open interest indicates heightened market activity, suggesting a more active trading environment [2] - The short-term gains in futures contracts may lead to a potential slowdown in upward momentum in the near future [2]

Group 1: Report Industry Investment Rating - No information provided Group 2: Core Viewpoints of the Report - On July 5th, the current-month contracts of the four major stock index futures showed mixed performance. IF rose 0.44%, IH rose 0.61%, IC fell 0.01%, and IM fell 0.29%. The total trading volume of stock index futures rebounded, indicating increased trading enthusiasm among investors. The trend intensities of IF and IH are 1, and those of IC and IM are also 1. There are important news including the resumption of product exports from the US to China and local measures for population development. The three major stock indices showed a pattern of rising and then falling [1][2][6] Group 3: Summary According to Related Catalogs 3.1 Stock Index Futures Data Tracking - **IF Contracts**: The closing prices of IF2507, IF2508, IF2509, and IF2512 all rose, with increases of 0.44%, 0.40%, 0.46%, and 0.47% respectively. The trading volumes and open interests of these contracts also increased. For example, the trading volume of IF2509 increased by 28,804, and the open interest increased by 14,488 [1] - **IH Contracts**: The closing prices of IH2507, IH2508, IH2509, and IH2512 all rose, with increases of 0.61%, 0.58%, 0.62%, and 0.59% respectively. The trading volumes and open interests also increased. For instance, the trading volume of IH2509 increased by 19,867, and the open interest increased by 9,229 [1] - **IC Contracts**: The closing prices of IC2507, IC2508, IC2509, and IC2512 all fell slightly, with decreases of 0.01%, 0.01%, 0.08%, and 0.04% respectively. The trading volumes and open interests increased. For example, the trading volume of IC2509 increased by 13,772, and the open interest increased by 6,230 [1] - **IM Contracts**: The closing prices of IM2507, IM2508, IM2509, and IM2512 all fell, with decreases of 0.29%, 0.36%, 0.43%, and 0.47% respectively. The trading volumes and open interests increased. For instance, the trading volume of IM2509 increased by 55,982, and the open interest increased by 16,019 [1] 3.2 Changes in the Top 20 Member Positions of Stock Index Futures - For most contracts, the long and short positions of the top 20 members showed increases. For example, in the IF2509 contract, the long positions increased by 11,728, and the short positions increased by 11,807 [5] 3.3 Important Driving Factors - There are reports that the US has resumed exports of products such as EDA software, ethane, and aircraft engines to China. Relevant departments in multiple regions are about to introduce measures for population development. The three major stock indices had a performance of rising and then falling, with some sectors showing strong performance and others weakening [6]

Report Summary 1. Report Industry Investment Rating No industry investment rating is provided in the report. 2. Core View The report provides a comprehensive analysis of the futures index market on June 20, 2025, including data tracking, trading volume, open interest, and basis. It also highlights important geopolitical events and upcoming economic events that may impact the market, along with the performance of the A - share market [1][6]. 3. Summary by Relevant Catalogs 3.1 Futures Index Data Tracking - On June 20, the closing prices and price changes of the four major futures index contracts varied. IF rose 0.31%, IH rose 0.62%, IC fell 0.38%, and IM fell 0.52%. The trading volume, open interest, and basis of different contracts also showed different trends [1]. - The total trading volume of futures indices declined, indicating a decrease in investors' trading enthusiasm. The total trading volume of IF decreased by 24,231 lots, IH by 2,399 lots, IC by 10,030 lots, and IM by 16,453 lots. The total open interest of IF decreased by 29,611 lots, IH by 11,156 lots, IC by 19,814 lots, and IM by 28,914 lots [2]. 3.2 Futures Index Member Position Changes - The long and short positions of the top 20 members in different futures index contracts changed. For example, in the IF2506 contract, the long - position decreased by 19,273 lots and the net long - position decreased by 13,025 lots; the short - position decreased by 14,620 lots and the net short - position decreased by 8,319 lots [5]. 3.3 Trend Intensity - The trend intensity of IF and IH is 1, and that of IC and IM is also 1, with the trend intensity ranging from - 2 to 2, where - 2 represents the most bearish and 2 represents the most bullish [6]. 3.4 Important Drivers - Geopolitical events: Iran's parliament approved the closure of the Strait of Hormuz, and the US claimed to have destroyed Iran's nuclear program [6]. - Upcoming economic events: The 2025 Summer Davos will open in Tianjin, Powell will give semi - annual monetary policy testimony, and many countries will release June PMI data. Additionally, China will announce the profit growth rate of industrial enterprises above a designated size in May [6]. - A - share market performance: The A - share market declined in the afternoon, with the ChiNext Index leading the decline. The market volume shrank to a one - month low, and most stocks closed lower [6].

首先是读者对我滚ic期指这么多年来的收益率感兴趣，其实这个很容易算的。我是2016年下半年开始执行这个策略的，巧的是我刚启动的那会中证500指 数也就是6000点出头，和现在的点数十分接近。 又到周末了，写写之前几天一些没聊完的话题。 如果你持有etf的话，就是典型的浪费时间+不挣钱，资金放在股市里十年就是玩。如果持有ic，假设每年有6%的贴水，情况就会好很多，起码你没有浪费 时间，还是能挣到一些钱的。 | ULLE E E SELL FOR SELL FOR SELL FOR SELL FOR SELL FOR SELLER SERVER FOR SERVEN FOR A | 2016 2017 2018 2019 2019 2020 2021 2021 2021 2023 2024 | | --- | --- | | 持合ctf -17.78% 0.58% -33.49% 29.53% 24.32% 17.77% -18.81% -6.45% 7.10% | | | 持合ic -11.78% 6.58% -27.49% 35.53% 30.32% 23.77% -12.81% -0.45% 13.10% ...