股指期货持仓日度跟踪-20251021

1. Report Industry Investment Rating - No information provided 2. Core View of the Report - The report provides a daily tracking of stock index futures positions, including the overall position changes and key changes in the top 20 seats of IF, IH, IC, and IM contracts on October 20, 2025 [1][5][12] 3. Summary by Related Catalogs IF (CSI 300) - Overall Position Change: On October 20, the total position of the IF variety decreased by 8,343 lots, and the position of the main contract 2512 decreased by 6,835 lots [5] - Top 20 Long Seats: Among the top 20 long seats, Guotai Junan Futures ranked first with a total position of 38,965 lots. Guotou Futures had the largest increase in long positions, adding 806 lots, while Guotai Junan Futures had the largest decrease, reducing 2,219 lots [6] - Top 20 Short Seats: Among the top 20 short seats, CITIC Futures ranked first with a total position of 43,168 lots. Guotou Futures had the largest increase in short positions, adding 1,012 lots, while Guotai Junan Futures had the largest decrease, reducing 2,412 lots [8] IH (SSE 50) - Overall Position Change: On October 20, the total position of the IH variety decreased by 8,030 lots, and the position of the main contract 2512 decreased by 7,038 lots [12] - Top 20 Long Seats: Among the top 20 long seats, Guotai Junan Futures ranked first with a total position of 11,167 lots. Nanhua Futures had the largest increase in long positions, adding 98 lots, while Guotai Junan Futures had the largest decrease, reducing 1,599 lots [13] - Top 20 Short Seats: Among the top 20 short seats, CITIC Futures ranked first with a total position of 14,778 lots. Everbright Futures had the largest increase in short positions, adding 104 lots, while Guotai Junan Futures had the largest decrease, reducing 2,561 lots [14] IC (CSI 500) - Overall Position Change: On October 20, the total position of the IC variety decreased by 3,371 lots, and the position of the main contract 2512 decreased by 4,998 lots [18] - Top 20 Long Seats: Among the top 20 long seats, Guotai Junan Futures ranked first with a total position of 37,773 lots. Shenyin Wanguo Futures had the largest increase in long positions, adding 210 lots, while CITIC Futures had the largest decrease, reducing 2,972 lots [19] - Top 20 Short Seats: Among the top 20 short seats, CITIC Futures ranked first with a total position of 40,092 lots. Shenyin Wanguo Futures had the largest increase in short positions, adding 135 lots, while CITIC Futures had the largest decrease, reducing 2,814 lots [21] IM (CSI 1000) - Overall Position Change: On October 20, the total position of the IM variety decreased by 9,885 lots, and the position of the main contract 2509 decreased by 9,694 lots [25] - Top 20 Long Seats: Among the top 20 long seats, Guotai Junan Futures ranked first with a total position of 52,643 lots. Dadi Futures had the largest increase in long positions, adding 256 lots, while CITIC Futures had the largest decrease, reducing 1,821 lots [26] - Top 20 Short Seats: Among the top 20 short seats, CITIC Futures ranked first with a total position of 73,321 lots. Guotou Futures had the largest increase in short positions, adding 477 lots, while CITIC Futures had the largest decrease, reducing 1,696 lots [28]