股指期货持仓日度跟踪-20250520

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - The report provides a daily tracking of the positions of stock index futures on May 19, 2025, including the overall position changes and the important changes of the top 20 seats for IF, IH, IC, and IM [1]. Summary by Related Catalogs IF (CSI 300) - Total Position and Main Contract Position Changes: On May 19, the total position of the IF variety decreased slightly by 1,782 lots, and the position of the main contract 2506 decreased by 5,494 lots [4]. - Top 20 Long Seats Position Changes: Among the top 20 long seats of the IF variety on that day, Guotai Junan Futures ranked first with a total position of 39,196 lots. The long position of Guosen Futures increased the most, with an intraday increase of 454 lots; the long position of Guotai Junan Futures decreased the most, with an intraday decrease of 1,390 lots [5]. - Top 20 Short Seats Position Changes: Among the top 20 short seats of the IF variety on that day, CITIC Futures ranked first with a total position of 47,127 lots. The short position of Guosen Futures increased the most, with an intraday increase of 685 lots; the short position of Guotai Junan Futures decreased the most, with an intraday decrease of 1,377 lots [7]. IH (SSE 50) - Total Position and Main Contract Position Changes: On May 19, the total position of the IH variety decreased by 3,530 lots, and the position of the main contract 2506 decreased by 3,346 lots [10]. - Top 20 Long Seats Position Changes: Among the top 20 long seats of the IH variety on that day, Guotai Junan Futures ranked first with a total position of 9,623 lots. The long position of Nanhua Futures increased the most, with an intraday increase of 287 lots; the long position of Haitong Futures decreased the most, with an intraday decrease of 1,087 lots [11]. - Top 20 Short Seats Position Changes: Among the top 20 short seats of the IH variety on that day, Guotai Junan Futures ranked first with a total position of 12,199 lots. The short position of Galaxy Futures increased the most, with an intraday increase of 155 lots; the short position of Guotai Junan Futures decreased the most, with an intraday decrease of 752 lots [12]. IC (CSI 500) - Total Position and Main Contract Position Changes: On May 19, the total position of the IC variety increased by 7,465 lots, and the position of the main contract 2506 increased by 2,238 lots [16]. - Top 20 Long Seats Position Changes: Among the top 20 long seats of the IC variety on that day, CITIC Futures ranked first with a total position of 30,837 lots. The long position of Guotai Junan Futures increased the most, with an intraday increase of 1,123 lots; the long position of Haitong Futures decreased the most, with an intraday decrease of 230 lots [17]. - Top 20 Short Seats Position Changes: Among the top 20 short seats of the IC variety on that day, CITIC Futures ranked first with a total position of 35,428 lots. The short position of CITIC Futures increased the most, with an intraday increase of 1,530 lots; the short position of CITIC Construction Investment Futures decreased the most, with an intraday decrease of 261 lots [18]. IM (CSI 1000) - Total Position and Main Contract Position Changes: On May 19, the total position of the IM variety increased significantly by 12,395 lots, and the position of the main contract 2506 increased by 3,626 lots [22]. - Top 20 Long Seats Position Changes: Among the top 20 long seats of the IM variety on that day, Guotai Junan Futures ranked first with a total position of 43,780 lots. The long position of CITIC Futures increased the most, with an intraday increase of 4,369 lots; the long position of Everbright Futures decreased the most, with an intraday decrease of 412 lots [22]. - Top 20 Short Seats Position Changes: Among the top 20 short seats of the IM variety on that day, CITIC Futures ranked first with a total position of 56,973 lots. The short position of CITIC Futures increased the most, with an intraday increase of 2,315 lots; the short position of Guotai Junan Futures decreased the most, with an intraday decrease of 321 lots [23].