Sou Hu Cai Jing·2025-05-31 07:49Core Viewpoint - The article discusses the trading data and positions of the CSI 500 index futures as of May 29, 2025, highlighting the increase in both long and short positions among major market participants [1][2]. Group 1: Trading Data Summary - As of May 29, 2025, the main contract for the CSI 500 index futures closed at 2506, with a change of +1.89% and a trading volume of 68,800 contracts [1]. - The total trading volume for all contracts reached 106,300 contracts, an increase of 44,100 contracts compared to the previous day [1]. - The top 20 positions showed a net short position with a difference of 4,600 contracts [1]. Group 2: Positioning Analysis - Among the top 20 positions, long positions totaled 163,700 contracts, an increase of 12,700 contracts from the previous day, while short positions totaled 174,400 contracts, an increase of 15,100 contracts [1]. - The top three long positions were held by CITIC Futures (33,779 contracts), Guotai Junan (32,370 contracts), and Guotai Futures (11,310 contracts) [1]. - The top three short positions were also led by CITIC Futures (34,547 contracts), Guotai Junan (27,079 contracts), and Haitong Futures (18,126 contracts) [1]. Group 3: Changes in Positions - The top three increases in long positions among the main contract were Guotai Junan (+1,509 contracts), Dongzheng Futures (+1,050 contracts), and Zhongtai Futures (+875 contracts) [1]. - The top three decreases in long positions were JPMorgan (-362 contracts), Guoxin Futures (-250 contracts), and Yong'an Futures (-121 contracts) [1]. - For short positions, the top three increases were Haitong Futures (+1,631 contracts), Dongzheng Futures (+1,530 contracts), and Guotai Junan (+1,142 contracts) [1].