Xin Lang Qi Huo·2025-05-21 08:25Core Insights - The Shanghai Stock Exchange 50 Index futures contract closed at 2506 on May 21, with a slight increase of 0.46% and a trading volume of 27,200 contracts, indicating a decrease in trading activity compared to the previous day [1][3]. Trading Data Summary - Total trading volume for all contracts was 36,500 contracts, down by 754 contracts from the previous day [1][4]. - The top 20 positions showed a net short position with a difference of 5,753 contracts [1]. - Long positions in the top 20 decreased by 1,235 contracts to 50,800 contracts, while short positions decreased by 1,127 contracts to 61,600 contracts [1][4]. Major Players - The top three long positions were held by Guotai Junan with 8,465 contracts, CITIC Futures with 8,087 contracts, and Dongzheng Futures with 3,404 contracts [1][3]. - The top three short positions were held by Guotai Junan with 12,165 contracts, CITIC Futures with 8,633 contracts, and GF Futures with 6,432 contracts [1][3]. Position Changes - The top three increases in long positions were from Haitong Futures (+141 contracts), Zhongjin Wealth (+133 contracts), and招商期货 (+104 contracts) [1][3]. - The top three decreases in long positions were from Guotai Junan (-421 contracts), Guoxin Futures (-245 contracts), and Shenyin Wanguo (-180 contracts) [1][3]. - The top three increases in short positions were from CITIC Futures (+72 contracts), Zhongjin Futures (+55 contracts), and Guoxin Futures (+38 contracts) [1][3]. - The top three decreases in short positions were from Guotai Junan (-186 contracts), Dongzheng Futures (-192 contracts), and Guotai Junan (-197 contracts) [1][3].