26日沪深300指数期货下跌0.61%，最新持仓变化

Core Insights - The main contract of the CSI 300 Index futures closed at 2506 on May 26, with a decrease of 0.61% and a trading volume of 62,900 contracts, indicating a net short position among the top 20 positions with a difference of 13,388 contracts [1][3]. Trading Volume and Positions - Total trading volume for all contracts was 86,700 contracts, a decrease of 2,340 contracts from the previous day [1]. - The top 20 positions showed a long position of 162,500 contracts, down by 1,390 contracts, and a short position of 191,700 contracts, down by 1,340 contracts [1][4]. Major Players - The top three long positions were held by Guotai Junan with a total holding of 38,943 contracts, CITIC Futures with 19,308 contracts, and Haitong Futures with 14,213 contracts [1][4]. - The top three short positions were held by CITIC Futures with 42,754 contracts, Guotai Junan with 25,571 contracts, and Haitong Futures with 17,669 contracts [1][4]. Changes in Positions - Among the top 20 positions, the largest increase in long positions was seen in Guoxin Futures with an increase of 236 contracts, while Guotai Junan had the largest decrease in long positions with a reduction of 3,229 contracts [1][3]. - For short positions, Yong'an Futures had the largest increase with 103 contracts, while Guotai Junan had the largest decrease with 3,350 contracts [1][3].