根据合并数据显示，多头前三席位为中信期货，总持仓28582、国泰君安期货，总持仓17648、广发期货，总持仓12115；空头前三 席位为国泰君安期货，总持仓26832、中信期货，总持仓23401、东证期货，总持仓15655； 主力合约前20席位中，多头增仓前三名分别是：建信期货、持仓6218、增仓1947，永安期货、持仓9487、增仓1348，国泰君安期 货、持仓17648、增仓808；多头减仓前三名分别是：中信期货、持仓28582、减仓-1980，中信建投、持仓9865、减仓-639，申银 万国、持仓5166、减仓-518； 新浪期货 根据交易所数据，截至4月30日收盘主力合约碳酸锂2507,涨跌-0.78%,成交量11.45万手，持仓数据显示前20席位呈现净 空，差额头寸为3362手。 碳酸锂期货全合约总计成交15.55万手，比上一日减少1.55万手。全合约前20席位多头持仓16.28万手，比上一日减少1075手。全合 约前20席位空头持仓16.62万手，比上一日增加904手。 主力合约前20席位中，空头增仓前三名分别是：申银万国、持仓6080、增仓1548，方正中期、持仓5809、增仓1049，银河期货 ...

根据合并数据显示，多头前三席位为中信期货，总持仓66452、国泰君安，总持仓40166、银河期货，总持仓18789；空头前三席位 为国泰君安，总持仓56078、银河期货，总持仓33108、东证期货，总持仓29335； 主力合约前20席位中，多头增仓前三名分别是：东吴期货、持仓4095、增仓650，中信期货、持仓17678、增仓611，银河期货、持 仓8630、增仓506；多头减仓前三名分别是：国泰君安、持仓15067、减仓-2147，招商期货、持仓2767、减仓-628，金瑞期货、持 仓4568、减仓-597； 新浪期货 根据交易所数据，截至4月30日收盘主力合约铝2506,涨跌-0.05%,成交量12.70万手，持仓数据显示前20席位呈现净多，差 额头寸为2541手。 铝期货全合约总计成交21.77万手，比上一日新增3.85万手。全合约前20席位多头持仓34.69万手，比上一日减少4789手。全合约前 20席位空头持仓34.96万手，比上一日减少7041手。 主力合约前20席位中，空头增仓前三名分别是：国贸期货、持仓4870、增仓857，银河期货、持仓12347、增仓307，申万期货、持 仓4820、增仓2 ...

Core Insights - The main contract of the CSI 500 Index futures closed at 2506 with a decrease of 0.52% as of April 28, 2025, with a trading volume of 37,100 contracts and a net short position among the top 20 positions of 4,101 contracts [1][3] Trading Volume and Positions - Total trading volume for all contracts was 68,000 contracts, a decrease of 12,900 contracts from the previous day [1] - Among the top 20 positions, long positions totaled 148,200 contracts, down by 4,058 contracts, while short positions totaled 157,400 contracts, down by 4,348 contracts [1][4] Major Players - The top three long positions were held by CITIC Futures with a total of 31,873 contracts, Guotai Junan with 24,800 contracts, and Haitong Futures with 13,541 contracts [1][4] - The top three short positions were also held by CITIC Futures with 35,784 contracts, Guotai Junan with 21,774 contracts, and Haitong Futures with 14,260 contracts [1][4] Changes in Positions - The top three increases in long positions were from Dongzheng Futures (5,286 contracts, up by 177), Huatai Futures (2,689 contracts, up by 120), and Guoxin Futures (1,646 contracts, up by 110) [1] - The top three decreases in long positions were from Guotai Junan (14,817 contracts, down by 889), Guotou Futures (4,889 contracts, down by 449), and Haitong Futures (4,014 contracts, down by 138) [1] - The top three increases in short positions were from GF Futures (2,322 contracts, up by 77), Guoxin Futures (2,412 contracts, up by 74), and招商期货 (2,559 contracts, up by 62) [1] - The top three decreases in short positions were from Guotai Junan (9,833 contracts, down by 1,079), Haitong Futures (5,886 contracts, down by 330), and CITIC Futures (19,175 contracts, down by 310) [1]

| | 名次 会员名称 成交量(双边) | | 増減 | 会员 | 持买单 | 增减 | 会员 | 持卖单 | 增减 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | T | 国泰君安 | 277,498 | -58,336 | 国泰君安 | 14,208 | -873 | 中信期货 | 11,917 | -516 | | 2 | 中信期货 | 237,773 | -46,994 | 中信期货 | 11,729 | -4,181 | 国泰君安 | 7,408 | -68 | | 3 | 银河期货 | 122,097 | -9,224 | 东证期货 | 8,568 | -658 | を泰期货 | 6,605 | 341 | | ব | 中泰期货 | 120,653 | -12,584 | 永安期货 | 8,329 | 317 | 东证期货 | 4,689 | -1,405 | | 5 | 东证期货 | 106,069 | -15,295 | 招商期货 | 5,768 | -323 | を電期货 | 4,435 | -469 | | ...