Group 1: Futures Contract Trading Information - The trading volume of IF2509 is 56,221 lots, with a transaction amount of 6.58 billion yuan. Its opening price is 3,911, the highest price is 3,931.4, the lowest price is 3,874, the closing price is 3,876.6, and the price drops by 0.74% compared to the previous settlement price. The open interest is 139,367 lots, with an increase of 3,684 lots [3]. - The trading volume of IC2507 is 36,609 lots, with a transaction amount of 4.28 billion yuan. Its opening price is 5,828.8, the highest price is 5,882.6, the lowest price is 5,806.8, the closing price is 5,827, and the price rises by 0.23% compared to the previous settlement price. The open interest is 77,537 lots, with an increase of 1,525 lots [3]. - The trading volume of IM2509 is 113,010 lots, with a transaction amount of 13.86 billion yuan. Its opening price is 6,120, the highest price is 6,174.4, the lowest price is 6,100.6, the closing price is 6,110.8, and the price rises by 0.10% compared to the previous settlement price. The open interest is 167,757 lots, with an increase of 6,063 lots [3]. - The trading volume of IH2509 is 32,852 lots, with a transaction amount of 2.66 billion yuan. Its opening price is 2,714, the highest price is 2,725, the lowest price is 2,678.4, the closing price is 2,680, and the price drops by 1.17% compared to the previous settlement price. The open interest is 53,070 lots, with an increase of 4,634 lots [3].