s 加安期货 -300 -300 2019 2022 2024 2020 2021 2023 2025 2019 2024 2021 2022 2023 2025 2020 BU02-03 BU03-06 100 100 80 80 60 60 40 40 20 20 0 0 7/1 8/1 4/1 5/1 6/1 3/1 5/1 6/1 7/1 4/1 -20 -20 -40 -40 -60 -60 -80 -80 r -100 -100 2019 2021 2022 2023 2024 2020 2025 2019 ·2020 -2021 2022 - 2024 2025 2023 BU主力合约 BU远期结构 5000 3150 4500 3100 3050 4000 3000 3500 2950 2900 3000 MAR MA 2850 S 2500 2800 3/1 7/1 8/1 9/1 10/1 11/1 12/1 1/1 2/1 4/1 5/1 6/1 BU05 BU06 BU01 BU02 BU03 BU04 2022 -2019 -2020 -2021 -2023 ·2024 - 2025 ...