国债期货跌幅扩大，30年期主力合约跌0.30%

Group 1 - The core viewpoint of the news is that treasury futures have experienced a decline, with the 30-year main contract dropping by 0.30%, the 10-year main contract falling by 0.05%, the 5-year main contract decreasing by 0.07%, and the 2-year main contract declining by 0.02% [1] Group 2 - The news indicates a broad downward trend in treasury futures, suggesting potential shifts in investor sentiment and market dynamics [1]