美国30年期国债期货下跌21点，美国10年期国债期货下跌7点。

Core Viewpoint - The U.S. 30-year Treasury futures declined by 21 points, while the 10-year Treasury futures fell by 7 points [1] Group 1 - The decline in 30-year Treasury futures indicates a potential shift in investor sentiment towards long-term bonds [1] - The drop in 10-year Treasury futures suggests a similar trend in the mid-term bond market [1]