美国国债收益率曲线趋平，30年期国债收益率下行6个基点。

Core Viewpoint - The yield curve of U.S. Treasury bonds is flattening, with the 30-year Treasury yield decreasing by 6 basis points [1] Group 1 - The flattening of the yield curve indicates a potential shift in investor sentiment regarding long-term economic growth [1] - The decrease in the 30-year Treasury yield suggests a decline in long-term interest rates, which may impact borrowing costs and investment decisions [1]