日本40年期国债收益率上升4个基点至3.1%。

Core Viewpoint - The yield on Japan's 40-year government bonds has increased by 4 basis points to 3.1% [1] Group 1 - The rise in yield indicates a shift in investor sentiment towards long-term government debt in Japan [1] - The increase of 4 basis points reflects broader trends in the bond market and potential inflationary pressures [1] - The current yield level of 3.1% is significant as it marks a notable point in Japan's long-term interest rate environment [1]