美国30年期国债拍卖结果良好，整体美债表现涨跌互现。

Core Viewpoint - The auction results for the 30-year U.S. Treasury bonds were positive, indicating strong demand, while the overall performance of U.S. Treasuries showed mixed results [1] Group 1 - The 30-year Treasury bond auction was well-received, reflecting investor confidence in long-term government debt [1] - The overall performance of U.S. Treasuries exhibited fluctuations, with some bonds experiencing gains while others faced declines [1]