美国财政部拍卖四周期国债，得标利率4.290%（7月24日为4.245%），投标倍数2.63（前次为2.69）。拍卖八周期国债，得标利率4.290%（前次为4.265%），投标倍数2.52（前次为2.63）。

Core Points - The U.S. Treasury auctioned four-year and eight-year government bonds with a winning yield of 4.290% for both maturities, reflecting an increase from the previous auction yields of 4.245% and 4.265% respectively [1] - The bid-to-cover ratio for the four-year bonds was 2.63, slightly down from the previous ratio of 2.69, while the eight-year bonds had a bid-to-cover ratio of 2.52, also lower than the prior 2.63 [1]