美国财政部拍卖四周期国债，得标利率4.230%

Group 1 - The U.S. Treasury auctioned four-week and eight-week Treasury bills with awarded yields of 4.230% and 4.270% respectively [1] - The bid-to-cover ratio for the four-week Treasury bills was 2.91, indicating strong demand [1] - The bid-to-cover ratio for the eight-week Treasury bills was 2.60, also reflecting solid interest from investors [1]