美国财政部拍卖六周期国债，得标利率4.420%，投标倍数3.11。

Core Viewpoint - The U.S. Treasury Department successfully auctioned six-month Treasury bills with a winning yield of 4.420% and a bid-to-cover ratio of 3.11 [1] Group 1 - The auction of six-month Treasury bills indicates strong investor demand, as reflected in the bid-to-cover ratio of 3.11, suggesting that for every dollar of debt offered, there were $3.11 in bids [1] - The winning yield of 4.420% represents a competitive return for investors, aligning with current market interest rates [1]