美国财政部拍卖六个月期国债，得标利率4.120%，投标倍数3.36。

Core Insights - The U.S. Treasury auctioned six-month Treasury bills with a winning yield of 4.120% [1] - The bid-to-cover ratio for the auction was 3.36, indicating strong demand for the securities [1] Summary by Category Auction Details - The auction involved six-month Treasury bills [1] - The winning yield was recorded at 4.120% [1] - The bid-to-cover ratio was 3.36, reflecting robust investor interest [1]