[U.S. Treasury Auctions 4-Week Treasury Bills with a Winning Yield of 4%] The U.S. Treasury auctioned 4-week Treasury bills with a winning yield of 4% and a bid-to-cover ratio of 2.56; it also auctioned 8-week Treasury bills with a winning yield of 4.050% and a bid-to-cover ratio of 2.26. (Cailian Press)