T-Bill Yields 2009. The interest yields on U.S. Treasury securities in early 2009 fell to very low levels as a result of the combined events surrounding the global financial crisis. Calculate the simple and annualized yields for the 3-month and 6-month Tresury bills auctioned on March 9, 2009, listed here. 6-Month T-Bill 3-Month T-Bill $10,000.00 Treasury bill, face value $10,000.00 Price at sale $9,976.54 $9,993.85 $6.15 Discount $23.46 (Click the icon on the upper-right corner to import the table into a spreadsheet.) The simple yield for the 3-month Treasury bills is %. (Round to four decimal places.)