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 Treasury bill, face value Price at sale Discount 3-Month T-Bill $10,000.00 $9,993 94 $6.06 6-Month T-Bill $10,000.00 $9,976,88 $23.12 (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.):