Treasury bill rate historical data
Daily Treasury Bill Rates: These rates are the daily secondary market quotation on the most recently auctioned Treasury Bills for each maturity tranche (4-week, To access interest rate data in the legacy XML format and the corresponding XSD of interest rates, may result in negative yields for some Treasury securities T-Bill Index. FRN Rate; Yield Curve 125.24 125.26 125.28 125.30 125.32 125.34 T-Bill Index (point) Treasury Bill Index as of Thursday, June 16, 2011.