Relation of 13Wk T-Bill Index and Fed Interest

Q

What Is the Relationship Between 13-Week Treasury Bill Index and US Fed Discount Interest Rates?

✍: FYIcenter.com

A

What Is the Relationship Between 13-Week Treasury Bill Index and US Fed Discount Interest Rates can be summarized as:

  • The 13-week Treasury Bill index is closely tied to the Federal Reserve's discount rate.
  • When Federal Reserve raises the discount interest rate, the 13-week Treasury Bill index will go up accordingly.
  • When Federal Reserve lowers the discount interest rate, the 13-week Treasury Bill index will go down accordingly.
Compare:
   13 WEEK TREASURY BILL
   Cboe Indices: ^IRX
   2026-01-23: 3.58200002 Percent
with:
   US Fed Discount Rate
   US: DISC
   2026-01-23: 3.75000000 Percent

          13 WEEK TREASURY BI  US Fed Discount Rat
                ^IRX  Growth%        DISC  Growth%
           ---------- -------   ---------- -------
2026-01-23       3.58  100.00         3.75  100.00
2026-01-22       3.59  100.17         3.75  100.00
2026-01-21       3.59  100.17         3.75  100.00
2026-01-20       3.57   99.72         3.75  100.00
2026-01-16       3.56   99.30         3.75  100.00
2026-01-15       3.57   99.53         3.75  100.00
2026-01-14       3.56   99.39         3.75  100.00
2026-01-13       3.56   99.39         3.75  100.00
2026-01-12       3.53   98.63         3.75  100.00
2026-01-09       3.51   98.07         3.75  100.00
2026-01-08       3.51   97.91         3.75  100.00
2026-01-07       3.52   98.13         3.75  100.00
2026-01-06       3.52   98.27         3.75  100.00
2026-01-05       3.52   98.13         3.75  100.00
2026-01-02       3.53   98.63         3.75  100.00
2025-12-31       3.55   99.02         3.75  100.00
2025-12-30       3.54   98.83         3.75  100.00
2025-12-29       3.54   98.77         3.75  100.00
2025-12-26       3.54   98.91         3.75  100.00
2025-12-23       3.55   99.02         3.75  100.00
2025-11-23       3.74  104.41         4.00  106.67
2025-10-23       3.79  105.75         4.25  113.33
2025-09-23       3.85  107.34         4.25  113.33
2025-08-23       4.09  114.13         4.50  120.00
2025-07-23       4.24  118.37         4.50  120.00
2025-06-23       4.16  116.08         4.50  120.00
2025-05-23       4.23  118.09         4.50  120.00
2025-04-23       4.21  117.48         4.50  120.00
2025-03-23       4.18  116.83         4.50  120.00
2025-02-23       4.20  117.17         4.50  120.00
2025-01-23       4.21  117.62         4.50  120.00
2024-01-23       5.20  145.25         5.50  146.67
2023-01-23       4.59  128.00         4.50  120.00
2022-01-23       0.49   13.76         0.25    6.67
2021-01-23       0.01    0.36         0.25    6.67
2020-01-23       0.03    0.84         2.25   60.00
2019-01-23       2.33   64.99         3.00   80.00
2018-01-23       1.67   46.62         2.00   53.33
2017-01-23       0.74   20.60         1.25   33.33
2016-01-23       0.19    5.39         1.00   26.67
2015-01-23       0.03    0.70         0.75   20.00
2014-01-23       0.03    0.78         0.75   20.00
2013-01-23       0.07    1.81         0.75   20.00
2012-01-23       0.07    1.81         0.75   20.00
2011-01-23       0.09    2.51         0.75   20.00
2010-01-23       0.15    4.19         0.50   13.33
2009-01-23       0.20    5.58         0.50   13.33
2008-01-23       1.27   35.59         4.00  106.67
2007-01-23       4.89  136.66         6.25  166.67
2006-01-23       4.51  126.05         5.25  140.00
2005-01-23       2.72   75.99         3.25   86.67
2004-01-23       0.92   25.77         2.00   53.33
2003-01-23       1.09   30.43         2.25   60.00
2002-01-23       1.74   48.58                     
2001-01-23       4.18  116.69                     
2000-01-23       5.72  159.69                     
1999-01-23       4.36  121.72                     
1998-01-23       4.99  139.31                     
1997-01-23       5.17  144.33                     
1996-01-23       5.00  139.59                     
1995-01-23       5.70  159.13                     
1994-01-23       3.47   96.87                     
1993-01-23       2.89   80.68                     
1992-01-23       4.05  113.07                     
1991-01-23       5.74  160.25                     
1990-01-23       7.80  217.76                     
1989-01-23       8.90  248.46                     
1988-01-23       5.71  159.41                     
1987-01-23       5.61  156.62                     
1986-01-23       6.34  177.00                     
1985-01-23       8.18  228.36                     
1985-01-01       8.18  228.36                     

 

Relation of 13Wk T-Bill Index and 30Yr Bond

Cboe Indices: ^TYX - Treasury Yield 30 Years

US Treasury Security Indices

⇑⇑ Market Indices

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