What Is the Relationship Between 13-Week Treasury Bill Index and 30-Year Treasury Bond Index?

What Is the Relationship Between 13 Week Treasury Bill Index and 30-Year Treasury Bond Index can be summarized as:

• The 13-week Treasury Bill index influences the 30-Year Treasury Bond Index and moves in the same directioin.
• The 30-Year Treasury Bond Index moves slower than the 13-week Treasury Bill index.

Compare:
   13 WEEK TREASURY BILL
   Cboe Indices: ^IRX
   2026-06-18: 3.65800023 Percent
with:
   Treasury Yield 30 Years
   Cboe Indices: ^TYX
   2026-06-18: 4.90100002 Percent

          13 WEEK TREASURY BI  Treasury Yield 30 Y
                ^IRX  Growth%        ^TYX  Growth%
           ---------- -------   ---------- -------
2026-06-18       3.66  100.00         4.90  100.00
2026-06-12       3.62   98.91         4.97  101.51
2026-06-11       3.62   99.04         4.95  101.02
2026-06-10       3.63   99.37         5.03  102.53
2026-06-09       3.63   99.37         5.01  102.24
2026-06-08       3.63   99.18         5.02  102.51
2026-06-05       3.63   99.10         5.00  102.00
2026-06-04       3.62   98.96         4.98  101.57
2026-06-03       3.62   99.04         4.99  101.82
2026-06-02       3.62   98.91         4.97  101.35
2026-06-01       3.62   98.96         4.99  101.84
2026-05-29       3.59   98.09         4.99  101.88
2026-05-28       3.59   98.14         4.99  101.71
2026-05-27       3.59   98.00         5.01  102.24
2026-05-26       3.58   97.92         5.03  102.55
2026-05-22       3.59   98.00         5.06  103.33
2026-05-21       3.58   97.92         5.11  104.31
2026-05-18       3.57   97.54         5.15  105.02
2026-04-18       3.60   98.41         4.89   99.67
2026-03-18       3.61   98.69         4.88   99.59
2026-02-18       3.60   98.50         4.71   96.02
2026-01-18       3.56   97.24         4.84   98.76
2025-12-18       3.52   96.28         4.80   97.92
2025-11-18       3.77  103.12         4.74   96.78
2025-10-18       3.83  104.76         4.60   93.92
2025-09-18       3.88  106.07         4.72   96.31
2025-08-18       4.12  112.71         4.94  100.84
2025-07-18       4.23  115.64         5.00  102.04
2025-06-18       4.22  115.45         4.89   99.88
2024-06-18       5.24  143.19         4.72   96.27
2023-06-18       5.15  140.87         4.02   82.00
2022-06-18       1.60   43.74         2.97   60.68
2021-06-18       0.04    1.09         1.90   38.71
2020-06-18       0.14    3.69         1.20   24.44
2019-06-18       2.04   55.63         2.53   51.56
2018-06-18       1.88   51.39         3.08   62.91
2017-06-18       0.99   27.15         2.90   59.13
2016-06-18       0.25    6.78         2.18   44.52
2015-06-18       0.01    0.27         2.93   59.72
2014-06-18       0.02    0.55         3.31   67.56
2013-06-18       0.03    0.82         3.65   74.39
2012-06-18       0.08    2.19         2.58   52.58
2011-06-18       0.02    0.41         4.13   84.31
2010-06-18       0.17    4.65         3.98   81.15
2009-06-18       0.18    4.92         4.31   87.96
2008-06-18       1.71   46.61         4.60   93.92
2007-06-18       4.67  127.67         4.92  100.43
2006-06-18       4.86  132.86         5.07  103.45
2005-06-18       3.06   83.65         4.47   91.29
2004-06-18       1.30   35.62         5.20  106.20
2003-06-18       0.84   22.91         5.41  110.39
2002-06-18       1.66   45.35         5.30  108.24
2001-06-18       3.56   97.32         5.50  112.26
2000-06-18       5.70  155.82         5.78  117.94
1999-06-18       4.67  127.67         6.10  124.55
1998-06-18       4.97  135.87         5.72  116.65
1997-06-18       5.05  138.05         6.29  128.42
1996-06-18       5.03  137.51         6.97  142.13
1995-06-18       5.43  148.44         6.86  139.87
1994-06-18       4.14  113.18         7.38  150.56
1993-06-18       3.03   82.83         6.57  134.05
1992-06-18       3.57   97.59         7.46  152.21
1991-06-18       5.54  151.45         8.36  170.58
1990-06-18       7.74  211.59         8.42  171.80
1989-06-18       7.99  218.43         7.92  161.60
1988-06-18       6.56  179.33         9.23  188.33
1987-06-18       5.73  156.64         8.89  181.39
1986-06-18       5.96  162.93         7.46  152.21
1985-06-18       6.83  186.71        10.70  218.32
1984-11-01                           11.21  228.73

⇒ NYSE: ^MOVE - ICE BofAML MOVE Index

⇐ Relation of 13Wk T-Bill Index and Fed Interest

⇑ US Treasury Security Indices

⇑⇑ Market Indices