4-month par yield on Treasuries (percentage points; constant maturity; nominal) - United States - Department of the Treasury - Daily
This series is part of the dataset: US Treasury constant-maturity par yields (Department of the Treasury)
Download Full Dataset (.xlsx)Latest updates. According to data published by the US Treasury, the par yield on 4-month US government bonds was 3.70 percent on 31 March 2026, compared to 3.71 on the previous day.
Sample. There are 860 data points in the daily time series displayed in the graph above. The period covered by the series stretches from October 2022 to March 2026.
History. Here's a glimpse of a few descriptive statistics we computed on the full sample: the yield had an average value of 4.77 percent; it hit a maximum of 5.64 on 6 October 2023; it hit a trough of 3.58 on 6 January 2026.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-03-27 | 3.72 |
| 2026-03-30 | 3.71 |
| 2026-03-31 | 3.7 |
Heads-up. Our metadata often contain references to the sources of the time-series data shown on FetchSeries. You can use these references to find additional information.
Not for investment purposes. Any financial data shared on FetchSeries are not suitable for investment purposes or as a basis for making financial decisions. Users should ask for professional advice and perform independent analysis before making any financial commitments.
Series Metadata
| Field | Value |
|---|---|
| Description | 4-month yield US Treasury par yield curve |
| Country | United States |
| Economic concept | Interest rate |
| Data type | Constant-maturity nominal par yield |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | U.S. Department of the Treasury |
| Source type | Federal Administration |
| Data licence | Not copyrightable under U.S. law |
| Measure type | Interpolated level (constant maturity) |
Series in the same data set
Discover the other time series included in this data set.
Nominal yields
Real yields
| Series Name | Observations | Start Date | End Date |
|---|---|---|---|
| 5-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5814 | 2003-01-02 | 2026-03-31 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5814 | 2003-01-02 | 2026-03-31 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5814 | 2003-01-02 | 2026-03-31 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5423 | 2004-07-27 | 2026-03-31 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 4029 | 2010-02-22 | 2026-03-31 |