3-Month Treasury Bill Secondary Market Rate, Discount Basis (TB3MS)
Interest RatesHistorical observations, changes, statistics, and downloadable data.
Download all available observations as a spreadsheet-ready file, or pull the series in code or AI through the economic data API or MCP.
Download CSVYou came from your AI assistant. Add Equibles to it and ask about this data directly, free.
Statistics
82 observations · Jan 1, 2020–Oct 1, 2026Latest
4.05
Percent ·
+2.79%
Mean
2.87
Median
3.72
Std Dev
2.07
Min
0.02
Max
5.34
3-Month Treasury Bill Secondary Market Rate, Discount Basis (Percent)
Observations (82 total)
Showing 1–82 of 82 observations, newest first.
| Date | Value |
|---|---|
| 2026-10-01 | 4.05 |
| 2026-09-01 | 3.94 |
| 2026-08-01 | 3.72 |
| 2026-07-01 | 3.73 |
| 2026-06-01 | 3.66 |
| 2026-05-01 | 3.60 |
| 2026-04-01 | 3.61 |
| 2026-03-01 | 3.61 |
| 2026-02-01 | 3.60 |
| 2026-01-01 | 3.57 |
| 2025-12-01 | 3.59 |
| 2025-11-01 | 3.78 |
| 2025-10-01 | 3.82 |
| 2025-09-01 | 3.92 |
| 2025-08-01 | 4.12 |
| 2025-07-01 | 4.25 |
| 2025-06-01 | 4.23 |
| 2025-05-01 | 4.25 |
| 2025-04-01 | 4.21 |
| 2025-03-01 | 4.20 |
| 2025-02-01 | 4.22 |
| 2025-01-01 | 4.21 |
| 2024-12-01 | 4.27 |
| 2024-11-01 | 4.42 |
| 2024-10-01 | 4.51 |
| 2024-09-01 | 4.72 |
| 2024-08-01 | 5.05 |
| 2024-07-01 | 5.20 |
| 2024-06-01 | 5.24 |
| 2024-05-01 | 5.25 |
| 2024-04-01 | 5.24 |
| 2024-03-01 | 5.24 |
| 2024-02-01 | 5.24 |
| 2024-01-01 | 5.22 |
| 2023-12-01 | 5.24 |
| 2023-11-01 | 5.27 |
| 2023-10-01 | 5.34 |
| 2023-09-01 | 5.32 |
| 2023-08-01 | 5.30 |
| 2023-07-01 | 5.25 |
| 2023-06-01 | 5.16 |
| 2023-05-01 | 5.14 |
| 2023-04-01 | 4.92 |
| 2023-03-01 | 4.69 |
| 2023-02-01 | 4.65 |
| 2023-01-01 | 4.54 |
| 2022-12-01 | 4.25 |
| 2022-11-01 | 4.15 |
| 2022-10-01 | 3.72 |
| 2022-09-01 | 3.13 |
| 2022-08-01 | 2.63 |
| 2022-07-01 | 2.23 |
| 2022-06-01 | 1.49 |
| 2022-05-01 | 0.98 |
| 2022-04-01 | 0.76 |
| 2022-03-01 | 0.44 |
| 2022-02-01 | 0.33 |
| 2022-01-01 | 0.15 |
| 2021-12-01 | 0.06 |
| 2021-11-01 | 0.05 |
| 2021-10-01 | 0.05 |
| 2021-09-01 | 0.04 |
| 2021-08-01 | 0.05 |
| 2021-07-01 | 0.05 |
| 2021-06-01 | 0.04 |
| 2021-05-01 | 0.02 |
| 2021-04-01 | 0.02 |
| 2021-03-01 | 0.03 |
| 2021-02-01 | 0.04 |
| 2021-01-01 | 0.08 |
| 2020-12-01 | 0.09 |
| 2020-11-01 | 0.09 |
| 2020-10-01 | 0.10 |
| 2020-09-01 | 0.11 |
| 2020-08-01 | 0.10 |
| 2020-07-01 | 0.13 |
| 2020-06-01 | 0.16 |
| 2020-05-01 | 0.13 |
| 2020-04-01 | 0.14 |
| 2020-03-01 | 0.29 |
| 2020-02-01 | 1.52 |
| 2020-01-01 | 1.52 |
Use this data anywhere
Everything on this page is also served by the Equibles API and MCP server — plug it into Claude, your agents, or your own code. A free account includes an API key.