Short-term Treasury yields by month, the reference for fund borrowing costs
Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-08-22, from Covered Call Closed-End Funds vs ETFs.
| month | avg_1_month_yield_pct | avg_3_month_yield_pct |
|---|---|---|
| 2023-08 | 5.54 | 5.56 |
| 2023-09 | 5.53 | 5.56 |
| 2023-10 | 5.57 | 5.6 |
| 2023-11 | 5.53 | 5.52 |
| 2023-12 | 5.54 | 5.44 |
| 2024-01 | 5.54 | 5.45 |
| 2024-02 | 5.49 | 5.44 |
| 2024-03 | 5.51 | 5.47 |
| 2024-04 | 5.48 | 5.44 |
| 2024-05 | 5.5 | 5.45 |
| 2024-06 | 5.46 | 5.51 |
| 2024-07 | 5.48 | 5.43 |
| 2024-08 | 5.5 | 5.3 |
| 2024-09 | 5.06 | 4.92 |
| 2024-10 | 4.92 | 4.72 |
| 2024-11 | 4.71 | 4.62 |
| 2024-12 | 4.5 | 4.39 |
| 2025-01 | 4.42 | 4.34 |
| 2025-02 | 4.37 | 4.33 |
| 2025-03 | 4.37 | 4.34 |
| 2025-04 | 4.35 | 4.32 |
| 2025-05 | 4.37 | 4.36 |
| 2025-06 | 4.24 | 4.42 |
| 2025-07 | 4.37 | 4.41 |
| 2025-08 | 4.46 | 4.3 |
| 2025-09 | 4.24 | 4.07 |
| 2025-10 | 4.15 | 3.98 |
| 2025-11 | 4.03 | 3.94 |
| 2025-12 | 3.77 | 3.68 |
| 2026-01 | 3.73 | 3.67 |
| 2026-02 | 3.72 | 3.69 |
| 2026-03 | 3.74 | 3.72 |
| 2026-04 | 3.69 | 3.7 |
| 2026-05 | 3.71 | 3.69 |
| 2026-06 | 3.69 | 3.81 |
| 2026-07 | 3.74 | 3.87 |
- Rows × columns
- 36 × 3
- Period covered
- to
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
month |
date | 2023-08 to 2026-07 | |
avg_1_month_yield_pct |
number | 3.69 to 5.57 | percent |
avg_3_month_yield_pct |
number | 3.67 to 5.6 | percent |
Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.
the exact SQL behind every number
SELECT
formatDateTime(toStartOfMonth(date), '%Y-%m') AS month,
round(avg(yield_1_month), 2) AS avg_1_month_yield_pct,
round(avg(yield_3_month), 2) AS avg_3_month_yield_pct
FROM global_markets.treasury_yields
WHERE date >= toStartOfMonth(today() - 1090)
AND date < toStartOfMonth(today())
AND yield_1_month > 0
AND yield_3_month > 0
GROUP BY month
ORDER BY month
Run your own version of this
The same 22 years of US equities and 12 years of options data are queryable in SQL or plain English. A free account runs 100 queries a day and takes no card.
More from this analysisCovered Call Closed-End Funds vs ETFs
Monthly cost of a near-the-money call, as a percent of share price
series 18×3
→
Cash distributions over the trailing year, by declared schedule
ranking 5×2
→
Share price indexed to 100, three covered call ETFs, monthly
series 59×4
→
Cash distributions per share, month by month
series 59×4
→
One session, many prices: VOO in half-hour marks, Wednesday July 22, 2026
series 32×3
→
Monthly cash per share: an option income fund and a bond fund
series 24×3
→
See all 2,170 queries →