TBFMX Performance — US Treasury 3 Month Bill ETF
Data updated: 2026-07-28
In the 12 months to May 2026 the fund took in a net $1.3B, and assets reached $7.10B.
TBFMX Growth of $100
What $100 invested in US Treasury 3 Month Bill ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Ultrashort Government Bond category average over the same months.
| Period | TBFMX | Category average |
|---|---|---|
| Since data start (Feb 2026 – May 2026) | $101 | $102 |
TBFMX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.07% |
TBFMX Annual Returns
Calendar-year total returns of US Treasury 3 Month Bill ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Feb–May) | +1.07% |
TBFMX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | — | +0.2% | +0.3% | +0.3% | +0.3% | — | — | — | — | — | — | — |
TBFMX Risk
Risk measures from monthly returns over Feb 2026 – May 2026.
- Best month: +0.30% (Mar 2026)
- Worst month: +0.18% (Feb 2026)
TBFMX Fund Flows
Monthly money in and out of US Treasury 3 Month Bill ETF, from SEC Form N-PORT.
- 12-month net flow: $1.3B
- 12-month gross sales (incl. reinvestments): $14.6B
- Sales ÷ redemptions: 1.09×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $85.8M | $77.9M | $8.0M |
| Apr 2026 | $222.1M | $90.4M | $131.7M |
| Mar 2026 | $579.0M | $20.5M | $558.5M |
| Feb 2026 | $160.8M | $49.9M | $110.9M |
| Jan 2026 | $82.4M | $100.4M | −$18.0M |
| Dec 2025 | $6.4B | $6.4B | −$26.6M |
| Nov 2025 | $219.8M | $68.0M | $151.8M |
| Oct 2025 | $217.2M | $20.5M | $196.7M |
| Sep 2025 | $6.2B | $6.1B | $18.9M |
| Aug 2025 | $301.5M | $130.9M | $170.6M |
| Jul 2025 | $100.9M | $118.3M | −$17.4M |
| Jun 2025 | $101.3M | $128.4M | −$27.1M |
TBFMX Assets Under Management
Net assets of US Treasury 3 Month Bill ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $7.10B |
| 2026-02-28 | $6.40B |
| 2025-11-30 | $6.35B |
| 2025-08-31 | $5.98B |
| 2025-05-31 | $5.86B |
| 2025-02-28 | $5.01B |
| 2024-11-30 | $4.42B |
| 2024-08-31 | $4.11B |
| 2024-05-31 | $3.62B |
| 2024-02-29 | $2.97B |
| 2023-11-30 | $2.70B |
| 2023-08-31 | $1.75B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.