SPTB Performance — State Street(R) SPDR(R) Portfolio Treasury ETF
Data updated: 2026-09-11
SPTB returned +0.38% year to date and +2.71% over one year to Jun 2026. Over one year the fund trailed its Intermediate Government Bond category average: $100 grew to $103, against $103 for the category. Volatility over the past 12 months was 3.09% a year. In the 12 months to Jun 2026 the fund took in a net $196.7M, and assets reached $285.45M.
SPTB Growth of $100
What $100 invested in State Street(R) SPDR(R) Portfolio Treasury ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Government Bond category average over the same months.
| Period | SPTB | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $103 | $103 |
| Since data start (May 2024 – Jun 2026) | $109 | $112 |
SPTB Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.38% |
| 1 year | +2.71% |
| 3 years (annualised) | +4.12% |
SPTB Annual Returns
Calendar-year total returns of State Street(R) SPDR(R) Portfolio Treasury ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.38% |
| 2025 | +6.22% |
| 2024 (May–Dec) | +2.37% |
SPTB 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 | 0.0% | +1.8% | −1.7% | −0.1% | +0.1% | +0.3% | — | — | — | — | — | — |
| 2025 | +0.5% | +2.2% | +0.2% | +0.6% | −1.0% | +1.3% | −0.4% | +1.1% | +0.9% | +0.6% | +0.6% | −0.4% |
| 2024 | — | — | — | — | −0.1% | +1.0% | +2.2% | +1.3% | +1.2% | −2.4% | +0.9% | −1.6% |
SPTB Risk
Risk measures from monthly returns over Jul 2025 – Jun 2026.
- 1-year volatility (annualised): 3.09%
- Best month: +1.82% (Feb 2026)
- Worst month: −1.73% (Mar 2026)
SPTB Fund Flows
Monthly money in and out of State Street(R) SPDR(R) Portfolio Treasury ETF, from SEC Form N-PORT.
- 12-month net flow: $196.7M
- 12-month gross sales (incl. reinvestments): $293.6M
- Sales ÷ redemptions: 3.03×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $18.0M | $3.0M | $15.0M |
| May 2026 | $83.9M | $0 | $83.9M |
| Apr 2026 | $9.0M | $0 | $9.0M |
| Mar 2026 | $118.3M | $93.9M | $24.4M |
| Feb 2026 | $6.1M | $0 | $6.1M |
| Jan 2026 | $0 | $0 | $0 |
| Dec 2025 | $3.1M | $0 | $3.1M |
| Nov 2025 | $52.1M | $0 | $52.1M |
| Oct 2025 | $3.1M | $0 | $3.1M |
| Sep 2025 | $0 | $0 | $0 |
| Aug 2025 | $0 | $0 | $0 |
| Jul 2025 | $0 | $0 | $0 |
SPTB Assets Under Management
Net assets of State Street(R) SPDR(R) Portfolio Treasury ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $285.45M |
| 2026-03-31 | $178.53M |
| 2025-12-31 | $149.15M |
| 2025-09-30 | $91.86M |
| 2025-06-30 | $91.46M |
| 2025-03-31 | $91.66M |
| 2024-12-31 | $80.72M |
| 2024-09-30 | $28.17M |
| 2024-06-30 | $24.18M |
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.