State Street(R) SPDR(R) Portfolio Long Term Treasury ETF
SPDR SERIES TRUST · Series S000017329 · 1 share classes
data updated 2026-08-10
Fund profile
As filed in the prospectus · 2025 Q4
The State Street SPDR Portfolio Long Term Treasury ETF (the Fund) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the long term (10+ years) sector of the United States Treasury market.
The fund tracks the Bloomberg Long U.S. Treasury Index using a sampling strategy, holding a subset of the index's securities selected to replicate its risk and return characteristics. Because the fund samples rather than holds all index constituents, its performance may diverge from the index. The fund invests at least 80% of assets in index securities or economically identical substitutes, with the remainder in cash, money market instruments, or other debt securities for cash management.
| Share class | Expense ratio |
|---|---|
| SPTL | 0.03% |
Portfolio turnover 4.00% · as of 2025 Q4
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q1
| Bonds | 98.95% |
| Cash & short-term | 0.10% |
Latest quarter
What changed since the fund's previous filing
Largest new: United States Treasury ×2
Exited: United States Treasury
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Feb 2026
Mar 2026 has been filed since the trailing figures were struck, so it is not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-03-31
Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.
| Fixed rate | 100.0% |
Share of the fund's debt value in each maturity band, shortest first.
| 10y+ | 100.0% |
Based on what filers reported; a filer that never reported a flag also reads as none.
Risk profile
Interest-rate and credit-spread sensitivity, both in years · as of 2026Q1
This fund filed the credit-spread disclosure and reported no sensitivity — measured, and the answer is none.
Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.
| Interest rates | 100% |
Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.
Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.
| 3 mo | 0.01 yr | 0% |
| 1 yr | 0.18 yr | 1% |
| 5 yr | 0.78 yr | 5% |
| 10 yr | 6.60 yr | 47% |
| 30 yr | 6.58 yr | 46% |
Show the numbers
| Tenor | Rate yrs | IG yrs | HY yrs | IG $/bp | HY $/bp |
|---|---|---|---|---|---|
| 3 mo | +0.01 | +0.00 | +0.00 | $0 | $0 |
| 1 yr | +0.18 | +0.00 | +0.00 | $0 | $0 |
| 5 yr | +0.78 | +0.00 | +0.00 | $0 | $0 |
| 10 yr | +6.60 | +0.00 | +0.00 | $0 | $0 |
| 30 yr | +6.58 | +0.00 | +0.00 | $0 | $0 |
Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Value | Shares |
|---|---|---|---|---|
| — | United States Treasury4.75% · due 2055-05-15 | 2.31% | $241.57M | — |
| — | United States Treasury4.75% · due 2055-08-15 | 2.29% | $239.59M | — |
| — | United States Treasury4.63% · due 2055-11-15 | 2.26% | $236.85M | — |
| — | United States Treasury4.63% · due 2054-05-15 | 2.25% | $235.18M | — |
| — | United States Treasury4.63% · due 2055-02-15 | 2.23% | $233.47M | — |
| — | United States Treasury4.75% · due 2053-11-15 | 2.21% | $230.92M | — |
| — | United States Treasury4.50% · due 2054-11-15 | 2.20% | $230.14M | — |
| — | United States Treasury4.25% · due 2054-02-15 | 2.13% | $222.41M | — |
| — | United States Treasury4.25% · due 2054-08-15 | 2.09% | $218.67M | — |
| — | United States Treasury4.13% · due 2053-08-15 | 1.88% | $196.31M | — |
Top 10 positions are 21.83% of net assets, top 25 44.06%, across 2 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
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