Fund · State Street(R) Ultra Short Term Bond ETF · measured from SEC filings
ULST holdings
ULST reports 319 holdings and behaves like 26.1 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-06-30. The fact sheet publishes the first number; this page computes the second, and traces it across 28 quarters of filings.
Measured concentration
as of 2026-06-30Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 8.87% at a quoted market price (level 1), 15 issuer countries.
What stands out
as of 2026-06-30ULST's largest investment is U.S. Treasury Notes at 12.16% of net assets. U.S. Treasury Bills and State Street Institutional US Government Money Market Fund follow; the three together are 29.15%. Ten companies are 48.18% of the fund; the other 309 share the rest. Among the 192 bond funds measured here, ULST behaves like 26.1 holdings against a median of 236.4 — 9.1 times more concentrated than the median. Across 28 quarterly filings ULST has become more concentrated: it behaved like 96.2 at 2019-09-30 and 26.1 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 25 positions were added and 98 dropped; 36.9% of the weight moved. the United States is the largest country at 85.5% of the portfolio, across 15 countries in the filing.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable bond funds on this site. Nothing here is a view on the fund.
Every filing since 2019
28Between 2019-09-30 and 2026-06-30, ULST went from behaving like 96.2 equally weighted positions to 26.1 — 73% fewer, while its top ten went from 19.9% to 48.18% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-06-30 | 319 | 26.1 | 48.18% | 12.2% |
| 2026-03-31 | 391 | 20.2 | 52.61% | 11.91% |
| 2025-12-31 | 358 | 23.7 | 49.86% | 11.36% |
| 2025-09-30 | 364 | 20.9 | 49.16% | 13.7% |
| 2025-06-30 | 169 | 26.7 | 46.89% | 11.43% |
| 2025-03-31 | 116 | 18.6 | 53.7% | 14.33% |
| 2024-12-31 | 117 | 16.9 | 52.31% | 15.94% |
| 2024-09-30 | 133 | 25.7 | 46.72% | 13.17% |
Earlier filings (20 more, back to 2019-09-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-06-30 | 146 | 29.3 | 42.24% | 12.59% |
| 2024-03-31 | 157 | 44.8 | 35.58% | 7.38% |
| 2023-12-31 | 167 | 53.5 | 31.72% | 6.98% |
| 2023-09-30 | 162 | 28 | 40.17% | 14.46% |
| 2023-06-30 | 169 | 34.5 | 38.36% | 10.87% |
| 2023-03-31 | 169 | 43 | 36.65% | 9.52% |
| 2022-12-31 | 144 | 23.2 | 46.12% | 15.75% |
| 2022-09-30 | 140 | 21.1 | 45.85% | 17.4% |
| 2022-06-30 | 133 | 38.7 | 41.31% | 8.38% |
| 2022-03-31 | 151 | 28.7 | 42.91% | 13.53% |
| 2021-12-31 | 157 | 21.9 | 40.14% | 18.67% |
| 2021-09-30 | 152 | 30 | 33.92% | 15.8% |
| 2021-06-30 | 148 | 30.4 | 34.24% | 15.62% |
| 2021-03-31 | 147 | 31.8 | 32.66% | 15.24% |
| 2020-12-31 | 158 | 74.6 | 23.75% | 6.63% |
| 2020-09-30 | 156 | 73.1 | 22.86% | 7.48% |
| 2020-06-30 | 172 | 96.5 | 20.34% | 3.93% |
| 2020-03-31 | 162 | 84.1 | 22.74% | 4.84% |
| 2019-12-31 | 147 | 93.8 | 19.54% | 3.55% |
| 2019-09-30 | 158 | 96.2 | 19.9% | 3.47% |
One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.
Largest positions, as filed
as of 2026-06-30The 15 largest of 319 positions in ULST's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: ULST.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | United States Treasury | 12.20% | 12.2% |
| 2 | United States Treasury | 9.42% | 21.6% |
| 3 | State Street Global Advisors | 8.87% | 30.5% |
| 4 | United States Treasury | 4.70% | 35.2% |
| 5 | United States Treasury | 3.42% | 38.6% |
| 6 | United States Treasury | 3.26% | 41.9% |
| 7 | ATHENE GLOBAL FUNDING | 2.67% | 44.5% |
| 8 | TORONTO-DOMINION BANK | 1.87% | 46.4% |
| 9 | ATHENE GLOBAL FUNDING | 1.50% | 47.9% |
| 10 | TRUIST BANK | 1.49% | 49.4% |
| 11 | MICROSOFT CORP | 1.36% | 50.8% |
| 12 | CHEVRON PHILLIPS CHEM CO | 1.25% | 52.0% |
| 13 | CHARLES SCHWAB CORP | 1.15% | 53.2% |
| 14 | MORGAN STANLEY | 1.14% | 54.3% |
| 15 | CARNIVAL CORP LTD | 1.11% | 55.4% |
By country of issuer
as of 2026-06-30Share of ULST's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.
| Country | Share |
|---|---|
| United States | 85.50% |
| Canada | 3.33% |
| Spain | 2.65% |
| Japan | 1.95% |
| Netherlands° | 1.89% |
| United Kingdom | 1.72% |
| Bermuda° | 1.11% |
| Not stated in filing | 0.80% |
Returns the fund reported
2019-07 – 2026-06Monthly total returns from Item B.5 of ULST's own filings, 84 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: ULST.json · all funds.
Since the previous filing
2026-03-31 → 2026-06-30390 positions became 317: 25 added (27.9% of the fund at the later date), 98 dropped (31.6% at the earlier date). Half the sum of all weight changes, a turnover proxy: 36.9%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of ULST compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-03-31 | 2026-06-30 | Largest decreases | 2026-03-31 | 2026-06-30 |
|---|---|---|---|---|---|
| TRUIST BANK | 0.05% | 1.49% | State Street Global Advisors | 11.92% | 8.87% |
| United States Treasury | 11.19% | 12.20% | M&T BANK CORPORATION | 0.86% | 0.40% |
| United States Treasury | 2.91% | 3.42% | DEUTSCHE BANK NY | 0.81% | 0.39% |
| United States Treasury | 2.79% | 3.26% | BARCLAYS PLC | 0.48% | 0.19% |
| MICROSOFT CORP | 1.16% | 1.36% | VISTRA OPERATIONS CO LLC | 0.40% | 0.19% |
| CHEVRON PHILLIPS CHEM CO | 1.06% | 1.25% | ORACLE CORP | 0.34% | 0.21% |
New: United States Treasury (9.42%), United States Treasury (4.70%), ATHENE GLOBAL FUNDING (2.67%), TORONTO-DOMINION BANK (1.87%), ATHENE GLOBAL FUNDING (1.50%), CARNIVAL CORP LTD (1.11%). Gone: United States Treasury (9.61%), United States Treasury (9.57%), Bank of America Credit Card Trust (1.23%), NTT FINANCE CORP (1.20%), VORNADO REALTY LP (1.03%), GENERAL MOTORS FINL CO (0.95%).
Asset categories and pricing
as of 2026-06-30| Asset category (as filed) | Share of investments |
|---|---|
| debt DBT | 75.11% |
| short-term investment STIV | 22.99% |
| mortgage-backed ABS-MBS | 1.04% |
| ABS-O ABS-O | 0.86% |
8.9% of ULST is carried at a quoted market price (fair-value level 1). Categories and levels are the filer's, from Form N-PORT; what a low level-1 share does and does not mean is in the measure's page.
Derivative exposure and counterparties
as of 2026-06-30A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $533M. Notional of an interest-rate or currency swap is not equity exposure.
Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of ULST (26.1). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| VBIL Vanguard 0-3 Month Treasury Bill ETF | 27 | 22.4 | 54.26% | 2026-06-30 |
| IBTK iShares iBonds Dec 2030 Term Treasury ETF | 27 | 22.5 | 52.83% | 2026-07-31 |
| STIP iShares 0-5 Year TIPS Bond ETF | 25 | 23 | 50.2% | 2026-07-31 |
| FTRB Federated Hermes Total Return Bond ETF | 696 | 24.5 | 47.96% | 2026-06-30 |
| AGZ iShares Agency Bond ETF | 100 | 25.5 | 50.6% | 2026-05-31 |
| TIPX State Street(R) SPDR(R) Bloomberg 1-10 Year TIPS ETF | 33 | 29.4 | 39.01% | 2026-06-30 |
| GOVI Invesco Equal Weight 0-30 Year Treasury ETF | 31 | 30 | 33.82% | 2026-05-31 |
| IBTJ iShares iBonds Dec 2029 Term Treasury ETF | 35 | 30.7 | 40.15% | 2026-07-31 |
| TLT iShares 20+ Year Treasury Bond ETF | 47 | 31.3 | 42.23% | 2026-05-31 |
| FSTB Fidelity Short-Term Bond Fund | 463 | 33.1 | 44.65% | 2026-05-31 |
Essays that examine ULST
0Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.