Fund · iShares iBonds Dec 2028 Term Treasury ETF · measured from SEC filings
IBTI holdings
IBTI reports 46 holdings and behaves like 42.3 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-07-31. The fact sheet publishes the first number; this page computes the second, and traces it across 25 quarters of filings.
Measured concentration
as of 2026-07-31Computed 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: 0.3% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-07-31IBTI's largest investment is U.S. Treasury Notes at 4.6% of net assets. U.S. Treasury Notes and U.S. Treasury Notes follow; the three together are 10.27%. Ten companies are 26.99% of the fund; the other 36 share the rest. Among the 192 bond funds measured here, IBTI behaves like 42.3 holdings against a median of 236.4 — 5.6 times more concentrated than the median. Across 25 quarterly filings IBTI has become less concentrated: it behaved like 3.7 at 2020-04-30 and 38.7 at 2026-04-30. Between the 2026-01-31 and 2026-04-30 filings 1 positions were added and 0 dropped; 5.6% of the weight moved.
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 2020
25Between 2020-04-30 and 2026-04-30, IBTI went from behaving like 3.7 equally weighted positions to 38.7 — 946% more, while its top ten went from 100% to 29.47% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 42 | 38.7 | 29.47% | 4.64% |
| 2026-01-31 | 41 | 38.1 | 28.79% | 2.99% |
| 2025-10-31 | 36 | 25.5 | 49.33% | 5.15% |
| 2025-07-31 | 32 | 23.7 | 52.58% | 5.68% |
| 2025-04-30 | 25 | 19.3 | 60.53% | 9.54% |
| 2025-01-31 | 23 | 17.1 | 66.85% | 9.51% |
| 2024-10-31 | 23 | 17.3 | 66.51% | 9.49% |
| 2024-07-31 | 23 | 17.2 | 66.49% | 9.74% |
Earlier filings (17 more, back to 2020-04-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 22 | 16.9 | 68.17% | 10.08% |
| 2024-01-31 | 22 | 16.7 | 68.36% | 10.52% |
| 2023-10-31 | 18 | 15.3 | 72.97% | 10.51% |
| 2023-07-31 | 18 | 15.3 | 72.95% | 10.49% |
| 2023-04-30 | 16 | 14.2 | 75.54% | 10.49% |
| 2023-01-31 | 15 | 13.4 | 77.52% | 10.47% |
| 2022-10-31 | 15 | 13.1 | 80.93% | 10.5% |
| 2022-07-31 | 15 | 13.1 | 81.02% | 10.51% |
| 2022-04-30 | 14 | 12.8 | 83.53% | 10.56% |
| 2022-01-31 | 13 | 9.7 | 96.48% | 16.38% |
| 2021-10-31 | 10 | 6.7 | 100% | 25.48% |
| 2021-07-31 | 9 | 5.1 | 100% | 29.04% |
| 2021-04-30 | 9 | 3.9 | 100% | 36.44% |
| 2021-01-31 | 8 | 3.8 | 100% | 36.52% |
| 2020-10-31 | 7 | 3.9 | 100% | 36.81% |
| 2020-07-31 | 7 | 3.8 | 100% | 36.96% |
| 2020-04-30 | 7 | 3.7 | 100% | 37.14% |
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 2026-04-30The 15 largest of 46 positions in IBTI's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: IBTI.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | United States of America | 4.64% | 4.6% |
| 2 | United States of America | 2.86% | 7.5% |
| 3 | United States of America | 2.85% | 10.3% |
| 4 | United States of America | 2.76% | 13.1% |
| 5 | United States of America | 2.74% | 15.8% |
| 6 | United States of America | 2.74% | 18.6% |
| 7 | United States of America | 2.73% | 21.3% |
| 8 | United States of America | 2.73% | 24.0% |
| 9 | United States of America | 2.73% | 26.8% |
| 10 | United States of America | 2.71% | 29.5% |
| 11 | United States of America | 2.70% | 32.2% |
| 12 | United States of America | 2.70% | 34.9% |
| 13 | United States of America | 2.70% | 37.6% |
| 14 | United States of America | 2.68% | 40.3% |
| 15 | United States of America | 2.67% | 42.9% |
Returns the fund reported
2020-02 – 2026-04Monthly total returns from Item B.5 of IBTI's own filings, 75 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference 0.04 percentage points over 74 months, which is roughly the distributions. Every month with the filing it came from: IBTI.json · all funds.
Who borrows IBTI's shares
2021-04-30The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2021-04-30, $196,020 was out to 1 borrower, 0.50% of net assets.
| Borrower | On loan | Share of the loan |
|---|---|---|
| GOLDMAN SACHS & CO. | $196,020 | 100.0% |
The filing reports no cash collateral position against this loan. Collateral taken in a form the fund does not hold as a position does not appear in N-PORT, so this is silence rather than absence. What the collateral figure can and cannot show. Every quarter IBTI has filed, with each borrower: IBTI.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-3041 positions became 42: 1 added (2.7% of the fund at the later date), 0 dropped (0.0% at the earlier date). Half the sum of all weight changes, a turnover proxy: 5.6%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IBTI compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-01-31 | 2026-04-30 | Largest decreases | 2026-01-31 | 2026-04-30 |
|---|---|---|---|---|---|
| United States of America | 2.08% | 4.64% | United States of America | 2.76% | 2.47% |
| BlackRock Funds III | 0.25% | 0.54% | United States of America | 2.73% | 2.45% |
| United States of America | 2.52% | 2.53% | United States of America | 2.74% | 2.46% |
| United States of America | 2.77% | 2.50% | |||
| United States of America | 2.75% | 2.48% | |||
| United States of America | 2.54% | 2.27% |
New: United States of America (2.70%).
Asset categories and pricing
as of 2026-07-3199.70% debt, 0.30% short-term investment as filed; 0.3% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of IBTI (42.3). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| FSTB Fidelity Short-Term Bond Fund | 463 | 33.1 | 44.65% | 2026-05-31 |
| APCB ActivePassive Core Bond ETF | 1,843 | 33.8 | 32.97% | 2026-05-31 |
| SCHP Schwab U.S. TIPS ETF | 49 | 36.2 | 36.43% | 2026-06-30 |
| TIP iShares TIPS Bond ETF | 49 | 36.3 | 35.76% | 2026-07-31 |
| TLH iShares 10-20 Year Treasury Bond ETF | 67 | 37.2 | 37.79% | 2026-05-31 |
| XTEN BondBloxx Bloomberg Ten Year Target Duration US Treasury ETF | 70 | 45.7 | 34.06% | 2026-07-31 |
| IBTH iShares iBonds Dec 2027 Term Treasury ETF | 52 | 45.9 | 27.43% | 2026-07-31 |
| BSJR Invesco BulletShares 2027 High Yield Corporate Bond ETF | 103 | 47 | 30.71% | 2026-05-31 |
| EVTR Eaton Vance Total Return Bond ETF | 905 | 48.8 * | 38.31% | 2026-06-30 |
| VGUS Vanguard Ultra-Short Treasury ETF | 91 | 62.1 | 27.78% | 2026-06-30 |
Essays that examine IBTI
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.