Fund · iShares iBonds Dec 2029 Term Treasury ETF · measured from SEC filings
IBTJ holdings
IBTJ reports 35 holdings and behaves like 30.7 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: 0.41% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-07-31IBTJ's largest investment is U.S. Treasury Notes at 4.92% of net assets. U.S. Treasury Notes and U.S. Treasury Notes follow; the three together are 14.44%. Ten companies are 40.15% of the fund; the other 25 share the rest. Among the 192 bond funds measured here, IBTJ behaves like 30.7 holdings against a median of 236.4 — 7.7 times more concentrated than the median. Across 25 quarterly filings IBTJ has become less concentrated: it behaved like 3.1 at 2020-04-30 and 26.7 at 2026-04-30. Between the 2026-01-31 and 2026-04-30 filings 3 positions were added and 0 dropped; 6.5% 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, IBTJ went from behaving like 3.1 equally weighted positions to 26.7 — 761% more, while its top ten went from 100% to 46.55% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 32 | 26.7 | 46.55% | 4.95% |
| 2026-01-31 | 29 | 24.5 | 50.24% | 5.17% |
| 2025-10-31 | 27 | 23.6 | 50.36% | 6.05% |
| 2025-07-31 | 27 | 23.6 | 50.34% | 6.04% |
| 2025-04-30 | 24 | 20.7 | 56.67% | 7.19% |
| 2025-01-31 | 24 | 20.7 | 56.65% | 7.19% |
| 2024-10-31 | 22 | 18.9 | 61.97% | 7.16% |
| 2024-07-31 | 19 | 15.7 | 70.3% | 10.31% |
Earlier filings (17 more, back to 2020-04-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 17 | 14.8 | 73.1% | 10.64% |
| 2024-01-31 | 16 | 14.1 | 75.33% | 10.61% |
| 2023-10-31 | 16 | 14.1 | 76.66% | 10.62% |
| 2023-07-31 | 15 | 12.9 | 82.57% | 10.66% |
| 2023-04-30 | 15 | 12.9 | 82.48% | 10.62% |
| 2023-01-31 | 13 | 10.3 | 91.7% | 14.83% |
| 2022-10-31 | 10 | 7.9 | 100% | 18.36% |
| 2022-07-31 | 7 | 5.9 | 100% | 23.25% |
| 2022-04-30 | 7 | 5.7 | 100% | 23.58% |
| 2022-01-31 | 5 | 3.4 | 100% | 38.65% |
| 2021-10-31 | 5 | 3.4 | 100% | 38.47% |
| 2021-07-31 | 5 | 3.4 | 100% | 38.61% |
| 2021-04-30 | 5 | 3.4 | 100% | 38.79% |
| 2021-01-31 | 5 | 3.4 | 100% | 38.88% |
| 2020-10-31 | 5 | 3.4 | 100% | 38.52% |
| 2020-07-31 | 5 | 3.1 | 100% | 40.53% |
| 2020-04-30 | 5 | 3.1 | 100% | 40.63% |
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 35 positions in IBTJ's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: IBTJ.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | United States of America | 4.95% | 5.0% |
| 2 | United States of America | 4.81% | 9.8% |
| 3 | United States of America | 4.78% | 14.5% |
| 4 | United States of America | 4.70% | 19.2% |
| 5 | United States of America | 4.67% | 23.9% |
| 6 | United States of America | 4.61% | 28.5% |
| 7 | United States of America | 4.54% | 33.1% |
| 8 | United States of America | 4.53% | 37.6% |
| 9 | United States of America | 4.50% | 42.1% |
| 10 | United States of America | 4.46% | 46.6% |
| 11 | United States of America | 4.23% | 50.8% |
| 12 | United States of America | 3.97% | 54.8% |
| 13 | United States of America | 3.91% | 58.7% |
| 14 | United States of America | 3.44% | 62.1% |
| 15 | United States of America | 3.24% | 65.3% |
Returns the fund reported
2020-02 – 2026-04Monthly total returns from Item B.5 of IBTJ'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: IBTJ.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-3029 positions became 32: 3 added (6.3% 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: 6.5%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IBTJ 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 |
|---|---|---|---|---|---|
| BlackRock Funds III | 0.28% | 0.49% | United States of America | 2.34% | 1.51% |
| United States of America | 5.15% | 4.53% | |||
| United States of America | 5.07% | 4.50% | |||
| United States of America | 5.09% | 4.54% | |||
| United States of America | 5.10% | 4.61% | |||
| United States of America | 5.10% | 4.70% |
New: United States of America (3.91%), United States of America (1.54%), United States of America (0.81%).
Asset categories and pricing
as of 2026-07-3199.59% debt, 0.41% short-term investment as filed; 0.4% 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 IBTJ (30.7). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| 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 |
| ULST State Street(R) Ultra Short Term Bond ETF | 319 | 26.1 | 48.18% | 2026-06-30 |
| 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 |
| 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 |
| 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 |
Essays that examine IBTJ
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.