Fund · iShares 10+ Year Investment Grade Corporate Bond ETF · measured from SEC filings
IGLB holdings
IGLB reports 3,836 holdings and behaves like 1905.3 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-05-31. The fact sheet publishes the first number; this page computes the second, and traces it across 27 quarters of filings.
Measured concentration
as of 2026-05-31Read this figure with the following in mind
10.8% of net assets is securities-lending cash collateral, excluded from the figure; counted as filed the fund would read 81.5
The figure below is what the filing says, published unchanged. What it may not do is sit beside a plain long-only fund and be read as the same quantity. How comparability is decided.
Computed 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: 10.55% at a quoted market price (level 1), 40 issuer countries.
What stands out
as of 2026-05-31The largest line in IGLB's filing is not a stock but BlackRock Cash Funds: Treasury, SL Agency Shares, a short-term position at 0.73% of net assets. Ten companies are 2.64% of the fund; the other 3,826 share the rest. Among the 192 bond funds measured here, IGLB behaves like 1905.3 holdings against a median of 236.4 — 8.1 times the median. Across 27 quarterly filings IGLB has become less concentrated: it behaved like 921.5 at 2019-11-30 and 1905.3 at 2026-05-31. Between the 2026-02-28 and 2026-05-31 filings 71 positions were added and 63 dropped; 8.7% of the weight moved. the United States is the largest country at 86.43% of the portfolio, across 40 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
27Between 2019-11-30 and 2026-05-31, IGLB went from behaving like 921.5 equally weighted positions to 1905.3 — 107% more, while its top ten went from 4.52% to 2.64% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-05-31 | 3,836 | 1905.3 | 2.64% | 0.74% |
| 2026-02-28 | 3,828 | 2019.8 | 2.33% | 0.36% |
| 2025-11-30 | 3,811 | 1709.1 | 3.09% | 1.08% |
| 2025-08-31 | 3,772 | 1671.2 | 3.19% | 1.1% |
| 2025-05-31 | 3,784 | 1618.8 | 3.3% | 1.19% |
| 2025-02-28 | 3,766 | 1774.9 | 3.02% | 0.95% |
| 2024-11-30 | 3,749 | 1669.8 | 3.18% | 1.12% |
| 2024-08-31 | 3,691 | 1544.8 | 3.38% | 1.33% |
Earlier filings (19 more, back to 2019-11-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-05-31 | 3,651 | 1805.6 | 2.92% | 0.82% |
| 2024-02-29 | 3,590 | 1848.4 | 2.78% | 0.56% |
| 2023-11-30 | 3,559 | 1912.1 | 2.49% | 0.35% |
| 2023-08-31 | 3,541 | 1916.7 | 2.61% | 0.37% |
| 2023-05-31 | 3,516 | 1953.5 | 2.42% | 0.37% |
| 2023-02-28 | 3,459 | 1668.7 | 3.12% | 0.92% |
| 2022-11-30 | 3,429 | 1717.6 | 3.06% | 0.79% |
| 2022-08-31 | 3,391 | 1868 | 2.53% | 0.34% |
| 2022-05-31 | 3,331 | 1726.1 | 2.98% | 0.58% |
| 2022-02-28 | 3,261 | 1808.3 | 2.61% | 0.36% |
| 2021-11-30 | 3,165 | 1429.9 | 3.63% | 1.06% |
| 2021-08-31 | 3,062 | 1612.5 | 3.06% | 0.57% |
| 2021-05-31 | 2,973 | 1591.8 | 2.98% | 0.54% |
| 2021-02-28 | 2,830 | 1134.6 | 4.34% | 1.53% |
| 2020-11-30 | 2,744 | 995.6 | 4.74% | 1.84% |
| 2020-08-31 | 2,506 | 1298 | 3.49% | 0.48% |
| 2020-05-31 | 2,379 | 1089 | 4.23% | 1.13% |
| 2020-02-29 | 2,398 | 1060.3 | 4.25% | 1.41% |
| 2019-11-30 | 2,260 | 921.5 | 4.52% | 1.71% |
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.
As filed, collateral included
10.84% collateralIGLB's filing lists 3,837 positions including 10.84% of net assets in securities-lending cash collateral. Counted as filed the fund reads 81.5 effective holdings with a top ten of 13.27%; on its own investments — the figure above — it reads 1905.3 with a top ten of 2.64%. The collateral is matched by a liability and is not a holding the fund chose; since 2026-09-18 every figure on this site sets it aside (methodology). Both numbers are in the data.
Largest positions, as filed
as of 2026-05-31The 15 largest of 3,836 positions in IGLB's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: listed with the point-in-time files, available on request.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | BLACKROCK CASH FUNDS TREASURY SL AGENCY SHARES | 0.74% | 0.7% |
| 2 | ANHEUSER-BUSCH CO/INBEV | 0.29% | 1.0% |
| 3 | CVS HEALTH CORP | 0.25% | 1.3% |
| 4 | GOLDMAN SACHS GROUP INC | 0.21% | 1.5% |
| 5 | BOEING CO | 0.21% | 1.7% |
| 6 | PFIZER INVESTMENT ENTER | 0.20% | 1.9% |
| 7 | META PLATFORMS INC | 0.20% | 2.1% |
| 8 | CVS HEALTH CORP | 0.19% | 2.3% |
| 9 | AMAZON.COM INC | 0.18% | 2.5% |
| 10 | WELLS FARGO & COMPANY | 0.18% | 2.6% |
| 11 | AT&T INC | 0.17% | 2.8% |
| 12 | AT&T INC | 0.17% | 3.0% |
| 13 | MARS INC | 0.17% | 3.2% |
| 14 | META PLATFORMS INC | 0.17% | 3.3% |
| 15 | ABBVIE INC | 0.17% | 3.5% |
By country of issuer
as of 2026-05-31Share of IGLB'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 | 84.94% |
| United Kingdom | 2.22% |
| Canada | 2.03% |
| Netherlands° | 1.50% |
| France | 1.06% |
| Cayman Islands° | 0.68% |
| Mexico | 0.65% |
| Chile | 0.61% |
Returns the fund reported
2019-09 – 2026-05Monthly total returns from Item B.5 of IGLB's own filings, 81 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference 0.22 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: IGLB.json · all funds.
Who borrows IGLB's shares
2026-05-31The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-05-31, $277m was out to 21 borrowers, 10.51% of net assets. The largest, GOLDMAN SACHS & CO., held 27.3% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| GOLDMAN SACHS & CO. | $76m | 27.3% |
| JP MORGAN SECURITIES LLC | $61m | 22.2% |
| BARCLAYS BANK PLC | $50m | 17.9% |
| BNP PARIBAS PRIME BROKERAGE INTERNATIONAL LIMITED | $25m | 9.2% |
| Wells Fargo Securities LLC | $16m | 5.7% |
Cash collateral reported against the loan: 10.84% of net assets, 103.1% of the amount lent. That is a floor on the collateral, not the whole of it — collateral the fund does not hold as a position is not in this filing, so a figure under 100% is not evidence of under-collateralisation. How that figure behaves across all funds. Every quarter IGLB has filed, with each borrower: IGLB.json · all funds.
Since the previous filing
2026-02-28 → 2026-05-313,828 positions became 3,836: 71 added (2.8% of the fund at the later date), 63 dropped (1.2% at the earlier date). Half the sum of all weight changes, a turnover proxy: 8.7%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IGLB compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-02-28 | 2026-05-31 | Largest decreases | 2026-02-28 | 2026-05-31 |
|---|---|---|---|---|---|
| BLACKROCK CASH FUNDS TREASURY SL AGENCY SHARES | 0.36% | 0.74% | KRAFT HEINZ FOODS CO | 0.08% | 0.02% |
| STANDARD CHARTERED PLC | 0.01% | 0.05% | HONEYWELL INTERNATIONAL | 0.06% | 0.00% |
| AT&T INC | 0.00% | 0.04% | ORACLE CORP | 0.15% | 0.10% |
| CITIGROUP INC | 0.05% | 0.08% | MORGAN STANLEY | 0.10% | 0.05% |
| META PLATFORMS INC | 0.13% | 0.16% | BECTON DICKINSON & CO | 0.05% | 0.00% |
| UBS GROUP AG | 0.03% | 0.06% | ORACLE CORP | 0.15% | 0.10% |
New: AMAZON.COM INC (0.18%), SALESFORCE INC (0.13%), MORGAN STANLEY (0.12%), AMAZON.COM INC (0.11%), AMAZON.COM INC (0.11%), HONEYWELL AEROSPACE INC (0.10%). Gone: ANHEUSER-BUSCH CO/INBEV (0.11%), CITIGROUP INC (0.07%), BERKSHIRE HATHAWAY ENERG (0.05%), UNITEDHEALTH GROUP INC (0.04%), GENERAL MOTORS CO (0.04%), UBS GROUP AG (0.03%).
Asset categories and pricing
as of 2026-05-3189.45% debt, 10.55% short-term investment as filed; 10.6% 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
9Every measured debt fund lined up by how many holdings it behaves like; these sit either side of IGLB (1905.3). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| TFI State Street(R) SPDR Nuveen ICE Municipal Bond ETF | 1,889 | 1471.4 | 2.03% | 2026-06-30 |
| SLQD iShares 0-5 Year Investment Grade Corporate Bond ETF | 3,053 | 1541.1 | 2.86% | 2026-07-31 |
| VCEB Vanguard ESG U.s. Corporate Bond ETF | 2,774 | 1811.7 | 1.97% | 2026-05-31 |
| IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF | 2,989 | 1843.2 | 1.99% | 2026-05-31 |
| LQD iShares iBoxx $ Investment Grade Corporate Bond ETF | 3,136 | 1889.9 | 2.41% | 2026-05-31 |
| SPIB State Street(R) SPDR(R) Portfolio Intermediate Term Corporate Bond ETF | 5,147 | 2196.7 | 2.69% | 2026-06-30 |
| QLTA iShares Aaa - A Rated Corporate Bond ETF | 3,502 | 2213.7 | 1.83% | 2026-07-31 |
| PZA Invesco National AMT-Free Municipal Bond ETF | 6,664 | 3341.2 | 1.1% | 2026-05-31 |
| USIG iShares Broad USD Investment Grade Corporate Bond ETF | 11,459 | 6893.6 | 0.73% | 2026-05-31 |
Essays that examine IGLB
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.