Fund · iShares Core S&P U.S. Growth ETF · measured from SEC filings
IUSG holdings
IUSG reports 394 holdings and behaves like 24.5 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: 100% at a quoted market price (level 1), 8 issuer countries.
What stands out
as of 2026-06-30IUSG's largest investment is Nvidia Corp at 12.95% of net assets. Microsoft Corp and Apple Inc follow; the three together are 26.04%. Ten companies are 53.52% of the fund; the other 384 share the rest. Among the 721 equity funds measured here, IUSG behaves like 24.5 holdings against a median of 42.4 — 1.7 times more concentrated than the median. Across 28 quarterly filings IUSG has become more concentrated: it behaved like 64.1 at 2019-09-30 and 24.5 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 10 positions were added and 4 dropped; 9.2% of the weight moved.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable equity funds on this site. Nothing here is a view on the fund.
Every filing since 2019
28Between 2019-09-30 and 2026-06-30, IUSG went from behaving like 64.1 equally weighted positions to 24.5 — 62% fewer, while its top ten went from 29.43% to 53.52% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-06-30 | 394 | 24.5 | 53.52% | 12.96% |
| 2026-03-31 | 386 | 22.2 | 56.4% | 13.84% |
| 2025-12-31 | 375 | 20.3 | 59.07% | 13.76% |
| 2025-09-30 | 464 | 25.4 | 51.99% | 13.86% |
| 2025-06-30 | 457 | 27.5 | 49.47% | 13.01% |
| 2025-03-31 | 453 | 32.7 | 46.78% | 10.57% |
| 2024-12-31 | 446 | 28.2 | 51.03% | 12.04% |
| 2024-09-30 | 490 | 20.9 | 57.3% | 12.14% |
Earlier filings (20 more, back to 2019-09-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-06-30 | 485 | 20.3 | 58.23% | 11.93% |
| 2024-03-31 | 475 | 23 | 54.5% | 12.26% |
| 2023-12-31 | 470 | 22.5 | 53.78% | 12.44% |
| 2023-09-30 | 489 | 33.7 | 42.78% | 11.99% |
| 2023-06-30 | 482 | 30.4 | 43.15% | 13.42% |
| 2023-03-31 | 473 | 34.3 | 40.12% | 12.65% |
| 2022-12-30 | 462 | 41.9 | 35.43% | 10.92% |
| 2022-09-30 | 477 | 23.6 | 49.53% | 13.42% |
| 2022-06-30 | 474 | 23.8 | 49.31% | 12.96% |
| 2022-03-31 | 474 | 22.9 | 51.73% | 13.18% |
| 2021-12-31 | 475 | 24.5 | 50.7% | 12.28% |
| 2021-09-30 | 474 | 28.4 | 47.55% | 10.71% |
| 2021-06-30 | 471 | 28.8 | 47.2% | 10.57% |
| 2021-03-31 | 465 | 29.9 | 45.55% | 10.55% |
| 2020-12-31 | 458 | 27.7 | 46.26% | 11.88% |
| 2020-09-30 | 526 | 33.2 | 41.74% | 10.36% |
| 2020-06-30 | 521 | 34.7 | 40.96% | 9.58% |
| 2020-03-31 | 507 | 38.7 | 38.93% | 9.39% |
| 2019-12-31 | 504 | 46.9 | 35.8% | 8.11% |
| 2019-09-30 | 543 | 64.1 | 29.43% | 7.51% |
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 394 positions in IUSG's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: IUSG.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | NVIDIA CORP | 12.96% | 13.0% |
| 2 | MICROSOFT CORP | 7.41% | 20.4% |
| 3 | APPLE INC | 5.68% | 26.0% |
| 4 | ALPHABET INC | 5.60% | 31.6% |
| 5 | BROADCOM INC | 4.78% | 36.4% |
| 6 | ALPHABET INC | 4.46% | 40.9% |
| 7 | MICRON TECHNOLOGY INC | 3.48% | 44.4% |
| 8 | META PLATFORMS INC | 3.31% | 47.7% |
| 9 | AMAZON.COM INC | 3.31% | 51.0% |
| 10 | ELI LILLY & COMPANY | 2.54% | 53.5% |
| 11 | ADVANCED MICRO DEVICES INC | 2.53% | 56.1% |
| 12 | BERKSHIRE HATHAWAY INC | 2.45% | 58.5% |
| 13 | TESLA INC | 1.96% | 60.5% |
| 14 | JP MORGAN CHASE & COMPANY | 1.59% | 62.1% |
| 15 | APPLIED MATERIALS INC | 1.53% | 63.6% |
By country of issuer
as of 2026-06-30Share of IUSG'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 | 98.29% |
| Ireland° | 0.96% |
| Liberia° | 0.21% |
| Bermuda° | 0.18% |
| Singapore | 0.16% |
| United Kingdom | 0.08% |
| Canada | 0.07% |
| Cayman Islands° | 0.05% |
Returns the fund reported
2019-07 – 2026-06Monthly total returns from Item B.5 of IUSG'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 0.07 percentage points over 84 months, which is roughly the distributions. Every month with the filing it came from: IUSG.json · all funds.
Who borrows IUSG's shares
2026-06-30The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-06-30, $129m was out to 16 borrowers, 0.40% of net assets. The largest, UBS AG, held 29.8% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| UBS AG | $38m | 29.8% |
| CITIGROUP GLOBAL MARKETS INC. | $26m | 20.5% |
| JP MORGAN SECURITIES LLC | $22m | 17.0% |
| Wells Fargo Bank, National Association | $14m | 10.8% |
| BofA Securities, Inc. | $9m | 7.1% |
Cash collateral reported against the loan: 0.39% of net assets, 97.7% 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 IUSG has filed, with each borrower: IUSG.json · all funds.
Since the previous filing
2026-03-31 → 2026-06-30386 positions became 392: 10 added (0.7% of the fund at the later date), 4 dropped (0.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 9.2%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IUSG 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 |
|---|---|---|---|---|---|
| MICRON TECHNOLOGY INC | 1.24% | 3.48% | MICROSOFT CORP | 8.98% | 7.41% |
| ADVANCED MICRO DEVICES INC | 1.08% | 2.53% | NVIDIA CORP | 13.84% | 12.96% |
| APPLIED MATERIALS INC | 0.89% | 1.53% | META PLATFORMS INC | 4.09% | 3.31% |
| SANDISK CORP | 0.31% | 0.90% | NETFLIX INC | 1.33% | 0.80% |
| LAM RESEARCH CORP | 0.87% | 1.45% | BERKSHIRE HATHAWAY INC | 2.87% | 2.45% |
| KLA CORP | 0.63% | 1.05% | APPLE INC | 6.08% | 5.68% |
New: MARVELL TECHNOLOGY INC (0.33%), CARNIVAL CORP LTD (0.10%), ROKU INC (0.05%), COEUR MINING INC (0.05%), VEEVA SYSTEMS INC (0.04%), SANMINA CORP (0.04%). Gone: CARNIVAL CORP (0.10%), Masimo Corporation (0.02%), BellRing Intermediate Holdings Inc. (0.00%), Blackbaud Inc (0.00%).
Asset categories and pricing
as of 2026-06-3099.52% equity, 0.48% short-term investment as filed; 100.0% 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.
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 $32.22B. 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, equity funds
10Every measured equity fund lined up by how many holdings it behaves like; these sit either side of IUSG (24.5). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| ARKX ARK Space & Defense Innovation ETF | 36 | 24.1 | 54.25% | 2026-07-31 |
| VOLT Tema Electrification ETF | 33 | 24.2 | 50.86% | 2026-05-31 |
| USSG Xtrackers MSCI USA Selection Equity ETF | 269 | 24.2 | 48.26% | 2026-05-29 |
| INDY iShares India 50 ETF | 51 | 24.2 | 52.72% | 2026-06-30 |
| QGRW WisdomTree U.S. Quality Growth Fund | 101 | 24.4 | 54.06% | 2026-06-30 |
| TRFK Pacer Data and Digital Revolution ETF | 95 | 24.6 | 53.02% | 2026-07-31 |
| AIS VistaShares Artificial Intelligence Supercycle ETF | 55 | 24.6 | 49.33% | 2026-05-31 |
| EWU iShares MSCI United Kingdom ETF | 76 | 24.7 | 52.68% | 2026-05-31 |
| ILCG iShares Morningstar Growth ETF | 327 | 24.7 | 49.31% | 2026-07-31 |
| NULG Nuveen ESG Large-Cap Growth ETF | 70 | 24.7 | 44.04% | 2026-07-31 |
Essays that examine IUSG
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.