Fund · iShares MSCI USA Size Factor ETF · measured from SEC filings
SIZE holdings
SIZE reports 529 holdings and behaves like 512 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 27 quarters of filings.
Measured concentration
as of 2026-07-31Read this figure with the following in mind
1.4% of net assets is securities-lending cash collateral, excluded from the figure; counted as filed the fund would read 463.8
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 . Pricing: 100% at a quoted market price (level 1), 13 issuer countries.
What stands out
as of 2026-07-31Ten companies are 2.86% of the fund; the other 519 share the rest. Among the 721 equity funds measured here, SIZE behaves like 512 holdings against a median of 42.4 — 12.1 times the median. Across 27 quarterly filings SIZE has held roughly steady since 2019-10-31 (611.5 then, 496.8 now). Between the 2026-01-31 and 2026-04-30 filings 11 positions were added and 18 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
27Between 2019-10-31 and 2026-04-30, SIZE went from behaving like 611.5 equally weighted positions to 496.8 — 19% fewer, while its top ten went from 2.92% to 3.9% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 539 | 496.8 | 3.9% | 0.46% |
| 2026-01-31 | 546 | 530.9 | 2.72% | 0.3% |
| 2025-10-31 | 546 | 508.8 | 4.04% | 0.54% |
| 2025-07-31 | 544 | 529.6 | 2.93% | 0.4% |
| 2025-04-30 | 577 | 556.6 | 2.83% | 0.35% |
| 2025-01-31 | 592 | 578.5 | 2.58% | 0.3% |
| 2024-10-31 | 594 | 572.7 | 2.8% | 0.33% |
| 2024-07-31 | 602 | 591.5 | 2.31% | 0.28% |
Earlier filings (19 more, back to 2019-10-31)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 612 | 588.4 | 3.02% | 0.43% |
| 2024-01-31 | 612 | 600.4 | 2.41% | 0.31% |
| 2023-10-31 | 626 | 605.7 | 2.36% | 0.26% |
| 2023-07-31 | 630 | 614.4 | 2.51% | 0.31% |
| 2023-04-30 | 628 | 605.2 | 2.63% | 0.31% |
| 2023-01-31 | 630 | 614.1 | 2.28% | 0.26% |
| 2022-10-31 | 628 | 593.3 | 2.96% | 0.5% |
| 2022-07-31 | 630 | 616.3 | 2.2% | 0.27% |
| 2022-04-30 | 627 | 577.6 | 2.84% | 0.33% |
| 2022-01-31 | 629 | 606.8 | 2.32% | 0.33% |
| 2021-10-31 | 629 | 592.8 | 3.12% | 0.42% |
| 2021-07-31 | 629 | 607.4 | 2.59% | 0.33% |
| 2021-04-30 | 624 | 597.8 | 2.63% | 0.36% |
| 2021-01-31 | 624 | 604.7 | 2.6% | 0.33% |
| 2020-10-31 | 620 | 581.6 | 3.36% | 0.46% |
| 2020-07-31 | 621 | 601.5 | 2.45% | 0.3% |
| 2020-04-30 | 640 | 587.2 | 3.32% | 0.48% |
| 2020-01-31 | 638 | 625.2 | 2.45% | 0.29% |
| 2019-10-31 | 639 | 611.5 | 2.92% | 0.38% |
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.
Compared with, in the essays
2As filed, collateral included
1.43% collateralSIZE's filing lists 530 positions including 1.43% of net assets in securities-lending cash collateral. Counted as filed the fund reads 463.8 effective holdings with a top ten of 4.02%; on its own investments — the figure above — it reads 512 with a top ten of 2.86%. 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.
By country of issuer
as of 2026-04-30Share of SIZE'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 | 93.02% |
| Ireland° | 2.83% |
| Switzerland | 0.84% |
| Netherlands° | 0.77% |
| Bermuda° | 0.38% |
| Cayman Islands° | 0.35% |
| Jersey° | 0.30% |
| Curaçao° | 0.28% |
Returns the fund reported
2019-08 – 2026-04Monthly total returns from Item B.5 of SIZE'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 — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: SIZE.json · all funds.
Who borrows SIZE's shares
2026-07-31The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-07-31, $6m was out to 9 borrowers. The largest, CITIGROUP GLOBAL MARKETS INC., held 25.8% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| CITIGROUP GLOBAL MARKETS INC. | $1m | 25.8% |
| BNP PARIBAS PRIME BROKERAGE INTERNATIONAL LIMITED | $1m | 25.1% |
| JP MORGAN SECURITIES LLC | $1m | 18.8% |
| SG AMERICAS SECURITIES LLC | $486,408 | 8.4% |
| BARCLAYS BANK PLC | $427,605 | 7.4% |
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 SIZE has filed, with each borrower: SIZE.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-30546 positions became 539: 11 added (2.0% of the fund at the later date), 18 dropped (2.8% 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 SIZE 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 |
|---|---|---|---|---|---|
| CIENA CORPORATION | 0.22% | 0.45% | THE ESTEE LAUDER COMPANIES INC. | 0.23% | 0.15% |
| INTEL CORPORATION | 0.21% | 0.42% | COSTAR GROUP, INC. | 0.16% | 0.09% |
| WESTERN DIGITAL CORPORATION | 0.27% | 0.46% | COGNIZANT TECHNOLOGY SOLUTIONS CORPORATION | 0.20% | 0.13% |
| BLOOM ENERGY CORPORATION | 0.22% | 0.40% | BUILDERS FIRSTSOURCE, INC. | 0.21% | 0.14% |
| MARVELL TECHNOLOGY, INC. | 0.16% | 0.32% | MONGODB, INC. | 0.19% | 0.12% |
| SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY | 0.26% | 0.41% | ACCENTURE PUBLIC LIMITED COMPANY | 0.18% | 0.12% |
New: LUMENTUM HOLDINGS INC. (0.27%), REVOLUTION MEDICINES, INC. (0.27%), Coherent Corp. (0.26%), CASEY'S GENERAL STORES, INC. (0.23%), IREN LIMITED (0.21%), CURTISS-WRIGHT CORPORATION (0.19%). Gone: BAXTER INTERNATIONAL INC. (0.21%), BOOZ ALLEN HAMILTON HOLDING CORPORATION (0.20%), ALEXANDRIA REAL ESTATE EQUITIES, INC. (0.20%), EQUITY LIFESTYLE PROPERTIES, INC. (0.19%), Essential Utilities, Inc. (0.19%), BROWN-FORMAN CORPORATION (0.19%).
Asset categories and pricing
as of 2026-07-3198.40% equity, 1.60% 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.
Neighbours by effective holdings, equity funds
10Every measured equity fund lined up by how many holdings it behaves like; these sit either side of SIZE (512). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| VBR Vanguard Small-Cap Value Index Fund | 842 | 457.7 | 5.88% | 2026-06-30 |
| ISCG iShares Morningstar Small-Cap Growth ETF | 929 | 490.5 | 5.62% | 2026-07-31 |
| EUSA iShares MSCI USA Equal Weighted ETF | 540 | 494.2 | 4.47% | 2026-05-31 |
| AVDE Avantis International Equity ETF | 3,302 | 496.8 | 7.08% | 2026-05-31 |
| RSP Invesco S&P 500 Equal Weight ETF | 505 | 496.9 | 2.55% | 2026-07-31 |
| VTWO Vanguard Russell 2000 Index Fund | 1,954 | 513.7 | 7.78% | 2026-05-31 |
| IWN iShares Russell 2000 Value ETF | 1,425 | 519.9 | 5.53% | 2026-06-30 |
| TLTD FlexShares Morningstar Developed Markets ex-US Factor Tilt Index Fund | 2,279 | 531.2 | 7.53% | 2026-07-31 |
| ISCF iShares International Small-Cap Equity Factor ETF | 1,180 | 557.1 | 5.69% | 2026-07-31 |
| EQAL Invesco Russell 1000 Equal Weight ETF | 988 | 566.4 | 6.53% | 2026-05-31 |
Measures applied in the essays
2Essays that examine SIZE
3-
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How Factor Loadings Drift: Watching MTUM, QUAL, and SIZE Over Five Years
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Mentions 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.