SIZE holdings and overlap
iShares MSCI USA Size Factor ETF (SIZE) holds 515 positions in its iShares file of 2026-10-27. Its three largest are Okta (OKTA) at 0.51%, Atlassian (TEAM) at 0.48% and Natera (NTRA) at 0.40%, and its ten largest make up 4.0% of the fund.
In its iShares file of 2026-10-27, SIZE is 17.9% technology, 16.2% industrials and 16.1% financials by sector, with 1.3% in mega-cap tech and 1.6% in the ten largest US companies by market value.
What does SIZE hold, as of its issuer file of 2026-10-27?
Okta is 0.51% of SIZE on its own, against a median largest position of 7.6% across the 72 US Large Blend funds with a page here. 90 of the 594 funds with a page hold OKTA, and SIZE gives it more weight than all but 21 of them.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | OKTA Okta | 0.51% | |
| 2 | TEAM Atlassian | 0.48% | |
| 3 | NTRA Natera | 0.4% | |
| 4 | ILMN Illumina | 0.38% | |
| 5 | DELL Dell Technologies | 0.38% | |
| 6 | SN SharkNinja | 0.37% | |
| 7 | SNOW Snowflake | 0.36% | |
| 8 | VEEV Veeva Systems | 0.36% | |
| 9 | VMRK Vivmark Residential | 0.36% | |
| 10 | NTAP NetApp | 0.36% | |
| 11 | P Everpure | 0.34% | |
| 12 | HPE Hewlett Packard Enterprise | 0.34% | |
| 13 | BBY Best Buy | 0.32% | |
| 14 | HPQ HP Inc. | 0.31% | |
| 15 | CRWD CrowdStrike | 0.31% | |
| 16 | MTD Mettler Toledo | 0.31% | |
| 17 | CDW CDW | 0.3% | |
| 18 | A Agilent Technologies | 0.3% | |
| 19 | MPC Marathon Petroleum | 0.3% | |
| 20 | WDAY Workday | 0.3% | |
| 21 | IQV IQVIA | 0.3% | |
| 22 | PANW Palo Alto Networks | 0.29% | |
| 23 | NET Cloudflare | 0.29% | |
| 24 | ZS Zscaler | 0.28% | |
| 25 | WSM Williams-Sonoma | 0.28% | |
| 26 | TMO Thermo Fisher Scientific | 0.27% | |
| 27 | IOT Samsara | 0.27% | |
| 28 | NOW ServiceNow | 0.27% | |
| 29 | EL Estée Lauder Companies | 0.27% | |
| 30 | PSX Phillips 66 | 0.27% | |
| 31 | VLO Valero Energy | 0.27% | |
| 32 | TOST Toast | 0.27% | |
| 33 | WAT Waters | 0.26% | |
| 34 | DLTR Dollar Tree | 0.26% | |
| 35 | FTNT Fortinet | 0.26% | |
| 36 | CRBG Corebridge Financial | 0.26% | |
| 37 | PTC PTC | 0.26% | |
| 38 | GPC Genuine Parts | 0.26% | |
| 39 | J Jacobs Solutions | 0.26% | |
| 40 | PLTR Palantir Technologies | 0.25% | |
| 41 | BIIB Biogen | 0.25% | |
| 42 | WST West Pharmaceutical Services | 0.25% | |
| 43 | HUM Humana | 0.25% | |
| 44 | IFF International Flavors & Fragrances | 0.25% | |
| 45 | LH Labcorp | 0.25% | |
| 46 | ULTA Ulta Beauty | 0.25% | |
| 47 | ROP Roper Technologies | 0.25% | |
| 48 | DHR Danaher | 0.25% | |
| 49 | BDX Becton Dickinson | 0.25% | |
| 50 | CTSH Cognizant | 0.25% | |
| 51 | TWLO Twilio | 0.24% | |
| 52 | EXPE Expedia Group | 0.24% | |
| 53 | MRVL Marvell Technology | 0.24% | |
| 54 | DGX Quest Diagnostics | 0.24% | |
| 55 | EXPD Expeditors International | 0.24% | |
| 56 | AMCR Amcor | 0.24% | |
| 57 | WTW Willis Towers Watson | 0.24% | |
| 58 | PKG Packaging Corporation of America | 0.24% | |
| 59 | RVMD Revolution Medicines | 0.24% | |
| 60 | AMGN Amgen | 0.24% | |
| 61 | ADP Automatic Data Processing | 0.24% | |
| 62 | CRM Salesforce | 0.24% | |
| 63 | TRV Travelers Companies | 0.24% | |
| 64 | PYPL PayPal | 0.24% | |
| 65 | ACN Accenture | 0.24% | |
| 66 | RPRX Royalty Pharma | 0.24% | |
| 67 | DDOG Datadog | 0.24% | |
| 68 | REGN Regeneron Pharmaceuticals | 0.24% | |
| 69 | AJG Arthur J. Gallagher | 0.23% | |
| 70 | SSNC SS&C Technologies | 0.23% | |
| 71 | FCNCA First Citizens BancShares | 0.23% | |
| 72 | INCY Incyte | 0.23% | |
| 73 | GRMN Garmin | 0.23% | |
| 74 | ABNB Airbnb | 0.23% | |
| 75 | DG Dollar General | 0.23% | |
| 76 | RS Reliance | 0.23% | |
| 77 | HOOD Robinhood Markets | 0.23% | |
| 78 | NDSN Nordson | 0.23% | |
| 79 | ENTG Entegris | 0.23% | |
| 80 | APH Amphenol | 0.23% | |
| 81 | ANET Arista Networks | 0.23% | |
| 82 | EMR Emerson Electric | 0.23% | |
| 83 | GPN Global Payments | 0.23% | |
| 84 | RBLX Roblox | 0.23% | |
| 85 | URI United Rentals | 0.23% | |
| 86 | SW Smurfit Westrock | 0.23% | |
| 87 | FFIV F5 | 0.23% | |
| 88 | ABBV AbbVie | 0.23% | |
| 89 | BR Broadridge Financial Solutions | 0.23% | |
| 90 | MCK McKesson | 0.23% | |
| 91 | VLTO Veralto | 0.23% | |
| 92 | MET MetLife | 0.23% | |
| 93 | CAH Cardinal Health | 0.23% | |
| 94 | MAS Masco | 0.23% | |
| 95 | RMD ResMed | 0.23% | |
| 96 | CTAS Cintas | 0.23% | |
| 97 | COR Cencora | 0.23% | |
| 98 | AMD Advanced Micro Devices | 0.22% | |
| 99 | BALL Ball | 0.22% | |
| 100 | NUE Nucor | 0.22% |
The most recent file iShares has published for SIZE is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 515 positions SIZE holds, with its weight, is in the fund's JSON file. See the other 89 ETFs with a page here that hold OKTA, and how their weights compare with the 0.51% SIZE gives it.
Category: US Large Blend, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, 100% of its stocks are US companies; weighted by holding, they sit where 77% of their market's value is in larger companies (large: up to 78%); growth index funds hold 31% of their value against 33% for companies of the same sizes in the whole market (blend: within 10 points). How categories are set.
https://tickerinside.com/api/v1/fund/size.jsonhttps://tickerinside.com/api/v1/fund/size.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/size.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/size.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/size.jsonHow much money went into or out of SIZE?
On the close of Friday, October 23, 2026, SIZE neither created nor redeemed shares. Over its last 5 closes, a net inflow of $0.
From SIZE's own holdings files. Every ETF's latest flows.
How is SIZE split by sector?
| Sector | Weight | Weight bar |
|---|---|---|
| Technology | 17.9% | |
| Industrials | 16.2% | |
| Financials | 16.1% | |
| Health care | 12.8% | |
| Consumer discretionary | 9.0% | |
| Consumer staples | 5.7% | |
| Utilities | 5.2% | |
| Materials | 4.8% | |
| Real estate | 4.4% | |
| Energy | 4.3% | |
| Communication services | 3.3% |
From its iShares file of 2026-10-27. How these are measured.
What did SIZE hold in its SEC reports since 2019?
In SIZE's SEC filings, its largest position went from Global Payments (GPN) at 0.38% on 2019-10-31 to Okta, Inc. (OKTA) at 0.31% on 2026-07-31, across 28 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-10-31 | 615 | GPN 0.38% | 2.9% |
| 2020-10-31 | 606 | PINS 0.46% | 3.4% |
| 2021-10-31 | 616 | NET 0.42% | 3.1% |
| 2022-10-31 | 616 | PLD 0.32% | 2.7% |
| 2023-10-31 | 619 | SPLK 0.26% | 2.4% |
| 2024-10-31 | 588 | APP 0.33% | 2.8% |
| 2025-10-31 | 544 | WDC 0.53% | 4.0% |
| 2026-07-31 | 527 | OKTA 0.31% | 2.9% |
The first report, then the last of each year, of the 28 reports SIZE filed on SEC Form N-PORT from 2019-10-31 to 2026-07-31, each company under its ticker today. Every position of every report is in its quarterly file, and at any date at /api/v1/history/size/{date}.json. How these are read.
What does SIZE duplicate?
The ETF nearest to SIZE is EUSA: the two hold 92.9% of their weight in common, in the 515 companies both own, and 100.0% of SIZE itself is also held there. Owning SIZE alongside the ETFs at the top of this table means holding mostly the same companies twice. SIZE is close to contained in EUSA.
| ETF | Overlap by weight | Of SIZE held there | Of that ETF in SIZE | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| EUSA | 92.9% | 100.0% | 100.0% | 515 | |
| RSP | 80.8% | 85.9% | 87.7% | 442 | |
| RSPA | 66.1% | 85.9% | 87.7% | 442 | |
| IMCB | 60.9% | 70.0% | 95.9% | 355 | |
| IWR | 52.5% | 62.7% | 70.0% | 312 | |
| VO | 49.4% | 53.6% | 98.1% | 271 | |
| SPYV | 48.6% | 74.4% | 97.7% | 377 | |
| IVE | 48.6% | 74.4% | 97.7% | 378 | |
| GSLC | 48.6% | 78.3% | 98.1% | 404 | |
| IUSV | 47.9% | 77.6% | 93.0% | 395 | |
| VOOV | 47.7% | 73.2% | 97.3% | 371 | |
| EQAL | 46.7% | 98.7% | 52.2% | 505 |
VO's holdings are from its SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-28. GSLC's holdings are from its SEC Form N-PORT for the period ended 2026-08-31, filed 2026-10-27. VOOV's holdings are from its SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29. The other ETFs' holdings are from their issuers' latest files. Check SIZE against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to SIZE?
MCHI shares 0% of weight with SIZE and its weekly returns correlate with it at 0.34 over three years. The table lists the covered ETFs with the least in common with SIZE, least shared weight first and, among equals, lowest correlation.
| ETF | Name | Overlap by weight | Correlation, 3y | Companies in both |
|---|---|---|---|---|
| MCHI | iShares MSCI China ETF | 0.0% | 0.34 | 0 |
| SMIN | iShares MSCI India Small-Cap ETF | 0.0% | 0.38 | 0 |
| KSA | iShares MSCI Saudi Arabia ETF | 0.0% | 0.41 | 0 |
| PFF | iShares Preferred and Income Securities ETF | 0.0% | 0.69 | 0 |
| IXUS | iShares Core MSCI Total International Stock ETF | 0.0% | 0.74 | 0 |
| SCZ | iShares MSCI EAFE Small-Cap ETF | 0.0% | 0.74 | 0 |
| XSVM | Invesco S&P SmallCap Value with Momentum ETF | 0.0% | 0.81 | 0 |
| XSMO | Invesco S&P SmallCap Momentum ETF | 0.0% | 0.84 | 0 |
Cost, returns and risk
| Expense ratio | 0.15% |
|---|---|
| Dividend yield | 1.42% |
| Total return, 1 year | 14.0% |
| Total return, 3 years cumulative | 61.2% |
| Total return, 5 years cumulative | 41.3% |
| Volatility, annualised | 13.2% |
| Worst fall, 3 years | -16.2% |
| Beta against SPY, 3 years of weekly returns | 0.81 |
| Weight in the ten largest positions | 4.0% |
| Largest single position | 0.5% |
| Assets under management | $0.4B |
Expense ratio, yield and assets are reference data (the expense ratio from SIZE's SEC filing of 2025-11-21); the weight in the ten largest positions and the largest single position are from the issuer file of 2026-10-27; every other figure is computed here from weekly closes.
How it moves with the market
| Against | Correlation, 3 years | Covariance, annualised, in percent squared |
|---|---|---|
| SPY | 0.85usually in step | 155 |
| QQQ | 0.70often in step | 178 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 12.8% |
| 2025 | 10.5% |
| 2024 | 14.4% |
| 2023 | 17.8% |
| 2022 | -15.9% |
One year
Where to go next
- SPGP, Invesco S&P 500 GARP ETF
- SPMO, Invesco S&P 500 Momentum ETF
- SPTM, State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
- SPY, SPDR S&P 500 ETF Trust
- Run a portfolio x-ray to see what SIZE carries once you look through it
- Compare SIZE against any other ETF in the builder
Holdings from the most recent file iShares has published, dated 2026-10-27. Prices through 2026-10-28. How every figure here is produced. Measurements, not investment advice.
Cite this page
TickerInside, iShares MSCI USA Size Factor ETF (SIZE), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/size/, CC BY 4.0
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