IWR holdings and overlap
iShares Russell Mid-Cap ETF (IWR) holds 815 positions in its iShares file of 2026-10-27. Its three largest are Marathon Petroleum (MPC) at 0.94%, Snowflake (SNOW) at 0.83% and Phillips 66 (PSX) at 0.79%, and its ten largest make up 6.7% of the fund.
In its iShares file of 2026-10-27, IWR is 16.7% industrials, 16.3% technology and 13.8% financials by sector, with none of it in mega-cap tech or in the ten largest US companies by market value. By country, 98.5% of IWR is in the United States.
What does IWR hold, as of its issuer file of 2026-10-27?
IWR spreads its weight across 815 positions, against a median of 400 across the 12 US Mid-Cap Blend funds with a page here. 104 of the 594 funds with a page hold MPC, and IWR gives it more weight than all but 19 of them.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | MPC Marathon Petroleum | 0.94% | |
| 2 | SNOW Snowflake | 0.83% | |
| 3 | PSX Phillips 66 | 0.79% | |
| 4 | NET Cloudflare | 0.76% | |
| 5 | DDOG Datadog | 0.67% | |
| 6 | HPE Hewlett Packard Enterprise | 0.59% | |
| 7 | MRNA Moderna | 0.55% | |
| 8 | RCL Royal Caribbean Group | 0.54% | |
| 9 | HOOD Robinhood Markets | 0.53% | |
| 10 | URI United Rentals | 0.53% | |
| 11 | SPG Simon Property Group | 0.5% | |
| 12 | LITE Lumentum | 0.49% | |
| 13 | DLR Digital Realty | 0.48% | |
| 14 | KMI Kinder Morgan | 0.48% | |
| 15 | ALL Allstate | 0.47% | |
| 16 | TRGP Targa Resources | 0.47% | |
| 17 | LNG Cheniere Energy | 0.46% | |
| 18 | COR Cencora | 0.44% | |
| 19 | OKE Oneok | 0.44% | |
| 20 | NUE Nucor | 0.44% | |
| 21 | FAST Fastenal | 0.43% | |
| 22 | BKR Baker Hughes | 0.43% | |
| 23 | GWW W. W. Grainger | 0.43% | |
| 24 | DVN Devon Energy | 0.42% | |
| 25 | CAH Cardinal Health | 0.42% | |
| 26 | KEYS Keysight Technologies | 0.42% | |
| 27 | AME Ametek | 0.41% | |
| 28 | NTRA Natera | 0.41% | |
| 29 | BDX Becton Dickinson | 0.39% | |
| 30 | O Realty Income | 0.39% | |
| 31 | EW Edwards Lifesciences | 0.38% | |
| 32 | ADSK Autodesk | 0.37% | |
| 33 | TER Teradyne | 0.37% | |
| 34 | ETR Entergy | 0.37% | |
| 35 | A Agilent Technologies | 0.37% | |
| 36 | DAL Delta Air Lines | 0.37% | |
| 37 | HUM Humana | 0.36% | |
| 38 | ROK Rockwell Automation | 0.36% | |
| 39 | VST Vistra | 0.36% | |
| 40 | XEL Xcel Energy | 0.36% | |
| 41 | FITB Fifth Third Bancorp | 0.35% | |
| 42 | VYLR Vylor | 0.35% | |
| 43 | LHX L3Harris | 0.35% | |
| 44 | PYPL PayPal | 0.35% | |
| 45 | VMRK Vivmark Residential | 0.35% | |
| 46 | GRMN Garmin | 0.35% | |
| 47 | EBAY eBay | 0.34% | |
| 48 | WAB Wabtec | 0.34% | |
| 49 | VEEV Veeva Systems | 0.34% | |
| 50 | NDAQ Nasdaq | 0.34% | |
| 51 | WAT Waters | 0.34% | |
| 52 | EXC Exelon | 0.33% | |
| 53 | F Ford Motor | 0.33% | |
| 54 | STT State Street | 0.33% | |
| 55 | OXY Occidental Petroleum | 0.33% | |
| 56 | KDP Keurig Dr Pepper | 0.33% | |
| 57 | FIX Comfort Systems USA | 0.33% | |
| 58 | NTAP NetApp | 0.33% | |
| 59 | IDXX Idexx Laboratories | 0.32% | |
| 60 | IQV IQVIA | 0.32% | |
| 61 | COHR Coherent | 0.32% | |
| 62 | FERG Ferguson Enterprises | 0.32% | |
| 63 | ALAB Astera Labs | 0.32% | |
| 64 | AU AngloGold Ashanti | 0.32% | |
| 65 | AMP Ameriprise Financial | 0.32% | |
| 66 | P Everpure | 0.32% | |
| 67 | ROP Roper Technologies | 0.31% | |
| 68 | VTR Ventas | 0.31% | |
| 69 | MCHP Microchip Technology | 0.31% | |
| 70 | ILMN Illumina | 0.31% | |
| 71 | AIG American International Group | 0.31% | |
| 72 | ED Consolidated Edison | 0.31% | |
| 73 | MSCI MSCI | 0.31% | |
| 74 | FANG Diamondback Energy | 0.31% | |
| 75 | YUM Yum! Brands | 0.3% | |
| 76 | WDAY Workday | 0.3% | |
| 77 | PRU Prudential Financial | 0.29% | |
| 78 | SYY Sysco | 0.29% | |
| 79 | XYZ Block | 0.28% | |
| 80 | TWLO Twilio | 0.27% | |
| 81 | ADM Archer Daniels Midland | 0.27% | |
| 82 | CCI Crown Castle | 0.27% | |
| 83 | OKTA Okta | 0.27% | |
| 84 | BIIB Biogen | 0.27% | |
| 85 | TTWO Take-Two Interactive | 0.27% | |
| 86 | KVUE Kenvue | 0.27% | |
| 87 | KR Kroger | 0.27% | |
| 88 | DHI D. R. Horton | 0.27% | |
| 89 | RMD ResMed | 0.27% | |
| 90 | PEG Public Service Enterprise Group | 0.27% | |
| 91 | WEC WEC Energy Group | 0.27% | |
| 92 | HIG The Hartford | 0.26% | |
| 93 | KMB Kimberly-Clark | 0.26% | |
| 94 | RVMD Revolution Medicines | 0.26% | |
| 95 | CBRE CBRE Group | 0.26% | |
| 96 | COIN Coinbase | 0.26% | |
| 97 | CCL Carnival | 0.26% | |
| 98 | CMG Chipotle Mexican Grill | 0.26% | |
| 99 | PAYX Paychex | 0.26% | |
| 100 | ODFL Old Dominion | 0.25% |
The most recent file iShares has published for IWR is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 815 positions IWR holds, with its weight, is in the fund's JSON file. See the other 103 ETFs with a page here that hold MPC, and how their weights compare with the 0.94% IWR gives it.
Category: US Mid-Cap Blend, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, 99% of its stocks are US companies; weighted by holding, they sit where 86% of their market's value is in larger companies (mid: 78% to 94%); growth index funds hold 30% of their value against 32% for companies of the same sizes in the whole market (blend: within 10 points). How categories are set.
https://tickerinside.com/api/v1/fund/iwr.jsonhttps://tickerinside.com/api/v1/fund/iwr.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/iwr.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/iwr.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/iwr.jsonHow much money went into or out of IWR?
On the close of Friday, October 23, 2026, IWR neither created nor redeemed shares. Over its last 5 closes, a net inflow of $0, 3 of them measured.
From IWR's own holdings files. Every ETF's latest flows.
How is IWR split by sector and country?
| Sector | Weight | Weight bar |
|---|---|---|
| Industrials | 16.7% | |
| Technology | 16.3% | |
| Financials | 13.8% | |
| Health care | 12.6% | |
| Consumer discretionary | 8.6% | |
| Energy | 7.2% | |
| Real estate | 6.4% | |
| Utilities | 5.7% | |
| Consumer staples | 5.2% | |
| Materials | 4.8% | |
| Communication services | 2.4% |
| Country | Weight | Weight bar |
|---|---|---|
| United States | 98.5% | |
| Canada | 0.5% | |
| United Kingdom | 0.3% | |
| Brazil | 0.1% | |
| Denmark | 0.1% | |
| Netherlands | 0.1% | |
| Switzerland | 0.1% | |
| Sweden | 0.1% |
From its iShares file of 2026-10-27. How these are measured.
What did IWR hold in its SEC reports since 2019?
In IWR's SEC filings, its largest position went from Fiserv (FISV) at 0.77% on 2019-09-30 to Datadog (DDOG) at 0.62% on 2026-06-30, across 28 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-09-30 | 772 | FISV 0.77% | 5.3% |
| 2019-12-31 | 772 | FISV 0.81% | 5.4% |
| 2020-12-31 | 794 | TWLO 0.50% | 4.4% |
| 2021-12-31 | 810 | MRVL 0.61% | 4.7% |
| 2022-12-31 | 806 | ORLY 0.56% | 4.9% |
| 2023-12-31 | 801 | PSX 0.56% | 5.2% |
| 2024-12-31 | 800 | PLTR 1.29% | 6.1% |
| 2025-12-31 | 811 | HOOD 0.67% | 5.7% |
| 2026-06-30 | 823 | DDOG 0.62% | 5.6% |
The first report, then the last of each year, of the 28 reports IWR filed on SEC Form N-PORT from 2019-09-30 to 2026-06-30, each company under its ticker today. Every position of every report is in its quarterly file, and at any date at /api/v1/history/iwr/{date}.json. How these are read.
What does IWR duplicate?
The ETF nearest to IWR is IWS: the two hold 77.8% of their weight in common, in the 711 companies both own, and 83.9% of IWR itself is also held there. Owning IWR alongside the ETFs at the top of this table means holding mostly the same companies twice.
| ETF | Overlap by weight | Of IWR held there | Of that ETF in IWR | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| IWS | 77.8% | 83.9% | 100.0% | 711 | |
| IMCB | 66.4% | 71.5% | 66.6% | 326 | |
| VO | 54.6% | 57.7% | 70.8% | 227 | |
| EQAL | 53.7% | 99.7% | 78.6% | 804 | |
| SIZE | 52.5% | 70.0% | 62.7% | 312 | |
| EUSA | 51.8% | 70.0% | 60.2% | 312 | |
| RSP | 48.1% | 64.2% | 60.8% | 304 | |
| IMCG | 45.6% | 48.8% | 68.0% | 216 | |
| ONEV | 45.5% | 47.5% | 88.9% | 426 | |
| IMCV | 44.3% | 47.6% | 65.7% | 222 | |
| VB | 43.3% | 44.4% | 73.0% | 582 | |
| RSPA | 40.5% | 64.2% | 60.9% | 304 |
The holdings of VO and VB are from their SEC Form N-PORT filings for the period ended 2026-06-30, filed 2026-08-28. The other ETFs' holdings are from their issuers' latest files. Check IWR against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to IWR?
MCHI shares 0% of weight with IWR and its weekly returns correlate with it at 0.33 over three years. The table lists the covered ETFs with the least in common with IWR, 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% | 0.33 | 0 |
| IVLU | iShares MSCI Intl Value Factor ETF | 0.0% | 0.64 | 0 |
| IWY | iShares Russell Top 200 Growth ETF | 0.0% | 0.66 | 0 |
| XLG | Invesco S&P 500 Top 50 ETF | 0.0% | 0.68 | 0 |
| PFF | iShares Preferred and Income Securities ETF | 0.0% | 0.69 | 0 |
| OEF | iShares S&P 100 ETF | 0.0% | 0.74 | 0 |
| SCZ | iShares MSCI EAFE Small-Cap ETF | 0.0% | 0.74 | 0 |
| IWX | iShares Russell Top 200 Value ETF | 0.0% | 0.89 | 0 |
Cost, returns and risk
| Expense ratio | 0.18% |
|---|---|
| Dividend yield | 1.19% |
| Total return, 1 year | 16.7% |
| Total return, 3 years cumulative | 66.4% |
| Total return, 5 years cumulative | 39.9% |
| Volatility, annualised | 14.1% |
| Worst fall, 3 years | -18.9% |
| Beta against SPY, 3 years of weekly returns | 0.85 |
| Weight in the ten largest positions | 6.7% |
| Largest single position | 0.9% |
| Assets under management | $54.9B |
Expense ratio, yield and assets are reference data (the expense ratio from IWR's SEC filing of 2026-07-27); 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 | 0.84often in step | 164 |
| QQQ | 0.70often in step | 189 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 15.7% |
| 2025 | 10.4% |
| 2024 | 15.2% |
| 2023 | 17.0% |
| 2022 | -17.5% |
One year
Where to go next
- MDY, SPDR S&P MidCap 400 ETF
- QVMM, Invesco S&P MidCap 400 QVM Multi-factor ETF
- SCHM, Schwab U.S. Mid-Cap ETF
- SPMD, State Street SPDR Portfolio S&P 400™ Mid Cap ETF
- Run a portfolio x-ray to see what IWR carries once you look through it
- Compare IWR 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 Russell Mid-Cap ETF (IWR), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/iwr/, CC BY 4.0
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