IWC holdings and overlap
iShares Micro-Cap ETF (IWC) holds 1,354 positions in its iShares file of 2026-10-27. Its three largest are CareDx (CDNA) at 0.88%, Penguin Solutions (PENG) at 0.73% and Nurix Therapeutics (NRIX) at 0.63%, and its ten largest make up 5.9% of the fund.
In its iShares file of 2026-10-27, IWC is 26.1% health care, 26.0% financials and 13.4% industrials by sector, with none of it in mega-cap tech or in the ten largest US companies by market value. By country, 96.7% of IWC is in the United States, 1.1% in Canada.
What does IWC hold, as of its issuer file of 2026-10-27?
CareDx is 0.88% of IWC on its own, against a median largest position of 0.6% across the 14 US Small-Cap Blend funds with a page here. No fund in that group costs more than IWC, at 0.60% a year.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | CDNA CareDx | 0.88% | |
| 2 | PENG Penguin Solutions | 0.73% | |
| 3 | NRIX Nurix Therapeutics | 0.63% | |
| 4 | SLS SELLAS Life Sciences Group | 0.6% | |
| 5 | VRDN Viridian Therapeutics | 0.59% | |
| 6 | OUST Ouster | 0.53% | |
| 7 | TILE Interface | 0.52% | |
| 8 | ASST Strive | 0.5% | |
| 9 | PURR Hyperliquid Strategies Inc | 0.46% | |
| 10 | XERS Xeris Biopharma | 0.44% | |
| 11 | PRCH Porch Group | 0.44% | |
| 12 | LIND Lindblad Expeditions | 0.43% | |
| 13 | DCOM Dime Commercial Bancshares | 0.43% | |
| 14 | QCRH QCR | 0.41% | |
| 15 | MBX MBX Biosciences | 0.4% | |
| 16 | BFLY Butterfly Network | 0.4% | |
| 17 | CNOB ConnectOne Bancorp | 0.4% | |
| 18 | NAT Nordic American Tankers Limited | 0.39% | |
| 19 | ABSI Absci | 0.39% | |
| 20 | OBK Origin Bancorp | 0.38% | |
| 21 | TRAX First Tracks Biotherapeutics Inc | 0.37% | |
| 22 | BFC Bank First | 0.37% | |
| 23 | BAND Bandwidth | 0.36% | |
| 24 | EFC Ellington Financial | 0.36% | |
| 25 | URGN UroGen Pharma | 0.35% | |
| 26 | INOD Innodata | 0.35% | |
| 27 | PNTG The Pennant Group | 0.35% | |
| 28 | ARLO Arlo Technologies | 0.35% | |
| 29 | ALNT Allient | 0.34% | |
| 30 | PEBO Peoples Bancorp | 0.34% | |
| 31 | ETON Eton Pharmaceuticals | 0.33% | |
| 32 | IDT IDT | 0.33% | |
| 33 | TPB Turning Point Brands | 0.31% | |
| 34 | OMER Omeros | 0.31% | |
| 35 | FMBH First Mid Bancshares | 0.31% | |
| 36 | SCSC ScanSource | 0.31% | |
| 37 | OSBC Old Second Bancorp | 0.31% | |
| 38 | UFCS United Fire Group Inc | 0.3% | |
| 39 | REAL The RealReal | 0.3% | |
| 40 | BHRB Burke & Herbert Financial Services | 0.3% | |
| 41 | CRAI CRA International,Inc. | 0.3% | |
| 42 | MYE Myers Industries | 0.3% | |
| 43 | BY Byline Bancorp | 0.29% | |
| 44 | UVE UNIVERSAL INSURANCE HOLDINGS INC | 0.29% | |
| 45 | UVSP Univest Financial | 0.29% | |
| 46 | PGEN Precigen | 0.29% | |
| 47 | RPD Rapid7 | 0.29% | |
| 48 | PSNL Personalis | 0.28% | |
| 49 | APPS Digital Turbine | 0.28% | |
| 50 | NUVB Nuvation Bio | 0.28% | |
| 51 | CTBI Community Trust Bancorp | 0.28% | |
| 52 | AMBQ Ambiq Micro | 0.28% | |
| 53 | REX REX American Resources | 0.28% | |
| 54 | PRSU Pursuit Attractions and Hospitality | 0.27% | |
| 55 | MAZE Maze Therapeutics | 0.27% | |
| 56 | BJRI BJ's Restaurants | 0.27% | |
| 57 | AVAH Aveanna Healthcare | 0.27% | |
| 58 | WLDN Willdan Group | 0.27% | |
| 59 | VTOL Bristow Group | 0.27% | |
| 60 | MCB Metropolitan Bank | 0.26% | |
| 61 | LQDT Liquidity Services | 0.26% | |
| 62 | HBNC Horizon Bancorp | 0.26% | |
| 63 | REPL Replimune Group | 0.26% | |
| 64 | HZO FL MarineMax | 0.26% | |
| 65 | CCNE CNB Financial | 0.26% | |
| 66 | NUTX Nutex Health | 0.26% | |
| 67 | ORC Orchid Island Capital | 0.26% | |
| 68 | MBWM Mercantile Bank | 0.26% | |
| 69 | CSTL Castle Biosciences | 0.25% | |
| 70 | AMTB Amerant Bancorp | 0.25% | |
| 71 | ATEX Anterix | 0.25% | |
| 72 | CRML Critical Metals | 0.25% | |
| 73 | NBN Northeast Bank | 0.25% | |
| 74 | BFST Business First Bancshares | 0.25% | |
| 75 | DEC Diversified Energy | 0.25% | |
| 76 | PLSE Pulse Biosciences | 0.25% | |
| 77 | ESQ Esquire Financial | 0.25% | |
| 78 | UTL Unitil Corp | 0.24% | |
| 79 | ZBIO Zenas BioPharma | 0.24% | |
| 80 | CBL CBL & Associates Properties | 0.24% | |
| 81 | CAC Camden National | 0.24% | |
| 82 | HAFC Hanmi Financial | 0.24% | |
| 83 | CDRE Cadre | 0.24% | |
| 84 | FET Forum Energy Technologies | 0.24% | |
| 85 | NWPX NWPX Infrastructure | 0.23% | |
| 86 | TRST TrustCo Bank Corp NY | 0.23% | |
| 87 | AMAL Amalgamated Financial | 0.23% | |
| 88 | SIBN SI-BONE | 0.23% | |
| 89 | HROW Harrow | 0.23% | |
| 90 | GPRE Green Plains | 0.23% | |
| 91 | NPKI NPK International | 0.23% | |
| 92 | NX Quanex Building Products | 0.23% | |
| 93 | RIGL Rigel Pharmaceuticals | 0.23% | |
| 94 | RDVT Red Violet | 0.23% | |
| 95 | PLOW Douglas Dynamics | 0.23% | |
| 96 | FMNB Farmers National Banc | 0.23% | |
| 97 | SXC SunCoke Energy | 0.22% | |
| 98 | THFF First Financial | 0.22% | |
| 99 | TDAY USA TODAY | 0.22% | |
| 100 | HRTG Heritage Insurance | 0.22% |
The most recent file iShares has published for IWC is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 1354 positions IWC holds, with its weight, is in the fund's JSON file. See the other 34 ETFs with a page here that hold CDNA, and how their weights compare with the 0.88% IWC gives it.
Category: US Small-Cap Blend, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, 97% of its stocks are US companies; weighted by holding, they sit where 100% of their market's value is in larger companies (small: over 94%); growth index funds hold 42% of their value against 41% for companies of the same sizes in the whole market (blend: within 10 points). How categories are set.
https://tickerinside.com/api/v1/fund/iwc.jsonhttps://tickerinside.com/api/v1/fund/iwc.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/iwc.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/iwc.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/iwc.jsonHow much money went into or out of IWC?
On the close of Friday, October 23, 2026, IWC neither created nor redeemed shares. Over its last 5 closes, a net outflow of $44 million, 4 of them measured.
From IWC's own holdings files. Every ETF's latest flows.
How is IWC split by sector and country?
| Sector | Weight | Weight bar |
|---|---|---|
| Health care | 26.1% | |
| Financials | 26.0% | |
| Industrials | 13.4% | |
| Technology | 11.6% | |
| Consumer discretionary | 6.9% | |
| Materials | 3.9% | |
| Energy | 3.2% | |
| Communication services | 3.1% | |
| Real estate | 2.7% | |
| Consumer staples | 1.8% | |
| Utilities | 0.9% | |
| No sector found | 0.1% |
| Country | Weight | Weight bar |
|---|---|---|
| United States | 96.7% | |
| Canada | 1.1% | |
| Bermuda | 0.7% | |
| Israel | 0.3% | |
| Australia | 0.2% | |
| United Kingdom | 0.2% | |
| Ireland | 0.2% | |
| Monaco | 0.1% |
From its iShares file of 2026-10-27. How these are measured.
What did IWC hold in its SEC reports since 2019?
In IWC's SEC filings, its largest position went from Independence Realty Trust, Inc. (IRT) at 0.41% on 2019-09-30 to Ouster, Inc. (OUST) at 0.86% on 2026-06-30, across 28 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-09-30 | 1,266 | IRT 0.41% | 3.3% |
| 2019-12-31 | 1,240 | AXSM 0.71% | 4.6% |
| 2020-12-31 | 1,197 | APPS 1.21% | 6.6% |
| 2021-12-31 | 1,593 | ASTH 0.54% | 4.0% |
| 2022-12-31 | 1,611 | RXDX 0.89% | 5.1% |
| 2023-12-31 | 1,418 | IMGN 1.73% | 6.9% |
| 2024-12-31 | 1,383 | SOUN 1.47% | 6.2% |
| 2025-12-31 | 1,292 | PRAX 1.42% | 9.6% |
| 2026-06-30 | 1,357 | OUST 0.86% | 5.5% |
The first report, then the last of each year, of the 28 reports IWC 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/iwc/{date}.json. How these are read.
What does IWC share with other ETFs?
The ETF nearest to IWC is DWAS: the two hold 15.2% of their weight in common, in the 77 companies both own, and 16.0% of IWC itself is also held there. IWC barely overlaps any covered ETF.
| ETF | Overlap by weight | Of IWC held there | Of that ETF in IWC | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| DWAS | 15.2% | 16.0% | 35.4% | 77 | |
| SMLV | 14.1% | 15.1% | 25.3% | 100 | |
| KRE | 13.5% | 14.2% | 17.0% | 67 | |
| VTWV | 13.3% | 68.3% | 13.5% | 656 | |
| IWM | 13.0% | 94.4% | 13.0% | 915 | |
| OMFS | 12.7% | 54.2% | 13.5% | 402 | |
| AVUV | 12.0% | 41.4% | 12.0% | 363 | |
| PRFZ | 11.6% | 66.2% | 11.6% | 546 | |
| IWO | 10.5% | 53.6% | 10.6% | 479 | |
| VTWO | 10.0% | 87.2% | 10.1% | 828 | |
| VFMF | 9.9% | 20.6% | 11.0% | 113 | |
| XBI | 9.3% | 9.8% | 10.5% | 52 |
The holdings of VTWV, AVUV, VTWO and VFMF are from their SEC Form N-PORT filings for the period ended 2026-05-31, filed 2026-07-29. The other ETFs' holdings are from their issuers' latest files. Check IWC against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to IWC?
IYR shares 0% of weight with IWC and its weekly returns correlate with it at 0.57 over three years. The table lists the covered ETFs with the least in common with IWC, least shared weight first and, among equals, lowest correlation.
| ETF | Name | Overlap by weight | Correlation, 3y | Companies in both |
|---|---|---|---|---|
| IYR | iShares U.S. Real Estate ETF | 0.0% | 0.57 | 0 |
| SOXX | iShares Semiconductor ETF | 0.0% | 0.60 | 0 |
| USMV | iShares MSCI USA Min Vol Factor ETF | 0.0% | 0.61 | 0 |
| REET | iShares Global REIT ETF | 0.0% | 0.61 | 0 |
| THRO | iShares U.S. Thematic Rotation Active ETF | 0.0% | 0.69 | 0 |
| URTH | iShares MSCI World ETF | 0.0% | 0.75 | 0 |
| VLUE | iShares MSCI USA Value Factor ETF | 0.0% | 0.76 | 0 |
| SUSA | iShares ESG Optimized MSCI USA ETF | 0.0% | 0.77 | 0 |
Cost, returns and risk
| Expense ratio | 0.60% |
|---|---|
| Dividend yield | 1.05% |
| Total return, 1 year | 17.4% |
| Total return, 3 years cumulative | 90.6% |
| Total return, 5 years cumulative | 23.1% |
| Volatility, annualised | 22.8% |
| Worst fall, 3 years | -26.9% |
| Beta against SPY, 3 years of weekly returns | 1.2 |
| Weight in the ten largest positions | 5.9% |
| Largest single position | 0.9% |
| Assets under management | $1.4B |
Expense ratio, yield and assets are reference data (the expense ratio from IWC'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 | 0.73often in step | 230 |
| QQQ | 0.64loosely linked | 282 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 15.8% |
| 2025 | 22.5% |
| 2024 | 13.6% |
| 2023 | 9.0% |
| 2022 | -21.9% |
One year
Where to go next
- IWM, iShares Russell 2000 ETF
- MSML, iShares MSCI USA Small-Cap ETF
- PRFZ, Invesco RAFI US 1500 Small-Mid ETF
- QVMS, Invesco S&P SmallCap 600 QVM Multi-factor ETF
- Run a portfolio x-ray to see what IWC carries once you look through it
- Compare IWC 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 Micro-Cap ETF (IWC), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/iwc/, CC BY 4.0
<a href="https://tickerinside.com/etf/iwc/">TickerInside</a> (https://tickerinside.com/etf/iwc/)