IWB holdings and overlap

iShares Russell 1000 ETF (IWB) holds 1,024 positions in its iShares file of 2026-10-27. Its three largest are Nvidia (NVDA) at 7.15%, Apple (AAPL) at 7.06% and Microsoft (MSFT) at 5.56%, and its ten largest make up 35.3% of the fund.

In its iShares file of 2026-10-27, IWB is 36.7% technology, 12.0% financials and 9.9% health care by sector, with 33.8% in mega-cap tech and 35.4% in the ten largest US companies by market value.

Edited by VoidLab Data through Last revised

View as Markdown What changed
Connect your agent Copies a setup prompt
IWBiShares Russell 1000 ETFUS Large Blend, iShares, 1024 positions
Last close, 2026-10-28
$421.72 +0.31%
52-week range 347 to 426
Largest position
NVDA
7.15% of the ETF, Nvidia
Positions
1024
35.3% in the ten largest
Cost per year
0.15%
$15 a year on $10,000
Assets
$48.6B
under management
Return, 3 years
+82.7%
cumulative, total return
Worst fall
-17.2%
peak to trough, 3 years, weekly closes

What does IWB hold, as of its issuer file of 2026-10-27?

IWB spreads its weight across 1024 positions, against a median of 343 across the 72 US Large Blend funds with a page here. 154 of the 594 funds with a page hold NVDA, and IWB gives it more weight than all but 68 of them.

The 100 largest of the 1,024 positions in IWB's file; all 1,024 are in the fund's JSON file.
RankCompanyWeightWeight bar
1 NVDA Nvidia 7.15%
2 AAPL Apple 7.06%
3 MSFT Microsoft 5.56%
4 AMZN Amazon 3.46%
5 GOOGL Alphabet Class A 2.63%
6 AVGO Broadcom 2.24%
7 GOOG Alphabet Class C 2.12%
8 META Meta Platforms 1.92%
9 TSLA Tesla 1.68%
10 MU Micron Technology 1.47%
11 LLY Eli Lilly 1.44%
12 BRK.B Berkshire Hathaway 1.42%
13 AMD Advanced Micro Devices 1.28%
14 JPM JPMorgan Chase 1.26%
15 XOM ExxonMobil 1.04%
16 V Visa 0.96%
17 JNJ Johnson & Johnson 0.91%
18 WMT Walmart 0.74%
19 ABBV AbbVie 0.71%
20 MA Mastercard 0.69%
21 PLTR Palantir Technologies 0.62%
22 COST Costco 0.62%
23 CSCO Cisco 0.62%
24 INTC Intel 0.6%
25 CVX Chevron 0.6%
26 PG Procter & Gamble 0.52%
27 UNH UnitedHealth Group 0.52%
28 KO Coca-Cola 0.5%
29 MRK Merck 0.49%
30 BAC Bank of America 0.46%
31 CAT Caterpillar 0.46%
32 PANW Palo Alto Networks 0.46%
33 HD Home Depot 0.45%
34 PM Philip Morris International 0.44%
35 AMAT Applied Materials 0.44%
36 GE GE Aerospace 0.43%
37 LRCX Lam Research 0.42%
38 TXN Texas Instruments 0.4%
39 CRWD CrowdStrike 0.38%
40 GS Goldman Sachs 0.37%
41 RTX RTX 0.37%
42 NFLX Netflix 0.36%
43 TMO Thermo Fisher Scientific 0.36%
44 WFC Wells Fargo 0.35%
45 AMGN Amgen 0.34%
46 GEV GE Vernova 0.34%
47 IBM IBM 0.33%
48 LIN Linde 0.33%
49 ORCL Oracle 0.31%
50 MRVL Marvell Technology 0.3%
51 MS Morgan Stanley 0.29%
52 ADI Analog Devices 0.29%
53 C Citigroup 0.29%
54 KLAC KLA 0.28%
55 GILD Gilead Sciences 0.28%
56 ANET Arista Networks 0.27%
57 QCOM Qualcomm 0.27%
58 APH Amphenol 0.27%
59 DIS Walt Disney 0.27%
60 CRM Salesforce 0.27%
61 SNDK Sandisk 0.27%
62 VZ Verizon 0.26%
63 PEP PepsiCo 0.26%
64 COP ConocoPhillips 0.25%
65 ABT Abbott Laboratories 0.25%
66 UNP Union Pacific 0.25%
67 MCD McDonald's 0.25%
68 BLK BlackRock 0.24%
69 NEE NextEra Energy 0.24%
70 PFE Pfizer 0.24%
71 AXP American Express 0.23%
72 WELL Welltower 0.23%
73 NOW ServiceNow 0.22%
74 DE Deere 0.22%
75 ISRG Intuitive Surgical 0.22%
76 TJX TJX Companies 0.22%
77 DELL Dell Technologies 0.21%
78 ETN Eaton 0.21%
79 DHR Danaher 0.21%
80 SCHW Charles Schwab 0.21%
81 ACN Accenture 0.2%
82 T AT&T 0.2%
83 SPGI S&P Global 0.19%
84 VRTX Vertex Pharmaceuticals 0.19%
85 PGR Progressive 0.19%
86 WDC Western Digital 0.18%
87 UBER Uber 0.18%
88 MPC Marathon Petroleum 0.18%
89 BA Boeing 0.18%
90 LMT Lockheed Martin 0.18%
91 BMY Bristol Myers Squibb 0.18%
92 CB Chubb Limited 0.18%
93 MO Altria 0.17%
94 COF Capital One 0.17%
95 PLD Prologis 0.17%
96 NEM Newmont 0.17%
97 SBUX Starbucks 0.17%
98 ADP Automatic Data Processing 0.16%
99 CVS CVS Health 0.16%
100 BKNG Booking 0.16%

The most recent file iShares has published for IWB is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 1024 positions IWB holds, with its weight, is in the fund's JSON file. See the other 153 ETFs with a page here that hold NVDA, and how their weights compare with the 7.15% IWB 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 47% of their market's value is in larger companies (large: up to 78%); growth index funds hold 53% of their value against 55% for companies of the same sizes in the whole market (blend: within 10 points). How categories are set.

Use this data
JSONhttps://tickerinside.com/api/v1/fund/iwb.json
CSVhttps://tickerinside.com/api/v1/fund/iwb.csv
Sheets=IMPORTDATA("https://tickerinside.com/api/v1/fund/iwb.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/iwb.csv"; ","; "en_US")
curlcurl -s https://tickerinside.com/api/v1/fund/iwb.json
API reference · spreadsheet guide Add TickerInside to Claude to ask about IWB with this data

How much money went into or out of IWB?

On the close of Friday, October 23, 2026, IWB neither created nor redeemed shares. Over its last 5 closes, a net inflow of $0, 4 of them measured.

IWB's money flows on its last 14 closes, 30 Sep 2026 to 23 Oct 2026, largest inflow $63 million on 5 Oct 2026, largest outflow $125 million on 30 Sep 2026
2026-09-302026-10-23

From IWB's own holdings files. Every ETF's latest flows.

How is IWB split by sector?

SectorWeightWeight bar
Technology36.7%
Financials12.0%
Health care9.9%
Consumer discretionary9.1%
Industrials8.9%
Communication services8.8%
Consumer staples4.7%
Energy3.8%
Utilities2.0%
Real estate2.0%
Materials2.0%

From its iShares file of 2026-10-27. How these are measured.

What did IWB hold in its SEC reports since 2019?

In IWB's SEC filings, its largest position went from Microsoft (MSFT) at 3.82% on 2019-09-30 to Nvidia (NVDA) at 6.72% on 2026-06-30, across 28 quarterly reports.

Largest in 2019
MSFT
3.82% on 2019-09-30
Largest in 2026
NVDA
6.72% on 2026-06-30
Ten largest
33.5%
19.5% in 2019
Quarterly reports
28
since 2019, SEC Form N-PORT
ReportPositionsLargestTop 10
2019-09-30966MSFT 3.82%19.5%
2019-12-31966AAPL 4.39%20.6%
2020-12-31988AAPL 6.01%24.3%
2021-12-311,008AAPL 6.10%26.2%
2022-12-31998AAPL 5.49%22.1%
2023-12-31997AAPL 6.45%28.0%
2024-12-31999AAPL 6.63%33.8%
2025-12-311,009NVDA 6.95%36.1%
2026-06-301,024NVDA 6.72%33.5%

The first report, then the last of each year, of the 28 reports IWB 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/iwb/{date}.json. How these are read.

What does IWB duplicate?

The ETF nearest to IWB is IYY: the two hold 98.1% of their weight in common, in the 890 companies both own, and 99.0% of IWB itself is also held there. Owning IWB alongside the ETFs at the top of this table means holding mostly the same companies twice. IWB is close to contained in IYY.

ETFOverlap by weightOf IWB held thereOf that ETF in IWBCompanies in bothOverlap bar
IYY 98.1% 99.0% 99.2% 890
IWV 95.9% 100.0% 96.1% 1024
SPTM 95.8% 97.2% 97.0% 878
ITOT 95.1% 99.5% 95.6% 996
SCHX 94.0% 96.9% 99.4% 735
PBUS 93.3% 94.0% 99.4% 508
SCHB 93.1% 99.3% 95.5% 974
SPY 92.5% 92.7% 99.6% 498
SPYM 92.5% 92.7% 99.6% 498
IVV 92.5% 92.7% 99.6% 498
VONE 92.5% 98.9% 99.6% 950
XYLD 92.4% 92.7% 99.4% 498

The holdings of SCHX and SCHB are from their SEC Form N-PORT filings for the period ended 2026-08-31, filed 2026-10-27. VONE'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 IWB against any ETF in the ETF overlap calculator · how overlap is measured.

What adds something different to IWB?

MCHI shares 0% of weight with IWB and its weekly returns correlate with it at 0.38 over three years. The table lists the covered ETFs with the least in common with IWB, least shared weight first and, among equals, lowest correlation.

ETFNameOverlap by weightCorrelation, 3yCompanies in both
MCHI iShares MSCI China ETF 0.0% 0.38 0
IVLU iShares MSCI Intl Value Factor ETF 0.0% 0.61 0
PFF iShares Preferred and Income Securities ETF 0.0% 0.65 0
SCZ iShares MSCI EAFE Small-Cap ETF 0.0% 0.72 0
IQLT iShares MSCI Intl Quality Factor ETF 0.0% 0.73 0
XSMO Invesco S&P SmallCap Momentum ETF 0.0% 0.73 1
IPAC iShares Core MSCI Pacific ETF 0.0% 0.73 0
IWC iShares Micro-Cap ETF 0.0% 0.75 0

Cost, returns and risk

Expense ratio0.15%
Dividend yield0.92%
Total return, 1 year14.0%
Total return, 3 years cumulative82.7%
Total return, 5 years cumulative70.3%
Volatility, annualised13.9%
Worst fall, 3 years-17.2%
Beta against SPY, 3 years of weekly returns1.0
Weight in the ten largest positions35.3%
Largest single position7.2%
Assets under management$48.6B

Expense ratio, yield and assets are reference data (the expense ratio from IWB'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

AgainstCorrelation, 3 yearsCovariance, annualised, in percent squared
SPY1.00almost always in step192
QQQ0.93usually in step252

Weekly total returns. What the bands mean · why the covariance is printed.

Year by year

YearTotal return
202613.7%
202517.2%
202424.3%
202326.4%
2022-19.2%

One year

IWB 116 SPY 116
2025-11-072026-10-30
IWB rebased to 100 a year ago, weekly closes, prices through 2026-10-28.

Where to go next

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 1000 ETF (IWB), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/iwb/, CC BY 4.0

<a href="https://tickerinside.com/etf/iwb/">TickerInside</a> (https://tickerinside.com/etf/iwb/)