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IWB
Passive ETF
NYSE

iShares Russell 1000 ETF

The iShares Russell 1000 ETF (IWB) seeks to track the investment results of the Russell 1000 Index, which measures the performance of large- and mid-cap U.S. equities. Representing about 95% of the total U.S. market capitalization, the index offers broad exposure across sectors, with significant weight in technology. Managed by BlackRock Fund Advisors (BFA), the ETF uses a representative sampling strategy to mirror the index’s risk and return profile, aiming to keep costs and turnover low. The fund invests at least 80% of its assets in component securities, with the flexibility to allocate up to 20% to derivatives, cash equivalents,...

Passive ETF
Last update 3/11/2026 at 1:30 PM
Live
Closed
This fund is part of
US Large Cap
-0.2%
Last Price
$370.42
% Change
-0.12%
1W flows
+$373M
1m flows
-$155M
AuM
$45.46B
E/R
0.15%
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Trading data

Last sale
3/11/2026 at 1:30 PM
$370.42
Previous close
$370.85
Consolidated volume
03/10/2026
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Average volume
30 days
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Average discount or premium
30 days
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Average Bid/Ask spread
30 days
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IWB performance and flow charts

Performance

-3.0-2.5-2.0-1.5-1.0-0.50.00.5%Feb 10Feb 12Feb 17Feb 19Feb 23Feb 26Mar 2Mar 4Mar 6Mar 10

Flows

-600 M-400 M-200 M0 M200 M

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Historic performance and flows

Data as of March 10, 2026
1M3MYTD1Y3Y5Y
Perf.-2.28%-1.33%-0.68%+22.03%+81.12%+79.30%
Flows-$155M-$52M-$501M+$813M-$1.15B+$23M
Data as of March 10, 2026

Volatility and drawdown

3M1Y3Y5Y
Volatility+11.94%+18.43%+15.00%+17.13%
Max drawdown
-3.31%-13.95%-19.16%-25.17%
Max drawdown duration
42d45d126d709d
Time to recover
N/A32d79d428d

Replication quality

Data as of February 27, 2026
1-year trailing difference

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Tracking error
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Tracking difference
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1 year cumulative return difference
Best
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Worst
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daily return difference
Average
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Worst
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Exposure

Data as of January 31, 2026

Countries

USA
96.57%
Other
3.43%

Sectors

Information Technology
33.11%
Financials
10.83%
Communication Services
10.58%
Consumer Discretionary
10.55%
Health Care
9.31%
Industrials
8.57%
Other
17.06%

Diversification

Total weight of top 15 holdings out of 1,008

40.55%

Top 15 Holdings

NVIDIA
7.05%
APPLE
5.89%
MICROSOFT-T
5.03%
AMAZON.COM INC
3.63%
ALPHABET INC-CL
3.08%
META PLATFORMS
2.52%
ALPHABET INC-CL
2.51%
BROADCOM LIMITED
2.39%
TESLA
1.84%
BERKSHIRE HATHWAY
1.38%
JPMORGAN CHASE
1.3%
LILLY
1.28%
EXXON
0.93%
VISA INCORPORATION
0.87%
JOHNSON&JOHNSON
0.86%

Characteristics

The iShares Russell 1000 ETF is built to track the Russell 1000 Total Return Index - USD. This ETF provides physical exposure - by owning its shares you earn the return of the securities composing the index (as the ETF holds them directly).

This share class generates a stream of income by distributing dividends.

Management strategyPassive
ProvideriShares
N° of holdings1008
Replication methodDirect (Physical)
Asset classEquities
Dividend policyDistributing
Trailing 12m distribution yield
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Inception dateMay 15, 2000
ESGNo

The ETF Institute® is now affiliated with ETF Central

The CETF certification is the only FINRA listed professional designation focused on ETFs.

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Frequently asked questions about IWB

What type of ETF is IWB?

IWB is a Passive ETF that provides exposure to Equity assets. It is managed by iShares.

What index does IWB track?

IWB tracks the Russell 1000 Total Return Index - USD, aiming to replicate its performance through full replication.

What does IWB invest in?

This ETF provides exposure to Large and Mid-Cap US Equities. It is part of the segment: US Large Cap.

What is the expense ratio of IWB?

The total expense ratio (TER) of IWB is 0.15%, representing the annual fee charged by the fund manager.

When was IWB launched?

IWB was launched on May 15, 2000, marking its entry into the ETF market.

Who is the issuer of IWB?

IWB is issued by iShares.

What is the AUM of IWB?

As of March 10, 2026, IWB manages $45.46 B, reflecting the total assets held in the fund.

How has IWB performed recently?

As of March 10, 2026, IWB delivered a return of -2.28% over the past month (1M performance), -1.33% over the past three months (3M), and -0.68% year-to-date (YTD).

What are the recent fund flows for IWB?

As of March 10, 2026, IWB has seen net flows of -$155M in the past month (1M flow) and -$501M year-to-date (YTD).

Does IWB pay dividends?

As of March 10, 2026, IWB has a trailing 12-month distribution yield of 1.01%.

How many holdings are in IWB

As of January 31, 2026, IWB holds 1008 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.

How diversified is IWB?

As of January 31, 2026, IWB holds 1008 securities, with 40.55% of its assets concentrated in its top 15 holdings.

What are the top holdings of IWB?

As of January 31, 2026, IWB holds a portfolio of 1008 underlyings, with its largest positions including NVIDIA, APPLE and MICROSOFT-T. These top holdings play a significant role in shaping the fund’s performance and exposure.

What countries or regions does IWB invest in?

As of January 31, 2026, IWB has its largest geographic exposures in USA.

What sectors or themes does IWB focus on?

As of January 31, 2026, IWB is primarily exposed to Information Technology, Financials and Communication Services.

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