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IWB vs IYZ: Differences, Returns & Fees

IWB and IYZ hold 2% of their weight in the same names, and IYZ returned +31.6% over the year. Net assets on Oct 9, 2026: $49.6bn for iShares Russell 1000 ETF and $1.1bn for iShares U.S. Telecommunications ETF.

IWB costs 0.22 points a year less; their one-year returns differ by 15.0 points; IWB is far larger, $49.6bn against $1.1bn.

IWB vs IYZ: Differences, Returns & Fees
IWBIYZ
Expense ratio0.15%0.37%
Net assets$49.6bn$1.1bn
Total return, 1 year+16.6%+31.6%
What it tracksRussell 1000 IndexRussell 1000 Telecommunications RIC 22
Holdings in common2%
Top ten holdings, share of the fund36.1%71.3%
Below its high6.4%, high on Jun 2, 2026

Holdings in common uses holdings dated Oct 9, 2026.

+16.6%
IWB total return, 1 year
+31.6%
IYZ total return, 1 year
0.15%
IWB expense ratio
0.37%
IYZ expense ratio

What they hold in common

By the books each fund has filed, IWB and IYZ hold 2% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 9, 2026.

half

2% in common

Positions both hold, largest shared weight first
Holding IWB IYZ
CISCO SYSTEMS INC 0.65% 24.08%
ARISTA NETWORKS 0.31% 12.31%
VERIZON COMMUNICATIONS INC 0.24% 9.46%
AT&T 0.21% 3.93%
SPACE EXPLORATION TECHNOLOGIES COR 0.14% 3.94%
LUMENTUM HOLDINGS 0.12% 3.82%
COMCAST CLASS A 0.10% 2.98%
MOTOROLA SOLUTIONS INC 0.10% 3.30%
T MOBILE US INC 0.10% 2.96%
CIENA 0.09% 4.12%
ROKU CLASS A 0.03% 2.79%
AST SPACEMOBILE CLASS A 0.02% 2.24%
Only in IWB
NVIDIA 7.44%
APPLE 6.77%
MICROSOFT 5.53%
AMAZON.COM INC 3.54%
ALPHABET CLASS A 2.85%
BROADCOM INC 2.34%
ALPHABET CLASS C 2.30%
META PLATFORMS CLASS A 2.20%
Only in IYZ
RUSSELL1000 VALUE MINI CME DEC 26 0.00%

Check overlap with more funds →

On the same fields

IWB
iShares Russell 1000 ETF
IYZ
iShares U.S. Telecommunications ETF
Where it sits Stock ETF Stock ETF
Issuer iShares iShares
What it is Tracks the Russell 1000 Tracks an index
Total return, 1 year +16.6% +31.6%
Its benchmark over the same days +16.8% (VONE) not published
Gap to its benchmark −0.1 pts vs VONE not available
Expense ratio 0.15% 0.37%
Already in the S&P 500 91.7% 71.2%
Holdings 1025 23
Net assets $49.6bn $1.1bn

IWB and IYZ on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

About IWB

IWB tracks the Russell 1000. Over the year to Oct 9, 2026 it returned +16.6% with distributions reinvested, against +16.8% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 9, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 36.1%.

About IYZ

IYZ tracks an index. Over the year to Oct 9, 2026 it returned +31.6% with distributions reinvested. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 9, 2026, 71% of the fund by weight is stocks the S&P 500 also holds, across 23 positions, with the top ten at 71.3%. It sat 6.4% below its high of Jun 2, 2026 on Oct 9, 2026.

Questions people ask

Which returned more over the last year, IWB or IYZ?
In the year to Oct 9, 2026, with distributions reinvested, IWB returned +16.6% and IYZ +31.6%.
Which is cheaper, IWB or IYZ?
IWB is cheaper, by 0.22 percentage points a year. That is about $22 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IWB and IYZ overlap with the S&P 500?
By their latest filed holdings, 92% of IWB and 71% of IYZ by weight is stocks the S&P 500 already holds.
Other comparisons
IWB vs MODLIWB vs QLCIWB vs VOTEIWB vs SPHBIYZ vs QUALIYZ vs SCHBIYZ vs RDVYIYZ vs USMV
IWB on its own →IYZ on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
IWB and IYZ filings on SEC EDGAR ↗IWB and IYZ prospectus with the expense ratio (SEC) ↗iShares page for IWB ↗iShares page for IYZ ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, IWB against IYZ, data as of Oct 9, 2026. https://etfiq.com/compare/any/iwb-vs-iyz

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.