Which returned more over the last year, IWF or VXF?

In the year to Sep 12, 2026, with distributions reinvested, IWF returned +7.0% and VXF returned +14.1%, so VXF returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IWF or VXF?

IWF charges 0.18% a year and VXF charges 0.05%, so VXF is cheaper. Fees come from each fund's prospectus.

How much do IWF and VXF overlap with the S&P 500?

By their latest filed holdings, 94% of IWF and 0% of VXF by weight is stocks the S&P 500 already holds. Between the two funds, 6% of their books are the same securities at the same weight.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

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IWF vs VXF: how they differ

IWF and VXF hold 6% of their weight in the same names, and VXF returned more over the year.

iShares Russell 1000 Growth ETF and Vanguard Extended Market Index Fund.

What they hold in common

By the books each fund has filed, IWF and VXF hold 6% of their money in the same securities at the same weight.

Positions IWF and VXF both hold, largest shared weight first
Holding	IWF	VXF
SNOWFLAKE INC.	0.25%	1.03%
SPACE EXPLORATION TECHNOLOGIES CORP.	0.24%	1.19%
BLOOM ENERGY CORPORATION	0.24%	0.93%
CLOUDFLARE, INC.	0.23%	0.92%
Astera Labs, Inc	0.22%	0.76%
ROCKET LAB CORPORATION	0.16%	0.61%
Credo Technology Group Holding Ltd	0.13%	0.52%
ALNYLAM PHARMACEUTICALS, INC.	0.12%	0.47%
NATERA, INC.	0.11%	0.46%
REVOLUTION MEDICINES, INC.	0.11%	0.44%
COREWEAVE, INC.	0.10%	0.31%
ROBLOX CORPORATION	0.10%	0.43%

Largest positions each one holds and the other does not
Only in IWF	Only in VXF
NVIDIA CORPORATION 13.85%	Sunbelt Rentals Holdings Inc 0.36%
APPLE INC. 6.72%	Strategy Inc 0.34%
ALPHABET INC. 6.18%	Amrize Ltd 0.32%
BROADCOM INC. 5.21%	Illumina Inc 0.31%
ALPHABET INC. 4.98%	Markel Group Inc 0.29%
MICROSOFT CORPORATION 4.11%	United Therapeutics Corp 0.27%
MICRON TECHNOLOGY, INC. 3.86%	Zoom Video Communications Inc 0.27%
TESLA, INC. 3.65%	Okta Inc 0.27%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026.

IWF and VXF on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IWF iShares Russell 1000 Growth ETF	VXF Vanguard Extended Market Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	Russell 1000 growth	Extended Market
Total return, 1 year	+7.0%	+14.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−10.5 pts	−3.4 pts
Expense ratio	0.18%	0.05%
Already in the S&P 500	93.6%	0.0%
Holdings	368	3365

IWF in plain words

IWF is an index equity fund tracking the Russell 1000 growth. Over the year to Sep 11, 2026 it returned +7.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.18% a year. By its holdings filed for Jun 30, 2026, 94% of the fund by weight is stocks the S&P 500 also holds, across 368 positions, with the top ten at 54.4%. It sat 5.0% below its high of Jun 1, 2026 on Sep 11, 2026.

VXF in plain words

VXF is an index equity fund tracking the Extended Market. Over the year to Sep 11, 2026 it returned +14.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 3365 positions, with the top ten at 7.6%. It sat 5.1% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IWF or VXF?: In the year to Sep 12, 2026, with distributions reinvested, IWF returned +7.0% and VXF returned +14.1%, so VXF returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IWF or VXF?: IWF charges 0.18% a year and VXF charges 0.05%, so VXF is cheaper. Fees come from each fund's prospectus.
How much do IWF and VXF overlap with the S&P 500?: By their latest filed holdings, 94% of IWF and 0% of VXF by weight is stocks the S&P 500 already holds. Between the two funds, 6% of their books are the same securities at the same weight.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

IWF against VXF, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IWF against VXF, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWF-VXF Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources