Which returned more over the last year, IWO or VTWO?

In the year to Sep 12, 2026, with distributions reinvested, IWO returned +17.0% and VTWO returned +21.4%, so VTWO returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IWO or VTWO?

IWO charges 0.24% a year and VTWO charges 0.07%, so VTWO is cheaper. Fees come from each fund's prospectus.

How much do IWO and VTWO overlap with the S&P 500?

By their latest filed holdings, 0% of IWO and 0% of VTWO by weight is stocks the S&P 500 already holds. Between the two funds, 43% 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.

ETFIQetfiq.com · independent ETF data

IWO vs VTWO: how they differ

IWO and VTWO hold 43% of their weight in the same names, and VTWO returned more over the year.

iShares Russell 2000 Growth ETF and Vanguard Russell 2000 Index Fund.

What they hold in common

By the books each fund has filed, IWO and VTWO hold 43% of their money in the same securities at the same weight.

Positions IWO and VTWO both hold, largest shared weight first
Holding	IWO	VTWO
Hut 8 Corp.	0.38%	0.36%
D-Wave Quantum, Inc.	0.53%	0.32%
Moog, Inc.	0.73%	0.30%
Riot Platforms, Inc.	0.39%	0.28%
Praxis Precision Medicines, Inc.	0.51%	0.27%
Argan, Inc.	0.66%	0.26%
FirstCash Holdings, Inc.	0.54%	0.26%
EnerSys	0.49%	0.25%
Rigetti Computing, Inc.	0.37%	0.24%
StoneX Group, Inc.	0.52%	0.24%
BrightSpring Health Services, Inc.	0.68%	0.23%
Core Scientific, Inc.	0.42%	0.23%

Largest positions each one holds and the other does not
Only in IWO	Only in VTWO
JFrog Ltd. 0.60%	Bloom Energy Corp 1.83%
Alkermes plc 0.42%	Credo Technology Group Holding Ltd 1.12%
Joby Aviation, Inc. 0.36%	Sterling Infrastructure Inc 0.76%
AXT, Inc. 0.27%	Fabrinet 0.69%
Noble Corp. plc 0.27%	Nextpower Inc 0.67%
ServiceTitan, Inc. 0.26%	IonQ Inc 0.63%
Constellium SE 0.26%	Coeur Mining Inc 0.58%
Ondas, Inc. 0.24%	TTM Technologies Inc 0.52%

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 and May 31, 2026.

IWO and VTWO on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IWO iShares Russell 2000 Growth ETF	VTWO Vanguard Russell 2000 Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	Russell 2000 Growth	Russell 2000
Total return, 1 year	+17.0%	+21.4%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−0.5 pts	+3.9 pts
Expense ratio	0.24%	0.07%
Already in the S&P 500	0.0%	0.5%
Holdings	1133	1951

IWO in plain words

IWO is an index equity fund tracking the Russell 2000 Growth. Over the year to Sep 11, 2026 it returned +17.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.24% 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 1133 positions, with the top ten at 6.1%. It sat 7.1% below its high of Aug 14, 2026 on Sep 11, 2026.

VTWO in plain words

VTWO is an index equity fund tracking the Russell 2000. Over the year to Sep 11, 2026 it returned +21.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for May 31, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1951 positions, with the top ten at 7.8%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IWO or VTWO?: In the year to Sep 12, 2026, with distributions reinvested, IWO returned +17.0% and VTWO returned +21.4%, so VTWO returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IWO or VTWO?: IWO charges 0.24% a year and VTWO charges 0.07%, so VTWO is cheaper. Fees come from each fund's prospectus.
How much do IWO and VTWO overlap with the S&P 500?: By their latest filed holdings, 0% of IWO and 0% of VTWO by weight is stocks the S&P 500 already holds. Between the two funds, 43% 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.

IWO against VTWO, 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, IWO against VTWO, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWO-VTWO Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources