Which returned more over the last year, IWM or VOO?

In the year to Sep 4, 2026, with distributions reinvested, IWM returned +26.4% and VOO returned +20.1%, so IWM returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IWM or VOO?

IWM charges 0.19% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.

How much do IWM and VOO overlap with the S&P 500?

By their latest filed holdings, 0% of IWM and 100% of VOO by weight is stocks the S&P 500 already holds.

Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.

IWM vs VOO

Name: ETFIQ comparison of IWM and VOO
Creator: ETFIQ
License: https://etfiq.com/standards/

iShares Russell 2000 ETF and Vanguard 500 Index Fund.

IWM and VOO on the fields both publish, as of Sep 4, 2026. Source: ETFIQ.
	IWM iShares Russell 2000 ETF	VOO Vanguard 500 Index Fund
Where it sits	Core fund	Core fund
Issuer	iShares	Vanguard
What it is	Russell 2000	S&P 500
Total return, 1 year	+26.4%	+20.1%
S&P 500 over the same days	+20.0%	+20.0%
Gap to the S&P 500	+6.5 pts	+0.1 pts
Expense ratio	0.19%	0.03%
Already in the S&P 500	0.0%	100.0%
Holdings	2014	506

IWM in plain words

IWM is a index equity fund tracking Russell 2000. Over the year to Sep 4, 2026 it returned +26.4% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.19% 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 2014 positions, with the top ten at 3.4%.

VOO in plain words

VOO is a index equity fund tracking S&P 500. Over the year to Sep 4, 2026 it returned +20.1% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 36.5%.

Questions people ask

Which returned more over the last year, IWM or VOO?: In the year to Sep 4, 2026, with distributions reinvested, IWM returned +26.4% and VOO returned +20.1%, so IWM returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IWM or VOO?: IWM charges 0.19% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
How much do IWM and VOO overlap with the S&P 500?: By their latest filed holdings, 0% of IWM and 100% of VOO by weight is stocks the S&P 500 already holds.

Other comparisons

Where to next

Cite this page. ETFIQ, IWM against VOO, data as of Sep 4, 2026. https://etfiq.com/compare/any/IWM-VOO.html Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. ETFIQ publishes the same fields for every fund and suggests no allocation. Standards and sources