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

In the year to Sep 4, 2026, with distributions reinvested, ICLN returned +25.3% and VOO returned +20.1%, so ICLN returned more. One year is one year; the longer windows are in the table.

Which is cheaper, ICLN or VOO?

ICLN charges 0.38% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.

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

By their latest filed holdings, 7% of ICLN and 100% of VOO by weight is stocks the S&P 500 already holds.

Are ICLN and VOO the same kind of fund?

No. ICLN is a thematic ETF and VOO is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.

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

ICLN vs VOO

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

iShares Global Clean Energy ETF and Vanguard 500 Index Fund.

ICLN and VOO on the fields both publish, as of Sep 4, 2026. Source: ETFIQ.
	ICLN iShares Global Clean Energy ETF	VOO Vanguard 500 Index Fund
Where it sits	Themes desk	Core fund
Issuer	iShares	Vanguard
What it is	Clean energy	S&P 500
Total return, 1 year	+25.3%	+20.1%
S&P 500 over the same days	+20.0%	+20.0%
Gap to the S&P 500	+5.3 pts	+0.1 pts
Expense ratio	0.38%	0.03%
Already in the S&P 500	7.2%	100.0%
Holdings	122	506

ICLN in plain words

By weight, 7% of ICLN's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 52% of the fund across 122 positions, as filed for Apr 30, 2026. Over the year to Sep 4, 2026 the fund returned +25.3% with distributions reinvested against +20.0% for the S&P 500, so a holder was ahead by 5.3 pts. It sits 42.8% below its all-time high of Jan 7, 2021.

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, ICLN or VOO?: In the year to Sep 4, 2026, with distributions reinvested, ICLN returned +25.3% and VOO returned +20.1%, so ICLN returned more. One year is one year; the longer windows are in the table.
Which is cheaper, ICLN or VOO?: ICLN charges 0.38% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
How much do ICLN and VOO overlap with the S&P 500?: By their latest filed holdings, 7% of ICLN and 100% of VOO by weight is stocks the S&P 500 already holds.
Are ICLN and VOO the same kind of fund?: No. ICLN is a thematic ETF and VOO is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.

Other comparisons

Where to next

Cite this page. ETFIQ, ICLN against VOO, data as of Sep 4, 2026. https://etfiq.com/compare/any/ICLN-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