Which is more different from the S&P 500, CSIO or EFRA?

CSIO has 54% of its weight in S&P 500 names and EFRA has 26%, so EFRA differs more from the index.

Which is cheaper, CSIO or EFRA?

CSIO charges 0.65% a year and EFRA charges 0.47%, so EFRA is cheaper. Fees come from each fund's prospectus.

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CSIO vs EFRA: which is really different?

CSIO holds 54.2% of its weight in S&P 500 companies and EFRA 25.8%. Cohen & Steers Infrastructure Opportunities Active ETF and iShares Environmental Infrastructure and Industrials ETF.

EFRA costs 0.18 points a year less; CSIO is 8.1 times larger.

	CSIO	EFRA
Expense ratio	0.65%	0.47%
Net assets, CSIO as of Jun 30, 2026 and EFRA as of Oct 8, 2026	$44m	$5m
Total return, 1 year	not published	+5.6%
What it tracks	Infrastructure	Infrastructure
Holdings in common	not published
S&P 500, total return, since Dec 10, 2025	+14.4%
S&P 500, total return, 1 year		+17.3%
Against the S&P 500, since Dec 10, 2025	behind by 2.8 pts
Against the S&P 500, 1 year		behind by 11.6 pts
Below its all-time high	5.3%, high on Jul 24, 2026	6.6%, high on Feb 27, 2026

54.2%

CSIO in the S&P 500

25.8%

EFRA in the S&P 500

+11.6%

CSIO total return, since launch

+5.6%

EFRA total return, 1 year

CSIO · 6 months to Oct 9, 202646% of its weight is outside the S&P 500

54% of CSIO's weight is in S&P 500 companies and 46% is outside the index. Holdings as of Jun 30, 2026.

EFRA · 1 year to Oct 9, 202674% of its weight is outside the S&P 500

26% of EFRA's weight is in S&P 500 companies and 74% is outside the index. Holdings as of Oct 8, 2026.

ETFIQ Off-Index Score · EFRA scores higherHow much of it is not the index it is sold as an alternative to?

CSIO 63

EFRA 79.2

0.1, the lowest in this set92.3, the highest

A percentile among the 391 thematic ETFs with a holdings filing. All thematic ETFs ranked by it → How it is computed →

Performance, window by window

	Total return		vs the S&P 500		vs the Nasdaq-100
Window	CSIO	EFRA	CSIO	EFRA	CSIO	EFRA
3 months	−4.3%	−3.1%	−7.6 pts	−6.5 pts	−7.9 pts	−6.8 pts
6 months	−2.6%	−3.5%	−17.7 pts	−18.6 pts	−25.8 pts	−26.6 pts
1 year	not published	+5.6%	not published	−11.6 pts	not published	−18.0 pts
3 years	not published	+46.4%	not published	−39.4 pts	not published	−60.9 pts
Since launch CSIO Dec 2025 · EFRA Nov 2022	+11.6%	+59.5%	−2.8 pts	−61.6 pts	−8.7 pts	−135.8 pts

Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

CSIO

Cohen & Steers Infrastructure Opportunities Active ETF · Holds 29 stocks in infrastructure, 54% of its weight in S&P 500 companies

EFRA

iShares Environmental Infrastructure and Industrials ETF · Holds 79 stocks in infrastructure, 26% of its weight in S&P 500 companies

Issuer Cohen & Steers iShares

Theme Infrastructure Infrastructure

In the S&P 500 54.2% 25.8%

Active share vs the S&P 500 99.0% 99.8%

In the Nasdaq-100 6.8% 0.0%

Holdings 29 79

Top ten, share of the fund 51.9% 51.3%

Expense ratio 0.65% 0.47%

Fee for the differing part 0.66% 0.47%

Total return, 1 year +11.6% (since it first traded on Dec 10, 2025) +5.6%

vs the S&P 500 −2.8 pts −11.6 pts

vs the Nasdaq-100 −8.7 pts −18.0 pts

Below its high −5.3% −6.6%

Net assets, CSIO as of Jun 30, 2026 and EFRA as of Oct 8, 2026 $44m $5m

As of Oct 9, 2026. Source: ETFIQ.

CSIO in plain words

By weight, 54% of CSIO's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 52% of the fund across 29 positions, as filed for Jun 30, 2026. Since it first traded on Dec 10, 2025 the fund returned +11.6% with distributions reinvested against +14.4% for the S&P 500, so a holder was behind by 2.8 pts. It sits 5.3% below its all-time high of Jul 24, 2026.

EFRA in plain words

By weight, 26% of EFRA'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 51% of the fund across 79 positions, as published by its issuer for Oct 8, 2026. Over the year to Oct 9, 2026 the fund returned +5.6% with distributions reinvested against +17.3% for the S&P 500, so a holder was behind by 11.6 pts. It sits 6.6% below its all-time high of Feb 27, 2026.

Questions people ask

Which is more different from the S&P 500, CSIO or EFRA?: CSIO has 54% of its weight in S&P 500 names and EFRA has 26%, so EFRA differs more from the index.
Which is cheaper, CSIO or EFRA?: CSIO charges 0.65% a year and EFRA charges 0.47%, so EFRA is cheaper. Fees come from each fund's prospectus.

Other comparisons

CSIO vs IPAV CSIO vs GLIX CSIO vs NGIF CSIO vs RBLD EFRA vs GLIX EFRA vs NFRX EFRA vs IPAV EFRA vs GII

CSIO on its own →EFRA on its own →How every figure is computed →Standards and sources →

Where these figures came from

CSIO filings on SEC EDGAR ↗CSIO prospectus with the expense ratio (SEC) ↗Cohen & Steers website ↗EFRA filings on SEC EDGAR ↗EFRA prospectus with the expense ratio (SEC) ↗iShares page for EFRA ↗

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

How this is computed

It is a position in a set, not a rating, and neither end of it is a recommendation.

Every figure is an ETFIQ calculation with distributions reinvested.

Cite this page

ETFIQ, CSIO against EFRA, data as of Oct 9, 2026. https://etfiq.com/compare/themes/csio-vs-efra

Open data

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