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BILT vs CSIO: which is really different?

CSIO holds 54.2% of its weight in S&P 500 companies and BILT 46.8%. iShares Infrastructure Active ETF and Cohen & Steers Infrastructure Opportunities Active ETF.

BILT costs 0.05 points a year less; BILT is 2.5 times larger.

BILTCSIO
Expense ratio0.60%0.65%
Net assets, BILT as of Oct 8, 2026 and CSIO as of Jun 30, 2026$112m$44m
Total return, 1 year+8.5%not published
What it tracksInfrastructureInfrastructure
Holdings in commonnot published
S&P 500, total return, 1 year+17.3%
S&P 500, total return, since Dec 10, 2025+14.4%
Against the S&P 500, 1 yearbehind by 8.7 pts
Against the S&P 500, since Dec 10, 2025behind by 2.8 pts
Below its all-time high7.6%, high on Jul 24, 20265.3%, high on Jul 24, 2026
46.8%
BILT in the S&P 500
54.2%
CSIO in the S&P 500
+8.5%
BILT total return, 1 year
+11.6%
CSIO total return, since launch
BILT · 1 year to Oct 9, 202653% of its weight is outside the S&P 500
53% of its weight is outside the S&P 50047% of BILT's weight is in S&P 500 companies and 53% is outside the index. Holdings as of Oct 8, 2026.47%53%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 98% · top ten 42% of the fund · 237 holdings as published by its issuer for Oct 8, 2026 · Nasdaq-100: 11% in53% of its weight is outside the S&P 50047% of BILT's weight is in S&P 500 companies and 53% is outside the index. Holdings as of Oct 8, 2026.47%53%in the S&P 500outside the S&P 500active share 98% · Nasdaq-100: 11% in

47% of BILT's weight is in S&P 500 companies and 53% is outside the index. Holdings as of Oct 8, 2026.

CSIO · 6 months to Oct 9, 202646% of its weight is outside the S&P 500
46% of its weight is outside the S&P 50054% of CSIO's weight is in S&P 500 companies and 46% is outside the index. Holdings as of Jun 30, 2026.54%46%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 99% · top ten 52% of the fund · 29 holdings as filed for Jun 30, 2026 · Nasdaq-100: 7% in46% of its weight is outside the S&P 50054% of CSIO's weight is in S&P 500 companies and 46% is outside the index. Holdings as of Jun 30, 2026.54%46%in the S&P 500outsideactive share 99% · Nasdaq-100: 7% in

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

ETFIQ Off-Index Score · CSIO scores higherHow much of it is not the index it is sold as an alternative to?
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 returnvs the S&P 500vs the Nasdaq-100
WindowBILTCSIOBILTCSIOBILTCSIO
3 months−6.4%−4.3%−9.8 pts−7.6 pts−10.1 pts−7.9 pts
6 months−5.7%−2.6%−20.9 pts−17.7 pts−28.9 pts−25.8 pts
1 year+8.5%not published−8.7 ptsnot published−15.1 ptsnot published
Since launch
BILT Jul 2025 · CSIO Dec 2025
+12.4%+11.6%−12.4 pts−2.8 pts−21.3 pts−8.7 pts

Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

BILT
iShares Infrastructure Active ETF · Holds 237 stocks in infrastructure, 47% of its weight in S&P 500 companies
CSIO
Cohen & Steers Infrastructure Opportunities Active ETF · Holds 29 stocks in infrastructure, 54% of its weight in S&P 500 companies
Issuer iShares Cohen & Steers
Theme Infrastructure Infrastructure
In the S&P 500 46.8% 54.2%
Active share vs the S&P 500 98.1% 99.0%
In the Nasdaq-100 10.6% 6.8%
Holdings 237 29
Top ten, share of the fund 41.8% 51.9%
Expense ratio 0.60% 0.65%
Fee for the differing part 0.61% 0.66%
Total return, 1 year +8.5% +11.6% (since it first traded on Dec 10, 2025)
vs the S&P 500 −8.7 pts −2.8 pts
vs the Nasdaq-100 −15.1 pts −8.7 pts
Below its high −7.6% −5.3%
Net assets, BILT as of Oct 8, 2026 and CSIO as of Jun 30, 2026 $112m $44m

As of Oct 9, 2026. Source: ETFIQ.

BILT in plain words

By weight, 47% of BILT's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 42% of the fund across 237 positions, as published by its issuer for Oct 8, 2026. Over the year to Oct 9, 2026 the fund returned +8.5% with distributions reinvested against +17.3% for the S&P 500, so a holder was behind by 8.7 pts. It sits 7.6% below its all-time high of Jul 24, 2026.

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.

Questions people ask

Which is more different from the S&P 500, BILT or CSIO?
BILT has 47% of its weight in S&P 500 names and CSIO has 54%, so CSIO differs more from the index.
Which is cheaper, BILT or CSIO?
BILT charges 0.60% a year and CSIO charges 0.65%, so BILT is cheaper. Fees come from each fund's prospectus.
Other comparisons
BILT vs RIFRBILT vs RBLDBILT vs GLIXBILT vs BLDXCSIO vs NFRXCSIO vs TOLZCSIO vs RIFRCSIO vs RBLD
BILT on its own →CSIO on its own →How every figure is computed →Standards and sources →
Where these figures came from
BILT filings on SEC EDGAR ↗iShares page for BILT ↗CSIO filings on SEC EDGAR ↗CSIO prospectus with the expense ratio (SEC) ↗Cohen & Steers website ↗

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

Open data

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