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BILT vs BLDX: which is really different?

BILT and BLDX hold 3% of their weight in the same names. iShares Infrastructure Active ETF and Impax Global Sustainable Infrastructure ETF.

Both cost 0.60% a year.

BILTBLDX
Expense ratio0.60%0.60%
Net assets, BILT as of Oct 8, 2026 and BLDX as of Jun 30, 2026$112m$118m
Total return, 1 year+8.5%not published
What it tracksInfrastructureInfrastructure
Holdings in common3%
S&P 500, total return, 1 year+17.3%
S&P 500, total return, since Feb 2, 2026+12.8%
Against the S&P 500, 1 yearbehind by 8.7 pts
Against the S&P 500, since Feb 2, 2026behind by 13.4 pts
Below its all-time high7.6%, high on Jul 24, 20269.7%, high on Apr 8, 2026

Holdings in common uses holdings dated Jun 30, 2026 and Oct 8, 2026.

46.8%
BILT in the S&P 500
36.0%
BLDX in the S&P 500
+8.5%
BILT total return, 1 year
−0.6%
BLDX 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.

BLDX · 6 months to Oct 9, 202664% of its weight is outside the S&P 500
64% of its weight is outside the S&P 50036% of BLDX's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Jun 30, 2026.36%64%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 97% · top ten 40% of the fund · 38 holdings as filed for Jun 30, 2026 · Nasdaq-100: 3% in64% of its weight is outside the S&P 50036% of BLDX's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Jun 30, 2026.36%64%inoutside the S&P 500active share 97% · Nasdaq-100: 3% in

36% of BLDX's weight is in S&P 500 companies and 64% is outside the index. Holdings as of Jun 30, 2026.

ETFIQ Off-Index Score · BILT 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 →

What they hold in common

By the books each fund has filed, BILT and BLDX hold 3% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Oct 8, 2026.

half

3% in common

Positions both hold, largest shared weight first
Holding BILT BLDX
NATIONAL GRID PLC 1.85% 3.86%
SSE PLC 1.21% 2.96%
Only in BILT
UNION PACIFIC 5.47%
AENA SME SA 5.33%
AMERICAN ELECTRIC POWER INC 4.90%
TC ENERGY 4.56%
XCEL ENERGY INC 4.39%
PPL CORP 3.58%
WILLIAMS 3.46%
SEMPRA 3.40%
Only in BLDX
Union Pacific Corp. 5.29%
American Water Works Co., Inc. 4.94%
Iberdrola SA 4.46%
Keppel DC REIT 3.93%
NextEra Energy, Inc. 3.53%
Digital Realty Trust, Inc. 3.22%
Deutsche Telekom AG 3.18%
Elia Group SA/NV 3.15%

3% of the two portfolios are the same securities at the same weight.

Performance, window by window

Total returnvs the S&P 500vs the Nasdaq-100
WindowBILTBLDXBILTBLDXBILTBLDX
3 months−6.4%−5.3%−9.8 pts−8.6 pts−10.1 pts−8.9 pts
6 months−5.7%−6.8%−20.9 pts−22.0 pts−28.9 pts−30.0 pts
1 year+8.5%not published−8.7 ptsnot published−15.1 ptsnot published
Since launch
BILT Jul 2025 · BLDX Feb 2026
+12.4%−0.6%−12.4 pts−13.4 pts−21.3 pts−21.0 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
BLDX
Impax Global Sustainable Infrastructure ETF · Holds 38 stocks in infrastructure, 36% of its weight in S&P 500 companies
Issuer iShares Impax
Theme Infrastructure Infrastructure
In the S&P 500 46.8% 36.0%
Active share vs the S&P 500 98.1% 96.6%
In the Nasdaq-100 10.6% 3.3%
Holdings 237 38
Top ten, share of the fund 41.8% 39.6%
Expense ratio 0.60% 0.60%
Fee for the differing part 0.61% 0.62%
Total return, 1 year +8.5% −0.6% (since it first traded on Feb 2, 2026)
vs the S&P 500 −8.7 pts −13.4 pts
vs the Nasdaq-100 −15.1 pts −21.0 pts
Below its high −7.6% −9.7%
Net assets, BILT as of Oct 8, 2026 and BLDX as of Jun 30, 2026 $112m $118m

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.

BLDX in plain words

By weight, 36% of BLDX's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 97%. The top ten holdings are 40% of the fund across 38 positions, as filed for Jun 30, 2026. Since it first traded on Feb 2, 2026 the fund returned −0.6% with distributions reinvested against +12.8% for the S&P 500, so a holder was behind by 13.4 pts. It sits 9.7% below its all-time high of Apr 8, 2026.

Questions people ask

Do BILT and BLDX hold the same stocks?
By their latest filings, 3% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, BILT or BLDX?
BILT has 47% of its weight in S&P 500 names and BLDX has 36%, so BILT differs more from the index.
Which is cheaper, BILT or BLDX?
BILT and BLDX both charge 0.60% a year, so neither is cheaper. Fees come from each fund's prospectus.
Other comparisons
BILT vs GLIXBILT vs BKGIBILT vs EFRABILT vs IPAVBLDX vs NFRXBLDX vs TOLZBLDX vs CSIOBLDX vs RIFR
BILT on its own →BLDX 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 ↗BLDX filings on SEC EDGAR ↗BLDX prospectus with the expense ratio (SEC) ↗Impax 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.

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

Every figure is an ETFIQ calculation with distributions reinvested.

Cite this page

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

Open data

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