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BLDX vs IGF: which is really different?

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

IGF costs 0.23 points a year less; IGF is far larger, $10.3bn against $118m.

BLDXIGF
Expense ratio0.60%0.37%
Net assets, BLDX as of Jun 30, 2026 and IGF as of Oct 8, 2026$118m$10.3bn
Total return, 1 yearnot published+5.3%
What it tracksInfrastructureInfrastructure
Holdings in common3%
S&P 500, total return, since Feb 2, 2026+12.8%
S&P 500, total return, 1 year+17.3%
Against the S&P 500, since Feb 2, 2026behind by 13.4 pts
Against the S&P 500, 1 yearbehind by 11.9 pts
Below its all-time high9.7%, high on Apr 8, 20268.3%, high on Feb 27, 2026

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

36.0%
BLDX in the S&P 500
31.9%
IGF in the S&P 500
−0.6%
BLDX total return, since launch
+5.3%
IGF total return, 1 year
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.

IGF · 1 year to Oct 9, 202668% of its weight is outside the S&P 500
68% of its weight is outside the S&P 50032% of IGF's weight is in S&P 500 companies and 68% is outside the index. Holdings as of Oct 8, 2026.32%68%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 98% · top ten 38% of the fund · 78 holdings as published by its issuer for Oct 8, 2026 · Nasdaq-100: 7% in68% of its weight is outside the S&P 50032% of IGF's weight is in S&P 500 companies and 68% is outside the index. Holdings as of Oct 8, 2026.32%68%inoutside the S&P 500active share 98% · Nasdaq-100: 7% in

32% of IGF's weight is in S&P 500 companies and 68% is outside the index. Holdings as of Oct 8, 2026.

ETFIQ Off-Index Score · IGF 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, BLDX and IGF 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 BLDX IGF
National Grid plc 3.86% 2.23%
SSE plc 2.96% 1.14%
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%
Only in IGF
TRANSURBAN GROUP STAPLED UNITS 4.83%
AENA SME SA 4.73%
NEXTERA ENERGY 4.70%
IBERDROLA 4.14%
GRUPO AEROPORTUARIO DEL PACIFICO A 3.63%
ENBRIDGE 3.60%
AUCKLAND INTERNATIONAL AIRPORT 3.55%
WILLIAMS 3.08%

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
WindowBLDXIGFBLDXIGFBLDXIGF
3 months−5.3%−6.2%−8.6 pts−9.6 pts−8.9 pts−9.9 pts
6 months−6.8%−7.3%−22.0 pts−22.4 pts−30.0 pts−30.5 pts
1 yearnot published+5.3%not published−11.9 ptsnot published−18.2 pts
3 yearsnot published+62.1%not published−23.6 ptsnot published−45.1 pts
Since launch
BLDX Feb 2026 · IGF Dec 2007
−0.6%+129.4%−13.4 pts−508.6 pts−21.0 pts−1,460.7 pts

Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

BLDX
Impax Global Sustainable Infrastructure ETF · Holds 38 stocks in infrastructure, 36% of its weight in S&P 500 companies
IGF
iShares Global Infrastructure ETF · Holds 78 stocks in infrastructure, 32% of its weight in S&P 500 companies
Issuer Impax iShares
Theme Infrastructure Infrastructure
In the S&P 500 36.0% 31.9%
Active share vs the S&P 500 96.6% 98.3%
In the Nasdaq-100 3.3% 7.2%
Holdings 38 78
Top ten, share of the fund 39.6% 38.0%
Expense ratio 0.60% 0.37%
Fee for the differing part 0.62% 0.38%
Total return, 1 year −0.6% (since it first traded on Feb 2, 2026) +5.3%
vs the S&P 500 −13.4 pts −11.9 pts
vs the Nasdaq-100 −21.0 pts −18.2 pts
Below its high −9.7% −8.3%
Net assets, BLDX as of Jun 30, 2026 and IGF as of Oct 8, 2026 $118m $10.3bn

As of Oct 9, 2026. Source: ETFIQ.

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.

IGF in plain words

By weight, 32% of IGF'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 38% of the fund across 78 positions, as published by its issuer for Oct 8, 2026. Over the year to Oct 9, 2026 the fund returned +5.3% with distributions reinvested against +17.3% for the S&P 500, so a holder was behind by 11.9 pts. It sits 8.3% below its all-time high of Feb 27, 2026.

Questions people ask

Do BLDX and IGF 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, BLDX or IGF?
BLDX has 36% of its weight in S&P 500 names and IGF has 32%, so IGF differs more from the index.
Which is cheaper, BLDX or IGF?
BLDX charges 0.60% a year and IGF charges 0.37%, so IGF is cheaper. Fees come from each fund's prospectus.
Other comparisons
BLDX vs IFRABLDX vs PAVEBLDX vs NFRABLDX vs GIIIGF vs CSIOIGF vs EFRAIGF vs IPAVIGF vs NGIF
BLDX on its own →IGF on its own →How every figure is computed →Standards and sources →
Where these figures came from
BLDX filings on SEC EDGAR ↗BLDX prospectus with the expense ratio (SEC) ↗Impax website ↗IGF filings on SEC EDGAR ↗iShares page for IGF ↗

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

Open data

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