IWY vs PABU: Differences, Returns & Fees

IWY and PABU hold 55% of their weight in the same names, and PABU returned +10.2% over the year. Net assets on Oct 20, 2026: $15.8bn for iShares Russell Top 200 Growth ETF and $2.5bn for iShares Paris-Aligned Climate Optimized MSCI USA ETF.

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Answers cite the figures on this page.

PABU costs 0.10 points a year less; their one-year returns differ by 5.5 points; IWY is 6.4 times larger.

IWY vs PABU: Differences, Returns & Fees
IWYPABU
Expense ratio0.20%0.10%
Net assets$15.8bn$2.5bn
Total return, 1 year+4.7%+10.2%
What it tracksRussell Top 200 Growth IndexMSCI USA Climate Paris Aligned Benchmark Extended Select Index
Holdings in common55%
Top ten holdings, share of the fund60.9%48.9%
Below its high5.2%, high on Oct 6, 2026

Holdings in common uses holdings dated Oct 19, 2026.

+4.7%
IWY total return, 1 year
+10.2%
PABU total return, 1 year
0.20%
IWY expense ratio
0.10%
PABU expense ratio

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Client brief · page 1 of 2Report BR-233F393FE4

IWY and PABU are built for the same job. How do they differ in cost, holdings and results?

  1. What each follows. IWY follows Russell Top 200 Growth Index and PABU follows MSCI USA Climate Paris Aligned Benchmark Extended Select Index.
  2. One-year total return. Over 1 year to Oct 20, 2026 IWY returned +4.7% and PABU +10.2% with distributions reinvested, a gap of 5.5 points.
  3. Cost. IWY charges 0.20% of assets a year and PABU 0.10%, a gap of 0.10 points.

Data as of Oct 20, 2026. The differences are picked by a fixed rule, in a fixed order; the PDF prints it. Page 2 has the returns, overlap, risks and sources.

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What they hold in common

By the books each fund has filed, IWY and PABU hold 55% of their money in the same securities at the same weight. Holdings dated Oct 19, 2026.

half

55% in common

Positions both hold, largest shared weight first
Holding IWY PABU
NVIDIA 15.02% 9.40%
APPLE 8.32% 7.68%
MICROSOFT 6.34% 8.08%
ALPHABET CLASS C 4.89% 3.86%
ELI LILLY 3.55% 3.46%
BROADCOM INC 5.08% 3.28%
TESLA INC 3.78% 3.28%
ADVANCED MICRO DEVICES 3.10% 3.78%
META PLATFORMS CLASS A 4.35% 2.53%
VISA CLASS A 2.51% 1.80%
MASTERCARD CLASS A 1.83% 1.77%
ALPHABET CLASS A 6.07% 1.74%
Only in IWY
MICRON TECHNOLOGY 3.54%
LAM RESEARCH 1.25%
CATERPILLAR INC 1.21%
APPLIED MATERIAL INC 1.20%
GE AEROSPACE 1.18%
GE VERNOVA 0.90%
CROWDSTRIKE HOLDINGS CLASS A 0.84%
HOME DEPOT 0.84%
Only in PABU
SNOWFLAKE 3.11%
INTERNATIONAL BUSINESS MACHINES 2.35%
SIMON PROPERTY GROUP REIT INC 1.98%
EQUINIX REIT 1.91%
PROLOGIS REIT 1.83%
DIGITAL REALTY TRUST REIT 1.79%
REALTY INCOME REIT 1.56%
AUTODESK 1.53%

Check overlap with more funds →

On the same fields

IWY
iShares Russell Top 200 Growth ETF
PABU
iShares Paris-Aligned Climate Optimized MSCI USA ETF
Where it sits Stock ETF Stock ETF
What it is Tracks an index Tracks an index
Total return, 1 year +4.7% +10.2%
Its benchmark over the same days +15.0% (IWV) +15.4% (PBUS)
Gap to its benchmark −10.4 pts vs IWV −5.1 pts vs PBUS
Expense ratio 0.20% 0.10%
Already in the S&P 500 98.8% 97.3%
Holdings 102 88
Net assets $15.8bn $2.5bn

IWY and PABU on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.

About IWY

IWY tracks an index. The prospectus expense ratio is 0.20% a year. By its holdings published by its issuer for Oct 19, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 102 positions, with the top ten at 60.9%. It sat 5.2% below its high of Oct 6, 2026 on Oct 20, 2026.

Over the year to Oct 20, 2026 it returned +4.7% with distributions reinvested, against +15.0% for its benchmark, the Russell 3000 Index.

About PABU

PABU tracks an index. Over the year to Oct 20, 2026 it returned +10.2% with distributions reinvested, against +15.4% for its benchmark, the MSCI USA Index. The prospectus expense ratio is 0.10% a year. By its holdings published by its issuer for Oct 19, 2026, 97% of the fund by weight is stocks the S&P 500 also holds, across 88 positions, with the top ten at 48.9%.

Questions people ask

Which returned more over the last year, IWY or PABU?
In the year to Oct 20, 2026, with distributions reinvested, IWY returned +4.7% and PABU +10.2%.
Which is cheaper, IWY or PABU?
PABU is cheaper, by 0.10 percentage points a year. That is about $10 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IWY and PABU overlap with the S&P 500?
By their latest filed holdings, 99% of IWY and 97% of PABU by weight is stocks the S&P 500 already holds.
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ETFIQ, IWY against PABU, data as of Oct 20, 2026. https://etfiq.com/compare/any/iwy-vs-pabu

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