IUSG vs PABU: Differences, Returns & Fees
IUSG and PABU hold 50% of their weight in the same names, and IUSG returned +15.9% over the year. Net assets on Oct 20, 2026: $33.6bn for iShares Core S&P U.S. Growth ETF and $2.5bn for iShares Paris-Aligned Climate Optimized MSCI USA ETF.
IUSG costs 0.06 points a year less; their one-year returns differ by 5.7 points; IUSG is 13.6 times larger.
| IUSG | PABU | |
|---|---|---|
| Expense ratio | 0.04% | 0.10% |
| Net assets | $33.6bn | $2.5bn |
| Total return, 1 year | +15.9% | +10.2% |
| What it tracks | S&P 900 Growth Index | MSCI USA Climate Paris Aligned Benchmark Extended Select Index |
| Holdings in common | 50% | |
| Top ten holdings, share of the fund | 57.4% | 48.9% |
| Below its high | 4.1%, high on Oct 6, 2026 | |
Holdings in common uses holdings dated Oct 19, 2026.
IUSG and PABU are built for the same job. How do they differ in cost, holdings and results?
- What each follows. IUSG follows S&P 900 Growth Index and PABU follows MSCI USA Climate Paris Aligned Benchmark Extended Select Index.
- Holdings in common. 50% of the weight is in the same securities (holdings dated Oct 19, 2026).
- One-year total return. Over 1 year to Oct 20, 2026 IUSG returned +15.9% and PABU +10.2% with distributions reinvested, a gap of 5.7 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, IUSG and PABU hold 50% of their money in the same securities at the same weight. Holdings dated Oct 19, 2026.
half
50% in common
On the same fields
IUSG and PABU on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.
About IUSG
IUSG tracks an index. Over the year to Oct 20, 2026 it returned +15.9% with distributions reinvested. The prospectus expense ratio is 0.04% a year. By its holdings published by its issuer for Oct 19, 2026, 95% of the fund by weight is stocks the S&P 500 also holds, across 402 positions, with the top ten at 57.4%. It sat 4.1% below its high of Oct 6, 2026 on Oct 20, 2026.
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, IUSG or PABU?
- In the year to Oct 20, 2026, with distributions reinvested, IUSG returned +15.9% and PABU +10.2%.
- Which is cheaper, IUSG or PABU?
- IUSG is cheaper, by 0.06 percentage points a year. That is about $6 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, IUSG against PABU, data as of Oct 20, 2026. https://etfiq.com/compare/any/iusg-vs-pabu
ETFIQ. (Oct 20, 2026). IUSG against PABU. Retrieved from https://etfiq.com/compare/any/iusg-vs-pabu
[IUSG against PABU (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/iusg-vs-pabu)
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