IUSG vs VUG: Differences, Returns & Fees
IUSG and VUG hold 76% of their weight in the same names, and IUSG returned +15.9% over the year. Net assets: $33.6bn on Oct 20, 2026 for iShares Core S&P U.S. Growth ETF, and $232.9bn on Sep 30, 2026 for Vanguard Morningstar Growth ETF.
VUG costs 0.01 points a year less; their one-year returns differ by 5.7 points; VUG is 6.8 times larger.
| IUSG | VUG | |
|---|---|---|
| Expense ratio | 0.04% | 0.03% |
| Net assets, as of Sep 30, 2026 | $34.0bn | $232.9bn |
| Total return, 1 year | +15.9% | +10.2% |
| What it tracks | S&P 900 Growth Index | Morningstar US Large Cap Growth Index |
| Holdings in common | 76% | |
| Top ten holdings, share of the fund | 57.4% | 63.1% |
| Below its high | 4.1%, high on Oct 6, 2026 | 4.3%, high on Oct 6, 2026 |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 19, 2026.
IUSG and VUG 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 VUG follows Morningstar US Large Cap Growth Index.
- One-year total return. Over 1 year to Oct 20, 2026 IUSG returned +15.9% and VUG +10.2% with distributions reinvested, a gap of 5.7 points.
- Size. IUSG has $34.0bn in net assets and VUG $232.9bn (net assets, as of Sep 30, 2026); VUG is 6.9 times larger.
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 VUG hold 76% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 19, 2026.
half
76% in common
On the same fields
IUSG and VUG 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 VUG
VUG tracks an index of US growth. Over the year to Oct 20, 2026 it returned +10.2% with distributions reinvested. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 97% of the fund by weight is stocks the S&P 500 also holds, across 137 positions, with the top ten at 63.1%. It sat 4.3% below its high of Oct 6, 2026 on Oct 20, 2026.
Questions people ask
- Which returned more over the last year, IUSG or VUG?
- In the year to Oct 20, 2026, with distributions reinvested, IUSG returned +15.9% and VUG +10.2%.
- Which is cheaper, IUSG or VUG?
- VUG is cheaper, by 0.01 percentage points a year. That is about $1 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 VUG, data as of Oct 20, 2026. https://etfiq.com/compare/any/iusg-vs-vug
ETFIQ. (Oct 20, 2026). IUSG against VUG. Retrieved from https://etfiq.com/compare/any/iusg-vs-vug
[IUSG against VUG (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/iusg-vs-vug)
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