IUSG vs MAGS: Differences, Returns & Fees
IUSG and MAGS hold 21% 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 $5.7bn for Roundhill Magnificent Seven ETF.
IUSG costs 0.26 points a year less; their one-year returns differ by 3.7 points; IUSG is 5.9 times larger.
| IUSG | MAGS | |
|---|---|---|
| Expense ratio | 0.04% | 0.30% |
| Net assets | $33.6bn | $5.7bn |
| Total return, 1 year | +15.9% | +12.2% |
| What it tracks | S&P 900 Growth Index | No index, actively managed |
| Holdings in common | 21% | |
| Top ten holdings, share of the fund | 57.4% | 29.3% |
| Below its high | 4.1%, high on Oct 6, 2026 | |
Holdings in common uses holdings dated Jun 30, 2026 and Oct 19, 2026.
What they hold in common
By the books each fund has filed, IUSG and MAGS hold 21% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Oct 19, 2026.
half
21% in common
On the same fields
IUSG and MAGS 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 MAGS
MAGS is actively managed and tracks no index. Over the year to Oct 20, 2026 it returned +12.2% with distributions reinvested. The prospectus expense ratio is 0.30% a year. By its holdings filed for Jun 30, 2026, 22% of the fund by weight is stocks the S&P 500 also holds, across 8 positions, with the top ten at 29.3%.
Questions people ask
- Which returned more over the last year, IUSG or MAGS?
- In the year to Oct 20, 2026, with distributions reinvested, IUSG returned +15.9% and MAGS +12.2%.
- Which is cheaper, IUSG or MAGS?
- IUSG is cheaper, by 0.26 percentage points a year. That is about $26 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 MAGS, data as of Oct 20, 2026. https://etfiq.com/compare/any/iusg-vs-mags
ETFIQ. (Oct 20, 2026). IUSG against MAGS. Retrieved from https://etfiq.com/compare/any/iusg-vs-mags
[IUSG against MAGS (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/iusg-vs-mags)
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