Data as of Oct 28, 2026.
IBB vs MAGS: Differences, Returns & Fees
Over the year to Oct 28, 2026, IBB returned +37.5% to MAGS's +5.8%, and MAGS charges 0.30% to IBB's 0.44%.
askIQ about this page
askIQ about IBB and MAGS
Net assets: $11.0bn on Oct 27, 2026 for iShares Biotechnology ETF, and $5.5bn on Oct 28, 2026 for Roundhill Magnificent Seven ETF.
Pair scorecard
MAGS costs 0.14 points a year less; their one-year returns differ by 31.7 points; IBB is 2.0 times larger.
| Measure | IBB | MAGS |
|---|---|---|
| Return | ||
| Total return, 1 year | +37.5% | +5.8% |
| Drawdown | ||
| Below its high | 4.1%, high on Oct 13, 2026 | |
| Benchmark | ||
| What it tracks | Biotech | No index, actively managed |
| Cost and size | ||
| Expense ratio | 0.44% | 0.30% |
| Net assets, as of Oct 27, 2026 | $11.0bn | $5.5bn |
| Active share vs the S&P 500 | 99% | |
| Holdings | ||
| Holdings in common | 0% | |
| Top ten holdings, share of the fund | 50% | 29.3% |
Holdings in common uses holdings dated Jun 30, 2026 and Oct 27, 2026. Method
What they share
By the books each fund has filed, IBB and MAGS hold 0% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
IBB and MAGS on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IBB
By weight, 40% of IBB's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 50% of the fund across 245 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +37.5% with distributions reinvested.
MAGS
MAGS is actively managed and tracks no index. Over the year to Oct 28, 2026 it returned +5.8% 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%. It sat 4.1% below its high of Oct 13, 2026 on Oct 28, 2026.
Questions people ask
- Are IBB and MAGS in the same category?
- IBB is a thematic ETF and MAGS is a stock ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
- Which returned more over the last year, IBB or MAGS?
- In the year to Oct 28, 2026, with distributions reinvested, IBB returned +37.5% and MAGS +5.8%.
- Which is cheaper, IBB or MAGS?
- MAGS is cheaper, by 0.14 percentage points a year. That is about $14 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. 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.
Cite this pageCitation, APA and Markdown
ETFIQ, IBB against MAGS, data as of Oct 28, 2026. https://etfiq.com/compare/any/ibb-vs-mags
ETFIQ. (Oct 28, 2026). IBB against MAGS. Retrieved from https://etfiq.com/compare/any/ibb-vs-mags
[IBB against MAGS (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/ibb-vs-mags)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.