GNMXvsIBBETF Comparison
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Corgi Genomics & Precision Medicine ETF (GNMX) belongs to the BioTech & Genomics segment. iShares Biotechnology ETF (IBB) is part of the US Health Care segment. Both ETFs have the same top 3 sector exposures: and Healthcare. GNMX is less expensive with a Total Expense Ratio (TER) of 0.35%, versus 0.44% for IBB. Run a side-by-side ETF comparison of GNMX and IBB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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GNMX vs IBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/24/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | GNMX IBB | +1.85%+3.70% | n/a+10.81% | n/a+11.58% | n/a+39.33% | n/a+46.64% | n/a+16.63% |
| Flows | GNMX IBB | -+$526M | -+$314M | -+$89M | -+$1.44B | --$939M | --$1.82B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | GNMX IBB | n/a+22.62% | n/a+20.32% | n/a+20.40% | n/a+22.33% |
| Max drawdown | GNMX IBB | n/a-5.94% | n/a-9.61% | n/a-24.82% | n/a-39.75% |
| Max drawdown duration | GNMX IBB | n/a17d | n/a151d | n/a377d | n/a1611d |
Trading data
GNMX | IBB | |
Last sale 7/27/2026 at 1:30 PM | $188.33 | |
| Previous close 07/24/2026 | $188.14 | |
| Consolidated volume 07/24/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of June 30, 2026
1-year trailing difference
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GNMX
is actively managed and doesn’t replicate an indexGNMX | IBB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 7/27/2026 at 1:30 PM
Live
Closed
GNMX | IBB | |
|---|---|---|
| Last price | – | $188.33 |
| 1D performance | – | +0.10% |
| AuM | $1.64 M | $9.34 B |
| E/R | 0.35% | 0.44% |
Characteristics
GNMX | IBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Corgi Funds | iShares |
| Benchmark | - | ICE Biotechnology Index |
| N° of holdings | 57 | 242 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 6, 2026 | February 5, 2001 |
| ESG | No | No |
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Exposure
Countries
GNMX
USA
89.37%
Other
10.63%
IBB
USA
86.15%
Other
13.85%
Sectors
GNMX
Healthcare
98.21%
Other
1.79%
IBB
Healthcare
99.89%
Other
0.11%
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Diversification
GNMX
Total weight of top 15 holdings out of 15
53.1%
IBB
Total weight of top 15 holdings out of 15
53.71%
Top 15 holdings
Data as of June 30, 2026
GNMX
Thermo Fisher Scientific, Inc.
7.80%
Vertex Pharmaceuticals, Inc.
6.73%
Guardant Health, Inc.
3.85%
Illumina, Inc.
3.84%
Revolution Medicines, Inc.
3.83%
Alnylam Pharmaceuticals, Inc.
3.77%
Moderna, Inc.
3.71%
Incyte Corp.
3.09%
Genmab A/S
2.54%
Bio-Techne Corp.
2.50%
Ionis Pharmaceuticals, Inc.
2.49%
Krystal Biotech, Inc.
2.43%
BioMarin Pharmaceutical, Inc.
2.33%
Arrowhead Pharmaceuticals, Inc.
2.12%
uniQure NV
2.07%
IBB
Vertex Pharmaceuticals, Inc.
8.07%
Amgen, Inc.
7.82%
Gilead Sciences, Inc.
6.83%
Regeneron Pharmaceuticals, Inc.
4.90%
argenx SE
3.75%
Alnylam Pharmaceuticals, Inc.
3.12%
Natera, Inc.
2.89%
Revolution Medicines, Inc.
2.78%
Biogen, Inc.
2.46%
Illumina, Inc.
2.07%
Moderna, Inc.
1.98%
Insmed, Inc.
1.78%
BeOne Medicines Ltd.
1.77%
Incyte Corp.
1.75%
United Therapeutics Corp.
1.73%
Frequently asked questions about GNMX and IBB
Which ETF is bigger: GNMX or IBB?
As of July 24, 2026, GNMX holds $1.64 M in assets under management (AUM), while IBB manages $9.34 B.
What sectors do the GNMX and IBB ETFs invest in?
GNMX leans toward sectors like Healthcare. Meanwhile, IBB focuses on Healthcare.
What are the top holdings of the GNMX ETF and IBB ETF?
GNMX top holdings include Thermo Fisher Scientific, Inc., Vertex Pharmaceuticals, Inc. and Guardant Health, Inc.. IBB holds in its top three: Vertex Pharmaceuticals, Inc., Amgen, Inc. and Gilead Sciences, Inc..
Which ETF is more diversified: GNMX or IBB?
GNMX holds 57 securities with 53.1% of its assets in the top 15. IBB has 242 securities and a top 15 weight of 53.71%.
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Latest news about GNMX & IBB
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July 21, 2022
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