IDNAvsARKGETF Comparison
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iShares Genomics Immunology and Healthcare ETF (IDNA) and ARK Genomic Revolution ETF (ARKG) belong to the same industry segment: BioTech & Genomics. Both ETFs have the same top 3 sector exposures: and Health Care. IDNA is less expensive with a Total Expense Ratio (TER) of 0.47%, versus 0.75% for ARKG. IDNA is up 12.73% year-to-date (YTD) with +$15M in YTD flows. ARKG performs better with 15.2% YTD performance, and -$85M in YTD flows. Run a side-by-side ETF comparison of IDNA and ARKG 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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IDNA vs ARKG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 06/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IDNA ARKG | -0.86%+12.31% | -1.11%+21.40% | +12.73%+15.20% | +40.58%+38.67% | +24.39%-1.67% | -38.03%-61.05% |
| Flows | IDNA ARKG | +$1M-$31M | +$11M-$71M | +$15M-$85M | +$9M-$92M | -$9M-$628M | +$14M-$2.63B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IDNA ARKG | +25.75%+46.69% | +23.78%+42.05% | +24.15%+43.23% | +27.94%+45.71% |
| Max drawdown | IDNA ARKG | -8.84%-10.51% | -10.60%-27.52% | -29.86%-51.98% | -68.19%-80.16% |
| Max drawdown duration | IDNA ARKG | 53d27d | 46d126d | 258d1058d | 1726d1808d |
Trading data
IDNA | ARKG | |
Last sale 6/12/2026 at 1:30 PM | $29.77 | $33.47 |
| Previous close 06/11/2026 | $29.52 | $33.65 |
| Consolidated volume 06/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of May 29, 2026
1-year trailing difference
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ARKG
is actively managed and doesn’t replicate an indexIDNA | ARKG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 6/12/2026 at 1:30 PM
Live
Closed
IDNA | ARKG | |
|---|---|---|
| Last price | $29.77 | $33.47 |
| 1D performance | +0.85% | -0.53% |
| AuM | $162.34 M | $1.26 B |
| E/R | 0.47% | 0.75% |
Characteristics
IDNA | ARKG | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Ark Investment |
| Benchmark | NYSE FactSet Global Genomics and Immuno Biopharma Index | - |
| N° of holdings | 40 | 27 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 11, 2019 | April 2, 2019 |
| ESG | No | No |
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Exposure
Countries
IDNA
USA
62.06%
France
9.25%
Other
28.69%
ARKG
USA
68.62%
Switzerland
8.97%
Other
22.41%
Sectors
IDNA
Health Care
89.66%
Other
10.34%
ARKG
Health Care
76.57%
Other
23.43%
Diversification
IDNA
Total weight of top 15 holdings out of 15
65.52%
ARKG
Total weight of top 15 holdings out of 15
60.37%
Top 15 holdings
Data as of April 30, 2026
IDNA
REVOLUTION MEDICINES INC
6.86%
MODERNA INC
6.28%
IPSEN PROMESSES
5.23%
TAKEDA PHARMACEUTICAL
4.49%
BAYER AG
4.36%
MERCK & CO INC
4.15%
GSK PLC
4.12%
BIONTECH SE ADR
4.07%
CH1499059983
3.99%
EXELIXIS
3.80%
TWIST BIOSCIENCE CORP
3.79%
REGENERON PHARMACEUTICALS
3.73%
SANOFI SA
3.58%
VERTEX PHARMACEUTICALS
3.56%
INCYTE
3.52%
ARKG
CRISPR THERAPEUTICS
8.97%
10X GENOMICS INC
5.66%
BEAM THERAPEUTICS
5.54%
ABSCI
4.73%
ILLUMINA
4.08%
NATERA
4.00%
PERSONALIS INC
3.61%
CAREDX INC/D
3.61%
RECURSION PHARMACEUTICALS
3.51%
INTELLIA THERAPEUTICS INC
3.40%
GUARDANT HEALTH INC
3.38%
VERACYTE INC/D
2.74%
ADAPTIVE BIOTECHNOLOGIES
2.44%
NURIX THERAPEUTICS
2.41%
COMPASS PATHWAYS ADR
2.29%
Frequently asked questions about IDNA and ARKG
How have the IDNA and ARKG ETFs performed in 2026?
As of June 11, 2026, IDNA is up 12.73% year-to-date (YTD), while ARKG has returned 15.2%. That puts ARKG better performer ahead so far this year.
Which ETF is attracting more investor money: IDNA or ARKG?
Year-to-date, the IDNA ETF saw +$15M in flows, compared to -$85M for ARKG.
Which ETF is more volatile: IDNA or ARKG?
Over the past year, IDNA had a volatility of 23.78%, while ARKG experienced 42.05%.
Which ETF is bigger: IDNA or ARKG?
As of June 11, 2026, IDNA holds $162.34 M in assets under management (AUM), while ARKG manages $1.26 B.
What sectors do the IDNA and ARKG ETFs invest in?
IDNA leans toward sectors like Health Care. Meanwhile, ARKG focuses on Health Care.
What are the top holdings of the IDNA ETF and ARKG ETF?
IDNA top holdings include REVOLUTION MEDICINES INC, MODERNA INC and IPSEN PROMESSES. ARKG holds in its top three: CRISPR THERAPEUTICS, 10X GENOMICS INC and BEAM THERAPEUTICS.
Which ETF is more diversified: IDNA or ARKG?
IDNA holds 50 securities with 65.52% of its assets in the top 15. ARKG has 27 securities and a top 15 weight of 60.37%.
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