# Genomics ETFs: 4 funds, largest first

> ETFIQ covers 4 genomics ETFs. The largest are ARKG ($2.1bn), IDNA ($321m) and GNOM ($104m); fees run 0.35% to 0.75%, as of Oct 12 to 26, 2026.

Data as of Oct 27, 2026. Rebuilt every trading night.

Data as of Oct 27, 2026 .

## Genomics ETFs: what each one holds

See every genomics ETF by what it holds, not by its name. Funds that hold the gene sequencing, gene editing and precision medicine companies. Broader drug developers are on the biotech page. 4 funds, largest first. Updated Oct 27, 2026. The typical fund carries 22% of its weight in S&P 500 stocks, the 33rd most of the 53 themes with holdings on file.

4 US listed genomics ETFs

$2.1bn The largest, ARKG

0.35% The cheapest, GNMX

+66.8% Best one year, IDNA

### The short answers

Least like the S&P 500 ARKG , ARK Genomic Revolution ETF, 4.1% of its weight in S&P 500 companies. Closest pair GNMX and GNOM , 42% of their weight in the same companies.

### What these funds actually own

Between them the 4 funds' ten largest holdings name 31 companies, of which 8 appear in more than one. TWIST BIOSCIENCE CORP is among the ten largest of 3 of them, at an average of 5.6% of the fund.

| Company | Among the ten largest of | Average weight where it is | Largest, and in which fund |
| --- | --- | --- | --- |
| TWIST BIOSCIENCE CORP TWST | 3 of 4 | 5.6% | 8.3% in ARKG |
| MODERNA MRNA | 2 of 4 | 10.5% | 12.0% in IDNA |
| 10X GENOMICS INC-CLASS A TXG | 2 of 4 | 6.1% | 8.8% in ARKG |
| ILLUMINA INC ILMN | 2 of 4 | 4.9% | 5.0% in ARKG |
| GUARDANT HEALTH INC GH | 2 of 4 | 4.4% | 5.2% in ARKG |
| GENMAB GMAB | 2 of 4 | 4.4% | 5.2% in IDNA |
| IOVANCE BIOTHERAPEUTICS INC IOVA | 2 of 4 | 4.0% | 4.8% in IDNA |
| REVOLUTION MEDICINES RVMD | 2 of 4 | 3.3% | 3.5% in IDNA |
| Thermo Fisher Scientific Inc TMO | 1 of 4 | 8.7% | 8.7% in GNMX |
| TEMPUS AI INC-CL A TEM | 1 of 4 | 8.2% | 8.2% in ARKG |
| Vertex Pharmaceuticals Inc VRTX | 1 of 4 | 5.8% | 5.8% in GNMX |
| GUARDANT HEALTH, INC. | 1 of 4 | 5.6% | 5.6% in GNOM |
| CRISPR THERAPEUTICS AG CRSP | 1 of 4 | 5.3% | 5.3% in ARKG |
| NATERA INC NTRA | 1 of 4 | 4.9% | 4.9% in ARKG |
| ABSCI CORP ABSI | 1 of 4 | 4.9% | 4.9% in ARKG |

The 15 most widely held of 31. Each row counts the ten largest holdings of each fund, so a fund missing from a row may still hold that company lower down. Weights are of the funds that name it, not of the theme.

### The 4 largest genomics ETFs

ETFIQ covers 4 genomics ETFs. The largest are ARKG ( $2.1bn ), IDNA ( $321m ) and GNOM ( $104m ); fees run 0.35% to 0.75% , as of Oct 12 to 26, 2026 .

- ARKG ARK Genomic Revolution ETF $2.1bn 0.75%

- IDNA iShares Genomics Immunology and Healthcare ETF $321m 0.47%

- GNOM Global X Genomics & Biotechnology ETF $104m 0.50%

- GNMX Corgi Genomics & Precision Medicine ETF $1.3m 0.35%

| Ticker | Fund | Issuer | Net assets | In the S&P 500 | Active share | Total return 1Y | vs its benchmark 1Y | Fee |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| ARKG | ARK Genomic Revolution ETF | ARK | $2.1bn | 4.1% | 98.5% | +65.8% | not measured | 0.75% |
| IDNA | iShares Genomics Immunology and Healthcare ETF | iShares | $321m | 25.5% | 99.1% | +66.8% | not measured | 0.47% |
| GNOM | Global X Genomics & Biotechnology ETF | Global X | $104m | 17.9% | 97.6% | +56.6% | not measured | 0.50% |
| GNMX | Corgi Genomics & Precision Medicine ETF | Corgi | $1.3m | 28.2% | 99.4% | first traded 174 days ago | · | 0.35% |

### How much of each pair is the same fund

The closest pair is GNMX and GNOM , which hold 42% of their weight in the same companies. The furthest apart is ARKG and IDNA at 9%. The middle pair of the 6 is 33%.

| | ARKG | IDNA | GNOM | GNMX |
| --- | --- | --- | --- | --- |
| ARKG | · | 9% | 40% | 34% |
| IDNA | 9% | · | 20% | 33% |
| GNOM | 40% | 20% | · | 42% |
| GNMX | 34% | 33% | 42% | · |

Weight overlap adds the smaller of the two weights for every company both funds hold. Funds with a cut-short book are left out, not compared short.

### What each fund holds alone

| Fund | Largest holding it alone has | Weight | All of its own names |
| --- | --- | --- | --- |
| ARKG | COMPASS PATHWAYS PLC CMPS | 2.7% | 12.7% |
| IDNA | TAKEDA PHARMACEUTICAL | 3.8% | 48.3% |
| GNOM | Legend Biotech Corp | 4.0% | 23.2% |
| GNMX | Thermo Fisher Scientific Inc TMO | 8.7% | 22.4% |

### Questions people ask

How many genomics ETFs are there? ETFIQ covers 4 US listed genomics ETFs as of Oct 27, 2026. That is every one it can measure from the fund’s own published holdings. What is the largest genomics ETF? ARKG , ARK Genomic Revolution ETF, at $2.1bn in net assets as of Oct 26, 2026, the largest of the 4 genomics ETFs with a published size. What is the cheapest genomics ETF? GNMX , Corgi Genomics & Precision Medicine ETF, at 0.35% a year by its prospectus filed May 14, 2026, the lowest fee of the 4 genomics ETFs that publish one. Which genomics ETF has performed best over the past year? IDNA , iShares Genomics Immunology and Healthcare ETF, at +66.8% total return over the year to Oct 27, 2026, the highest of the 3 genomics ETFs with a full year of trading behind them. Past returns do not predict future ones. What do genomics ETFs hold? Funds that hold the gene sequencing, gene editing and precision medicine companies. Broader drug developers are on the biotech page. Between them the 4 genomics ETFs ETFIQ can read name 31 companies in their ten largest holdings, by holdings dated May 31, 2026 to Oct 27, 2026, most widely TWIST BIOSCIENCE CORP, which is among the ten largest of 3 of them. Do genomics ETFs hold the same companies? It depends which two. Across the 6 pairs of the 4 genomics ETFs with a full published book, by holdings dated May 31, 2026 to Oct 27, 2026, GNMX and GNOM hold 42% of their weight in the same companies, ARKG and IDNA hold 9%, and the middle pair holds 33%. Two funds sold on one theme are not the same fund.

### What the issuers say about this theme

The issuers behind these genomics funds publish their own work on this theme. These are their pages and words, not ETFIQ’s. A fund company writing about a theme it sells is making a case.

| Issuer | What they publish | Kind |
| --- | --- | --- |
| ARK | ARK Invest articles | Their research index |
| iShares | iShares Portfolio Insights | Their research index |
| Global X | Global X Insights, including The Next Big Theme | Their research index |

### Where to next

### Sources

Links are sources, not endorsements.

ETFIQ is an independent publisher and makes no recommendations. Standards and sources

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Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.
Cite: ETFIQ, Genomics ETFs: what each one holds, data as of Oct 27, 2026. https://etfiq.com/themes/genomics
Licence: https://etfiq.com/license/ Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.
HTML: https://etfiq.com/themes/genomics