# iShares Genomics Immunology and Healthcare ETF (IDNA) — Holdings

IDNA · NYSE · Fund

Canonical page: https://www.lighthorse.io/tickers/idna/holdings

## Top holdings (as of Oct 15, 2026)

The 10 largest positions make up 49.8% of the fund. Want full holdings data source? [Register at AInvest](https://www.ainvest.com/etfs/NYSE-IDNA/holdings/).

| Ticker | Weight |
| --- | --- |
| MRNA | 13.57% |
| TWST | 6.09% |
| IOVA | 4.92% |
| GMAB | 4.27% |
| RVMD | 3.69% |
| 4502 | 3.51% |
| REGN | 3.49% |
| MRK | 3.47% |
| BAYN | 3.43% |
| IBRX | 3.33% |

## Frequently Asked Questions

### What are the top holdings of IDNA?

As of Oct 15, 2026, the largest positions in iShares Genomics Immunology and Healthcare ETF are MRNA (13.6%), TWST (6.1%), IOVA (4.9%), GMAB (4.3%), RVMD (3.7%).

### How concentrated is IDNA?

The 10 largest positions make up 49.8% of iShares Genomics Immunology and Healthcare ETF, as reported on Oct 15, 2026.

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Fund holdings are reported periodically and are a snapshot of a past date, not a live position list — what the fund holds today may differ. Weights cover only the largest positions shown, not the whole portfolio.

This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.

Data provided by [AInvest](https://www.ainvest.com).