Do BBH and IDNA hold the same stocks?

By their latest filings, 21% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, BBH or IDNA?

BBH has 64% of its weight in S&P 500 names and IDNA has 27%, so IDNA differs more from the index.

Which is cheaper, BBH or IDNA?

BBH charges 0.35% a year and IDNA charges 0.47%, so BBH is cheaper. Fees come from each fund's prospectus.

Data as of Nov 4, 2026.

Thematic ETFs

BBH vs IDNA: Holdings Overlap & Returns

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Over the year to Nov 4, 2026, BBH returned +47.2% to IDNA's +81.1%; 21% of their weight is in the same names.

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Net assets on Nov 3, 2026: $525m for VanEck Biotech ETF and $340m for iShares Genomics Immunology and Healthcare ETF.

BBH on its own →IDNA on its own →

At a glance

64.4%

BBH in the S&P 500

27.4%

IDNA in the S&P 500

+47.2%

BBH total return, 1 year

+81.1%

IDNA total return, 1 year

BBH · 1 year to Nov 4, 2026 36% of its weight is outside the S&P 500

64% of BBH's weight is in S&P 500 companies and 36% is outside the index. Holdings as of Nov 2, 2026.

IDNA · 1 year to Nov 4, 2026 73% of its weight is outside the S&P 500

27% of IDNA's weight is in S&P 500 companies and 73% is outside the index. Holdings as of Nov 3, 2026.

Pair scorecard

BBH costs 0.12 points a year less; their one-year returns differ by 33.9 points; BBH is 1.5 times larger.

BBH vs IDNA: Holdings Overlap & Returns
Measure	BBH	IDNA
Return
Measure	BBH	IDNA
Total return, 1 year	+47.2%	+81.1%
Drawdown
Measure	BBH	IDNA
Below its all-time high		16.5%, high on Sep 2, 2021
Benchmark
Measure	BBH	IDNA
What it tracks	Biotech	Genomics and gene editing
Cost and size
Measure	BBH	IDNA
Expense ratio	0.35%	0.47%
Net assets, as of Nov 3, 2026	$525m	$340m
Holdings
Measure	BBH	IDNA
Holdings in common	21%

Method

Risk and return

Jun 21, 2019 to Oct 30, 2026 · 384 weekly returns

BBH IDNA

Return

Total return edge BBH +107.8% +69.5%

Annualized edge BBH +10.4% +7.4%

Price return edge BBH +101.5% +59.6%

Risk

Volatility edge BBH 22.2% 30.1%

Max drawdown edge BBH −37.7% −68.1%

Risk-adjusted

Sharpe edge BBH 0.43 0.29

Sortino edge BBH 0.64 0.44

Calmar edge BBH 0.28 0.11

Reading

From Jun 2019 to Oct 2026, BBH returned more: +107.8% to +69.5%. BBH swung less: 22.2% to 30.1%. BBH fell less at its worst: −37.7% to −68.1%.

Full scorecard

9 measures, with how each is measured Open ↓

Risk and return: BBH vs IDNA: Holdings Overlap & Returns
Measure	BBH	IDNA	Edge	How it is measured
Return
Total return	+107.8%	+69.5%	BBH	Price change plus distributions, reinvested.
Annualized	+10.4%	+7.4%	BBH	Total return as a yearly rate.
Price return	+101.5%	+59.6%	BBH	Price change alone, distributions left out.
Risk
Volatility	22.2%	30.1%	BBH	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	14.9%	20.2%	BBH	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−37.7%	−68.1%	BBH	Deepest fall from a high to the low after it.
Risk-adjusted
Sharpe	0.43	0.29	BBH	Return above Treasury bills per unit of volatility.
Sortino	0.64	0.44	BBH	Return above Treasury bills per unit of downside deviation.
Calmar	0.28	0.11	BBH	Annualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 384 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

21%

By the books each fund has filed, BBH and IDNA hold 21% of their money in the same securities at the same weight. Holdings dated Nov 3, 2026.

50%

0 half 100%

half

21% in common

Positions both hold · largest shared weight first BBH IDNA

Moderna Inc 6.88% 13.33%

Regeneron Pharmaceuticals Inc 7.99% 4.24%

Revolution Medicines Inc 3.82% 3.60%

Vertex Pharmaceuticals Inc 7.98% 3.29%

Incyte Corp 2.07% 3.18%

Biontech Se 1.34% 2.73%

Only in one fund ↓

Only in BBH

Amgen Inc 16.53%

Gilead Sciences Inc 14.17%

Natera Inc 4.44%

Iqvia Holdings Inc 4.18%

Argenx Se 4.13%

Illumina Inc 3.37%

Biogen Inc 2.88%

Guardant Health Inc 2.83%

Only in IDNA

GENMAB 6.26%

TWIST BIOSCIENCE 5.61%

BAYER AG 3.85%

EXELIXIS INC 3.80%

TAKEDA PHARMACEUTICAL 3.77%

CARIS LIFE SCIENCES 3.50%

MERCK & CO INC 3.32%

ROCHE PS PAR AG 3.20%

Check overlap with more funds →

Window by window

Window by window: BBH vs IDNA: Holdings Overlap & Returns
	Total return
Window	BBH	IDNA
3 months	+24.3%	+32.4%
6 months	+38.3%	+45.6%
1 year	+47.2%	+81.1%
3 years	+75.4%	+134.8%
Since launchNot the same days: BBH Dec 2011 · IDNA Jun 2019	+680.5%	+88.1%

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Side by side

BBH VanEck Biotech ETF · Holds 25 stocks in biotech, 64% of its weight in S&P 500 companies IDNA iShares Genomics Immunology and Healthcare ETF · Holds 52 stocks in genomics and gene editing, 27% of its weight in S&P 500 companies

Issuer VanEck iShares

Theme Biotech Genomics and gene editing

In the S&P 500 64.4% 27.4%

Active share vs the S&P 500 99.0% 99.1%

In the Nasdaq-100 49.1% 7.5%

Holdings 25 52

Top ten, share of the fund 73.5% 51.3%

Expense ratio 0.35% 0.47%

Fee for the differing part 0.35% 0.47%

Total return, 1 year +47.2% +81.1%

vs its benchmark not measured not measured

Below its high 0.0% −16.5%

Net assets, as of Nov 3, 2026 $525m $340m

As of Nov 4, 2026. Source: ETFIQ.

21% of the two portfolios are the same securities at the same weight.

Client brief:

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About each fund

BBH

By weight, 64% of BBH'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 74% of the fund across 25 positions, as published by its issuer for Nov 3, 2026. Over the year to Nov 4, 2026 the fund returned +47.2% with distributions reinvested.

IDNA

By weight, 27% of IDNA'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 51% of the fund across 52 positions, as published by its issuer for Nov 3, 2026. Over the year to Nov 4, 2026 the fund returned +81.1% with distributions reinvested. It sits 16.5% below its all-time high of Sep 2, 2021.

Questions people ask

Do BBH and IDNA hold the same stocks?: By their latest filings, 21% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, BBH or IDNA?: BBH has 64% of its weight in S&P 500 names and IDNA has 27%, so IDNA differs more from the index.
Which is cheaper, BBH or IDNA?: BBH charges 0.35% a year and IDNA charges 0.47%, so BBH is cheaper. Fees come from each fund's prospectus.

Other comparisons

BBH vs GNOM BBH vs GNMX BBH vs ARKG BBH vs IBBQ IDNA vs FBT IDNA vs XBI IDNA vs IBB IDNA vs PBE

Where to next

All thematic ETFs ranked by the S&P 500 Difference Score →How the scores are computed →BBH on its own →IDNA on its own →BBH dividend history →BBH holdings →IDNA dividend history →IDNA holdings →Method →Standards and sources →

Sources and dates

BBH filings on SEC EDGAR ↗

BBH prospectus with the expense ratio (SEC) ↗

VanEck website ↗

IDNA filings on SEC EDGAR ↗

IDNA prospectus with the expense ratio (SEC) ↗

iShares page for IDNA ↗

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.

Every number is an ETFIQ calculation with distributions reinvested.

Cite this pageCitation, APA and Markdown

ETFIQ, BBH against IDNA, data as of Nov 4, 2026. https://etfiq.com/compare/themes/bbh-vs-idna

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.