Do ARKG and IDNA hold the same stocks?

By their latest filings, 9% 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, ARKG or IDNA?

ARKG has 5% of its weight in S&P 500 names and IDNA has 27%, so IDNA differs more from the index.

Which is cheaper, ARKG or IDNA?

ARKG charges 0.75% a year and IDNA charges 0.47%, so IDNA is cheaper. Fees come from each fund's prospectus.

Data as of Nov 4, 2026.

Thematic ETFs

ARKG vs IDNA: Holdings Overlap & Returns

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Over the year to Nov 4, 2026, ARKG returned +68.4% to IDNA's +81.1%; 9% of their weight is in the same names.

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Net assets: $2.1bn on Nov 2, 2026 for ARK Genomic Revolution ETF, and $340m on Nov 3, 2026 for iShares Genomics Immunology and Healthcare ETF.

ARKG on its own →IDNA on its own →

At a glance

4.6%

ARKG in the S&P 500

27.4%

IDNA in the S&P 500

+68.4%

ARKG total return, 1 year

+81.1%

IDNA total return, 1 year

ARKG · 1 year to Nov 4, 2026 95% of its weight is outside the S&P 500

5% of ARKG's weight is in S&P 500 companies and 95% 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

IDNA costs 0.28 points a year less; their one-year returns differ by 12.7 points; ARKG is 6.4 times larger.

ARKG vs IDNA: Holdings Overlap & Returns
Measure	ARKG	IDNA
Return
Measure	ARKG	IDNA
Total return, 1 year	+68.4%	+81.1%
Drawdown
Measure	ARKG	IDNA
Below its all-time high	55.5%, high on Jan 20, 2021	16.5%, high on Sep 2, 2021
Benchmark
Measure	ARKG	IDNA
What it tracks	Genomics and gene editing	Genomics and gene editing
Cost and size
Measure	ARKG	IDNA
Expense ratio	0.75%	0.47%
Net assets, as of Nov 2, 2026	$2.1bn	$327m
Active share vs the S&P 500	98%	99%
Holdings
Measure	ARKG	IDNA
Holdings in common	9%
Top ten holdings, share of the fund	58%	51%

Method

Risk and return

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

ARKG IDNA

Return

Total return edge IDNA (slight) +64.7% +69.5%

Annualized edge IDNA (slight) +7.0% +7.4%

Price return edge IDNA (slight) +57.4% +59.6%

Risk

Volatility edge IDNA 44.7% 30.1%

Max drawdown edge IDNA −82.9% −68.1%

Risk-adjusted

Sharpe edge ARKG (slight) 0.31 0.29

Sortino edge ARKG (slight) 0.47 0.44

Calmar edge IDNA 0.08 0.11

Reading

From Jun 2019 to Oct 2026, IDNA returned slightly more: +69.5% to +64.7%. IDNA swung less: 30.1% to 44.7%. IDNA fell less at its worst: −68.1% to −82.9%.

Full scorecard

9 measures, with how each is measured Open ↓

Risk and return: ARKG vs IDNA: Holdings Overlap & Returns
Measure	ARKG	IDNA	Edge	How it is measured
Return
Total return	+64.7%	+69.5%	IDNA (slight)	Price change plus distributions, reinvested.
Annualized	+7.0%	+7.4%	IDNA (slight)	Total return as a yearly rate.
Price return	+57.4%	+59.6%	IDNA (slight)	Price change alone, distributions left out.
Risk
Volatility	44.7%	30.1%	IDNA	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	29.4%	20.2%	IDNA	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−82.9%	−68.1%	IDNA	Deepest fall from a high to the low after it.
Risk-adjusted
Sharpe	0.31	0.29	ARKG (slight)	Return above Treasury bills per unit of volatility.
Sortino	0.47	0.44	ARKG (slight)	Return above Treasury bills per unit of downside deviation.
Calmar	0.08	0.11	IDNA	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

By the books each fund has filed, ARKG and IDNA hold 9% of their money in the same securities at the same weight. Holdings dated Nov 2, 2026 and Nov 3, 2026.

50%

0 half 100%

half

9% in common

Positions both hold · largest shared weight first ARKG IDNA

TWIST BIOSCIENCE CORP 7.42% 5.61%

CRISPR THERAPEUTICS AG 5.48% 1.24%

PERSONALIS INC 0.62% 0.85%

PACIFIC BIOSCIENCES OF CALIF 1.35% 0.61%

INTELLIA THERAPEUTICS INC 1.89% 0.44%

PRIME MEDICINE INC 1.71% 0.12%

Only in one fund ↓

Only in ARKG

TEMPUS AI INC-CL A 9.85%

10X GENOMICS INC-CLASS A 7.52%

GUARDANT HEALTH INC 5.13%

ABSCI CORP 5.08%

NATERA INC 4.67%

ELI LILLY & CO 4.59%

CAREDX INC 4.50%

ILLUMINA INC 4.26%

Only in IDNA

MODERNA 13.33%

GENMAB 6.26%

REGENERON PHARMACEUTICALS 4.24%

BAYER AG 3.85%

EXELIXIS INC 3.80%

TAKEDA PHARMACEUTICAL 3.77%

REVOLUTION MEDICINES 3.60%

CARIS LIFE SCIENCES 3.50%

Check overlap with more funds →

Window by window

Window by window: ARKG vs IDNA: Holdings Overlap & Returns
	Total return
Window	ARKG	IDNA
3 months	+20.5%	+32.4%
6 months	+60.0%	+45.6%
1 year	+68.4%	+81.1%
3 years	+90.8%	+134.8%
Since launchNot the same days: ARKG Oct 2014 · IDNA Jun 2019	+164.2%	+88.1%

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Side by side

ARKG ARK Genomic Revolution ETF · Holds 35 stocks in genomics and gene editing, 5% 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 ARK iShares

Theme Genomics and gene editing Genomics and gene editing

In the S&P 500 4.6% 27.4%

Active share vs the S&P 500 98.5% 99.1%

In the Nasdaq-100 0.0% 7.5%

Holdings 35 52

Top ten, share of the fund 58.5% 51.3%

Expense ratio 0.75% 0.47%

Fee for the differing part 0.76% 0.47%

Total return, 1 year +68.4% +81.1%

vs its benchmark not measured not measured

Below its high −55.5% −16.5%

Net assets, ARKG as of Nov 2, 2026 and IDNA as of Nov 3, 2026 $2.1bn $340m

As of Nov 4, 2026. Source: ETFIQ.

9% of the two portfolios are the same securities at the same weight.

Client brief:

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About each fund

ARKG

By weight, 5% of ARKG's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 58% of the fund across 35 positions, as published by its issuer for Nov 2, 2026. Over the year to Nov 4, 2026 the fund returned +68.4% with distributions reinvested. It sits 55.5% below its all-time high of Jan 20, 2021.

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 ARKG and IDNA hold the same stocks?: By their latest filings, 9% 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, ARKG or IDNA?: ARKG has 5% of its weight in S&P 500 names and IDNA has 27%, so IDNA differs more from the index.
Which is cheaper, ARKG or IDNA?: ARKG charges 0.75% a year and IDNA charges 0.47%, so IDNA is cheaper. Fees come from each fund's prospectus.

Other comparisons

ARKG vs GNOM ARKG vs GNMX ARKG vs XAR ARKG vs URA IDNA vs GNOM IDNA vs GNMX IDNA vs PBPH IDNA vs PBE

Where to next

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

Sources and dates

ARKG filings on SEC EDGAR ↗

ARKG prospectus with the expense ratio (SEC) ↗

ARK page for ARKG ↗

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

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