IDNA vs. ARKG

Last updated Jun 3, 2026

IDNA (iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund) and ARKG (ARK Genomic Revolution Multi-Sector ETF) are both Health & Biotech Equities funds. IDNA is passively managed, while ARKG is actively managed. Over the past 5 years, IDNA returned -8.26%/yr vs -15.45%/yr for ARKG. Their correlation of 0.85 suggests significant overlap in exposure. IDNA charges 0.47%/yr vs 0.75%/yr for ARKG.

Performance

IDNA vs. ARKG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA) and ARK Genomic Revolution Multi-Sector ETF (ARKG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IDNA achieves a 9.51% return, which is significantly lower than ARKG's 17.36% return.

IDNA

• 1D: -2.18%
• 1M: -2.18%
• YTD: 9.51%
• 6M: 10.53%
• 1Y: 41.74%
• 3Y*: 6.48%
• 5Y*: -8.26%
• 10Y*: —

ARKG

• 1D: -2.16%
• 1M: 12.21%
• YTD: 17.36%
• 6M: 14.32%
• 1Y: 57.12%
• 3Y*: 0.75%
• 5Y*: -15.45%
• 10Y*: 7.24%

*Multi-year figures are annualized to reflect compound growth (CAGR)

IDNA vs. ARKG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
IDNA iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund	9.51%	17.26%	-0.72%	-7.63%	-42.28%	-3.98%	54.30%	20.83%
ARKG ARK Genomic Revolution Multi-Sector ETF	17.36%	23.04%	-28.24%	16.22%	-53.90%	-33.92%	180.40%	11.53%

Correlation

The correlation between IDNA and ARKG is 0.75, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.79
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since Jun 14, 2019	0.85

The correlation between IDNA and ARKG shifts across timeframes, from 0.75 (1 year) to 0.85 (all time), reflecting how their relationship changes across market environments.

IDNA vs. ARKG - Sectors Allocation Comparison

Sectors	IDNA	ARKG
Healthcare	97.8%	99.2%
Industrials	0.4%	-
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	0.5%
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

IDNA vs. ARKG — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IDNA

IDNA Risk / Return Rank: 57
IDNA Sharpe Ratio Rank: 49
IDNA Sortino Ratio Rank: 50
IDNA Omega Ratio Rank: 43
IDNA Calmar Ratio Rank: 79
IDNA Martin Ratio Rank: 64

ARKG

ARKG Risk / Return Rank: 39
ARKG Sharpe Ratio Rank: 39
ARKG Sortino Ratio Rank: 40
ARKG Omega Ratio Rank: 35
ARKG Calmar Ratio Rank: 45
ARKG Martin Ratio Rank: 35

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IDNA vs. ARKG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA) and ARK Genomic Revolution Multi-Sector ETF (ARKG). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	IDNA	ARKG	Difference
Sharpe ratio Return per unit of total volatility	1.71	1.40	+0.32
Sortino ratio Return per unit of downside risk	2.48	2.08	+0.40
Omega ratio Gain probability vs. loss probability	1.28	1.23	+0.04
Calmar ratio Return relative to maximum drawdown	4.09	2.27	+1.82
Martin ratio Return relative to average drawdown	11.79	5.46	+6.33
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IDNA vs. ARKG - Sharpe Ratio Comparison

The current IDNA Sharpe Ratio is 1.71, which is comparable to the ARKG Sharpe Ratio of 1.40. The chart below compares the historical Sharpe Ratios of IDNA and ARKG, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	IDNA	ARKG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.71	1.40	+0.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.29	-0.34	+0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.18	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.10	0.13	-0.04

Drawdowns

IDNA vs. ARKG - Drawdown Comparison

The maximum IDNA drawdown since its inception was -68.26%, smaller than the maximum ARKG drawdown of -83.59%. Use the drawdown chart below to compare losses from any high point for IDNA and ARKG.

Drawdown Indicators

	IDNA	ARKG	Difference
Max Drawdown Largest peak-to-trough decline	-68.26%	-83.59%	+15.33%
Max Drawdown (1Y) Largest decline over 1 year	-10.66%	-27.51%	+16.85%
Max Drawdown (3Y) Largest decline over 3 years	-29.73%	-51.96%	+22.23%
Max Drawdown (5Y) Largest decline over 5 years	-68.26%	-80.18%	+11.92%
Max Drawdown (10Y) Largest decline over 10 years	—	-83.59%	—
Current Drawdown Current decline from peak	-46.01%	-69.58%	+23.57%
Average Drawdown Average peak-to-trough decline	-36.24%	-35.86%	-0.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.70%	11.46%	-7.76%

Volatility

IDNA vs. ARKG - Volatility Comparison

The current volatility for iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA) is 7.24%, while ARK Genomic Revolution Multi-Sector ETF (ARKG) has a volatility of 11.89%. This indicates that IDNA experiences smaller price fluctuations and is considered to be less risky than ARKG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDNA	ARKG	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.24%	11.89%	-4.65%
Volatility (6M) Calculated over the trailing 6-month period	18.21%	29.12%	-10.91%
Volatility (1Y) Calculated over the trailing 1-year period	24.51%	41.24%	-16.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.42%	45.62%	-17.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.53%	41.13%	-11.60%

IDNA vs. ARKG - Expense Ratio Comparison

IDNA has a 0.47% expense ratio, which is lower than ARKG's 0.75% expense ratio.

Dividends

IDNA vs. ARKG - Dividend Comparison

IDNA's dividend yield for the trailing twelve months is around 1.08%, while ARKG has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
ARKG ARK Genomic Revolution Multi-Sector ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.62%	0.85%	3.14%	0.82%	1.34%
IDNA iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund	1.08%	1.18%	0.98%	1.04%	0.54%	0.70%	0.26%	0.80%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IDNA and ARKG in my portfolio?

IDNA and ARKG have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IDNA or ARKG?

ARKG has higher volatility (11.89%) compared to IDNA (7.24%). In terms of maximum drawdown, IDNA dropped -68.26% vs ARKG's -83.59%.

Which ETF is better, IDNA or ARKG?

On 5-year performance, IDNA leads with -8.26% vs -15.45% for ARKG. On fees, IDNA is cheaper at 0.47% per year. On volatility, IDNA has been the lower-risk option at 7.24%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IDNA or ARKG?

Over the 5-year period, IDNA has performed better with a -8.26% return vs -15.45%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IDNA or ARKG?

IDNA is cheaper with a 0.47% expense ratio, compared with 0.75% for ARKG.

Which ETF pays a higher dividend yield, IDNA or ARKG?

IDNA has the higher dividend yield at 1.08%, compared with 0.00% for ARKG.

What is the main difference between IDNA and ARKG?

They also come from different issuers: iShares and ARK. Their fees differ too: 0.47% for IDNA and 0.75% for ARKG.

Which has better risk-adjusted returns?

IDNA currently has the higher Sharpe Ratio (1.71 vs 1.40), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.