IWY vs. ARKX

Last updated Jun 13, 2026

IWY (iShares Russell Top 200 Growth ETF) and ARKX (ARK Space Exploration & Innovation ETF) are both exchange-traded funds - IWY is a Large Cap Growth Equities fund tracking the Russell Top 200 Growth Index, while ARKX is a Aerospace & Defense fund actively managed by ARK. IWY is passively managed, while ARKX is actively managed. Over the past 5 years, IWY returned 15.15%/yr vs 10.38%/yr for ARKX. A 0.70 correlation means they provide meaningful diversification when combined. IWY charges 0.20%/yr vs 0.75%/yr for ARKX.

Performance

IWY vs. ARKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell Top 200 Growth ETF (IWY) and ARK Space Exploration & Innovation ETF (ARKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IWY achieves a 2.99% return, which is significantly lower than ARKX's 16.56% return.

IWY

• 1D: -0.00%
• 1M: -2.39%
• YTD: 2.99%
• 6M: 3.75%
• 1Y: 19.83%
• 3Y*: 23.03%
• 5Y*: 15.15%
• 10Y*: 19.24%

ARKX

• 1D: -1.94%
• 1M: -2.96%
• YTD: 16.56%
• 6M: 17.78%
• 1Y: 52.99%
• 3Y*: 31.55%
• 5Y*: 10.38%
• 10Y*: —

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

IWY vs. ARKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
IWY iShares Russell Top 200 Growth ETF	2.99%	18.19%	34.89%	46.49%	-29.91%	30.19%
ARKX ARK Space Exploration & Innovation ETF	16.56%	48.46%	26.67%	24.37%	-34.27%	-8.05%

Correlation

The correlation between IWY and ARKX is 0.60, 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	0.60
Correlation (3Y) Calculated over the trailing 3-year period	0.61
Correlation (5Y) Calculated over the trailing 5-year period	0.70
Correlation (All Time) Calculated using the full available price history since Mar 30, 2021	0.70

The correlation between IWY and ARKX shifts across timeframes, from 0.60 (1 year) to 0.70 (5 years), reflecting how their relationship changes across market environments.

IWY vs. ARKX - Sectors Allocation Comparison

Sectors	IWY	ARKX
Technology	54.9%	27.4%
Communication Services	13.9%	7.6%
Consumer Cyclical	11.4%	7.8%
Healthcare	6.6%	1.5%
Financial Services	5.6%	-
Industrials	4.0%	55.7%
Consumer Defensive	3.0%	-
Utilities	1.1%	-
Real Estate	0.3%	-
Basic Materials	0.3%	0.0%
Energy	0.0%	-

Return for Risk

IWY vs. ARKX — Risk / Return Rank

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

IWY

IWY Risk / Return Rank: 35
IWY Sharpe Ratio Rank: 40
IWY Sortino Ratio Rank: 37
IWY Omega Ratio Rank: 38
IWY Calmar Ratio Rank: 28
IWY Martin Ratio Rank: 30

ARKX

ARKX Risk / Return Rank: 51
ARKX Sharpe Ratio Rank: 53
ARKX Sortino Ratio Rank: 50
ARKX Omega Ratio Rank: 45
ARKX Calmar Ratio Rank: 60
ARKX Martin Ratio Rank: 47

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.

IWY vs. ARKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell Top 200 Growth ETF (IWY) and ARK Space Exploration & Innovation ETF (ARKX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	IWY	ARKX	Difference
Sharpe ratio: Return per unit of total volatility	1.24	1.59	-0.35
Sortino ratio: Return per unit of downside risk	1.73	2.15	-0.42
Omega ratio: Gain probability vs. loss probability	1.22	1.26	-0.04
Calmar ratio: Return relative to maximum drawdown	1.20	2.61	-1.41
Martin ratio: Return relative to average drawdown	3.85	6.87	-3.02

IWY vs. ARKX - Sharpe Ratio Comparison

The current IWY Sharpe Ratio is 1.24, which is comparable to the ARKX Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of IWY and ARKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

IWY vs. ARKX - Drawdown Comparison

The maximum IWY drawdown since its inception was -32.68%, smaller than the maximum ARKX drawdown of -43.61%. Use the drawdown chart below to compare losses from any high point for IWY and ARKX.

Drawdown Indicators

	IWY	ARKX	Difference
Max Drawdown Largest peak-to-trough decline	-32.68%	-43.61%	+10.93%
Max Drawdown (1Y) Largest decline over 1 year	-16.63%	-20.42%	+3.79%
Max Drawdown (3Y) Largest decline over 3 years	-23.22%	-25.47%	+2.25%
Max Drawdown (5Y) Largest decline over 5 years	-32.68%	-43.61%	+10.93%
Max Drawdown (10Y) Largest decline over 10 years	-32.68%	—	—
Current Drawdown Current decline from peak	-5.68%	-10.49%	+4.81%
Average Drawdown Average peak-to-trough decline	-4.75%	-19.92%	+15.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.16%	7.74%	-2.58%

Volatility

IWY vs. ARKX - Volatility Comparison

The current volatility for iShares Russell Top 200 Growth ETF (IWY) is 5.30%, while ARK Space Exploration & Innovation ETF (ARKX) has a volatility of 12.77%. This indicates that IWY experiences smaller price fluctuations and is considered to be less risky than ARKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IWY	ARKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.30%	12.77%	-7.47%
Volatility (6M) Calculated over the trailing 6-month period	12.38%	26.51%	-14.13%
Volatility (1Y) Calculated over the trailing 1-year period	16.01%	33.50%	-17.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.54%	28.02%	-6.48%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.01%	27.65%	-6.64%

IWY vs. ARKX - Expense Ratio Comparison

IWY has a 0.20% expense ratio, which is lower than ARKX's 0.75% expense ratio.

Dividends

IWY vs. ARKX - Dividend Comparison

IWY's dividend yield for the trailing twelve months is around 0.34%, while ARKX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKX ARK Space Exploration & Innovation ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IWY iShares Russell Top 200 Growth ETF	0.34%	0.36%	0.42%	0.68%	0.88%	0.50%	0.71%	1.06%	1.32%	1.26%	1.51%	1.58%

Frequently Asked Questions

Can I hold both IWY and ARKX in my portfolio?

IWY and ARKX have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IWY or ARKX?

ARKX has higher volatility (12.77%) compared to IWY (5.30%). In terms of maximum drawdown, IWY dropped -32.68% vs ARKX's -43.61%.

Which ETF is better, IWY or ARKX?

On 5-year performance, IWY leads with 15.15% vs 10.38% for ARKX. On fees, IWY is cheaper at 0.20% per year. On volatility, IWY has been the lower-risk option at 5.30%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IWY or ARKX?

Over the 5-year period, IWY has performed better with a 15.15% return vs 10.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IWY or ARKX?

IWY is cheaper with a 0.20% expense ratio, compared with 0.75% for ARKX.

Which ETF pays a higher dividend yield, IWY or ARKX?

IWY has the higher dividend yield at 0.34%, compared with 0.00% for ARKX.

What is the main difference between IWY and ARKX?

IWY is categorized as Large Cap Growth Equities, while ARKX is Aerospace & Defense. They also come from different issuers: iShares and ARK. Their fees differ too: 0.20% for IWY and 0.75% for ARKX.

Which has better risk-adjusted returns?

ARKX currently has the higher Sharpe Ratio (1.59 vs 1.24), 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.