IWY vs. ARKB

Last updated Jun 16, 2026

IWY (iShares Russell Top 200 Growth ETF) and ARKB (ARK 21Shares Bitcoin ETF) are both exchange-traded funds - IWY is a Large Cap Growth Equities fund tracking the Russell Top 200 Growth Index, while ARKB is a Cryptocurrency fund tracking the CME CF Bitcoin Reference Rate - New York Variant. Both are passively managed. Over the past year, IWY returned 24.23% vs -36.82% for ARKB. At a 0.38 correlation, their price movements are largely independent. IWY charges 0.20%/yr vs 0.21%/yr for ARKB.

Performance

IWY vs. ARKB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell Top 200 Growth ETF (IWY) and ARK 21Shares Bitcoin ETF (ARKB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IWY achieves a 5.40% return, which is significantly higher than ARKB's -23.93% return.

IWY

• 1D: 2.34%
• 1M: -0.22%
• YTD: 5.40%
• 6M: 6.65%
• 1Y: 24.23%
• 3Y*: 23.50%
• 5Y*: 15.67%
• 10Y*: 19.59%

ARKB

• 1D: 4.79%
• 1M: -15.85%
• YTD: -23.93%
• 6M: -22.44%
• 1Y: -36.82%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

IWY vs. ARKB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
IWY iShares Russell Top 200 Growth ETF	5.40%	18.19%	33.95%
ARKB ARK 21Shares Bitcoin ETF	-23.93%	-6.59%	86.54%

Correlation

The correlation between IWY and ARKB is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.47
Correlation (All Time) Calculated using the full available price history since Jan 11, 2024	0.38

Return for Risk

IWY vs. ARKB — Risk / Return Rank

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

IWY

IWY Risk / Return Rank: 41
IWY Sharpe Ratio Rank: 48
IWY Sortino Ratio Rank: 46
IWY Omega Ratio Rank: 45
IWY Calmar Ratio Rank: 33
IWY Martin Ratio Rank: 34

ARKB

ARKB Risk / Return Rank: 3
ARKB Sharpe Ratio Rank: 3
ARKB Sortino Ratio Rank: 3
ARKB Omega Ratio Rank: 3
ARKB Calmar Ratio Rank: 3
ARKB Martin Ratio Rank: 3

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. ARKB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell Top 200 Growth ETF (IWY) and ARK 21Shares Bitcoin ETF (ARKB). 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	ARKB	Difference
Sharpe ratio: Return per unit of total volatility	1.51	-0.84	+2.35
Sortino ratio: Return per unit of downside risk	2.07	-1.12	+3.19
Omega ratio: Gain probability vs. loss probability	1.27	0.87	+0.39
Calmar ratio: Return relative to maximum drawdown	1.46	-0.71	+2.17
Martin ratio: Return relative to average drawdown	4.70	-1.24	+5.94

IWY vs. ARKB - Sharpe Ratio Comparison

The current IWY Sharpe Ratio is 1.51, which is higher than the ARKB Sharpe Ratio of -0.84. The chart below compares the historical Sharpe Ratios of IWY and ARKB, 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. ARKB - Drawdown Comparison

The maximum IWY drawdown since its inception was -32.68%, smaller than the maximum ARKB drawdown of -52.04%. Use the drawdown chart below to compare losses from any high point for IWY and ARKB.

Drawdown Indicators

	IWY	ARKB	Difference
Max Drawdown Largest peak-to-trough decline	-32.68%	-52.04%	+19.36%
Max Drawdown (1Y) Largest decline over 1 year	-16.63%	-52.04%	+35.41%
Max Drawdown (3Y) Largest decline over 3 years	-23.22%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-32.68%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-32.68%	—	—
Current Drawdown Current decline from peak	-3.47%	-47.03%	+43.56%
Average Drawdown Average peak-to-trough decline	-4.75%	-16.61%	+11.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.17%	29.75%	-24.58%

Volatility

IWY vs. ARKB - Volatility Comparison

The current volatility for iShares Russell Top 200 Growth ETF (IWY) is 5.68%, while ARK 21Shares Bitcoin ETF (ARKB) has a volatility of 12.88%. This indicates that IWY experiences smaller price fluctuations and is considered to be less risky than ARKB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IWY	ARKB	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.68%	12.88%	-7.20%
Volatility (6M) Calculated over the trailing 6-month period	12.59%	34.67%	-22.08%
Volatility (1Y) Calculated over the trailing 1-year period	16.14%	44.23%	-28.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.57%	50.14%	-28.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.03%	50.14%	-29.11%

IWY vs. ARKB - Expense Ratio Comparison

IWY has a 0.20% expense ratio, which is lower than ARKB's 0.21% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IWY vs. ARKB - Dividend Comparison

IWY's dividend yield for the trailing twelve months is around 0.43%, while ARKB has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKB ARK 21Shares Bitcoin 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	0.43%	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 ARKB in my portfolio?

IWY and ARKB have a correlation of 0.47, 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 ARKB?

ARKB has higher volatility (12.88%) compared to IWY (5.68%). In terms of maximum drawdown, IWY dropped -32.68% vs ARKB's -52.04%.

Which ETF is better, IWY or ARKB?

On 1-year performance, IWY leads with 24.23% vs -36.82% for ARKB. On fees, IWY is cheaper at 0.20% per year. On volatility, IWY has been the lower-risk option at 5.68%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IWY or ARKB?

Over the 1-year period, IWY has performed better with a 24.23% return vs -36.82%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IWY or ARKB?

IWY is cheaper with a 0.20% expense ratio, compared with 0.21% for ARKB.

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

IWY has the higher dividend yield at 0.43%, compared with 0.00% for ARKB.

What is the main difference between IWY and ARKB?

IWY is categorized as Large Cap Growth Equities, while ARKB is Cryptocurrency. IWY tracks Russell Top 200 Growth Index, while ARKB tracks CME CF Bitcoin Reference Rate - New York Variant. They also come from different issuers: iShares and ARK. Their fees differ too: 0.20% for IWY and 0.21% for ARKB.

Which has better risk-adjusted returns?

IWY currently has the higher Sharpe Ratio (1.51 vs -0.84), 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.