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ARKK vs. IWM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

ARKK vs. IWM

Last updated Jun 13, 2026

ARKK (ARK Innovation ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - ARKK is a Technology Equities fund actively managed by ARK, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. ARKK is actively managed, while IWM is passively managed. Over the past 10 years, ARKK returned 15.57%/yr vs 11.27%/yr for IWM. A 0.72 correlation means they provide meaningful diversification when combined. ARKK charges 0.75%/yr vs 0.19%/yr for IWM.

Performance

ARKK vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ARK Innovation ETF (ARKK) and iShares Russell 2000 ETF (IWM). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, ARKK achieves a -1.65% return, which is significantly lower than IWM's 19.22% return. Over the past 10 years, ARKK has outperformed IWM with an annualized return of 15.57%, while IWM has yielded a comparatively lower 11.27% annualized return.

ARKK

1D
0.25%
1M
-3.07%
YTD
-1.65%
6M
-5.90%
1Y
21.98%
3Y*
19.87%
5Y*
-7.96%
10Y*
15.57%

IWM

1D
0.87%
1M
3.64%
YTD
19.22%
6M
16.00%
1Y
39.16%
3Y*
17.23%
5Y*
6.07%
10Y*
11.27%
*Multi-year figures are annualized to reflect compound growth (CAGR)

ARKK vs. IWM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
ARKK
ARK Innovation ETF		-1.65%35.49%8.40%69.04%-66.97%-23.60%152.71%35.08%3.52%87.33%
IWM
iShares Russell 2000 ETF		19.22%12.66%11.38%16.83%-20.48%14.54%20.03%25.39%-11.12%14.58%

Correlation

The correlation between ARKK and IWM 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

0.78

Correlation (5Y)
Calculated over the trailing 5-year period

0.78

Correlation (10Y)
Calculated over the trailing 10-year period

0.73

Correlation (All Time)
Calculated using the full available price history since Oct 31, 2014

0.72

The correlation between ARKK and IWM has been stable across timeframes, ranging from 0.72 to 0.78 - a consistent structural relationship.

ARKK vs. IWM - Sectors Allocation Comparison

Sectors
ARKK
IWM

Healthcare

27.4%
16.1%

Technology

26.4%
19.5%

Financial Services

15.4%
15.6%

Consumer Cyclical

13.7%
7.9%

Communication Services

10.9%
2.1%

Industrials

6.3%
17.2%

Basic Materials

-

4.5%

Consumer Defensive

-

2.1%

Energy

-

5.8%

Real Estate

-

5.6%

Utilities

-

3.0%

Healthcare

ARKK
27.4%
IWM
16.1%

Technology

ARKK
26.4%
IWM
19.5%

Financial Services

ARKK
15.4%
IWM
15.6%

Consumer Cyclical

ARKK
13.7%
IWM
7.9%

Communication Services

ARKK
10.9%
IWM
2.1%

Industrials

ARKK
6.3%
IWM
17.2%

Basic Materials

ARKK

-

IWM
4.5%

Consumer Defensive

ARKK

-

IWM
2.1%

Energy

ARKK

-

IWM
5.8%

Real Estate

ARKK

-

IWM
5.6%

Utilities

ARKK

-

IWM
3.0%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

ARK Innovation ETF

iShares Russell 2000 ETF

Often compared with ARKK:
ARKK vs. SPYARKK vs. QQQARKK vs. ARKQARKK vs. ARKWARKK vs. ^NDXARKK vs. SMHARKK vs. BRK-B
Often compared with IWM:
IWM vs. SPYIWM vs. VTWOIWM vs. IJRIWM vs. AVUVIWM vs. IWNIWM vs. VOOIWM vs. IWO

Return for Risk

ARKK vs. IWM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
ARKK
ARKK Risk / Return Rank: 2020
Overall Rank
ARKK Sharpe Ratio Rank: 2121
Sharpe Ratio Rank
ARKK Sortino Ratio Rank: 2222
Sortino Ratio Rank
ARKK Omega Ratio Rank: 2020
Omega Ratio Rank
ARKK Calmar Ratio Rank: 1919
Calmar Ratio Rank
ARKK Martin Ratio Rank: 1717
Martin Ratio Rank
IWM
IWM Risk / Return Rank: 7272
Overall Rank
IWM Sharpe Ratio Rank: 7171
Sharpe Ratio Rank
IWM Sortino Ratio Rank: 7171
Sortino Ratio Rank
IWM Omega Ratio Rank: 6363
Omega Ratio Rank
IWM Calmar Ratio Rank: 7979
Calmar Ratio Rank
IWM Martin Ratio Rank: 7676
Martin Ratio Rank
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.

ARKK vs. IWM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ARK Innovation ETF (ARKK) and iShares Russell 2000 ETF (IWM). 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.

ARKKIWMDifference
Sharpe ratioReturn per unit of total volatility
0.61
1.99

-1.39

Sortino ratioReturn per unit of downside risk
1.06
2.75

-1.69

Omega ratioGain probability vs. loss probability

1.12

1.33

-0.21

Calmar ratioReturn relative to maximum drawdown

0.70

3.57

-2.86

Martin ratioReturn relative to average drawdown

1.53

12.63

-11.09

ARKK vs. IWM - Sharpe Ratio Comparison

The current ARKK Sharpe Ratio is 0.61, which is lower than the IWM Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of ARKK and IWM, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

ARKK vs. IWM - Drawdown Comparison

The maximum ARKK drawdown since its inception was -80.97%, which is greater than IWM's maximum drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for ARKK and IWM.

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Drawdown Indicators

ARKKIWMDifference

Max Drawdown

Largest peak-to-trough decline

-80.97%

-59.05%

-21.92%

Max Drawdown (1Y)

Largest decline over 1 year

-31.35%

-11.03%

-20.32%

Max Drawdown (3Y)

Largest decline over 3 years

-39.56%

-27.50%

-12.06%

Max Drawdown (5Y)

Largest decline over 5 years

-77.23%

-31.91%

-45.32%

Max Drawdown (10Y)

Largest decline over 10 years

-80.97%

-41.13%

-39.84%

Current Drawdown

Current decline from peak

-51.01%

0.00%

-51.01%

Average Drawdown

Average peak-to-trough decline

-30.16%

-10.76%

-19.40%

Ulcer Index

Depth and duration of drawdowns from previous peaks

14.39%

3.12%

+11.27%

Volatility

ARKK vs. IWM - Volatility Comparison

ARK Innovation ETF (ARKK) has a higher volatility of 11.81% compared to iShares Russell 2000 ETF (IWM) at 7.16%. This indicates that ARKK's price experiences larger fluctuations and is considered to be riskier than IWM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

ARKKIWMDifference

Volatility (1M)

Calculated over the trailing 1-month period

11.81%

7.16%

+4.65%

Volatility (6M)

Calculated over the trailing 6-month period

26.30%

14.29%

+12.01%

Volatility (1Y)

Calculated over the trailing 1-year period

36.28%

19.73%

+16.55%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

46.40%

22.61%

+23.79%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

40.34%

23.08%

+17.26%

ARKK vs. IWM - Expense Ratio Comparison

ARKK has a 0.75% expense ratio, which is higher than IWM's 0.19% expense ratio.

Dividends

ARKK vs. IWM - Dividend Comparison

ARKK has not paid dividends to shareholders, while IWM's dividend yield for the trailing twelve months is around 0.87%.

PositionTTM20252024202320222021202020192018201720162015
ARKK
ARK Innovation ETF		0.00%0.00%0.00%0.70%0.00%0.55%1.64%0.38%3.14%1.32%0.00%2.27%
IWM
iShares Russell 2000 ETF		0.87%1.04%1.15%1.35%1.48%0.94%1.04%1.26%1.40%1.26%1.38%1.54%

Frequently Asked Questions

ARKK and IWM 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.

ARKK has higher volatility (11.81%) compared to IWM (7.16%). In terms of maximum drawdown, ARKK dropped -80.97% vs IWM's -59.05%.

On 10-year performance, ARKK leads with 15.57% vs 11.27% for IWM. On fees, IWM is cheaper at 0.19% per year. On volatility, IWM has been the lower-risk option at 7.16%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, ARKK has performed better with a 15.57% return vs 11.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

IWM is cheaper with a 0.19% expense ratio, compared with 0.75% for ARKK.

IWM has the higher dividend yield at 0.87%, compared with 0.00% for ARKK.

ARKK is categorized as Technology Equities, while IWM is Small Cap Blend Equities. They also come from different issuers: ARK and iShares. Their fees differ too: 0.75% for ARKK and 0.19% for IWM.

IWM currently has the higher Sharpe Ratio (1.99 vs 0.61), 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.

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