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IWM vs. DIA
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IWM vs. DIA

Last updated Jun 13, 2026

IWM (iShares Russell 2000 ETF) and DIA (State Street SPDR Dow Jones Industrial Average ETF Trust) are both exchange-traded funds - IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index, while DIA is a Large Cap Blend Equities fund tracking the Dow Jones Industrial Average. Both are passively managed. Over the past 10 years, IWM returned 11.27%/yr vs 13.40%/yr for DIA. Their correlation of 0.80 suggests significant overlap in exposure. IWM charges 0.19%/yr vs 0.16%/yr for DIA.

Performance

IWM vs. DIA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell 2000 ETF (IWM) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IWM achieves a 19.22% return, which is significantly higher than DIA's 7.27% return. Over the past 10 years, IWM has underperformed DIA with an annualized return of 11.27%, while DIA has yielded a comparatively higher 13.40% annualized return.

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%

DIA

1D
0.73%
1M
3.26%
YTD
7.27%
6M
6.43%
1Y
21.01%
3Y*
16.29%
5Y*
10.14%
10Y*
13.40%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IWM vs. DIA - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
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%
DIA
State Street SPDR Dow Jones Industrial Average ETF Trust		7.27%14.71%14.82%16.02%-7.02%20.83%9.59%24.70%-3.74%28.08%

Correlation

The correlation between IWM and DIA is 0.79, 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

0.79

Correlation (3Y)
Calculated over the trailing 3-year period

0.78

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

0.81

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

0.78

Correlation (All Time)
Calculated using the full available price history since May 26, 2000

0.80

The correlation between IWM and DIA has been stable across timeframes, ranging from 0.78 to 0.81 - a consistent structural relationship.

IWM vs. DIA - Sectors Allocation Comparison

Sectors
IWM
DIA

Technology

19.5%
17.1%

Industrials

17.2%
18.4%

Healthcare

16.1%
13.1%

Financial Services

15.6%
27.2%

Consumer Cyclical

7.9%
11.6%

Energy

5.8%
2.4%

Real Estate

5.6%

-

Basic Materials

4.5%
4.0%

Utilities

3.0%

-

Consumer Defensive

2.1%
4.4%

Communication Services

2.1%
1.9%

Technology

IWM
19.5%
DIA
17.1%

Industrials

IWM
17.2%
DIA
18.4%

Healthcare

IWM
16.1%
DIA
13.1%

Financial Services

IWM
15.6%
DIA
27.2%

Consumer Cyclical

IWM
7.9%
DIA
11.6%

Energy

IWM
5.8%
DIA
2.4%

Real Estate

IWM
5.6%
DIA

-

Basic Materials

IWM
4.5%
DIA
4.0%

Utilities

IWM
3.0%
DIA

-

Consumer Defensive

IWM
2.1%
DIA
4.4%

Communication Services

IWM
2.1%
DIA
1.9%

Compare stocks, funds, or ETFs

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

iShares Russell 2000 ETF

State Street SPDR Dow Jones Industrial Average ETF Trust

Often compared with IWM:
IWM vs. SPYIWM vs. VTWOIWM vs. IJRIWM vs. AVUVIWM vs. IWNIWM vs. VOOIWM vs. IWO
Often compared with DIA:
DIA vs. QQQDIA vs. SPYDIA vs. VOODIA vs. DJDDIA vs. SCHDDIA vs. IYYDIA vs. ^DJI

Return for Risk

IWM vs. DIA — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
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
DIA
DIA Risk / Return Rank: 5555
Overall Rank
DIA Sharpe Ratio Rank: 5757
Sharpe Ratio Rank
DIA Sortino Ratio Rank: 6060
Sortino Ratio Rank
DIA Omega Ratio Rank: 5555
Omega Ratio Rank
DIA Calmar Ratio Rank: 4949
Calmar Ratio Rank
DIA Martin Ratio Rank: 5555
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.

IWM vs. DIA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2000 ETF (IWM) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). 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.

IWMDIADifference
Sharpe ratioReturn per unit of total volatility
1.99
1.69

+0.31

Sortino ratioReturn per unit of downside risk
2.75
2.46

+0.29

Omega ratioGain probability vs. loss probability

1.33

1.30

+0.03

Calmar ratioReturn relative to maximum drawdown

3.57

2.16

+1.41

Martin ratioReturn relative to average drawdown

12.63

8.35

+4.28

IWM vs. DIA - Sharpe Ratio Comparison

The current IWM Sharpe Ratio is 1.99, which is comparable to the DIA Sharpe Ratio of 1.69. The chart below compares the historical Sharpe Ratios of IWM and DIA, 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

IWM vs. DIA - Drawdown Comparison

The maximum IWM drawdown since its inception was -59.05%, which is greater than DIA's maximum drawdown of -51.87%. Use the drawdown chart below to compare losses from any high point for IWM and DIA.

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Drawdown Indicators

IWMDIADifference

Max Drawdown

Largest peak-to-trough decline

-59.05%

-51.87%

-7.18%

Max Drawdown (1Y)

Largest decline over 1 year

-11.03%

-9.76%

-1.27%

Max Drawdown (3Y)

Largest decline over 3 years

-27.50%

-15.95%

-11.55%

Max Drawdown (5Y)

Largest decline over 5 years

-31.91%

-20.76%

-11.15%

Max Drawdown (10Y)

Largest decline over 10 years

-41.13%

-36.70%

-4.43%

Current Drawdown

Current decline from peak

0.00%

-0.70%

+0.70%

Average Drawdown

Average peak-to-trough decline

-10.76%

-7.14%

-3.62%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.12%

2.53%

+0.59%

Volatility

IWM vs. DIA - Volatility Comparison

iShares Russell 2000 ETF (IWM) has a higher volatility of 7.16% compared to State Street SPDR Dow Jones Industrial Average ETF Trust (DIA) at 4.32%. This indicates that IWM's price experiences larger fluctuations and is considered to be riskier than DIA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IWMDIADifference

Volatility (1M)

Calculated over the trailing 1-month period

7.16%

4.32%

+2.84%

Volatility (6M)

Calculated over the trailing 6-month period

14.29%

9.78%

+4.51%

Volatility (1Y)

Calculated over the trailing 1-year period

19.73%

12.52%

+7.21%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

22.61%

14.85%

+7.76%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

23.08%

17.56%

+5.52%

IWM vs. DIA - Expense Ratio Comparison

IWM has a 0.19% expense ratio, which is higher than DIA's 0.16% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IWM vs. DIA - Dividend Comparison

IWM's dividend yield for the trailing twelve months is around 0.87%, less than DIA's 1.37% yield.

PositionTTM20252024202320222021202020192018201720162015
DIA
State Street SPDR Dow Jones Industrial Average ETF Trust		1.37%1.43%1.61%1.81%1.91%1.58%1.87%1.85%2.24%1.97%2.26%2.33%
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

IWM and DIA have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

IWM has higher volatility (7.16%) compared to DIA (4.32%). In terms of maximum drawdown, IWM dropped -59.05% vs DIA's -51.87%.

On 10-year performance, DIA leads with 13.40% vs 11.27% for IWM. On fees, DIA is cheaper at 0.16% per year. On volatility, DIA has been the lower-risk option at 4.32%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, DIA has performed better with a 13.40% return vs 11.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

DIA is cheaper with a 0.16% expense ratio, compared with 0.19% for IWM.

DIA has the higher dividend yield at 1.37%, compared with 0.87% for IWM.

IWM is categorized as Small Cap Blend Equities, while DIA is Large Cap Blend Equities. IWM tracks Russell 2000 Index, while DIA tracks Dow Jones Industrial Average. They also come from different issuers: iShares and State Street. Their fees differ too: 0.19% for IWM and 0.16% for DIA.

IWM currently has the higher Sharpe Ratio (1.99 vs 1.69), 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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