IWM vs. IWDA.AS
IWM (iShares Russell 2000 ETF) and IWDA.AS (iShares Core MSCI World UCITS ETF USD (Acc)) are both exchange-traded funds - IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index, while IWDA.AS is a Global Equities fund tracking the MSCI World Index. Both are passively managed. Over the past 10 years, IWM returned 10.78%/yr vs 13.07%/yr for IWDA.AS. A 0.55 correlation means they provide meaningful diversification when combined. IWM charges 0.19%/yr vs 0.20%/yr for IWDA.AS.
Performance
IWM vs. IWDA.AS - Performance Comparison
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Different Trading Currencies
IWM is traded in USD, while IWDA.AS is traded in EUR. To make them comparable, the IWDA.AS values have been converted to USD using the latest available exchange rates.
Returns By Period
In the year-to-date period, IWM achieves a 15.62% return, which is significantly higher than IWDA.AS's 9.79% return. Over the past 10 years, IWM has underperformed IWDA.AS with an annualized return of 10.78%, while IWDA.AS has yielded a comparatively higher 13.07% annualized return.
IWM
- 1D
- 0.87%
- 1M
- -0.02%
- YTD
- 15.62%
- 6M
- 13.83%
- 1Y
- 35.52%
- 3Y*
- 16.64%
- 5Y*
- 5.48%
- 10Y*
- 10.78%
IWDA.AS
- 1D
- 0.07%
- 1M
- 2.12%
- YTD
- 9.79%
- 6M
- 10.59%
- 1Y
- 25.58%
- 3Y*
- 20.73%
- 5Y*
- 11.83%
- 10Y*
- 13.07%
IWM vs. IWDA.AS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IWM iShares Russell 2000 ETF | 15.62% | 12.66% | 11.38% | 16.83% | -20.48% | 14.54% | 20.03% | 25.39% | -11.12% | 14.58% |
IWDA.AS iShares Core MSCI World UCITS ETF USD (Acc) | 9.79% | 21.46% | 19.36% | 23.68% | -18.74% | 23.51% | 15.60% | 27.07% | -8.63% | 22.70% |
Correlation
The correlation between IWM and IWDA.AS is 0.57, 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 | 0.57 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.56 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.57 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.55 |
Correlation (All Time) Calculated using the full available price history since Oct 20, 2009 | 0.55 |
The correlation between IWM and IWDA.AS has been stable across timeframes, ranging from 0.55 to 0.57 - a consistent structural relationship.
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Return for Risk
IWM vs. IWDA.AS — Risk / Return Rank
IWM
IWDA.AS
IWM vs. IWDA.AS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2000 ETF (IWM) and iShares Core MSCI World UCITS ETF USD (Acc) (IWDA.AS). 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.
| IWM | IWDA.AS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.39 | ||
| Sortino ratioReturn per unit of downside risk | -0.73 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.40 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 3.24 | 3.05 | +0.19 |
| Martin ratioReturn relative to average drawdown | 11.44 | 13.16 | -1.72 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| IWM | IWDA.AS | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.83 | 2.22 | -0.39 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.24 | 0.75 | -0.51 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.47 | 0.81 | -0.35 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.36 | 0.68 | -0.31 |
Drawdowns
IWM vs. IWDA.AS - Drawdown Comparison
The maximum IWM drawdown since its inception was -59.05%, which is greater than IWDA.AS's maximum drawdown of -34.11%. Use the drawdown chart below to compare losses from any high point for IWM and IWDA.AS.
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Drawdown Indicators
| IWM | IWDA.AS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.05% | -34.11% | -24.94% |
Max Drawdown (1Y)Largest decline over 1 year | -11.03% | -8.39% | -2.64% |
Max Drawdown (3Y)Largest decline over 3 years | -27.50% | -17.83% | -9.67% |
Max Drawdown (5Y)Largest decline over 5 years | -31.91% | -25.94% | -5.97% |
Max Drawdown (10Y)Largest decline over 10 years | -41.13% | -34.11% | -7.02% |
Current DrawdownCurrent decline from peak | -2.71% | -0.51% | -2.20% |
Average DrawdownAverage peak-to-trough decline | -10.76% | -4.64% | -6.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.11% | 1.95% | +1.16% |
Volatility
IWM vs. IWDA.AS - Volatility Comparison
iShares Russell 2000 ETF (IWM) has a higher volatility of 6.52% compared to iShares Core MSCI World UCITS ETF USD (Acc) (IWDA.AS) at 2.94%. This indicates that IWM's price experiences larger fluctuations and is considered to be riskier than IWDA.AS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IWM | IWDA.AS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.52% | 2.94% | +3.58% |
Volatility (6M)Calculated over the trailing 6-month period | 14.00% | 8.59% | +5.41% |
Volatility (1Y)Calculated over the trailing 1-year period | 19.53% | 11.51% | +8.02% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.58% | 15.47% | +7.11% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.07% | 15.80% | +7.27% |
IWM vs. IWDA.AS - Expense Ratio Comparison
IWM has a 0.19% expense ratio, which is lower than IWDA.AS's 0.20% 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
IWM vs. IWDA.AS - Dividend Comparison
IWM's dividend yield for the trailing twelve months is around 0.89%, while IWDA.AS has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IWDA.AS iShares Core MSCI World UCITS ETF USD (Acc) | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
IWM iShares Russell 2000 ETF | 0.89% | 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 IWDA.AS have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, IWM is cheaper at 0.19% per year. The better choice depends on whether you care most about return, fees, risk, or income.
IWM is cheaper with a 0.19% expense ratio, compared with 0.20% for IWDA.AS.
IWM is categorized as Small Cap Blend Equities, while IWDA.AS is Global Equities. IWM tracks Russell 2000 Index, while IWDA.AS tracks MSCI World Index. Their fees differ too: 0.19% for IWM and 0.20% for IWDA.AS.
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