TMFX vs. IWM
TMFX (Motley Fool Next Index ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - TMFX is a Mid Cap Growth Equities fund tracking the Motley Fool Next Index, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Both are passively managed. Over the past 3 years, TMFX returned 12.37%/yr vs 19.22%/yr for IWM. Their correlation of 0.89 suggests significant overlap in exposure. TMFX charges 0.50%/yr vs 0.19%/yr for IWM.
Performance
TMFX vs. IWM - Performance Comparison
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Returns By Period
In the year-to-date period, TMFX achieves a 1.68% return, which is significantly lower than IWM's 20.47% return.
TMFX
- 1D
- -0.47%
- 1M
- 0.30%
- YTD
- 1.68%
- 6M
- -0.26%
- 1Y
- 10.28%
- 3Y*
- 12.37%
- 5Y*
- —
- 10Y*
- —
IWM
- 1D
- -0.96%
- 1M
- 3.82%
- YTD
- 20.47%
- 6M
- 17.64%
- 1Y
- 40.90%
- 3Y*
- 19.22%
- 5Y*
- 6.27%
- 10Y*
- 11.58%
TMFX vs. IWM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
TMFX Motley Fool Next Index ETF | 1.68% | 10.41% | 16.04% | 17.95% | -28.16% | -0.65% |
IWM iShares Russell 2000 ETF | 20.47% | 12.66% | 11.38% | 16.83% | -20.48% | -0.22% |
Correlation
The correlation between TMFX and IWM is 0.84, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.84 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.87 |
Correlation (All Time) Calculated using the full available price history since Dec 31, 2021 | 0.89 |
The correlation between TMFX and IWM has been stable across timeframes, ranging from 0.84 to 0.89 - a consistent structural relationship.
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Return for Risk
TMFX vs. IWM — Risk / Return Rank
TMFX
IWM
TMFX vs. IWM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Motley Fool Next Index ETF (TMFX) 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.
| TMFX | IWM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.48 | ||
| Sortino ratioReturn per unit of downside risk | -1.90 | ||
| Omega ratioGain probability vs. loss probability | 1.11 | 1.34 | -0.23 |
| Calmar ratioReturn relative to maximum drawdown | 0.74 | 3.73 | -2.99 |
| Martin ratioReturn relative to average drawdown | 2.34 | 13.18 | -10.84 |
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Drawdowns
TMFX vs. IWM - Drawdown Comparison
The maximum TMFX drawdown since its inception was -34.72%, smaller than the maximum IWM drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for TMFX and IWM.
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Drawdown Indicators
| TMFX | IWM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.72% | -59.05% | +24.33% |
Max Drawdown (1Y)Largest decline over 1 year | -13.95% | -11.03% | -2.92% |
Max Drawdown (3Y)Largest decline over 3 years | -24.05% | -27.50% | +3.45% |
Max Drawdown (5Y)Largest decline over 5 years | — | -31.91% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -41.13% | — |
Current DrawdownCurrent decline from peak | -4.06% | -0.96% | -3.10% |
Average DrawdownAverage peak-to-trough decline | -14.57% | -10.75% | -3.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.40% | 3.11% | +1.29% |
Volatility
TMFX vs. IWM - Volatility Comparison
The current volatility for Motley Fool Next Index ETF (TMFX) is 5.40%, while iShares Russell 2000 ETF (IWM) has a volatility of 6.56%. This indicates that TMFX experiences smaller price fluctuations and is considered to be less risky 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
| TMFX | IWM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.40% | 6.56% | -1.16% |
Volatility (6M)Calculated over the trailing 6-month period | 12.80% | 14.31% | -1.51% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.13% | 19.74% | -2.61% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.33% | 22.61% | +0.72% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.33% | 23.06% | +0.27% |
TMFX vs. IWM - Expense Ratio Comparison
TMFX has a 0.50% expense ratio, which is higher than IWM's 0.19% expense ratio.
Dividends
TMFX vs. IWM - Dividend Comparison
TMFX's dividend yield for the trailing twelve months is around 0.05%, less than IWM's 0.90% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IWM iShares Russell 2000 ETF | 0.90% | 1.04% | 1.15% | 1.35% | 1.48% | 0.94% | 1.04% | 1.26% | 1.40% | 1.26% | 1.38% | 1.54% |
TMFX Motley Fool Next Index ETF | 0.05% | 0.05% | 0.06% | 0.16% | 0.22% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
TMFX and IWM have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IWM has higher volatility (6.56%) compared to TMFX (5.40%). In terms of maximum drawdown, TMFX dropped -34.72% vs IWM's -59.05%.
On 3-year performance, IWM leads with 19.22% vs 12.37% for TMFX. On fees, IWM is cheaper at 0.19% per year. On volatility, TMFX has been the lower-risk option at 5.40%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, IWM has performed better with a 19.22% return vs 12.37%. 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 0.50% for TMFX.
IWM has the higher dividend yield at 0.90%, compared with 0.05% for TMFX.
TMFX is categorized as Mid Cap Growth Equities, while IWM is Small Cap Blend Equities. TMFX tracks Motley Fool Next Index, while IWM tracks Russell 2000 Index. They also come from different issuers: Motley Fool and iShares. Their fees differ too: 0.50% for TMFX and 0.19% for IWM.
IWM currently has the higher Sharpe Ratio (2.08 vs 0.60), 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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