SMMD vs. PDRDX
SMMD (iShares Russell 2500 ETF) and PDRDX (Principal Diversified Real Asset Fund) are both funds - SMMD is a Small Cap Growth Equities fund tracking the Russell 2500 Index, while PDRDX is a Global Allocation fund managed by Principal. Over the past 5 years, SMMD returned 7.65%/yr vs 5.81%/yr for PDRDX. A 0.70 correlation means they provide meaningful diversification when combined. SMMD charges 0.15%/yr vs 0.83%/yr for PDRDX.
Performance
SMMD vs. PDRDX - Performance Comparison
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Returns By Period
In the year-to-date period, SMMD achieves a 20.07% return, which is significantly higher than PDRDX's 11.44% return.
SMMD
- 1D
- 0.98%
- 1M
- 3.73%
- YTD
- 20.07%
- 6M
- 17.82%
- 1Y
- 38.70%
- 3Y*
- 17.74%
- 5Y*
- 7.65%
- 10Y*
- —
PDRDX
- 1D
- 0.74%
- 1M
- -2.51%
- YTD
- 11.44%
- 6M
- 12.28%
- 1Y
- 19.27%
- 3Y*
- 10.82%
- 5Y*
- 5.81%
- 10Y*
- 6.35%
SMMD vs. PDRDX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SMMD iShares Russell 2500 ETF | 20.07% | 11.72% | 11.87% | 17.71% | -18.53% | 18.30% | 19.98% | 28.01% | -10.58% | 11.27% |
PDRDX Principal Diversified Real Asset Fund | 11.44% | 14.63% | 3.09% | 3.22% | -6.19% | 17.30% | 3.97% | 15.02% | -7.90% | 6.25% |
Correlation
The correlation between SMMD and PDRDX is 0.56, 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 | 0.56 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.67 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.71 |
Correlation (All Time) Calculated using the full available price history since Jul 7, 2017 | 0.70 |
The correlation between SMMD and PDRDX shifts across timeframes, from 0.56 (1 year) to 0.71 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
SMMD vs. PDRDX — Risk / Return Rank
SMMD
PDRDX
SMMD vs. PDRDX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2500 ETF (SMMD) and Principal Diversified Real Asset Fund (PDRDX). 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.
| SMMD | PDRDX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.07 | ||
| Sortino ratioReturn per unit of downside risk | -0.06 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 1.39 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 3.78 | 3.38 | +0.40 |
| Martin ratioReturn relative to average drawdown | 14.33 | 13.83 | +0.51 |
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Drawdowns
SMMD vs. PDRDX - Drawdown Comparison
The maximum SMMD drawdown since its inception was -41.06%, which is greater than PDRDX's maximum drawdown of -28.55%. Use the drawdown chart below to compare losses from any high point for SMMD and PDRDX.
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Drawdown Indicators
| SMMD | PDRDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -41.06% | -28.55% | -12.51% |
Max Drawdown (1Y)Largest decline over 1 year | -9.66% | -5.88% | -3.78% |
Max Drawdown (3Y)Largest decline over 3 years | -25.50% | -10.94% | -14.56% |
Max Drawdown (5Y)Largest decline over 5 years | -28.26% | -19.35% | -8.91% |
Max Drawdown (10Y)Largest decline over 10 years | — | -28.55% | — |
Current DrawdownCurrent decline from peak | 0.00% | -2.93% | +2.93% |
Average DrawdownAverage peak-to-trough decline | -8.35% | -5.97% | -2.38% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.55% | 1.43% | +1.12% |
Volatility
SMMD vs. PDRDX - Volatility Comparison
iShares Russell 2500 ETF (SMMD) has a higher volatility of 6.26% compared to Principal Diversified Real Asset Fund (PDRDX) at 2.94%. This indicates that SMMD's price experiences larger fluctuations and is considered to be riskier than PDRDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SMMD | PDRDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.26% | 2.94% | +3.32% |
Volatility (6M)Calculated over the trailing 6-month period | 13.30% | 7.83% | +5.47% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.74% | 9.31% | +8.43% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.91% | 11.02% | +9.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.38% | 10.81% | +11.57% |
SMMD vs. PDRDX - Expense Ratio Comparison
SMMD has a 0.15% expense ratio, which is lower than PDRDX's 0.83% expense ratio.
Dividends
SMMD vs. PDRDX - Dividend Comparison
SMMD's dividend yield for the trailing twelve months is around 1.04%, less than PDRDX's 3.85% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PDRDX Principal Diversified Real Asset Fund | 3.85% | 4.19% | 2.43% | 2.52% | 12.88% | 6.56% | 0.52% | 2.36% | 3.47% | 2.21% | 2.61% | 0.99% |
SMMD iShares Russell 2500 ETF | 1.04% | 1.28% | 1.27% | 1.44% | 1.79% | 1.12% | 1.31% | 1.50% | 2.45% | 0.68% | 0.00% | 0.00% |
Frequently Asked Questions
SMMD and PDRDX have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SMMD has higher volatility (6.26%) compared to PDRDX (2.94%). In terms of maximum drawdown, SMMD dropped -41.06% vs PDRDX's -28.55%.
PDRDX currently has the higher Sharpe Ratio (2.13 vs 2.06), 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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