PDRDX vs. SMMD
PDRDX (Principal Diversified Real Asset Fund) and SMMD (iShares Russell 2500 ETF) are both funds - PDRDX is a Global Allocation fund managed by Principal, while SMMD is a Small Cap Growth Equities fund tracking the Russell 2500 Index. Over the past 5 years, PDRDX returned 5.81%/yr vs 7.65%/yr for SMMD. A 0.70 correlation means they provide meaningful diversification when combined. PDRDX charges 0.83%/yr vs 0.15%/yr for SMMD.
Performance
PDRDX vs. SMMD - Performance Comparison
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Returns By Period
In the year-to-date period, PDRDX achieves a 11.44% return, which is significantly lower than SMMD's 20.07% return.
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
- 1D
- 0.98%
- 1M
- 3.73%
- YTD
- 20.07%
- 6M
- 17.82%
- 1Y
- 38.70%
- 3Y*
- 17.74%
- 5Y*
- 7.65%
- 10Y*
- —
PDRDX vs. SMMD - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
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% |
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% |
Correlation
The correlation between PDRDX and SMMD 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 PDRDX and SMMD 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
PDRDX vs. SMMD — Risk / Return Rank
PDRDX
SMMD
PDRDX vs. SMMD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Principal Diversified Real Asset Fund (PDRDX) and iShares Russell 2500 ETF (SMMD). 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.
| PDRDX | SMMD | 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 | 1.39 | 1.35 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 3.38 | 3.78 | -0.40 |
| Martin ratioReturn relative to average drawdown | 13.83 | 14.33 | -0.51 |
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Drawdowns
PDRDX vs. SMMD - Drawdown Comparison
The maximum PDRDX drawdown since its inception was -28.55%, smaller than the maximum SMMD drawdown of -41.06%. Use the drawdown chart below to compare losses from any high point for PDRDX and SMMD.
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Drawdown Indicators
| PDRDX | SMMD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -28.55% | -41.06% | +12.51% |
Max Drawdown (1Y)Largest decline over 1 year | -5.88% | -9.66% | +3.78% |
Max Drawdown (3Y)Largest decline over 3 years | -10.94% | -25.50% | +14.56% |
Max Drawdown (5Y)Largest decline over 5 years | -19.35% | -28.26% | +8.91% |
Max Drawdown (10Y)Largest decline over 10 years | -28.55% | — | — |
Current DrawdownCurrent decline from peak | -2.93% | 0.00% | -2.93% |
Average DrawdownAverage peak-to-trough decline | -5.97% | -8.35% | +2.38% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.43% | 2.55% | -1.12% |
Volatility
PDRDX vs. SMMD - Volatility Comparison
The current volatility for Principal Diversified Real Asset Fund (PDRDX) is 2.94%, while iShares Russell 2500 ETF (SMMD) has a volatility of 6.26%. This indicates that PDRDX experiences smaller price fluctuations and is considered to be less risky than SMMD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDRDX | SMMD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.94% | 6.26% | -3.32% |
Volatility (6M)Calculated over the trailing 6-month period | 7.83% | 13.30% | -5.47% |
Volatility (1Y)Calculated over the trailing 1-year period | 9.31% | 17.74% | -8.43% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 11.02% | 20.91% | -9.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.81% | 22.38% | -11.57% |
PDRDX vs. SMMD - Expense Ratio Comparison
PDRDX has a 0.83% expense ratio, which is higher than SMMD's 0.15% expense ratio.
Dividends
PDRDX vs. SMMD - Dividend Comparison
PDRDX's dividend yield for the trailing twelve months is around 3.85%, more than SMMD's 1.04% 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
PDRDX and SMMD 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, PDRDX dropped -28.55% vs SMMD's -41.06%.
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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