PDRDX vs. WFBIX
PDRDX (Principal Diversified Real Asset Fund) and WFBIX (iShares U.S. Aggregate Bond Index Fund) are both mutual funds - PDRDX is a Global Allocation fund managed by Principal, while WFBIX is a Intermediate Core Bond fund managed by BlackRock. Over the past 10 years, PDRDX returned 6.35%/yr vs 1.91%/yr for WFBIX. At a 0.03 correlation, their price movements are largely independent. PDRDX charges 0.83%/yr vs 0.05%/yr for WFBIX.
Performance
PDRDX vs. WFBIX - Performance Comparison
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Returns By Period
In the year-to-date period, PDRDX achieves a 11.44% return, which is significantly higher than WFBIX's 0.43% return. Over the past 10 years, PDRDX has outperformed WFBIX with an annualized return of 6.35%, while WFBIX has yielded a comparatively lower 1.91% annualized 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%
WFBIX
- 1D
- 0.55%
- 1M
- 0.56%
- YTD
- 0.43%
- 6M
- 0.98%
- 1Y
- 4.88%
- 3Y*
- 5.33%
- 5Y*
- 0.82%
- 10Y*
- 1.91%
PDRDX vs. WFBIX - 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% | 10.18% |
WFBIX iShares U.S. Aggregate Bond Index Fund | 0.43% | 7.16% | 1.43% | 9.65% | -13.03% | -1.79% | 7.40% | 8.72% | -0.08% | 3.39% |
Correlation
The correlation between PDRDX and WFBIX is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.29 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.37 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.27 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.14 |
Correlation (All Time) Calculated using the full available price history since Mar 17, 2010 | 0.03 |
Over the past year, PDRDX and WFBIX have become more correlated (0.29) than their long-term average of 0.03, meaning their price movements have been converging.
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Return for Risk
PDRDX vs. WFBIX — Risk / Return Rank
PDRDX
WFBIX
PDRDX vs. WFBIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Principal Diversified Real Asset Fund (PDRDX) and iShares U.S. Aggregate Bond Index Fund (WFBIX). 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 | WFBIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.89 | ||
| Sortino ratioReturn per unit of downside risk | +1.04 | ||
| Omega ratioGain probability vs. loss probability | 1.39 | 1.22 | +0.17 |
| Calmar ratioReturn relative to maximum drawdown | 3.38 | 1.62 | +1.75 |
| Martin ratioReturn relative to average drawdown | 13.83 | 4.66 | +9.17 |
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Drawdowns
PDRDX vs. WFBIX - Drawdown Comparison
The maximum PDRDX drawdown since its inception was -28.55%, which is greater than WFBIX's maximum drawdown of -18.68%. Use the drawdown chart below to compare losses from any high point for PDRDX and WFBIX.
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Drawdown Indicators
| PDRDX | WFBIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -28.55% | -18.68% | -9.87% |
Max Drawdown (1Y)Largest decline over 1 year | -5.88% | -3.02% | -2.86% |
Max Drawdown (3Y)Largest decline over 3 years | -10.94% | -6.09% | -4.85% |
Max Drawdown (5Y)Largest decline over 5 years | -19.35% | -17.84% | -1.51% |
Max Drawdown (10Y)Largest decline over 10 years | -28.55% | -18.68% | -9.87% |
Current DrawdownCurrent decline from peak | -2.93% | -1.50% | -1.43% |
Average DrawdownAverage peak-to-trough decline | -5.97% | -2.26% | -3.71% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.43% | 1.05% | +0.38% |
Volatility
PDRDX vs. WFBIX - Volatility Comparison
Principal Diversified Real Asset Fund (PDRDX) has a higher volatility of 2.94% compared to iShares U.S. Aggregate Bond Index Fund (WFBIX) at 1.36%. This indicates that PDRDX's price experiences larger fluctuations and is considered to be riskier than WFBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDRDX | WFBIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.94% | 1.36% | +1.58% |
Volatility (6M)Calculated over the trailing 6-month period | 7.83% | 2.88% | +4.95% |
Volatility (1Y)Calculated over the trailing 1-year period | 9.31% | 3.95% | +5.36% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 11.02% | 6.41% | +4.61% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.81% | 5.17% | +5.64% |
PDRDX vs. WFBIX - Expense Ratio Comparison
PDRDX has a 0.83% expense ratio, which is higher than WFBIX's 0.05% expense ratio.
Dividends
PDRDX vs. WFBIX - Dividend Comparison
PDRDX's dividend yield for the trailing twelve months is around 3.85%, less than WFBIX's 3.91% 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% |
WFBIX iShares U.S. Aggregate Bond Index Fund | 3.91% | 3.78% | 3.68% | 6.82% | 2.60% | 2.04% | 2.43% | 2.88% | 2.71% | 2.24% | 2.25% | 2.20% |
Frequently Asked Questions
PDRDX and WFBIX have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDRDX has higher volatility (2.94%) compared to WFBIX (1.36%). In terms of maximum drawdown, PDRDX dropped -28.55% vs WFBIX's -18.68%.
PDRDX currently has the higher Sharpe Ratio (2.13 vs 1.25), 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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