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PDRDX vs. VCPIX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

PDRDX vs. VCPIX

Last updated Jun 13, 2026

PDRDX (Principal Diversified Real Asset Fund) and VCPIX (Vanguard Core-Plus Bond Fund Investor Shares) are both mutual funds - PDRDX is a Global Allocation fund managed by Principal, while VCPIX is a Total Bond Market fund managed by Vanguard. Over the past 3 years, PDRDX returned 10.82%/yr vs 5.30%/yr for VCPIX. At a 0.34 correlation, their price movements are largely independent. PDRDX charges 0.83%/yr vs 0.30%/yr for VCPIX.

Performance

PDRDX vs. VCPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal Diversified Real Asset Fund (PDRDX) and Vanguard Core-Plus Bond Fund Investor Shares (VCPIX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, PDRDX achieves a 11.44% return, which is significantly higher than VCPIX's 0.73% 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%

VCPIX

1D
0.47%
1M
0.51%
YTD
0.73%
6M
1.25%
1Y
5.54%
3Y*
5.30%
5Y*
—
10Y*
—
*Multi-year figures are annualized to reflect compound growth (CAGR)

PDRDX vs. VCPIX - Yearly Performance Comparison

2026 (YTD)20252024202320222021
PDRDX
Principal Diversified Real Asset Fund		11.44%14.63%3.09%3.22%-6.19%2.01%
VCPIX
Vanguard Core-Plus Bond Fund Investor Shares		0.73%8.01%2.83%6.64%-12.68%0.35%

Correlation

The correlation between PDRDX and VCPIX is 0.33, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.33

Correlation (3Y)
Calculated over the trailing 3-year period

0.40

Correlation (All Time)
Calculated using the full available price history since Oct 14, 2021

0.34

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Principal Diversified Real Asset Fund

Vanguard Core-Plus Bond Fund Investor Shares

Often compared with PDRDX:
PDRDX vs. EQPGXPDRDX vs. VTHRXPDRDX vs. VWOPDRDX vs. VOOPDRDX vs. FESGXPDRDX vs. TRXAXPDRDX vs. HGLB
Often compared with VCPIX:
VCPIX vs. VCORXVCPIX vs. DODIXVCPIX vs. VBTLXVCPIX vs. USIBXVCPIX vs. ABNFXVCPIX vs. FLDRVCPIX vs. TRBUX

Return for Risk

PDRDX vs. VCPIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
PDRDX
PDRDX Risk / Return Rank: 7979
Overall Rank
PDRDX Sharpe Ratio Rank: 7676
Sharpe Ratio Rank
PDRDX Sortino Ratio Rank: 7373
Sortino Ratio Rank
PDRDX Omega Ratio Rank: 7474
Omega Ratio Rank
PDRDX Calmar Ratio Rank: 8484
Calmar Ratio Rank
PDRDX Martin Ratio Rank: 8787
Martin Ratio Rank
VCPIX
VCPIX Risk / Return Rank: 4444
Overall Rank
VCPIX Sharpe Ratio Rank: 4646
Sharpe Ratio Rank
VCPIX Sortino Ratio Rank: 5151
Sortino Ratio Rank
VCPIX Omega Ratio Rank: 4646
Omega Ratio Rank
VCPIX Calmar Ratio Rank: 4242
Calmar Ratio Rank
VCPIX Martin Ratio Rank: 3535
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

PDRDX vs. VCPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal Diversified Real Asset Fund (PDRDX) and Vanguard Core-Plus Bond Fund Investor Shares (VCPIX). 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.

PDRDXVCPIXDifference
Sharpe ratioReturn per unit of total volatility
2.13
1.58

+0.55

Sortino ratioReturn per unit of downside risk
2.92
2.36

+0.56

Omega ratioGain probability vs. loss probability

1.39

1.29

+0.10

Calmar ratioReturn relative to maximum drawdown

3.38

2.05

+1.33

Martin ratioReturn relative to average drawdown

13.83

6.44

+7.39

PDRDX vs. VCPIX - Sharpe Ratio Comparison

The current PDRDX Sharpe Ratio is 2.13, which is higher than the VCPIX Sharpe Ratio of 1.58. The chart below compares the historical Sharpe Ratios of PDRDX and VCPIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

PDRDX vs. VCPIX - Drawdown Comparison

The maximum PDRDX drawdown since its inception was -28.55%, which is greater than VCPIX's maximum drawdown of -17.33%. Use the drawdown chart below to compare losses from any high point for PDRDX and VCPIX.

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Drawdown Indicators

PDRDXVCPIXDifference

Max Drawdown

Largest peak-to-trough decline

-28.55%

-17.33%

-11.22%

Max Drawdown (1Y)

Largest decline over 1 year

-5.88%

-2.72%

-3.16%

Max Drawdown (3Y)

Largest decline over 3 years

-10.94%

-5.68%

-5.26%

Max Drawdown (5Y)

Largest decline over 5 years

-19.35%

—

—

Max Drawdown (10Y)

Largest decline over 10 years

-28.55%

—

—

Current Drawdown

Current decline from peak

-2.93%

-1.01%

-1.92%

Average Drawdown

Average peak-to-trough decline

-5.97%

-6.56%

+0.59%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.43%

0.86%

+0.57%

Volatility

PDRDX vs. VCPIX - Volatility Comparison

Principal Diversified Real Asset Fund (PDRDX) has a higher volatility of 2.94% compared to Vanguard Core-Plus Bond Fund Investor Shares (VCPIX) at 1.22%. This indicates that PDRDX's price experiences larger fluctuations and is considered to be riskier than VCPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

PDRDXVCPIXDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.94%

1.22%

+1.72%

Volatility (6M)

Calculated over the trailing 6-month period

7.83%

2.66%

+5.17%

Volatility (1Y)

Calculated over the trailing 1-year period

9.31%

3.52%

+5.79%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

11.02%

5.68%

+5.34%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

10.81%

5.68%

+5.13%

PDRDX vs. VCPIX - Expense Ratio Comparison

PDRDX has a 0.83% expense ratio, which is higher than VCPIX's 0.30% expense ratio.

Dividends

PDRDX vs. VCPIX - Dividend Comparison

PDRDX's dividend yield for the trailing twelve months is around 3.85%, less than VCPIX's 4.74% yield.

PositionTTM20252024202320222021202020192018201720162015
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%
VCPIX
Vanguard Core-Plus Bond Fund Investor Shares		4.74%4.76%5.08%4.46%3.15%0.25%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

PDRDX and VCPIX have a correlation of 0.33, 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 VCPIX (1.22%). In terms of maximum drawdown, PDRDX dropped -28.55% vs VCPIX's -17.33%.

PDRDX currently has the higher Sharpe Ratio (2.13 vs 1.58), 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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