PDSYX vs. MSTGX

Last updated Jun 25, 2026

PDSYX (Principal Diversified Select Real Asset Fund) and MSTGX (Morningstar Global Income Fund) are both Global Allocation funds. Over the past 5 years, PDSYX returned 3.58%/yr vs 4.43%/yr for MSTGX. A 0.79 correlation means they provide meaningful diversification when combined. PDSYX charges 1.20%/yr vs 0.62%/yr for MSTGX.

Performance

PDSYX vs. MSTGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal Diversified Select Real Asset Fund (PDSYX) and Morningstar Global Income Fund (MSTGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PDSYX achieves a 4.56% return, which is significantly lower than MSTGX's 5.95% return.

PDSYX

• 1D: -0.07%
• 1M: -0.75%
• YTD: 4.56%
• 6M: 4.42%
• 1Y: 8.53%
• 3Y*: 6.14%
• 5Y*: 3.58%
• 10Y*: —

MSTGX

• 1D: -0.10%
• 1M: 0.01%
• YTD: 5.95%
• 6M: 5.76%
• 1Y: 10.47%
• 3Y*: 10.14%
• 5Y*: 4.43%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

PDSYX vs. MSTGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
PDSYX Principal Diversified Select Real Asset Fund	4.56%	7.90%	3.65%	2.45%	-5.36%	14.81%	2.43%	4.08%
MSTGX Morningstar Global Income Fund	5.95%	12.04%	5.36%	11.91%	-11.18%	8.46%	3.92%	6.29%

Correlation

The correlation between PDSYX and MSTGX is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.67
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (All Time) Calculated using the full available price history since Jul 11, 2019	0.79

The correlation between PDSYX and MSTGX shifts across timeframes, from 0.59 (1 year) to 0.79 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PDSYX vs. MSTGX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

PDSYX

PDSYX Risk / Return Rank: 93
PDSYX Sharpe Ratio Rank: 94
PDSYX Sortino Ratio Rank: 94
PDSYX Omega Ratio Rank: 89
PDSYX Calmar Ratio Rank: 91
PDSYX Martin Ratio Rank: 94

MSTGX

MSTGX Risk / Return Rank: 67
MSTGX Sharpe Ratio Rank: 67
MSTGX Sortino Ratio Rank: 72
MSTGX Omega Ratio Rank: 65
MSTGX Calmar Ratio Rank: 75
MSTGX Martin Ratio Rank: 54

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.

PDSYX vs. MSTGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal Diversified Select Real Asset Fund (PDSYX) and Morningstar Global Income Fund (MSTGX). 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.

	PDSYX	MSTGX	Difference
Sharpe ratio: Return per unit of total volatility	2.87	2.10	+0.77
Sortino ratio: Return per unit of downside risk	4.47	3.10	+1.37
Omega ratio: Gain probability vs. loss probability	1.58	1.39	+0.19
Calmar ratio: Return relative to maximum drawdown	4.39	3.12	+1.27
Martin ratio: Return relative to average drawdown	18.40	9.91	+8.49

PDSYX vs. MSTGX - Sharpe Ratio Comparison

The current PDSYX Sharpe Ratio is 2.87, which is higher than the MSTGX Sharpe Ratio of 2.10. The chart below compares the historical Sharpe Ratios of PDSYX and MSTGX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PDSYX vs. MSTGX - Drawdown Comparison

The maximum PDSYX drawdown since its inception was -30.01%, which is greater than MSTGX's maximum drawdown of -27.52%. Use the drawdown chart below to compare losses from any high point for PDSYX and MSTGX.

Drawdown Indicators

	PDSYX	MSTGX	Difference
Max Drawdown Largest peak-to-trough decline	-30.01%	-27.52%	-2.49%
Max Drawdown (1Y) Largest decline over 1 year	-1.98%	-4.38%	+2.40%
Max Drawdown (3Y) Largest decline over 3 years	-5.84%	-6.56%	+0.72%
Max Drawdown (5Y) Largest decline over 5 years	-10.95%	-19.64%	+8.69%
Current Drawdown Current decline from peak	-0.82%	-1.26%	+0.44%
Average Drawdown Average peak-to-trough decline	-4.32%	-4.31%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.47%	1.26%	-0.79%

Volatility

PDSYX vs. MSTGX - Volatility Comparison

The current volatility for Principal Diversified Select Real Asset Fund (PDSYX) is 0.77%, while Morningstar Global Income Fund (MSTGX) has a volatility of 1.90%. This indicates that PDSYX experiences smaller price fluctuations and is considered to be less risky than MSTGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDSYX	MSTGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.77%	1.90%	-1.13%
Volatility (6M) Calculated over the trailing 6-month period	2.36%	4.99%	-2.63%
Volatility (1Y) Calculated over the trailing 1-year period	3.03%	6.50%	-3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.28%	8.14%	-1.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.69%	10.81%	-2.12%

PDSYX vs. MSTGX - Expense Ratio Comparison

PDSYX has a 1.20% expense ratio, which is higher than MSTGX's 0.62% expense ratio.

Dividends

PDSYX vs. MSTGX - Dividend Comparison

PDSYX's dividend yield for the trailing twelve months is around 1.56%, less than MSTGX's 2.92% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
MSTGX Morningstar Global Income Fund	2.92%	2.97%	6.64%	6.32%	8.79%	10.48%	2.96%	4.11%	0.56%
PDSYX Principal Diversified Select Real Asset Fund	1.56%	1.85%	2.18%	2.06%	1.58%	7.46%	2.70%	1.21%	0.00%

Frequently Asked Questions

Can I hold both PDSYX and MSTGX in my portfolio?

PDSYX and MSTGX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PDSYX or MSTGX?

MSTGX has higher volatility (1.90%) compared to PDSYX (0.77%). In terms of maximum drawdown, PDSYX dropped -30.01% vs MSTGX's -27.52%.

Which has better risk-adjusted returns?

PDSYX currently has the higher Sharpe Ratio (2.87 vs 2.10), 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.