PRERX vs. SOAAX

Last updated Jun 5, 2026

PRERX (Principal Real Estate Securities Fund) and SOAAX (Spirit of America Real Estate Income & Growth Fund) are both REIT funds. Over the past 10 years, PRERX returned 5.89%/yr vs 5.12%/yr for SOAAX. With a 0.96 correlation, they move nearly in lockstep. PRERX charges 1.37%/yr vs 1.52%/yr for SOAAX.

Performance

PRERX vs. SOAAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal Real Estate Securities Fund (PRERX) and Spirit of America Real Estate Income & Growth Fund (SOAAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRERX achieves a 10.20% return, which is significantly lower than SOAAX's 11.64% return. Over the past 10 years, PRERX has outperformed SOAAX with an annualized return of 5.89%, while SOAAX has yielded a comparatively lower 5.12% annualized return.

PRERX

• 1D: -0.17%
• 1M: -1.24%
• YTD: 10.20%
• 6M: 9.26%
• 1Y: 8.42%
• 3Y*: 8.49%
• 5Y*: 2.58%
• 10Y*: 5.89%

SOAAX

• 1D: -0.11%
• 1M: -2.09%
• YTD: 11.64%
• 6M: 10.62%
• 1Y: 11.26%
• 3Y*: 8.59%
• 5Y*: 2.80%
• 10Y*: 5.12%

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

PRERX vs. SOAAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRERX Principal Real Estate Securities Fund	10.20%	0.69%	4.93%	12.74%	-25.59%	38.94%	-3.75%	30.47%	-4.77%	8.49%
SOAAX Spirit of America Real Estate Income & Growth Fund	11.64%	-0.90%	7.57%	9.60%	-28.40%	42.01%	-5.06%	28.09%	-6.82%	6.80%

Correlation

The correlation between PRERX and SOAAX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jan 3, 2001	0.97

The correlation between PRERX and SOAAX has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

Return for Risk

PRERX vs. SOAAX — Risk / Return Rank

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

PRERX

PRERX Risk / Return Rank: 10
PRERX Sharpe Ratio Rank: 9
PRERX Sortino Ratio Rank: 8
PRERX Omega Ratio Rank: 9
PRERX Calmar Ratio Rank: 13
PRERX Martin Ratio Rank: 11

SOAAX

SOAAX Risk / Return Rank: 14
SOAAX Sharpe Ratio Rank: 12
SOAAX Sortino Ratio Rank: 11
SOAAX Omega Ratio Rank: 12
SOAAX Calmar Ratio Rank: 18
SOAAX Martin Ratio Rank: 17

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.

PRERX vs. SOAAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal Real Estate Securities Fund (PRERX) and Spirit of America Real Estate Income & Growth Fund (SOAAX). 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.

	PRERX	SOAAX	Difference
Sharpe ratio: Return per unit of total volatility	0.69	0.90	-0.22
Sortino ratio: Return per unit of downside risk	0.99	1.27	-0.29
Omega ratio: Gain probability vs. loss probability	1.13	1.16	-0.04
Calmar ratio: Return relative to maximum drawdown	1.17	1.49	-0.33
Martin ratio: Return relative to average drawdown	3.05	4.46	-1.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PRERX vs. SOAAX - Sharpe Ratio Comparison

The current PRERX Sharpe Ratio is 0.69, which is comparable to the SOAAX Sharpe Ratio of 0.90. The chart below compares the historical Sharpe Ratios of PRERX and SOAAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PRERX	SOAAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.69	0.90	-0.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.14	0.15	-0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.30	0.26	+0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.26	+0.10

Drawdowns

PRERX vs. SOAAX - Drawdown Comparison

The maximum PRERX drawdown since its inception was -70.21%, smaller than the maximum SOAAX drawdown of -78.19%. Use the drawdown chart below to compare losses from any high point for PRERX and SOAAX.

Drawdown Indicators

	PRERX	SOAAX	Difference
Max Drawdown Largest peak-to-trough decline	-70.21%	-78.19%	+7.98%
Max Drawdown (1Y) Largest decline over 1 year	-7.46%	-7.74%	+0.28%
Max Drawdown (3Y) Largest decline over 3 years	-15.93%	-19.29%	+3.36%
Max Drawdown (5Y) Largest decline over 5 years	-31.45%	-36.03%	+4.58%
Max Drawdown (10Y) Largest decline over 10 years	-41.25%	-41.24%	-0.01%
Current Drawdown Current decline from peak	-3.32%	-6.62%	+3.30%
Average Drawdown Average peak-to-trough decline	-11.67%	-14.62%	+2.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.84%	2.59%	+0.25%

Volatility

PRERX vs. SOAAX - Volatility Comparison

Principal Real Estate Securities Fund (PRERX) and Spirit of America Real Estate Income & Growth Fund (SOAAX) have volatilities of 3.65% and 3.66%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRERX	SOAAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.65%	3.66%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	9.26%	9.13%	+0.13%
Volatility (1Y) Calculated over the trailing 1-year period	12.70%	12.79%	-0.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.37%	18.24%	+0.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.68%	19.71%	-0.03%

PRERX vs. SOAAX - Expense Ratio Comparison

PRERX has a 1.37% expense ratio, which is lower than SOAAX's 1.52% expense ratio.

Dividends

PRERX vs. SOAAX - Dividend Comparison

PRERX's dividend yield for the trailing twelve months is around 1.98%, less than SOAAX's 9.53% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRERX Principal Real Estate Securities Fund	1.98%	2.23%	3.79%	2.28%	3.07%	3.90%	2.28%	2.66%	3.78%	3.24%	4.02%	6.62%
SOAAX Spirit of America Real Estate Income & Growth Fund	9.53%	10.64%	9.53%	9.32%	9.32%	6.12%	8.13%	7.11%	8.47%	6.87%	7.18%	8.97%

Frequently Asked Questions

Can I hold both PRERX and SOAAX in my portfolio?

With a correlation of 0.95, PRERX and SOAAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, PRERX or SOAAX?

SOAAX has higher volatility (3.66%) compared to PRERX (3.65%). In terms of maximum drawdown, PRERX dropped -70.21% vs SOAAX's -78.19%.

Which has better risk-adjusted returns?

SOAAX currently has the higher Sharpe Ratio (0.90 vs 0.69), 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.