SOAIX vs. RPLCX
SOAIX (Spirit of America Income Fund) and RPLCX (T. Rowe Price Institutional Long Duration Credit Fund) are both Long-Term Bond funds. Over the past 10 years, SOAIX returned 3.29%/yr vs 2.30%/yr for RPLCX. A 0.78 correlation means they provide meaningful diversification when combined. SOAIX charges 1.12%/yr vs 0.45%/yr for RPLCX.
Performance
SOAIX vs. RPLCX - Performance Comparison
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Returns By Period
In the year-to-date period, SOAIX achieves a 1.60% return, which is significantly higher than RPLCX's 1.31% return. Over the past 10 years, SOAIX has outperformed RPLCX with an annualized return of 3.29%, while RPLCX has yielded a comparatively lower 2.30% annualized return.
SOAIX
- 1D
- 0.40%
- 1M
- 1.27%
- YTD
- 1.60%
- 6M
- 2.12%
- 1Y
- 6.64%
- 3Y*
- 5.81%
- 5Y*
- 1.56%
- 10Y*
- 3.29%
RPLCX
- 1D
- 0.27%
- 1M
- 2.51%
- YTD
- 1.31%
- 6M
- 2.05%
- 1Y
- 7.76%
- 3Y*
- 4.00%
- 5Y*
- -2.85%
- 10Y*
- 2.30%
SOAIX vs. RPLCX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SOAIX Spirit of America Income Fund | 1.60% | 6.50% | 5.37% | 6.91% | -12.68% | 4.59% | 5.96% | 11.66% | -0.83% | 7.53% |
RPLCX T. Rowe Price Institutional Long Duration Credit Fund | 1.31% | 7.65% | -1.84% | 9.05% | -27.00% | -0.19% | 16.73% | 23.72% | -6.27% | 11.03% |
Correlation
The correlation between SOAIX and RPLCX is 0.80, 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 | 0.80 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.86 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.81 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2014 | 0.78 |
The correlation between SOAIX and RPLCX has been stable across timeframes, ranging from 0.77 to 0.86 - a consistent structural relationship.
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Return for Risk
SOAIX vs. RPLCX — Risk / Return Rank
SOAIX
RPLCX
SOAIX vs. RPLCX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Spirit of America Income Fund (SOAIX) and T. Rowe Price Institutional Long Duration Credit Fund (RPLCX). 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.
| SOAIX | RPLCX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.76 | ||
| Sortino ratioReturn per unit of downside risk | +1.06 | ||
| Omega ratioGain probability vs. loss probability | 1.32 | 1.18 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 2.15 | 1.47 | +0.67 |
| Martin ratioReturn relative to average drawdown | 5.70 | 4.01 | +1.69 |
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Drawdowns
SOAIX vs. RPLCX - Drawdown Comparison
The maximum SOAIX drawdown since its inception was -16.76%, smaller than the maximum RPLCX drawdown of -35.21%. Use the drawdown chart below to compare losses from any high point for SOAIX and RPLCX.
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Drawdown Indicators
| SOAIX | RPLCX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.76% | -35.21% | +18.45% |
Max Drawdown (1Y)Largest decline over 1 year | -3.16% | -5.19% | +2.03% |
Max Drawdown (3Y)Largest decline over 3 years | -6.76% | -13.32% | +6.56% |
Max Drawdown (5Y)Largest decline over 5 years | -16.76% | -35.21% | +18.45% |
Max Drawdown (10Y)Largest decline over 10 years | -16.76% | -35.21% | +18.45% |
Current DrawdownCurrent decline from peak | -1.39% | -16.42% | +15.03% |
Average DrawdownAverage peak-to-trough decline | -3.09% | -10.15% | +7.06% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.19% | 1.90% | -0.71% |
Volatility
SOAIX vs. RPLCX - Volatility Comparison
The current volatility for Spirit of America Income Fund (SOAIX) is 1.09%, while T. Rowe Price Institutional Long Duration Credit Fund (RPLCX) has a volatility of 2.19%. This indicates that SOAIX experiences smaller price fluctuations and is considered to be less risky than RPLCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SOAIX | RPLCX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.09% | 2.19% | -1.10% |
Volatility (6M)Calculated over the trailing 6-month period | 2.85% | 5.68% | -2.83% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.88% | 7.72% | -3.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.03% | 11.63% | -5.60% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.47% | 10.60% | -5.13% |
SOAIX vs. RPLCX - Expense Ratio Comparison
SOAIX has a 1.12% expense ratio, which is higher than RPLCX's 0.45% expense ratio.
Dividends
SOAIX vs. RPLCX - Dividend Comparison
SOAIX's dividend yield for the trailing twelve months is around 6.61%, more than RPLCX's 5.33% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
RPLCX T. Rowe Price Institutional Long Duration Credit Fund | 5.33% | 5.32% | 5.17% | 4.15% | 3.54% | 6.09% | 7.16% | 13.58% | 4.33% | 4.07% | 3.79% | 4.70% |
SOAIX Spirit of America Income Fund | 6.61% | 6.57% | 5.41% | 6.09% | 8.05% | 4.93% | 3.79% | 4.27% | 4.71% | 4.36% | 4.42% | 4.74% |
Frequently Asked Questions
SOAIX and RPLCX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
RPLCX has higher volatility (2.19%) compared to SOAIX (1.09%). In terms of maximum drawdown, SOAIX dropped -16.76% vs RPLCX's -35.21%.
SOAIX currently has the higher Sharpe Ratio (1.75 vs 0.99), 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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