SOAIX vs. VLMIX

Last updated Jul 14, 2026

SOAIX (Spirit of America Income Fund) and VLMIX (Vanguard Long-Term Investment-Grade Fund Investor Shares) are both Long-Term Bond funds. Over the past 5 years, SOAIX returned 1.27%/yr vs 6.00%/yr for VLMIX. At a 0.35 correlation, their price movements are largely independent. SOAIX charges 1.12%/yr vs 0.20%/yr for VLMIX.

Performance

SOAIX vs. VLMIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Spirit of America Income Fund (SOAIX) and Vanguard Long-Term Investment-Grade Fund Investor Shares (VLMIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SOAIX achieves a 0.90% return, which is significantly lower than VLMIX's 1.52% return.

SOAIX

• 1D: 0.00%
• 1M: -0.29%
• 6M: 0.11%
• YTD: 0.90%
• 1Y: 5.03%
• 3Y*: 5.58%
• 5Y*: 1.27%
• 10Y*: 3.04%

VLMIX

• 1D: 0.20%
• 1M: 1.16%
• 6M: -1.78%
• YTD: 1.52%
• 1Y: 0.71%
• 3Y*: 6.56%
• 5Y*: 6.00%
• 10Y*: —

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

SOAIX vs. VLMIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SOAIX Spirit of America Income Fund	0.90%	6.50%	5.37%	6.91%	-12.68%	4.59%	5.96%	11.66%	-0.83%	2.50%
VLMIX Vanguard Long-Term Investment-Grade Fund Investor Shares	1.52%	1.01%	7.83%	22.39%	-9.40%	20.12%	20.25%	35.69%	4.91%	7.31%

Correlation

The correlation between SOAIX and VLMIX is 0.44, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.44
Correlation (3Y) Calculated over the trailing 3-year period	0.39
Correlation (5Y) Calculated over the trailing 5-year period	0.42
Correlation (All Time) Calculated using the full available price history since Aug 23, 2017	0.35

Return for Risk

SOAIX vs. VLMIX — Risk / Return Rank

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

SOAIX

SOAIX Risk / Return Rank: 27
SOAIX Sharpe Ratio Rank: 29
SOAIX Sortino Ratio Rank: 30
SOAIX Omega Ratio Rank: 28
SOAIX Calmar Ratio Rank: 26
SOAIX Martin Ratio Rank: 20

VLMIX

VLMIX Risk / Return Rank: 3
VLMIX Sharpe Ratio Rank: 3
VLMIX Sortino Ratio Rank: 3
VLMIX Omega Ratio Rank: 3
VLMIX Calmar Ratio Rank: 3
VLMIX Martin Ratio Rank: 3

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.

SOAIX vs. VLMIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Spirit of America Income Fund (SOAIX) and Vanguard Long-Term Investment-Grade Fund Investor Shares (VLMIX). 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	VLMIX	Difference
Sharpe ratio: Return per unit of total volatility	1.17	-0.01	+1.18
Sortino ratio: Return per unit of downside risk	1.70	0.09	+1.62
Omega ratio: Gain probability vs. loss probability	1.21	1.01	+0.20
Calmar ratio: Return relative to maximum drawdown	1.43	-0.01	+1.44
Martin ratio: Return relative to average drawdown	3.63	-0.03	+3.66

SOAIX vs. VLMIX - Sharpe Ratio Comparison

The current SOAIX Sharpe Ratio is 1.17, which is higher than the VLMIX Sharpe Ratio of -0.01. The chart below compares the historical Sharpe Ratios of SOAIX and VLMIX, 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

SOAIX vs. VLMIX - Drawdown Comparison

The maximum SOAIX drawdown since its inception was -16.76%, smaller than the maximum VLMIX drawdown of -35.47%. Use the drawdown chart below to compare losses from any high point for SOAIX and VLMIX.

Drawdown Indicators

	SOAIX	VLMIX	Difference
Max Drawdown Largest peak-to-trough decline	-16.76%	-35.47%	+18.71%
Max Drawdown (1Y) Largest decline over 1 year	-3.16%	-11.77%	+8.61%
Max Drawdown (3Y) Largest decline over 3 years	-6.57%	-17.59%	+11.02%
Max Drawdown (5Y) Largest decline over 5 years	-16.76%	-21.85%	+5.09%
Max Drawdown (10Y) Largest decline over 10 years	-16.76%	—	—
Current Drawdown Current decline from peak	-2.06%	-5.83%	+3.77%
Average Drawdown Average peak-to-trough decline	-3.09%	-4.83%	+1.74%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.25%	4.29%	-3.04%

Volatility

SOAIX vs. VLMIX - Volatility Comparison

The current volatility for Spirit of America Income Fund (SOAIX) is 1.10%, while Vanguard Long-Term Investment-Grade Fund Investor Shares (VLMIX) has a volatility of 2.91%. This indicates that SOAIX experiences smaller price fluctuations and is considered to be less risky than VLMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SOAIX	VLMIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.10%	2.91%	-1.81%
Volatility (6M) Calculated over the trailing 6-month period	2.86%	10.09%	-7.23%
Volatility (1Y) Calculated over the trailing 1-year period	3.87%	13.51%	-9.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.04%	16.87%	-10.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.46%	18.63%	-13.17%

SOAIX vs. VLMIX - Expense Ratio Comparison

SOAIX has a 1.12% expense ratio, which is higher than VLMIX's 0.20% expense ratio.

Dividends

SOAIX vs. VLMIX - Dividend Comparison

SOAIX's dividend yield for the trailing twelve months is around 6.77%, more than VLMIX's 2.10% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SOAIX Spirit of America Income Fund	6.77%	6.57%	5.41%	6.09%	8.05%	4.93%	3.79%	4.27%	4.71%	4.36%	4.42%	4.74%
VLMIX Vanguard Long-Term Investment-Grade Fund Investor Shares	2.10%	2.14%	1.21%	0.22%	7.46%	8.18%	8.10%	1.63%	5.11%	1.61%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SOAIX and VLMIX in my portfolio?

SOAIX and VLMIX have a correlation of 0.44, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SOAIX or VLMIX?

VLMIX has higher volatility (2.91%) compared to SOAIX (1.10%). In terms of maximum drawdown, SOAIX dropped -16.76% vs VLMIX's -35.47%.

Which has better risk-adjusted returns?

SOAIX currently has the higher Sharpe Ratio (1.17 vs -0.01), 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.