MURNX vs. FFFAX

Last updated Jun 5, 2026

MURNX (Mutual of America Investment Corporation - 2050 Retirement Fund) and FFFAX (Fidelity Freedom Income Fund) are both Target Retirement Date funds. Over the past 5 years, MURNX returned 8.26%/yr vs 3.14%/yr for FFFAX. A 0.59 correlation means they provide meaningful diversification when combined. MURNX charges 0.08%/yr vs 0.47%/yr for FFFAX.

Performance

MURNX vs. FFFAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX) and Fidelity Freedom Income Fund (FFFAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MURNX achieves a 9.23% return, which is significantly higher than FFFAX's 4.69% return.

MURNX

• 1D: -0.60%
• 1M: 2.62%
• YTD: 9.23%
• 6M: 9.54%
• 1Y: 23.00%
• 3Y*: 16.45%
• 5Y*: 8.26%
• 10Y*: —

FFFAX

• 1D: -0.25%
• 1M: 1.12%
• YTD: 4.69%
• 6M: 5.09%
• 1Y: 10.77%
• 3Y*: 7.99%
• 5Y*: 3.14%
• 10Y*: 4.52%

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

MURNX vs. FFFAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MURNX Mutual of America Investment Corporation - 2050 Retirement Fund	9.23%	17.89%	14.37%	15.78%	-16.25%	17.85%	918.18%
FFFAX Fidelity Freedom Income Fund	4.69%	10.42%	4.34%	8.18%	-11.33%	3.12%	8.56%

Correlation

The correlation between MURNX and FFFAX is 0.71, 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	0.71
Correlation (3Y) Calculated over the trailing 3-year period	0.67
Correlation (5Y) Calculated over the trailing 5-year period	0.58
Correlation (All Time) Calculated using the full available price history since Jan 3, 2020	0.59

The correlation between MURNX and FFFAX shifts across timeframes, from 0.58 (5 years) to 0.71 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

MURNX vs. FFFAX — Risk / Return Rank

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

MURNX

MURNX Risk / Return Rank: 65
MURNX Sharpe Ratio Rank: 59
MURNX Sortino Ratio Rank: 64
MURNX Omega Ratio Rank: 57
MURNX Calmar Ratio Rank: 66
MURNX Martin Ratio Rank: 79

FFFAX

FFFAX Risk / Return Rank: 72
FFFAX Sharpe Ratio Rank: 72
FFFAX Sortino Ratio Rank: 74
FFFAX Omega Ratio Rank: 76
FFFAX Calmar Ratio Rank: 65
FFFAX Martin Ratio Rank: 71

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.

MURNX vs. FFFAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX) and Fidelity Freedom Income Fund (FFFAX). 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.

	MURNX	FFFAX	Difference
Sharpe ratio: Return per unit of total volatility	2.22	2.48	-0.26
Sortino ratio: Return per unit of downside risk	3.27	3.63	-0.36
Omega ratio: Gain probability vs. loss probability	1.41	1.50	-0.10
Calmar ratio: Return relative to maximum drawdown	3.06	3.08	-0.02
Martin ratio: Return relative to average drawdown	14.46	13.55	+0.91
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MURNX vs. FFFAX - Sharpe Ratio Comparison

The current MURNX Sharpe Ratio is 2.22, which is comparable to the FFFAX Sharpe Ratio of 2.48. The chart below compares the historical Sharpe Ratios of MURNX and FFFAX, 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

	MURNX	FFFAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.22	2.48	-0.26
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.54	0.59	-0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.98	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.17	1.05	-0.88

Drawdowns

MURNX vs. FFFAX - Drawdown Comparison

The maximum MURNX drawdown since its inception was -32.96%, which is greater than FFFAX's maximum drawdown of -17.96%. Use the drawdown chart below to compare losses from any high point for MURNX and FFFAX.

Drawdown Indicators

	MURNX	FFFAX	Difference
Max Drawdown Largest peak-to-trough decline	-32.96%	-17.96%	-15.00%
Max Drawdown (1Y) Largest decline over 1 year	-8.50%	-3.68%	-4.82%
Max Drawdown (3Y) Largest decline over 3 years	-15.36%	-4.91%	-10.45%
Max Drawdown (5Y) Largest decline over 5 years	-23.75%	-15.87%	-7.88%
Max Drawdown (10Y) Largest decline over 10 years	—	-15.87%	—
Current Drawdown Current decline from peak	-0.60%	-0.25%	-0.35%
Average Drawdown Average peak-to-trough decline	-5.50%	-1.79%	-3.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.72%	0.83%	+0.89%

Volatility

MURNX vs. FFFAX - Volatility Comparison

Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX) has a higher volatility of 3.28% compared to Fidelity Freedom Income Fund (FFFAX) at 1.87%. This indicates that MURNX's price experiences larger fluctuations and is considered to be riskier than FFFAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MURNX	FFFAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.28%	1.87%	+1.41%
Volatility (6M) Calculated over the trailing 6-month period	9.41%	3.85%	+5.56%
Volatility (1Y) Calculated over the trailing 1-year period	11.71%	4.57%	+7.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.23%	5.37%	+11.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	381.67%	4.64%	+377.03%

MURNX vs. FFFAX - Expense Ratio Comparison

MURNX has a 0.08% expense ratio, which is lower than FFFAX's 0.47% expense ratio.

Dividends

MURNX vs. FFFAX - Dividend Comparison

MURNX's dividend yield for the trailing twelve months is around 8.52%, more than FFFAX's 2.98% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FFFAX Fidelity Freedom Income Fund	2.98%	3.29%	3.13%	2.92%	5.89%	6.12%	4.37%	3.65%	5.17%	3.74%	3.21%	3.28%
MURNX Mutual of America Investment Corporation - 2050 Retirement Fund	8.52%	9.30%	6.49%	3.56%	11.26%	3.72%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MURNX and FFFAX in my portfolio?

MURNX and FFFAX have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MURNX or FFFAX?

MURNX has higher volatility (3.28%) compared to FFFAX (1.87%). In terms of maximum drawdown, MURNX dropped -32.96% vs FFFAX's -17.96%.

Which has better risk-adjusted returns?

FFFAX currently has the higher Sharpe Ratio (2.48 vs 2.22), 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.