MURLX vs. MURNX

Last updated Jun 4, 2026

MURLX (Mutual of America 2040 Retirement Fund) and MURNX (Mutual of America Investment Corporation - 2050 Retirement Fund) are both Target Retirement Date funds from Mutual of America. Over the past 5 years, MURLX returned 7.64%/yr vs 8.39%/yr for MURNX. With a 0.98 correlation, they move nearly in lockstep. Both charge a 0.08% expense ratio.

Performance

MURLX vs. MURNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mutual of America 2040 Retirement Fund (MURLX) and Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MURLX achieves a 8.57% return, which is significantly lower than MURNX's 9.89% return.

MURLX

• 1D: 0.30%
• 1M: 3.75%
• YTD: 8.57%
• 6M: 9.09%
• 1Y: 21.57%
• 3Y*: 15.43%
• 5Y*: 7.64%
• 10Y*: —

MURNX

• 1D: 0.37%
• 1M: 4.18%
• YTD: 9.89%
• 6M: 10.36%
• 1Y: 23.87%
• 3Y*: 16.68%
• 5Y*: 8.39%
• 10Y*: —

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

MURLX vs. MURNX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MURLX Mutual of America 2040 Retirement Fund	8.57%	17.01%	13.28%	14.86%	-15.95%	16.84%	889.04%
MURNX Mutual of America Investment Corporation - 2050 Retirement Fund	9.89%	17.89%	14.37%	15.78%	-16.25%	17.85%	918.18%

Correlation

The correlation between MURLX and MURNX is 1.00 - 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	1.00
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (All Time) Calculated using the full available price history since Jan 3, 2020	0.98

The correlation between MURLX and MURNX has been stable across timeframes, ranging from 0.98 to 1.00 - a consistent structural relationship.

Return for Risk

MURLX vs. MURNX — Risk / Return Rank

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

MURLX

MURLX Risk / Return Rank: 67
MURLX Sharpe Ratio Rank: 63
MURLX Sortino Ratio Rank: 68
MURLX Omega Ratio Rank: 59
MURLX Calmar Ratio Rank: 68
MURLX Martin Ratio Rank: 79

MURNX

MURNX Risk / Return Rank: 68
MURNX Sharpe Ratio Rank: 63
MURNX Sortino Ratio Rank: 67
MURNX Omega Ratio Rank: 59
MURNX Calmar Ratio Rank: 68
MURNX Martin Ratio Rank: 81

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.

MURLX vs. MURNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America 2040 Retirement Fund (MURLX) and Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX). 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.

	MURLX	MURNX	Difference
Sharpe ratio: Return per unit of total volatility	2.34	2.33	+0.01
Sortino ratio: Return per unit of downside risk	3.47	3.42	+0.04
Omega ratio: Gain probability vs. loss probability	1.43	1.43	0.00
Calmar ratio: Return relative to maximum drawdown	3.17	3.21	-0.04
Martin ratio: Return relative to average drawdown	14.86	15.18	-0.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MURLX vs. MURNX - Sharpe Ratio Comparison

The current MURLX Sharpe Ratio is 2.34, which is comparable to the MURNX Sharpe Ratio of 2.33. The chart below compares the historical Sharpe Ratios of MURLX and MURNX, 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

	MURLX	MURNX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.34	2.33	+0.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.54	0.55	-0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.17	-0.01

Drawdowns

MURLX vs. MURNX - Drawdown Comparison

The maximum MURLX drawdown since its inception was -31.54%, roughly equal to the maximum MURNX drawdown of -32.96%. Use the drawdown chart below to compare losses from any high point for MURLX and MURNX.

Drawdown Indicators

	MURLX	MURNX	Difference
Max Drawdown Largest peak-to-trough decline	-31.54%	-32.96%	+1.42%
Max Drawdown (1Y) Largest decline over 1 year	-7.75%	-8.50%	+0.75%
Max Drawdown (3Y) Largest decline over 3 years	-13.69%	-15.36%	+1.67%
Max Drawdown (5Y) Largest decline over 5 years	-23.06%	-23.75%	+0.69%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.41%	-5.50%	+0.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.58%	1.72%	-0.14%

Volatility

MURLX vs. MURNX - Volatility Comparison

The current volatility for Mutual of America 2040 Retirement Fund (MURLX) is 2.98%, while Mutual of America Investment Corporation - 2050 Retirement Fund (MURNX) has a volatility of 3.27%. This indicates that MURLX experiences smaller price fluctuations and is considered to be less risky than MURNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MURLX	MURNX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.98%	3.27%	-0.29%
Volatility (6M) Calculated over the trailing 6-month period	8.46%	9.43%	-0.97%
Volatility (1Y) Calculated over the trailing 1-year period	10.51%	11.70%	-1.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.02%	17.22%	-1.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	382.12%	381.80%	+0.32%

MURLX vs. MURNX - Expense Ratio Comparison

Both MURLX and MURNX have an expense ratio of 0.08%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

MURLX vs. MURNX - Dividend Comparison

MURLX's dividend yield for the trailing twelve months is around 7.94%, less than MURNX's 8.47% yield.

Position	TTM	2025	2024	2023	2022	2021
MURLX Mutual of America 2040 Retirement Fund	7.94%	8.62%	8.02%	3.04%	11.39%	4.17%
MURNX Mutual of America Investment Corporation - 2050 Retirement Fund	8.47%	9.30%	6.49%	3.56%	11.26%	3.72%

Frequently Asked Questions

Can I hold both MURLX and MURNX in my portfolio?

With a correlation of 1.00, MURLX and MURNX 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, MURLX or MURNX?

MURNX has higher volatility (3.27%) compared to MURLX (2.98%). In terms of maximum drawdown, MURLX dropped -31.54% vs MURNX's -32.96%.

Which has better risk-adjusted returns?

MURLX currently has the higher Sharpe Ratio (2.34 vs 2.33), 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.