MAMOX vs. MAMEX

Last updated Jun 4, 2026

MAMOX (MoA Moderate Allocation Fund) and MAMEX (Mutual of America Mid-Cap Equity Index Fund) are both mutual funds - MAMOX is a Diversified Portfolio fund actively managed by Mutual of America, while MAMEX is a Mid Cap Blend Equities fund managed by Mutual of America. Over the past 5 years, MAMOX returned 5.99%/yr vs 7.22%/yr for MAMEX. Their correlation of 0.87 suggests significant overlap in exposure. MAMOX charges 0.35%/yr vs 0.16%/yr for MAMEX.

Performance

MAMOX vs. MAMEX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MoA Moderate Allocation Fund (MAMOX) and Mutual of America Mid-Cap Equity Index Fund (MAMEX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MAMOX achieves a 6.93% return, which is significantly lower than MAMEX's 14.08% return.

MAMOX

• 1D: 0.20%
• 1M: 3.17%
• YTD: 6.93%
• 6M: 7.49%
• 1Y: 18.18%
• 3Y*: 12.67%
• 5Y*: 5.99%
• 10Y*: —

MAMEX

• 1D: 0.88%
• 1M: 3.94%
• YTD: 14.08%
• 6M: 14.46%
• 1Y: 25.52%
• 3Y*: 15.21%
• 5Y*: 7.22%
• 10Y*: —

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

MAMOX vs. MAMEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MAMOX MoA Moderate Allocation Fund	6.93%	15.45%	10.12%	11.57%	-14.51%	11.46%	870.51%
MAMEX Mutual of America Mid-Cap Equity Index Fund	14.08%	7.40%	13.08%	13.99%	-13.59%	23.35%	925.33%

Correlation

The correlation between MAMOX and MAMEX is 0.83, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.83
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since Jan 3, 2020	0.87

The correlation between MAMOX and MAMEX has been stable across timeframes, ranging from 0.83 to 0.87 - a consistent structural relationship.

Return for Risk

MAMOX vs. MAMEX — Risk / Return Rank

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

MAMOX

MAMOX Risk / Return Rank: 72
MAMOX Sharpe Ratio Rank: 70
MAMOX Sortino Ratio Rank: 76
MAMOX Omega Ratio Rank: 68
MAMOX Calmar Ratio Rank: 68
MAMOX Martin Ratio Rank: 81

MAMEX

MAMEX Risk / Return Rank: 54
MAMEX Sharpe Ratio Rank: 42
MAMEX Sortino Ratio Rank: 45
MAMEX Omega Ratio Rank: 40
MAMEX Calmar Ratio Rank: 76
MAMEX Martin Ratio Rank: 68

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.

MAMOX vs. MAMEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MoA Moderate Allocation Fund (MAMOX) and Mutual of America Mid-Cap Equity Index Fund (MAMEX). 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.

	MAMOX	MAMEX	Difference
Sharpe ratio: Return per unit of total volatility	2.45	1.90	+0.56
Sortino ratio: Return per unit of downside risk	3.70	2.82	+0.88
Omega ratio: Gain probability vs. loss probability	1.46	1.34	+0.12
Calmar ratio: Return relative to maximum drawdown	3.19	3.45	-0.26
Martin ratio: Return relative to average drawdown	15.13	13.17	+1.96
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MAMOX vs. MAMEX - Sharpe Ratio Comparison

The current MAMOX Sharpe Ratio is 2.45, which is comparable to the MAMEX Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of MAMOX and MAMEX, 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

	MAMOX	MAMEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.45	1.90	+0.56
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.37	+0.15
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.17	-0.01

Drawdowns

MAMOX vs. MAMEX - Drawdown Comparison

The maximum MAMOX drawdown since its inception was -21.38%, smaller than the maximum MAMEX drawdown of -42.17%. Use the drawdown chart below to compare losses from any high point for MAMOX and MAMEX.

Drawdown Indicators

	MAMOX	MAMEX	Difference
Max Drawdown Largest peak-to-trough decline	-21.38%	-42.17%	+20.79%
Max Drawdown (1Y) Largest decline over 1 year	-6.48%	-8.84%	+2.36%
Max Drawdown (3Y) Largest decline over 3 years	-10.58%	-24.11%	+13.53%
Max Drawdown (5Y) Largest decline over 5 years	-20.05%	-24.39%	+4.34%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-4.66%	-7.50%	+2.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.31%	2.28%	-0.97%

Volatility

MAMOX vs. MAMEX - Volatility Comparison

The current volatility for MoA Moderate Allocation Fund (MAMOX) is 2.57%, while Mutual of America Mid-Cap Equity Index Fund (MAMEX) has a volatility of 4.43%. This indicates that MAMOX experiences smaller price fluctuations and is considered to be less risky than MAMEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAMOX	MAMEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.57%	4.43%	-1.86%
Volatility (6M) Calculated over the trailing 6-month period	6.87%	12.23%	-5.36%
Volatility (1Y) Calculated over the trailing 1-year period	8.42%	16.08%	-7.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.06%	22.01%	-8.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	378.92%	383.36%	-4.44%

MAMOX vs. MAMEX - Expense Ratio Comparison

MAMOX has a 0.35% expense ratio, which is higher than MAMEX's 0.16% expense ratio.

Dividends

MAMOX vs. MAMEX - Dividend Comparison

MAMOX's dividend yield for the trailing twelve months is around 9.92%, less than MAMEX's 10.39% yield.

Position	TTM	2025	2024	2023	2022	2021
MAMEX Mutual of America Mid-Cap Equity Index Fund	10.39%	11.85%	9.07%	7.67%	14.01%	12.96%
MAMOX MoA Moderate Allocation Fund	9.92%	10.61%	8.01%	3.64%	11.53%	5.32%

Frequently Asked Questions

Can I hold both MAMOX and MAMEX in my portfolio?

MAMOX and MAMEX have a correlation of 0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAMOX or MAMEX?

MAMEX has higher volatility (4.43%) compared to MAMOX (2.57%). In terms of maximum drawdown, MAMOX dropped -21.38% vs MAMEX's -42.17%.

Which has better risk-adjusted returns?

MAMOX currently has the higher Sharpe Ratio (2.45 vs 1.90), 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.