MAGKX vs. MUROX

Last updated Jun 24, 2026

MAGKX (Mutual of America Small Cap Growth Fund) and MUROX (Mutual of America 2055 Retirement Fund) are both mutual funds - MAGKX is a Small Cap Growth Equities fund managed by Mutual of America, while MUROX is a Target Retirement Date fund managed by Mutual of America. Over the past 5 years, MAGKX returned 3.96%/yr vs 8.82%/yr for MUROX. Their correlation of 0.85 suggests significant overlap in exposure. MAGKX charges 0.83%/yr vs 0.11%/yr for MUROX.

Performance

MAGKX vs. MUROX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mutual of America Small Cap Growth Fund (MAGKX) and Mutual of America 2055 Retirement Fund (MUROX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MAGKX achieves a 23.45% return, which is significantly higher than MUROX's 10.22% return.

MAGKX

• 1D: 1.16%
• 1M: 6.16%
• YTD: 23.45%
• 6M: 19.80%
• 1Y: 38.30%
• 3Y*: 15.71%
• 5Y*: 3.96%
• 10Y*: —

MUROX

• 1D: -0.06%
• 1M: 1.60%
• YTD: 10.22%
• 6M: 9.14%
• 1Y: 23.72%
• 3Y*: 17.10%
• 5Y*: 8.82%
• 10Y*: —

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

MAGKX vs. MUROX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MAGKX Mutual of America Small Cap Growth Fund	23.45%	8.45%	9.91%	15.22%	-28.37%	9.68%	1,092.52%
MUROX Mutual of America 2055 Retirement Fund	10.22%	18.33%	14.65%	15.94%	-16.52%	18.58%	943.28%

Correlation

The correlation between MAGKX and MUROX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (All Time) Calculated using the full available price history since Jan 2, 2020	0.85

The correlation between MAGKX and MUROX has been stable across timeframes, ranging from 0.84 to 0.86 - a consistent structural relationship.

Return for Risk

MAGKX vs. MUROX — Risk / Return Rank

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

MAGKX

MAGKX Risk / Return Rank: 76
MAGKX Sharpe Ratio Rank: 70
MAGKX Sortino Ratio Rank: 69
MAGKX Omega Ratio Rank: 58
MAGKX Calmar Ratio Rank: 92
MAGKX Martin Ratio Rank: 93

MUROX

MUROX Risk / Return Rank: 73
MUROX Sharpe Ratio Rank: 68
MUROX Sortino Ratio Rank: 73
MUROX Omega Ratio Rank: 65
MUROX Calmar Ratio Rank: 74
MUROX Martin Ratio Rank: 85

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.

MAGKX vs. MUROX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America Small Cap Growth Fund (MAGKX) and Mutual of America 2055 Retirement Fund (MUROX). 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.

	MAGKX	MUROX	Difference
Sharpe ratio: Return per unit of total volatility	2.25	2.22	+0.03
Sortino ratio: Return per unit of downside risk	3.15	3.26	-0.10
Omega ratio: Gain probability vs. loss probability	1.38	1.41	-0.02
Calmar ratio: Return relative to maximum drawdown	4.64	3.17	+1.47
Martin ratio: Return relative to average drawdown	18.02	14.76	+3.25

MAGKX vs. MUROX - Sharpe Ratio Comparison

The current MAGKX Sharpe Ratio is 2.25, which is comparable to the MUROX Sharpe Ratio of 2.22. The chart below compares the historical Sharpe Ratios of MAGKX and MUROX, 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

MAGKX vs. MUROX - Drawdown Comparison

The maximum MAGKX drawdown since its inception was -41.67%, which is greater than MUROX's maximum drawdown of -33.58%. Use the drawdown chart below to compare losses from any high point for MAGKX and MUROX.

Drawdown Indicators

	MAGKX	MUROX	Difference
Max Drawdown Largest peak-to-trough decline	-41.67%	-33.58%	-8.09%
Max Drawdown (1Y) Largest decline over 1 year	-9.81%	-8.77%	-1.04%
Max Drawdown (3Y) Largest decline over 3 years	-24.90%	-15.72%	-9.18%
Max Drawdown (5Y) Largest decline over 5 years	-41.67%	-23.84%	-17.83%
Current Drawdown Current decline from peak	0.00%	-0.28%	+0.28%
Average Drawdown Average peak-to-trough decline	-19.71%	-5.53%	-14.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.45%	1.81%	+0.64%

Volatility

MAGKX vs. MUROX - Volatility Comparison

Mutual of America Small Cap Growth Fund (MAGKX) has a higher volatility of 6.12% compared to Mutual of America 2055 Retirement Fund (MUROX) at 3.97%. This indicates that MAGKX's price experiences larger fluctuations and is considered to be riskier than MUROX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAGKX	MUROX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.12%	3.97%	+2.15%
Volatility (6M) Calculated over the trailing 6-month period	15.53%	9.96%	+5.57%
Volatility (1Y) Calculated over the trailing 1-year period	20.27%	12.58%	+7.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.75%	17.61%	+10.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	384.20%	377.78%	+6.42%

MAGKX vs. MUROX - Expense Ratio Comparison

MAGKX has a 0.83% expense ratio, which is higher than MUROX's 0.11% expense ratio.

Dividends

MAGKX vs. MUROX - Dividend Comparison

MAGKX's dividend yield for the trailing twelve months is around 0.76%, less than MUROX's 7.21% yield.

Position	TTM	2025	2024	2023	2022	2021
MAGKX Mutual of America Small Cap Growth Fund	0.76%	0.94%	1.62%	0.00%	5.47%	17.84%
MUROX Mutual of America 2055 Retirement Fund	7.21%	7.95%	6.25%	2.08%	10.92%	3.20%

Frequently Asked Questions

Can I hold both MAGKX and MUROX in my portfolio?

MAGKX and MUROX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAGKX or MUROX?

MAGKX has higher volatility (6.12%) compared to MUROX (3.97%). In terms of maximum drawdown, MAGKX dropped -41.67% vs MUROX's -33.58%.

Which has better risk-adjusted returns?

MAGKX currently has the higher Sharpe Ratio (2.25 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.