MAGKX vs. RFIMX

Last updated Jun 24, 2026

MAGKX (Mutual of America Small Cap Growth Fund) and RFIMX (Ranger Micro Cap Fund) are both Small Cap Growth Equities funds. Over the past 5 years, MAGKX returned 3.96%/yr vs 3.64%/yr for RFIMX. A 0.77 correlation means they provide meaningful diversification when combined. MAGKX charges 0.83%/yr vs 1.51%/yr for RFIMX.

Performance

MAGKX vs. RFIMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mutual of America Small Cap Growth Fund (MAGKX) and Ranger Micro Cap Fund (RFIMX). 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 RFIMX's 20.52% return.

MAGKX

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

RFIMX

• 1D: -0.34%
• 1M: 6.27%
• YTD: 20.52%
• 6M: 16.96%
• 1Y: 30.09%
• 3Y*: 9.23%
• 5Y*: 3.64%
• 10Y*: —

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

MAGKX vs. RFIMX - 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%
RFIMX Ranger Micro Cap Fund	20.52%	1.99%	11.52%	9.14%	-24.26%	30.58%	44.44%

Correlation

The correlation between MAGKX and RFIMX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (All Time) Calculated using the full available price history since Jan 2, 2020	0.77

The correlation between MAGKX and RFIMX has been stable across timeframes, ranging from 0.77 to 0.82 - a consistent structural relationship.

Return for Risk

MAGKX vs. RFIMX — 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

RFIMX

RFIMX Risk / Return Rank: 47
RFIMX Sharpe Ratio Rank: 36
RFIMX Sortino Ratio Rank: 37
RFIMX Omega Ratio Rank: 31
RFIMX Calmar Ratio Rank: 80
RFIMX Martin Ratio Rank: 51

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. RFIMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America Small Cap Growth Fund (MAGKX) and Ranger Micro Cap Fund (RFIMX). 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	RFIMX	Difference
Sharpe ratio: Return per unit of total volatility	2.25	1.62	+0.63
Sortino ratio: Return per unit of downside risk	3.15	2.37	+0.79
Omega ratio: Gain probability vs. loss probability	1.38	1.27	+0.11
Calmar ratio: Return relative to maximum drawdown	4.64	3.46	+1.18
Martin ratio: Return relative to average drawdown	18.02	9.79	+8.22

MAGKX vs. RFIMX - Sharpe Ratio Comparison

The current MAGKX Sharpe Ratio is 2.25, which is higher than the RFIMX Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of MAGKX and RFIMX, 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. RFIMX - Drawdown Comparison

The maximum MAGKX drawdown since its inception was -41.67%, smaller than the maximum RFIMX drawdown of -99.41%. Use the drawdown chart below to compare losses from any high point for MAGKX and RFIMX.

Drawdown Indicators

	MAGKX	RFIMX	Difference
Max Drawdown Largest peak-to-trough decline	-41.67%	-99.41%	+57.74%
Max Drawdown (1Y) Largest decline over 1 year	-9.81%	-9.11%	-0.70%
Max Drawdown (3Y) Largest decline over 3 years	-24.90%	-99.41%	+74.51%
Max Drawdown (5Y) Largest decline over 5 years	-41.67%	-99.41%	+57.74%
Current Drawdown Current decline from peak	0.00%	-99.09%	+99.09%
Average Drawdown Average peak-to-trough decline	-19.71%	-29.75%	+10.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.45%	3.22%	-0.77%

Volatility

MAGKX vs. RFIMX - Volatility Comparison

Mutual of America Small Cap Growth Fund (MAGKX) and Ranger Micro Cap Fund (RFIMX) have volatilities of 6.12% and 6.09%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAGKX	RFIMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.12%	6.09%	+0.03%
Volatility (6M) Calculated over the trailing 6-month period	15.53%	14.23%	+1.30%
Volatility (1Y) Calculated over the trailing 1-year period	20.27%	19.50%	+0.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.75%	5,378.52%	-5,350.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	384.20%	4,389.81%	-4,005.61%

MAGKX vs. RFIMX - Expense Ratio Comparison

MAGKX has a 0.83% expense ratio, which is lower than RFIMX's 1.51% expense ratio.

Dividends

MAGKX vs. RFIMX - Dividend Comparison

MAGKX's dividend yield for the trailing twelve months is around 0.76%, less than RFIMX's 1.10% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
MAGKX Mutual of America Small Cap Growth Fund	0.76%	0.94%	1.62%	0.00%	5.47%	17.84%	0.00%	0.00%	0.00%
RFIMX Ranger Micro Cap Fund	1.10%	1.33%	0.00%	0.77%	47.82%	71.79%	0.00%	0.00%	0.36%

Frequently Asked Questions

Can I hold both MAGKX and RFIMX in my portfolio?

MAGKX and RFIMX have a correlation of 0.80, 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 RFIMX?

MAGKX has higher volatility (6.12%) compared to RFIMX (6.09%). In terms of maximum drawdown, MAGKX dropped -41.67% vs RFIMX's -99.41%.

Which has better risk-adjusted returns?

MAGKX currently has the higher Sharpe Ratio (2.25 vs 1.62), 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.