MAGKX vs. FECGX

Last updated Jun 4, 2026

MAGKX (Mutual of America Small Cap Growth Fund) and FECGX (Fidelity Small Cap Growth Index Fund) are both Small Cap Growth Equities funds. Over the past 5 years, MAGKX returned 3.93%/yr vs 6.22%/yr for FECGX. Their correlation of 0.84 suggests significant overlap in exposure. MAGKX charges 0.83%/yr vs 0.05%/yr for FECGX.

Performance

MAGKX vs. FECGX - Performance Comparison

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

Returns By Period

The year-to-date returns for both stocks are quite close, with MAGKX having a 19.05% return and FECGX slightly lower at 18.46%.

MAGKX

• 1D: 1.50%
• 1M: 4.82%
• YTD: 19.05%
• 6M: 14.63%
• 1Y: 36.03%
• 3Y*: 14.71%
• 5Y*: 3.93%
• 10Y*: —

FECGX

• 1D: 0.87%
• 1M: 5.85%
• YTD: 18.46%
• 6M: 16.79%
• 1Y: 39.39%
• 3Y*: 18.78%
• 5Y*: 6.22%
• 10Y*: —

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

MAGKX vs. FECGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MAGKX Mutual of America Small Cap Growth Fund	19.05%	8.45%	9.91%	15.22%	-28.37%	9.68%	1,092.52%
FECGX Fidelity Small Cap Growth Index Fund	18.46%	13.04%	15.26%	18.90%	-26.17%	2.83%	34.28%

Correlation

The correlation between MAGKX and FECGX is 0.82, 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	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (All Time) Calculated using the full available price history since Jan 3, 2020	0.84

The correlation between MAGKX and FECGX has been stable across timeframes, ranging from 0.82 to 0.89 - a consistent structural relationship.

Return for Risk

MAGKX vs. FECGX — Risk / Return Rank

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

MAGKX

MAGKX Risk / Return Rank: 67
MAGKX Sharpe Ratio Rank: 57
MAGKX Sortino Ratio Rank: 55
MAGKX Omega Ratio Rank: 48
MAGKX Calmar Ratio Rank: 89
MAGKX Martin Ratio Rank: 89

FECGX

FECGX Risk / Return Rank: 45
FECGX Sharpe Ratio Rank: 45
FECGX Sortino Ratio Rank: 41
FECGX Omega Ratio Rank: 37
FECGX Calmar Ratio Rank: 55
FECGX Martin Ratio Rank: 49

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. FECGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America Small Cap Growth Fund (MAGKX) and Fidelity Small Cap Growth Index Fund (FECGX). 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.

	MAGKX	FECGX	Difference
Sharpe ratio: Return per unit of total volatility	2.22	1.96	+0.26
Sortino ratio: Return per unit of downside risk	3.15	2.68	+0.46
Omega ratio: Gain probability vs. loss probability	1.38	1.32	+0.06
Calmar ratio: Return relative to maximum drawdown	4.46	2.83	+1.63
Martin ratio: Return relative to average drawdown	17.40	10.20	+7.20
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MAGKX vs. FECGX - Sharpe Ratio Comparison

The current MAGKX Sharpe Ratio is 2.22, which is comparable to the FECGX Sharpe Ratio of 1.96. The chart below compares the historical Sharpe Ratios of MAGKX and FECGX, 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

	MAGKX	FECGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.22	1.96	+0.26
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.16	0.25	-0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.39	-0.23

Drawdowns

MAGKX vs. FECGX - Drawdown Comparison

The maximum MAGKX drawdown since its inception was -41.67%, roughly equal to the maximum FECGX drawdown of -41.85%. Use the drawdown chart below to compare losses from any high point for MAGKX and FECGX.

Drawdown Indicators

	MAGKX	FECGX	Difference
Max Drawdown Largest peak-to-trough decline	-41.67%	-41.85%	+0.18%
Max Drawdown (1Y) Largest decline over 1 year	-9.81%	-14.81%	+5.00%
Max Drawdown (3Y) Largest decline over 3 years	-24.90%	-28.45%	+3.55%
Max Drawdown (5Y) Largest decline over 5 years	-41.67%	-40.34%	-1.33%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-19.89%	-15.76%	-4.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.44%	4.10%	-1.66%

Volatility

MAGKX vs. FECGX - Volatility Comparison

Mutual of America Small Cap Growth Fund (MAGKX) and Fidelity Small Cap Growth Index Fund (FECGX) have volatilities of 6.39% and 6.44%, 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	FECGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.39%	6.44%	-0.05%
Volatility (6M) Calculated over the trailing 6-month period	15.38%	15.86%	-0.48%
Volatility (1Y) Calculated over the trailing 1-year period	19.68%	21.35%	-1.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.68%	24.54%	+3.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	386.06%	27.19%	+358.87%

MAGKX vs. FECGX - Expense Ratio Comparison

MAGKX has a 0.83% expense ratio, which is higher than FECGX's 0.05% expense ratio.

Dividends

MAGKX vs. FECGX - Dividend Comparison

MAGKX's dividend yield for the trailing twelve months is around 0.79%, more than FECGX's 0.46% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
FECGX Fidelity Small Cap Growth Index Fund	0.46%	0.54%	1.25%	0.81%	0.80%	3.43%	1.00%	0.29%
MAGKX Mutual of America Small Cap Growth Fund	0.79%	0.94%	1.62%	0.00%	5.47%	17.84%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MAGKX and FECGX in my portfolio?

MAGKX and FECGX have a correlation of 0.82, 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 FECGX?

FECGX has higher volatility (6.44%) compared to MAGKX (6.39%). In terms of maximum drawdown, MAGKX dropped -41.67% vs FECGX's -41.85%.

Which has better risk-adjusted returns?

MAGKX currently has the higher Sharpe Ratio (2.22 vs 1.96), 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.