MACHX vs. GRSPX

Last updated Jun 4, 2026

MACHX (Mutual of America Composite Fund) and GRSPX (Greenspring Fund) are both Diversified Portfolio funds. Over the past 5 years, MACHX returned 9.50%/yr vs 10.61%/yr for GRSPX. A 0.71 correlation means they provide meaningful diversification when combined. MACHX charges 0.54%/yr vs 1.09%/yr for GRSPX.

Performance

MACHX vs. GRSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mutual of America Composite Fund (MACHX) and Greenspring Fund (GRSPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MACHX achieves a 7.78% return, which is significantly lower than GRSPX's 21.59% return.

MACHX

• 1D: 0.26%
• 1M: 3.51%
• YTD: 7.78%
• 6M: 8.31%
• 1Y: 21.95%
• 3Y*: 17.31%
• 5Y*: 9.50%
• 10Y*: —

GRSPX

• 1D: 1.23%
• 1M: 3.34%
• YTD: 21.59%
• 6M: 20.73%
• 1Y: 26.86%
• 3Y*: 18.01%
• 5Y*: 10.61%
• 10Y*: 10.33%

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

MACHX vs. GRSPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MACHX Mutual of America Composite Fund	7.78%	18.88%	16.49%	14.56%	-12.57%	14.64%	919.15%
GRSPX Greenspring Fund	21.59%	6.12%	16.03%	11.95%	-8.62%	26.89%	3.81%

Correlation

The correlation between MACHX and GRSPX is 0.53, 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	0.53
Correlation (3Y) Calculated over the trailing 3-year period	0.67
Correlation (5Y) Calculated over the trailing 5-year period	0.68
Correlation (All Time) Calculated using the full available price history since Jan 3, 2020	0.71

The correlation between MACHX and GRSPX shifts across timeframes, from 0.53 (1 year) to 0.71 (all time), reflecting how their relationship changes across market environments.

Return for Risk

MACHX vs. GRSPX — Risk / Return Rank

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

MACHX

MACHX Risk / Return Rank: 88
MACHX Sharpe Ratio Rank: 90
MACHX Sortino Ratio Rank: 90
MACHX Omega Ratio Rank: 84
MACHX Calmar Ratio Rank: 85
MACHX Martin Ratio Rank: 93

GRSPX

GRSPX Risk / Return Rank: 58
GRSPX Sharpe Ratio Rank: 48
GRSPX Sortino Ratio Rank: 47
GRSPX Omega Ratio Rank: 44
GRSPX Calmar Ratio Rank: 85
GRSPX Martin Ratio Rank: 66

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.

MACHX vs. GRSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mutual of America Composite Fund (MACHX) and Greenspring Fund (GRSPX). 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.

	MACHX	GRSPX	Difference
Sharpe ratio: Return per unit of total volatility	2.97	2.04	+0.93
Sortino ratio: Return per unit of downside risk	4.46	2.87	+1.59
Omega ratio: Gain probability vs. loss probability	1.57	1.36	+0.21
Calmar ratio: Return relative to maximum drawdown	4.10	3.99	+0.11
Martin ratio: Return relative to average drawdown	20.52	12.80	+7.72
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MACHX vs. GRSPX - Sharpe Ratio Comparison

The current MACHX Sharpe Ratio is 2.97, which is higher than the GRSPX Sharpe Ratio of 2.04. The chart below compares the historical Sharpe Ratios of MACHX and GRSPX, 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

	MACHX	GRSPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.97	2.04	+0.93
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.84	0.70	+0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.68	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.17	0.70	-0.52

Drawdowns

MACHX vs. GRSPX - Drawdown Comparison

The maximum MACHX drawdown since its inception was -21.24%, smaller than the maximum GRSPX drawdown of -35.67%. Use the drawdown chart below to compare losses from any high point for MACHX and GRSPX.

Drawdown Indicators

	MACHX	GRSPX	Difference
Max Drawdown Largest peak-to-trough decline	-21.24%	-35.67%	+14.43%
Max Drawdown (1Y) Largest decline over 1 year	-6.17%	-7.97%	+1.80%
Max Drawdown (3Y) Largest decline over 3 years	-14.97%	-19.33%	+4.36%
Max Drawdown (5Y) Largest decline over 5 years	-18.57%	-19.33%	+0.76%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.07%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-4.16%	-4.81%	+0.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.18%	2.39%	-1.21%

Volatility

MACHX vs. GRSPX - Volatility Comparison

The current volatility for Mutual of America Composite Fund (MACHX) is 2.41%, while Greenspring Fund (GRSPX) has a volatility of 5.49%. This indicates that MACHX experiences smaller price fluctuations and is considered to be less risky than GRSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MACHX	GRSPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.41%	5.49%	-3.08%
Volatility (6M) Calculated over the trailing 6-month period	6.99%	11.74%	-4.75%
Volatility (1Y) Calculated over the trailing 1-year period	8.51%	15.60%	-7.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.76%	15.57%	-2.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	378.98%	15.36%	+363.62%

MACHX vs. GRSPX - Expense Ratio Comparison

MACHX has a 0.54% expense ratio, which is lower than GRSPX's 1.09% expense ratio.

Dividends

MACHX vs. GRSPX - Dividend Comparison

MACHX's dividend yield for the trailing twelve months is around 10.90%, more than GRSPX's 7.73% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GRSPX Greenspring Fund	7.73%	9.40%	7.14%	6.84%	8.04%	7.69%	2.39%	7.89%	11.05%	9.63%	6.81%	5.34%
MACHX Mutual of America Composite Fund	10.90%	11.75%	8.06%	6.00%	6.23%	3.64%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MACHX and GRSPX in my portfolio?

MACHX and GRSPX have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MACHX or GRSPX?

GRSPX has higher volatility (5.49%) compared to MACHX (2.41%). In terms of maximum drawdown, MACHX dropped -21.24% vs GRSPX's -35.67%.

Which has better risk-adjusted returns?

MACHX currently has the higher Sharpe Ratio (2.97 vs 2.04), 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.