MXMTX vs. MXMDX

Last updated Jul 14, 2026

MXMTX (Great-West Small Cap Growth Fund) and MXMDX (Great-West S&P Mid Cap 400 Index Fund) are both mutual funds - MXMTX is a Small Cap Growth Equities fund managed by Great-West, while MXMDX is a Mid Cap Blend Equities fund managed by Great-West. Over the past 10 years, MXMTX returned 11.47%/yr vs 9.91%/yr for MXMDX. Their correlation of 0.90 suggests significant overlap in exposure. MXMTX charges 1.19%/yr vs 0.55%/yr for MXMDX.

Performance

MXMTX vs. MXMDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Great-West Small Cap Growth Fund (MXMTX) and Great-West S&P Mid Cap 400 Index Fund (MXMDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MXMTX achieves a 15.67% return, which is significantly higher than MXMDX's 14.86% return. Over the past 10 years, MXMTX has outperformed MXMDX with an annualized return of 11.47%, while MXMDX has yielded a comparatively lower 9.91% annualized return.

MXMTX

• 1D: -1.02%
• 1M: 2.10%
• 6M: 10.41%
• YTD: 15.67%
• 1Y: 24.57%
• 3Y*: 12.35%
• 5Y*: 3.94%
• 10Y*: 11.47%

MXMDX

• 1D: -0.08%
• 1M: -0.33%
• 6M: 9.50%
• YTD: 14.86%
• 1Y: 19.15%
• 3Y*: 13.43%
• 5Y*: 7.94%
• 10Y*: 9.91%

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

MXMTX vs. MXMDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXMTX Great-West Small Cap Growth Fund	15.67%	7.79%	10.40%	15.76%	-35.11%	30.78%	36.77%	27.26%	-3.58%	22.45%
MXMDX Great-West S&P Mid Cap 400 Index Fund	14.86%	6.90%	13.23%	15.75%	-13.60%	24.25%	12.84%	25.48%	-12.02%	15.01%

Correlation

The correlation between MXMTX and MXMDX is 0.91, 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	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.90

The correlation between MXMTX and MXMDX has been stable across timeframes, ranging from 0.90 to 0.92 - a consistent structural relationship.

Return for Risk

MXMTX vs. MXMDX — Risk / Return Rank

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

MXMTX

MXMTX Risk / Return Rank: 35
MXMTX Sharpe Ratio Rank: 33
MXMTX Sortino Ratio Rank: 34
MXMTX Omega Ratio Rank: 30
MXMTX Calmar Ratio Rank: 38
MXMTX Martin Ratio Rank: 41

MXMDX

MXMDX Risk / Return Rank: 40
MXMDX Sharpe Ratio Rank: 34
MXMDX Sortino Ratio Rank: 35
MXMDX Omega Ratio Rank: 32
MXMDX Calmar Ratio Rank: 52
MXMDX 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.

MXMTX vs. MXMDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Great-West Small Cap Growth Fund (MXMTX) and Great-West S&P Mid Cap 400 Index Fund (MXMDX). 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.

	MXMTX	MXMDX	Difference
Sharpe ratio: Return per unit of total volatility	1.25	1.27	-0.02
Sortino ratio: Return per unit of downside risk	1.86	1.90	-0.04
Omega ratio: Gain probability vs. loss probability	1.22	1.23	-0.01
Calmar ratio: Return relative to maximum drawdown	1.85	2.23	-0.37
Martin ratio: Return relative to average drawdown	7.06	7.98	-0.92

MXMTX vs. MXMDX - Sharpe Ratio Comparison

The current MXMTX Sharpe Ratio is 1.25, which is comparable to the MXMDX Sharpe Ratio of 1.27. The chart below compares the historical Sharpe Ratios of MXMTX and MXMDX, 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

MXMTX vs. MXMDX - Drawdown Comparison

The maximum MXMTX drawdown since its inception was -42.71%, roughly equal to the maximum MXMDX drawdown of -41.80%. Use the drawdown chart below to compare losses from any high point for MXMTX and MXMDX.

Drawdown Indicators

	MXMTX	MXMDX	Difference
Max Drawdown Largest peak-to-trough decline	-42.71%	-41.80%	-0.91%
Max Drawdown (1Y) Largest decline over 1 year	-13.67%	-8.87%	-4.80%
Max Drawdown (3Y) Largest decline over 3 years	-27.89%	-24.15%	-3.74%
Max Drawdown (5Y) Largest decline over 5 years	-40.29%	-24.15%	-16.14%
Max Drawdown (10Y) Largest decline over 10 years	-42.71%	-41.80%	-0.91%
Current Drawdown Current decline from peak	-3.15%	-1.83%	-1.32%
Average Drawdown Average peak-to-trough decline	-12.70%	-5.91%	-6.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.55%	2.45%	+1.10%

Volatility

MXMTX vs. MXMDX - Volatility Comparison

Great-West Small Cap Growth Fund (MXMTX) has a higher volatility of 6.54% compared to Great-West S&P Mid Cap 400 Index Fund (MXMDX) at 4.55%. This indicates that MXMTX's price experiences larger fluctuations and is considered to be riskier than MXMDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MXMTX	MXMDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.54%	4.55%	+1.99%
Volatility (6M) Calculated over the trailing 6-month period	15.86%	11.60%	+4.26%
Volatility (1Y) Calculated over the trailing 1-year period	20.26%	15.58%	+4.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.96%	19.98%	+4.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.32%	21.16%	+5.16%

MXMTX vs. MXMDX - Expense Ratio Comparison

MXMTX has a 1.19% expense ratio, which is higher than MXMDX's 0.55% expense ratio.

Dividends

MXMTX vs. MXMDX - Dividend Comparison

MXMTX's dividend yield for the trailing twelve months is around 4.21%, less than MXMDX's 5.80% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXMDX Great-West S&P Mid Cap 400 Index Fund	5.80%	6.66%	3.04%	4.76%	4.35%	5.24%	5.74%	3.74%	8.13%	4.51%
MXMTX Great-West Small Cap Growth Fund	4.21%	4.87%	7.32%	0.03%	4.15%	19.92%	10.56%	4.15%	25.89%	4.71%

Frequently Asked Questions

Can I hold both MXMTX and MXMDX in my portfolio?

With a correlation of 0.91, MXMTX and MXMDX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, MXMTX or MXMDX?

MXMTX has higher volatility (6.54%) compared to MXMDX (4.55%). In terms of maximum drawdown, MXMTX dropped -42.71% vs MXMDX's -41.80%.

Which has better risk-adjusted returns?

MXMDX currently has the higher Sharpe Ratio (1.27 vs 1.25), 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.