MXAKX vs. MXVIX

Last updated Jun 23, 2026

MXAKX (Great-West Lifetime 2020 Fund) and MXVIX (Great-West S&P 500 Index Fund) are both mutual funds - MXAKX is a Target Retirement Date fund managed by Great-West, while MXVIX is a Large Cap Blend Equities fund managed by Great-West. Over the past 10 years, MXAKX returned 6.59%/yr vs 14.63%/yr for MXVIX. A 0.75 correlation means they provide meaningful diversification when combined. MXAKX charges 0.09%/yr vs 0.51%/yr for MXVIX.

Performance

MXAKX vs. MXVIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Great-West Lifetime 2020 Fund (MXAKX) and Great-West S&P 500 Index Fund (MXVIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MXAKX achieves a 5.35% return, which is significantly lower than MXVIX's 9.96% return. Over the past 10 years, MXAKX has underperformed MXVIX with an annualized return of 6.59%, while MXVIX has yielded a comparatively higher 14.63% annualized return.

MXAKX

• 1D: 0.53%
• 1M: 0.97%
• YTD: 5.35%
• 6M: 5.25%
• 1Y: 12.88%
• 3Y*: 9.64%
• 5Y*: 4.93%
• 10Y*: 6.59%

MXVIX

• 1D: 1.09%
• 1M: 0.42%
• YTD: 9.96%
• 6M: 9.46%
• 1Y: 26.30%
• 3Y*: 20.36%
• 5Y*: 13.53%
• 10Y*: 14.63%

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

MXAKX vs. MXVIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXAKX Great-West Lifetime 2020 Fund	5.35%	11.13%	7.06%	11.54%	-12.68%	9.78%	11.50%	17.31%	-5.19%	11.69%
MXVIX Great-West S&P 500 Index Fund	9.96%	17.30%	24.31%	25.57%	-18.56%	29.04%	16.96%	30.84%	-5.32%	21.05%

Correlation

The correlation between MXAKX and MXVIX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.75
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (10Y) Calculated over the trailing 10-year period	0.75
Correlation (All Time) Calculated using the full available price history since May 4, 2016	0.75

The correlation between MXAKX and MXVIX has been stable across timeframes, ranging from 0.75 to 0.80 - a consistent structural relationship.

Return for Risk

MXAKX vs. MXVIX — Risk / Return Rank

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

MXAKX

MXAKX Risk / Return Rank: 51
MXAKX Sharpe Ratio Rank: 47
MXAKX Sortino Ratio Rank: 47
MXAKX Omega Ratio Rank: 53
MXAKX Calmar Ratio Rank: 50
MXAKX Martin Ratio Rank: 57

MXVIX

MXVIX Risk / Return Rank: 68
MXVIX Sharpe Ratio Rank: 67
MXVIX Sortino Ratio Rank: 60
MXVIX Omega Ratio Rank: 62
MXVIX Calmar Ratio Rank: 70
MXVIX Martin Ratio Rank: 78

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.

MXAKX vs. MXVIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Great-West Lifetime 2020 Fund (MXAKX) and Great-West S&P 500 Index Fund (MXVIX). 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.

	MXAKX	MXVIX	Difference
Sharpe ratio: Return per unit of total volatility	1.85	2.20	-0.35
Sortino ratio: Return per unit of downside risk	2.67	2.97	-0.30
Omega ratio: Gain probability vs. loss probability	1.37	1.40	-0.03
Calmar ratio: Return relative to maximum drawdown	2.60	3.06	-0.46
Martin ratio: Return relative to average drawdown	10.76	13.64	-2.88

MXAKX vs. MXVIX - Sharpe Ratio Comparison

The current MXAKX Sharpe Ratio is 1.85, which is comparable to the MXVIX Sharpe Ratio of 2.20. The chart below compares the historical Sharpe Ratios of MXAKX and MXVIX, 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

MXAKX vs. MXVIX - Drawdown Comparison

The maximum MXAKX drawdown since its inception was -21.92%, smaller than the maximum MXVIX drawdown of -58.12%. Use the drawdown chart below to compare losses from any high point for MXAKX and MXVIX.

Drawdown Indicators

	MXAKX	MXVIX	Difference
Max Drawdown Largest peak-to-trough decline	-21.92%	-58.12%	+36.20%
Max Drawdown (1Y) Largest decline over 1 year	-4.93%	-8.94%	+4.01%
Max Drawdown (3Y) Largest decline over 3 years	-7.14%	-19.07%	+11.93%
Max Drawdown (5Y) Largest decline over 5 years	-21.92%	-24.74%	+2.82%
Max Drawdown (10Y) Largest decline over 10 years	-21.92%	-33.82%	+11.90%
Current Drawdown Current decline from peak	-0.26%	-1.39%	+1.13%
Average Drawdown Average peak-to-trough decline	-4.06%	-8.66%	+4.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.19%	1.98%	-0.79%

Volatility

MXAKX vs. MXVIX - Volatility Comparison

The current volatility for Great-West Lifetime 2020 Fund (MXAKX) is 2.54%, while Great-West S&P 500 Index Fund (MXVIX) has a volatility of 4.76%. This indicates that MXAKX experiences smaller price fluctuations and is considered to be less risky than MXVIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MXAKX	MXVIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.54%	4.76%	-2.22%
Volatility (6M) Calculated over the trailing 6-month period	5.18%	9.90%	-4.72%
Volatility (1Y) Calculated over the trailing 1-year period	6.92%	12.45%	-5.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.40%	17.28%	-7.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.24%	18.25%	-9.01%

MXAKX vs. MXVIX - Expense Ratio Comparison

MXAKX has a 0.09% expense ratio, which is lower than MXVIX's 0.51% expense ratio.

Dividends

MXAKX vs. MXVIX - Dividend Comparison

MXAKX's dividend yield for the trailing twelve months is around 4.51%, more than MXVIX's 0.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXAKX Great-West Lifetime 2020 Fund	4.51%	4.75%	4.34%	5.07%	8.97%	8.35%	4.90%	7.05%	6.16%	2.78%
MXVIX Great-West S&P 500 Index Fund	0.35%	0.38%	0.95%	5.22%	1.25%	4.97%	8.27%	5.11%	10.56%	2.06%

Frequently Asked Questions

Can I hold both MXAKX and MXVIX in my portfolio?

MXAKX and MXVIX 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, MXAKX or MXVIX?

MXVIX has higher volatility (4.76%) compared to MXAKX (2.54%). In terms of maximum drawdown, MXAKX dropped -21.92% vs MXVIX's -58.12%.

Which has better risk-adjusted returns?

MXVIX currently has the higher Sharpe Ratio (2.20 vs 1.85), 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.