MXBGX vs. MXREX

Last updated Jun 9, 2026

MXBGX (Great-West Lifetime 2040 Fund) and MXREX (Great-West Real Estate Index Fund) are both mutual funds - MXBGX is a Target Retirement Date fund managed by Great-West, while MXREX is a REIT fund managed by Great-West. Over the past 10 years, MXBGX returned 9.22%/yr vs 4.12%/yr for MXREX. A 0.50 correlation means they provide meaningful diversification when combined. MXBGX charges 0.11%/yr vs 0.70%/yr for MXREX.

Performance

MXBGX vs. MXREX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Great-West Lifetime 2040 Fund (MXBGX) and Great-West Real Estate Index Fund (MXREX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MXBGX achieves a 6.76% return, which is significantly lower than MXREX's 14.40% return. Over the past 10 years, MXBGX has outperformed MXREX with an annualized return of 9.22%, while MXREX has yielded a comparatively lower 4.12% annualized return.

MXBGX

• 1D: -2.24%
• 1M: -0.71%
• YTD: 6.76%
• 6M: 7.46%
• 1Y: 17.67%
• 3Y*: 14.08%
• 5Y*: 6.77%
• 10Y*: 9.22%

MXREX

• 1D: 0.94%
• 1M: 0.36%
• YTD: 14.40%
• 6M: 14.62%
• 1Y: 18.41%
• 3Y*: 11.69%
• 5Y*: 4.43%
• 10Y*: 4.12%

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

MXBGX vs. MXREX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXBGX Great-West Lifetime 2040 Fund	6.76%	16.19%	10.17%	16.47%	-15.90%	15.69%	13.61%	25.22%	-9.48%	18.42%
MXREX Great-West Real Estate Index Fund	14.40%	3.16%	7.47%	13.31%	-26.44%	45.80%	-12.52%	22.41%	-4.92%	2.25%

Correlation

The correlation between MXBGX and MXREX is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.50
Correlation (All Time) Calculated using the full available price history since May 5, 2016	0.50

The correlation between MXBGX and MXREX shifts across timeframes, from 0.42 (1 year) to 0.59 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

MXBGX vs. MXREX — Risk / Return Rank

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

MXBGX

MXBGX Risk / Return Rank: 45
MXBGX Sharpe Ratio Rank: 42
MXBGX Sortino Ratio Rank: 41
MXBGX Omega Ratio Rank: 44
MXBGX Calmar Ratio Rank: 46
MXBGX Martin Ratio Rank: 54

MXREX

MXREX Risk / Return Rank: 35
MXREX Sharpe Ratio Rank: 30
MXREX Sortino Ratio Rank: 27
MXREX Omega Ratio Rank: 28
MXREX Calmar Ratio Rank: 49
MXREX Martin Ratio Rank: 41

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.

MXBGX vs. MXREX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Great-West Lifetime 2040 Fund (MXBGX) and Great-West Real Estate Index Fund (MXREX). 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.

	MXBGX	MXREX	Difference
Sharpe ratio: Return per unit of total volatility	1.64	1.44	+0.21
Sortino ratio: Return per unit of downside risk	2.32	1.96	+0.36
Omega ratio: Gain probability vs. loss probability	1.31	1.25	+0.06
Calmar ratio: Return relative to maximum drawdown	2.30	2.50	-0.20
Martin ratio: Return relative to average drawdown	9.60	8.24	+1.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MXBGX vs. MXREX - Sharpe Ratio Comparison

The current MXBGX Sharpe Ratio is 1.64, which is comparable to the MXREX Sharpe Ratio of 1.44. The chart below compares the historical Sharpe Ratios of MXBGX and MXREX, 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

	MXBGX	MXREX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.64	1.44	+0.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.47	0.23	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.61	0.19	+0.42
Sharpe Ratio (All Time) Calculated using the full available price history	0.63	0.22	+0.41

Drawdowns

MXBGX vs. MXREX - Drawdown Comparison

The maximum MXBGX drawdown since its inception was -30.12%, smaller than the maximum MXREX drawdown of -43.89%. Use the drawdown chart below to compare losses from any high point for MXBGX and MXREX.

Drawdown Indicators

	MXBGX	MXREX	Difference
Max Drawdown Largest peak-to-trough decline	-30.12%	-43.89%	+13.77%
Max Drawdown (1Y) Largest decline over 1 year	-7.98%	-7.73%	-0.25%
Max Drawdown (3Y) Largest decline over 3 years	-13.05%	-18.79%	+5.74%
Max Drawdown (5Y) Largest decline over 5 years	-28.13%	-33.06%	+4.93%
Max Drawdown (10Y) Largest decline over 10 years	-30.12%	-43.89%	+13.77%
Current Drawdown Current decline from peak	-2.32%	-0.92%	-1.40%
Average Drawdown Average peak-to-trough decline	-5.60%	-11.62%	+6.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.91%	2.32%	-0.41%

Volatility

MXBGX vs. MXREX - Volatility Comparison

The current volatility for Great-West Lifetime 2040 Fund (MXBGX) is 3.47%, while Great-West Real Estate Index Fund (MXREX) has a volatility of 4.18%. This indicates that MXBGX experiences smaller price fluctuations and is considered to be less risky than MXREX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MXBGX	MXREX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.47%	4.18%	-0.71%
Volatility (6M) Calculated over the trailing 6-month period	8.29%	9.54%	-1.25%
Volatility (1Y) Calculated over the trailing 1-year period	11.18%	13.46%	-2.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.46%	19.34%	-4.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.13%	21.93%	-6.80%

MXBGX vs. MXREX - Expense Ratio Comparison

MXBGX has a 0.11% expense ratio, which is lower than MXREX's 0.70% expense ratio.

Dividends

MXBGX vs. MXREX - Dividend Comparison

MXBGX's dividend yield for the trailing twelve months is around 4.70%, more than MXREX's 1.81% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
MXBGX Great-West Lifetime 2040 Fund	4.70%	5.02%	6.86%	5.77%	11.05%	10.66%	6.43%	9.53%	7.86%	5.21%
MXREX Great-West Real Estate Index Fund	1.81%	2.07%	6.74%	1.85%	4.69%	1.93%	1.60%	4.51%	4.10%	3.36%

Frequently Asked Questions

Can I hold both MXBGX and MXREX in my portfolio?

MXBGX and MXREX have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MXBGX or MXREX?

MXREX has higher volatility (4.18%) compared to MXBGX (3.47%). In terms of maximum drawdown, MXBGX dropped -30.12% vs MXREX's -43.89%.

Which has better risk-adjusted returns?

MXBGX currently has the higher Sharpe Ratio (1.64 vs 1.44), 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.