MXBSX vs. FRKMX

Last updated Jun 5, 2026

MXBSX (Great-West Lifetime 2050 Fund) and FRKMX (Fidelity Managed Retirement Income Fund Class K) are both Target Retirement Date funds. Over the past 5 years, MXBSX returned 7.95%/yr vs 2.85%/yr for FRKMX. A 0.64 correlation means they provide meaningful diversification when combined. MXBSX charges 0.12%/yr vs 0.35%/yr for FRKMX.

Performance

MXBSX vs. FRKMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Great-West Lifetime 2050 Fund (MXBSX) and Fidelity Managed Retirement Income Fund Class K (FRKMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MXBSX achieves a 10.07% return, which is significantly higher than FRKMX's 3.83% return.

MXBSX

• 1D: -0.57%
• 1M: 2.81%
• YTD: 10.07%
• 6M: 10.63%
• 1Y: 22.71%
• 3Y*: 16.44%
• 5Y*: 7.95%
• 10Y*: 10.29%

FRKMX

• 1D: -0.25%
• 1M: 1.02%
• YTD: 3.83%
• 6M: 4.13%
• 1Y: 9.76%
• 3Y*: 7.56%
• 5Y*: 2.85%
• 10Y*: —

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

MXBSX vs. FRKMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
MXBSX Great-West Lifetime 2050 Fund	10.07%	17.70%	11.16%	17.79%	-16.61%	16.82%	13.96%	8.71%
FRKMX Fidelity Managed Retirement Income Fund Class K	3.83%	9.91%	4.40%	8.17%	-11.57%	2.88%	8.68%	3.08%

Correlation

The correlation between MXBSX and FRKMX is 0.77, 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	0.77
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (All Time) Calculated using the full available price history since Aug 2, 2019	0.64

The correlation between MXBSX and FRKMX shifts across timeframes, from 0.64 (all time) to 0.77 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

MXBSX vs. FRKMX — Risk / Return Rank

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

MXBSX

MXBSX Risk / Return Rank: 47
MXBSX Sharpe Ratio Rank: 43
MXBSX Sortino Ratio Rank: 42
MXBSX Omega Ratio Rank: 45
MXBSX Calmar Ratio Rank: 50
MXBSX Martin Ratio Rank: 56

FRKMX

FRKMX Risk / Return Rank: 71
FRKMX Sharpe Ratio Rank: 73
FRKMX Sortino Ratio Rank: 76
FRKMX Omega Ratio Rank: 75
FRKMX Calmar Ratio Rank: 62
FRKMX Martin Ratio Rank: 67

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.

MXBSX vs. FRKMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Great-West Lifetime 2050 Fund (MXBSX) and Fidelity Managed Retirement Income Fund Class K (FRKMX). 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.

	MXBSX	FRKMX	Difference
Sharpe ratio: Return per unit of total volatility	1.88	2.47	-0.59
Sortino ratio: Return per unit of downside risk	2.65	3.64	-0.99
Omega ratio: Gain probability vs. loss probability	1.35	1.49	-0.14
Calmar ratio: Return relative to maximum drawdown	2.63	3.01	-0.38
Martin ratio: Return relative to average drawdown	10.93	12.84	-1.91
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MXBSX vs. FRKMX - Sharpe Ratio Comparison

The current MXBSX Sharpe Ratio is 1.88, which is comparable to the FRKMX Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of MXBSX and FRKMX, 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

	MXBSX	FRKMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.88	2.47	-0.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	0.54	-0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.63	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	0.79	-0.15

Drawdowns

MXBSX vs. FRKMX - Drawdown Comparison

The maximum MXBSX drawdown since its inception was -31.88%, which is greater than FRKMX's maximum drawdown of -16.04%. Use the drawdown chart below to compare losses from any high point for MXBSX and FRKMX.

Drawdown Indicators

	MXBSX	FRKMX	Difference
Max Drawdown Largest peak-to-trough decline	-31.88%	-16.04%	-15.84%
Max Drawdown (1Y) Largest decline over 1 year	-8.80%	-3.42%	-5.38%
Max Drawdown (3Y) Largest decline over 3 years	-14.76%	-4.93%	-9.83%
Max Drawdown (5Y) Largest decline over 5 years	-29.68%	-16.04%	-13.64%
Max Drawdown (10Y) Largest decline over 10 years	-31.88%	—	—
Current Drawdown Current decline from peak	-0.57%	-0.25%	-0.32%
Average Drawdown Average peak-to-trough decline	-5.94%	-3.56%	-2.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.11%	0.80%	+1.31%

Volatility

MXBSX vs. FRKMX - Volatility Comparison

Great-West Lifetime 2050 Fund (MXBSX) has a higher volatility of 3.33% compared to Fidelity Managed Retirement Income Fund Class K (FRKMX) at 1.68%. This indicates that MXBSX's price experiences larger fluctuations and is considered to be riskier than FRKMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MXBSX	FRKMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.33%	1.68%	+1.65%
Volatility (6M) Calculated over the trailing 6-month period	8.93%	3.41%	+5.52%
Volatility (1Y) Calculated over the trailing 1-year period	12.32%	4.16%	+8.16%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.89%	5.29%	+10.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.37%	5.14%	+11.23%

MXBSX vs. FRKMX - Expense Ratio Comparison

MXBSX has a 0.12% expense ratio, which is lower than FRKMX's 0.35% expense ratio.

Dividends

MXBSX vs. FRKMX - Dividend Comparison

MXBSX's dividend yield for the trailing twelve months is around 4.79%, more than FRKMX's 3.20% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FRKMX Fidelity Managed Retirement Income Fund Class K	3.20%	3.11%	3.12%	2.92%	4.66%	3.65%	2.56%	1.85%	0.00%	0.00%
MXBSX Great-West Lifetime 2050 Fund	4.79%	5.27%	7.38%	5.63%	10.66%	11.14%	6.57%	9.46%	8.18%	3.54%

Frequently Asked Questions

Can I hold both MXBSX and FRKMX in my portfolio?

MXBSX and FRKMX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MXBSX or FRKMX?

MXBSX has higher volatility (3.33%) compared to FRKMX (1.68%). In terms of maximum drawdown, MXBSX dropped -31.88% vs FRKMX's -16.04%.

Which has better risk-adjusted returns?

FRKMX currently has the higher Sharpe Ratio (2.47 vs 1.88), 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.