MCFIX vs. GUGAX

Last updated Jun 24, 2026

MCFIX (Mercer Core Fixed Income Fund) and GUGAX (GMO Multi-Sector Fixed Income Fund) are both Intermediate Core-Plus Bond funds. Over the past 5 years, MCFIX returned -0.22%/yr vs -0.52%/yr for GUGAX. Their correlation of 0.83 suggests significant overlap in exposure. MCFIX charges 0.16%/yr vs 0.45%/yr for GUGAX.

Performance

MCFIX vs. GUGAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Mercer Core Fixed Income Fund (MCFIX) and GMO Multi-Sector Fixed Income Fund (GUGAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MCFIX achieves a -1.32% return, which is significantly lower than GUGAX's 0.96% return.

MCFIX

• 1D: -0.34%
• 1M: 0.23%
• YTD: -1.32%
• 6M: -0.85%
• 1Y: 1.85%
• 3Y*: 3.61%
• 5Y*: -0.22%
• 10Y*: —

GUGAX

• 1D: 0.00%
• 1M: 0.00%
• YTD: 0.96%
• 6M: 1.07%
• 1Y: 4.83%
• 3Y*: 4.30%
• 5Y*: -0.52%
• 10Y*: 1.51%

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

MCFIX vs. GUGAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
MCFIX Mercer Core Fixed Income Fund	-1.32%	6.64%	2.02%	6.47%	-13.69%	-1.05%	4.75%	3.31%
GUGAX GMO Multi-Sector Fixed Income Fund	0.96%	7.29%	0.96%	6.02%	-14.52%	-3.17%	4.91%	6.36%

Correlation

The correlation between MCFIX and GUGAX is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since Apr 12, 2019	0.83

Over the past year, the correlation between MCFIX and GUGAX has dropped to 0.51 - well below their long-term average of 0.83, suggesting their price drivers have been diverging.

Return for Risk

MCFIX vs. GUGAX — Risk / Return Rank

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

MCFIX

MCFIX Risk / Return Rank: 7
MCFIX Sharpe Ratio Rank: 8
MCFIX Sortino Ratio Rank: 7
MCFIX Omega Ratio Rank: 7
MCFIX Calmar Ratio Rank: 7
MCFIX Martin Ratio Rank: 7

GUGAX

GUGAX Risk / Return Rank: 76
GUGAX Sharpe Ratio Rank: 54
GUGAX Sortino Ratio Rank: 76
GUGAX Omega Ratio Rank: 76
GUGAX Calmar Ratio Rank: 93
GUGAX Martin Ratio Rank: 82

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.

MCFIX vs. GUGAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Mercer Core Fixed Income Fund (MCFIX) and GMO Multi-Sector Fixed Income Fund (GUGAX). 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.

	MCFIX	GUGAX	Difference
Sharpe ratio: Return per unit of total volatility	0.61	2.00	-1.39
Sortino ratio: Return per unit of downside risk	0.90	3.32	-2.42
Omega ratio: Gain probability vs. loss probability	1.11	1.45	-0.35
Calmar ratio: Return relative to maximum drawdown	0.65	4.82	-4.16
Martin ratio: Return relative to average drawdown	1.69	14.23	-12.54

MCFIX vs. GUGAX - Sharpe Ratio Comparison

The current MCFIX Sharpe Ratio is 0.61, which is lower than the GUGAX Sharpe Ratio of 2.00. The chart below compares the historical Sharpe Ratios of MCFIX and GUGAX, 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

MCFIX vs. GUGAX - Drawdown Comparison

The maximum MCFIX drawdown since its inception was -21.68%, smaller than the maximum GUGAX drawdown of -38.57%. Use the drawdown chart below to compare losses from any high point for MCFIX and GUGAX.

Drawdown Indicators

	MCFIX	GUGAX	Difference
Max Drawdown Largest peak-to-trough decline	-21.68%	-38.57%	+16.89%
Max Drawdown (1Y) Largest decline over 1 year	-3.75%	-1.16%	-2.59%
Max Drawdown (3Y) Largest decline over 3 years	-6.32%	-6.12%	-0.20%
Max Drawdown (5Y) Largest decline over 5 years	-18.72%	-20.53%	+1.81%
Max Drawdown (10Y) Largest decline over 10 years	—	-23.06%	—
Current Drawdown Current decline from peak	-6.29%	-6.72%	+0.43%
Average Drawdown Average peak-to-trough decline	-8.52%	-11.26%	+2.74%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.38%	0.39%	+0.99%

Volatility

MCFIX vs. GUGAX - Volatility Comparison

Mercer Core Fixed Income Fund (MCFIX) has a higher volatility of 1.03% compared to GMO Multi-Sector Fixed Income Fund (GUGAX) at 0.00%. This indicates that MCFIX's price experiences larger fluctuations and is considered to be riskier than GUGAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MCFIX	GUGAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.03%	0.00%	+1.03%
Volatility (6M) Calculated over the trailing 6-month period	2.78%	1.30%	+1.48%
Volatility (1Y) Calculated over the trailing 1-year period	4.05%	2.80%	+1.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.04%	6.57%	-0.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.10%	5.42%	+0.68%

MCFIX vs. GUGAX - Expense Ratio Comparison

MCFIX has a 0.16% expense ratio, which is lower than GUGAX's 0.45% expense ratio.

Dividends

MCFIX vs. GUGAX - Dividend Comparison

MCFIX's dividend yield for the trailing twelve months is around 4.32%, less than GUGAX's 4.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GUGAX GMO Multi-Sector Fixed Income Fund	4.52%	3.69%	4.34%	0.00%	1.94%	2.90%	7.96%	5.74%	5.08%	2.43%	3.29%	1.76%
MCFIX Mercer Core Fixed Income Fund	4.32%	3.89%	4.54%	3.68%	3.31%	2.45%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MCFIX and GUGAX in my portfolio?

MCFIX and GUGAX have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MCFIX or GUGAX?

MCFIX has higher volatility (1.03%) compared to GUGAX (0.00%). In terms of maximum drawdown, MCFIX dropped -21.68% vs GUGAX's -38.57%.

Which has better risk-adjusted returns?

GUGAX currently has the higher Sharpe Ratio (2.00 vs 0.61), 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.