CVLOX vs. GIMFX

Last updated Jun 4, 2026

CVLOX (Calamos Global Opportunities Fund) and GIMFX (GMO Implementation Fund) are both Global Allocation funds. Over the past 10 years, CVLOX returned 11.57%/yr vs 7.26%/yr for GIMFX. A 0.71 correlation means they provide meaningful diversification when combined. CVLOX charges 1.22%/yr vs 0.02%/yr for GIMFX.

Performance

CVLOX vs. GIMFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Global Opportunities Fund (CVLOX) and GMO Implementation Fund (GIMFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CVLOX achieves a 19.22% return, which is significantly higher than GIMFX's 14.16% return. Over the past 10 years, CVLOX has outperformed GIMFX with an annualized return of 11.57%, while GIMFX has yielded a comparatively lower 7.26% annualized return.

CVLOX

• 1D: 0.59%
• 1M: 6.83%
• YTD: 19.22%
• 6M: 19.51%
• 1Y: 31.04%
• 3Y*: 21.82%
• 5Y*: 10.13%
• 10Y*: 11.57%

GIMFX

• 1D: 0.40%
• 1M: 5.11%
• YTD: 14.16%
• 6M: 16.37%
• 1Y: 32.72%
• 3Y*: 17.75%
• 5Y*: 9.54%
• 10Y*: 7.26%

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

CVLOX vs. GIMFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CVLOX Calamos Global Opportunities Fund	19.22%	15.84%	23.81%	13.88%	-22.17%	15.72%	31.76%	18.28%	-9.88%	20.04%
GIMFX GMO Implementation Fund	14.16%	25.37%	2.67%	14.75%	-1.24%	4.05%	-7.25%	13.24%	-5.58%	14.09%

Correlation

The correlation between CVLOX and GIMFX is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.71

The correlation between CVLOX and GIMFX shifts across timeframes, from 0.59 (5 years) to 0.71 (all time), reflecting how their relationship changes across market environments.

Return for Risk

CVLOX vs. GIMFX — Risk / Return Rank

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

CVLOX

CVLOX Risk / Return Rank: 57
CVLOX Sharpe Ratio Rank: 55
CVLOX Sortino Ratio Rank: 50
CVLOX Omega Ratio Rank: 53
CVLOX Calmar Ratio Rank: 67
CVLOX Martin Ratio Rank: 60

GIMFX

GIMFX Risk / Return Rank: 95
GIMFX Sharpe Ratio Rank: 98
GIMFX Sortino Ratio Rank: 97
GIMFX Omega Ratio Rank: 96
GIMFX Calmar Ratio Rank: 92
GIMFX Martin Ratio Rank: 92

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.

CVLOX vs. GIMFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Global Opportunities Fund (CVLOX) and GMO Implementation Fund (GIMFX). 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.

	CVLOX	GIMFX	Difference
Sharpe ratio: Return per unit of total volatility	2.19	4.13	-1.94
Sortino ratio: Return per unit of downside risk	2.97	5.83	-2.86
Omega ratio: Gain probability vs. loss probability	1.40	1.83	-0.43
Calmar ratio: Return relative to maximum drawdown	3.18	5.00	-1.82
Martin ratio: Return relative to average drawdown	11.94	19.42	-7.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CVLOX vs. GIMFX - Sharpe Ratio Comparison

The current CVLOX Sharpe Ratio is 2.19, which is lower than the GIMFX Sharpe Ratio of 4.13. The chart below compares the historical Sharpe Ratios of CVLOX and GIMFX, 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

	CVLOX	GIMFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.19	4.13	-1.94
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	1.12	-0.42
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.79	0.81	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.71	-0.11

Drawdowns

CVLOX vs. GIMFX - Drawdown Comparison

The maximum CVLOX drawdown since its inception was -46.61%, which is greater than GIMFX's maximum drawdown of -25.87%. Use the drawdown chart below to compare losses from any high point for CVLOX and GIMFX.

Drawdown Indicators

	CVLOX	GIMFX	Difference
Max Drawdown Largest peak-to-trough decline	-46.61%	-25.87%	-20.74%
Max Drawdown (1Y) Largest decline over 1 year	-9.85%	-6.53%	-3.32%
Max Drawdown (3Y) Largest decline over 3 years	-15.16%	-8.02%	-7.14%
Max Drawdown (5Y) Largest decline over 5 years	-29.97%	-14.02%	-15.95%
Max Drawdown (10Y) Largest decline over 10 years	-29.97%	-25.87%	-4.10%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-8.99%	-4.29%	-4.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.61%	1.68%	+0.93%

Volatility

CVLOX vs. GIMFX - Volatility Comparison

Calamos Global Opportunities Fund (CVLOX) has a higher volatility of 5.39% compared to GMO Implementation Fund (GIMFX) at 2.84%. This indicates that CVLOX's price experiences larger fluctuations and is considered to be riskier than GIMFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CVLOX	GIMFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.39%	2.84%	+2.55%
Volatility (6M) Calculated over the trailing 6-month period	11.85%	6.22%	+5.63%
Volatility (1Y) Calculated over the trailing 1-year period	14.30%	7.93%	+6.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.51%	8.58%	+5.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.78%	8.98%	+5.80%

CVLOX vs. GIMFX - Expense Ratio Comparison

CVLOX has a 1.22% expense ratio, which is higher than GIMFX's 0.02% expense ratio.

Dividends

CVLOX vs. GIMFX - Dividend Comparison

CVLOX's dividend yield for the trailing twelve months is around 7.61%, more than GIMFX's 3.75% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CVLOX Calamos Global Opportunities Fund	7.61%	9.10%	8.15%	0.61%	0.00%	5.71%	6.11%	1.28%	12.65%	6.04%	0.68%	1.28%
GIMFX GMO Implementation Fund	3.75%	4.28%	3.39%	5.93%	3.59%	3.28%	2.25%	3.99%	4.59%	2.95%	1.98%	0.00%

Frequently Asked Questions

Can I hold both CVLOX and GIMFX in my portfolio?

CVLOX and GIMFX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CVLOX or GIMFX?

CVLOX has higher volatility (5.39%) compared to GIMFX (2.84%). In terms of maximum drawdown, CVLOX dropped -46.61% vs GIMFX's -25.87%.

Which has better risk-adjusted returns?

GIMFX currently has the higher Sharpe Ratio (4.13 vs 2.19), 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.