OCMAX vs. GGN

Last updated Jun 24, 2026

OCMAX (OCM Gold Atlas) and GGN (GAMCO Global Gold, Natural Resources and Income Trust) are both Gold funds. Over the past 10 years, OCMAX returned 16.61%/yr vs 8.21%/yr for GGN. A 0.60 correlation means they provide meaningful diversification when combined. OCMAX charges 1.88%/yr vs 0.01%/yr for GGN.

Performance

OCMAX vs. GGN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in OCM Gold Atlas (OCMAX) and GAMCO Global Gold, Natural Resources and Income Trust (GGN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OCMAX achieves a 0.32% return, which is significantly higher than GGN's -2.80% return. Over the past 10 years, OCMAX has outperformed GGN with an annualized return of 16.61%, while GGN has yielded a comparatively lower 8.21% annualized return.

OCMAX

• 1D: -1.56%
• 1M: -3.51%
• YTD: 0.32%
• 6M: -3.21%
• 1Y: 61.06%
• 3Y*: 51.76%
• 5Y*: 21.66%
• 10Y*: 16.61%

GGN

• 1D: -2.02%
• 1M: -5.25%
• YTD: -2.80%
• 6M: -5.19%
• 1Y: 16.41%
• 3Y*: 19.60%
• 5Y*: 13.57%
• 10Y*: 8.21%

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

OCMAX vs. GGN - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OCMAX OCM Gold Atlas	0.32%	168.37%	23.87%	4.82%	-17.28%	-9.16%	45.45%	58.42%	-13.25%	10.55%
GGN GAMCO Global Gold, Natural Resources and Income Trust	-2.80%	48.19%	9.59%	15.01%	6.80%	17.41%	-8.62%	36.59%	-19.53%	9.54%

Correlation

The correlation between OCMAX and GGN 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	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (10Y) Calculated over the trailing 10-year period	0.58
Correlation (All Time) Calculated using the full available price history since Mar 31, 2010	0.60

The correlation between OCMAX and GGN shifts across timeframes, from 0.58 (10 years) to 0.77 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

OCMAX vs. GGN — Risk / Return Rank

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

OCMAX

OCMAX Risk / Return Rank: 29
OCMAX Sharpe Ratio Rank: 33
OCMAX Sortino Ratio Rank: 25
OCMAX Omega Ratio Rank: 31
OCMAX Calmar Ratio Rank: 32
OCMAX Martin Ratio Rank: 26

GGN

GGN Risk / Return Rank: 10
GGN Sharpe Ratio Rank: 9
GGN Sortino Ratio Rank: 9
GGN Omega Ratio Rank: 10
GGN Calmar Ratio Rank: 11
GGN Martin Ratio Rank: 10

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.

OCMAX vs. GGN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for OCM Gold Atlas (OCMAX) and GAMCO Global Gold, Natural Resources and Income Trust (GGN). 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.

	OCMAX	GGN	Difference
Sharpe ratio: Return per unit of total volatility	1.54	0.70	+0.84
Sortino ratio: Return per unit of downside risk	1.94	1.03	+0.91
Omega ratio: Gain probability vs. loss probability	1.27	1.14	+0.13
Calmar ratio: Return relative to maximum drawdown	2.01	0.98	+1.03
Martin ratio: Return relative to average drawdown	5.69	2.71	+2.98

OCMAX vs. GGN - Sharpe Ratio Comparison

The current OCMAX Sharpe Ratio is 1.54, which is higher than the GGN Sharpe Ratio of 0.70. The chart below compares the historical Sharpe Ratios of OCMAX and GGN, 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

OCMAX vs. GGN - Drawdown Comparison

The maximum OCMAX drawdown since its inception was -76.26%, roughly equal to the maximum GGN drawdown of -73.04%. Use the drawdown chart below to compare losses from any high point for OCMAX and GGN.

Drawdown Indicators

	OCMAX	GGN	Difference
Max Drawdown Largest peak-to-trough decline	-76.26%	-73.04%	-3.22%
Max Drawdown (1Y) Largest decline over 1 year	-31.28%	-16.80%	-14.48%
Max Drawdown (3Y) Largest decline over 3 years	-31.28%	-16.80%	-14.48%
Max Drawdown (5Y) Largest decline over 5 years	-44.05%	-22.08%	-21.97%
Max Drawdown (10Y) Largest decline over 10 years	-45.14%	-53.04%	+7.90%
Current Drawdown Current decline from peak	-23.58%	-15.19%	-8.39%
Average Drawdown Average peak-to-trough decline	-36.10%	-31.74%	-4.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.02%	6.07%	+4.95%

Volatility

OCMAX vs. GGN - Volatility Comparison

OCM Gold Atlas (OCMAX) has a higher volatility of 16.55% compared to GAMCO Global Gold, Natural Resources and Income Trust (GGN) at 7.17%. This indicates that OCMAX's price experiences larger fluctuations and is considered to be riskier than GGN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OCMAX	GGN	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.55%	7.17%	+9.38%
Volatility (6M) Calculated over the trailing 6-month period	34.50%	19.58%	+14.92%
Volatility (1Y) Calculated over the trailing 1-year period	40.89%	23.69%	+17.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.77%	19.20%	+15.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.97%	23.10%	+10.87%

OCMAX vs. GGN - Expense Ratio Comparison

OCMAX has a 1.88% expense ratio, which is higher than GGN's 0.02% expense ratio.

Dividends

OCMAX vs. GGN - Dividend Comparison

OCMAX's dividend yield for the trailing twelve months is around 5.90%, less than GGN's 7.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GGN GAMCO Global Gold, Natural Resources and Income Trust	7.42%	6.98%	9.55%	10.37%	9.92%	9.60%	13.68%	13.64%	16.22%	11.52%	15.85%	17.68%
OCMAX OCM Gold Atlas	5.90%	5.91%	2.97%	0.00%	0.04%	0.95%	1.44%	5.66%	24.55%	6.72%	18.48%	0.05%

Frequently Asked Questions

Can I hold both OCMAX and GGN in my portfolio?

OCMAX and GGN 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, OCMAX or GGN?

OCMAX has higher volatility (16.55%) compared to GGN (7.17%). In terms of maximum drawdown, OCMAX dropped -76.26% vs GGN's -73.04%.

Which has better risk-adjusted returns?

OCMAX currently has the higher Sharpe Ratio (1.54 vs 0.70), 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.