MGLBX vs. OBEGX

Last updated Jun 5, 2026

MGLBX (Marsico Global Fund) and OBEGX (Oberweis Global Opportunities Fund) are both Global Equities funds. Over the past 10 years, MGLBX returned 19.64%/yr vs 11.89%/yr for OBEGX. Their correlation of 0.80 suggests significant overlap in exposure. MGLBX charges 1.45%/yr vs 1.51%/yr for OBEGX.

Performance

MGLBX vs. OBEGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Marsico Global Fund (MGLBX) and Oberweis Global Opportunities Fund (OBEGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MGLBX achieves a 15.82% return, which is significantly lower than OBEGX's 27.35% return. Over the past 10 years, MGLBX has outperformed OBEGX with an annualized return of 19.64%, while OBEGX has yielded a comparatively lower 11.89% annualized return.

MGLBX

• 1D: -1.15%
• 1M: 6.58%
• YTD: 15.82%
• 6M: 17.39%
• 1Y: 27.48%
• 3Y*: 32.02%
• 5Y*: 13.82%
• 10Y*: 19.64%

OBEGX

• 1D: -1.23%
• 1M: 2.43%
• YTD: 27.35%
• 6M: 24.56%
• 1Y: 45.38%
• 3Y*: 19.62%
• 5Y*: 6.51%
• 10Y*: 11.89%

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

MGLBX vs. OBEGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGLBX Marsico Global Fund	15.82%	27.15%	40.57%	35.38%	-34.54%	10.96%	81.92%	27.18%	-4.50%	40.25%
OBEGX Oberweis Global Opportunities Fund	27.35%	19.32%	10.72%	6.40%	-26.76%	20.80%	55.68%	25.67%	-25.62%	33.35%

Correlation

The correlation between MGLBX and OBEGX is 0.73, 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	0.73
Correlation (3Y) Calculated over the trailing 3-year period	0.74
Correlation (5Y) Calculated over the trailing 5-year period	0.80
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Jul 2, 2007	0.80

The correlation between MGLBX and OBEGX has been stable across timeframes, ranging from 0.73 to 0.80 - a consistent structural relationship.

Return for Risk

MGLBX vs. OBEGX — Risk / Return Rank

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

MGLBX

MGLBX Risk / Return Rank: 29
MGLBX Sharpe Ratio Rank: 27
MGLBX Sortino Ratio Rank: 27
MGLBX Omega Ratio Rank: 26
MGLBX Calmar Ratio Rank: 28
MGLBX Martin Ratio Rank: 37

OBEGX

OBEGX Risk / Return Rank: 68
OBEGX Sharpe Ratio Rank: 63
OBEGX Sortino Ratio Rank: 55
OBEGX Omega Ratio Rank: 53
OBEGX Calmar Ratio Rank: 87
OBEGX Martin Ratio Rank: 83

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.

MGLBX vs. OBEGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Marsico Global Fund (MGLBX) and Oberweis Global Opportunities Fund (OBEGX). 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.

	MGLBX	OBEGX	Difference
Sharpe ratio: Return per unit of total volatility	1.48	2.29	-0.81
Sortino ratio: Return per unit of downside risk	2.15	3.07	-0.91
Omega ratio: Gain probability vs. loss probability	1.27	1.39	-0.12
Calmar ratio: Return relative to maximum drawdown	1.94	4.17	-2.23
Martin ratio: Return relative to average drawdown	8.06	15.08	-7.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MGLBX vs. OBEGX - Sharpe Ratio Comparison

The current MGLBX Sharpe Ratio is 1.48, which is lower than the OBEGX Sharpe Ratio of 2.29. The chart below compares the historical Sharpe Ratios of MGLBX and OBEGX, 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

	MGLBX	OBEGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.48	2.29	-0.81
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.63	0.28	+0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.85	0.53	+0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.24	+0.33

Drawdowns

MGLBX vs. OBEGX - Drawdown Comparison

The maximum MGLBX drawdown since its inception was -59.60%, smaller than the maximum OBEGX drawdown of -83.07%. Use the drawdown chart below to compare losses from any high point for MGLBX and OBEGX.

Drawdown Indicators

	MGLBX	OBEGX	Difference
Max Drawdown Largest peak-to-trough decline	-59.60%	-83.07%	+23.47%
Max Drawdown (1Y) Largest decline over 1 year	-14.92%	-11.24%	-3.68%
Max Drawdown (3Y) Largest decline over 3 years	-20.66%	-25.41%	+4.75%
Max Drawdown (5Y) Largest decline over 5 years	-43.08%	-39.68%	-3.40%
Max Drawdown (10Y) Largest decline over 10 years	-43.08%	-41.54%	-1.54%
Current Drawdown Current decline from peak	-1.15%	-1.23%	+0.08%
Average Drawdown Average peak-to-trough decline	-11.56%	-33.71%	+22.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.58%	3.10%	+0.48%

Volatility

MGLBX vs. OBEGX - Volatility Comparison

Marsico Global Fund (MGLBX) and Oberweis Global Opportunities Fund (OBEGX) have volatilities of 6.76% and 7.06%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGLBX	OBEGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.76%	7.06%	-0.30%
Volatility (6M) Calculated over the trailing 6-month period	16.14%	15.99%	+0.15%
Volatility (1Y) Calculated over the trailing 1-year period	19.56%	20.49%	-0.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.97%	23.20%	-1.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.06%	22.63%	+0.43%

MGLBX vs. OBEGX - Expense Ratio Comparison

MGLBX has a 1.45% expense ratio, which is lower than OBEGX's 1.51% expense ratio.

Dividends

MGLBX vs. OBEGX - Dividend Comparison

MGLBX's dividend yield for the trailing twelve months is around 10.47%, more than OBEGX's 9.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MGLBX Marsico Global Fund	10.47%	12.13%	3.42%	1.98%	4.37%	17.97%	24.53%	0.00%	1.16%	9.25%	0.00%	11.04%
OBEGX Oberweis Global Opportunities Fund	9.94%	12.66%	0.00%	0.00%	2.64%	25.09%	5.80%	0.00%	6.68%	13.37%	1.12%	14.32%

Frequently Asked Questions

Can I hold both MGLBX and OBEGX in my portfolio?

MGLBX and OBEGX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MGLBX or OBEGX?

OBEGX has higher volatility (7.06%) compared to MGLBX (6.76%). In terms of maximum drawdown, MGLBX dropped -59.60% vs OBEGX's -83.07%.

Which has better risk-adjusted returns?

OBEGX currently has the higher Sharpe Ratio (2.29 vs 1.48), 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.