OBEGX vs. OBSOX

Last updated Jun 24, 2026

OBEGX (Oberweis Global Opportunities Fund) and OBSOX (Oberweis Small-Cap Opportunities Fund) are both mutual funds - OBEGX is a Global Equities fund managed by Oberweis, while OBSOX is a Small Cap Growth Equities fund managed by Oberweis. Over the past 10 years, OBEGX returned 12.77%/yr vs 19.88%/yr for OBSOX. Their correlation of 0.90 suggests significant overlap in exposure. OBEGX charges 1.51%/yr vs 1.25%/yr for OBSOX.

Performance

OBEGX vs. OBSOX - Performance Comparison

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

Returns By Period

In the year-to-date period, OBEGX achieves a 31.52% return, which is significantly lower than OBSOX's 42.09% return. Over the past 10 years, OBEGX has underperformed OBSOX with an annualized return of 12.77%, while OBSOX has yielded a comparatively higher 19.88% annualized return.

OBEGX

• 1D: 1.40%
• 1M: 3.92%
• YTD: 31.52%
• 6M: 29.43%
• 1Y: 48.99%
• 3Y*: 20.64%
• 5Y*: 6.55%
• 10Y*: 12.77%

OBSOX

• 1D: 1.65%
• 1M: 8.07%
• YTD: 42.09%
• 6M: 38.71%
• 1Y: 64.25%
• 3Y*: 25.72%
• 5Y*: 17.41%
• 10Y*: 19.88%

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

OBEGX vs. OBSOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OBEGX Oberweis Global Opportunities Fund	31.52%	19.32%	10.72%	6.40%	-26.76%	20.80%	55.68%	25.67%	-25.62%	33.35%
OBSOX Oberweis Small-Cap Opportunities Fund	42.09%	14.28%	16.13%	15.81%	-11.17%	43.39%	32.52%	25.06%	-7.05%	25.55%

Correlation

The correlation between OBEGX and OBSOX is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Sep 16, 1996	0.90

The correlation between OBEGX and OBSOX has been stable across timeframes, ranging from 0.88 to 0.92 - a consistent structural relationship.

Return for Risk

OBEGX vs. OBSOX — Risk / Return Rank

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

OBEGX

OBEGX Risk / Return Rank: 79
OBEGX Sharpe Ratio Rank: 79
OBEGX Sortino Ratio Rank: 69
OBEGX Omega Ratio Rank: 64
OBEGX Calmar Ratio Rank: 91
OBEGX Martin Ratio Rank: 89

OBSOX

OBSOX Risk / Return Rank: 81
OBSOX Sharpe Ratio Rank: 83
OBSOX Sortino Ratio Rank: 68
OBSOX Omega Ratio Rank: 63
OBSOX Calmar Ratio Rank: 96
OBSOX Martin Ratio Rank: 96

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.

OBEGX vs. OBSOX - Risk-Adjusted Trends Comparison

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

	OBEGX	OBSOX	Difference
Sharpe ratio: Return per unit of total volatility	2.40	2.50	-0.10
Sortino ratio: Return per unit of downside risk	3.16	3.13	+0.04
Omega ratio: Gain probability vs. loss probability	1.40	1.40	0.00
Calmar ratio: Return relative to maximum drawdown	4.54	5.84	-1.30
Martin ratio: Return relative to average drawdown	16.25	21.31	-5.05

OBEGX vs. OBSOX - Sharpe Ratio Comparison

The current OBEGX Sharpe Ratio is 2.40, which is comparable to the OBSOX Sharpe Ratio of 2.50. The chart below compares the historical Sharpe Ratios of OBEGX and OBSOX, 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

OBEGX vs. OBSOX - Drawdown Comparison

The maximum OBEGX drawdown since its inception was -83.07%, roughly equal to the maximum OBSOX drawdown of -80.52%. Use the drawdown chart below to compare losses from any high point for OBEGX and OBSOX.

Drawdown Indicators

	OBEGX	OBSOX	Difference
Max Drawdown Largest peak-to-trough decline	-83.07%	-80.52%	-2.55%
Max Drawdown (1Y) Largest decline over 1 year	-11.24%	-11.40%	+0.16%
Max Drawdown (3Y) Largest decline over 3 years	-25.41%	-27.74%	+2.33%
Max Drawdown (5Y) Largest decline over 5 years	-39.68%	-28.65%	-11.03%
Max Drawdown (10Y) Largest decline over 10 years	-41.54%	-42.79%	+1.25%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-33.67%	-30.50%	-3.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.14%	3.11%	+0.03%

Volatility

OBEGX vs. OBSOX - Volatility Comparison

The current volatility for Oberweis Global Opportunities Fund (OBEGX) is 7.45%, while Oberweis Small-Cap Opportunities Fund (OBSOX) has a volatility of 9.31%. This indicates that OBEGX experiences smaller price fluctuations and is considered to be less risky than OBSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OBEGX	OBSOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.45%	9.31%	-1.86%
Volatility (6M) Calculated over the trailing 6-month period	17.03%	21.60%	-4.57%
Volatility (1Y) Calculated over the trailing 1-year period	21.31%	26.68%	-5.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.35%	25.28%	-1.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.70%	24.89%	-2.19%

OBEGX vs. OBSOX - Expense Ratio Comparison

OBEGX has a 1.51% expense ratio, which is higher than OBSOX's 1.25% expense ratio.

Dividends

OBEGX vs. OBSOX - Dividend Comparison

OBEGX's dividend yield for the trailing twelve months is around 9.62%, while OBSOX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OBEGX Oberweis Global Opportunities Fund	9.62%	12.66%	0.00%	0.00%	2.64%	25.09%	5.80%	0.00%	6.68%	13.37%	1.12%	14.32%
OBSOX Oberweis Small-Cap Opportunities Fund	0.00%	0.00%	0.80%	0.00%	0.17%	21.88%	4.05%	3.04%	28.22%	6.36%	4.24%	11.91%

Frequently Asked Questions

Can I hold both OBEGX and OBSOX in my portfolio?

With a correlation of 0.92, OBEGX and OBSOX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, OBEGX or OBSOX?

OBSOX has higher volatility (9.31%) compared to OBEGX (7.45%). In terms of maximum drawdown, OBEGX dropped -83.07% vs OBSOX's -80.52%.

Which has better risk-adjusted returns?

OBSOX currently has the higher Sharpe Ratio (2.50 vs 2.40), 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.