BFGFX vs. OBMCX

Last updated Jun 4, 2026

BFGFX (Baron Focused Growth Fund) and OBMCX (Oberweis Micro Cap Fund) are both mutual funds - BFGFX is a Mid Cap Growth Equities fund managed by Baron Capital Group, Inc., while OBMCX is a Small Cap Growth Equities fund managed by Oberweis. Over the past 10 years, BFGFX returned 20.90%/yr vs 21.63%/yr for OBMCX. A 0.68 correlation means they provide meaningful diversification when combined. BFGFX charges 1.32%/yr vs 1.48%/yr for OBMCX.

Performance

BFGFX vs. OBMCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Baron Focused Growth Fund (BFGFX) and Oberweis Micro Cap Fund (OBMCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BFGFX achieves a 1.84% return, which is significantly lower than OBMCX's 45.67% return. Both investments have delivered pretty close results over the past 10 years, with BFGFX having a 20.90% annualized return and OBMCX not far ahead at 21.63%.

BFGFX

• 1D: -1.89%
• 1M: 6.00%
• YTD: 1.84%
• 6M: 12.90%
• 1Y: 21.99%
• 3Y*: 20.72%
• 5Y*: 12.80%
• 10Y*: 20.90%

OBMCX

• 1D: 2.91%
• 1M: 3.70%
• YTD: 45.67%
• 6M: 45.60%
• 1Y: 77.10%
• 3Y*: 29.76%
• 5Y*: 19.97%
• 10Y*: 21.63%

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

BFGFX vs. OBMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BFGFX Baron Focused Growth Fund	1.84%	21.94%	29.52%	27.40%	-28.21%	18.67%	122.38%	30.05%	3.76%	26.36%
OBMCX Oberweis Micro Cap Fund	45.67%	14.70%	22.82%	18.87%	-10.57%	53.20%	29.91%	21.94%	-12.04%	27.90%

Correlation

The correlation between BFGFX and OBMCX is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.47
Correlation (3Y) Calculated over the trailing 3-year period	0.66
Correlation (5Y) Calculated over the trailing 5-year period	0.74
Correlation (10Y) Calculated over the trailing 10-year period	0.72
Correlation (All Time) Calculated using the full available price history since Apr 1, 2004	0.68

Over the past year, the correlation between BFGFX and OBMCX has dropped to 0.47 - well below their long-term average of 0.68, suggesting their price drivers have been diverging.

Return for Risk

BFGFX vs. OBMCX — Risk / Return Rank

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

BFGFX

BFGFX Risk / Return Rank: 26
BFGFX Sharpe Ratio Rank: 17
BFGFX Sortino Ratio Rank: 28
BFGFX Omega Ratio Rank: 23
BFGFX Calmar Ratio Rank: 38
BFGFX Martin Ratio Rank: 25

OBMCX

OBMCX Risk / Return Rank: 90
OBMCX Sharpe Ratio Rank: 94
OBMCX Sortino Ratio Rank: 83
OBMCX Omega Ratio Rank: 78
OBMCX Calmar Ratio Rank: 96
OBMCX Martin Ratio Rank: 97

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.

BFGFX vs. OBMCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Baron Focused Growth Fund (BFGFX) and Oberweis Micro Cap Fund (OBMCX). 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.

	BFGFX	OBMCX	Difference
Sharpe ratio Return per unit of total volatility	1.19	3.24	-2.05
Sortino ratio Return per unit of downside risk	2.18	3.90	-1.73
Omega ratio Gain probability vs. loss probability	1.25	1.51	-0.26
Calmar ratio Return relative to maximum drawdown	2.32	6.47	-4.14
Martin ratio Return relative to average drawdown	6.26	25.98	-19.72
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BFGFX vs. OBMCX - Sharpe Ratio Comparison

The current BFGFX Sharpe Ratio is 1.19, which is lower than the OBMCX Sharpe Ratio of 3.24. The chart below compares the historical Sharpe Ratios of BFGFX and OBMCX, 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

	BFGFX	OBMCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.19	3.24	-2.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.58	0.77	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.87	0.84	+0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.70	0.45	+0.25

Drawdowns

BFGFX vs. OBMCX - Drawdown Comparison

The maximum BFGFX drawdown since its inception was -59.52%, smaller than the maximum OBMCX drawdown of -68.24%. Use the drawdown chart below to compare losses from any high point for BFGFX and OBMCX.

Drawdown Indicators

	BFGFX	OBMCX	Difference
Max Drawdown Largest peak-to-trough decline	-59.52%	-68.24%	+8.72%
Max Drawdown (1Y) Largest decline over 1 year	-9.74%	-12.45%	+2.71%
Max Drawdown (3Y) Largest decline over 3 years	-21.00%	-28.11%	+7.11%
Max Drawdown (5Y) Largest decline over 5 years	-35.93%	-28.11%	-7.82%
Max Drawdown (10Y) Largest decline over 10 years	-43.62%	-50.04%	+6.42%
Current Drawdown Current decline from peak	-1.89%	0.00%	-1.89%
Average Drawdown Average peak-to-trough decline	-12.37%	-16.42%	+4.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.61%	3.09%	+0.52%

Volatility

BFGFX vs. OBMCX - Volatility Comparison

The current volatility for Baron Focused Growth Fund (BFGFX) is 5.18%, while Oberweis Micro Cap Fund (OBMCX) has a volatility of 8.26%. This indicates that BFGFX experiences smaller price fluctuations and is considered to be less risky than OBMCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BFGFX	OBMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.18%	8.26%	-3.08%
Volatility (6M) Calculated over the trailing 6-month period	15.67%	18.66%	-2.99%
Volatility (1Y) Calculated over the trailing 1-year period	19.05%	24.89%	-5.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.34%	26.20%	-3.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.99%	25.88%	-1.89%

BFGFX vs. OBMCX - Expense Ratio Comparison

BFGFX has a 1.32% expense ratio, which is lower than OBMCX's 1.48% expense ratio.

Dividends

BFGFX vs. OBMCX - Dividend Comparison

BFGFX has not paid dividends to shareholders, while OBMCX's dividend yield for the trailing twelve months is around 0.97%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BFGFX Baron Focused Growth Fund	0.00%	0.00%	0.00%	0.00%	12.28%	15.53%	2.85%	1.78%	1.07%	2.11%	6.02%	5.80%
OBMCX Oberweis Micro Cap Fund	0.97%	1.41%	2.53%	0.00%	1.37%	24.35%	0.00%	0.00%	19.67%	11.76%	0.05%	3.07%

Frequently Asked Questions

Can I hold both BFGFX and OBMCX in my portfolio?

BFGFX and OBMCX have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BFGFX or OBMCX?

OBMCX has higher volatility (8.26%) compared to BFGFX (5.18%). In terms of maximum drawdown, BFGFX dropped -59.52% vs OBMCX's -68.24%.

Which has better risk-adjusted returns?

OBMCX currently has the higher Sharpe Ratio (3.24 vs 1.19), 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.