BFTHX vs. BIOPX

Last updated Jun 4, 2026

BFTHX (Baron Fifth Avenue Growth Fund) and BIOPX (Baron Opportunity Fund) are both Large Cap Growth Equities funds from Baron Capital Group, Inc.. Over the past 10 years, BFTHX returned 16.10%/yr vs 21.51%/yr for BIOPX. Their correlation of 0.93 suggests significant overlap in exposure. BFTHX charges 1.00%/yr vs 1.31%/yr for BIOPX.

Performance

BFTHX vs. BIOPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Baron Fifth Avenue Growth Fund (BFTHX) and Baron Opportunity Fund (BIOPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with BFTHX having a 10.72% return and BIOPX slightly higher at 11.24%. Over the past 10 years, BFTHX has underperformed BIOPX with an annualized return of 16.10%, while BIOPX has yielded a comparatively higher 21.51% annualized return.

BFTHX

• 1D: -0.72%
• 1M: 8.63%
• YTD: 10.72%
• 6M: 9.92%
• 1Y: 27.08%
• 3Y*: 28.15%
• 5Y*: 8.91%
• 10Y*: 16.10%

BIOPX

• 1D: -0.05%
• 1M: 9.24%
• YTD: 11.24%
• 6M: 15.26%
• 1Y: 29.20%
• 3Y*: 28.25%
• 5Y*: 11.77%
• 10Y*: 21.51%

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

BFTHX vs. BIOPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BFTHX Baron Fifth Avenue Growth Fund	10.72%	18.01%	37.38%	57.20%	-50.62%	10.88%	50.42%	33.98%	1.10%	40.64%
BIOPX Baron Opportunity Fund	11.24%	19.44%	39.87%	49.55%	-42.96%	11.90%	88.78%	40.34%	8.06%	40.58%

Correlation

The correlation between BFTHX and BIOPX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since May 5, 2004	0.93

The correlation between BFTHX and BIOPX has been stable across timeframes, ranging from 0.93 to 0.97 - a consistent structural relationship.

Return for Risk

BFTHX vs. BIOPX — Risk / Return Rank

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

BFTHX

BFTHX Risk / Return Rank: 20
BFTHX Sharpe Ratio Rank: 21
BFTHX Sortino Ratio Rank: 20
BFTHX Omega Ratio Rank: 20
BFTHX Calmar Ratio Rank: 19
BFTHX Martin Ratio Rank: 18

BIOPX

BIOPX Risk / Return Rank: 32
BIOPX Sharpe Ratio Rank: 33
BIOPX Sortino Ratio Rank: 31
BIOPX Omega Ratio Rank: 32
BIOPX Calmar Ratio Rank: 32
BIOPX Martin Ratio Rank: 30

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.

BFTHX vs. BIOPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Baron Fifth Avenue Growth Fund (BFTHX) and Baron Opportunity Fund (BIOPX). 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.

	BFTHX	BIOPX	Difference
Sharpe ratio: Return per unit of total volatility	1.34	1.65	-0.32
Sortino ratio: Return per unit of downside risk	1.88	2.32	-0.44
Omega ratio: Gain probability vs. loss probability	1.23	1.30	-0.06
Calmar ratio: Return relative to maximum drawdown	1.57	2.14	-0.57
Martin ratio: Return relative to average drawdown	4.97	7.06	-2.09
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BFTHX vs. BIOPX - Sharpe Ratio Comparison

The current BFTHX Sharpe Ratio is 1.34, which is comparable to the BIOPX Sharpe Ratio of 1.65. The chart below compares the historical Sharpe Ratios of BFTHX and BIOPX, 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

	BFTHX	BIOPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.34	1.65	-0.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.29	0.44	-0.15
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.60	0.87	-0.27
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.41	+0.06

Drawdowns

BFTHX vs. BIOPX - Drawdown Comparison

The maximum BFTHX drawdown since its inception was -58.84%, smaller than the maximum BIOPX drawdown of -67.91%. Use the drawdown chart below to compare losses from any high point for BFTHX and BIOPX.

Drawdown Indicators

	BFTHX	BIOPX	Difference
Max Drawdown Largest peak-to-trough decline	-58.84%	-67.91%	+9.07%
Max Drawdown (1Y) Largest decline over 1 year	-17.62%	-14.16%	-3.46%
Max Drawdown (3Y) Largest decline over 3 years	-29.22%	-26.34%	-2.88%
Max Drawdown (5Y) Largest decline over 5 years	-58.84%	-51.45%	-7.39%
Max Drawdown (10Y) Largest decline over 10 years	-58.84%	-51.45%	-7.39%
Current Drawdown Current decline from peak	-0.72%	-0.05%	-0.67%
Average Drawdown Average peak-to-trough decline	-11.88%	-16.88%	+5.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.55%	4.27%	+1.28%

Volatility

BFTHX vs. BIOPX - Volatility Comparison

Baron Fifth Avenue Growth Fund (BFTHX) has a higher volatility of 4.39% compared to Baron Opportunity Fund (BIOPX) at 3.29%. This indicates that BFTHX's price experiences larger fluctuations and is considered to be riskier than BIOPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BFTHX	BIOPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.39%	3.29%	+1.10%
Volatility (6M) Calculated over the trailing 6-month period	14.71%	12.89%	+1.82%
Volatility (1Y) Calculated over the trailing 1-year period	20.70%	18.30%	+2.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.96%	26.69%	+4.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.11%	24.85%	+2.26%

BFTHX vs. BIOPX - Expense Ratio Comparison

BFTHX has a 1.00% expense ratio, which is lower than BIOPX's 1.31% expense ratio.

Dividends

BFTHX vs. BIOPX - Dividend Comparison

BFTHX's dividend yield for the trailing twelve months is around 3.71%, less than BIOPX's 3.81% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BFTHX Baron Fifth Avenue Growth Fund	3.71%	4.11%	0.79%	0.00%	0.00%	3.19%	0.36%	2.95%	0.00%	0.00%	0.00%	0.00%
BIOPX Baron Opportunity Fund	3.81%	4.24%	4.95%	0.00%	0.00%	8.71%	6.96%	7.33%	5.29%	15.58%	13.52%	10.92%

Frequently Asked Questions

Can I hold both BFTHX and BIOPX in my portfolio?

With a correlation of 0.95, BFTHX and BIOPX 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, BFTHX or BIOPX?

BFTHX has higher volatility (4.39%) compared to BIOPX (3.29%). In terms of maximum drawdown, BFTHX dropped -58.84% vs BIOPX's -67.91%.

Which has better risk-adjusted returns?

BIOPX currently has the higher Sharpe Ratio (1.65 vs 1.34), 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.