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ISIN
US0682784071
CUSIP
068278407
Inception Date
Feb 29, 2000
Min. Investment
$2,000
Distribution Policy
Distributing
Asset Class
Equity
Asset Class Size
Large-Cap
Asset Class Style
Growth

Share Price Chart


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Performance

BIOPX Performance Chart

Baron Opportunity Fund (BIOPX) is up 16.8% since the beginning of the year. BIOPX is currently trading at $63 per share. Investors who bought $1,000 worth of BIOPX shares 5 years ago would now be looking at an investment worth $1,713.


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S&P 500 Index

Returns By Period

Baron Opportunity Fund (BIOPX) has returned 16.82% so far this year and 35.79% over the past 12 months. Looking at the last ten years, BIOPX has achieved an annualized return of 22.22%, outperforming the S&P 500 Index benchmark, which averaged 13.88% per year.


Baron Opportunity Fund

1D
0.77%
1M
9.55%
YTD
16.82%
6M
15.41%
1Y
35.79%
3Y*
28.78%
5Y*
11.36%
10Y*
22.22%

Benchmark (S&P 500 Index)

1D
-0.37%
1M
-0.01%
YTD
9.16%
6M
8.64%
1Y
25.22%
3Y*
19.78%
5Y*
11.99%
10Y*
13.88%
*Multi-year figures are annualized to reflect compound growth (CAGR)

BIOPX Monthly Returns History

Based on dividend-adjusted daily data since Feb 29, 2000, BIOPX's average daily return is +0.05%, while the average monthly return is +1.10%. At this rate, an investment would double in approximately 5.3 years.

Historically, 59% of months were positive and 41% were negative. The best month was Apr 2001 with a return of +28.9%, while the worst month was Sep 2001 at -22.8%. The longest winning streak lasted 13 consecutive months, and the longest losing streak was 5 months.

On a daily basis, BIOPX closed higher 53% of trading days. The best single day was Apr 9, 2025 with a return of +12.4%, while the worst single day was Mar 16, 2020 at -12.1%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026-3.35%-1.67%-4.19%10.60%8.72%6.70%16.82%
20253.90%-5.06%-10.80%2.75%12.11%6.95%3.19%-1.29%3.44%3.99%-2.59%3.23%19.44%
20242.64%10.19%1.90%-6.84%3.51%8.21%-1.11%0.83%4.28%1.09%8.88%1.62%39.87%
202310.39%-0.04%6.80%-1.69%11.45%6.11%3.74%-3.58%-5.13%-3.78%13.39%5.44%49.55%
2022-15.40%-3.06%2.33%-16.57%-5.80%-7.15%11.21%-2.17%-10.30%3.07%1.37%-8.67%-42.96%
20212.20%4.45%-5.55%6.05%-3.46%7.50%-1.28%2.78%-3.51%7.45%-2.20%-1.99%11.90%

Benchmark Metrics

Baron Opportunity Fund has an annualized alpha of 4.06%, beta of 1.16, and R2 of 0.74 versus S&P 500 Index. Calculated based on daily prices since February 29, 2000.

  • This fund captured 145.04% of S&P 500 Index gains and 119.57% of its losses - amplifying both gains and losses, but participating more in upside than downside.
  • This fund generated an annualized alpha of 4.06% versus S&P 500 Index - delivering returns beyond what market exposure alone would predict.

Alpha
4.06%
Beta
1.16
0.74
Upside Capture
145.04%
Downside Capture
119.57%

Expense Ratio

BIOPX has a high expense ratio of 1.31%, indicating above-average management fees.


Return for Risk

Risk / Return Rank

BIOPX ranks 41 for risk / return — on par with similar mutual funds. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.


BIOPX Risk / Return Rank: 4141
Overall Rank
BIOPX Sharpe Ratio Rank: 4141
Sharpe Ratio Rank
BIOPX Sortino Ratio Rank: 4040
Sortino Ratio Rank
BIOPX Omega Ratio Rank: 4040
Omega Ratio Rank
BIOPX Calmar Ratio Rank: 4646
Calmar Ratio Rank
BIOPX Martin Ratio Rank: 3939
Martin Ratio Rank
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.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for Baron Opportunity Fund (BIOPX) and compare them to S&P 500 Index.

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.


BIOPXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.30

Sortino ratioReturn per unit of downside risk

-0.29

Omega ratioGain probability vs. loss probability

1.31

1.37

-0.05

Calmar ratioReturn relative to maximum drawdown

2.47

2.78

-0.32

Martin ratioReturn relative to average drawdown

8.08

12.44

-4.35

Dividends

Dividend History

Baron Opportunity Fund provided a 3.63% dividend yield over the last twelve months, with an annual payout of $2.29 per share.


0.00%5.00%10.00%15.00%$0.00$1.00$2.00$3.00$4.0020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$2.29$2.29$2.33$0.00$0.00$3.60$2.78$1.68$0.93$2.65$1.89$1.82

Dividend yield

3.63%4.24%4.95%0.00%0.00%8.71%6.96%7.33%5.29%15.58%13.52%10.92%

Monthly Dividends

The table displays the monthly dividend distributions for Baron Opportunity Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.00$0.00$0.00$0.00$0.00$0.00$0.00
2025$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$2.29$2.29
2024$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$2.33$2.33
2023$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00
2022$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00
2021$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$3.60$0.00$3.60

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Baron Opportunity Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Baron Opportunity Fund was 67.91%, occurring on Oct 7, 2002. Recovery took 820 trading sessions.

The current Baron Opportunity Fund drawdown is 1.44%.


Related event

Drawdown

Fall

Recovery

Underwater

Dot-com crash2000–2002
-67.91%Oct 2002
2y 6mo3y 3mo
5y 10moMar 2000 - Jan 2006
Financial crisis2007–2009
-62.42%Nov 2008
1y 20d2y 18d
3y 1moNov 2007 - Dec 2010
2023 bear market2023
-51.45%Jan 2023
1y 1mo1y 10mo
2y 11moNov 2021 - Nov 2024
COVID crash2020
-30.26%Mar 2020
25d2mo 14d
3mo 9dFeb 2020 - May 2020
2016 bear market2016
-29.27%Feb 2016
6mo 22d1y 1mo
1y 8moJul 2015 - Apr 2017

Drawdown Indicators


BIOPXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-67.91%

-56.78%

-11.13%

Max Drawdown (1Y)

Largest decline over 1 year

-14.16%

-9.10%

-5.06%

Max Drawdown (3Y)

Largest decline over 3 years

-26.34%

-18.90%

-7.44%

Max Drawdown (5Y)

Largest decline over 5 years

-51.45%

-25.43%

-26.02%

Max Drawdown (10Y)

Largest decline over 10 years

-51.45%

-33.92%

-17.53%

Current Drawdown

Current decline from peak

-1.44%

-1.80%

+0.36%

Average Drawdown

Average peak-to-trough decline

-16.85%

-10.71%

-6.14%

Ulcer Index

Depth and duration of drawdowns from previous peaks

4.31%

2.03%

+2.28%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

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