BIOPX vs. BGRIX
BIOPX (Baron Opportunity Fund) and BGRIX (Baron Growth Fund Institutional Shares) are both mutual funds - BIOPX is a Large Cap Growth Equities fund managed by Baron Capital, while BGRIX is a Mid Cap Growth Equities fund managed by Baron Capital. Over the past 10 years, BIOPX returned 20.71%/yr vs 7.46%/yr for BGRIX. Their 0.77 correlation means they have sometimes moved together and sometimes differently. BIOPX charges 1.31%/yr vs 1.05%/yr for BGRIX.
Performance
BIOPX vs. BGRIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, BIOPX achieves a 7.45% return, which is significantly higher than BGRIX's -6.83% return. Over the past 10 years, BIOPX has outperformed BGRIX with an annualized return of 20.71%, while BGRIX has yielded a comparatively lower 7.46% annualized return.
BIOPX
- 1D
- 2.71%
- 1M
- -4.92%
- 6M
- 12.16%
- YTD
- 7.45%
- 1Y
- 14.64%
- 3Y*
- 25.17%
- 5Y*
- 9.34%
- 10Y*
- 20.71%
- ALL TIME*
- 10.45%
BGRIX
- 1D
- 0.77%
- 1M
- 2.33%
- 6M
- 1.19%
- YTD
- -6.83%
- 1Y
- -15.40%
- 3Y*
- -4.53%
- 5Y*
- -4.37%
- 10Y*
- 7.46%
- ALL TIME*
- 10.49%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
BIOPX vs. BGRIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BIOPX Baron Opportunity Fund | 7.45% | 19.44% | 39.87% | 49.55% | -42.96% | 11.90% | 88.78% | 40.34% | 8.06% | 40.58% |
BGRIX Baron Growth Fund Institutional Shares | -6.83% | -14.21% | 4.90% | 14.97% | -22.35% | 20.13% | 33.10% | 40.54% | -2.68% | 27.45% |
Correlation
The correlation between BIOPX and BGRIX is 0.08, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.08 |
Correlation (3Y) Balances recent behavior with more history. | 0.36 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.60 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.69 |
Correlation (All Time) Calculated using the full available price history since May 29, 2009 | 0.77 |
Over the past year, the correlation between BIOPX and BGRIX has dropped to 0.08 - well below their long-term average of 0.77, suggesting their price drivers have been diverging.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
BIOPX vs. BGRIX — Risk / Return Rank
BIOPX
BGRIX
BIOPX vs. BGRIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Baron Opportunity Fund (BIOPX) and Baron Growth Fund Institutional Shares (BGRIX). 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.
| BIOPX | BGRIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.40 | ||
| Sortino ratioReturn per unit of downside risk | +2.01 | ||
| Omega ratioGain probability vs. loss probability | 1.16 | 0.91 | +0.24 |
| Calmar ratioReturn relative to maximum drawdown | 1.21 | -0.56 | +1.77 |
| Martin ratioReturn relative to average drawdown | 3.35 | -0.93 | +4.28 |
Loading charts...
Drawdowns
BIOPX vs. BGRIX - Drawdown Comparison
The maximum BIOPX drawdown since its inception was -67.91%, which is greater than BGRIX's maximum drawdown of -41.12%. Use the drawdown chart below to compare losses from any high point for BIOPX and BGRIX.
Loading charts...
Drawdown Indicators
| BIOPX | BGRIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -67.91% | -41.12% | -26.79% |
Max Drawdown (1Y)Largest decline over 1 year | -14.31% | -23.63% | +9.32% |
Max Drawdown (3Y)Largest decline over 3 years | -26.34% | -32.70% | +6.36% |
Max Drawdown (5Y)Largest decline over 5 years | -51.45% | -34.60% | -16.85% |
Max Drawdown (10Y)Largest decline over 10 years | -51.45% | -41.12% | -10.33% |
Current DrawdownCurrent decline from peak | -9.35% | -26.33% | +16.98% |
Average DrawdownAverage peak-to-trough decline | -16.81% | -7.74% | -9.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.18% | 14.61% | -9.43% |
Volatility
BIOPX vs. BGRIX - Volatility Comparison
The current volatility for Baron Opportunity Fund (BIOPX) is 6.90%, while Baron Growth Fund Institutional Shares (BGRIX) has a volatility of 10.20%. This indicates that BIOPX experiences smaller price fluctuations and is considered to be less risky than BGRIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| BIOPX | BGRIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.90% | 10.20% | -3.30% |
Volatility (6M)Calculated over the trailing 6-month period | 16.72% | 19.45% | -2.73% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.66% | 22.85% | -1.19% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.19% | 20.91% | +6.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.06% | 21.47% | +3.59% |
BIOPX vs. BGRIX - Expense Ratio Comparison
BIOPX has a 1.31% expense ratio, which is higher than BGRIX's 1.05% expense ratio.
Dividends
BIOPX vs. BGRIX - Dividend Comparison
BIOPX's dividend yield for the trailing twelve months is around 3.94%, less than BGRIX's 21.17% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BGRIX Baron Growth Fund Institutional Shares | 21.17% | 19.72% | 11.30% | 1.69% | 5.72% | 7.38% | 4.45% | 3.55% | 8.12% | 11.36% | 12.56% | 9.37% |
BIOPX Baron Opportunity Fund | 3.94% | 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
BIOPX and BGRIX have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGRIX has higher volatility (10.20%) compared to BIOPX (6.90%). In terms of maximum drawdown, BIOPX dropped -67.91% vs BGRIX's -41.12%.
BIOPX currently has the higher Sharpe Ratio (0.80 vs -0.60), 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.
Find the right allocation for BIOPX and BGRIX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer