BARON OPPORTUNITY FUND
Fund
BIOIX
Price as of:
$64.77
+ $1.06
+ 1.66%
Primary Theme
fund company
Name
As of 06/01/2026Price
Aum/Mkt Cap
YIELD
Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.
Exp Ratio
Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.
Watchlist
Vitals
YTD Return
11.4%
1 yr return
30.5%
3 Yr Avg Return
28.6%
5 Yr Avg Return
11.8%
Net Assets
$1.8 B
Holdings in Top 10
58.9%
52 WEEK LOW AND HIGH
$63.7
N/A
N/A
Expenses
OPERATING FEES
Expense Ratio 1.05%
SALES FEES
Front Load N/A
Deferred Load N/A
TRADING FEES
Turnover 38.74%
Redemption Fee N/A
Min Investment
Standard (Taxable)
$1,000,000
IRA
N/A
Fund Classification
Fund Type
Open End Mutual Fund
Name
As of 06/01/2026Price
Aum/Mkt Cap
YIELD
Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.
Exp Ratio
Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.
Watchlist
BIOIX - Profile
Distributions
- YTD Total Return 11.4%
- 3 Yr Annualized Total Return 28.6%
- 5 Yr Annualized Total Return 11.8%
- Capital Gain Distribution Frequency Annually
- Net Income Ratio -0.93%
- Dividend Yield 0.0%
- Dividend Distribution Frequency Annual
Fund Details
-
Legal NameBARON OPPORTUNITY FUND
-
Fund Family NameBARONFUNDS
-
Inception DateMay 29, 2009
-
Shares OutstandingN/A
-
Share ClassInstl
-
CurrencyUSD
-
Domiciled CountryUS
-
ManagerMichael Lippert
Fund Description
The Fund is a diversified fund that, under normal circumstances, invests primarily in equity securities of U.S. high growth businesses of any market capitalization selected for their capital appreciation potential. BAMCO, Inc. (“BAMCO” or the “Adviser”) may invest in companies in any sector or industry that it believes will benefit from innovations and advances in technology. The Adviser seeks to invest in businesses it believes have significant opportunities for growth, sustainable competitive advantages, exceptional management, and an attractive valuation.
BIOIX - Performance
Return Ranking - Trailing
| Period | BIOIX Return | Category Return Low | Category Return High | Rank in Category (%) |
|---|---|---|---|---|
| YTD | 11.4% | -10.0% | 61.7% | 38.04% |
| 1 Yr | 30.5% | -13.2% | 127.7% | 23.43% |
| 3 Yr | 28.6%* | 2.8% | 66.8% | 11.69% |
| 5 Yr | 11.8%* | -8.2% | 36.6% | 54.99% |
| 10 Yr | 21.7%* | 6.8% | 24.6% | 2.48% |
* Annualized
Return Ranking - Calendar
| Period | BIOIX Return | Category Return Low | Category Return High | Rank in Category (%) |
|---|---|---|---|---|
| 2025 | 15.2% | -74.1% | 41.2% | 15.77% |
| 2024 | 34.3% | -59.2% | 52.3% | 10.09% |
| 2023 | 50.0% | -15.0% | 72.4% | 6.19% |
| 2022 | -42.8% | -85.9% | 27.3% | 89.13% |
| 2021 | 4.0% | -52.4% | 38.7% | 64.99% |
Total Return Ranking - Trailing
| Period | BIOIX Return | Category Return Low | Category Return High | Rank in Category (%) |
|---|---|---|---|---|
| YTD | 11.4% | -10.0% | 61.7% | 38.04% |
| 1 Yr | 30.5% | -13.2% | 127.7% | 23.43% |
| 3 Yr | 28.6%* | 2.8% | 66.8% | 11.69% |
| 5 Yr | 11.8%* | -8.2% | 36.6% | 54.99% |
| 10 Yr | 21.7%* | 6.8% | 24.6% | 2.48% |
* Annualized
Total Return Ranking - Calendar
| Period | BIOIX Return | Category Return Low | Category Return High | Rank in Category (%) |
|---|---|---|---|---|
| 2025 | 19.7% | -4.9% | 49.3% | 17.34% |
| 2024 | 40.3% | -31.9% | 52.3% | 7.93% |
| 2023 | 50.0% | -4.6% | 72.4% | 9.14% |
| 2022 | -42.8% | -61.7% | 35.0% | 95.11% |
| 2021 | 12.3% | -39.8% | 40.0% | 84.71% |
NAV & Total Return History
BIOIX - Holdings
Concentration Analysis
| BIOIX | Category Low | Category High | BIOIX % Rank | |
|---|---|---|---|---|
| Net Assets | 1.8 B | 1.46 M | 440 B | 52.54% |
| Number of Holdings | 50 | 2 | 2946 | 63.96% |
| Net Assets in Top 10 | 952 M | 1.51 M | 203 B | 53.48% |
| Weighting of Top 10 | 58.88% | 10.7% | 205.0% | 35.95% |
Top 10 Holdings
- NVIDIA Corp 13.26%
- SPACE EXPLORATION TECHNOLOGIES 6.61%
- Broadcom Inc 6.28%
- Amazon.com Inc 6.25%
- SPACE EXPLORATION TECH CORP 6.03%
- Tesla Inc 5.41%
- Spotify Technology SA 3.97%
- Meta Platforms Inc 3.86%
- Alphabet Inc 3.80%
- Eli Lilly Co 3.41%
Asset Allocation
| Weighting | Return Low | Return High | BIOIX % Rank | |
|---|---|---|---|---|
| Stocks | 92.93% | 0.00% | 116.50% | 93.83% |
| Preferred Stocks | 6.07% | 0.00% | 24.75% | 1.57% |
| Cash | 1.00% | 0.00% | 173.52% | 44.86% |
| Other | 0.00% | -24.61% | 25.67% | 26.84% |
| Convertible Bonds | 0.00% | 0.00% | 1.94% | 11.58% |
| Bonds | 0.00% | 0.00% | 99.61% | 14.89% |
Stock Sector Breakdown
| Weighting | Return Low | Return High | BIOIX % Rank | |
|---|---|---|---|---|
| Technology | 48.71% | 0.00% | 65.70% | 4.61% |
| Communication Services | 16.37% | 0.00% | 66.40% | 10.60% |
| Consumer Cyclical | 15.78% | 0.00% | 62.57% | 50.54% |
| Healthcare | 11.39% | 0.00% | 39.76% | 63.40% |
| Financial Services | 4.85% | 0.00% | 43.06% | 86.16% |
| Real Estate | 2.90% | 0.00% | 8.88% | 17.17% |
| Utilities | 0.00% | 0.00% | 16.07% | 36.31% |
| Industrials | 0.00% | 0.00% | 30.65% | 92.54% |
| Energy | 0.00% | 0.00% | 41.09% | 59.27% |
| Consumer Defense | 0.00% | 0.00% | 25.50% | 88.62% |
| Basic Materials | 0.00% | 0.00% | 18.91% | 75.27% |
Stock Geographic Breakdown
| Weighting | Return Low | Return High | BIOIX % Rank | |
|---|---|---|---|---|
| US | 92.93% | 0.00% | 116.50% | 85.80% |
| Non US | 0.00% | 0.00% | 39.07% | 32.91% |
BIOIX - Expenses
Operational Fees
| BIOIX Fees (% of AUM) | Category Return Low | Category Return High | Rank in Category (%) | |
|---|---|---|---|---|
| Expense Ratio | 1.05% | 0.01% | 13.08% | 38.25% |
| Management Fee | 1.00% | 0.00% | 1.50% | 95.36% |
| 12b-1 Fee | 0.00% | 0.00% | 1.00% | 0.58% |
| Administrative Fee | N/A | 0.01% | 1.02% | N/A |
Sales Fees
| BIOIX Fees (% of AUM) | Category Return Low | Category Return High | Rank in Category (%) | |
|---|---|---|---|---|
| Front Load | N/A | 2.25% | 5.75% | N/A |
| Deferred Load | N/A | 1.00% | 5.00% | N/A |
Trading Fees
| BIOIX Fees (% of AUM) | Category Return Low | Category Return High | Rank in Category (%) | |
|---|---|---|---|---|
| Max Redemption Fee | N/A | 1.00% | 2.00% | N/A |
Related Fees
Turnover provides investors a proxy for the trading fees incurred by mutual fund managers who frequently adjust position allocations. Higher turnover means higher trading fees.
| BIOIX Fees (% of AUM) | Category Return Low | Category Return High | Rank in Category (%) | |
|---|---|---|---|---|
| Turnover | 38.74% | 0.00% | 316.74% | 56.00% |
BIOIX - Distributions
Dividend Yield Analysis
| BIOIX | Category Low | Category High | BIOIX % Rank | |
|---|---|---|---|---|
| Dividend Yield | 0.00% | 0.00% | 27.58% | 48.29% |
Dividend Distribution Analysis
| BIOIX | Category Low | Category High | Category Mod | |
|---|---|---|---|---|
| Dividend Distribution Frequency | Annual | Annual | Annual | Annual |
Net Income Ratio Analysis
| BIOIX | Category Low | Category High | BIOIX % Rank | |
|---|---|---|---|---|
| Net Income Ratio | -0.93% | -6.13% | 3.48% | 85.47% |
Capital Gain Distribution Analysis
| BIOIX | Category Low | Category High | Capital Mode | |
|---|---|---|---|---|
| Capital Gain Distribution Frequency | Annually | Annually | Semi-Annually | Annually |
Distributions History
| Date | Amount | Type |
|---|---|---|
| Dec 16, 2025 | $2.287 | CapitalGainLongTerm |
| Dec 17, 2024 | $2.331 | CapitalGainLongTerm |
| Nov 23, 2021 | $3.603 | OrdinaryDividend |
| Nov 24, 2020 | $2.785 | OrdinaryDividend |
| Nov 26, 2019 | $1.676 | CapitalGainLongTerm |
| Nov 29, 2018 | $0.926 | CapitalGainLongTerm |
| Nov 28, 2017 | $2.649 | CapitalGainLongTerm |
| Nov 29, 2016 | $1.891 | CapitalGainLongTerm |
| Dec 03, 2015 | $1.817 | CapitalGainLongTerm |
| Dec 02, 2014 | $1.030 | CapitalGainLongTerm |
| Nov 26, 2013 | $0.588 | CapitalGainShortTerm |
| Nov 26, 2013 | $0.615 | CapitalGainLongTerm |
| Nov 29, 2012 | $0.113 | CapitalGainLongTerm |
BIOIX - Fund Manager Analysis
Managers
Michael Lippert
Start Date
Tenure
Tenure Rank
Mar 03, 2006
16.25
16.3%
Michael Lippert joined Baron in 2001 as a research analyst and was named portfolio manager in 2006. In 2020, he was named Head of Technology Research. He has 20 years of research experience. In 2001, he worked at JLF Asset Management as a financial analyst and general counsel. From 1991 to 2001, he worked at Baker & Botts as a trial partner. Michael graduated summa cum laude from Tufts University with a B.A. in History in 1988 and from Columbia Law School with a J.D. in 1991.
Tenure Analysis
| Category Low | Category High | Category Average | Category Mode |
|---|---|---|---|
| 0.04 | 54.45 | 8.24 | 2.92 |