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Baron Opportunity Fund

Symbol BIOIXCUSIP: 068278886
Symbol BIOIXCUSIP: 068278886
A
All-Cap Growth

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$65.89

Daily Change $0.54 (0.83%)
As of 08/25/2026

Net Assets

$2.12 B

As of 06/30/2026

Morningstar Rating™*

As of 07/31/2026

Morningstar Medalist Rating™

medal Logo

SILVER

Inception date

02/29/2000

Prices & Performance

PricesAs of 08/25/2026

NAVDaily Change ($)Daily Change (%)MTDQTDYTD
$65.89$0.540.83%8.19%-2.11%13.35%
NAV$65.89
Daily Change ($)$0.54
Daily Change (%)0.83%
MTD8.19%
QTD-2.11%
YTD13.35%

PerformanceAs of 06/30/2026

Portfolio or IndexQTD1YTD11 Year3 Years5 Years10 YearsSince Inception 02/29/2000
BIOIX - Baron Opportunity Fund - I27.07%15.79%27.75%28.57%11.00%22.50%11.01%
Russell 3000 Growth Index17.05%5.88%18.24%22.26%13.17%18.13%8.15%
S&P 500 Index15.20%10.21%22.32%20.61%13.41%15.51%8.66%

Performance InformationAs of 06/30/2026

Performance statistics3 Years5 Years10 Years
Standard Deviation (%)19.4922.8421.03
Sharpe Ratio1.220.320.96
Alpha (%)3.85-2.522.93
Beta1.091.101.08
R-Squared (%)84.3185.1582.86
Tracking Error (%)7.859.008.82
Information Ratio0.80-0.240.50
Upside Capture (%)112.5199.03110.58
Downside Capture (%)93.89107.2699.21
Except for Standard Deviation and Sharpe Ratio, the performance based-characteristics above were calculated relative to the Baron Opportunity Fund's(BIOIX) benchmark (Russell 3000 Growth Index). Performance statistics for additional periods will be provided on request. Source FactSet: SPAR.

Risk & Return09/30/2022 - 09/30/2025

Portfolio Holdings & Characteristics

HoldingsAs of 07/31/2026

HoldingSector% of Net Assets
Space Exploration Technologies Corp.
Space Exploration Technologies Corp. (SpaceX) designs, manufactures, and launches rockets, satellites, and spacecrafts. Its ultimate goal is to make humanity multi-planetary. Products include reusable orbital launch offerings and a broadband service leveraging its satellite constellation, Starlink.
SpaceX is redefining the future as a vertically integrated leader in space, global connectivity, and AI. Rocket reusability fuels SpaceX's industry-leading launch cadence and scale while driving down cost—enabling rapid Starlink growth across global broadband, mobile services, and next-gen satellite constellations. Looking ahead, orbital AI may offer solar-powered compute at unprecedented scale and efficiency. Together with its in-house chip innovation and platforms like Grok, Macrohard, and Cursor, SpaceX is well-positioned to be a key player in the AI revolution.
Communication Services13.4%
NVIDIA Corporation
NVIDIA Corporation (NVDA) sells semiconductors, systems, and software for accelerated computing, gaming, and generative AI.
Computing demand has been doubling every one to two years, driven by electrification, digitization, and recent advancements in AI, yet supply growth has decelerated dramatically due to the slowdown in Moore's law. NVIDIA’s accelerated computing architecture enables continued growth in computing capacity through parallelization. We are at the tipping point of a new era in computing, with NVIDIA at its epicenter as generative AI adoption grows. With leading market share in gaming, data centers, and autonomous machines, we think NVIDIA is well positioned for long-term growth.
Information Technology12.8%
Broadcom Inc.
Broadcom Inc. (AVGO) designs, develops, and supplies a wide range of semiconductor and infrastructure software solutions. Its semiconductor devices serve broadband, networking, wireless, storage, and industrial markets, while its software offerings focus on operational efficiency tools for large enterprises.
Broadcom’s semiconductor portfolio is reaching an inflection point, driven by its AI solutions in networking and custom compute. We expect Broadcom to capture a significant share of most of the custom AI chips market, a market opportunity of hundreds of billions, and to grow VMware at a high-teens rate over the next few years. The rest of Broadcom’s semiconductor business is recovering, and we expect other software segments to grow at a mid-single-digit rate. The company has best-in-class margins and cash flow, which it returns to shareholders.
Information Technology6.6%
Amazon.com, Inc.
Amazon.com, Inc. (AMZN) is an e-commerce pioneer, innovator, and market share leader with a relentless focus on providing value and convenience to its customers. Amazon also operates the industry-leading cloud infrastructure business Amazon Web Services (AWS). 
Amazon's market share of U.S. online retail sales is around 45%, while its share of global retail sales is less than 5%. Amazon has many avenues for revenue growth, including consumer staples, international expansion, grocery, digital media offerings, private label, pharmacy and health care services, advertising, and a better shopping experience powered by generative AI. Amazon also represents an opportunity to invest in the secular growth of cloud computing and the adoption of enterprise AI through AWS — a large, fast-growing, and margin-accretive part of the business. 
Consumer Discretionary6.1%
Alphabet Inc.
Alphabet Inc. (GOOGL) is the parent of Google, the world’s leading online search provider. Its products and services include advertising, Android, Chrome, Google Cloud, Google Maps, Google Play, and YouTube. Other Bets includes businesses such as Waymo and CapitalG.
Alphabet should remain a major beneficiary of the shift in advertising from traditional media to online and mobile platforms. Its vast datasets improve products and support expansion into adjacent markets. Alphabet’s scale, distribution, and technical talent position it to benefit from AI across Search and Google Cloud. YouTube provides exposure to the shift toward connected TV, while Waymo remains a leader in autonomous driving.
Communication Services4.9%
Spotify Technology S.A.
Spotify Technology S.A. (SPOT) is the world's leading music streaming service, with approximately 40% market share. The company monetizes through several tiers of subscriptions, advertising, and miscellaneous a la carte pricing. 
With over 290 million paying subscribers, Spotify has created a two-sided marketplace where creators can monetize their work and consumers can stream music. Longer term, we expect the company to grow to over 1 billion users (from 761 million today) and improve margins materially through advertising, its artist promotions marketplace, audiobooks, and improved cost discipline. We expect Spotify to continually improve its value proposition through additional features like video, and monetize this value through more optimized pricing tiers.
Communication Services4.0%
Tesla, Inc.
Tesla, Inc. (TSLA) manufactures electric vehicles including sedans, SUVs/CUVs, a pickup truck, and a semi-truck. The company is also ramping up internal battery cell production, energy solutions, robotics offerings such as full self-driving and humanoids, and renewable energy generation and storage solutions.
We expect Tesla to continue growing its automotive business as it benefits from the secular adoption of electric vehicles, vertical integration, technological innovation, and cost advantages. The company is also leveraging its core automotive technologies to address the rapidly growing energy storage segment. In addition, Tesla's software and AI expertise is broadening the industrial opportunity to large and profitable revenue avenues that were previously locked in the legacy vehicle architecture, such as autonomous driving, robotics, insurance, and other AI use cases.
Consumer Discretionary3.8%
Eli Lilly and Company
Eli Lilly and Company (LLY) is a global pharmaceutical company developing and marketing medicines in diabetes and obesity, oncology, immunology, and neuroscience. It is best known for its GIP/GLP-1 receptor agonists for diabetes and obesity.
We invest in Lilly for its exposure to high-growth categories, including diabetes, obesity, and oncology. Mounjaro and Zepbound, dual GIP/GLP-1 receptor agonists, provide strong glucose control and can produce average weight loss of about 20% at the highest dose in adults with obesity. Tirzepatide has also shown cardiovascular benefits in select high-risk populations. We believe incretin therapies will become standard care for diabetes and obesity, creating a market we estimate could exceed $150 billion.
Health Care3.7%
Meta Platforms, Inc.
Meta Platforms, Inc. (META) owns Facebook, the world’s largest social network, as well as Instagram, Messenger, WhatsApp, and Meta Quest. Across its family of apps, Meta reaches 3.6 billion people daily.
Meta owns differentiated social platforms with large, highly engaged user bases. Advertisers follow user attention, and Meta’s ability to target ads and demonstrate attractive returns makes its platforms particularly valuable. We believe the company has substantial room to further monetize its global user base, especially outside the U.S. Meta could also emerge as a leader in consumer AI, with multiple paths to product integration and monetization.
Communication Services3.1%
Taiwan Semiconductor Manufacturing Company Limited
Taiwan Semiconductor Manufacturing Company Limited (TSM), known as TSMC, is the world's largest independent semiconductor foundry, manufacturing chips on behalf of other companies.
TSMC is the dominant force in leading-edge semiconductor foundry manufacturing, as it benefits from economies of scale and a superior cost structure. The company's successful track record of deploying new technology faster than competitors helps it maintain market share and pricing power. We believe TSMC’s investments in advanced nodes will strengthen its market leadership and support long-term profitability.
Information Technology2.6%
Total
60.9%
Top Ten Fund Holdings based on net assets. Portfolio holdings may change over time.
Portfolio holdings are subject to change. Current and future portfolio holdings are subject to risk.

Contributors / DetractorsQuarterly as of 06/30/2026

Top ContributorsAverage WeightContribution
Space Exploration Technologies Corp.15.01%7.84%
NVIDIA Corporation13.32%2.43%
Broadcom Inc.6.90%1.91%
Datadog, Inc.1.80%1.64%
Amazon.com, Inc.6.35%1.30%
Source: FactSet PA.

GICS Sector BreakdownAs of 07/31/2026

Sector

Information Technology

44.2%

Communication Services

25.4%

Consumer Discretionary

10.5%

Health Care

9.2%

Industrials

4.6%

Financials

4.2%

Real Estate

0.9%

Utilities

0.8%

Cash and Cash Equivalents

0.2%

Unclassified

0.2%

Semiconductors25.8%
Alternative Carriers13.4%
Interactive Media & Services8.0%
Systems Software7.3%
Broadline Retail 6.1%
Movies & Entertainment4.0%
Automobile Manufacturers3.8%
Pharmaceuticals3.7%
Transaction & Payment Processing Services 3.6%
Internet Services & Infrastructure3.2%
Application Software3.0%
Biotechnology2.1%
Semiconductor Materials & Equipment 2.0%
Communications Equipment1.6%
Heavy Electrical Equipment1.3%
0481216202428
Semiconductors25.8%
Alternative Carriers13.4%
Interactive Media & Services8.0%
Systems Software7.3%
Broadline Retail 6.1%
Movies & Entertainment4.0%
Automobile Manufacturers3.8%
Pharmaceuticals3.7%
Transaction & Payment Processing Services 3.6%
Internet Services & Infrastructure3.2%
Application Software3.0%
Biotechnology2.1%
Semiconductor Materials & Equipment 2.0%
Communications Equipment1.6%
Heavy Electrical Equipment1.3%
0481216202428

Portfolio CharacteristicsAs of 06/30/2026

DescriptionBaron Opportunity FundRussell 3000 Growth Index
Inception DateFebruary 29, 2000
Net Assets$2.12 billion
# of Issuers / % of Net Assets46/99.9%
Turnover (3 Year Average)27.42%
Active Share60.1%
Median Market Cap$90.45 billion$2.51 billion
Weighted Average Market Cap$1.72 trillion$1.89 trillion
Expense Ratio1.05%
As of FYE Current Expense Ratio Date01/28/2026
EPS Growth (3-5 year forecast)21.9%25.6%
Price/Earnings Ratio (trailing 12-month)38.4x32.9x
Price/Book Ratio13.5x11.5x
Price/Sales Ratio9.9x6.0x
The Net Assets include all share classes combined.
Price/Book Ratio and Price/Sales Ratio are calculated using the Weighted Harmonic Average. Source: FactSet PA. Internal valuation metrics may differ.

Distributions

Record DateEx DatePayable DateIncomeReturn of CapitalShort-Term Capital GainLong-Term Capital GainTotalRe-Invest NAVCalendar-Year Return
12/15/202512/16/202512/17/2025$0.0000$0.0000$0.0000$2.2870$2.2870$57.9019.73%
12/16/202412/17/202412/18/2024$0.0000$0.0000$0.0000$2.3307$2.3307$52.9240.25%
11/22/202111/23/202111/24/2021$0.0000$0.0000$2.0076$1.5956$3.6032$45.3912.29%
11/23/202011/24/202011/25/2020$0.0000$0.0000$0.1878$2.5970$2.7848$37.3889.28%
11/25/201911/26/201911/27/2019$0.0000$0.0000$0.0000$1.6760$1.6760$23.46
For estimated distributions, visit the Tax Center