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All-Cap Growth

Baron Opportunity Fund

Symbol BIOIXCUSIP: 068278886
Symbol BIOIXCUSIP: 068278886

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$63.99

Daily Change $1.08 (1.72%)
As of 11/03/2026

Net Assets

$2.16 B

As of 09/30/2026

Morningstar Rating™*

As of 09/30/2026

Inception date

02/29/2000

Prices & Performance

PricesAs of 11/03/2026

NAVDaily Change ($)Daily Change (%)MTDQTDYTD
$63.99$1.081.72%0.63%-5.66%10.08%
NAV$63.99
Daily Change ($)$1.08
Daily Change (%)1.72%
MTD0.63%
QTD-5.66%
YTD10.08%

PerformanceAs of 09/30/2026

Portfolio or IndexQTD1YTD11 Year3 Years5 Years10 YearsSince Inception 02/29/2000
BIOIX - Baron Opportunity Fund - I0.77%16.69%22.09%31.14%11.62%21.82%10.93%
Russell 3000 Growth Index0.45%6.36%7.58%23.84%13.11%17.62%8.09%
S&P 500 Index2.30%12.75%15.74%22.89%13.79%15.33%8.67%

Performance InformationAs of 09/30/2026

Performance statistics3 Years5 Years10 Years
Standard Deviation (%)20.3723.5321.44
Sharpe Ratio1.300.330.90
Alpha (%)3.57-2.252.68
Beta1.131.131.09
R-Squared (%)82.1785.1682.45
Tracking Error (%)8.879.429.13
Information Ratio0.82-0.160.46
Upside Capture (%)117.25105.23111.60
Downside Capture (%)100.90113.81101.75
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 09/30/2026

HoldingSector% of Net Assets
Space Exploration Technologies Corp.
Space Exploration Technologies Corp. (SpaceX, SPCX) is a vertically integrated space, connectivity, and AI company. It builds reusable rockets like Starship and runs Starlink and Starlink Mobile (over 12 million subscribers, over 160 markets). It is a leading AI vendor with xAI, Cursor, and dense datacenters.
Space Exploration Technologies Corp. (SpaceX, SPCX) is a vertically integrated leader in space, global connectivity, and AI. Rocket reusability drives industry-leading launch cadence and costs, fueling Starlink’s expansion across broadband, enterprise, and government, and a growing mobile push. Starship should lower costs further and carry next-gen satellites. With xAI and Cursor, SpaceX sells frontier models and AI coding tools backed by in-house compute and chips. Longer term, orbital AI could offer solar-powered compute at unprecedented scale, an edge few can replicate. 
Communication Services16.4%
NVIDIA Corporation
NVIDIA Corporation (NVDA) is the world's dominant designer of graphics processing units and AI accelerators, supplying the compute infrastructure for large language model training and inference, autonomous vehicles, robotics, and scientific simulation through its CUDA software ecosystem.
NVIDIA Corporation (NVDA) benefits as computing demand doubles every one to two years, driven by electrification, digitization, and advancements in AI, yet supply growth has decelerated due to the slowdown in Moore's law. Its 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 it is well positioned for long-term growth.
Information Technology12.9%
Broadcom Inc.
Broadcom Inc. (AVGO) is a leading semiconductor and infrastructure software company, designing custom AI accelerators and Ethernet networking chips for hyperscalers, and providing enterprise software through its VMware franchise, with additional semiconductor solutions in networking, storage, and wireless.
Broadcom Inc. (AVGO) is reaching an inflection point in its semiconductor portfolio, 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 Technology4.7%
Amazon.com, Inc.
Amazon.com, Inc. (AMZN) is the world's largest e-commerce marketplace and, through Amazon Web Services, the leading global cloud infrastructure provider, with additional businesses in digital advertising, subscription services, logistics, and artificial intelligence infrastructure.
Amazon.com, Inc. (AMZN) has around 45% of U.S. online retail sales, 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 Discretionary4.7%
Alphabet Inc.
Alphabet Inc. (GOOG) is the world's leading digital advertising company, operating Google Search, YouTube, and the Google Network, alongside a fast-growing cloud computing business and investments in artificial intelligence, autonomous vehicles, and other emerging technologies.
Alphabet Inc. (GOOG) 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 Services4.2%
Tesla, Inc.
Tesla, Inc. (TSLA) designs and manufactures electric vehicles and energy storage systems globally, operates a proprietary Supercharger network, and is developing autonomous ride-hailing via Cybercab, humanoid robots via Optimus, and full self-driving software underpinned by its proprietary AI platform.
Tesla, Inc. (TSLA) should continue growing its automotive business as it benefits from the secular adoption of electric vehicles, vertical integration, technological innovation, and cost advantages. It 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 Discretionary3.9%
Meta Platforms, Inc.
Meta Platforms, Inc. (META) is the world's largest social media company, operating Facebook, Instagram, WhatsApp, and Threads with over 3.6 billion daily active people, monetizing primarily through digital advertising and investing heavily in artificial intelligence and augmented reality infrastructure.
Meta Platforms, Inc. (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 Services3.5%
Spotify Technology S.A.
Spotify Technology S.A. (SPOT) is the world's largest audio streaming platform, offering music, podcasts, and audiobooks to hundreds of millions of monthly active users globally, generating revenue through premium subscriptions and advertising.
Spotify Technology S.A. (SPOT), with over 290 million paying subscribers, 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 Services3.4%
Eli Lilly and Company
Eli Lilly and Company (LLY) is a leading global pharmaceutical company with a dominant position in GLP-1 therapies for obesity and diabetes through Zepbound and Mounjaro, alongside significant franchises in oncology, immunology, and neuroscience.
Eli Lilly and Company (LLY) offers 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 Care3.2%
Taiwan Semiconductor Manufacturing Company Limited
Taiwan Semiconductor Manufacturing Company Limited (TSM) is the world’s largest dedicated chip foundry, producing leading-edge logic and advanced packaging for customers like NVIDIA, Apple, AMD, and Broadcom across AI accelerators, smartphones, PCs, and autos, with fabs in Taiwan, Japan, China, and Arizona.
Taiwan Semiconductor Manufacturing Company Limited (TSM) is the dominant force in leading-edge foundry manufacturing, benefiting from economies of scale and a superior cost structure. Its track record of deploying new technology faster than competitors helps it maintain market share and pricing power, with gross margins above 60%. We believe AI accelerators and advanced packaging will drive mid-20% revenue growth through 2029, and its lead at N2 and A14 keeps customers locked in. Falling capital intensity should lift free cash flow and sustain roughly 30% returns on equity.
Information Technology2.6%
Total
59.5%
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 09/30/2026

Top ContributorsAverage WeightContribution
NVIDIA Corporation12.57%1.70%
Meta Platforms, Inc.3.16%0.75%
Snowflake Inc.1.72%0.57%
Heartflow, Inc.1.02%0.55%
Cloudflare, Inc.1.50%0.55%
Source: FactSet PA.

GICS Sector BreakdownAs of 09/30/2026

Sector

Information Technology

44.4%

Communication Services

27.5%

Consumer Discretionary

9.4%

Health Care

8.8%

Industrials

4.3%

Financials

3.5%

Real Estate

0.8%

Cash and Cash Equivalents

0.7%

Utilities

0.4%

Unclassified

0.1%

Semiconductors24.7%
Alternative Carriers16.4%
Interactive Media & Services7.7%
Systems Software7.0%
Broadline Retail 4.7%
Automobile Manufacturers3.9%
Application Software3.8%
Movies & Entertainment3.4%
Pharmaceuticals3.2%
Transaction & Payment Processing Services 3.1%
Internet Services & Infrastructure3.0%
Semiconductor Materials & Equipment 2.3%
Biotechnology1.9%
Communications Equipment1.9%
Heavy Electrical Equipment1.4%
0510152025
Semiconductors24.7%
Alternative Carriers16.4%
Interactive Media & Services7.7%
Systems Software7.0%
Broadline Retail 4.7%
Automobile Manufacturers3.9%
Application Software3.8%
Movies & Entertainment3.4%
Pharmaceuticals3.2%
Transaction & Payment Processing Services 3.1%
Internet Services & Infrastructure3.0%
Semiconductor Materials & Equipment 2.3%
Biotechnology1.9%
Communications Equipment1.9%
Heavy Electrical Equipment1.4%
0510152025

Portfolio CharacteristicsAs of 09/30/2026

DescriptionBaron Opportunity FundRussell 3000 Growth Index
Inception DateFebruary 29, 2000
Net Assets$2.16 billion
# of Issuers / % of Net Assets50/99.3%
Turnover (3 Year Average)25.43%
Active Share56.6%
Median Market Cap$110.06 billion$2.30 billion
Weighted Average Market Cap$1.74 trillion$2.20 trillion
Expense Ratio1.05%
As of FYE Current Expense Ratio Date01/28/2026
EPS Growth (3-5 year forecast)38.2%33.0%
Price/Earnings Ratio (trailing 12-month)32.6x26.9x
Price/Book Ratio10.6x10.3x
Price/Sales Ratio9.6x5.6x
The Net Assets include all share classes combined.
Valuation metrics were calculated using a weighted harmonic average. Source: FactSet PA. Internal projections 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