BIOIX
BARON OPPORTUNITY FUND
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)
Expense ratio1
1.05%
Net assets2
$1.62B
Holdings2
48
Category
US Equity
2025 return3
19.74%

Investment objective & strategy

As of Jan. 28, 2026 · prospectus

Objective. The investment goal of Baron Opportunity Fund (the Fund) is capital appreciation through investments primarily in growth companies that benefit from technology advances.

Strategy. 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. 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.

Top holdings

As of March 31, 2026 · N-PORT
SecurityTickerValue% of fund
NVIDIA CORP $214.49M 13.26%
SPACE EXPLORATION TECHNOLOGIES $106.87M 6.61%
BROADCOM INC $101.64M 6.28%
AMAZON.COM INC $101.12M 6.25%
SPACE EXPLORATION TECH CORP $97.52M 6.03%
TESLA INC $87.44M 5.41%
SPOTIFY TECHNOLOGY SA $64.25M 3.97%
META PLATFORMS INC CL A $62.48M 3.86%
ALPHABET INC CL A $61.54M 3.80%
LILLY ELI and CO $55.09M 3.41%
View all holdings →

Allocation by sector

As of March 31, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Dec 31, 2025 → Mar 31, 2026
Opened
10
Exited
12
Increased
14
Decreased
7
Unchanged
17

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

Similar funds

Funds whose portfolios most overlap this one, by weight
FundOverlapNet exp.
Baron Technology ETF · BCTK 59% 0.75%
Baron Technology Fund · BTEUX, BTEEX, BTECX 59% 0.95%
BARON FIFTH AVENUE GROWTH FUND · BFTHX, BFTIX, BFTUX 58% 0.75%
View all similar funds →

Advisers

As of September 30, 2025 · N-CEN
FirmRole
BAMCO, Inc. Adviser

Footnotes

  1. Expense ratio as of January 28, 2026, from the fund's prospectus.
  2. Net assets and holdings count as of March 31, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.