Osterweis Opportunity Fund

Small-cap growth equity strategy focused on fundamental security selection and sustainable growth, with active rotation away from crowded areas.$360M AUM6 published ideas

Osterweis Opportunity Fund is a small-cap growth strategy benchmarked against the Russell 2000 Growth Index. Security selection is a central driver of returns, with significant exposure to technology, industrials, health care and consumer discretionary companies. Following exceptional gains in AI-linked holdings, the managers have been taking profits and reallocating toward less-crowded opportunities with more sustainable growth rates.

www.osterweis.com

Ideas from Osterweis Opportunity Fund

LongHNGEJul 2026

Hinge Health, Inc.

Hinge Health provides virtual physical therapy and produced exceptional recent financial results. Second-quarter billings increased 52% year over year due to both new members and…

LongLTHJul 2026

Life Time Group Holdings, Inc.

Life Time operates high-end health clubs and has consistently beaten and raised estimates during the fund's roughly year-and-a-half ownership period. The fund believed a…

LongSITMJul 2026

SiTime Corporation

SiTime is the leading pure-play precision-timing semiconductor company. Adoption is increasing in AI data centers as well as applications such as Apple's iPhone, while its most…

LongSMTCJul 2026

Semtech Corporation

Semtech provides high-performance analog and mixed-signal semiconductors whose connectivity products are becoming increasingly important in AI data centers. The company is seeing…

LongCDNLJul 2026

Cardinal Infrastructure Group Inc.

Cardinal Infrastructure delivered strong first-quarter results, including 64% organic growth, and announced its first data-center win. The company also completed a well-priced…

LongFSVJul 2026

FirstService Corporation

FirstService experienced a difficult second quarter because its roofing and residential closet businesses remained soft. The fund expects organic growth to improve during the…

Letters covered

  • Q2 Small Cap Growth Update: AI Investment Pushes Market HigherJuly 22, 2026

Source PDFs are not republished here; only extracted ideas and quotes.