OBERWEIS ASSET MANAGEMENT INC/ logo

OBERWEIS ASSET MANAGEMENT INC/ Portfolio Analytics

Investment Analysis & Holdings Breakdown

Comprehensive portfolio analytics for OBERWEIS ASSET MANAGEMENT INC/ with $2.6B in long positions as of Q3 2025, 40% allocated to Technology, and 20% concentrated in top 10 positions.

Portfolio Value
$2.6B
Top 10 Concentration
20%
Top Sector
Technology (40%)
US Exposure
91%
Market Cap Focus
Mid Cap
Countries
10

Composition Analysis

Portfolio breakdown by sector, industry, and market capitalization

Sector Allocation

Technology: 40.20%TechnologyIndustrials: 17.20%IndustrialsHealthcare: 14.10%HealthcareConsumer Cyclical: 11.60%Consumer CyclicalFinancial Services: 4.70%Consumer Defensive: 4.10%Communication Services: 3.00%Energy: 1.20%Basic Materials: 0.80%ETF: 0.10%
Technology
40.20%
Industrials
17.20%
Healthcare
14.10%
Consumer Cyclical
11.60%
Financial Services
4.70%
Consumer Defensive
4.10%
Communication Services
3.00%
Energy
1.20%
Basic Materials
0.80%
ETF
0.10%

Industry Breakdown

63 industries across all sectors

Semiconductors: 13.54%SemiconductorsSoftware - Application: 6.95%Communication Equipment: 6.86%Software - Infrastructure: 5.68%Biotechnology: 4.87%Hardware, Equipment & Parts: 4.24%Industrial - Machinery: 3.93%Engineering & Construction: 3.02%Information Technology Services: 2.74%Aerospace & Defense: 2.63%Medical - Care Facilities: 2.45%Education & Training Services: 2.40%Furnishings, Fixtures & Appliances: 2.38%Medical - Healthcare Information Services: 2.34%Medical - Instruments & Supplies: 2.03%Banks - Regional: 1.90%Medical - Devices: 1.89%Financial - Credit Services: 1.61%Personal Products & Services: 1.58%Industrial - Pollution & Treatment Controls: 1.42%Internet Content & Information: 1.33%Leisure: 1.30%Airlines, Airports & Air Services: 1.28%Apparel - Retail: 1.23%39 more: 17.48%39 more
Semiconductors
Technology
13.54%
Software - Application
Technology
6.95%
Communication Equipment
Technology
6.86%
Software - Infrastructure
Technology
5.68%
Biotechnology
Healthcare
4.87%
Hardware, Equipment & Parts
Technology
4.24%
Industrial - Machinery
Industrials
3.93%
Engineering & Construction
Industrials
3.02%
Information Technology Services
Technology
2.74%
Aerospace & Defense
Industrials
2.63%
Medical - Care Facilities
Healthcare
2.45%
Education & Training Services
Consumer Defensive
2.40%

Filter by Sector

Select a sector to filter industries

Market Cap Distribution

Mega Cap (> $200B): 0.21%Large Cap ($10B - $200B): 16.18%Large Cap ($10B - $200B)Mid Cap ($2B - $10B): 63.52%Mid Cap ($2B - $10B)Small Cap ($300M - $2B): 17.58%Small Cap ($300M - $2B)Nano Cap (< $50M): 1.39%N/A (ETF or Unknown): 1.12%
Mega Cap (> $200B)
0.21%
Large Cap ($10B - $200B)
16.18%
Mid Cap ($2B - $10B)
63.52%
Small Cap ($300M - $2B)
17.58%
Nano Cap (< $50M)
1.39%
N/A (ETF or Unknown)
1.12%

Portfolio Concentration

Top 10 Holdings %
19.77%
Top 20 Holdings %
31.96%
Top 50 Holdings %
57.92%
Top 100 Holdings %
84.32%

Geographic Exposure

Portfolio breakdown by country of incorporation

Domestic (US)
91.49%
International
8.51%
Countries
10
Largest Int'l Market
Israel - 2.82%
United States of America
91.49% ($2.4B)
165 holdings
Israel
2.82% ($73.6M)
4 holdings
Switzerland
1.42% ($37.1M)
1 holdings
Bermuda
1.29% ($33.5M)
2 holdings
Canada
1.00% ($25.9M)
3 holdings
United Kingdom
0.86% ($22.3M)
2 holdings
Cayman Islands
0.64% ($16.7M)
1 holdings
Bahamas
0.38% ($9.8M)
1 holdings
Luxembourg
0.07% ($2.0M)
1 holdings
China
0.03% ($786.8K)
1 holdings

Holding Behavior

Investment patterns and position management analysis

Portfolio Stability & Commitment

Avg. Top 10
6.4 quarters
Avg. Top 20
5.9 quarters
Avg. All Positions
7.4 quarters
Median Holding Period
4 quarters
Persistence Rate
59.12%
Persistent Holdings Weight
61.78%
Persistent Positions
107
Longest Held
Johnson & Johnson logo
Johnson & JohnsonJNJ - 49 quarters

Position Sizing & Influence

Current Quarter

Avg. New Position
0.38%
Avg. Position Weight
0.55%
Largest Position
Credo Technology Group Holding Ltd Ordinary Shares logo
Credo Technology Group Holding Ltd Ordinary SharesCRDO - 3.60%
Largest Ownership Stake
Applied Optoelectronics, Inc. logo
Applied Optoelectronics, Inc.AAOI - 3.03%
Avg. Ownership Stake
0.56%
Ownership Stake >5%
0
Ownership Stake >1%
15

Historical (Since Q2 2013)

Avg. New Position
0.61%
Avg. Ownership Stake
0.61%
Largest Position
Constellium SE Class A Ordinary shares logo
Constellium SE Class A Ordinary sharesCSTM - 35.76% (Q2 2021)
Largest Ownership Stake
Constellium SE Class A Ordinary shares logo
Constellium SE Class A Ordinary sharesCSTM - 4.65% (Q2 2021)

Portfolio Turnover

Current Quarter

Turnover Ratio
12.0%
Value Traded
$311.65M
Positions Added
11
Positions Exited
25

Historical (Since Q2 2013)

Avg. Turnover Ratio
23.2%
Avg. Positions Added
27
Avg. Positions Exited
30
Highest Turnover
49.0%
Q1 2020
Lowest Turnover
9.2%
Q2 2022

Cookie Preferences

We use cookies for analytics. See our Privacy and Cookie Policy.