Oberweis Micro-Cap Fund (OBMCX)

Fund Assets	1.45B
Expense Ratio	1.46%
Min. Investment	$1,000
Turnover	41.00%
Dividend (ttm)	n/a
Dividend Yield	n/a
Dividend Growth	n/a
Payout Frequency	n/a
Ex-Dividend Date	Dec 30, 2025

Previous Close	69.27
YTD Return	36.45%
1-Year Return	41.30%
5-Year Return	122.30%
52-Week Low	47.38
52-Week High	79.48
Beta (5Y)	1.24
Holdings	77
Inception Date	Jan 1, 1996

About OBMCX

The Oberweis Micro-Cap Fund is an actively managed mutual fund that focuses on achieving capital appreciation by investing primarily in micro-cap growth companies. The fund allocates at least 80% of its net assets to companies whose market capitalizations fall within the range of the Russell Microcap Growth Index at the time of purchase. By targeting these very small and often underfollowed companies, the fund seeks to capture the growth potential present at the earliest and most dynamic stage of corporate development. Its investment approach combines behavioral finance principles with rigorous fundamental, bottom-up research, aiming to identify businesses with improving growth prospects and earnings potential that differ from consensus expectations. The fund maintains a diversified portfolio with exposure across sectors, including technology, healthcare, and industrials, and implements disciplined risk management practices. Managed by an experienced team, the Oberweis Micro-Cap Fund serves investors seeking access to one of the least efficient segments of the equity market, where opportunities for alpha may be significant due to market inefficiencies and limited analyst coverage.

• Fund Family: Oberweis
• Category: Small Growth
• Performance Rating: High
• Risk Rating: High
• Stock Exchange: NASDAQ
• Ticker Symbol: OBMCX
• Share Class: Investor Class
• Index: Russell Microcap Growth TR

Performance

OBMCX had a total return of 41.30% in the past year, including dividends. Since the fund's inception, the average annual return has been 10.97%.

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
OMCIX	Institutional Class	1.21%

Top 10 Holdings

33.21% of assets

Name	Symbol	Weight
Applied Optoelectronics, Inc.	AAOI	8.65%
Ultra Clean Holdings, Inc.	UCTT	3.63%
Camtek Ltd.	CAMT	3.08%
Silicon Motion Technology Corporation	SIMO	2.90%
Fastly, Inc.	FSLY	2.84%
Tutor Perini Corporation	TPC	2.78%
Rush Street Interactive, Inc.	RSI	2.60%
American Superconductor Corporation	AMSC	2.53%
Primoris Services Corporation	PRIM	2.17%
Blue Bird Corporation	BLBD	2.02%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 30, 2025	$0.7189	Dec 30, 2025
Dec 27, 2024	$1.1419	Dec 27, 2024
Dec 29, 2022	$0.4349	Dec 29, 2022
Dec 30, 2021	$8.7372	Dec 30, 2021
Dec 28, 2018	$3.6132	Dec 28, 2018
Dec 27, 2017	$2.349	Dec 27, 2017

Data Sources: Tiingo, Financial Modeling Prep, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Financial Modeling Prep. Several fund data points are also provided by Finnhub.

Last checked:

Aug 27, 2026

Data Sources Report a data error