OBIOX — Oberweis International Opportunities Fund
Data updated: 2026-08-28
OBIOX — Oberweis International Opportunities Fund. Developed ex-US Mid Cap Growth Materials Equity. Holdings, fees, performance and SEC filings.
OBIOX Fund Overview
OBIOX — Oberweis International Opportunities Fund is a US mutual fund managed by Oberweis Funds, categorised as Developed ex-US Mid Cap Growth Materials Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Oberweis Funds
- Category: Developed ex-US Mid Cap Growth Materials Equity
- Assets under management: $409.22M
- 1-year return: 12.6%
- Ticker: OBIOX
- SEC CIK: 0000803020
- SEC series ID: S000015622
- Share class ID: C000042583
OBIOX Holdings
Top 10 holdings of Oberweis International Opportunities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Fidelity Government Portfolio | 4.72% |
| Games Workshop Group PLC | 2.85% |
| Koninklijke Heijmans N.V | 2.56% |
| Storebrand ASA | 2.29% |
| Fuji Corp/Aichi | 2.24% |
| Enerflex Ltd | 2.15% |
| Tokyo Ohka Kogyo Co Ltd | 2.09% |
| Glanbia PLC | 2.04% |
| Food & Life Cos Ltd | 2.04% |
| De' Longhi SpA | 2.01% |
OBIOX Portfolio Allocation
Asset-class allocation of Oberweis International Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 91.2% |
| Cash & Equivalents | 4.7% |
| Other | 3.5% |
OBIOX Performance
Total returns for OBIOX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 8.3% |
| 1 year | 12.6% |
| 3 years (annualised) | 15.5% |
| 5 years (annualised) | -0.8% |
OBIOX Risk Information
Risk metrics for OBIOX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 19.9%
OBIOX Costs and Fees
OBIOX costs about $135 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.35%
- Gross expense ratio: 1.43%
- Portfolio turnover: 125%
- Brokerage commissions: 28.23 bps of average net assets (SEC N-CEN)
OBIOX Cashflows
Over the 12 months to 2026-06, Oberweis International Opportunities Fund had net outflows of $35.82M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$8.05M |
| 2026-05 | $1.10M |
| 2026-04 | −$99.73K |
| 2026-03 | −$20.26M |
| 2026-02 | $7.06M |
| 2026-01 | −$1.17M |
OBIOX Debt Constituents
No individual debt constituents are reported in Oberweis International Opportunities Fund's latest SEC N-PORT filing.
OBIOX Prospectus and SEC Filings
Official Oberweis International Opportunities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-30
- Prospectus (485BPOS) — filed 2025-04-30
- Prospectus (485BPOS) — filed 2024-04-30
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-29
- Portfolio holdings (N-PORT) — filed 2026-02-27
- Annual census (N-CEN) — filed 2026-03-12
- Annual census (N-CEN) — filed 2025-03-11
Related Funds
Other Developed ex-US Mid Cap Growth Materials Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.