AIORX — International Opportunities Fund, R Class
Data updated: 2026-07-29
AIORX — International Opportunities Fund, R Class. 1.96% expense ratio · no sales load · since 2010. Holdings, fees, performance and SEC filings.
AIORX Fund Overview
AIORX — International Opportunities Fund, R Class is a US mutual fund managed by American Century World Mutual Funds Inc., categorised as Developed ex-US Mid Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: American Century World Mutual Funds Inc.
- Category: Developed ex-US Mid Cap Growth Equity
- Assets under management: $587.59M
- 1-year return: 34.9%
- Ticker: AIORX
- SEC CIK: 0000872825
- SEC series ID: S000006606
- Share class ID: C000088081
AIORX Investment Objective and Strategy
International Opportunities Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by American Century World Mutual Funds Inc..
Investment objective
The fund seeks capital growth.
Principal investment strategy
The funds assets will be invested primarily in equity securities of companies that are small-sized at the time of purchase and are located in foreign developed countries or emerging market countries. The portfolio managers look for stocks of companies they believe will increase in value over time, using an investment strategy developed by the funds investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow. The portfolio managers use a variety of analytical research tools and techniques to help them buy or hold stocks of companies that meet their investment criteria and sell the stocks of companies that do not.
Under normal market conditions, the funds portfolio managers seek securities of companies whose earnings, revenues or key business fundamentals are not only growing, but growing at an accelerating pace. The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. This may cause higher transaction costs and may affect performance. It may also result in the realization and distribution of capital gains.
AIORX Holdings
Top 10 holdings of International Opportunities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Aritzia Inc | 2.28% |
| ASPEED Technology Inc | 2.23% |
| Suruga Bank Ltd | 2.06% |
| Silergy Corp | 1.76% |
| State Street Navigator Securities Lending Trust - State Street Navigator Securities Lending Government Money Market Portfolio | 1.72% |
| MDA Space Ltd | 1.56% |
| Yaskawa Electric Corp | 1.55% |
| Finning International Inc | 1.54% |
| King Yuan Electronics Co Ltd | 1.52% |
| Balfour Beatty PLC | 1.50% |
AIORX Portfolio Allocation
Asset-class allocation of International Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.3% |
| Cash & Equivalents | 2.2% |
AIORX Performance
Total returns for AIORX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 16.51% |
| 1 year | 34.86% |
| 3 years (annualised) | 16.51% |
| 5 years (annualised) | 2.58% |
AIORX Risk Information
Risk metrics for AIORX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 19.29%
AIORX Costs and Fees
AIORX costs about $196 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.96%
- Gross expense ratio: 2.01%
- Portfolio turnover: 119%
- Brokerage commissions: 11.91 bps of average net assets (SEC N-CEN)
AIORX Cashflows
Over the 12 months to 2026-05, International Opportunities Fund had net outflows of $50.53M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-05 | −$1.91M |
| 2026-04 | −$1.57M |
| 2026-03 | $3.43M |
| 2026-02 | −$1.61M |
| 2026-01 | −$3.73M |
| 2025-12 | −$2.66M |
AIORX Debt Constituents
No individual debt constituents are reported in International Opportunities Fund's latest SEC N-PORT filing.
AIORX Prospectus and SEC Filings
Official International Opportunities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-03-30
- Prospectus (485BPOS) — filed 2025-03-28
- Prospectus supplement (497) — filed 2024-07-31
- Portfolio holdings (N-PORT) — filed 2026-07-29
- Portfolio holdings (N-PORT) — filed 2026-04-29
- Portfolio holdings (N-PORT) — filed 2026-01-27
- Annual census (N-CEN) — filed 2026-02-10
- Annual census (N-CEN) — filed 2025-02-06
Related Funds
Other Developed ex-US Mid Cap Growth 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.