ACIOX
International Opportunities Fund
American Century World Mutual Funds, Inc.
Expense ratio1
1.26%
Net assets2
$581.49M
Holdings2
122
Category
International Equity
2025 return3
29.83%

Investment objective & strategy

As of March 30, 2026 · prospectus

Objective. The fund seeks capital growth.

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 … 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 make decisions about buying or holding stocks of companies that meet their investment criteria and selling 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.

Top holdings

As of Feb. 28, 2026 · N-PORT
SecurityTickerValue% of fund
State Street Navigator Securities Lending Government Money Market Portfolio $27.09M 4.66%
ARITZIA INC-SUB $12.53M 2.15%
DPM METALS INC $11.49M 1.98%
Empresa Brasileira de Aeronautica S.A. (ADR) EMBJ $11.09M 1.91%
GENESIS MINERALS $9.58M 1.65%
ASPEED TECH $9.57M 1.65%
FINNING INTL INC $9.50M 1.63%
SOJITZ CORP $9.46M 1.63%
YASKAWA ELECTRIC $9.22M 1.59%
SURUGA BANK LTD $9.14M 1.57%
View all holdings →

Allocation by sector

As of February 28, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Nov 30, 2025 → Feb 28, 2026
Opened
29
Exited
21
Increased
25
Decreased
58
Unchanged
10

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

Similar funds

Funds whose portfolios most overlap this one, by weight
FundOverlapNet exp.
International Small-Mid Cap Fund · ANTSX, ANTMX 54% 0.02%
Global Small Cap Fund · AGCVX, AGCSX, AGCLX, AGCHX, AGCWX, AGCTX 33% 0.76%
Schwab International Opportunities Fund · SWMIX 19% 0.84%
View all similar funds →

Advisers

As of November 30, 2025 · N-CEN
FirmRole
American Century Investment Management, Inc. Adviser

Footnotes

  1. Expense ratio as of March 30, 2026, from the fund's prospectus.
  2. Net assets and holdings count as of February 28, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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