AMERICAN CENTURY WORLD MUTUAL FUNDS INC
497K3B, 1999-10-26
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[front cover]

                                AMERICAN CENTURY

                                  Fund Profile

[american century logo(reg.sm)]
American
Century

                          International Discovery Fund

  This profile summarizes key information about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
    the fund, including a more detailed description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

  [photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                OCTOBER 25, 1999

                                                                  INVESTOR CLASS

   You may obtain the Prospectus and other information about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




INTERNATIONAL DISCOVERY FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    International Discovery seeks capital growth by investing primarily in
    equity securities of small- to medium-sized foreign companies.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers use a growth investment strategy developed by American
    Century to invest in stocks of small- to medium-sized foreign companies that
    they believe will increase in value over time. This strategy looks for
    companies with earnings and revenue growth. Ideally, the fund managers look
    for companies whose earnings and revenues are not only growing, but growing
    at a successively faster, or accelerating, pace. This strategy is based on
    the premise that, over the long term, the stocks of companies with earnings
    and revenue growth have a greater-than- average chance to increase in value.

    The managers use a bottom-up approach to select stocks to buy for the fund.
    That means they first look for strong, growing companies to invest in,
    rather than allocating investments by country or region or simply buying any
    company in a growing industry or sector. The fund managers track financial
    information for thousands of companies to identify trends in the companies'
    earnings and revenues. This information is used to help the fund managers
    select or decide to continue to hold the stocks of companies they believe
    will be able to sustain their growth and to sell stocks of companies whose
    growth begins to slow down.

    In addition to locating strong companies with earnings and revenue growth,
    the fund managers believe that it is important to diversify the fund's
    holdings across different countries and geographical regions to attempt to
    manage the risks of an international portfolio. For this reason, the fund
    managers also consider the prospects for relative economic growth among
    countries or regions, economic and political conditions, expected inflation
    rates, currency exchange fluctuations, and tax considerations when making
    investments.

    The fund managers do not attempt to time the market. Instead, they intend to
    keep the fund essentially fully invested in stocks regardless of the
    movement of stock prices generally.

    International Discovery will have at least 65% of its assets invested at all
    times in equity securities of small- to medium-sized foreign companies.

    Additional information about International Discovery's investments is
    available in its annual and semiannual reports. In these reports you will
    find a discussion of the market conditions and investment strategies that
    significantly affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * The value of International Discovery's shares depends on the value of the
    stocks and other securities it owns. The value of the individual securities
    that the fund owns will go up and down depending on the performance of the
    companies that issued them, general market and economic conditions, and
    investor confidence.

    * As with all funds, your shares may be worth more or less at any given time
    than the price you paid for them. If you sell your shares when the value is
    less than the price you paid, you will lose money.

    * An investment in the fund is not a bank deposit, and it is not insured or
    guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other
    government agency.

    * Investing in foreign securities has certain unique risks that make it
    generally riskier than investing in U.S. stocks. These risks include
    increased exposure to political, social and economic events in world
    markets; limited availability of public information; less developed trading
    markets; less developed regulatory practices; and a lack of uniform
    financial reporting practices compared to those that apply in the United
    States. In addition, foreign securities are subject to currency risk,
    meaning that because the fund's


 International Discovery                       American Century Investments


    investments are generally held in foreign currencies, the fund could
    experience gains or losses based solely on a change in the exchange rate
    between the fund's foreign currencies and the U.S. dollar.

    * Investing in smaller foreign companies presents unique risks in addition
    to the risks of investing in foreign securities generally. Smaller companies
    may have limited resources, trade less frequently and have less publicly
    available information. They also may be more sensitive to changing economic
    conditions and experience more price volatility.

    In summary, International Discovery is intended for investors who find
    foreign securities an appropriate investment and who are willing to accept
    the risk of investing in small- to medium-sized foreign companies. An
    investment in the fund is not appropriate for investors who are unable to
    tolerate fluctuations in the value of their investment.

    FUND PERFORMANCE

    The following bar chart shows the actual performance of International
    Discovery's Investor Class shares for each calendar year since the fund's
    inception on April 1, 1994. The bar chart indicates the volatility of the
    fund's historical returns from year to year. The bar chart and performance
    information below are not intended to indicate how the fund will perform in
    the future.

[data shown in bar chart]
   Calendar Year-By-Year Returns (1)
                             1998       1997       1996       1995
International Discovery     17.86%     17.48%     31.18%      9.89%

        (1) As of September 30, 1999, the end of the most recent calendar
            quarter, International Discovery's year-to-date return was 24.97%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest

    International Discovery   20.49% (1Q 1998)        -19.91% (3Q 1998)


    The following table shows the average annual total returns of the fund's
    Investor Class shares for the periods indicated. The Morgan Stanley Capital
    International Europe, Australia, Far East (EAFE) Index, an unmanaged index
    that reflects no operating costs, is included as a benchmark for performance
    comparisons.

                                      1 YEAR    5 YEARS   LIFE OF FUND(1)
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1999)
         International Discovery      42.07%    18.64%      19.70%
         MSCI EAFE Index              30.95%     9.12%       9.26%

        (1) The inception date for International Discovery is April 1, 1994.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    INTERNATIONAL DISCOVERY CHARGES A REDEMPTION FEE OF 2.0% OF THE VALUE OF ANY
    SHARES SOLD WITHIN 180 DAYS OF THEIR PURCHASE. This redemption fee is
    retained by the fund. It is intended to encourage long-term investing in the
    fund as well as decrease the negative impact that short-term investors have
    on the shareholders remaining in the fund. Otherwise, there are no fees or
    charges to exchange fund shares into the Investor Class shares of other
    American Century funds or to redeem your shares.

    The following tables describe the fees and expenses that you will pay if you
    buy and hold shares of the fund.


     SHAREHOLDER FEES
     (FEES PAID DIRECTLY FROM YOUR INVESTMENT)
          Redemption Fee
              Shares held less than 180 days                 2.0%(1)
              Shares held for 180 days or more               None

        (1) This redemption fee is retained by the fund.


International Discovery                                        Fund Profile


     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
         Management Fee                                    1.64%(1)
         Distribution and Service (12b-1) Fees             None
         Other Expenses                                    0.00%(2)
         Total Annual Fund Operating Expenses              1.64%


        (1) Based on expenses incurred during the fund's most recent fiscal
            year. The fund has a stepped fee schedule. As a result, the fund's
            management fee rate generally decreases as fund assets increase.

        (2) Other expenses, which include the fees and expenses of the fund's
            independent directors, their legal counsel and interest, were less
            than 0.005% for the most recent fiscal year.

             EXAMPLE
             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above
             . . . your cost of investing in the fund would be:
                    1 year         3 years       5 years         10 years
                    $166            $514          $886            $1,929

            Of course, actual costs may be higher or lower. Use this example to
            compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment Management, Inc. provides investment advisory
    and management services for the fund. American Century uses teams of
    portfolio managers, assistant portfolio managers and analysts working
    together to manage its mutual funds. Identified below are the portfolio
    managers for the International Discovery team:

    HENRIK STRABO, Senior Vice President and Chief Investment Officer,
    International Equities, has been a member of the team that manages
    International Discovery since its inception in April 1994. He joined
    American Century in 1993 as an Investment Analyst and was promoted to
    Portfolio Manager in April 1994. He has a bachelor's degree in business from
    the University of Washington.

    MARK S. KOPINSKI, Senior Vice President and Portfolio Manager, has been a
    member of the team that manages International Discovery since rejoining
    American Century in April 1997. Before rejoining American Century, he served
    as Vice President and Portfolio Manager at Federated Investors, Inc. from
    June 1995 to March 1997. Prior to 1995, he served as Vice President and a
    member of the team that managed International Growth and International
    Discovery. He has a bachelor's degree in business administration from
    Monmouth College and an MA in Asian studies from the University of Illinois.

    BRIAN BRADY, Portfolio Manager, has been a member of the team that manages
    International Discovery since November 1998. He joined American Century in
    June 1994 as an Investment Analyst and was promoted to Portfolio Manager in
    November 1998. Prior to joining American Century, he served as a Financial
    Analyst for Chase Manhattan Bank. He has a bachelor's degree in finance from
    Georgetown University and an MBA from Columbia University Graduate School of
    Business.

6. HOW DO I BUY FUND SHARES?

    American Century offers several ways to purchase shares

    * Complete and return an application along with an investment check payable
    to American Century Investments

    * If you already have an American Century account, call us or access our Web
    site to exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $10,000. If your redemption
    activity causes the value of your account to fall below this account
    minimum, your shares may be redeemed involuntarily.


International Discovery                        American Century Investments


7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any business day by writing
    or calling us. You also may exchange your shares in International Discovery
    for shares in nearly 70 other mutual funds offered by American Century.
    Depending on the options you select when you open your account, some
    restrictions may apply. For your protection, some redemption requests
    require a signature guarantee.

    IF YOU SELL SHARES OF INTERNATIONAL DISCOVERY WITHIN 180 DAYS OF THEIR
    PURCHASE, YOU WILL PAY A REDEMPTION FEE OF 2.0% OF THE VALUE OF THE SHARES
    SOLD.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    International Discovery pays distributions of substantially all of its
    income once a year, usually in December. Distributions from realized capital
    gains are paid twice a year, usually in March and December. Distributions
    may be taxable as ordinary income, capital gains or a combination of the
    two. Capital gains are taxed at different rates depending on the length of
    time the fund held the securities that were sold. Fund shareholders also may
    be able to claim a foreign tax credit for any foreign income taxes paid by
    the fund. Distributions are reinvested automatically in additional shares
    unless you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions
    * wire and electronic funds transfers
    * 24-hour Automated Information Line transactions
    * 24-hour online Internet account access and transactions

    You will find more information about these choices in Your Guide to American
    Century Services, which you may request by calling us, accessing our Web
    site or visiting one of our Investor Centers.

    Information contained in the services guide pertains to shareholders who
    invest directly with American Century rather than through an
    employer-sponsored retirement plan or financial intermediary.

    If you own or are considering purchasing fund shares through an
    employer-sponsored retirement plan or financial intermediary, your ability
    to purchase shares of the fund, exchange them for shares of other American
    Century funds, and redeem them will depend on the terms of your plan or
    financial intermediary. If you have questions about investing in an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.


International Discovery                                        Fund Profile


- --------------------------------------------------------------------------------
[american century logo(reg.sm)]
American
Century

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-3533

Visit our Web site at WWW.AMERICANCENTURY.COM  [graphic of arrow]

SH-PRF-17881   9910                                   Funds Distributor, Inc.
<PAGE>
[front cover]

                                American Century

                                  Fund Profile

[american century logo(reg.sm)]
American
Century

                           International Growth Fund

  This profile summarizes key information about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
    the fund, including a more detailed description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

  [photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                OCTOBER 25, 1999

                                                                  INVESTOR CLASS

   You may obtain the Prospectus and other information about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




INTERNATIONAL GROWTH FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    International Growth seeks capital growth by investing primarily in foreign
    equity securities of issuers in developed countries.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers use a growth investment strategy developed by American
    Century to invest in stocks of foreign companies that they believe will
    increase in value over time. This strategy looks for companies with earnings
    and revenue growth. Ideally, the fund managers look for companies whose
    earnings and revenues are not only growing, but growing at a successively
    faster, or accelerating, pace. This strategy is based on the premise that,
    over the long term, the stocks of companies with earnings and revenue growth
    have a greater-than-average chance to increase in value.

    The managers use a bottom-up approach to select stocks to buy for the fund.
    That means they first look for strong, growing companies to invest in,
    rather than allocating investments by country or region or simply buying any
    company in a growing industry or sector. The fund managers track financial
    information for thousands of companies to identify trends in the companies'
    earnings and revenues. This information is used to help the fund managers
    select or decide to continue to hold the stocks of companies they believe
    will be able to sustain their growth and to sell stocks of companies whose
    growth begins to slow down.

    In addition to locating strong companies with earnings and revenue growth,
    the fund managers believe that it is important to diversify the fund's
    holdings across different countries and geographical regions to attempt to
    manage the risks of an international portfolio. For this reason, the fund
    managers also consider the prospects for relative economic growth among
    countries or regions, economic and political conditions, expected inflation
    rates, currency exchange fluctuations, and tax considerations when making
    investments.

    The fund managers do not attempt to time the market. Instead, they intend to
    keep the fund essentially fully invested in stocks regardless of the
    movement of stock prices generally.

    International Growth will have at least 65% of its assets invested at all
    times in equity securities of issuers in developed countries. The fund
    considers developed countries to include Australia, Austria, Belgium,
    Canada, Denmark, Finland, France, Germany, Ireland, Italy, Japan, the
    Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, the
    United Kingdom and the United States.

    Additional information about International Growth's investments is available
    in its annual and semiannual reports. In these reports you will find a
    discussion of the market conditions and investment strategies that
    significantly affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * The value of International Growth's shares depends on the value of the
    stocks and other securities it owns. The value of the individual securities
    that the fund owns will go up and down depending on the performance of the
    companies that issued them, general market and economic conditions, and
    investor confidence.

    * As with all funds, your shares may be worth more or less at any given time
    than the price you paid for them. If you sell your shares when the value is
    less than the price you paid, you will lose money.

    * An investment in the fund is not a bank deposit, and it is not insured or
    guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other
    government agency.

    * Investing in foreign securities has certain unique risks that make it
    generally riskier than investing in U.S. stocks. These risks include
    increased exposure to political, social and economic events in world
    markets; limited availability of public information; less developed trading
    markets; less


International Growth                          American Century Investments


    developed regulatory practices; and a lack of uniform financial reporting
    practices compared to those that apply in the United States. In addition,
    foreign securities are subject to currency risk, meaning that because the
    fund's investments are generally held in foreign currencies, the fund could
    experience gains or losses based solely on a change in the exchange rate
    between the fund's foreign currencies and the U.S. dollar.

    In summary, International Growth is intended for investors who find foreign
    securities an appropriate investment and who are willing to accept the risk
    associated with the fund's investment strategy. An investment in the fund is
    not appropriate for investors who are unable to tolerate fluctuations in the
    value of their investment.

    FUND PERFORMANCE

    The following bar chart shows the actual performance of International
    Growth's Investor Class shares for each calendar year since the fund's
    inception on May 9, 1991. The bar chart indicates the volatility of the
    fund's historical returns from year to year. The bar chart and the
    performance information below are not intended to indicate how the fund will
    perform in the future.

[data shown in bar chart]
<TABLE>
   Calendar Year-By-Year Returns (1)
<S>                      <C>      <C>      <C>      <C>       <C>      <C>      <C>
                         1998     1997     1996     1995      1994     1993     1992
International Growth    19.01%   19.72%   14.43%   11.89%    -4.76%   42.65%    4.84%
</TABLE>

        (1) As of September 30, 1999, the end of the most recent calendar
            quarter, International Growth's year-to-date return was 10.97%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest
    International Growth      18.32% (4Q 1993)        -17.94% (3Q 1998)

    The following table shows the average annual total returns of the fund's
    Investor Class shares for the periods indicated. The Morgan Stanley Capital
    International Europe, Australia, Far East (EAFE) Index, an unmanaged index
    that reflects no operating costs, is included as a benchmark for performance
    comparisons.

                                     1 YEAR      5 YEARS     LIFE OF FUND(1)
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1999)
          International Growth       27.85%      13.77%          14.76%
          MSCI EAFE Index            30.95%       9.12%          8.75%(2)

        (1) The inception date for International Growth is May 9, 1991.

        (2) Since April 30, 1991, the date nearest the fund's inception for
            which data are available.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century
    * to reinvest dividends in additional shares
    * to exchange into the Investor Class shares of other American Century fund
    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
         Management Fee                               1.33%(1)
         Distribution and Service (12b-1) Fees        None
         Other Expenses                               0.00%(2)
         Total Annual Fund Operating Expenses         1.33%

        (1) Based on expenses incurred during the fund's most recent fiscal
            year. The fund has a stepped fee schedule. As a result, the fund's
            management fee rate generally decreases as fund assets increase.

        (2) Other expenses, which include the fees and expenses of the fund's
            independent directors, their legal counsel and interest, were less
            than 0.005% for the most recent fiscal year.


International Growth                                           Fund Profile


           EXAMPLE

             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above

             . . . your cost of investing in the fund would be:

                      1 year         3 years       5 years        10 years
                      $135            $420          $725           $1,592

             Of course, actual costs may be higher or lower. Use this example to
             compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment Management, Inc. provides investment advisory
    and management services for the fund. American Century uses teams of
    portfolio managers, assistant portfolio managers and analysts working
    together to manage its mutual funds. Identified below are the portfolio
    managers for the International Growth team:

    HENRIK STRABO, Senior Vice President and Chief Investment Officer,
    International Equities, has been a member of the team that manages
    International Growth since April 1994. He joined American Century in 1993 as
    an Investment Analyst and was promoted to Portfolio Manager in April 1994.
    He has a bachelor's degree in business from the University of Washington.

    MARK S. KOPINSKI, Senior Vice President and Portfolio Manager, has been a
    member of the team that manages International Growth since rejoining
    American Century in April 1997. Before rejoining American Century, he served
    as Vice President and Portfolio Manager at Federated Investors, Inc. from
    June 1995 to March 1997. Prior to 1995, he served as Vice President and a
    member of the team that managed International Growth and International
    Discovery. He has a bachelor's degree in business administration from
    Monmouth College and an MA in Asian studies from the University of Illinois.

6. HOW DO I BUY FUND SHARES?

    American Century offers several ways to purchase shares

    * Complete and return an application along with an investment check payable
    to American Century Investments

    * If you already have an American Century account, call us or access our Web
    site to exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $2,500 ($1,000 for traditional and
    Roth IRAs). If your redemption activity causes the value of your account to
    fall below this account minimum, your shares may be redeemed involuntarily.

7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any business day by writing
    or calling us. You also may exchange your shares in International Growth for
    shares in nearly 70 other mutual funds offered by American Century.
    Depending on the options you select when you open your account, some
    restrictions may apply. For your protection, some redemption requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    International Growth pays distributions of substantially all of its income
    once a year, usually in December. Distributions from realized capital gains
    are paid twice a year, usually in March and December. Distributions may be
    taxable as ordinary income, capital gains or a combination of the two.
    Capital gains are taxed at different rates depending on the length of time
    the fund held the securities that were sold. Fund shareholders also may be
    able to claim a foreign tax credit for any foreign income taxes paid by the
    fund. Distributions are reinvested automatically in additional shares unless
    you choose another option.


International Growth                          American Century Investments


9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier  for you to manage
    your account, such as

    * telephone transactions
    * wire and electronic funds transfers
    * 24-hour Automated Information Line transactions
    * 24-hour online Internet account access and transactions

    You will find more information about these choices in Your Guide to American
    Century Services, which you may request by calling us, accessing our Web
    site or visiting one of our Investor Centers.

    Information contained in the services guide pertains to shareholders who
    invest directly with American Century rather than through an
    employer-sponsored retirement plan or financial intermediary.

    If you own or are considering purchasing fund shares through an
    employer-sponsored retirement plan or financial intermediary, your ability
    to purchase shares of the fund, exchange them for shares of other American
    Century funds, and redeem them will depend on the terms of your plan or
    financial intermediary. If you have questions about investing in an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.


International Growth                                           Fund Profile


- --------------------------------------------------------------------------------
[american century logo(reg.sm)]
American
Century

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-3533

Visit our Web site at WWW.AMERICANCENTURY.COM   [graphic of arrow]

SH-PRF-18018   9910                       Funds Distributor, Inc.
<PAGE>
[front cover]

                                AMERICAN CENTURY

                                  Fund Profile

[american century logo(reg.sm)]
American
Century

                             Emerging Markets Fund

  This profile summarizes key information about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
    the fund, including a more detailed description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

  [photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                OCTOBER 25, 1999

                                                                  INVESTOR CLASS

   You may obtain the Prospectus and other information about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




EMERGING MARKETS FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Emerging Markets seeks capital growth by investing primarily in equity
    securities of emerging market companies.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers use a growth investment strategy developed by American
    Century to invest in stocks of emerging market companies that they believe
    will increase in value over time. This strategy looks for companies with
    earnings and revenue growth. Ideally, the fund managers look for companies
    whose earnings and revenues are not only growing, but growing at a
    successively faster, or accelerating, pace. This strategy is based on the
    premise that, over the long term, the stocks of companies with earnings and
    revenue growth have a greater-than-average chance to increase in value.

    The managers use a bottom-up approach to select stocks to buy for the fund.
    That means they first look for strong, growing companies to invest in,
    rather than allocating investments by country or region or simply buying any
    company in a growing industry or sector. The fund managers track financial
    information for thousands of companies to identify trends in the companies'
    earnings and revenues. This information is used to help the fund managers
    select or decide to continue to hold the stocks of companies they believe
    will be able to sustain their growth and to sell stocks of companies whose
    growth begins to slow down.

    In addition to locating strong companies with earnings and revenue growth,
    the fund managers believe that it is important to diversify the fund's
    holdings across different countries and geographical regions to attempt to
    manage the risks of an international portfolio. For this reason, the fund
    managers also consider the prospects for relative economic growth among
    countries or regions, economic and political conditions, expected inflation
    rates, currency exchange fluctuations, and tax considerations when making
    investments.

    The fund managers do not attempt to time the market. Instead, they intend to
    keep the fund essentially fully invested in stocks regardless of the
    movement of stock prices generally.

    Emerging Markets will have at least 65% of its assets invested at all times
    in equity securities of companies located in emerging market countries and
    companies that derive a significant portion of their business from emerging
    market countries. The fund considers emerging market countries to include
    all countries except Australia, Austria, Belgium, Canada, Denmark, Finland,
    France, Germany, Ireland, Italy, Japan, the Netherlands, New Zealand,
    Norway, Portugal, Spain, Sweden, Switzerland, the United Kingdom and the
    United States.

    Additional information about Emerging Markets' investments is available in
    its annual and semiannual reports. In these reports you will find a
    discussion of the market conditions and investment strategies that
    significantly affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * The value of Emerging Markets' shares depends on the value of the stocks
    and other securities it owns. The value of the individual securities that
    the fund owns will go up and down depending on the performance of the
    companies that issued them, general market and economic conditions, and
    investor confidence.

    * As with all funds, your shares may be worth more or less at any given time
    than the price you paid for them. If you sell your shares when the value is
    less than the price you paid, you will lose money.

    * An investment in the fund is not a bank deposit, and it is not insured or
    guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other
    government agency.


Emerging Markets                               American Century Investments


    * Investing in foreign securities has certain unique risks that make it
    generally riskier than investing in U.S. stocks. These risks include
    increased exposure to political, social and economic events in world
    markets; limited availability of public information; less developed trading
    markets; less developed regulatory practices; and a lack of uniform
    financial reporting practices compared to those that apply in the United
    States. In addition, foreign securities are subject to currency risk,
    meaning that because the fund's investments are generally held in foreign
    currencies, the fund could experience gains or losses based solely on a
    change in the exchange rate between the fund's foreign currencies and the
    U.S. dollar.

    * Investing in emerging market companies is also riskier than investing in
    foreign securities generally. Emerging market countries may have unstable
    governments and/or economies that are subject to sudden change. These
    changes may be magnified by the countries' financial markets, resulting in
    significant volatility to the fund's investments. These countries also may
    lack the legal, business and social framework to support securities markets.

    In summary, Emerging Markets is intended for investors who find foreign
    securities an appropriate investment and who are willing to accept the
    increased risk of investing in emerging market companies. An investment in
    the fund is not appropriate for investors who are unable to tolerate rapid
    fluctuations in the value of their investment.

    FUND PERFORMANCE

    The following bar chart shows the actual performance of Emerging Markets'
    Investor Class shares for each calendar year since the fund's inception on
    September 30, 1997. The bar chart indicates the volatility of the fund's
    historical returns from year to year. The bar chart and performance
    information below are not intended to indicate how the fund will perform in
    the future.

[data shown in bar chart]
   Calendar Year-By-Year Returns (1)
                            1998
Emerging Markets          -18.90%

        (1) As of September 30, 1999, the end of the most recent calendar
            quarter, Emerging Markets' year-to-date return was 38.35%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                          Highest                      Lowest

    Emerging Markets      31.18% (2Q 1999)             -24.62% (3Q 1998)

    The following table shows the average annual total returns of the fund's
    Investor Class shares for the periods indicated. The Morgan Stanley Capital
    International Emerging Markets Free Index, an unmanaged index that reflects
    no operating costs, is included as a benchmark for performance comparisons.

                                             1 YEAR           LIFE OF FUND(1)

     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1999)

         Emerging Markets                    59.52%             -3.15%

         MSCI Emerging Markets
            Free Index                       56.52%             -9.62%

        (1) The inception date for Emerging Markets is September 30, 1997.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century fund

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.


     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

         Management Fee                               2.00%(1)

         Distribution and Service (12b-1) Fees        None

         Other Expenses                               0.00%(2)

         Total Annual Fund Operating Expenses         2.00%


        (1) Based on expenses incurred during the fund's most recent fiscal
            year. The fund has a stepped fee schedule. As a result, the fund's
            management fee rate generally decreases as fund assets increase.

        (2) Other expenses, which include the fees and expenses of the fund's
            independent directors, their legal counsel and interest, were less
            than 0.005% for the most recent fiscal year.


Emerging Markets                                               Fund Profile


           EXAMPLE

             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above

             . . . your cost of investing in the fund would be:

                     1 year          3 years        5 years        10 years

                      $202            $623          $1,069          $2,305

            Of course, actual costs may be higher or lower. Use this example to
            compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment Management, Inc. provides investment advisory
    and management services for the fund. American Century uses teams of
    portfolio managers, assistant portfolio managers and analysts working
    together to manage its mutual funds. Identified below are the portfolio
    managers for the Emerging Markets team:

    MARK S. KOPINSKI, Senior Vice President and Portfolio Manager, has been a
    member of the team that manages Emerging Markets since its inception in
    September 1997. He rejoined American Century in April 1997. Before rejoining
    American Century, he served as Vice President and Portfolio Manager at
    Federated Investors, Inc. from June 1995 to March 1997. Prior to 1995, he
    served as Vice President and a member of the team that managed International
    Growth and International Discovery. He has a bachelor's degree in business
    administration from Monmouth College and an MA in Asian studies from the
    University of Illinois.

    MICHAEL J. DONNELLY, Vice President and Portfolio Manager, has been a member
    of the team that manages Emerging Markets since its inception in September
    1997. He joined American Century in August 1997. From 1993 to 1997, he
    served as Vice President and Portfolio Manager for Federated Investors, Inc.
    He has a bachelor of arts from Yale University and an MBA in management,
    international business and international finance from Kellogg Graduate
    School of Management, Northwestern University. He is a Chartered Financial
    Analyst.

6. HOW DO I BUY FUND SHARES?

    American Century offers several ways to purchase shares

    * Complete and return an application along with an investment check payable
    to American Century Investments

    * If you already have an American Century account, call us or access our Web
    site to exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $10,000. If your redemption
    activity causes the value of your account to fall below this account
    minimum, your shares may be redeemed involuntarily.

7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any business day by writing
    or calling us. You also may exchange your shares in Emerging Markets for
    shares in nearly 70 other mutual funds offered by American Century.
    Depending on the options you select when you open your account, some
    restrictions may apply. For your protection, some redemption requests
    require a signature guarantee.


Emerging Markets                               American Century Investments


8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Emerging Markets pays distributions of substantially all of its income once
    a year, usually in December. Distributions from realized capital gains are
    paid twice a year, usually in March and December. Distributions may be
    taxable as ordinary income, capital gains or a combination of the two.
    Capital gains are taxed at different rates depending on the length of time
    the fund held the securities that were sold. Fund shareholders also may be
    able to claim a foreign tax credit for any foreign income taxes paid by the
    fund. Distributions are reinvested automatically in additional shares unless
    you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions
    * wire and electronic funds transfers
    * 24-hour Automated Information Line transactions
    * 24-hour online Internet account access and transactions

    You will find more information about these choices in Your Guide to American
    Century Services, which you may request by calling us, accessing our Web
    site or visiting one of our Investor Centers.

    Information contained in the services guide pertains to shareholders who
    invest directly with American Century rather than through an
    employer-sponsored retirement plan or financial intermediary.

    If you own or are considering purchasing fund shares through an
    employer-sponsored retirement plan or financial intermediary, your ability
    to purchase shares of the fund, exchange them for shares of other American
    Century funds, and redeem them will depend on the terms of your plan or
    financial intermediary. If you have questions about investing in an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.


Emerging Markets                                               Fund Profile

- --------------------------------------------------------------------------------
[american century logo(reg.sm)]
American
Century

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-3533

Visit our Web site at WWW.AMERICANCENTURY.COM  [graphic of arrow]

SH-PRF-17884   9910                        Funds Distributor, Inc.
<PAGE>
[front cover]

                                American Century

                                  Fund Profile

[american century logo(reg.sm)]
American
Century

                               Global Growth Fund

  This profile summarizes key information about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
    the fund, including a more detailed description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

  [photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                OCTOBER 25, 1999

                                                                  INVESTOR CLASS

   You may obtain the Prospectus and other information about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




GLOBAL GROWTH FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Global Growth seeks capital growth by investing primarily in equity
    securities of issuers in developed countries worldwide, including the United
    States.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers use a growth investment strategy developed by American
    Century to invest in stocks of U.S. and foreign companies that they believe
    will increase in value over time. This strategy looks for companies with
    earnings and revenue growth. Ideally, the fund managers look for companies
    whose earnings and revenues are not only growing, but growing at a
    successively faster, or accelerating, pace. This strategy is based on the
    premise that, over the long term, the stocks of companies with earnings and
    revenue growth have a greater-than-average chance to increase in value.

    The managers use a bottom-up approach to select stocks to buy for the fund.
    That means they first look for strong, growing companies to invest in,
    rather than allocating investments by country or region or simply buying any
    company in a growing industry or sector. The fund managers track financial
    information for thousands of companies to identify trends in the companies'
    earnings and revenues. This information is used to help the fund managers
    select or decide to continue to hold the stocks of companies they believe
    will be able to sustain their growth and to sell stocks of companies whose
    growth begins to slow down.

    In addition to locating strong companies with earnings and revenue growth,
    the fund managers believe that it is important to diversify the fund's
    holdings across different countries and geographical regions to attempt to
    manage the risks of an international portfolio. For this reason, the fund
    managers also consider the prospects for relative economic growth among
    countries or regions, economic and political conditions, expected inflation
    rates, currency exchange fluctuations, and tax considerations when making
    investments.

    The fund managers do not attempt to time the market. Instead, they intend to
    keep the fund essentially fully invested in stocks regardless of the
    movement of stock prices generally.

    Global Growth will have at least 65% of its assets invested at all times in
    equity securities of issuers in developed countries. The fund considers
    developed countries to include Australia, Austria, Belgium, Canada, Denmark,
    Finland, France, Germany, Ireland, Italy, Japan, the Netherlands, New
    Zealand, Norway, Portugal, Spain, Sweden, Switzerland, the United Kingdom,
    and the United States.

    Additional information about Global Growth's investments is available in its
    semiannual report. In this report you will find a discussion of the market
    conditions and investment strategies that significantly affected the fund's
    performance during the most recent fiscal period. You may get this report at
    no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * The value of Global Growth's shares depends on the value of the stocks and
    other securities it owns. The value of the individual securities that the
    fund owns will go up and down depending on the performance of the companies
    that issued them, general market and economic conditions, and investor
    confidence.

    * As with all funds, your shares may be worth more or less at any given time
    than the price you paid for them. If you sell your shares when the value is
    less than the price you paid, you will lose money.

    * An investment in the fund is not a bank deposit, and it is not insured or
    guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other
    government agency.

    * Investing in foreign securities has certain unique risks that make it
    generally riskier than investing in U.S. stocks. These risks include
    increased exposure to political, social and economic events in world
    markets; limited availability of public information; less developed trading
    markets; less developed regulatory practices; and a lack of uniform
    financial reporting practices compared to those that apply in the United
    States. In addition, foreign securities are subject to currency risk,
    meaning that because the fund's investments are generally held in foreign
    currencies, the fund could experience gains or losses based solely on a
    change in the exchange rate between the fund's foreign currencies and the
    U.S. dollar.


Global Growth                                 American Century Investments


     In summary, Global Growth is intended for investors who find U.S. and
     foreign growth securities an appropriate investment and who are willing to
     accept the risk associated with the fund's investment strategy. An
     investment in the fund is not appropriate for investors who are unable to
     tolerate fluctuations in the value of their investment.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century
    * to reinvest dividends in additional shares
    * to exchange into the Investor Class shares of other American Century fund
    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
         Management Fee                                 1.30%(1)
         Distribution and Service (12b-1) Fees          None
         Other Expenses                                 0.00%(2)
         Total Annual Fund Operating Expenses           1.30%

        (1) The fund has a stepped fee schedule. As a result, the fund's
            management fee rate generally decreases as fund assets increase.

        (2) Other expenses, which include the fees and expenses of the fund's
            independent directors, their legal counsel and interest, are
            expected to be less than 0.005% for the current fiscal year.

           EXAMPLE

             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above

             . . . your cost of investing in the fund would be:

                             1 year               3 years
                              $132                 $410

             Of course, actual costs may be higher or lower. Use this example to
             compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment Management, Inc. provides investment advisory
    and management services for the fund. American Century uses teams of
    portfolio managers, assistant portfolio managers and analysts working
    together to manage its mutual funds. Identified below are the portfolio
    managers for the Global Growth team:

    HENRIK STRABO, Senior Vice President and Chief Investment Officer,
    International Equities, has been a member of the team that manages Global
    Growth since its inception in December 1998. He joined American Century in
    1993 as an Investment Analyst and was promoted to Portfolio Manager in April
    1994. He has a bachelor's degree in business from the University of
    Washington.

    BRADLEY AMOILS, Portfolio Manager, has been a member of the team that
    manages Global Growth since its inception in December 1998. He joined
    American Century in July 1997 as an Investment Analyst and was promoted to
    Portfolio Manager in November 1998. Prior to joining American Century, he
    served as a Securities Analyst for Oppenheimer Funds from January 1996 to
    June 1997 and an Analyst at Clay Finlay Asset Management from March 1995 to
    December 1995. He has a bachelor of science and doctorate of medicine from
    the University of Witwatersrand-Johannesburg-South Africa and an MBA from
    Columbia University Graduate School of Business.

6. HOW DO I BUY FUND SHARES?

    American Century offers several ways to purchase shares

    * Complete and return an application along with an investment check payable
    to American Century Investments

    * If you already have an American Century account, call us or access our Web
    site to exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $2,500 ($1,000 for traditional and
    Roth IRAs). If your redemption activity causes the value of your account to
    fall below this account minimum, your shares may be redeemed involuntarily.


Global Growth                                                  Fund Profile


7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any business day by writing
    or calling us. You also may exchange your shares in Global Growth for shares
    in nearly 70 other mutual funds offered by American Century. Depending on
    the options you select when you open your account, some restrictions may
    apply. For your protection, some redemption requests require a signature
    guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Global Growth pays distributions of substantially all of its income once a
    year, usually in December. Distributions from realized capital gains are
    paid twice a year, usually in March and December. Distributions may be
    taxable as ordinary income, capital gains or a combination of the two.
    Capital gains are taxed at different rates depending on the length of time
    the fund held the securities that were sold. Fund shareholders also may be
    able to claim a foreign tax credit for any foreign income taxes paid by the
    fund. Distributions are reinvested automatically in additional shares unless
    you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions
    * wire and electronic funds transfers
    * 24-hour Automated Information Line transactions
    * 24-hour online Internet account access and transactions

    You will find more information about these choices in Your Guide to American
    Century Services, which you may request by calling us, accessing our Web
    site or visiting one of our Investor Centers.

    Information contained in the services guide pertains to shareholders who
    invest directly with American Century rather than through an
    employer-sponsored retirement plan or financial intermediary.

    If you own or are considering purchasing fund shares through an
    employer-sponsored retirement plan or financial intermediary, your ability
    to purchase shares of the fund, exchange them for shares of other American
    Century funds, and redeem them will depend on the terms of your plan or
    financial intermediary. If you have questions about investing in an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.

- --------------------------------------------------------------------------------
[american century logo(reg.sm)]
American
Century

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-3533

Visit our Web site at WWW.AMERICANCENTURY.COM  [graphic of arrow[

SH-PRF-17885   9910                                   Funds Distributor, Inc.


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