AMERICAN CENTURY MUTUAL FUNDS INC
485APOS, 1999-09-01
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               SECURITIES AND EXCHANGE COMMISSION
                    Washington, D.C.   20549

                           FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933               [X]

     Pre-Effective Amendment No.                                      [ ]

     Post-Effective Amendment No. 85                                  [X]

                             and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940       [X]

     Amendment No. 85                                                 [X]

                        (Check appropriate box or boxes.)


                       AMERICAN CENTURY MUTUAL FUNDS, INC.
       _________________________________________________________________
               (Exact Name of Registrant as Specified in Charter)


                  4500 Main Street, Kansas City, MO 64141-6200
       _________________________________________________________________
               (Address of Principal Executive Offices) (Zip Code)


       Registrant's Telephone Number, including Area Code: (816) 531-5575


         David C. Tucker, Esq., 4500 Main Street, Kansas City, MO 64111
       _________________________________________________________________
                     (Name and Address of Agent for Service)

           Approximate Date of Proposed Public Offering: November 14, 1999

 It is proposed that this filing will become effective (check appropriate box)

     [ ] immediately upon filing pursuant to paragraph (b)
     [ ] on (date) pursuant to paragraph (b)
     [ ] 60 days after filing pursuant to paragraph (a)(1)
     [ ] on (date) pursuant to paragraph (a)(1)
     [X] 75 days after filing pursuant to paragraph (a)(2)
     [ ] on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

     [ ] This post-effective amendment designates a new effective date for a
         previously filed post-effective amendment.

- --------------------------------------------------------------------------------
<PAGE>
American Century
Prospectus
- --------------------------------------------------------------------------------
                                                                         AC Fund
                                                               AC Large-Cap Fund
                                                                  INVESTOR CLASS
                                                               NOVEMBER 14, 1999

THE  SECURITIES AND EXCHANGE  COMMISSION  HAS NOT APPROVED OR DISAPPROVED  THESE
SECURITIES OR DETERMINED IF THIS PROSPECTUS IS ACCURATE OR COMPLETE.  ANYONE WHO
TELLS YOU OTHERWISE IS COMMITTING A CRIME.



                                          DISTRIBUTED BY FUNDS DISTRIBUTOR, INC.





Dear Investor,

    Reading a prospectus doesn't have to be a chore. We've done the hard work so
you can focus on what's  important--learning  about the funds and tracking  your
investments. Take a look inside, and you'll see this prospectus is different. It
takes a clear-cut approach to fund information.

   Here's what you'll find:

   o  The funds' primary investments and risks

   o  A description of who may or may not want to invest in the funds

   o  An overview of services available and ways to manage your accounts

   o  Helpful tips and definitions of key investment terms

    Whether you're a current investor or investing in mutual funds for the first
time, this prospectus will give you a clear  understanding  of the funds. If you
have questions, our Investor Relations  Representatives are available weekdays 7
a.m. to 7 p.m. and Saturdays 9 a.m. to 2 p.m. Central time. Our toll-free number
is 1-800-345-2021. We look forward to helping you achieve your financial goals.

      Sincerely,





      Mark Killen
      Senior Vice President
      American Century Investment Services, Inc.




Table of Contents


An Overview of the Funds.......................................................2

Fund Performance History.......................................................3

Fees and Expenses..............................................................4

Information about the Funds
AC Fund
AC Large-Cap Fund..............................................................5


Management.....................................................................7

Investing with American Century...............................................XX

Share Price and Distributions.................................................XX

Taxes.........................................................................XX

Multiple Class Information....................................................XX




CALLOUT
Throughout  this  book  you'll  find  definitions  of key  investment  terms and
phrases.  When you see a word printed in green italics,  look for its definition
in the left margin.

This symbol highlights special information and helpful tips.






An Overview of the Funds


What are the funds'  investment  objectives?  These funds seek long-term capital
growth.

What are the funds' primary investment strategies and principal risks? The funds
use a  systematic,  highly-automated  approach to common stock  investing.  This
approach  is designed  to  identify  companies  that are growing and whose share
price  patterns  suggest  their  stocks are likely to increase in value.  A more
detailed  description  of the  funds'  investment  style  begins on page __. The
funds'  principal risks include

o   High Turnover - The  funds'portfolio  turnover may be very high.  This could
    result in relatively high commission costs and capital gains tax liabilities
    for the funds and their shareholders, which may hurt the funds' performance.

o   Market Risk - The value of a fund's  shares will go up and down based on the
    performance  of the  companies  whose  securities  it owns and other factors
    affecting the securities market generally.

o   Price   Volatility  -  The  value  of  the  funds'   shares  may   fluctuate
    significantly in the short term.

o   Principal  Loss - As with all mutual  funds,  if you sell your  shares  when
    their value is less than the price you paid, you will lose money.

o   Nondiversification  - From time to time,  the funds  may  pursue  investment
    opportunities  that cause them to become  temporarily  nondiversified.  In a
    nondiversified  fund, a price change in a single security may have a greater
    impact on the fund's  share  price  than would be the case in a  diversified
    fund.

Who may want to invest in the funds?

The funds may be a good investment if you are

o   seeking long-term capital growth from your investment

o   comfortable with the funds' short-term price volatility

o   comfortable with the risks associated with the funds' investment strategy

o   investing through an IRA or other tax-advantaged retirement plan


Who may not want to invest in the funds?

The funds may not be a good investment if you are

o   seeking current income from your investment

o   investing for a short period of time

o   uncomfortable with short-term volatility in the value of your investment

CALLOUT

Portfolio  turnover  is a  measure  of how  frequently  a fund  buys  and  sells
portfolio securities.

CALLOUT

A  nondiversified  fund may  invest a  greater  percentage  of its  assets  in a
particular portfolio security than may a diversified fund.

CALLOUT

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




Fund Performance History

As new funds, the funds' performance  history is not available as of the date of
this Prospectus.

CALLOUT

For current performance  information,  please call us at 1-800-345-2021 or visit
American Century's Web site at www.americancentury.com.






Fees and Expenses

There are no sales loads,  fees or other  charges

o to buy fund shares directly from American Century

o to reinvest dividends in additional shares

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

    Shareholder Transaction Expenses (fees paid directly from your investment)

                                    Redemption/Exchange Fee(as a percentage
                                         of amount redeemed/exchanged)
Shares held for less than five years (1)             2.0%
Shares held for five years or more                   None

1   The fee withheld from redemption/exchange proceeds is retained by the fund.

<TABLE>
Annual Operating Expenses (expenses that are deducted from fund assets)

               Management   Distribution and      Other           Total Annual Fund
               Fee          Service (12b-1) Fees  Expenses(1)     Operating Expenses
               ---          --------------------  -----------     ------------------
<S>           <C>           <C>                   <C>             <C>
AC Fund        1.50%        None                  0.00%           1.50%
AC Large-Cap   1.35%        None                  0.00%           1.35%
</TABLE>

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

Example
The examples in the table below are intended to help you compare the costs of
investing in a fund with the costs of investing in other mutual funds. Assuming
you ...

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

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

               1 year            3 years
AC Fund        $359              $693
AC Large-Cap   $344              $648

You would pay the following expenses if you did not redeem your shares:

               1 year            3 years
AC Fund        $152              $472
AC Large-Cap   $137              $426

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






Information about the Funds


AC Fund
AC Large-Cap Fund

What are the funds' investment objectives?

These funds seek long-term capital growth.

How do the funds pursue their investment objectives?

The funds use a systematic,  highly-automated approach to common stock investing
developed by American  Century.  This approach  relies  heavily on  quantitative
tools  to  identify  attractive  investment   opportunities  on  a  disciplined,
consistent  basis.  It  utilizes a  fundamental  screening  process to  identify
attractive  companies and a technical signal generator to determine  optimum buy
and sell points based on a stock's historical price trends.

The quantitative tools used to identify attractive  companies do so by screening
thousands of publicly traded securities to identify those that are growing.  The
methodology  identifies  companies  whose earnings and revenues are growing at a
successively faster, or accelerating, pace.

A second portion of the methodology  attempts to identify  companies whose share
price  patterns  suggest  that they are  likely to either  rise or fall in price
(commonly  referred to as  technical  analysis).  This  process is  particularly
oriented to identifying  attractive  price patterns for companies  demonstrating
the accelerating growth described above. These would be candidates for purchase.
Conversely,  companies  whose share price  patterns  suggest  they are likely to
decline  in price  would be  candidates  for  sale,  if  owned by the  fund.  On
occasion,  the process may look  favorably on share price  patterns  that appear
attractive even though the earnings of the underlying company are not growing at
an accelerating rate.

Although the funds are expected to invest primarily in U.S. companies,  there is
no limit on the  amount of assets  the funds can  invest in  foreign  companies.
Investments in foreign  securities present some unique risks that are more fully
described in the funds' Statement of Additional Information.

The fund  managers do not attempt to time the  market.  Instead,  they intend to
keep the funds  essentially  fully invested in stocks regardless of the movement
of stock prices generally.  However, in the fund managers' discretion, the funds
may  invest up to 100% of their  assets  in U.S.  government  securities  if the
funds' investment  methodology fails to generate sufficient  investment ideas or
to respond to adverse market, economic, political or other conditions. The funds
may not  achieve  their  investment  objectives  while  taking  such a temporary
defensive position. When the managers believe that it is prudent, the funds also
may  invest a portion  of their  assets in  convertible  securities,  short-term
instruments, and non-leveraged futures and options. Futures and options can help
the funds' cash assets  remain  liquid while  performing  more like stocks.  The
funds  have a policy  governing  futures  and  options  and  similar  derivative
securities  to help  manage the risk of these types of  investments.  A complete
description of the derivatives policy is included in the Statement of Additional
Information.

CALLOUT

Accelerating growth is shown, for example, by growth that is faster this quarter
than last or faster this year than the year before.

CALLOUT

Non-leveraged  means that the fund may not invest in futures  contracts where it
would be possible to lose more than the fund invested.

What kinds of securities do the funds buy?

The funds will usually purchase common stocks of U.S. and foreign companies, but
they can  purchase  other types of  securities  as well,  such as  domestic  and
foreign preferred stocks, convertible securities,  equity equivalent securities,
notes,  bonds and other debt securities.  The funds limit their purchase of debt
securities to investment-grade obligations.

What are the differences between the funds?

AC Large-Cap generally invests in larger companies.  Companies  considered to be
large generally have a market  capitalization in excess of $5 billion.  AC Fund,
by contrast, may invest in companies of any size.

What are the primary risks of investing in the funds?

The process  driving the funds is  specifically  designed to respond  quickly to
changing stock market conditions. As a result, the funds' portfolio turnover may
be  significantly  higher than that of many other  funds.  This heavy  turnover,
perhaps as much as 200-300% per year or more,  could result in  relatively  high
commission  costs,  substantial  capital gain  realizations  for the funds,  and
capital gains tax liabilities for the funds' shareholders.

The  value of a fund's  shares  depends  on the  value of the  stocks  and other
securities it owns. The value of the  individual  securities a 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.

The fund managers may buy a large amount of a company's stock quickly, and often
will dispose of it quickly if the company's earnings or revenues decline.  While
the managers believe this strategy provides substantial  appreciation  potential
over the long  term,  in the short term it can  create a  significant  amount of
share price volatility.  This volatility can be greater than that of the average
stock fund.

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

Market  performance  tends to be cyclical,  and in the various  cycles,  certain
investment  styles may fall in and out of favor.  If the market is not  favoring
the funds' style,  the funds' gains may not be as big as, or their losses may be
bigger than, other equity funds using different investment styles.

Although the fund managers intend to invest the funds' assets  primarily in U.S.
stocks, the funds may invest in securities of foreign companies. To the extent a
fund  invests  in  foreign  securities,  the  overall  risk of the fund could be
affected.   Foreign   securities  can  have  certain  unique  risks,   including
fluctuations  in currency  exchange  rates,  less stable  political and economic
structures,  reduced  availability  of public  information,  and lack of uniform
financial reporting and regulatory  practices similar to those that apply in the
United  States.  These factors make  investing in foreign  securities  generally
riskier than investing in U.S. stocks.

CALLOUT

Market capitalization is the value of a company as determined by multiplying the
number of shares of its stock outstanding by its current market price per share.








Management


Who manages the funds?

The Board of Directors,  investment  advisor and fund  management  team play key
roles in the management of the funds.

The Board of Directors

The Board of Directors  oversees the  management of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Directors  does not manage the funds,  it has hired an investment  advisor to do
so. More than two-thirds of the directors are independent of the funds' advisor;
that is, they are not employed by and have no financial interest in the advisor.

The Investment Advisor

The funds' investment  advisor is American Century Investment  Management,  Inc.
The advisor has been  managing  mutual  funds  since 1958.  American  Century is
headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible  for managing the investment  portfolios of the funds
and directing the purchase and sale of their investment securities.  The advisor
also arranges for transfer agency,  custody and all other services necessary for
the funds to operate.

For the  services  it  provides  to the funds,  the  advisor  receives a unified
management  fee of 1.50% of the average net assets of the Investor  Class shares
of AC Fund and 1.35% of the average net assets of the  Investor  Class shares of
AC Large-Cap. The amount of the management fee is calculated on a class-by-class
basis daily and paid monthly.

The Statement of Additional  Information contains detailed information about the
calculation  of the  management  fee.  Out of that  fee,  the  advisor  pays all
expenses of managing and operating the funds except brokerage  expenses,  taxes,
interest,  fees and  expenses  of the  independent  directors  (including  legal
counsel fees), and extraordinary  expenses.  A portion of the management fee may
be  paid by the  funds'  advisor  to  unaffiliated  third  parties  who  provide
recordkeeping and  administrative  services that would otherwise be performed by
an affiliate of the advisor.

The Fund Management Teams

The advisor uses teams of portfolio  managers,  assistant portfolio managers and
analysts to manage the funds.  Teams meet regularly to review portfolio holdings
and to discuss purchase and sale activity.  Team members buy and sell securities
for a fund as they  see fit,  guided  by the  fund's  investment  objective  and
strategy.

The portfolio managers on the investment teams are identified below:

James E. Stowers III
Mr. Stowers, Chief Executive Officer and Portfolio Manager, has been a member of
the team that manages the funds since their  inception in November 1999. He also
is the Chief  Investment  Officer-U.S.  Growth Equities and as such oversees the
investment  discipline used by the funds and seven other growth funds. He joined
American  Century in 1981.  He has a  bachelor's  degree in finance from Arizona
State University.

John Small Jr.
Mr.  Small,  Portfolio  Manager,  has been a member of the team that manages the
funds since their  inception  in November  1999.  He was  promoted to  Portfolio
Manager in February  1999.  Since 1994 he has worked as an analyst and Portfolio
Manager for the Ultra fund. He joined American  Century in May 1991. He has more
than 20 years  experience  with the U.S. Air Force.  He has a bachelor's  degree
from Rockford College and a master's degree in laser optics physics from the Air
Force Institute of Technology. He also has an MBA from Baker University.

CALLOUT

Code of Ethics
American  Century has a Code of Ethics  designed to ensure that the interests of
fund  shareholders come before the interests of the people who manage the funds.
Among other  provisions,  the Code of Ethics  prohibits  portfolio  managers and
other investment  personnel from buying securities in an initial public offering
or from  profiting  from the  purchase and sale of the same  security  within 60
calendar days. In addition,  the Code of Ethics requires  portfolio managers and
other  employees  with  access  to  information  about the  purchase  or sale of
securities by the funds to obtain approval before executing  permitted  personal
trades.









Fundamental Investment Policies

Fundamental  investment  policies  contained  in  the  Statement  of  Additional
Information  and the  investment  objectives  of the  funds  may not be  changed
without a shareholder vote. The Board of Directors may change any other policies
and investment strategies.

Year 2000 Issues

Many of the world's  computer  systems were originally  programmed in a way that
prevented   them  from  properly   recognizing   or  processing   date-sensitive
information  relating to the Year 2000 and beyond.  Because  this may impact the
computer  systems of various  American  Century-affiliated  and external service
providers  for the  funds,  American  Century  formally  initiated  a Year  2000
readiness  project in July 1997.  It involves a team of  information  technology
professionals  assisted  by outside  consultants  and  guided by a  senior-level
steering committee.  The team's goal is to assess the impact of the Year 2000 on
American Century's systems,  renovate or replace  noncompliant  critical systems
and test  those  systems.  In  addition,  the team has been  working  to  gather
information  about the Year 2000  efforts  of the  funds'  other  major  service
providers.

Although  American Century believes its critical systems will function  properly
in the Year 2000, this is not guaranteed.  If the efforts of American Century or
its  external  service  providers  are  not  successful,  the  funds'  business,
particularly the provision of shareholder services, may be hampered.


In  addition,  the  issuers  of  securities  the funds own could  have Year 2000
computer problems. Foreign issuers, especially those in emerging markets, may be
more  susceptible  to such  problems than U.S.  issuers.  These  problems  could
negatively  affect the value of the issuers'  securities,  which, in turn, could
impact the funds'  performance.  The advisor has established a process to gather
publicly  available  information about the Year 2000 readiness of these issuers.
However,  this  process  may  not  uncover  all  relevant  information,  and the
information  gathered may not be complete and  accurate.  Moreover,  an issuer's
Year 2000  readiness is only one of many factors the fund  managers may consider
when making investment decisions, and other factors may receive greater weight.






Investing With American Century


Services Automatically Available to You

You  automatically  will have access to the services  listed below when you open
your account.  If you do not want these services,  see  "Conducting  Business in
Writing" below.

Conducting Business in Writing

If you prefer to conduct  business in writing only, you can indicate this on the
account  application.  If you  choose  this  option,  you must  provide  written
instructions  to invest,  exchange  and  redeem.  All  account  owners must sign
transaction  instructions (with signatures  guaranteed for redemptions in excess
of $100,000).  If you want to add services  later,  you can complete an Investor
Service Options form.

<TABLE>
<CAPTION>
Ways to Manage Your Account
- ---------------------------------------------------------------------------------------------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
<S>                               <C>                                            <C>
By telephone                       Open an account                                Make additional investments
Investor Relations                 If you are a current investor, you can open    Call us or use our Automated Information Line
1-800-345-2021                     an account by exchanging shares from another   if you have authorized us to invest from your
                                   American Century account.                      bank account.
Business, Not-For-Profit
and Employer-Sponsored             Exchange shares                                Sell shares
Retirement Plans                   Call us or use our Automated Information       Call an Investor Relations Representative.
1-800-345-3533                     Line if you have authorized us to accept
                                   telephone instructions.
Automated Information Line
1-800-345-8765
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
By mail or fax                     Open an account                                Make additional investments
P.O. Box 419200                    Send a signed, completed application and       Send us your check or money order for at
Kansas City, MO 64141-6200         check or money order payable to American       least $50 with an investment slip or $250
                                   Century Investments.                           without an investment slip. If you don't have
Fax                                                                               an investment slip, include your name,
816-340-7962                       Exchange shares                                address and account number on your check or
                                   Send us written instructions to exchange       money order.
                                   your shares from one American Century
                                   account to another.                            Sell shares
                                                                                  Send us written instructions or a redemption
                                                                                  form to sell shares. Call an Investor
                                                                                  Relations Representative to request a form.
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
Online                             Open an account                                Make additional investments
www.americancentury.com            If you are a current investor, you can open    Make an additional investment into an
                                   an account by exchanging shares from another   established American Century account if you
                                   American Century account.                      have authorized us to invest from your bank
                                                                                  account.
                                   Exchange shares
                                   Exchange shares from another American          Sell shares
                                   Century account.                               Not available.





A Note about Mailings to Shareholders

To reduce expenses and demonstrate respect for our environment,  we will deliver
most financial  reports,  prospectuses and account statements to households in a
single  envelope,  even if the accounts are registered under different names. If
you would like  additional  copies of  financial  reports  and  prospectuses  or
separate mailing of account statements, please call us.

Your Guide to Services and Policies

When you open an account,  you will receive a services guide, which explains the
services available to you and the policies of the funds and the transfer agent.

- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
By wire                          Open an account                                  Make additional investments
                                 Call us to set up your account or mail a         Follow the wire instructions provided in the
                                 completed application to the address provided    "Open an account" section.
                                 in the "By Mail" section and give your bank
                                 the following information.                       Sell shares
                                 Our bank information:                            You can receive redemption proceeds by wire
Please remember that if you               Commerce Bank N.A.                      or electronic transfer.
request redemptions by wire,              Routing No. 101000019
$10 will be deducted from the             Account No. 2804918
amount redeemed. Your bank       The fund name
also may charge a fee.           Your American Century account number*
                                 Your name                                        Exchange shares
                                 The contribution year (for IRAs only)            Not available.

                                 *For additional investments only

- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
Automatically                    Open an account                                  Make additional investments
                                 Not available.                                   With the automatic investment privilege, you
                                                                                  can purchase shares on a regular basis. You
                                 Exchange shares                                  must invest at least $600 per year per
                                 Send us written instructions to set up an        account.
                                 automatic exchange of your shares from one
                                 American Century account to another.             Sell shares
                                                                                  If you have at least $10,000 in your account,
                                                                                  you may sell shares automatically by
                                                                                  establishing Check-A-Month or Automatic
                                                                                  Redemption plans.

- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------------------------------------------------------
In person                        If you prefer to handle your transactions in person, visit one of our Investor Centers and a
                                 representative can help you open an account, make additional investments and sell or exchange
                                 shares.

                                 4500 Main St.                                    4917 Town Center Drive
                                 Kansas City, Missouri                            Leawood, Kansas
                                 8 a.m. to 5:30 p.m., Monday-Friday               8 a.m. to 6 p.m., Monday-Friday
                                                                                  8 a.m. to noon, Saturday

                                 1665 Charleston Road                             9445 East County Line Road, Suite A
                                 Mountain View, California                        Englewood, Colorado
                                 8 a.m. to 5 p.m., Monday-Friday                  8 a.m. to 6 p.m., Monday-Friday
                                                                                  8 a.m. to noon, Saturday
</TABLE>




Minimum Initial Investment Amount
To open an account, the minimum investment is $10,000

Redemption of Shares in Low-Balance Accounts

If your  redemption  activity  causes  your  account  balance  to fall below the
minimum initial  investment  amount,  we will notify you and give you 90 days to
meet the minimum. If you do not meet the deadline,  American Century will redeem
the shares in the account and send the proceeds to your address of record.

Abusive Trading Practices

We do not permit market timing or other abusive trading  practices in our funds.
Excessive,  short-term  (market timing) or other abusive  trading  practices may
disrupt portfolio management  strategies and harm fund performance.  To minimize
harm to the funds and their  shareholders,  we  reserve  the right to reject any
purchase order (including  exchanges) from any investor we believe has a history
of  abusive  trading  or  whose  trading,  in our  judgment,  has been or may be
disruptive to a fund. In making this judgment,  we may consider  trading done in
multiple  accounts under common ownership or control.  We also reserve the right
to delay  delivery of your  redemption  proceeds--up  to seven days--or to honor
certain redemptions with securities,  rather than cash, as described in the next
section.

Special Requirements for Large Redemptions

If,  during any 90-day  period,  you redeem fund shares worth more than $250,000
(or 1% of the assets of the fund if that percentage is less than  $250,000),  we
reserve  the right to pay part or all of the  redemption  proceeds  in excess of
this amount in readily marketable securities instead of cash. If we make payment
in securities,  we will value the securities  selected by the fund managers,  in
the same manner as we do in computing the fund's net asset value. We may provide
these securities in lieu of cash without prior notice.

If your  redemption  would  exceed  this limit and you would like to avoid being
paid in  securities,  please  provide us with an  unconditional  instruction  to
redeem at least 15 days prior to the date on which the redemption transaction is
to occur.  The instruction must specify the dollar amount or number of shares to
be redeemed and the date of the  transaction.  This  minimizes the effect of the
redemption on the fund and its remaining shareholders.








Investing through Financial Intermediaries

If you do business  with us through a  financial  intermediary  or a  retirement
plan,  your ability to purchase,  exchange and redeem  shares will depend on the
policies of that  entity.  Some  policy  differences  may  include

o   minimum investment requirements

o   exchange policies

o   fund choices

o   cutoff time for investments

Please  contact  your  financial  intermediary  or plan  sponsor  for a complete
description of its policies.

Certain  financial   intermediaries  perform  recordkeeping  and  administrative
services  for their  clients  that would  otherwise  be  performed  by  American
Century's transfer agent. In some  circumstances,  American Century will pay the
service provider a fee for performing those services.

Although  transactions in fund shares may be made directly with American Century
at no charge,  you also may purchase,  redeem and exchange  fund shares  through
financial  intermediaries that charge a transaction-based or other fee for their
services. Those charges are retained by the intermediary and are not shared with
American Century or the funds.

American Century has contracts with certain financial  intermediaries  requiring
them to track  the time  investment  orders  are  received  and to  comply  with
procedures  relating to the  transmission  of orders.  The funds have authorized
those  intermediaries  to accept  orders on each fund's behalf up to the time at
which the net asset value is  determined.  If those  orders are  transmitted  to
American  Century and paid for in  accordance  with the  contract,  they will be
priced at the net asset value next determined  after your request is received in
the form required by the intermediary on a fund's behalf.

CALLOUT
Financial intermediaries include banks, broker-dealers,  insurance companies and
investment advisors.







Share Price and Distributions


Share Price

American  Century  determines  the net asset  value (NAV) of the funds as of the
close of regular trading on the New York Stock Exchange  (usually 4 p.m. Eastern
time) on each day the  Exchange is open.  On days when the  Exchange is not open
(including  certain U.S.  holidays),  we do not  calculate the NAV. The NAV of a
fund share is the current  value of the fund's  assets,  minus any  liabilities,
divided by the number of fund shares outstanding.

If  current  market  prices  of  securities  owned  by a fund  are  not  readily
available,  the  advisor  may  determine  their  fair value in  accordance  with
procedures adopted by the fund's Board. Trading of securities in foreign markets
may not take place every day the Exchange is open. Also, trading in some foreign
markets  may take  place  on  weekends  or  holidays  when a  fund's  NAV is not
calculated. So, the value of a fund's portfolio may be affected on days when you
can't purchase or redeem shares of the fund.

We will price your purchase,  exchange or redemption at the NAV next  determined
after we receive your transaction request in good order.

Distributions

Federal tax laws require each fund to make  distributions to its shareholders in
order  to  qualify  as a  "regulated  investment  company."  Qualification  as a
regulated  investment  company means that the funds will not be subject to state
or federal  income  tax on  amounts  distributed.  The  distributions  generally
consist of dividends and interest received, as well as capital gains realized on
the sale of investment  securities.  Each fund generally pays distributions from
net income and capital  gains,  if any,  once a year in December.  They may make
more frequent  distributions  if necessary to comply with Internal  Revenue Code
provisions.

You will participate in fund distributions,  when they are declared, starting on
the day after your purchase is effective. For example, if you purchase shares on
a day that a distribution is declared,  you will not receive that  distribution.
If you redeem shares, you will receive any distribution  declared on the day you
redeem.  If you redeem all shares,  we will include any  distributions  received
with your redemption proceeds.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.  For shareholders  investing  through taxable  accounts,  we will
reinvest  distributions unless you elect to receive them in cash. Please consult
your services guide for further  information  regarding  distributions  and your
distribution options.

CALLOUTS

The net asset value of a fund is the price of the fund's shares.

Capital gains are increases in the values of capital assets, such as stock, from
the time the assets are  purchased.  Tax  becomes  due on capital  gains once an
asset is sold.






Taxes

The tax  consequences  of  owning  shares of the funds  will vary  depending  on
whether you own them through a taxable or tax-deferred account. Tax consequences
result from distributions by the funds of dividend and interest income they have
received  or  capital  gains  they  have  generated   through  their  investment
activities.  Tax consequences also result from sales of fund shares by investors
after the net asset value has increased or decreased.

Tax-Deferred Accounts

If you purchase fund shares through a tax-deferred  account, such as an IRA or a
qualified  employer-sponsored  retirement  or savings  plan,  income and capital
gains  distributions  usually will not be subject to current taxation,  but will
accumulate in your account  under the plan on a  tax-deferred  basis.  Likewise,
moving  from one fund to  another  fund  within a plan or  tax-deferred  account
generally  will  not  cause  you to be  taxed.  For  information  about  the tax
consequences of making  purchases or withdrawals  through an  employer-sponsored
retirement  or  savings  plan,  or  through  an IRA,  please  consult  your plan
administrator, your summary plan description or a professional tax advisor.

Taxable Accounts

If you own fund shares through a taxable account,  distributions by the fund and
sales by you of fund shares may cause you to be taxed.

Taxability of Distributions

Fund distributions may consist of income earned by the fund from sources such as
dividends  and  interest,  or  capital  gains  generated  from  the sale of fund
investments. Distributions of income are taxed as ordinary income. Distributions
of capital gains are classified  either as short term or long term and are taxed
as follows:


<TABLE>
Type of Distribution                       Tax Rate for 15% Bracket                 Tax Rate for 28% Bracket or above
- ------------------------------------------ ---------------------------------------- -----------------------------------------
<S>                                        <C>                                      <C>
Short-term capital gains                   Ordinary income rate                     Ordinary income rate
Long-term capital gains                    10%                                      20%
</TABLE>

The tax status of any  distributions  of capital gains is determined by how long
the fund held the  underlying  security that was sold,  not by how long you have
been  invested  in the  fund or  whether  you  reinvest  your  distributions  in
additional  shares or take them in cash.  American Century will send you the tax
status of fund  distributions  for each  calendar  year in an annual tax mailing
(Form 1099-DIV) from the fund.

Distributions  also may be subject to state and local taxes.  Because everyone's
tax situation is unique,  always  consult your tax  professional  about federal,
state and local tax consequences.

Taxes on Transactions

Your  redemptions -- including  exchanges to other American Century funds -- are
subject to capital  gains tax.  The table above can provide a general  guide for
your potential tax liability when selling or exchanging fund shares.  Short-term
capital gains are gains on fund shares you held for 12 months or less. Long-term
capital gains are gains on fund shares you held for more than 12 months. If your
shares  decrease in value,  their sale or exchange will result in a long-term or
short-term  capital loss.  However,  you should note that any loss realized upon
the sale or  redemption of shares held for six months or less will be treated as
a long-term  capital loss to the extent of any distribution of long-term capital
gains  to you  with  respect  to  such  shares.  If a loss  is  realized  on the
redemption of fund shares,  the reinvestment in additional fund shares within 30
days before or after the redemption may be subject to the wash sale rules of the
Internal  Revenue Code.  This may result in a postponement of the recognition of
such loss for federal income tax purposes.  If you have not certified to us that
your Social Security number or tax identification number is correct and that you
are not subject to 31% withholding, we are required to withhold and remit 31% of
dividends, capital gains distributions and redemptions to the IRS.


CALLOUT

Buying a Dividend
Purchasing  fund shares in a taxable  account  shortly before a distribution  is
sometimes known as buying a dividend.  In taxable accounts,  you must pay income
taxes on the  distribution  whether you reinvest the  distribution or take it in
cash. In addition,  you will have to pay taxes on the  distribution  whether the
value of your  investment  decreased,  increased  or remained the same after you
bought the fund shares.

The risk in buying a dividend  is that a fund's  portfolio  may build up taxable
gains throughout the period covered by a distribution, as securities are sold at
a profit. We distribute those gains to you, after  subtracting any losses,  even
if you did not own the shares when the gains occurred.

If you buy a  dividend,  you incur the full tax  liability  of the  distribution
period,  but you may not enjoy the full  benefit  of the gains  realized  in the
fund's portfolio.








Multiple Class Information

American   Century   offers  three  classes  of  the  funds:   Investor   Class,
Institutional Class and Advisor Class. The shares offered by this Prospectus are
Investor Class shares and have no up-front or deferred  charges,  commissions or
12b-1 fees.

American  Century offers the other classes of shares  primarily to institutional
investors    through    institutional    distribution    channels,    such    as
employer-sponsored  retirement  plans,  or  through  banks,  broker-dealers  and
insurance  companies.  The other classes have different  fees,  expenses  and/or
minimum  investment  requirements than the Investor Class. The difference in the
fee structures between the classes is the result of their separate  arrangements
for shareholder and  distribution  services and not the result of any difference
in  amounts  charged  by the  advisor  for core  investment  advisory  services.
Accordingly,  the  core  investment  advisory  expenses  do not  vary by  class.
Different fees and expenses will affect performance.  For additional information
concerning the other classes of shares not offered by this  Prospectus,  call us
at  1-800-345-3533  for  Advisor or  Institutional  Class  shares.  You also can
contact a sales  representative  or  financial  intermediary  who  offers  those
classes of shares.

Except as  described  below,  all  classes  of  shares of a fund have  identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions.  The only differences  between the classes are (a) each class may be
subject to  different  expenses  specific  to that  class;  (b) each class has a
different  identifying  designation or name; (c) each class has exclusive voting
rights with respect to matters solely  affecting such class;  (d) each class may
have different exchange privileges;  and (e) the Institutional Class may provide
for automatic  conversion  from that class into shares of the Investor  Class of
the same fund.







More information about the funds is contained in these documents

Annual and Semiannual Reports.  These reports contain more information about the
funds'  investments  and the market  conditions and investment  strategies  that
significantly  affected  the funds'  performance  during the most recent  fiscal
period.

Statement of Additional  Information.  The SAI contains a more  detailed,  legal
description  of the funds'  operations,  investment  restrictions,  policies and
practices. The SAI is incorporated by reference into this Prospectus. This means
that it is legally part of this Prospectus, even if you don't request a copy.

You may obtain a free copy of the SAI or annual and semiannual reports,  and ask
questions about the funds or your accounts,  by contacting  American  Century at
the address or telephone numbers listed below.

You also can get  information  about  the  funds  (including  the SAI)  from the
Securities and Exchange Commission (SEC).

In person                  SEC Public Reference Room
                           Washington, D.C.
                           Call 1-800-SEC-0330 for location and hours.
On the internet            WWW.SEC.GOV.
By mail                    SEC Public Reference Section
                           Washington, D.C. 20549-6009
                           (The SEC will charge a fee for copying the
                            documents.)

Investment Company Act File No. 811-0816


                          American Century Investments
                                 P.O. Box 419200
                        Kansas City, Missouri 64141-6200

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


9910
SH-PRS-xxxxx
<PAGE>
American Century


Prospectus

                                                                         AC Fund
                                                               AC Large-Cap Fund
                                                             INSTITUTIONAL CLASS
                                                                NOVEMBER 8, 1999

THE  SECURITIES AND EXCHANGE  COMMISSION  HAS NOT APPROVED OR DISAPPROVED  THESE
SECURITIES OR DETERMINED IF THIS PROSPECTUS IS ACCURATE OR COMPLETE.  ANYONE WHO
TELLS YOU OTHERWISE IS COMMITTING A CRIME.



                                          DISTRIBUTED BY FUNDS DISTRIBUTOR, INC.










Dear Investor,

    Reading a prospectus doesn't have to be a chore. We've done the hard work so
you can focus on what's  important--learning  about the funds and tracking  your
investments. Take a look inside, and you'll see this prospectus is different. It
takes a clear-cut approach to fund information.

   Here's what you'll find:

   o  The funds' primary investments and risks

   o  A description of who may or may not want to invest in the funds

   o  An overview of services available and ways to manage your accounts

   o  Helpful tips and definitions of key investment terms

    Whether you're a current investor or investing in mutual funds for the first
time, this prospectus will give you a clear  understanding  of the funds. If you
have questions,  our Service  Representatives are available weekdays 8 a.m. to 5
p.m.  Central time. Our toll-free number is  1-800-345-3533.  We look forward to
helping you achieve your financial goals.



      Sincerely,





      Mark Killen
      Senior Vice President
      American Century Investment Services, Inc.






Table of Contents


An Overview of the Funds.......................................................2

Fund Performance History.......................................................3

Fees and Expenses..............................................................4

Information about the Funds
AC Fund
AC Large-Cap Fund..............................................................5


Management.....................................................................7

Investing with American Century...............................................XX

Share Price and Distributions.................................................XX

Taxes.........................................................................XX




CALLOUT
Throughout  this  book  you'll  find  definitions  of key  investment  terms and
phrases.  When you see a word printed in green italics,  look for its definition
in the left margin.

This symbol highlights special information and helpful tips.






An Overview of the Funds


What are the funds' investment objectives?

These funds seek long-term capital growth.

What are the funds' primary investment strategies and principal risks?

The funds use a systematic, highly-automated approach to common stock investing.
This approach is designed to identify companies that are growing and whose share
price  patterns  suggest  their  stocks are likely to increase in value.  A more
detailed description of the funds' investment style begins on page __.

The funds' principal risks include

o   High Turnover - The  funds'portfolio  turnover may be very high.  This could
    result in relatively high commission costs and capital gains tax liabilities
    for the funds and their shareholders, which may hurt the funds' performance.

o   Market Risk - The value of a fund's  shares will go up and down based on the
    performance  of the  companies  whose  securities  it owns and other factors
    affecting the securities market generally.

o   Price   Volatility  -  The  value  of  the  funds'   shares  may   fluctuate
    significantly in the short term.

o   Principal  Loss - As with all mutual  funds,  if you sell your  shares  when
    their value is less than the price you paid, you will lose money.

o   Nondiversification  - From time to time,  the funds  may  pursue  investment
    opportunities  that cause them to become  temporarily  nondiversified.  In a
    nondiversified  fund, a price change in a single security may have a greater
    impact on the fund's  share  price  than would be the case in a  diversified
    fund.


Who may want to invest in the funds?

The funds may be a good investment if you are

o   seeking long-term capital growth from your investment

o   comfortable with the funds' short-term price volatility

o   comfortable with the risks associated with the funds' investment strategy

o   investing through an IRA or other tax-advantaged retirement plan


Who may not want to invest in the funds?

The funds may not be a good investment if you are

o   seeking current income from your investment

o   investing for a short period of time

o   uncomfortable with short-term volatility in the value of your investment

CALLOUT

Portfolio  turnover  is a  measure  of how  frequently  a fund  buys  and  sells
portfolio securities.

CALLOUT

A  nondiversified  fund may  invest a  greater  percentage  of its  assets  in a
particular portfolio security than may a diversified fund.

CALLOUT

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


Fund Performance History

As new funds, the funds' performance  history is not available as of the date of
this Prospectus.

CALLOUT

For current performance  information,  please call us at 1-800-345-3533 or visit
American Century's Web site at www.americancentury.com.







Fees and Expenses

There are no sales loads, fees or other charges

o to buy fund shares directly from American Century

o to reinvest dividends in additional shares

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

Shareholder Transaction Expenses (fees paid directly from your investment)

                                       Redemption/Exchange Fee(as a percentage
                                            of amount redeemed/exchanged)
Shares held for less than five years (1)             2.0%
Shares held for five years or more                   None

1 The fee withheld from redemption/exchange proceeds is retained by the fund.

Annual Operating Expenses (expenses that are deducted from fund assets)

<TABLE>
                  Management   Distribution and      Other           Total Annual Fund
                  Fee          Service (12b-1) Fees  Expenses(1)     Operating Expenses
                  ---          --------------------  -----------     ------------------
<S>               <C>                                <C>             <C>
AC Fund           1.30%        None                  0.00%           1.30%
AC Large-Cap      1.15%        None                  0.00%           1.15%
</TABLE>

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

Example
The examples in the table below are intended to help you compare the costs of
investing in a fund with the costs of investing in other mutual funds. Assuming
you ...

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

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

                  1 year            3 years
AC Fund            $339              $633
AC Large-Cap       $324              $588


You would pay the following expenses if you did not redeem your shares:

                  1 year            3 years
AC Fund           $132              $410
AC Large-Cap      $117              $364


CALLOUT

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






Information about the Funds


AC Fund
AC Large-Cap Fund

What are the funds'  investment  objectives?  These funds seek long-term capital
growth.

How do the funds pursue their investment objectives?

The funds use a systematic,  highly-automated approach to common stock investing
developed by American  Century.  This approach  relies  heavily on  quantitative
tools  to  identify  attractive  investment   opportunities  on  a  disciplined,
consistent  basis.  It  utilizes a  fundamental  screening  process to  identify
attractive  companies and a technical signal generator to determine  optimum buy
and sell points based on a stock's historical price trends.

The quantitative tools used to identify attractive  companies do so by screening
thousands of publicly traded securities to identify those that are growing.  The
methodology  identifies  companies  whose earnings and revenues are growing at a
successively faster, or accelerating, pace.

A second portion of the methodology  attempts to identify  companies whose share
price  patterns  suggest  that they are  likely to either  rise or fall in price
(commonly  referred to as  technical  analysis).  This  process is  particularly
oriented to identifying  attractive  price patterns for companies  demonstrating
the accelerating growth described above. These would be candidates for purchase.
Conversely,  companies  whose share price  patterns  suggest  they are likely to
decline  in price  would be  candidates  for  sale,  if  owned by the  fund.  On
occasion,  the process may look  favorably on share price  patterns  that appear
attractive even though the earnings of the underlying company are not growing at
an accelerating rate.

Although the funds are expected to invest primarily in U.S. companies,  there is
no limit on the  amount of assets  the funds can  invest in  foreign  companies.
Investments in foreign  securities present some unique risks that are more fully
described in the funds' Statement of Additional Information.

The fund  managers do not attempt to time the  market.  Instead,  they intend to
keep the funds  essentially  fully invested in stocks regardless of the movement
of stock prices generally.  However, in the fund managers' discretion, the funds
may  invest up to 100% of their  assets  in U.S.  government  securities  if the
funds' investment  methodology fails to generate sufficient  investment ideas or
to respond to adverse market, economic, political or other conditions. The funds
may not  achieve  their  investment  objectives  while  taking  such a temporary
defensive position. When the managers believe that it is prudent, the funds also
may  invest a portion  of their  assets in  convertible  securities,  short-term
instruments, and non-leveraged futures and options. Futures and options can help
the funds' cash assets  remain  liquid while  performing  more like stocks.  The
funds  have a policy  governing  futures  and  options  and  similar  derivative
securities  to help  manage the risk of these types of  investments.  A complete
description of the derivatives policy is included in the Statement of Additional
Information.

CALLOUT

Accelerating growth is shown, for example, by growth that is faster this quarter
than last or faster this year than the year before.

CALLOUT

Non-leveraged  means that the fund may not invest in futures  contracts where it
would be possible to lose more than the fund invested.

What kinds of securities do the funds buy?

The funds will usually purchase common stocks of U.S. and foreign companies, but
they can  purchase  other types of  securities  as well,  such as  domestic  and
foreign preferred stocks, convertible securities,  equity equivalent securities,
notes,  bonds and other debt securities.  The funds limit their purchase of debt
securities to investment-grade obligations.

What are the differences between the funds?

AC Large-Cap generally invests in larger companies.  Companies  considered to be
large generally have a market  capitalization in excess of $5 billion.  AC Fund,
by contrast, may invest in companies of any size.

What are the primary risks of investing in the funds?

The process  driving the funds is  specifically  designed to respond  quickly to
changing stock market conditions. As a result, the funds' portfolio turnover may
be  significantly  higher than that of many other  funds.  This heavy  turnover,
perhaps as much as 200-300% per year or more,  could result in  relatively  high
commission  costs,  substantial  capital gain  realizations  for the funds,  and
capital gains tax liabilities for the funds' shareholders.

The  value of a fund's  shares  depends  on the  value of the  stocks  and other
securities it owns. The value of the  individual  securities a 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.

The fund managers may buy a large amount of a company's stock quickly, and often
will dispose of it quickly if the company's earnings or revenues decline.  While
the managers believe this strategy provides substantial  appreciation  potential
over the long  term,  in the short term it can  create a  significant  amount of
share price volatility.  This volatility can be greater than that of the average
stock fund.

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

Market  performance  tends to be cyclical,  and in the various  cycles,  certain
investment  styles may fall in and out of favor.  If the market is not  favoring
the funds' style,  the funds' gains may not be as big as, or their losses may be
bigger than, other equity funds using different investment styles.

Although the fund managers intend to invest the funds' assets  primarily in U.S.
stocks, the funds may invest in securities of foreign companies. To the extent a
fund  invests  in  foreign  securities,  the  overall  risk of the fund could be
affected.   Foreign   securities  can  have  certain  unique  risks,   including
fluctuations  in currency  exchange  rates,  less stable  political and economic
structures,  reduced  availability  of public  information,  and lack of uniform
financial reporting and regulatory  practices similar to those that apply in the
United  States.  These factors make  investing in foreign  securities  generally
riskier than investing in U.S. stocks.


CALLOUT

Market capitalization is the value of a company as determined by multiplying the
number of shares of its stock outstanding by its current market price per share.








Management


Who manages the funds?

The Board of Directors,  investment  advisor and fund  management  team play key
roles in the management of the funds.

The Board of Directors

The Board of Directors  oversees the  management of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Directors  does not manage the funds,  it has hired an investment  advisor to do
so. More than two-thirds of the directors are independent of the funds' advisor;
that is, they are not employed by and have no financial interest in the advisor.

The Investment Advisor

The funds' investment  advisor is American Century Investment  Management,  Inc.
The advisor has been  managing  mutual  funds  since 1958.  American  Century is
headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible  for managing the investment  portfolios of the funds
and directing the purchase and sale of their investment securities.  The advisor
also arranges for transfer agency,  custody and all other services necessary for
the funds to operate.

For the  services  it  provides  to the funds,  the  advisor  receives a unified
management  fee of 1.30% of the  average net assets of the  Institutional  Class
shares of AC Fund and 1.15% of the average net assets of the Institutional Class
shares of AC  Large-Cap.  The amount of the  management  fee is  calculated on a
class-by-class basis daily and paid monthly.

The Statement of Additional  Information contains detailed information about the
calculation  of the  management  fee.  Out of that  fee,  the  advisor  pays all
expenses of managing and operating the funds except brokerage  expenses,  taxes,
interest,  fees and  expenses  of the  independent  directors  (including  legal
counsel fees), and extraordinary  expenses.  A portion of the management fee may
be  paid by the  funds'  advisor  to  unaffiliated  third  parties  who  provide
recordkeeping and  administrative  services that would otherwise be performed by
an affiliate of the advisor.








The Fund Management Teams

The advisor uses teams of portfolio  managers,  assistant portfolio managers and
analysts to manage the funds.  Teams meet regularly to review portfolio holdings
and to discuss purchase and sale activity.  Team members buy and sell securities
for a fund as they  see fit,  guided  by the  fund's  investment  objective  and
strategy.

The portfolio managers on the investment teams are identified below:

James E. Stowers III
Mr. Stowers, Chief Executive Officer and Portfolio Manager, has been a member of
the team that manages the funds since their  inception in November 1999. He also
is the Chief  Investment  Officer-U.S.  Growth Equities and as such oversees the
investment  discipline used by the funds and seven other growth funds. He joined
American  Century in 1981.  He has a  bachelor's  degree in finance from Arizona
State University.

John Small Jr.
Mr.  Small,  Portfolio  Manager,  has been a member of the team that manages the
funds since their  inception  in November  1999.  He was  promoted to  Portfolio
Manager in February  1999.  Since 1994 he has worked as an analyst and Portfolio
Manager for the Ultra fund. He joined American  Century in May 1991. He has more
than 20 years  experience  with the U.S. Air Force.  He has a bachelor's  degree
from Rockford College and a master's degree in laser optics physics from the Air
Force Institute of Technology. He also has an MBA from Baker University.


CALLOUT

Code of Ethics
American  Century has a Code of Ethics  designed to ensure that the interests of
fund  shareholders come before the interests of the people who manage the funds.
Among other  provisions,  the Code of Ethics  prohibits  portfolio  managers and
other investment  personnel from buying securities in an initial public offering
or from  profiting  from the  purchase and sale of the same  security  within 60
calendar days. In addition,  the Code of Ethics requires  portfolio managers and
other  employees  with  access  to  information  about the  purchase  or sale of
securities by the funds to obtain approval before executing  permitted  personal
trades.









Fundamental Investment Policies

Fundamental  investment  policies  contained  in  the  Statement  of  Additional
Information and the investment objective of the funds may not be changed without
a shareholder  vote.  The Board of Directors  may change any other  policies and
investment strategies.

Year 2000 Issues

Many of the world's  computer  systems were originally  programmed in a way that
prevented   them  from  properly   recognizing   or  processing   date-sensitive
information  relating to the Year 2000 and beyond.  Because  this may impact the
computer  systems of various  American  Century-affiliated  and external service
providers  for the  funds,  American  Century  formally  initiated  a Year  2000
readiness  project in July 1997.  It involves a team of  information  technology
professionals  assisted  by outside  consultants  and  guided by a  senior-level
steering committee.  The team's goal is to assess the impact of the Year 2000 on
American Century's systems,  renovate or replace  noncompliant  critical systems
and test  those  systems.  In  addition,  the team has been  working  to  gather
information  about the Year 2000  efforts  of the  funds'  other  major  service
providers.

Although  American Century believes its critical systems will function  properly
in the Year 2000, this is not guaranteed.  If the efforts of American Century or
its  external  service  providers  are  not  successful,  the  funds'  business,
particularly the provision of shareholder services, may be hampered.

In  addition,  the  issuers  of  securities  the funds own could  have Year 2000
computer problems. Foreign issuers, especially those in emerging markets, may be
more  susceptible  to such  problems than U.S.  issuers.  These  problems  could
negatively  affect the value of the issuers'  securities,  which, in turn, could
impact the funds'  performance.  The advisor has established a process to gather
publicly  available  information about the Year 2000 readiness of these issuers.
However,  this  process  may  not  uncover  all  relevant  information,  and the
information  gathered may not be complete and  accurate.  Moreover,  an issuer's
Year 2000  readiness is only one of many factors the fund  managers may consider
when making investment decisions, and other factors may receive greater weight.






Investing With American Century


Eligibility for Institutional Class Shares

The  Institutional  Class  shares  are  made  available  for  purchase  by large
institutional  shareholders,  such  as  bank  trust  departments,  corporations,
retirement plans,  endowments,  foundations and financial advisors that meet the
funds'  minimum  investment  requirements.  Institutional  Class  shares are not
available for purchase by insurance  companies for variable annuity and variable
life products.


Minimum Initial Investment Amounts

The minimum investment is $5 million ($3 million for endowments and foundations)
per fund.  If you invest with us through a financial  intermediary,  the minimum
investment  requirement  may be met by  aggregating  the  investments of various
clients of your financial  intermediary.  The minimum investment requirement may
be waived if you or your financial intermediary, if applicable, has an aggregate
investment  in our  family  of funds of $10  million  or more  ($5  million  for
endowments  and  foundations).  In addition,  financial  intermediaries  or plan
recordkeepers   may  require   retirement  plans  to  meet  certain   additional
requirements, such as plan size or a minimum level of assets per participant, in
order to be eligible to purchase Institutional Class shares.


Redemption of Shares in Low-Balance Accounts

If your balance or the balance of your  financial  intermediary,  if applicable,
falls below the minimum investment requirements due to redemptions or exchanges,
we reserve the right to convert your shares to Investor Class shares of the same
fund.  The  Investor  Class shares have a unified  management  fee that is 0.20%
higher than the Institutional Class.


Services Automatically Available to You

You  automatically  will have access to the services  listed below when you open
your account.  If you do not want these services,  see  "Conducting  Business in
Writing" below.

Conducting Business in Writing

If you prefer to conduct  business in writing only, you can indicate this on the
account  application.  If you  choose  this  option,  you must  provide  written
instructions  to invest,  exchange  and  redeem.  All  account  owners must sign
transaction  instructions (with signatures  guaranteed for redemptions in excess
of $100,000).  If you want to add services  later,  you can complete an Investor
Service Options form.

<TABLE>
<CAPTION>
Ways to Manage Your Account
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
<S>                                <C>                                            <C>
By telephone                       Open an account                                Make additional investments
Service Represetative              If you are a current investor, you can open    Call us if you have authorized us to invest
1-800-345-3533                     an account by exchanging shares from another   from your bank account.
                                   American Century account.
                                                                                  Sell shares
                                   Exchange shares                                Call a Service Representative.
                                   Call us or use our Automated Information
                                   Line if you have authorized us to accept
                                   telephone instructions.
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
By mail or fax                     Open an account                                Make additional investments
P.O. Box 419385                    Send a signed, completed application and       Send us your check or money order for at
Kansas City, MO 64141-6385         check or money order payable to American       least $50 with an investment slip or $250
                                   Century Investments.                           without an investment slip. If you don't have
Fax                                                                               an investment slip, include your name,
816-340-4655                       Exchange shares                                address and account number on your check or
                                   Send us written instructions to exchange       money order.
                                   your shares from one American Century
                                   account to another.                            Sell shares
                                                                                  Send us written instructions or a redemption
                                                                                  form to sell shares. Call a Service
                                                                                  Representative to request a form.
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
By wire                            Open an account                                Make additional investments
                                   Call us to set up your account or mail a       Follow the wire instructions provided in the
                                   completed application to the address           "Open an account" section
                                   provided in the "By Mail" section and give
                                   your bank the following information.           Sell shares
                                   Our bank information:                          You can receive redemption proceeds by wire
*    Please remember that if                Commerce Bank N.A.                    or electronic transfer.
     you request redemptions by             Routing No. 101000019
     wire, $10 will be deducted             Account No. 2804918
     from the amount redeemed.     The fund name
     Your bank also may charge a   Your American Century account number*
     fee.                          Your name                                      Exchange shares
                                   The contribution year (for IRAs only)          Not available.

                                   *For additional investments only

- ---------------------------------- ---------------------------------------------- -----------------------------------------------
- ---------------------------------- ---------------------------------------------- -----------------------------------------------
Automatically                      Open an account                                Make additional investments
                                   Not available.                                 Select "Establish Automatic Investments" on
                                                                                  your account application to make automatic
                                   Exchange shares                                purchases of shares on a regular basis. You
                                   Send us written instructions to set up an      must invest at least $600 per year per
                                   automatic exchange of your shares from one     account.
                                   American Century account to another.
                                                                                  Sell shares
                                                                                  If you have at least $10,000 in your account,
                                                                                  you may sell shares automatically by
                                                                                  establishing Check-A-Month or Automatic
                                                                                  Redemption plans.
</TABLE>









Abusive Trading Practices

We do not permit market timing or other abusive trading  practices in our funds.
Excessive,  short-term  (market timing) or other abusive  trading  practices may
disrupt portfolio management  strategies and harm fund performance.  To minimize
harm to the funds and their  shareholders,  we  reserve  the right to reject any
purchase order (including  exchanges) from any investor we believe has a history
of  abusive  trading  or  whose  trading,  in our  judgment,  has been or may be
disruptive to a fund. In making this judgment,  we may consider  trading done in
multiple  accounts under common ownership or control.  We also reserve the right
to delay  delivery of your  redemption  proceeds--up  to seven days--or to honor
certain redemptions with securities,  rather than cash, as described in the next
section.

Special Requirements for Large Redemptions

If,  during any 90-day  period,  you redeem fund shares worth more than $250,000
(or 1% of the assets of the fund if that percentage is less than  $250,000),  we
reserve  the right to pay part or all of the  redemption  proceeds  in excess of
this amount in readily marketable securities instead of cash. If we make payment
in securities,  we will value the securities  selected by the fund managers,  in
the same manner as we do in computing the fund's net asset value. We may provide
these securities in lieu of cash without prior notice.

If your  redemption  would  exceed  this limit and you would like to avoid being
paid in  securities,  please  provide us with an  unconditional  instruction  to
redeem at least 15 days prior to the date on which the redemption transaction is
to occur.  The instruction must specify the dollar amount or number of shares to
be redeemed and the date of the  transaction.  This  minimizes the effect of the
redemption on the fund and its remaining shareholders.








Investing through Financial Intermediaries

If you own or are considering purchasing shares through a financial intermediary
or a retirement plan, your ability to purchase,  exchange and redeem shares will
depend on the policies of that entity. Some policy differences may include

*   minimum investment requirements

*   exchange policies

*   fund choices

*   cutoff time for investments

Please  contact  your  financial  intermediary  or plan  sponsor  for a complete
description of its policies.

Certain  financial   intermediaries  perform  recordkeeping  and  administrative
services  for their  clients  that would  otherwise  be  performed  by  American
Century's transfer agent. In some  circumstances,  American Century will pay the
service provider a fee for performing those services.

Although  transactions in fund shares may be made directly with American Century
at no charge,  you also may purchase,  redeem and exchange  fund shares  through
financial  intermediaries that charge a transaction-based or other fee for their
services. Those charges are retained by the intermediary and are not shared with
American Century or the funds.

American Century has contracts with certain financial  intermediaries  requiring
them to track  the time  investment  orders  are  received  and to  comply  with
procedures  relating to the  transmission  of orders.  The funds have authorized
those  intermediaries  to accept  orders on each fund's behalf up to the time at
which the net asset value is  determined.  If those  orders are  transmitted  to
American  Century and paid for in  accordance  with the  contract,  they will be
priced at the net asset value next determined  after your request is received in
the form required by the intermediary on a fund's behalf.


CALLOUT

Financial intermediaries include banks, broker-dealers,  insurance companies and
investment advisors.







Share Price and Distributions


Share Price

American  Century  determines  the net asset  value (NAV) of the funds as of the
close of regular trading on the New York Stock Exchange  (usually 4 p.m. Eastern
time) on each day the  Exchange is open.  On days when the  Exchange is not open
(including  certain U.S.  holidays),  we do not  calculate the NAV. The NAV of a
fund share is the current  value of the fund's  assets,  minus any  liabilities,
divided by the number of fund shares outstanding.

If  current  market  prices  of  securities  owned  by a fund  are  not  readily
available,  the  advisor  may  determine  their  fair value in  accordance  with
procedures adopted by the fund's Board. Trading of securities in foreign markets
may not take place every day the Exchange is open. Also, trading in some foreign
markets  may take  place  on  weekends  or  holidays  when a  fund's  NAV is not
calculated. So, the value of a fund's portfolio may be affected on days when you
can't purchase or redeem shares of the fund.

We will price your purchase,  exchange or redemption at the NAV next  determined
after we receive your transaction request in good order.


Distributions

Federal tax laws require each fund to make  distributions to its shareholders in
order  to  qualify  as a  "regulated  investment  company."  Qualification  as a
regulated  investment  company means that the funds will not be subject to state
or federal  income  tax on  amounts  distributed.  The  distributions  generally
consist of dividends and interest received, as well as capital gains realized on
the sale of investment  securities.  Each fund generally pays distributions from
net income and capital  gains,  if any,  once a year in December.  They may make
more frequent  distributions  if necessary to comply with Internal  Revenue Code
provisions.

You will participate in fund distributions,  when they are declared, starting on
the day after your purchase is effective. For example, if you purchase shares on
a day that a distribution is declared,  you will not receive that  distribution.
If you redeem shares, you will receive any distribution  declared on the day you
redeem.  If you redeem all shares,  we will include any  distributions  received
with your redemption proceeds.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.  For shareholders  investing  through taxable  accounts,  we will
reinvest distributions unless you elect to receive them in cash.

CALLOUTS

The net asset value of a fund is the price of the fund's shares.

Capital gains are increases in the values of capital assets, such as stock, from
the time the assets are  purchased.  Tax  becomes  due on capital  gains once an
asset is sold.





Taxes

The tax  consequences  of  owning  shares of the funds  will vary  depending  on
whether you own them through a taxable or tax-deferred account. Tax consequences
result from distributions by the funds of dividend and interest income they have
received  or  capital  gains  they  have  generated   through  their  investment
activities.  Tax consequences also result from sales of fund shares by investors
after the net asset value has increased or decreased.

Tax-Deferred Accounts

If you purchase fund shares through a tax-deferred  account, such as an IRA or a
qualified  employer-sponsored  retirement  or savings  plan,  income and capital
gains  distributions  usually will not be subject to current taxation,  but will
accumulate in your account  under the plan on a  tax-deferred  basis.  Likewise,
moving  from one fund to  another  fund  within a plan or  tax-deferred  account
generally  will  not  cause  you to be  taxed.  For  information  about  the tax
consequences of making  purchases or withdrawals  through an  employer-sponsored
retirement  or  savings  plan,  or  through  an IRA,  please  consult  your plan
administrator, your summary plan description or a professional tax advisor.

Taxable Accounts

If you own fund shares through a taxable account,  distributions by the fund and
sales by you of fund shares may cause you to be taxed.

Taxability of Distributions

Fund distributions may consist of income earned by the fund from sources such as
dividends  and  interest,  or  capital  gains  generated  from  the sale of fund
investments. Distributions of income are taxed as ordinary income. Distributions
of capital gains are classified  either as short term or long term and are taxed
as follows:


<TABLE>
Type of Distribution                       Tax Rate for 15% Bracket                 Tax Rate for 28% Bracket or above
- ------------------------------------------ ---------------------------------------- -----------------------------------------
<S>                                        <C>                                      <C>
Short-term capital gains                   Ordinary income rate                     Ordinary income rate
Long-term capital gains                    10%                                      20%
</TABLE>

The tax status of any  distributions  of capital gains is determined by how long
the fund held the  underlying  security that was sold,  not by how long you have
been  invested  in the  fund or  whether  you  reinvest  your  distributions  in
additional  shares or take them in cash.  American Century will send you the tax
status of fund  distributions  for each  calendar  year in an annual tax mailing
(Form 1099-DIV) from the fund.

Distributions  also may be subject to state and local taxes.  Because everyone's
tax situation is unique,  always  consult your tax  professional  about federal,
state and local tax consequences.

Taxes on Transactions

Your  redemptions -- including  exchanges to other American Century funds -- are
subject to capital  gains tax.  The table above can provide a general  guide for
your potential tax liability when selling or exchanging fund shares.  Short-term
capital gains are gains on fund shares you held for 12 months or less. Long-term
capital gains are gains on fund shares you held for more than 12 months. If your
shares  decrease in value,  their sale or exchange will result in a long-term or
short-term  capital loss.  However,  you should note that any loss realized upon
the sale or  redemption of shares held for six months or less will be treated as
a long-term  capital loss to the extent of any distribution of long-term capital
gains  to you  with  respect  to  such  shares.  If a loss  is  realized  on the
redemption of fund shares,  the reinvestment in additional fund shares within 30
days before or after the redemption may be subject to the wash sale rules of the
Internal  Revenue Code.  This may result in a postponement of the recognition of
such loss for federal income tax purposes.  If you have not certified to us that
your Social Security number or tax identification number is correct and that you
are not subject to 31% withholding, we are required to withhold and remit 31% of
dividends, capital gains distributions and redemptions to the IRS.


CALLOUT

Buying a Dividend
Purchasing  fund shares in a taxable  account  shortly before a distribution  is
sometimes known as buying a dividend.  In taxable accounts,  you must pay income
taxes on the  distribution  whether you reinvest the  distribution or take it in
cash. In addition,  you will have to pay taxes on the  distribution  whether the
value of your  investment  decreased,  increased  or remained the same after you
bought the fund shares.

The risk in buying a dividend  is that a fund's  portfolio  may build up taxable
gains throughout the period covered by a distribution, as securities are sold at
a profit. We distribute those gains to you, after  subtracting any losses,  even
if you did not own the shares when the gains occurred.

If you buy a  dividend,  you incur the full tax  liability  of the  distribution
period,  but you may not enjoy the full  benefit  of the gains  realized  in the
fund's portfolio.






Multiple Class Information

American   Century   offers  three  classes  of  the  funds:   Investor   Class,
Institutional Class and Advisor Class. The shares offered by this Prospectus are
Institutional Class shares and are offered primarily to institutional  investors
through  institutional   distribution   channels,   such  as  employer-sponsored
retirement plans, or through banks, broker-dealers and insurance companies.

The Investor Class,  which has no up-front or deferred  charges,  commissions or
12b-1 fees,  is offered  primarily to retail  investors.  The other classes have
different  fees,  expenses  and/or  minimum  investment  requirements  than  the
Institutional Class. The difference in the fee structures between the classes is
the result of their  separate  arrangements  for  shareholder  and  distribution
services and not the result of any difference in amounts  charged by the advisor
for core investment advisory services. Accordingly, the core investment advisory
expenses  do not  vary  by  class.  Different  fees  and  expenses  will  affect
performance.  For additional  information concerning the other classes of shares
not offered by this Prospectus, call us at

*   1-800-345-2021 for Investor Class shares

*   1-800-345-3533 for Advisor Class shares

You also can contact a sales representative or financial intermediary who offers
those classes of shares.

Except as  described  below,  all classes of shares of the funds have  identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions.  The only differences  between the classes are (a) each class may be
subject to  different  expenses  specific  to that  class;  (b) each class has a
different  identifying  designation or name; (c) each class has exclusive voting
rights with respect to matters solely  affecting such class;  (d) each class may
have different exchange privileges;  and (e) the Institutional Class may provide
for automatic  conversion  from that class into shares of the Investor  Class of
the same fund.








More information about the funds is contained in these documents

Annual and Semiannual Reports.  These reports contain more information about the
funds'  investments  and the market  conditions and investment  strategies  that
significantly  affected  the funds'  performance  during the most recent  fiscal
period.

Statement of Additional  Information.  The SAI contains a more  detailed,  legal
description  of the funds'  operations,  investment  restrictions,  policies and
practices. The SAI is incorporated by reference into this Prospectus. This means
that it is legally part of this Prospectus, even if you don't request a copy.

You may obtain a free copy of the SAI or annual and semiannual reports,  and ask
questions about the funds or your accounts,  by contacting  American  Century at
the address or telephone numbers listed below.

You also can get  information  about  the  funds  (including  the SAI)  from the
Securities and Exchange Commission (SEC).

In person                  SEC Public Reference Room
                           Washington, D.C.
                           Call 1-800-SEC-0330 for location and hours.

On the internet            WWW.SEC.GOV.

By mail                    SEC Public Reference Section
                           Washington, D.C. 20549-6009
                           (The SEC will charge a fee for copying the
                            documents.)


Investment Company Act File No. 811-0816


                          American Century Investments
                                 P.O. Box 419385
                        Kansas City, Missouri 64141-6385

                         1-800-345-3533 or 816-531-5575


9910
SH-PRS-xxxxx
<PAGE>
American Century
Prospectus

                                                                         AC Fund
                                                               AC Large-Cap Fund
                                                                   ADVISOR CLASS
                                                               NOVEMBER 14, 1999

THE  SECURITIES AND EXCHANGE  COMMISSION  HAS NOT APPROVED OR DISAPPROVED  THESE
SECURITIES OR DETERMINED IF THIS PROSPECTUS IS ACCURATE OR COMPLETE.  ANYONE WHO
TELLS YOU OTHERWISE IS COMMITTING A CRIME.


                                          DISTRIBUTED BY FUNDS DISTRIBUTOR, INC.

THE  SECURITIES AND EXCHANGE  COMMISSION  HAS NOT APPROVED OR DISAPPROVED  THESE
SECURITIES OR DETERMINED IF THIS PROSPECTUS IS ACCURATE OR COMPLETE.  ANYONE WHO
TELLS YOU OTHERWISE IS COMMITTING A CRIME.


                                                                  DISTRIBUTED BY
                                                         FUNDS DISTRIBUTOR, INC.









Dear Investor,

   Reading a prospectus  doesn't have to be a chore. We've done the hard work so
you can focus on what's  important--learning  about the funds and tracking  your
investments. Take a look inside, and you'll see this prospectus is different. It
takes a clear-cut approach to fund information.

   Here's what you'll find:

   o  The funds' primary investments and risks

   o  A description of who may or may not want to invest in the funds

   o  An overview of services available and ways to manage your accounts

   o  Helpful tips and definitions of key investment terms

   Whether you're a current  investor or investing in mutual funds for the first
time, this prospectus will give you a clear  understanding  of the funds. If you
have questions,  our Service  Representatives are available weekdays 8 a.m. to 5
p.m.  Central time. Our toll-free number is  1-800-345-3533.  We look forward to
helping you achieve your financial goals.

      Sincerely,





      Mark Killen
      Senior Vice President
      American Century Investment Services, Inc.






Table of Contents


An Overview of the Funds....................................................2

Fund Performance History....................................................3

Fees and Expenses...........................................................4

Information about the Funds
AC Fund
AC Large-Cap Fund...........................................................5


Management..................................................................7

Investing with American Century............................................XX

Share Price and Distributions..............................................XX

Taxes......................................................................XX

Multiple Class Information.................................................XX




CALLOUT

Throughout  this  book  you'll  find  definitions  of key  investment  terms and
phrases.  When you see a word printed in green italics,  look for its definition
in the left margin.

This symbol highlights special information and helpful tips.







An Overview of the Funds


What are the funds' investment objectives?

These funds seek long-term capital growth.

What are the funds' primary investment strategies and principal risks?

The funds use a systematic, highly-automated approach to common stock investing.
This approach is designed to identify companies that are growing and whose share
price  patterns  suggest  their  stocks are likely to increase in value.  A more
detailed description of the funds' investment style begins on page __.

The funds' principal risks include

o   High Turnover - The  funds'portfolio  turnover may be very high.  This could
    result in relatively high commission costs and capital gains tax liabilities
    for the funds and their shareholders, which may hurt the funds' performance.

o   Market Risk - The value of a fund's  shares will go up and down based on the
    performance  of the  companies  whose  securities  it owns and other factors
    affecting the securities market generally.

o   Price   Volatility  -  The  value  of  the  funds'   shares  may   fluctuate
    significantly in the short term.

o   Principal  Loss - As with all mutual  funds,  if you sell your  shares  when
    their value is less than the price you paid, you will lose money.

o   Nondiversification  - From time to time,  the funds  may  pursue  investment
    opportunities  that cause them to become  temporarily  nondiversified.  In a
    nondiversified  fund, a price change in a single security may have a greater
    impact on the fund's  share  price  than would be the case in a  diversified
    fund.

Who may want to invest in the funds?

The funds may be a good investment if you are

o   seeking long-term capital growth from your investment

o   comfortable with the funds' short-term price volatility

o   comfortable with the risks associated with the funds' investment strategy

o   investing through an IRA or other tax-advantaged retirement plan


Who may not want to invest in the funds?

The funds may not be a good investment if you are

o   seeking current income from your investment

o   investing for a short period of time

o   uncomfortable with short-term volatility in the value of your investment

CALLOUT

Portfolio  turnover  is a  measure  of how  frequently  a fund  buys  and  sells
portfolio securities.

CALLOUT

A  nondiversified  fund may  invest a  greater  percentage  of its  assets  in a
particular portfolio security than may a diversified fund.

CALLOUT

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


Fund Performance History

As new funds, the funds' performance  history is not available as of the date of
this Prospectus.

CALLOUT

For current performance  information,  please call us at 1-800-345-3533 or visit
American Century's Web site at www.americancentury.com.






Fees and Expenses

There are no sales loads, fees or other charges

o to buy fund shares directly from American Century

o to reinvest dividends in additional shares

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



Shareholder Transaction Expenses (fees paid directly from your investment)

                                      Redemption/Exchange Fee(as a percentage
                                          of amount redeemed/exchanged)
Shares held for less than five years (1)             2.0%
Shares held for five years or more                   None

1   The fee withheld from redemption/exchange proceeds is retained by the fund.

Annual Operating Expenses (expenses that are deducted from fund assets)

<TABLE>
                  Management   Distribution and      Other           Total Annual Fund
                  Fee          Service (12b-1) Fees  Expenses(1)     Operating Expenses
<S>               <C>          <C>                   <C>             <C>
AC Fund           1.25%        0.50%                 0.00%           1.75%
AC Large-Cap      1.10%        0.50%                 0.00%           1.60%
</TABLE>

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

Example
The examples in the table below are intended to help you compare the costs of
investing in a fund with the costs of investing in other mutual funds. Assuming
you ...

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

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

                  1 year            3 years
AC Fund            $383              $767
AC Large-Cap       $369              $723


You would pay the following expenses if you did not redeem your shares:

                  1 year            3 years
AC Fund            $177              $548
AC Large-Cap       $162              $502


CALLOUT

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







Information about the Funds


AC Fund
AC Large-Cap Fund

What are the funds' investment objectives?

These funds seek long-term capital growth.

How do the funds pursue their investment objectives?

The funds use a systematic,  highly-automated approach to common stock investing
developed by American  Century.  This approach  relies  heavily on  quantitative
tools  to  identify  attractive  investment   opportunities  on  a  disciplined,
consistent  basis.  It  utilizes a  fundamental  screening  process to  identify
attractive  companies and a technical signal generator to determine  optimum buy
and sell points based on a stock's historical price trends.

The quantitative tools used to identify attractive  companies do so by screening
thousands of publicly traded securities to identify those that are growing.  The
methodology  identifies  companies  whose earnings and revenues are growing at a
successively faster, or accelerating, pace.

A second portion of the methodology  attempts to identify  companies whose share
price  patterns  suggest  that they are  likely to either  rise or fall in price
(commonly  referred to as  technical  analysis).  This  process is  particularly
oriented to identifying  attractive  price patterns for companies  demonstrating
the accelerating growth described above. These would be candidates for purchase.
Conversely,  companies  whose share price  patterns  suggest  they are likely to
decline  in price  would be  candidates  for  sale,  if  owned by the  fund.  On
occasion,  the process may look  favorably on share price  patterns  that appear
attractive even though the earnings of the underlying company are not growing at
an accelerating rate.

Although the funds are expected to invest primarily in U.S. companies,  there is
no limit on the  amount of assets  the funds can  invest in  foreign  companies.
Investments in foreign  securities present some unique risks that are more fully
described in the funds' Statement of Additional Information.

The fund  managers do not attempt to time the  market.  Instead,  they intend to
keep the funds  essentially  fully invested in stocks regardless of the movement
of stock prices generally.  However, in the fund managers' discretion, the funds
may  invest up to 100% of their  assets  in U.S.  government  securities  if the
funds' investment  methodology fails to generate sufficient  investment ideas or
to respond to adverse market, economic, political or other conditions. The funds
may not  achieve  their  investment  objectives  while  taking  such a temporary
defensive position. When the managers believe that it is prudent, the funds also
may  invest a portion  of their  assets in  convertible  securities,  short-term
instruments, and non-leveraged futures and options. Futures and options can help
the funds' cash assets  remain  liquid while  performing  more like stocks.  The
funds  have a policy  governing  futures  and  options  and  similar  derivative
securities  to help  manage the risk of these types of  investments.  A complete
description of the derivatives policy is included in the Statement of Additional
Information.

CALLOUT

Accelerating growth is shown, for example, by growth that is faster this quarter
than last or faster this year than the year before.

CALLOUT

Non-leveraged  means that the fund may not invest in futures  contracts where it
would be possible to lose more than the fund invested.



What kinds of securities do the funds buy?

The funds will usually purchase common stocks of U.S. and foreign companies, but
they can  purchase  other types of  securities  as well,  such as  domestic  and
foreign preferred stocks, convertible securities,  equity equivalent securities,
notes,  bonds and other debt securities.  The funds limit their purchase of debt
securities to investment-grade obligations.

What are the differences between the funds?

AC Large-Cap generally invests in larger companies.  Companies  considered to be
large generally have a market  capitalization in excess of $5 billion.  AC Fund,
by contrast, may invest in companies of any size.

What are the primary risks of investing in the funds?

The process  driving the funds is  specifically  designed to respond  quickly to
changing stock market conditions. As a result, the funds' portfolio turnover may
be  significantly  higher than that of many other  funds.  This heavy  turnover,
perhaps as much as 200-300% per year or more,  could result in  relatively  high
commission  costs,  substantial  capital gain  realizations  for the funds,  and
capital gains tax liabilities for the funds' shareholders.

The  value of a fund's  shares  depends  on the  value of the  stocks  and other
securities it owns. The value of the  individual  securities a 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.

The fund managers may buy a large amount of a company's stock quickly, and often
will dispose of it quickly if the company's earnings or revenues decline.  While
the managers believe this strategy provides substantial  appreciation  potential
over the long  term,  in the short term it can  create a  significant  amount of
share price volatility.  This volatility can be greater than that of the average
stock fund.

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

Market  performance  tends to be cyclical,  and in the various  cycles,  certain
investment  styles may fall in and out of favor.  If the market is not  favoring
the funds' style,  the funds' gains may not be as big as, or their losses may be
bigger than, other equity funds using different investment styles.

Although the fund managers intend to invest the funds' assets  primarily in U.S.
stocks, the funds may invest in securities of foreign companies. To the extent a
fund  invests  in  foreign  securities,  the  overall  risk of the fund could be
affected.   Foreign   securities  can  have  certain  unique  risks,   including
fluctuations  in currency  exchange  rates,  less stable  political and economic
structures,  reduced  availability  of public  information,  and lack of uniform
financial reporting and regulatory  practices similar to those that apply in the
United  States.  These factors make  investing in foreign  securities  generally
riskier than investing in U.S. stocks.


CALLOUT

Market capitalization is the value of a company as determined by multiplying the
number of shares of its stock outstanding by its current market price per share.









Management


Who manages the funds?

The Board of Directors,  investment  advisor and fund  management  team play key
roles in the management of the funds.

The Board of Directors

The Board of Directors  oversees the  management of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Directors  does not manage the funds,  it has hired an investment  advisor to do
so. More than two-thirds of the directors are independent of the funds' advisor;
that is, they are not employed by and have no financial interest in the advisor.

The Investment Advisor

The funds' investment  advisor is American Century Investment  Management,  Inc.
The advisor has been  managing  mutual  funds  since 1958.  American  Century is
headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible  for managing the investment  portfolios of the funds
and directing the purchase and sale of their investment securities.  The advisor
also arranges for transfer agency,  custody and all other services necessary for
the funds to operate.

For the  services  it  provides  to the funds,  the  advisor  receives a unified
management fee of 1.25% of the average net assets of the Advisor Class shares of
AC Fund and 1.10% of the average net assets of the  Advisor  Class  shares of AC
Large-Cap.  The amount of the management  fee is calculated on a  class-by-class
basis daily and paid monthly.

The Statement of Additional  Information contains detailed information about the
calculation  of the  management  fee.  Out of that  fee,  the  advisor  pays all
expenses of managing and operating the funds except brokerage  expenses,  taxes,
interest,  fees and  expenses  of the  independent  directors  (including  legal
counsel fees), and extraordinary  expenses.  A portion of the management fee may
be  paid by the  funds'  advisor  to  unaffiliated  third  parties  who  provide
recordkeeping and  administrative  services that would otherwise be performed by
an affiliate of the advisor.

The Fund Management Teams

The advisor uses teams of portfolio  managers,  assistant portfolio managers and
analysts to manage the funds.  Teams meet regularly to review portfolio holdings
and to discuss purchase and sale activity.  Team members buy and sell securities
for a fund as they  see fit,  guided  by the  fund's  investment  objective  and
strategy.

The portfolio managers on the investment teams are identified below:

James E. Stowers III
Mr. Stowers, Chief Executive Officer and Portfolio Manager, has been a member of
the team that manages the funds since their  inception in November 1999. He also
is the Chief  Investment  Officer-U.S.  Growth Equities and as such oversees the
investment  discipline used by the funds and seven other growth funds. He joined
American  Century in 1981.  He has a  bachelor's  degree in finance from Arizona
State University.

John Small Jr.
Mr.  Small,  Portfolio  Manager,  has been a member of the team that manages the
funds since their  inception  in November  1999.  He was  promoted to  Portfolio
Manager in February  1999.  Since 1994 he has worked as an analyst and Portfolio
Manager for the Ultra fund. He joined American  Century in May 1991. He has more
than 20 years  experience  with the U.S. Air Force.  He has a bachelor's  degree
from Rockford College and a master's degree in laser optics physics from the Air
Force Institute of Technology. He also has an MBA from Baker University.

CALLOUT

Code of Ethics
American  Century has a Code of Ethics  designed to ensure that the interests of
fund  shareholders come before the interests of the people who manage the funds.
Among other  provisions,  the Code of Ethics  prohibits  portfolio  managers and
other investment  personnel from buying securities in an initial public offering
or from  profiting  from the  purchase and sale of the same  security  within 60
calendar days. In addition,  the Code of Ethics requires  portfolio managers and
other  employees  with  access  to  information  about the  purchase  or sale of
securities by the funds to obtain approval before executing  permitted  personal
trades.









Fundamental Investment Policies

Fundamental  investment  policies  contained  in  the  Statement  of  Additional
Information  and the  investment  objectives  of the  funds  may not be  changed
without a shareholder vote. The Board of Directors may change any other policies
and investment strategies.


Year 2000 Issues

Many of the world's  computer  systems were originally  programmed in a way that
prevented   them  from  properly   recognizing   or  processing   date-sensitive
information  relating to the Year 2000 and beyond.  Because  this may impact the
computer  systems of various  American  Century-affiliated  and external service
providers  for the  funds,  American  Century  formally  initiated  a Year  2000
readiness  project in July 1997.  It involves a team of  information  technology
professionals  assisted  by outside  consultants  and  guided by a  senior-level
steering committee.  The team's goal is to assess the impact of the Year 2000 on
American Century's systems,  renovate or replace  noncompliant  critical systems
and test  those  systems.  In  addition,  the team has been  working  to  gather
information  about the Year 2000  efforts  of the  funds'  other  major  service
providers.

Although  American Century believes its critical systems will function  properly
in the Year 2000, this is not guaranteed.  If the efforts of American Century or
its  external  service  providers  are  not  successful,  the  funds'  business,
particularly the provision of shareholder services, may be hampered.

In  addition,  the  issuers  of  securities  the funds own could  have Year 2000
computer problems. Foreign issuers, especially those in emerging markets, may be
more  susceptible  to such  problems than U.S.  issuers.  These  problems  could
negatively  affect the value of the issuers'  securities,  which, in turn, could
impact the funds'  performance.  The advisor has established a process to gather
publicly  available  information about the Year 2000 readiness of these issuers.
However,  this  process  may  not  uncover  all  relevant  information,  and the
information  gathered may not be complete and  accurate.  Moreover,  an issuer's
Year 2000  readiness is only one of many factors the fund  managers may consider
when making investment decisions, and other factors may receive greater weight.





Investing With American Century


Eligibility for Advisor Class Shares

The  Advisor  Class  shares  are  intended  for  purchase  by   participants  in
employer-sponsored retirement or savings plans and for persons purchasing shares
through   broker-dealers,   banks,   insurance  companies  and  other  financial
intermediaries that provide various administrative and distribution services.

Investing through Financial Intermediaries

If you do business  with us through a  financial  intermediary  or a  retirement
plan,  your ability to purchase,  exchange and redeem  shares will depend on the
policies of that entity. Some policy differences may include

*   minimum investment requirements

*   exchange policies

*   fund choices

*   cutoff time for investments

Please  contact  your  financial  intermediary  or plan  sponsor  for a complete
description of its policies.

Certain  financial   intermediaries  perform  recordkeeping  and  administrative
services  for their  clients  that would  otherwise  be  performed  by  American
Century's transfer agent. In some  circumstances,  American Century will pay the
service provider a fee for performing those services.

Although  transactions in fund shares may be made directly with American Century
at no charge,  you also may purchase,  redeem and exchange  fund shares  through
financial  intermediaries that charge a transaction-based or other fee for their
services. Those charges are retained by the intermediary and are not shared with
American Century or the funds.

American Century has contracts with certain financial  intermediaries  requiring
them to track  the time  investment  orders  are  received  and to  comply  with
procedures  relating to the  transmission  of orders.  The funds have authorized
those  intermediaries  to accept  orders on each fund's behalf up to the time at
which the net asset value is  determined.  If those  orders are  transmitted  to
American  Century and paid for in  accordance  with the  contract,  they will be
priced at the net asset value next determined  after your request is received in
the form required by the intermediary on a fund's behalf.

CALLOUT

Financial intermediaries include banks, broker-dealers,  insurance companies and
investment advisors.


Abusive Trading Practices

We do not permit market timing or other abusive trading  practices in our funds.

Excessive,  short-term  (market timing) or other abusive  trading  practices may
disrupt portfolio management  strategies and harm fund performance.  To minimize
harm to the funds and their  shareholders,  we  reserve  the right to reject any
purchase order (including  exchanges) from any investor we believe has a history
of  abusive  trading  or  whose  trading,  in our  judgment,  has been or may be
disruptive to a fund. In making this judgment,  we may consider  trading done in
multiple  accounts under common ownership or control.  We also reserve the right
to delay  delivery of your  redemption  proceeds--up  to seven days--or to honor
certain redemptions with securities,  rather than cash, as described in the next
section.

Special Requirements for Large Redemptions

If,  during any 90-day  period,  you redeem fund shares worth more than $250,000
(or 1% of the assets of the fund if that percentage is less than  $250,000),  we
reserve  the right to pay part or all of the  redemption  proceeds  in excess of
this amount in readily marketable securities instead of cash. If we make payment
in securities,  we will value the securities  selected by the fund managers,  in
the same manner as we do in computing the fund's net asset value. We may provide
these securities in lieu of cash without prior notice.

If your  redemption  would  exceed  this limit and you would like to avoid being
paid in  securities,  please  provide us with an  unconditional  instruction  to
redeem at least 15 days prior to the date on which the redemption transaction is
to occur.  The instruction must specify the dollar amount or number of shares to
be redeemed and the date of the  transaction.  This  minimizes the effect of the
redemption on the fund and its remaining shareholders.







Share Price and Distributions


Share Price

American  Century  determines  the net asset  value (NAV) of the funds as of the
close of regular trading on the New York Stock Exchange  (usually 4 p.m. Eastern
time) on each day the  Exchange is open.  On days when the  Exchange is not open
(including  certain U.S.  holidays),  we do not  calculate the NAV. The NAV of a
fund share is the current  value of the fund's  assets,  minus any  liabilities,
divided by the number of fund shares outstanding.

If  current  market  prices  of  securities  owned  by a fund  are  not  readily
available,  the  advisor  may  determine  their  fair value in  accordance  with
procedures adopted by the fund's Board. Trading of securities in foreign markets
may not take place every day the Exchange is open. Also, trading in some foreign
markets  may take  place  on  weekends  or  holidays  when a  fund's  NAV is not
calculated. So, the value of a fund's portfolio may be affected on days when you
can't purchase or redeem shares of the fund.

We will price your purchase,  exchange or redemption at the NAV next  determined
after we receive your transaction request in good order.

Distributions

Federal tax laws require each fund to make  distributions to its shareholders in
order  to  qualify  as a  "regulated  investment  company."  Qualification  as a
regulated  investment  company means that the funds will not be subject to state
or federal  income  tax on  amounts  distributed.  The  distributions  generally
consist of dividends and interest received, as well as capital gains realized on
the sale of investment  securities.  Each fund generally pays distributions from
net income and capital  gains,  if any,  once a year in December.  They may make
more frequent  distributions  if necessary to comply with Internal  Revenue Code
provisions.

You will participate in fund distributions,  when they are declared, starting on
the day after your purchase is effective. For example, if you purchase shares on
a day that a distribution is declared,  you will not receive that  distribution.
If you redeem shares, you will receive any distribution  declared on the day you
redeem.  If you redeem all shares,  we will include any  distributions  received
with your redemption proceeds.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.  For shareholders  investing  through taxable  accounts,  we will
reinvest distributions unless you elect to receive them in cash.

CALLOUTS

The net asset value of a fund is the price of the fund's shares.

Capital gains are increases in the values of capital assets, such as stock, from
the time the assets are  purchased.  Tax  becomes  due on capital  gains once an
asset is sold.





Taxes

The tax  consequences  of  owning  shares of the funds  will vary  depending  on
whether you own them through a taxable or tax-deferred account. Tax consequences
result from distributions by the funds of dividend and interest income they have
received  or  capital  gains  they  have  generated   through  their  investment
activities.  Tax consequences also result from sales of fund shares by investors
after the net asset value has increased or decreased.

Tax-Deferred Accounts

If you purchase fund shares through a tax-deferred  account, such as an IRA or a
qualified  employer-sponsored  retirement  or savings  plan,  income and capital
gains  distributions  usually will not be subject to current taxation,  but will
accumulate in your account  under the plan on a  tax-deferred  basis.  Likewise,
moving  from one fund to  another  fund  within a plan or  tax-deferred  account
generally  will  not  cause  you to be  taxed.  For  information  about  the tax
consequences of making  purchases or withdrawals  through an  employer-sponsored
retirement  or  savings  plan,  or  through  an IRA,  please  consult  your plan
administrator, your summary plan description or a professional tax advisor.


Taxable Accounts

If you own fund shares through a taxable account,  distributions by the fund and
sales by you of fund shares may cause you to be taxed.

Taxability of Distributions

Fund distributions may consist of income earned by the fund from sources such as
dividends  and  interest,  or  capital  gains  generated  from  the sale of fund
investments. Distributions of income are taxed as ordinary income. Distributions
of capital gains are classified  either as short term or long term and are taxed
as follows:


<TABLE>
Type of Distribution                       Tax Rate for 15% Bracket                 Tax Rate for 28% Bracket or above
- ------------------------------------------ ---------------------------------------- -----------------------------------------
<S>                                        <C>                                      <C>
Short-term capital gains                   Ordinary income rate                     Ordinary income rate
Long-term capital gains                    10%                                      20%
</TABLE>

The tax status of any  distributions  of capital gains is determined by how long
the fund held the  underlying  security that was sold,  not by how long you have
been  invested  in the  fund or  whether  you  reinvest  your  distributions  in
additional  shares or take them in cash.  American Century will send you the tax
status of fund  distributions  for each  calendar  year in an annual tax mailing
(Form 1099-DIV) from the fund.

Distributions  also may be subject to state and local taxes.  Because everyone's
tax situation is unique,  always  consult your tax  professional  about federal,
state and local tax consequences.

Taxes on Transactions

Your  redemptions -- including  exchanges to other American Century funds -- are
subject to capital  gains tax.  The table above can provide a general  guide for
your potential tax liability when selling or exchanging fund shares.  Short-term
capital gains are gains on fund shares you held for 12 months or less. Long-term
capital gains are gains on fund shares you held for more than 12 months. If your
shares  decrease in value,  their sale or exchange will result in a long-term or
short-term  capital loss.  However,  you should note that any loss realized upon
the sale or  redemption of shares held for six months or less will be treated as
a long-term  capital loss to the extent of any distribution of long-term capital
gains  to you  with  respect  to  such  shares.  If a loss  is  realized  on the
redemption of fund shares,  the reinvestment in additional fund shares within 30
days before or after the redemption may be subject to the wash sale rules of the
Internal  Revenue Code.  This may result in a postponement of the recognition of
such loss for federal income tax purposes.  If you have not certified to us that
your Social Security number or tax identification number is correct and that you
are not subject to 31% withholding, we are required to withhold and remit 31% of
dividends, capital gains distributions and redemptions to the IRS.



CALLOUT

Buying a Dividend

Purchasing  fund shares in a taxable  account  shortly before a distribution  is
sometimes known as buying a dividend.  In taxable accounts,  you must pay income
taxes on the  distribution  whether you reinvest the  distribution or take it in
cash. In addition,  you will have to pay taxes on the  distribution  whether the
value of your  investment  decreased,  increased  or remained the same after you
bought the fund shares.

The risk in buying a dividend  is that a fund's  portfolio  may build up taxable
gains throughout the period covered by a distribution, as securities are sold at
a profit. We distribute those gains to you, after  subtracting any losses,  even
if you did not own the shares when the gains occurred.

If you buy a  dividend,  you incur the full tax  liability  of the  distribution
period,  but you may not enjoy the full  benefit  of the gains  realized  in the
fund's portfolio.






Multiple Class Information

American   Century   offers  three  classes  of  the  funds:   Investor   Class,
Institutional Class and Advisor Class. The shares offered by this Prospectus are
Advisor  Class  shares and are  offered  primarily  to  institutional  investors
through  institutional   distribution   channels,   such  as  employer-sponsored
retirement plans, or through banks,  broker-dealers and insurance companies.

The Investor Class,  which has no up-front or deferred  charges,  commissions or
12b-1 fees,  is offered  primarily to retail  investors.  The other classes have
different fees, expenses and/or minimum investment requirements than the Advisor
Class. The difference in the fee structures between the classes is the result of
their separate  arrangements for shareholder and  distribution  services and not
the  result  of any  difference  in  amounts  charged  by the  advisor  for core
investment advisory services. Accordingly, the core investment advisory expenses
do not vary by class.  Different fees and expenses will affect performance.  For
additional  information  concerning  the other  classes of shares not offered by
this Prospectus, call us at

1-800-345-2021 for Investor Class shares

1-800-345-3533 for Institutional Class shares.

You also can contact a sales representative or financial intermediary who offers
those classes of shares.

Except as  described  below,  all classes of shares of the funds have  identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions.  The only differences  between the classes are (a) each class may be
subject to  different  expenses  specific  to that  class;  (b) each class has a
different  identifying  designation or name; (c) each class has exclusive voting
rights with respect to matters solely  affecting such class;  (d) each class may
have different exchange privileges;  and (e) the Institutional Class may provide
for automatic  conversion  from that class into shares of the Investor  Class of
the same fund.

Service and Distribution Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan
to pay out of fund assets certain  expenses  associated with the distribution of
their shares. The funds' Advisor Class shares have a 12b-1 Plan. Under the Plan,
the  fund  pays  an  annual  fee of  0.50%  of fund  assets,  half  for  certain
shareholder and administrative  services and half for distribution services. The
advisor,  as paying  agent for the funds,  pays all or a portion of such fees to
the  banks,  broker-dealers  and  insurance  companies  that  make  such  shares
available.  Because  these fees are paid out of the fund's  assets on an ongoing
basis,  over time these fees will increase the cost of your  investment  and may
cost  you  more  than  paying  other  types of  sales  charges.  For  additional
information about the Plan and its terms, see "Multiple Class Structure - Master
Distribution  and  Shareholder  Services  Plan" in the  Statement of  Additional
Information.







More information about the funds is contained in these documents

Annual and Semiannual Reports.  These reports contain more information about the
funds'  investments  and the market  conditions and investment  strategies  that
significantly  affected  the funds'  performance  during the most recent  fiscal
period.

Statement of Additional  Information.  The SAI contains a more  detailed,  legal
description  of the funds'  operations,  investment  restrictions,  policies and
practices. The SAI is incorporated by reference into this Prospectus. This means
that it is legally part of this Prospectus, even if you don't request a copy.

You may obtain a free copy of the SAI or annual and semiannual reports,  and ask
questions about the funds or your accounts,  by contacting  American  Century at
the address or telephone numbers listed below.

You also can get  information  about  the  funds  (including  the SAI)  from the
Securities and Exchange Commission (SEC).

In person                  SEC Public Reference Room
                           Washington, D.C.
                           Call 1-800-SEC-0330 for location and hours.
On the internet            WWW.SEC.GOV.
By mail                    SEC Public Reference Section
                           Washington, D.C. 20549-6009
                           (The SEC will charge a fee for copying the
                            documents.)


Investment Company Act File No. 811-0816


                          American Century Investments
                                 P.O. Box 419385
                        Kansas City, Missouri 64141-6385

                         1-800-345-3533 or 816-531-5575


9910
SH-PRS-xxxxx
<PAGE>
American Century Mutual Funds, Inc.

Statement of Additional Information

AC Fund
AC Large-Cap Fund

NOVEMBER 14, 1999

   This Statement of Additional Information adds to the discussion in the funds'
Prospectus,  dated November 14, 1999, but is not a prospectus.  The Statement of
Additional  Information  should be read in  conjunction  with the funds' current
Prospectus.  If you would like a copy of a Prospectus,  please contact us at the
address  or  telephone  numbers  listed  on the back  cover  or  visit  American
Century's Web site at www.americancentury.com.

   This Statement of Additional  Information  incorporates by reference  certain
information that appears in the funds' annual and semiannual reports,  which are
delivered to all  shareholders.  You may obtain a free copy of the funds' annual
or semiannual reports by calling 1-800-345-2021.



Distributed by
Funds Distributor, Inc.






                       STATEMENT OF ADDITIONAL INFORMATION
                                NOVEMBER 14, 1999

TABLE OF CONTENTS
The Funds' History ........................................................    2
Fund Investment Guidelines ................................................    2
Detailed Information About the Funds ......................................    7
          Investment Strategies and Risks .................................    7
          Investment Policies .............................................   17
          Portfolio Turnover ..............................................   18
Management ................................................................   19
          The Board of Directors ..........................................   19
          Officers ........................................................   21
Service Providers .........................................................   24
          Investment Advisor ..............................................   24
          Transfer Agent and Administrator ................................   25
          Distributor .....................................................   25
Other Service Providers ...................................................   25
          Custodian Banks
          Independent Auditor
Brokerage Allocation ......................................................   27
Information about Fund Shares .............................................   28
          Multiple Class Structure ........................................   28
          Buying and Selling Fund Shares ..................................   30
          Valuation of a Fund's Securities ................................   30
Taxes .....................................................................   31
          Federal Income Tax
          State Income Tax
How Fund Performance Information Is Calculated ............................   32
Performance Comparisons
Permissible Advertising Information
Multiple Class Performance Advertising







THE FUNDS' HISTORY

   American  Century  Mutual  Funds,  Inc. is a registered  open-end  management
investment  company that was organized in 1957 as a Delaware  corporation  under
the  name  Twentieth  Century  Investors,  Inc.  On July 2,  1990,  the  company
reorganized as a Maryland  corporation,  and in January 1997 it changed its name
to American Century Mutual Funds,  Inc.  Throughout this Statement of Additional
Information we refer to American Century Mutual Funds, Inc. as the corporation.

   Each fund described in this Statement of Additional Information is a separate
series  of the  corporation  and  operates  for many  purposes  as if it were an
independent  company.  Each  fund has its own  investment  objective,  strategy,
management team, assets, tax identification and stock registration numbers.

<TABLE>
                             Investor Class                Advisor Class           Institutional Class
                         Ticker         Inception      Ticker        Inception     Ticker      Inception
Fund                     Symbol         Date           Symbol        Date          Symbol      Date
- ----                     ------         ----           ------        ----          ------      ----
<S>                      <C>            <C>            <C>           <C>           <C>         <C>
AC Fund                  N/A            11/30/1999     N/A           N/A           N/A         N/A
AC Large-Cap             N/A            11/30/1999     N/A           N/A           N/A         N/A
</TABLE>


FUND INVESTMENT GUIDELINES

   This  section  explains  the  extent to which the  funds'  advisor,  American
Century Investment  Management,  Inc., can use various  investment  vehicles and
strategies  in  managing  a  fund's  assets.   Descriptions  of  the  investment
techniques  and risks  associated  with each appear in the section,  "Investment
Strategies  and  Risks,"  which  begins  on page __.  In the case of the  funds'
principal investment  strategies,  these descriptions elaborate upon discussions
contained in the Prospectus.

   Each fund is an  open-end,  management  investment  company as defined in the
Investment  Company Act of 1940 (the  Investment  Company  Act).  Each fund will
normally be  diversified.  Diversified  means that,  with  respect to 75% of its
total assets,  each fund will not invest more than 5% of its total assets in the
securities of a single issuer.  However,  from time to time the funds may pursue
investment opportunities that cause them to become temporarily nondiversified.

   To meet federal tax requirements for qualification as a regulated  investment
company,  each fund  must  limit  its  investments  so that at the close of each
quarter  of its  taxable  year (1) no more  than  25% of its  total  assets  are
invested in the securities of a single issuer (other than the U.S. government or
a regulated  investment  company),  and (2) with  respect to at least 50% of its
total assets, no more than 5% of its total assets are invested in the securities
of a single issuer.

   In  general,  within  the  restrictions  outlined  here  and  in  the  funds'
Prospectus,  the fund  managers  have broad  powers to decide how to invest fund
assets, including the power to hold them uninvested.

   Investments  are  varied  according  to what  is  judged  advantageous  under
changing  economic  conditions.  It is the  advisor's  policy to retain  maximum
flexibility in management without restrictive provisions as to the proportion of
one or another class of securities  that may be held,  subject to the investment
restrictions  described  below.  It is the  advisor's  intention  that each fund
generally  will  consist of  domestic  and  foreign  common  stocks,  and equity
equivalent securities.  However,  subject to the specific limitations applicable
to a fund,  the  funds'  management  teams may invest the assets of each fund in
varying amounts using other instruments and techniques,  such as those described
in the next  section,  when  such a course  is  deemed  appropriate  in order to
attempt to attain a fund's investment objective.  Senior securities that, in the
opinion  of the  managers,  are  high-grade  issues  also may be  purchased  for
defensive purposes.

   So long as a sufficient  number of acceptable  securities are available,  the
managers  intend to keep the  funds  fully  invested  in  stocks  identified  as
attractive by the funds' investment  methodology,  regardless of the movement of
stock prices, generally.  However, should the funds' investment methodology fail
to identify sufficient investment candidates,  or for any other reason including
the desire to take a temporary  defensive  position,  the funds may invest up to
100% of their assets in U.S. government securities.  In most circumstances,  the
funds'  actual  level of cash and cash  equivalents  will be less than 10%.  The
managers may use S&P 500 Index futures as a way to expose the funds' cash assets
to the market, while maintaining liquidity. As mentioned in the Prospectus,  the
managers may not leverage the funds'  portfolios,  so there is no greater market
risk to the funds than if they purchase  stocks.  See  "Derivative  Securities,"
page __, "Short-Term Securities," page __ and "Futures and Options," page __ .




DETAILED INFORMATION ABOUT THE FUNDS
INVESTMENT STRATEGIES AND RISKS

   This section  describes various  investment  vehicles and techniques that the
fund  managers  can use in managing a fund's  assets.  It also details the risks
associated  with each,  because each  technique  contributes to a fund's overall
risk profile.

Foreign Securities

   Each  fund may  invest  an  unlimited  portion  of its  total  assets  in the
securities  of  foreign  issuers,  including  foreign  governments,  when  these
securities  meet its standards of selection.  Securities of foreign  issuers may
trade in the U.S. or foreign securities markets.

   Investments in foreign securities may present certain risks, including:

   Currency Risk. The value of the foreign investments held by the funds may be
significantly  affected by changes in currency  exchange rates. The dollar value
of a foreign  security  generally  decreases  when the value of the dollar rises
against the foreign  currency in which the security is denominated  and tends to
increase when the value of the dollar falls against such currency.  In addition,
the value of fund assets may be affected by losses and other  expenses  incurred
in converting  between various  currencies in order to purchase and sell foreign
securities and by currency restrictions,  exchange control regulation,  currency
devaluations and political developments.

   Political and Economic  Risk. The economies of many of the countries in which
the funds invest are not as  developed  as the economy of the United  States and
may  be  subject  to  significantly   different  forces.   Political  or  social
instability,  expropriation,  nationalization,  or  confiscatory  taxation,  and
limitations on the removal of funds or other assets, also could adversely affect
the value of investments.  Further,  the funds may encounter  difficulties or be
unable to enforce ownership rights, pursue legal remedies or obtain judgments in
foreign courts.

   Regulatory  Risk.  Foreign  companies   generally  are  not  subject  to  the
regulatory  controls  imposed on U.S.  issuers  and, in  general,  there is less
publicly available  information about foreign securities than is available about
domestic  securities.   Many  foreign  companies  are  not  subject  to  uniform
accounting,   auditing  and  financial   reporting   standards,   practices  and
requirements  comparable to those applicable to domestic companies.  Income from
foreign securities owned by the funds may be reduced by a withholding tax at the
sources, which would reduce dividend income payable to shareholders.

   Market and Trading Risk.  Brokerage  commission  rates in foreign  countries,
which  generally are fixed rather than subject to  negotiation  as in the United
States, are likely to be higher. The securities markets in many of the countries
in which the funds invest will have  substantially  less trading volume than the
principal U.S. markets.  As a result,  the securities of some companies in these
countries may be less liquid and more volatile than comparable U.S.  securities.
Furthermore,  one securities  broker may represent all or a significant  part of
the trading  volume in a particular  country,  resulting in higher trading costs
and decreased  liquidity due to a lack of alternative  trading  partners.  There
generally  is less  government  regulation  and  supervision  of  foreign  stock
exchanges,  brokers  and  issuers,  which  may  make  it  difficult  to  enforce
contractual obligations.

   Clearance and Settlement Risk. Foreign securities markets also have different
clearance  and  settlement  procedures,  and in certain  markets there have been
times  when  settlements  have  been  unable  to keep  pace  with the  volume of
securities  transactions,  making it  difficult  to conduct  such  transactions.
Delays in clearance and settlement could result in temporary periods when assets
of the funds are  uninvested and no return is earned  thereon.  The inability of
the funds to make intended  security  purchases due to clearance and  settlement
problems  could  cause the funds to miss  attractive  investment  opportunities.
Inability to dispose of portfolio  securities  due to clearance  and  settlement
problems  could result either in losses to the funds due to subsequent  declines
in the  value of the  portfolio  security  or,  if the fund has  entered  into a
contract to sell the security, liability to the purchaser.

   Ownership  Risk.  Evidence of  securities  ownership may be uncertain in many
foreign countries. In many of these countries,  the most notable of which is the
Russian Federation,  the ultimate evidence of securities  ownership is the share
register held by the issuing company or its registrar.  While some companies may
issue share  certificates  or provide  extracts of the company's share register,
these  are  not  negotiable  instruments  and  are  not  effective  evidence  of
securities  ownership.  In an ownership dispute, the company's share register is
controlling.  As a result,  there is a risk that a fund's trade details could be
incorrectly or  fraudulently  entered on the issuer's share register at the time
of the  transaction,  or that a fund's  ownership  position could  thereafter be
altered or deleted  entirely,  resulting in a loss to the fund.  While the funds
intend to limit their direct investments in Russian companies,  if any, to those
that  utilize an  independent  registrar,  there can be no  assurance  that such
investments will not result in a loss to the funds.

Convertible Debt Securities

   A  convertible  debt  security  is a  fixed-income  security  that offers the
potential for capital appreciation through a conversion feature that enables the
holder to convert the  fixed-income  security  into a stated number of shares of
common stock. As fixed-income securities,  convertible debt securities provide a
stable  stream of income,  with  generally  higher  yields than  common  stocks.
Because  convertible  debt  securities  offer  the  potential  to  benefit  from
increases in the market price of the  underlying  common  stock,  however,  they
generally offer lower yields than non-convertible securities of similar quality.
Of course,  like all fixed-  income  securities,  there can be no  assurance  of
current  income  because  the issuers of the  convertible  debt  securities  may
default on their obligations.  In addition, there can be no assurance of capital
appreciation because the value of the underlying common stock will fluctuate.

   Convertible  debt securities  generally are subordinated to other similar but
non-convertible debt securities of the same issuer,  although convertible bonds,
as corporate debt obligations, enjoy seniority in right of payment to all equity
securities,  and  convertible  preferred  stock is senior to common stock of the
same  issuer.  Because  of  the  subordination  feature,  however,   convertible
securities typically have lower ratings than similar non-convertible securities.

   Unlike  a  convertible  security  that  is a  single  security,  a  synthetic
convertible  security is  comprised  of two distinct  securities  that  together
resemble  convertible  securities  in certain  respects.  Synthetic  convertible
securities are created by combining  non-convertible  bonds or preferred  stocks
with  warrants or stock call  options.  The options  that will form  elements of
synthetic  convertible  securities  will be listed on a  securities  exchange or
NASDAQ. The two components of a synthetic  convertible  security,  which will be
issued with respect to the same entity, generally are not offered as a unit, and
may be purchased and sold by the fund at different times.  Synthetic convertible
securities  differ from convertible  securities in certain  respects,  including
that each component of a synthetic  convertible  security has a separate  market
value and responds  differently to market  fluctuations.  Investing in synthetic
convertible   securities  involves  the  risk  normally  found  in  holding  the
securities comprising the synthetic convertible security.

Short Sales

   A fund may engage in short sales if, at the time of the short sale,  the fund
owns or has the right to acquire securities equivalent in kind and amount to the
securities being sold short.

   In a short sale, the seller does not immediately  deliver the securities sold
and is said to have a short position in those  securities until delivery occurs.
To make delivery to the purchaser,  the executing  broker borrows the securities
being  sold  short  on  behalf  of the  seller.  While  the  short  position  is
maintained,  the seller  collateralizes its obligation to deliver the securities
sold  short in an  amount  equal  to the  proceeds  of the  short  sale  plus an
additional  margin amount  established  by the Board of Governors of the Federal
Reserve.  If a fund  engages in a short sale,  the  collateral  account  will be
maintained by the fund's custodian.  While the short sale is open, the fund will
maintain in a segregated  custodial account an amount of securities  convertible
into, or  exchangeable  for, such equivalent  securities at no additional  cost.
These securities would constitute the fund's long position.

   A fund may make a short sale, as described  above,  when it wants to sell the
security  it owns at a  current  attractive  price,  but  also  wishes  to defer
recognition  of gain or loss for  federal  income  tax  purposes.  There will be
certain  additional  transaction costs associated with short sales, but the fund
will endeavor to offset these costs with income from the  investment of the cash
proceeds of short sales.

Portfolio Lending

   In order  to  realize  additional  income,  a fund  may  lend  its  portfolio
securities.  Such loans may not exceed  one-third  of the  fund's  total  assets
valued  at  market  except  (i)  through  the  purchase  of debt  securities  in
accordance with its investment objectives,  policies and limitations, or (ii) by
engaging in repurchase agreements with respect to portfolio securities.

Derivative Securities

   To the extent  permitted by its investment  objectives and policies,  each of
the funds may invest in securities  that are commonly  referred to as derivative
securities.  Generally,  a derivative is a financial  arrangement,  the value of
which is based on, or derived from, a  traditional  security,  asset,  or market
index.   Certain   derivative   securities  are  described  more  accurately  as
index/structured   securities.   Index/structured   securities   are  derivative
securities whose value or performance is linked to other equity securities (such
as depositary receipts),  currencies, interest rates, indices or other financial
indicators (reference indices).

   Some derivatives, such as mortgage-related and other asset-backed securities,
are in many  respects  like  any  other  investment,  although  they may be more
volatile or less liquid than more traditional debt securities.

   There are many different  types of derivatives and many different ways to use
them. Futures and options are commonly used for traditional  hedging purposes to
attempt to protect a fund from exposure to changing  interest rates,  securities
prices,  or  currency  exchange  rates  and for cash  management  purposes  as a
low-cost method of gaining  exposure to a particular  securities  market without
investing directly in those securities.

   No fund may invest in a derivative security unless the reference index or the
instrument  to which it  relates is an  eligible  investment  for the fund.  For
example,  a security whose  underlying value is linked to the price of oil would
not be a permissible  investment because the funds may not invest in oil and gas
leases or futures.

   The return on a derivative security may increase or decrease,  depending upon
changes in the reference index or instrument to which it relates.

   There is a range of risks associated with derivative investments, including:

   o  the risk that the underlying security, interest rate, market index or
      other financial asset will not move in the direction the fund managers
      anticipate;

   o  the  possibility  that  there may be no liquid  secondary  market,  or the
      possibility that price fluctuation  limits may be imposed by the exchange,
      either  of which  may  make it  difficult  or  impossible  to close  out a
      position when desired;

   o  the risk that adverse  price  movements in an  instrument  can result in a
      loss substantially greater than a fund's initial investment; and

   o  the risk that the counterparty  will fail to perform its  obligations.

   The  Board  of  Directors  has  approved  the  advisor's   policy   regarding
investments in derivative securities. That policy specifies factors that must be
considered in connection  with a purchase of derivative  securities.  The policy
also establishes a committee that must review certain proposed  purchases before
the  purchases  can be  made.  The  advisor  will  report  on fund  activity  in
derivative securities to the Board of Directors as necessary.  In addition,  the
Board  will  review  the  advisor's  policy for  investments  in the  derivative
securities annually.

Investment in Companies with Limited Operating Histories

   The funds may invest up to 10% of their assets in the  securities  of issuers
with limited operating histories. The fund managers consider an issuer to have a
limited  operating  history if that issuer has a record of less than three years
of  continuous  operation.   The  managers  will  consider  periods  of  capital
formation,   incubation,   consolidations,   and  research  and  development  in
determining  whether  a  particular  issuer  has a  record  of  three  years  of
continuous operation.

   Investments  in  securities of issuers with limited  operating  histories may
involve greater risks than investments in securities of more mature issuers.  By
their nature,  such issuers  present limited  operating  histories and financial
information upon which the managers may base their investment decision on behalf
of the funds.  In  addition,  financial  and other  information  regarding  such
issuers, when available, may be incomplete or inaccurate.

Other Investment Companies

   Each of the funds may  invest up to 10% of its total  assets in other  mutual
funds,  including those advised by the advisor,  provided that the investment is
consistent  with the fund's  investment  policies  and  restrictions.  Under the
Investment  Company  Act, a fund's  investment  in such  securities,  subject to
certain exceptions,  currently is limited to (a) 3% of the total voting stock of
any one  investment  company;  (b) 5% of the fund's total assets with respect to
any one  investment  company;  and  (c)  10% of a  fund's  total  assets  in the
aggregate. Such purchases will be made in the open market where no commission or
profit to a sponsor or dealer results from the purchase other than the customary
brokers'  commissions.  As a shareholder of another  investment  company, a fund
would bear,  along with other  shareholders,  its pro rata  portion of the other
investment company's expenses,  including advisory fees. These expenses would be
in addition to the  management  fee that each fund bears  directly in connection
with its own operations.

Repurchase Agreements

   Each fund may invest in repurchase  agreements when such transactions present
an attractive  short-term return on cash that is not otherwise  committed to the
purchase of securities pursuant to the investment policies of that fund.

   A  repurchase  agreement  occurs  when,  at the time the  fund  purchases  an
interest-bearing  obligation,  the seller (a bank or a broker-dealer  registered
under the Securities  Exchange Act of 1934) agrees to purchase it on a specified
date in the future at an agreed-upon  price.  The  repurchase  price reflects an
agreed-upon  interest  rate during the time the fund's  money is invested in the
security.

   Because  the  security  purchased  constitutes  security  for the  repurchase
obligation,  a repurchase  agreement can be considered a loan  collateralized by
the security purchased.  The fund's risk is the ability of the seller to pay the
agreed-upon repurchase price on the repurchase date. If the seller defaults, the
fund may incur costs in  disposing  of the  collateral,  which would  reduce the
amount realized  thereon.  If the seller seeks relief under the bankruptcy laws,
the  disposition of the collateral may be delayed or limited.  To the extent the
value of the security decreases, the fund could experience a loss.

   The funds will limit repurchase  agreement  transactions to securities issued
by the U.S.  government and its agencies and  instrumentalities,  and will enter
into such  transactions  with those banks and securities  dealers who are deemed
creditworthy pursuant to criteria adopted by the funds' Board of Directors.

   No fund will  invest  more than 15% of its  assets in  repurchase  agreements
maturing in more than seven days.

When-Issued and Forward Commitment Agreements

   The funds may sometimes purchase new issues of securities on a when-issued or
forward commitment basis in which the transaction price and yield are each fixed
at the time the  commitment is made,  but payment and delivery occur at a future
date (typically 15 to 45 days later).

   When purchasing  securities on a when-issued or forward  commitment  basis, a
fund assumes the rights and risks of ownership, including the risks of price and
yield  fluctuations.  Market rates of interest on debt securities at the time of
delivery  may be higher or lower than those  contracted  for on the  when-issued
security. Accordingly, the value of such security may decline prior to delivery,
which could result in a loss to the fund.  While the fund will make  commitments
to purchase or sell  securities  with the  intention  of actually  receiving  or
delivering them, it may sell the securities  before the settlement date if doing
so is deemed advisable as a matter of investment strategy.

   In purchasing securities on a when-issued or forward commitment basis, a fund
will  establish  and maintain  until the  settlement  date a segregated  account
consisting of cash, cash equivalents or other  appropriate  liquid securities in
an amount  sufficient to meet the purchase price. When the time comes to pay for
the  when-issued  securities,  a fund will meet its  obligations  with available
cash, through the sale of securities,  or, although it would not normally expect
to do so, by selling the  when-issued  securities  themselves  (which may have a
market  value  greater  or less than the  fund's  payment  obligation).  Selling
securities to meet  when-issued or forward  commitment  obligations may generate
taxable capital gains or losses.

Restricted and Illiquid Securities

   The funds may, from time to time, purchase restricted or illiquid securities,
including  Rule  144A  securities,   when  they  present  attractive  investment
opportunities  that otherwise meet the funds' criteria for selection.  Rule 144A
securities  are  securities  that are  privately  placed  with and traded  among
qualified  institutional investors rather than the general public. Although Rule
144A securities are considered restricted  securities,  they are not necessarily
illiquid.

   With respect to securities  eligible for resale under Rule 144A, the staff of
the  Securities  and Exchange  Commission  (SEC) has taken the position that the
liquidity of such  securities  in the  portfolio of a fund  offering  redeemable
securities is a question of fact for the Board of Directors to  determine,  such
determination to be based upon a consideration of the readily  available trading
markets and the review of any contractual restrictions.  Accordingly,  the Board
of Directors is responsible for developing and  establishing  the guidelines and
procedures for determining the liquidity of Rule 144A securities.  As allowed by
Rule 144A,  the Board of Directors  of the funds has  delegated  the  day-to-day
function  of  determining  the  liquidity  of Rule 144A  securities  to the fund
managers.  The Board retains the responsibility to monitor the implementation of
the guidelines and procedures it has adopted.

   Because  the  secondary  market  for such  securities  is  limited to certain
qualified  institutional  investors,  the  liquidity of such  securities  may be
limited accordingly and a fund may, from time to time, hold a Rule 144A or other
security  that is illiquid.  In such an event,  the fund  managers will consider
appropriate remedies to minimize the effect on such fund's liquidity.

Short-Term Securities

   In order to meet  anticipated  redemptions,  to hold  pending the purchase of
additional  securities for a fund's portfolio,  or, in some cases, for temporary
defensive  purposes,  the funds may  invest a portion  of their  assets in money
market and other short-term securities.

   Examples of those securities include

   o Securities issued or guaranteed by the U.S. government and its agencies and
   instrumentalities

   o Commercial Paper

   o Certificates of Deposit and Euro Dollar Certificates of Deposit

   o Bankers' Acceptances

   o Short-term notes, bonds, debentures or other debt instruments

   o Repurchase agreements

    In addition,  each fund may invest up to 5% of its total assets in any money
market fund, including those advised by the advisor.

Futures and Options

   Each fund may enter  into  futures  contracts,  options or options on futures
contracts.  The funds may not,  however,  enter into a futures  transaction  for
speculative purposes. Generally, futures transactions will be used to:

   o protect against a decline in market value of the fund's securities  (taking
   a short futures position), or

   o protect  against the risk of an increase in market value for  securities in
   which  the fund  generally  invests  at a time  when  the  fund is not  fully
   invested (taking a long futures position), or

   o provide a temporary  substitute for the purchase of an individual  security
   that may not be purchased in an orderly fashion.

   Some futures and options strategies, such as selling futures, buying puts and
writing calls,  hedge a fund's  investments  against price  fluctuations.  Other
strategies,  such as buying  futures,  writing  puts and buying  calls,  tend to
increase market exposure.

   Although other  techniques may be used to control a fund's exposure to market
fluctuations,  the use of futures  contracts  may be a more  effective  means of
hedging this  exposure.  While a fund pays  brokerage  commissions in connection
with opening and closing out futures  positions,  these costs are lower than the
transaction   costs  incurred  in  the  purchase  and  sale  of  the  underlying
securities.

   For example,  the sale of a future by a fund means the fund becomes obligated
to deliver the security  (or  securities,  in the case of an index  future) at a
specified  price on a specified  date.  The  purchase of a future means the fund
becomes  obligated to buy the security (or securities) at a specified price on a
specified date. Futures contracts provide for the sale by one party and purchase
by another  party of a specific  security at a specified  future time and price.
The fund  managers  may  engage in futures  and  options  transactions  based on
securities  indices that are consistent with the fund's  investment  objectives.
Examples of indices  that may be used  include the Bond Buyer Index of Municipal
Bonds  for  fixed-income  funds,  or the S&P 500  Index for  equity  funds.  The
managers also may engage in futures and options  transactions  based on specific
securities,  such as U.S. Treasury bonds or notes.  Futures contracts are traded
on national futures exchanges. Futures exchanges and trading are regulated under
the Commodity Exchange Act by the Commodity Futures Trading Commission (CFTC), a
U.S. government agency.

   Index futures  contracts  differ from traditional  futures  contracts in that
when  delivery  takes place,  no stocks or bonds change  hands.  Instead,  these
contracts  settle in cash at the spot market value of the index.  Although other
types of futures contracts by their terms call for actual delivery or acceptance
of the underlying securities,  in most cases the contracts are closed out before
the  settlement  date.  A futures  position  may be closed by taking an opposite
position in an identical  contract (i.e.,  buying a contract that has previously
been sold or selling a contract that has previously been bought).

   Unlike when the fund  purchases or sells a bond, no price is paid or received
by the fund upon the purchase or sale of the future. Initially, the fund will be
required to deposit an amount of cash or securities equal to a varying specified
percentage of the contract amount.  This amount is known as initial margin.  The
margin  deposit is intended to ensure  completion  of the contract  (delivery or
acceptance  of the  underlying  security) if it is not  terminated  prior to the
specified  delivery  date.  A  margin  deposit  does  not  constitute  a  margin
transaction for purposes of the fund's investment restrictions.  Minimum initial
margin requirements are established by the futures exchanges and may be revised.
In addition,  brokers may establish margin deposit  requirements that are higher
than the exchange  minimums.  Cash held in the margin  account  generally is not
income-producing.  Subsequent payments, called variation margin, to and from the
broker,  will be made on a daily  basis  as the  price  of the  underlying  debt
securities  or index  fluctuates,  making the future  more or less  valuable,  a
process known as marking the contract to market. Changes in variation margin are
recorded  by the fund as  unrealized  gains  or  losses.  At any  time  prior to
expiration of the future,  the fund may elect to close the position by taking an
opposite  position that will operate to terminate its position in the future.  A
final  determination  of  variation  margin  is then  made;  additional  cash is
required to be paid by or  released to the fund and the fund  realizes a loss or
gain.

Risks Related to Futures and Options Transactions

   Futures  and options  prices can be  volatile,  and trading in these  markets
involves  certain risks. If the fund managers apply a hedge at an  inappropriate
time or judge  interest rate or equity market  trends  incorrectly,  futures and
options strategies may lower a fund's return.

   A fund could suffer losses if it is unable to close out its position  because
of an illiquid secondary market.  Futures contracts may be closed out only on an
exchange that provides a secondary market for these  contracts,  and there is no
assurance that a liquid secondary  market will exist for any particular  futures
contract at any particular time. Consequently, it may not be possible to close a
futures position when the fund managers  consider it appropriate or desirable to
do so. In the event of adverse  price  movements,  a fund would be  required  to
continue making daily cash payments to maintain its required margin. If the fund
had insufficient cash, it might have to sell portfolio  securities to meet daily
margin  requirements  at a time when the fund managers would not otherwise elect
to do so. In  addition,  a fund may be required  to deliver or take  delivery of
instruments  underlying  futures contracts it holds. The fund managers will seek
to minimize these risks by limiting the contracts  entered into on behalf of the
funds to those traded on national futures  exchanges and for which there appears
to be a liquid secondary market.

   A fund could suffer losses if the prices of its futures and options positions
were poorly correlated with its other investments,  or if securities  underlying
futures contracts purchased by a fund had different maturities than those of the
portfolio  securities being hedged. Such imperfect  correlation may give rise to
circumstances in which a fund loses money on a futures contract at the same time
that it experiences a decline in the value of its hedged portfolio securities. A
fund also could lose margin payments it has deposited with a margin broker,  if,
for example, the broker became bankrupt.

   Most futures  exchanges limit the amount of fluctuation  permitted in futures
contract  prices during a single  trading day. The daily limit  establishes  the
maximum  amount that the price of a futures  contract may vary either up or down
from the previous day's settlement price at the end of the trading session. Once
the daily limit has been reached in a particular type of contract, no trades may
be made on that day at a price  beyond  the  limit.  However,  the  daily  limit
governs only price movement during a particular trading day and, therefore, does
not limit potential losses. In addition, the daily limit may prevent liquidation
of unfavorable positions. Futures contract prices have occasionally moved to the
daily  limit for  several  consecutive  trading  days with little or no trading,
thereby  preventing prompt  liquidation of futures positions and subjecting some
futures traders to substantial losses.

Options on Futures

   By purchasing an option on a futures contract,  a fund obtains the right, but
not the  obligation,  to sell the futures  contract (a put option) or to buy the
contract (a call  option) at a fixed  strike  price.  A fund can  terminate  its
position in a put option by allowing it to expire or by  exercising  the option.
If the  option  is  exercised,  the fund  completes  the sale of the  underlying
security at the strike price.  Purchasing  an option on a futures  contract does
not require a fund to make margin payments unless the option is exercised.

   Although they do not currently intend to do so, the funds may write (or sell)
call options  that  obligate  them to sell (or deliver) the option's  underlying
instrument  upon  exercise of the option.  While the receipt of option  premiums
would  mitigate  the  effects of price  declines,  the funds  would give up some
ability to participate in a price increase on the underlying security. If a fund
were to engage in options transactions, it would own the futures contract at the
time a call were written and would keep the contract  open until the  obligation
to deliver it pursuant to the call expired.

Restrictions on the Use of Futures Contracts and Options

   Each fund may enter  into  futures  contracts,  options or options on futures
contracts.

   Under the  Commodity  Exchange Act, a fund may enter into futures and options
transactions (a) for hedging purposes without regard to the percentage of assets
committed to initial  margin and option  premiums or (b) for purposes other than
hedging, provided that assets committed to initial margin and option premiums do
not exceed 5% of the fund's total  assets.  To the extent  required by law, each
fund will segregate cash or securities on its records in an amount sufficient to
cover its obligations under the futures contracts and options.

Forward Currency Exchange Contracts

   Each fund may purchase and sell foreign currency on a spot (i.e., cash) basis
and may  engage in forward  currency  contacts,  currency  options  and  futures
transactions   for  hedging  or  any  other  lawful  purpose.   See  "Derivative
Securities," page __.

   The funds expect to use forward contracts under two circumstances:

   (1) When the fund managers wish to lock in the U.S. dollar price of a
       security when a fund is purchasing or selling a security denominated in a
       foreign currency, the fund would be able to enter into a forward contract
       to do so; or

   (2) When the fund managers believe that the currency of a particular  foreign
       country may suffer a substantial  decline against the U.S. dollar, a fund
       would be able to enter into a forward  contract to sell foreign  currency
       for a fixed U.S. dollar amount  approximating the value of some or all of
       its portfolio  securities  either  denominated in, or whose value is tied
       to, such foreign currency.

   In the first  circumstance,  when a fund enters into a trade for the purchase
or sale of a security denominated in a foreign currency,  it may be desirable to
establish (lock in) the U.S.  dollar cost or proceeds.  By entering into forward
contracts  in U.S.  dollars  for the  purchase  or  sale of a  foreign  currency
involved in an underlying security transaction, the fund will be able to protect
itself against a possible loss between trade and settlement dates resulting from
the adverse change in the  relationship  between the U.S. dollar and the subject
foreign currency.

   Under  the  second  circumstance,  when the fund  managers  believe  that the
currency of a particular  country may suffer a substantial  decline  relative to
the U.S.  dollar, a fund could enter into a foreign contract to sell for a fixed
dollar amount the amount in foreign  currencies  approximating the value of some
or all of its portfolio securities either denominated in, or whose value is tied
to, such  foreign  currency.  The fund will  segregate  on its  records  cash or
securities in an amount sufficient to cover its obligations under the contract.

   The  precise  matching  of forward  contracts  in the  amounts  and values of
securities involved generally would not be possible because the future values of
such foreign  currencies will change as a consequence of market movements in the
values of those securities between the date the forward contract is entered into
and the date it matures.  Predicting  short-term  currency  market  movements is
extremely difficult, and the successful execution of short-term hedging strategy
is  highly  uncertain.  The fund  managers  do not  intend  to enter  into  such
contracts  on a regular  basis.  Normally,  consideration  of the  prospect  for
currency parities will be incorporated into the long-term  investment  decisions
made with  respect  to overall  diversification  strategies.  However,  the fund
managers  believe that it is important  to have  flexibility  to enter into such
forward  contracts  when they  determine  that a fund's  best  interests  may be
served.

   At the  maturity  of the  forward  contract,  the  fund may  either  sell the
portfolio  security and make delivery of the foreign currency,  or it may retain
the security and  terminate the  obligation  to deliver the foreign  currency by
purchasing  an  offsetting  forward  contract  with  the  same  currency  trader
obligating  the fund to purchase,  on the same maturity date, the same amount of
the foreign currency.

   It is  impossible  to forecast  with  absolute  precision the market value of
portfolio securities at the expiration of the forward contract.  Accordingly, it
may be necessary for a fund to purchase  additional foreign currency on the spot
market  (and bear the  expense  of such  purchase)  if the  market  value of the
security is less than the amount of foreign  currency  the fund is  obligated to
deliver and if a decision is made to sell the security and make  delivery of the
foreign currency the fund is obligated to deliver.

INVESTMENT POLICIES

   Unless otherwise indicated,  with the exception of the percentage limitations
on borrowing,  the following  restrictions  apply at the time  transactions  are
entered into.  Accordingly,  any later increase or decrease beyond the specified
limitation resulting from a change in a fund's net assets will not be considered
in determining whether it has complied with its investment restrictions.

Fundamental Investment Policies

   The funds'  fundamental  investment  restrictions are set forth below.  These
investment restrictions may not be changed without approval of a majority of the
outstanding  votes of  shareholders  of a fund, as determined in accordance with
the Investment Company Act.

   For purposes of the investment restriction relating to concentration,  a fund
shall not purchase any  securities  that would cause 25% or more of the value of
the fund's total assets at the time of purchase to be invested in the securities
of one or more issuers  conducting  their principal  business  activities in the
same  industry,  provided  that  (a)  there is no  limitation  with  respect  to
obligations issued or guaranteed by the U.S. government, any state, territory or
possession  of the United  States,  the  District  of  Columbia  or any of their
authorities,   agencies,   instrumentalities   or  political   subdivisions  and
repurchase  agreements  secured by such  instruments,  (b) wholly owned  finance
companies  will be considered to be in the  industries of their parents if their
activities are primarily related to financing the activities of the parents, (c)
utilities will be divided  according to their  services,  for example,  gas, gas
transmission, electric and gas, electric and telephone will each be considered a
separate  industry,  and (d) personal credit and business credit businesses will
be considered separate industries.







Subject                    Policy

- --------------------------------------------------------------------------------

Senior Securities          A fund may not issue senior securities, except as
                           permitted under the Investment Company Act.

- --------------------------------------------------------------------------------

Borrowing                  A fund may not borrow money, except for temporary or
                           emergency purposes (not for leveraging or investment)
                           in an amount not exceeding  33-1/3% of the fund's
                           total assets (including the amount borrowed) less
                           liabilities (other than borrowings).

- --------------------------------------------------------------------------------

Lending                    A fund may not lend any security or make any other
                           loan if, as a result, more than 33-1/3% of the fund's
                           total assets would be lent to other parties, except,
                           (i) through the purchase of debt securities in
                           accordance with its investment objective, policies
                           and limitations or (ii) by engaging in repurchase
                           agreements with respect to portfolio securities.

- --------------------------------------------------------------------------------

Real Estate                A fund may not purchase or sell real estate
                           unless acquired as a result of ownership of
                           securities or other instruments. This policy shall
                           not prevent a fund from investing in securities or
                           other instruments backed by real estate or securities
                           of companies that deal in real estate or are engaged
                           in the real estate business.

- --------------------------------------------------------------------------------

Concentration              A fund may not concentrate its investments in
                           securities of issuers in a particular industry (other
                           than securities issued or guaranteed by the U.S.
                           government or any of its agencies or
                           instrumentalities).

- --------------------------------------------------------------------------------

Underwriting               A fund may not act as an underwriter of securities
                           issued by others, except to the extent that the fund
                           may be considered an underwriter within the meaning
                           of the Securities Act of 1933 in the disposition of
                           restricted securities.

- --------------------------------------------------------------------------------

Commodities                A fund may not purchase or sell physical commodities
                           unless acquired as a result of ownership of
                           securities or other instruments; provided that this
                           limitation shall not prohibit the fund from
                           purchasing or selling options and futures contracts
                           or from investing in securities or other instruments
                           backed by physical commodities.

- --------------------------------------------------------------------------------

Control                    A fund may not invest for purposes of exercising
                           control over management.


- --------------------------------------------------------------------------------


Nonfundamental Investment Policies

   In addition,  the funds are subject to the  following  additional  investment
restrictions  that  are not  fundamental  and may be  changed  by the  Board  of
Directors.


- --------------------------------------------------------------------------------
Subject             Policy
- --------------------------------------------------------------------------------

Borrowing           A fund may not purchase additional  investment securities at
                    any time during which  outstanding  borrowings  exceed 5% of
                    the total assets of the fund.

- --------------------------------------------------------------------------------

Liquidity           A fund  may  not  purchase  any  security  or  enter  into a
                    repurchase  agreement if, as a result,  more than 15% of its
                    net assets would be invested in  repurchase  agreements  not
                    entitling  the holder to payment of  principal  and interest
                    within  seven days and in  securities  that are  illiquid by
                    virtue of legal or contractual restrictions on resale or the
                    absence of a readily available market.

- --------------------------------------------------------------------------------

Short Sales         A fund may not sell securities short,  unless it owns or has
                    the right to obtain securities equivalent in kind and amount
                    to the securities sold short, and provided that transactions
                    in  futures   contracts   and  options  are  not  deemed  to
                    constitute selling securities short.

- --------------------------------------------------------------------------------

Margin              A fund may not  purchase  securities  on  margin,  except to
                    obtain  such  short-term  credits as are  necessary  for the
                    clearance of transactions, and provided that margin payments
                    in connection with futures  contracts and options on futures
                    contracts  shall not  constitute  purchasing  securities  on
                    margin.

- --------------------------------------------------------------------------------

Futures and Options A fund may enter into  futures  contracts  and write and buy
                    put and call options relating to futures  contracts.  A fund
                    may not, however,  enter into leveraged futures transactions
                    if it would be possible for the fund to lose more money than
                    it invested.

- --------------------------------------------------------------------------------

Issuers with        A fund may invest up 10% of its assets in the  securities of
Limited Operating   issues  with  limited  operating  histories.  An  issuer  is
Histories           considered  to  have a  limited  operating  history  if that
                    issuer has a record of less than three  years of  continuous
                    operation.   Periods  of  capital   formation,   incubation,
                    consolidations,   and  research  and   development   may  be
                    considered in determining  whether a particular issuer has a
                    record of three years of continuous operation.

   The  Investment  Company Act imposes  certain  additional  restrictions  upon
acquisition  by  the  funds  of  securities   issued  by  insurance   companies,
broker-dealers,  underwriters or investment advisors, and upon transactions with
affiliated persons as therein defined.  It also defines and forbids the creation
of cross and  circular  ownership.  Neither the SEC nor any other  agency of the
federal or state government  participates in or supervises the management of the
funds or their investment practices or policies.

   The  Investment  Company Act also provides that the funds may not invest more
than 25% of their  assets  in the  securities  of  issuers  engaged  in a single
industry.  For purposes of determining  industry  groups in connection with this
restriction,  the SEC ordinarily uses the Standard Industry Classification codes
developed  by the U.S.  Office of  Management  and  Budget.  In the  interest of
ensuring  adequate  diversification,  the funds monitor  industry  concentration
using a more  restrictive  list of industry groups than that  recommended by the
SEC. The advisor believes that these  classifications are reasonable and are not
so broad that the primary economic  characteristics of the companies in a single
class  are  materially   different.   The  use  of  these  restrictive  industry
classifications may, however, cause the funds to forego investment possibilities
that may otherwise be available to them under the Investment Company Act.

PORTFOLIO TURNOVER

   The  portfolio  turnover  rates of the funds  will be shown in the  Financial
Highlights table in the Prospectus.

   The fund  managers will purchase and sell  securities  without  regard to the
length of time the  security  has been held.  Accordingly,  the funds'  rates of
portfolio turnover may be substantial.

   The fund managers  intend to purchase a given security  whenever they believe
it will contribute to the stated objective of the fund. In order to achieve each
fund's investment objectives,  the managers may sell a given security, no matter
for how long or for how short a period it has been held in the portfolio, and no
matter whether the sale is at a gain or at a loss, if the managers  believe that
the security is not fulfilling its purpose,  either because, among other things,
it did not live up to the managers' expectations,  or because it may be replaced
with another  security  holding greater  promise,  or because it has reached its
optimum  potential,  or because of a change in the circumstances of a particular
company  or  industry  or in  general  economic  conditions,  or because of some
combination of such reasons.

   When a general decline in security  prices is  anticipated,  the equity funds
may decrease or eliminate  entirely  their equity  positions and increase  their
cash positions, and when a rise in price levels is anticipated, the equity funds
may increase their equity positions and decrease their cash positions.  However,
it  should be  expected  that the  funds  will,  under  most  circumstances,  be
essentially fully invested in equity securities.

   Because investment decisions are based on the anticipated contribution of the
security in question to a fund's objectives,  the managers believe that the rate
of portfolio  turnover is  irrelevant  when they believe a change is in order to
achieve the objectives.  As a result,  a fund's annual  portfolio  turnover rate
cannot be  anticipated  and may be higher than other  mutual  funds with similar
investment objectives.  Higher turnover would generate  correspondingly  greater
brokerage  commissions,  which  is a cost  the  funds  pay  directly.  Portfolio
turnover also may affect the character of capital gains realized and distributed
by the fund, if any,  because  short-term  capital gains are taxable as ordinary
income.  This  disclosure   regarding  portfolio  turnover  is  a  statement  of
fundamental policy and may be changed only by a vote of the shareholders.

   Because the  managers do not take  portfolio  turnover  rate into  account in
making investment decisions, (1) the managers have no intention of accomplishing
any  particular  rate of  portfolio  turnover,  whether high or low, and (2) the
portfolio  turnover rates in the past should not be considered as representative
of the rates that will be attained in the future.

MANAGEMENT

The Board of Directors

   The Board of  Directors  oversees  the  management  of the funds and meets at
least quarterly to review reports about fund  operations.  Although the Board of
Directors  does not  manage  the  funds,  it has  hired  the  advisor  to do so.
Two-thirds of the directors are independent of the funds' advisor, that is, they
are not employed by and have no financial interest in the advisor.

   The  individuals  listed  in the table  below  whose  names are  marked by an
asterisk (*) are  interested  persons of the funds (as defined in the Investment
Company Act) by virtue of, among other  considerations,  their  affiliation with
either the funds; the advisor,  American  Century  Investment  Management,  Inc.
(ACIM);  the funds'  agent for transfer and  administrative  services,  American
Century Services  Corporation (ACSC); the parent  corporation,  American Century
Companies,  Inc. (ACC) or ACC's subsidiaries;  the funds' distribution agent and
co-administrator,  Funds Distributor,  Inc. (FDI); or other funds advised by the
advisor.  Each  director  listed  below  serves as a director of six  registered
investment  companies in the American  Century  family of funds,  which are also
advised by the advisor.


<TABLE>
<CAPTION>
Name (Age)                          Position(s) Held With Fund   Principal Occupation(s) during Past Five Years
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                 <C>                          <C>
James E. Stowers, Jr.* (75)         Director,                    Chairman, Director and controlling shareholder, ACC,
4500 Main Street                    Chairman of the Board        Chairman and Director, ACIM, ACSC and ACIS(1)
Kansas City, MO 64111
- ------------------------------------------------------------------------------------------------------------------------------------
James E. Stowers III*(40)           Director                     Director and Chief Executive Officer, ACC, ACIM, ACSC and
4500 Main Street                                                 ACIS(2)
Kansas City, MO  64111
- ------------------------------------------------------------------------------------------------------------------------------------
Thomas A. Brown (59)                Director                     Director of Plains States Development, Applied Industrial
4500 Main Street                                                 Technologies, Inc., a corporation engaged in the sale of
Kansas City, MO  64111                                           bearings and power transmission products
- ------------------------------------------------------------------------------------------------------------------------------------
Robert W. Doering, M.D. (67)        Director                     Retired, formerly a general surgeon
4500 Main Street
Kansas City, MO  64111
- ------------------------------------------------------------------------------------------------------------------------------------
Andrea C. Hall, Ph.D. (54)          Director                     Senior Vice President and Associate Director, Midwest
4500 Main Street                                                 Research Institute
Kansas City, MO  64111
- ------------------------------------------------------------------------------------------------------------------------------------
D.D. (Del) Hock (64)                Director                     Retired, formerly Chairman, Public Service Company of
4500 Main Street                                                 Colorado; Director, Service Tech, Inc., Hathaway
Kansas City, MO  64111                                           Corporation, and J.D. Edwards & Company
- ------------------------------------------------------------------------------------------------------------------------------------
Donald H. Pratt (61)                Director                     Chairman and Director, Butler Manufacturing Company
4500 Main Street                    Vice Chairman                Director, Atlas-Copco North America Inc.
Kansas City, MO 64111               of the Board
- ------------------------------------------------------------------------------------------------------------------------------------
Lloyd T. Silver, Jr. (71)           Director                     President, LSC, Inc., manufacturer's representative
4500 Main Street
Kansas City, MO  64111
- ------------------------------------------------------------------------------------------------------------------------------------
M. Jeannine Strandjord (53)         Director                     Senior Vice President, Finance, Sprint Corporation;
4500 Main Street                                                 Director, DST Systems, Inc.
Kansas City, MO  64111
- ------------------------------------------------------------------------------------------------------------------------------------
(1)Father of James E. Stowers III
(2)Son of James E. Stowers, Jr.

Committees

   The Board has four standing  committees to oversee specific  functions of the
funds'  operations.  Information  about  these  committees  appears in the table
below. The director first named serves as chairman of the committee.




Committee                   Members                       Function of Committee
- --------------------------- ----------------------------- --------------------------------------------------------------------------
- --------------------------- ----------------------------- --------------------------------------------------------------------------
Executive                   James E. Stowers, Jr.         The Executive Committee performs the functions of the Board of
                            James E. Stowers III          Directors between Board meetings, subject to the limitations on its
                            Donald H. Pratt               power set out in the Maryland General Corporation Law, and except
                                                          for matters required by the Investment Company Act to be acted
                                                          upon by the whole Board.
- --------------------------- ----------------------------- --------------------------------------------------------------------------
- --------------------------- ----------------------------- --------------------------------------------------------------------------
Compliance                  Thomas A. Brown               The Compliance Committee reviews the results of the funds' compliance
                            Donald H. Pratt               testing program, reviews quarterly reports from the advisor to the Board
                            Lloyd T. Silver, Jr.          regarding various compliance matters and monitors the implementation of
                            Andrea C. Hall, Ph.D.         the funds' Code of Ethics, including any violations thereof.
- --------------------------- ----------------------------- --------------------------------------------------------------------------
- --------------------------- ----------------------------- --------------------------------------------------------------------------
Audit                       M. Jeannine Strandjord        The Audit Committee recommends the engagement of the funds' independent
                            Robert W. Doering, M.D.       auditors and oversees its activities. The committee receives reports from
                            D.D. (Del) Hock               the advisor's Internal Audit Department, which is accountable to the
                                                          committee. The committee also receives reporting about compliance matters
                                                          affecting the funds.
- --------------------------- ----------------------------- --------------------------------------------------------------------------
- --------------------------- ----------------------------- --------------------------------------------------------------------------
Nominating                  Donald H. Pratt               The Nominating Committee primarily considers and recommends individuals
                            Andrea C. Hall, Ph.D.         for nomination as directors. The names of potential director candidates
                            D.D. (Del) Hock               are drawn from a number of sources, including recommendations from
                                                          members of the board, management and shareholders. The committee also
                                                          reviews and makes recommendations to the Board with respect to the
                                                          composition of Board committees and other Board-related matters,
                                                          including its organization, size, composition, responsibilities,
                                                          functions and compensation.
- --------------------------- ----------------------------- --------------------------------------------------------------------------
</TABLE>


Compensation of Directors

   The directors  also serve as directors for five American  Century  investment
companies  other than the  corporation.  Each  director who is not an interested
person as  defined in the  Investment  Company  Act  receives  compensation  for
service as a member of the Board of all six such  companies  based on a schedule
that takes into  account the number of meetings  attended  and the assets of the
funds for which the meetings are held. These fees and expenses are divided among
the six investment  companies  based,  in part,  upon their relative net assets.
Under the terms of the  management  agreement  with the  advisor,  the funds are
responsible for paying such fees and expenses.

   The following table shows the aggregate  compensation paid by the corporation
for the periods  indicated and by the six  investment  companies  served by this
Board  to each  director  who is not an  interested  person  as  defined  in the
Investment Company Act.

Aggregate Director Compensation for Fiscal Year Ended October 31, 1999
- --------------------------------------------------------------------------------
                                    Total                     Total Compensation
                                    Compensation              from the
                                    from the                  American Century
Name of Director                    Funds (1)                 Family of Funds(2)
- ----------------                    ---------                 ------------------
Thomas A. Brown                     $                         $
Robert W. Doering, M.D.
Andrea C. Hall, Ph.D.                       Info not yet available
D.D. (Del) Hock
Donald H. Pratt
Lloyd T. Silver, Jr.
M. Jeannine Strandjord
- --------------------------------------------------------------------------------

   1 Includes  compensation  paid to the directors  during the fiscal year ended
October 31,  1999,  and also  includes  amounts  deferred at the election of the
directors under the American Century Mutual Funds Deferred Compensation Plan for
Non-Interested Directors and Trustees.

   2 Includes  compensation  paid by the six investment  company  members of the
American Century family of funds served by this Board.

   The funds have adopted the American  Century Deferred  Compensation  Plan for
Non-Interested Directors and Trustees. Under the plan, the independent directors
may defer  receipt of all or any part of the fees to be paid to them for serving
as directors of the funds.

   All deferred fees are credited to an account  established  in the name of the
directors. The amounts credited to the account then increase or decrease, as the
case may be, in accordance  with the  performance of one or more of the American
Century funds that are selected by the director.  The account balance  continues
to fluctuate in accordance  with the  performance  of the selected fund or funds
until  final  payment of all  amounts  credited to the  account.  Directors  are
allowed to change their designation of mutual funds from time to time.

   No deferred fees are payable until such time as a director  resigns,  retires
or  otherwise  ceases to be a member of the Board of  Directors.  Directors  may
receive  deferred  fee  account  balances  either  in a lump sum  payment  or in
substantially equal installment  payments to be made over a period not to exceed
10 years.  Upon the death of a  director,  all  remaining  deferred  fee account
balances are paid to the director's  beneficiary  or, if none, to the director's
estate.

   The plan is an unfunded plan and,  accordingly,  the funds have no obligation
to segregate assets to secure or fund the deferred fees. The rights of directors
to receive their  deferred fee account  balances are the same as the rights of a
general unsecured  creditor of the funds. The plan may be terminated at any time
by the  administrative  committee of the plan. If  terminated,  all deferred fee
account balances will be paid in a lump sum.

   No deferred  fees were paid to any director  under the plan during the fiscal
year ended October 31, 1999.

Officers

   Background  information  for the  officers  of the funds is  provided  in the
following  table.  All  persons  named as  officers  of the funds  also serve in
similar  capacities for the 12 other investment  companies  advised by ACIM. Not
all officers of the funds are listed;  only those  officers  with  policy-making
functions  for the funds are listed.  No officer is  compensated  for his or her
service  as an officer of the funds.  The  individuals  listed in the  following
table are interested  persons of the funds (as defined in the Investment Company
Act) by virtue of, among other considerations, their affiliation with either the
funds;  ACC;  ACC's  subsidiaries  (including  ACIM  and  ACSC);  or the  funds'
distributor (FDI).


<TABLE>
<CAPTION>
Name (Age)                         Positions Held With     Principal Occupation(s)
Address                            Fund                    During Past Five Years
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                <C>                     <C>
George A. Rio (44)                 President               Executive Vice President and Director of Client Services, FDI
60 State St.                                               (March 1998 to present)
Boston, MA 02109                                           Senior Vice President and Senior Key Account Manager, Putnam
                                                           Mutual Funds (June 1995 to March 1998)
                                                           Director Business Development, First Data Corporation
                                                           (May 1994 to June 1995)
- ------------------------------------------------------------------------------------------------------------------------------------
Christopher J. Kelley (34)         Vice President          Vice President and Associate General Counsel, FDI (July 1996 to
60 State St.                                               present)
Boston, MA 02109                                           Assistant Counsel, Forum Financial Group (April 1994 to July 1996)
- ------------------------------------------------------------------------------------------------------------------------------------
Mary A. Nelson (35)                Vice President          Vice President and Manager of Treasury Services and
60 State St.                                               Administration, FDI (1994 to present)
Boston, MA 02109
- ------------------------------------------------------------------------------------------------------------------------------------
Maryanne Roepke, CPA (43)          Vice President and      Senior Vice President, Treasurer and Principal Accounting
9300 Ward Parkway                  Treasurer               Officer, ACSC
Kansas City, MO 64111
- ------------------------------------------------------------------------------------------------------------------------------------
David C. Tucker (41)               Vice President          Senior Vice President and General Counsel, ACSC and ACIM
4500 Main St.                                              (June 1998 to present)
Kansas City, MO 64111                                      General Counsel, ACC (June 1998 to present)
                                                           Consultant to mutual fund industry (May 1997 to April 1998)
                                                           Vice President and General Counsel, Janus Companies (1990 to 1997)
- ------------------------------------------------------------------------------------------------------------------------------------
Paul Carrigan, Jr. (50)            Secretary               Secretary, ACC (December 1998 to present)
4500 Main St.                                              Director of Legal Operations, ACSC (February 1996 to present)
Kansas City, MO 64111                                      Board Communications Manager, The Benham Company
                                                           (April 1994 to January 1996)
- ------------------------------------------------------------------------------------------------------------------------------------
C. Jean Wade (35)                  Controller              Controller-Fund Accounting, ACSC
9300 Ward Parkway
Kansas City, MO 64114
- ------------------------------------------------------------------------------------------------------------------------------------
Merele A. May (36)                 Controller              Vice President, Controller-Fund Accounting, ACSC
9300 Ward Parkway
Kansas City, MO 64114
- ------------------------------------------------------------------------------------------------------------------------------------
Jon Zindel (32)                    Tax Officer             Director of Taxation, ACSC (since 1996)
9300 Ward Parkway                                          Tax Manager, PricewaterhouseCoopers LLP (1989)
Kansas City, MO 64114
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>





SERVICE PROVIDERS

   The funds have no employees. To conduct the funds' day-to-day activities, the
funds have hired a number of service  providers.  Each  service  provider  has a
specific function to fill on behalf of the funds and is described below.

   ACIM and ACSC, are both wholly owned by ACC.  James E. Stowers Jr.,  Chairman
of ACC,  controls  ACC by virtue of his  ownership  of a majority  of its voting
stock.

INVESTMENT ADVISOR

   A  description  of  the  responsibilities  of  the  advisor  appears  in  the
Prospectus  under the heading  "Management."  For the  services  provided to the
funds,  the advisor  receives a monthly fee based on a percentage of the average
net assets of the fund as described in the Prospectus.

   On the first  business day of each month,  the funds pay a management  fee to
the  advisor  for the  previous  month at the  specified  rate.  The fee for the
previous month is calculated by  multiplying  the applicable fee for the fund by
the  aggregate  average  daily  closing  value of a fund's net assets during the
previous month.  This number is then multiplied by a fraction,  the numerator of
which is the number of days in the previous  month and the  denominator of which
is 365 (366 in leap years).

   The  management  agreement  shall continue in effect until the earlier of the
expiration  of two  years  from the date of its  execution  or until  the  first
meeting of  shareholders  following such execution and for as long thereafter as
its  continuance  is  specifically  approved at least annually by (1) the funds'
Board of  Directors,  or by the vote of a  majority  of  outstanding  votes  (as
defined in the  Investment  Company  Act) and (2) the vote of a majority  of the
directors  of the funds  who are not  parties  to the  agreement  or  interested
persons of the  advisor,  cast in person at a meeting  called for the purpose of
voting on such approval.

   The  management  agreement  provides  that it may be  terminated  at any time
without payment of any penalty by the funds' Board of Directors, or by a vote of
a majority of outstanding votes, on 60 days' written notice to the advisor,  and
that it shall be automatically terminated if it is assigned.

   The management agreement provides that the advisor shall not be liable to the
funds or their  shareholders  for anything other than willful  misfeasance,  bad
faith, gross negligence or reckless disregard of its obligations and duties.

   The  management  agreement  also  provides that the advisor and its officers,
directors and employees may engage in other business,  devote time and attention
to any other  business  whether of a similar or  dissimilar  nature,  and render
services to others.

   Certain  investments  may be  appropriate  for the  funds  and also for other
clients  advised by the advisor.  Investment  decisions  for the funds and other
clients are made with a view to achieving their respective investment objectives
after  consideration of such factors as their current holdings,  availability of
cash for investment  and the size of their  investment  generally.  A particular
security  may be bought or sold for only one  client  or fund,  or in  different
amounts  and at  different  times for more than one but less than all clients or
funds. In addition,  purchases or sales of the same security may be made for two
or more clients or funds on the same date. Such  transactions  will be allocated
among  clients in a manner  believed by the advisor to be equitable to each.  In
some cases this procedure could have an adverse effect on the price or amount of
the securities purchased or sold by a fund.

   The advisor may aggregate purchase and sale orders of the funds with purchase
and sale  orders  of its  other  clients  when the  advisor  believes  that such
aggregation  provides the best  execution for the funds.  The Board of Directors
has  approved  the policy of the  advisor  with  respect to the  aggregation  of
portfolio transactions.  Where portfolio transactions have been aggregated,  the
funds  participate  at the  average  share  price for all  transactions  in that
security on a given day and share  transaction  costs on a pro rata  basis.  The
advisor  will not  aggregate  portfolio  transactions  of the  funds  unless  it
believes such  aggregation is consistent with its duty to seek best execution on
behalf  of the  funds and the terms of the  management  agreement.  The  advisor
receives  no  additional  compensation  or  remuneration  as a  result  of  such
aggregation.

Other Advisory Relationships

   In addition to managing the funds,  the advisor also serves as an  investment
advisor  to  seven  institutional  accounts  and  to  the  following  registered
investment companies:

   American Century World Mutual Funds, Inc.
   American Century Premium Reserves, Inc.
   American Century Variable Portfolios, Inc.
   American Century Capital Portfolios, Inc.
   American Century Strategic Asset Allocations, Inc.
   American Century Municipal Trust
   American Century Government Income Trust
   American Century Investment Trust
   American Century Target Maturities Trust
   American Century Quantitative Equity Funds
   American Century International Bond Funds
   American Century California Tax-Free and Municipal Funds

TRANSFER AGENT AND ADMINISTRATOR

   American  Century  Services  Corporation,  4500  Main  Street,  Kansas  City,
Missouri  64111,  serves as  transfer  agent and  dividend-paying  agent for the
funds.  It provides  physical  facilities,  computer  hardware  and software and
personnel, for the day-to-day administration of the funds and of the advisor.
The advisor pays ACSC for such services.

   From time to time,  special  services  may be  offered  to  shareholders  who
maintain  higher  share  balances  in our family of funds.  These  services  may
include the waiver of minimum investment requirements, expedited confirmation of
shareholder  transactions,  newsletters and a team of personal  representatives.
Any expenses associated with these special services will be paid by the advisor.

   Pursuant  to  a   Sub-Administration   Agreement  with  the  advisor,   Funds
Distributor,  Inc. (FDI) serves as the  co-administrator  for the funds.  FDI is
responsible for (i) providing  certain  officers of the funds and (ii) reviewing
and filing  marketing and sales  literature on behalf of the funds. The fees and
expenses of FDI are paid by the advisor out of its unified fee.

DISTRIBUTOR

   The funds' shares are  distributed  by FDI, a registered  broker-dealer.  The
distributor is a wholly owned indirect subsidiary of Boston Institutional Group,
Inc. The  distributor's  principal  business  address is 60 State Street,  Suite
1300, Boston, Massachusetts 02109.

   The  distributor  is the  principal  underwriter  of the funds'  shares.  The
distributor makes a continuous,  best-efforts underwriting of the funds' shares.
This means that the distributor has no liability for unsold shares.



OTHER SERVICE PROVIDERS
CUSTODIAN BANKS

   Chase  Manhattan  Bank,  770  Broadway,   10th  Floor,  New  York,  New  York
10003-9598,  and Commerce Bank, N.A., 1000 Walnut,  Kansas City, Missouri 64105,
each serves as custodian of the assets of the funds. The custodians take no part
in  determining  the  investment  policies  of the  funds or in  deciding  which
securities are purchased or sold by the funds. The funds, however, may invest in
certain  obligations  of  the  custodians  and  may  purchase  or  sell  certain
securities from or to the custodians.

INDEPENDENT AUDITORS

   Deloitte & Touche LLP is the independent auditor of the funds. The address of
Deloitte & Touche LLP is 1010 Grand Boulevard,  Kansas City,  Missouri 64106. As
the independent  auditor of the funds,  Deloitte & Touche LLP provides  services
including  (1) audit of the  annual  financial  statements  for each  fund,  (2)
assistance and consultation in connection with SEC filings and (3) review of the
annual federal income tax return filed for each fund.

BROKERAGE ALLOCATION

   Under the management agreement between the funds and the advisor, the advisor
has the  responsibility  of selecting  brokers and dealers to execute  portfolio
transactions.  The  funds'  policy is to secure  the most  favorable  prices and
execution  of orders on its  portfolio  transactions.  So long as that policy is
met, the advisor may take into  consideration  the factors  discussed below when
selecting brokers.

   The  advisor  receives   statistical  and  other  information  and  services,
including research, without cost from brokers and dealers. The advisor evaluates
such information and services,  together with all other  information that it may
have, in supervising  and managing the  investments  of the funds.  Because such
information  and services  may vary in amount,  quality and  reliability,  their
influence in selecting brokers varies from none to very substantial. The advisor
proposes to continue to place some of the funds' brokerage  business with one or
more brokers who provide information and services. Such information and services
will be in addition to and not in lieu of services  required to be  performed by
the advisor.  The advisor does not utilize brokers that provide such information
and  services  for the purpose of reducing  the  expense of  providing  required
services to the funds.

   The  brokerage  commissions  paid by the funds may exceed  those that another
broker might have charged for  effecting the same  transactions,  because of the
value of the brokerage and research  services  provided by the broker.  Research
services   furnished  by  brokers  through  whom  the  funds  effect  securities
transactions  may be used by the advisor in servicing all of its  accounts,  and
not all such  services may be used by the advisor in managing the  portfolios of
the funds.

   The staff of the SEC has expressed the view that the best price and execution
of  over-the-counter  transactions  in  portfolio  securities  may be secured by
dealing directly with principal  market makers,  thereby avoiding the payment of
compensation to another broker. In certain situations, the officers of the funds
and the advisor believe that the facilities,  expert personnel and technological
systems  of a broker  often  enable  the  funds to secure as good a net price by
dealing with a broker instead of a principal market maker, even after payment of
the compensation to the broker. The funds regularly place their over-the-counter
transactions  with  principal  market  makers,  but also may deal on a brokerage
basis when utilizing electronic trading networks or as circumstances warrant.


INFORMATION ABOUT FUND SHARES

   Each of the funds is a series of shares issued by the corporation, and shares
of each fund have equal voting rights. In addition, each series (or fund) may be
divided into separate  classes.  See "Multiple Class  Structure," which follows.
Additional funds and classes may be added without a shareholder vote.

   Each fund votes separately on matters affecting that fund exclusively. Voting
rights  are not  cumulative,  so that  investors  holding  more  than 50% of the
corporation's (i.e., all funds') outstanding shares may be able to elect a Board
of Directors.  The corporation undertakes  dollar-based voting, meaning that the
number of votes a shareholder  is entitled to is based upon the dollar amount of
the  shareholder's  investment.  The election of directors is  determined by the
votes received from all the corporation's shareholders without regard to whether
a majority of shares of any one fund voted in favor of a  particular  nominee or
all nominees as a group.

   The assets belonging to each series or class of shares are held separately by
the  custodian  and the shares of each series or class  represent  a  beneficial
interest in the principal,  earnings and profit (or losses) of  investments  and
other assets held for each series or class. Your rights as a shareholder are the
same for all series or classes of securities  unless  otherwise  stated.  Within
their respective series or class, all shares have equal redemption rights.  Each
share, when issued, is fully paid and non-assessable.

   In  the  event  of  complete   liquidation   or  dissolution  of  the  funds,
shareholders of each series or class of shares shall be entitled to receive, pro
rata, all of the assets less the liabilities of that series or class.

   Each  shareholder has rights to dividends and  distributions  declared by the
fund he or she owns and to the net assets of such fund upon its  liquidation  or
dissolution proportionate to his or her share ownership interest in the fund.

MULTIPLE CLASS STRUCTURE

   The  corporation's  Board of Directors has adopted a multiple class plan (the
Multiclass  Plan)  pursuant to Rule 18f-3  adopted by the SEC.  Pursuant to such
plan, the funds may issue up to four classes of shares:  an Investor  Class,  an
Institutional  Class, a Service Class and an Advisor Class.  Not all funds offer
all four classes.

   The Investor Class is made available to investors  directly  without any load
or commission,  for a single unified management fee. The Institutional,  Service
and Advisor Classes are made available to institutional  shareholders or through
financial  intermediaries  that do not require the same level of shareholder and
administrative  services from the advisor as Investor Class  shareholders.  As a
result,  the advisor is able to charge  these  classes a lower total  management
fee. In addition to the  management  fee,  however the Advisor  Class shares are
subject  to a Master  Distribution  and  Shareholder  Services  Plan  (described
beginning  on page  29).  The plan  has  been  adopted  by the  funds'  Board of
Directors and initial  shareholder in accordance  with Rule 12b-1 adopted by the
SEC under the Investment Company Act.

RULE 12b-1

   Rule 12b-1 permits an investment company to pay expenses  associated with the
distribution  of its shares in accordance  with a plan adopted by the investment
company's Board of Directors and approved by its shareholders.  Pursuant to such
rule, the Board of Directors and initial shareholder of the funds' Advisor Class
have approved and entered into a Master  Distribution  and Shareholder  Services
Plan, with respect to the Advisor Class (the Plan). The Plan is described below.

   In  adopting  the Plan,  the Board of  Directors  (including  a  majority  of
directors  who are not  interested  persons  of the  funds  [as  defined  in the
Investment  Company Act],  hereafter  referred to as the independent  directors)
determined  that there was a reasonable  likelihood  that the Plan would benefit
the funds and the  shareholders of the affected  class.  Pursuant to Rule 12b-1,
information with respect to revenues and expenses under the Plan is presented to
the Board of Directors  quarterly for its  consideration  in connection with its
deliberations as to the continuance of the Plan. Continuance of the Plan must be
approved by the Board of  Directors  (including  a majority  of the  independent
directors) annually. The Plan may be amended by a vote of the Board of Directors
(including a majority of the  independent  directors),  except that the Plan may
not be amended to  materially  increase the amount to be spent for  distribution
without  majority  approval of the  shareholders of the affected class. The Plan
terminates  automatically  in the event of an  assignment  and may be terminated
upon a vote of a majority of the independent  directors or by vote of a majority
of the outstanding voting securities of the affected class.

   All fees paid under the Plan will be made in  accordance  with  Section 26 of
the Rules of Fair Practice of the National  Association  of  Securities  Dealers
(NASD).

Master Distribution and Shareholder Services Plan

   As described in the  Prospectus,  the funds'  Advisor Class of shares also is
made available to participants in employer-sponsored retirement or savings plans
and to  persons  purchasing  through  financial  intermediaries  such as  banks,
broker-dealers  and  insurance  companies.  The funds'  distributor  enters into
contracts  with various  banks,  broker-dealers,  insurance  companies and other
financial  intermediaries,  with respect to the sale of the funds' shares and/or
the use of the funds'  shares in various  investment  products or in  connection
with various financial services.

   Certain  recordkeeping and  administrative  services that are provided by the
funds' transfer agent for the Investor Class  shareholders may be performed by a
plan sponsor (or its agents) or by a financial  intermediary for shareholders in
the Advisor Class.  In addition to such services,  the financial  intermediaries
provide various distribution services.

   To enable  the  funds'  shares to be made  available  through  such plans and
financial  intermediaries,  and to compensate them for such services, the funds'
advisor has reduced its  management  fee by 0.25% per annum with  respect to the
Advisor  Class  shares and the funds'  Board of  Directors  has adopted a Master
Distribution  and Shareholder  Services Plan.  Pursuant to the Plan, the Advisor
Class shares pay a fee of 0.50%  annually of the aggregate  average daily assets
of the  funds'  Advisor  Class  shares,  0.25% of which is paid for  Shareholder
Services  (as  described  below)  and  0.25% of  which is paid for  distribution
services.

   Payments may be made for a variety of shareholder  services,  including,  but
not limited to, (a) receiving, aggregating and processing purchase, exchange and
redemption  requests  from  beneficial  owners  (including  contract  owners  of
insurance  products  that utilize the funds as underlying  investment  media) of
shares and placing  purchase,  exchange  and  redemption  orders with the funds'
distributor;  (b) providing  shareholders with a service that invests the assets
of their accounts in shares pursuant to specific or pre-authorized instructions;
(c)  processing  dividend  payments  from a fund on behalf of  shareholders  and
assisting  shareholders in changing dividend options,  account  designations and
addresses; (d) providing and maintaining elective services such as check writing
and wire transfer services;  (e) acting as shareholder of record and nominee for
beneficial owners; (f) maintaining account records for shareholders and/or other
beneficial  owners;  (g) issuing  confirmations of  transactions;  (h) providing
subaccounting  with respect to shares  beneficially  owned by customers of third
parties  or  providing  the   information  to  a  fund  as  necessary  for  such
subaccounting;  (i) preparing and forwarding shareholder communications from the
funds (such as proxies,  shareholder  reports,  annual and semiannual  financial
statements and dividend,  distribution  and tax notices) to shareholders  and/or
other  beneficial  owners;  and (j) providing other similar  administrative  and
sub-transfer  agency  services.   Shareholder  services  do  not  include  those
activities  and expenses  that are  primarily  intended to result in the sale of
additional shares of the funds.

   Distribution  services  include any activity  undertaken or expense  incurred
that is primarily intended to result in the sale of Advisor Class shares,  which
services  may  include  but  are  not  limited  to,  (a) the  payment  of  sales
commissions,  on-going  commissions  and other  payments  to  brokers,  dealers,
financial  institutions  or others who sell  Advisor  Class  shares  pursuant to
selling  agreements;  (b)  compensation to registered  representatives  or other
employees of  distributor  who engage in or support  distribution  of the funds'
Advisor Class shares; (c) compensation to, and expenses  (including overhead and
telephone  expenses)  of,   distributor;   (d)  the  printing  of  prospectuses,
statements  of  additional  information  and  reports  for other  than  existing
shareholders; (e) the preparation, printing and distribution of sales literature
and advertising  materials  provided to the funds'  shareholders and prospective
shareholders;  (f)  receiving  and  answering  correspondence  from  prospective
shareholders,  including  distributing  prospectuses,  statements  of additional
information,  and shareholder reports; (g) the providing of facilities to answer
questions  from  prospective  investors  about fund shares;  (h) complying  with
federal and state  securities  laws  pertaining to the sale of fund shares;  (i)
assisting  investors in completing  application forms and selecting dividend and
other  account  options;  (j) the  providing of other  reasonable  assistance in
connection  with  the  distribution  of  fund  shares;  (k) the  organizing  and
conducting  of sales  seminars  and  payments in the form of  transactional  and
compensation  or promotional  incentives;  (l) profit on the foregoing;  (m) the
payment of service fees for the  provision of personal,  continuing  services to
investors,  as  contemplated  by the Rules of Fair Practice of the NASD; and (n)
such other distribution and services activities as the advisor determines may be
paid for by the funds  pursuant to the terms of this agreement and in accordance
with Rule 12b-1 of the Investment Company Act.

BUYING AND SELLING FUND SHARES

   Information about buying,  selling and exchanging fund shares is contained in
the  funds'  Prospectus  and in Your Guide to  American  Century  Services.  The
Prospectus  and guide are  available  to  investors  without  charge  and may be
obtained by calling us.

VALUATION OF A FUND'S SECURITIES

   Each fund's net asset value per share (NAV) is  calculated as of the close of
business  of the New York  Stock  Exchange  (the  Exchange),  usually  at 4 p.m.
Eastern  time on each  day the  Exchange  is open  for  business.  The  Exchange
typically  observes the following  holidays:  New Year's Day, Martin Luther King
Jr. Day,  Presidents' Day, Good Friday,  Memorial Day,  Independence  Day, Labor
Day,  Thanksgiving  Day and  Christmas  Day.  Although the funds expect the same
holidays  to be  observed in the  future,  the  Exchange  may modify its holiday
schedule at any time.

   The advisor typically completes its trading on behalf of each fund in various
markets before the Exchange closes for the day. Each fund's NAV is calculated by
adding  the  value of all  portfolio  securities  and  other  assets,  deducting
liabilities  and  dividing  the  result by the  number  of  shares  outstanding.
Expenses and interest earned on portfolio securities are accrued daily.

   The portfolio  securities of the funds,  except as otherwise noted, listed or
traded on a domestic  securities  exchange  are valued at the last sale price on
that  exchange.  Portfolio  securities  primarily  traded on foreign  securities
exchanges  generally  are  valued  at  the  preceding  closing  values  of  such
securities on the exchange where primarily traded. If no sale is reported, or if
local convention or regulation so provides, the mean of the latest bid and asked
prices is used.  Depending on local convention or regulation,  securities traded
over-the-counter  are priced at the mean of the latest bid and asked prices,  or
at the last sale  price.  When  market  quotations  are not  readily  available,
securities and other assets are valued at fair value as determined in accordance
with procedures adopted by the Board of Directors.

   Debt  securities  not traded on a principal  securities  exchange  are valued
through  valuations  obtained from a commercial  pricing  service or at the most
recent  mean of the bid and asked  prices  provided  by  investment  dealers  in
accordance with procedures established by the Board of Directors.

   Because there are hundreds of thousands of municipal issues outstanding,  and
the majority of them do not trade daily, the prices provided by pricing services
for these types of securities are generally  determined without regard to bid or
last sale prices.  In valuing  securities,  the pricing services  generally take
into  account  institutional  trading  activity,  trading in  similar  groups of
securities,  and any developments  related to specific  securities.  The methods
used by the pricing  service and the valuations so  established  are reviewed by
the advisor under the general supervision of the Board of Directors. There are a
number of pricing services  available,  and the advisor, on the basis of ongoing
evaluation of these services,  may use other pricing services or discontinue the
use of any pricing service in whole or in part.

   Securities  maturing  within 60 days of the  valuation  date may be valued at
cost,  plus or minus any  amortized  discount or premium,  unless the  directors
determine  that this would not  result in fair  valuation  of a given  security.
Other assets and securities for which  quotations are not readily  available are
valued in good faith at their fair value using methods  approved by the Board of
Directors.

   The  value  of an  exchange-traded  foreign  security  is  determined  in its
national currency as of the close of trading on the foreign exchange on which it
is traded or as of the close of business on the New York Stock Exchange, if that
is earlier.  That value is then translated to dollars at the prevailing  foreign
exchange rate.

   Trading in securities on European and Far Eastern securities exchanges and
over-the-counter markets is normally completed at various times before the close
of  business on each day that the New York Stock  Exchange is open.  If an event
were to occur after the value of a security was established,  but before the net
asset value per share was determined,  that was likely to materially  change the
net asset value,  then that security would be valued at fair value as determined
in accordance with procedures adopted by the Board of Directors.

   Trading of these  securities  in foreign  markets may not take place on every
exchange  business day. In addition,  trading may take place in various  foreign
markets on Saturdays or on other days when the exchange is not open and on which
the funds' net asset values are not calculated.  Therefore, such calculations do
not take place contemporaneously with the determination of the prices of many of
the portfolio  securities  used in such  calculation and the value of the funds'
portfolios may be affected on days when shares of the funds may not be purchased
or redeemed.


TAXES
FEDERAL INCOME TAX

   Each fund  intends to qualify  annually as a "regulated  investment  company"
under  Subchapter M of the Internal Revenue Code of 1986, as amended (the Code).
By so qualifying,  a fund will be exempt from federal income taxes to the extent
that it  distributes  substantially  all of its net  investment  income  and net
realized capital gains (if any) to shareholders. If a fund fails to qualify as a
regulated  investment  company,  it  will be  liable  for  taxes,  significantly
reducing its distributions to shareholders and eliminating shareholders' ability
to treat  distributions  of the funds in the manner  they were  realized  by the
funds.

   If fund shares are purchased through taxable  accounts,  distributions of net
investment  income  and net  short-term  capital  gains  are  taxable  to you as
ordinary  income.  The  dividends  from  net  income  may  qualify  for  the 70%
dividends-received  deduction for  corporations to the extent that the fund held
shares receiving the dividend for more than 45 days.

   Distributions  from gains on assets held longer than 12 months are taxable as
long-term  gains  regardless  of the  length of time you have  held the  shares.
However,  you should note that any loss  realized upon the sale or redemption of
shares held for six months or less will be treated as a long-term  capital  loss
to the  extent  of any  distributions  of  long-term  capital  gains to you with
respect to such shares.

   Dividends and interest received by a fund on foreign securities may give rise
to withholding  and other taxes imposed by foreign  countries.  Tax  conventions
between  certain  countries and the United  States may reduce or eliminate  such
taxes.  Foreign  countries  generally do not impose taxes on capital  gains with
respect to investments by  non-resident  investors.  The foreign taxes paid by a
fund will reduce its dividends.

   If more  than 50% of the  value of a fund's  total  assets  at the end of its
fiscal year consists of securities of foreign corporations, the fund may qualify
for and make an election with the Internal  Revenue Service with respect to such
fiscal year so that fund  shareholders may be able to claim a foreign tax credit
in lieu of a deduction  for foreign  income  taxes paid by the fund.  If such an
election is made,  the foreign  taxes paid by the fund will be treated as income
received by you.  In order for you to utilize  the foreign tax credit,  you must
have held your shares for 16 days or more during the 30-day period, beginning 15
days prior to the ex-dividend  date for the mutual fund shares.  The mutual fund
must  meet  a  similar  holding  period  requirement  with  respect  to  foreign
securities to which a dividend is  attributable.  Any portion of the foreign tax
credit that is ineligible as a result of the fund not meeting the holding period
requirement  will be  separately  disclosed  and may be  eligible as an itemized
deduction.

   If a fund purchases the  securities of certain  foreign  investment  funds or
trusts called passive foreign investment companies (PFIC),  capital gains on the
sale of such  holdings  will be deemed to be ordinary  income  regardless of how
long the fund holds its  investment.  The fund also may be subject to  corporate
income tax and an interest charge on certain  dividends and capital gains earned
from  these  investments,  regardless  of  whether  such  income  and  gains are
distributed to shareholders. In the alternative, the fund may elect to recognize
cumulative gains on such  investments and distribute them to  shareholders.  Any
distribution attributable to a PFIC is characterized as ordinary income.

   If you have not complied with certain provisions of the Internal Revenue Code
and  Regulations,  either  American  Century or your financial  intermediary  is
required by federal law to withhold and remit 31% of reportable  payments (which
may include dividends,  capital gains distributions and redemptions) to the IRS.
Those regulations  require you to certify that the Social Security number or tax
identification number you provide is correct and that you are not subject to 31%
withholding for previous  under-reporting  to the IRS. You will be asked to make
the appropriate certification on your application.  Payments reported by us that
omit your Social Security number or tax identification number will subject us to
a penalty  of $50,  which will be charged  against  your  account if you fail to
provide  the  certification  by  the  time  the  report  is  filed,  and  is not
refundable.

   Redemption  of shares of a fund  (including  redemptions  made in an exchange
transaction)  will be a taxable  transaction for federal income tax purposes and
shareholders  generally  will  recognize  gain or loss in an amount equal to the
difference between the basis of the shares and the amount received. If a loss is
realized on the redemption of fund shares,  the  reinvestment in additional fund
shares within 30 days before or after the redemption may be subject to the "wash
sale" rules of the Code,  resulting in a postponement of the recognition of such
loss for federal income tax purposes.

STATE AND LOCAL TAXES

   Distributions  also may be subject to state and local taxes, even if all or a
substantial  part  of such  distributions  are  derived  from  interest  on U.S.
government  obligations  which,  if you received them directly,  would be exempt
from state income tax. However, most but not all states allow this tax exemption
to pass  through  to fund  shareholders  when a fund pays  distributions  to its
shareholders.  You should  consult your tax advisor about the tax status of such
distributions in your own state.

HOW FUND PERFORMANCE INFORMATION IS CALCULATED

   The funds may quote  performance  in various ways.  Fund  performance  may be
shown by presenting one or more performance  measurements,  including cumulative
total return, average annual total return or yield.

   All performance  information  advertised by the funds is historical in nature
and is not intended to represent or guarantee future results.  The value of fund
shares when redeemed may be more or less than their original cost.

   Total returns quoted in advertising and sales literature  reflect all aspects
of a fund's return,  including the effect of  reinvesting  dividends and capital
gain distributions (if any) and any change in the fund's NAV during the period.

   Average  annual total  returns are  calculated by  determining  the growth or
decline in value of a  hypothetical  historical  investment  in a fund  during a
stated period and then calculating the annually compounded  percentage rate that
would have  produced  the same  result if the rate of growth or decline in value
had been constant  throughout the period. For example, a cumulative total return
of 100% over 10 years would produce an average annual return of 7.18%,  which is
the steady annual rate that would equal 100% growth on a compounded  basis in 10
years.  While average  annual total returns are a convenient  means of comparing
investment alternatives, investors should realize that the funds' performance is
not constant over time,  but changes from year to year,  and that average annual
total  returns  represent  averaged  figures as  opposed to actual  year-to-year
performance.

   In addition to average annual total returns,  each fund may quote  unaveraged
or  cumulative  total  returns  reflecting  the  simple  change  in  value of an
investment over a stated period,  including  periods other than one, five and 10
years.  Average annual and cumulative total returns may be quoted as percentages
or as dollar amounts and may be calculated for a single investment,  a series of
investments,  or a series of redemptions over any time period. Total returns may
be broken down into their  components of income and capital  (including  capital
gains and  changes  in share  price) to  illustrate  the  relationship  of these
factors and their contributions to total return.

   As new funds,  performance  information  for the funds is not available as of
the date of this Statement of Additional Information.

PERFORMANCE COMPARISONS

   The funds'  performance  may be compared with the performance of other mutual
funds  tracked by mutual  fund rating  services or with other  indices of market
performance.  This may include  comparisons with funds that, unlike the American
Century funds, are sold with a sales charge or deferred sales charge. Sources of
economic  data that may be used for such  comparisons  may include,  but are not
limited to: U.S. Treasury bill, note and bond yields,  money market fund yields,
U.S.  government debt and percentage held by foreigners,  the U.S. money supply,
net  free  reserves,  and  yields  on  current-coupon  GNMAs  (source:  Board of
Governors of the Federal Reserve  System);  the federal funds and discount rates
(source:  Federal  Reserve  Bank of New York);  yield  curves for U.S.  Treasury
securities and AA/AAA-rated  corporate  securities (source:  Bloomberg Financial
Markets);  yield curves for AAA-rated,  tax-free municipal  securities  (source:
Telerate);  yield curves for foreign government  securities (sources:  Bloomberg
Financial  Markets and Data  Resources,  Inc.);  total  returns on foreign bonds
(source:  J.P.  Morgan  Securities  Inc.);  various U.S. and foreign  government
reports;  the junk bond market (source:  Data Resources,  Inc.); the CRB Futures
Index  (source:  Commodity  Index Report);  the price of gold  (sources:  London
a.m./p.m.  fixing and New York Comex Spot Price); rankings of any mutual fund or
mutual fund category tracked by Lipper,  Inc. or Morningstar,  Inc.; mutual fund
rankings published in major, nationally distributed  periodicals;  data provided
by the Investment Company Institute; Ibbotson Associates,  Stocks, Bonds, Bills,
and  Inflation;  major  indices of stock  market  performance;  and  indices and
historical data supplied by major  securities  brokerage or investment  advisory
firms.  The funds  also may  utilize  reprints  from  newspapers  and  magazines
furnished by third parties to illustrate  historical  performance  or to provide
general information about the funds.

PERMISSIBLE ADVERTISING INFORMATION

   From time to time,  the  funds  may,  in  addition  to any other  permissible
information,  include the  following  types of  information  in  advertisements,
supplemental  sales literature and reports to  shareholders:  (1) discussions of
general economic or financial principles (such as the effects of compounding and
the benefits of dollar-cost  averaging);  (2)  discussions  of general  economic
trends;  (3)  presentations of statistical data to supplement such  discussions;
(4)  descriptions of past or anticipated  portfolio  holdings for one or more of
the funds;  (5)  descriptions  of investment  strategies  for one or more of the
funds;  (6)  descriptions  or  comparisons  of various  savings  and  investment
products  (including,  but  not  limited  to,  qualified  retirement  plans  and
individual  stocks and  bonds),  which may or may not  include  the  funds;  (7)
comparisons of investment products (including the funds) with relevant market or
industry  indices  or other  appropriate  benchmarks;  (8)  discussions  of fund
rankings or ratings by recognized  rating  organizations;  and (9)  testimonials
describing  the  experience  of persons who have  invested in one or more of the
funds. The funds also may include calculations, such as hypothetical compounding
examples,  which describe  hypothetical  investment  results.  Such  performance
examples will be based on an express set of  assumptions  and are not indicative
of the performance of any of the funds.

MULTIPLE CLASS PERFORMANCE ADVERTISING

   Pursuant to the Multiple Class Plan, the funds may issue  additional  classes
of existing  funds or introduce  new funds with multiple  classes  available for
purchase.  To the extent a new class is added to an existing  fund,  the advisor
may, in compliance with SEC and NASD rules,  regulations and guidelines,  market
the new class of shares  using the  historical  performance  information  of the
original class of shares. When quoting performance information for the new class
of shares for  periods  prior to the first full  quarter  after  inception,  the
original class'  performance will be restated to reflect the expenses of the new
class,  and for periods  after the first full quarter  after  inception,  actual
performance of the new class will be used.

More information about the funds is contained in these documents

Annual and Semiannual Reports

   These contain more  information  about the funds'  investments and the market
conditions  and investment  strategies  that  significantly  affected the funds'
performance  during the most recent  fiscal  period.  The annual and  semiannual
reports are  incorporated  by reference into this SAI. This means that these are
legally part of this SAI.

   You can  receive a free copy of the annual and  semiannual  reports,  and ask
questions about the funds and your accounts,  by contacting  American Century at
the address or telephone numbers listed below.

   If you own or are considering purchasing fund shares through

   o  an employer-sponsored retirement plan

   o  a bank

   o  a broker-dealer

   o  an insurance company

   o  another financial intermediary

you can receive the annual and semiannual reports directly from them.

   You also can get information about the funds from the Securities and Exchange
Commission (SEC).

   o In person               SEC Public Reference Room
                             Washington, D.C.
                             Call 1-800-SEC-0330 for location and hours.
   o On the Internet         www.sec.gov
   o By mail                 SEC Public Reference Section
                             Washington, D.C.
                             20549-6009
                             (The SEC will charge a
                             fee for copying the
                             documents.)


   Investment Company Act File No. 811-0816

   American Century Investments
   P.O. Box 419200
   Kansas City, Missouri 64141-6200

   SH-PRS-xxxxx   9911
<PAGE>
PART C.   OTHER INFORMATION.

ITEM 23.  Exhibits  (all  exhibits  not filed  herewith  are being  incorporated
          herein by reference)


     (a)  (1)  Articles of Incorporation of Twentieth Century  Investors,  Inc.,
               dated June 26,  1990  (filed  electronically  as  Exhibit  b1a to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (2)  Articles of Amendment of Twentieth Century Investors, Inc., dated
               November  19,  1990  (filed  electronically  as  Exhibit  b1b  to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (3)  Articles  of Merger  of  Twentieth  Century  Investors,  Inc.,  a
               Maryland  corporation and Twentieth  Century  Investors,  Inc., a
               Delaware   corporation,    dated   February   22,   1991   (filed
               electronically as Exhibit b1c to Post-Effective  Amendment No. 73
               on Form N-1A on February 29, 1996).

          (4)  Articles of Amendment of Twentieth Century Investors, Inc., dated
               August  10,  1993  (filed   electronically   as  Exhibit  b1d  to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (5)  Articles  Supplementary  of Twentieth  Century  Investors,  Inc.,
               dated September 3, 1993 (filed  electronically  as Exhibit b1e to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (6)  Articles  Supplementary  of Twentieth  Century  Investors,  Inc.,
               dated  April 24,  1995  (filed  electronically  as Exhibit b1f to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (7)  Articles  Supplementary  of Twentieth  Century  Investors,  Inc.,
               dated  October 11, 1995 (filed  electronically  as Exhibit b1g to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (8)  Articles  Supplementary  of Twentieth  Century  Investors,  Inc.,
               dated  January 22, 1996 (filed  electronically  as Exhibit b1h to
               Post-Effective  Amendment  No.  73 on Form N-1A on  February  29,
               1996).

          (9)  Articles  Supplementary  of Twentieth  Century  Investors,  Inc.,
               dated  March 11,  1996  (filed  electronically  as Exhibit b1i to
               Post-Effective Amendment No. 75 on Form N-1A on June 14, 1996).

          (10) Articles Supplementary of Twentieth Century Investors, Inc. dated
               September 9, 1996 is included herein.

          (11) Articles of Amendment of Twentieth Century Investors, Inc., dated
               December  2,  1996  (filed   electronically  as  Exhibit  b1j  to
               Post-Effective  Amendment  No.  76 on Form N-1A on  February  28,
               1997).

          (12) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated  December 2, 1996 (filed  electronically  as Exhibit b1k to
               Post-Effective  Amendment  No.  76 on Form N-1A on  February  28,
               1997).

          (13) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated July 28,  1997  (filed  electronically  as  Exhibit  b1l to
               Post-Effective  Amendment  No.  78 on Form N-1A on  February  26,
               1998).

          (14) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated November 28, 1997 (filed  electronically  as Exhibit a13 to
               Post-Effective  Amendment  No.  83 on Form N-1A on  February  26,
               1999).

          (15) Certificate of Correction to Articles  Supplementary  of American
               Century  Mutual  Funds,  Inc.,  dated  December  18,  1997 (filed
               electronically as Exhibit a14 to Post-Effective  Amendment No. 83
               on Form N-1A on February 26, 1999).

          (16) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated December 18, 1997 (filed  electronically  as Exhibit b1m to
               Post-Effective  Amendment  No.  78 on Form N-1A on  February  26,
               1998).

          (17) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated  January 25, 1999 (filed  electronically  as Exhibit a16 to
               Post-Effective  Amendment  No.  83 on Form N-1A on  February  26,
               1999).

          (18) Articles  Supplementary of American  Century Mutual Funds,  Inc.,
               dated February 16, 1999 (filed  electronically  as Exhibit a17 to
               Post-Effective  Amendment  No.  83 on Form N-1A on  February  26,
               1999).

          (19) Articles Supplementary of American Century Mutual Funds, Inc. (to
               be filed by amendment).

     (b)  (1)  By-laws   of   Twentieth   Century    Investors,    Inc.   (filed
               electronically as Exhibit b2 to  Post-Effective  Amendment No. 73
               on Form N-1A on February 29, 1996).

          (2)  Amendment to Bylaws of American Century Mutual Funds, Inc. (filed
               electronically as Exhibit b2b to  Post-Effective  Amendment No. 9
               on Form N-1A of American Century Capital  Portfolios,  Inc., File
               No. 33-64872, on February 17, 1998).

     (c)  Registrant hereby incorporates by reference, as though set forth fully
          herein,  Article  Fifth,  Article  Seventh,  and  Article  Eighth,  of
          Registrants Articles of Incorporation,  appearing as Exhibit (a)(1) to
          Post-Effective  Amendment No. 76 on Form N-1A of the  Registrant,  and
          Article  Fifth of  Registrants  Articles of  Amendment,  appearing  as
          Exhibit (a)(4) to Post-Effective  Amendment No. 76 to the Registration
          Statement on February 28, 1997;  and Sections 3, 4, 5, 6, 7, 8, 9, 10,
          11, 22, 24,  25,  30,  31,  33, 39, 45 and 46 of  Registrants  By-Laws
          appearing as Exhibit (b)(1) to Post-Effective Amendment No. 73 on Form
          N-1A,  and Sections 25, 30 & 31 of  Registrants  By-Laws  appearing as
          Exhibit  (b)(2)  to  Post-Effective  Amendment  No. 9 on Form  N-1A of
          American Century Capital Portfolios, Inc., Commission No. 33-64872.

     (d)  (1)  Management  Agreement between American Century Mutual Funds, Inc.
               and American Century Investment Management,  Inc. dated August 1,
               1997  (filed  electronically  as  Exhibit  b5  to  Post-Effective
               Amendment No. 78 on Form N-1A on February 26, 1998).

          (2)  Addendum to Management  Agreement between American Century Mutual
               Funds,  Inc. and American Century  Investment  Management,  Inc.,
               dated  February 16, 1999 (filed  electronically  as Exhibit d2 to
               Post-Effective  Amendment  No.  83 on Form N-1A on  February  26,
               1999).

          (3)  Addendum to Management  Agreement between American Century Mutual
               Funds, Inc. and American Century Investment Management,  Inc. (to
               be filed by amendment).

     (e)  (1)  Distribution  Agreement  between  American  Century Mutual Funds,
               Inc. and Funds  Distributor,  Inc.  dated January 15, 1998 (filed
               electronically as Exhibit b6 to  Post-Effective  Amendment No. 28
               on Form N-1A of American Century Target  Maturities  Trust,  File
               No. 2-94608, on January 30, 1998).

          (2)  Amendment No. 1 to the  Distribution  Agreement  between American
               Century Mutual Funds, Inc. and Funds Distributor, Inc. dated June
               1, 1998 (filed  electronically  as Exhibit b6b to  Post-Effective
               Amendment  No.  11 to  the  Registration  Statement  of  American
               Century Capital Portfolios,  Inc., File No. 33-64872, on June 26,
               1998).

          (3)  Amendment No. 2 to the  Distribution  Agreement  between American
               Century  Mutual Funds,  Inc. and Funds  Distributor,  Inc.  dated
               December  1,  1998  (filed   electronically  as  Exhibit  b6c  to
               Post-Effective  Amendment No. 12 to the Registration Statement of
               American Century World Mutual Funds, Inc., File No. 33-39242,  on
               November 13, 1998).

          (4)  Amendment No. 3 to the  Distribution  Agreement  between American
               Century  Mutual Funds,  Inc. and Funds  Distributor,  Inc.  dated
               January  29,  1999  (filed   electronically   as  Exhibit  e4  to
               Post-Effective  Amendment No. 24 to the Registration Statement of
               American Century Variable Portfolios, Inc., File No. 33-14567, on
               January 15, 1999).

          (5)  Amendment No. 4 to the  Distribution  Agreement  between American
               Century Mutual Funds, Inc. and Funds Distributor, Inc. dated July
               30, 1999 (filed  electronically  as Exhibit e5 to  Post-Effective
               Amendment  No.  16 to  the  Registration  Statement  of  American
               Century Capital Portfolios,  Inc., File No. 33-64872, on July 29,
               1999).

          (6)  Amendment No. 5 to the  Distribution  Agreement  between American
               Century  Mutual Funds,  Inc. and Funds  Distributor,  Inc. (to be
               filed by amendment).

     (f)  Not Applicable.

     (g)  (1)  Global Custody Agreement between The Chase Manhattan Bank and the
               Twentieth  Century and Benham funds,  dated August 9, 1996 (filed
               electronically as Exhibit 8 to Post-Effective Amendment No. 31 on
               Form N-1A of American Century  Government  Income Trust, File No.
               2-99222, on February 7, 1997).

          (2)  Master  Agreement  between  Commerce  Bank,  N.A.  and  Twentieth
               Century   Services,   Inc.   dated   January   22,   1997  (filed
               electronically as Exhibit 8e to  Post-Effective  Amendment No. 76
               on Form N-1A on February 28, 1997).

     (h)  (1)  Transfer Agency Agreement between  Twentieth  Century  Investors,
               Inc. and Twentieth  Century  Services,  Inc.  dated March 1, 1991
               (filed  electronically as Exhibit 9 to  Post-Effective  Amendment
               No. 76 on Form N-1A on February 28, 1997).

          (2)  Credit  Agreement  between  American  Century Funds and The Chase
               Manhattan Bank, as Administrative  Agent dated as of December 18,
               1998  (filed  electronically  as  Exhibit  h2  to  Post-Effective
               Amendment  No.  37 to  the  Registration  Statement  of  American
               Century  Government  Income  Trust  on  May  7,  1999,  File  No.
               2-99222).

     (i)  Opinion and Consent of Counsel (to be filed by amendment).

     (j)  Power of Attorney  dated  February 19, 1999 (filed  electronically  as
          Exhibit j2 to Post-Effective Amendment No. 83 on Form N-1A on February
          26, 1999).

     (k)  Not applicable.

     (l)  Not applicable.

     (m)  (1)  Master  Distribution  and Shareholder  Services Plan of Twentieth
               Century Capital  Portfolios,  Inc.,  Twentieth Century Investors,
               Inc.,  Twentieth  Century Strategic Asset  Allocations,  Inc. and
               Twentieth  Century World  Investors,  Inc.  (Advisor Class) dated
               September  3,  1996  (filed  electronically  as  Exhibit  b15a to
               Post-Effective  Amendment No. 9 on Form N-1A of American  Century
               Capital  Portfolios,  Inc.,  File No.  33-64872,  on February 17,
               1998).

          (2)  Amendment No. 1 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor  Class)  dated June 13,  1997 (filed  electronically  as
               Exhibit b15d to  Post-Effective  Amendment No. 77 on Form N-1A on
               July 17, 1997).

          (3)  Amendment No. 2 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor Class) dated September 30, 1997 (filed electronically as
               Exhibit b15c to  Post-Effective  Amendment No. 78 on Form N-1A on
               February 26, 1998).

          (4)  Amendment No. 3 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor  Class)  dated June 30,  1998 (filed  electronically  as
               Exhibit b15e to  Post-Effective  Amendment No. 11 on Form N-1A of
               American Century Capital Portfolios,  Inc., File No. 33-64872, on
               June 26, 1998).

          (5)  Amendment No. 4 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor Class) dated November 13, 1998 (filed  electronically as
               Exhibit b15e to  Post-Effective  Amendment No. 12 on Form N-1A of
               American Century World Mutual Funds, Inc., File No. 33-39242,  on
               November 13, 1998).

          (6)  Amendment No. 5 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor Class) dated February 16, 1999 (filed  electronically as
               Exhibit  m6 to  Post-Effective  Amendment  No. 83 on Form N-1A on
               February 26, 1999).

          (7)  Amendment No. 6 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor  Class)  dated July 30,  1999 (filed  electronically  as
               Exhibit  m7 to  Post-Effective  Amendment  No. 16 on Form N-1A of
               American Century Capital Portfolios,  Inc., File No. 33-64872, on
               July 29, 1999).

          (8)  Amendment No. 7 to Master  Distribution and Shareholder  Services
               Plan of  American  Century  Capital  Portfolios,  Inc.,  American
               Century Mutual Funds,  Inc.,  American  Century  Strategic  Asset
               Allocations,  Inc. and American Century World Mutual Funds,  Inc.
               (Advisor Class) (to be filed by amendment).

          (9)  Shareholder   Services   Plan  of   Twentieth   Century   Capital
               Portfolios,  Inc.,  Twentieth Century Investors,  Inc., Twentieth
               Century Strategic Asset  Allocations,  Inc. and Twentieth Century
               World  Investors,  Inc.  (Service  Class) dated September 3, 1996
               (filed electronically as Exhibit b15b to Post-Effective Amendment
               No. 9 on Form N-1A of American Century Capital Portfolios,  Inc.,
               File No. 33-64872, on February 17, 1998).

     (n)  Not applicable.

     (o)  (1)  Multiple  Class Plan of  Twentieth  Century  Capital  Portfolios,
               Inc.,  Twentieth  Century  Investors,   Inc.,  Twentieth  Century
               Strategic  Asset  Allocations,  Inc. and Twentieth  Century World
               Investors,  Inc. dated September 3, 1996 (filed electronically as
               Exhibit  b18b  to  Post-Effective  Amendment  9 on  Form  N-1A of
               American Century Capital Portfolios,  Inc., File No. 33-64872, on
               February 17, 1998).

          (2)  Amendment  No.  1 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century  World  Mutual  Funds,  Inc.  dated June 13,  1997 (filed
               electronically as Exhibit b18b to Post-Effective Amendment No. 77
               on Form N-1A on July 17, 1997).

          (3)  Amendment  No.  2 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century World Mutual Funds,  Inc. dated September 30, 1997 (filed
               electronically as Exhibit b18c to Post-Effective Amendment No. 78
               on Form N-1A on February 26, 1998).

          (4)  Amendment  No.  3 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century  World  Mutual  Funds,  Inc.  dated June 30,  1998 (filed
               electronically as Exhibit b18d to Post-Effective Amendment No. 11
               on Form N-1A of American Century Capital  Portfolios,  Inc., File
               No. 33-64872, on June 26, 1998).

          (5)  Amendment  No.  4 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century World Mutual Funds,  Inc.  dated November 13, 1998 (filed
               electronically as Exhibit b18e to Post-Effective Amendment No. 12
               on Form N-1A of American  Century World Mutual Funds,  Inc., File
               No. 33-39242, on November 13, 1998).

          (6)  Amendment  No.  5 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century  World Mutual Funds,  Inc.  dated January 29, 1999 (filed
               electronically as Exhibit b18f to Post-Effective Amendment No. 14
               on Form N-1A of American Century Capital  Portfolios,  Inc., File
               No. 33-64872, on December 29, 1998).

          (7)  Amendment  No.  6 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century  World  Mutual  Funds,  Inc.  dated July 30,  1999 (filed
               electronically as Exhibit o7 to  Post-Effective  Amendment No. 16
               on Form N-1A of American Century Capital  Portfolios,  Inc., File
               No. 33-64872, on July 29, 1999).

          (8)  Amendment  No.  7 to  Multiple  Class  Plan of  American  Century
               Capital  Portfolios,  Inc.,  American Century Mutual Funds, Inc.,
               American Century Strategic Asset  Allocations,  Inc. and American
               Century World Mutual Funds, Inc. (to be filed by amendment).

ITEM 24. Persons  Controlled  by or Under Common  Control with  Registrant.

     Not Applicable.

ITEM 25. Indemnification.

     The  Corporation  is a Maryland  corporation.  Section 2-418 of the General
     Corporation Law of Maryland allows a Maryland  corporation to indemnify its
     directors,  officers,  employees and agents to the extent  provided in such
     statute.

     Article   Eighth   of  the   Articles   of   Incorporation   requires   the
     indemnification  of the corporation's  directors and officers to the extent
     permitted  by the  General  Corporation  Law of  Maryland,  the  Investment
     Company Act and all other applicable laws.

     The registrant has purchased an insurance  policy insuring its officers and
     directors against certain liabilities which such officers and directors may
     incur while acting in such  capacities and providing  reimbursement  to the
     registrant  for sums which it may be  permitted  or  required to pay to its
     officers and directors by way of indemnification  against such liabilities,
     subject  in  either   case  to   clauses   respecting   deductibility   and
     participation.

ITEM 26. Business and Other Connections of Investment Advisor.

     None.

ITEM 27. Principal Underwriters.

(a)  Funds Distributor,  Inc. (the "Distributor") acts as principal  underwriter
     for the following investment companies.

American Century California Tax-Free and Municipal Funds
American Century Capital Portfolios, Inc.
American Century Government Income Trust
American Century International Bond Funds
American Century Investment Trust
American Century Municipal Trust
American Century Mutual Funds, Inc.
American Century Premium Reserves, Inc.
American Century Quantitative Equity Funds
American Century Strategic Asset Allocations, Inc.
American Century Target Maturities Trust
American Century Variable Portfolios, Inc.
American Century World Mutual Funds, Inc.
The Brinson Funds
Dresdner RCM Capital Funds, Inc.
Dresdner RCM Equity Funds, Inc.
J.P. Morgan Institutional Funds
J.P. Morgan Funds
JPM Series Trust
JPM Series Trust II
LaSalle Partners Funds, Inc.
Kobrick Investment Trust
Merrimac Series
Monetta Fund, Inc.
Monetta Trust
The Montgomery Funds I
The Montgomery Funds II
The Munder Framlington Funds Trust
The Munder Funds Trust
The Munder Funds, Inc.
National Investors Cash Management Fund, Inc.
Orbitex Group of Funds
SG Cowen Funds, Inc.
SG Cowen Income + Growth Fund, Inc.
SG Cowen Standby Reserve Fund, Inc.
SG Cowen Standby Tax-Exempt Reserve Fund, Inc.
SG Cowen Series Funds, Inc.
St. Clair Funds, Inc.
The Skyline Funds
Waterhouse Investors Family of Funds, Inc.
WEBS Index Fund, Inc.

     The Distributor is registered  with the Securities and Exchange  Commission
as a  broker-dealer  and is a member of the National  Association  of Securities
Dealers.  The  Distributor  is located at 60 State Street,  Suite 1300,  Boston,
Massachusetts 02109. The Distributor is an indirect  wholly-owned  subsidiary of
Boston  Institutional  Group,  Inc., a holding company all of whose  outstanding
shares are owned by key employees.

(b) The following is a list of the executive officers, directors and partners of
the Distributor:

<TABLE>
<CAPTION>
Name and Principal Business Address*  Positions and Offices with          Positions and Offices with
                                      Underwriter                         Registrant

<S>                                  <C>                                 <C>
Marie E. Connolly                     Director, President and Chief       none
                                      Executive Officer

George A. Rio                         Executive Vice President            President, Principal Executive
                                                                          and Principal Financial Officer

Donald R. Roberson                    Executive Vice President            none

William S. Nichols                    Executive Vice President            none

Margaret W. Chambers                  Senior Vice President, General      None
                                      Counsel, Chief Compliance
                                      Officer, Secretary and Clerk

Joseph F. Tower, III                  Director, Senior Vice President,    None
                                      Treasurer and Chief Financial
                                      Officer

Paula R. David                        Senior Vice President               None

Gary S. MacDonald                     Senior Vice President               None

Judith K. Benson                      Senior Vice President               None

William J. Nutt                       Chairman and Director               None
- --------------------
* All addresses are 60 State Street, Suite 1300, Boston, Massachusetts 02109
</TABLE>

(c)  Not applicable.

ITEM 28. Location of Accounts and Records.

     All  accounts,  books and other  documents  required  to be  maintained  by
     Section 31(a) of the 1940 Act, and the rules promulgated thereunder, are in
     the possession of American  Century Mutual Funds,  Inc.,  American  Century
     Services Corporation and American Century Investment Management,  Inc., all
     located at American Century Tower, 4500 Main Street, Kansas City, Missouri
     64111.

ITEM 29. Management Services

     Not Applicable.

ITEM 30. Undertakings.

     Not Applicable.
<PAGE>
                                   SIGNATURES

    Pursuant  to  the  requirements  of  the  Securities  Act of  1933  and  the
Investment Company Act of 1940, the Registrant certifies that it has duly caused
this  Post-Effective  Amendment  No.  85 to be  signed  on  its  behalf  by  the
undersigned,  thereunto duly  authorized,  in the City of Kansas City,  State of
Missouri on the 1st day of September, 1999.

                                       American Century Mutual Funds, Inc.
                                       (Registrant)

                                       By: /*/George A. Rio
                                       George A. Rio
                                       President and Principal Executive Officer

    Pursuant  to  the   requirements   of  the  Securities  Act  of  1933,  this
Post-Effective  Amendment No. 85 has been signed below by the following  persons
in the capacities and on the dates indicated.

Signature                   Title                              Date
- ---------                   -----                              ----

*George A. Rio              President, Principal Executive     September 1, 1999
George A. Rio               and Principal Financial Officer

*Maryanne Roepke            Vice President and Treasurer       September 1, 1999
Maryanne Roepke

*James E. Stowers, Jr.      Chairman of the Board and          September 1, 1999
James E. Stowers, Jr.       Director

*James E. Stowers III       Director                           September 1, 1999
James E. Stowers III

*Thomas A. Brown            Director                           September 1, 1999
Thomas A. Brown

*Robert W. Doering, M.D.    Director                           September 1, 1999
Robert W. Doering, M.D.

*Andrea C. Hall, Ph.D.      Director                           September 1, 1999
Andrea C. Hall, Ph.D.

*Donald H. Pratt            Director                           September 1, 1999
Donald H. Pratt

*Lloyd T. Silver, Jr.       Director                           September 1, 1999
Lloyd T. Silver, Jr.

*M. Jeannine Strandjord     Director                           September 1, 1999
M. Jeannine Strandjord

*D. D. (Del) Hock           Director                           September 1, 1999
D. D. (Del) Hock

*By /s/Charles A. Etherington
    Charles A. Etherington
    Attorney-in-Fact

                                  EXHIBIT INDEX


EXHIBIT      DESCRIPTION OF DOCUMENT
NUMBER

EX-99.a1     Articles of Incorporation  of Twentieth  Century  Investors,  Inc.,
             dated  June  26,  1990  (filed  as  Exhibit  b1a of  Post-Effective
             Amendment No. 73 to the Registration  Statement on Form N-1A of the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a2     Articles of Amendment of Twentieth Century  Investors,  Inc., dated
             November 19, 1990 (filed as Exhibit b1b of Post-Effective Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a3     Articles of Merger of Twentieth Century Investors, Inc., a Maryland
             corporation  and  Twentieth  Century  Investors,  Inc.,  a Delaware
             corporation,  dated  February  22,  1991  (filed as Exhibit  b1c of
             Post-Effective  Amendment No. 73 to the  Registration  Statement on
             Form N-1A of the Registrant,  File No.  2-14213,  filed on February
             29, 1996, and incorporated herein by reference).

EX-99.a4     Articles of Amendment of Twentieth Century  Investors,  Inc., dated
             August 10, 1993 (filed as Exhibit b1d of  Post-Effective  Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a5     Articles Supplementary of Twentieth Century Investors,  Inc., dated
             September 3, 1993 (filed as Exhibit b1e of Post-Effective Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a6     Articles Supplementary of Twentieth Century Investors,  Inc., dated
             April 28, 1995 (filed as Exhibit  b1f of  Post-Effective  Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a7     Articles  Supplementary  of  Twentieth  Century  Investors,   dated
             October 11, 1995 (filed as Exhibit b1g of Post-Effective  Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a8     Articles Supplementary of Twentieth Century Investors,  Inc., dated
             January 22, 1996 (filed as Exhibit b1h of Post-Effective  Amendment
             No.  73  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  29,  1996,  and
             incorporated herein by reference).

EX-99.a9     Articles Supplementary of Twentieth Century Investors,  Inc., dated
             March 11, 1996 (filed as Exhibit  b1i of  Post-Effective  Amendment
             No.  75  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,   File  No.  2-14213,  filed  on  June  14,  1996,  and
             incorporated herein by reference).

EX-99.a10    Articles  Supplementary of Twentieth Century Investors,  Inc. dated
             September 9, 1996 is included herein.

EX-99.a11    Articles of Amendment of Twentieth  Century  Investors,  Inc. dated
             December 2, 1996 (filed as Exhibit b1j of Post-Effective  Amendment
             No.  76  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  28,  1997,  and
             incorporated herein by reference).

EX-99.a12    Articles Supplementary of American Century Mutual Funds, Inc. dated
             December 2, 1996 (filed as Exhibit b1k of Post-Effective  Amendment
             No.  76  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  28,  1997,  and
             incorporated herein by reference).

EX-99.a13    Articles Supplementary of American Century Mutual Funds, Inc. dated
             July 28, 1997 (filed as Exhibit b1l of Post-Effective Amendment No.
             78 to the  Registration  Statement on Form N-1A of the  Registrant,
             File No.  2-14213,  filed on February  26, 1998,  and  incorporated
             herein by reference).

EX-99.a14    Articles Supplementary of American Century Mutual Funds, Inc. dated
             November 28, 1997 (filed as Exhibit a13 of Post-Effective Amendment
             No.  83  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  26,  1999,  and
             incorporated herein by reference).

EX-99.a15    Certificate  of  Correction to Articles  Supplementary  of American
             Century  Mutual  Funds,  Inc.  dated  December  18,  1997 (filed as
             Exhibit a14 of Post-Effective  Amendment No. 83 to the Registration
             Statement on Form N-1A of the Registrant,  File No. 2-14213,  filed
             on February 26, 1999, and incorporated herein by reference).

EX-99.a16    Articles Supplementary of American Century Mutual Funds, Inc. dated
             December 18, 1997 (filed as Exhibit b1m of Post-Effective Amendment
             No.  78  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  (filed on February 26,  1998,  and
             incorporated herein by reference).

EX-99.a17    Articles Supplementary of American Century Mutual Funds, Inc. dated
             January 25, 1999 (filed as Exhibit a16 of Post-Effective  Amendment
             No.  83  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  26,  1999,  and
             incorporated herein by reference).

EX-99.a18    Articles Supplementary of American Century Mutual Funds, Inc. dated
             February 16, 1999 (filed as Exhibit a17 of Post-Effective Amendment
             No.  83  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  26,  1999,  and
             incorporated herein by reference).

EX-99.a19    Articles  Supplementary of American Century Mutual Funds,  Inc. (to
             be filed by amendment).

EX-99.b1     Bylaws of Twentieth Century Investors, Inc. (filed as Exhibit b2 of
             Post-Effective  Amendment No. 73 to the  Registration  Statement on
             Form N-1A of the Registrant,  File No.  2-14213,  filed on February
             29, 1996, and incorporated herein by reference).

EX-99.b2     Amendment of Bylaws of American  Century Mutual Funds,  Inc. (filed
             as  Exhibit  b2b  of   Post-Effective   Amendment   No.  9  to  the
             Registration  Statement  on Form N-1A of American  Century  Capital
             Portfolios,  Inc., File No.  33-64872,  filed on February 17, 1998,
             and incorporated herein by reference).

EX-99.d1     Management  Agreement  between American Century Mutual Funds,  Inc.
             and American Century  Investment  Management,  Inc. dated August 1,
             1997 (filed as Exhibit b5 of Post-Effective Amendment No. 78 to the
             Registration  Statement  on Form N-1A of the  Registrant,  File No.
             2-14213,  filed on February 26, 1998,  and  incorporated  herein by
             reference).

EX-99.d2     Addendum to Management  Agreement  between  American Century Mutual
             Funds, Inc. and American Century Investment Management,  Inc. dated
             February 16, 1999 (filed as Exhibit d2 of Post-Effective  Amendment
             No.  83  to  the  Registration   Statement  on  Form  N-1A  of  the
             Registrant,  File No.  2-14213,  filed on February  26,  1999,  and
             incorporated herein by reference).

EX-99.d3     Addendum to Management  Agreement  between  American Century Mutual
             Funds, Inc. and American Century Investment Management, Inc. (to be
             filed by amendment).

EX-99.e1     Distribution  Agreement between American Century Mutual Funds, Inc.
             and Funds Distributor,  dated January 15, 1998 (filed as Exhibit b6
             of Post-Effective Amendment No. 30 to the Registration Statement on
             Form N-1A of American  Century Target  Maturities  Trust,  File No.
             2-94608,  filed on January 30,  1998,  and  incorporated  herein by
             reference).

EX-99.e2     Amendment  No. 1 to the  Distribution  Agreement  between  American
             Century Mutual Funds, Inc. and Funds  Distributor,  Inc. dated June
             1, 1998 (filed as Exhibit b6b of Post-Effective Amendment No. 11 to
             the Registration Statement on Form N-1A of American Century Capital
             Portfolios,  Inc., File No.  33-64872,  filed on June 26, 1998, and
             incorporated herein by reference).

EX-99.e3     Amendment  No. 2 to the  Distribution  Agreement  between  American
             Century  Mutual  Funds,  Inc.  and Funds  Distributor,  Inc.  dated
             December 1, 1998 (filed as Exhibit b6c of Post-Effective  Amendment
             No.  12 to the  Registration  Statement  on Form  N-1A of  American
             Century  World Mutual  Funds,  Inc.,  File No.  33-39242,  filed on
             November 13, 1998, and incorporated herein by reference).

EX-99.e4     Amendment  No. 3 to the  Distribution  Agreement  between  American
             Century  Mutual  Funds,  Inc.  and Funds  Distributor,  Inc.  dated
             January 29, 1999 (filed as Exhibit e4 of  Post-Effective  Amendment
             No.  24 to the  Registration  Statement  on Form  N-1A of  American
             Century  Variable  Portfolios,  Inc., File No.  33-14567,  filed on
             January 15, 1999, and incorporated herein by reference).

EX-99.e5     Amendment  No. 4 to the  Distribution  Agreement  between  American
             Century Mutual Funds, Inc. and Funds  Distributor,  Inc. dated July
             30, 1999 (filed as Exhibit e5 of Post-Effective Amendment No. 16 to
             the Registration Statement on Form N-1A of American Century Capital
             Portfolios,  Inc., File No.  33-64872,  filed on July 29, 1999, and
             incorporated herein by reference).

EX-99.e6     Amendment  No. 5 to the  Distribution  Agreement  between  American
             Century Mutual Funds, Inc. and Funds Distributor, Inc. (to be filed
             by amendment).

EX-99.g1     Global Custody  Agreement  between The Chase Manhattan Bank and the
             Twentieth Century and Benham funds,  dated August 9, 1996 (filed as
             Exhibit 8 of  Post-Effective  Amendment No. 31 to the  Registration
             Statement on Form N-1A of American Century Government Income Trust,
             File No.  2-99222,  filed on  February  7, 1997,  and  incorporated
             herein by reference).

EX-99.g2     Master Agreement  between Commerce Bank, N.A. and Twentieth Century
             Services,  Inc.  dated  January  22,  1997  (filed as Exhibit 8e of
             Post-Effective  Amendment No. 76 to the  Registration  Statement on
             Form N-1A of the Registrant,  File No.  2-14213,  filed on February
             28, 1997, and incorporated herein by reference).

EX-99.h1     Transfer Agency Agreement dated as of March 1, 1991, by and between
             Twentieth Century  Investors,  Inc. and Twentieth Century Services,
             Inc. (filed as Exhibit 9 of Post-Effective  Amendment No. 76 to the
             Registration  Statement  on Form N-1A of the  Registrant,  File No.
             2-14213,  filed on February 28, 1997,  and  incorporated  herein by
             reference).

EX-99.h2     Credit  Agreement  between  American  Century  Funds  and The Chase
             Manhattan  Bank, as  Administrative  Agent dated as of December 18,
             1998  (filed   electronically   as  Exhibit  h2  to  Post-Effective
             Amendment  No.  37 to the  Registration  Statement  on Form N-1A of
             American Century  Government Income Trust, File No. 2-99222,  filed
             on May 7, 1999, and incorporated herein by reference).

EX-99.i      Opinion and Consent of Counsel (to be filed by amendment).

EX-99.j      Power of Attorney  dated  February 19, 1999 (filed as Exhibit j2 of
             Post-Effective  Amendment No. 83 to the  Registration  Statement on
             Form N-1A of the Registrant,  File No.  2-14213,  filed on February
             26, 1999, and incorporated herein by reference).

EX-99.m1     Master  Distribution  and  Shareholder  Services  Plan of Twentieth
             Century Capital  Portfolios,  Inc.,  Twentieth  Century  Investors,
             Inc.,  Twentieth  Century  Strategic  Asset  Allocations,  Inc. and
             Twentieth  Century  World  Investors,  Inc.  (Advisor  Class) dated
             September  3,  1996  (filed  as  Exhibit  b15a  of   Post-Effective
             Amendment  No.  9 to the  Registration  Statement  on Form  N-1A of
             American Century Capital Portfolios, Inc., File No. 33-64872, filed
             on February 17, 1998, and incorporated herein by reference).

EX-99.m2     Amendment No. 1 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  June 13,  1997  (filed  as  Exhibit  b15d of  Post-Effective
             Amendment No. 77 to the Registration  Statement on Form N-1A of the
             Registrant,   File  No.  2-14213,  filed  on  July  17,  1997,  and
             incorporated herein by reference).

EX-99.m3     Amendment No. 2 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  September 30, 1997 (filed as Exhibit b15c of  Post-Effective
             Amendment No. 78 to the Registration  Statement on Form N-1A of the
             Registrant,  File No.  2-14213,  filed on February  26,  1998,  and
             incorporated herein by reference).

EX-99.m4     Amendment No. 3 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  June 30,  1998  (filed  as  Exhibit  b15e of  Post-Effective
             Amendment  No.  11 to the  Registration  Statement  on Form N-1A of
             American Century Capital Portfolios, Inc., File No. 33-64872, filed
             on June 26, 1998, and incorporated herein by reference).

EX-99.m5     Amendment No. 4 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  November 13, 1998 (filed as Exhibit  b15e of  Post-Effective
             Amendment  No.  12 to the  Registration  Statement  on Form N-1A of
             American Century World Mutual Funds, Inc., File No. 33-39242, filed
             on November 13, 1998, and incorporated herein by reference).

EX-99.m6     Amendment No. 5 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  February  16,  1999  (filed as Exhibit m6 of  Post-Effective
             Amendment No. 83 to the Registration  Statement on Form N-1A of the
             Registrant,  File No.  2-14213,  filed on February  26,  1999,  and
             incorporated herein by reference).

EX-99.m7     Amendment No. 6 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             dated  July  30,  1999  (filed  electronically  as  Exhibit  m7  to
             Post-Effective  Amendment  No. 16 on Form N-1A of American  Century
             Capital Portfolios,  Inc., File No. 33-64872, on July 29, 1999, and
             incorporated herein by reference).

EX-99.m8     Amendment No. 7 to Master  Distribution  and  Shareholder  Services
             Plan of American Century Capital Portfolios, Inc., American Century
             Mutual Funds,  Inc.,  American Century Strategic Asset Allocations,
             Inc. and American Century World Mutual Funds,  Inc. (Advisor Class)
             (to be filed by amendment).

EX-99.m9     Shareholder  Services Plan of Twentieth Century Capital Portfolios,
             Inc.,   Twentieth  Century  Investors,   Inc.,   Twentieth  Century
             Strategic  Asset  Allocations,  Inc. and  Twentieth  Century  World
             Investors,  Inc.  (Service Class) dated September 3, 1996 (filed as
             Exhibit b15b of Post-Effective  Amendment No. 9 to the Registration
             Statement  on Form N-1A of  American  Century  Capital  Portfolios,
             Inc.,  File  No.   33-64872,   filed  on  February  17,  1998,  and
             incorporated herein by reference).

EX-99.o1     Multiple Class Plan of Twentieth Century Capital Portfolios,  Inc.,
             Twentieth  Century  Investors,  Inc.,  Twentieth  Century Strategic
             Asset Allocations, Inc. and Twentieth Century World Investors, Inc.
             dated  September 3, 1996 (filed as Exhibit  b18b of  Post-Effective
             Amendment  No.  9 to the  Registration  Statement  on Form  N-1A of
             American Century Capital Portfolios, Inc., File No. 33-64872, filed
             on February 17, 1998, and incorporated herein by reference).

EX-99.o2     Amendment No. 1 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds, Inc. dated June 13, 1997 (filed as Exhibit b18b
             of Post-Effective Amendment No. 77 to the Registration Statement on
             Form N-1A of the Registrant,  File No.  2-14213,  filed on July 17,
             1997, and incorporated herein by reference).

EX-99.o3     Amendment No. 2 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds, Inc. dated September 30, 1997 (filed as Exhibit
             b18c  of  Post-Effective  Amendment  No.  78  to  the  Registration
             Statement on Form N-1A of the Registrant,  File No. 2-14213,  filed
             on February 26, 1998, and incorporated herein by reference).

EX-99.o4     Amendment No. 3 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds, Inc. dated June 30, 1998 (filed as Exhibit b18d
             of Post-Effective Amendment No. 11 to the Registration Statement on
             Form N-1A of American  Century Capital  Portfolios,  Inc., File No.
             33-64872,  filed on June  26,  1998,  and  incorporated  herein  by
             reference).

EX-99.o5     Amendment No. 4 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds,  Inc. dated November 13, 1998 (filed as Exhibit
             b18e  of  Post-Effective  Amendment  No.  12  to  the  Registration
             Statement  on Form N-1A of American  Century  World  Mutual  Funds,
             Inc.,  File  No.   33-39242,   filed  on  November  13,  1998,  and
             incorporated herein by reference).

EX-99.o6     Amendment No. 5 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds,  Inc.  dated January 29, 1999 (filed as Exhibit
             b18f  of  Post-Effective  Amendment  No.  14  to  the  Registration
             Statement on Form N-1A of the Registrant,  File No. 33-64872, filed
             on December 29, 1998, and incorporated herein by reference).

EX-99.o7     Amendment No. 6 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds, Inc. dated July 30, 1999 (filed  electronically
             as  Exhibit  o7  to   Post-Effective   Amendment   No.  16  to  the
             Registration  Statement  on Form N-1A of American  Century  Capital
             Portfolios,  Inc.,  File  No.  33-64872,  on  July  29,  1999,  and
             incorporated herein by reference).

EX-99.o8     Amendment No. 7 to Multiple Class Plan of American  Century Capital
             Portfolios,  Inc.,  American Century Mutual Funds,  Inc.,  American
             Century  Strategic  Asset  Allocations,  Inc. and American  Century
             World Mutual Funds, Inc. (to be filed by amendment).

                        TWENTIETH CENTURY INVESTORS, INC.

                             ARTICLES SUPPLEMENTARY

         TWENTIETH  CENTURY  INVESTORS,   INC.,  a  Maryland  corporation  whose
principal Maryland office is located in Baltimore, Maryland (the "Corporation"),
hereby certifies to the State Department of Assessments and Taxation of Maryland
that:

         FIRST: Pursuant to authority expressly vested in the Board of Directors
of the  Corporation by Article SEVENTH of the Articles of  Incorporation  of the
Corporation,  the Board of Directors of the Corporation  has duly  established a
new  series  of  shares  titled  Twentieth   Century  New   Opportunities   Fund
(hereinafter  referred to as a  "Series")  for the  Corporation's  stock and has
allocated One Hundred  Million  (100,000,000)  shares of the Eleven  Billion One
Hundred  Million  (11,100,000,000)  shares of  authorized  capital  stock of the
Corporation,  par value One Cent ($.01) per share, for an aggregate par value of
One Million Dollars  ($1,000,000)  to the new Series.  As a result of the action
taken by the  Board  of  Directors  referenced  in this  Article  FIRST of these
Articles  Supplementary,  the seventeen (17) Series of stock of the  Corporation
and the number of shares and aggregate par value of each is as follows:


SERIES                                   NUMBER OF SHARES    AGGREGATE PAR VALUE
- ------                                   ----------------    -------------------
Growth Investors                           1,000,000,000         $10,000,000
Select Investors                             500,000,000           5,000,000
Ultra Investors                            1,500,000,000          15,000,000
Vista Investors                            1,000,000,000          10,000,000
Heritage Investors                           500,000,000           5,000,000
Giftrust Investors                           200,000,000           2,000,000
Balanced Investors                           200,000,000           2,000,000
Cash Reserve                               4,000,000,000          40,000,000
U.S. Governments Short-Term                  200,000,000           2,000,000
Long-Term Bond                               200,000,000           2,000,000
Tax-Exempt Intermediate-Term                 200,000,000           2,000,000
Tax-Exempt Long-Term                         200,000,000           2,000,000
Tax Exempt Short-Term                        200,000,000           2,000,000
U.S. Governments Intermediate-Term           200,000,000           2,000,000
Limited Term Bond                            200,000,000           2,000,000
Intermediate-Term Bond                       200,000,000           2,000,000
Twentieth Century New Opportunities Fund     100,000,000           1,000,000


The par  value of each  share of stock in each  Series is One Cent  ($0.01)  per
share.

         SECOND:  Pursuant  to  authority  expressly  vested  in  the  Board  of
Directors by Section  2-605(a)(4) of the Maryland General Corporation Law and by
Article FIFTH and Article SEVENTH of the Articles of Incorporation, the Board of
Directors of the Corporation (a) has duly established multiple classes of shares
(each hereinafter referred to as a "Class") for twelve (12) of the Series of the
capital stock of the Corporation  and (b) has reallocated the shares  designated
to each Series in Article  FIRST above among the Classes of shares.  As a result
of the  action  taken by the Board of  Directors,  the  Classes of shares of the
seventeen (17) Series of stock of the  Corporation  and the number of shares and
aggregate par value of each is as follows:



<TABLE>
<CAPTION>
                                                     NUMBER OF SHARES          NUMBER OF SHARES       AGGREGATE
SERIES NAME                     CLASS NAME           BEFORE REALLOCATION       AS REALLOCATED         PAR VALUE
- -----------                     ----------           -------------------       --------------         ---------
<S>                             <C>                   <C>                      <C>                      <C>
Growth Investors                N/A                  1,000,00,000                        0
                                Investor                        0              500,000,000            $5,000,000
                                Institutional                   0               80,000,000               800,000
                                Service                         0              210,000,000             2,100,000
                                Advisor                         0              210,000,000             2,100,000

Select Investors                N/A                    500,000,00                        0
                                Investor                        0              250,000,000             2,500,000
                                Institutional                   0               41,000,000               410,000
                                Service                         0              105,000,000             1,050,000
                                Advisor                         0              105,000,000             1,050,000

Ultra Investors                 N/A                  1,500,00,000                        0
                                Investor                        0              750,000,000             7,500,000
                                Institutional                   0              125,000,000             1,250,000
                                Service                         0              312,500,000             3,125,000
                                Advisor                         0              312,500,000             3,125,000

Vista Investors                 N/A                  1,000,00,000                        0
                                Investor                        0              500,000,000               500,000
                                Institutional                   0               80,000,000               800,000
                                Service                         0              210,000,000             2,100,000
                                Advisor                         0              210,000,000             2,100,000

Heritage Investors              N/A                    500,000,00                        0
                                Investor                        0              250,000,000             2,500,000
                                Institutional                   0               41,000,000               410,000
                                Service                         0              105,000,000             1,050,000
                                Advisor                         0              105,000,000             1,050,000

Giftrust Investors              N/A                   200,000,000              200,000,000             2,000,000




                                                   NUMBER OF SHARES          NUMBER OF SHARES          AGGREGATE
SERIES NAME                     CLASS NAME         BEFORE REALLOCATION       AS REALLOCATED            PAR VALUE
- -----------                     ----------         -------------------       --------------            ---------
Balanced Investors              N/A                  200,000,000                         0
                                Investor                       0               100,000,000            $1,000,000
                                Institutional                  0                16,000,000               160,000
                                Service                        0                50,000,000               500,000
                                Advisor                        0                50,000,000               500,000

Cash Reserve                    N/A                4,000,000,000                         0
                                Investor                       0             2,000,000,000            20,000,000
                                Service                        0             1,000,000,000            10,000,000
                                Advisor                        0             1,000,000,000            10,000,000

U.S. Governments                N/A                  200,000,000                         0
   Short-Term                   Investor                       0               100,000,000             1,000,000
                                Service                        0                50,000,000               500,000
                                Advisor                        0                50,000,000               500,000

Long-Term Bond                  N/A                  200,000,000                         0
                                Investor                       0               100,000,000             1,000,000
                                Service                        0                50,000,000               500,000
                                Advisor                        0                50,000,000               500,000

Tax-Exempt                      N/A                  200,000,000               200,000,000             2,000,000
   Intermediate-Bond

Tax-Exempt                      N/A                  200,000,000               200,000,000             2,000,000
   Long-Term

Tax-Exempt                      N/A                  200,000,000               200,000,000             2,000,000
   Short-Term

U.S. Governments                N/A                  200,000,000                         0
   Intermediate-Term            Investor                       0               100,000,000             1,000,000
                                Service                        0                50,000,000               500,000
                                Advisor                        0                50,000,000               500,000

Limited Term Bond               N/A                  200,000,000                         0
                                Investor                       0               100,000,000             1,000,000
                                Service                        0                50,000,000               500,000
                                Advisor                        0                50,000,000               500,000




                                                   NUMBER OF SHARES          NUMBER OF SHARES          AGGREGATE
SERIES NAME                     CLASS NAME         BEFORE REALLOCATION       AS REALLOCATED            PAR VALUE
- -----------                     ----------         -------------------       --------------            ---------

Intermediate-Term               N/A                 200,000,000                         0
   Bond                         Investor                      0               100,000,000            $1,000,000
                                Service                       0                50,000,000               500,000
                                Advisor                       0                50,000,000               500,000

Twentieth Century               N/A                  100,00,000               100,000,000             1,000,000
New Opportunities
   Fund
</TABLE>

         THIRD:  Except as otherwise provided by the express provisions of these
Articles  Supplementary,  nothing herein shall limit, by inference or otherwise,
the  discretionary  right of the Board of  Directors to  serialize,  classify or
reclassify and issue any unissued  shares of any Series or Class or any unissued
shares that have not been  allocated  to a Series or Class,  and to fix or alter
all terms thereof,  to the full extent provided by the Articles of Incorporation
of the corporation.

         FOURTH:  A description  of the series and classes of shares,  including
the  preferences,  conversion  and other rights,  voting  powers,  restrictions,
limitations  as to  dividends,  qualifications,  and  terms and  conditions  for
redemption is set forth in the Articles of  Incorporation of the Corporation and
is not  changed by these  Articles  Supplementary,  except  with  respect to the
creation and/or designation of the various Series.

         FIFTH:   The  Board  of  Directors  of  the  Corporation  duly  adopted
resolutions dividing into Series the authorized capital stock of the Corporation
and   allocating   shares  to  each  Series  as  set  forth  in  these  Articles
Supplementary.

         SIXTH:   The  Board  of  Directors  of  the  Corporation  duly  adopted
resolutions  authorizing the new Series and allocating  shares to the Series, as
set forth in Article  FIRST,  and  dividing  the Series of capital  stock of the
Corporation into Classes and reallocating  shares to each Class, as set forth in
Article SECOND.

         IN WITNESS WHEREOF,  TWENTIETH CENTURY INVESTORS, INC. has caused these
Articles  Supplementary  to be signed  and  acknowledged  in its name and on its
behalf by its Vice President and its corporate  seal to be hereunto  affixed and
attested to by its Secretary on this 9th day of September, 1996.

                                           TWENTIETH CENTURY
ATTEST:                                    INVESTORS, INC.


/*/Patrick A. Looby                        By: /*/William M. Lyons
Name:  Patrick A. Looby                    Name:  William M. Lyons
Title: Secretary                           Title: Executive Vice President



         THE   UNDERSIGNED   Executive  Vice  President  of  TWENTIETH   CENTURY
INVESTORS,  INC.,  who  executed  on behalf of said  corporation  the  foregoing
Articles Supplementary to the Charter, of which this certificate is made a part,
hereby  acknowledges,  in the name of and on  behalf  of said  corporation,  the
foregoing Articles  supplementary to the Charter to be the corporate act of said
Corporation,  and  further  certifies  that,  to  the  best  of  his  knowledge,
information and belief,  the matters and facts set forth therein with respect to
the approval  thereof are true in all material  respects  under the penalties of
perjury.




Dated:  September 9, 1996
                                      /*/William M. Lyons
                                      William M. Lyons, Executive Vice President


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