AMERICAN CENTURY CAPITAL PORTFOLIOS INC
485BXT, 1998-11-25
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    As filed with the Securities and Exchange Commission on November 25, 1998

             1933 Act File No. 33-64872; 1940 Act File No. 811-7820

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

                       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.     __13__                  __X__


REGISTRATION STATEMENT
UNDER THE INVESTMENT COMPANY ACT OF 1940                          __X__

         Amendment No.   __13__
                        (Check appropriate box or boxes.)

                    AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
                ------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

         American Century Tower, 4500 Main Street, Kansas City, MO 64111
        ----------------------------------------------------------------
          (Address of Principal Executive Offices)            (Zip Code)

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

                             Patrick A. Looby, Esq.

        American Century Tower, 4500 Main Street, Kansas City, MO 64111
        ----------------------------------------------------------------
                     (Name and address of Agent for Service)

         Approximate Date of Proposed Public Offering: January 29, 1999

It is proposed that this filing will become effective (check appropriate box)
_____ immediately upon filing pursuant to paragraph (b) of Rule 485 
__X__ on December 30, 1998 pursuant to paragraph (b) of Rule 485 
_____ 60 days after filing pursuant to paragraph (a) of Rule 485 
_____ on (date) pursuant to paragraph (a) of Rule 485 
_____ 75 days after filing pursuant to paragraph (a)(2) of Rule 485
_____ on (date) pursuant to paragraph (a)(2) of Rule 485


The Registrant has registered an indefinite number or amount of securities under
the Securities Act of 1933 pursuant to Rule 24f-2. The Rule 24f-2 notice for the
fiscal year ended March 31, 1998, was filed on June 12, 1998.

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<PAGE>
================================================================================
                              CROSS REFERENCE SHEET

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

         N-1A Item No.              Location
         -------------              --------
PART A

Item 1. Cover Page                  Cover Page
Item 2. Synopsis                    Transaction and Operating
                                    Expense Table
Item 3. Condensed Financial         Not Applicable
          Information
Item 4. General Description         Investment Policies of
          Registrant                the Fund; Other Investment
                                    Practices, Their Characteristics
                                    and Risks; Performance
                                    Advertising; Distributions;
                                    Further Information About
                                    American Century
Item 5. Management of the           Management
          Fund
Item 6. Capital Stock and           Further Information About
          Other Securities          American Century
Item 7. Purchase of Securities      How to Open An Account;
          Being Offered             How to Exchange From One
                                    Account to Another;
                                    Share Price; Distributions
Item 8. Redemption                  How to Redeem Shares;
                                    Signature Guarantee
Item 9. Pending Legal               Not Applicable
          Proceedings


- --------------------------------------------------------------------------------
PART B
- --------------------------------------------------------------------------------

Item 10. Cover Page                 Cover Page
Item 11. Table of Contents          Table of Contents
Item 12. General Information        Not Applicable
Item 13. Investment Objectives      Investment Objective of
           and Policies             the Fund; Fundamental 
                                    Policies of the Funds;
                                    Investment Restrictions;
                                    Foreign Securities; Futures
                                    Contracts; Cash Management;
                                    An Explanation of Fixed Income 
                                    Securities Ratings;
                                    Portfolio Lending;
                                    Portfolio Turnover
Item 14. Management of the          Officers and Directors;
           Registrant               Management;
                                    Custodians
Item 15. Control Persons            Capital Stock
           and Principal
           Holders of Securities
Item 16. Investment Advisory        Management;
           and Other Services       Custodians
Item 17. Brokerage Allocation       Brokerage;
                                    Performance Advertising
Item 18. Capital Stock and          Capital Stock;
           Other Securities         Multiple Class Structure
Item 19. Purchase, Redemption       Not Applicable
           and Pricing of
           Securities Being
           Offered
Item 20. Tax Status                 Not Applicable
Item 21. Underwriters               Not Applicable
Item 22. Calculation of Yield       Performance Advertising
           Quotations of Money
           Market Funds
Item 23. Financial Statements       Not Applicable
<PAGE>
   
                                   PROSPECTUS
    

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

                                DECEMBER 30, 1998

                             AMERICAN CENTURY GROUP

                               Equity Index Fund
       


INVESTOR CLASS



                          AMERICAN CENTURY INVESTMENTS

                                FAMILY OF FUNDS

American Century  Investments offers you nearly 70 fund choices covering stocks,
bonds, money markets,  specialty investments and blended portfolios. To help you
find the funds that may meet your investment needs,  American Century funds have
been divided into three groups based on investment  style and objectives.  These
groups, which appear below, are designed to help simplify your fund decisions.

                          American Century Investments

   
Benham Group            American Century Group     Twentieth Century Group
    

MONEY MARKET FUNDS      ASSET ALLOCATION &          GROWTH FUNDS
GOVERNMENT BOND FUNDS   BALANCED FUNDS              INTERNATIONAL FUNDS
DIVERSIFIED BOND FUNDS  CONSERVATIVE EQUITY FUNDS
MUNICIPAL BOND FUNDS    SPECIALTY FUNDS

                        Equity Index Fund

       


                                   PROSPECTUS

                                December 30, 1998

                                Equity Index Fund

                                 INVESTOR CLASS


                   AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.


American  Century  Capital  Portfolios,  Inc.  is a  part  of  American  Century
Investments,  a family of funds that  includes  nearly 70 no-load  mutual  funds
covering  a variety  of  investment  opportunities.  One fund from our  American
Century Group that invests  primarily in equity  securities is described in this
Prospectus. Its investment objective is listed on page 2 of this Prospectus. The
other funds are described in separate prospectuses.

Through its Investor Class of shares,  American  Century offers investors a full
line of no-load funds, investments that have no sales charges or commissions.

This Prospectus gives you information about the fund that you should know before
investing.  Please  read this  Prospectus  carefully  and  retain it for  future
reference.  Additional  information  is included in the  Statement of Additional
Information  dated December 30, 1998, and filed with the Securities and Exchange
Commission.  It is incorporated  into this Prospectus by reference.  To obtain a
copy without charge, call or write:

                          American Century Investments
                       4500 Main Street o P.O. Box 419200
               Kansas City, Missouri 64141-6200 o 1-800-345-2021
                       International calls: 816-531-5575
                    Telecommunications Device for the Deaf:
                   1-800-634-4113 o In Missouri: 816-444-3485
                            www.americancentury.com

Additional   information,   including  this  Prospectus  and  the  Statement  of
Additional Information,  may be obtained by accessing the Web site maintained by
the SEC (www.sec.gov).

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.



   
                        Investment Objective of the Fund
    

AMERICAN CENTURY EQUITY INDEX FUND

The investment  objective of Equity Index Fund is long-term capital growth.  The
fund seeks to achieve this  objective by matching,  as closely as possible,  the
investment  results of the Standard & Poor's 500 Composite Price Index (the "S&P
500 Index").

There is no assurance that the fund will achieve its investment objective.

NO  PERSON  IS  AUTHORIZED  BY THE  FUND TO GIVE  ANY  INFORMATION  OR MAKE  ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS OR IN OTHER PRINTED
OR WRITTEN  MATERIAL ISSUED BY OR ON BEHALF OF THE FUND, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.




                               TABLE OF CONTENTS

Investment Objective of the Fund
Transaction And Operating Expense Table

Information Regarding the Fund
Investment Policies of the Fund
S&P 500 Index
Equity Securities
Cash Management
Other Investment  Practices,  Their  Characteristics  and Risks
Non-Diversified Company
Futures Contracts
Portfolio Turnover
Repurchase Agreements
Derivative Securities
Performance Information

How to Invest with American Century Investments 
American Century Investments
Investing in American Century 
How to Open an Account 
By Mail 
By Wire 
By Exchange
In Person 
Subsequent Investments 
By Mail 
By Telephone 
By Online Access 
By Wire
In Person 
Automatic Investment Plan 
How to Exchange from One Account to Another
By Mail 
By Telephone 
By Online Access 
How to Redeem Shares 
By Mail 
By Telephone
By Check-A-Month 
Other Automatic Redemptions 
Redemption Proceeds 
By Check 
By Wire and ACH 
Special Requirements for Large Redemptions 
Redemption of Shares in Low-Balance Accounts 
Signature Guarantee 
Special Shareholder Services 
Automated Information Line 
Online Account Access 
Open Order Service 
Tax-Qualified Retirement Plans 
Important Policies Regarding Your Investments 
Reports to Shareholders 
Employer-Sponsored Retirement Plans and Institutional Accounts

Additional Information You Should Know 
Share Price 
When Share Price Is Determined 
How Share Price Is Determined 
Where to Find Information About Share Price 
Distributions 
Taxes 
Tax-Deferred Accounts 
Taxable Accounts 
Management
Investment Management 
Code of Ethics 
Transfer and Administrative Services 
Year 2000 Issues 
Distribution of Fund Shares 
Further Information About American Century




                    Transaction And Operating Expense Table

SHAREHOLDER TRANSACTION EXPENSES:

Maximum Sales Load Imposed on Purchases .......................... none
Maximum Sales Load Imposed on Reinvested Dividends ............... none
Deferred Sales Load .............................................. none
Redemption Fee(1) ................................................ none
Exchange Fee ..................................................... none

ANNUAL FUND OPERATING EXPENSES:
(as a percentage of net assets)

   
Management Fees(2) ...............................................0.49%
12b-1 Fees ....................................................... none
Other Expenses(3) ................................................0.00%
Total Fund Operating Expenses ....................................0.49%
    

EXAMPLE

   
You would pay the following expenses         1 year                $ 5
on a $1,000 investment, assuming a 5%        3 year                 16
annual return and redemption at the          5 years                27
end of each time period:                     10 years               62
    


(1)  Redemption proceeds sent by wire are subject to a $10 processing fee.

(2)  A  portion  of the  management  fee may be paid by the  fund's  manager  to
     unaffiliated  third parties who provide  recordkeeping  and  administrative
     services that would  otherwise be performed by an affiliate of the manager.
     See "Management--Transfer and Administrative Services," page __.

(3)  Other  expenses,  which  include  the fees and  expenses  (including  legal
     counsel  fees) of  those  directors  who are not  "interested  persons"  as
     defined in the Investment Company Act, are expected to be less than 0.01 of
     1% of average net assets for the current fiscal year.

The  purpose  of this  table is to help you  understand  the  various  costs and
expenses  that you,  as a  shareholder,  will bear  directly  or  indirectly  in
connection with an investment in the class of shares of the fund offered by this
Prospectus.  The example set forth above assumes  reinvestment  of all dividends
and  distributions  and uses a 5%  annual  rate of  return  as  required  by SEC
regulations.

Neither the 5% rate of return nor the expenses  shown above should be considered
indications of past or future returns and expenses.  Actual returns and expenses
may be greater or less than those shown.

   
The shares  offered by this  Prospectus  are  Investor  Class shares and have no
up-front or deferred sales  charges,  commissions or 12b-1 fees. The fund offers
one other class of shares to investors primarily to institutional investors. The
difference  in the fee  structures  among  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 manager for core  investment
advisory  services.  Accordingly,  the core investment  advisory expenses do not
vary by class.  A difference in total fees will result in different  performance
for the  other  classes.  For  additional  information  about the  classes,  see
"Further Information About American Century," Page ____.
    




                         Information Regarding the fund

Investment Policies of the Fund

The fund has adopted certain  investment  restrictions that are set forth in the
Statement  of  Additional  Information.  Those  restrictions,  as  well  as  the
investment  objective of the fund identified on page 2 of this  Prospectus,  and
any other investment  policies designated as "fundamental" in this Prospectus or
in  the  Statement  of  Additional   Information,   cannot  be  changed  without
shareholder  approval.  The fund has implemented  additional investment policies
and  practices  to guide  their  activities  in the  pursuit  of its  investment
objective.  These policies and practices,  which are described  throughout  this
Prospectus,  are not  designated  as  fundamental  policies  and may be  changed
without shareholder approval.

S&P 500 Index

   
Equity  Index Fund seeks to match the  investment  results of the S&P 500 Index.
The S&P 500 Index is composed of 500 selected  common stocks,  most of which are
listed on the New York  Stock  Exchange.  Standard & Poor's,  a division  of The
McGraw-Hill  Companies,  Inc.  (the "Index  Sponsor"),  chooses the stocks to be
included in the S&P 500 Index solely on a statistical  basis.  The weightings of
stocks  in the S&P 500 Index are based on each  stock's  relative  total  market
capitalization.  Because of this weighting, the fund expects that the 50 largest
companies  will comprise a large  proportion  of the S&P 500 Index.  The advisor
generally  will  select  stocks  for the  fund's  portfolio  in  order  of their
weightings in the S&P 500 Index beginning with the heaviest weighted stocks. The
fund attempts to be fully  invested at all times in the stocks that comprise the
S&P 500 Index and stock index futures as described  below and, in any event,  at
least 80% of the fund's total  assets will be so  invested.  With respect to the
fund's  assets  invested in the stocks in the S&P 500 Index,  the  percentage of
such assets invested in each stock is expected to be  approximately  the same as
the percentage it represents in the S&P 500 Index.
    

"Standard & Poor's(R),"  "Standard & Poor's 500," "S&P  500(R)"and  "S&P(R)" are
trademarks of the Index Sponsor, and have been licensed for use by the fund.

The fund is managed by  determining  which stocks are to be purchased or sold to
match, to the extent  feasible,  the investment  characteristics  of the S&P 500
Index.  The  fund  will  attempt  to  achieve  a high  correlation  between  the
performance  of its portfolio and that of the S&P 500 Index,  in both rising and
falling markets without taking into account expenses.

The fund's ability to correlate its performance  with that of the S&P 500 Index,
however, may be affected by, among other things,  changes in securities markets,
the  manner in which the total  return of the S&P 500 Index is  calculated,  the
size of the fund's portfolio, the amount of cash or cash equivalents held in the
fund's portfolio,  and the timing,  frequency and size of shareholder  purchases
and  redemptions.  The fund will use cash flows from  shareholder  purchase  and
redemption activity to maintain,  to the extent feasible,  the similarity of its
portfolio to the securities comprising the S&P 500 Index.

Inclusion of a security in the S&P 500 Index in no way implies an opinion by the
Index Sponsor as to its attractiveness as an investment.  In the future, subject
to the  approval  of the fund's  shareholders,  the fund may select a  different
index if such a standard of  comparison is deemed to be more  representative  of
the  performance  of the  securities  the fund  seeks to match.  The fund is not
sponsored, endorsed, sold or promoted by the Index Sponsor.

Equity Securities

Equity securities fluctuate in value, based on many factors, including ones that
are not related to the value of the individual issuers of the equity securities.
These  fluctuations in value can be large.  Investors must be prepared to accept
the risk that the fund's share price may  fluctuate and that they may lose money
as a result.

Cash Management

When the fund has cash reserves, the fund may invest in money market instruments
consisting  of  U.S.  Government  securities,  time  deposits,  certificates  of
deposit,  bankers'  acceptances,  high-grade  commercial  paper,  and repurchase
agreements. In addition, the fund may invest up to 5% of its total assets in any
money market fund, including those advised by the advisor or subadvisor.

Other Investment Practices, Their Characteristics and Risks

For additional  information,  see "Investment  Restrictions" in the Statement of
Additional Information.

Non-Diversified Company

   
The  fund  is a  "non-diversified"  investment  company.  This  means  that  the
proportion  of the fund's  assets that may be invested  in the  securities  of a
single  issuer  is not  limited  by the  Investment  Company  Act of  1940  (the
"Investment Company Act"). A "diversified" investment company is required by the
Investment  Company Act generally,  with respect to 75% of its total assets,  to
invest not more than 5% of such assets in the securities of a single issuer.
    

Depending  upon  the  composition  of the  S&P  500  Index,  a  relatively  high
percentage of the fund's  assets may be invested in the  securities of a limited
number  of  issuers,  some of which  may be  within  the same  economic  sector.
Consequently,  the  fund's  portfolio  may be more  sensitive  to changes in the
market value of a single issuer or industry.

However, to meet Federal tax requirements, at the close of each quarter the fund
may not have more than 25% of its total  assets  invested in any one issuer and,
with  respect  to 50% of total  assets,  not more  than 5% of its  total  assets
invested in any one issuer.

Futures Contracts

The fund may invest in stock index  futures in  anticipation  of taking a market
position when  available cash balances do not permit an  economically  efficient
trade in the cash  market.  A futures  contract is an  agreement to take or make
delivery of an amount of cash based on the  difference  between the value of the
index at the beginning and at the end of the contract period.

Rather than actually purchasing the specific financial assets, or the securities
of a market index, the manager may purchase a futures  contract,  which reflects
the value of such underlying  securities.  For example,  S&P 500 futures reflect
the value of the underlying  companies  that comprise the S&P 500 Index.  If the
aggregate market value of the underlying index securities increases or decreases
during the contract period,  the value of the S&P 500 futures can be expected to
reflect such increase or decrease. As a result, the manager is able to expose to
the  equity  markets  cash that is  maintained  by the fund to meet  anticipated
redemptions  or  held  for  future  investment  opportunities.  Because  futures
generally  settle within a day from the date they are closed out (compared  with
three days for the types of equity securities primarily invested in by the fund)
the manager  believes that this use of futures allows the fund to effectively be
fully invested in equity  securities  while  maintaining the liquidity needed by
the fund.

When  the  fund  enters  into a  futures  contract,  it  must  make  deposit  of
securities,  known as "initial  margin," as partial security for its performance
under the contract.  As the value of the underlying financial assets fluctuates,
the parties to the  contract are required to make  additional  margin  payments,
known as  "variation  margin," to cover any  additional  obligation  it may have
under the contract.  Assets set aside by the fund as initial or variation margin
may not be disposed of so long as the fund maintains the contract.

The  fund  may not  purchase  leveraged  futures.  The fund  will  deposit  in a
segregated  account with its custodian bank appropriate  securities in an amount
equal to the  fluctuating  market  value of the index  futures  contracts it has
purchased,  less any margin deposited on its position. The fund will invest only
in exchange-traded futures.

Portfolio Turnover

Investment   decisions  to  purchase  and  sell  securities  are  based  on  the
anticipated  contribution  of the security in question to the fund's  investment
objectives. Because the fund is managed to match the performance of an index, it
is not expected  that the fund will have a high  portfolio  turnover  rate.  The
manager  believes,  however,  that the rate of portfolio  turnover is irrelevant
when it  determines  a change  is in  order to  achieve  those  objectives  and,
accordingly, the annual portfolio turnover rate cannot be anticipated.

Higher turnover would generate  correspondingly  greater  brokerage  commissions
that the fund pays  directly.  Higher  portfolio  turnover also may increase the
likelihood of realized  capital  gains,  if any,  distributed  by the fund.  See
"Taxes," page 16.

Repurchase Agreements

The 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 fund's investment policies.

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  repurchase  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.

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

Derivative Securities

To the extent permitted by its investment  objective and policies,  the fund 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  more  accurately  described  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 the 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.

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 but
not limited to:

*    the risk that the underlying security, interest rate, market index or other
     financial  asset  will  not move in the  direction  the  portfolio  manager
     anticipates;

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

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

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

The Board of Directors has approved the manager'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 manager will report on fund  activity in derivative
securities to the Board of Directors as necessary.  In addition,  the Board will
review the manager's policy for investments in derivative securities annually.

Performance Information

From time to time, the fund may advertise performance data. Fund performance may
be  shown  by  presenting  one  or  more  performance  measurements,   including
cumulative total return or average annual total return.  Performance data may be
quoted  separately for the Investor Class and for the other classes,  if any are
established in the future.

Cumulative  total return data is computed by considering all elements of return,
including  reinvestment  of dividends  and capital gains  distributions,  over a
stated  period of time.  Average  annual total return is determined by computing
the annual compound return over a stated period of time that would have produced
the  fund's  cumulative  total  return  over  the  same  period  if  the  fund's
performance had remained constant throughout.

The fund also may include in advertisements data comparing  performance with the
performance of non-related  investment media,  published  editorial comments and
performance  rankings  compiled  by  independent  organizations  such as  Lipper
Analytical  Services and  publications  that monitor the  performance  of mutual
funds.  Performance information may be quoted numerically or may be presented in
a table,  graph or other  illustration.  In addition,  fund  performance  may be
compared  to  well-known  indices of market  performance  including  the S&P 500
Index.  Fund  performance  also may be compared,  on a relative  basis, to other
funds in our fund  family.  This  relative  comparison,  which may be based upon
historical fund  performance or historical or expected  volatility or other fund
characteristics,  may be presented  numerically,  graphically  or in text.  Fund
performance also may be combined or blended with other funds in our fund family,
and that combined or blended  performance may be compared to the same indices to
which individual funds may be compared.

All performance  information  advertised by the fund 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.



                How to Invest with American Century Investments

American Century Investments

The  fund  offered  by  this  Prospectus  is a  part  of  the  American  Century
Investments  family  of  mutual  funds.  Our  family  provides  a full  range of
investment  opportunities,  from  the  aggressive  equity  growth  funds  in our
Twentieth  Century Group,  to the fixed income funds in our Benham Group, to the
moderate risk and specialty  funds in our American  Century  Group.  Please call
1-800-345-2021  for a  brochure  or  prospectuses  for the  other  funds  in the
American Century Investments family.

To  reduce  expenses  and  demonstrate  respect  for  our  environment,  we have
initiated a project  through which we will  eliminate  duplicate  copies of most
financial  reports and  prospectuses  to most  households  and  deliver  account
statements to most households in a single envelope,  even if they have more than
one  account.  If you would like  additional  copies of  financial  reports  and
prospectuses or separate mailing of account statements, please call us.

Investing in American Century

The  following  sections  explain  how to  invest  in  American  Century  funds,
including purchases, redemptions,  exchanges and special services. You will find
more detail about doing  business with us by referring to the Investor  Services
Guide that you will receive when you open an account.

If  you   own  or  are   considering   purchasing   fund   shares   through   an
employer-sponsored  retirement  plan or through a bank,  broker-dealer  or other
financial  intermediary,  the  following  sections,  as well as the  information
contained  in our Investor  Services  Guide,  may not apply to you.  Please read
"Employer-Sponsored Retirement Plans and Institutional Accounts," page 14.

How to Open an Account

To open an account,  you must complete and sign an application,  furnishing your
taxpayer  identification  number. (You must also certify whether you are subject
to withholding  for failing to report income to the IRS.)  Investments  received
without a certified taxpayer identification number will be returned.

The minimum investment for the fund is $10,000.

The  minimum  investment  requirements  may  be  different  for  some  types  of
retirement  accounts.  Call one of our  Investor  Services  Representatives  for
information  on  our  retirement  plans,  which  are  available  for  individual
investors or for those investing through their employers.

Please note: If you register your account as belonging to multiple owners (e.g.,
as joint  tenants),  you must  provide us with  specific  authorization  on your
application in order for us to accept written or telephone  instructions  from a
single owner. Otherwise,  all owners will have to agree to any transactions that
involve the account  (whether the transaction  request is in writing or over the
telephone).

You may invest in the following ways:

By Mail

Send a completed application and check or money order payable in U.S. dollars to
American Century Investments.

By Wire

You may make your initial  investment by wiring funds. To do so, call us or mail
a completed application and provide your bank with the following information:

Receiving Bank And Routing Number:
Commerce Bank, N.A. (101000019)

Beneficiary (BNF):
American Century Services Corporation
4500 Main St., Kansas City, Missouri 64111

Beneficiary Account Number (BNF ACCT):
2804918

Reference For Beneficiary (RFB):
American Century account number into which you are investing.  If more than one,
leave blank and see Bank To Bank Information below.

Originator To Beneficiary (OBI):
Name and address of owner of account into which you are investing.

Bank To Bank Information
(BBI Or Free Form Text):

     Taxpayer identification or Social Security number.

     If more than one account, account numbers and amount to be invested in each
     account.

     Current  tax year,  previous  tax year or rollover  designation  if an IRA.
     Specify  whether   traditional  IRA,  Roth  IRA,  Education  IRA,  SEP-IRA,
     SARSEP-IRA, SIMPLE Employer or SIMPLE Employee.

By Exchange

Call  1-800-345-2021  from 7 a.m. to 7 p.m.  Central time to get  information on
opening an account by exchanging from another American Century account. See page
10 for more information on exchanges.

In Person

If you prefer to work with a representative  in person,  please visit one of our
Investor Centers, located at:

4500 Main Street
Kansas City, Missouri 64111

4917 Town Center Drive
Leawood, Kansas 66211

1665 Charleston Road
Mountain View, California 94043

2000 S. Colorado Blvd.
Denver, Colorado 80222

Subsequent Investments

Subsequent  investments may be made by an automatic bank,  payroll or government
direct  deposit (see  "Automatic  Investment  Plan," this page) or by any of the
methods below. The minimum investment  requirement for subsequent investments is
$250 for checks  submitted  without the  investment  slip  portion of a previous
statement or confirmation and $50 for all other types of subsequent investments.

By Mail

When making subsequent investments,  enclose your check with the investment slip
portion of a previous  statement or confirmation.  If the investment slip is not
available,  indicate  your name,  address and account  number on your check or a
separate  piece of paper.  (Please  be aware  that the  investment  minimum  for
subsequent investments is higher without an investment slip.)

By Telephone

Upon completion of your  application and once your account is open, you may make
investments by telephone.  You may call an Investor  Services  Representative or
use our Automated Information Line.

By Online Access

Upon completion of your  application and once your account is open, you may make
investments online.

By Wire

You  may  make  subsequent   investments  by  wire.  Follow  the  wire  transfer
instructions on page 9 and indicate your account number.

In Person

You may make  subsequent  investments in person at one of our Investor  Centers.
The locations of our Investor Centers are listed on this page.

Automatic Investment Plan

By completing the application and electing to make investments automatically, we
will draw on your bank account regularly.  Such investments must be at least the
equivalent  of $50 per  month.  You also may  choose  an  automatic  payroll  or
government  direct  deposit.  If you are  establishing a new account,  check the
appropriate box under  "Automatic  Investments"  on your  application to receive
more  information.  If you would  like to add a direct  deposit  to an  existing
account, please call an Investor Services Representative.

How to Exchange from One Account to Another

As long as you meet any minimum investment  requirements,  you may exchange your
fund shares to our other funds up to six times per year per account. An exchange
request will be  processed as of the same day it is received,  if it is received
before the fund's net asset  values are  calculated,  which is one hour prior to
the close of the New York Stock  Exchange for funds  issued by American  Century
Target  Maturities  Trust and at the close of the  Exchange for all of our other
funds. See "When Share Price Is Determined," page 15.

For any single  exchange,  the shares of each fund  being  acquired  must have a
value of at least $100.  However, we will allow investors to set up an Automatic
Exchange Plan between any two funds in the amount of at least $50 per month. See
our Investor Services Guide for further information about exchanges.

If, in any 90-day period,  the total of your exchanges and your redemptions from
any one  account  exceeds  the lesser of  $250,000  or 1% of the fund's  assets,
further  exchanges  will be subject to special  requirements  to comply with our
policy on large redemptions.  See "Special  Requirements for Large Redemptions,"
page 11.

By Mail

You may direct us in writing to exchange  your shares from one American  Century
account to another. For additional information, please see our Investor Services
Guide.

By Telephone

You can make  exchanges  over the  telephone  (either with an Investor  Services
Representative  or  using  our  Automated  Information  Line--see  page 12) upon
completion and receipt of your application or by calling us at 1-800-345-2021 to
get the appropriate form.

By Online Access

You can make exchanges  online.  This service is established upon completion and
receipt  of your  application  or by  calling  us at  1-800-345-2021  to get the
appropriate form.

How to Redeem Shares

We will redeem or "buy back" your shares at any time.  Redemptions  will be made
at the next net asset value  determined after a complete  redemption  request is
received.

Please  note that a request  to redeem  shares in an IRA or 403(b)  plan must be
accompanied  by an  executed  IRS  Form  W4-P  and a reason  for  withdrawal  as
specified by the IRS.

By Mail

Your written  instructions  to redeem  shares may be made either by a redemption
form,  which we will  send  you upon  request,  or by a  letter  to us.  Certain
redemptions may require a signature guarantee. Please see "Signature Guarantee,"
page 12.

By Telephone

Upon  completion  of your  application  and once your  account is open,  you may
redeem your shares by calling an Investor Services Representative.

By Check-A-Month

If you have at least a $10,000 balance in your account, you may redeem shares by
Check-A-Month.  A Check-A-Month  plan  automatically  redeems enough shares each
month to provide you with a check in an amount you choose  (minimum $50). To set
up a Check-A-Month plan, please call and request our Check-A-Month brochure.

Other Automatic Redemptions

If you have at least a $10,000  balance in your  account,  you may elect to make
redemptions  automatically  by  authorizing  us to send  funds to you or to your
account  at  a  bank  or  other  financial  institution.  To  set  up  automatic
redemptions, call an Investor Services Representative.

Redemption Proceeds

Please  note  that  shortly  after a  purchase  of  shares  is made by  check or
electronic  draft (also known as an ACH draft) from your bank, we may wait up to
15 days or longer to send  redemption  proceeds (to allow your purchase funds to
clear).  No interest is paid on the redemption  proceeds after the redemption is
processed but before your redemption proceeds are sent.

Redemption proceeds may be sent to you in one of the following ways:

By Check

Ordinarily,  all redemption  checks will be made payable to the registered owner
of the  shares  and will be  mailed  only to the  address  of  record.  For more
information, please refer to our Investor Services Guide.

By Wire and ACH

You may  authorize  us to transmit  redemption  proceeds  by wire or ACH.  These
services will be effective 15 days after we receive the authorization.

Your bank will  usually  receive  wired funds  within 48 hours of  transmission.
Funds  transferred  by ACH may be received up to seven days after  transmission.
Wired  funds  are  subject  to a $10 fee to cover  bank wire  charges,  which is
deducted from redemption proceeds.  Once the funds are transmitted,  the time of
receipt and the funds' availability are not under our control.

Special Requirements for Large Redemptions

We have elected to be governed by Rule 18f-1 under the  Investment  Company Act,
which obligates the fund to make certain  redemptions in cash. This  requirement
to pay redemptions in cash applies to situations where one shareholder  redeems,
during any 90-day  period,  up to the lesser of  $250,000 or 1% of the assets of
the fund.  Although  redemptions in excess of this limitation will also normally
be paid in cash, we reserve the right under unusual circumstances to honor these
redemptions  by  making  payment  in  whole  or in  part in  readily  marketable
securities (a "redemption-in-kind").

If payment is made in securities, the securities,  selected by the fund, will be
valued in the same  manner as they are in  computing  the fund's net asset value
and will be provided without prior notice.

If you expect to make a large redemption and would like to avoid any possibility
of being paid in securities, you may do so by providing 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. Receipt of your
instruction 15 days prior to the  transaction  provides the fund with sufficient
time to raise the cash in an orderly  manner to pay the  redemption  and thereby
minimizes  the  effect  of  the   redemption  on  the  fund  and  its  remaining
shareholders.

Despite the fund's right to redeem fund shares through a redemption-in-kind,  we
do not expect to exercise this option unless the fund has an unusually low level
of cash to meet redemptions and/or is experiencing  unusually strong demands for
its  cash.  Such a demand  might be  caused,  for  example,  by  extreme  market
conditions  that  result in an  abnormally  high  level of  redemption  requests
concentrated in a short period of time.  Absent these or similar  circumstances,
we expect  redemptions in excess of $250,000 to be paid in cash in any fund with
assets of more than $50 million if total redemptions from any one account in any
90-day period do not exceed one-half of 1% of the total assets of the fund.

Redemption of Shares in Low-Balance Accounts

Whenever  the shares held in an account  have a value of less than the  required
minimum,  a letter  will be sent  advising  you to bring the value of the shares
held in the account up to the minimum.  See "How to Open An Account," page 9. If
action is not taken within 90 days of the letter's  date, the shares held in the
account will be redeemed and the proceeds  from the  redemption  will be sent by
check to your address of record. We reserve the right to increase the investment
minimums.

Signature Guarantee

To protect your accounts from fraud,  some transactions will require a signature
guarantee.  You can obtain a signature  guarantee  from a bank or trust company,
credit union, broker-dealer, securities exchange or association, clearing agency
or savings association, as defined by federal law.

For a more in-depth  explanation of our signature  guarantee  policy,  or if you
live outside the United  States and would like to know how to obtain a signature
guarantee, please consult our Investor Services Guide.

We reserve the right to require a signature guarantee on any transaction,  or to
change this policy at any time.

Special Shareholder Services

We offer  several  services  to make your  account  easier to manage.  These are
listed on the account application.  You will find more information about each of
these services in our Investor Services Guide.

Our special shareholder services include:

Automated Information Line

We offer an Automated  Information  Line, 24 hours a day,  seven days a week, at
1-800-345-8765.  By calling the Automated  Information  Line,  you may listen to
fund prices,  yields and total return  figures.  You may also use the  Automated
Information  Line to make  investments  into your accounts (if we have your bank
information  on file) and  obtain  your  share  balance,  value and most  recent
transactions.  You also may  exchange  shares  from one fund to another  via the
Automated  Information  Line.  Redemption  instructions  cannot be given via the
Automated Information Line.

Online Account Access

You may contact us 24 hours a day, seven days a week, at www.americancentury.com
to access daily share prices,  receive  updates on major market indices and view
historical  performance of the fund.  You can use your personal  access code and
Social Security number to view your account balance and account  activity,  make
subsequent  investments  from your bank account or exchange shares from one fund
to another.

Open Order Service

Through our open order service, you may designate a price at which to buy shares
of a  variable-priced  fund by exchange from one of our money market funds, or a
price at which to sell  shares of a  variable-priced  fund by exchange to one of
our money market funds. The designated purchase price must be equal to or lower,
or the designated sale price equal to or higher, than the variable-priced fund's
net asset value at the time the order is placed.  If the designated price is met
within 90 calendar  days, we will execute your exchange order  automatically  at
that  price  (or  better).  Open  orders  not  executed  within  90 days will be
canceled.

If the fund you have selected deducts a distribution  from its share price, your
order  price  will  be  adjusted   accordingly  so  the  distribution  does  not
inadvertently  trigger an open order transaction on your behalf. If you close or
re-register  the  account  from which the shares are to be  redeemed,  your open
order will be canceled.

Because of their  time-sensitive  nature,  open order  transactions are accepted
only by  telephone  or in person.  These  transactions  are  subject to exchange
limitations  described  in  each  fund's  prospectus,  except  that  orders  and
cancellations  received  before 2 p.m.  Central time are effective the same day,
and orders or cancellations received after 2 p.m. Central time are effective the
next business day.

Tax-Qualified Retirement Plans

The fund is available for your  tax-deferred  retirement  plan. Call or write us
and request the appropriate forms for:

     Individual Retirement Accounts (IRAs);

     403(b)  plans  for  employees  of  public  school  systems  and  non-profit
     organizations; or

     Profit  sharing  plans  and  pension  plans  for   corporations  and  other
     employers.

If your IRA and 403(b) accounts do not total $10,000, each account is subject to
an annual $10 fee, up to a total of $30 per year.

You can also  transfer  your  tax-deferred  plan to us from  another  company or
custodian. Call or write us for a Request to Transfer form.

Important Policies Regarding Your Investments

Every account is subject to policies that could affect your  investment.  Please
refer to the Investor Services Guide for further  information about the policies
discussed below, as well as further detail about the services we offer.

(1)  We reserve the right for any reason to suspend the offering of shares for a
     period  of time,  or to  reject  any  specific  purchase  order  (including
     purchases by exchange).  Additionally,  purchases may be refused if, in the
     opinion  of the  manager,  they  are  of a  size  that  would  disrupt  the
     management of the fund.

(2)  We reserve the right to make changes to any stated investment requirements,
     including  those that relate to purchases,  transfers and  redemptions.  In
     addition,  we also may alter, add to or terminate any investor services and
     privileges.  Any changes may affect all shareholders or only certain series
     or classes of shareholders.

(3)  Shares  being  acquired  must  be  qualified  for  sale in  your  state  of
     residence.

(4)  Transactions  requesting a specific price and date, other than open orders,
     will be  refused.  Once you  have  mailed  or  otherwise  transmitted  your
     transaction instructions to us, they may not be modified or canceled.

(5)  If a  transaction  request is made by a  corporation,  partnership,  trust,
     fiduciary,  agent or unincorporated  association,  we will require evidence
     satisfactory to us of the authority of the individual making the request.

(6)  We have  established  procedures  designed  to assure the  authenticity  of
     instructions  received by telephone.  These procedures  include  requesting
     personal  identification  from  callers,  recording  telephone  calls,  and
     providing written confirmations of telephone transactions. These procedures
     are  designed  to protect  shareholders  from  unauthorized  or  fraudulent
     instructions.  If we do not employ  reasonable  procedures  to confirm  the
     genuineness  of  instructions,  then we may be  liable  for  losses  due to
     unauthorized or fraudulent  instructions.  The company,  its transfer agent
     and manager will not be responsible for any loss due to  instructions  they
     reasonably believe are genuine.

(7)  All signatures  should be exactly as the name appears in the  registration.
     If the owner's name appears in the  registration  as Mary Elizabeth  Jones,
     she should sign that way and not as Mary E. Jones.

(8)  Unusual stock market conditions have in the past resulted in an increase in
     the number of shareholder  telephone calls. If you experience difficulty in
     reaching us during such periods, you may send your transaction instructions
     by mail,  express  mail or  courier  service,  or you may  visit one of our
     Investor  Centers.  You also may use our Automated  Information Line if you
     have requested and received an access code and are not attempting to redeem
     shares.

(9)  If  you  fail  to  provide   us  with  the   correct   certified   taxpayer
     identification  number,  we may reduce any  redemption  proceeds  by $50 to
     cover the  penalty  the IRS will  impose on us for  failure to report  your
     correct taxpayer identification number on information reports.

(10) We will perform special inquiries on shareholder  accounts.  A research fee
     of $15 per hour may be applied.

Reports to Shareholders

At the end of each calendar quarter,  we will send you a consolidated  statement
that summarizes all of your American Century holdings,  as well as an individual
statement for each fund you own that reflects all year-to-date  activity in your
account. You may request a statement of your account activity at any time.

With the exception of most automatic transactions, each time you invest, redeem,
transfer or exchange shares, we will send you a confirmation of the transaction.
See the Investor Services Guide for more detail.

Carefully review all the information relating to transactions on your statements
and  confirmations  to ensure  that your  instructions  were acted on  properly.
Please  notify us  immediately  in writing if there is an error.  If you fail to
provide  notification of an error with reasonable  promptness,  i.e.,  within 30
days of  non-automatic  transactions  or  within  30  days  of the  date of your
consolidated quarterly statement, in the case of automatic transactions, we will
deem you to have ratified the transaction.

No later than January 31 of each year, we will send you reports that you may use
in completing your U.S. income tax return.  See the Investor  Services Guide for
more information.

Each year, we will send you an annual and a semiannual  report  relating to your
fund,  each of which is  incorporated  herein by  reference.  The annual  report
includes audited financial  statements and a list of portfolio  securities as of
the  fiscal  year  end.  The  semiannual  report  includes  unaudited  financial
statements  for the first six  months of the fiscal  year,  as well as a list of
portfolio  securities at the end of the period. You also will receive an updated
prospectus at least once each year.  Please read these materials  carefully,  as
they will help you understand your fund.

Employer-Sponsored Retirement Plans and Institutional Accounts

Information  contained in our Investor  Services Guide pertains to  shareholders
who  invest   directly   with   American   Century   rather   than   through  an
employer-sponsored retirement plan or through a financial intermediary.

If  you   own  or  are   considering   purchasing   fund   shares   through   an
employer-sponsored retirement plan, your ability to purchase shares of the fund,
exchange them for shares of other American  Century funds,  and redeem them will
depend on the terms of your plan.

If  you  own  or  are  considering   purchasing  fund  shares  through  a  bank,
broker-dealer,  insurance company or other financial intermediary,  your ability
to purchase,  exchange and redeem shares will depend on your agreement with, and
the policies of, such financial intermediary.

You may  reach  one of our  Institutional  Service  Representatives  by  calling
1-800-345-3533 to request information about our funds and services,  to obtain a
current  prospectus or to get answers to any questions  about our funds that you
are unable to obtain through your plan administrator or financial intermediary.





                     Additional Information You Should Know

Share Price

When Share Price Is Determined

The price of your shares is also referred to as their net asset value. Net asset
value is  determined  by  calculating  the  total  value of the  fund's  assets,
deducting  total  liabilities  and  dividing  the result by the number of shares
outstanding.  For all American  Century  funds,  except funds issued by American
Century Target  Maturities  Trust, net asset value is determined as of the close
of regular  trading on the New York Stock Exchange on each day that the Exchange
is open, usually 3 p.m. Central time. The net asset values for Target Maturities
funds are determined one hour prior to the close of the Exchange.

Investments  and  requests to redeem or exchange  shares will  receive the share
price next  determined  after  receipt by us of the  investment,  redemption  or
exchange  request.  For example,  investments and requests to redeem or exchange
shares  received by us or one of our agents or  designees  before the time as of
which the net asset value of the fund is determined,  are effective on, and will
receive the price  determined,  that day.  Investment,  redemption  and exchange
requests received  thereafter are effective on, and receive the price determined
as of the close of the Exchange on the next day the Exchange is open.

Investments  are considered  received only when payment is received by us. Wired
funds are considered  received on the day they are deposited in our bank account
if they are  deposited  before  the time as of which the net asset  value of the
fund is determined.

Investments by telephone  pursuant to your prior  authorization to us to draw on
your bank account are considered received at the time of your telephone call.

Investment and  transaction  instructions  received by us on any business day by
mail  prior  to the  time  as of  which  the  net  asset  value  of the  fund is
determined, will receive that day's price. Investments and instructions received
after that time will receive the price determined on the next business day.

If you invest in fund shares through an  employer-sponsored  retirement  plan or
other financial intermediary, it is the responsibility of your plan recordkeeper
or financial  intermediary  to transmit your  purchase,  exchange and redemption
requests to the fund's  transfer agent prior to the applicable  cut-off time for
receiving orders and to make payment for any purchase transactions in accordance
with the fund's procedures or any contractual  arrangements with the fund or the
fund's distributor in order for you to receive that day's price.

We have contractual relationships with certain financial intermediaries in which
such intermediaries  represent that they have systems to track the time at which
investment  orders are received and to  segregate  orders  received at different
times.   Based  on  these   representations,   the  fund  has  authorized   such
intermediaries  and their designees to accept purchase and redemption  orders on
the fund's behalf up to the applicable  cut-off time. The fund will be deemed to
have received such orders upon acceptance by the duly  authorized  intermediary,
and such  orders will be priced at the fund's net asset  values next  determined
after acceptance on the fund's behalf by such intermediary.

How Share Price Is Determined

The  valuation of assets for  determining  net asset value may be  summarized as
follows:

The  portfolio  securities  of the fund,  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.

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  exchanged  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 New
York Stock Exchange business day. In addition, trading may take place in various
foreign  markets on Saturdays or on other days when the New York Stock  Exchange
is not  open  and on  which  the  fund's  net  asset  value  is not  calculated.
Therefore,  such  calculation  does 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 fund's  portfolio may be affected on days when
shares of the fund may not be purchased or redeemed.

Where to Find Information About Share Price

The net asset values of the  Investor  Class of the fund is published in leading
newspapers  daily.  The net asset  value may be  obtained  by  calling  us or by
accessing our Web site (www.americancentury.com).

Distributions

Distributions  from net  investment  income  are  declared  and paid  quarterly.
Distributions from net realized securities gains, if any, generally are declared
and paid annually, usually in December, but the fund may make distributions on a
more frequent basis to comply with the distribution requirements of the Internal
Revenue Code, in all events in a manner  consistent  with the  provisions of the
Investment Company Act.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.    For   shareholders   investing   through   taxable   accounts,
distributions  will be  reinvested  unless  you elect to  receive  them in cash.
Distributions of less than $10 generally will be reinvested.  Distributions made
shortly  after a  purchase  by check  or ACH may be held up to 15 days.  You may
elect to have distributions on shares held in certain IRAs and 403(b) plans paid
in cash  only if you are at least 59 1/2 years old or  permanently  and  totally
disabled.  Distribution  checks  normally are mailed within seven days after the
record date. Please consult our Investor Services Guide for further  information
regarding your distribution options.

A distribution  on shares of the fund does not increase the value of your shares
or your total  return.  At any given time the value of your shares  includes the
undistributed  net gains, if any,  realized by the fund on the sale of portfolio
securities,  and  undistributed  dividends  and  interest  received,  less  fund
expenses.

Because such gains and dividends are included in the price of your shares,  when
they are  distributed  the price of your  shares is reduced by the amount of the
distribution.  If you buy your shares through a taxable  account just before the
distribution,  you will pay the full price for your  shares,  and then receive a
portion of the purchase price back as a taxable distribution.  See "Taxes," this
page.

Taxes

The fund has  elected to be taxed under  Subchapter  M of the  Internal  Revenue
Code,  which means that to the extent its income is distributed to shareholders,
it pays no income tax.

Tax-Deferred Accounts

If fund shares are purchased through tax-deferred accounts,  such as a qualified
employer-sponsored   retirement  or  savings  plan,  income  and  capital  gains
distributions  paid  by the  fund  generally  will  not be  subject  to  current
taxation,  but will  accumulate in your account under the plan on a tax-deferred
basis.

Employer-sponsored  retirement  and  savings  plans are  governed by complex tax
rules.  If you elect to participate in your employer's  plan,  consult your plan
administrator,  your plan's  summary plan  description,  or a  professional  tax
advisor   regarding  the  tax   consequences  of   participation  in  the  plan,
contributions to, and withdrawals or distributions from the plan.

Taxable Accounts

   
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 distribution of
long-term capital gain to you with respect to such shares.
    

Dividends and interest received by the 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 in
respect of investments by non-resident investors.  The foreign taxes paid by the
fund will reduce its dividends.

Distributions are taxable to you regardless of whether they are taken in cash or
reinvested, even if the value of your shares is below your cost. If you purchase
shares  shortly  before  a  distribution,  you  must  pay  income  taxes  on the
distribution,  even though the value of your investment (plus cash received,  if
any) will not have  increased.  In  addition,  the  share  price at the time you
purchase  shares may  include  unrealized  gains in the  securities  held in the
investment portfolio of the fund. If these portfolio securities are subsequently
sold and the gains are realized,  they will, to the extent not offset by capital
losses, be paid to you as a distribution of capital gains and will be taxable to
you as short-term or long-term capital gains.

In  January  of the year  following  the  distribution,  if you own  shares in a
taxable account, you will receive a Form 1099-DIV notifying you of the status of
your distributions for federal income tax purposes.

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.

If you have not complied with certain  provisions  of the Internal  Revenue Code
and Regulations, we are required by federal law to withhold and remit to the IRS
31%  of  reportable  payments  (which  may  include  dividends,   capital  gains
distributions  and redemptions).  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. This charge is not refundable.

   
Redemption  of shares of the fund  (including  redemptions  made in an  exchange
transaction)  will be a taxable  transaction for federal income tax purposes and
shareholders  generally  will recognize a gain or loss in an amount equal to the
difference  between  the basis of the shares and the amount  received.  Assuming
that  shareholders hold such shares as a capital asset, the gain or loss will be
a  capital  gain  or  loss  and  generally  will  be  considered  long-term,  if
shareholders  have held such  shares for a period of more than 12  months.  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,  resulting in a
postponement of the recognition of such loss for federal income tax purposes.
    

In addition to the federal income tax  consequences  described above relating to
an  investment  in the  fund,  there  may be other  federal,  state or local tax
considerations  that depend upon the circumstances of each particular  investor.
Prospective  shareholders are therefore urged to consult their tax advisors with
respect to the effect of this investment on their own specific situations.

Management

Investment Management

Under the laws of the State of Maryland,  the Board of Directors is  responsible
for  managing  the  business  and  affairs of the fund.  Acting  pursuant  to an
investment  management  agreement  entered into with the fund,  American Century
Investment  Management,  Inc.  serves as the manager of the fund.  Its principal
place of business is American  Century  Tower,  4500 Main  Street,  Kansas City,
Missouri 64111. The manager has been providing  investment  advisory services to
investment companies and institutional clients since it was founded in 1958.

Barclays Global  Investors,  N.A.,  acting  pursuant to a subadvisory  agreement
among it, American Century Investment  Management,  Inc. and the fund, makes the
day-to-day  investment  decisions  for the fund in  accordance  with the  fund's
investment  objective,  policies and  restrictions  under the supervision of the
manager and the Board of Directors.

The activities of the manager are subject only to directions of the fund's Board
of  Directors.  The manager pays all the expenses of the fund except  brokerage,
taxes,  interest,  fees and  expenses  of the  non-interested  person  directors
(including counsel fees) and extraordinary expenses.

For the  services  provided  to the  Investor  Class of the  fund,  the  manager
receives an annual fee of 0.49% of the average net assets of the fund.

For subadvisory services, the manager pays the subadvisor an annual fee of 0.05%
of the average net assets of the fund.

On the first  business day of each month,  the fund pays a management fee to the
manager 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 the fund's  net  assets  during the
previous  month,  and  further  multiplying  that  product  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).

Code of Ethics

The fund and the manager have adopted a Code of Ethics that  restricts  personal
investing practices by employees of the manager and its affiliates.  Among other
provisions,   the  Code  of  Ethics  requires  that  employees  with  access  to
information  about the purchase or sale of securities  in the fund's  portfolios
obtain  preclearance before executing personal trades. With respect to Portfolio
Managers  and  other  investment   personnel,   the  Code  of  Ethics  prohibits
acquisition  of securities  in an initial  public  offering,  as well as profits
derived from the purchase and sale of the same security within 60 calendar days.
These provisions are designed to ensure that the interests of fund  shareholders
come before the interests of the people who manage those funds.

Transfer and Administrative Services

American Century Services Corporation, American Century Tower, 4500 Main Street,
Kansas City, Missouri 64111 acts as transfer agent and dividend-paying agent for
the fund. It provides  facilities,  equipment and personnel to the fund,  and is
paid for such services by the manager.

Certain  recordkeeping  and  administrative  services  that would  otherwise  be
performed  by the transfer  agent may be  performed  by an insurance  company or
other  entity  providing  similar  services for various  retirement  plans using
shares of the fund as a funding medium, by broker-dealers and financial advisors
for their  customers  investing in shares of American  Century or by sponsors of
multi  mutual  fund no- or  low-transaction  fee  programs.  The  manager  or an
affiliate  may  enter  into  contracts  to pay them for such  recordkeeping  and
administrative services out of its unified management fee.

Although there is no sales charge levied by the fund,  transactions in shares of
the  fund may be  executed  by  brokers  or  investment  advisors  who  charge a
transaction-based  fee or other fee for their  services.  Such  charges may vary
among  broker-dealers and financial advisors,  but in all cases will be retained
by the  broker-dealer  or financial  advisor and not remitted to the fund or the
manager.  You  should be aware of the fact that these  transactions  may be made
directly with American Century without incurring such fees.

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 manager.

The  manager  and  transfer  agent are both  wholly  owned by  American  Century
Companies,  Inc.,  which is controlled by James E. Stowers Jr.,  Chairman of the
fund's Board of Directors.

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

Year 2000 Issues

Many of the world's  computer  systems  currently  cannot properly  recognize or
process 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 fund,  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 fund's  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
fund's business,  particularly its ability to provide shareholder services,  may
be hampered.

In  addition,  the  issuers  of  securities  the fund owns  could have Year 2000
computer  problems.  These problems could  negatively  affect the value of their
securities, which, in turn, could impact the fund's performance. The manager 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 manager may consider when making investment decisions, and other factors may
receive greater weight.

Distribution of Fund Shares

The fund's shares are distributed by FDI, a registered  broker-dealer.  FDI is a
wholly-owned  indirect  subsidiary of Boston  Institutional  Group,  Inc.  FDI's
principal business address is 60 State Street, Suite 1300, Boston, Massachusetts
02109.  The Investor Class of shares does not pay any commissions or sales loads
to the distributor or to any other broker-dealers or financial intermediaries in
connection with the distribution of fund shares.

Investors may open accounts with American  Century only through the distributor.
All purchase  transactions  in the fund offered by this Prospectus are processed
by the transfer agent,  which is authorized to accept any instructions  relating
to fund accounts.  All purchase orders must be accepted by the distributor.  All
fees and expenses of FDI in acting as  distributor  for the fund are paid by the
manager.

Further Information About American Century

American Century Capital Portfolios,  Inc., (the  "Corporation"),  the issuer of
the fund, was organized as a Maryland corporation on June 14, 1993.

The corporation is an open-end  management  investment company whose shares were
first offered for sale  September 1, 1993.  Its business and affairs are managed
by its officers under the direction of its Board of Directors.

The principal  office of the fund is American  Century Tower,  4500 Main Street,
P.O. Box 419200, Kansas City, Missouri 64141-6200.  All inquiries may be made by
mail to that address, or by telephone to 1-800-345-2021 (international calls:
816-531-5575).

American Century Capital Portfolios,  Inc. currently issues five series of $0.01
par value  shares.  Each  series is commonly  referred to as a fund.  The assets
belonging to each series of shares are held separately by the custodian.

   
American Century offers two classes of shares of the fund. The shares offered by
this  Prospectus  are  Investor  Class  shares  and  have no  up-front  charges,
commissions or 12b-1 fees.

The other class of shares is primarily offered to institutional investors or
through  institutional   distribution   channels,   such  as  employer-sponsored
retirement  plans through banks,  broker-dealers,  insurance  companies or other
financial  intermediaries.  The other class has different fees, expenses, and/or
minimum  investment  requirements than the Investor Class. The difference in the
fee structures  among 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  manager  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 or contact a sales  representative or financial  intermediary
who offers those classes of shares.
    

Except as described below, all classes of shares of the fund will have identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions. The only differences among the Corporation's various 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.

Each share,  irrespective  of series or class,  is entitled to one vote for each
dollar of net asset value applicable to such share on all questions,  except for
those  matters that must be voted on separately by the series or class of shares
affected. Matters affecting only one series or class are voted upon only by that
series or class.

Shares have non-cumulative  voting rights,  which means that the holders of more
than 50% of the votes  cast in an  election  of  directors  can elect all of the
directors  if  they  choose  to do so,  and in such  event  the  holders  of the
remaining  votes will not be able to elect any person or persons to the Board of
Directors.

Unless required by the Investment  Company Act, it will not be necessary for the
fund to hold annual meetings of shareholders.  As a result, shareholders may not
vote each year on the  election of  directors  or the  appointment  of auditors.
However,  pursuant to the fund's by-laws,  the holders of shares representing at
least  10% of the  votes  entitled  to be cast  may  request  the fund to hold a
special meeting of shareholders.  We will assist in the communication with other
shareholders.

We reserve the right to change any of our  policies,  practices  and  procedures
described in this Prospectus, including the Statement of Additional Information,
without  shareholder  approval  except  in  those  instances  where  shareholder
approval is expressly required.





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

Investor Services:
1-800-345-2021 OR 816-531-5575

Automated Information Line:
1-800-345-8765

Telecommunications Device for the Deaf:
1-800-634-4113 OR 816-444-3485

FAX: 816-340-7962

www.americancentury.com

                        [american century logo[reg.sm])
                                    American
                                     Century
<PAGE>
                                   PROSPECTUS

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

                               DECEMBER 30, 1998

                             AMERICAN CENTURY GROUP

                               Equity Index Fund



INSTITUTIONAL CLASS



                          AMERICAN CENTURY INVESTMENTS

                                FAMILY OF FUNDS

American Century  Investments offers you nearly 70 fund choices covering stocks,
bonds, money markets,  specialty investments and blended portfolios. To help you
find the funds that may meet your investment needs,  American Century funds have
been divided into three groups based on investment  style and objectives.  These
groups, which appear below, are designed to help simplify your fund decisions.

                          American Century Investments

Benham Group            American Century Group     Twentieth Century Group

MONEY MARKET FUNDS      ASSET ALLOCATION &          GROWTH FUNDS
GOVERNMENT BOND FUNDS   BALANCED FUNDS              INTERNATIONAL FUNDS
DIVERSIFIED BOND FUNDS  CONSERVATIVE EQUITY FUNDS
MUNICIPAL BOND FUNDS    SPECIALTY FUNDS

                        Equity Index Fund



                                   PROSPECTUS

                                December 30, 1998

                                Equity Index Fund

                               INSTITUTIONAL CLASS


                   AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.


American  Century  Capital  Portfolios,  Inc.  is a  part  of  American  Century
Investments,  a family of funds that  includes  nearly 70 no-load  mutual  funds
covering  a variety  of  investment  opportunities.  One fund from our  American
Century Group that invests  primarily in equity  securities is described in this
Prospectus. Its investment objective is listed on page 2 of this Prospectus. The
other funds are described in separate prospectuses.

The fund's shares offered in this  Prospectus (the  Institutional  Class shares)
are sold at their net asset  value  with no sales  charges or  commissions.  The
Institutional   Class   shares  are  made   available   for  purchase  by  large
institutional  shareholders,  such  as  bank  trust  departments,  corporations,
endowments,  foundations  and financial  advisors  that meet the fund's  minimum
investment  requirements.  Institutional  Class  shares  are not  available  for
purchase  by  insurance  companies  or  participant-directed  employer-sponsored
retirement plans.

This Prospectus gives you information about the fund that you should know before
investing.  Please  read this  Prospectus  carefully  and  retain it for  future
reference.  Additional  information  is included in the  Statement of Additional
Information  dated December 30, 1998, and filed with the Securities and Exchange
Commission.  It is incorporated  into this Prospectus by reference.  To obtain a
copy without charge, call or write:

                          American Century Investments
                       4500 Main Street o P.O. Box 419385
               Kansas City, Missouri 64141-6385 o 1-800-345-3533
                       International calls: 816-531-5575
                    Telecommunications Device for the Deaf:
                   1-800-345-1833 o In Missouri: 816-444-3038
                            www.americancentury.com

Additional   information,   including  this  Prospectus  and  the  Statement  of
Additional Information,  may be obtained by accessing the Web site maintained by
the SEC (www.sec.gov).

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.



                        Investment Objective of the Fund

AMERICAN CENTURY EQUITY INDEX FUND

The investment  objective of Equity Index Fund is long-term capital growth.  The
fund seeks to achieve this objective by matching, as closely as possible, the

investment  results of the Standard & Poor's 500 Composite Price Index (the "S&P
500 Index").

There is no assurance that the fund will achieve its investment objective.

NO  PERSON  IS  AUTHORIZED  BY THE  FUND TO GIVE  ANY  INFORMATION  OR MAKE  ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS OR IN OTHER PRINTED
OR WRITTEN  MATERIAL ISSUED BY OR ON BEHALF OF THE FUND, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.




                               TABLE OF CONTENTS

Investment Objective of the Fund
Transaction And Operating Expense Table

Information Regarding the Fund
Investment Policies of the Fund
S&P 500 Index
Equity Securities
Cash Management
Other Investment  Practices,  Their  Characteristics  and Risks
Non-Diversified Company
Futures Contracts
Portfolio Turnover
Repurchase Agreements
Derivative Securities
Performance Information

How to Invest with American Century Investments 
American Century Investments
Investing in American Century 
How to Open an Account 
By Mail 
By Wire 
By Exchange
In Person 
Subsequent Investments 
By Mail 
By Telephone 
By Wire 
In Person
Automatic Investment Plan 
Minimum Investment 
How to Exchange from One Account to Another 
By Mail 
By Telephone 
How to Redeem Shares 
By Mail 
By Telephone 
By Check-A-Month 
Other Automatic Redemptions 
Redemption Proceeds 
By Check 
By Wire and ACH 
Special Requirements for Large Redemptions 
Signature Guarantee 
Special Shareholder Services 
Open Order Service 
Tax-Qualified Retirement Plans 
Important Policies Regarding Your Investments 
Reports to Shareholders 
Customers of Banks, Broker-Dealers and Other Financial Intermediaries

Additional Information You Should Know 
Share Price 
When Share Price Is Determined 
How Share Price Is Determined 
Where to Find Information About Share Price 
Distributions 
Taxes 
Tax-Deferred Accounts 
Taxable Accounts 
Management 
Investment Management 
Code of Ethics 
Transfer and Administrative Services 
Year 2000 Issues 
Distribution of Fund Shares 
Further Information About American Century




                    Transaction And Operating Expense Table

SHAREHOLDER TRANSACTION EXPENSES:

Maximum Sales Load Imposed on Purchases .......................... none
Maximum Sales Load Imposed on Reinvested Dividends ............... none
Deferred Sales Load .............................................. none
Redemption Fee ................................................... none
Exchange Fee ..................................................... none

ANNUAL FUND OPERATING EXPENSES:
(as a percentage of net assets)

Management Fees...................................................0.29%
12b-1 Fees ....................................................... none
Other Expenses(1) ................................................0.00%
Total Fund Operating Expenses ....................................0.29%

EXAMPLE

You would pay the following expenses         1 year                $ 3
on a $1,000 investment, assuming a 5%        3 year                  9
annual return and redemption at the          5 years                16
end of each time period:                     10 years               37


(1)  Other  expenses,  which  include  the fees and  expenses  (including  legal
     counsel  fees) of  those  directors  who are not  "interested  persons"  as
     defined in the Investment Company Act, are expected to be less than 0.01 of
     1% of average net assets for the current fiscal year.

The  purpose  of this  table is to help you  understand  the  various  costs and
expenses  that you,  as a  shareholder,  will bear  directly  or  indirectly  in
connection with an investment in the class of shares of the fund offered by this
Prospectus.  The example set forth above assumes  reinvestment  of all dividends
and  distributions  and uses a 5%  annual  rate of  return  as  required  by SEC
regulations.

Neither the 5% rate of return nor the expenses  shown above should be considered
indications of past or future returns and expenses.  Actual returns and expenses
may be greater or less than those shown.

The shares offered by this Prospectus are Institutional Class shares and have no
up-front or deferred sales  charges,  commissions or 12b-1 fees. The fund offers
one other class of shares which is primarily made available to retail investors.
The other class has a different fee structure than the Institutional  Class. The
difference  in the fee  structures  among  the  classes  is the  result of their
difference  in the fee  structures  among  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 manager for core  investment
advisory  services.  Accordingly,  the core investment  advisory expenses do not
vary by class.  A difference  in fees will result in different  performance  for
those  classes.  For  additional  information  about the  various  classes,  see
"Further Information About American Century," page ____.




                         Information Regarding the fund

Investment Policies of the Fund

The fund has adopted certain  investment  restrictions that are set forth in the
Statement  of  Additional  Information.  Those  restrictions,  as  well  as  the
investment  objective of the fund identified on page 2 of this  Prospectus,  and
any other investment  policies designated as "fundamental" in this Prospectus or
in  the  Statement  of  Additional   Information,   cannot  be  changed  without
shareholder  approval.  The fund has implemented  additional investment policies
and  practices  to guide  their  activities  in the  pursuit  of its  investment
objective.  These policies and practices,  which are described  throughout  this
Prospectus,  are not  designated  as  fundamental  policies  and may be  changed
without shareholder approval.

S&P 500 Index

Equity  Index Fund seeks to match the  investment  results of the S&P 500 Index.
The S&P 500 Index is composed of 500 selected  common stocks,  most of which are
listed on the New York  Stock  Exchange.  Standard & Poor's,  a division  of The
McGraw-Hill  Companies,  Inc.  (the "Index  Sponsor"),  chooses the stocks to be
included in the S&P 500 Index solely on a statistical  basis.  The weightings of
stocks  in the S&P 500 Index are based on each  stock's  relative  total  market
capitalization.  Because of this weighting, the fund expects that the 50 largest
companies  will comprise a large  proportion  of the S&P 500 Index.  The advisor
generally  will  select  stocks  for the  fund's  portfolio  in  order  of their
weightings in the S&P 500 Index beginning with the heaviest weighted stocks. The
fund attempts to be fully  invested at all times in the stocks that comprise the
S&P 500 Index and stock index futures as described  below and, in any event,  at
least 80% of the fund's total  assets will be so  invested.  With respect to the
fund's  assets  invested in the stocks in the S&P 500 Index,  the  percentage of
such assets invested in each stock is expected to be  approximately  the same as
the percentage it represents in the S&P 500 Index.

"Standard & Poor's(R),"  "Standard & Poor's 500," "S&P  500(R)"and  "S&P(R)" are
trademarks of the Index Sponsor, and have been licensed for use by the fund.

The fund is managed by  determining  which stocks are to be purchased or sold to
match, to the extent  feasible,  the investment  characteristics  of the S&P 500
Index.  The  fund  will  attempt  to  achieve  a high  correlation  between  the
performance  of its portfolio and that of the S&P 500 Index,  in both rising and
falling markets without taking into account expenses.

The fund's ability to correlate its performance  with that of the S&P 500 Index,
however, may be affected by, among other things,  changes in securities markets,
the  manner in which the total  return of the S&P 500 Index is  calculated,  the
size of the fund's portfolio, the amount of cash or cash equivalents held in the
fund's portfolio,  and the timing,  frequency and size of shareholder  purchases
and  redemptions.  The fund will use cash flows from  shareholder  purchase  and
redemption activity to maintain,  to the extent feasible,  the similarity of its
portfolio to the securities comprising the S&P 500 Index.

Inclusion of a security in the S&P 500 Index in no way implies an opinion by the
Index Sponsor as to its attractiveness as an investment.  In the future, subject
to the  approval  of the fund's  shareholders,  the fund may select a  different
index if such a standard of  comparison is deemed to be more  representative  of
the  performance  of the  securities  the fund  seeks to match.  The fund is not
sponsored, endorsed, sold or promoted by the Index Sponsor.

Equity Securities

Equity securities fluctuate in value, based on many factors, including ones that
are not related to the value of the individual issuers of the equity securities.
These  fluctuations in value can be large.  Investors must be prepared to accept
the risk that the fund's share price may  fluctuate and that they may lose money
as a result.

Cash Management

When the fund has cash reserves, the fund may invest in money market instruments
consisting  of  U.S.  Government  securities,  time  deposits,  certificates  of
deposit,  bankers'  acceptances,  high-grade  commercial  paper,  and repurchase
agreements. In addition, the fund may invest up to 5% of its total assets in any
money market fund, including those advised by the advisor or subadvisor.

Other Investment Practices, Their Characteristics and Risks

For additional  information,  see "Investment  Restrictions" in the Statement of
Additional Information.

Non-Diversified Company

The  fund  is a  "non-diversified"  investment  company.  This  means  that  the
proportion  of the fund's  assets that may be invested  in the  securities  of a
single  issuer  is not  limited  by the  Investment  Company  Act of  1940  (the
"Investment Company Act"). A "diversified" investment company is required by the
Investment  Company Act generally,  with respect to 75% of its total assets,  to
invest not more than 5% of such assets in the securities of a single issuer.

Depending  upon  the  composition  of the  S&P  500  Index,  a  relatively  high
percentage of the fund's  assets may be invested in the  securities of a limited
number  of  issuers,  some of which  may be  within  the same  economic  sector.
Consequently,  the  fund's  portfolio  may be more  sensitive  to changes in the
market value of a single issuer or industry.

However, to meet Federal tax requirements, at the close of each quarter the fund
may not have more than 25% of its total  assets  invested in any one issuer and,
with  respect  to 50% of total  assets,  not more  than 5% of its  total  assets
invested in any one issuer.

Futures Contracts

The fund may invest in stock index  futures in  anticipation  of taking a market
position when  available cash balances do not permit an  economically  efficient
trade in the cash  market.  A futures  contract is an  agreement to take or make
delivery of an amount of cash based on the  difference  between the value of the
index at the beginning and at the end of the contract period.

Rather than actually purchasing the specific financial assets, or the securities
of a market index, the manager may purchase a futures  contract,  which reflects
the value of such underlying  securities.  For example,  S&P 500 futures reflect
the value of the underlying  companies  that comprise the S&P 500 Index.  If the
aggregate market value of the underlying index securities increases or decreases
during the contract period,  the value of the S&P 500 futures can be expected to
reflect such increase or decrease. As a result, the manager is able to expose to
the  equity  markets  cash that is  maintained  by the fund to meet  anticipated
redemptions  or  held  for  future  investment  opportunities.  Because  futures
generally  settle within a day from the date they are closed out (compared  with
three days for the types of equity securities primarily invested in by the fund)
the manager  believes that this use of futures allows the fund to effectively be
fully invested in equity  securities  while  maintaining the liquidity needed by
the fund.

When  the  fund  enters  into a  futures  contract,  it  must  make  deposit  of
securities,  known as "initial  margin," as partial security for its performance
under the contract.  As the value of the underlying financial assets fluctuates,
the parties to the  contract are required to make  additional  margin  payments,
known as  "variation  margin," to cover any  additional  obligation  it may have
under the contract.  Assets set aside by the fund as initial or variation margin
may not be disposed of so long as the fund maintains the contract.

The  fund  may not  purchase  leveraged  futures.  The fund  will  deposit  in a
segregated  account with its custodian bank appropriate  securities in an amount
equal to the  fluctuating  market  value of the index  futures  contracts it has
purchased,  less any margin deposited on its position. The fund will invest only
in exchange-traded futures.

Portfolio Turnover

Investment   decisions  to  purchase  and  sell  securities  are  based  on  the
anticipated  contribution  of the security in question to the fund's  investment
objectives. Because the fund is managed to match the performance of an index, it
is not expected  that the fund will have a high  portfolio  turnover  rate.  The
manager  believes,  however,  that the rate of portfolio  turnover is irrelevant
when it  determines  a change  is in  order to  achieve  those  objectives  and,
accordingly, the annual portfolio turnover rate cannot be anticipated.

Higher turnover would generate  correspondingly  greater  brokerage  commissions
that the fund pays  directly.  Higher  portfolio  turnover also may increase the
likelihood of realized  capital  gains,  if any,  distributed  by the fund.  See
"Taxes," page 16.

Repurchase Agreements

The 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 fund's investment policies.

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  repurchase  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.

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

Derivative Securities

To the extent permitted by its investment  objective and policies,  the fund 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  more  accurately  described  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 the 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.

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 but
not limited to:

*    the risk that the underlying security, interest rate, market index or other
     financial  asset  will  not move in the  direction  the  portfolio  manager
     anticipates;

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

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

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

The Board of Directors has approved the manager'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 manager will report on fund  activity in derivative
securities to the Board of Directors as necessary.  In addition,  the Board will
review the manager's policy for investments in derivative securities annually.

Performance Information

From time to time, the fund may advertise performance data. Fund performance may
be  shown  by  presenting  one  or  more  performance  measurements,   including
cumulative total return or average annual total return.  Performance data may be
quoted  separately for the Investor Class and for the other classes,  if any are
established in the future.

Cumulative  total return data is computed by considering all elements of return,
including  reinvestment  of dividends  and capital gains  distributions,  over a
stated  period of time.  Average  annual total return is determined by computing
the annual compound return over a stated period of time that would have produced
the  fund's  cumulative  total  return  over  the  same  period  if  the  fund's
performance had remained constant throughout.

The fund also may include in advertisements data comparing  performance with the
performance of non-related  investment media,  published  editorial comments and
performance  rankings  compiled  by  independent  organizations  such as  Lipper
Analytical  Services and  publications  that monitor the  performance  of mutual
funds.  Performance information may be quoted numerically or may be presented in
a table,  graph or other  illustration.  In addition,  fund  performance  may be
compared  to  well-known  indices of market  performance  including  the S&P 500
Index.  Fund  performance  also may be compared,  on a relative  basis, to other
funds in our fund  family.  This  relative  comparison,  which may be based upon
historical fund  performance or historical or expected  volatility or other fund
characteristics,  may be presented  numerically,  graphically  or in text.  Fund
performance also may be combined or blended with other funds in our fund family,
and that combined or blended  performance may be compared to the same indices to
which individual funds may be compared.

All performance  information  advertised by the fund 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.



                How to Invest with American Century Investments

American Century Investments

The  fund  offered  by  this  Prospectus  is a  part  of  the  American  Century
Investments  family  of  mutual  funds.  Our  family  provides  a full  range of
investment  opportunities,  from  the  aggressive  equity  growth  funds  in our
Twentieth  Century Group,  to the fixed income funds in our Benham Group, to the
moderate risk and specialty  funds in our American  Century  Group.  Please call
1-800-345-3533  for a  brochure  or  prospectuses  for the  other  funds  in the
American Century Investments family.

To  reduce  expenses  and  demonstrate  respect  for  our  environment,  we have
initiated a project  through which we will  eliminate  duplicate  copies of most
financial  reports and  prospectuses  to most  households  and  deliver  account
statements to most households in a single envelope,  even if they have more than
one  account.  If you would like  additional  copies of  financial  reports  and
prospectuses or separate mailing of account statements, please call us.

Investing in American Century

The  following  sections  explain  how to  invest  in  American  Century  funds,
including purchases, redemptions,  exchanges and special services. You will find
more detail about doing  business with us by referring to the Investor  Services
Guide that you will receive when you open an account.

If  you   own  or  are   considering   purchasing   fund   shares   through   an
employer-sponsored  retirement  plan or through a bank,  broker-dealer  or other
financial  intermediary,  the  following  sections,  as well as the  information
contained  in our Investor  Services  Guide,  may not apply to you.  Please read
"Minimum  Investment," page _____, and "Customers of Banks,  Broker-Dealers  and
Other Financial Intermediaries," page _____.

How to Open an Account

To open an account,  you must complete and sign an application,  furnishing your
taxpayer  identification  number. (You must also certify whether you are subject
to withholding  for failing to report income to the IRS.)  Investments  received
without a certified taxpayer identification number will be returned.


You may invest in the following ways:

By Mail

Send a completed application and check or money order payable in U.S. dollars to
American Century Investments.

By Wire

You may make your initial  investment by wiring funds. To do so, call us or mail
a completed application and provide your bank with the following information:

Receiving Bank And Routing Number:
Commerce Bank, N.A. (101000019)

Beneficiary (BNF):
American Century Services Corporation
4500 Main St., Kansas City, Missouri 64111

Beneficiary Account Number (BNF ACCT):
2804918

Reference For Beneficiary (RFB):
American Century account number into which you are investing.  If more than one,
leave blank and see Bank To Bank Information below.

Originator To Beneficiary (OBI):
Name and address of owner of account into which you are investing.

Bank To Bank Information
(BBI Or Free Form Text):

     Taxpayer identification or Social Security number.

     If more than one account, account numbers and amount to be invested in each
     account.

     Current  tax year,  previous  tax year or rollover  designation  if an IRA.
     Specify  whether   traditional  IRA,  Roth  IRA,  Education  IRA,  SEP-IRA,
     SARSEP-IRA, SIMPLE Employer or SIMPLE Employee.

By Exchange

Call  1-800-345-3533  from 7 a.m. to 7 p.m.  Central time to get  information on
opening an account by exchanging from another American Century account. See page
10 for more information on exchanges.

In Person

If you prefer to work with a representative  in person,  please visit one of our
Investor Centers, located at:

4500 Main Street
Kansas City, Missouri 64111

4917 Town Center Drive
Leawood, Kansas 66211

1665 Charleston Road
Mountain View, California 94043

2000 S. Colorado Blvd.
Denver, Colorado 80222

Subsequent Investments

Subsequent  investments may be made by an automatic bank,  payroll or government
direct  deposit (see  "Automatic  Investment  Plan," this page) or by any of the
methods below. The minimum investment  requirement for subsequent investments is
$250 for checks  submitted  without the  investment  slip  portion of a previous
statement or confirmation and $50 for all other types of subsequent investments.

By Mail

When making subsequent investments,  enclose your check with the investment slip
portion of a previous  statement or confirmation.  If the investment slip is not
available,  indicate  your name,  address and account  number on your check or a
separate  piece of paper.  (Please  be aware  that the  investment  minimum  for
subsequent investments is higher without an investment slip.)

By Telephone

Upon completion of your  application and once your account is open, you may make
investments by telephone.  You may call an Institutional Service  Representative
or use our Automated Information Line.


By Wire

You  may  make  subsequent   investments  by  wire.  Follow  the  wire  transfer
instructions on page 9 and indicate your account number.

In Person

You may make  subsequent  investments in person at one of our Investor  Centers.
The locations of our Investor Centers are listed on this page.

Automatic Investment Plan

By completing the application and electing to make investments automatically, we
will draw on your bank account regularly.  Such investments must be at least the
equivalent  of $50 per  month.  You also may  choose  an  automatic  payroll  or
government  direct  deposit.  If you are  establishing a new account,  check the
appropriate box under  "Automatic  Investments"  on your  application to receive
more  information.  If you would  like to add a direct  deposit  to an  existing
account, please call an Investor Services Representative.

Minimum Investment

The  minimum   investment  is  $5  million  ($3  million  for   endowments   and
foundations).  If you  invest  with us  through a bank,  broker-dealer  or other
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).  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 shares.

How to Exchange from One Account to Another

As long as you meet any minimum investment  requirements,  you may exchange your
fund shares to our other funds up to six times per year per account. An exchange
request will be  processed as of the same day it is received,  if it is received
before the fund's net asset  values are  calculated,  which is one hour prior to
the close of the New York Stock  Exchange for funds  issued by American  Century
Target  Maturities  Trust and at the close of the  Exchange for all of our other
funds. See "When Share Price Is Determined," page 15.

For any single  exchange,  the shares of each fund  being  acquired  must have a
value of at least $100.  However, we will allow investors to set up an Automatic
Exchange Plan between any two funds in the amount of at least $50 per month. See
our Investor Services Guide for further information about exchanges.

If, in any 90-day period,  the total of your exchanges and your redemptions from
any one  account  exceeds  the lesser of  $250,000  or 1% of the fund's  assets,
further  exchanges  will be subject to special  requirements  to comply with our
policy on large redemptions.  See "Special  Requirements for Large Redemptions,"
page 11.

By Mail

You may direct us in writing to exchange  your shares from one American  Century
account to another. For additional information, please see our Investor Services
Guide.

By Telephone

You can make exchanges  over the telephone  upon  completion and receipt of your
application or by calling us at 1-800-345-3533 to get the appropriate form.

How to Redeem Shares

We will redeem or "buy back" your shares at any time.  Redemptions  will be made
at the next net asset value  determined after a complete  redemption  request is
received.

Please  note that a request  to redeem  shares in an IRA or 403(b)  plan must be
accompanied  by an  executed  IRS  Form  W4-P  and a reason  for  withdrawal  as
specified by the IRS.

By Mail

Your written  instructions  to redeem  shares may be made either by a redemption
form,  which we will  send  you upon  request,  or by a  letter  to us.  Certain
redemptions may require a signature guarantee. Please see "Signature Guarantee,"
page 12.

By Telephone

Upon  completion  of your  application  and once your  account is open,  you may
redeem your shares by calling an Institutional Service Representative.

By Check-A-Month

You may redeem  shares by  Check-A-Month.  A  Check-A-Month  plan  automatically
redeems  enough  shares  each month to provide you with a check in an amount you
choose  (minimum $50). To set up a Check-A-Month  plan,  please call and request
our Check-A-Month brochure.

Other Automatic Redemptions

You may elect to make redemptions  automatically by authorizing us to send funds
to you or to your account at a bank or other  financial  institution.  To set up
automatic redemptions, call an Institutional Service Representative.

Redemption Proceeds

Please  note  that  shortly  after a  purchase  of  shares  is made by  check or
electronic  draft (also known as an ACH draft) from your bank, we may wait up to
15 days or longer to send  redemption  proceeds (to allow your purchase funds to
clear).  No interest is paid on the redemption  proceeds after the redemption is
processed but before your redemption proceeds are sent.

Redemption proceeds may be sent to you in one of the following ways:

By Check

Ordinarily,  all redemption  checks will be made payable to the registered owner
of the  shares  and will be  mailed  only to the  address  of  record.  For more
information, please refer to our Investor Services Guide.

By Wire and ACH

You may  authorize  us to transmit  redemption  proceeds  by wire or ACH.  These
services will be effective 15 days after we receive the authorization.

Your bank will  usually  receive  wired funds  within 48 hours of  transmission.
Funds transferred by ACH may be received up to seven days after transmission.
Once the funds are transmitted,  the time of receipt and the funds' availability
are not under our control.

Special Requirements for Large Redemptions

We have elected to be governed by Rule 18f-1 under the  Investment  Company Act,
which obligates the fund to make certain  redemptions in cash. This  requirement
to pay redemptions in cash applies to situations where one shareholder  redeems,
during any 90-day  period,  up to the lesser of  $250,000 or 1% of the assets of
the fund.  Although  redemptions in excess of this limitation will also normally
be paid in cash, we reserve the right under unusual circumstances to honor these
redemptions  by  making  payment  in  whole  or in  part in  readily  marketable
securities (a "redemption-in-kind").

If payment is made in securities, the securities,  selected by the fund, will be
valued in the same  manner as they are in  computing  the fund's net asset value
and will be provided without prior notice.

If you expect to make a large redemption and would like to avoid any possibility
of being paid in securities, you may do so by providing 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. Receipt of your
instruction 15 days prior to the  transaction  provides the fund with sufficient
time to raise the cash in an orderly  manner to pay the  redemption  and thereby
minimizes  the  effect  of  the   redemption  on  the  fund  and  its  remaining
shareholders.

Despite the fund's right to redeem fund shares through a redemption-in-kind,  we
do not expect to exercise this option unless the fund has an unusually low level
of cash to meet redemptions and/or is experiencing  unusually strong demands for
its  cash.  Such a demand  might be  caused,  for  example,  by  extreme  market
conditions  that  result in an  abnormally  high  level of  redemption  requests
concentrated in a short period of time.  Absent these or similar  circumstances,
we expect  redemptions in excess of $250,000 to be paid in cash in any fund with
assets of more than $50 million if total redemptions from any one account in any
90-day period do not exceed one-half of 1% of the total assets of the fund.

Signature Guarantee

To protect your accounts from fraud,  some transactions will require a signature
guarantee.  You can obtain a signature  guarantee  from a bank or trust company,
credit union, broker-dealer, securities exchange or association, clearing agency
or savings association, as defined by federal law.

For a more in-depth  explanation of our signature  guarantee  policy,  or if you
live outside the United  States and would like to know how to obtain a signature
guarantee, please consult our Investor Services Guide.

We reserve the right to require a signature guarantee on any transaction,  or to
change this policy at any time.

Special Shareholder Services

We offer  several  services  to make your  account  easier to manage.  These are
listed on the account application.  You will find more information about each of
these services in our Investor Services Guide.

Our special shareholder services include:

Open Order Service

Through our open order service, you may designate a price at which to buy shares
of a  variable-priced  fund by exchange from one of our money market funds, or a
price at which to sell  shares of a  variable-priced  fund by exchange to one of
our money market funds. The designated purchase price must be equal to or lower,
or the designated sale price equal to or higher, than the variable-priced fund's
net asset value at the time the order is placed.  If the designated price is met
within 90 calendar  days, we will execute your exchange order  automatically  at
that  price  (or  better).  Open  orders  not  executed  within  90 days will be
canceled.

If the fund you have selected deducts a distribution  from its share price, your
order  price  will  be  adjusted   accordingly  so  the  distribution  does  not
inadvertently  trigger an open order transaction on your behalf. If you close or
re-register  the  account  from which the shares are to be  redeemed,  your open
order will be canceled.

Because of their  time-sensitive  nature,  open order  transactions are accepted
only by  telephone  or in person.  These  transactions  are  subject to exchange
limitations  described  in  each  fund's  prospectus,  except  that  orders  and
cancellations  received  before 2 p.m.  Central time are effective the same day,
and orders or cancellations received after 2 p.m. Central time are effective the
next business day.

Tax-Qualified Retirement Plans

The fund is available for your  tax-deferred  retirement  plan. Call or write us
and request the appropriate forms for:

     Individual Retirement Accounts (IRAs);

     403(b)  plans  for  employees  of  public  school  systems  and  non-profit
     organizations; or

     Profit  sharing  plans  and  pension  plans  for   corporations  and  other
     employers.

You can also  transfer  your  tax-deferred  plan to us from  another  company or
custodian. Call or write us for a Request to Transfer form.

Important Policies Regarding Your Investments

Every account is subject to policies that could affect your  investment.  Please
refer to the Investor Services Guide for further  information about the policies
discussed below, as well as further detail about the services we offer.

(1)  We reserve the right for any reason to suspend the offering of shares for a
     period  of time,  or to  reject  any  specific  purchase  order  (including
     purchases by exchange).  Additionally,  purchases may be refused if, in the
     opinion  of the  manager,  they  are  of a  size  that  would  disrupt  the
     management of the fund.

(2)  We reserve the right to make changes to any stated investment requirements,
     including  those that relate to purchases,  transfers and  redemptions.  In
     addition,  we also may alter, add to or terminate any investor services and
     privileges.  Any changes may affect all shareholders or only certain series
     or classes of shareholders.

(3)  Shares  being  acquired  must  be  qualified  for  sale in  your  state  of
     residence.

(4)  Transactions  requesting a specific price and date, other than open orders,
     will be  refused.  Once you  have  mailed  or  otherwise  transmitted  your
     transaction instructions to us, they may not be modified or canceled.

(5)  If a  transaction  request is made by a  corporation,  partnership,  trust,
     fiduciary,  agent or unincorporated  association,  we will require evidence
     satisfactory to us of the authority of the individual making the request.

(6)  We have  established  procedures  designed  to assure the  authenticity  of
     instructions  received by telephone.  These procedures  include  requesting
     personal  identification  from  callers,  recording  telephone  calls,  and
     providing written confirmations of telephone transactions. These procedures
     are  designed  to protect  shareholders  from  unauthorized  or  fraudulent
     instructions.  If we do not employ  reasonable  procedures  to confirm  the
     genuineness  of  instructions,  then we may be  liable  for  losses  due to
     unauthorized or fraudulent  instructions.  The company,  its transfer agent
     and manager will not be responsible for any loss due to  instructions  they
     reasonably believe are genuine.

(7)  All signatures  should be exactly as the name appears in the  registration.
     If the owner's name appears in the  registration  as Mary Elizabeth  Jones,
     she should sign that way and not as Mary E. Jones.

(8)  Unusual stock market conditions have in the past resulted in an increase in
     the number of shareholder  telephone calls. If you experience difficulty in
     reaching us during such periods, you may send your transaction instructions
     by mail,  express  mail or  courier  service,  or you may  visit one of our
     Investor  Centers.  You also may use our Automated  Information Line if you
     have requested and received an access code and are not attempting to redeem
     shares.

(9)  If  you  fail  to  provide   us  with  the   correct   certified   taxpayer
     identification  number,  we may reduce any  redemption  proceeds  by $50 to
     cover the  penalty  the IRS will  impose on us for  failure to report  your
     correct taxpayer identification number on information reports.

(10) We will perform special inquiries on shareholder  accounts.  A research fee
     of $15 per hour may be applied.

Reports to Shareholders

At the end of each calendar quarter,  we will send you a consolidated  statement
that summarizes all of your American Century holdings,  as well as an individual
statement for each fund you own that reflects all year-to-date  activity in your
account. You may request a statement of your account activity at any time.

With the exception of most automatic transactions, each time you invest, redeem,
transfer or exchange shares, we will send you a confirmation of the transaction.
See the Investor Services Guide for more detail.

Carefully review all the information relating to transactions on your statements
and  confirmations  to ensure  that your  instructions  were acted on  properly.
Please  notify us  immediately  in writing if there is an error.  If you fail to
provide  notification of an error with reasonable  promptness,  i.e.,  within 30
days of  non-automatic  transactions  or  within  30  days  of the  date of your
consolidated quarterly statement, in the case of automatic transactions, we will
deem you to have ratified the transaction.

No later than January 31 of each year, we will send you reports that you may use
in completing your U.S. income tax return.  See the Investor  Services Guide for
more information.

Each year, we will send you an annual and a semiannual  report  relating to your
fund,  each of which is  incorporated  herein by  reference.  The annual  report
includes audited financial  statements and a list of portfolio  securities as of
the  fiscal  year  end.  The  semiannual  report  includes  unaudited  financial
statements  for the first six  months of the fiscal  year,  as well as a list of
portfolio  securities at the end of the period. You also will receive an updated
prospectus at least once each year.  Please read these materials  carefully,  as
they will help you understand your fund.

Customers of Banks, Broker-Dealers and Other Financial Intermediaries

Information  contained in our Investor  Services Guide pertains to  shareholders
who  invest  directly  with  American   Century  rather  than  through  a  bank,
broker-dealer or other financial intermediary.

If  you   own  or  are   considering   purchasing   fund   shares   through   a
bank,  broker-dealer or other financial intermediary,  your ability to purchase,
exchange and redeem shares will depend on your agreement  with, and the policies
of, such financial intermediary.

You may  reach  one of our  Institutional  Service  Representatives  by  calling
1-800-345-3533 to request information about our funds and services,  to obtain a
current  prospectus or to get answers to any questions  about our funds that you
are unable to obtain through your plan administrator or financial intermediary.





                     Additional Information You Should Know

Share Price

When Share Price Is Determined

The price of your shares is also referred to as their net asset value. Net asset
value is  determined  by  calculating  the  total  value of the  fund's  assets,
deducting  total  liabilities  and  dividing  the result by the number of shares
outstanding.  For all American  Century  funds,  except funds issued by American
Century Target  Maturities  Trust, net asset value is determined as of the close
of regular  trading on the New York Stock Exchange on each day that the Exchange
is open, usually 3 p.m. Central time. The net asset values for Target Maturities
funds are determined one hour prior to the close of the Exchange.

Investments  and  requests to redeem or exchange  shares will  receive the share
price next  determined  after  receipt by us of the  investment,  redemption  or
exchange  request.  For example,  investments and requests to redeem or exchange
shares  received by us or one of our agents or  designees  before the time as of
which the net asset value of the fund is determined,  are effective on, and will
receive the price  determined,  that day.  Investment,  redemption  and exchange
requests received  thereafter are effective on, and receive the price determined
as of the close of the Exchange on the next day the Exchange is open.

Investments  are considered  received only when payment is received by us. Wired
funds are considered  received on the day they are deposited in our bank account
if they are  deposited  before  the time as of which the net asset  value of the
fund is determined.

Investments by telephone  pursuant to your prior  authorization to us to draw on
your bank account are considered received at the time of your telephone call.

Investment and  transaction  instructions  received by us on any business day by
mail  prior  to the  time  as of  which  the  net  asset  value  of the  fund is
determined, will receive that day's price. Investments and instructions received
after that time will receive the price determined on the next business day.

If you  invest  in fund  shares  through  a bank,  financial  advisor  or  other
financial intermediary,  it is the responsibility of your financial intermediary
to  transmit  your  purchase,  exchange  and  redemption  requests to the fund's
transfer agent prior to the applicable  cut-off time for receiving orders and to
make  payment  for any  purchase  transactions  in  accordance  with the  fund's
procedures  or  any  contractual  arrangements  with  the  fund  or  the  fund's
distributor in order for you to receive that day's price.

We have contractual relationships with certain financial intermediaries in which
such intermediaries  represent that they have systems to track the time at which
investment  orders are received and to  segregate  orders  received at different
times.   Based  on  these   representations,   the  fund  has  authorized   such
intermediaries  and their designees to accept purchase and redemption  orders on
the fund's behalf up to the applicable  cut-off time. The fund will be deemed to
have received such orders upon acceptance by the duly  authorized  intermediary,
and such  orders will be priced at the fund's net asset  values next  determined
after acceptance on the fund's behalf by such intermediary.

How Share Price Is Determined

The  valuation of assets for  determining  net asset value may be  summarized as
follows:

The  portfolio  securities  of the fund,  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.

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  exchanged  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 New
York Stock Exchange business day. In addition, trading may take place in various
foreign  markets on Saturdays or on other days when the New York Stock  Exchange
is not  open  and on  which  the  fund's  net  asset  value  is not  calculated.
Therefore,  such  calculation  does 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 fund's  portfolio may be affected on days when
shares of the fund may not be purchased or redeemed.

Where to Find Information About Share Price

The  net  asset  values  of the  Investor  Class  of the  fund  offered  by this
Prospectus is published in leading  newspapers daily. The net asset value of the
Institutional Class may be obtained by calling us.

Distributions

Distributions  from net  investment  income  are  declared  and paid  quarterly.
Distributions from net realized securities gains, if any, generally are declared
and paid annually, usually in December, but the fund may make distributions on a
more frequent basis to comply with the distribution requirements of the Internal
Revenue Code, in all events in a manner  consistent  with the  provisions of the
Investment Company Act.

For  shareholders  investing  through taxable  accounts,  distributions  will be
reinvested unless you elect to receive them in cash.  Distributions of less than
$10 generally will be reinvested. Distributions made shortly after a purchase by
check or ACH may be held up to 15 days. You may elect to have  distributions  on
shares  held in certain  IRAs and  403(b)  plans paid in cash only if you are at
least 59 1/2 years old or permanently and totally disabled.  Distribution checks
normally are mailed within seven days after the record date.  Please consult our
Investor  Services Guide for further  information  regarding  your  distribution
options.

A distribution  on shares of the fund does not increase the value of your shares
or your total  return.  At any given time the value of your shares  includes the
undistributed  net gains, if any,  realized by the fund on the sale of portfolio
securities,  and  undistributed  dividends  and  interest  received,  less  fund
expenses.

Because such gains and dividends are included in the price of your shares,  when
they are  distributed  the price of your  shares is reduced by the amount of the
distribution.  If you buy your shares through a taxable  account just before the
distribution,  you will pay the full price for your  shares,  and then receive a
portion of the purchase price back as a taxable distribution.  See "Taxes," this
page.

Taxes

The fund has  elected to be taxed under  Subchapter  M of the  Internal  Revenue
Code,  which means that to the extent its income is distributed to shareholders,
it pays no income tax.

Tax-Deferred Accounts

If fund shares are purchased through tax-deferred accounts,  such as a qualified
employer-sponsored  retirement or savings plan  (excluding  participant-directed
employer-sponsored   retirement  plans,   which  are  ineligible  to  invest  in
Institutional Class shares),  income and capital gains distributions paid by the
fund generally will not be subject to current  taxation,  but will accumulate in
your account under the plan on a tax-deferred basis.

Taxable Accounts

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 distribution of
long-term capital gain to you with respect to such shares.

Dividends and interest received by the 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 in
respect of investments by non-resident investors.  The foreign taxes paid by the
fund will reduce its dividends.

Distributions are taxable to you regardless of whether they are taken in cash or
reinvested, even if the value of your shares is below your cost. If you purchase
shares  shortly  before  a  distribution,  you  must  pay  income  taxes  on the
distribution,  even though the value of your investment (plus cash received,  if
any) will not have  increased.  In  addition,  the  share  price at the time you
purchase  shares may  include  unrealized  gains in the  securities  held in the
investment portfolio of the fund. If these portfolio securities are subsequently
sold and the gains are realized,  they will, to the extent not offset by capital
losses, be paid to you as a distribution of capital gains and will be taxable to
you as short-term or long-term capital gains.

In  January  of the year  following  the  distribution,  if you own  shares in a
taxable account, you will receive a Form 1099-DIV notifying you of the status of
your distributions for federal income tax purposes.

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.

If you have not complied with certain  provisions  of the Internal  Revenue Code
and Regulations, we are required by federal law to withhold and remit to the IRS
31%  of  reportable  payments  (which  may  include  dividends,   capital  gains
distributions  and redemptions).  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. This charge is not refundable.

Redemption  of shares of the fund  (including  redemptions  made in an  exchange
transaction)  will be a taxable  transaction for federal income tax purposes and
shareholders  generally  will recognize a gain or loss in an amount equal to the
difference  between  the basis of the shares and the amount  received.  Assuming
that  shareholders hold such shares as a capital asset, the gain or loss will be
a  capital  gain  or  loss  and  generally  will  be  considered  long-term,  if
shareholders  have held such  shares for a period of more than 12  months.  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,  resulting in a
postponement of the recognition of such loss for federal income tax purposes.

In addition to the federal income tax  consequences  described above relating to
an  investment  in the  fund,  there  may be other  federal,  state or local tax
considerations  that depend upon the circumstances of each particular  investor.
Prospective  shareholders are therefore urged to consult their tax advisors with
respect to the effect of this investment on their own specific situations.

Management

Investment Management

Under the laws of the State of Maryland,  the Board of Directors is  responsible
for  managing  the  business  and  affairs of the fund.  Acting  pursuant  to an
investment  management  agreement  entered into with the fund,  American Century
Investment  Management,  Inc.  serves as the manager of the fund.  Its principal
place of business is American  Century  Tower,  4500 Main  Street,  Kansas City,
Missouri 64111. The manager has been providing  investment  advisory services to
investment companies and institutional clients since it was founded in 1958.

Barclays Global  Investors,  N.A.,  acting  pursuant to a subadvisory  agreement
among it, American Century Investment  Management,  Inc. and the fund, makes the
day-to-day  investment  decisions  for the fund in  accordance  with the  fund's
investment  objective,  policies and  restrictions  under the supervision of the
manager and the Board of Directors.

The activities of the manager are subject only to directions of the fund's Board
of  Directors.  The manager pays all the expenses of the fund except  brokerage,
taxes,  interest,  fees and  expenses  of the  non-interested  person  directors
(including counsel fees) and extraordinary expenses.

For the services  provided to the  Institutional  Class of the fund, the manager
receives an annual fee of 0.29% of the average net assets of the fund.

For subadvisory services, the manager pays the subadvisor an annual fee of 0.05%
of the average net assets of the fund.

On the first  business day of each month,  the fund pays a management fee to the
manager 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 the fund's  net  assets  during the
previous  month,  and  further  multiplying  that  product  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).

Code of Ethics

The fund and the manager have adopted a Code of Ethics that  restricts  personal
investing practices by employees of the manager and its affiliates.  Among other
provisions,   the  Code  of  Ethics  requires  that  employees  with  access  to
information  about the purchase or sale of securities  in the fund's  portfolios
obtain  preclearance before executing personal trades. With respect to Portfolio
Managers  and  other  investment   personnel,   the  Code  of  Ethics  prohibits
acquisition  of securities  in an initial  public  offering,  as well as profits
derived from the purchase and sale of the same security within 60 calendar days.
These provisions are designed to ensure that the interests of fund  shareholders
come before the interests of the people who manage those funds.

Transfer and Administrative Services

American Century Services Corporation, American Century Tower, 4500 Main Street,
Kansas City, Missouri 64111 acts as transfer agent and dividend-paying agent for
the fund. It provides  facilities,  equipment and personnel to the fund,  and is
paid for such services by the manager.

Certain  recordkeeping  and  administrative  services  that would  otherwise  be
performed  by the transfer  agent may be  performed  by an insurance  company or
other  entity  providing  similar  services for various  retirement  plans using
shares of the fund as a funding medium, by broker-dealers and financial advisors
for their  customers  investing in shares of American  Century or by sponsors of
multi  mutual  fund no- or  low-transaction  fee  programs.  The  manager  or an
affiliate  may  enter  into  contracts  to pay them for such  recordkeeping  and
administrative services out of its unified management fee.

Although there is no sales charge levied by the fund,  transactions in shares of
the  fund may be  executed  by  brokers  or  investment  advisors  who  charge a
transaction-based  fee or other fee for their  services.  Such  charges may vary
among  broker-dealers and financial advisors,  but in all cases will be retained
by the  broker-dealer  or financial  advisor and not remitted to the fund or the
manager.  You  should be aware of the fact that these  transactions  may be made
directly with American Century without incurring such fees.

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 manager.

The  manager  and  transfer  agent are both  wholly  owned by  American  Century
Companies,  Inc.,  which is controlled by James E. Stowers Jr.,  Chairman of the
fund's Board of Directors.

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

Year 2000 Issues

Many of the world's  computer  systems  currently  cannot properly  recognize or
process 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 fund,  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 fund's  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
fund's business,  particularly its ability to provide shareholder services,  may
be hampered.

In  addition,  the  issuers  of  securities  the fund owns  could have Year 2000
computer  problems.  These problems could  negatively  affect the value of their
securities, which, in turn, could impact the fund's performance. The manager 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 manager may consider when making investment decisions, and other factors may
receive greater weight.

Distribution of Fund Shares

The fund's shares are distributed by FDI, a registered  broker-dealer.  FDI is a
wholly-owned  indirect  subsidiary of Boston  Institutional  Group,  Inc.  FDI's
principal business address is 60 State Street, Suite 1300, Boston, Massachusetts
02109.  The Investor Class of shares does not pay any commissions or sales loads
to the distributor or to any other broker-dealers or financial intermediaries in
connection with the distribution of fund shares.

Investors may open accounts with American  Century only through the distributor.
All purchase  transactions  in the fund offered by this Prospectus are processed
by the transfer agent,  which is authorized to accept any instructions  relating
to fund accounts.  All purchase orders must be accepted by the distributor.  All
fees and expenses of FDI in acting as  distributor  for the fund are paid by the
manager.

Further Information About American Century

American Century Capital Portfolios,  Inc., (the  "Corporation"),  the issuer of
the fund, was organized as a Maryland corporation on June 14, 1993.

The corporation is an open-end  management  investment company whose shares were
first offered for sale  September 1, 1993.  Its business and affairs are managed
by its officers under the direction of its Board of Directors.

The principal  office of the fund is American  Century Tower,  4500 Main Street,
P.O. Box 419200, Kansas City, Missouri 64141-6200.  All inquiries may be made by
mail to that address, or by telephone to 1-800-345-2021 (international calls:
816-531-5575).

American Century Capital Portfolios,  Inc. currently issues five series of $0.01
par value  shares.  Each  series is commonly  referred to as a fund.  The assets
belonging to each series of shares are held separately by the custodian.

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

The Investor Class is primarily made  available to retail  investors.  The other
class has different fees, expenses,  and/or minimum investment requirements than
the Advisor Class. The difference in the fee structures among 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 manager 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 Investor Class of shares, call one of our
Investor Services Representatives at 1-800-345-2021.

Except as described below, all classes of shares of the fund will have identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions. The only differences among the Corporation's various 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.

Each share,  irrespective  of series or class,  is entitled to one vote for each
dollar of net asset value applicable to such share on all questions,  except for
those  matters that must be voted on separately by the series or class of shares
affected. Matters affecting only one series or class are voted upon only by that
series or class.

Shares have non-cumulative  voting rights,  which means that the holders of more
than 50% of the votes  cast in an  election  of  directors  can elect all of the
directors  if  they  choose  to do so,  and in such  event  the  holders  of the
remaining  votes will not be able to elect any person or persons to the Board of
Directors.

Unless required by the Investment  Company Act, it will not be necessary for the
fund to hold annual meetings of shareholders.  As a result, shareholders may not
vote each year on the  election of  directors  or the  appointment  of auditors.
However,  pursuant to the fund's by-laws,  the holders of shares representing at
least  10% of the  votes  entitled  to be cast  may  request  the fund to hold a
special meeting of shareholders.  We will assist in the communication with other
shareholders.

We reserve the right to change any of our  policies,  practices  and  procedures
described in this Prospectus, including the Statement of Additional Information,
without  shareholder  approval  except  in  those  instances  where  shareholder
approval is expressly required.





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

Institutional Services:
1-800-345-3533 OR 816-531-5575

Telecommunications Device for the Deaf:
1-800-345-1833 OR 816-444-3038

FAX: 816-340-4655

www.americancentury.com

                        [american century logo[reg.sm])
                                    American
                                     Century
<PAGE>
   
                      STATEMENT OF ADDITIONAL INFORMATION
    


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


                               DECEMBER 30, 1998

                                AMERICAN CENTURY
                                     GROUP

                               Equity Index Fund


   
                      STATEMENT OF ADDITIONAL INFORMATION
    

                               December 30, 1998

                       AMERICAN CENTURY EQUITY INDEX FUND
                                  a series of
                   AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.

   
This Statement is not a prospectus  but should be read in  conjunction  with the
current  Prospectus of American  Century Equity Index Fund, a series of American
Century  Capital  Portfolios,  Inc. dated December 30, 1998.  Please retain this
document for future reference. To obtain a prospectus,  call American Century at
1-800-345-2021 (international calls: 816-531-5575), or write to P.O. Box 419200,
Kansas    City,    Missouri    64141-6200,    or    access    our    Web    site
(www.americancentury.com).
    

TABLE OF CONTENTS

Investment Objective of The Fund
Investment Restrictions
Foreign Securities
Futures Contracts
Cash Management
An Explanation of Fixed Income Securities Ratings
Portfolio Lending
Portfolio Turnover
Officers and Directors
Management
Custodians
Independent Auditors
Capital Stock
Multiple Class Structure
Brokerage
Performance Advertising
Redemptions In Kind
Holidays

Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.




Investment Objectives of The Fund

The investment  objective of the fund is described on page 2 of its  prospectus.
In seeking to achieve its objective,  the fund must conform to certain policies,
some  of  which  are  designated  in the  Prospectus  or in  this  Statement  of
Additional   Information  as   "fundamental"   and  cannot  be  changed  without
shareholder approval.

Investment Restrictions

Additional  fundamental  policies  that may be  changed  only  with  shareholder
approval provide as follows:

(1)  The fund shall not issue senior  securities,  except as permitted under the
     Investment Company Act of 1940.

(2)  The fund shall not borrow money,  except that the fund may borrow money 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).

(3)  The fund  shall  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.

(4)  The fund shall not purchase or sell real estate unless acquired as a result
     of  ownership of  securities  or other  instruments.  This policy shall not
     prevent the fund from investment 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.

(5)  The fund shall 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.

(6)  The fund shall 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.

(7)  The  fund  shall  not  invest  for  purposes  of  exercising  control  over
     management.

(8)  The fund shall 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), except to the
     extent that the S&P 500 index is also concentrated in securities of issuers
     in a particular industry.

In  addition,  the fund has adopted  the  following  non-fundamental  investment
restrictions:

(1)  As an operating policy, the fund shall not purchase  additional  investment
     securities at any time during which outstanding borrowings exceed 5% of the
     total assets of the fund.

(2)  As an  operating  policy,  the fund may not  purchase any security or enter
     into a  repurchase  agreement  if,  as a  result,  more than 15% of its net
     assets  (10% for  money  market  funds)  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.

(3)  As an operating policy, the fund shall 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  transaction  in futures
     contracts  and  options  are not deemed to  constitute  selling  securities
     short.

(4)  As an operating policy,  the fund shall not purchase  securities on margin,
     except that the fund may 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.

The  Investment  Company  Act  imposes  certain  additional   restrictions  upon
acquisition by the fund of securities  issued by insurance  companies,  brokers,
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 Securities and Exchange Commission
nor any other agency of the federal  government or state agency  participates in
or  supervises  the  management  of the  fund  or its  investment  practices  or
policies.

Foreign Securities

The fund may  invest a small  percentage  of its  assets  in the  securities  of
foreign issuers. The manager defines "foreign issuer" as an issuer of securities
that is domiciled  outside the United States,  derives at least 50% of its total
revenue from  production  or sales  outside of the United  States,  and/or whose
principal  trading market is outside the United States.  The principal  business
activities of such issuers will be located in developed countries.

The fund may make such  investments  either  directly in foreign  securities  or
indirectly by purchasing depositary receipts for foreign securities.  Depositary
receipts or depositary shares or similar instruments  (collectively  "depositary
receipts") are securities that are listed on exchanges or quoted in the domestic
over-the-counter  markets  in  one  country  but  represent  shares  of  issuers
domiciled in another country.  Direct  investments in foreign  securities may be
made either on foreign securities exchanges or in the over-the-counter markets.

Subject to its investment objective and policies,  the fund may invest in common
stocks,  convertible  securities,  preferred stocks, bonds, notes and other debt
securities of foreign  issuers,  and debt securities of foreign  governments and
their  agencies.  The  fund  will  limit  its  purchase  of debt  securities  to
investment-grade obligations.

Investments in foreign  securities may present  certain risks,  including  those
resulting from  fluctuations in currency  exchange rates,  future  political and
economic  developments,  clearance and settlement risk, reduced  availability of
public  information  concerning  issuers,  and the lack of  uniform  accounting,
auditing,   financial   reporting   standards  and  practices  and  requirements
comparable to those applicable to domestic issuers.

Futures Contracts

As  described  in the  Prospectus,  the fund may enter into  futures  contracts.
Unlike when the fund purchases securities,  no purchase price for the underlying
securities is paid by the fund at the time it purchases a futures contract. When
a futures  contract is entered  into,  both the buyer and seller of the contract
are  required to deposit  with a futures  commission  merchant  ("FCM")  cash or
high-grade  debt securities in an amount equal to a percentage of the contract's
value,  as set by the exchange on which the  contract is traded.  This amount is
known as "initial margin" and is held by the fund's custodian for the benefit of
the FCM in the event of any  default  by the fund in the  payment  of any future
obligations.

The value of the futures  contract is adjusted daily to reflect the  fluctuation
of the value of the  underlying  securities  that comprise the index.  This is a
process  known as marking  the  contract  to  market.  If the value of a party's
position declines,  that party is required to make additional "variation margin"
payments to the FCM to settle the change in value. The party that has a gain may
be entitled to receive all or a portion of this amount.  The FCM may have access
to the fund's margin account only under specified conditions of default.

The fund  maintains  from  time to time a  percentage  of its  assets in cash or
high-grade  liquid  securities to provide for  redemptions or to hold for future
investment in securities consistent with the fund's investment  objectives.  The
fund may enter into index futures  contracts as an efficient means to expose the
fund's cash position to the domestic  equity market.  The manager  believes that
the purchase of futures  contracts is an efficient means to effectively be fully
invested in equity securities.

The fund intends to comply with guidelines of eligibility for exclusion from the
definition  of the term  "commodity  pool  operator"  adopted  by the  Commodity
Futures Trading Commission and the National Futures Association,  which regulate
trading in the futures markets.  To do so, the aggregate initial margin required
to establish  such  positions  may not exceed 5% of the fair market value of the
fund's net assets,  after taking into account  unrealized profits and unrealized
losses on any contracts it has entered into.

The principal risks generally associated with the use of futures include but are
not limited to:

*    the  possible  absence  of a liquid  secondary  market  for any  particular
     instrument  will make it  difficult or  impossible  to close out a position
     when desired (liquidity risk);

*    the risk that the counter  party to the  contract  will fail to perform its
     obligations  or the risk of bankruptcy of the FCM holding  margin  deposits
     (counter party risk);

*    the risk that the index of securities to which the futures contract relates
     will go down in value (market risk); and

*    adverse  price  movements  in the  underlying  index  can  result in losses
     substantially  greater  than the  value of the  fund's  investment  in that
     instrument  because only a fraction of a contract's value is required to be
     deposited as initial margin (leverage risk);  provided,  however,  that the
     fund may not  purchase  leveraged  futures,  so there is no  leverage  risk
     involved in the fund's use of futures.

A liquid  secondary  market is necessary  to close out a contract.  The fund may
seek to manage  liquidity  risk by investing  only in  exchange-traded  futures.
Exchange-traded  index  futures  pose less risk that  there will not be a liquid
secondary market than privately negotiated  instruments.  Through their clearing
corporations, the futures exchanges guarantee the performance of the contracts.

Futures  contracts  are  generally  settled  within a day from the date they are
closed out, as compared to three days for most types of equity securities.  As a
result,  futures  contracts can provide more liquidity than an investment in the
actual underlying securities.  Nevertheless, there is no assurance that a liquid
secondary  market  will  exist  for  any  particular  futures  contract  at  any
particular time.  Liquidity may also be influenced by an exchange-imposed  daily
price fluctuation  limit,  which halts trading if a contract's price moves up or
down more than the established  limit on any given day. On volatile trading days
when the price fluctuation  limit is reached,  it may be impossible for the fund
to enter into new  positions or close out existing  positions.  If the secondary
market for a futures contract is not liquid because of price fluctuation  limits
or otherwise, the fund may not be able to promptly liquidate unfavorable futures
positions  and  potentially  could be  required  to  continue  to hold a futures
position  until  liquidity in the market is  re-established.  As a result,  such
fund's access to other assets held to cover its futures  positions also could be
impaired until liquidity in the market is re-established.

The fund  manages  counter-party  risk by  investing  in  exchange-traded  index
futures.  In the event of the  bankruptcy of the FCM that holds margin on behalf
of the fund, that fund may be entitled to the return of margin owed to such fund
only in  proportion  to the amount  received by the FCM's other  customers.  The
manager will attempt to minimize the risk by monitoring the  creditworthiness of
the FCMs with which the fund does business.

The  prices  of  futures  contracts  depend  primarily  on the  value  of  their
underlying  instruments.  As a result,  the  movement  in market  price of index
futures contracts will reflect the movement in the aggregate market price of the
entire portfolio of securities  comprising the index.  The fund's  investment in
futures contracts may not correlate precisely with the performance of the fund's
other equity  investments.  However,  the manager believes that an investment in
index futures will more closely  reflect the investment  performance of the fund
than an investment in U.S.  government or other highly liquid,  short-term  debt
securities,  which is where the cash  position  of the fund would  otherwise  be
invested.

The  policy of the fund is to invest  in equity  securities.  There may be times
when the manager deems it  advantageous to the fund not to invest excess cash in
index  futures,  but such decision will generally not be the result of an active
effort to use futures to time or anticipate market movements in general.

Cash Management

Corporate Obligations

Commercial  paper is issued by large  corporations  to raise  cash.  The maximum
maturity for commercial  paper is 270 days,  although most  commercial  paper is
issued  with  maturities  of 60 days or less.  Commercial  paper is offered at a
discount with its full face value paid at maturity.

Although commercial paper rates generally fluctuate with the value of the London
Interbank  Offered Rate  (LIBOR),  Treasury  bills,  bankers'  acceptances,  and
certificates  of deposit,  they are also influenced by (1) the issuer's size and
credit rating and (2) the commercial paper maturity date.

Smaller or lower-rated  corporations may tap the commercial paper market through
asset-backed  commercial paper programs. In a typical program, a special purpose
corporation (a SPC),  created and/or  serviced by a bank, uses the proceeds from
an  issuance  of  commercial  paper  to  purchase  receivables  from one or more
corporations  (sellers).  The sellers  transfer  their interest in the cash flow
from the receivables to the SPC, and this cash is used to pay interest and repay
principal on the commercial  paper.  Letters of credit may be available to cover
the risk that the cash flow from the receivables will not be sufficient to cover
the maturing commercial paper.

Bank Obligations

Negotiable  certificates of deposit (CDs) evidence a bank's  obligation to repay
money deposited with it for a specified period of time.

Bankers'  acceptances are used to finance foreign commercial trade.  Issued by a
bank with an importer's name on them,  these  instruments  allow the importer to
back up its own pledge to pay for  imported  goods with a bank's  obligation  to
cover the transaction if the importer fails to do so.

Bank notes are senior unsecured  promissory notes issued in the United States by
domestic commercial banks.

The bank  obligations  the fund may buy generally are not insured by the FDIC or
any other insurer.

Government Obligations

U.S.  Treasury  securities  differ  from one  another in their  interest  rates,
maturities,  and issuance and interest  payment  schedules.  Treasury bills have
initial  maturities of one year or less;  Treasury notes,  two to ten years; and
Treasury bonds, more than ten years.

A number of U.S.  government  agencies  and  government-sponsored  organizations
issue debt  securities.  These  agencies  generally  are  created by Congress to
fulfill a specific  need,  such as providing  credit for home buyers or farmers.
Among these  agencies are the Federal  Home Loan Banks,  the Federal Farm Credit
System,  the Student Loan  Marketing  Association,  and the  Resolution  Funding
Corporation.

Some  obligations   issued  or  guaranteed  by  U.S.   government   agencies  or
instrumentalities  are  supported  by the  full  faith  and  credit  of the U.S.
government;  others are  supported by the right of the issuer to borrow from the
Treasury; others are supported by the U.S. government's  discretionary authority
to purchase certain obligations of the agency or instrumentality, and others are
supported only by the credit of the issuing agency or instrumentality.

Supranational  organizations (generally,  multilateral lending institutions,  or
MLIs)  are  created  by  governments  to  promote  economic  reconstruction  and
development.  An MLI's  creditworthiness  is based not only on its own financial
performance, but on the willingness and ability of member governments to support
its lending activities.

While  maintaining  strict  financial  controls to ensure  liquidity  and strong
creditworthiness,  MLIs finance their operations in the same manner as any other
financial  institution,   with  a  combination  of  short-  and  long-term  debt
obligations.  Short-term  debt is  usually  issued  in the  form  of  short-term
discount notes and commercial paper.

An Explanation of Fixed Income Securities Ratings

   
As described in the Prospectus,  the fund may invest in fixed income securities.
The  fund  may  invest  only  in  investment-grade  obligations.   Fixed  income
securities  ratings provide the manager with a current  assessment of the credit
rating of an issuer with respect to a specific fixed income security.
    

The following  summarizes the ratings used by Standard & Poor's  Corporation for
bonds:

AAA - This  is the  highest  rating  assigned  by S&P to a debt  obligation  and
indicates an extremely strong capacity to pay interest and repay principal.

AA - Debt rated AA is considered to have a very strong  capacity to pay interest
and repay principal and differs from AAA issues only to a small degree.

A - Debt rated A has a strong  capacity  to pay  interest  and repay  principal,
although it is somewhat more  susceptible  to the adverse  effects of changes in
circumstances and economic conditions than debt in higher-rated categories.

BBB - Debt rated BBB is regarded as having an adequate  capacity to pay interest
and  repay  principal.   Whereas  it  normally  exhibits   adequate   protection
parameters,  adverse  economic  conditions  or changing  circumstances  are more
likely to lead to a weakened  capacity to pay interest and repay  principal  for
debt in this category than in higher-rated categories.

BB - Debt  rated BB has less  near-term  vulnerability  to  default  than  other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse  business,  financial  or  economic  conditions,  which  could  lead  to
inadequate  capacity to meet timely  interest  and  principal  payments.  The BB
rating  category  is also  used for debt  subordinated  to  senior  debt that is
assigned an actual or implied BBB- rating.

B - Debt rated B has a greater  vulnerability  to default but  currently has the
capacity to meet interest payments and principal  repayments.  Adverse business,
financial or economic  conditions  will likely impair capacity or willingness to
pay interest and repay  principal.  The B rating  category is also used for debt
subordinated  to senior  debt that is  assigned  an actual or  implied BB or BB-
rating.

CCC - Debt rated CCC has a currently  identifiable  vulnerability to default and
is dependent upon favorable business,  financial and economic conditions to meet
timely  payment of interest and repayment of principal.  In the event of adverse
business,  financial  or  economic  conditions,  it is not  likely  to have  the
capacity to pay interest and repay  principal.  The CCC rating  category is also
used for debt  subordinated to senior debt that is assigned an actual or implied
B or B- rating.

CC - The rating CC typically is applied to debt subordinated to senior debt that
is assigned an actual or implied CCC rating.

C - The rating C typically is applied to debt  subordinated  to senior debt that
is assigned an actual or implied CCC- debt  rating.  The C rating may be used to
cover a situation where a bankruptcy  petition has been filed,  but debt service
payments are continued.

CI - The rating CI is  reserved  for income  bonds on which no interest is being
paid.

D - Debt  rated D is in  payment  default.  The D rating  category  is used when
interest payments or principal payments are not made on the date due even if the
applicable grace period has not expired,  unless S&P believes that such payments
will be made during such grace  period.  The D rating also will be used upon the
filing of a bankruptcy petition if debt service payments are jeopardized.

To provide more detailed  indications of credit quality,  the ratings from AA to
CCC may be  modified by the  addition  of a plus or minus sign to show  relative
standing within these major rating categories.

The following summarizes the ratings used by Moody's Investors Service, Inc. for
bonds:

Aaa - Bonds that are rated Aaa are judged to be of the best quality.  They carry
the smallest  degree of investment  risk and are generally  referred to as "gilt
edge." Interest payments are protected by a large or exceptionally stable margin
and  principal is secure.  While the various  protective  elements are likely to
change,  such  changes  as can be  visualized  are most  unlikely  to impair the
fundamentally strong position of such issues.

Aa - Bonds that are rated Aa are judged to be of high quality by all  standards.
Together with the Aaa group they comprise what are generally known as high-grade
bonds.  They are rated lower than the best bonds  because  margins of protection
may not be as large as in Aaa securities,  or fluctuation of protective elements
may be of greater  amplitude,  or there may be other elements  present that make
the long-term risk appear somewhat larger than the Aaa securities.

A - Bonds that are rated A possess many favorable investment  attributes and are
to be considered as upper-medium-grade  obligations.  Factors giving security to
principal and interest are considered adequate, but elements may be present that
suggest a susceptibility to impairment some time in the future.

Baa - Bonds that are rated Baa are considered as medium-grade obligations (i.e.,
they are neither highly  protected nor poorly  secured).  Interest  payments and
principal  security  appear  adequate  for the present  but  certain  protective
elements may be lacking or may be  characteristically  unreliable over any great
length of time. Such bonds lack outstanding  investment  characteristics and, in
fact, have speculative characteristics as well.

Ba - Bonds  that are rated Ba are  judged to have  speculative  elements;  their
future cannot be considered  as well assured.  Often the  protection of interest
and  principal  payments may be very  moderate and thereby not well  safeguarded
during  both  good  and  bad  times  in  the  future.  Uncertainty  of  position
characterizes bonds in this class.

B - Bonds  that are rated B  generally  lack  characteristics  of the  desirable
investment.  Assurance of interest and principal  payments or of  maintenance of
other terms of the contract over any long period of time may be small.

Caa - Bonds  that are  rated Caa are of poor  standing.  Such  issues  may be in
default or there may be present  elements of danger with respect to principal or
interest.

Ca - Bonds that are rated Ca represent  obligations  that are  speculative  in a
high degree. Such issues are often in default or have other marked shortcomings.

C - Bonds that are rated C are the  lowest-rated  class of bonds,  and issues so
rated can be regarded as having  extremely  poor prospects of ever attaining any
real investment standing.

Moody's applies  numerical  modifiers 1, 2 and 3 in each generic rating category
from Aa through B. The  modifier 1 indicates  that the bond being rated ranks in
the higher end of its  generic  rating  category;  the  modifier 2  indicates  a
mid-range  ranking;  and the  modifier 3 indicates a ranking in the lower end of
that generic rating category.

Portfolio Lending

In order  to  realize  additional  income,  the  fund  may  lend  its  portfolio
securities.  Such loans may not exceed one-third of the fund's net assets valued
at market 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.

Portfolio Turnover

The fund will not generally  trade in securities  for short-term  profits,  but,
when circumstances warrant,  securities may be purchased and sold without regard
to the length of time the security has been held.  Accordingly,  the fund's rate
of portfolio turnover at times may be substantial.

The fund intends to purchase a given security  whenever the manager  believes it
will  contribute to the stated  objective of the fund, even if the same security
has only recently been sold. In selling a given  security,  the manager keeps in
mind that profits from sales of securities are taxed to shareholders. Subject to
this  consideration,  the fund will sell a given security regardless of how long
it has been  held in the  portfolio  and  whether  the sale is at a gain or at a
loss, if the manager  believes that the security is not  fulfilling its purpose.
The manager may reach this conclusion  because,  among other things,  it did not
live up to the  manager's  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 fund may decrease
or eliminate  entirely its equity  position and increase its cash position,  and
when a rise in price  levels is  anticipated,  the fund may  increase its equity
position and  decrease its cash  position.  However,  the fund will,  under most
circumstances,  be essentially  fully  invested in equity  securities and equity
equivalents.

Since  investment  decisions are based on the  anticipated  contribution  of the
security in question to the fund's  objectives,  the manager  believes  that the
rate of portfolio  turnover is irrelevant  when it believes a change is in order
to achieve those objectives.  As a result,  the fund's annual portfolio turnover
rate  cannot be  anticipated  and may be  comparatively  high.  This  disclosure
regarding  portfolio  turnover is a statement of  fundamental  policy and may be
changed only by a vote of the shareholders.

Since the manager does not take  portfolio  turnover rate into account in making
investment  decisions,  (1) the manager has 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  a
representation of the rates that will be attained in the future.

Officers and Directors

The principal officers and directors ofAmerican Century Capital Portfolios, Inc.
(the  "Corporation"),  their  ages  (listed  in  parentheses),  their  principal
business  experience during the past five years, and their affiliations with the
fund's manager,  American Century Investment  Management,  Inc. and its transfer
agent, American Century Services  Corporation,  are listed below. The address at
which each  director  and officer  below may be  contacted  is American  Century
Tower,  4500 Main Street,  Kansas City,  Missouri  64111.  All persons  named as
officers of the  Corporation  also serve in similar  capacities  for other funds
advised by the manager. Those directors that are "interested persons" as defined
in the Investment Company Act of 1940 are indicated by an asterisk(*).

James E. Stowers Jr.* (74), Chairman of the Board and Director;  Chairman of the
Board, Director and controlling shareholder of American Century Companies, Inc.,
parent corporation of American Century Investment Management,  Inc. and American
Century  Services  Corporation;  Chairman of the Board and  Director of American
Century Investment  Management,  Inc. and American Century Services Corporation;
father of James E. Stowers III.

James E. Stowers III* (39),  Director;  Chief  Executive  Officer and  Director,
American Century Companies,  Inc., American Century Investment Management,  Inc.
and American Century Services Corporation.

Thomas A. Brown (58), Director;  Director of Plains States Development,  Applied
Industrial Technologies, Inc., a corporation engaged in the sale of bearings and
power transmission products.

Robert W. Doering, M.D. (66), Director; retired, formerly general surgeon.

Andrea C. Hall,  Ph.D.  (53),  Director;  Senior Vice  President  and  Associate
Director, Midwest Research Institute.

D.D.  (Del) Hock (63),  Director;  retired,  formerly  Chairman,  Public Service
Company of Colorado;  Director, Service Tech, Inc., Hathaway Corporation, and J.
D. Edwards & Company.

Donald H. Pratt (60),  Vice  Chairman of the Board and  Director;  President and
Director, Butler Manufacturing Company.

Lloyd T. Silver Jr. (70),  Director;  Consultant,  and retired  Chairman of LSC,
Inc.

M. Jeannine  Strandjord  (52),  Director;  Senior Vice  President and Treasurer,
Sprint Corporation; Director, DST Systems, Inc.

George A. Rio (43),  President;  Executive Vice President and Director of Client
Services, Funds Distributor, Inc. (FDI). Prior to joining FDI, Mr. Ingram served
as Senior Vice President and Senior Key Account  Manager for Putnam Mutual Funds
(from  June 1995 to March  1998).  Before  that he served as  Director  Business
Development for First Data  Corporation  (May 1994 to June 1995) and Senior Vice
President and Manager of Client  Services and Director of Internal  Audit at The
Boston Company, Inc. (September 1983 to May 1994).

Maryanne Roepke, CPA (42), Vice President,  Treasurer,  and Principal Accounting
Officer; Senior Vice President, American Century Services Corporation.

Patrick A. Looby (39), Vice President; Vice President, American Century Services
Corporation.

Christopher J. Kelley (33), Vice President; Vice President and Associate General
Counsel of FDI. Prior to joining FDI, Mr. Kelley served as Assistant  Counsel at
Forum  Financial  Group  (from  April 1994 to July  1996) and  before  that as a
compliance officer for Putnam Investments (from 1992 to 1994).

Mary A. Nelson (34),  Vice  President;  Vice  President  and Manager of Treasury
Services  and  Administration  of FDI.  Prior to  joining  FDI,  Ms.  Nelson was
Assistant Vice President and Client Manager for The Boston  Company,  Inc. (from
1989 to 1994).

Merele  A. May (35),  Controller;  Vice  President,  American  Century  Services
Corporation.

John Zindel,  CPA (31),  Tax Officer;  Vice  President and Director of Taxation,
American Century Services Corporation (1996); Tax Manager,  Price Waterhouse LLP
(from 1989 to 1996).

The Board of Directors has established four standing  committees,  the Executive
Committee,  the Audit  Committee,  the  Compliance  Committee and the Nominating
Committee.

Messrs.  Stowers Jr.  (chair),  Stowers III, and Pratt  constitute the Executive
Committee of the Board of Directors. The committee performs the functions of the
Board of Directors between meetings of the Board,  subject to the limitations on
its 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 full
Board.

Ms. Strandjord (chair), Dr. Doering and Mr. Hock constitute the Audit Committee.
The functions of the Audit Committee include  recommending the engagement of the
fund's independent accountants,  reviewing the arrangements for and scope of the
annual  audit,  reviewing  comments  made by the  independent  accountants  with
respect to the internal controls and the considerations  given or the connective
action taken by  management,  and reviewing  nonaudit  services  provided by the
independent accountants.

Messrs.  Brown  (chair),  Pratt,  Silver and Dr. Hall  constitute the Compliance
Committee.  The  functions of the  Compliance  Committee  include  reviewing the
results of the fund's compliance  testing program,  reviewing  quarterly reports
from  the  manager  to  the  Board  regarding  various  compliance  matters  and
monitoring the implementation of the fund's Code of Ethics, including violations
thereof.

The  Nominating   Committee  has  as  its  principal  role   consideration   and
recommendation  of  individuals  for  nomination  as  directors.  The  names  of
potential  director  candidates  are drawn from a number of  sources,  including
recommendations  from members of the Board,  management and  shareholders.  This
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. The members of the nominating committee are Messrs. Pratt (chair),
Hock and Stowers III.

The Directors of the corporation also serve as Directors for other funds advised
by the manager.  Each Director who is not an  "interested  person" as defined in
the Investment  Company Act receives for service as a member of the Board of six
of such  companies  an annual  director's  fee of  $48,000,  a fee of $1,000 per
regular  Board  meeting  attended,  $500 per special Board meeting and committee
meeting attended,  and $250 per telephone meeting. In addition,  those Directors
who are not "interested  persons" who serve as chair of a committee of the Board
of Directors  receive an  additional  $2,000 for such  services.  These fees and
expenses  are  divided  among the six  investment  companies  based  upon  their
relative  net  assets.  Under the  terms of the  management  agreement  with the
manager, the fund is responsible for paying such fees and expenses.

Set forth below is the aggregate  compensation paid for the periods indicated by
the Corporation  and by the American  Century family of funds as a whole to each
Director who is not an "interested  person" as defined in the Investment Company
Act.



                              Aggregate         Total Compensation from
                            Compensation          the American Century
Director                from the corporation1       Family of Funds2

Thomas A. Brown                 $3,144                   $60,000
Robert W. Doering, M.D.          3,022                    49,500
Andrea C. Hall, Ph.D.3           1,302                     8,833
D.D. (Del) Hock                  3,021                    49,500
Linsley L. Lungaard              1,791                    42,333
Donald H. Pratt                  3,144                    60,000
Lloyd T. Silver Jr.              3,021                    49,000
M. Jeannine Strandjord           3,072                    43,833

1    Includes  compensation  actually paid by the corporation  during the fiscal
     year ended March 31, 1998.

2    Includes  compensation paid by the thirteen  investment  company members of
     the American  Century  family of funds for the calendar year ended December
     31, 1997

3    Dr. Hall replaced Mr. Lundgaard as a director effective November 1, 1997.

Those  Directors  who are  "interested  persons,"  as defined in the  Investment
Company Act,  receive no fee as such for serving as a Director.  The salaries of
such individuals, who also are officers of the fund, are paid by the manager.

Management

A description of the  responsibilities  and method of compensation of the fund's
manager,   American  Century  Investment  Management,   Inc.,  appears  in  each
Prospectus under the caption "Management."

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 (i) the fund's
Board of Directors or by the vote of a majority of outstanding votes (as defined
in the  Investment  Company  Act)  and  (ii) by the  vote of a  majority  of the
Directors  who are not parties to the  agreement  or  interested  persons of the
manager,  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 fund's  Board of  Directors,  or by a vote of the
fund's shareholders, on 60 days' written notice to the manager and that it shall
be automatically terminated if it is assigned.

The  management  agreement  provides that the manager shall not be liable to the
fund or its 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 manager  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.

The  management  agreement  between  the fund and the manager  contemplates  the
retention of a subadvisor by the manager.

Certain  investments  may be appropriate for the fund and also for other clients
advised by the manager.  Investment decisions for the fund 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 in different amounts and
at  different  times for more than one but less than all  clients.  In addition,
purchases  or sales of the same  security may be made for two or more clients on
the same date.  Such  transactions  will be allocated  among clients in a manner
believed by the manager 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 the fund.

The manager may aggregate purchase and sale orders of the fund with purchase and
sale orders of its other clients when the manager believes that such aggregation
provides the best  execution  for the fund.  The fund's  Board of Directors  has
approved the policy of the manager with respect to the  aggregation of portfolio
transactions.  Where  portfolio  transactions  have  been  aggregated,  the fund
participates 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 manager will
not  aggregate  portfolio  transactions  of the fund  unless  it  believes  such
aggregation is consistent  with its duty to seek best execution on behalf of the
fund  and the  terms  of the  management  agreement.  The  manager  receives  no
additional compensation or remuneration as a result of such aggregation.

In  addition to  managing  the fund the manager is also acting as an  investment
adviser to eleven  institutional  accounts and to twelve  registered  investment
companies:  American  Century  Mutual  Funds,  Inc.,  American  Century  Premium
Reserves,  Inc.,  American  Century World Mutual Funds,  Inc.,  American Century
Strategic Asset Allocations,  Inc., American Century Variable Portfolios,  Inc.,
American Century Municipal Trust,  American Century  Quantitative  Equity Funds,
American Century  International  Bond Funds,  American Century Investment Trust,
American Century  Government  Income Trust,  American Century Target  Maturities
Trust, and American Century California Tax-Free and Municipal Funds.

American Century Services Corporation  provides physical  facilities,  including
computer hardware and software and personnel, for the day-to-day  administration
of the fund and the manager pays American Century Services  Corporation for such
services.

As stated in each Prospectus,  all of the stock of American  Century  Investment
Management,  Inc. and American Century Services Corporation is owned by American
Century Companies, Inc.

Custodians

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  fund.  The  custodians  take  no  part in
determining the investment  policies of the fund or in deciding which securities
are  purchased  or sold by the fund.  The fund,  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, 1010 Grand Avenue, Suite 400, Kansas City, Missouri 64106
are the  independent  auditors of the fund. As the  independent  auditors of the
fund,  Deloitte & Touche LLP will provide  services  including  (1) audit of the
annual financial statements,  (2) assistance and consultation in connection with
SEC filings  and (3) review of the annual  federal  income tax return  filed for
each fund by American Century.

Capital Stock

The Corporation's capital stock is described in the Prospectus under the heading
"Further Information About American Century."

   
The  Corporation  currently  has five  series  of shares  outstanding.  The fund
currently  issues two classes of shares,  the Investor  Class and  Institutional
Class. The other four funds are further divided into three or more classes.  See
"Multiple Class  Structure,"  this page. The Corporation may in the future issue
one or more  additional  series  or  classes  of  shares  without  a vote of the
shareholders.  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  profits  (or losses) of
investment  and other  assets  held for that  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 will have
equal  redemption   rights.   Each  share,   when  issued,  is  fully  paid  and
non-assessable.  Each share, irrespective of series or class, is entitled to one
vote for  each  dollar  of net  asset  value  represented  by such  share on all
questions.
    

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

Multiple Class Structure

The fund'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
fund may issue up to four classes of shares: an Investor Class, an Institutional
Class, a Service Class and an Advisor Class. Currently,  the fund issues only an
Investor Class of shares.

The Investor Class is made available to investors directly,  without any load or
commission, for a single 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 manager as Investor Class  shareholders.  As a
result,  the manager is able to charge these classes a lower  management fee. In
addition to the management fee,  however,  Service Class shares are subject to a
Shareholder  Services Plan, and the Advisor Class shares are subject to a Master
Distribution and Shareholder  Services Plan. Both plans have been adopted by the
fund's Board of Directors and initial  shareholder in accordance with Rule 12b-1
adopted by the SEC under the Investment Company Act.

Taxes

Taxation of Debt Instruments

For Federal income tax purposes,  debt  securities  purchased by the fund may be
treated as having original issue discount. Original issue discount can generally
be defined as the excess of the stated  redemption  price at  maturity of a debt
obligation over the issue price.  Original issue discount is treated as interest
earned by the fund for Federal income tax purposes, whether or not any income is
actually received, and therefore is subject to the distribution  requirements of
the  Code.   However,   original  issue  discount  with  respect  to  tax-exempt
obligations generally will be excluded from the fund's taxable income.  Original
issue discount with respect to tax-exempt securities is accrued and added to the
adjusted tax basis of such  securities for purposes of determining  gain or loss
upon sale or at maturity.  Generally,  the amount of original issue discount for
any period is  determined  on the basis of a constant  yield to  maturity  which
takes into account the  compounding of accrued  interest.  Under section 1286 of
the Code, an  investment  in a stripped  bond or stripped  coupon will result in
original issue discount.

The fund may purchase debt  securities at a discount  which exceeds the original
issue price plus  previously  accrued  original issue discount  remaining on the
securities,  at the time of purchase. This additional discount represents market
discount for income tax  purposes.  Generally,  market  discount is accrued on a
daily basis.

The fund may purchase debt securities at a premium, i.e., at a purchase price in
excess of face amount. With respect to tax-exempt  securities,  the premium must
be amortized  to the  maturity  date but no deduction is allowed for the premium
amortization.  Instead,  the  amortized  bond  premium  will  reduce  the fund's
adjusted tax basis in the securities. For taxable securities, the premium may be
amortized if the fund so elects.  The amortized premium on taxable securities is
allowed as a deduction, and, generally for securities issued after September 27,
1985, must be amortized under an economic accrual method.

Foreign Holders

A foreign  holder  is a person  or entity  that,  for U.S.  Federal  income  tax
purposes,  is a nonresident alien individual,  a foreign corporation,  a foreign
partnership,  or a  non-resident  fiduciary of a foreign  estate or trust.  If a
distribution  of the fund's  taxable income  (without  regard to its net capital
gain) to a foreign  holder is not  effectively  connected  with a U.S.  trade of
business  carried  on by the  investor,  such  distribution  will be  subject to
withholding  tax at a 30%  rate or such  lower  rate as may be  specified  by an
applicable  income tax treaty.  In  addition,  distributions  from the fund will
generally be subject to information reporting.

The tax  consequences  to a foreign holder  entitled to claim the benefits of an
applicable  tax treaty may be different  from those  described  herein.  Foreign
holders should consult their own tax advisers to determine whether investment in
the fund is appropriate.

Brokerage

Under the management agreement between the fund and the manager, the manager has
the responsibility of selecting brokers to execute portfolio  transactions.  The
fund's policy is to secure the most favorable  prices and execution of orders on
its portfolio transactions.  So long as that policy is met, the manager may take
into  consideration  the factors  discussed  below when selecting  brokers.  The
manager has delegated  responsibility for selecting brokers to execute portfolio
transactions  to the subadvisor  under the terms of the  Investment  Subadvisory
Agreement.

The manager or the  subadvisor,  as the case may be,  receives  statistical  and
other  information  and services  without  cost from  brokers and  dealers.  The
manager or the subadvisor evaluates such information and services, together with
all  other  information  that it may  have,  in  supervising  and  managing  the
investments  of the fund.  Because  such  information  and  services may vary in
amount,  quality and  reliability,  their influence in selecting  brokers varies
from  none to very  substantial.  The  manager  and the  subadvisor  propose  to
continue to place some of the fund's brokerage business with one or more brokers
who provide information and services.  Such information and services provided to
the  manager  and the  subadvisor  will be in addition to and not in lieu of the
services  required to be performed  for the fund by the manager and  subadvisor.
Neither the  manager  nor the  subadvisor  utilizes  brokers  who  provide  such
information  and  services  for the purpose of reducing the expense of providing
required services to the fund.

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

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 fund,
the manager and the subadvisor believe that the facilities, expert personnel and
technological  systems of a broker enable the fund 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 fund normally places its 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.

On occasions  when the manager deems the purchase or sale of a security to be in
the best interests of the fund as well as other fiduciary accounts,  the manager
or the  subadvisor  may  aggregate  the security to be sold or purchased for the
fund with those to be sold or  purchased  for other  accounts in order to obtain
the best net price and most favorable  execution.  In such event, the allocation
will be made by the manager or the  subadvisor  in the manner  considered  to be
most  equitable  and  consistent  with  its  fiduciary  obligations  to all such
fiduciary accounts, including the fund.

Performance Advertising

Fund Performance

Individual fund  performance may be compared to various  indices,  including the
Standard  & Poor's 500  Index.  Fund  performance  also may be  compared  to the
rankings prepared by Lipper Analytical Services, Inc.

Average annual total return is calculated by determining each fund's  cumulative
total return for the stated period and then computing the annual compound return
that would produce the  cumulative  total return if the fund's  performance  had
been constant over that period. Cumulative total return includes all elements of
return,  including  reinvestment  of dividends and capital gains  distributions.
Annualization  of the fund's  return  assumes that the partial year  performance
will be constant throughout the period.  Actual return through the period may be
greater or less than the annualized data.

The fund also may elect to advertise  cumulative total return and average annual
total return,  computed as described above, over periods of time other than one,
five and 10 years and cumulative total return over various time periods.

Additional Performance Comparisons

   
Investors may judge the  performance of the fund by comparing its performance to
the  performance of other mutual funds or mutual fund portfolios with comparable
investment objectives and policies through various mutual fund or market indices
such  as the  those  prepared  by Dow  Jones  & Co.,  Inc.,  Standard  &  Poor's
Corporation,  Shearson  Lehman  Brothers,  Inc.  and to data  prepared by Lipper
Analytical  Services,  Inc.,  Morningstar,  Inc. and the  Consumer  Price Index.
Comparisons  may also be made to indices  or data  published  in Money,  Forbes,
Barron's,  The Wall Street Journal, The New York Times,  Business Week, Pensions
and Investments,  USA Today, Realty Stock Review, Changing Times,  Institutional
Investor and other similar publications or services.  In addition to performance
information,  general  information  about the fund that appears in a publication
such as those mentioned above or in the applicable  prospectus under the heading
"Performance  Advertising" may be included in  advertisements  and in reports to
shareholders.
    

Permissible Advertising Information

From  time  to  time,  the  fund  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 the fund; (5)
descriptions  of  investment  strategies  for  the  fund;  (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  fund;  (7)  comparisons  of  investment  products
(including  the  fund)  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  that  have  invested  in  the  fund.  The  fund  may  also  include
calculations,   such  as  hypothetical   compounding  examples,  which  describe
hypothetical  investment  results  in  such  communications.   Such  performance
examples will be based on an express set of  assumptions  and are not indicative
of the performance of the fund.

Multiple Class Performance Advertising

Pursuant to the Multiple  Class Plan, the fund 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 the fund,  the manager  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.
For periods after the first full quarter after inception,  actual performance of
the new class will be used.

Redemptions In Kind

The fund's policy with regard to large redemptions is described in detail in the
Prospectus under the heading "Special Requirements for Large Redemptions."

The fund has elected to be governed by Rule 18f-1 under the  Investment  Company
Act,  pursuant to which the fund is obligated to redeem shares solely in cash up
to the lesser of  $250,000  or 1% of the net asset  value of the fund during any
90-day period for any one  shareholder.  Should  redemptions by any  shareholder
exceed such limitation, the fund will have the option of redeeming the excess in
cash or in kind. If shares are redeemed in kind, the redeeming shareholder might
incur brokerage costs in converting the assets to cash. The securities delivered
will be selected at the sole discretion of the manager. Such securities will not
necessarily be representative of the entire portfolio and may be securities that
the manager regards as least desirable. The method of valuing securities used to
make  redemptions  in kind will be the same as the method of  valuing  portfolio
securities  described in each  prospectus  under the heading "HOW SHARE PRICE IS
DETERMINED,"  and such valuation will be made as of the same time the redemption
price is determined.

Holidays

The fund does not  determine  the net asset value of its shares on days when the
New York  Stock  Exchange  is  closed.  Currently,  the  Exchange  is  closed on
Saturdays and Sundays and on holidays, namely New Year's Day, Martin Luther King
Jr. Day,  Presidents' Day, Good Friday,  Memorial Day,  Independence  Day, Labor
Day, Thanksgiving and Christmas.





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

Investor Services:
1-800-345-2021 OR 816-531-5575

Automated Information Line:
1-800-345-8765

Telecommunications Device for the Deaf:
1-800-634-4113 OR 816-444-3485

FAX: 816-340-7962

www.americancentury.com

                        [american century logo[reg.sm])
                                    American
                                     Century
<PAGE>
PART C    OTHER INFORMATION

ITEM 24.  Financial Statements and Exhibits

          (i)  Financial Statements filed in Part A of Registration Statement:

               1.   None.

          (ii) Financial   Statements  filed  in  Part  B  of  the  Registration
               Statement.

               1.   None.

          (b)  Exhibits  (all  exhibits not filed herein are being  incorporated
               herein by reference).

               1.   (a)  Articles of Incorporation of Twentieth  Century Capital
                         Portfolios,   Inc.,   dated   June  11,   1993   (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 5 on Form N-1A on July 31, 1996, File No.
                         33-64872).

                    (b)  Articles  Supplementary  of Twentieth  Century  Capital
                         Portfolios,   Inc.,   dated   March  11,   1996  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 5 on Form N-1A on July 31, 1996, File No.
                         33-64872).

                    (c)  Articles of  Amendment  of  Twentieth  Century  Capital
                         Portfolios,   Inc.,   dated  December  2,  1996  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 7 on Form N-1A on March 3, 1997, File No.
                         33-64872).

                    (d)  Articles  Supplementary  of  American  Century  Capital
                         Portfolios,   Inc.,   dated  December  2,  1996  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 7 on Form N-1A on March 3, 1997, File No.
                         33-64872).

                    (e)  Articles  Supplementary  of  American  Century  Capital
                         Portfolios,   Inc.   dated   April  30,   1997   (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 8 on Form N-1A on May 21, 1997,  File No.
                         33-64872).

                    (f)  Certificate of Correction of Articles  Supplementary of
                         American Century Capital Portfolios, Inc. dated May 15,
                         1997   (filed   electronically   as   an   exhibit   to
                         Post-Effective  Amendment No. 8 on Form N-1A on May 21,
                         1997, File No. 33-64872).

                    (g)  Articles  Supplementary  of  American  Century  Capital
                         Portfolios,   Inc.   dated  December  19,  1997  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 9 on Form N-1A on February 17, 1998).

                    (h)  Articles  Supplementary  of  American  Century  Capital
                         Portfolios,    Inc.   dated   June   1,   1998   (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 11 on Form N-1A on June 26, 1998).

                    (i)  Articles  Supplementary  of  American  Century  Capital
                         Portfolios, Inc. dated January 29, 1999 (filed herewith
                         as EX-99.B1i).

               2.   (a)  By-Laws of Twentieth Century Capital  Portfolios,  Inc.
                         (filed  electronically  as an exhibit to Post-Effective
                         Amendment No. 5 on Form N-1A on July 31, 1996, File No.
                         33-64872).

                    (b)  Amendment  to  By-Laws  of  American   Century  Capital
                         Portfolios, Inc. (filed electronically as an exhibit to
                         Post-Effective Amendment No. 9 on Form N-1A on February
                         17, 1998).

               3.   Voting Trust Agreements - None.

               4.   Instruments Defining Rights of Shareholders - None.

               5.   (a)  Management  Agreement  dated  as  of  August  1,  1997,
                         between American Century Capital  Portfolios,  Inc. and
                         American  Century  Investment  Management,  Inc. (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 9 on Form N-1A on February 17, 1998).

                    (b)  Subadvisory  Agreement by and between  American Century
                         Capital  Portfolios,  Inc., American Century Investment
                         Management,  Inc.  and  RREEF  America,  L.L.C.,  dated
                         January 27, 1998 (filed electronically as an exhibit to
                         Post-Effective Amendment No. 9 on Form N-1A on February
                         17, 1998).

                    (c)  Addendum to Management  Agreement  dated July 30, 1998,
                         between American Century Capital  Portfolios,  Inc. and
                         American  Century  Investment  Management,  Inc. (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 11 on Form N-1A of the Registrant on June
                         26, 1998).

                    (d)  Subadvisory    Agreement    between   Barclays   Global
                         Investors,   N.A.  and  American   Century   Investment
                         Management, Inc. dated January 29, 1999 (to be filed by
                         amendment).

                    (e)  Addendum to Management Agreement dated January 29, 1999
                         (filed herewith as EX-99.B5e).

               6.   (a)  Distribution Agreement between American Century Capital
                         Portfolios,  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).

                    (b)  Amendment No. 1 to the Distribution  Agreement  between
                         American  Century  Capital  Portfolios,  Inc. and Funds
                         Distributor,   Inc.   dated   June   1,   1998   (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 11 on Form N-1A of the Registrant on June
                         26, 1998).

                    (c)  Amendment No. 2 to the Distribution  Agreement  between
                         American  Century  Capital  Portfolios,  Inc. and Funds
                         Distributor,   Inc.  dated  November  13,  1998  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment  No.  12 to  the  Registration  Statement  of
                         American  Century World Mutual Funds,  Inc. on November
                         13, 1998, File No. 33-39242).

                    (d)  Amendment No. 3 to the Distribution  Agreement  between
                         American  Century  Capital  Portfolios,  Inc. and Funds
                         Distributor,   Inc.   dated  January  29,  1999  (filed
                         herewith as EX-99.B6d).

               7.   Bonus and Profit Sharing Plan, Etc. - None.

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

                    (b)  Global Custody  Agreement  between The Chase  Manhattan
                         Bank and the Twentieth Century and Benham Funds,  dated
                         August  9,  1996  (filed  as a part  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 February 7, 1997).

               9.   (a)  Transfer Agency Agreement,  dated as of August 1, 1993,
                         by and between  Twentieth  Century Capital  Portfolios,
                         Inc.  and  Twentieth  Century  Services,   Inc.  (filed
                         electronically   as  an   exhibit   to   Post-Effective
                         Amendment No. 5 on Form N-1A of the  Registrant on July
                         31, 1996, File No. 33-64872).

                    (b)  License Agreement  between American Century  Investment
                         Management,  Inc. and Standard & Poor's,  a division of
                         The McGraw-Hill Companies, Inc., dated January 29, 1999
                         (to be filed by amendment).

               10.  Opinion   and   consent  of  Counsel   (filed   herewith  as
                    EX-99.B10).

               12.  Annual Reports - None.

               13.  Agreements for Initial Capital, Etc. - None.

               14.  Model  Retirement  Plans  (filed as  Exhibits  14(a)-(d)  to
                    Pre-Effective  Amendment No. 2 to the Registration Statement
                    on Form N-1A of Twentieth  Century  World  Investors,  Inc.,
                    File No. 33-39242, filed on May 6, 1991).

               15.  (a)  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 an Exhibit to Post-Effective
                         Amendment  No.  9  on  Form  N-1A  of  the  Registrant,
                         File No. 33-64872).

                    (b)  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 an exhibit to
                         Post-Effective   Amendment  No.  77  on  Form  N-1A  of
                         American Century Mutual Funds on July 17, 1997).

                    (c)  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 an exhibit
                         to  Post-Effective  Amendment  No.  78 on Form  N-1A of
                         American Century Mutual Funds on February 26, 1998).

                    (d)  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 an
                         Exhibit to Post-Effective  Amendment No. 9 on Form N-1A
                         of the Registrant, File No. 33-64872).

                    (e)  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 an exhibit to
                         Post-Effective  Amendment  No.  11 on Form  N-1A of the
                         Registrant on June 26, 1998).

                    (f)  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 an exhibit
                         to Post-Effective  Amendment No. 12 to the Registration
                         Statement of American Century World Mutual Funds,  Inc.
                         on November 13, 1998, File No. 33-39242).

               16.  Schedule  of   Computation   for   Performance   Advertising
                    Quotations - None.

               17.  Power of  Attorney  (filed  electronically  as an exhibit to
                    Post-Effective   Amendment  No.  12  on  Form  N-1A  of  the
                    Registrant, on June 26, 1998).

               18.  (a)  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  an  exhibit  to
                         Post-Effective   Amendment No. 9 on Form  N-1A  of  the
                         Registrant, File No. 33-64872).

                    (b)  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 an exhibit  to  Post-Effective  Amendment  No. 77 on
                         Form N-1A of American  Century  Mutual  Funds,  Inc. on
                         July 17, 1997).

                    (c)  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  an   exhibit   to   Post-Effective
                         Amendment  No.  78 on  Form  N-1A of  American  Century
                         Mutual Funds, Inc. on February 26, 1998).

                    (d)  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 an exhibit  to  Post-Effective  Amendment  No. 11 on
                         Form N-1A of the Registrant on June 26, 1998).

                    (e)  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  an   exhibit   to   Post-Effective
                         Amendment  No.  12 to  the  Registration  Statement  of
                         American  Century World Mutual Funds,  Inc. on November
                         13, 1998, File No. 33-39242).

                    (f)  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  herewith as
                         EX-99.B18d).

               27.  Financial  Data Schedule for American  Century  Equity Index
                    Fund (EX-27.1).

ITEM 25.  Persons Controlled by or Under Common Control with Registrant - None.

ITEM 26.  Number of Holders of Securities - The Equity Index Fund has no holders
          of Securities.

ITEM 27.  Indemnification.

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

          Article XIII of the Registrant's Articles of Incorporation,  Exibit 1,
          requires  the  indemnification  of  the  Registrant's   directors  and
          officers  to the extent  permitted  by Section  2-418 of the  Maryland
          General  Corporation  Law, the Investment  Company Act of 1940 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 28.  Business and Other Connections of Investment Advisor.

          American Century Investment Management,  Inc., the investment advisor,
          is engaged in the  business of  managing  investments  for  registered
          investment   companies,   deferred   compensation   plans   and  other
          institutional investors.

ITEM 29.  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.          
          BJB Investment Funds                               
          The Brinson Funds                                  
          Dresdner RCM Capital Funds, Inc.                   
          Dresdner RCM Equity Funds, Inc.                    
          Founders Funds, Inc.                               
          Harris Insight Funds Trust                         
          HT Insight Funds, Inc. d/b/a Harris Insight Funds  
          J.P. Morgan Institutional Funds                    
          J.P. Morgan Funds                                  
          JPM Series Trust                                   
          JPM Series Trust II                                
          LaSalle Partners Funds, Inc.                       
          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>
Name and Principal Business          Positions and Offices with          Positions and Offices with
Address*                             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

Michael S. Petrucelli                Senior Vice President               none

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

Paula R. David                       Senior Vice President               none

Allen B. Closser                     Senior Vice President               none

Bernard A. Whalen                    Senior Vice President               none

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

          (c)  Not applicable.

ITEM 30.  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  Registrant,  American  Century  Services
          Corporation  and American  Century  Investment  Management,  Inc., all
          located at 4500 Main Street, Kansas City, Missouri 64111.

ITEM 31.  Management Services - None.

ITEM 32.  Undertakings.

          (a)  Not applicable.

          (b)  Not applicable.

          (c)  The Registrant hereby undertakes to furnish each person to whom a
               prospectus is delivered  with a copy of the  Registrant's  latest
               annual report to shareholders, upon request and without charge.

          (d)  The Registrant hereby undertakes that it will, if requested to do
               so by the holders of at least 10% of the Registrant's outstanding
               votes,  call a meeting of shareholders  for the purpose of voting
               upon the  question of the removal of a director  and to assist in
               communication  with other  shareholders  as  required  by Section
               16(c).
<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. 13 to its Registration Statement to be signed
on its behalf by the  undersigned,  thereunto  duly  authorized,  in the City of
Kansas City, State of Missouri on the 25th day of November, 1998.

                                    American Century Capital Portfolios, Inc.
                                                 (Registrant)

                                    By: /s/Charles A. Etherington
                                        Charles A. Etherington, Vice President

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Post-Effective  Amendment No. 13 has been signed below by the following  persons
in the capacities and on the dates indicated.

<TABLE>
<CAPTION>
Signature                                 Title                           Date
<S>                                <C>                               <C>
*George A. Rio                     President, Principal Executive    November 25, 1998
- -------------------------          and Principal Financial Officer
George A. Rio.

*Maryanne Roepke                   Vice President and Treasurer      November 25, 1998
- -------------------------
Maryanne Roepke

*James E. Stowers, Jr.             Director                          November 25, 1998
- -------------------------
James E. Stowers, Jr.

*James E. Stowers III              Director                          November 25, 1998
- -------------------------
James E. Stowers, III

*Thomas A. Brown                   Director                          November 25, 1998
- -------------------------
Thomas A. Brown

*Robert W. Doering, M.D.           Director                          November 25, 1998
- -------------------------
Robert W. Doering, M.D.

*Andrea C. Hall, Ph.D.             Director                          November 25, 1998
- -------------------------
Andrea C. Hall, Ph.D.

*D. D. (Del) Hock                  Director                          November 25, 1998
- -------------------------
D. D. (Del) Hock

*Donald H. Pratt                   Director                          November 25, 1998
- -------------------------
Donald H. Pratt

*Lloyd T. Silver, Jr.              Director                          November 25, 1998
- -------------------------
Lloyd T. Silver, Jr.

*M. Jeannine Strandjord            Director                          November 25, 1998
- -------------------------
M. Jeannine Strandjord


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

                                 EXHIBIT INDEX

EXHIBIT        DESCRIPTION OF DOCUMENT
NUMBER

EX-99.B1a      Articles  of   Incorporation   of   Twentieth   Century   Capital
               Portfolios,   Inc.  (filed   electronically   as  Exhibit  1a  to
               Post-Effective  Amendment  No. 5 on Form N-1A,  filed on July 31,
               1996, and incorporated herein by reference).

EX-99.B1b      Articles  Supplementary of Twentieth Century Capital  Portfolios,
               Inc.  (filed  electronically  as  Exhibit  1b  to  Post-Effective
               Amendment  No.  5 on Form  N-1A,  filed  on July  31,  1996,  and
               incorporated herein by reference).

EX-99.B1c      Articles of Amendment of Twentieth  Century  Capital  Portfolios,
               Inc., dated December 2, 1996 (filed electronically as Exhibit B1c
               to Post-Effective Amendment No. 7 on Form N-1A, filed on March 3,
               1997, and incorporated herein by reference).

EX-99.B1d      Articles  Supplementary of American  Century Capital  Portfolios,
               Inc., dated December 2, 1996 (filed electronically as Exhibit B1d
               to Post-Effective Amendment No. 7 on Form N-1A, filed on March 3,
               1997, and incorporated herein by reference).

EX-99.B1e      Articles  Supplementary of American  Century Captial  Portfolios,
               Inc. dated April 30, 1997 (filed electronically as Exhibit B1e to
               Post-Effective  Amendment  No. 8 on Form  N-1A,  filed on May 21,
               1997, and incorporated herein by reference).

EX-99.B1f      Certificate of Correction to Articles  Supplementary  of American
               Century  Capital  Portfolios,  Inc.  dated  May 15,  1997  (filed
               electronically as Exhibit B1f to  Post-Effective  Amendment No. 8
               on Form N-1A, filed on May 21, 1997, and  incorporated  herein by
               reference).

EX-99.B1g      Articles  Supplementary of American  Century Capital  Portfolios,
               Inc. dated December 19, 1997 (filed electronically as Exhibit B1g
               to  Post-Effective  Amendment No. 9 on Form N-1A,  filed February
               17, 1998, and incorporated herein by reference).

EX-99.B1h      Articles  Supplementary of American  Century Capital  Portfolios,
               Inc. dated June 1, 1998 (filed  electronically  as Exhibit B1h to
               Post-Effective  Amendment  No. 11 on Form  N-1A,  filed  June 26,
               1998, and incorporated herein by reference).

EX-99.B1i      Articles  Supplementary of American  Century Capital  Portfolios,
               Inc. dated January 29, 1999 is included herein.

EX-99.B2a      By-Laws of Twentieth  Century  Capital  Portfolios,  Inc.  (filed
               electronically as Exhibit 2 to Post-Effective  Amendment No. 5 on
               Form N-1A,  filed on July 31, 1996,  and  incorporated  herein by
               reference).

EX-99.B2b      Amendment to By-Laws of American Century Capital Portfolios, Inc.
               (filed electronically as Exhibit B2b to Post-Effective  Amendment
               No. 9 on Form N-1A,  filed  February 17, 1998,  and  incorporated
               herein by reference).

EX-99.B5a      Management  Agreement,  dated  as  of  August  1,  1997,  between
               American  Century Capital  Portfolios,  Inc. and American Century
               Investment Management,  Inc. (filed electronically as Exhibit B5a
               to  Post-Effective  Amendment No. 9 on Form N-1A,  filed February
               17, 1998, and incorporated herein by reference).

EX-99.B5b      Investment  Subadvisory  Agreement by and among American  Century
               Capital Portfolios, Inc., American Century Investment Management,
               Inc.  and RREEF  America  L.L.C.,  dated  January 27, 1998 (filed
               electronically as Exhibit B5b to  Post-Effective  Amendment No. 9
               on Form N-1A, filed February 17, 1998, and incorporated herein by
               reference).

EX-99.B5c      Addendum to  Management  Agreement  dated July 30, 1998,  between
               American  Century Capital  Portfolios,  Inc. and American Century
               Investment Management,  Inc. (filed electronically as Exhibit B5c
               to  Post-Effective  Amendment No. 11 on Form N-1A, filed June 26,
               1998, and incorporated herein by reference).

EX-99.B5d      Subadvisory Agreement between Barclays Global Investors, N.A. and
               American Century  Investment  Management,  Inc. dated January 29,
               1999 (to be filed by amendment).

EX-99.B5e      Addendum to Management  Agreement dated January 29, 1999, between
               American  Century Capital  Portfolios,  Inc. and American Century
               Investment Management, Inc. is included herein.

EX-99.B6a      Distribution   Agreement   between   American   Century   Capital
               Portfolios,  Inc. and Funds  Distributor,  Inc. dated January 15,
               1998  (filed   electronically  as  Exhibit  6  to  Post-Effective
               Amendment  No.  28  on  Form  N-1A  of  American  Century  Target
               Maturities  Trust,  filed on January 30, 1998,  and  incorporated
               herein by reference).

EX-99.B6b      Amendment  No.  1  to  Distribution  Agreement  between  American
               Century  Capital  Portfolios,  Inc. and Funds  Distributor,  Inc.
               dated  June 1,  1998  (filed  electronically  as  Exhibit  B6b to
               Post-Effective  Amendment  No. 11 on Form  N-1A,  filed  June 26,
               1998, and incorporated herein by reference).

EX-99.B6c      Amendment  No.  2  to  Distribution  Agreement  between  American
               Century  Capital  Portfolios,  Inc. and Funds  Distributor,  Inc.
               dated  November  13,  1998  (filed  as a part  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 November 13, 1998, and incorporated herein by reference).

EX-99.B6d      Amendment  No.  3  to  Distribution  Agreement  between  American
               Century  Capital  Portfolios,  Inc. and Funds  Distributor,  Inc.
               dated January 29, 1999, is included herein.

EX-99.B8a      Master Agreement by and between Twentieth Century Services,  Inc.
               and  Commerce   Bank,   N.A.   dated   January  22,  1997  (filed
               electronically as Exhibit 8(b) to Post-Effective Amendment No. 76
               to the  Registration  Statement on Form N-1A of American  Century
               Mutual Funds, Inc., File No. 2-14213, filed February 28, 1997 and
               incorporated herein by reference).

EX-99.B8b      Global Custody Agreement between The Chase Manhattan Bank and the
               Twentieth  Century and Benham Funds,  dated August 9, 1996 (filed
               electronically as Exhibit B8 to  Post-Effective  Amendment No. 31
               to the  Registration  Statement on Form N-1A of American  Century
               Government  Income Trust,  File No.  2-99222,  filed  February 7,
               1997, and incorporated herein by reference).

EX-99.B9a      Transfer  Agency  Agreement  dated as of August 1,  1993,  by and
               between Twentieth Century Capital Portfolios,  Inc. and Twentieth
               Century  Services,  Inc.  (filed  electronically  as Exhibit 9 to
               Post-Effective Amendment No. 5 on Form N-1A, filed July 31, 1996,
               and incorporated herein by reference).

EX-99.B9b      License Agreement between American Century Investment Management,
               Inc.  and  Standard  &  Poor's,  a  division  of The  McGraw-Hill
               Companies,   Inc.,  dated  January  29,  1999  (to  be  filed  by
               amendment).

EX-99.B10      Opinion and Consent of David H. Reinmiller, Esq.

EX-99.B14      Model Retirement Plans (filed as Exhibits 14(a), 14(b), 14(c) and
               14(d)  to  Pre-Effective  Amendment  No.  2 to  the  Registration
               Statement and incorporated herein by reference).

EX-99.B15a     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  a  part  of
               Post-Effective  Amendment  No. 9 on Form N-1A of the  Registrant,
               Commission  File No.  33-64872,  filed  February  17,  1998,  and
               incorporated herein by reference).

EX-99.B15b     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 a
               part  of  Post-Effective  Amendment  No.  77 to the  Registration
               Statement on Form N-1A of American  Century  Mutual Funds,  Inc.,
               Commission  File  No.  2-14213,  filed  on  July  17,  1997,  and
               incorporated herein by reference).

EX-99.B15c     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
               a part of  Post-Effective  Amendment  No. 78 to the  Registration
               Statement on Form N-1A of American  Century  Mutual Funds,  Inc.,
               Commission  File No.  2-14213,  filed on February 26,  1998,  and
               incorporated herein by reference).

EX-99.B15d     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 a part of Post-Effective Amendment No. 9
               on Form N-1A of the  Registrant,  Commission  File No.  33-64872,
               filed February 17, 1998, and incorporated herein by reference).

EX-99.B15e     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,
               filed June 26, 1998, and incorporated herein by reference).

EX-99.B15f     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
               an exhibit to Post-Effective Amendment No. 12 to the Registration
               Statement  of American  Century  World  Mutual  Funds,  Inc.,  on
               November 13, 1998, File No. 33-39242,  and incorporated herein by
               reference).

EX-99.B17      Power  of  Attorney  dated  July  25,  1998  (filed  as a part of
               Post-Effective  Amendment No. 12 to the Registration Statement on
               Form  N-1A  of the  Registrant,  filed  September  14,  1998  and
               incorporated herein by reference).

EX-99.B18a     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
               a part of  Post-Effective  Amendment  No.  9 on Form  N-1A of the
               Registrant,  Commission  File No.  33-64872,  filed  February 17,
               1998, and incorporated herein by reference).

EX-99.B18b     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 a part of  Post-Effective  Amendment No. 77 to
               the  Registration  Statement  on Form  N-1A of  American  Century
               Mutual Funds,  Inc.,  Commission File No. 2-14213,  filed on July
               17, 1997, and incorporated herein by reference).

EX-99.B18c     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 a part of  Post-Effective  Amendment No. 78 to
               the  Registration  Statement  on Form  N-1A of  American  Century
               Mutual  Funds,  Inc.,  Commission  File  No.  2-14213,  filed  on
               February 26, 1998, and incorporated herein by reference).

EX-99.B18d     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,  filed June 26, 1998,  and  incorporated  herein by
               reference).

EX-99.B18e     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 an exhibit to  Post-Effective  Amendment No. 12
               to the  Registration  Statement of American  Century World Mutual
               Funds,  Inc.  on  November  13,  1998,  File  No.  33-39242,  and
               incorporated herein by reference).

EX-99.B18f     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,  is
               included herein.

EX-27.1        Financial Data Schedule for American Century Equity Index Fund.

                    AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.


                             ARTICLES SUPPLEMENTARY


         AMERICAN CENTURY CAPITAL PORTFOLIOS, 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
by Article  FIFTH and 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  American  Century  Equity Index Fund  (hereinafter
referred  to as a  "Series")  for the  Corporation's  stock  and  has  allocated
Seventy-five  Hundred Million (75,000,000) shares of the One Billion One Hundred
Million  (1,100,000,000)  shares of authorized capital stock of the Corporation,
par  value One Cent  ($0.01)  per  share,  for an  aggregate  par value of Seven
Hundred Fifty Thousand Dollars  ($750,000) to the new Series. As a result of the
action  taken by the Board of  Directors  referenced  in Article  FIRST of these
Articles Supplementary,  the five (5) 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

American Century Value Fund              625,000,000            $6,250,000

American Century Equity Income Fund      200,000,000            $2,000,000

American Century Real Estate Fund        100,000,000            $1,000,000

American Century Small Cap Value         100,000,000            $1,000,000
     Fund

American Century Equity Index Fund       75,000,000              $ 750,000

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 Article FIFTH and Article SEVENTH of the Articles of Incorporation,
the Board of  Directors  of the  Corporation  (a) has duly  established  two (2)
classes of shares (each hereinafter referred to as a "Class") for the new Series
of the  capital  stock  of the  Corporation  and (b) has  allocated  the  shares
designated to the new 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 five (5) Series of stock of the  Corporation and the number of shares and
aggregate par value of each is as follows:

<TABLE>
                                                         Number of Shares        Aggregate
          Series Name                   Class Name           as Allocated        Par Value
          -----------                   ----------           ------------        ---------
                                                         
<S>                                     <C>                   <C>               <C>       
American Century Value Fund             Investor              500,000,000       $5,000,000
                                        Institutional          50,000,000          500,000
                                        Service                         0                0
                                        Advisor                75,000,000          750,000

American Century Equity Income Fund     Investor              125,000,000       $1,250,000
                                        Institutional          25,000,000          250,000
                                        Service                         0                0
                                        Advisor                50,000,000          500,000

American Century Real Estate Fund       Investor               50,000,000        $ 500,000
                                        Institutional          25,000,000          250,000
                                        Advisor                25,000,000          250,000

American Century Small Cap Value Fund   Investor               50,000,000        $ 500,000
                                        Institutional          25,000,000          250,000
                                        Advisor                25,000,000          250,000

American Century Equity Index Fund      Investor               50,000,000        $ 500,000
                                        Institutional          25,000,000          250,000
</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  establishing a 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 as set forth in Article SECOND.


         IN WITNESS  WHEREOF,  AMERICAN  CENTURY  CAPITAL  PORTFOLIOS,  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 Assistant  Secretary on this 29th day of January,
1999.

                                            AMERICAN CENTURY CAPITAL
ATTEST:                                     PORTFOLIOS, INC.


/s/      David H. Reinmiller                By:   /s/ Patrick A. Looby
Name:  David H. Reinmiller                  Name:   Patrick A. Looby
Title:   Assistant Secretary                Title:   Vice President


         THE UNDERSIGNED Vice President of AMERICAN CENTURY CAPITAL  PORTFOLIOS,
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: January 29, 1999.                    /s/ Patrick A. Looby
                                            Patrick A. Looby, Vice President

                        ADDENDUM TO MANAGEMENT AGREEMENT


         This Addendum, dated as of January 29, 1999, supplements the Management
Agreement (the "Agreement")  dated as of August 1, 1997, by and between American
Century  Capital  Portfolios,  Inc.,  ("ACCP") and American  Century  Investment
Management, Inc. ("ACIM").

         IN  CONSIDERATION   of  the  mutual  promises  and  conditions   herein
contained,  the parties agree as follows (all capitalized  terms used herein and
not otherwise defined having the meaning given them in the Agreement):

         1. ACIM shall manage the following  series (the "New Series") of shares
to be issued by ACCP, and for such  management  shall receive the Applicable Fee
set forth below:

                  Name of Series                        Applicable Fee
                  --------------                        --------------

         American Century Equity Index Fund       Investor Class    - 0.49%
                                                  Institutional Class- 0.29%

         2. ACIM shall  manage the New Series in  accordance  with the terms and
conditions   specified   in  the   Agreement   for   its   existing   management
responsibilities.

         IN WITNESS  WHEREOF,  the  parties  have  caused  this  Addendum to the
Agreement to be executed by their respective duly authorized  officers as of the
day and year first above written.


Attest:                                              AMERICAN CENTURY
                                                     CAPITAL PORTFOLIOS, INC.


/s/ David H. Reinmiller                              /s/ Patrick A. Looby
David H. Reinmiller                                  Patrick A. Looby
Assistant Secretary                                  Vice President


Attest:                                              AMERICAN CENTURY INVESTMENT
                                                     MANAGEMENT, INC.

/s/ David H. Reinmiller                              /s/ William M. Lyons
David H. Reinmiller                                  William M. Lyons
Assistant Secretary                                  Executive Vice President

                    AMENDMENT NO. 3 TO DISTRIBUTION AGREEMENT


         THIS AMENDMENT NO. 3 TO  DISTRIBUTION  AGREEMENT is made as of the 29th
of January,  1999,  by and between  each of the open end  management  investment
companies listed on Schedule A, attached  hereto,  as of the dates noted on such
Schedule A, together  with all other open end  management  investment  companies
subsequently  established  and made subject to this Agreement in accordance with
Section  16  (the  "Issuers")  and  Funds  Distributor,   Inc.  ("Distributor").
Capitalized  terms not otherwise  defined herein shall have the meaning ascribed
to them in the Distribution Agreement.

                                    RECITALS

         WHEREAS,   the  Issuers  and  Distributor  are  parties  to  a  certain
Distribution Agreement dated January 15, 1998, amended June 1, 1998 and December
1, 1998 (the "Distribution Agreement"); and

         WHEREAS, American Century Capital Portfolios,  Inc. has added a series,
American Century Equity Index Fund; and

         WHEREAS, the parties desire to amend the Distribution  Agreement to add
the new series.

         NOW,  THEREFORE,  in  consideration  of the mutual  promises  set forth
herein, the parties hereto agree as follows:

         1. The new  series  is  hereby  added  as a party  to the  Distribution
Agreement.

         2.  Schedules  A, B, C, D and E to  Distribution  Agreement  are hereby
amended by deleting  the text thereof in their  entirety  and  inserting in lieu
therefor the Schedules A, B, C, D and E attached hereto.

         3. After the date hereof, all references to the Distribution  Agreement
shall be deemed to mean the Distribution  Agreement, as amended by Amendment No.
1, Amendment 2 and this Amendment No. 3.

         4. In the event of a conflict  between the terms of this  Amendment No.
3, Amendment No. 2, Amendment No. 1 and the  Distribution  Agreement,  it is the
intention of the parties that the terms of this  Amendment  No. 3 shall  control
and the Distribution Agreement shall be interpreted on that basis. To the extent
the provisions of the Distribution Agreement,  Amendment No. 1 and Amendment No.
2 have not been amended by this  Amendment No. 3, the parties hereby confirm and
ratify the Distribution Agreement.

         5. This  Amendment  No. 3 may be executed in two or more  counterparts,
each of which shall be an original and all of which  together  shall  constitute
one instrument.

         IN WITNESS WHEREOF,  the undersigned have executed this Amendment No. 3
as of the date first above written.

                       FUNDS DISTRIBUTOR, INC.


                       By: /s/ Marie E. Connolly
                       Name:   Marie E. Connolly
                       Title:  President and CEO

                       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.


                       By:  /s/ Patrick A. Looby
                              Patrick A. Looby
                              Vice President of each of the Issuers
<PAGE>
<TABLE>
<CAPTION>
                                   SCHEDULE A

           Companies and Funds Covered by this Distribution Agreement
Fund                                                                   Date of Agreement
- ----                                                                   -----------------
<S>                                                                   <C>

AMERICAN CENTURY CALIFORNIA TAX-FREE AND MUNICIPAL FUNDS
0        Benham California Municipal Money Market Fund                 January 15, 1998
0        Benham California High-Yield Municipal Fund                   January 15, 1998
0        Benham California Tax-Free Money Market Fund                  January 15, 1998
0        Benham California Limited Term Tax-Free Fund                  January 15, 1998
0        Benham California Intermediate-Term Tax-Free Fund             January 15, 1998
0        Benham California Long-Term Tax-Free Fund                     January 15, 1998
0        Benham California Insured Tax-Free Fund                       January 15, 1998

AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
0        American Century Equity Income Fund                           January 15, 1998
0        American Century Real Estate Fund                             January 15, 1998
0        American Century Value Fund                                   January 15, 1998
0        American Century Small Cap Value Fund                         July 30, 1998
0        American Century Equity Index Fund                            January 29, 1998

AMERICAN CENTURY GOVERNMENT INCOME TRUST
0        Benham Short-Term Treasury Fund                               January 15, 1998
0        Benham Intermediate-Term Treasury Fund                        January 15, 1998
0        Benham Long-Term Treasury Fund                                January 15, 1998
0        Benham Government Agency Money Market Fund                    January 15, 1998
0        Benham Short-Term Government Fund                             January 15, 1998
0        Benham GNMA Fund                                              January 15, 1998
0        Benham Inflation-Adjusted Treasury Fund                       January 15, 1998
0        Benham Capital Preservation Fund                              January 15, 1998

AMERICAN CENTURY INTERNATIONAL BOND FUNDS
0        Benham International Bond Fund                                January 15, 1998

AMERICAN CENTURY INVESTMENT TRUST
0        Benham Prime Money Market Fund                                January 15, 1998

AMERICAN CENTURY MUNICIPAL TRUST
0        Benham Arizona Intermediate-Term Municipal Fund               January 15, 1998
0        Benham Florida Municipal Money Market Fund                    January 15, 1998
0        Benham Florida Intermediate-Term Municipal Fund               January 15, 1998
0        Benham Tax-Free Money Market Fund                             January 15, 1998
0        Benham Intermediate-Term Tax-Free Fund                        January 15, 1998
0        Benham Long-Term Tax-Free Fund                                January 15, 1998
0        Benham Limited-Term Tax-Free Fund                             January 15, 1998
0        Benham High-Yield Municipal Fund                              March 31, 1998

AMERICAN CENTURY MUTUAL FUNDS, INC.
0        American Century Balanced Fund                                January 15, 1998
0        Twentieth Century Growth Fund                                 January 15, 1998
0        Twentieth Century Heritage Fund                               January 15, 1998
0        Benham Intermediate-Term Bond Fund                            January 15, 1998
0        Benham Limited-Term Bond Fund                                 January 15, 1998
0        Benham Bond Fund                                              January 15, 1998
0        Twentieth Century Select Fund                                 January 15, 1998
0        Twentieth Century Ultra Fund                                  January 15, 1998
0        Twentieth Century Vista Fund                                  January 15, 1998
0        Twentieth Century Giftrust                                    January 15, 1998
0        Twentieth Century New Opportunities Fund                      January 15, 1998
0        Benham High Yield Fund                                        January 15, 1998

AMERICAN CENTURY PREMIUM RESERVES, INC.
0        Benham Premium Government Reserve Fund                        January 15, 1998
0        Benham Premium Capital Reserve Fund                           January 15, 1998
0        Benham Premium Managed Bond Fund                              January 15, 1998

AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
0        American Century Equity Growth Fund                           January 15, 1998
0        American Century Income & Growth Fund                         January 15, 1998
0        American Century Global Gold Fund                             January 15, 1998
0        American Century Global Natural Resources Fund                January 15, 1998
0        American Century Utilities Fund                               January 15, 1998
0        American Century Small Cap Quantitative Fund                  July 30, 1998

AMERICAN CENTURY STRATEGIC ASSET ALLOCATIONS, INC.
0        American Century Strategic Allocation: Aggressive             January 15, 1998
0        American Century Strategic Allocation: Conservative           January 15, 1998
0        American Century Strategic Allocation: Moderate               January 15, 1998

AMERICAN CENTURY TARGET MATURITIES TRUST
0        Benham Target Maturities Trust:  2000                         January 15, 1998
0        Benham Target Maturities Trust:  2005                         January 15, 1998
0        Benham Target Maturities Trust:  2010                         January 15, 1998
0        Benham Target Maturities Trust:  2015                         January 15, 1998
0        Benham Target Maturities Trust:  2020                         January 15, 1998
0        Benham Target Maturities Trust:  2025                         January 15, 1998

AMERICAN CENTURY VARIABLE PORTFOLIOS, INC.
0        American Century VP Advantage                                 January 15, 1998
0        American Century VP Balanced                                  January 15, 1998
0        American Century VP Capital Appreciation                      January 15, 1998
0        American Century VP International                             January 15, 1998
0        American Century VP Income & Growth                           January 15, 1998
0        American Century VP Value                                     January 15, 1998

AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
0        Twentieth Century Emerging Markets Fund                       January 15, 1998
0        Twentieth Century International Growth Fund                   January 15, 1998
0        Twentieth Century International Discovery Fund                January 15, 1998
0        Twentieth Century Global Growth Fund                          December 1, 1998
<PAGE>
                                   SCHEDULE B

                              Investor Class Funds
Fund                                                                   Date of Agreement
- ----                                                                   -----------------

AMERICAN CENTURY CALIFORNIA TAX-FREE AND MUNICIPAL FUNDS
0        Benham California Municipal Money Market Fund                 January 15, 1998
0        Benham California High-Yield Municipal Fund                   January 15, 1998
0        Benham California Tax-Free Money Market Fund                  January 15, 1998
0        Benham California Limited Term Tax-Free Fund                  January 15, 1998
0        Benham California Intermediate-Term Tax-Free Fund             January 15, 1998
0        Benham California Long-Term Tax-Free Fund                     January 15, 1998
0        Benham California Insured Tax-Free Fund                       January 15, 1998

AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
0        American Century Equity Income Fund1                          January 15, 1998
0        American Century Real Estate Fund1                            January 15, 1998
0        American Century Value Fund1                                  January 15, 1998
0        American Century Small Cap Value Fund                         July 30, 1998
0        American Century Equity Index Fund1                           January 29, 1999

AMERICAN CENTURY GOVERNMENT INCOME TRUST
0        Benham Short-Term Treasury Fund1                              January 15, 1998
0        Benham Intermediate-Term Treasury Fund1                       January 15, 1998
0        Benham Long-Term Treasury Fund1                               January 15, 1998
0        Benham Government Agency Money Market Fund1                   January 15, 1998
0        Benham Short-Term Government Fund1                            January 15, 1998
0        Benham GNMA Fund1                                             January 15, 1998
0        Benham Inflation-Adjusted Treasury Fund1                      January 15, 1998
0        Benham Capital Preservation Fund                              January 15, 1998

AMERICAN CENTURY INTERNATIONAL BOND FUNDS
0        Benham International Bond Fund1                               January 15, 1998

AMERICAN CENTURY INVESTMENT TRUST
0        Benham Prime Money Market Fund1                               June 1, 1998

AMERICAN CENTURY MUNICIPAL TRUST
0        Benham Arizona Intermediate-Term Municipal Fund               January 15, 1998
0        Benham Florida Municipal Money Market Fund                    January 15, 1998
0        Benham Florida Intermediate-Term Municipal Fund               January 15, 1998
0        Benham Tax-Free Money Market Fund                             January 15, 1998
0        Benham Intermediate-Term Tax-Free Fund                        January 15, 1998
0        Benham Long-Term Tax-Free Fund                                January 15, 1998
0        Benham Limited-Term Tax-Free Fund                             January 15, 1998
0        Benham High-Yield Municipal Fund                              March 31, 1998

0        AMERICAN CENTURY MUTUAL FUNDS, INC.

0        American Century Balanced Fund1                               January 15, 1998
0        Twentieth Century Growth Fund1                                January 15, 1998
0        Twentieth Century Heritage Fund1                              January 15, 1998
0        Benham Intermediate-Term Bond Fund1                           January 15, 1998
0        Benham Limited-Term Bond Fund1                                January 15, 1998
0        Benham Bond Fund1                                             January 15, 1998
0        Twentieth Century Select Fund1                                January 15, 1998
0        Twentieth Century Ultra Fund1                                 January 15, 1998
0        Twentieth Century Vista Fund1                                 January 15, 1998
0        Twentieth Century Giftrust                                    January 15, 1998
0        Twentieth Century New Opportunities Fund                      January 15, 1998
0        Benham High Yield Fund                                        January 15, 1998

AMERICAN CENTURY PREMIUM RESERVES, INC.
0        Benham Premium Government Reserve Fund                        January 15, 1998
0        Benham Premium Capital Reserve Fund                           January 15, 1998
0        Benham Premium Bond Fund                                      January 15, 1998

AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
0        American Century Equity Growth Fund1                          January 15, 1998
0        American Century Income & Growth Fund1                        January 15, 1998
0        American Century Global Gold Fund1                            January 15, 1998
0        American Century Global Natural Resources Fund1               January 15, 1998
0        American Century Utilities Fund1                              January 15, 1998
0        American Century Small Cap Quantitative Fund1                 July 30, 1998

AMERICAN CENTURY STRATEGIC ASSET ALLOCATIONS, INC.
0        American Century Strategic Allocation: Aggressive1            January 15, 1998
0        American Century Strategic Allocation: Conservative           January 15, 1998
0        American Century Strategic Allocation: Moderate1              January 15, 1998

AMERICAN CENTURY TARGET MATURITIES TRUST
0        Benham Target Maturities Trust:  20001                        January 15, 1998
0        Benham Target Maturities Trust:  20051                        January 15, 1998
0        Benham Target Maturities Trust:  20101                        January 15, 1998
0        Benham Target Maturities Trust:  20151                        January 15, 1998
0        Benham Target Maturities Trust:  20201                        January 15, 1998
0        Benham Target Maturities Trust:  20251                        January 15, 1998

AMERICAN CENTURY VARIABLE PORTFOLIOS, INC.
0        American Century VP Advantage                                 January 15, 1998
0        American Century VP Balanced                                  January 15, 1998
0        American Century VP Capital Appreciation                      January 15, 1998
0        American Century VP International                             January 15, 1998
0        American Century VP Income & Growth                           January 15, 1998
0        American Century VP Value                                     January 15, 1998

AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
0        Twentieth Century Emerging Markets Fund1                      January 15, 1998
0        Twentieth Century International Growth Fund1                  January 15, 1998
0        Twentieth Century International Discovery Fund1               January 15, 1998
0        Twentieth Century Global Growth Fund1                         December 1, 1998

- ----------
(1) Multiple Classes of Shares
<PAGE>
                                   SCHEDULE C

                            Institutional Class Funds

Fund                                                                   Date of Agreement
- ----                                                                   -----------------

AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
0        American Century Equity Income Fund                           January 15, 1998
0        American Century Real Estate Fund                             January 15, 1998
0        American Century Value Fund                                   January 15, 1998
0        American Century Small Cap Value Fund                         July 30, 1998
0        American Century Equity Index Fund                            January 29, 1999

AMERICAN CENTURY MUTUAL FUNDS, INC.
0        American Century Balanced Fund                                January 15, 1998
0        Twentieth Century Growth Fund                                 January 15, 1998
0        Twentieth Century Heritage Fund                               January 15, 1998
0        Twentieth Century Select Fund                                 January 15, 1998
0        Twentieth Century Ultra Fund                                  January 15, 1998
0        Twentieth Century Vista Fund                                  January 15, 1998

AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
0        American Century Equity Growth Fund                           January 15, 1998
0        American Century Income & Growth Fund                         January 15, 1998
0        American Century Small Cap Quantitative Fund                  July 30, 1998

AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
0        Twentieth Century Emerging Markets Fund                       January 15, 1998
0        Twentieth Century International Growth Fund                   January 15, 1998
0        Twentieth Century International Discovery Fund                January 15, 1998
0        Twentieth Century Global Growth Fund                          December 1, 1998
<PAGE>
                                   SCHEDULE D

                               Service Class Funds
Fund                                                                   Date of Agreement
- ----                                                                   -----------------

AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
0        American Century Equity Income Fund                           January 15, 1998
0        American Century Real Estate Fund                             January 15, 1998
0        American Century Value Fund                                   January 15, 1998

AMERICAN CENTURY MUTUAL FUNDS, INC.
0        American Century Balanced Fund                                January 15, 1998
0        Twentieth Century Growth Fund                                 January 15, 1998
0        Twentieth Century Heritage Fund                               January 15, 1998
0        Benham Intermediate-Term Bond Fund                            January 15, 1998
0        Benham Limited-Term Bond Fund                                 January 15, 1998
0        Benham Bond Fund                                              January 15, 1998
0        Twentieth Century Select Fund                                 January 15, 1998
0        Twentieth Century Ultra Fund                                  January 15, 1998
0        Twentieth Century Vista Fund                                  January 15, 1998

AMERICAN CENTURY STRATEGIC ASSET ALLOCATIONS, INC.
0        American Century Strategic Allocation: Aggressive             January 15, 1998
0        American Century Strategic Allocation: Conservative           January 15, 1998
0        American Century Strategic Allocation: Moderate               January 15, 1998

AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
0        Twentieth Century Emerging Markets Fund                       January 15, 1998
0        Twentieth Century International Growth Fund                   January 15, 1998
0        Twentieth Century International Discovery Fund                January 15, 1998
<PAGE>
                                   SCHEDULE E

                               Advisor Class Funds

Fund                                                                   Date of Agreement
- ----                                                                   -----------------

AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
0        American Century Equity Income Fund                           January 15, 1998
0        American Century Value Fund                                   January 15, 1998
0        American Century Real Estate Fund                             January 15, 1998
0        American Century Small Cap Value Fund                         July 30, 1998

AMERICAN CENTURY GOVERNMENT INCOME TRUST
0        Benham Short-Term Treasury Fund                               January 15, 1998
0        Benham Intermediate-Term Treasury Fund                        January 15, 1998
0        Benham Long-Term Treasury Fund                                January 15, 1998
0        Benham Government Agency Money Market Fund                    January 15, 1998
0        Benham Short-Term Government Fund                             January 15, 1998
0        Benham GNMA Fund                                              January 15, 1998
0        Benham Inflation-Adjusted Treasury Fund                       January 15, 1998

AMERICAN CENTURY INTERNATIONAL BOND FUNDS
0        Benham International Bond Fund                                January 15, 1998

AMERICAN CENTURY MUTUAL FUNDS, INC.
0        American Century Balanced Fund                                January 15, 1998
0        Twentieth Century Growth Fund                                 January 15, 1998
0        Twentieth Century Heritage Fund                               January 15, 1998
0        Benham Intermediate-Term Bond Fund                            January 15, 1998
0        Benham Limited-Term Bond Fund                                 January 15, 1998
0        Benham Bond Fund                                              January 15, 1998
0        Twentieth Century Select Fund                                 January 15, 1998
0        Twentieth Century Ultra Fund                                  January 15, 1998
0        Twentieth Century Vista Fund                                  January 15, 1998
0        Benham High Yield Fund                                        January 15, 1998

AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
0        American Century Equity Growth Fund                           January 15, 1998
0        American Century Income & Growth Fund                         January 15, 1998
0        American Century Global Gold Fund                             January 15, 1998
0        American Century Global Natural Resources Fund                January 15, 1998
0        American Century Utilities Fund                               January 15, 1998
0        American Century Small Cap Quantitative Fund                  July 30, 1998

AMERICAN CENTURY STRATEGIC ASSET ALLOCATIONS, INC.
0        American Century Strategic Allocation: Aggressive             January 15, 1998
0        American Century Strategic Allocation: Conservative           January 15, 1998
0        American Century Strategic Allocation: Moderate               January 15, 1998

AMERICAN CENTURY TARGET MATURITIES TRUST
0        Benham Target Maturities Trust:  2000                         January 15, 1998
0        Benham Target Maturities Trust:  2005                         January 15, 1998
0        Benham Target Maturities Trust:  2010                         January 15, 1998
0        Benham Target Maturities Trust:  2015                         January 15, 1998
0        Benham Target Maturities Trust:  2020                         January 15, 1998
0        Benham Target Maturities Trust:  2025                         January 15, 1998

AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
0        Twentieth Century Emerging Markets Fund                       January 15, 1998
0        Twentieth Century International Growth Fund                   January 15, 1998
0        Twentieth Century International Discovery Fund                January 15, 1998
0        Twentieth Century Global Growth Fund                          December 1, 1998

AMERICAN CENTURY INVESTMENT TRUST
0        Benham Prime Money Market Fund                                June 1, 1998
</TABLE>

                              DAVID H. REINMILLER
                                Attorney At Law
                       4500 Main Street, P.O. Box 418210
                        Kansas City, Missouri 64141-9210
                            Telephone (816)340-4046
                            Telecopier (816)340-4964

                                                               November 25, 1998

American Century Capital Portfolios, Inc.
American Century Tower 
4500 Main Street
Kansas City, Missouri  64111

Ladies and Gentlemen:

     As counsel to American  Century  Capital  Portfolios,  Inc., I am generally
familiar with its affairs. Based upon this familiarity, and upon the examination
of such documents as I have deemed relevant, it is my opinion that the shares of
the Corporation described in Post-Effective Amendment No. 13 to its Registration
Statement on Form N-1A to be filed with the Securities  and Exchange  Commission
on November  25, 1998,  will,  when issued,  be validly  issued,  fully paid and
nonassessable.

     For the record,  it should be stated  that I am an officer and  employee of
American Century  Services  Corporation,  an affiliated  corporation of American
Century Investment Management,  Inc., the investment adviser of American Century
Capital Portfolios, Inc.

     I hereby consent to the use of this opinion as an exhibit to Post-Effective
Amendment No. 13.

                             Very truly yours,

                             /s/David H. Reinmiller
                             David H. Reinmiller

                     AMENDMENT NO. 5 TO MULTIPLE CLASS PLAN
                                       OF
                    AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
                       AMERICAN CENTURY MUTUAL FUNDS, INC.
               AMERICAN CENTURY STRATEGIC ASSET ALLOCATIONS, INC.
                    AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.


         THIS  AMENDMENT NO. 5 TO MULTIPLE CLASS PLAN is made as of the 29th day
of January,  1999,  by each of the above  named  corporations  (the  "Issuers").
Capitalized  terms not otherwise  defined herein shall have the meaning ascribed
to them in the Multiple Class Plan.

                                    RECITALS

         WHEREAS, the Issuers are parties to a certain Multiple Class Plan dated
as of May 31,  1996,  as amended  by that  certain  Amendment  No. 4 dated as of
November 13, 1998, (the "Plan"); and

         WHEREAS, American Century Capital Portfolios, Inc., has added a series,
American Century Equity Index Fund (the "Fund"), offering multiple classes; and

         WHEREAS,  the  parties  desire  to amend  the Plan to adopt the Plan on
behalf of the Fund.

         NOW,  THEREFORE,  in  consideration  of the mutual  promises  set forth
herein, the parties hereto agree as follows:

         1. American Century Capital Portfolios,  Inc. hereby adopts the Plan on
behalf of the Fund, in accordance  with Rule 18f-3 under the 1940 Act and on the
terms and conditions contained in the Plan.

         2.  Schedule  A to the Plan is  hereby  amended  by  deleting  the text
thereof in its entirety and  inserting in lieu  therefor the Schedule A attached
hereto.

         3. After the date hereof, all references to the Plan shall be deemed to
mean the Multiple Class Plan, as amended by Amendment No. 5.

         5. In the event of a conflict  between the terms of this Amendment No.5
and the  Plan,  it is the  intention  of the  parties  that  the  terms  of this
Amendment No. 5 shall control and the Plan shall be  interpreted  on that basis.
To the extent the provisions of the Plan have not been amended by this Amendment
No. 5, the parties hereby confirm and ratify the Plan.

         6. This  Amendment  No. 5 may be executed in two or more  counterparts,
each of which shall be an original and all of which  together  shall  constitute
one instrument.

         IN WITNESS WHEREOF,  the undersigned have executed this Amendment No. 5
as of the date first above written.

                                  AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
                                  AMERICAN CENTURY MUTUAL FUNDS, INC.
                                  AMERICAN CENTURY STRATEGIC ASSET
                                      ALLOCATIONS, INC.
                                  AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.


                                  BY:  /s/ Patrick A. Looby
                                          Patrick A. Looby
                                          Vice President of each of the Issuers
<PAGE>
<TABLE>
<CAPTION>
                                            SCHEDULE A

                                Companies and Funds Covered by this Multiclass Plan
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
                                                                 Investor       Institutional       Services          Advisor
Fund                                                               Class            Class             Class            Class
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
<S>                                                             <C>           <C>                <C>              <C>
AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
      American Century Equity Income Fund                           Yes              Yes               Yes              Yes
      American Century Value Fund                                   Yes              Yes               Yes              Yes
      American Century Real Estate Fund                             Yes              Yes               No               Yes
      American Century Small Cap Value Fund                         Yes              Yes               No               Yes
      American Century Equity Index Fund                            Yes              Yes               No                No
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
AMERICAN CENTURY MUTUAL FUNDS, INC.
      American Century Balanced Fund                                Yes              Yes               Yes              Yes
      Twentieth Century Growth Fund                                 Yes              Yes               Yes              Yes
      Twentieth Century Heritage Fund                               Yes              Yes               Yes              Yes
      Benham Intermediate-Term Bond Fund                            Yes              No                Yes              Yes
      Benham Limited-Term Bond Fund                                 Yes              No                Yes              Yes
      Benham Bond Fund                                              Yes              No                Yes              Yes
      Twentieth Century Select Fund                                 Yes              Yes               Yes              Yes
      Twentieth Century Ultra Fund                                  Yes              Yes               Yes              Yes
      Twentieth Century Vista Fund                                  Yes              Yes               Yes              Yes
      Twentieth Century Giftrust                                    Yes              No                No                No
      Twentieth Century New Opportunities Fund                      Yes              No                No                No
      Benham High-Yield Fund                                        Yes              No                No               Yes
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
AMERICAN  CENTURY STRATEGIC ASSET ALLOCATIONS, INC.                   
      American Century Strategic Allocation: Aggressive             Yes              No                Yes              Yes  
      American Century Strategic Allocation: Conservative           Yes              No                Yes              Yes
      American Century Strategic Allocation: Moderate               Yes              No                Yes              Yes
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
AMERICAN CENTURY WORLD MUTUAL FUNDS, INC.
      Twentieth Century International Growth Fund                   Yes              Yes               Yes              Yes
      Twentieth Century International Discovery Fund                Yes              Yes               Yes              Yes
      Twentieth Century Emerging Markets Fund                       Yes              Yes               Yes              Yes
      Twentieth Century Global Growth Fund                          Yes              Yes               No               Yes
- --------------------------------------------------------------- ------------ -------------------- -------------- -------------------
</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  CAPITAL  PORTFOLIOS,  INC.  AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK>  0000908186
<NAME> AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
<SERIES>
   <NUMBER> 1
   <NAME> AMERICAN CENTURY EQUITY INDEX FUND
       
<S>                         <C>
<PERIOD-TYPE>                                       YEAR
<FISCAL-YEAR-END>                            MAR-31-1998
<PERIOD-END>                                 MAR-31-1998
<INVESTMENTS-AT-COST>                                  0
<INVESTMENTS-AT-VALUE>                                 0
<RECEIVABLES>                                          0
<ASSETS-OTHER>                                         0
<OTHER-ITEMS-ASSETS>                                   0
<TOTAL-ASSETS>                                         0
<PAYABLE-FOR-SECURITIES>                               0
<SENIOR-LONG-TERM-DEBT>                                0
<OTHER-ITEMS-LIABILITIES>                              0
<TOTAL-LIABILITIES>                                    0
<SENIOR-EQUITY>                                        0
<PAID-IN-CAPITAL-COMMON>                               0
<SHARES-COMMON-STOCK>                                  0
<SHARES-COMMON-PRIOR>                                  0
<ACCUMULATED-NII-CURRENT>                              0
<OVERDISTRIBUTION-NII>                                 0
<ACCUMULATED-NET-GAINS>                                0
<OVERDISTRIBUTION-GAINS>                               0
<ACCUM-APPREC-OR-DEPREC>                               0
<NET-ASSETS>                                           0
<DIVIDEND-INCOME>                                      0
<INTEREST-INCOME>                                      0
<OTHER-INCOME>                                         0
<EXPENSES-NET>                                         0
<NET-INVESTMENT-INCOME>                                0
<REALIZED-GAINS-CURRENT>                               0
<APPREC-INCREASE-CURRENT>                              0
<NET-CHANGE-FROM-OPS>                                  0
<EQUALIZATION>                                         0
<DISTRIBUTIONS-OF-INCOME>                              0
<DISTRIBUTIONS-OF-GAINS>                               0
<DISTRIBUTIONS-OTHER>                                  0
<NUMBER-OF-SHARES-SOLD>                                0
<NUMBER-OF-SHARES-REDEEMED>                            0
<SHARES-REINVESTED>                                    0
<NET-CHANGE-IN-ASSETS>                                 0
<ACCUMULATED-NII-PRIOR>                                0
<ACCUMULATED-GAINS-PRIOR>                              0
<OVERDISTRIB-NII-PRIOR>                                0
<OVERDIST-NET-GAINS-PRIOR>                             0
<GROSS-ADVISORY-FEES>                                  0
<INTEREST-EXPENSE>                                     0
<GROSS-EXPENSE>                                        0
<AVERAGE-NET-ASSETS>                                   0
<PER-SHARE-NAV-BEGIN>                               0.00
<PER-SHARE-NII>                                        0
<PER-SHARE-GAIN-APPREC>                             0.00
<PER-SHARE-DIVIDEND>                                0.00
<PER-SHARE-DISTRIBUTIONS>                           0.00
<RETURNS-OF-CAPITAL>                                0.00
<PER-SHARE-NAV-END>                                    0
<EXPENSE-RATIO>                                     0.00
<AVG-DEBT-OUTSTANDING>                                 0
<AVG-DEBT-PER-SHARE>                                   0
        

</TABLE>


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