AMERICAN CENTURY PREMIUM RESERVES INC
497K2, 1998-11-09
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                                  FUND PROFILE

                                  Premium Bond

                                 INVESTOR CLASS

                                November 6, 1998

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

- --------------------------------------------------------------------------------
     This profile summarizes key information about the fund that is included
         in the fund's Prospectus. The fund's Prospectus has additional
    information about the fund, including a more detailed description of the
         risks associated with investing in the fund, that you may want
     to consider before you invest. You may obtain the Prospectus and other
     information about the fund at no cost by calling us at 1-800-345-2021,
         accessing our Web site or visiting one of our Investor Centers.
      See the back cover for additional telephone numbers and our address.

                                  BENHAM GROUP


                          AMERICAN CENTURY INVESTMENTS

                                  PREMIUM BOND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

        Premium  Bond  seeks  a  high  level  of  income  from   investments  in
     longer-term bonds and other debt instruments.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

        The fund invests in a variety of high- and medium-grade  debt securities
     payable in both U.S. and foreign  currencies.  Generally,  bonds make up at
     least 65% of the fund's assets,  and shorter-term debt securities round out
     the portfolio.

        The fund  primarily  invests in  investment-grade  securities,  that is,
     securities  rated in the four  highest  categories  by  independent  rating
     organizations.  However,  the fund may  invest  up to 15% of its  assets in
     fifth-category-rated  securities.  The  fund  may also  invest  in  unrated
     securities if the manager  determines  that they are of  equivalent  credit
     quality.

        Three  basic  principles  of  fixed-income  investing  impact the fund's
     management.

        *   Bond prices  generally  move in the  opposite  direction of interest
            rates.

        *   The longer the  maturity of a debt  security,  the higher its yield,
            but the greater its price volatility and risk.

        *   The lower the  credit  quality  of a debt  security,  the higher its
            yield, but the greater its price volatility and risk.

        In light of these principles, the fund's managers pay close attention to
     the interest rate  sensitivity and credit quality of the fund's  portfolio.
     Adjusted  duration is one of the tools they use to gauge how much the value
     of the fund will change if interest  rates change.  The higher the adjusted
     duration  number,  the more the value of the fund will  change if  interest
     rates  change.  The  weighted  average  adjusted  duration  of  the  fund's
     portfolio must be 3.5 years or greater.  During periods of rising  interest
     rates, the fund's managers may adopt a shorter portfolio  duration in order
     to reduce the  effect of bond price  declines  on the  fund's  value.  When
     interest  rates are falling  and bond  prices are rising,  they may adopt a
     longer portfolio duration.

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

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

    *   When  interest  rates  change,  the fund's share value will be affected.
        Generally,  when  interest  rates  rise,  the  fund's  share  value will
        decline. The opposite is true when interest rates decline. This interest
        rate risk is higher for  Premium  Bond than for funds that have  shorter
        weighted average adjusted durations, such as money market and short-term
        bond funds.

    *   The lowest  rated bonds in which the fund may invest,  BBB- and BB-rated
        bonds, contain some speculative  characteristics.  Having these bonds in
        the fund's portfolio means the fund's value may go down more if interest
        rates or other  economic  conditions  change than if the fund  contained
        only higher-rated bonds.

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

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

        In summary,  Premium Bond is designed for investors who want a bond fund
     with the potential for a higher level of income than is generally  provided
     by money  market or  short-term  bond funds.  Investors in the fund must be
     prepared,  however,  to weather  the  generally  greater  price  volatility
     associated with the longer-term bonds that the fund buys.


Premium Bond                                        American Century Investments


     FUND PERFORMANCE

        The following bar chart shows the actual  performance  of Premium Bond's
     Investor Class shares for each calendar year since the fund's  inception on
     April 1,  1993.  The bar  chart  indicates  the  volatility  of the  fund's
     historical  returns  from  year to  year.  Neither  the bar  chart  nor the
     performance  information below it is intended to indicate how the fund will
     perform in the future.

[bar chart]

CALENDAR YEAR-BY-YEAR RETURNS
                      1994     1995     1996      1997
                      ----     ----     ----      ----
Premium Bond          4.10    20.10     2.73      8.85

As of September 30, 1998, the end of the most recent calendar  quarter,  Premium
Bond's year-to-date return was 7.89%.

        The highest and lowest returns of the fund's Investor Class shares for a
     calendar  quarter since the fund's inception on April 1, 1993, are provided
     in the  following  chart  to  indicate  the  fund's  historical  short-term
     volatility.

[bar chart]

     Highest and Lowest Quarterly Returns
          Quarter Ended 6/30/95      6.82%
          Quarter Ended 3/31/94     -3.47%

        The  following  table  shows the  average  annual  return of the  fund's
     Investor Class shares for the periods indicated.  The Lehman Aggregate Bond
     Index, an unmanaged index that reflects no operating  costs, is included as
     a  benchmark  for  long-term  performance  comparisons.  It consists of the
     Lehman Government/Corporate Index and the Lehman Mortgage-Backed Securities
     Index and  reflects the price  fluctuations  of Treasury  securities,  U.S.
     government  agency  securities,  corporate bond issues and  mortgage-backed
     securities.

                                     1 YEAR        5 YEARS       LIFE OF FUND
      AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1998)
            Premium Bond             10.75%        6.79%             7.03%
            Lehman Aggregate
               Bond Index            11.51%        7.21%             7.55%

        For current performance information, including yields, please call us or
        access our Web site.

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

        There  are no sales  loads,  fees or other  charges  to buy fund  shares
     directly from American Century, to reinvest dividends in additional shares,
     to exchange into the Investor Class shares of other American Century funds,
     or to redeem  your  shares.  The  following  table  describes  the fees and
     expenses that you may pay if you buy and hold shares of the fund.

      ANNUAL FUND OPERATING EXPENSES
      (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
           Management Fee                                 0.45%
           Distribution and Service (12b-1) Fees          None
           Other Expenses(1)                              0.00%
           Total Annual Fund Operating Expenses           0.45%

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

           EXAMPLE OF HYPOTHETICAL FUND COSTS
              Assuming you . . .
              * invest $10,000 in the fund
              * redeem your shares at the end of the periods shown below 
              * earn a 5% return each year 
              * incur the same fund operating expenses shown above
                  . . . your cost of investing in the fund would be:

           1 year       3 years        5 years        10 years
           ---------------------------------------------------
            $46          $144           $252            $566

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

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

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

        NORMAN E. HOOPS, Senior Vice President and Portfolio Manager, has been a
     member of the team that manages  Premium  Bond since April 1993.  He joined
     American Century as Vice President and Portfolio Manager in November 1989.
     In April 1993, he became Senior Vice President.


Fund Profile                                                        Premium Bond


        JEFFREY L.  HOUSTON,  Portfolio  Manager,  has been a member of the team
     that manages Premium Bond since June 1995. He joined American Century as an
     Investment Analyst in 1990 and was promoted to Portfolio Manager in 1994.

6. HOW DO I BUY FUND SHARES?

    *   Complete and return the enclosed application

    *   Call us and exchange shares from another American Century fund

    *   Call us and send your investment by bank wire transfer

        Your initial investment must be at least $100,000.  If the value of your
     account  falls  below this  account  minimum,  your  shares may be redeemed
     involuntarily.

7. HOW DO I SELL FUND SHARES?

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

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

        Dividends of net income are declared and available for redemption daily.
     They will be paid  monthly on the last Friday of each month.  Premium  Bond
     pays  distributions of realized capital gains, if any, once a year, usually
     in December. Distributions may be taxable as ordinary income, capital gains
     or a combination  of the two.  Capital  gains are taxed at different  rates
     depending  on the  length  of time the fund held the  securities  that were
     sold.  Distributions  are  reinvested  automatically  in additional  shares
     unless you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

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

    *   telephone transactions

    *   wire and electronic funds transfers

    *   24-hour Automated Information Line transactions

    *   24-hour online Internet account access and transactions

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

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

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

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

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

WWW.AMERICANCENTURY.COM

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

AUTOMATED INFORMATION LINE
1-800-345-8765

INSTITUTIONAL, CORPORATE, KEOGH, SEP/SARSEP,
SIMPLE AND 403(B) SERVICES
1-800-345-3533

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

FAX
816-340-7962

                                                        Funds Distributor, Inc.

SH-BRO-13771   9811
<PAGE>
                                  FUND PROFILE

                             Premium Capital Reserve

                                 INVESTOR CLASS

                                November 6, 1998

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

- --------------------------------------------------------------------------------
     This profile summarizes key information about the fund that is included
          in the fund's Prospectus. The fund's Prospectus has additional
       information about the fund,  including a more detailed description of the
        risks associated with investing in the fund, that you may want
      to consider before you invest. You may obtain the Prospectus and other
      information about the fund at no cost by calling us at 1-800-345-2021,
          accessing our Web site or visiting one of our Investor Centers.
        See the back cover for additional telephone numbers and our address.

                                  BENHAM GROUP


                          AMERICAN CENTURY INVESTMENTS

                             PREMIUM CAPITAL RESERVE

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

        Premium  Capital  Reserve is a money  market fund that seeks to earn the
     highest  level  of  current  income  while  preserving  the  value  of your
     investment.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

        The fund earns its income by investing in high-quality,  cash-equivalent
     securities.   These   securities  are  short-term   obligations  of  banks,
     governments and corporations that are payable in U.S. dollars.

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

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

    *An  investment  in the fund is not a bank  deposit and it is not insured or
     guaranteed  by the  Federal  Deposit  Insurance  Corporation  or any  other
     government  agency.  Although  the fund seeks to preserve the value of your
     investment at $1.00 per share, it is possible to lose money by investing in
     the fund.

    *Because   cash-equivalent   securities  are  among  the  safest  securities
     available,  the  interest  they pay is among the lowest  for  income-paying
     securities.  Accordingly,  the yield on this fund will likely be lower than
     for funds that invest in longer-term or lower-quality securities.

     FUND PERFORMANCE

        The following bar chart shows the actual  performance of Premium Capital
     Reserve's  Investor  Class shares for each  calendar  year since the fund's
     inception on April 1, 1993.  The bar chart  indicates the volatility of the
     fund's historical  returns from year to year. Neither the bar chart nor the
     performance  information below it is intended to indicate how the fund will
     perform in the future.

[bar chart]

CALENDAR YEAR-BY-YEAR RETURNS
                                 1994     1995     1996     1997
                                 ----     ----     ----     ----
Premium Capital Reserve          3.97     5.70     5.16     5.31

As of September 30, 1998, the end of the most recent calendar  quarter,  Premium
Capital Reserve's year-to-date return was 3.98%

        The highest and lowest returns of the fund's Investor Class shares for a
     calendar  quarter since the fund's inception on April 1, 1993, are provided
     in the  following  chart  to  indicate  the  fund's  historical  short-term
     volatility.

[bar chart]

     Highest and Lowest Quarterly Returns
          Quarter Ended 6/30/95      1.43%
          Quarter Ended 9/30/93      0.69%


Premium Capital Reserve                             American Century Investments


        The  following  table  shows the  average  annual  return of the  fund's
     Investor Class shares for the periods  indicated.  The 90-Day Treasury Bill
     Index, an unmanaged index that reflects no operating  costs, is included as
     a benchmark  for  long-term  performance  comparisons.  It is derived  from
     secondary market interest rates as published by the Federal Reserve Bank.

                                          1 YEAR     5 YEARS     LIFE OF FUND
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1998)
            Premium Capital Reserve        5.38%      4.97%          4.77%
            90-Day Treasury Bill Index     5.11%      4.96%          4.79%

        For current performance information, including yields, please call us or
        access our Web site.

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

        There  are no sales  loads,  fees or other  charges  to buy fund  shares
     directly from American Century, to reinvest dividends in additional shares,
     to exchange into the Investor Class shares of other American Century funds,
     or to redeem  your  shares.  The  following  table  describes  the fees and
     expenses that you may pay if you buy and hold shares of the fund.

      ANNUAL FUND OPERATING EXPENSES
      (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
           Management Fee                                 0.45%
           Distribution and Service (12b-1) Fees          None
           Other Expenses(1)                              0.00%
           Total Annual Fund Operating Expenses           0.45%

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

           EXAMPLE OF HYPOTHETICAL FUND COSTS
              Assuming you . . .
              * invest $10,000 in the fund
              * redeem your shares at the end of the periods shown below 
              * earn a 5% return each year 
              * incur the same fund operating expenses shown above
                  . . . your cost of investing in the fund would be:

           1 year       3 years        5 years       10 years
           --------------------------------------------------
            $46          $144           $252           $566

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

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

        American  Century  Investment   Management,   Inc.  provides  investment
     advisory and management  services for the fund. American Century uses teams
     of portfolio  managers,  assistant  portfolio managers and analysts working
     together to manage its mutual funds. The portfolio  managers on the Premium
     Capital Reserve team are:

        DENISE TABACCO,  Portfolio  Manager,  has been a member of the team that
     manages  Premium  Capital  Reserve since November 1996. She joined American
     Century in 1988, becoming a member of its portfolio  department in 1991. In
     1995 she assumed her current position as a Portfolio Manager.

        JOHN F.  WALSH,  Portfolio  Manager,  has been a member of the team that
     manages Premium Capital Reserve since May 1997. He joined American  Century
     in February  1996 as an  Investment  Analyst,  a position he held until May
     1997. At that time he was promoted to Portfolio  Manager.  Prior to joining
     American  Century,  Mr.  Walsh served as an Assistant  Vice  President  and
     Analyst at First Interstate Bank, Los Angeles, California.

6. HOW DO I BUY FUND SHARES?

    *   Complete and return the enclosed application

    *   Call us and exchange shares from another American Century fund

    *   Call us and send your investment by bank wire transfer

        Your initial investment must be at least $100,000.  If the value of your
     account  falls  below this  account  minimum,  your  shares may be redeemed
     involuntarily.

7. HOW DO I SELL FUND SHARES?

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


Fund Profile                                             Premium Capital Reserve


8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

        Dividends are declared and available for redemption  daily.  Because the
     fund is a money market fund, its  distributions  generally will be taxed as
     ordinary  income.  If the fund's  share  price  were to go up or down,  its
     annual   distributions   also  could  include   capital  gains  or  losses.
     Distributions are reinvested  automatically in additional shares unless you
     choose another option.

9. WHAT SERVICES ARE AVAILABLE?

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

    *   telephone transactions
  
    *   wire and electronic funds transfers

    *   24-hour Automated Information Line transactions

    *   24-hour online Internet account access and transactions

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

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

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

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

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

WWW.AMERICANCENTURY.COM

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

AUTOMATED INFORMATION LINE
1-800-345-8765

INSTITUTIONAL, CORPORATE, KEOGH, SEP/SARSEP,
SIMPLE AND 403(B) SERVICES
1-800-345-3533

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

FAX
816-340-7962

                                                        Funds Distributor, Inc.

SH-BRO-13772   9811
<PAGE>
                                  FUND PROFILE

                           Premium Government Reserve

                                 INVESTOR CLASS

                                November 6, 1998

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

- --------------------------------------------------------------------------------
     This profile summarizes key information about the fund that is included
          in the fund's Prospectus. The fund's Prospectus has additional
       information about the fund,  including a more detailed description of the
        risks associated with investing in the fund, that you may want
      to consider before you invest. You may obtain the Prospectus and other
      information about the fund at no cost by calling us at 1-800-345-2021,
          accessing our Web site or visiting one of our Investor Centers.
        See the back cover for additional telephone numbers and our address.

                                  BENHAM GROUP


                          AMERICAN CENTURY INVESTMENTS

                           PREMIUM GOVERNMENT RESERVE

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

        Premium Government Reserve is a money market fund that seeks to earn the
     highest  level  of  current  income  while  preserving  the  value  of your
     investment.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

        The  fund  earns  its  income  by  investing  in  very  short-term  U.S.
     government  securities.  These securities are short-term obligations of the
     U.S. government, its agencies and instrumentalities.

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

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

    *An  investment  in the fund is not a bank  deposit and it is not insured or
     guaranteed  by the  Federal  Deposit  Insurance  Corporation  or any  other
     government  agency.  Although  the fund seeks to preserve the value of your
     investment at $1.00 per share, it is possible to lose money by investing in
     the fund.

    *Because  very  short-term   securities  are  among  the  safest  securities
     available,  the  interest  they pay is among the lowest  for  income-paying
     securities.  Accordingly,  the yield on this fund will likely be lower than
     for funds that invest in longer-term or lower-quality securities.

     FUND PERFORMANCE

        The  following  bar  chart  shows  the  actual  performance  of  Premium
     Government Reserve's Investor Class shares for each calendar year since the
     fund's  inception on April 1, 1993. The bar chart  indicates the volatility
     of the fund's historical  returns from year to year.  Neither the bar chart
     nor the  performance  information  below it is intended to indicate how the
     fund will perform in the future.

[bar chart]

CALENDAR YEAR-BY-YEAR RETURNS
                                    1994      1995     1996     1997
                                    ----      ----     ----     ----
Premium Government Reserve          3.90      5.63     5.10     5.20

As of September 30, 1998, the end of the most recent calendar  quarter,  Premium
Government Reserve's year-to-date return was 3.90%.

        The highest and lowest returns of the fund's Investor Class shares for a
     calendar  quarter since the fund's inception on April 1, 1993, are provided
     in the  following  chart  to  indicate  the  fund's  historical  short-term
     volatility.

[bar chart]

     Highest and Lowest Quarterly Returns
          Quarter Ended 6/30/95      1.42%
          Quarter Ended 3/31/94     -0.68%

        The  following  table  shows the  average  annual  return of the  fund's
     Investor Class shares for the periods  indicated.  The 90-Day Treasury Bill
     Index, an unmanaged index that reflects no operating  costs, is included as
     a benchmark  for  long-term  performance  comparisons.  It is derived  from
     secondary market interest rates as published by the Federal Reserve Bank.


Premium Government Reserve                          American Century Investments


                                            1 YEAR     5 YEARS     LIFE OF FUND
      AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED SEPTEMBER 30, 1998)
            Premium Government Reserve       5.25%      4.89%          4.69%
            90-Day Treasury Bill Index       5.11%      4.96%          4.79%

        For current performance information, including yields, please call us or
        access our Web site.

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

        There  are no sales  loads,  fees or other  charges  to buy fund  shares
     directly from American Century, to reinvest dividends in additional shares,
     to exchange into the Investor Class shares of other American Century funds,
     or to redeem  your  shares.  The  following  table  describes  the fees and
     expenses that you may pay if you buy and hold shares of the fund.

      ANNUAL FUND OPERATING EXPENSES
      (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
           Management Fee                                 0.45%
           Distribution and Service (12b-1) Fees          None
           Other Expenses(1)                              0.00%
           Total Annual Fund Operating Expenses           0.45%

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

           EXAMPLE OF HYPOTHETICAL FUND COSTS
              Assuming you . . .
              * invest $10,000 in the fund
              * redeem your shares at the end of the periods shown below 
              * earn a 5% return each year 
              * incur the same fund operating expenses shown above
                  . . . your cost of investing in the fund would be:

           1 year      3 years       5 years       10 years
           ------------------------------------------------
            $46          $144         $252           $566

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

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

        American  Century  Investment   Management,   Inc.  provides  investment
     advisory and management  services for the fund. American Century uses teams
     of portfolio  managers,  assistant  portfolio managers and analysts working
     together to manage its mutual funds. The portfolio  managers on the Premium
     Government Reserve team are:

        AMY  O'DONNELL,  Portfolio  Manager,  has been a member of the team that
     manages  Premium  Government  Reserve since April 1997. She joined American
     Century in 1987, becoming a member of its portfolio  department in 1988. In
     1992 she assumed her current position as a Portfolio Manager.

        DENISE TABACCO,  Portfolio  Manager,  has been a member of the team that
     manages Premium Government Reserve since November 1996. She joined American
     Century in 1988, becoming a member of its portfolio  department in 1991. In
     1995 she assumed her current position as a Portfolio Manager.

6. HOW DO I BUY FUND SHARES?

    *   Complete and return the enclosed application

    *   Call us and exchange shares from another American Century fund

    *   Call us and send your investment by bank wire transfer

        Your initial investment must be at least $100,000.  If the value of your
     account  falls  below this  account  minimum,  your  shares may be redeemed
     involuntarily.

7. HOW DO I SELL FUND SHARES?

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


Fund Profile                                          Premium Government Reserve


8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

        Dividends are declared and available for redemption  daily.  Because the
     fund is a money market fund, its  distributions  generally will be taxed as
     ordinary  income.  If the fund's  share  price  were to go up or down,  its
     annual   distributions   also  could  include   capital  gains  or  losses.
     Distributions are reinvested  automatically in additional shares unless you
     choose another option.

9. WHAT SERVICES ARE AVAILABLE?

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

    *   telephone transactions

    *   wire and electronic funds transfers

    *   24-hour Automated Information Line transactions

    *   24-hour online Internet account access and transactions

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

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

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

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

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

WWW.AMERICANCENTURY.COM

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

AUTOMATED INFORMATION LINE
1-800-345-8765

INSTITUTIONAL, CORPORATE, KEOGH, SEP/SARSEP,
SIMPLE AND 403(B) SERVICES
1-800-345-3533

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

FAX
816-340-7962

                                                        Funds Distributor, Inc.

SH-BRO-13773   9811


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