USAA INVESTMENT TRUST
485APOS, 1998-07-31
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     As filed with the Securities and Exchange Commission on July 31, 1998.
    
                                                     1933 Act File No. 2-91069
                                                     1940 Act File No. 811-4019

                       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. 26
    
                                      and

       REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 X
   
                                Amendment No. 27
    
                             USAA INVESTMENT TRUST
               (Exact Name of Registrant as Specified in Charter)
   
                9800 FREDERICKSBURG ROAD, SAN ANTONIO, TX 78288
    
              (Address of Principal Executive Offices) (Zip Code)

       Registrant's Telephone Number, including Area Code (210) 498-0600

                          Michael D. Wagner, Secretary
                             USAA INVESTMENT TRUST
   
                            9800 Fredericksburg Road
    
                           SAN ANTONIO, TX 78288-0227
                    (Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering:  As soon as practicable after the
effective date of this Registration Statement.

It is proposed that this filing will become effective under Rule 485

___ immediately upon filing pursuant to paragraph (b)
   
___ on (date) pursuant to paragraph (b)
    
___ 60 days after filing pursuant to paragraph (a)(1)
   
_X_ on (October 1, 1998) pursuant to paragraph (a)(1)
    
___ 75 days after filing pursuant to paragraph (a)(2)
___ on (date) pursuant to paragraph (a)(2)

If appropriate, check the following box:

___ This  post-effective  amendment designates a new effective date for a 
    previously filed post-effective amendment.
   
                        Exhibit Index on Pages 349 - 350
                                                                  Page 1 of 427
    
<PAGE>
                             USAA INVESTMENT TRUST

                             CROSS REFERENCE SHEET

                                     PART A

FORM N-1A ITEM NO.                          SECTION IN PROSPECTUS
   
1.   Front and Back Cover Pages............ Same

2.   Risk/Return Summary: Investments,
      Risks, and Performance............... What is the Fund's Investment
                                             Objective and Main Strategy?
                                            Main Risks of Investing in This
                                             Fund
                                            Could the Value of Your Investment
                                             In This Fund Fluctuate?

3.   Risk/Return Summary: Fee Table ......  Fees and Expenses

4.   Investment Objectives, Principal
      Investment Strategies, and
      Related Risks.......................  What is the Fund's Investment
                                             Objective and Main Strategy?
                                            Fund Investments

5.   Management's Discussion
      of Fund Performance.................  Not Applicable

6.   Management, Organization, and
      Capital Structure...................  Fund Management

7.   Shareholder Information .............  How to Invest
                                            Important Information About
                                             Purchases and Redemptions
                                            Exchanges
                                            Shareholder Information

8.   Distribution Arrangements............  Not Applicable

9.   Financial Highlights Information.....  Financial Highlights
    
<PAGE>
                             USAA INVESTMENT TRUST

                             CROSS REFERENCE SHEET

                                     PART B


FORM N-1A ITEM NO.                          SECTION IN STATEMENT OF ADDITIONAL
                                            INFORMATION
   
10.  Cover Page and Table of Contents.....  Same

11.  Fund History.........................  Description of Shares

12.  Description of the Fund and Its
      Investments and Risks...............  Investment Policies
                                            Special Risk Considerations
                                            Investment Restrictions
                                            Portfolio Transactions

13.  Management of the Fund...............  Trustees and Officers of the Trust

14.  Control Persons and
      Principal Holders
      of Securities.......................  Trustees and Officers of the Trust

15.  Investment Advisory and
      Other Services......................  Trustees and Officers of the Trust
                                            The Trust's Manager
                                            General Information
16.  Brokerage Allocation and
      Other Practices.....................  Portfolio Transactions

17.  Capital Stock and Other
      Securities..........................  Description of Shares

18.  Purchase, Redemption, and
      Pricing of Shares...................  Valuation of Securities
                                            Conditions of Purchase and 
                                             Redemption
                                            Additional Information Regarding
                                             Redemption of Shares
                                            Investment Plans

19.  Taxation of the Fund.................  Tax Considerations

20.  Underwriters.........................  The Trust's Manager

21.  Calculation of Performance Data......  Calculation of Performance Data

22.  Financial Statements.................  Cover Page
    
<PAGE>
                                     Part A

                              Prospectuses for the
   
          Income Strategy, Growth and Tax Strategy, Balanced Strategy,
         Cornerstone Strategy, Growth Strategy, Emerging Markets, Gold,
             International, and World Growth Funds, GNMA Trust and
                          Treasury Money Market Trust
    
                              are included herein
           

<PAGE>
                                     Part A

                               Prospectus for the

                              Income Strategy Fund

                               is included herein
<PAGE>
                                  USAA INCOME
                                 STRATEGY FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment in This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 7
Fund Management.................................................12
Using Mutual Funds in an Asset Allocation Program...............14
How to Invest...................................................16
Important Information About Purchases and Redemptions...........19
Exchanges.......................................................20
Shareholder Information.........................................21
Financial Highlights............................................24
Appendix A .....................................................25
Appendix B .....................................................29

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's  investment  objective is to seek high current return,  with reduced
risk over time,  through an asset allocation  strategy which emphasizes  income
and gives  secondary  emphasis to long-term  growth of capital.  Using  pre-set
target  ranges,  we will  invest the Fund's  assets  mostly in bonds,  and to a
lesser extent, stocks and money market instruments.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing in this Fund are credit  risk,  interest  rate
risk, and market risk.

o   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline due to an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

o   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities  will  decline due to falls in the stock  market,  reducing  the
    value of individual company's stocks,  regardless of the success or failure
    of an individual company's operations.

Other risks of the Fund described later in the prospectus  include  rebalancing
risk, the risks of foreign investing, and the risks of investing in real estate
investment  trusts  (REITs).  As with other  mutual  funds,  losing money is an
additional risk associated with investing in this Fund.

                                       2
<PAGE>

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are  seeking a fund  that will  diversify  your  holdings  among a wide
    variety of investment categories.
|X| You are looking for current income.
|X| You are willing to accept low to moderate risk.
|X| You are willing to take some exposure to the stock market.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of four years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase  or  decrease.  The bar chart shown on the next page  illustrates  the
Fund's volatility and performance from year to year over the life of the Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1995*               9.94
     1996                3.00
     1997               15.20

     *FUND BEGAN OPERATIONS ON SEPTEMBER 1, 1995.

     THE  INCOME STRATEGY FUND'S  TOTAL RETURN FOR  THE SIX-MONTH  PERIOD ENDED
     JUNE 30, 1998, WAS 6.47%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 8.32%  (quarter  ending  December  31,  1995) and the lowest  total
return for a quarter was -4.99% (quarter ending March 31, 1996).

The table below shows how the Fund's  average  annual  returns for the one-year
period and the life of the Fund compared to those of a  broad-based  securities
market index.  Remember,  historical  performance does not necessarily indicate
what will happen in the future.

===============================================================================
  Average Annual Total Returns                              Since Fund's
  (for the period ending                Past                Inception on
  December 31, 1997)                   1 Year             September 1, 1995
===============================================================================
  Income Strategy Fund                 15.20%                   12.02%
- -------------------------------------------------------------------------------
  Lehman Brothers
     Aggregate Bond Index*              9.65%                    7.98%
===============================================================================
  * THE LEHMAN  BROTHERS  AGGREGATE BOND INDEX IS AN UNMANAGED INDEX MADE UP OF
    THE GOVERNMENT/CORPORATE  INDEX, THE MORTGAGE-BACKED  SECURITIES INDEX, AND
    THE ASSET-BACKED SECURITIES INDEX.

                                       4
<PAGE>

YIELD
                                  YIELD IS THE
                                 ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                                SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                  SHARE PRICE.

All mutual  funds must use the same formula to  calculate  yield.  The Fund may
advertise  performance in terms of a 30-day yield quotation.  The Fund's 30-day
yield for the period ended December 31, 1997, was 4.45%.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 4 8 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, and return information for this Fund,
you may call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu,
press 1 again for prices,  yields, and returns.  Then, press 48# when asked for
the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                     IncStr

                                     TICKER
                                     SYMBOL
                                     USICX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "IncStr." If you prefer to obtain this  information from an on-line
computer service, you can do so by using the ticker symbol "USICX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses before waivers,
if any, during the past fiscal year ended May 31, 1998, and are calculated as a
percentage of average net assets (ANA).

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

       Management Fees                           .50%
       Distribution (12b-1) Fees                 None
       Other Expenses                            .71%
                                                -----
       Total Annual Fund Operating Expenses*    1.21%
                                                =====

                                       5
<PAGE>
- ----------------

   * During the year, we  voluntarily  limited the Total Annual Fund  Operating
     Expenses to 1.00% as follows:

         Total Annual Fund Operating Expenses     1.21%
         Reimbursement from USAA Investment
          Management Company                      (.21%)
                                                  -----
         Actual Fund Operating Expenses
          After Reimbursement                     1.00%
                                                  =====

     We have voluntarily agreed to limit the Fund's annual expenses to 1.00% of
     its ANA and will  reimburse  the Fund for all  expenses  in excess of that
     amount until October 1, 1999.

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
(before any applicable  reimbursement)  remain the same, and (3) you redeem all
of your shares at the end of the periods shown.

                    1 year.......  $  123
                    3 years.......    384
                    5 years.......    665
                   10 years.......  1,466

                                       6
<PAGE>

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's  principal  investment  strategy is to provide a diversified
        investment  program  within one mutual  fund by  allocating  the Fund's
        assets in each of the following investment  categories according to the
        following targeted ranges. Securities are classified by category at the
        time of purchase.

        [PIE CHART]
                                          PERCENTAGE TARGET RANGE OF NET ASSETS
        INVESTMENT CATEGORY
          BONDS                                            75-85%
          STOCKS                                           15-25%
          MONEY MARKET INSTRUMENTS                          0-10%

The ranges allow for a variance within each investment  category.  The Board of
Trustees  may revise the target  ranges upon 60 days' prior  written  notice to
shareholders.  However,  we may go outside the ranges on a temporary  defensive
basis without  shareholder  notification  whenever we believe it is in the best
interest of the Fund and its shareholders.

   Q    Why are stocks and bonds mixed in the same Fund?

   A    From  time  to  time  the  stock  and  bond   markets   may   fluctuate
        independently  of each other.  In other  words,  a decline in the stock
        market  may,  in  certain  instances,  be  offset by a rise in the bond
        market,  or vice versa.  As a result,  the Fund, with its mix of stocks
        and bonds,  is expected in the long run to entail less market risk (and
        potentially  less return) than a mutual fund  investing  exclusively in
        stocks.

                                       7
<PAGE>

   Q    How are the investment categories and target ranges selected?

   A    The  investment  categories  and the target  ranges  were  selected  to
        provide  investors  with a  diversified  investment  in a single mutual
        fund.  Bonds  provide a high current  return  while stocks  provide the
        potential  for  long-term  capital  growth.  Money  market  instruments
        provide a means for temporary  investment  of cash balances  arising in
        the  normal  course  of  business.  Primary  emphasis  for this Fund is
        income.

        However, as a temporary defensive measure because of market,  economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    What actions are taken to keep the Fund's asset allocations  within the
        target ranges?

   A    If market  action  causes the actual  assets of the Fund in one or more
        investment  categories  to  move  outside  the  ranges,  we  will  make
        adjustments to rebalance the portfolio.  In general,  we will rebalance
        the portfolio at least once during each  quarter.  In  rebalancing  the
        Fund's  portfolio,  we will buy or sell securities to return the actual
        allocation  of the  Fund's  assets to within  its  target  ranges.  For
        example,  the Fund's  portfolio  could begin a quarter  with its assets
        allocated 80% in the Bonds category, 15% in the Stocks category, and 5%
        in the Money Market Instruments  category.  During the quarter,  due to
        market  returns,  the  Fund's  portfolio  could  hold 90% in the  Bonds
        category,  5% in  the  Stocks  category,  and 5% in  the  Money  Market
        Instruments  category.  In this  case,  we would sell bonds and use the
        proceeds to buy stocks to bring  bonds and stocks back to within  their
        target ranges.

[CAUTION LIGHT]
REBALANCING  RISKS. In purchasing and selling  securities in order to rebalance
its portfolio,  the Fund will pay more in brokerage  commissions  than it would
without a rebalancing  policy.  As a result of the need to rebalance,  the Fund
also has less  flexibility  in the timing of purchases  and sales of securities
than it would  otherwise.  While we will attempt to minimize any adverse impact
to the Fund or its  shareholders,  the Fund  may  have a higher  proportion  of
capital  gains and a lower return than a fund that does not have a  rebalancing
policy.

                                       8
<PAGE>

Bonds and Money Market Instruments

   Q    What types of bonds are included in the Fund's portfolio?

   A    We will invest in bonds that have been  selected  for their high yields
        in relation to the risk involved.  These  securities must be investment
        grade at the time of purchase and may include any of the following:

        o obligations   of   the   U.S.   Government,    its   agencies,    and
          instrumentalities;
        o mortgage-backed securities;
        o asset-backed securities;
        o corporate debt securities, such as notes and bonds;
        o obligations  of state and local  governments,  and their agencies and
          instrumentalities;
        o master-demand notes;
        o Eurodollar obligations;
        o Yankee obligations; and
        o other debt securities.

        Further  description of these securities is found in APPENDIX A on page
        25.

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What are considered investment-grade securities?

   A    Investment-grade  securities include securities issued or guaranteed by
        the U.S. Government,  its agencies, and  instrumentalities,  as well as
        securities  rated within the categories  listed by the following rating
        agencies:

                                       9
<PAGE>

===============================================================================
                             LONG-TERM             SHORT-TERM
    RATING AGENCY          DEBT SECURITIES       DEBT SECURITIES
===============================================================================
    Moody's Investors                            At least Prime-3 or
       Services, Inc.      At least Baa          MIG 4/VMIG 4
- -------------------------------------------------------------------------------
    Standard & Poor's
       Ratings Group       At least BBB          At least A-3 or SP-2
- -------------------------------------------------------------------------------
    Fitch IBCA, Inc.       At least BBB          At least F-3
- -------------------------------------------------------------------------------
    Duff and Phelps        At least BBB          At least D-3
===============================================================================

        or  if  unrated  by  these  agencies,  we  must  determine  that  these
        securities are of equivalent investment quality.

        You will find a complete  description  of the above debt ratings in the
        Fund's Statement of Additional Information.

[CAUTION  LIGHT]
CREDIT  RISK.  The bonds in the Fund's  portfolio  are subject to credit  risk.
Credit  risk is the  possibility  that an  issuer  of a bond  will fail to make
timely  payments of interest or  principal.  We attempt to minimize  the Fund's
credit risk by investing in securities  considered investment grade at the time
of purchase.  When evaluating potential  investments for the Fund, our analysts
also assess credit risk and its impact on the Fund's  portfolio.  Nevertheless,
even investment-grade  securities are subject to some credit risk. Bonds in the
lowest-rated  investment  grade  category  have  speculative   characteristics.
Changes in economic  conditions or other  circumstances are more likely to lead
to a weakened capability to make principal and interest payments on these bonds
than is the case for higher-rated bonds. In addition, the ratings of securities
are estimates by the rating  agencies of the credit quality of the  securities.
The ratings may not take into account every risk related to whether interest or
principal will be repaid on a timely basis.

   Q    What happens if the rating of a security is downgraded below investment
        grade?

   A    We will  determine  whether  it is in the best  interest  of the Fund's
        shareholders to continue to hold the security in the Fund's  portfolio.
        If  downgrades  result in more than 5% of the Fund's  net assets  being
        invested in securities that are less than investment-grade  quality, we
        will take  immediate  action  to reduce  the  Fund's  holdings  in such
        securities  to 5% or less of the Fund's net  assets,  unless  otherwise
        directed by the Board of Trustees.

                                      10
<PAGE>

   Q    How do the portfolio  managers for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    They  search for  securities  which  represent  value at the time given
        current  market  conditions.  Value is a combination  of yield,  credit
        quality,   structure  (maturity,   coupon,  redemption  features),  and
        liquidity.  Recognizing value is the result of simultaneously analyzing
        the interaction of these factors among the securities  available in the
        market.

   Q    What  types of money  market  instruments  are  included  in the Fund's
        portfolio?

   A    The money  market  instruments  included in the Fund's  portfolio  will
        consist of high-quality,  U.S. dollar  denominated debt securities that
        have  remaining  maturities of one year or less.  They may carry either
        fixed or variable interest rates and may include any of the following:

        o obligations of the U.S. Government;
        o commercial paper, or other short-term corporate obligations;
        o repurchase agreements collateralized with U.S. Government securities;
        o certificates of deposit;
        o bankers' acceptances; and
        o other financial institution obligations.

Stocks

    Q    What types of stocks are included in the Fund's portfolio?

    A   The stocks in the Fund's  portfolio will consist  primarily of dividend
        paying securities which may include any of the following:

        o common  stocks,   securities   convertible  into  common  stocks,  or
          securities which carry the right to buy common stocks (referred to as
          "equity securities");
        o foreign  securities  purchased in foreign or U.S. markets,  including
          American  Depositary  Receipts (ADRs) and Global Depositary  Receipts
          (GDRs); and
        o real estate investment trusts (REITs).

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                   DOLLARS.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's operations. Stock markets tend to run in cycles, with periods

                                      11
<PAGE>

when stock prices  generally  go up,  known as "bull"  markets and periods when
stock  prices  generally  go  down,  referred  to  as  "bear"  markets.  Equity
securities tend to go up and down more than bonds.

[CAUTION LIGHT]
FOREIGN INVESTING. Investing in foreign securities poses unique risks: currency
exchange  rate  fluctuations;   foreign  market  illiquidity;  increased  price
volatility;  exchange control regulations;  foreign ownership limits; different
accounting,   reporting,  and  disclosure  requirements;  and  difficulties  in
obtaining legal judgments.  In the past, equity and debt instruments of foreign
markets  have been more  volatile  than  equity  and debt  instruments  of U.S.
securities markets.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    In selecting stocks for the Fund, he generally follows a value-oriented
        strategy in managing  the equity  portion of the Fund.  He  appraises a
        stock's price in relation to the company's  earnings,  cash flow,  book
        value, and yield. He also considers various qualitative factors such as
        the number of shares the  company's  management  owns,  the attitude of
        investors in general toward the company, and the quality of management.

        He uses the same criteria in deciding  which  securities  to sell.  For
        example,  when a  company's  shares  sell  well  above  their  relative
        historical levels, he may decide to sell the stock.  Occasionally,  his
        decisions  to sell are  based on the  need for cash to  purchase  other
        stock.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 25.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision by the Board of Trustees. For our services, the

                                      12
<PAGE>

Fund pays us an annual fee. The fee,  one-half of one percent (.50%) of average
net assets, is accrued daily and paid monthly.  The fee received for the fiscal
year ended May 31, 1998,  net of  reimbursements,  was equal to .29% of average
net assets.  We also provide  services related to selling the Fund's shares and
receive no compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

BONDS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
JOHN W. SAUNDERS, JR.
John W. Saunders,  Jr., Senior Vice President of Fixed Income Investments since
October 1985, is the asset  allocation  manager of the Fund and has managed the
Bonds  investment  category since  September  1995. He has 29 years  investment
management  experience and has worked for us for 28 years.  Mr. Saunders earned
the Chartered  Financial  Analyst (CFA)  designation in 1976 and is a member of
the  Association  for  Investment  Management  and Research  (AIMR) and the San
Antonio Financial Analysts Society,  Inc. (SAFAS).  He holds a BS from Portland
State University, Oregon.

STOCKS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
R. DAVID ULLOM
R. David Ullom,  Assistant Vice President of Equity Investments since September
1994, has managed the Stocks  investment  category since September 1995. He has
23 years investment  management  experience and has worked for us for 12 years.
Mr. Ullom earned the CFA designation in 1980 and is a member of AIMR and SAFAS.
He holds an MBA from Washington  University,  Missouri,  and a BS from Oklahoma
State University.

                                      13
<PAGE>

MONEY MARKET INSTRUMENTS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAMELA K. BLEDSOE
Pamela K. Bledsoe,  Assistant  Vice  President of Money Market Funds since July
1998,  has managed the Money Market Funds  category since May 1996. She has ten
years investment  management  experience and has worked for us for seven years.
Ms.  Bledsoe  earned  the CFA  designation  in 1992 and is a member of AIMR and
SAFAS. She holds an MBA from Texas Christian University and a BS from Louisiana
Tech University.

USING MUTUAL FUNDS IN AN ASSET ALLOCATION PROGRAM

I. The Idea Behind Asset Allocation

If you have money to invest and hear that stocks may be a good  investment,  is
it a wise  idea to use  your  entire  savings  to buy one  stock?  Most  people
wouldn't -- it would be fortunate if it works,  but this strategy holds a great
deal of risk. Surprising news could be reported tomorrow on your stock, and its
price could soar or plummet.

Careful  investors  understand  this  concept  of risk and  lower  that risk by
diversifying their holdings among a number of securities. That way bad news for
one security may be  counterbalanced  by good news regarding other  securities.
But there is still a question  of risk here.  History  tells us that stocks are
generally more volatile than bonds and that long-term  bonds are generally more
volatile  than  short-term  bonds.  History  also tells us that over many years
investments  having higher risks tend to have higher  returns than  investments
that  carry  lower  risks.  From  these  observations  comes  the idea of asset
allocation.

Asset  allocation is a concept that involves  dividing your money among several
different types of investments -- for example,  stocks,  bonds,  and short-term
investments  such as money market  instruments  -- and keeping that  allocation
until your objectives or the financial markets  significantly  change. That way
you're not pinning all your  financial  success on the  fortunes of one kind of
investment.  Money spread across different  investment  categories can help you
reduce market risk and likely will provide more stability to your total return.

                                      14
<PAGE>

Asset  allocation can work because  different  kinds of  investments  generally
follow  different  up-and-down  cycles.  With a variety of  investments in your
portfolio, some are probably doing well, even when others are struggling.

II. Using Asset Allocation in an Investment Program

Most investors understand the concept of diversification,  but asset allocation
goes beyond  diversifying your portfolio;  it's much more of an active process.
You must evaluate your lifestyle, finances, circumstances, long- and short-term
financial  goals,  and tolerance for investment  risk. Once you have structured
your allocation,  you'll need to review it regularly since your objectives will
change over time. Even though we do not charge sales loads or commissions,  our
sales  representatives  are always  available to assist you in structuring  and
reviewing your investment portfolio.

III. USAA's Series of Asset Strategy Funds

USAA's series of asset allocation funds, our Asset Strategy Funds, are designed
for the long-term  investor and are in line with our investment  philosophy for
investors,  specifically  "buy and hold for the  long-term,"  and "don't try to
time the  market."  As shown on the next page,  each of USAA's  Asset  Strategy
Funds has its own different mix of assets and objectives.

                                      15
<PAGE>

===============================================================================
Fund                   Investment Objective                  Invests In
===============================================================================
Income           Seek high current return, with           Bonds and stocks
Strategy         reduced risk over time, through an
Fund             asset allocation strategy which
                 emphasizes income and gives
                 secondary emphasis to long-term
                 growth of capital.

Growth and Tax   Seek a conservative balance between      Tax exempt bonds and
Strategy Fund    income, the majority of which is tax-    blue chip stocks
                 exempt, and the potential for long-term
                 growth of capital to preserve purchasing
                 power.

Balanced         Seek high total return, with reduced     Stocks and bonds
Strategy         risk over time, through an asset
Fund             allocation strategy that seeks a
                 combination of long-term growth of
                 capital and current income.

Cornerstone      Achieve a positive inflation-adjusted    Foreign & basic value
Strategy         rate of return and a reasonably stable   stocks, government
Fund             value of Fund shares, thereby            securities, real
                 preserving purchasing power of           estate stocks, and
                 shareholders' capital.                   gold stocks

Growth           Seek high total return, with reduced     Small & large cap
Strategy         risk over time, through an asset         stocks, bonds, and
Fund             allocation strategy which emphasizes     international stocks
                 capital appreciation and gives
                 secondary emphasis to income.
===============================================================================

For more  complete  information  about the other  USAA  Asset  Strategy  Funds,
including  charges and expenses,  call us for a  Prospectus.  Read it carefully
before you invest or send money.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed application is required for each new account. However,

                                      16
<PAGE>

after  you open your  initial  account  with us,  you will not need to fill out
another application unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY  GRAPHIC]
o   $3,000 [$500 Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and
    $250 for  IRAs]  or no  initial  investment  if you  elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288

                                      17
<PAGE>

o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Income Strategy Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)________________________________________
       Shareholder(s) Mutual Fund Account Number_____________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

[TELEPHONE GRAPHIC]
PHONE 1-800-531-8448

o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

                                      18
<PAGE>

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.

o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

                                      19
<PAGE>

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired are
offered  in  your  state  of  residence.   The  Fund's   transfer   agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 18.

                                      20
<PAGE>

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at

                                      21
<PAGE>

fair value using methods we have  determined  under the general  supervision of
the Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net investment income dividends  quarterly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares. A portion of these
dividends may qualify for the 70%  dividends  received  deduction  available to
corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

                                      22
<PAGE>

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      23
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total returns in the table  represent the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.

                                  YEAR ENDED MAY 31,        NINE-MONTH
                                  ------------------       PERIOD ENDED
                                  1998          1997       MAY 31, 1996*
                                  ----          ----       -------------

Net asset value at
  beginning of period         $   10.84        $  10.06      $  10.00
Net investment income               .46             .50           .39(b)
Net realized and
  unrealized gain (loss)           1.31             .83          (.06)
Distributions from net
  investment income                (.46)           (.50)         (.22)
Distributions of realized
  capital gains                    (.04)           (.05)         (.05)
                              ---------        --------      --------
Net asset value at
  end of period               $   12.11        $  10.84      $  10.06
                              =========        ========      ========
Total return (%)**                16.72           13.59          3.23
Net assets at end of
  period (000)                $  39,161        $ 13,878      $ 12,173
Ratio of expenses to
  average net assets (%)           1.00            1.00          1.00(a)
Ratio of expenses
  to average net
  assets excluding
  reimbursements (%)               1.21            1.51          1.78(a)
Ratio of net investment
  income to average net
  assets (%)                       4.35            4.80          4.71(a)
Portfolio turnover (%)             7.15           64.71         78.60
- -----------------
  * Fund commenced operations September 1, 1995.
**  Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.
(b) Calculated using weighted average shares.

                                      24
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES

We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation  (Freddie Mac). These securities  represent  ownership in a pool of
mortgage loans. They differ from  conventional  bonds in that principal is paid
back to the  investor as payments are made on the  underlying  mortgages in the
pool. Accordingly, the Fund receives monthly scheduled payments of

                                      25
<PAGE>

principal and interest along with any unscheduled  principal prepayments on the
underlying  mortgages.   Because  these  scheduled  and  unscheduled  principal
payments  must be  reinvested at  prevailing  interest  rates,  mortgage-backed
securities do not provide an effective  means of locking in long-term  interest
rates for the investor. Like other fixed income securities, when interest rates
rise, the value of a mortgage-backed security generally will decline;  however,
when interest rates are declining, the value of mortgage-backed securities with
prepayment features may not increase as much as other fixed income securities.

Mortgage-backed  securities also include  collateralized  mortgage  obligations
(CMOs).  CMOs are obligations fully  collateralized by a portfolio of mortgages
or  mortgage-related  securities.  CMOs are divided into pieces (tranches) with
varying maturities.  The cash flow from the underlying mortgages is used to pay
off each tranche  separately.  CMOs are designed to provide investors with more
predictable maturities than regular mortgage securities but such maturities can
be  difficult  to  predict  because of the  effect of  prepayments.  Failure to
accurately predict  prepayments can adversely affect the Fund's return on these
investments. CMOs may also be less marketable than other securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely
to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

The weighted  average  life of such  securities  is likely to be  substantially
shorter  than their stated  final  maturity as a result of scheduled  principal
payments and unscheduled principal prepayments.

MUNICIPAL LEASE OBLIGATIONS

We may invest the Fund's assets in a variety of instruments  commonly  referred
to as municipal lease obligations, including:

o   Leases,
o   Installment purchase contracts, and
o   Certificates of participation in such leases and contracts.

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending

                                      26
<PAGE>

arrangements between the lender and borrower,  these instruments generally will
not be traded,  and there  generally  is no  secondary  market for these notes,
although they are  redeemable  (and  immediately  repayable by the borrower) at
face  value,  plus  accrued  interest,  at any time.  We will invest the Fund's
assets in master demand notes only if the Board of Trustees or its delegate has
determined that they are of credit quality comparable to the debt securities in
which the Fund generally may invest.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

PUT BONDS

We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated maturity (put bonds).

o   Such securities will normally trade as if maturity is the earlier put date,
    even  though  stated  maturity  is  longer.   Under  the  Fund's  portfolio
    allocation  procedure,  maturity  for put bonds is deemed to be the date on
    which the put becomes exercisable.

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

                                      27
<PAGE>

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

REAL ESTATE INVESTMENT TRUSTS

We may invest the Fund's assets in Real Estate Investment Trusts (REITs), which
may  subject  the Fund to many of the same  risks  associated  with the  direct
ownership  of  real  estate.   In  addition,   REITs  are  dependent  upon  the
capabilities of the REIT manager(s), have limited diversification, and could be
significantly impacted by changes in tax laws.

                                      28
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      29
<PAGE>

                                     NOTES
<PAGE>

                                     NOTES
<PAGE>

If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019
<PAGE>
   
                                     Part A

                               Prospectus for the

                          Growth and Tax Strategy Fund

                               is included herein
    
<PAGE>
                                USAA GROWTH AND
                               TAX STRATEGY FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?..... 2
Main Risks of Investing in This Fund........................... 2
Is This Fund for You?.......................................... 3
Could the Value of Your Investment in This Fund Fluctuate?..... 3
Fees and Expenses.............................................. 5
Fund Investments............................................... 6
Fund Management................................................13
Using Mutual Funds in an Asset Allocation Program..............15
How to Invest..................................................17
Important Information About Purchases and Redemptions..........20
Exchanges......................................................20
Shareholder Information........................................21
Financial Highlights...........................................24
Appendix A ....................................................25
Appendix B ....................................................27

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's  investment  objective  is to seek a  conservative  balance  for the
investor  between  income,  the majority of which is exempt from federal income
tax, and the potential for long-term  growth of capital to preserve  purchasing
power.  Using pre-set  target  ranges,  we will invest a majority of the Fund's
assets in tax-exempt  bonds and money market  instruments  and the remainder in
blue chip stocks.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing in this Fund are  interest  rate risk,  credit
risk, and market risk.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline due to an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

o   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

o   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities  will  decline due to falls in the stock  market,  reducing  the
    value of individual company's stocks,  regardless of the success or failure
    of an individual company's operations.

Other risks of the Fund described later in the prospectus  include  rebalancing
risks and the risks of changes in tax laws  impacting the Fund's  dividends and
distributions.  As with other mutual funds,  losing money is an additional risk
associated with investing in this Fund.

                                       2
<PAGE>

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You  are  seeking  a fund  with  both  tax  relief  and  inflation  hedging
    characteristics.
|X| You are willing to accept moderate risk.
|X| You are willing to take some exposure to the stock market.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You need an investment that provides only tax free income.
|X| You are unable or reluctant to invest for a period of four years or more.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase  or  decrease.  The bar chart shown on the next page  illustrates  the
Fund's volatility and performance from year to year over the life of the Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1989*             16.18
     1990               1.36
     1991              14.68
     1992               4.93
     1993              13.72
     1994              -2.62
     1995              22.70
     1996              11.12
     1997              16.16

     *FUND BEGAN OPERATIONS ON JANUARY 11, 1989.

     THE GROWTH AND TAX STRATEGY  FUND'S TOTAL RETURN FOR THE SIX-MONTH  PERIOD
     ENDED JUNE 30, 1998, WAS 6.90%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 8.42%  (quarter  ending June 30,  1997) and the lowest total return
for a quarter was -3.47% (quarter ending March 31, 1994).

The table below shows how the Fund's  average  annual  returns for the one- and
five-year  periods and the life of the Fund  compared to those of a broad-based
securities market index. Remember,  historical performance does not necessarily
indicate what will happen in the future.

===============================================================================
 Average Annual Total Returns                                    Since Fund's
 (for the period ending                  Past        Past        Inception on
 December 31, 1997)                     1 Year      5 Years    January 11, 1989
===============================================================================
 Growth and Tax Strategy Fund           16.16%      11.89%          10.64%
- -------------------------------------------------------------------------------
 Lehman Brothers Municipal Bond Index*   9.19%       7.36%           8.36%
===============================================================================
   * THE  LEHMAN  BROTHERS  MUNICIPAL BOND  INDEX IS AN UNMANAGED  BENCHMARK OF
     TOTAL RETURN PERFORMANCE FOR THE LONG-TERM,  INVESTMENT-GRADE,  TAX-EXEMPT
     BOND MARKET.

                                       4
<PAGE>

YIELD

                                  YIELD IS THE
                                 ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                                SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                  SHARE PRICE.

All mutual  funds must use the same formula to  calculate  yield.  The Fund may
advertise  performance in terms of a 30-day yield quotation.  The Fund's 30-day
yield for the period ended December 31, 1997, was 3.21%.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                  THEN 5 3 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, and return information for this Fund,
you may call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu,
press 1 again for prices,  yields, and returns.  Then, press 53# when asked for
the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                    Gr&TxStr

                                     TICKER
                                     SYMBOL
                                     USBLX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol "Gr&TxStr." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "USBLX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

       Management Fees                            .50%
       Distribution (12b-1) Fees                  None
       Other Expenses                             .21%
                                                  ----
       Total Annual Fund Operating Expenses       .71%
                                                  ====

                                       5
<PAGE>

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                      1 year......... $ 73
                      3 years........  227
                      5 years........  395
                     10 years........  883

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's  principal  investment  strategy is to provide a diversified
        investment  program  within one mutual  fund by  allocating  the Fund's
        assets in each of the following investment  categories according to the
        following targeted ranges. Securities are classified by category at the
        time of purchase.

        [PIE CHART]
                                          PERCENTAGE TARGET RANGE OF NET ASSETS
        INVESTMENT CATEGORY
          TAX-EXEMPT BONDS                                 41-59%
          BLUE CHIP STOCKS                                 41-49%
          TAX-EXEMPT MONEY 
          MARKET INSTRUMENTS                                0-10%
          (MATURITIES OF ONE
          YEAR OR LESS)

        The ranges allow for a variance  within each investment  category.  The
        Board of  Trustees  may revise the target  ranges  upon 60 days'  prior
        written notice to shareholders.  However,  we may go outside the ranges
        on  a  temporary  defensive  basis  without  shareholder   notification
        whenever  we  believe  it is in the best  interest  of the Fund and its
        shareholders.

                                       6
<PAGE>

   Q    Why are stocks and bonds mixed in the same Fund?

   A    From  time  to  time  the  stock  and  bond   markets   may   fluctuate
        independently  of each other.  In other  words,  a decline in the stock
        market  may,  in  certain  instances,  be  offset by a rise in the bond
        market,  or vice versa.  As a result,  the Fund, with its mix of stocks
        and bonds,  is expected in the long run to entail less market risk (and
        potentially  less return) than a mutual fund  investing  exclusively in
        stocks.

   Q    How are the investment categories and target ranges selected?

   A    The  investment  categories  and the target  ranges  were  selected  to
        provide  investors  with a  diversified  investment  in a single mutual
        fund.  Tax-exempt  bonds provide income exempt from federal income tax.
        Blue chip stocks  provide the potential for long-term  capital  growth.
        Tax-exempt  money  market  instruments  provide a means  for  temporary
        investment of cash balances arising in the normal course of business.

        During normal market conditions,  the Fund's assets will be invested so
        that at least 50% of the  Fund's  annual  income  will be  exempt  from
        federal  personal  income  tax and  excluded  from the  calculation  of
        federal alternative minimum taxes for individual taxpayers. This policy
        may only be changed by a shareholder vote.

   Q    What actions are taken to keep the Fund's asset allocations  within the
        target ranges?

   A    If market  action  causes the actual  assets of the Fund in one or more
        investment  categories  to  move  outside  the  ranges,  we  will  make
        adjustments to rebalance the portfolio.  In general,  we will rebalance
        the portfolio at least once during each  quarter.  In  rebalancing  the
        Fund's  portfolio,  we will buy or sell securities to return the actual
        allocation  of the  Fund's  assets to within  its  target  ranges.  For
        example,  the Fund's  portfolio  could begin a quarter  with its assets
        allocated 50% in the Tax-Exempt  Bonds  category,  45% in the Blue Chip
        Stocks  category,  and 5% in the  Tax-Exempt  Money Market  Instruments
        category. During the quarter, a strong stock market coupled with a weak
        bond market could leave the portfolio with 40% in the Tax-Exempt  Bonds
        category,  55%  in  the  Blue  Chip  Stocks  category,  and  5% in  the
        Tax-Exempt Money Market  Instruments  category.  In this case, we would
        sell blue chip stocks and use the proceeds to buy tax-exempt securities
        to bring the blue chip stocks and tax-exempt bonds back to within their
        target ranges.

                                       7
<PAGE>

[CAUTION LIGHT]
REBALANCING  RISKS. In purchasing and selling  securities in order to rebalance
its portfolio,  the Fund will pay more in brokerage  commissions  than it would
without a rebalancing  policy.  As a result of the need to rebalance,  the Fund
also has less  flexibility  in the timing of purchases  and sales of securities
than  it  would  otherwise.  Although  we  intend  to  manage  the  Fund  in  a
tax-advantaged  manner,  the Fund may have a higher proportion of capital gains
and a lower return than a fund that does not have a rebalancing policy.

Tax-Exempt Bonds and Tax-Exempt Money Market Instruments

   Q    What are tax-exempt securities?

   A    Tax-exempt securities include municipal debt obligations that have been
        issued by states and their political subdivisions, and duly constituted
        state and local  authorities  and  corporations  as well as  securities
        issued by certain U.S. territories or possessions, such as Puerto Rico,
        the  Virgin  Islands,   and  Guam.  They  are  issued  to  fund  public
        infrastructure  projects such as streets and highways,  schools,  water
        and sewer systems,  hospitals, and airports.  Tax-exempt securities may
        also be  issued  to  refinance  outstanding  obligations  as well as to
        obtain  funds for  general  operating  expenses  and for loans to other
        public institutions and facilities.

        Because the projects benefit the public, Congress has granted exemption
        from federal  income taxes for the interest  income  arising from these
        securities.

   Q    What  types  of  tax-exempt  securities  are  included  in  the  Fund's
        portfolio?

   A    The Fund's portfolio may be invested in any of the following tax-exempt
        securities.

        o general  obligation bonds which are secured by the issuer's pledge of
          its faith,  credit, and taxing power for the payment of principal and
          interest;

        o revenue  bonds which are  payable  from the  revenue  derived  from a
          particular  facility or class of facilities  or, in some cases,  from
          proceeds of a special  excise tax or other specific  revenue  source,
          but not from the general taxing power; or

        o industrial  development  bonds  which  are  issued by or on behalf of
          public authorities to obtain funds for privately-operated facilities.

                                       8
<PAGE>

   Q    What is the average  maturity of the securities in the Tax-Exempt Bonds
        category and how is it calculated?

   A    The Tax-Exempt Bonds category includes tax-exempt securities which will
        have a  remaining  maturity  at the time of  purchase  of more than one
        year.  Although the average maturity of the securities in this category
        is not  restricted,  we expect it to exceed ten years. In determining a
        security's  maturity for  purposes of  calculating  the Fund's  average
        maturity,  we may use  estimates of the expected time for its principal
        to be paid.  This can be  substantially  shorter  than its stated final
        maturity.  For a discussion  on the method of  calculating  the average
        weighted maturity of the Fund's portfolio,  see INVESTMENT  POLICIES in
        the Statement of Additional Information.

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What types of tax-exempt  money market  instruments are included in the
        Fund's portfolio?

   A    The tax-exempt money market instruments in the portfolio are tax-exempt
        debt  securities  like  the  type  included  in  the  Tax-Exempt  Bonds
        category. They have remaining stated maturities at the time of purchase
        of one year or less, or are subject to puts or similar demand  features
        resulting in an effective maturity of one year or less.

   Q    What are the credit ratings of these securities?

   A    First, we will only purchase tax-exempt  securities that are considered
        investment grade. For a security to be considered  investment grade, it
        must be:

        o rated by one or more rating  agencies at least in the fourth  highest
          rating category for long-term securities;
        o rated by one or more  rating  agencies  at least  within  the  second
          highest rating category for short-term securities;

                                       9
<PAGE>

        o or, if not rated by those rating agencies, we must determine it to be
          of equivalent investment quality.

        And second,  at least 50% of the combined  total  market  values of the
        tax-exempt bonds and tax-exempt money market  instruments will be rated
        within the three highest long-term rating categories by:

        o Moody's Investors Service, Inc. (Moody's),
        o Standard & Poor's Ratings Group (S&P), or
        o Fitch Investors Service, Inc. (Fitch);
        or in the highest short-term rating category by:
        o Moody's,  S&P, or Fitch;  or if unrated by those three  agencies,  we
          must  determine that these  securities  are of equivalent  investment
          quality.

[CAUTION  LIGHT]
CREDIT RISK. The bonds and money market instruments in the Fund's portfolio are
subject to credit risk. Credit risk is the possibility that an issuer of a bond
or money  market  instrument  will fail to make timely  payments of interest or
principal.  We attempt to  minimize  the Fund's  credit  risk by  investing  in
tax-exempt securities considered investment grade at the time of purchase. When
evaluating potential  investments for the Fund, our analysts also assess credit
risk   and  its   impact   on  the   Fund's   portfolio.   Nevertheless,   even
investment-grade  tax-exempt  securities  are  subject  to  some  credit  risk.
Tax-exempt  securities  in the  lowest-rated  investment  grade  category  have
speculative   characteristics.   Changes  in  economic   conditions   or  other
circumstances  are  more  likely  to  lead  to a  weakened  capability  to make
principal  and  interest   payments  on  these  bonds  than  is  the  case  for
higher-rated bonds. In addition, the ratings of securities are estimates by the
rating  agencies of the credit quality of the  securities.  The ratings may not
take into account every risk related to whether  interest or principal  will be
repaid on a timely basis.

   Q    What  happens  if the  rating  of a  security  is  downgraded  to below
        investment grade?

   A    We will  determine  whether  it is in the best  interest  of the Fund's
        shareholders to continue to hold the security in the Fund's  portfolio.
        If  downgrades  result in more than 5% of the Fund's  net assets  being
        invested in securities that are less than investment-grade  quality, we
        will take  immediate  action  to reduce  the  Fund's  holdings  in such
        securities  to 5% or less of the Fund's net  assets,  unless  otherwise
        directed by the Board of Trustees.

                                      10
<PAGE>

   Q    May the Fund hold any taxable debt securities?

   A    We may, on a temporary  basis due to market,  economic,  political,  or
        other   conditions,   invest  up  to  100%  of  the  Fund's  assets  in
        high-quality, short-term debt instruments.

   Q    How will the impact of federal  income taxes be minimized on the Fund's
        shareholders?

   A    We intend to use various  techniques  to minimize the impact of federal
        income  taxes  on the  Fund's  shareholders  while  maximizing  capital
        appreciation, including:

        o investing in bonds and similar  instruments that provide income which
          is exempt from federal income tax;
        o investing in blue chip stocks with low dividend yields;
        o selecting blue chip stocks that we expect to hold for relatively long
          periods to  minimize  the cost of trading  and the receipt of capital
          gains;
        o when selling blue chip  stocks,  considering  the sale of stocks with
          the highest tax cost basis to minimize the receipt of capital  gains;
          and
        o offsetting  capital  gains with  capital  losses,  if  available  and
          appropriate.

        Although the Fund seeks to minimize  taxable income and the realization
        of capital gains, the Fund may nevertheless  receive taxable income and
        capital  gains  from time to time.  Additionally,  you may owe taxes on
        realized capital gains, if any, when you redeem your Fund shares.

[CAUTION LIGHT]
CHANGES  IN LAWS.  Actual  or  anticipated  changes  in  federal  tax laws that
restrict or eliminate the  tax-exempt  status of securities of the type held by
the Fund could result in increased price volatility of these securities.  These
changes  in law could also  reduce  the  tax-exempt  securities  available  for
investment  by the Fund.  Changes in law  affecting  the  taxing  and  spending
authority of a municipality that issued a tax-exempt  security held by the Fund
could affect the ability of the  municipality to make payments of principal and
interest on the security.

                                      11
<PAGE>

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He manages the  Tax-Exempt  Bonds  category  based on the common  sense
        premise that our investors value tax-exempt income over taxable capital
        gain  distributions.  When  weighing  his  decision  to  buy or  sell a
        security, he strives to balance the value of the tax-exempt income, the
        credit risk of the issuer, and the price volatility of the bond.

Blue Chip Stocks

   Q    What types of equity securities are included in the Fund's portfolio?

   A    We will invest in equity  securities  (common or  preferred  stocks) or
        securities  convertible  into equity  securities for long-term  growth.
        These  equity  securities  must satisfy our  definition  of a blue chip
        stock. A blue chip stock is an equity  security of a company that has a
        market capitalization of:

        o at least $500 million and is included in the list of  companies  that
          make up the Standard & Poor's 500 Composite  Stock Price Index or the
          Dow Jones Industrial Average; or
        o at least $1 billion.

        We may invest up to 5% of the Fund's  total  assets in blue chip stocks
        of foreign issuers or in American  Depositary  Receipts (ADRs),  Global
        Depositary  Receipts (GDRs), or similar forms of ownership  interest in
        securities  of  foreign  issuers  that are  traded  on U.S.  securities
        exchanges or in U.S. over-the-counter markets.

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

                                      12
<PAGE>

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    Generally, he pursues seasoned companies with large capitalization that
        he  believes  have  favorable  valuations,  growth  prospects,  quality
        management,  and a favorable industry outlook.  He sell stocks when one
        or more of these factors change for the worse.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 25.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee. This fee was computed and paid at one-half of one percent (.50%) of
average  net assets for the fiscal  year ended May 31,  1998.  We also  provide
services  related to selling the Fund's shares and receive no compensation  for
those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

                                      13
<PAGE>

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

ASSET ALLOCATION MANAGER

[PHOTOGRAPH OF PORTFOLIO MANAGER]
JOHN W. SAUNDERS, JR.
John W. Saunders,  Jr., Senior Vice President of Fixed Income Investments since
October 1985, has been asset allocation manager of the Fund since its inception
in January  1989.  He has 29 years  investment  management  experience  and has
worked for us for 28 years. Mr. Saunders earned the Chartered Financial Analyst
(CFA)  designation  in 1976 and is a member of the  Association  for Investment
Management and Research (AIMR) and the San Antonio Financial  Analysts Society,
Inc. (SAFAS). He holds a BS from Portland State University, Oregon.

BLUE CHIP STOCKS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
HARRY W. MILLER
Harry W. Miller,  Senior Vice  President of Equity  Investments  since  October
1987,  has been a  co-manager  of the Fund since  February  1995 and  currently
manages the Blue Chip Stocks category.  He has 41 years  investment  management
experience  and has  worked  for us for 24 years.  Mr.  Miller  earned  the CFA
designation in 1968 and is a member of AIMR and SAFAS. He holds an MBA from the
University of Southern California and a BS from Rider University, New Jersey.

TAX-EXEMPT BONDS AND TAX-EXEMPT MONEY MARKET INSTRUMENTS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
KENNETH E. WILLMANN
Kenneth E. Willmann,  Vice President of Fixed Income Investments since December
1986,  has been a  co-manager  of the Fund  since  January  1989 and  currently
manages  the  Tax-Exempt   Bonds  and  Tax-Exempt   Money  Market   Instruments
categories. He has 24 years investment management experience and has worked for
us for 21 years.  Mr.  Willmann  earned  the CFA  designation  in 1987 and is a
member of AIMR,  SAFAS,  and the  National  Federation  of  Municipal  Analysts
(NFMA). He holds an MBA and a BA from the University of Texas.

                                      14
<PAGE>

USING MUTUAL FUNDS IN AN ASSET ALLOCATION PROGRAM

I. The Idea Behind Asset Allocation

If you have money to invest and hear that stocks may be a good  investment,  is
it a wise  idea to use  your  entire  savings  to buy one  stock?  Most  people
wouldn't -- it would be fortunate if it works,  but this strategy holds a great
deal of risk. Surprising news could be reported tomorrow on your stock, and its
price could soar or plummet.

Careful  investors  understand  this  concept  of risk and  lower  that risk by
diversifying their holdings among a number of securities. That way bad news for
one security may be  counterbalanced  by good news regarding other  securities.
But there is still a question  of risk here.  History  tells us that stocks are
generally more volatile than bonds and that long-term  bonds are generally more
volatile  than  short-term  bonds.  History  also tells us that over many years
investments  having higher risks tend to have higher  returns than  investments
that  carry  lower  risks.  From  these  observations  comes  the idea of asset
allocation.

Asset  allocation is a concept that involves  dividing your money among several
different types of investments -- for example,  stocks,  bonds,  and short-term
investments  such as money market  instruments  -- and keeping that  allocation
until your objectives or the financial markets  significantly  change. That way
you're not pinning all your  financial  success on the  fortunes of one kind of
investment.  Money spread across different  investment  categories can help you
reduce market risk and likely will provide more stability to your total return.

Asset  allocation can work because  different  kinds of  investments  generally
follow  different  up-and-down  cycles.  With a variety of  investments in your
portfolio, some are probably doing well, even when others are struggling.

II. Using Asset Allocation in an Investment Program

Most investors understand the concept of diversification,  but asset allocation
goes beyond  diversifying your portfolio;  it's much more of an active process.
You must evaluate your lifestyle, finances, circumstances, long- and short-term
financial  goals,  and tolerance for investment  risk. Once you have structured
your allocation,  you'll need to review it regularly since your objectives will
change over time. Even though we do not charge sales loads or commissions,  our
sales  representatives  are always  available to assist you in structuring  and
reviewing your investment portfolio.

                                      15
<PAGE>

III. USAA's Series of Asset Strategy Funds

USAA's series of asset allocation funds, our Asset Strategy Funds, are designed
for the long-term  investor and are in line with our investment  philosophy for
investors,  specifically  "buy and hold for the  long-term,"  and "don't try to
time the market." As shown below,  each of USAA's Asset  Strategy Funds has its
own different mix of assets and objectives.

===============================================================================
Fund                   Investment Objective                  Invests In
===============================================================================
Income           Seek high current return, with           Bonds and stocks
Strategy         reduced risk over time, through an
Fund             asset allocation strategy which
                 emphasizes income and gives
                 secondary emphasis to long-term
                 growth of capital.

Growth and Tax   Seek a conservative balance between      Tax exempt bonds and
Strategy Fund    income, the majority of which is tax-    blue chip stocks
                 exempt, and the potential for long-term
                 growth of capital to preserve purchasing
                 power.

Balanced         Seek high total return, with reduced     Stocks and bonds
Strategy         risk over time, through an asset
Fund             allocation strategy that seeks a
                 combination of long-term growth of
                 capital and current income.

Cornerstone      Achieve a positive inflation-adjusted    Foreign & basic value
Strategy         rate of return and a reasonably stable   stocks, government
Fund             value of Fund shares, thereby            securities, real
                 preserving purchasing power of           estate stocks, and
                 shareholders' capital.                   gold stocks

Growth           Seek high total return, with reduced     Small & large cap
Strategy         risk over time, through an asset         stocks, bonds, and
Fund             allocation strategy which emphasizes     international stocks
                 capital appreciation and gives
                 secondary emphasis to income.
===============================================================================

For more  complete  information  about the other  USAA  Asset  Strategy  Funds,
including  charges and expenses,  call us for a  Prospectus.  Read it carefully
before you invest or send money.

                                      16
<PAGE>

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000 or no initial  investment  if you elect to have  monthly  electronic
    investments of at least $50 each. We may  periodically  offer programs that
    reduce the minimum amounts for monthly electronic investments. Employees of
    USAA and its  affiliated  companies  may open an  account  through  payroll
    deduction for as little as $25 per pay period with no initial investment.

ADDITIONAL PURCHASES

o   $50

NOTE:  This Fund is not available for an IRA because the majority of its income
is tax-exempt.

                                      17
<PAGE>

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Growth and Tax Strategy Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

                                      18
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

                                      19
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate form and the shares to be acquired

                                      20
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 19.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

                                      21
<PAGE>

Dividends and Distributions

The Fund pays net investment income dividends  quarterly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares. A portion of these
dividends may qualify for the 70%  dividends  received  deduction  available to
corporations.

Regardless  of the length of time you have held the Fund shares,  distributions
of net long-term  capital gains are taxable as long-term  capital gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

Distributions to shareholders  derived from tax-exempt interest received by the
Fund will be excluded from a shareholder's  gross income for federal income tax
purposes, provided the Fund meets certain requirements.

IN CERTAIN INSTANCES, TAX-EXEMPT INTEREST HAS TAX IMPLICATIONS.

For corporations, all tax-exempt interest will be considered in calculating the
alternative minimum tax as part of the adjusted current earnings.

                                      22
<PAGE>

Distributions of tax-exempt income are considered in computing the portion,  if
any, of Social  Security and railroad  retirement  benefits  subject to federal
and, in some cases, state taxes.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of  dividends  and  distributions  for federal  income tax  purposes  annually,
including  the  portion  of the  dividends  constituting  interest  on  private
activity bonds; and the percentage and source,  on a  state-by-state  basis, of
interest income earned on the tax-exempt  securities,  if any, held by the Fund
during the preceding year.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      23
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                   YEAR ENDED MAY 31,            EIGHT-MONTH
                                   ------------------            PERIOD ENDED
                         1998       1997       1996       1995   MAY 31, 1994
                         ----       ----       ----       ----   ------------
Net asset value at
  beginning of period  $  15.14   $ 14.11    $  12.82   $  12.32   $  13.00
Net investment income       .50       .52         .51        .49        .29
Net realized and
  unrealized gain (loss)   1.72      1.39        1.32        .76       (.27)
Distributions from net
  investment income        (.51)     (.52)       (.51)      (.48)      (.33)
Distributions of realized
  capital gains            (.54)     (.36)       (.03)      (.27)      (.37)
Net asset value at
  end of period        $  16.31   $  15.14   $  14.11   $  12.82   $  12.32
Total return (%)*         15.26      14.21      14.61      10.73        .13
Net assets at end of
  period (000)         $229,404   $185,504   $160,390   $134,538   $128,077
Ratio of expenses to
  average net assets (%)    .71        .74        .82        .80        .84(a)
Ratio of net investment
  income to average net
  assets (%)               3.22       3.66       3.79       4.02       3.56(a)
Portfolio turnover (%)    65.58(b)  194.21(b)  202.55(b)  265.52(b)  171.35(b)
- -----------------

    *  Assumes  reinvestment   of  all   dividend   income  and  capital   gain
       distributions during the period.
  (a)  Annualized.  The  ratio is  not  necessarily  indicative of 12 months of
       operations.
  (b)  At  times,  the Fund  has  simultaneously  purchased  and  sold the same
       securities.  These transactions  sometimes  were high in volume and were
       dissimilar   to  other  trade   activity  within   the  Fund.  If  these
       transactions were excluded  from the calculation, the portfolio turnover
       rate would have been:

                                   YEAR ENDED MAY 31,              EIGHT-MONTH
                                   ------------------              PERIOD ENDED
                        1998       1997        1996        1995    MAY 31, 1994
                        ----       ----        ----        ----    ------------
Portfolio turnover (%)   31.58      52.97       61.98      131.28        93.56

Purchases and sales of this type are as follows:

Purchases (000)        $68,958   $220,402    $192,239    $234,367      $98,639
Sales (000)            $69,044   $220,683    $192,490    $234,669      $98,761

                                      24
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

PUT BONDS

We may invest the Fund's assets in tax-exempt  securities (including securities
with variable  interest  rates) which may be redeemed or sold back (put) to the
issuer of the security or a third party prior to stated maturity (put bonds).

o   Such securities will normally trade as if maturity is the earlier put date,
    even  though  stated  maturity  is  longer.   Under  the  Fund's  portfolio
    allocation  procedure,  maturity  for put bonds is deemed to be the date on
    which the put becomes exercisable.

ZERO COUPON BONDS

We may invest the Fund's assets in zero coupon bonds.

o   A zero coupon bond is a security  that is sold at a deep  discount from its
    face value,  makes no periodic interest  payments,  and is redeemed at face
    value when it matures.
o   The lump sum payment at maturity increases the price volatility of the zero
    coupon  bond to changes in  interest  rates  when  compared  to a bond that
    distributes a semiannual coupon payment.
o   In  calculating  its  dividend,  the  Fund  records  as  income  the  daily
    amortization of the purchase discount.

                                      25
<PAGE>

MUNICIPAL LEASE OBLIGATIONS

We may invest the Fund's assets in a variety of instruments  commonly  referred
to as municipal lease obligations, including:

o   Leases,
o   Installment purchase contracts, and
o   Certificates of participation in such leases and contracts.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      26
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds
The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      27
<PAGE>

If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019
<PAGE>
                                     Part A

                               Prospectus for the

                             Balanced Strategy Fund

                               is included herein
<PAGE>
                                 USAA BALANCED
                                 STRATEGY FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment in This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 6
Fund Management.................................................12
Using Mutual Funds in an Asset Allocation Program...............13
How to Invest...................................................16
Important Information About Purchases and Redemptions...........19
Exchanges.......................................................19
Shareholder Information.........................................20
Financial Highlights............................................23
Appendix A .....................................................24
Appendix B .....................................................27

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's investment objective is to seek high total return, with reduced risk
over time,  through an asset  allocation  strategy that seeks a combination  of
long-term growth of capital and current income. Using pre-set target ranges, we
will invest the Fund's  assets in a  combination  of stocks on the one hand and
bonds and money market instruments on the other.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risks of investing in this Fund are market risk,  credit risk,  and
interest rate risk.

o   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities  will  decline due to falls in the stock  market,  reducing  the
    value of individual company's stocks,  regardless of the success or failure
    of an individual company's operations.

o   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline due to an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

Other risks of the Fund described later in the prospectus  include  rebalancing
risk, the risks of foreign investing, and the risks of investing in real estate
investment  trusts  (REITs).  As with other  mutual  funds,  losing money is an
additional risk associated with investing in this Fund.

                                       2
<PAGE>

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are seeking a fund that will  diversify your holdings among a number of
    stocks and bonds.
|X| You are willing to accept moderate risk.
|X| You are looking for current income.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of five years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase  or  decrease.  The bar chart shown on the next page  illustrates  the
Fund's volatility and performance from year to year over the life of the Fund.

                                       3
<PAGE>
TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1995*               3.24
     1996               13.45
     1997               19.05

     *FUND BEGAN OPERATIONS ON SEPTEMBER 1, 1995.

     THE BALANCED  STRATEGY FUND'S TOTAL RETURN FOR THE SIX-MONTH  PERIOD ENDED
     JUNE 30, 1998, WAS 6.33%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 9.80%  (quarter  ending June 30,  1997) and the lowest total return
for a quarter was .65% (quarter ending December 31, 1997).

The table below shows how the Fund's  average  annual  returns for the one-year
period and the life of the Fund compared to those of a  broad-based  securities
market index.  Remember,  historical  performance does not necessarily indicate
what will happen in the future.

===============================================================================
  Average Annual Total Returns                          Since Fund's
  (for the period ending              Past              Inception on
  December 31, 1997)                 1 Year          September 1, 1995
===============================================================================
  Balanced Strategy Fund             19.05%                 15.23%
- -------------------------------------------------------------------------------
  S&P 500 Index*                     33.35%                 29.00%
===============================================================================
  * THE  S&P  500  INDEX  IS  A  BROAD-BASED  COMPOSITE  UNMANAGED  INDEX  THAT
    REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500  WIDELY-HELD,
    PUBLICLY-TRADED STOCKS.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 4 7 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market conditions during the reported time

                                       4
<PAGE>

periods.  Again,  you  must  remember  that  historical  performance  does  not
necessarily  indicate what will happen in the future.  The value of your shares
may go up or down. For the most current price and return  information  for this
Fund, you may call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund
Menu, press 1 again for prices and returns.  Then, press 47# when asked for the
Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                    BalStra

                                     TICKER
                                     SYMBOL
                                     USBSX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "BalStra." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "USBSX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses before waivers,
if any, during the past fiscal year ended May 31, 1998, and are calculated as a
percentage of average net assets (ANA).

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

       Management Fees                            .75%
       Distribution (12b-1) Fees                  None
       Other Expenses                             .56%
                                                 -----
       Total Annual Fund Operating Expenses*     1.31%
                                                 =====
- ---------------

   * During the year, we  voluntarily  limited the Total Annual Fund  Operating
     Expenses to 1.25% as follows:

         Total Annual Fund Operating Expenses      1.31%
         Reimbursement from USAA Investment
           Management Company                      (.06%)
                                                   -----
         Actual Fund Operating Expenses
           After Reimbursement                     1.25%
                                                   =====

                                       5
<PAGE>

     We have voluntarily agreed to limit the Fund's annual expenses to 1.25% of
     its ANA and will  reimburse  the Fund for all  expenses  in excess of that
     amount until October 1, 1999.

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
(before any applicable  reimbursement)  remain the same, and (3) you redeem all
of your shares at the end of the periods shown.

                       1 year ......... $  133
                       3 years........     415
                       5 years........     718
                      10 years........   1,579

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's  principal  investment  strategy is to provide a diversified
        investment  program  within one mutual  fund by  allocating  the Fund's
        assets in each of the following investment  categories according to the
        following targeted ranges. Securities are classified by category at the
        time of purchase.

        [PIE CHART]
                                          PERCENTAGE TARGET RANGE OF NET ASSETS
        INVESTMENT CATEGORY
          STOCKS                                           50-70%
          BONDS                                            30-50%
          MONEY MARKET INSTRUMENTS                          0-10%

The ranges allow for a variance within each investment  category.  The Board of
Trustees  may revise the target  ranges upon 60 days' prior  written  notice to
shareholders.  However,  we may go outside the ranges on a temporary  defensive
basis without  shareholder  notification  whenever we believe it is in the best
interest of the Fund and its shareholders.

                                       6
<PAGE>

   Q    Why are stocks and bonds mixed in the same Fund?

   A    From  time  to  time  the  stock  and  bond   markets   may   fluctuate
        independently  of each other.  In other  words,  a decline in the stock
        market  may,  in  certain  instances,  be  offset by a rise in the bond
        market,  or vice versa.  As a result,  the Fund, with its mix of stocks
        and bonds,  is expected in the long run to entail less market risk (and
        potentially  less return) than a mutual fund  investing  exclusively in
        stocks.

   Q    How are the investment categories and target ranges selected?

   A    The  investment  categories  and the target  ranges  were  selected  to
        provide  investors  with a  diversified  investment  in a single mutual
        fund.  Stocks provide the potential for long-term  capital growth while
        bonds provide a high current return. Money market instruments provide a
        means for temporary  investment of cash balances  arising in the normal
        course of business.

        However, as a temporary defensive measure because of market,  economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    What actions are taken to keep the Fund's asset allocations  within the
        target ranges?

   A    If market  action  causes the actual  assets of the Fund in one or more
        investment  categories  to  move  outside  the  ranges,  we  will  make
        adjustments to rebalance the portfolio.  In general,  we will rebalance
        the portfolio at least once during each  quarter.  In  rebalancing  the
        Fund's  portfolio,  we will buy or sell securities to return the actual
        allocation  of the  Fund's  assets to within  its  target  ranges.  For
        example,  the Fund's  portfolio  could begin a quarter  with its assets
        allocated  65%  in  stocks,  30%  in  bonds,  and  5% in  money  market
        instruments.  During the  quarter,  due to market  returns,  the Fund's
        portfolio  could  hold 75% in  stocks,  20% in  bonds,  and 5% in money
        market  instruments.  In this case,  we would  sell  stocks and use the
        proceeds  to buy bonds to bring  the  stocks  and bonds  back to within
        their target ranges.

[CAUTION LIGHT]
REBALANCING  RISKS. In purchasing and selling  securities in order to rebalance
its portfolio,  the Fund will pay more in brokerage  commissions  than it would
without a rebalancing policy. As a result of the need to

                                       7
<PAGE>

rebalance,  the Fund also has less  flexibility  in the timing of purchases and
sales of securities than it would otherwise.  While we will attempt to minimize
any adverse impact to the Fund or its shareholders,  the Fund may have a higher
proportion of capital gains and a lower return than a fund that does not have a
rebalancing policy.

Stocks

   Q    What types of stocks are included in the Fund's portfolio?

   A    The stocks in the Fund's portfolio will consist primarily of any of the
        following securities:

        o common  stocks,   securities   convertible  into  common  stocks,  or
          securities which carry the right to buy common stocks (referred to as
          "equity securities");

        o foreign  securities  purchased in foreign or U.S. markets,  including
          American  Depositary  Receipts (ADRs) and Global Depositary  Receipts
          (GDRs); and

        o real estate investment trusts (REITs).

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

[CAUTION LIGHT]
FOREIGN INVESTING. Investing in foreign securities poses unique risks: currency
exchange  rate  fluctuations;   foreign  market  illiquidity;  increased  price
volatility;  exchange control regulations;  foreign ownership limits; different
accounting,   reporting,  and  disclosure  requirements;  and  difficulties  in
obtaining legal judgments.  In the past, equity and debt instruments of foreign
markets  have been more  volatile  than  equity  and debt  instruments  of U.S.
securities markets.

[CAUTION LIGHT]
REITS.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated  with the direct  ownership of real estate.  In addition,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.

                                       8
<PAGE>

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    In selecting stocks for the Fund, he generally follows a value-oriented
        strategy in managing  the equity  portion of the Fund.  He  appraises a
        stock's price in relation to the company's  earnings,  cash flow,  book
        value, and yield. He also considers various qualitative factors such as
        the number of shares the  company's  management  owns,  the attitude of
        investors in general toward the company, and the quality of management.

        He uses the same criteria in deciding  which  securities  to sell.  For
        example,  when a  company's  shares  sell  well  above  their  relative
        historical levels, he may decide to sell the stock.  Occasionally,  his
        decisions  to sell are  based on the  need for cash to  purchase  other
        stock.

Bonds and Money Market Instruments

   Q    What types of bonds are included in the Fund's portfolio?

   A    We will invest in bonds that have been  selected  for their high yields
        in relation to the risk involved.  These  securities must be investment
        grade at the time of purchase and may include any of the following:

        o obligations   of   the   U.S.   Government,    its   agencies,    and
          instrumentalities;
        o mortgage-backed securities;
        o asset-backed securities;
        o corporate debt securities, such as notes and bonds;
        o debt securities of real estate investment trusts;
        o obligations  of state and local  governments  and their  agencies and
          instrumentalities;
        o master demand notes;
        o Eurodollar obligations;
        o Yankee obligations; and
        o other debt securities.

        Further  description of these securities is found in APPENDIX A on page
        24.

                                       9
<PAGE>

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What are considered investment-grade securities?

   A    Investment-grade  securities include securities issued or guaranteed by
        the U.S. Government,  its agencies, and  instrumentalities,  as well as
        securities  rated within the categories  listed by the following rating
        agencies:

===============================================================================
                                LONG-TERM            SHORT-TERM
         RATING AGENCY          DEBT SECURITIES      DEBT SECURITIES
===============================================================================
         Moody's Investors      At least Baa         At least Prime-3 or
             Services Inc.                           MIG 4/VMIG 4
- -------------------------------------------------------------------------------
         Standard & Poor's      At least BBB         At least A-3 or
             Ratings Group                           SP-2
- -------------------------------------------------------------------------------
         Fitch IBCA, Inc.       At least BBB         At least F-3
- -------------------------------------------------------------------------------
         Duff and Phelps        At least BBB         At least D-3
===============================================================================

        or  if  unrated  by  these  agencies,  we  must  determine  that  these
        securities are of equivalent investment quality.

        You will find a complete  description  of the above debt ratings in the
        Fund's Statement of Additional Information.

[CAUTION LIGHT]
CREDIT  RISK.  The bonds in the Fund's  portfolio  are subject to credit  risk.
Credit  risk is the  possibility  that an  issuer  of a bond  will fail to make
timely  payments of interest or  principal.  We attempt to minimize  the Fund's
credit risk by investing in securities  considered investment grade at the time
of purchase.  When evaluating potential  investments for the Fund, our analysts
also assess credit risk and its impact on the Fund's  portfolio.  Nevertheless,
even investment-grade  securities are subject to some credit risk. Bonds in the
lowest-rated  investment  grade  category  have  speculative   characteristics.
Changes in economic  conditions or other  circumstances are more likely to lead
to a weakened capability to make principal and interest payments on

                                      10
<PAGE>

these bonds than is the case for higher-rated  bonds. In addition,  the ratings
of securities are estimates by the rating agencies of the credit quality of the
securities. The ratings may not take into account every risk related to whether
interest or principal will be repaid on a timely basis.

   Q    What happens if the rating of a security is downgraded below investment
        grade?

   A    We will  determine  whether  it is in the best  interest  of the Fund's
        shareholders to continue to hold the security in the Fund's  portfolio.
        If  downgrades  result in more than 5% of the Fund's  net assets  being
        invested in securities that are less than investment-grade  quality, we
        will take  immediate  action  to reduce  the  Fund's  holdings  in such
        securities  to 5% or less of the Fund's net  assets,  unless  otherwise
        directed by the Board of Trustees.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He  searches  for  securities  that  represent  value at the time given
        current  market  conditions.  Value is a combination  of yield,  credit
        quality,   structure  (maturity,   coupon,   redemption  features)  and
        liquidity.  Recognizing value is the result of simultaneously analyzing
        the interaction of these factors among the securities  available in the
        market.

   Q    What  types of money  market  instruments  are  included  in the Fund's
        portfolio?

   A    The money  market  instruments  included in the Fund's  portfolio  will
        consist of high-quality,  U.S. dollar  denominated debt securities that
        have  remaining  maturities of one year or less.  They may carry either
        fixed or variable interest rates and may include any of the following:

        o obligations of the U.S. Government;
        o commercial paper, or other short-term corporate obligations;
        o repurchase agreements collateralized with U.S. Government securities;
        o certificates of deposit;
        o bankers' acceptances; and
        o other financial institution obligations.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 24.

                                      11
<PAGE>

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee. The fee, three-fourths of one percent (.75%) of average net assets,
is accrued daily and paid  monthly.  The fee received for the fiscal year ended
May 31, 1998, net of  reimbursements,  was equal to .68% of average net assets.
We also provide  services  related to selling the Fund's  shares and receive no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

STOCKS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
R. DAVID ULLOM
R. David Ullom,  Assistant Vice President of Equity Investments since September
1994, is the asset  allocation  manager for the Fund and has managed the Stocks
investment  category  since its  inception in September  1995.  He has 23 years
investment  management experience and has worked for us for 12 years. Mr. Ullom
earned the  Chartered  Financial  Analyst  (CFA)  designation  in 1980 and is a
member of the Association for Investment Management and Research (AIMR) and the
San Antonio  Financial  Analysts Society,  Inc.  (SAFAS).  He holds an MBA from
Washington University, Missouri, and a BS from Oklahoma State University.

                                      12
<PAGE>

BONDS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAUL H. LUNDMARK
Paul H. Lundmark,  Assistant Vice President of Fixed Income  Investments  since
December 1996, has managed the Bonds investment  category since September 1995.
He has 12 years investment  management experience and has worked for us for six
years.  Mr. Lundmark earned the CFA designation in 1989 and is a member of AIMR
and SAFAS. He holds an MBA and BSB from the University of Minnesota.

MONEY MARKET INSTRUMENTS

[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAMELA K. BLEDSOE
Pamela K. Bledsoe,  Assistant  Vice  President of Money Market Funds since July
1998, has managed the Money Market Instruments category since May 1996. She has
ten years  investment  management  experience  and has  worked for us for seven
years.  Ms. Bledsoe earned the CFA  designation in 1992 and is a member of AIMR
and  SAFAS.  She holds an MBA from  Texas  Christian  University  and a BS from
Louisiana Tech University.

USING MUTUAL FUNDS IN AN ASSET ALLOCATION PROGRAM

I. The Idea Behind Asset Allocation

If you have money to invest and hear that stocks may be a good  investment,  is
it a wise  idea to use  your  entire  savings  to buy one  stock?  Most  people
wouldn't -- it would be fortunate if it works,  but this strategy holds a great
deal of risk. Surprising news could be reported tomorrow on your stock, and its
price could soar or plummet.

Careful  investors  understand  this  concept  of risk and  lower  that risk by
diversifying their holdings among a number of securities. That way bad news for
one security may be  counterbalanced  by good news regarding other  securities.
But there is still a question  of risk here.  History  tells us that stocks are
generally more volatile than bonds and that long-term  bonds are generally more
volatile  than  short-term  bonds.  History  also tells us that over many years
investments  having higher risks tend to have higher  returns than  investments
that  carry  lower  risks.  From  these  observations  comes  the idea of asset
allocation.

                                      13
<PAGE>

Asset  allocation is a concept that involves  dividing your money among several
different types of investments -- for example,  stocks,  bonds,  and short-term
investments  such as money market  instruments  -- and keeping that  allocation
until your objectives or the financial markets  significantly  change. That way
you're not pinning all your  financial  success on the  fortunes of one kind of
investment.  Money spread across different  investment  categories can help you
reduce market risk and likely will provide more stability to your total return.

Asset  allocation can work because  different  kinds of  investments  generally
follow  different  up-and-down  cycles.  With a variety of  investments in your
portfolio, some are probably doing well, even when others are struggling.

II. Using Asset Allocation in an Investment Program

Most investors understand the concept of diversification,  but asset allocation
goes beyond  diversifying your portfolio;  it's much more of an active process.
You must evaluate your lifestyle, finances, circumstances, long- and short-term
financial  goals,  and tolerance for investment  risk. Once you have structured
your allocation,  you'll need to review it regularly since your objectives will
change over time. Even though we do not charge sales loads or commissions,  our
sales  representatives  are always  available to assist you in structuring  and
reviewing your investment portfolio.

III. USAA's Series of Asset Strategy Funds

USAA's series of asset allocation funds, our Asset Strategy Funds, are designed
for the long-term  investor and are in line with our investment  philosophy for
investors,  specifically  "buy and hold for the  long-term,"  and "don't try to
time the  market."  As shown on the next page,  each of USAA's  Asset  Strategy
Funds has its own different mix of assets and objectives.

                                      14
<PAGE>

===============================================================================
Fund                   Investment Objective                  Invests In
===============================================================================
Income           Seek high current return, with           Bonds and stocks
Strategy         reduced risk over time, through an
Fund             asset allocation strategy which
                 emphasizes income and gives
                 secondary emphasis to long-term
                 growth of capital.

Growth and Tax   Seek a conservative balance between      Tax exempt bonds and
Strategy Fund    income, the majority of which is tax-    blue chip stocks
                 exempt, and the potential for long-term
                 growth of capital to preserve purchasing
                 power.

Balanced         Seek high total return, with reduced     Stocks and bonds
Strategy         risk over time, through an asset
Fund             allocation strategy that seeks a
                 combination of long-term growth of
                 capital and current income.

Cornerstone      Achieve a positive inflation-adjusted    Foreign & basic value
Strategy         rate of return and a reasonably stable   stocks, government
Fund             value of Fund shares, thereby            securities, real
                 preserving purchasing power of           estate stocks, and
                 shareholders' capital.                   gold stocks

Growth           Seek high total return, with reduced     Small & large cap
Strategy         risk over time, through an asset         stocks, bonds, and
Fund             allocation strategy which emphasizes     international stocks
                 capital appreciation and gives
                 secondary emphasis to income.
===============================================================================

For more  complete  information  about the other  USAA  Asset  Strategy  Funds,
including  charges and expenses,  call us for a  Prospectus.  Read it carefully
before you invest or send money.

                                      15
<PAGE>

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000 [$500 Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and
    $250 for  IRAs]  or no  initial  investment  if you  elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

                                      16
<PAGE>

HOW TO PURCHASE

MAIL

[ENVELOP GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Balanced Strategy Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

                                      17
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

                                      18
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired

                                      19
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 17.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general supervision of

                                      20
<PAGE>

the  Board  of  Trustees,  will  use all  relevant,  available  information  to
determine a fair value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net investment income dividends  quarterly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term capital gains are taxable to shareholders as

                                      21
<PAGE>

ordinary income, whether received in cash or reinvested in additional shares. A
portion of these dividends may qualify for the 70% dividends received deduction
available to corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      22
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total returns in the table  represent the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.

                                 YEAR ENDED MAY 31,       NINE-MONTH
                                 ------------------      PERIOD ENDED
                                 1998         1997       MAY 31,1996*
                                 ----         ----       ------------

Net asset value at
  beginning of period         $   12.11    $   10.49      $   10.00
Net investment income               .35          .33            .26(b)
Net realized and
  unrealized gain                  1.64         1.65            .37
Distributions from net
  investment income                (.35)        (.33)          (.14)
Distributions of realized
  capital gains                    (.29)        (.03)           -
                              ---------    ---------      ---------
Net asset value at
  end of period               $   13.46    $   12.11      $   10.49
                              =========    =========      =========
Total return (%)**                16.82        19.26           6.37
Net assets at end of
  period (000)                $  70,046    $  34,601      $  19,258
Ratio of expenses to
  average net assets (%)           1.25         1.25           1.25(a)
Ratio of expenses
  to average net
  assets excluding
  reimbursements (%)               1.31         1.39           2.00(a)
Ratio of net investment
  income to average net
  assets (%)                       2.85         3.16           3.31(a)
Portfolio turnover (%)            22.18        28.06          26.53
- -----------------
 *  Fund commenced operations September 1, 1995.
 ** Assumes reinvestment of all dividend income  and capital gain distributions
    during the period.
(a) Annualized.  The  ratio is  not  necessarily  indicative  of 12  months  of
    operations.
(b) Calculated using weighted average shares.

                                      23
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

                                      24
<PAGE>

PUT BONDS

We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated maturity (put bonds).

o   Such securities will normally trade as if maturity is the earlier put date,
    even  though  stated  maturity  is  longer.   Under  the  Fund's  portfolio
    allocation  procedure,  maturity  for put bonds is deemed to be the date on
    which the put becomes exercisable.

MUNICIPAL LEASE OBLIGATIONS

We may invest the Fund's assets in a variety of instruments  commonly  referred
to as municipal lease obligations, including:

o   Leases,
o   Installment purchase contracts, and
o   Certificates of participation in such leases and contracts.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES

We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation  (Freddie Mac). These securities  represent  ownership in a pool of
mortgage loans. They differ from  conventional  bonds in that principal is paid
back to the  investor as payments are made on the  underlying  mortgages in the
pool.  Accordingly,  the Fund receives monthly scheduled  payments of principal
and interest along with any unscheduled principal prepayments on the underlying
mortgages.  Because these scheduled and unscheduled  principal payments must be
reinvested  at prevailing  interest  rates,  mortgage-backed  securities do not
provide  an  effective  means of locking in  long-term  interest  rates for the
investor.  Like other fixed income  securities,  when interest  rates rise, the
value of a  mortgage-backed  security  generally  will decline;  however,  when
interest  rates are declining,  the value of  mortgage-backed  securities  with
prepayment features may not increase as much as other fixed income securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely

                                      25
<PAGE>

to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending  arrangements  between  the  lender  and  borrower,  these  instruments
generally will not be traded,  and there  generally is no secondary  market for
these notes,  although they are redeemable  (and  immediately  repayable by the
borrower) at face value, plus accrued interest, at any time. We will invest the
Fund's  assets in master  demand  notes  only if the Board of  Trustees  or its
delegate has determined that they are of credit quality  comparable to the debt
securities in which the Fund generally may invest.

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      26
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      27
<PAGE>

If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                           Cornerstone Strategy Fund

                               is included herein
<PAGE>
                                USAA CORNERSTONE
                                 STRATEGY FUND

                                   Prospectus
                                October 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment In This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 6
Fund Management.................................................13
Using Mutual Funds in an Asset Allocation Program...............15
How to Invest...................................................18
Important Information About Purchases and Redemptions...........21
Exchanges.......................................................21
Shareholder Information.........................................22
Financial Highlights............................................25
Appendix A .....................................................26
Appendix B .....................................................28

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's  investment  objective is to achieve a positive,  inflation-adjusted
rate of return and a reasonably stable value of Fund shares, thereby preserving
purchasing power of shareholders' capital. Using pre-set target ranges, we will
invest the Fund's assets mostly in stocks, divided into the categories of basic
value,  foreign,  real estate,  and gold stocks, and to a much lesser extent in
U.S. Government securities.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing in this Fund are market  risk,  interest  rate
risk,  and the  unique  risks of  investing  in  foreign  stocks,  real  estate
investment trusts (REITs), and gold mining companies.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments in U.S.  Government  securities will decline due to an increase
    in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

o   REIT RISK involves the  possibility  that the Fund's  investments  in REITs
    will decrease due to a decline in real estate values.

                                       2
<PAGE>

o   GOLD MINING RISK involves the risk that the value of the Fund's investments
    in gold mining stocks will decrease due to a decrease in the value of gold.

Other risks of the Fund described later in the prospectus  include  rebalancing
risk. As with other mutual funds, losing money is an additional risk associated
with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are  seeking a fund  that will  diversify  your  holdings  among a wide
    variety of investment categories.
|X| You are willing to accept moderate risk.
|X| You are willing to take some exposure to the stock market.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You need steady income.
|X| You are unable or reluctant to invest for a period of five years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase  or  decrease.  The bar chart shown on the next page  illustrates  the
Fund's volatility and performance from year to year for the past ten years.

                                       3
<PAGE>

TOTAL RETURN
All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1988                8.38
     1989               21.94
     1990               -9.20
     1991               16.23
     1992                6.35
     1993               23.73
     1994               -1.05
     1995               18.40
     1996               17.87
     1997               15.64

    THE CORNERSTONE STRATEGY FUND'S TOTAL RETURN FOR THE SIX-MONTH PERIOD ENDED
    JUNE 30, 1998, WAS 5.92%.

During the ten-year period shown in the bar chart, the highest total return for
a quarter  was 10.06%  (quarter  ending  March 31,  1993) and the lowest  total
return for a quarter was -7.08% (quarter ending September 30, 1990).

The table  below  shows how the Fund's  average  annual  returns  for the one-,
five-,  and  ten-year  periods and the life of the Fund  compared to those of a
broad-based securities market index. Remember,  historical performance does not
necessarily indicate what will happen in the future.

===============================================================================
 Average Annual Total Returns
 (for the period ending        Past       Past        Past         Life of
 December 31, 1997)           1 Year     5 Years     10 Years        Fund
===============================================================================
 Cornerstone Strategy Fund    15.64%     14.59%       11.35%        12.96%
- -------------------------------------------------------------------------------
 S&P 500 Index*               33.35%     20.25%       18.02%        18.10%
===============================================================================
  * THE  S&P  500  INDEX  IS  A  BROAD-BASED  COMPOSITE  UNMANAGED  INDEX  THAT
    REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500  WIDELY-HELD,
    PUBLICLY-TRADED STOCKS.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 1 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLine(R) at 1-800-531-8777. Press 1 for the

                                       4
<PAGE>

Mutual Fund Menu,  press 1 again for prices and returns.  Then,  press 51# when
asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                    CrnstStr

                                     TICKER
                                     SYMBOL
                                     USCRX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol "CrnstStr." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "USCRX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

       Management Fees                            .75%
       Distribution (12b-1) Fees                  None
       Other Expenses                             .26%
                                                 -----
       Total Annual Fund Operating Expenses      1.01%
                                                 =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                 1 year........... $  103
                 3 years..........    322
                 5 years..........    558
                10 years..........  1,236

                                       5
<PAGE>

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's  principal  investment  strategy is to provide a diversified
        investment  program  within one mutual  fund by  allocating  the Fund's
        assets in each of the following investment  categories according to the
        following targeted ranges. Securities are classified by category at the
        time of purchase.

        [PIE CHART]
                                          PERCENTAGE TARGET RANGE OF NET ASSETS
        INVESTMENT CATEGORY
          BASIC VALUE STOCKS                               22-28%
          U.S. GOVERNMENT SECURITIES                       22-28%
          FOREIGN STOCKS                                   22-28%
          REAL ESTATE STOCKS                               22-28%
          GOLD STOCKS                                       0-10%

The ranges allow for a variance within each investment  category.  The Board of
Trustees  may revise the target  ranges upon 60 days' prior  written  notice to
shareholders.  However,  we may go outside the ranges on a temporary  defensive
basis without  shareholder  notification  whenever we believe it is in the best
interest of the Fund and its shareholders.

   Q    Why are stocks and bonds mixed in the same Fund?

   A    From  time  to  time  the  stock  and  bond   markets   may   fluctuate
        independently  of each other.  In other  words,  a decline in the stock
        market  may,  in  certain  instances,  be  offset by a rise in the bond
        market,  or vice versa.  As a result,  the Fund, with its mix of stocks
        and bonds,  is expected in the long run to entail less market risk (and
        potentially  less return) than a mutual fund  investing  exclusively in
        stocks.

   Q    How are the investment categories and target ranges selected?

   A    The  investment  categories  and the target  ranges  were  selected  to
        provide  investors  with a  diversified  investment  in a single mutual
        fund. The Basic Value Stocks category was selected to provide

                                       6
<PAGE>

        appreciation during rising stock market conditions and to stabilize the
        value of the Fund during adverse market conditions. The U.S. Government
        Securities  category  was  selected to provide  safety of  principal in
        periods of  deflation.  The Foreign  Stocks  category  was  selected to
        provide  the  potential  for  appreciation  during  periods  of adverse
        economic and market  conditions in the United  States.  The Real Estate
        and Gold Stocks  categories  were selected to provide a positive  total
        return during inflationary periods.

        However, as a temporary defensive measure because of market,  economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    What actions are taken to keep the Fund's asset allocations  within the
        target ranges?

   A    If market  action  causes the actual  assets of the Fund in one or more
        investment  categories  to  move  outside  the  ranges,  we  will  make
        adjustments to rebalance the portfolio.  In general,  we will rebalance
        the portfolio at least once during each  quarter.  In  rebalancing  the
        Fund's  portfolio,  we will buy or sell securities to return the actual
        allocation  of the  Fund's  assets to within  its  target  ranges.  For
        example,  the Fund's  portfolio  could begin a quarter  with its assets
        allocated  25% in the  Basic  Value  Stocks  category,  25% in the U.S.
        Government Securities category, 22% in the Foreign Stocks category, 22%
        in the Real Estate Stocks category, and 6% in the Gold Stocks category.
        During the  quarter,  a strong  stock  market  coupled with a weak real
        estate  market  could leave the  portfolio  with 30% in the Basic Value
        Stocks category, 25% in the U.S. Government Securities category, 25% in
        the Foreign Stocks  category,  10% in the Real Estate Stocks  category,
        and 10% in the Gold Stocks category.  In this case, we would sell Basic
        Value Stocks and use the proceeds to buy more real estate securities in
        order to bring  the Real  Estate  Stocks  back to within  their  target
        ranges.

[CAUTION LIGHT]
REBALANCING  RISKS. In purchasing and selling  securities in order to rebalance
its portfolio,  the Fund will pay more in brokerage  commissions  than it would
without a rebalancing  policy.  As a result of the need to rebalance,  the Fund
also has less  flexibility  in the timing of purchases  and sales of securities
than it would otherwise. While we attempt to minimize any adverse impact to the
Fund or its shareholders, the Fund may have a higher

                                       7
<PAGE>

proportion of capital gains and a lower return than a fund that does not have a
rebalancing policy.

Basic Value Stocks

   Q    What types of Basic Value Stocks are included in the Fund's portfolio?

   A    The Basic Value Stocks in the Fund's  portfolio  will consist of equity
        securities  of U.S.  companies  which we  believe  are  undervalued  in
        relation  to such  factors  as the  company's  assets  and  current  or
        prospective earnings. In most cases, these securities will be listed on
        the New York Stock Exchange (NYSE). We use the term "equity securities"
        to include common stocks, preferred stocks, securities convertible into
        common  stocks,  and  securities  which  carry the right to buy  common
        stocks.

        The Basic Value Stocks category will include common stocks of companies
        with one or more of the following characteristics when purchased:

        o the price  earnings  ratio is lower than the price  earnings ratio of
          the S&P 500;
        o the price per share is lower than the book value per share;
        o the dividend  yield is higher than the dividend yield of the S&P 500;
          or
        o the company has assets  with a  perceived  market  value in excess of
          book value.

        Loss of these  characteristics  will not necessarily result in the sale
        of securities in this investment category.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in stocks, it is subject to stock market
risk. Stock prices in general may decline over short or even extended  periods,
regardless  of the success or failure of an  individual  company's  operations.
Stock markets tend to run in cycles,  with periods when stock prices  generally
go up, known as "bull"  markets,  and periods  when stock  prices  generally go
down,  referred to as "bear" markets.  Equity securities tend to go up and down
more than bonds.

                                       8
<PAGE>

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    In purchasing  stocks for this category,  he looks for an event that he
        believes will change the financial prospects of the company, which also
        has a favorable  valuation,  prospect in growth earnings in relation to
        the price of the stock,  quality  management,  and a favorable industry
        outlook.  He sells stocks when one or more of these factors  change for
        the worse.

U.S. Government Securities

   Q    What role do U.S Government Securities play in the Fund's portfolio?

   A    The U.S.  Government  Securities  investment  category  is  intended to
        provide both  liquidity and interest  income with limited  credit risk.
        Changes in interest  rates may affect the value of  investments  within
        this  category.  In  periods of rising  interest  rates,  fixed  coupon
        securities  will  generally  decline in market value.  To minimize such
        changes  in value,  we may  shorten  maturities  in  periods  of rising
        interest  rates,  although  there is no assurance that this action will
        totally  protect  principal  from  erosion.  Conversely,  we may extend
        maturities in periods of declining  interest rates to capitalize on the
        resulting impact on principal.

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What types of U.S.  Government  Securities  are  included in the Fund's
        portfolio?

   A    The U.S. Government  Securities in the Fund's portfolio will consist of
        securities, without specific maturity requirements or limits, issued or
        guaranteed as to both  principal  and interest by the U.S.  Government,
        its agencies, or instrumentalities. Examples of these

                                       9
<PAGE>

        securities are U.S.  Treasury  bills,  notes and bonds,  and securities
        issued by the Federal Farm Credit  Banks,  Federal  Home Loan  Mortgage
        Corporation,  Federal  National  Mortgage  Association,  and Government
        National Mortgage Association.

        Additionally,  the Fund may  invest  the  Fund's  assets in  repurchase
        agreements  collateralized  by securities of the U.S.  Government or by
        its agencies or instrumentalities.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He searches  for  securities  which  represent  value at the time given
        current  market  conditions.  Since credit quality is not an issue with
        Government  Securities,  he determines value by weighing current return
        with risk of  principal  due to  potential  changes in interest  rates.
        Generally speaking,  the longer the maturity of a bond, the greater the
        value will change with changes in interest rates, either up or down.

Foreign Stocks

   Q    What role do foreign stocks play in the Fund's portfolio?

   A    From time to time,  the U.S. and foreign  stock  markets may  fluctuate
        independently  of each other.  In other words,  a decline in one market
        may, in certain circumstances, be offset by a rise in the other market.
        In addition,  foreign equity markets may provide attractive returns not
        otherwise available in the U.S. markets.

   Q    What is considered to be a "foreign company?"

   A    A company is a foreign  company if it is organized  under the laws of a
        foreign country;  and it must also have one of the following additional
        characteristics:

        o the principal  trading market for the stock is in a foreign  country;
          or
        o at least 50% of its revenues or profits are derived  from  operations
          within foreign countries; or
        o at least 50% of its assets are located within foreign countries.

   Q    What are the potential  risks  associated  with  investments in foreign
        countries?

   A    Because the Fund's  assets will be  invested in foreign  securities  in
        either foreign or U.S. markets, including American Depositary

                                      10
<PAGE>

        Receipts  (ADRs) and Global  Depositary  Receipts  (GDRs),  the Fund is
        subject to the following risks:

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

        [CAUTION LIGHT]
        FOREIGN INVESTING.  Investing in foreign securities poses unique risks:
        currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
        increased  price  volatility;  exchange  control  regulations;  foreign
        ownership  limits;  different  accounting,  reporting,  and  disclosure
        requirements;  and  difficulties in obtaining legal  judgments.  In the
        past,  equity and debt  instruments  of foreign  markets have been more
        volatile than equity and debt instruments of U.S. securities markets.

        o EMERGING MARKETS RISK. A country that is in the initial stages of its
          industrial  cycle is  considered to be an emerging  markets  country.
          Investments  in  developing  countries  involve  exposure to economic
          structures  that are  generally  less  diverse and mature than in the
          United States and to political  systems which may be less stable.  In
          the past,  markets of  developing  countries  have been more volatile
          than the markets of developed countries.

        o POLITICAL RISK. Political risk includes a greater potential for coups
          d'etat, revolts, and expropriation by governmental organizations. For
          example, we may invest the Fund's assets in Eastern Europe and former
          states  of the  Soviet  Union  (also  known  as the  Commonwealth  of
          Independent  States or CIS).  These  countries  were under  communist
          systems  which  had  nationalized  private  industry.   There  is  no
          guarantee that  nationalization may not occur again in this region or
          others in which we may invest the Fund's  assets,  in which case,  we
          may  lose  all or part of the  Fund's  investment  in that  country's
          issuers.

   Q    How do the portfolio  managers for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    They review countries and regions for economic and political  stability
        as well as future prospects.  Then they research  individual  companies
        looking  for  favorable  valuations,   growth  prospects,   quality  of
        management,  and industry outlook.  Securities are sold if they believe
        they  are   overvalued   or  if  the  economic  or  political   outlook
        significantly deteriorates.

                                      11
<PAGE>

Real Estate Stocks

   Q    What role do real estate stocks play in the Fund's portfolio?

   A    We believe  that  diversified  investments  linked to real estate are a
        good hedge during an inflationary environment.

   Q    What types of real estate stocks are included in the Fund's portfolio?

   A    Investments in this category will consist of equity  securities of real
        estate  investment  trusts (REITs) and U.S.  companies which operate as
        real estate  corporations or which have a significant  portion of their
        assets in real estate.  We will evaluate the nature of a company's real
        estate  holdings  to  determine  whether the Fund's  investment  in the
        company's common stock will be included in this category. The Fund will
        not acquire any direct ownership of real estate.

[CAUTION LIGHT]
REITs.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated  with the direct  ownership of real estate.  In addition,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He looks for  well-managed  and prudently  financed  companies that own
        high quality properties, have the potential to grow per share cash flow
        at an above average rate, and that sell at reasonable valuation levels.

Gold Stocks

   Q    What role do gold stocks play in the Fund's portfolio?

   A    Gold  stocks  have been  selected  for  their  perceived  potential  to
        increase in value during inflationary periods.

   Q    What types of gold stocks are included in the Fund's portfolio?

   A    In this  category,  we will invest at least 80% of the assets in equity
        securities  of  companies  principally  engaged  in  gold  exploration,
        mining, or processing. The remaining investments in this category

                                      12
<PAGE>

        will consist of equity  securities  of companies  similarly  engaged in
        other precious metals and minerals.

[CAUTION LIGHT]
GOLD MINING RISK. Gold mining stocks involve  additional risk because of gold's
price   volatility  and  the  increased  impact  such  volatility  has  on  the
profitability  of gold mining  companies.  However,  since the market action of
such  securities  has tended to move  independently  of the  broader  financial
markets,  the addition of gold mining  stocks to an  investor's  portfolio  may
reduce overall fluctuations in portfolio value.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He looks for well-managed  and prudently  financed  low-cost  producers
        with  good  production  or  reserve  growth   potential  that  sell  at
        reasonable valuations on a risk-adjusted basis.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 26.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average  net assets for the fiscal year ended May 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio. The Board

                                      13
<PAGE>

of Trustees has adopted  procedures to ensure that any commissions paid to USAA
Brokerage Services are reasonable and fair.

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

[PHOTOGRAPH OF PORTFOLIO MANAGERS]
             SEATED L TO R: JOHN W SAUNDERS, JR., HARRY W. MILLER,
            STANDING L TO R: ALBERT C. SEBASTIAN, DAVID G. PEEBLES,
                   W. TRAVIS SELMIER, II, AND MARK W. JOHNSON

Basic Value Stocks

Harry W. Miller,  Senior Vice  President of Equity  Investments  since  October
1987, is the asset  allocation  manager for the Fund. He has been the portfolio
manager for the Basic Value Stocks investment  category since February 1995. He
has 41 years of experience in investment  management  and has worked for us for
24 years. Mr. Miller earned the CFA designation in 1968 and is a member of AIMR
and SAFAS. He holds an MBA from the University of Southern  California and a BS
from Rider University, New Jersey.

U.S. Government Securities

John W. Saunders,  Jr., Senior Vice President of Fixed Income Investments since
October 1985, has managed the U.S.  Government  Securities  investment category
since October 1985. He has 29 years  investment  management  experience and has
worked for us for 28 years. Mr. Saunders earned the Chartered Financial Analyst
(CFA)  designation  in 1976 and is a member of the  Association  for Investment
Management and Research (AIMR) and the San Antonio Financial  Analysts Society,
Inc. (SAFAS). He holds a BS from Portland State University, Oregon.

                                      14
<PAGE>

Foreign Stocks

David G. Peebles, Vice President of Equity Investments since February 1988, has
managed or co-managed  the Foreign  Stocks  investment  category since December
1994. He has 32 years investment management experience and has worked for us 14
years.  Mr. Peebles earned the CFA designation in 1971 and is a member of AIMR,
SAFAS, and the International  Society of Financial Analysts (ISFA). He holds an
MBA and BS from Texas Christian University.

Albert C.  Sebastian and W. Travis  Selmier,  II,  co-manage the Foreign Stocks
investment category with Mr. Peebles. Mr. Peebles coordinates the activities of
the managers.

Albert C.  Sebastian,  Assistant  Vice  President of Equity  Investments  since
September  1996, has co-managed  the Foreign Stocks  investment  category since
October 1996. He has 14 years investment  management  experience and has worked
for us for seven years. Mr. Sebastian earned the CFA designation in 1989 and is
a member of AIMR,  SAFAS,  and  ISFA.  He holds an MBA from the  University  of
Michigan and a BA from Holy Cross College, Massachusetts.

W. Travis Selmier,  II,  Assistant Vice President of Equity  Investments  since
September  1996, has co-managed  the Foreign Stocks  investment  category since
October 1996. He has 11 years investment  management  experience and has worked
for us for seven years. Mr. Selmier earned the CFA designation in 1990 and is a
member of AIMR,  SAFAS,  and ISFA. He holds an MBA from Indiana  University,  a
Certificate of Proficiency from Sophia University  Japanese Language Institute,
Japan, and a BA from the University of California at Santa Barbara.

Gold and Real Estate Stocks

Mark W. Johnson,  Assistant  Vice President of Equity  Investments  since March
1995, has managed the Gold Stocks and Real Estate Stocks investment  categories
since January 1994. He has 24 years  investment  management  experience and has
worked for us for ten years. Mr. Johnson earned the CFA designation in 1978 and
is a member of AIMR and SAFAS. He holds an MBA and a BBA from the University of
Michigan.

USING MUTUAL FUNDS IN AN ASSET ALLOCATION PROGRAM

I. The Idea Behind Asset Allocation

If you have money to invest and hear that stocks may be a good  investment,  is
it a wise  idea to use  your  entire  savings  to buy one  stock?  Most  people
wouldn't -- it would be fortunate if it works,  but this strategy holds a great
deal of risk. Surprising news could be reported tomorrow on your stock, and its
price could soar or plummet.

                                      15
<PAGE>

Careful  investors  understand  this  concept  of risk and  lower  that risk by
diversifying their holdings among a number of securities. That way bad news for
one security may be  counterbalanced  by good news regarding other  securities.
But there is still a question  of risk here.  History  tells us that stocks are
generally more volatile than bonds and that long-term  bonds are generally more
volatile  than  short-term  bonds.  History  also tells us that over many years
investments  having higher risks tend to have higher  returns than  investments
that  carry  lower  risks.  From  these  observations  comes  the idea of asset
allocation.

Asset  allocation is a concept that involves  dividing your money among several
different types of investments -- for example,  stocks,  bonds,  and short-term
investments  such as money market  instruments  -- and keeping that  allocation
until your objectives or the financial markets  significantly  change. That way
you're not pinning all your  financial  success on the  fortunes of one kind of
investment.  Money spread across different  investment  categories can help you
reduce market risk and likely will provide more stability to your total return.

Asset  allocation can work because  different  kinds of  investments  generally
follow  different  up-and-down  cycles.  With a variety of  investments in your
portfolio, some are probably doing well, even when others are struggling.

II. Using Asset Allocation in an Investment Program

Most investors understand the concept of diversification,  but asset allocation
goes beyond  diversifying your portfolio;  it's much more of an active process.
You must evaluate your lifestyle, finances, circumstances, long- and short-term
financial  goals,  and tolerance for investment  risk. Once you have structured
your allocation,  you'll need to review it regularly since your objectives will
change over time. Even though we do not charge sales loads or commissions,  our
sales  representatives  are always  available to assist you in structuring  and
reviewing your investment portfolio.

III. USAA's Series of Asset Strategy Funds

USAA's series of asset allocation funds, our Asset Strategy Funds, are designed
for the long-term  investor and are in line with our investment  philosophy for
investors,  specifically  "buy and hold for the  long-term,"  and "don't try to
time the  market."  As shown on the next page,  each of USAA's  Asset  Strategy
Funds has its own different mix of assets and objectives.

                                      16
<PAGE>

===============================================================================
Fund                   Investment Objective                  Invests In
===============================================================================
Income           Seek high current return, with           Bonds and stocks
Strategy         reduced risk over time, through an
Fund             asset allocation strategy which
                 emphasizes income and gives
                 secondary emphasis to long-term
                 growth of capital.

Growth and Tax   Seek a conservative balance between      Tax exempt bonds and 
Strategy Fund    income, the majority of which is tax-    blue chip stocks
                 exempt, and the potential for long-term
                 growth of capital to preserve purchasing
                 power.

Balanced         Seek high total return, with reduced     Stocks and bonds
Strategy         risk over time, through an asset
Fund             allocation strategy that seeks a
                 combination of long-term growth of
                 capital and current income.

Cornerstone      Achieve a positive inflation-adjusted    Foreign & basic value
Strategy         rate of return and a reasonably stable   stocks, government
Fund             value of Fund shares, thereby            securities, real
                 preserving purchasing power of           estate stocks, and
                 shareholders' capital.                   gold stocks

Growth           Seek high total return, with reduced     Small & large cap
Strategy         risk over time, through an asset         stocks, bonds, and
Fund             allocation strategy which emphasizes     international stocks
                 capital appreciation and gives
                 secondary emphasis to income.
===============================================================================

For more  complete  information  about the other  USAA  Asset  Strategy  Funds,
including  charges and expenses,  call us for a  Prospectus.  Read it carefully
before you invest or send money.

                                      17
<PAGE>

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000 [$500 Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and
    $250 for  IRAs]  or no  initial  investment  if you  elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

                                      18
<PAGE>

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Cornerstone Strategy Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

                                      19
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

                                      20
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock certificate form and the shares to be acquired

                                      21
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 20.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general supervision of

                                      22
<PAGE>

the  Board  of  Trustees,  will  use all  relevant,  available  information  to
determine a fair value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see Valuation of
Securities in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term capital gains are taxable to shareholders as

                                      23
<PAGE>

ordinary income, whether received in cash or reinvested in additional shares. A
portion of these dividends may qualify for the 70% dividends received deduction
available to corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      24
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                      YEAR ENDED MAY 31,          EIGHT-MONTH
                                      -----------------           PERIOD ENDED
                         1998        1997        1996      1995   MAY 31, 1994
                         ----        ----        ----      ----   ------------
Net asset value at
  beginning of period $    27.96  $    25.47  $    22.63  $  23.24  $  23.43
Net investment income        .77         .74         .73       .68       .40
Net realized and
  unrealized gain           3.78        3.37        3.18       .67       .29
Distributions from net
  investment income         (.72)       (.78)       (.74)     (.58)     (.59)
Distributions of realized
  capital gains            (1.90)       (.84)       (.33)    (1.38)     (.29)
                      ----------  ----------  ----------  --------  --------
Net asset value at
  end of period       $    29.89  $    27.96  $    25.47  $  22.63  $  23.24
                      ==========  ==========  ==========  ========  ========
Total return (%)*          17.15       16.94       17.79      6.43      3.00
Net assets at end of
  period (000)        $1,500,258  $1,263,355  $1,035,844  $874,587  $814,869
Ratio of expenses to
  average net assets (%)    1.01        1.06        1.15      1.13      1.11(a)
Ratio of net investment
  income to average net
  assets (%)                2.64        2.88        3.06      3.16      2.68(a)
Portfolio turnover (%)     32.73       35.14       36.15     33.17     30.87
- -----------------
  * Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.

                                      25
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

                                      26
<PAGE>

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

CONVERTIBLE SECURITIES

We may invest in convertible securities, which are bonds, preferred stocks, and
other securities that pay interest or dividends and offer the buyer the ability
to convert the security into common stock. The value of convertible  securities
depends  partially  on  interest  rate  changes  and the credit  quality of the
issuer.  Because a convertible  security  affords an investor the  opportunity,
through its conversion feature,  to participate in the capital  appreciation of
the underlying  common stock, the value of convertible  securities also depends
on the price of the underlying common stock.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      27
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      28
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                              Growth Strategy Fund

                               is included herein
<PAGE>
                                  USAA GROWTH
                                 STRATEGY FUND

                                   Prospectus
                                October 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?..... 2
Main Risks of Investing in This Fund........................... 2
Is This Fund for You?.......................................... 3
Could the Value of Your Investment in This Fund Fluctuate?..... 3
Fees and Expenses.............................................. 5
Fund Investments............................................... 6
Fund Management................................................14
Using Mutual Funds in an Asset Allocation Program..............17
How to Invest..................................................19
Important Information About Purchases and Redemptions..........22
Exchanges......................................................22
Shareholder Information........................................23
Financial Highlights...........................................26
Appendix A ....................................................27
Appendix B ....................................................31

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's investment objective is to seek high total return, with reduced risk
over time,  through  an asset  allocation  strategy  which  emphasizes  capital
appreciation  and gives  secondary  emphasis to income.  Using  pre-set  target
ranges,  we will  invest the Fund's  assets  mostly in stocks,  and to a lesser
extent, bonds and money market instruments.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of investing in this Fund are market risk,  the unique risks
of investing in foreign stocks, interest rate risk, and credit risk.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks, regardless  of the  success or failure of an
    individual company's operations.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments in U.S.  Government  securities will decline due to an increase
    in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

o   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

                                       2
<PAGE>

Other risks of the Fund described later in the prospectus  include  rebalancing
risks and the risks of investing in REITs.  As with other mutual funds,  losing
money is an additional risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are  seeking a fund  that will  diversify  your  holdings  among a wide
    variety of investment categories.
|X| You are willing to accept moderate to high risk.
|X| You are willing to take some exposure to the stock market.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of five years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase  or  decrease.  The bar chart shown on the next page  illustrates  the
Fund's volatility and performance from year to year over the life of the Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1995*               6.50
     1996               22.13
     1997                9.10

     *FUND BEGAN OPERATIONS ON SEPTEMBER 1, 1995.

     THE GROWTH  STRATEGY  FUND'S TOTAL RETURN FOR THE  SIX-MONTH  PERIOD ENDED
     JUNE 30, 1998, WAS 10.65%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 12.58%  (quarter  ending June 30, 1997) and the lowest total return
for a quarter was -10.82% (quarter ending December 31, 1997).

The table below shows how the Fund's  average  annual  returns for the one-year
period and the life of the Fund compared to those of a  broad-based  securities
market index.  Remember,  historical  performance does not necessarily indicate
what will happen in the future.

===============================================================================
  Average Annual Total Returns                          Since Fund's
  (for the period ending             Past               Inception on
  December 31, 1997)                1 Year            September 1, 1995
- -------------------------------------------------------------------------------
  Growth Strategy Fund               9.10%                  16.08%
- -------------------------------------------------------------------------------
  S&P 500 Index*                    33.35%                  29.00%
===============================================================================
  * THE  S&P  500  INDEX  IS  A  BROAD-BASED  COMPOSITE  UNMANAGED  INDEX  THAT
    REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500  WIDELY-HELD,
    PUBLICLY-TRADED STOCKS.

                                       4
<PAGE>

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 4 9 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLine(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu, press 1
again for prices and returns. Then, press 49# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                     GrStr

                                     TICKER
                                     SYMBOL
                                     USGSX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "GrStr." If you prefer to obtain this  information  from an on-line
computer service, you can do so by using the ticker symbol "USGSX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

       Management Fees                            .75%
       Distribution (12b-1) Fees                  None
       Other Expenses                             .50%
                                                 -----
       Total Annual Fund Operating Expenses      1.25%
                                                 =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment, assuming (1) 5% annual return, (2) the Fund's

                                       5
<PAGE>

operating  expenses  remain the same,  and (3) you redeem all of your shares at
the end of the periods shown.

                 1 year.............. $  127
                 3 years.............    397
                 5 years.............    686
                10 years.............  1,511

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's  principal  investment  strategy is to provide a diversified
        investment  program  within one mutual  fund by  allocating  the Fund's
        assets in each of the following investment  categories according to the
        following targeted ranges. Securities are classified by category at the
        time of purchase.

        [PIE CHART]
                                          PERCENTAGE TARGET RANGE OF NET ASSETS
        INVESTMENT CATEGORY
          LARGE CAP STOCKS                                  25-35%
          SMALL CAP STOCKS                                  25-35%
          INTERNATIONAL STOCKS                              15-25%
          BONDS                                             15-25%
          MONEY MARKET INSTRUMENTS                           0-10%

The ranges allow for a variance within each investment  category.  The Board of
Trustees  may revise the target  ranges upon 60 days' prior  written  notice to
shareholders.  However,  we may go outside the ranges on a temporary  defensive
basis without  shareholder  notification  whenever we believe it is in the best
interest of the Fund and its shareholders.

   Q    Why are stocks and bonds mixed in the same Fund?

   A    From  time  to  time  the  stock  and  bond   markets   may   fluctuate
        independently  of each other.  In other  words,  a decline in the stock
        market  may,  in  certain  instances,  be  offset by a rise in the bond
        market, or vice versa. As a result, the Fund, with its mix of stocks

                                       6
<PAGE>

        and bonds,  is expected in the long run to entail less market risk (and
        potentially  less return) than a mutual fund  investing  exclusively in
        stocks.

   Q    How are the investment categories and target ranges selected?

   A    The  investment  categories  and the target  ranges  were  selected  to
        provide  investors  with a  diversified  investment  in a single mutual
        fund.  Stocks provide the potential for long-term  capital growth while
        bonds provide a high current return. Money market instruments provide a
        means for temporary  investment of cash balances  arising in the normal
        course of business.

        However, as a temporary defensive measure because of market,  economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    What actions are taken to keep the Fund's asset allocations  within the
        target ranges?

   A    If market  action  causes the actual  assets of the Fund in one or more
        investment  categories  to  move  outside  the  ranges,  we  will  make
        adjustments to rebalance the portfolio.  In general,  we will rebalance
        the portfolio at least once during each  quarter.  In  rebalancing  the
        Fund's  portfolio,  we will buy or sell securities to return the actual
        allocation  of the  Fund's  assets to within  its  target  ranges.  For
        example,  the Fund's  portfolio  could begin a quarter  with its assets
        allocated  30% in large cap  stocks,  30% in small cap  stocks,  20% in
        foreign  stocks,  15% in  bonds,  and 5% in money  market  instruments.
        During the quarter,  due to market returns,  the Fund's portfolio could
        hold 40% in large cap stocks,  30% in small cap stocks,  20% in foreign
        stocks, 5% in bonds, and 5% in money market instruments.  In this case,
        we would sell large cap  stocks  and use the  proceeds  to buy bonds to
        bring stocks and bonds back to within their target ranges.

[CAUTION LIGHT]
REBALANCING  RISKS. In purchasing and selling  securities in order to rebalance
its portfolio,  the Fund will pay more in brokerage  commissions  than it would
without a rebalancing  policy.  As a result of the need to rebalance,  the Fund
also has less  flexibility  in the timing of purchases  and sales of securities
than it would otherwise. While we will attempt to minimize

                                       7
<PAGE>

any adverse impact to the Fund or its shareholders,  the Fund may have a higher
proportion of capital gains and a lower return than a fund that does not have a
rebalancing policy.

Large Cap Stocks

   Q    What types of Large Cap Stocks are included in the Fund's portfolio?

   A    The Large Cap Stocks in the  Fund's  portfolio  will  consist of common
        stocks of companies that have market  capitalizations  of $1 billion or
        more at the time of purchase.  We may also invest the Fund's  assets in
        any of the following:

        o real estate investment trusts (REITs) and
        o securities  convertible  into common stocks or securities which carry
          the right to buy common stocks (referred to as "equity securities").

[CAUTION LIGHT]
REITs.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated  with the direct  ownership of real estate.  In addition,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.

   Q    Will  the  Fund  continue  to hold  such  securities  if  their  market
        capitalization falls below $1 billion?

   A    The Fund may  continue  to hold or  purchase  more of a  security  of a
        company  whose market  capitalization  has  declined  below $1 billion.
        Ordinarily,  we would  continue  to treat the  security  as a large cap
        stock; although we may, in our discretion, reclassify the security as a
        small cap stock or limit the Fund's  holdings  in such  security  if we
        determine it to be in the best interest of the Fund.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    He generally purchases  out-of-favor growth stocks.  However, at times,
        it may be  difficult  to  find a  sufficiently  varied  group  of  such
        companies.  In such cases,  he will invest a portion of this category's
        assets in a diversified  group of large  capitalization  growth stocks.
        Stocks are sold when he believes they are overvalued.  Overvaluation is
        generally  caused either by earnings  forecasts that are too optimistic
        or unrealistic multiples that the market places on projected earnings.

                                       8
<PAGE>

Small Cap Stocks

   Q    What types of Small Cap Stocks are included in the Fund's portfolio?

   A    The Small Cap Stocks in the  Fund's  portfolio  will  consist of common
        stocks of companies  that have market  capitalizations  of less than $1
        billion at the time of purchase.  We may also invest the Fund's  assets
        in any of the following:

        o real estate investment trusts (REITs) and
        o securities  convertible into common stocks, or securities which carry
          the right to buy common stocks (referred to as "equity securities").

   Q    Will  the Fund  continue  to hold  these  securities  if  their  market
        capitalization increases above $1 billion?

   A    Similar to the Large Cap Stocks category, the Fund may continue to hold
        or purchase more of a security of a company whose market capitalization
        has increased above $1 billion.  Ordinarily, we would continue to treat
        the security as a small cap stock;  although we may, in our discretion,
        reclassify  the  security  as a large  cap  stock or limit  the  Fund's
        holdings in such security if we determine it to be in the best interest
        of the Fund.

   Q    Is there a greater risk in investing in smaller companies?

   A    Yes.  Investing  in  smaller  companies,  especially  those that have a
        narrow product line or are traded infrequently,  often involves greater
        risk than investing in established companies with proven track records.
        These   securities  may  be  subject  to  more  price  volatility  than
        securities of larger companies.

   Q    How do the portfolio  managers for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    They tend to invest in small  capitalization  companies that have rapid
        sales and earnings growth potential.  They seek companies that are well
        positioned to take advantage of emerging, long-term social and economic
        trends and have ample financial resources to sustain their growth. They
        are inclined to reduce or sell investments in companies if their market
        capitalizations grow to the point that they are clearly no longer small
        capitalization  stocks of if their stock prices appreciate  excessively
        in relation to fundamental prospects. Companies will also be considered
        for sale if they fail to realize their growth potential or if there are
        more attractive opportunities elsewhere.

                                       9
<PAGE>

International Stocks

   Q    What role do International Stocks play in the Fund's portfolio?

   A    From time to time,  the U.S. and foreign  stock  markets may  fluctuate
        independently  of each other.  In other words,  a decline in one market
        may, in certain circumstances, be offset by a rise in the other market.
        In addition,  foreign equity markets may provide attractive returns not
        otherwise available in the U.S. markets.

   Q    What is considered to be a "foreign company?"

   A    A company is a foreign  company if it is organized  under the laws of a
        foreign country;  and it must also have one of the following additional
        characteristics:

        o the principal  trading market for the stock is in a foreign  country;
          or
        o at least 50% of its revenues or profits are derived  from  operations
          within foreign countries; or
        o at least 50% of its assets are located within foreign countries.

   Q    What are the potential  risks  associated  with  investments in foreign
        countries?

   A    Because the Fund's  assets will be  invested in foreign  securities  in
        either foreign or U.S. markets,  including American Depositary Receipts
        (ADRs) and Global  Depositary  Receipts (GDRs),  the Fund is subject to
        the following risks:

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

        [CAUTION LIGHT]
        FOREIGN INVESTING.  Investing in foreign securities poses unique risks:
        currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
        increased  price  volatility;  exchange  control  regulations;  foreign
        ownership  limits;  different  accounting,  reporting,  and  disclosure
        requirements;  and  difficulties in obtaining legal  judgments.  In the
        past,  equity and debt  instruments  of foreign  markets have been more
        volatile than equity and debt instruments of U.S. securities markets.

        o EMERGING MARKETS RISK. A country that is in the initial stages of its
          industrial  cycle is  considered to be an emerging  markets  country.
          Investments  in  developing  countries  involve  exposure to economic
          structures  that are  generally  less  diverse and mature than in the
          United States and to political  systems which may be less stable.  In
          the past, markets of  developing

                                      10
<PAGE>

          countries  have been more  volatile  than the  markets  of  developed
          countries.

        o POLITICAL RISK. Political risk includes a greater potential for coups
          d'etat, revolts, and expropriation by governmental organizations. For
          example, we may invest the Fund's assets in Eastern Europe and former
          states  of the  Soviet  Union  (also  known  as the  Commonwealth  of
          Independent  States or CIS).  These  countries  were under  communist
          systems  which  had  nationalized  private  industry.   There  is  no
          guarantee that  nationalization may not occur again in this region or
          others in which we may invest the Fund's  assets,  in which case,  we
          may  lose  all or part of the  Fund's  investment  in that  country's
          issuers.

   Q    How  do  the  portfolio  managers  for  this  portion  of   the  Fund's
        portfolio decide which securities to buy and sell?

   A    They review countries and regions for economic and political  stability
        as well as future prospects.  Then they research  individual  companies
        looking  for  favorable  valuations,   growth  prospects,   quality  of
        management, and industry outlook.  Securities are sold  if they believe
        they  are   overvalued   or  if  the  economic  or  political   outlook
        significantly deteriorates.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

Bonds and Money Market Instruments

   Q    What types of the bonds are included in the Fund's portfolio?

   A    We will invest in bonds that have been  selected  for their high yields
        in relation to the risk involved.  These  securities must be investment
        grade at the time of purchase and may include any of the following:

        o obligations   of   the   U.S.   Government,    its   agencies,    and
          instrumentalities;
        o mortgage-backed securities;
        o asset-backed securities;

                                      11
<PAGE>

        o corporate debt securities, such as notes and bonds;
        o obligations  of state and local  governments,  and their agencies and
          instrumentalities;
        o master-demand notes;
        o Eurodollar obligations;
        o Yankee obligations; and
        o other debt securities.

        Further  description of these securities is found in APPENDIX A on page
        27.

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What are considered investment-grade securities?

   A    Investment-grade  securities include securities issued or guaranteed by
        the U.S. Government,  its agencies, and  instrumentalities,  as well as
        securities  rated within the categories  listed by the following rating
        agencies:

===============================================================================
                           Long-term         Short-term
        Rating Agency      debt securities   debt securities
===============================================================================
        Moody's Investors                    At least Prime-3 or
           Services, Inc.  At least Baa      MIG 4/VMIG 4
- -------------------------------------------------------------------------------
        Standard & Poor's
           Ratings Group   At least BBB      At least A-3 or SP-2
- -------------------------------------------------------------------------------
        Fitch IBCA, Inc.   At least BBB      At least F-3
- -------------------------------------------------------------------------------
        Duff and Phelps    At least BBB      At least D-3
===============================================================================

        or  if  unrated  by  these  agencies,  we  must  determine  that  these
        securities are of equivalent investment quality.

        You will find a complete  description  of the above debt ratings in the
        Fund's Statement of Additional Information.

                                      12
<PAGE>

[CAUTION  LIGHT]
CREDIT  RISK.  The bonds in the Fund's  portfolio  are subject to credit  risk.
Credit  risk is the  possibility  that an  issuer  of a bond  will fail to make
timely  payments of interest or  principal.  We attempt to minimize  the Fund's
credit risk by investing in securities  considered investment grade at the time
of purchase.  When evaluating potential  investments for the Fund, our analysts
also assess credit risk and its impact on the Fund's  portfolio.  Nevertheless,
even investment-grade  securities are subject to some credit risk. Bonds in the
lowest-rated  investment  grade  category  have  speculative   characteristics.
Changes in economic  conditions or other  circumstances are more likely to lead
to a weakened capability to make principal and interest payments on these bonds
than is the case for higher-rated bonds. In addition, the ratings of securities
are estimates by the rating  agencies of the credit quality of the  securities.
The ratings may not take into account every risk related to whether interest or
principal will be repaid on a timely basis.

   Q    What happens if the rating of a security is downgraded below investment
        grade?

   A    We will  determine  whether  it is in the best  interest  of the Fund's
        shareholders to continue to hold the security in the Fund's  portfolio.
        If  downgrades  result in more than 5% of the Fund's  net assets  being
        invested in securities that are less than investment-grade  quality, we
        will take  immediate  action  to reduce  the  Fund's  holdings  in such
        securities  to 5% or less of the Fund's net  assets,  unless  otherwise
        directed by the Board of Trustees.

   Q    How does the portfolio manager for this portion of the Fund's portfolio
        decide which securities to buy and sell?

   A    When  purchasing  securities,  he does not rely upon an  interest  rate
        forecast.   Rather,   he  searches  for  securities   that  offer  good
        risk/reward  characteristics.  This  leads him to buy  higher  yielding
        bonds of  companies  that are  stable  or  improving.  He also looks to
        purchase  securities  that will  provide a good fit within the  overall
        portfolio.  If a  security  within  the  portfolio  does not meet  this
        criteria, it will be sold.

                                      13
<PAGE>

   Q    What  types of money  market  instruments  are  included  in the Fund's
        portfolio?

   A    The money  market  instruments  included in the Fund's  portfolio  will
        consist of high-quality,  U.S. dollar  denominated debt securities that
        have  remaining  maturities of one year or less.  They may carry either
        fixed or variable interest rates and may include any of the following:

        o obligations of the U.S. Government;
        o commercial paper, or other short-term corporate obligations;
        o repurchase agreements collateralized with U.S. Government securities;
        o certificates of deposit;
        o bankers' acceptances; and
        o other financial institution obligations.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 27.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average  net assets for the fiscal year ended May 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

                                      14
<PAGE>

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

[PHOTOGRAPH OF PORTFOLIO MANAGERS]
   SEATED L TO R: DAVID G. PARSONS. W. TRAVIS SELMIER, II, DAVID G. PEEBLES
    STANDING L TO R: ALBERT C. SEBASTIAN, ERIC M. EFRON, PAMELA K. BLEDSOE,
                      PAUL H. LUNDMARK, AND JOHN K. CABEL

LARGE CAP STOCKS

David G. Parsons,  Assistant Vice President of Equity  Investments  since March
1995, is the asset allocation manager of the Fund and has managed the Large Cap
Stocks  investment  category since September  1995. He has 15 years  investment
management  experience  working  for  us.  Mr.  Parsons  earned  the  Chartered
Financial  Analyst (CFA) designation in 1986 and is a member of the Association
for  Investment  Management and Research  (AIMR) and the San Antonio  Financial
Analysts Society,  Inc. (SAFAS).  He holds an MBA from the University of Texas,
an MA from Southern Illinois University, and a BA from Austin College, Texas.

SMALL CAP STOCKS

John K. Cabell,  Jr. and Eric M. Efron,  Assistant  Vice  Presidents  of Equity
Investments  since September 1996, have managed the Small Cap Stocks investment
category since September 1995.

Mr. Cabell has 20 years investment  management experience and has worked for us
for nine years. He served as Chief Economist for Retirement  Systems of Alabama
from March 1991 to March 1994.  Mr. Cabell earned the CFA  designation  in 1982
and is a member of AIMR and SAFAS.  He holds an MA and a BS from the University
of Alabama.

                                      15
<PAGE>

Mr. Efron has 23 years investment  management  experience and has worked for us
for six  years.  Mr.  Efron  earned the CFA  designation  in 1983 and is also a
member of AIMR and SAFAS. He holds an MBA from New York University,  an MA from
the University of Michigan, and a BA from Oberlin College, Ohio.

INTERNATIONAL STOCKS

Albert C.  Sebastian,  Assistant  Vice  President of Equity  Investments  since
September 1996, has managed and co-managed the International  Stocks investment
category since September 1995. He has 14 years investment management experience
and has worked for us for seven years. Mr. Sebastian earned the CFA designation
in 1989 and is a member  of  AIMR,  SAFAS,  and the  International  Society  of
Financial  Analysts (ISFA). He holds an MBA from the University of Michigan and
a BA from Holy Cross College, Massachusetts.

David G. Peebles and W. Travis Selmier,  II, co-manage the International Stocks
investment  category  with  Mr.  Sebastian.   Mr.  Sebastian   coordinates  the
activities of the Managers.

David G. Peebles, Vice President of Equity Investments since February 1988, has
co-managed the International  Stocks investment category since October 1996. He
has 32 years  investment  management  experience  and has  worked for us for 14
years.  Mr. Peebles earned the CFA designation in 1971 and is a member of AIMR,
SAFAS, and ISFA. He holds an MBA and a BS from Texas Christian University.

W. Travis Selmier,  II,  Assistant Vice President of Equity  Investments  since
September 1996, has co-managed the  International  Stocks  investment  category
since October 1996. He has 11 years  investment  management  experience and has
worked for us for seven years.  Mr. Selmier earned the CFA  designation in 1990
and is a member  of  AIMR,  SAFAS,  and  ISFA.  He  holds  an MBA from  Indiana
University,  a  Certificate  of  Proficiency  from Sophia  University  Japanese
Language Institute,  Japan, and a BA from the University of California at Santa
Barbara.

BONDS

Paul H. Lundmark,  Assistant Vice President of Fixed Income  Investments  since
December 1996, has managed the Bonds investment  category since September 1995.
He has 12 years investment  management experience and has worked for us for six
years.  Mr. Lundmark earned the CFA designation in 1989 and is a member of AIMR
and SAFAS. He holds an MBA and BSB from the University of Minnesota.

MONEY MARKET INSTRUMENTS

Pamela K. Bledsoe,  Assistant  Vice  President of Money Market Funds since July
1998, has managed the Money Market Instruments category since May 1996. She has
ten years  investment  management  experience  and has  worked for us for seven
years. Ms. Bledsoe earned the CFA designation in 1992 and is a

                                      16
<PAGE>

member of AIMR and SAFAS. She holds an MBA from Texas Christian  University and
a BS from Louisiana Tech University.

USING MUTUAL FUNDS IN AN ASSET ALLOCATION PROGRAM

I. The Idea Behind Asset Allocation

If you have money to invest and hear that stocks may be a good  investment,  is
it a wise  idea to use  your  entire  savings  to buy one  stock?  Most  people
wouldn't -- it would be fortunate if it works,  but this strategy holds a great
deal of risk. Surprising news could be reported tomorrow on your stock, and its
price could soar or plummet.

Careful  investors  understand  this  concept  of risk and  lower  that risk by
diversifying their holdings among a number of securities. That way bad news for
one security may be  counterbalanced  by good news regarding other  securities.
But there is still a question  of risk here.  History  tells us that stocks are
generally more volatile than bonds and that long-term  bonds are generally more
volatile  than  short-term  bonds.  History  also tells us that over many years
investments  having higher risks tend to have higher  returns than  investments
that  carry  lower  risks.  From  these  observations  comes  the idea of asset
allocation.

Asset  allocation is a concept that involves  dividing your money among several
different types of investments -- for example,  stocks,  bonds,  and short-term
investments  such as money market  instruments  -- and keeping that  allocation
until your objectives or the financial markets  significantly  change. That way
you're not pinning all your  financial  success on the  fortunes of one kind of
investment.  Money spread across different  investment  categories can help you
reduce market risk and likely will provide more stability to your total return.

Asset  allocation can work because  different  kinds of  investments  generally
follow  different  up-and-down  cycles.  With a variety of  investments in your
portfolio, some are probably doing well, even when others are struggling.

II. Using Asset Allocation in an Investment Program

Most investors understand the concept of diversification,  but asset allocation
goes beyond  diversifying your portfolio;  it's much more of an active process.
You must evaluate your lifestyle, finances, circumstances, long- and short-term
financial  goals,  and tolerance for investment  risk. Once you have structured
your allocation,  you'll need to review it regularly since your objectives will
change over time. Even though we do not charge sales loads or commissions,  our
sales  representatives  are always  available to assist you in structuring  and
reviewing your investment portfolio.

                                      17
<PAGE>

III. USAA's Series of Asset Strategy Funds

USAA's series of asset allocation funds, our Asset Strategy Funds, are designed
for the long-term  investor and are in line with our investment  philosophy for
investors,  specifically  "buy and hold for the  long-term,"  and "don't try to
time the market." As shown below,  each of USAA's Asset  Strategy Funds has its
own different mix of assets and objectives.

===============================================================================
Fund                   Investment Objective                  Invests In
===============================================================================
Income           Seek high current return, with           Bonds and stocks
Strategy         reduced risk over time, through an
Fund             asset allocation strategy which
                 emphasizes income and gives
                 secondary emphasis to long-term
                 growth of capital.

Growth and Tax   Seek a conservative balance between      Tax exempt bonds and 
Strategy Fund    income, the majority of which is tax-    blue chip stocks
                 exempt, and the potential for long-term
                 growth of capital to preserve purchasing
                 power.

Balanced         Seek high total return, with reduced     Stocks and bonds
Strategy         risk over time, through an asset
Fund             allocation strategy that seeks a
                 combination of long-term growth of
                 capital and current income.

Cornerstone      Achieve a positive inflation-adjusted    Foreign & basic value
Strategy         rate of return and a reasonably stable   stocks, government
Fund             value of Fund shares, thereby            securities, real
                 preserving purchasing power of           estate stocks, and
                 shareholders' capital.                   gold stocks

Growth           Seek high total return, with reduced     Small & large cap
Strategy         risk over time, through an asset         stocks, bonds, and
Fund             allocation strategy which emphasizes     international stocks
                 capital appreciation and gives
                 secondary emphasis to income.
===============================================================================

For more  complete  information  about the other  USAA  Asset  Strategy  Funds,
including  charges and expenses,  call us for a  Prospectus.  Read it carefully
before you invest or send money.

                                      18
<PAGE>

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000 [$500 Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and
    $250 for  IRAs]  or no  initial  investment  if you  elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

                                      19
<PAGE>

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Growth Strategy Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

                                      20
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

                                      21
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock certificate form and the shares to be acquired

                                      22
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 21.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general supervision of the Board of

                                      23
<PAGE>

Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see Valuation of
Securities in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term capital gains are taxable to shareholders as

                                      24
<PAGE>

ordinary income, whether received in cash or reinvested in additional shares. A
portion of these dividends may qualify for the 70% dividends received deduction
available to corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      25
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total returns in the table  represent the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.
                                   YEAR ENDED MAY 31,         NINE-MONTH
                                   -----------------         PERIOD ENDED
                                  1998           1997        MAY 31, 1996*
                                  ----           ----        -------------
Net asset value at
  beginning of period          $   13.10      $   12.74      $   10.00
Net investment income                .13            .15            .11(b)
Net realized and
  unrealized gain                   1.43            .77           2.66
Distributions from net
  investment income                 (.13)          (.12)          (.03)
Distributions of realized
  capital gains                     (.23)          (.44)          -
                               ---------      ---------      ---------
Net asset value at
  end of period                $   14.30      $   13.10      $   12.74
                               =========      =========      =========
Total return (%)**                 12.12           7.73          27.76
Net assets at end of
  period (000)                 $ 249,412      $ 193,921      $  87,188
Ratio of expenses to
  average net assets (%)            1.25           1.31           1.66(a)
Ratio of net investment
  income to average net
  assets (%)                        0.97           1.46           1.34(a)
Portfolio turnover (%)             69.42          62.50          40.21
- ----------------
  * Fund commenced operations September 1, 1995.
 ** Assumes reinvestment of all dividend income and capital gain  distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of  12  months of
    operations.
(b) Calculated using weighted average shares.

                                      26
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES

We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation (Freddie Mac). These

                                      27
<PAGE>

securities  represent  ownership in a pool of mortgage loans.  They differ from
conventional  bonds in that  principal is paid back to the investor as payments
are  made on the  underlying  mortgages  in the  pool.  Accordingly,  the  Fund
receives  monthly  scheduled  payments of principal and interest along with any
unscheduled principal  prepayments on the underlying  mortgages.  Because these
scheduled and unscheduled  principal  payments must be reinvested at prevailing
interest rates, mortgage-backed securities do not provide an effective means of
locking in long-term  interest rates for the investor.  Like other fixed income
securities,  when interest rates rise, the value of a mortgage-backed  security
generally will decline;  however, when interest rates are declining,  the value
of mortgage-backed securities with prepayment features may not increase as much
as other fixed income securities.

Mortgage-backed  securities also include  collateralized  mortgage  obligations
(CMOs).  CMOs are obligations fully  collateralized by a portfolio of mortgages
or  mortgage-related  securities.  CMOs are divided into pieces (tranches) with
varying maturities.  The cash flow from the underlying mortgages is used to pay
off each tranche  separately.  CMOs are designed to provide investors with more
predictable maturities than regular mortgage securities but such maturities can
be  difficult  to  predict  because of the  effect of  prepayments.  Failure to
accurately predict  prepayments can adversely affect the Fund's return on these
investments. CMOs may also be less marketable than other securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely
to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

The weighted  average  life of such  securities  is likely to be  substantially
shorter  than their stated  final  maturity as a result of scheduled  principal
payments and unscheduled principal prepayments.

MUNICIPAL LEASE OBLIGATIONS

We may invest the Fund's assets in a variety of instruments  commonly  referred
to as municipal lease obligations, including:

o   Leases,
o   Installment purchase contracts, and
o   Certificates of participation in such leases and contracts.

                                      28
<PAGE>

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending  arrangements  between  the  lender  and  borrower,  these  instruments
generally will not be traded,  and there  generally is no secondary  market for
these notes,  although they are redeemable  (and  immediately  repayable by the
borrower) at face value, plus accrued interest, at any time. We will invest the
Fund's  assets in master  demand  notes  only if the Board of  Trustees  or its
delegate has determined that they are of credit quality  comparable to the debt
securities in which the Fund generally may invest.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

PUT BONDS

We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated maturity (put bonds).

o   Such securities will normally trade as if maturity is the earlier put date,
    even  though  stated  maturity  is  longer.   Under  the  Fund's  portfolio
    allocation  procedure,  maturity  for put bonds is deemed to be the date on
    which the put becomes exercisable.

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

                                      29
<PAGE>

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      30
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      31
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                             Emerging Markets Fund

                               is included herein
<PAGE>
                                 USAA EMERGING
                                  MARKETS FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment in This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 6
Fund Management.................................................10
Using Mutual Funds in an Investment Program.....................11
How to Invest...................................................12
Important Information About Purchases and Redemptions...........15
Exchanges.......................................................16
Shareholder Information.........................................17
Financial Highlights............................................20
Appendix A .....................................................21
Appendix B .....................................................23
Appendix C......................................................25

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective of capital  appreciation.  We will attempt to achieve
this  objective by  investing  the Fund's  assets  mostly in stocks of emerging
market countries.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing  in this Fund are market risk and the risks of
foreign investing.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

Those  risks  are  particularly  heightened  in this  Fund due to the fact that
within the  universe  of foreign  investing,  investments  in  emerging  market
countries are most  volatile.  Emerging  market  countries are less diverse and
mature than other  countries and tend to be  politically  less stable.  As with
other  mutual  funds,  losing  money  is an  additional  risk  associated  with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

                                       2
<PAGE>

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are looking for an  investment  in foreign  securities  to balance your
    domestic securities portfolio.
|X| You are willing to give up current income for long-term growth.
|X| You are willing to accept very high risk.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of seven years or more.
|X| You need an investment that provides steady income.
|X| You need an investment that provides tax-free income.
|X| You are unwilling to take high risk for long-term growth.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or  decrease.  Because the risks are higher in emerging  markets  than
developed  international  markets or the United States, the Fund is expected to
be  significantly  more volatile than the average  equity mutual fund.  The bar
chart shown on the next page illustrates the Fund's  volatility and performance
from year to year over the life of the Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1994*              -8.30
     1995                3.65
     1996               16.59
     1997               -3.46

     *FUND BEGAN OPERATIONS ON NOVEMBER 7, 1994.

     THE EMERGING  MARKETS  FUND'S TOTAL RETURN FOR THE SIX-MONTH  PERIOD ENDED
     JUNE 30, 1998, WAS -17.16%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 14.11%  (quarter  ending June 30, 1995) and the lowest total return
for a quarter was -17.24% (quarter ending December 31, 1997).

The table below shows how the Fund's  average  annual  returns for the one-year
period and the life of the Fund compared to those of a  broad-based  securities
market index.  Remember,  historical  performance does not necessarily indicate
what will happen in the future.

===============================================================================
  Average Annual Total Returns                             Since Fund's
  (for the period ending             Past                  Inception on
  December 31, 1997)                1 Year               November 7, 1994
===============================================================================
  Emerging Markets Fund            -3.46%                       2.15%
- -------------------------------------------------------------------------------
  International Financial
   Corporation (IFC) Global
   Composite Index                -14.54%                     -10.21%
===============================================================================
  *INTERNATIONAL  FINANCIAL  CORPORATION  (IFC)  GLOBAL  COMPOSITE  INDEX IS AN
   UNMANAGED  BROAD-BASED  INDEX OF EMERGING MARKETS PER THE WORLD BANK GNP PER
   CAPITAL DEFINITION.

                                       4
<PAGE>

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 6 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu, press 1
again for prices and returns. Then, press 56# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                     EmgMkt

                                     TICKER
                                     SYMBOL
                                     USEMX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "EmgMkt." If you prefer to obtain this  information from an on-line
computer service, you can do so by using the ticker symbol "USEMX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and  transfer  agent fees.  The  figures on the next page show actual  expenses
during  the past  fiscal  year  ended May 31,  1998,  and are  calculated  as a
percentage of average net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

             Management Fees                           1.00%
             Distribution (12b-1) Fees                  None
             Other Expenses                             .31%
                                                       -----
             Total Annual Fund Operating Expenses      1.31%
                                                       =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment, assuming (1) 5% annual return, (2) the Fund's

                                       5
<PAGE>

operating  expenses  remain the same,  and (3) you redeem all of your shares at
the end of the periods shown.

                     1 year.......... $  133
                     3 years.........    415
                     5 years.........    718
                    10 years.........  1,579

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal  investment strategy is to invest the Fund's total
        assets primarily in equity securities of emerging market companies.  We
        use the term "equity  securities" to include  common stocks,  preferred
        stocks, securities convertible into common stocks, and securities which
        carry the right to buy common stocks.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

   Q    What is an emerging market company?

   A    An issuer is an emerging market company if:

        o it is  organized  under the laws of an  emerging  market  country (as
          defined below);
        o the principal  trading market for its stock is in an emerging  market
          country; or
        o at least 50% of its revenues or profits are derived  from  operations
          within  emerging  market  countries or at least 50% of its assets are
          located within emerging market countries.

                                       6
<PAGE>

   Q    What countries are considered as emerging markets?

   A    For our purposes,  emerging  market  countries are all countries of the
        world  excluding  the  following,  which are  referred to as  developed
        countries:

        ASIA:     Australia, Japan, New Zealand
        AMERICAS: Canada, the United States
        EUROPE:   Austria, Belgium, Denmark, Finland, France, Germany, Holland,
                  Italy,  Luxembourg, Norway,  Spain, Sweden,  Switzerland, the
                  United Kingdom

   Q    What are the  characteristics  of the economic and political systems of
        emerging market countries?

   A    The economic and political  systems of emerging market countries can be
        described as possessing two or more of the following characteristics:

        o The  countries  in  which  these  stock  markets  are  found  have  a
          less-developed economy than the developed countries.
        o Economies of these countries are likely to be undergoing rapid growth
          or some  major  structural  change,  such  as a  change  in  economic
          systems,  rapid development of an industrial or value-added  economic
          sector,  or  attainment  of  significantly  better terms of trade for
          primary goods, to name a few examples.
        o Sustainable  economic growth rates are higher, or potentially higher,
          than developed countries.
        o Economies of these countries may be benefitting from the rapid growth
          of neighboring  countries and/or may be  significantly  influenced by
          growth of demand in the developed markets.
        o Personal income levels and consumption are generally lower than those
          in developed countries, but may be growing at a faster rate.
        o The  political  system is  likely to be, or appear to be, in  greater
          flux than the developed countries listed above.

                                       7
<PAGE>

   Q    In what emerging market countries does the Fund intend to invest?

   A    Some of the  countries  in which we expect to invest or may  invest the
        Fund's assets include, but are not limited to:

        ASIA:     China,  Hong Kong,  India,  Indonesia,  Korea,  Malaysia,
                  Pakistan, Philippines, Singapore, Taiwan, Thailand
        AMERICAS: Argentina, Brazil, Chile, Columbia, Ecuador, Mexico, Peru,
                  Venezuela
        AFRICA/MIDDLE EAST:  Egypt, Ghana, Israel, Morocco, South Africa, 
                             Turkey, Zimbawe
        EUROPE/OTHER:  Czech Republic, Greece, Hungary, Poland, Portugal, 
                       Russia, Slovakia

   Q    What are the potential risks  associated  with  investments in emerging
        markets?

   A    Because the Fund's  assets will be invested in  securities  of emerging
        market  issuers  in  foreign  or  U.S.  markets,   including   American
        Depositary  Receipts (ADRs) and Global Depositary  Receipts (GDRs), the
        Fund is subject to the following risks:

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

        [CAUTION LIGHT]
        FOREIGN INVESTING.  Investing in foreign securities poses unique risks:
        currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
        increased  price  volatility;  exchange  control  regulations;  foreign
        ownership  limits;  different  accounting,  reporting,  and  disclosure
        requirements;  and  difficulties in obtaining legal  judgments.  In the
        past,  equity and debt  instruments  of foreign  markets have been more
        volatile than equity and debt instruments of U.S. securities markets.

        o EMERGING MARKETS RISK. A country that is in the initial stages of its
          industrial  cycle is  considered to be an emerging  markets  country.
          Investments  in  developing  countries  involve  exposure to economic
          structures  that are  generally  less  diverse and mature than in the
          United States and to political  systems which may be less stable.  In
          the past,  markets of  developing  countries  have been more volatile
          than the markets of developed countries.

        o POLITICAL RISK. Political risk includes a greater potential for coups
          d'etat, revolts, and expropriation by governmental organizations. For
          example, we may invest the Fund's assets in Eastern Europe and former
          states  of the  Soviet  Union  (also  known  as the  Commonwealth  of
          Independent  States or CIS).  These  countries  were under  communist
          systems  which  had  nationalized  private  industry.   There  is  no
          guarantee that

                                       8
<PAGE>

          nationalization may not occur again in this region or others in which
          we may invest the Fund's  assets,  in which case,  we may lose all or
          part of the Fund's investment in that country's issuers.

   Q    Will the Fund's assets be invested in any other securities?

   A    We may  invest the  remainder  of the  Fund's  assets in  high-quality,
        short-term debt instruments having the following characteristics:

        o remaining  maturities  of less than one year that have been issued or
          guaranteed as to both  principal and interest by the U.S.  Government
          or its agencies or instrumentalities, and

        o repurchase agreements collateralized by such securities.

        The Fund may  also  invest  part of its  cash  position  in  short-term
        sovereign debt securities of emerging market  countries for the purpose
        of  obtaining a higher  yield.  Additionally,  we may invest the Fund's
        assets  in stocks of  selected  issuers  which  have  favorable  growth
        prospects,  but may not be organized or otherwise  situated in emerging
        markets.

        We may also invest the Fund's assets in public and private  sector debt
        and fixed income  instruments  of emerging  market  issuers,  including
        Brady Bonds of selected countries,  which we believe have the potential
        for  significant  capital   appreciation  (due,  for  example,  to  our
        assessment  of  prospects  for the  issuer  or its  domicile  country),
        without regard to any interest or dividend  yields payable  pursuant to
        such  securities.  These latter  investments  may be  considered  to be
        speculative in nature.

        As  a  temporary   defensive  measure  because  of  market,   economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving  its objective  during the time it is in this
        temporary defensive posture.

   Q    Are there any restrictions as to the types of business or operations of
        companies in which the Fund's assets may be invested?

   A    No, there are no restrictions except that we may not invest 25% or more
        of the Fund's total assets in one industry. The Fund's investments will
        be diversified in four or more countries.

        We  believe  that  attractive  investment  opportunities  exist in many
        emerging  markets.  While  investing  a  person's  assets  solely in an
        emerging market fund may not be suitable, for those willing to

                                       9
<PAGE>

        accept  higher  volatility,  including  the Emerging  Markets Fund in a
        well-diversified  portfolio could  significantly  enhance returns.  The
        Fund  combines the  advantages  of  diversified  investment in emerging
        markets with the  convenience  and  liquidity of a mutual fund based in
        the United States.

   Q    How does the portfolio manager decide which securities to buy and sell?

   A    He reviews  countries and regions for economic and political  stability
        as well as future prospects.  Then he researches  individual  companies
        looking  for  favorable  valuations,   growth  prospects,   quality  of
        management,  and industry  outlook.  Securities are sold if he believes
        they  are  overvalued  or if the  political  environment  significantly
        deteriorates.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX B on page 23.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed and paid at one percent (1%) of average net
assets for the fiscal year ended May 31, 1998. We also provide services related
to selling the Fund's shares and receive no compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

                                      10
<PAGE>

Portfolio Manager

[PHOTOGRAPH OF PORTFOLIO MANAGER]
W. TRAVIS SELMIER
W. Travis Selmier,  II,  Assistant Vice President of Equity  Investments  since
September  1996,  has  managed  the Fund since  October  1996.  He has 11 years
investment  management  experience  and has worked for us for seven years.  Mr.
Selmier  earned the Chartered  Financial  Analyst  designation in 1990 and is a
member of the Association for Investment  Management and Research,  San Antonio
Financial  Analysts Society,  Inc., and the International  Society of Financial
Analysts. He holds an MBA from Indiana University, a Certificate of Proficiency
from Sophia University  Japanese Language  Institute,  Japan, and a BA from the
University of California at Santa Barbara.

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

                                      11
<PAGE>

For  example,  assume you wish to diversify  internationally.  You could divide
your investments between the Emerging Markets,  Gold,  International,  or World
Growth  Funds and holdings in domestic  funds.  This would give you exposure to
the  opportunities  of  investments  in many foreign  countries and to currency
changes.  This is just one way you could combine funds to fit your own risk and
reward goals.

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 25. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy  Fund,  the USAA  Family of Funds  provides  a broad  range of choices
covering  just  about  any   investor's   investment   objectives.   Our  sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX C on page 25 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that

                                      12
<PAGE>

day.  If we  receive  your  request  or  payment  after  the NAV per  share  is
calculated,  the purchase  will be effective on the next  business  day. If you
plan to purchase Fund shares with a foreign check,  we suggest you convert your
foreign  check  to U.S.  dollars  prior  to  investment  in the Fund to avoid a
potential  delay in the  effective  date of your  purchase of up to four to six
weeks.  Furthermore,  a bank charge may be assessed  in the  clearing  process,
which will be deducted from the amount of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

                                      13
<PAGE>

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Emerging Markets Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

                                      14
<PAGE>

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform Gifts/Transfers to Minors Act (UGMA/UTMA);

                                      15
<PAGE>

(3) all (non-IRA) money market fund accounts;  (4) any account whose registered
owner has an  aggregate  balance  of $50,000 or more  invested  in USAA  mutual
funds; and (5) all IRA accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired are
offered  in  your  state  of  residence.   The  Fund's   transfer   agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 15.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

                                      16
<PAGE>

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end,

                                      17
<PAGE>

which  would be  somewhere  around  the  middle  of July.  The Fund  will  make
additional payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

Taxes

FEDERAL

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

FOREIGN

The Fund may be subject to foreign withholding or other taxes. If more than 50%
of the  value of the  Fund's  total  assets at the  close of any  taxable  year
consists of securities of foreign  corporations,  the Fund may file an election
with the Internal Revenue Service (the Foreign  Election) that would permit you
to take a credit (or a deduction) for foreign income taxes paid by the Fund. If
the  Foreign  Election  is made,  you would  include in your gross  income both
dividends  received from the Fund and foreign income taxes paid by the Fund. As
a shareholder  of the Fund,  you would be entitled to treat the foreign  income
taxes withheld as a credit against your U.S.  federal income taxes,  subject to
the  limitations  set forth in the Code with  respect to the foreign tax credit
generally.  Alternatively,  you could, if it were to your advantage,  treat the
foreign  income taxes  withheld as an itemized  deduction in computing  taxable
income  rather than as a tax credit.  You will not be entitled to a foreign tax
credit for taxes  paid to certain  countries;  however,  if the Fund  otherwise
qualifies  for the  Foreign  Election,  a  deduction  for  such  taxes  will be
available to  shareholders  of the Fund. It is  anticipated  that the Fund will
make the Foreign Election.

                                      18
<PAGE>

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares. A portion of these
dividends may qualify for the 70%  dividends  received  deduction  available to
corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      19
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total returns in the table  represent the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.
                                                             SEVEN-MONTH
                                YEAR ENDED MAY 31,           PERIOD ENDED
                                ------------------              MAY 31,
                            1998        1997       1996          1995*
                            ----        ----       ----          ----
Net asset value at
  beginning of period    $   11.53    $  11.13   $   9.77      $  10.00
Net investment
  income (loss)                .07         .01       (.01)(b)       .03(b)
Net realized and
  unrealized gain (loss)     (2.44)        .89       1.60          (.26)
Distributions from net
  investment income            -           -         (.01)         -
Distributions of realized
  capital gains               (.18)       (.50)      (.22)         -
                         ---------    --------   --------      --------
Net asset value at
  end of period          $    8.98    $  11.53   $  11.13      $   9.77
                         =========    ========   ========      ========
Total return (%)**          (20.97)       8.69      16.93         (2.30)
Net assets at end of
  period (000)           $ 294,888    $ 95,644   $ 51,315      $ 22,914
Ratio of expenses to
  average net assets (%)      1.31        1.81       2.27          2.50(a)
Ratio of expenses to average
  net assets excluding
  reimbursements (%)           -           -          -            2.60(a)
Ratio of net investment
  income (loss) to
  average net assets (%)       .88         .03       (.08)          .53(a)
Portfolio turnover (%)       41.23       61.21      87.98         34.87
- -----------
  * Fund commenced operations November 7, 1994.
 ** Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.
(b) Calculated using weighted average shares.

                                      20
<PAGE>

                                   APPENDIX A

MOODY'S CORPORATE RATINGS

Baa  Bonds  which 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 which 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 other good and bad times over the future.  Uncertainty
     of position characterizes bonds in this class.

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

C    Bonds which 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.

S&P CORPORATE RATINGS

BBB  An  obligation  rated  "BBB"  exhibits  ADEQUATE  protection   parameters.
     However,  adverse economic  conditions or changing  circumstances are more
     likely to lead to a weakened capacity of the obligor to meet its financial
     commitment on the obligation.

Obligations  rated  "BB,"  "B,"  "CCC,"  "CC," and "C" are  regarded  as having
significant  speculative  characteristics.  "BB"  indicates the least degree of
speculation and "C" the highest.  While such  obligations will likely have some
quality  and  protective  characteristics,  these  may be  outweighed  by large
uncertainties or major exposures to adverse conditions.

BB   An  obligation  rated "BB" is LESS  VULNERABLE  to  nonpayment  than other
     speculative  issues.  However,  it faces major  ongoing  uncertainties  or
     exposure to adverse  business,  financial,  or economic  conditions  which
     could lead to the  obligor's  inadequate  capacity  to meet its  financial
     commitment on the obligation.

B    An obligation  rated "B" is MORE VULNERABLE to nonpayment than obligations
     rated  "BB,"  but the  obligor  currently  has the  capacity  to meet  its
     financial commitment on the obligation.  Adverse business,  financial,  or
     economic   conditions  will  likely  impair  the  obligor's   capacity  or
     willingness to meet its financial commitment on the obligation.

                                      21
<PAGE>

CCC  An obligation  rated "CCC" is CURRENTLY  VULNERABLE  to nonpayment  and is
     dependent upon favorable business,  financial, and economic conditions for
     the obligor to meet its  financial  commitment on the  obligation.  In the
     event of adverse business,  financial, or economic conditions, the obligor
     is not likely to have the capacity to meet its financial commitment on the
     obligation.

CC   An obligation rated "CC" is CURRENTLY HIGHLY VULNERABLE to nonpayment.

C    The  rating  "C" may be  used to  cover  a  situation  where a  bankruptcy
     petition has been filed or similar action has been taken,  but payments on
     this obligation are being continued.

D    An obligation rated "D" is in payment default.  The "D" rating category is
     used when payments on an  obligation  are not made on the date due even if
     the  applicable  grace  period has not expired,  unless  Standard & Poor's
     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 or the
     taking of a similar action if payments on an obligation are jeopardized.

     PLUS (+) OR MINUS (-):  THE RATINGS  FROM "AA" TO "CCC" MAY BE MODIFIED BY
     THE ADDITION OF A PLUS OR MINUS SIGN TO SHOW RELATIVE  STANDING WITHIN THE
     MAJOR RATING CATEGORIES.

A description of ratings "A" or better assigned to debt  obligations by Moody's
and S&P is included in APPENDIX A of the Statement of Additional Information.

                                      22
<PAGE>

                                   APPENDIX B

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

BRADY BONDS AND EMERGING MARKET DEBT

We may invest the Fund's  assets in Brady Bonds and public and  private  sector
debt and fixed income  instruments of emerging market issuers.  Brady Bonds are
securities  created  through a  restructuring  plan  introduced  by former U.S.
Treasury  Secretary  Nicholas  Brady.  The Brady Plan made  provisions  whereby
existing  commercial bank loans to both public and private entities in selected
developing  countries  are  exchanged  for  Brady  Bonds.  These  bonds  may be
denominated in other currencies,  but are usually  denominated in U.S. dollars.
Brady Bonds are actively traded in over-the-counter markets. As the markets for
these securities are relatively new, however,  and since they have from time to
time been subject to disruption,  we will monitor,  on a continuous  basis, the
liquidity of Brady Bonds held in the Fund's portfolio.

                                      23
<PAGE>

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

                                      24
<PAGE>

                                   APPENDIX C

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      25
<PAGE>
                                     NOTES
<PAGE>
                                     NOTES
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                                   Gold Fund

                               is included herein
<PAGE>
                                 USAA GOLD FUND

                                   Prospectus
                                October 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment in This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 6
Fund Management................................................. 8
Using Mutual Funds in an Investment Program..................... 9
How to Invest...................................................10
Important Information About Purchases and Redemptions...........13
Exchanges.......................................................14
Shareholder Information.........................................15
Financial Highlights............................................18
Appendix A .....................................................19
Appendix B .....................................................21

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective to seek long-term capital appreciation and to protect
the purchasing  power of your capital  against  inflation.  Current income is a
secondary  objective.  We will  attempt to  achieve  the  Fund's  objective  by
investing the great majority of the Fund's assets in the stocks of domestic and
foreign gold exploration, mining, or processing companies.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of investing in this Fund are the  increased  volatility  of
mining stocks, market risk, and the risks of foreign investing.

o   GOLD  MINING  RISK  involves   additional  risk  because  of  gold's  price
    volatility   and  the  increased   impact  such   volatility   has  on  the
    profitability of gold mining companies.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

As with other mutual funds,  losing money is an additional risk associated with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

                                       2
<PAGE>

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are willing to give up current income for long-term growth.
|X| You are willing to accept very high risk.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of seven years or more.
|X| You need an investment that provides steady income.
|X| You need an investment that provides tax-free income
|X| You are unwilling to take very high risk for long-term growth.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or  decrease.  Because the Fund will invest in  companies  principally
engaged in gold exploration,  mining, or processing, the Fund may be subject to
greater risks and greater market fluctuations than other funds with a portfolio
of securities  representing a broader range of industries.  The bar chart shown
on the next page illustrates the Fund's volatility and performance from year to
year for the past ten years.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1988              -17.11
     1989               18.03
     1990              -26.51
     1991               -4.45
     1992               -7.95
     1993               58.43
     1994               -9.38
     1995                4.04
     1996                0.00
     1997              -38.19

     THE GOLD FUND'S TOTAL RETURN FOR THE SIX-MONTH PERIOD ENDED JUNE 30, 1998,
     WAS -3.26%.

During the ten-year period shown in the bar chart, the highest total return for
a quarter was 30.64% (quarter ending June 30, 1993) and the lowest total return
for a quarter was -29.05% (quarter ending December 31, 1997).

The table  below  shows how the Fund's  average  annual  returns  for the one-,
five-,  and ten-year  periods and the  life of the  Fund compared  to those  of
broad-based  securities market  indexes.  Remember, historical performance does
not necessarily indicate what will happen in the future.

===============================================================================
 Average Annual
 Total Returns                                                      Life of
 December 31, 1997)          1 Year     5 Years      10 Years         Fund
===============================================================================
 Gold Fund                  -38.19%      -1.59%       -5.24%         -3.21%
- -------------------------------------------------------------------------------
 S&P 500 Index*              33.35%      20.25%       18.02%         18.10%
- -------------------------------------------------------------------------------
 Philadelphia Gold &
    Silver Index*           -36.45%        .80%       -3.84%         -1.87%
- -------------------------------------------------------------------------------
 London Gold*               -21.41%      -2.71%       -5.04%         -1.41%
===============================================================================
  *THE  S&P  500  INDEX  IS  A  BROAD-BASED   COMPOSITE  UNMANAGED  INDEX  THAT
   REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500   WIDELY-HELD,
   PUBLICLY-TRADED  STOCKS.  THE  PHILADELPHIA  GOLD & SILVER INDEX IS AN INDEX
   REPRESENTING NINE HOLDINGS IN THE GOLD AND SILVER SECTOR, TYPICALLY REFERRED
   TO AS THE XAU.  LONDON  GOLD IS A  TRADITIONAL  GOLD  BULLION  INDEX THAT IS
   READILY AVAILABLE.

                                       4
<PAGE>

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 0 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLine(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu, press 1
again for prices and returns. Then, press 50# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                      Gold

                                     TICKER
                                     SYMBOL
                                     USAGX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "Gold." If you prefer to obtain  this  information  from an on-line
computer service, you can do so by using the ticker symbol "USAGX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

           Management Fees                         .75%
           Distribution (12b-1) Fees               None
           Other Expenses                          .71%
                                                  -----
           Total Annual Fund Operating Expenses   1.46%
                                                  =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment, assuming (1) 5% annual return, (2) the Fund's

                                       5
<PAGE>

operating  expenses  remain the same,  and (3) you redeem all of your shares at
the end of the periods shown.

                    1 year.............. $  149
                    3 years.............    462
                    5 years.............    797
                   10 years.............  1,746

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal  investment  strategy is to invest at least 80% of
        the Fund's assets during normal market  conditions in equity securities
        of  companies  principally  engaged  in gold  exploration,  mining,  or
        processing.  We use the term  "equity  securities"  to  include  common
        stocks,  preferred stocks,  securities  convertible into common stocks,
        and securities which carry the right to buy common stocks.

        Since the  majority of the Fund's  assets will be invested in companies
        principally  engaged in gold exploration,  mining,  or processing,  the
        Fund may be subject to greater  risks and greater  market  fluctuations
        than other funds with a portfolio of securities  representing a broader
        range of investment  objectives.  An investment in the Fund, by itself,
        should not be considered a balanced investment program.

[CAUTION LIGHT]
VOLATILITY OF GOLD MINING STOCKS.  Gold mining stocks involve  additional  risk
because of gold's price volatility and the increased impact such volatility has
on the profitability of gold mining companies. However, since the market action
of such securities has tended to move  independently  of the broader  financial
markets,  the  addition  of gold  mining  stocks to your  portfolio  may reduce
overall fluctuations in portfolio value.

   Q    Will the Fund's assets be invested in any other securities?

   A    We may invest the remainder of the Fund's  assets in equity  securities
        of companies  similarly  engaged in other precious  metals and minerals
        and in high-quality,  short-term debt instruments  having the following
        characteristics:

                                       6
<PAGE>

        o maturities  of less than one year that have been issued or guaranteed
          as to both  principal  and  interest  by the U.S.  Government  or its
          agencies or instrumentalities, and

        o repurchase agreements collateralized by such securities.

        If we believe  the  outlook  for gold is  unattractive,  as a temporary
        defensive  measure,  we may invest up to 100% of the  Fund's  assets in
        high-quality, short-term debt instruments, which may result in the Fund
        not achieving its  investment  objective  during the time it is in this
        temporary defensive posture.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

   Q    Will the Fund's assets be invested in foreign securities?

   A    We may invest the Fund's  assets in  foreign  securities  purchased  in
        either foreign or U.S. markets,  including American Depositary Receipts
        (ADRs) and Global  Depositary  Receipts  (GDRs).  Additionally,  we may
        invest the Fund's assets in the  securities  of South African  issuers.
        The market  prices of these  securities  and the ability of the Fund to
        hold such  investments  in the future could be affected by the unstable
        political  and social  conditions  in South Africa and its  neighboring
        countries.

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

[CAUTION LIGHT]
FOREIGN INVESTING. Investing in foreign securities poses unique risks: currency
exchange  rate  fluctuations;   foreign  market  illiquidity;  increased  price
volatility;  exchange control regulations;  foreign ownership limits; different
accounting,   reporting,  and  disclosure  requirements;  and  difficulties  in
obtaining legal judgments.  In the past, equity and debt instruments of foreign
markets  have been more  volatile  than  equity  and debt  instruments  of U.S.
securities markets.

    o EMERGING  MARKETS  RISK. A country  that is in the initial  stages of its
      industrial  cycle  is  considered  to be  an  emerging  markets  country.
      Investments  in  developing   countries   involve  exposure  to  economic
      structures  that are generally less diverse and mature than in the United
      States and to political systems which may be less stable. In the past,

                                       7
<PAGE>

      markets of developing  countries have been more volatile than the markets
      of developed countries.

    o POLITICAL  RISK.  Political  risk includes a greater  potential for coups
      d'etat,  revolts,  and expropriation by governmental  organizations.  For
      example,  we may invest the  Fund's  assets in Eastern  Europe and former
      states of the Soviet Union (also known as the Commonwealth of Independent
      States or CIS).  These countries were under  communist  systems which had
      nationalized private industry. There is no guarantee that nationalization
      may not occur  again in this  region or others in which we may invest the
      Fund's  assets,  in which  case,  we may  lose all or part of the  Fund's
      investment in that country's issuers.

   Q    How does the portfolio manager decide which securities to buy and sell?

   A    He looks for well-managed  and prudently  financed  low-cost  producers
        with  good  production  or  reserve  growth  potential  that  sell at a
        reasonable valuation on a risk-adjusted basis.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average  net assets for the fiscal year ended May 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

                                       8
<PAGE>

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

Portfolio Manager

[PHOTOGRAPH OF PORTFOLIO MANAGER]
MARK W. JOHNSON
Mark W. Johnson,  Assistant  Vice President of Equity  Investments  since March
1995,  has  managed the Fund since  January  1994.  He has 24 years  investment
management  experience  and has worked for us for 10 years.  Mr. Johnson earned
the  Chartered  Financial  Analyst  designation  in 1978 and is a member of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial Analysts Society,  Inc. He holds an MBA and a BBA from the University
of Michigan.

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that

                                       9
<PAGE>

this  decision  may include the use of more than one fund of the USAA Family of
Funds.

For  example,  assume you wish to diversify  internationally.  You could divide
your  investments  between  the Gold and  International  Funds and  holdings in
domestic  funds.   This  would  give  you  exposure  to  the  opportunities  of
investments in many foreign countries and to currency changes. This is just one
way you could combine funds to fit your own risk and reward goals.

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 21. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy  Fund,  the USAA  Family of Funds  provides  a broad  range of choices
covering  just  about  any   investor's   investment   objectives.   Our  sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 21 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open. If we receive your request and payment prior to

                                      10
<PAGE>

that time,  your purchase  price will be the NAV per share  determined for that
day.  If we  receive  your  request  or  payment  after  the NAV per  share  is
calculated,  the purchase  will be effective on the next  business  day. If you
plan to purchase Fund shares with a foreign check,  we suggest you convert your
foreign  check  to U.S.  dollars  prior  to  investment  in the Fund to avoid a
potential  delay in the  effective  date of your  purchase of up to four to six
weeks.  Furthermore,  a bank charge may be assessed  in the  clearing  process,
which will be deducted from the amount of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

                                      11
<PAGE>

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Gold Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

                                      12
<PAGE>

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000 or more invested in

                                      13
<PAGE>

USAA mutual funds;  and (5) all IRA accounts (for the first year the account is
open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired are
offered  in  your  state  of  residence.   The  Fund's   transfer   agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

                                      14
<PAGE>

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see Valuation of
Securities in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be somewhere around the middle of July. The Fund will make

                                      15
<PAGE>

additional payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

Taxes

FEDERAL

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

FOREIGN

The Fund may be subject to foreign withholding or other taxes. If more than 50%
of the  value of the  Fund's  total  assets at the  close of any  taxable  year
consists of securities of foreign  corporations,  the Fund may file an election
with the Internal Revenue Service (the Foreign  Election) that would permit you
to take a credit (or a deduction) for foreign income taxes paid by the Fund. If
the  Foreign  Election  is made,  you would  include in your gross  income both
dividends  received from the Fund and foreign income taxes paid by the Fund. As
a shareholder  of the Fund,  you would be entitled to treat the foreign  income
taxes withheld as a credit against your U.S.  federal income taxes,  subject to
the  limitations  set forth in the Code with  respect to the foreign tax credit
generally.  Alternatively,  you could, if it were to your advantage,  treat the
foreign  income taxes  withheld as an itemized  deduction in computing  taxable
income  rather than as a tax credit.  You will not be entitled to a foreign tax
credit for taxes  paid to certain  countries;  however,  if the Fund  otherwise
qualifies  for the  Foreign  Election,  a  deduction  for  such  taxes  will be
available to  shareholders  of the Fund. It is  anticipated  that the Fund will
make the Foreign Election.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term capital gains are taxable to shareholders as

                                      16
<PAGE>

ordinary income, whether received in cash or reinvested in additional shares. A
portion of these dividends may qualify for the 70% dividends received deduction
available to corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                  EIGHT-MONTH
                                    Year Ended May 31,            PERIOD ENDED
                                    -----------------                MAY 31,
                         1998       1997        1996       1995       1994
                         ----       ----        ----       ----       ----
Net asset value at
  beginning of period  $   8.09   $  11.12    $   9.00   $   8.83   $   7.95
Net investment
  income (loss)            (.03)(b)   (.01)(b)    (.02)       .01        .01
Net realized and
  unrealized gain (loss)  (2.19)     (3.02)       2.15        .17        .88
Distributions from net
  investment income         -          -          (.01)      (.01)      (.01)
                       --------   --------    --------   --------   --------
Net asset value at
  end of period        $   5.87   $   8.09    $  11.12   $   9.00   $   8.83
                       ========   ========    ========   ========   ========
Total return (%)*        (27.44)    (27.25)      23.66       2.05      11.19
Net assets at end of
  period (000)         $ 93,226   $121,169    $167,067   $160,223   $176,527
Ratio of expenses to
  average net assets (%)   1.46       1.31        1.33       1.28       1.26(a)
Ratio of net investment
  income (loss) to
  average net assets (%)   (.42)      (.11)       (.14)       .10        .15(a)
Portfolio turnover (%)    19.62      26.40       16.48      34.76      34.75
- ------------
 *  Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio is  not  necessarily  indicative  of 12  months  of
    operations.
(b) Calculated using weighted average shares.

                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      19
<PAGE>

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

                                      20
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      21
<PAGE>
                                     NOTES
<PAGE>
                                     NOTES
<PAGE>
  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                               International Fund

                               is included herein
<PAGE>
                            USAA INTERNATIONAL FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?..... 2
Main Risks of Investing in This Fund........................... 2
Is This Fund for You?.......................................... 2
Could the Value of Your Investment in This Fund Fluctuate?..... 3
Fees and Expenses.............................................. 4
Fund Investments............................................... 5
Fund Management................................................ 7
Using Mutual Funds in an Investment Program.................... 9
How to Invest..................................................10
Important Information About Purchases and Redemptions..........13
Exchanges......................................................14
Shareholder Information........................................14
Financial Highlights...........................................18
Appendix A ....................................................19
Appendix B ....................................................21

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective  of capital  appreciation  with  current  income as a
secondary  objective.  We will  attempt to  achieve  the  Fund's  objective  by
investing  the great  majority  of the  Fund's  assets  in  stocks  of  foreign
countries.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The  primary  risks of  investing  in this Fund are market risk and the risk of
foreign investing.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

As with other mutual funds,  losing money is an additional risk associated with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are looking for long-term growth.

                                       2
<PAGE>

|X| You are willing to accept moderate to high risk.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.
|X| You are looking for an  investment  in foreign  securities  to balance your
    domestic securities portfolio.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of five years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or  decrease.  Because the risks in  international  markets as a whole
tend to be higher  than in the United  States,  the Fund is expected to be more
volatile than the average  domestic  equity mutual fund. The bar chart shown on
the next page  illustrates the Fund's  volatility and performance  from year to
year for the past ten years.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1988*               5.10
     1989               17.36
     1990               -9.30
     1991               13.40
     1992               -0.15
     1993               39.81
     1994                2.69
     1995                8.29
     1996               19.15
     1997                9.04

     *FUND BEGAN OPERATIONS ON JULY 11, 1988.

     THE INTERNATIONAL  FUND'S TOTAL RETURN FOR THE SIX-MONTH PERIOD ENDED JUNE
     30, 1998, WAS 11.54%.

                                       3
<PAGE>

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 13.84%  (quarter  ending  December  31,  1993) and the lowest total
return for a quarter was -18.80% (quarter ending September 30, 1997).

The table below shows how the Fund's  average  annual  returns for the one- and
five-year  periods and the life of the Fund  compared to those of a broad-based
securities market index. Remember,  historical performance does not necessarily
indicate what will happen in the future.

===============================================================================
  Average Annual Total Returns                                  Since Fund's
  (for the period ending            Past        Past            Inception on
  December 31, 1997)               1 Year      5 Years         July 11, 1988
===============================================================================
  International Fund                9.04%      15.10%              10.44%
- -------------------------------------------------------------------------------
  Morgan Stanley Capital
     Index (MSCI) EAFE*             1.78%      11.39%               5.41%
===============================================================================
  * MORGAN  STANLEY  CAPITAL  INDEX  (MSCI)  EAFE IS AN  UNMANAGED  INDEX WHICH
    REFLECTS THE MOVEMENTS OF STOCK MARKETS IN EUROPE,  AUSTRALIA,  AND THE FAR
    EAST BY  REPRESENTING A BROAD SELECTION OF  DOMESTICALLY  LISTED  COMPANIES
    WITHIN EACH MARKET.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 2 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu, press 1
again for prices and returns. Then, press 52# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                      Intl

                                     TICKER
                                     SYMBOL
                                     USIFX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "Intl." If you prefer to obtain  this  information  from an on-line
computer service, you can do so by using the ticker symbol "USIFX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

                                       4
<PAGE>

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

             Management Fees                            .75%
             Distribution (12b-1) Fees                  None
             Other Expenses                             .30%
                                                       _____
             Total Annual Fund Operating Expenses      1.05%
                                                       =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                   1 year............... $  107
                   3 years..............    334
                   5 years..............    579
                  10 years..............  1,283

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal  investment  strategy is to invest at least 80% of
        the Fund's assets in equity securities of foreign companies. We use the
        term "equity  securities" to include common stocks,  preferred  stocks,
        securities  convertible into common stocks,  and securities which carry
        the right to buy common stocks.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

                                       5
<PAGE>

   Q    What is considered to be a "foreign company?"

   A    A company is a foreign  company if it is organized  under the laws of a
        foreign country;  and it must also have one of the following additional
        characteristics:

        o the principal  trading market for the stock is in a foreign  country;
          or
        o at least 50% of its revenues or profits are derived  from  operations
          within foreign countries; or
        o at least 50% of its assets are located within foreign countries.

        Because  the Fund's  assets  will be  invested  in  foreign  securities
        purchased in foreign or U.S.  markets,  including  American  Depositary
        Receives  (ADRs) and Global  Depositary  Receipts  (GDRs),  the Fund is
        subject to the following risks:

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

        [CAUTION LIGHT]
        FOREIGN INVESTING.  Investing in foreign securities poses unique risks:
        currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
        increased  price  volatility;  exchange  control  regulations;  foreign
        ownership  limits;  different  accounting,  reporting,  and  disclosure
        requirements;  and  difficulties in obtaining legal  judgments.  In the
        past,  equity and debt  instruments  of foreign  markets have been more
        volatile than equity and debt instruments of U.S. securities markets.

        o EMERGING MARKETS RISK. A country that is in the initial stages of its
          industrial  cycle is  considered to be an emerging  markets  country.
          Investments  in  developing  countries  involve  exposure to economic
          structures  that are  generally  less  diverse and mature than in the
          United States and to political  systems which may be less stable.  In
          the past,  markets of  developing  countries  have been more volatile
          than the markets of developed countries.

        o POLITICAL RISK. Political risk includes a greater potential for coups
          d'etat, revolts, and expropriation by governmental organizations. For
          example, we may invest the Fund's assets in Eastern Europe and former
          states  of the  Soviet  Union  (also  known  as the  Commonwealth  of
          Independent  States or CIS).  These  countries  were under  communist
          systems  which  had  nationalized  private  industry.   There  is  no
          guarantee that  nationalization may not occur again in this region or
          others in which we may invest the Fund's  assets,  in which case,  we
          may  lose  all or part of the  Fund's  investment  in that  country's
          issuers.

                                       6
<PAGE>

   Q    Will the Fund's assets be invested in any other securities?

   A    We may invest the remainder of the Fund's  assets in equity  securities
        of  companies  that  meet  any  of the  criteria  as  described  in the
        definition of a foreign  company and in  high-quality,  short-term debt
        instruments having the following characteristics:

        o remaining  maturities  of less than one year that have been issued or
          guaranteed as to both  principal and interest by the U.S.  Government
          or its agencies or instrumentalities, and
        o repurchase agreements collateralized by such securities.

        As  a  temporary   defensive  measure  because  of  market,   economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    Are there any  restrictions as to the types of businesses or operations
        of companies in which the Fund's assets may be invested?

   A    No, there are no  restrictions  except that we may not invest more than
        25% of the Fund's total assets in one industry.  The Fund's investments
        will be diversified in at least four or more countries.

        We  believe  the  Fund   combines  the   advantages  of  investment  in
        diversified international markets with the convenience and liquidity of
        a mutual fund based in the United States.

   Q    How do the portfolio managers decide which securities to buy and sell?

   A    They review countries and regions for economic and political  stability
        as well as future prospects.  Then they research  individual  companies
        looking  for  favorable  valuations,   growth  prospects,   quality  of
        management,  and industry outlook.  Securities are sold if they believe
        they  are   overvalued   or  if  the  economic  or  political   outlook
        significantly deteriorates.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

                                       7
<PAGE>

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average  net assets for the fiscal year ended May 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

[PHOTOGRAPH OF PORTFOLIO MANAGERS]
                       FROM L TO R: ALBERT C. SEBASTIAN,
                  DAVID G. PEEBLES, AND W. TRAVIS SELMIER, II

David G. Peebles, Vice President of Equity Investments since February 1988, has
managed or  co-managed  the Fund since its  inception  in July 1988.  He has 32
years investment  management experience and has worked for us for 14 years. Mr.
Peebles earned the Chartered Financial Analyst (CFA) designation in 1971 and is
a member of the Association for Investment  Management and Research (AIMR), the
San Antonio  Financial  Analysts  Society,  Inc. (SAFAS) and the  International
Society  of  Financial  Analysts  (ISFA).  He holds an MBA and a BS from  Texas
Christian University.

Albert C.  Sebastian  and W. Travis  Selmier,  II,  co-manage the Fund with Mr.
Peebles. Mr. Peebles coordinates the activities of the Managers.

                                       8
<PAGE>

Albert C.  Sebastian,  Assistant  Vice  President of Equity  Investments  since
September  1996,  has  co-managed  the Fund since October 1996. He has 14 years
investment  management  experience  and has worked for us for seven years.  Mr.
Sebastian earned the CFA designation in 1989 and is a member of AIMR, SAFAS and
ISFA. He holds an MBA from the  University of Michigan and a BA from Holy Cross
College, Massachusetts.

W. Travis Selmier,  II,  Assistant Vice President of Equity  Investments  since
September  1996,  has  co-managed  the Fund since October 1996. He has 11 years
investment  management  experience  and has worked for us for seven years.  Mr.
Selmier earned the CFA  designation in 1990 and is a member of AIMR,  SAFAS and
ISFA. He holds an MBA from Indiana  University,  a Certificate  of  Proficiency
from Sophia University  Japanese Language  Institute,  Japan, and a BA from the
University of California at Santa Barbara.

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

For  example,  assume you wish to diversify  internationally.  You could divide
your investments between the Emerging Markets,  Gold,  International,  or World
Growth Funds and holdings in domestic funds. This would give you

                                       9
<PAGE>

exposure to the  opportunities of investments in many foreign  countries and to
currency changes.  This is just one way you could combine funds to fit your own
risk and reward goals.

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 21. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy  Fund,  the USAA  Family of Funds  provides  a broad  range of choices
covering  just  about  any   investor's   investment   objectives.   Our  sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 21 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your purchase of up to four to six weeks.

                                      10
<PAGE>

Furthermore,  a bank charge may be assessed in the clearing process, which will
be deducted from the amount of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA International Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

                                      11
<PAGE>

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the

                                      12
<PAGE>

name(s) on the  account  registration,  and (3) social  security  number or tax
identification number for the account registration.  In addition, we record all
telephone   communications   with  you  and  send   confirmations   of  account
transactions  to the address of record.  If you were issued stock  certificates
for your shares, redemption by telephone, fax, or telegram is not available.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

                                      13
<PAGE>

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired are
offered  in  your  state  of  residence.   The  Fund's   transfer   agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 12.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In

                                      14
<PAGE>

most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

Taxes

FEDERAL

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the

                                      15
<PAGE>

Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

FOREIGN

The Fund may be subject to foreign withholding or other taxes. If more than 50%
of the  value of the  Fund's  total  assets at the  close of any  taxable  year
consists of securities of foreign  corporations,  the Fund may file an election
with the Internal Revenue Service (the Foreign  Election) that would permit you
to take a credit (or a deduction) for foreign income taxes paid by the Fund. If
the  Foreign  Election  is made,  you would  include in your gross  income both
dividends  received from the Fund and foreign income taxes paid by the Fund. As
a shareholder  of the Fund,  you would be entitled to treat the foreign  income
taxes withheld as a credit against your U.S.  federal income taxes,  subject to
the  limitations  set forth in the Code with  respect to the foreign tax credit
generally.  Alternatively,  you could, if it were to your advantage,  treat the
foreign  income taxes  withheld as an itemized  deduction in computing  taxable
income  rather than as a tax credit.  You will not be entitled to a foreign tax
credit for taxes  paid to certain  countries;  however,  if the Fund  otherwise
qualifies  for the  Foreign  Election,  a  deduction  for  such  taxes  will be
available to  shareholders  of the Fund. It is  anticipated  that the Fund will
make the Foreign Election.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares. A portion of these
dividends may qualify for the 70%  dividends  received  deduction  available to
corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

                                      16
<PAGE>

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                   EIGHT-MONTH
                                   YEAR ENDED MAY 31,              PERIOD ENDED
                                   -----------------                 MAY 31,
                        1998       1997       1996        1995        1994
                        ----       ----       ----        ----        ----
Net asset value at
  beginning of period $  21.03   $  18.71   $  15.78    $  16.36    $  14.48
Net investment income      .19        .15        .17         .10         -
Net realized and
  unrealized gain         2.41       2.87       2.92         .29        2.23
Distributions from net
  investment income       (.12)      (.20)      (.07)        -           -
Distributions of realized
  capital gains          (1.57)      (.50)      (.09)       (.97)       (.35)
                      --------   --------   --------    --------    --------
Net asset value at
  end of period       $  21.94   $  21.03   $  18.71    $  15.78    $  16.36
                      ========   ========   ========    ========    ========
Total return (%)*        13.29      16.72      19.71        2.49       15.67
Net assets at end of
  period (000)        $628,655   $616,576   $417,995    $346,033    $184,792
Ratio of expenses to
  average net assets (%)  1.05       1.09       1.19        1.17        1.31(a)
Ratio of net investment
  income to average net
  assets (%)               .87        .79       1.04         .81         .04(a)
Portfolio turnover (%)   42.97      46.03      70.01       64.30       44.39
- ------------
  * Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.

                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      19
<PAGE>

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

                                      20
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      21
<PAGE>
                                     NOTES
<PAGE>
                                     NOTES
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                               World Growth Fund

                               is included herein

<PAGE>
                             USAA WORLD GROWTH FUND

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?....... 2
Main Risks of Investing in This Fund............................. 2
Is This Fund for You?............................................ 3
Could the Value of Your Investment in This Fund Fluctuate?....... 3
Fees and Expenses................................................ 4
Fund Investments................................................. 5
Fund Management.................................................. 8
Using Mutual Funds in an Investment Program......................10
How to Invest....................................................11
Important Information About Purchases and Redemptions............14
Exchanges........................................................15
Shareholder Information..........................................15
Financial Highlights.............................................19
Appendix A ......................................................20
Appendix B ......................................................22

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective of capital  appreciation.  We will attempt to achieve
the Fund's  objective by investing the Fund's assets mostly in a mix of foreign
and domestic stocks.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing  in this Fund are market risk and the risks of
foreign investing.

o   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will  decline  due to falls in the  stock  market,  reducing  the  value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

o   FOREIGN INVESTING RISK involves the possibility that the Fund's investments
    in foreign stock will decrease due to currency exchange rate  fluctuations,
    increased  price  volatility,  uncertain  political  conditions,  and other
    factors.

Other risks of the Fund described  later in the Prospectus  include the risk of
investing in real estate investment trusts. As with other mutual funds,  losing
money is an additional risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

                                       2
<PAGE>

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are looking for long-term growth.
|X| You are willing to accept moderate to high risk.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of five years or more.
|X| You are unwilling to take greater risk for long-term goals.
|X| You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or decrease.  Because the Fund invests in foreign markets, the Fund is
expected to be more volatile than the average equity mutual fund. The bar chart
shown below illustrates the Fund's volatility and performance from year to year
over the life of the Fund.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1992*               2.90
     1993               24.03
     1994                 .64
     1995               12.85
     1996               19.08
     1997               12.87

     *FUND BEGAN OPERATIONS ON OCTOBER 2, 1992.

     THE WORLD GROWTH FUND'S TOTAL RETURN FOR THE  SIX-MONTH  PERIOD ENDED JUNE
     30, 1998, WAS 12.91%.

                                       3
<PAGE>

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 12.02%  (quarter  ending June 30, 1997) and the lowest total return
for a quarter was -6.99% (quarter ending December 31, 1997).

The table on the next page shows how the Fund's  average annual returns for the
one- and  five-year  periods  and the life of the Fund  compared  to those of a
broad-based securities market index. Remember,  historical performance does not
necessarily indicate what will happen in the future.

===============================================================================
  Average Annual Total Returns                                Since Fund's
  (for the period ending            Past         Past         Inception on
  December 31, 1997)               1 Year       5 Years      October 1, 1992
===============================================================================
  World Growth Fund                12.87%       13.62%           13.51%
- -------------------------------------------------------------------------------
  Morgan Stanley Capital
   Index (MSCI) World *            15.76%       15.34%           14.50%
===============================================================================
  * MORGAN  STANLEY  CAPITAL  INDEX (MSCI)  WORLD IS AN  UNMANAGED  INDEX WHICH
    REFLECTS  THE  MOVEMENTS  OF WORLD STOCK  MARKETS BY  REPRESENTING  A BROAD
    SELECTION OF DOMESTICALLY LISTED COMPANIES WITHIN EACH MARKET.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 4 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price and return  information for this Fund, you may
call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu, press 1
again for prices and returns. Then, press 54# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                     WldGr

                                     TICKER
                                     SYMBOL
                                     USAWX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "WldGr." If you prefer to obtain this  information  from an on-line
computer service, you can do so by using the ticker symbol "USAWX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

                                       4
<PAGE>

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and  transfer  agent fees.  The  figures on the next page show actual  expenses
during  the past  fiscal  year  ended May 31,  1998,  and are  calculated  as a
percentage of average net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

           Management Fees                         .75%
           Distribution (12b-1) Fees               None
           Other Expenses                          .38%
                                                  -----
           Total Annual Fund Operating Expenses   1.13%
                                                  =====

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                    1 year............ $  115
                    3 years...........    359
                    5 years...........    622
                   10 years...........  1,375

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal investment strategy is to invest the Fund's assets
        primarily in equity securities of both foreign and domestic issuers and
        in real  estate  investment  trusts  (REITs).  We use the term  "equity
        securities"  to include  common stocks,  preferred  stocks,  securities
        convertible into common stocks, and securities which carry the right to
        buy common stocks.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's operations. Stock markets tend to run in cycles, with periods

                                       5
<PAGE>

when stock prices  generally go up, known as "bull"  markets,  and periods when
stock  prices  generally  go  down,  referred  to  as  "bear"  markets.  Equity
securities tend to go up and down more than bonds.

[CAUTION LIGHT]
REITS.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated with the direct  ownership of real estate.  REITs are dependent upon
the  capabilities of the REIT  manager(s),  have limited  diversification,  and
could be significantly impacted by changes in tax laws.

   Q    Why are foreign and domestic stocks combined in the Fund's portfolio?

   A    We believe  that  international  diversification  may have a  balancing
        impact with regard to domestic  investments  during  periods of adverse
        economic and market  conditions in the United  States.  Therefore,  the
        Fund   combines  the   advantages   of   investing  in  a   diversified
        international  market and domestic  market,  with the  convenience  and
        liquidity of a mutual fund based in the United States.

   Q    What are the potential  risks  associated  with  investments in foreign
        securities?

   A    Because  the Fund's  assets  will be  invested  in  foreign  securities
        purchased in foreign or U.S.  markets,  including  American  Depositary
        Receipts  (ADRs) and Global  Depositary  Receipts  (GDRs),  the Fund is
        subject to the following risks:

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A NON-U.S.
                                   BANK WHICH
                                ISSUES A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

        [CAUTION LIGHT]
        FOREIGN INVESTING.  Investing in foreign securities poses unique risks:
        currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
        increased  price  volatility;  exchange  control  regulations;  foreign
        ownership  limits;  different  accounting,  reporting,  and  disclosure
        requirements;  and  difficulties in obtaining legal  judgments.  In the
        past,  equity and debt  instruments  of foreign  markets have been more
        volatile than equity and debt instruments of U.S. securities markets.

        o EMERGING MARKETS RISK. A country that is in the initial stages of its
          industrial  cycle is  considered to be an emerging  markets  country.
          Investments  in  developing  countries  involve  exposure to economic
          structures  that are  generally  less  diverse and mature than in the
          United States and to political  systems which may be less stable.  In
          the past,  markets of  developing  countries  have been more volatile
          than the markets of developed countries.

                                       6
<PAGE>

        o POLITICAL RISK. Political risk includes a greater potential for coups
          d'etat, revolts, and expropriation by governmental organizations. For
          example, we may invest the Fund's assets in Eastern Europe and former
          states  of the  Soviet  Union  (also  known  as the  Commonwealth  of
          Independent  States or CIS).  These  countries  were under  communist
          systems  which  had  nationalized  private  industry.   There  is  no
          guarantee that  nationalization may not occur again in this region or
          others in which we may invest the Fund's  assets,  in which case,  we
          may  lose  all or part of the  Fund's  investment  in that  country's
          issuers.

   Q    Will the Fund's assets be invested in any other securities?

   A    We may  invest the  remainder  of the  Fund's  assets in  high-quality,
        short-term debt instruments having the following characteristics:

        o remaining  maturities  of less than one year that have been issued or
          guaranteed as to both  principal and interest by the U.S.  Government
          or its agencies or instrumentalities, and
        o repurchase agreements collateralized by such securities.

        As  a  temporary   defensive  measure  because  of  market,   economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality,  short-term debt instruments,  which may result
        in the Fund not achieving its investment  objective  during the time it
        is in this temporary defensive posture.

   Q    Are there any restrictions as to the types of business or operations of
        companies in which the Fund's assets may be invested?

   A    No, there are no  restrictions  except that we may not invest more than
        25% of the Fund's total  assets in one  industry.  Under normal  market
        conditions,  the Fund's  investments  will be  diversified  in at least
        three countries.

   Q    How do the  portfolio  managers  for the foreign  portion of the Fund's
        portfolio decide which foreign securities to buy and sell?

   A    They review countries and regions for economic and political  stability
        as well as future prospects.  Then they research  individual  companies
        looking  for  favorable  valuations,   growth  prospects,   quality  of
        management,  and industry outlook.  Securities are sold if they believe
        they  are   overvalued   or  if  the  economic  or  political   outlook
        significantly deteriorates.

                                       7
<PAGE>

   Q    How does the portfolio  manager for the domestic  portion of the Fund's
        portfolio decide which domestic securities to buy and sell?

   A    In selecting stocks for the domestic  portion of the Fund's  portfolio,
        he uses a combination of a value-oriented and growth approach.

        With  respect  to  his  selection  of  stocks  using  a  value-oriented
        approach,  he  appraises a stock's  price in relation to the  company's
        earnings,  cash flow, book value, and yield. He also considers  various
        qualitative  factors  such  as  the  number  of  shares  the  company's
        management  owns,  the  attitude  of  investors  in general  toward the
        company, and the quality of management.

        For stocks using the growth-oriented  approach, he concentrates more on
        the growth characteristics of the company.

        He uses the same criteria in deciding  which  securities  to sell.  For
        example,  when a  company's  shares  sell  well  above  their  relative
        historical levels, he may decide to sell the stock.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 20.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average  net assets for the fiscal year ended May 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Transactions

USAA Brokerage Services,  our discount brokerage service, may execute purchases
and sales of equity securities for the Fund's portfolio.  The Board of Trustees
has adopted  procedures to ensure that any  commissions  paid to USAA Brokerage
Services are reasonable and fair.

                                       8
<PAGE>

Portfolio Managers

The following individuals are primarily responsible for managing the Fund:

[PHOTOGRAPH OF PORTFOLIO MANAGERS]
                FROM L TO R: R. DAVID ULLOM, DAVID G. PEEBLES,
                 ALBERT C. SEBASTIAN, AND W. TRAVIS SELMIER, II

David G. Peebles, Vice President of Equity Investments since February 1988, has
managed or  co-managed  the Fund since its  inception  in July 1988.  He has 33
years investment  management experience and has worked for us for 14 years. Mr.
Peebles earned the Chartered Financial Analyst (CFA) designation in 1971 and is
a member of the Association for Investment  Management and Research (AIMR), the
San Antonio  Financial  Analysts Society,  Inc. (SAFAS),  and the International
Society  of  Financial  Analysts  (ISFA).  He holds an MBA and a BS from  Texas
Christian University.

Albert C. Sebastian and W. Travis Selmier, II, co-manage the Fund's investments
in foreign securities with Mr. Peebles.  Mr. Peebles coordinates the activities
of the Managers.

Albert C.  Sebastian,  Assistant  Vice  President of Equity  Investments  since
September  1996,  has  co-managed  the Fund since October 1996. He has 14 years
investment  management  experience  and has worked for us for seven years.  Mr.
Sebastian earned the CFA designation in 1989 and is a member of AIMR, SAFAS and
ISFA. He holds an MBA from the  University of Michigan and a BA from Holy Cross
College, Massachusetts.

W. Travis Selmier,  II,  Assistant Vice President of Equity  Investments  since
September  1996,  has  co-managed  the Fund since October 1996. He has 11 years
investment  management  experience  and has worked for us for seven years.  Mr.
Selmier earned the CFA  designation in 1990 and is a member of AIMR,  SAFAS and
ISFA. He holds an MBA from Indiana  University,  a Certificate  of  Proficiency
from Sophia University  Japanese Language  Institute,  Japan, and a BA from the
University of California at Santa Barbara.

                                       9
<PAGE>

R. David Ullom,  Assistant Vice President of Equity Investments since September
1994,  has managed the Fund's  investments  in domestic  stocks since  February
1995. He has 23 years  investment  management  experience and has worked for us
for 12 years.  Mr. Ullom earned the CFA  designation in 1980 and is a member of
AIMR and SAFAS. He holds an MBA from Washington University,  Missouri, and a BS
from Oklahoma State University.

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

For  example,  assume you wish to diversify  internationally.  You could divide
your investments between the Emerging Markets,  International,  or World Growth
Funds and  holdings  in  domestic  funds.  This would give you  exposure to the
opportunities of investments in many foreign countries and to currency changes.
This is just one way you could  combine  funds to fit your own risk and  reward
goals.

                                      10
<PAGE>

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 22. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy  Fund,  the USAA  Family of Funds  provides  a broad  range of choices
covering  just  about  any   investor's   investment   objectives.   Our  sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 22 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

                                      11
<PAGE>

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA World Growth Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

                                      12
<PAGE>

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the

                                      13
<PAGE>

following  information:  (1) USAA number or account number,  (2) the name(s) on
the account registration,  and (3) social security number or tax identification
number for the  account  registration.  In  addition,  we record all  telephone
communications  with you and send confirmations of account  transactions to the
address of record.  If you were  issued  stock  certificates  for your  shares,
redemption by telephone, fax, or telegram is not available.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

                                      14
<PAGE>

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock  certificate  form and the shares to be acquired are
offered  in  your  state  of  residence.   The  Fund's   transfer   agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Portfolio securities, except as otherwise noted, traded primarily on a domestic
securities  exchange  are  valued  at the last  sales  price on that  exchange.
Portfolio  securities  traded  primarily on foreign  securities  exchanges  are
generally valued at the closing values of such securities on the exchange where
primarily  traded.  If no sale is  reported,  the  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the

                                      15
<PAGE>

same time the prices of certain securities held by the Fund are determined.  In
most cases,  events  affecting  the values of portfolio  securities  that occur
between the time their prices are determined and the close of normal trading on
the NYSE on a day the Fund's NAV is  calculated  will not be  reflected  in the
Fund's NAV. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Trustees,  will use all  relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
distribution usually occurs within 45 days of the May 31 fiscal year end, which
would be  somewhere  around the middle of July.  The Fund will make  additional
payments to shareholders,  if necessary, to avoid the imposition of any federal
income or excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

                                      16
<PAGE>

Taxes

FEDERAL

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

FOREIGN

The Fund may be subject to foreign withholding or other taxes. If more than 50%
of the  value of the  Fund's  total  assets at the  close of any  taxable  year
consists of securities of foreign  corporations,  the Fund may file an election
with the Internal Revenue Service (the Foreign  Election) that would permit you
to take a credit (or a deduction) for foreign income taxes paid by the Fund. If
the  Foreign  Election  is made,  you would  include in your gross  income both
dividends  received from the Fund and foreign income taxes paid by the Fund. As
a shareholder  of the Fund,  you would be entitled to treat the foreign  income
taxes withheld as a credit against your U.S.  federal income taxes,  subject to
the  limitations  set forth in the Code with  respect to the foreign tax credit
generally.  Alternatively,  you could, if it were to your advantage,  treat the
foreign  income taxes  withheld as an itemized  deduction in computing  taxable
income  rather than as a tax credit.  You will not be entitled to a foreign tax
credit for taxes  paid to certain  countries;  however,  if the Fund  otherwise
qualifies  for the  Foreign  Election,  a  deduction  for  such  taxes  will be
available to  shareholders  of the Fund. It is  anticipated  that the Fund will
make the Foreign Election.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares. A portion of these
dividends may qualify for the 70%  dividends  received  deduction  available to
corporations.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

                                      17
<PAGE>

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      18
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                   EIGHT-MONTH
                                    YEAR ENDED MAY 31,             PERIOD ENDED
                                    ------------------                MAY 31,
                         1998       1997        1996        1995       1994
                         ----       ----        ----        ----       ----
Net asset value at
  beginning of period  $  16.84   $  15.50    $  12.96    $  12.71   $  11.80
Net investment income       .11        .11         .12         .07        .04(b)
Net realized and
  unrealized gain          2.51       2.28        2.73        .46         .93
Distributions from net
  investment income        (.08)      (.14)       (.08)        -         (.01)
Distributions of realized
  capital gains           (1.02)      (.91)       (.23)       (.28)      (.05)
                       --------   --------    --------    --------   --------
Net asset value at
  end of period        $  18.36   $  16.84    $  15.50    $  12.96   $  12.71
                       ========   ========    ========    ========   ========
Total return (%)*         16.29      16.52       22.43        4.26       8.25
Net assets at end of
  period (000)         $356,880   $306,799    $267,192    $200,745   $143,367
Ratio of expenses to
  average net assets (%)   1.13       1.20        1.27        1.28       1.28(a)
Ratio of net investment
  income to average net
  assets (%)                .64        .63         .96         .69        .42(a)
Portfolio turnover (%)     5.04      50.02       60.97       58.88      37.64
- -----------------
  * Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.
(b) Calculated using weighted average shares.

                                      19
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

FORWARD CURRENCY CONTRACTS

The Fund may hold securities  denominated in foreign  currencies.  As a result,
the value of the  securities  will be affected by changes in the exchange  rate
between the dollar and foreign currencies.  In managing currency exposure,  the
Fund may enter into forward currency  contracts.  A forward  currency  contract
involves an agreement  to purchase or sell a specified  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar  price of the
security.

REPURCHASE AGREEMENTS

We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      20
<PAGE>

CONVERTIBLE SECURITIES

We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert the security into common  stock.  The value of
convertible  securities  depends  partially  on interest  rate  changes and the
credit  quality  of the  issuer.  Because a  convertible  security  affords  an
investor the opportunity, through its conversion feature, to participate in the
capital  appreciation of the underlying  common stock, the value of convertible
securities also depends on the price of the underlying common stock.

                                      21
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      22
<PAGE>
                                     NOTES
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                                   GNMA Trust

                               is included herein

<PAGE>
                                USAA GNMA TRUST

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?...... 2
Main Risks of Investing in This Fund............................ 2
Is This Fund for You?........................................... 3
Could the Value of Your Investment in This Fund Fluctuate?...... 3
Fees and Expenses............................................... 5
Fund Investments................................................ 6
Fund Management................................................. 9
Using Mutual Funds in an Investment Program.....................10
How to Invest...................................................11
Important Information About Purchases and Redemptions...........14
Exchanges.......................................................14
Shareholder Information.........................................15
Financial Highlights............................................18
Appendix A .....................................................19
Appendix B .....................................................21

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective of providing investors a high level of current income
consistent  with  preservation  of  principal.  We will  attempt to achieve the
Fund's  objective by investing the Fund's  assets in  securities  backed by the
full faith and credit of the U.S.  Government.  Most of the Fund's  investments
will consist of Government  National Mortgage  Association  (GNMA) pass through
certificates, which represent ownership in a pool of mortgage loans or a single
mortgage loan.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The  primary  risks of  investing  in this  Fund  are  interest  rate  risk and
prepayment risk.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline due to an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

o   PREPAYMENT RISK involves the possibility  that  prepayments of mortgages in
    the Fund's  portfolio will require  reinvestment  at lower interest  rates,
    resulting in less interest income to the Fund.

As with other mutual funds,  losing money is an additional risk associated with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

                                       2
<PAGE>

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the Federal Deposit  Insurance  Corporation or any
other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks that you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You are looking for current income.
|X| You are willing to accept low to moderate risk.
|X| You are seeking an appropriate investment for an IRA, through a 401(k) plan
    or 403(b) plan, or other tax-sheltered account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You are unable or reluctant to invest for a period of three years or more.
|X| You need an investment that provides tax-free income.
|X| Your primary goal is to maximize long-term growth.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment  in the GNMA Trust will
likely  increase or decrease.  While the value of the  securities  in which the
GNMA Trust invests have  historically  involved  little credit risk, the market
value of these  securities is not guaranteed and will fluctuate  inversely with
changes in the general level of interest rates.  The value of these  securities
will  increase when  interest  rates  decline and decrease when interest  rates
rise. The bar chart shown on the next page  illustrates  the Fund's  volatility
and performance from year to year over the life of the Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1991*             13.38
     1992               6.09
     1993               7.11
     1994               -.02
     1995              16.76
     1996               2.94
     1997               9.51

     *FUND BEGAN OPERATIONS ON FEBRUARY 1, 1991.

     THE GNMA  TRUST'S  TOTAL  RETURN FOR THE  SIX-MONTH  PERIOD ENDED JUNE 30,
     1998, WAS 4.53%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 5.57%  (quarter  ending  September  30,  1991) and the lowest total
return for a quarter was -2.42% (quarter ending March 31, 1996).

The table below shows how the Fund's  average  annual  returns for the one- and
five-year  periods and the life of the Fund  compared to those of a broad-based
securities market index. Remember,  historical performance does not necessarily
indicate what will happen in the future.

===============================================================================
  Average Annual Total Returns                                 Since Fund's
  (for the period ending             Past        Past          Inception on
  December 31, 1997)                1 Year      5 Years      February 1, 1991
===============================================================================
  GNMA Trust                         9.51%       7.10%              7.92%
- -------------------------------------------------------------------------------
  Lehman Brothers
    GNMA 30-Year Index*              9.59%       7.27%              8.38%
===============================================================================
*  LEHMAN BROTHERS GNMA 30-YEAR INDEX IS AN UNMANAGED INDEX OF FUNDS SIMILAR TO
   THE TRUST.

                                       4
<PAGE>

YIELD

                                  YIELD IS THE
                                 ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                                SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                  SHARE PRICE.

All mutual  funds must use the same formula to  calculate  yield.  The Fund may
advertise  performance in terms of a 30-day yield quotation.  The Fund's 30-day
yield for the period ended December 31, 1997, was 6.52%.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                  THEN 5 8 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, and return information for this Fund,
you may call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu,
press 1 again for prices,  yields, and returns.  Then, press 58# when asked for
the Fund Code.

                                   NEWSPAPER
                                    SYMBOL
                                     GNMA

                                    TICKER
                                    SYMBOL
                                     USGNX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "GNMA." If you prefer to obtain  this  information  from an on-line
computer service, you can do so by using the ticker symbol "USGNX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended May 31, 1998,  and are  calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

             Management Fees                           .125%
             Distribution (12b-1) Fees                  None
             Other Expenses                            .177%
                                                       -----
             Total Annual Fund Operating Expenses      .302%
                                                       =====

                                       5
<PAGE>

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                    1 year.............. $ 31
                    3 years.............   97
                    5 years.............  170
                   10 years.............  383

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal  investment strategy is to invest the Fund's total
        assets primarily in GNMA pass through certificates.

   Q    What are GNMA certificates?

   A    GNMA certificates  represent ownership in a pool of mortgage loans or a
        single  mortgage  loan.  Each  mortgage  loan is either  insured by the
        Federal   Housing   Administration   or   guaranteed  by  the  Veterans
        Administration.  Once  approved  by  GNMA,  each  mortgage  or  pool of
        mortgages is  additionally  guaranteed by GNMA as to the timely payment
        of  principal  and  interest  (regardless  of  whether  the  mortgagors
        actually  make their  payments).  The  guarantee  represents  a general
        obligation  of the U.S.  Treasury.  Therefore,  GNMA  certificates  are
        guaranteed by the full faith and credit of the U.S. Government.

   Q    What is the credit quality of these securities?

   A    Securities  which are  backed by the full  faith and credit of the U.S.
        Government  (meaning  that the  payment of  principal  and  interest is
        guaranteed by the U.S.  Treasury)  are  considered to be of the highest
        credit quality available.

                                       6
<PAGE>

   Q    How do GNMA securities differ from conventional bonds?

   A    GNMA  securities  differ from  conventional  bonds in that principal is
        paid back to the  certificate  holders over the life of the loan rather
        than at maturity.  As a result, the Fund will receive monthly scheduled
        payments of principal and interest.  Additionally, the Fund may receive
        unscheduled  principal  payments,  which  represent  prepayments on the
        underlying mortgages.

        Because  the  Fund  will  reinvest  these   scheduled  and  unscheduled
        principal  payments  at a time when the  current  interest  rate may be
        higher or lower than the Fund's  current  yield,  an  investment in the
        Fund may not be an effective  means of "locking in" long-term  interest
        rates.

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.

   Q    What is the average maturity of a GNMA certificate?

   A    GNMA certificates  evidence interest in a pool of underlying  mortgages
        (or a single  mortgage),  which  generally have maximum lives of either
        15, 20, 30, or 40 years. However, due to both scheduled and unscheduled
        principal payments,  GNMA certificates have a shorter average life and,
        therefore,  have less  principal  volatility  than a bond of comparable
        maturity.

        Since the  prepayment  rates will vary  widely,  it is not  possible to
        accurately  predict the average life of a particular GNMA pool,  though
        it will be shorter than the stated final maturity. Because the expected
        average life is a better indicator of the maturity  characteristics  of
        GNMA  certificates,   principal   volatility  and  yield  may  be  more
        comparable to 10-year Treasury bonds.

[CAUTION LIGHT]
PREPAYMENT  RISK.  Mortgagors may generally pay off mortgages  without  penalty
before the due date.  When mortgaged  property is sold,  which can occur at any
time for a variety of reasons, the old mortgage is usually prepaid.  Also, when
mortgage interest rates fall far enough to make refinancing

                                       7
<PAGE>

attractive, prepayments tend to accelerate. Prepayments require reinvestment of
the principal at the then-current level of interest rates, which are often at a
lower level than when the mortgages were  originally  issued.  Reinvestment  at
lower rates  tends to reduce the  interest  payments  received by the Fund and,
therefore,  the size of the dividend  payments  available to  shareholders.  If
reinvestment occurs at a higher level of interest rates, the opposite effect is
true.

   Q    Will  the  Fund's  assets  be  invested  in any  other  types  of  U.S.
        Government securities?

   A    Yes.  We may  invest  up to 35% of the  Fund's  total  assets  in other
        obligations  that have been  backed by the full faith and credit of the
        U.S.  Government,  including U.S. Treasury bills,  notes and bonds, and
        securities  issued by U.S.  Government  agencies and  instrumentalities
        such as, but not limited to:

        o Federal Housing Administration,
        o Department of Housing and Urban Development,
        o Export-Import Bank,
        o Farmer's Home Administration,
        o General Services Administration,
        o Maritime Administration,
        o Small Business Administration, and
        o repurchase agreements collateralized by such obligations.

        We will not invest the Fund's assets in any U.S. Government  securities
        which do not carry the full  faith and  credit of the U.S.  Government,
        such as Fannie Mae (FNMA) or Freddie Mac (FHLMC) securities.

        As  a  temporary   defensive  measure  because  of  market,   economic,
        political, or other conditions,  we may invest up to 100% of the Fund's
        assets in high-quality, short-term debt instruments which may result in
        the Fund not achieving its investment  objective  during the time it is
        in this temporary defensive posture.

   Q    How does the portfolio manager decide which securities to buy and sell?

   A    He manages the Fund to generate high total return with strong  emphasis
        on current income. Since all the securities the Fund may own are backed
        by the full faith and credit of the United  States,  credit  quality is
        not a concern. Of particular importance for

                                       8
<PAGE>

        mortgage securities is prepayment risk. He generally tries to diversify
        this risk by buying different kinds of mortgage securities which should
        have different prepayment  characteristics.  When weighing our decision
        to buy or sell a security,  we strive to balance the value of the level
        of income, the prepayment risk, and the price volatility,  both for the
        individual   security  and  its  relationship  with  the  rest  of  the
        portfolio.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee. This fee was computed and paid at one-eighth of one percent (.125%)
of average net assets for the fiscal year ended May 31,  1998.  We also provide
services  related to selling the Fund's shares and receive no compensation  for
those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

Portfolio Manager

[PHOTOGRAPH OF PORTFOLIO MANAGER]
KENNETH E. WILLMANN
Kenneth E. Willmann,  Vice President of Fixed Income Investments since December
1986,  has managed the Fund since  February  1995.  He has 24 years  investment
management  experience and has worked for us for 21 years.  Mr. Willmann earned
the  Chartered  Financial  Analyst  designation  in 1978 and is a member of the
Association for Investment  Management and Research,  the San Antonio Financial
Analysts Society,  Inc., and the National Federation of Municipal Analysts.  He
holds an MBA and a BA from the University of Texas.

                                       9
<PAGE>

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

For example, assume you wish to invest in a widely-diversified  portfolio.  You
could combine an investment in the GNMA Trust with  investments in other mutual
funds  that  invest in stocks of large and small  companies  and  high-dividend
stocks.  This is just one way you could  combine funds to fit your own risk and
reward goals.

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 21. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy Fund, the USAA Family of Funds provides a broad range of

                                      10
<PAGE>

choices  covering just about any investor's  investment  objectives.  Our sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 21 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after the NAV per share is  calculated,  the purchase
will be effective on the next business day. If you plan to purchase Fund shares
with a foreign check, we suggest you convert your foreign check to U.S. dollars
prior to  investment  in the Fund to avoid a potential  delay in the  effective
date of your  purchase of up to four to six weeks.  Furthermore,  a bank charge
may be assessed in the clearing process, which will be deducted from the amount
of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

                                      11
<PAGE>

ADDITIONAL PURCHASES

o   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA GNMA Trust
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

                                      12
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

                                      13
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock certificate form and the shares to be acquired

                                      14
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE, which is usually 4:00 p.m. Eastern Time.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service  approved by the Board of Trustees.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Trustees.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

Net  investment  income  of the  Fund is  accrued  daily  and  paid on the last
business day of the month.  Dividends shall begin accruing on shares  purchased
the day  following  the  effective  date and  shall  continue  to accrue to the
effective date of redemption. Any net capital gain distribution usually

                                      15
<PAGE>

occurs  within 45 days of the May 31 fiscal year end,  which would be somewhere
around  the  middle  of  July.  The  Fund  will  make  additional  payments  to
shareholders,  if necessary,  to avoid the  imposition of any federal income or
excise tax.

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the  Fund  shares  computed  on the  ex-dividend  date.  Any
capital  gain  distributions  paid by the Fund will reduce the NAV per share by
the amount of the dividend or distribution.  These dividends and  distributions
are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

                                      16
<PAGE>

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                  EIGHT-MONTH
                                     YEAR ENDED MAY 31,           PERIOD ENDED
                                     ------------------              MAY 31,
                            1998       1997      1996       1995      1994
                            ----       ----      ----       ----      ----
Net asset value at
  beginning of period     $   9.95   $   9.76  $  10.09  $    9.82  $  10.37
Net investment income          .66        .69       .70        .72       .49
Net realized and
  unrealized gain (loss)       .37        .19      (.33)       .27      (.55)
Distributions from net
  investment income           (.66)      (.69)     (.70)      (.72)     (.49)
                          --------   --------  --------  ---------  --------
Net asset value at
  end of period           $  10.32   $   9.95  $   9.76  $   10.09  $   9.82
                          ========   ========  ========  =========  ========
Total return (%)*            10.65       9.23      3.65      10.54      (.66)
Net assets at end of
  period (000)            $377,528   $308,798  $301,589  $ 265,571  $261,251
Ratio of expenses to
  average net assets (%)       .30        .30       .32        .32       .31(a)
Ratio of net investment
  income to average net
  assets (%)                  6.48       6.93      6.90       7.34      7.20(a)
Portfolio turnover (%)       60.85      77.82    127.77      93.78     90.05
- -----------------
  *  Assumes  reinvestment  of all  dividend income  distributions  during  the
     period.
(a)  Annualized.  The  ratio  is not  necessarily indicative  of 12  months  of
     operations.

                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

REPURCHASE AGREEMENTS

We may invest the Fund's assets in repurchase  agreements which are exclusively
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by  the  U.S.  Government,  its  agencies,  or  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

COLLATERALIZED MORTGAGE OBLIGATIONS (CMOS)

CMOs are  obligations  fully  collateralized  by a portfolio  of  mortgages  or
mortgage-related  securities.  CMOs are  divided  into pieces  (tranches)  with
varying maturities.  The cash flow from the underlying mortgages is used to pay
off each tranche  separately.  CMOs are designed to provide investors with more
predictable maturities than regular mortgage securities but such maturities can
be  difficult  to  predict  because of the  effect of  prepayments.  Failure to
accurately predict  prepayments can adversely affect the Fund's return on these
investments. CMOs may also be less marketable than other securities.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

                                      19
<PAGE>

ILLIQUID SECURITIES

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      20
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      21
<PAGE>
                                     NOTES
<PAGE>
                                     NOTES
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part A

                               Prospectus for the

                          Treasury Money Market Trust

                               is included herein
<PAGE>
                              USAA TREASURY MONEY
                                  MARKET TRUST

                                   PROSPECTUS
                                OCTOBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.

                               TABLE OF CONTENTS

What is the Fund's Investment Objective and Main Strategy?....... 2
Main Risks of Investing in This Fund............................. 2
Is This Fund for You?............................................ 3
Could the Value of Your Investment in This Fund Fluctuate?....... 3
Fees and Expenses................................................ 5
Fund Investments................................................. 6
Fund Management.................................................. 8
Using Mutual Funds in an Investment Program...................... 9
How to Invest....................................................10
Important Information About Purchases and Redemptions............13
Exchanges........................................................13
Shareholder Information..........................................14
Financial Highlights.............................................15
Appendix A ......................................................19
Appendix B ......................................................20

<PAGE>

USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund has an objective of providing  investors  maximum current income while
maintaining  the highest  degree of safety and  liquidity.  We will  attempt to
achieve the Fund's objective by investing the Fund's assets in U.S.  Government
securities with maturities of 397 days or less. Most of the Fund's  investments
will be in U.S.  Treasury  bills,  notes and bonds,  and repurchase  agreements
collateralized by these instruments.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risk of investing in this Fund is interest rate risk.

o   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments in U.S.  Government  securities will decline due to an increase
    in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

Money market funds are  sometimes  confused  with savings  accounts.  A savings
account is a deposit  with a bank.  The bank is  obligated to return the amount
deposited  and to pay you interest  for the use of your money.  Up to a certain
amount,  the Federal Deposit Insurance  Corporation (FDIC) will insure that the
bank meets its obligations.

The Fund is not a savings  account but,  rather,  is a money market mutual fund
that  issues and  redeems  its  shares at the Fund's per share net asset  value
(NAV). The Fund always seeks to maintain a constant NAV of $1 per share.

                                       2
<PAGE>

We manage the Fund,  however, in accordance with strict Securities and Exchange
Commission  guidelines  designed to preserve the value of your shares remaining
at $1 per  share.  Just  as a  savings  account  pays  interest  on the  amount
deposited,  the Fund pays  dividends on the shares you own. If these  dividends
are reinvested in the Fund, the value of your account will grow over time.

An investment in this Fund is not a deposit of USAA Federal Savings Bank and is
not insured or guaranteed by the FDIC or any other government agency.  Although
the Fund seeks to preserve the value of your  investment at $1 per share, it is
possible to lose money by investing in the Fund.

IS THIS FUND FOR YOU?

This Fund might be appropriate as part of your investment portfolio if . . .

|X| You need your money back within a short period.
|X| You need to preserve principal.
|X| You want a low-risk investment.
|X| You would like checkwriting privileges on the account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

|X| You need a high total return to achieve your goals.
|X| Your primary goal is long-term growth.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes,  it  could.  We  manage  the Fund  with  strict  Securities  and  Exchange
Commission  guidelines  designed to preserve  the Fund's value at $1 per share,
although,  of course,  we cannot guarantee that the value will remain at $1 per
share.  Because  of this,  the  value of your  investment  typically  will grow
through reinvested dividends.  The bar chart shown on the next page illustrates
the Fund's  volatility and  performance  from year to year over the life of the
Fund.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR        TOTAL RETURN
      YEAR           PERCENTAGE
     1991*              4.78
     1992               3.54
     1993               2.82
     1994               3.79
     1995               5.59
     1996               5.10
     1997               5.21

     *FUND BEGAN OPERATIONS ON FEBRUARY 1, 1991.

     THE TREASURY  MONEY MARKET  TRUST'S TOTAL RETURN FOR THE SIX-MONTH  PERIOD
     ENDED JUNE 30, 1998, WAS 2.56%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 1.42%  (quarter  ending June 30,  1995) and the lowest total return
for a quarter was .69% (quarter ending June 30, 1993).

YIELD

                                  YIELD IS THE
                                 ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                                SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                  SHARE PRICE.

                                EFFECTIVE YIELD
                                 IS CALCULATED
                                   SIMILAR TO
                                   THE YIELD,
                                 HOWEVER, WHEN
                                  ANNUALIZED,
                                   THE INCOME
                                   EARNED IS
                                 ASSUMED TO BE
                                  REINVESTED.

All mutual funds must use the same  formulas to calculate  yield and  effective
yield. The Fund typically advertises  performance in terms of a 7-day yield and
effective yield and may advertise total return.  The 7-day yield quotation more
closely reflects current earnings of the Fund than the total return  quotation.
The  effective  yield will be  slightly  higher  than the yield  because of the
compounding  effect of the assumed  reinvestment.  Current yields and effective
yields  fluctuate  daily and will vary with factors such as interest  rates and
the quality,  length of  maturities,  and type of investments in the portfolio.
The Fund's 7-day yield for the period ended December 31, 1997, was 5.15%.

                                       4
<PAGE>

You may  obtain  the most  current  yield  information  for the Fund by calling
1-800-531-8777.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 5 9 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, and return information for this Fund,
you may call TouchLINE(R) at 1-800-531-8777.  Press 1 for the Mutual Fund Menu,
press 1 again for prices,  yields, and returns.  Then, press 59# when asked for
the Fund Code.

                                     TICKER
                                     SYMBOL
                                     UATXX

If you prefer to obtain this information from an on-line computer service,  you
can do so by using the ticker symbol "UATXX."

FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly

There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)

Annual Fund Operating Expenses -- Fees You Pay Indirectly

Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses before waivers,
if any, during the past fiscal year ended May 31, 1998, and are calculated as a
percentage of average net assets (ANA).

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

          Management Fees                         .125%
          Distribution (12b-1) Fees                None
          Other Expenses                          .267%
                                                  -----
          Total Annual Fund Operating Expenses*   .392%
                                                  =====

                                       5
<PAGE>
- --------------

   * During the year, we  voluntarily  limited the Total Annual Fund  Operating
     Expenses to .375% as follows:

          Total Annual Fund Operating Expenses         .392%
          Reimbursement from USAA Investment
            Management Company                        (.017%)
                                                       -----
          Actual Fund Operating Expenses
            After Reimbursement                        .375%
                                                       =====

     We have voluntarily agreed to limit the Fund's annual expenses to .375% of
     its ANA and will  reimburse  the Fund for all  expenses  in excess of that
     amount until October 1, 1999.

Example of Effect of the Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
(before any applicable  reimbursement)  remain the same, and (3) you redeem all
of your shares at the end of the periods shown.

                   1 year............... $ 40
                   3 years..............  127
                   5 years..............  220
                  10 years..............  495

FUND INVESTMENTS

Principal Investment Strategies and Risks

   Q    What is the Fund's principal investment strategy?

   A    The Fund's principal investment strategy is to invest the Fund's assets
        exclusively in securities  with maturities of 397 days or less that are
        backed  by the  full  faith  and  credit  of the  U.S.  Government  and
        repurchase agreements collateralized by such securities.

   Q    What types of U.S.  Government  securities  will the  Fund's  assets be
        invested in?

   A    Under normal market conditions,  we will invest the Fund's total assets
        primarily  in U.S.  Treasury  bills,  notes and bonds,  and  repurchase
        agreements collateralized by such obligations.

                                       6
<PAGE>

   Q    May the  Fund's  assets be  invested  in any  types of U.S.  Government
        securities?

   A    Yes.  We may  invest  up to 35% of the  Fund's  total  assets  in other
        obligations  that have been  backed by the full faith and credit of the
        U.S.  Government,  including  securities issued by any of the following
        agencies and instrumentalities:

        o General Services Administration,
        o Government National Mortgage Association,
        o Overseas Private Investment Corporation,
        o Rural Electrification Administration,
        o Small Business Administration,
        o Federal Financing Bank, and
        o repurchase agreements collateralized by such obligations.

   Q    Will the Fund always maintain a net asset value of $1 per share?

   A    While we will  endeavor to maintain a constant  Fund net asset value of
        $1 per  share,  there  is no  assurance  that we will be able to do so.
        Remember,  the shares are neither  insured nor  guaranteed  by the U.S.
        Government. As such, the Fund carries some risk.

        There is also a risk that rising interest rates will cause the value of
        the Fund's securities to decline.  We attempt to minimize this interest
        risk by limiting the maturity of each  security to 397 days or less and
        maintaining a dollar-weighted  average portfolio  maturity for the Fund
        of 90 days or less.

                                    DOLLAR-
                                    WEIGHTED
                                    AVERAGE
                                   PORTFOLIO
                                  MATURITY IS
                                  OBTAINED BY
                                  MULTIPLYING
                                   THE DOLLAR
                                 VALUE OF EACH
                                   INVESTMENT
                                 BY THE NUMBER
                                OF DAYS LEFT TO
                                 ITS MATURITY,
                                  THEN ADDING
                                 THOSE FIGURES
                                  TOGETHER AND
                                  DIVIDING THE
                                  TOTAL BY THE
                                  DOLLAR VALUE
                                 OF THE FUND'S
                                   PORTFOLIO.

   Q    Will any portion of the Fund's  dividends be exempt from state personal
        income taxes?

   A    Possibly.  Under  federal law,  the income  received  from  obligations
        issued  by  the  U.S.  Government  and  certain  of  its  agencies  and
        instrumentalities  is exempt from state  personal  income  taxes.  Many
        states  that  impose a  personal  income  tax  permit  mutual  funds to
        pass-through this tax exemption to you as a shareholder of the Fund.

        We anticipate  that some portion of the dividends paid to  shareholders
        residing in these  states will  qualify for this  exemption  from state
        taxation.  We urge you to consult your own tax adviser about the status
        of distributions from the Fund in your own state and locality.

                                       7
<PAGE>

   Q    How does the portfolio manager decide which securities to buy and sell?

   A    She  evaluates  securities  in the  marketplace  based  on  the  Fund's
        objective of maximizing  current income while  maintaining  the highest
        degree of safety  and  liquidity.  Furthermore,  regulations  governing
        money  market  funds limit  purchases of a security to a maximum of 397
        days and limit the Fund to a maximum  average  maturity of 90 days. For
        the Treasury  Money Market  Trust this process is  facilitated  by only
        purchasing full faith, and credit obligations of the U.S. Government or
        repurchase agreements  collateralized by such securities.  On any given
        day, she evaluates the  government  securities  market  compared to the
        repurchase  agreement market to decide which provides the most value to
        the shareholder.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.

FUND MANAGEMENT

The Trust has retained us, USAA Investment  Management Company, to serve as the
manager and  distributor  for the Trust. We are an affiliate of United Services
Automobile   Association  (USAA),  a  large,   diversified  financial  services
institution.  As of the  date  of this  Prospectus,  we had  approximately  $__
billion  in  total  assets  under  management.  Our  mailing  address  is  9800
Fredericksburg Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
We are responsible for managing the Fund's  portfolio  (including  placement of
brokerage  orders) and its business  affairs,  subject to the  authority of and
supervision  by the Board of Trustees.  For our  services,  the Fund pays us an
annual fee. The fee,  one-eighth of one percent  (.125%) of average net assets,
is accrued daily and paid  monthly.  The fee received for the fiscal year ended
May 31, 1998, net of reimbursements,  was equal to .108% of average net assets.
We also provide  services  related to selling the Fund's  shares and receive no
compensation for those services.

Although our officers and employees,  as well as those of the Trust, may engage
in personal securities transactions, they are restricted by the procedures in a
Joint Code of Ethics adopted by the Trust and us.

                                       8
<PAGE>

Portfolio Manager

[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAMELA K. BLEDSOE
Pamela K. Bledsoe,  Assistant  Vice  President of Money Market Funds since July
1998,  has  managed  the Fund  since  May  1996.  She has 10  years  investment
management experience and has worked for us for seven years. Ms. Bledsoe earned
the  Chartered  Financial  Analyst  designation  in 1992 and is a member of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial  Analysts  Society,  Inc.  She  holds  an MBA  from  Texas  Christian
University and a BS from Louisiana Tech University.

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  part  of a  diversified
portfolio. That portfolio is managed by investment professionals, relieving you
of the  need to make  individual  stock  or bond  selections.  You  also  enjoy
conveniences,  such as daily  pricing,  liquidity,  and in the case of the USAA
Family of Funds, no sales charge. The portfolio, because of its size, has lower
transaction  costs on its trades than most individuals would have. As a result,
you own an investment  that in earlier times would have been  available only to
very wealthy people.

II. Using Funds in an Investment Program

In  choosing a mutual  fund as an  investment  vehicle,  you are giving up some
investment decisions,  but must still make others. The decisions you don't have
to make are those involved with choosing individual securities. We will perform
that function.  In addition, we will arrange for the safekeeping of securities,
auditing the annual financial  statements,  and daily valuation of the Fund, as
well as other functions.

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

                                       9
<PAGE>

For example, assume you wish to invest in a widely-diversified  portfolio.  You
could combine an investment in the Treasury Money Market Trust with investments
in other  mutual funds that invest in stocks of large and small  companies  and
high-dividend  stocks. This is just one way you could combine funds to fit your
own risk and reward goals.

III. USAA's Family of Funds

We offer you another  alternative  with our asset  strategy  funds listed under
asset allocation on page 20. These unique mutual funds provide a professionally
managed diversified investment portfolio within a mutual fund. Designed for the
individual  who  prefers  to  delegate  the  asset  allocation  process  to  an
investment manager, their structure achieves diversification across a number of
investment categories.

Whether you prefer to create  your own mix of mutual  funds or use a USAA Asset
Strategy  Fund,  the USAA  Family of Funds  provides  a broad  range of choices
covering  just  about  any   investor's   investment   objectives.   Our  sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 20 for a
complete list of the USAA Family of No-Load Mutual Funds.

HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT

You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.

TAX ID NUMBER

Each shareholder  named on the account must provide a social security number or
tax identification number to avoid possible withholding requirements.

EFFECTIVE DATE

When you make a purchase, your purchase price will be the net asset value (NAV)
per share next  determined  after we receive your  request in proper form.  The
Fund's NAV is determined at the close of the regular trading session (generally
4:00 p.m. Eastern Time) of the New York Stock Exchange (NYSE) each day the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your request or payment after the NAV per share is

                                      10
<PAGE>

calculated,  the purchase  will be effective on the next  business  day. If you
plan to purchase Fund shares with a foreign check,  we suggest you convert your
foreign  check  to U.S.  dollars  prior  to  investment  in the Fund to avoid a
potential  delay in the  effective  date of your  purchase of up to four to six
weeks.  Furthermore,  a bank charge may be assessed  in the  clearing  process,
which will be deducted from the amount of the purchase.

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
o   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

o   $50 (Except  transfers from brokerage  accounts,  which are exempt from the
    minimum).

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
o   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON

[HANDSHAKE GRAPHIC]
o   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

                                      11
<PAGE>

BANK WIRE

[WIRE GRAPHIC]
o   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Treasury Money Market Trust
       USAA Account Number: 69384998
       Shareholder(s) Name(s)______________________________________
       Shareholder(s) Mutual Fund Account Number___________________

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
o   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
o   If you have an existing  USAA  account and would like to open a new account
    or exchange to another USAA fund, call for instructions. To open an account
    by phone, the new account must have the same  registration as your existing
    account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  However,  if  instructions  are
received  after  the NAV per share  calculation  (generally  4:00 p.m.  Eastern
Time), redemption will be effective on the next business day.

We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check has  cleared,  which  could  take up to 15 days from the
purchase date. If you are considering redeeming shares soon after purchase, you
should purchase by bank wire or certified check to avoid delay. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.

In  addition,  the Trust  may  elect to  suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

                                      12
<PAGE>

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
o   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
o   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
o   Call toll free 1-800-531-8448, in San Antonio, 456-7202.

Telephone redemption privileges are automatically established when you complete
your application.  The Fund will employ  reasonable  procedures to confirm that
instructions  communicated by telephone are genuine; and if it does not, it may
be liable for any losses due to unauthorized or fraudulent instructions. Before
any discussion regarding your account, we obtain the following information: (1)
USAA number or account number, (2) the name(s) on the account registration, and
(3)  social  security  number  or tax  identification  number  for the  account
registration.  In addition, we record all telephone communications with you and
send  confirmations  of account  transactions to the address of record.  If you
were issued stock certificates for your shares,  redemption by telephone,  fax,
or telegram is not available.

CHECKWRITING

[CHECKBOOK GRAPHIC]
o   Return a signed signature card,  which  accompanies  your  application,  or
    request a signature card separately and return to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

You will not be charged for the use of checks or any subsequent reorders.  Your
checkwriting  privilege  is subject to State  Street  Bank and Trust  Company's
rules and regulations governing checking accounts.  You may write checks in the
amount of $250 or more.  Checks  written  for less  than $250 will be  returned
unpaid.  Because the value of your account  changes daily as dividends  accrue,
you may not write a check to close your account.

                                      13
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance

USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually a small balance account fee of $12 to each shareholder  account with a
balance,  at the time of assessment,  of less than $2,000.  The fee will reduce
total transfer  agency fees paid by the Fund to SAS.  Accounts  exempt from the
fee include: (1) any account regularly purchasing  additional shares each month
through an automatic  investment  plan;  (2) any account  registered  under the
Uniform  Gifts/Transfers  to Minors Act  (UGMA/UTMA);  (3) all (non-IRA)  money
market fund accounts;  (4) any account whose  registered owner has an aggregate
balance of $50,000  or more  invested  in USAA  mutual  funds;  and (5) all IRA
accounts (for the first year the account is open).

Trust Rights

The Trust reserves the right to:

o   reject purchase or exchange orders when in the best interest of the Trust;

o   limit or  discontinue  the offering of shares of any portfolio of the Trust
    without notice to the shareholders;

o   require a  signature  guarantee  for  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

o   redeem an account with less than $900, with certain limitations.

EXCHANGES

Exchange Privilege

The exchange privilege is automatic when you complete your application. You may
exchange  shares  among Funds in the USAA Family of Funds,  provided you do not
hold these shares in stock certificate form and the shares to be acquired

                                      14
<PAGE>

are  offered  in your  state of  residence.  The  Fund's  transfer  agent  will
simultaneously  process exchange  redemptions and purchases at the share prices
next determined after the exchange order is received.  The investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.

Exchange Limitations, Excessive Trading

To  minimize  Fund costs and to protect the Funds and their  shareholders  from
unfair expense burdens,  the Funds restrict excessive  exchanges.  The limit on
exchanges  out of any Fund in the USAA Family of Funds for each  account is six
per calendar  year (except  there is no  limitation on exchanges out of the Tax
Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the money market funds
in the USAA Family of Funds).

SHAREHOLDER INFORMATION

Share Price Calculation

                                      NAV
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  The  Fund's  NAV per  share is  calculated  at the close of the
regular trading session of the NYSE,  which is usually 4:00 p.m.  Eastern Time.
Securities are stated at amortized cost, which approximates market value.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.

Dividends and Distributions

Net  investment  income  of the  Fund is  accrued  daily  and  paid on the last
business day of the month.  Dividends shall begin accruing on shares  purchased
the day  following  the  effective  date and  shall  continue  to accrue to the
effective date of redemption.  Any net capital gain distribution usually occurs
within 45 days of the May 31 fiscal year end,  which would be somewhere  around
the middle of July. The Fund will make additional payments to shareholders,  if
necessary, to avoid the imposition of any federal income or excise tax.

                                      15
<PAGE>

All  income  dividends  and  capital  gain   distributions   are  automatically
reinvested,  unless we receive different instructions from you. The share price
will be the NAV of the Fund shares  computed  on the  ex-dividend  date.  These
dividends and distributions are subject to taxes.

We will invest any  dividend  or  distribution  payment  returned to us in your
account at the  then-current NAV per share.  Dividend and  distribution  checks
become  void six months  from the date on the  check.  The amount of the voided
check will be invested in your account at the then-current NAV per share.

FEDERAL TAXES

This tax  information  is quite  general and refers to the  federal  income tax
provisions in effect as of the date of this Prospectus.  Note that the Taxpayer
Relief Act of 1997 and regulations that will likely be adopted to implement the
Act may affect the status and treatment of certain  distributions  shareholders
receive from the Fund.  We urge you to consult  your own tax adviser  about the
status of distributions from the Fund in your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net short-term  capital gains are taxable to shareholders  as ordinary  income,
whether received in cash or reinvested in additional shares.

Regardless  of the length of time you have held Fund shares,  distributions  of
net  long-term  capital  gains are taxable as long-term  capital  gains whether
received in cash or reinvested in additional shares. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.

WITHHOLDING  - Federal law  requires the Fund to withhold and remit to the U.S.
Treasury a portion of the income dividends and capital gain  distributions  and
proceeds of redemptions paid to any non-corporate shareholder who:

o   fails to furnish the Fund with a correct tax identification number,
o   underreports dividend or interest income, or
o   fails to certify that he or she is not subject to withholding.

To avoid this withholding requirement, you must certify on your application, or
on a separate  Form W-9 supplied by the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report  information  to you concerning the tax status
of dividends and distributions for federal income tax purposes annually.

                                      16
<PAGE>

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years, such as 98 for 1998. A program  written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much  effort and money; and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                   EIGHT-MONTH
                                    YEAR ENDED MAY 31,             PERIOD ENDED
                                    ------------------                MAY 31,
                         1998        1997       1996       1995        1994
                         ----        ----       ----       ----        ----
Net asset value at
  beginning of period  $   1.00    $  1.00    $  1.00    $  1.00     $  1.00
Net investment income       .05        .05        .05        .05         .02
Distributions from net
  investment income        (.05)      (.05)      (.05)      (.05)       (.02)
                       --------    -------    -------    -------     -------
Net asset value at
  end of period        $   1.00    $  1.00    $  1.00    $  1.00     $  1.00
                       ========    =======    =======    =======     =======
Total return (%)*          5.24       5.06       5.38       4.88        1.96
Net assets at end of
  period (000)         $106,679    $88,612    $76,777    $67,876     $37,984
Ratio of expenses to
  average net assets (%)   .375       .375       .375       .375        .375(a)
Ratio of expenses
  to average net
  assets excluding
  reimbursements (%)       .392       .394       .403       .488        .620(a)
Ratio of net investment
  income to average net
  assets (%)               5.11       4.95       5.23       4.91        2.94(a)
- ------------
 *  Assumes  reinvestment  of  all  dividend  income  distributions  during the
    period.
(a) Annualized.   The  ratio  is not  necessarily  indicative  of 12  months of
    operations.

                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

REPURCHASE AGREEMENTS

We may invest the Fund's assets in repurchase  agreements which are exclusively
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by  the  U.S.  Government,  its  agencies,  or  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.

WHEN-ISSUED SECURITIES

We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.

o   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
o   The Funds do not earn interest on the securities until settlement,  and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
o   Such securities can be sold before settlement date.

VARIABLE RATE SECURITIES

We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.

o   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

o   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

o   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

ILLIQUID SECURITIES

We may  invest  up to 10% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

                                      19
<PAGE>

                                   APPENDIX B

USAA Family of No-Load Mutual Funds

The USAA Family of No-Load Mutual Funds includes a variety of Funds,  each with
different objectives and policies. In combination,  these Funds are designed to
provide you with the opportunity to formulate your own investment program.  You
may  exchange  any shares you hold in any one USAA Fund for shares in any other
USAA Fund. For more complete  information  about other Funds in the USAA Family
of Funds,  including  charges and expenses,  call us for a Prospectus.  Read it
carefully before you invest or send money.

     FUND
  TYPE/NAME                     VOLATILITY
=================================================
CAPITAL APPRECIATION
Aggressive Growth               Very high
Emerging Markets (1)            Very high
First Start Growth              Moderate to high
Gold (1)                        Very high
Growth                          Moderate to high
Growth & Income                 Moderate
International (1)               Moderate to high
S&P 500 Index (2)               Moderate
Science & Technology            Very high
World Growth (1)                Moderate to high
=================================================
ASSET ALLOCATION
Balanced Strategy (1)           Moderate
Cornerstone Strategy (1)        Moderate
Growth and Tax Strategy         Moderate
Growth Strategy (1)             Moderate to high
Income Strategy                 Low to moderate
=================================================
INCOME -- TAXABLE
GNMA                            Low to moderate
Income                          Moderate
Income Stock                    Moderate
Short-Term Bond                 Low
=================================================
INCOME -- TAX EXEMPT
Long-Term (3)                   Moderate
Intermediate-Term (3)           Low to moderate
Short-Term (3)                  Low
State Bond/Income (3, 4)        Moderate
=================================================
MONEY MARKET 
Money Market (5)                Very low
Tax Exempt Money Market (3, 5)  Very low
Treasury Money Market Trust (5) Very low
State Money Market (3, 4, 5)    Very low
=================================================

1  FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS CURRENCY 
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.
2  S&P(R) IS A TRADEMARK OF THE MCGRAW-HILL COMPANIES, INC., AND HAS BEEN
   LICENSED FOR USE. THE PRODUCT IS NOT SPONSORED, SOLD OR PROMOTED BY STANDARD
   & POOR'S, AND STANDARD & POOR'S MAKES NO REPRESENTATION REGARDING THE 
   ADVISABILITY OF INVESTING IN THE PRODUCT.
3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.
4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY 
   TO RESIDENTS OF THOSE STATES.
5  AN INVESTMENT IN A MONEY MARKET FUND IS NEITHER INSURED NOR GUARANTEED BY 
   THE U.S. GOVERNMENT AND THERE IS NO ASSURANCE THAT ANY OF THE FUNDS WILL BE 
   ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE.

                                      20
<PAGE>

  If  you  would  like  more   information   about  the  Fund,   you  may  call
  1-800-531-8181  to request a free copy of the Fund's  Statement of Additional
  Information  (SAI),  Annual or Semiannual  Report,  or to ask other questions
  about the Fund.  The SAI has been  filed  with the  Securities  and  Exchange
  Commission  (SEC) and is  legally  a part of the  Prospectus.  In the  Fund's
  Annual  Report,  you will find a  discussion  of the  market  conditions  and
  investment  strategies  that  significantly  affected the Fund's  performance
  during the last fiscal year.

  To view these documents,  along with other related  documents,  you can visit
  the SEC's Internet web site  (http://www.sec.gov)  or the Commission's Public
  Reference Room in Washington, D.C. Information on the operation of the public
  reference  room can be  obtained  by  calling  1-800-SEC-0330.  Additionally,
  copies of this information can be obtained, for a duplicating fee, by writing
  the Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                 TRANSFER AGENT
                       USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                         ------------------------------
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                 P.O. Box 1713
                          Boston, Massachusetts 02105
                         ------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.
                         ------------------------------
                   FOR ADDITIONAL INFORMATION ON MUTUAL FUNDS
                   1-800-531-8181, (in San Antonio) 456-7211
                For account servicing, exchanges or redemptions
                   1-800-531-8448, (in San Antonio) 456-7202
                         ------------------------------
                       RECORDED MUTUAL FUND PRICE QUOTES
                        24-Hour Service (from any phone)
                   1-800-531-8066, (in San Antonio) 498-8066
                         ------------------------------
                           MUTUAL FUND TOUCHLINE (R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices
                   1-800-531-8777, (in San Antonio) 498-8777

                   Investment Company Act File No. 811-4019

<PAGE>
                                     Part B

                  Statement of Additional Information for the

          Income Strategy, Growth and Tax Strategy, Balanced Strategy,
         Cornerstone Strategy, Growth Strategy, Emerging Markets, Gold,
             International, and World Growth Funds, GNMA Trust and
                          Treasury Money Market Trust

                               is included herein
<PAGE>
USAA     USAA                                            STATEMENT OF
EAGLE    INVESTMENT                                      ADDITIONAL INFORMATION
   
LOGO     TRUST                                           October 1, 1998
    
- -------------------------------------------------------------------------------

                             USAA INVESTMENT TRUST
   
USAA INVESTMENT TRUST (the Trust) is a registered  investment  company offering
shares of eleven  no-load mutual funds which are described in this Statement of
Additional Information (SAI): the Income Strategy Fund, Growth and Tax Strategy
Fund, Balanced Strategy Fund,  Cornerstone Strategy Fund, Growth Strategy Fund,
Emerging Markets Fund, Gold Fund,  International  Fund, World Growth Fund, GNMA
Trust, and Treasury Money Market Trust (collectively,  the Funds). Each Fund is
classified as diversified.

You may obtain a free copy of a Prospectus dated October 1, 1998, for each Fund
by writing to USAA Investment Trust, 9800 Fredericksburg  Road, San Antonio, TX
78288,  or by calling toll free  1-800-531-8181.  The  Prospectus  provides the
basic  information you should know before  investing in the Funds.  This SAI is
not a Prospectus and contains information in addition to and more detailed than
that set forth in each  Fund's  Prospectus.  It is intended to provide you with
additional information regarding the activities and operations of the Trust and
the Funds, and should be read in conjunction with each Fund's Prospectus.

     The financial statements of the Funds and the Independent Auditors' Report
thereon  for  the  fiscal  year  ended  May  31,  1998,  are  included  in  the
accompanying  Annual Report to Shareholders  of that date and are  incorporated
herein by reference.
    
- -------------------------------------------------------------------------------
                               TABLE OF CONTENTS

        PAGE
           2   Valuation of Securities
           3   Conditions of Purchase and Redemption
           3   Additional Information Regarding Redemption of Shares
           4   Investment Plans
           5   Investment Policies
           8   Special Risk Considerations
   
           9   Investment Restrictions
    
          11   Portfolio Transactions
   
          13   Description of Shares
    
          14   Tax Considerations
          15   Trustees and Officers of the Trust
          18   The Trust's Manager
   
          19   General Information
    
          20   Calculation of Performance Data
   
          21   Appendix A - Long-Term and Short-Term Debt Ratings
          23   Appendix B - Comparison of Portfolio Performance
          26   Appendix C - Dollar-Cost Averaging
    
<PAGE>
                            VALUATION OF SECURITIES

Shares of each Fund are offered on a continuing best efforts basis through USAA
Investment  Management  Company (IMCO or the Manager).  The offering  price for
shares of each Fund is equal to the  current  net asset  value (NAV) per share.
The NAV per share of each  Fund is  calculated  by adding  the value of all its
portfolio securities and other assets, deducting its liabilities,  and dividing
by the number of shares outstanding.

     A Fund's NAV per share is  calculated  each day,  Monday  through  Friday,
except days on which the New York Stock Exchange (NYSE) is closed.  The NYSE is
currently  scheduled to be closed on New Year's Day,  Martin  Luther King,  Jr.
Day, Presidents' Day, Good Friday,  Memorial Day,  Independence Day, Labor Day,
Thanksgiving,  and Christmas,  and on the preceding Friday or subsequent Monday
when one of these holidays falls on a Saturday or Sunday, respectively.
   
     The value of securities of each Fund (except  Treasury Money Market Trust)
is determined by one or more of the following methods:
    
 (1)  Portfolio  securities,  except as otherwise noted,  traded primarily on a
      domestic  securities  exchange are valued at the last sales price on that
      exchange.  Portfolio  securities  traded primarily on foreign  securities
      exchanges are generally  valued at the closing values of such  securities
      on the exchange  where  primarily  traded.  If no sale is  reported,  the
      average of the bid and asked  prices is  generally  used  depending  upon
      local custom or regulation.

 (2)  Over-the-counter securities are priced at the last sales price or, if not
      available, at the average of the bid and asked prices at the time trading
      closes on the NYSE.

 (3)  Debt  securities  purchased with maturities of 60 days or less are stated
      at amortized cost which approximates market value.  Repurchase agreements
      are valued at cost.

 (4)  Other debt and  government  securities  are valued each business day by a
      pricing  service (the  Service)  approved by the Board of  Trustees.  The
      Service  uses the mean  between  quoted bid and asked  prices or the last
      sales price to price  securities when, in the Service's  judgment,  these
      prices are readily  available and are  representative  of the securities'
      market  values.  For  many  securities,   such  prices  are  not  readily
      available. The Service generally prices those securities based on methods
      which  include  consideration  of  yields  or  prices  of  securities  of
      comparable quality,  coupon,  maturity and type, indications as to values
      from dealers in securities, and general market conditions.

 (5)  Securities which cannot be valued by the methods set forth above, and all
      other  assets,  are  valued in good  faith at fair  value  using  methods
      determined by the Manager under the general  supervision  of the Board of
      Trustees.
          
     The value of the Treasury  Money Market  Trust's  securities  is stated at
amortized  cost  which  approximates  market  value.  This  involves  valuing a
security  at its  cost and  thereafter  assuming  a  constant  amortization  to
maturity of any discount or premium,  regardless  of the impact of  fluctuating
interest  rates.  While this method  provides  certainty in  valuation,  it may
result in periods  during which the value of an  instrument,  as  determined by
amortized  cost, is higher or lower than the price the Trust would receive upon
the sale of the instrument.

     The valuation of the Treasury Money Market Trust's  portfolio  instruments
based upon their  amortized cost is subject to the Fund's  adherence to certain
procedures and conditions. Consistent with regulatory requirements, the Manager
will only purchase securities with remaining maturities of 397 days or less and
will maintain a dollar-weighted  average portfolio  maturity of no more than 90
days. The Manager will invest only in securities  that have been  determined to
present  minimal  credit risk and that satisfy the quality and  diversification
requirements of applicable rules and regulations of the Securities and Exchange
Commission (SEC).
   
     The Board of Trustees has established procedures designed to stabilize the
Treasury Money Market  Trust's price per share,  as computed for the purpose of
sales and redemptions,  at $1.00. There can be no assurance,  however, that the
Fund will at all times be able to maintain a constant $1.00 NAV per share. Such
procedures include review of the Fund's holdings at such intervals as is deemed
appropriate to determine  whether the Fund's NAV calculated by using  available
market quotations deviates from $1 per share and, if so, whether such deviation
may  result  in  material   dilution  or  is   otherwise   unfair  to  existing
shareholders.  In the event that it is determined that such a deviation exists,
the Board of  Trustees  will  take such  corrective  action  as it  regards  as
necessary  and  appropriate.  Such action may  include,  among  other  options,
selling  portfolio  instruments  prior to  maturity  to the  Manager or another
party,  withholding  dividends,  or  establishing  a NAV  per  share  by  using
available market quotations.
    
                                       2
<PAGE>
                     CONDITIONS OF PURCHASE AND REDEMPTION

NONPAYMENT
   
If any order to purchase  shares is canceled due to  nonpayment or if the Trust
does not receive good funds either by check or electronic funds transfer,  USAA
Shareholder  Account Services (Transfer Agent) will treat the cancellation as a
redemption of shares  purchased,  and you will be responsible for any resulting
loss  incurred  by the  Fund  or the  Manager.  If you are a  shareholder,  the
Transfer Agent can redeem shares from any of your accounts as reimbursement for
all losses. In addition, you may be prohibited or restricted from making future
purchases  in any of the USAA  Family of Funds.  A $15 fee is  charged  for all
returned items, including checks and electronic funds transfers.
    
TRANSFER OF SHARES
   
You may transfer Fund shares to another person by sending written  instructions
to the Transfer  Agent.  The account must be clearly  identified,  and you must
include  the  number  of  shares  to be  transferred,  the  signatures  of  all
registered owners, and all stock certificates, if any, which are the subject of
transfer.  You also need to send written  instructions signed by all registered
owners and supporting documents to change an account registration due to events
such as divorce,  marriage, or death. If a new account needs to be established,
you must complete and return an application to the Transfer Agent.
    
             ADDITIONAL INFORMATION REGARDING REDEMPTION OF SHARES
   
The value of your investment at the time of redemption may be more or less than
the cost at  purchase,  depending on the value of the  securities  held in each
Fund's  portfolio.  Requests  for  redemption  which are subject to any special
conditions,  or which specify an effective date other than as provided  herein,
cannot be accepted. A gain or loss for tax purposes may be realized on the sale
of shares, depending upon the price when redeemed.

     The Board of  Trustees  may  cause the  redemption  of an  account  with a
balance of less than $900, provided that (1) the value of such account has been
reduced below the minimum initial investment  required in such Fund at the time
of the  establishment  of the  account to less than $900  entirely  for reasons
other than  market  action,  (2) the  account  has  remained  below the minimum
initial investment for six months, and (3) 60 days' prior written notice of the
proposed redemption has been sent to you. Shares will be redeemed at the NAV on
the date fixed for redemption by the Board of Trustees.  Prompt payment will be
made by mail to your last known address.
    
     The  Trust  reserves  the right to  suspend  the  right of  redemption  or
postpone  the date of  payment  (1) for any  periods  during  which the NYSE is
closed,  (2) when  trading  in the  markets  the  Trust  normally  utilizes  is
restricted, or an emergency exists as determined by the SEC so that disposal of
the  Trust's  investments  or  determination  of  its  NAV  is  not  reasonably
practicable,  or (3) for such other  periods as the SEC by order may permit for
protection of the Trust's shareholders.

     For the mutual  protection  of the investor  and the Funds,  the Trust may
require a signature  guarantee.  If  required,  EACH  signature  on the account
registration must be guaranteed.  Signature guarantees are acceptable from FDIC
member  banks,  brokers,  dealers,   municipal  securities  dealers,  municipal
securities  brokers,   government  securities  dealers,  government  securities
brokers,  credit unions,  national securities exchanges,  registered securities
associations, clearing agencies and savings associations. A signature guarantee
for active  duty  military  personnel  stationed  abroad may be  provided by an
officer of the United States Embassy or Consulate, a staff officer of the Judge
Advocate General, or an individual's commanding officer.

REDEMPTION BY CHECK
   
Shareholders  in the  Treasury  Money  Market  Trust may request that checks be
issued for their accounts. Checks must be written in amounts of at least $250.

     Checks issued to  shareholders  of the Treasury Money Market Trust will be
sent only to the person in whose name the account is registered and only to the
address  of  record.  The  checks  must be  manually  signed by the  registered
owner(s) exactly as the account is registered. For joint accounts the signature
of either or both joint owners will be required on the check,  according to the
election made on the signature  card. You will continue to earn dividends until
the shares are redeemed by the presentation of a check.

     When a check is presented to the Transfer Agent for payment,  a sufficient
number of full and  fractional  shares  from your  account  will be redeemed to
cover the amount of a check.  If the account  balance is not  adequate to cover
the amount of a check, the check will be returned unpaid.  Because the value of
the account  changes as dividends are accrued on a daily basis,  checks may not
be used to close an account.

                                       3
<PAGE>

     The  checkwriting   privilege  is  subject  to  the  customary  rules  and
regulations  of State Street Bank and Trust  Company  (State Street Bank or the
Custodian)  governing checking accounts.  There is no charge to you for the use
of the checks or for subsequent reorders of checks.

     The Trust  reserves  the right to assess a  processing  fee  against  your
account for any  redemption  check not  honored by a clearing or paying  agent.
Currently,  this fee is $15 and is subject to change at any time. Some examples
of such dishonor are improper  endorsement,  checks  written for an amount less
than the minimum check amount, and insufficient or uncollectible funds.
    
     The Trust,  the  Transfer  Agent,  and State  Street Bank each reserve the
right to change or suspend the  checkwriting  privilege  upon 30 days'  written
notice to participating shareholders.
   
     You may  request  that the  Transfer  Agent stop  payment on a check.  The
Transfer Agent will use its best efforts to execute stop payment  instructions,
but does not guarantee that such efforts will be effective.  The Transfer Agent
will charge you $10 for each stop payment you request.
    
                                INVESTMENT PLANS
   
The Trust makes available the following investment plans to shareholders of all
the Funds.  At the time you sign up for any of the following  investment  plans
that utilize the electronic funds transfer service,  you will choose the day of
the month (the  effective  date) on which you would like to regularly  purchase
shares.  When this day falls on a weekend or holiday,  the electronic  transfer
will take place on the last  business day before the  effective  date.  You may
terminate your participation in a plan at any time. Please call the Manager for
details and necessary forms or applications.
    
AUTOMATIC PURCHASE OF SHARES
   
INVESTART  (R) -- A no  initial  investment  plan.  With this plan the  regular
minimum initial investment amount is waived if you make monthly additions of at
least $50 through electronic funds transfer from a checking or savings account.
    
INVESTRONIC (R) -- The regular purchase of additional shares through electronic
funds transfer from a checking or savings account.  You may invest as little as
$50 per month.
   
DIRECT PURCHASE SERVICE -- The periodic  purchase of shares through  electronic
funds  transfer from an employer  (including  government  allotments and social
security), an income-producing  investment,  or an account with a participating
financial institution.
    
AUTOMATIC  PURCHASE  PLAN -- The  periodic  transfer of funds from a USAA money
market fund to purchase  shares in another  non-money  market USAA mutual fund.
There is a minimum investment  required for this program of $5,000 in the money
market fund, with a monthly transaction minimum of $50.
   
BUY/SELL SERVICE -- The  intermittent  purchase or redemption of shares through
electronic  funds  transfer to or from a checking or savings  account.  You may
initiate a "buy" or "sell" whenever you choose.

DIRECTED  DIVIDENDS  -- If you own  shares in more than one of the Funds in the
USAA  Family of Funds,  you may  direct  that  dividends  and/or  capital  gain
distributions  earned in one fund be used to purchase shares  automatically  in
another fund.

     Participation in these  systematic  purchase plans allows you to engage in
dollar-cost  averaging.  For additional  information concerning the benefits of
dollar-cost averaging, see APPENDIX C.
    
SYSTEMATIC WITHDRAWAL PLAN
   
If you own shares having a NAV of $5,000 or more in a single investment account
(accounts in different  Funds cannot be  aggregated  for this  purpose) you may
request  that enough  shares to produce a fixed  amount of money be  liquidated
from the account monthly or quarterly. The amount of each withdrawal must be at
least $50. Using the electronic funds transfer service,  you may choose to have
withdrawals   electronically   deposited  at  your  bank  or  other   financial
institution. You may also elect to have checks mailed to a designated address.

     This plan may be initiated by depositing shares worth at least $5,000 with
the Transfer Agent and by completing a Systematic  Withdrawal Plan application,
which may be requested from the Manager. You may terminate participation in the
plan at any time.  You are not charged  for  withdrawals  under the  Systematic
Withdrawal Plan. The Trust will not bear any expenses in administering the plan
beyond the regular  transfer agent and custodian costs of issuing and redeeming
shares.  The Manager will bear any  additional  expenses of  administering  the
plan.

     Withdrawals  will be made by redeeming full and  fractional  shares on the
date you select at the time the plan is established.  Withdrawal  payments made
under this plan may exceed  dividends  and  distributions  and, to this extent,
will  involve the use of  principal  and could  reduce the dollar value of your
investment  and  eventually  exhaust the  account.  Reinvesting  dividends  and
distributions  helps  replenish  the  account.  Because  share  values  and net
investment income can fluctuate,  shareholders should not expect withdrawals to
be offset by rising income or share value gains.

                                       4
<PAGE>

     Each  redemption  of shares  may  result in a gain or loss,  which must be
reported  on your  income tax  return.  Therefore,  you should keep an accurate
record of any gain or loss on each withdrawal.
    
TAX-DEFERRED  RETIREMENT  PLANS  (NOT  available in the Growth and Tax Strategy
Fund)
   
Federal  taxes on current  income may be deferred if an investor  qualifies for
certain types of retirement programs.  For the convenience of the investor, the
Manager offers 403(b)(7) accounts and various forms of IRAs. Investments may be
made in one or any combination of the portfolios described in the Prospectus of
each Fund of USAA Investment Trust and USAA Mutual Fund, Inc.

     Retirement plan applications for the IRA and 403(b)(7)  programs should be
sent directly to USAA Shareholder Account Services,  9800 Fredericksburg  Road,
San Antonio,  TX 78288.  USAA Federal Savings Bank serves as Custodian of these
tax-deferred retirement plans under the programs made available by the Manager.
Applications  for  these  retirement  plans  received  by the  Manager  will be
forwarded to the Custodian for acceptance.
    
     An  administrative  fee  of  $20  is  deducted  from  the  proceeds  of  a
distribution   closing  an  account.   Exceptions  to  the  fee  are:   partial
distributions,  total transfer within USAA, and distributions due to disability
or  death.  This  charge  is  subject  to change  as  provided  in the  various
agreements.  There may be additional  charges,  as mutually agreed upon between
the  investor  and  the  Custodian,  for  further  services  requested  of  the
Custodian.

     Each employer or individual establishing a tax-deferred retirement plan is
advised to consult with a tax adviser before  establishing  the plan.  Detailed
information about the plans may be obtained from the Manager.

                              INVESTMENT POLICIES
   
The  sections  captioned  WHAT IS THE  FUND'S  INVESTMENT  OBJECTIVE  AND  MAIN
STRATEGY?   and  FUND  INVESTMENTS  in  each  Fund's  Prospectus  describe  the
fundamental investment objective and the investment policies applicable to each
Fund. Each Fund's objective cannot be changed without shareholder approval. The
following is provided as additional information.
    
SECTION 4(2) COMMERCIAL PAPER AND RULE 144A SECURITIES

The Income Strategy,  Balanced Strategy and Growth Strategy Funds may invest in
commercial paper issued in reliance on the "private  placement"  exemption from
registration  afforded by Section 4(2) of the  Securities  Act of 1933 (Section
4(2)  Commercial  Paper).  Section 4(2)  Commercial  Paper is  restricted as to
disposition under the federal securities laws; therefore, any resale of Section
4(2)  Commercial   Paper  must  be  effected  in  a  transaction   exempt  from
registration under the Securities Act of 1933. Section 4(2) Commercial Paper is
normally resold to other investors through or with the assistance of the issuer
or investment  dealers who make a market in Section 4(2) Commercial Paper, thus
providing liquidity.

     Each Fund,  except the GNMA Trust and the Treasury Money Market Trust, may
also  purchase   restricted   securities  eligible  for  resale  to  "qualified
institutional  buyers"  pursuant to Rule 144A under the  Securities Act of 1933
(Rule 144A Securities). Rule 144A provides a non-exclusive safe harbor from the
registration  requirements of the Securities Act of 1933 for resales of certain
securities to institutional investors.

MUNICIPAL LEASE OBLIGATIONS

The Income Strategy,  Balanced  Strategy,  Growth Strategy,  and Growth and Tax
Strategy Funds may invest in municipal lease obligations,  installment purchase
contract  obligations,  and  certificates of  participation in such obligations
(collectively,  lease  obligations).  A lease  obligation does not constitute a
general  obligation of the  municipality  for which the  municipality's  taxing
power is pledged,  although the lease  obligation is  ordinarily  backed by the
municipality's  covenant  to  budget  for the  payments  due  under  the  lease
obligation.

     Certain  lease  obligations  contain   "non-appropriation"  clauses  which
provide  that the  municipality  has no  obligation  to make  lease  obligation
payments in future  years unless  money is  appropriated  for such purpose on a
yearly basis. Although "non-appropriation" lease obligations are secured by the
leased property,  disposition of the property in the event of foreclosure might
prove difficult.

LIQUIDITY DETERMINATIONS
   
The Board of Trustees has  established  guidelines  pursuant to which Municipal
Lease Obligations,  Section 4(2) Commercial Paper and Rule 144A Securities, and
certain  restricted debt securities  that are subject to  unconditional  put or
demand  features  exercisable  within seven days  (Restricted Put Bonds) may be
determined  to be  liquid  for  purposes  of  complying  with  SEC  limitations
applicable to each Fund's  investments in illiquid  securities.  In determining
the liquidity of Municipal Lease Obligations, Section 4(2) Commercial Paper and
Rule 144A Securities,  the Manager will consider the following  factors,  among

                                       5
<PAGE>

others,  established by the Board of Trustees:  (1) the frequency of trades and
quotes for the security,  (2) the number of dealers willing to purchase or sell
the  security  and  the  number  of  other  potential  purchasers,  (3)  dealer
undertakings  to make a  market  in the  security,  and (4) the  nature  of the
security and the nature of the marketplace trades, including the time needed to
dispose of the security,  the method of soliciting offers, and the mechanics of
transfer.  Additional  factors  considered  by the Manager in  determining  the
liquidity of a municipal lease obligation are: (1) whether the lease obligation
is of a size that will be attractive to  institutional  investors,  (2) whether
the lease  obligation  contains a  non-appropriation  clause and the likelihood
that the  obligor  will fail to make an  appropriation  therefor,  and (3) such
other   factors  as  the  Manager  may   determine   to  be  relevant  to  such
determination.  In  determining  the  liquidity of  Restricted  Put Bonds,  the
Manager  will  evaluate  the credit  quality  of the party  (the Put  Provider)
issuing (or unconditionally  guaranteeing performance on) the unconditional put
or demand  feature of the Restricted Put Bond. In evaluating the credit quality
of the Put  Provider,  the Manager  will  consider  all  factors  that it deems
indicative  of the capacity of the Put Provider to meet its  obligations  under
the Restricted  Put Bond based upon a review of the Put Provider's  outstanding
debt and financial statements and general economic conditions.
    
     Certain  foreign  securities  (including  Eurodollar  obligations)  may be
eligible  for resale  pursuant  to Rule 144A in the United  States and may also
trade without  restriction in one or more foreign markets.  Such securities may
be determined to be liquid based upon these foreign  markets  without regard to
their  eligibility  for resale  pursuant  to Rule 144A.  In such  cases,  these
securities  will not be treated as Rule 144A  securities  for  purposes  of the
liquidity guidelines established by the Board of Trustees.

CALCULATION OF MATURITY FOR FIXED INCOME SECURITIES

A fixed income  security's  maturity is typically  determined on a stated final
maturity basis, although there are some exceptions to the rule.

     If the  issuer  of the  security  has  committed  to take  advantage  of a
maturity shortening device, such as a call, refunding, or redemption provision,
the date on which the instrument will be called,  refunded, or redeemed will be
considered to be its maturity date. Maturities of securities subject to sinking
fund arrangements are determined on a weighted average life basis, which is the
average time for  principal to be repaid.  The weighted  average lives of these
securities will be shorter than their stated final maturities.  A security will
be treated as having a maturity  earlier than its stated  maturity  date if the
security has technical features,  such as a put or demand feature which, in the
judgment of the Manager, will result in the security being valued in the market
as though it has the earlier maturity.

LENDING OF SECURITIES

Each Fund may lend its  securities.  A lending  policy may be authorized by the
Trust's Board of Trustees and implemented by the Manager, but securities may be
loaned only to qualified  broker-dealers or institutional  investors that agree
to maintain cash  collateral with the Trust equal at all times to at least 100%
of the value of the loaned securities.  The Trustees will establish  procedures
and monitor the  creditworthiness  of any institution or  broker-dealer  during
such  times as any loan is  outstanding.  The Trust  will  continue  to receive
interest  on the  loaned  securities  and will  invest the cash  collateral  in
short-term   obligations  of  the  U.S.   Government  or  of  its  agencies  or
instrumentalities  or in  repurchase  agreements,  thereby  earning  additional
interest.

     No loan of securities will be made if, as a result,  the aggregate of such
loans would exceed 33 1/3% of the value of a Fund's total assets. The Trust may
terminate such loans at any time.

FORWARD CURRENCY CONTRACTS

Each Fund, except the Growth and Tax Strategy,  GNMA, and Treasury Money Market
Trusts,  may enter into forward currency  contracts in order to protect against
uncertainty in the level of future foreign  exchange rates. A forward  contract
involves an  agreement  to purchase or sell a specific  currency at a specified
future date or over a  specified  time period at a price set at the time of the
contract.  These contracts are usually traded directly between currency traders
(usually  large  commercial  banks)  and their  customers.  A forward  contract
generally has no deposit requirements, and no commissions are charged.

     The  Funds  may  enter  into   forward   currency   contracts   under  two
circumstances.  First,  when a Fund enters into a contract  for the purchase or
sale of a security  denominated in a foreign  currency,  it may desire to "lock
in" the U.S. dollar price of the security.  By entering into such a contract, a
Fund will be able to protect  itself  against a possible loss resulting from an
adverse  change in the  relationship  between  the U.S.  dollar and the foreign
currency  from the date the  security is purchased or sold to the date on which
payment is made or received.  Second,  when  management of a Fund believes that
the currency of a specific country may deteriorate relative to the U.S. dollar,
it may enter  into a forward  contract  to sell that  currency.  A Fund may not
hedge with  respect to a  particular  currency  for an amount  greater than the
aggregate  market value  (determined  at the time of making any sale of forward
currency) of the securities held in its portfolio  denominated or quoted in, or
bearing a substantial correlation to, such currency.

                                       6
<PAGE>

     The use of forward contracts  involves certain risks. The precise matching
of contract amounts and the value of securities  involved generally will not be
possible  since the future value of such  securities  in  currencies  more than
likely will change  between the date the  contract is entered into and the date
it matures. The projection of short-term currency market movements is extremely
difficult  and  successful  execution  of  a  short-term  hedging  strategy  is
uncertain.  Under  normal  circumstances,  consideration  of the  prospect  for
currency  parities  will  be  incorporated  into  the  longer  term  investment
strategies.  The  Manager  believes  it is  important,  however,  to  have  the
flexibility  to enter into such  contracts when it determines it is in the best
interest of the Funds to do so. It is  impossible  to forecast  what the market
value  of  portfolio  securities  will  be at  the  expiration  of a  contract.
Accordingly,  it may be necessary for the Funds to purchase additional currency
(and bear the expense of such  purchase) if the market value of the security is
less than the amount of currency the Funds are  obligated to deliver,  and if a
decision  is made to sell the  security  and  make  delivery  of the  currency.
Conversely,  it may be necessary to sell some of the foreign currency  received
on the sale of the portfolio security if its market value exceeds the amount of
currency  the Funds are  obligated  to deliver.  The Funds are not  required to
enter into such  transactions  and will not do so unless deemed  appropriate by
the Manager.

     Although the Funds value their  assets each  business day in terms of U.S.
dollars,  they do not  intend to convert  their  foreign  currencies  into U.S.
dollars on a daily basis.  They will do so from time to time, and  shareholders
should be aware of currency conversion costs. Although foreign exchange dealers
do not  charge a fee for  conversion,  they do  realize  a profit  based on the
difference  (spread)  between  the prices at which they are buying and  selling
various currencies.  Thus, a dealer may offer to sell a foreign currency to the
Fund at one rate,  while  offering a lesser  rate of  exchange  should the Fund
desire to resell that currency to the dealer.

WHEN-ISSUED SECURITIES

Each Fund may invest in new issues of debt securities  offered on a when-issued
basis; that is, delivery of and payment for the securities take place after the
date of the  commitment  to  purchase,  normally  within 45 days.  The  payment
obligation  and the interest rate that will be received on the  securities  are
each fixed at the time the buyer  enters into the  commitment.  A Fund may sell
these securities before the settlement date if it is deemed advisable.

     Debt securities purchased on a when-issued basis are subject to changes in
value in the same way that other debt securities held in the Funds'  portfolios
are;  that is, both  generally  experience  appreciation  when  interest  rates
decline and depreciation when interest rates rise. The value of such securities
will also be affected by the public's perception of the creditworthiness of the
issuer and  anticipated  changes  in the level of  interest  rates.  Purchasing
securities on a when-issued  basis involves a risk that the yields available in
the market  when the  delivery  takes  place may  actually be higher than those
obtained  in  the  transaction  itself.   Cash  or  high-quality,   liquid-debt
securities equal to the amount of the when-issued commitments are segregated at
the Fund's custodian bank. The segregated  securities are valued at market, and
daily  adjustments  are  made to keep the  value  of the  cash  and  segregated
securities at least equal to the amount of such commitments by the Fund.

     On the settlement date of the when-issued  securities,  the Fund will meet
its obligations from then available cash, sale of segregated  securities,  sale
of other  securities,  or from sale of the  when-issued  securities  themselves
(which may have a value greater or less than the Trust's payment  obligations).
Sale of securities to meet such obligations carries with it a greater potential
for the realization of capital gains.

INVESTMENTS IN REAL ESTATE INVESTMENT TRUSTS (REITS)

Because the Income Strategy,  Balanced Strategy,  Cornerstone Strategy,  Growth
Strategy, and World Growth Funds may invest a portion of their assets in REITs,
the  Funds  may  also be  subject  to  certain  risks  associated  with  direct
investments  in REITs.  REITs may be  affected by changes in the value of their
underlying  properties  and by defaults by borrowers  or tenants.  Furthermore,
REITs are dependent upon  specialized  management  skills of their managers and
may have limited geographic diversification,  thereby, subjecting them to risks
inherent in financing a limited number of projects.  REITs depend  generally on
their ability to generate cash flow to make distributions to shareholders,  and
certain REITs have  self-liquidation  provisions by which mortgages held may be
paid in full and distributions of capital returns may be made at any time.

PUT AND CALL OPTIONS, FINANCIAL FUTURES CONTRACTS, OPTIONS ON FINANCIAL FUTURES
CONTRACTS

Although the GNMA Trust, Income Strategy,  Balanced Strategy,  Growth Strategy,
and Emerging  Markets Funds are permitted to purchase and sell these  contracts
or options,  the Funds have no current intention of doing so in the coming year
and will not engage in such transactions  without first notifying  shareholders
and supplying further information in each Fund's Prospectus.

                                       7
<PAGE>

TAX-EXEMPT SECURITIES

Tax-exempt  securities  generally include debt obligations issued by states and
their   political   subdivisions,   and  duly   constituted   authorities   and
corporations,  to obtain funds to construct,  repair, or improve various public
facilities such as airports,  bridges, highways,  hospitals,  housing, schools,
streets, and water and sewer works. Tax-exempt securities may also be issued to
refinance  outstanding  obligations  as well as to  obtain  funds  for  general
operating expenses and for loans to other public institutions and facilities.
   
     The two principal  classifications  of tax-exempt  securities are "general
obligations" and "revenue" or "special tax" bonds. General obligation bonds are
secured by the issuer's  pledge of its full faith,  credit and taxing power for
the payment of principal and interest. Revenue or special tax bonds are payable
only  from  the  revenues  derived  from a  particular  facility  or  class  of
facilities  or, in some cases,  from the proceeds of a special  excise or other
tax, but not from general tax revenues. The Funds may also invest in tax-exempt
private activity bonds,  which in most cases are revenue bonds and generally do
not have the pledge of the credit of the issuer.  The payment of the  principal
and  interest  on such  industrial  revenue  bonds is  dependent  solely on the
ability  of the  user of the  facilities  financed  by the  bonds  to meet  its
financial  obligations and the pledge, if any, of real and personal property so
financed as security for such payment. There are, of course, many variations in
the terms of, and the security  underlying  tax-exempt  securities.  Short-term
obligations  issued by states,  cities,  municipalities or municipal  agencies,
include Tax Anticipation Notes,  Revenue  Anticipation Notes, Bond Anticipation
Notes, Construction Loan Notes, and Short-Term Notes.

     The yields of tax-exempt securities depend on, among other things, general
money market conditions,  conditions of the tax-exempt bond market, the size of
a particular  offering,  the maturity of the obligation,  and the rating of the
issue. The ratings of Moody's Investors  Service,  Inc.  (Moody's),  Standard &
Poor's Ratings Group (S&P),  Fitch IBCA, Inc.  (Fitch),  and Duff & Phelps Inc.
represent  their opinions of the quality of the  securities  rated by them, see
APPENDIX A. It should be  emphasized  that such ratings are general and are not
absolute standards of quality. Consequently, securities with the same maturity,
coupon,  and rating may have  different  yields,  while  securities of the same
maturity and coupon but with different ratings may have the same yield. It will
be the responsibility of the Manager to appraise  independently the fundamental
quality of the tax-exempt securities included in a Fund's portfolio.

REPURCHASE AGREEMENTS

Each Fund,  except the Growth and Tax Strategy  Fund,  may invest in repurchase
agreements which are  collateralized by obligations  issued or guaranteed as to
both  principal  and  interest  by  the  U.S.  Government,   its  agencies,  or
instrumentalities.  A repurchase agreement is a transaction in which a security
is purchased  with a  simultaneous  commitment to sell it back to the seller (a
commercial bank or recognized  securities dealer) at an agreed upon price on an
agreed  upon date.  This date is usually not more than seven days from the date
of purchase.  The resale price  reflects the purchase price plus an agreed upon
market rate of  interest,  which is unrelated to the coupon rate or maturity of
the  purchased  security.  The  obligation of the seller to pay the agreed upon
price is in effect  secured by the value of the underlying  security.  In these
transactions,  the securities purchased by a Fund will have a total value equal
to or in excess of the amount of the repurchase  obligation and will be held by
the Fund's custodian until repurchased. If the seller defaults and the value of
the  underlying  security  declines,  the Fund may  incur a loss and may  incur
expenses  in selling  the  collateral.  If the seller  seeks  relief  under the
bankruptcy laws, the disposition of the collateral may be delayed or limited.

TEMPORARY DEFENSIVE POLICY

Each Fund,  except the Treasury  Money Market Trust,  may on a temporary  basis
because of market, economic,  political, or other conditions, invest up to 100%
of its assets in high-quality, short-term debt instruments. Such securities may
consist   of   obligations   of  the   U.S.   Government,   its   agencies   or
instrumentalities,  and  repurchase  agreements  secured  by such  instruments;
certificates  of  deposit  of  domestic  banks  having  capital,  surplus,  and
undivided  profits in excess of $100 million;  banker's  acceptances of similar
banks; commercial paper and other corporate debt obligations.
    
                          SPECIAL RISK CONSIDERATIONS

CURRENCY EXCHANGE RATE FLUCTUATIONS

The Income Strategy, Balanced Strategy,  Cornerstone Strategy, Growth Strategy,
Emerging Markets,  Gold,  International,  and World Growth Funds' assets may be
invested in securities of foreign issuers. Any such investments will be made in
compliance  with U.S. and foreign  currency  restrictions,  tax laws,  and laws
limiting  the amount and types of  foreign  investments.  Pursuit of the Funds'
investment  objectives  will  involve  currencies  of the United  States and of
foreign   countries.   Consequently,   changes  in  exchange  rates,   currency
convertibility, and repatriation requirements may favorably or adversely affect
the Funds.

                                       8
<PAGE>

UNPREDICTABLE POLITICAL, ECONOMIC AND SOCIAL CONDITIONS

     For the Income Strategy,  Balanced Strategy,  Cornerstone Strategy, Growth
Strategy,  Emerging  Markets,  Gold,  International,  and World  Growth  Funds,
investing in securities  of foreign  issuers  presents  certain other risks not
present in domestic investments, including different accounting, reporting, and
disclosure  requirements  for foreign  issuers,  possible  political  or social
instability,  including policies of foreign  governments which may affect their
respective  equity  markets,  and  foreign  taxation   requirements   including
withholding taxes.

                            INVESTMENT RESTRICTIONS

The following  investment  restrictions have been adopted by the Trust for each
Fund. These restrictions may not be changed for any given Fund without approval
by the lesser of (1) 67% or more of the voting securities  present at a meeting
of the Fund if more than 50% of the outstanding  voting  securities of the Fund
are  present  or  represented  by  proxy or (2)  more  than 50% of that  Fund's
outstanding voting securities. The investment restrictions of one Fund may thus
be changed without affecting those of any other Fund.

     Under the restrictions,  each of the Growth and Tax Strategy,  Cornerstone
Strategy, Gold, International, and World Growth Funds may not:

 (1)  With respect to 75% of its total assets,  purchase the  securities of any
      issuer (except U.S. Government Securities, as such term is defined in the
      Investment  Company Act of 1940,  as amended (1940 Act)) if, as a result,
      the Fund would own more than 10% of the outstanding  voting securities of
      such issuer or the Fund would have more than 5% of the value of its total
      assets invested in the securities of such issuer.

 (2)  Borrow money, except for temporary or emergency purposes in an amount not
      exceeding 33 1/3% of its total  assets  (including  the amount  borrowed)
      less liabilities (other than borrowings).

 (3)  Lend any  securities or make any loan if, as a result,  more than 33 1/3%
      of its total  assets  would be lent to other  parties,  except  that this
      limitation  does  not  apply  to  purchases  of  debt  securities  or  to
      repurchase agreements.

 (4)  Underwrite securities of other issuers,  except to the extent that it may
      be deemed to act as a statutory  underwriter in the  distribution  of any
      restricted securities or not readily marketable securities.

 (5)  Purchase  securities on margin or sell securities  short,  except that it
      may obtain such short-term  credits as are necessary for the clearance of
      securities transactions.

 (6)  Invest in put, call, straddle, or spread options or interests in oil, gas
      or other mineral exploration or development programs,  except that it may
      purchase  securities of issuers whose principal business  activities fall
      within  such  areas in  accordance  with its  investment  objectives  and
      policies.

 (7)  Invest more than 2% of the market value of its total assets in marketable
      warrants  to  purchase  common  stock.  Warrants  initially  attached  to
      securities and acquired by a Fund upon original issuance thereof shall be
      deemed to be without value.

 (8)  Purchase or sell real estate or  partnership  interests  therein,  except
      that the  Cornerstone  Strategy Fund may purchase  securities  secured by
      real estate  interests  or interests  therein,  or issued by companies or
      investment trusts which invest in real estate or interests therein.

  (9) Purchase or sell commodities or commodity contracts.

 (10) Purchase securities of other open-end investment companies, except a Fund
      may  invest up to 10% of the  market  value of its  total  assets in such
      securities  through purchases in the open market involving only customary
      broker's  commissions  or in  connection  with a  merger,  consolidation,
      reorganization, or acquisition of assets approved by the shareholders.

 (11) Invest  more  than 5% of the  market  value of its  total  assets  in any
      closed-end  investment  company  and will not  hold  more  than 3% of the
      outstanding voting stock of any closed-end investment company.

 (12) Change  the  nature of its  business  so as to cease to be an  investment
      company.

 (13) Issue senior  securities as defined in the 1940 Act,  except as permitted
      by Section 18(f)(2) and rules thereunder.

 (14) Invest more than 25% of its total assets in one industry.

     For purposes of  restriction  8 above,  interests in publicly  traded Real
Estate  Investment  Trusts  (REITs)  are  not  deemed  to  be  real  estate  or
partnership interests therein.

Each of the GNMA and Treasury Money Market Trusts may not:

 (1)  With respect to 75% of its total assets,  purchase the  securities of any
      issuer (except U.S. Government Securities, as such term is defined in the
      1940  Act) if,  as a  result,  the Fund  would  own more  than 10% of the
      outstanding  voting securities of such issuer or the Fund would have more
      than 5% of the value of its total assets  invested in the  securities  of
      such issuer.

                                       9
<PAGE>

 (2)  Borrow money, except for temporary or emergency purposes in an amount not
      exceeding 33 1/3% of its total  assets  (including  the amount  borrowed)
      less liabilities (other than borrowings).

 (3)  Lend any  securities or make any loan if, as a result,  more than 33 1/3%
      of its total  assets  would be lent to other  parties,  except  that this
      limitation  does  not  apply  to  purchases  of  debt  securities  or  to
      repurchase agreements.

 (4)  Underwrite securities of other issuers,  except to the extent that it may
      be deemed to act as a statutory  underwriter in the  distribution  of any
      restricted securities or not readily marketable securities.

 (5)  Change  the  nature of its  business  so as to cease to be an  investment
      company.

 (6)  Issue senior  securities as defined in the 1940 Act,  except as permitted
      by Section 18(f)(2) and rules thereunder.

 (7)  Purchase or sell real estate, commodities or commodity contracts,  except
      that the GNMA Trust may invest in financial futures contracts and options
      thereon.

 (8)  Purchase  any security if  immediately  after the purchase 25% or more of
      the value of its total assets will be invested in  securities  of issuers
      principally engaged in a particular industry (except that such limitation
      does not apply to obligations issued or guaranteed by the U.S. Government
      or its agencies or instrumentalities).

The Emerging Markets Fund may not:

 (1)  With respect to 75% of its total assets,  purchase the  securities of any
      issuer (except U.S. Government Securities, as such term is defined in the
      1940 Act) if, as a result,  it would own more than 10% of the outstanding
      voting  securities  of such  issuer or it would  have more than 5% of the
      value of its total assets invested in the securities of such issuer.

 (2)  Borrow money,  except that it may borrow money for temporary or emergency
      purposes  in an  amount  not  exceeding  33  1/3%  of  its  total  assets
      (including the amount borrowed) less liabilities (other than borrowings),
      nor will it  purchase  securities  when its  borrowings  exceed 5% of its
      total assets.

 (3)  Concentrate its investments in any one industry although it may invest up
      to 25% of the value of its total  assets in any one  industry;  provided,
      this limitation does not apply to securities  issued or guaranteed by the
      U.S. Government or its corporate instrumentalities.

 (4)  Issue senior securities, except as permitted under the 1940 Act.

 (5)  Underwrite securities of other issuers,  except to the extent that it may
      be deemed to act as a statutory  underwriter in the  distribution  of any
      restricted securities or not readily marketable securities.

 (6)  Lend any  securities or make any loan if, as a result,  more than 33 1/3%
      of its total  assets  would be lent to other  parties,  except  that this
      limitation  does  not  apply  to  purchases  of  debt  securities  or  to
      repurchase agreements.

 (7)  Purchase  or sell  commodities,  except  that  the  Fund  may  invest  in
      financial futures contracts, options thereon, and similar instruments.

 (8)  Purchase or sell real estate unless  acquired as a result of ownership of
      securities  or other  instruments,  except  that the Fund may  invest  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.

Each  of the Income Strategy,  Balanced Strategy, and Growth Strategy Funds may
not:

 (1)  With respect to 75% of its total assets,  purchase the  securities of any
      issuer (except U.S. Government Securities, as such term is defined in the
      1940 Act) if, as a result,  it would own more than 10% of the outstanding
      voting  securities  of such  issuer or it would  have more than 5% of the
      value of its total assets invested in the securities of such issuer.

 (2)  Borrow money, except for temporary or emergency purposes in an amount not
      exceeding 33 1/3% of its total  assets  (including  the amount  borrowed)
      less liabilities (other than borrowings).

 (3)  Concentrate its investments in any one industry although it may invest up
      to 25% of the value of its total  assets in any one  industry;  provided,
      this limitation does not apply to securities  issued or guaranteed by the
      U.S. Government and its agencies or instrumentalities.

 (4)  Issue senior securities, except as permitted under the 1940 Act.

 (5)  Underwrite securities of other issuers,  except to the extent that it may
      be deemed to act as a statutory  underwriter in the  distribution  of any
      restricted securities or not readily marketable securities.

 (6)  Lend any  securities or make any loan if, as a result,  more than 33 1/3%
      of its total  assets  would be lent to other  parties,  except  that this
      limitation  does  not  apply  to  purchases  of  debt  securities  or  to
      repurchase agreements.

 (7)  Purchase  or sell  commodities,  except  that  each  Fund may  invest  in
      financial futures contracts, options thereon, and similar instruments.

                                      10
<PAGE>

 (8)  Purchase or sell real estate unless  acquired as a result of ownership of
      securities  or other  instruments,  except  that each Fund may  invest 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.

With  respect to each Fund's  concentration  policies as described  above,  the
Manager  uses  industry  classifications  for  industries  based on  categories
established  by Standard & Poor's  Corporation  (S&P) for the Standard & Poor's
500  Composite  Index,  with  certain  modifications.  Because  the Manager has
determined that certain  categories  within, or in addition to, those set forth
by S&P  have  unique  investment  characteristics,  additional  industries  are
included  as  industry   classifications.   The  Manager  classifies  municipal
obligations by projects with similar characteristics, such as toll road revenue
bonds,  housing revenue bonds or higher  education  revenue bonds. In addition,
the  Cornerstone  Strategy  Fund  may not  concentrate  investments  in any one
industry,  although it may invest up to 25% of the value of its total assets in
one  industry;  the Basic Value Stocks,  Foreign  Stocks,  and U.S.  Government
Securities  investment  categories  are  not  considered  industries  for  this
purpose.

ADDITIONAL RESTRICTION
   
The following  restriction is not considered to be a fundamental  policy of the
Funds.  The Board of Trustees may change this  additional  restriction  without
notice to or approval by the shareholders.

     Under the additional  restriction,  each of the Funds may not purchase any
security while borrowings  representing more than 5% of the Fund's total assets
are outstanding.
    
                             PORTFOLIO TRANSACTIONS

The Manager,  pursuant to the Advisory  Agreement dated September 21, 1990, and
subject to the general  control of the Trust's  Board of  Trustees,  places all
orders for the purchase  and sale of Fund  securities.  In executing  portfolio
transactions  and selecting  brokers and dealers,  it is the Trust's  policy to
seek the best overall terms available.  The Manager shall consider such factors
as it deems relevant,  including the breadth of the market in the security, the
financial  condition and execution  capability of the broker or dealer, and the
reasonableness of the commission,  if any, for the specific transaction or on a
continuing basis.  Securities purchased or sold in the over-the-counter  market
will be executed through  principal market makers,  except when, in the opinion
of the Manager, better prices and execution are available elsewhere.

     The Funds will have no  obligation to deal with any  particular  broker or
group  of  brokers  in the  execution  of  portfolio  transactions.  The  Funds
contemplate  that,  consistent with obtaining the best overall terms available,
brokerage  transactions  may be effected  through USAA  Brokerage  Services,  a
discount  brokerage  service of the Manager.  The Trust's Board of Trustees has
adopted procedures in conformity with Rule 17e-1 under the 1940 Act designed to
ensure that all  brokerage  commissions  paid to USAA  Brokerage  Services  are
reasonable  and fair. The Trust's Board of Trustees has authorized the Manager,
as a member of the Chicago Stock Exchange, to effect portfolio transactions for
the Funds on such exchange and to retain  compensation  in connection with such
transactions.  Any such transactions will be effected and related  compensation
paid only in accordance with applicable SEC regulations.

     In the  allocation of brokerage  business used to purchase  securities for
the Income Strategy,  Growth and Tax Strategy,  Balanced Strategy,  Cornerstone
Strategy,  Growth Strategy,  Emerging Markets, Gold,  International,  and World
Growth  Funds,  preference  may be given to those  broker-dealers  who  provide
research or other  services to the Manager as long as there is no  sacrifice in
obtaining the best overall terms  available.  Such research and other  services
may include,  for  example:  advice  concerning  the value of  securities,  the
advisability  of  investing  in,  purchasing,  or selling  securities,  and the
availability of securities or the purchasers or sellers of securities; analyses
and reports concerning issuers,  industries,  securities,  economic factors and
trends,  portfolio strategy, and performance of accounts; and various functions
incidental  to  effecting  securities  transactions,   such  as  clearance  and
settlement.  In return for such  services,  a Fund may pay to a broker a higher
commission  than may be charged by other  brokers,  provided  that the  Manager
determines in good faith that such  commission is reasonable in relation to the
value of the brokerage and research services provided by such broker, viewed in
terms of either that particular transaction or of the overall responsibility of
the  Manager  to the Funds  and its other  clients.  The  Manager  continuously
reviews the  performance of the  broker-dealers  with whom it places orders for
transactions.   The  receipt  of  research  from  broker-dealers  that  execute
transactions  on behalf of the Trust may be useful to the Manager in  rendering
investment  management  services to other clients (including  affiliates of the
Manager),  and conversely,  such research provided by  broker-dealers  who have
executed  transaction  orders on behalf of other  clients  may be useful to the
Manager in carrying out its  obligations  to the Trust.  While such research is
available to and may be used by the Manager in providing  investment  advice to
all its clients (including affiliates of the Manager), not all of such research
may be used by the  Manager  for the benefit of the Trust.  Such  research  and
services  will be in  addition  to and not in lieu  of  research  and  services
provided by the Manager,  and the expenses of the Manager will not  necessarily
be  reduced by the  receipt  of such  supplemental  research.  See THE  TRUST'S
MANAGER.

                                      11
<PAGE>

     Securities of the same issuer may be purchased,  held, or sold at the same
time by the Trust for any or all of its Funds,  or other  accounts or companies
for which the Manager acts as the investment adviser  (including  affiliates of
the  Manager).  On occasions  when the Manager  deems the purchase or sale of a
security  to be in the best  interest  of the Trust,  as well as the  Manager's
other  clients,  the Manager,  to the extent  permitted by applicable  laws and
regulations,  may  aggregate  such  securities  to be sold or purchased for the
Trust with those to be sold or purchased for other customers in order to obtain
best  execution  and  lower  brokerage  commissions,  if any.  In  such  event,
allocation  of the  securities  so purchased  or sold,  as well as the expenses
incurred  in the  transaction,  will be made by the  Manager  in the  manner it
considers to be most equitable and consistent with its fiduciary obligations to
all such customers,  including the Trust. In some instances, this procedure may
impact the price and size of the position obtainable for the Trust.

     The Trust pays no brokerage  commissions as such for debt securities.  The
market for such securities is typically a "dealer"  market in which  investment
dealers buy and sell the  securities  for their own  accounts,  rather than for
customers,  and the price may  reflect a  dealer's  mark-up  or  mark-down.  In
addition, some securities may be purchased directly from issuers.

BROKERAGE COMMISSION

During the last three  fiscal  years,  the Funds paid the  following  brokerage
fees:
   
       FUND                     1996            1997            1998
       ----                     ----            ----            ----
  Income Strategy            $    3,434*     $    2,820      $    7,690
  Growth and Tax Strategy    $   58,596      $   81,456      $   50,508
  Balanced Strategy          $   16,908*     $   13,006      $   29,977
  Cornerstone Strategy       $1,560,138      $1,428,772      $1,466,734
  Growth Strategy            $  104,911*     $  230,440      $  247,249
  Emerging Markets           $  394,696      $  484,792      $1,578,101
  Gold                       $  224,458      $  225,284      $  165,197
  International              $1,551,078      $1,362,389      $1,317,048
  World Growth               $  709,486      $  558,990      $  586,870
- ---------------------
*For the nine-month period ended May 31, 1996.
    
During the last three fiscal years, the Funds paid the following brokerage fees
to USAA Brokerage Services, a discount brokerage service of the Manager:
   
       FUND                     1996            1997            1998**
       ----                     ----            ----            ------
  Income Strategy            $    216*       $     454       $     802
  Growth and Tax Strategy    $    400        $  15,356       $   3,976
  Balanced Strategy          $    632*       $   1,132       $   2,168
  Cornerstone Strategy       $  4,000        $  11,878       $   6,200
  Growth Strategy            $    556*       $  10,580       $   8,951
  Emerging Markets                 -         $     240             -
  World Growth               $    928        $   2,380       $   2,800
    
- ---------------------
   * For the nine-month period ended May 31, 1996.
   
  ** These  amounts  are  10.43%,  7.87%,  7.23%,  .42%,  3.62%,  0%, and .48%,
     respectively, of brokerage fees paid by each Fund.

For the year ended May 31, 1998,  14.53%,  13.54%,  11.58%,  1.69%,  6.42%, and
1.40%, of the aggregate dollar amounts of transactions involving the payment of
commissions by the Income Strategy, Growth and Tax Strategy, Balanced Strategy,
Cornerstone Strategy,  Growth Strategy,  and World Growth Funds,  respectively,
were effected through USAA Brokerage Services.

     The Manager  directed a portion of the Funds'  brokerage  transactions  to
certain broker-dealers that provided the Manager with research, statistical and
other  information.  Such  transactions  amounted to  $1,714,402,  $17,397,006,
$5,270,781, $14,635,132,  $14,253,575,  $2,101,794, $5,109,536, and $5,462,113,
and the related brokerage commissions or underwriting  commissions were $1,820,
$29,263, $5,663, $22,625,  $17,785, $4,505, $14,730, and $10,327 for the Income
Strategy,  Growth and Tax Strategy,  Balanced Strategy,  Cornerstone  Strategy,
Growth  Strategy,  Emerging  Markets,  International,  and World Growth  Funds,
respectively, for the year ended May 31, 1998.
    
PORTFOLIO TURNOVER RATES

The rate of  portfolio  turnover in any of the Funds  (other than the  Treasury
Money  Market  Trust)  will not be a limiting  factor  when the  Manager  deems
changes in a Fund's portfolio  appropriate in view of its investment objective.
Although no Fund will purchase or sell securities solely to achieve  short-term
trading  profits,  a Fund may sell portfolio  securities  without regard to the
length of time held if  consistent  with the  Fund's  investment  objective.  A
higher degree of equity portfolio  activity will increase  brokerage costs to a
Fund. It is not  anticipated  that the portfolio  turnover  rates of the Income
Strategy, Growth and Tax

                                      12
<PAGE>

Strategy,  Balanced Strategy,  Cornerstone Strategy, Growth Strategy,  Emerging
Markets,  Gold,  International,  and World  Growth Funds or the GNMA Trust will
exceed 100%.

     The  portfolio  turnover rate is computed by dividing the dollar amount of
securities  purchased or sold  (whichever  is smaller) by the average  value of
securities  owned during the year.  Short-term  investments  such as commercial
paper  and  short-term  U.S.  Government  securities  are not  considered  when
computing the turnover rate.

     For the last two fiscal years, the Funds' portfolio turnover rates were as
follows:
   
        FUND                          1997         1998
        ----                          ----         ----
     Income Strategy                  64.71%        7.15%
     Growth and Tax Strategy 1       194.21%       65.58%
     Balanced Strategy                28.06%       22.18%
     Cornerstone Strategy             35.14%       32.73%
     Growth Strategy                  62.50%       69.42%
     Emerging Markets                 61.21%       41.23%
     Gold                             26.40%       19.62%
     International                    46.03%       42.97%
     World Growth                     50.02%       45.04%
     GNMA Trust                       77.82%       60.85%
- -----------
    
  1  The Fund has simultaneously purchased and sold the same securities.  These
     transactions  have at times  been high in volume and  dissimilar  to other
     trade activity within the Fund. If these  transactions  were excluded from
     the calculation, the portfolio turnover rate would have been as follows:
   
                                                           YEAR ENDED MAY 31,
                                                           ------------------
                                                           1997         1998
                                                           ----         ----
     Portfolio turnover(%)                                  52.97       31.58
     Purchases and sales of this type are as follows:
       Purchases (000)                                   $220,402      68,958
       Sales (000)                                       $220,683      69,044

                          DESCRIPTION OF SHARES

The Funds are series of the Trust and are diversified. The Trust is an open-end
management investment company established under the laws of the Commonwealth of
Massachusetts pursuant to the First Amended and Restated Master Trust Agreement
(Master  Trust  Agreement),  dated  June 2,  1995,  as  amended.  The  Trust is
authorized  to issue  shares of  beneficial  interest in  separate  portfolios.
Eleven such portfolios have been  established  which are described in this SAI.
Under the Master Trust Agreement, the Board of Trustees is authorized to create
new  portfolios in addition to those already  existing  without the approval of
the  shareholders of the Trust.  The  Cornerstone  Strategy and Gold Funds were
established May 9, 1984, by the Board of Trustees and commenced public offering
of their shares on August 15, 1984.  The  International  Fund,  established  on
November 4, 1987, commenced public offering of its shares on July 11, 1988. The
Growth and Tax Strategy Fund was established on November 3, 1988, and commenced
public  offering of its shares on January 11,  1989.  On November 7, 1990,  the
Board of Trustees  established  the GNMA Trust and Treasury  Money Market Trust
and commenced  public  offering of their shares on February 1, 1991.  The World
Growth Fund was established on July 21, 1992, and commenced  public offering of
its shares on October 1, 1992.  The Emerging  Markets Fund was  established  on
September 7, 1994, and commenced  public  offering of its shares on November 7,
1994. The Income Strategy,  Balanced  Strategy,  and Growth Strategy Funds were
established on June 2, 1995, and commenced  public  offering of their shares on
September 1, 1995.
    
     Each  Fund's  assets,  and all  income,  earnings,  profits  and  proceeds
thereof, subject only to the rights of creditors, are specifically allocated to
each Fund. They constitute the underlying  assets of each Fund, are required to
be segregated on the books of account,  and are to be charged with the expenses
of such Fund.  Any general  expenses of the Trust not readily  identifiable  as
belonging  to a  particular  Fund are  allocated  on the  basis  of the  Funds'
relative  net  assets  during the  fiscal  year or in such other  manner as the
Trustees determine to be fair and equitable. Each share of each Fund represents
an equal  proportionate  interest  in that Fund with every  other  share and is
entitled to such dividends and  distributions out of the net income and capital
gains belonging to that Fund when declared by the Trustees. Upon liquidation of
that  Fund,  shareholders  are  entitled  to share  pro rata in the net  assets
belonging to such Fund available for distribution.
   
     Under the Trust's Master Trust Agreement,  no annual or regular meeting of
shareholders is required. Thus, there will ordinarily be no shareholder meeting
unless  otherwise  required  by the  1940  Act.  Under  certain  circumstances,
however, shareholders may apply to the Trustees for shareholder information in

                                      13
<PAGE>

order to obtain signatures to request a shareholder meeting. The Trust may fill
vacancies  on the Board or appoint new  Trustees if the result is that at least
two-thirds of the Trustees have still been elected by  shareholders.  Moreover,
pursuant to the Master Trust Agreement,  any Trustee may be removed by the vote
of two-thirds of the outstanding Trust shares and holders of 10% or more of the
outstanding  shares of the  Trust can  require  Trustees  to call a meeting  of
shareholders  for the purpose of voting on the removal of one or more Trustees.
The Trust will assist in communicating to other shareholders about the meeting.
On any  matter  submitted  to the  shareholders,  the  holder  of any  share is
entitled  to one vote per  share  (with  proportionate  voting  for  fractional
shares)  regardless  of the  relative  net asset  values of the Funds'  shares.
However,  on matters  affecting  an  individual  Fund,  a separate  vote of the
shareholders of that Fund is required. For example, the Advisory Agreement must
be approved  separately by each Fund and only becomes effective with respect to
a Fund  when a  majority  of the  outstanding  voting  securities  of that Fund
approves  it.  Shareholders  of a Fund are not  entitled  to vote on any matter
which does not affect that Fund but which  requires a separate  vote of another
Fund.  For  example,  a  proposed  change  in the  investment  objectives  of a
particular  Fund  would  require  the  affirmative  vote of a  majority  of the
outstanding voting securities of only that Fund.
    
     Shares  do  not  have  cumulative  voting  rights,  which  means  that  in
situations in which  shareholders  elect Trustees,  holders of more than 50% of
the shares  voting for the  election of Trustees can elect 100% of the Board of
Trustees,  and the  holders  of less  than  50% of the  shares  voting  for the
election of Trustees will not be able to elect any person as a Trustee.

     When issued,  each Fund's shares are fully paid and  nonassessable  by the
Trust, have no preemptive or subscription  rights, and are fully  transferable.
There are no conversion rights.

                               TAX CONSIDERATIONS

TAXATION OF THE FUNDS

Each Fund intends to qualify as a regulated investment company under Subchapter
M of the  Internal  Revenue Code of 1986,  as amended (the Code).  Accordingly,
each  Fund will not be liable  for  federal  income  taxes on its  taxable  net
investment  income and net capital  gains  (capital  gains in excess of capital
losses)  that  are  distributed  to  shareholders,   provided  that  each  Fund
distributes  at  least  90% of its net  investment  income  and net  short-term
capital gain for the taxable year.
   
     To qualify as a regulated  investment  company,  a Fund must,  among other
things,  (1) derive in each  taxable year at least 90% of its gross income from
dividends,  interest, payments with respect to securities loans, gains from the
sale or other disposition of stock, securities or foreign currencies,  or other
income  derived  with  respect to its  business  of  investing  in such  stock,
securities,   or   currencies   (the  90%   test)  and  (2)   satisfy   certain
diversification  requirements,  at the  close  of each  quarter  of the  Fund's
taxable year.  In the case of the Growth and Tax Strategy  Fund, in order to be
entitled to pay exempt-interest dividends to shareholders, at the close of each
quarter of its  taxable  year,  at least 50% of the value of the  Fund's  total
assets must consist of obligations the interest of which is exempt from federal
income  tax.  The  Growth  and  Tax  Strategy  Fund  intends  to  satisfy  this
requirement.
    
     The Code imposes a nondeductible  4% excise tax on a regulated  investment
company that fails to  distribute  during each calendar year an amount at least
equal  to the sum of (1)  98% of its  taxable  net  investment  income  for the
calendar  year,  (2) 98% of its  capital  gain net income for the  twelve-month
period  ending on October 31, and (3) any prior amounts not  distributed.  Each
Fund intends to make such distributions as are necessary to avoid imposition of
excise tax.
   
     The Income  Strategy,  Balanced  Strategy,  Cornerstone  Strategy,  Growth
Strategy,  Emerging  Markets,  Gold,  International,  and World  Growth  Funds'
ability to make certain  investments  may be limited by  provisions of the Code
that  require  inclusion  of certain  unrealized  gains or losses in the Fund's
income for purposes of the 90% test, and the  distribution  requirements of the
Code, and by provisions of the Code that characterize certain income or loss as
ordinary  income or loss rather than  capital gain or loss.  Such  recognition,
characterization  and timing rules  generally  apply to  investments in certain
forward currency contracts,  foreign currencies and debt securities denominated
in foreign currencies, as well as certain other investments.
    
     If the Income Strategy,  Balanced Strategy,  Cornerstone Strategy,  Growth
Strategy,  Emerging Markets, Gold, International,  or World Growth Funds invest
in an entity  that is  classified  as a "passive  foreign  investment  company"
(PFIC) for federal income tax purposes,  the application of certain  provisions
of the Code applying to PFICs could result in the imposition of certain federal
income  taxes on the  Fund.  It is  anticipated  that any  taxes on a Fund with
respect to investments in PFICs would be insignificant.

TAXATION OF THE SHAREHOLDERS

Taxable  distributions are generally  included in a shareholder's  gross income
for the taxable year in which they are received. Dividends declared in October,
November,  or December  and made  payable to  shareholders  of record in such a
month will be deemed to have been received on December 31, if a Fund pays

                                      14
<PAGE>
the dividend during the following January.  If a shareholder of a Fund receives
a  distribution  taxable as long-term  capital gain with respect to shares of a
Fund and redeems or exchanges  the shares before he has held them for more than
six months,  any loss on the  redemption or exchange that is less than or equal
to the amount of the  distribution  will be treated as long-term  capital loss,
except as noted below.

     In the case of the Growth and Tax Strategy Fund, if a shareholder receives
an  exempt-interest  dividend with respect to any share and such share has been
held for six  months or less,  any loss on the sale or  exchange  of such share
will be disallowed to the extent of such exempt-interest dividend. Shareholders
who  are  recipients  of  Social   Security   benefits  should  be  aware  that
exempt-interest  dividends  received  from the Growth and Tax Strategy Fund are
includible  in  their   "modified   adjusted  gross  income"  for  purposes  of
determining  the amount of such  Social  Security  benefits,  if any,  that are
required to be included in their gross income.

     The Growth and Tax  Strategy  Fund may invest in private  activity  bonds.
Interest on certain  private  activity bonds issued after August 7, 1986, is an
item of tax  preference  for  purposes of the Federal  Alternative  Minimum Tax
(AMT),  although the interest  continues to be excludable from gross income for
other purposes. AMT is a supplemental tax designed to ensure that taxpayers pay
at least a minimum amount of tax on their income, even if they make substantial
use of certain tax  deductions  and  exclusions  (referred to as tax preference
items). Interest from private activity bonds is one of the tax preference items
that is added to income  from other  sources for the  purposes  of  determining
whether a taxpayer is subject to AMT and the amount of any tax to be paid.

     Opinions relating to the validity of the tax-exempt  securities  purchased
for the Growth and Tax Strategy Fund and the exemption of interest thereon from
federal  income tax are  rendered by  recognized  bond  counsel to the issuers.
Neither the Manager's  nor the Fund's  counsel makes any review of the basis of
such opinions.

     The exemption of interest  income for federal income tax purposes does not
necessarily result in exemption under the income or other tax laws of any state
or local taxing authority.  Shareholders of a Fund may be exempt from state and
local  taxes on  distributions  of  tax-exempt  interest  income  derived  from
obligations of the state and/or municipalities of the state in which they are a
resident,  but generally are subject to tax on income derived from  obligations
of other  jurisdictions.  Shareholders  should consult their tax advisers about
the status of distributions from a Fund in their own states and localities.

                       TRUSTEES AND OFFICERS OF THE TRUST
   
The Board of Trustees of the Trust consists of seven Trustees who supervise the
business affairs of the Trust. Set forth below are the Trustees and officers of
the Trust, and their respective  offices and principal  occupations  during the
last five years.  Unless otherwise  indicated,  the business address of each is
9800 Fredericksburg Road, San Antonio, TX 78288.

Robert G. Davis 1, 2
Trustee and Chairman of the Board of Trustees
Age: 51

Deputy Chief Executive Officer for Capital  Management of USAA  (6/98-present);
President, Chief Executive Officer, Director, and Vice Chairman of the Board of
Directors  of USAA  Capital  Corporation  and several of its  subsidiaries  and
affiliates  (1/97-present);  President,  Chief Executive Officer, Director, and
Chairman of the Board of Directors of USAA  Financial  Planning  Network,  Inc.
(1/97-present);  Executive Vice President,  Chief Operating Officer,  Director,
and Vice Chairman of the Board of Directors of USAA Financial Planning Network,
Inc.  (9/96-1/97);  Special Assistant to Chairman,  United Services  Automobile
Association (USAA)  (6/96-12/96);  President and Chief Executive Officer,  Banc
One Credit Corporation (12/95-6/96); and President and Chief Executive Officer,
Banc One Columbus,  (8/91-12/95).  Mr. Davis serves as a  Trustee/Director  and
Chairman of the Boards of  Trustees/Directors  of each of the  remaining  funds
within  the USAA  Family of  Funds;  Director  and  Chairman  of the  Boards of
Directors  of USAA  Investment  Management  Company  (IMCO),  USAA  Shareholder
Account Services, USAA Federal Savings Bank, and USAA Real Estate Company.

Michael J.C. Roth 1, 2
Trustee, President, and Vice Chairman of the Board of Trustees
Age: 57

Chief Executive Officer, IMCO (10/93-present);  President,  Director,  and Vice
Chairman of the Board of  Directors,  IMCO  (1/90-present).  Mr. Roth serves as
President,   Trustee/Director,   and   Vice   Chairman   of   the   Boards   of
Trustees/Directors  of each of the  remaining  funds  within the USAA Family of
Funds and USAA Shareholder  Account  Services;  Director of USAA Life Insurance
Company; and Trustee and Vice Chairman of USAA Life Investment Trust.

                                      15
<PAGE>

John W. Saunders, Jr. 1, 2, 4
Trustee and Vice President
Age: 63

Senior Vice President,  Fixed Income  Investments,  IMCO  (10/85-present).  Mr.
Saunders serves as a Trustee/Director of each of the remaining funds within the
USAA  Family  of  Funds;  Director  of  IMCO;  Senior  Vice  President  of USAA
Shareholder Account Services; and Vice President of USAA Life Investment Trust.

Barbara B. Dreeben 3, 4, 5
200 Patterson #1008
San Antonio, TX 78209
Trustee
Age: 53

President,   Postal  Addvantage  (7/92-present);   Consultant,   Nancy  Harkins
Stationer  (8/91-12/95).  Mrs. Dreeben serves as a Trustee/Director  of each of
the remaining funds within the USAA Family of Funds.

Howard L. Freeman, Jr. 2, 3, 4, 5
2710 Hopeton
San Antonio, TX 78230
Trustee
Age: 63

Retired. Assistant General Manager for Finance, San Antonio City Public Service
Board  (1976-1996).  Mr.  Freeman serves as a  Trustee/Director  of each of the
remaining funds within the USAA Family of Funds.

Robert L. Mason, Ph.D. 3, 4, 5
12823 Queens Forest
San Antonio, TX 78230
Trustee
Age: 52

Manager,   Statistical   Analysis   Section,   Southwest   Research   Institute
(8/75-present). Dr. Mason serves as a Trustee/Director of each of the remaining
funds within the USAA Family of Funds.

Richard A. Zucker 3, 4, 5
407 Arch Bluff
San Antonio, TX 78216
Trustee
Age: 55

Vice President, Beldon Roofing and Remodeling (1985-present). Mr. Zucker serves
as a Trustee/Director  of each of the remaining funds within the USAA Family of
Funds.

Michael D. Wagner 1
Secretary
Age: 50

Vice President,  Corporate Counsel,  USAA  (1982-present).  Mr. Wagner has held
various positions in the legal department of USAA since 1970 and serves as Vice
President,  Secretary, and Counsel, IMCO and USAA Shareholder Account Services;
Secretary of each of the remaining  funds within the USAA Family of Funds;  and
Vice President,  Corporate  Counsel,  for various other USAA  subsidiaries  and
affiliates.

Alex M. Ciccone 1
Assistant Secretary
Age: 48

Vice  President,  Compliance,  IMCO  (12/94-present);  Vice President and Chief
Operating Officer,  Commonwealth  Shareholder Services  (6/94-11/94);  and Vice
President,  Compliance,  IMCO  (12/91-5/94).  Mr.  Ciccone  serves as Assistant
Secretary of each of the remaining funds within the USAA Family of Funds.

                                      16
<PAGE>

Mark S. Howard 1
Assistant Secretary
Age: 34

Assistant Vice President,  Securities Counsel,  USAA (2/98-present);  Executive
Director,  Securities  Counsel,  USAA  (9/96-2/98);  Senior Associate  Counsel,
Securities  Counsel,  USAA  (5/95-8/96);  Attorney,  Kirkpatrick & Lockhart LLP
(9/90-4/95).  Mr.  Howard  serves as Assistant  Vice  President  and  Assistant
Secretary,  IMCO and USAA Shareholder Account Services;  Assistant Secretary of
each of the remaining funds within the USAA Family of Funds; and Assistant Vice
President,   Securities   Counsel  for  various  other  USAA  subsidiaries  and
affiliates.

Sherron A. Kirk 1
Treasurer
Age: 53

Vice President, Controller, IMCO (10/92-present). Mrs. Kirk serves as Treasurer
of each of the  remaining  funds  within  the USAA  Family of  Funds;  and Vice
President, Controller of USAA Shareholder Account Services.

Caryl Swann 1
Assistant Treasurer
Age: 50

Director,  Mutual  Fund  Portfolio  Analysis  & Support,  IMCO  (2/98-present);
Manager,  Mutual  Fund  Accounting,  IMCO  (7/92-2/98).  Ms.  Swann  serves  as
Assistant  Treasurer for each of the remaining  funds within the USAA Family of
Funds.
    
- -----------
1  Indicates  those  Trustees and officers who are  employees of the Manager or
   affiliated companies and are considered  "interested persons" under the 1940
   Act.
2  Member of Executive Committee
3  Member of Audit Committee
4  Member of Pricing and Investment Committee
5  Member of Corporate Governance Committee

     Between the  meetings of the Board of Trustees  and while the Board is not
in session, the Executive Committee of the Board of Trustees has all the powers
and may exercise all the duties of the Board of Trustees in the  management  of
the  business  of the Trust  which may be  delegated  to it by the  Board.  The
Pricing and  Investment  Committee  of the Board of Trustees  acts upon various
investment-related  issues and other matters which have been delegated to it by
the Board.  The Audit Committee of the Board of Trustees  reviews the financial
statements  and the  auditor's  reports  and  undertakes  certain  studies  and
analyses as directed by the Board.  The Corporate  Governance  Committee of the
Board of Trustees  maintains  oversight of the organization,  performance,  and
effectiveness of the Board and independent Trustees.

     In addition to the previously listed Trustees and/or officers of the Trust
who also serve as  Directors  and/or  officers of the  Manager,  the  following
individuals are Directors  and/or executive  officers of the Manager:  Harry W.
Miller, Senior Vice President,  Investments (Equity);  Carl W. Shirley,  Senior
Vice President, Insurance Company Portfolios; and John J. Dallahan, Senior Vice
President,  Investment  Services.  There are no family  relationships among the
Trustees, officers and managerial level employees of the Trust, or its Manager.
   
     The following table sets forth information  describing the compensation of
the current Trustees of the Trust for their services as Trustees for the fiscal
year ended March 31, 1998.

     NAME                       AGGREGATE         TOTAL COMPENSATION
      OF                      COMPENSATION           FROM THE USAA
    TRUSTEE                  FROM THE TRUST       FAMILY OF FUNDS (b)
    -------                  --------------       -------------------
Robert G. Davis                   None (a)               None (a)
Barbara B. Dreeben             $ 9,940               $ 35,500
Howard L. Freeman, Jr.         $ 9,940               $ 35,500
Robert L. Mason                $ 9,940               $ 35,500
Michael J.C. Roth                 None (a)               None (a)
John W. Saunders, Jr.             None (a)               None (a)
Richard A. Zucker              $ 9,940               $ 35,500
- ---------------------------
    
 (a)  Robert G.  Davis,  Michael  J.C.  Roth,  and John W.  Saunders,  Jr.  are
      affiliated with the Trust's investment adviser,  IMCO, and,  accordingly,
      receive  no  remuneration  from the Trust or any  other  Fund of the USAA
      Family of Funds.

                                      17
<PAGE>
   
 (b)  At May 31, 1998,  the USAA Family of Funds  consisted of four  registered
      investment companies offering 35 individual funds. Each Trustee presently
      serves as a Trustee or  Director of each  investment  company in the USAA
      Family of Funds.  In addition,  Michael J.C. Roth  presently  serves as a
      Trustee of USAA Life Investment  Trust, a registered  investment  company
      advised by IMCO,  consisting  of seven funds  offered to  investors  in a
      fixed and variable annuity contract with USAA Life Insurance Company. Mr.
      Roth receives no compensation as Trustee of USAA Life Investment Trust.

     All of the above Trustees are also  Trustees/Directors  of the other funds
within the USAA  Family of Funds.  No  compensation  is paid by any fund to any
Trustee/Director  who is a  director,  officer,  or  employee  of  IMCO  or its
affiliates.  No  pension or  retirement  benefits  are  accrued as part of fund
expenses.  The Trust  reimburses  certain  expenses of the Trustees who are not
affiliated with the investment  adviser.  As of June 30, 1998, the officers and
Trustees of the Trust and their  families as a group owned  beneficially  or of
record less than 1% of the outstanding shares of the Trust.

     As of June 30, 1998, USAA and its affiliates owned 502,387 shares (14%) of
the Income Strategy Fund, 26,961,428 shares (82%) of the Emerging Markets Fund,
1,534,435 shares (5.3%) of the International Fund, 421,541 shares (1.1%) of the
GNMA  Trust,  and no shares  of the  Growth  and Tax  Strategy  Fund,  Balanced
Strategy Fund,  Cornerstone  Strategy Fund,  Growth  Strategy Fund,  Gold Fund,
World Growth Fund, and Treasury Money Market Trust.

     The Trust  knows of no other  persons  who, as of June 30,  1998,  held of
record  or owned  beneficially  5% or more of the  voting  stock of any  Fund's
shares.
    
                              THE TRUST'S MANAGER
   
As described in each Fund's Prospectus,  USAA Investment  Management Company is
the Manager and investment  adviser,  providing the services under the Advisory
Agreement.  The Manager, an affiliate of United Services Automobile Association
(USAA), a large,  diversified financial services institution,  was organized in
May 1970, has served as investment  adviser and underwriter for USAA Investment
Trust from its inception.

     In addition  to  managing  the  Trust's  assets,  the Manager  advises and
manages the investments for USAA and its affiliated  companies as well as those
of USAA Mutual Fund,  Inc.,  USAA Tax Exempt Fund,  Inc.,  USAA State  Tax-Free
Trust, and USAA Life Investment Trust. As of the date of this SAI, total assets
under  management by the Manager were  approximately  $____  billion,  of which
approximately $____ billion were in mutual fund portfolios.
    
ADVISORY AGREEMENT
   
Under the  Advisory  Agreement,  the Manager  provides an  investment  program,
carries out the  investment  policy and manages the  portfolio  assets for each
Fund.  The  Manager  is  authorized,  subject  to the  control  of the Board of
Trustees of the Trust, to determine the selection,  amount,  and time to buy or
sell  securities for each Fund. In addition to providing  investment  services,
the  Manager  pays  for  office  space,  facilities,  business  equipment,  and
accounting  services (in addition to those  provided by the  Custodian) for the
Trust.  The Manager  compensates all personnel,  officers,  and Trustees of the
Trust if such persons are also employees of the Manager or its affiliates.  For
these  services under the Advisory  Agreement,  each Fund has agreed to pay the
Manager a fee computed as described  under FUND  MANAGEMENT in its  Prospectus.
Management fees are computed and accrued daily and are payable monthly.
    
     Except for the services and facilities provided by the Manager,  the Funds
pay all other  expenses  incurred in their  operations.  Expenses for which the
Funds  are  responsible  include  taxes  (if  any),  brokerage  commissions  on
portfolio transactions,  expenses of issuance and redemption of shares, charges
of  transfer  agents,  custodians  and  dividend  disbursing  agents,  costs of
preparing  and  distributing  proxy  material,  costs of printing and engraving
stock   certificates,   auditing  and  legal  expenses,   certain  expenses  of
registering  and  qualifying  shares  for sale,  fees of  Trustees  who are not
interested  (not  affiliated)  persons of the  Manager,  costs of  typesetting,
printing  and  mailing the  Prospectus,  SAI and  periodic  reports to existing
shareholders,  and any other charges or fees not specifically  enumerated.  The
Manager pays the cost of printing and mailing copies of the Prospectus, the SAI
and reports to prospective shareholders.

     The Advisory Agreement will remain in effect until June 30, 1999, for each
Fund and will continue in effect from year to year  thereafter for each Fund as
long as it is approved at least  annually by a vote of the  outstanding  voting
securities  of such  Fund  (as  defined  by the  1940  Act) or by the  Board of
Trustees (on behalf of such Fund)  including a majority of the Trustees who are
not  interested  persons of the Manager or (otherwise  than as Trustees) of the
Trust,  at a meeting  called for the  purpose of voting on such  approval.  The
Advisory  Agreement  may be  terminated  at any time by either the Trust or the
Manager on 60 days'  written  notice.  It will  automatically  terminate in the
event of its assignment (as defined by the 1940 Act).
   
     From time to time the Manager may,  without prior notice to  shareholders,
waive all or any portion of fees or agree to reimburse  expenses  incurred by a
Fund.  The  Manager  has  voluntarily  agreed to  continue  to limit the annual
expenses of the Treasury  Money  Market Trust to .375% and the Income  Strategy
and

                                      18
<PAGE>
Balanced  Strategy  Funds to 1.00% and  1.25%,  respectively,  of its ANA until
October 1, 1999,  and will  reimburse  the Funds for all  expenses in excess of
such limitation. After October 1, 1999, any such waiver or reimbursement may be
terminated by the Manager at any time without prior notice to the shareholders.
    
For the last three fiscal years, management fees were as follows:
   
      FUND                          1996            1997             1998
      ----                          ----            ----             ----
  Income Strategy                $   34,662*     $   65,023      $   118,050
  Growth and Tax Strategy        $  728,915      $  852,055      $ 1,048,344
  Balanced Strategy              $   66,393*     $  190,093      $   360,127
  Cornerstone Strategy           $7,072,915      $8,496,435      $10,594,219
  Growth Strategy                $  219,751*     $  990,525      $ 1,754,693
  Emerging Markets               $  308,963      $  600,181      $ 2,598,294
  Gold                           $1,170,207      $  996,721      $   744,517
  International                  $2,730,374      $3,805,999      $ 4,650,798
  World Growth                   $1,708,489      $1,994,809      $ 2,524,040
  GNMA Trust                     $  361,221      $  381,390      $   427,196
  Treasury Money Market Trust    $   94,427      $  105,420      $   118,804
    
As a result of the Funds' actual expenses exceeding an expense limitation,  the
Manager did not receive fees to which it would have been entitled as follows:
   
      FUND                          1996            1997             1998
      ----                          ----            ----             ----
  Income Strategy                $   34,662*     $   66,382      $    51,777
  Balanced Strategy              $   66,393*     $   37,577      $    34,811
  Treasury Money Market Trust    $   21,001      $   15,808      $    17,721
- -----------
*For the nine-month period ended May 31, 1996.
    
UNDERWRITER

The Trust has an  agreement  with the Manager for  exclusive  underwriting  and
distribution  of the Funds'  shares on a continuing  best efforts  basis.  This
agreement  provides that the Manager will receive no fee or other  compensation
for such distribution services.

TRANSFER AGENT

The  Transfer  Agent  performs  transfer  agent  services for the Trust under a
Transfer Agency Agreement.  Services include maintenance of shareholder account
records,  handling of communications  with  shareholders,  distribution of Fund
dividends,  and  production  of reports  with  respect to account  activity for
shareholders  and the  Trust.  For  its  services  under  the  Transfer  Agency
Agreement,  each Fund pays the Transfer  Agent an annual fixed fee of $23.50 to
$26 per account. The fee is subject to change at any time.

     The fee to the Transfer Agent includes  processing of all transactions and
correspondence.  Fees are billed on a monthly basis at the rate of  one-twelfth
of the annual fee. In addition, the Funds pay all out-of-pocket expenses of the
Transfer Agent and other expenses which are incurred at the specific  direction
of the Trust.

                              GENERAL INFORMATION

CUSTODIAN

State Street Bank and Trust Company,  P.O. Box 1713,  Boston,  MA 02105, is the
Trust's  Custodian.  The  Custodian is  responsible  for,  among other  things,
safeguarding  and  controlling  the Trust's cash and  securities,  handling the
receipt and  delivery of  securities,  and  collecting  interest on the Trust's
investments.  In addition,  assets of the Income Strategy,  Balanced  Strategy,
Cornerstone Strategy,  Growth Strategy,  Emerging Markets, Gold, International,
and  World  Growth  Funds may be held by  certain  foreign  banks  and  foreign
securities depositories as agents of the Custodian in accordance with the rules
and regulations established by the SEC.

COUNSEL

Goodwin,  Procter & Hoar LLP,  Exchange Place,  Boston,  MA 02109,  will review
certain legal matters for the Trust in  connection  with the shares  offered by
the Prospectus.

INDEPENDENT AUDITORS

KPMG Peat Marwick LLP, 112 East Pecan,  Suite 2400, San Antonio,  TX 78205,  is
the Trust's independent auditor. In this capacity,  the firm is responsible for
auditing the annual financial statements of the Funds and reporting thereon.
           

                                      19
<PAGE>
                     CALCULATION OF PERFORMANCE DATA
   
Information regarding the total return and yield of each Fund is provided under
COULD THE VALUE OF YOUR INVESTMENT IN THE FUND FLUCTUATE in its Prospectus. See
VALUATION OF  SECURITIES  herein for a  discussion  of the manner in which each
Fund's price per share is calculated.
    
YIELD -- TREASURY MONEY MARKET TRUST
   
When the Treasury Money Market Trust quotes a "current annualized" yield, it is
based on a specified recent  seven-calendar-day  period.  It is computed by (1)
determining the net change,  exclusive of capital changes and income other than
investment income, in the value of a hypothetical  preexisting account having a
balance of one share at the  beginning  of the  period,  (2)  dividing  the net
change in account  value by the value of the  account at the  beginning  of the
base period to obtain the base  return,  then (3)  multiplying  the base period
return by 52.14 (365/7).  The resulting  yield figure is carried to the nearest
hundredth of one percent.
    
     The calculation includes (1) the value of additional shares purchased with
dividends on the original  share,  and dividends  declared on both the original
share  and  any  such  additional  shares,  and  (2) any  fees  charged  to all
shareholder  accounts,  in  proportion to the length of the base period and the
Trust's average account size.

     The capital changes  excluded from the  calculation  are realized  capital
gains and losses from the sale of securities  and unrealized  appreciation  and
depreciation.  The  Trust's  effective  (compounded)  yield will be computed by
dividing the seven-day  annualized  yield as defined above by 365,  adding 1 to
the quotient,  raising the sum to the 365th power,  and  subtracting 1 from the
result.

     Current and effective  yields  fluctuate  daily and will vary with factors
such as  interest  rates and the  quality,  length of  maturities,  and type of
investments in the portfolio.
   
             Yield For 7-day Period ended May 31, 1998 was 5.07%.
        Effective Yield For 7-day Period ended May 31, 1998 was 5.20%.
    
YIELD -- INCOME STRATEGY FUND, GROWTH AND TAX STRATEGY FUND AND GNMA TRUST

These Funds may advertise  performance in terms of 30-day yield quotation.  The
30-day yield  quotation is computed by dividing the net  investment  income per
share earned during the period by the maximum  offering  price per share on the
last day of the period, according to the following formula:

                         Yield = 2[((a-b)/(cd)+1)^6 -1]

Where:     a  = dividends and interest earned during the period
           b  = expenses accrued for the period (net of reimbursement)
           c  = the average  daily  number of shares  outstanding  during the
                period that were entitled to receive dividends
           d =  the maximum offering price per share on the last day of the
                period
   
The 30-day  yields for the period ended May 31, 1998,  for the Income  Strategy
Fund, Growth and Tax Strategy Fund and GNMA Trust were 4.15%,  3.13% and 6.48%,
respectively.
    
TAX EQUIVALENT YIELD

A  tax-exempt  mutual fund may  provide  more  "take-home"  income than a fully
taxable mutual fund after paying taxes.  Calculating a "tax  equivalent  yield"
means converting a tax-exempt yield to a pretax equivalent so that a meaningful
comparison can be made between a tax-exempt  municipal fund and a fully taxable
fund. Because the Growth and Tax Strategy Fund invests a significant percentage
of its assets in tax-exempt  securities,  it may advertise performance in terms
of a 30-day tax equivalent yield.

     To calculate a tax  equivalent  yield,  an investor  must know his federal
marginal  income  tax rate.  The tax  equivalent  yield for the  Growth and Tax
Strategy  Fund is then  computed by dividing that portion of the yield which is
tax-exempt by the  complement  of the federal  marginal tax rate and adding the
product to that  portion of the yield which is  taxable.  The  complement,  for
example,   of  a  federal  marginal  tax  rate  of  36.0%  is  64.0%,  that  is
(1.00-0.36=0.64).

          Tax Equivalent Yield = (% Tax Exempt Income x 30-day Yield/
                        (1-Federal Marginal Tax Rate))
                      + (% Taxable Income x 30-day Yield)
   
     Based on a federal  marginal tax rate of 36.0%,  the tax equivalent  yield
for the Growth and Tax Strategy  Fund for the period  ended May 31,  1998,  was
4.44%.
    

                                      20
<PAGE>

TOTAL RETURN

The Funds may advertise performance in terms of average annual total return for
1-, 5-, and 10-year  periods,  or for such lesser  periods as any of such Funds
have been in existence.  Average annual total return is computed by finding the
average  annual  compounded  rates of return over the periods that would equate
the initial amount invested to the ending  redeemable  value,  according to the
following formula:

                                P(1 + T)n = ERV

Where:     P  = a hypothetical initial payment of $1,000
           T  = average annual total return
           n  = number of years
         ERV  = ending redeemable value of a hypothetical $1,000 payment made
                at the  beginning of the 1-, 5-, or 10-year  periods at the end
                of the year or period

The  calculation  assumes  any  charges are  deducted  from the initial  $1,000
payment and assumes all dividends and distributions by such Fund are reinvested
at the price  stated in the  Prospectus  on the  reinvestment  dates during the
period,  and includes all  recurring  fees that are charged to all  shareholder
accounts.
   
                          Average Annual Total Returns
                         For Periods Ended May 31, 1998
                             1           5          10          From
     FUND                   YEAR       YEARS       YEARS      INCEPTION*
Income Strategy            16.72%         -           -         12.04%
Growth and Tax Strategy    15.26%      11.62%         -         10.81%
Balanced Strategy          16.82%         -           -         15.30%
Cornerstone Strategy       17.15%      13.18%      11.34%        -
Growth Strategy            12.12%         -           -         16.99%
Emerging Markets          (20.97%)        -           -          (.52%)
Gold                      (27.44%)    (8.34%)      (3.62%)         -
International              13.29%      14.46%         -         11.45%
World Growth               16.29%      14.43%         -         14.96%
GNMA Trust                 10.65%       6.87%         -          7.97%
    
- ---------------------
*  Data from  inception  is shown for Funds  that are less than ten years  old.
   Income  Strategy,  Balanced  Strategy,  and Growth  Strategy Funds commenced
   operations  on September 1, 1995.  Growth and Tax  Strategy  Fund  commenced
   operations on January 11, 1989.  Emerging Markets Fund commenced  operations
   on November 7, 1994.  International  Fund  commenced  operations on July 11,
   1988. World Growth Fund commenced  operations on October 1, 1992. GNMA Trust
   commenced operations on February 1, 1991.

              APPENDIX A -- LONG-TERM AND SHORT-TERM DEBT RATINGS

1.  LONG-TERM DEBT RATINGS:
   
MOODY'S INVESTOR SERVICES, INC.
    
Aaa      Bonds which 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  edged."  Interest  payments  are  protected by a
         large or by an  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  which 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  which  make the
         long-term risk appear somewhat larger than in Aaa securities.

A        Bonds which 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 which suggest a  susceptibility  to impairment
         sometime in the future.

                                      21
<PAGE>

Baa      Bonds which 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.
   
NOTE:  MOODY'S APPLIES  NUMERICAL  MODIFIERS 1, 2, AND 3 IN EACH GENERIC RATING
CLASSIFICATION.  THE  MODIFIER 1  INDICATES  THAT THE  OBLIGATION  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.
    
A description of ratings Ba and below  assigned to debt  obligations by Moody's
is included in Appendix A of the Emerging Markets Fund Prospectus.
   
STANDARD & POOR'S RATINGS GROUP

AAA      An obligation  rated AAA has the highest rating assigned by Standard &
         Poor's. The obligor's capacity to meet its financial commitment on the
         obligation is EXTREMELY STRONG.

AA       An  obligation  rated AA differs from the highest rated issues only in
         small degree. The obligor's capacity to meet its financial  commitment
         on the obligation is VERY STRONG.

A        An  obligation  rated A is somewhat  more  susceptible  to the adverse
         effects of changes  in  circumstances  and  economic  conditions  than
         obligations  in  higher  rated  categories.   However,  the  obligor's
         capacity to meet its financial  commitment on the  obligation is still
         STRONG.

BBB      An obligation rated BBB exhibits ADEQUATE capacity to pay interest and
         repay  principal.  However,  adverse  economic  conditions or changing
         circumstances  are more  likely to lead to a weakened  capacity of the
         obligor to meet its financial commitment on the obligation.
    
PLUS  (+) OR MINUS  (-):  THE  RATINGS  FROM AA TO BBB MAY BE  MODIFIED  BY THE
ADDITION  OF A PLUS OR MINUS SIGN TO SHOW  RELATIVE  STANDING  WITHIN THE MAJOR
RATING CATEGORIES.
   
FITCH IBCA, INC.

AAA      Highest credit quality. "AAA" ratings denote the lowest expectation of
         credit risk.  They are assigned only in case of  exceptionally  strong
         capacity for timely payment of financial commitments. This capacity is
         highly unlikely to be adversely affected by foreseeable events.

AA       Very high credit  quality.  "AA" ratings denote a very low expectation
         of credit risk.  They indicate very strong capacity for timely payment
         of  financial   commitments.   This  capacity  is  not   significantly
         vulnerable to foreseeable events.

A        High credit  quality.  "A" ratings denote a low  expectation of credit
         risk.  The capacity for timely  payment of  financial  commitments  is
         considered strong. This capacity may, nevertheless, be more vulnerable
         to changes in circumstances or in economic conditions than is the case
         for higher ratings.

BBB      Good credit quality.  "BBB" ratings indicate that there is currently a
         low  expectation  of credit risk.  The capacity for timely  payment of
         financial  commitments is considered adequate,  but adverse changes in
         circumstances  and in  economic  conditions  are more likely to impair
         this capacity. This is the lowest investment-grade category.

PLUS AND MINUS  SIGNS ARE USED WITH A RATING  SYMBOL TO INDICATE  THE  RELATIVE
POSITION OF A CREDIT WITHIN THE RATING CATEGORY. PLUS AND MINUS SIGNS, HOWEVER,
ARE NOT USED IN THE AAA CATEGORY.

DUFF & PHELPS, INC.

AAA      Highest credit quality.  The risk factors are  negligible,  being only
         slightly more than for risk-free U.S. Treasury debt.

AA       High credit quality. Protection factors are strong. Risk is modest but
         may vary slightly from time to time because of economic conditions.

A        Protection factors are average but adequate. However, risk factors are
         more variable and greater in periods of economic stress.

BBB      Below average protection  factors but still considered  sufficient for
         prudent investment.  Considerable  variability in risk during economic
         cycles.
    
2. SHORT-TERM DEBT RATINGS:

MOODY'S MUNICIPAL

MIG-1/VMIG1  This  designation  denotes best quality.  There is present  strong
             protection by established cash flows,  superior  liquidity support
             or demonstrated broad-based access to the market for refinancing.

MIG-2/VMIG2  This designation  denotes high quality.  Margins of protection are
             ample although not so large as in the preceding group.

                                      22
<PAGE>

MOODY'S CORPORATE AND GOVERNMENT

Prime-1    Issuers rated Prime-1 (or supporting  institutions)  have a superior
           ability for repayment of senior short-term  promissory  obligations.
           Prime-1  repayment  capacity  will  normally  be  evidenced  by  the
           following characteristics:

           *  Leading market positions in well-established industries.

           *  High rates of return on funds employed.

           * Conservative  capitalization  structures with moderate reliance on
             debt and ample asset protection.

           * Broad margins in earning  coverage of fixed financial  charges and
             high internal cash generation.

           * Well-established  access  to a  range  of  financial  markets  and
             assured sources of alternate liquidity.

Prime-2    Issuers rated  Prime-2 (or  supporting  institutions)  have a strong
           ability for repayment of senior short-term  promissory  obligations.
           This will normally be evidenced by many of the characteristics cited
           above but to a lesser degree.  Earnings trends and coverage  ratios,
           while  sound,  may be  more  subject  to  variation.  Capitalization
           characteristics,  while still  appropriate,  may be more affected by
           external conditions. Ample alternate liquidity is maintained.

S&P MUNICIPAL

SP-1     Strong  capacity to pay principal and interest.  Issues  determined to
         possess very strong characteristics are given a plus (+) designation.

SP-2     Satisfactory  capacity  to  pay  principal  and  interest,  with  some
         vulnerability to adverse  financial and economic changes over the term
         of the notes.

S&P CORPORATE AND GOVERNMENT

A-1      This highest  category  indicates that the degree of safety  regarding
         timely payment is strong. Those issues determined to possess extremely
         strong  safety  characteristics  are  denoted  with  a plus  (+)  sign
         designation.

A-2      Capacity  for  timely  payment  on  issues  with this  designation  is
         satisfactory. However, the relative degree of safety is not as high as
         for issues designated A-1.

FITCH

F1       Highest credit  quality.  Indicates the strongest  capacity for timely
         payment of financial commitments;  may have an added "+" to denote any
         exceptionally strong credit features.

F2       Good credit  quality.  A  satisfactory  capacity for timely payment of
         financial commitments,  but the margin of safety is not as great as in
         the case of the higher ratings.

F3       Fair credit  quality.  The  capacity  for timely  payment of financial
         commitments  is adequate;  however,  near-term  adverse  changes could
         result in a reduction to non-investment grade.

DUFF & PHELPS

D-1+     Highest certainty of timely payment.  Short-term liquidity,  including
         internal  operating  factors and/or access to  alternative  sources of
         funds,  is  outstanding,  and  safety  is just  below  risk-free  U.S.
         Treasury short-term obligations.

D-1      Very high certainty of timely payment. Liquidity factors are excellent
         and supported by good fundamental protection factors. Risk factors are
         minor.

D-1-     High  certainty of timely  payment.  Liquidity  factors are strong and
         supported by good  fundamental  protection  factors.  Risk factors are
         very small.

D-2      Good  certainty  of timely  payment.  Liquidity  factors  and  company
         fundamentals  are sound.  Although  ongoing  funding needs may enlarge
         total financing requirements,  access to capital markets is good. Risk
         factors are small.

D-3      Satisfactory  liquidity and other protection factors quality issues as
         to  investment  grade.  Risk  factors  are larger and  subject to more
         variation. Nevertheless, timely payment is expected.

               APPENDIX B -- COMPARISON OF PORTFOLIO PERFORMANCE

Occasionally,  we may make  comparisons  in  advertising  and sales  literature
between the Funds  contained  in this SAI and other Funds in the USAA Family of
Funds. These comparisons may include such topics as risk and reward, investment
objectives, investment strategies, and performance.

                                      23
<PAGE>

     Fund  performance  also may be compared to the performance of broad groups
of  mutual  funds  with  similar  investment  goals  or  unmanaged  indexes  of
comparable  securities.  Evaluations  of Fund  performance  made by independent
sources  may also be used in  advertisements  concerning  the  Fund,  including
reprints of, or selections  from,  editorials or articles  about the Fund.  The
Fund or its  performance  may also be  compared to products  and  services  not
constituting  securities  subject to  registration  under the Securities Act of
1933 such as, but not limited  to,  certificates  of deposit  and money  market
accounts.  Sources for performance  information and articles about the Fund may
include but are not restricted to the following:

AAII  JOURNAL,  a monthly  association  magazine  for  members of the  American
Association of Individual Investors.

ARIZONA REPUBLIC, a newspaper which may cover financial and investment news.

AUSTIN AMERICAN-STATESMAN, a newspaper which may cover financial news.

BARRON'S,  a Dow Jones and Company,  Inc.  business and  financial  weekly that
periodically reviews mutual fund performance data.

BUSINESS  WEEK,  a national  business  weekly  that  periodically  reports  the
performance rankings and ratings of a variety of mutual funds.

CHICAGO TRIBUNE, a newspaper which may cover financial news.

CONSUMER  REPORTS,  a  monthly  magazine  which  from time to time  reports  on
companies in the mutual fund industry.

DALLAS MORNING NEWS, a newspaper which may cover financial news.

DENVER POST, a newspaper which may quote financial news.
   
FINANCIAL PLANNING, a monthly magazine that periodically  features companies in
the mutual fund industry.
    
FINANCIAL SERVICES WEEK, a weekly newspaper which covers financial news.
           
FINANCIAL WORLD, a monthly  magazine which may periodically  review mutual fund
companies.

FORBES,  a  national  business   publication  that  periodically   reports  the
performance of companies in the mutual fund industry.

FORTUNE,   a  national  business   publication  that  periodically   rates  the
performance of a variety of mutual funds.

FUND ACTION, a mutual fund news report.

HOUSTON CHRONICLE, a newspaper which may cover financial news.

HOUSTON POST, a newspaper which may cover financial news.

IBC'S MONEYLETTER,  a biweekly  newsletter which covers financial news and from
time to time rates specific mutual funds.

INCOME AND SAFETY, a monthly newsletter that rates mutual funds.

INVESTECH, a bimonthly investment newsletter.

INVESTMENT  ADVISOR,  a monthly  publication  directed primarily to the advisor
community; includes ranking of mutual funds using a proprietary methodology.

INVESTMENT COMPANY INSTITUTE, a national association of the American Investment
Company industry.

INVESTOR'S BUSINESS DAILY, a newspaper which covers financial news.

KIPLINGER'S   PERSONAL  FINANCE  MAGAZINE,   a  monthly   investment   advisory
publication  that  periodically  features  the  performance  of  a  variety  of
securities.
   
LIPPER ANALYTICAL SERVICES,  INC.'S EQUITY FUND PERFORMANCE  ANALYSIS, a weekly
and monthly  publication of industry-wide  mutual fund performance  averages by
type of fund.
    
LIPPER ANALYTICAL  SERVICES,  INC.'S FIXED INCOME FUND PERFORMANCE  ANALYSIS, a
monthly publication of industry-wide  mutual fund performance  averages by type
of fund.
           
LOS ANGELES TIMES, a newspaper which may cover financial news.

LOUIS RUKEYSER'S WALL STREET, a publication for investors.

MEDICAL  ECONOMICS,  a monthly  magazine  providing  information to the medical
profession.

MONEY, a monthly  magazine that features the performance of both specific funds
and the mutual fund industry as a whole.

MORNINGSTAR 5 STAR INVESTOR,  a monthly  newsletter which covers financial news
and rates  mutual funds  produced by  Morningstar,  Inc. (a data service  which
tracks open-end mutual funds).

MUTUAL FUND FORECASTER, a monthly newsletter that ranks mutual funds.

MUTUAL FUND INVESTING, a newsletter covering mutual funds.

                                      24
<PAGE>

MUTUAL FUND PERFORMANCE REPORT, a monthly  publication of industry-wide  mutual
fund averages produced by Morningstar, Inc.

MUTUAL  FUNDS  MAGAZINE,  a  monthly  publication   reporting  on  mutual  fund
investing.

MUTUAL FUND SOURCE BOOK, an annual  publication  produced by Morningstar,  Inc.
which describes and rates mutual funds.

MUTUAL  FUND  VALUES,  a  biweekly   guidebook  to  mutual  funds  produced  by
Morningstar, Inc.

NEWSWEEK, a national business weekly.

NEW YORK TIMES, a newspaper which may cover financial news.

NO LOAD FUND  INVESTOR,  a  newsletter  covering  companies  in the mutual fund
industry.

ORLANDO SENTINEL, a newspaper which may cover financial news.

PERSONAL  INVESTOR,  a monthly magazine which from time to time features mutual
fund companies and the mutual fund industry.

SAN ANTONIO  BUSINESS  JOURNAL,  a weekly  newspaper that  periodically  covers
mutual fund companies as well as financial news.

SAN ANTONIO EXPRESS-NEWS, a newspaper which may cover financial news.

SAN FRANCISCO CHRONICLE, a newspaper which may cover financial news.

SMART MONEY,  a monthly  magazine  featuring news and articles on investing and
mutual funds.

USA TODAY, a newspaper which may cover financial news.

U.S.  NEWS AND WORLD  REPORT,  a national  business  weekly  that  periodically
reports mutual fund performance data.

WALL STREET  JOURNAL,  a Dow Jones and  Company,  Inc.  newspaper  which covers
financial news.

WASHINGTON POST, a newspaper which may cover financial news.

WEISENBERGER  MUTUAL FUNDS INVESTMENT REPORT, a monthly newsletter that reports
on both specific mutual fund companies and the mutual fund industry as a whole.

WORLD MONITOR, The Christian Science Monitor Monthly.

WORTH, a magazine  which covers  financial and  investment  subjects  including
mutual funds.

YOUR MONEY, a monthly magazine directed towards the novice investor.

     In addition, the Cornerstone Strategy, Growth Strategy,  Emerging Markets,
Gold,  International,  and World  Growth  Funds  may be cited  for  performance
information  and articles in  INTERNATIONAL  REPORTS,  a publication  providing
insights on world financial markets and economics.

     The GNMA and Treasury Money Market Trusts may be cited in:

THE BOND BUYER, a daily newspaper which covers bond market news.
   
IBC'S MONEY FUND REPORT, a weekly  publication of the IBC Financial Data, Inc.,
reporting on the  performance of the nation's  money market funds,  summarizing
money market fund  activity,  and  including  certain  averages as  performance
benchmarks, specifically Taxable Money Fund Averages: "100% U.S. Treasury."
    
IBC'S MONEY MARKET INSIGHT,  a monthly money market industry  analysis prepared
by IBC USA, Inc.

     In  addition to the sources  above,  performance  of our Funds may also be
tracked by Lipper Analytical Services,  Inc. and Morningstar,  Inc. A Fund will
be compared to Lipper's or Morningstar's appropriate fund category according to
its objective and portfolio  holdings.  Footnotes in  advertisements  and other
sales literature will include the time period applicable for any rankings used.

     For comparative  purposes,  unmanaged indexes of comparable  securities or
economic data may be cited. Examples include the following:

- -- Bond Buyer Indices,  indices of debt of varying maturities including revenue
bonds,  general obligation bonds, and U.S. Treasury bonds which can be found in
THE BOND BUYER.

- -- Consumer  Price  Index,  a measure of U.S.  inflation  in prices on consumer
goods.

- --  Financial  Times  Gold Mines  Index,  an index that  includes  gold  mining
companies if they:  a) have  sustainable,  attributable  gold  production of at
least  300,000  ounces a year;  b) draw at least 75% of revenue from mined gold
sales;  and c) have at least 10% of their  capital  available to the  investing
public.

- --  Ibbotson Associates, Inc., Stocks, Bonds, Bills, and Inflation Yearbook.

- -- IFC Investable Index (IFCI) and IFC Global Index (IFCG),  premier benchmarks
for  international  investors.  Both index  series  cover 25 discrete  markets,
regional  indexes,   and  a  composite  index,   providing  the  most  accurate
representation of the emerging markets universe available.

                                      25
<PAGE>

- -- Lehman Brothers Inc. GNMA 30 Year Index.

- -- Lehman Brothers Municipal Bond Index, a total return  performance  benchmark
for the long-term investment grade tax-exempt bond market.

- -- London Gold, a traditional index that prices London gold.

- -- London Gold PM Fix Price, the evening gold prices as set by London dealers.

- -- Morgan  Stanley  Capital  Index  (MSCI) - EAFE,  an  unmanaged  index  which
reflects the movements of stock markets in Europe,  Australia, and the Far East
by representing a broad selection of domestically  listed companies within each
market.

- -- Morgan  Stanley  Capital  Index  (MSCI) - World,  an  unmanaged  index which
reflects the movements of world stock markets by representing a broad selection
of domestically listed companies within each market.

                      APPENDIX C -- DOLLAR-COST AVERAGING

Dollar-cost  averaging  is a systematic  investing  method which can be used by
investors as a disciplined technique for investing.  A fixed amount of money is
invested in a security (such as a stock or mutual fund) on a regular basis over
a period of time,  regardless  of whether  securities  markets are moving up or
down.

     This  practice  reduces  average  share costs to the investor who acquires
more shares in periods of lower  securities  prices and fewer shares in periods
of higher prices.

     While  dollar-cost  averaging does not assure a profit or protect  against
loss in declining markets, this investment strategy is an effective way to help
calm the effect of fluctuations in the financial markets.  Systematic investing
involves  continuous  investment in securities  regardless of fluctuating price
levels of such securities. Investors should consider their financial ability to
continue purchases through periods of low and high price levels.

     As the following chart  illustrates,  dollar-cost  averaging tends to keep
the overall cost of shares lower.  This example is for  illustration  only, and
different trends would result in different average costs.

                        HOW DOLLAR-COST AVERAGING WORKS

                      $100 Invested Regularly for 5 Periods
                                 Market Trend
           --------------------------------------------------------------------

                  Down                   Up                    Mixed
           -------------------    --------------------- -----------------------
             Share   Shares       Share     Shares      Share      Shares
Investment   Price   Purchased    Price     Purchased   Price      Purchased
           -------------------    --------------------- -----------------------
$100         10      10             6         16.67      10            10
 100          9      11.1           7         14.29       9            11.1
 100          8      12.5           7         14.29       8            12.5
 100          8      12.5           9         11.1        9            11.1
 100          6      16.67         10         10         10            10
- ----         --      -----         --         -----      --            -----
$500      ***41      62.77      ***39         66.35   ***46            54.7
        *Avg. Cost:  $7.97       *Avg. Cost:  $7.54       *Avg. Cost:  $9.14
                     -----                    -----                    -----
      **Avg. Price:  $8.20     **Avg. Price:  $7.80     **Avg. Price:  $9.20
                     -----                    -----                    -----

  *   Average Cost is the total amount invested divided by number of 
       shares purchased.
 **   Average Price is the sum of the prices paid divided by number
       of purchases.
***   Cumulative total of share prices used to compute average prices.

                                      26
<PAGE>

<PAGE>
   
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                                      27
<PAGE>
   
06088-1098
    
<PAGE>
                             USAA INVESTMENT TRUST

PART C.      OTHER INFORMATION
             -----------------
   
Item 23.     EXHIBITS
             --------
    
      1 (a)  First Amended and Restated Master Trust Agreement, June 2, 1995
              (1)
        (b)  Amendment No. 1 dated July 12, 1995 (2)

      2      By-laws, as amended January 18, 1994 (1)
   
      3      SPECIMEN CERTIFICATES FOR SHARES OF
    
        (a)  Cornerstone Strategy Fund (2)
        (b)  Gold Fund (2)
        (c)  International Fund (2)
        (d)  Growth and Tax Strategy Fund (2)
        (e)  GNMA Trust (2)
        (f)  Treasury Money Market Trust (2)
        (g)  World Growth Fund (2)
        (h)  Emerging Markets Fund (2)
        (i)  Balanced Strategy Fund (2)
        (j)  Growth Strategy Fund (2)
        (k)  Income Strategy Fund (2)
   
      4 (a)  Advisory Agreement dated September 21, 1990 (1)
    
        (b)  Letter  Agreement dated  January 24, 1991  adding  GNMA Trust  and
              Treasury Money Market Trust (1)
        (c)  Letter Agreement dated July 21, 1992 adding World Growth Fund (1)
        (d)  Letter  Agreement dated  September 7, 1994 adding Emerging Markets
              Fund (1)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced Strategy,
              Growth Strategy and Income Strategy Funds (2)
   
      5 (a)  Underwriting  Agreement  dated  July  9,  1990  (2)
    
        (b)  Letter  Agreement dated  January 24,  1991  adding GNMA Trust  and
              Treasury Money Market Trust (2)
        (c)  Letter Agreement dated July 21, 1992 adding World Growth Fund (2)
        (d)  Letter  Agreement  dated September 7, 1994 adding Emerging Markets
              Fund (2)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced Strategy,
              Growth Strategy and Income Strategy Funds (2)
   
      6      Not Applicable

      7 (a)  Custodian  Agreement  dated July 27, 1984 (2)
    
        (b)  Amendment to Custodian Contract dated May 13, 1985 (2)
        (c)  Amendment to Custodian Contract dated May 1, 1986 (2)
        (d)  Amendment to Amendment to Custodian  Contract  dated  May 1,  1986
              (2)
        (e)  Amendment to the Custodian Agreement dated November 3, 1988 (2)
        (f)  Letter Agreement dated May 26, 1988 adding International Fund (2)

                                      C-1
<PAGE>

EXHIBIT NO.  DESCRIPTION OF EXHIBITS
- ------------------------------------

        (g)  Letter  Agreement dated  January 3,  1989  adding  Growth  and Tax
              Strategy Fund (2)
        (h)  Letter  Agreement dated  January 24, 1991  adding  GNMA Trust  and
              Treasury Money Market Trust (2)
        (i)  Letter Agreement dated July 21, 1992 adding World Growth Fund (2)
        (j)  Letter  Agreement dated  September 7, 1994 adding Emerging Markets
              Fund (2)
        (k)  Letter Agreement dated September 1, 1995 adding Balanced Strategy,
              Growth Strategy and Income Strategy Funds (2)
        (l)  Subcustodian Agreement dated March 24, 1994 (4)
        (m)  Amendment to Custodian Contract dated May 13, 1996 (4)
   
      8 (a)  Transfer Agency Agreement dated January 23, 1992 (2)
    
        (b)  Letter Agreement dated July 21, 1992 adding World Growth Fund (2)
        (c)  Letter  Agreement dated  September 7, 1994 adding Emerging Markets
              Fund (2)
        (d)  Amendments dated May 3, 1995 to the Transfer  Agency Agreement Fee
              Schedules for Gold Fund, Cornerstone Strategy Fund, International
              Fund,  Growth and Tax Strategy Fund,  GNMA Trust,  Treasury Money
              Market Trust, World Growth Fund, and Emerging Markets Fund (2)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced Strategy,
              Growth Strategy and Income Strategy Funds (2)
        (f)  Amendment  No. 1  to Transfer Agency Agreement  dated November 14,
              1995 (3)
   
        (g)  Master  Revolving  Credit Facility  Agreement  with  USAA  Capital
              Corporation dated January 13, 1998 (filed herewith)
        (h)  Master  Revolving Credit  Facility Agreement  with NationsBank  of
               Texas dated January 14, 1998 (filed herewith)

      9 (a)  Opinion  of Counsel with respect  to the Balanced Strategy, Growth
              Strategy and Income Strategy Funds (1)
    
        (b)  Opinion  of Counsel  with respect  to the Growth  and Tax Strategy
              Fund,  Cornerstone  Strategy Fund,  Emerging  Markets Fund,  Gold
              Fund,  International Fund,  World  Growth Fund,  GNMA Trust,  and
              Treasury Money Market Trust (2)
        (c)  Consent of Counsel (filed herewith)
   
     10      Consent of Independent Accountants (filed herewith)

     11      Omitted financial statements - Not Applicable

     12      SUBSCRIPTIONS AND INVESTMENT LETTERS
    
        (a)  GNMA Trust and Treasury Money Market Trust (2)
        (b)  World Growth Fund (2)
        (c)  Emerging Markets Fund (2)
        (d)  Growth Strategy Fund,  Income Strategy Fund, and Balanced Strategy
              Fund (2)
   
     13      12b-1 Plans - Not Applicable
    
                                      C-2
<PAGE>

EXHIBIT NO.  DESCRIPTION OF EXHIBITS
- ------------------------------------
   
     14      FINANCIAL DATA SCHEDULES
    
        (a)  Cornerstone Strategy Fund (filed herewith)
        (b)  Gold Fund (filed herewith)
        (c)  International Fund (filed herewith)
        (d)  Growth and Tax Strategy Fund (filed herewith)
        (e)  GNMA Trust (filed herewith)
        (f)  Treasury Money Market Trust (filed herewith)
        (g)  World Growth Fund (filed herewith)
        (h)  Emerging Markets Fund (filed herewith)
        (i)  Income Strategy Fund (filed herewith)
        (j)  Balanced Strategy Fund (filed herewith)
        (k)  Growth Strategy Fund (filed herewith)
   
     15      Plan Adopting Multiple Classes of Shares - Not Applicable

     16      POWERS OF ATTORNEY
    
        (a)  Powers of Attorney for Michael J.C. Roth, Sherron A. Kirk, John W.
              Saunders,  Jr.,  George E.  Brown,  Howard L.  Freeman, Jr.,  and
              Richard A. Zucker dated January 21, 1994 (2)
        (b)  Power of Attorney for Barbara B. Dreeben (1)
        (c)  Power of Attorney for Robert G. Davis dated July 9, 1997 (5)
        (d)  Power of Attorney for Robert L. Mason dated July 9, 1997 (5)
- -------------------
 (1)  Previously filed with Post-Effective Amendment  No. 20  of the Registrant
      (No. 2-91069)  filed with the Securities and Exchange Commission  on June
      15, 1995.

 (2)  Previously filed with  Post-Effective  Amendment No. 21 of the Registrant
      (No.  2-91069)  filed with the  Securities  and  Exchange  Commission  on
      September 26, 1995.

 (3)  Previously filed with  Post-Effective  Amendment No. 22 of the Registrant
      (No.  2-91069)  filed with the  Securities  and  Exchange  Commission  on
      January 26, 1996.

 (4)  Previously filed with  Post-Effective Amendment No. 23  of the Registrant
      (No. 2-91069) filed with the Securities and Exchange Commission on August
      1, 1996.

 (5)  Previously filed with  Post-Effective Amendment No. 24  of the Registrant
      (No. 2-91069) filed with the  Securities and Exchange Commission  on July
      31, 1997.

                                      C-3
<PAGE>
   
Item 24.     PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH FUND

             Information  pertaining  to persons  controlled by or under common
             control with Registrant is hereby incorporated by reference to the
             section  captioned  "Fund  Management"  in the  Prospectus and the
             section  captioned  "Trustees  and  Officers  of the Trust" in the
             Statement of Additional Information.

Item 25.     INDEMNIFICATION
    
             Protection  for the liability of the adviser and  underwriter  and
             for the officers and trustees of the Registrant is provided by two
             methods:

        (a)  THE  DIRECTOR AND OFFICER LIABILITY POLICY. This policy covers all
             losses incurred by the Registrant, its adviser and its underwriter
             from any claim made against those  entities or persons  during the
             policy period by any shareholder or former shareholder of any Fund
             by  reason  of  any  alleged  negligent  act,  error  or  omission
             committed in connection with the administration of the investments
             of said Registrant or in connection with the sale or redemption of
             shares issued by said Registrant.  The Trust will not pay for such
             insurance to the extent that  payment  therefor is in violation of
             the Investment Company Act of 1940 or the Securities Act of 1933.

        (b)  INDEMNIFICATION  PROVISIONS  UNDER  AGREEMENT  AND  DECLARATION OF
             TRUST.  Under  Article  VI  of  the  Registrant's   Agreement  and
             Declaration  of Trust,  each of its  trustees  and officers or any
             person serving at the Registrant's request as a director,  officer
             or  trustee  of  another  entity in which the  Registrant  has any
             interest  as  a  shareholder,   creditor  or  otherwise  ("Covered
             Person") shall be indemnified  against all liabilities,  including
             but not limited to amounts paid in satisfaction  of judgments,  in
             compromise  or as fines and  penalties,  and  expenses,  including
             reasonable  accountants' and counsel fees, incurred by any Covered
             Person  in  connection  with the  defense  or  disposition  of any
             action,  suit or other  proceeding,  whether  civil  or  criminal,
             before any court or  administrative  or legislative body, in which
             such person may be or may have been threatened, while in office or
             thereafter,  by reason of being or  having  been such an  officer,
             director or trustee, except with respect to any matter as to which
             it has been determined that such Covered Person (i) did not act in
             good faith in the  reasonable  belief that such  Covered  Person's
             action was in or not opposed to the best interests of the Trust or
             (ii)  had  acted  with  willful  misfeasance,   bad  faith,  gross
             negligence  or reckless  disregard  of the duties  involved in the
             conduct of such Covered  Person's  office  (either and both of the
             conduct  described in (i) and (ii) being  referred to hereafter as
             "Disabling  Conduct").  A determination that the Covered Person is
             entitled to indemnification may be made by (i) a final decision on
             the merits by a court or other body before whom the proceeding was
             brought that the person to be indemnified was not liable by reason
             of  Disabling  Conduct,  (ii)  dismissal  of a court  action or an
             administrative   proceeding   against   a   Covered   Person   for
             insufficiency  of  evidence  of  Disabling  Conduct,  or  (iii)  a
             reasonable  determination,  based upon a review of the facts, that
             the  indemnitee  was not liable by reason of Disabling  Conduct by
             (a) a vote of a majority of a quorum of  trustees  who are neither
             "interested  persons"  of the  Registrant  as  defined  in section
             2(a)(19) of the 1940 Act nor parties to the proceeding,  or (b) an
             independent legal counsel in a written opinion.

                                      C-4
<PAGE>

             Expenses,  including  accountants  and counsel fees so incurred by
             any  such   Covered   Person  (but   excluding   amounts  paid  in
             satisfaction   of   judgments,   in  compromise  or  as  fines  or
             penalties),  may be paid  from  time  to  time by the  Fund of the
             Registrant in question in advance of the final  disposition of any
             such action, suit or proceeding,  provided that the covered person
             shall have  undertaken to repay the amounts so paid to the Fund of
             Registrant  in  question  if  it  is  ultimately  determined  that
             indemnification  of such expenses is not authorized  under Article
             VI of the Agreement and  Declaration  of Trust and (i) the Covered
             Person shall have provided security for such undertaking, (ii) the
             Registrant  shall be insured  against  losses arising by reason of
             any  lawful  advances,  or (iii) a  majority  of a  quorum  of the
             disinterested  trustees who are not a party to the proceeding,  or
             an  independent  legal  counsel in a written  opinion,  shall have
             determined,  based on a review  of  readily  available  facts  (as
             opposed  to full  trial-type  inquiry),  that  there is  reason to
             believe that the Covered Person  ultimately will be found entitled
             to  indemnification.  As to any matter disposed of by a compromise
             payment by any such Covered Person pursuant to a consent decree or
             otherwise,  no such indemnification either for said payment or for
             any other expenses shall be provided  unless such  indemnification
             shall be approved (a) by a majority of the disinterested  trustees
             of the  Registrant who are not a party to the proceeding or (b) by
             an independent legal counsel in a written opinion. Approval by the
             trustees  pursuant to clause (a) or by  independent  legal counsel
             pursuant  to clause (b) shall not prevent  the  recovery  form any
             Covered  Person  of any  amount  paid to such  Covered  Person  in
             accordance  with any of such  clauses as  indemnification  if such
             Covered Person is subsequently adjudicated by a court of competent
             jurisdiction  not to have  acted in good  faith in the  reasonable
             belief that such Covered  Person's action was in or not opposed to
             the best interests of the Registrant or to have been liable to the
             Registrant or its  shareholders by reason of willful  misfeasance,
             bad faith,  gross  negligence or reckless  disregard of the duties
             involved in the conduct of such Covered Person's office.

             Insofar  as  indemnification  for  liabilities  arising  under the
             Securities Act of 1933 may be permitted to trustees,  officers and
             controlling persons of the Registrant pursuant to the Registrant's
             Agreement  and   Declaration  of  the  Trust  or  otherwise,   the
             Registrant has been advised that, in the opinion of the Securities
             and Exchange  Commission,  such  indemnification is against public
             policy as expressed in the Act and is,  therefore,  unenforceable.
             In the  event  that  a  claim  for  indemnification  against  such
             liabilities  (other than the payment by the Registrant of expenses
             incurred or paid by a trustee,  officer or  controlling  person of
             the  Registrant in the successful  defense of any action,  suit or
             proceeding)  is asserted by such trustee,  officer or  controlling
             person in connection with the securities  being  registered,  then
             the  Registrant  will,  unless in the  opinion of its  counsel the
             matter has been settled by a  controlling  precedent,  submit to a
             court  of  appropriate   jurisdiction   the  question  of  whether
             indemnification by it is against public policy as expressed in the
             Act and will be governed by the final adjudication of such issue.
   
Item 26.     BUSINESS AND OTHER CONNECTIONS OF THE INVESTMENT ADVISER

             Information  pertaining to business and other  connections  of the
             Registrant's   investment   adviser  is  hereby   incorporated  by
             reference  to  the  section  of  the  Prospectus  captioned  "Fund
             Management"  and to the  section of the  Statement  of  Additional
             Information captioned "Trustees and Officers of the Trust."

                                      C-5
<PAGE>

Item 27.     PRINCIPAL UNDERWRITERS
    
        (a)  USAA  Investment  Management   Company  (the  "Adviser")  acts  as
             principal  underwriter and distributor of the Registrant's  shares
             on a best-efforts  basis and receives no fee or commission for its
             underwriting  services.   The  Adviser,   wholly-owned  by  United
             Services   Automobile   Association,   also  serves  as  principal
             underwriter  for USAA Tax Exempt  Fund,  Inc.,  USAA Mutual  Fund,
             Inc., and USAA State Tax-Free Trust.

        (b)  Set  forth  below is  information  concerning  each  director  and
             executive officer of USAA Investment Management Company.

NAME AND PRINCIPAL          POSITION AND OFFICES           POSITION AND OFFICES
 BUSINESS ADDRESS             WITH UNDERWRITER                WITH REGISTRANT
 ----------------             ----------------                ---------------
   
Robert G. Davis             Director and Chairman          Trustee and
9800 Fredericksburg Road    of the Board of Directors      Chairman of the
San Antonio, TX 78288                                      Board of Trustees

Michael J.C. Roth           Chief Executive Officer,       President, Trustee
9800 Fredericksburg Road    President, Director, and       and Vice Chairman of
San Antonio, TX 78288       Vice Chairman of the           the Board of
                            Board of Directors             Trustees

John W. Saunders, Jr.       Senior Vice President,         Vice President and
9800 Fredericksburg Road    Fixed Income Investments,      Trustee
San Antonio, TX 78288       and Director

Harry W. Miller             Senior Vice President          None
9800 Fredericksburg Road    Equity Investments,
San Antonio, TX 78288       and Director

John J. Dallahan            Senior Vice President,         None
9800 Fredericksburg Road    Investment Services
San Antonio, TX 78288

Carl W. Shirley             Senior Vice President,         None
9800 Fredericksburg Road    Insurance Company Portfolios
San Antonio, TX 78288

Michael D. Wagner           Vice President, Secretary      Secretary
9800 Fredericksburg Road    and Counsel
San Antonio, TX 78288

Sherron A. Kirk             Vice President and             Treasurer
9800 Fredericksburg Road    Controller
San Antonio, TX 78288

Alex M. Ciccone             Vice President,                Assistant
9800 Fredericksburg Road    Compliance                     Secretary
San Antonio, TX 78288
    
                                      C-6
<PAGE>

        (c)  Not Applicable.
   
Item 28.     LOCATION OF ACCOUNTS AND RECORDS
    
             The following entities prepare, maintain, and preserve the records
             required by Section  31(a) of the  Investment  Company Act of 1940
             (the "1940 Act") for the  Registrant.  These services are provided
             to the Registrant  through written  agreements between the parties
             to  the  effect  that  such  services  will  be  provided  to  the
             Registrant   for  such  periods   prescribed   by  the  Rules  and
             Regulations of the Securities  and Exchange  Commission  under the
             1940 Act and such records are the property of the entity  required
             to maintain  and  preserve  such  records and will be  surrendered
             promptly on request.

                    USAA Investment Management Company
                    9800 Fredericksburg Road
                    San Antonio, Texas 78288

                    USAA Shareholder Account Services
                    10750 Robert F. McDermott Freeway
                    San Antonio, Texas 78288

                    State Street Bank and Trust Company
                    1776 Heritage Drive
                    North Quincy, Massachusetts 02171
   
Item 29.     MANAGEMENT SERVICES
    
             Not Applicable.
   
Item 30.     UNDERTAKINGS

             None
    
                                      C-7
<PAGE>

                                   SIGNATURES
   
     Pursuant to the  requirements  of the  Securities  Act and the  Investment
Company Act, the Registrant certifies that it has duly caused this amendment to
its registration statement to be signed on its behalf by the undersigned,  duly
authorized,  in the City of San  Antonio  and  State of Texas on the 6th day of
July, 1998.
    
                                                  USAA INVESTMENT TRUST

                                                  /S/ MICHAEL J. C. ROTH
                                                  Michael J.C. Roth
                                                  President
   
      Pursuant to the requirements of the Securities Act, this amendment to the
registration  statement has been signed below by the  following  persons in the
capacities and on the date(s) indicated.
    
    (Signature)                        (Title)                        (Date)
   
/S/ ROBERT G. DAVIS              Chairman of the                   July 8, 1998
- -------------------------
Robert G. Davis                  Board of Trustees

/S/ MICHAEL J. C. ROTH           Vice Chairman of the Board        July 6, 1998
- -------------------------        of Trustees and President
Michael J.C. Roth                (Principal Executive Officer)

/S/ SHERRON A. KIRK              Treasurer (Principal              July 7, 1998
- -------------------------        Financial and
Sherron A. Kirk                  Accounting Officer)

/S/ JOHN W. SAUNDERS, JR.        Trustee                           July 7, 1998
- -------------------------
John W. Saunders, Jr.

/S/ ROBERT L. MASON              Trustee                           July 8, 1998
- -------------------------
Robert L. Mason

/S/ HOWARD L. FREEMAN, JR.       Trustee                           July 8, 1998
Howard L. Freeman, Jr.

/S/ RICHARD A. ZUCKER            Trustee                           July 8, 1998
- -------------------------
Richard A. Zucker

/S/ BARBARA B. DREEBEN           Trustee                           July 8, 1998
- -------------------------
Barbara B. Dreeben
    
                                      C-8
<PAGE>

                                 EXHIBIT INDEX

EXHIBIT                        ITEM                                  PAGE NO. *
- -------                        ----                                  ----------
      1 (a)  First Amended and Restated Master Trust Agreement,
              June 2, 1995 (1)
        (b)  Amendment No. 1 dated July 12, 1995 (2)

      2      Voting trust agreement - Not Applicable
   
      3      SPECIMEN CERTIFICATES FOR SHARES OF
    
        (a)  Cornerstone Strategy Fund (2)
        (b)  Gold Fund (2)
        (c)  International Fund (2)
        (d)  Growth and Tax Strategy Fund (2)
        (e)  GNMA Trust (2)
        (f)  Treasury Money Market Trust (2)
        (g)  World Growth Fund (2)
        (h)  Emerging Markets Fund (2)
        (i)  Balanced Strategy Fund (2)
        (j)  Growth Strategy Fund (2)
        (k)  Income Strategy Fund (2)
   
      4 (a)  Advisory  Agreement  dated  September  21,  1990  (1)
    
        (b)  Letter Agreement dated January 24, 1991 adding GNMA Trust
              and Treasury Money Market Trust (1)
        (c)  Letter Agreement dated July 21, 1992 adding World Growth
              Fund (1)
        (d)  Letter Agreement dated September 7, 1994 adding Emerging
              Markets Fund (1)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced
              Strategy, Growth Strategy and Income Strategy Funds (2)
   
      5 (a)  Underwriting  Agreement dated July 9, 1990 (2)
    
        (b)  Letter Agreement dated January 24, 1991 adding GNMA Trust
              and Treasury Money Market Trust (2)
        (c)  Letter Agreement dated July 21, 1992 adding World Growth Fund (2)
        (d)  Letter Agreement dated September 7, 1994 adding Emerging
              Markets Fund (2)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced
              Strategy, Growth Strategy and Income Strategy Funds (2)
   
      6      Not Applicable

      7 (a)  Custodian Agreement dated July 27, 1984 (2)
    
        (b)  Amendment to Custodian Contract dated May 13, 1985 (2)
        (c)  Amendment to Custodian Contract dated May 1, 1986 (2)
        (d)  Amendment to Amendment to Custodian Contract dated May 1, 1986 (2)
        (e)  Amendment to the Custodian Agreement dated November 3, 1988 (2)
        (f)  Letter Agreement dated May 26, 1988 adding International Fund (2)
        (g)  Letter Agreement dated January 3, 1989 adding Growth and
              Tax Strategy Fund (2)

                                      C-9
<PAGE>

                              EXHIBIT INDEX, CONT.

EXHIBIT                        ITEM                                  PAGE NO. *
- -------                        ----                                  ----------
        (h)  Letter  Agreement  dated January 24, 1991 adding GNMA
              Trust and Treasury Money Market Trust (2)
        (i)  Letter Agreement  dated July 21, 1992 adding World Growth Fund (2)
        (j)  Letter Agreement dated September 7, 1994 adding Emerging
              Markets Fund (2)
        (k)  Letter Agreement dated September 1, 1995 adding Balanced
              Strategy, Growth Strategy and Income Strategy Funds (2)
        (l)  Subcustodian Agreement dated March 24, 1994 (4)
        (m)  Amendment to Custodian Contract dated May 13, 1996 (4)
   
      8 (a)  Transfer Agency Agreement dated January 23, 1992 (2)
    
        (b)  Letter Agreement dated July 21, 1992 adding World Growth Fund (2)
        (c)  Letter Agreement dated September 7, 1994 adding Emerging
              Markets Fund (2)
        (d)  Amendments dated May 3, 1995 to the Transfer Agency Agreement
              Fee Schedules for Gold Fund, Cornerstone Strategy Fund,
              International Fund, Growth and Tax Strategy Fund, GNMA Trust,
              Treasury Money Market Trust, World Growth Fund, and Emerging
              Markets Fund (2)
        (e)  Letter Agreement dated September 1, 1995 adding Balanced 
              Strategy, Growth Strategy and Income Strategy Funds (2)
        (f)  Amendment No. 1 to Transfer Agency Agreement dated
              November 14, 1995 (3)
   
        (g)  Master Revolving Credit Facility Agreement with 
              USAA Capital Corporation  dated  January 13, 1998
              (filed  herewith)                                             351
        (h)  Master Revolving Credit Facility Agreement with 
              NationsBank of Texas dated January 14, 1998 (filed herewith)  374

      9 (a)  Opinion of Counsel with  respect to the  Balanced  Strategy,
               Growth Strategy and Income Strategy Funds (1)
    
        (b)  Opinion of Counsel with respect to the Growth and Tax
              Strategy Fund, Cornerstone Strategy Fund, Emerging Markets
              Fund, Gold Fund, International Fund, World Growth Fund,
              GNMA Trust, and Treasury Money Market Trust (2)
        (c)  Consent of Counsel (filed herewith)                            402
   
     10      Consent of Independent Accountants (filed herewith)            404

     11      Omitted financial statements - Not Applicable

     12      SUBSCRIPTIONS AND INVESTMENT LETTERS
    
        (a)  GNMA Trust and Treasury Money Market Trust (2)
        (b)  World Growth Fund (2)
        (c)  Emerging Markets Fund (2)

                                     C-10
<PAGE>

                              EXHIBIT INDEX, CONT.

EXHIBIT                        ITEM                                  PAGE NO. *
- -------                        ----                                  ----------

        (d)  Growth Strategy Fund, Income Strategy Fund, and Balanced
                Strategy Fund (2)
   
     13      12b-1 Plans - Not Applicable

     14      FINANCIAL DATA SCHEDULES
        (a)  Cornerstone Strategy Fund (filed herewith)                     406
        (b)  Gold Fund (filed herewith)                                     408
        (c)  International Fund (filed herewith)                            410
        (d)  Growth and Tax Strategy Fund (filed herewith)                  412
        (e)  GNMA Trust (filed herewith)                                    414
        (f)  Treasury Money Market Trust (filed herewith)                   416
        (g)  World Growth Fund (filed herewith)                             418
        (h)  Emerging Markets Fund (filed herewith)                         420
        (i)  Income Strategy Fund (filed herewith)                          422
        (j)  Balanced Strategy Fund (filed herewith)                        424
        (k)  Growth Strategy Fund (filed herewith)                          426

     15      Plan Adopting Multiple Classes of Shares - Not Applicable

     16      POWERS OF ATTORNEY
    
        (a)  Powers of Attorney for Michael J.C. Roth, Sherron A. Kirk,
              John W. Saunders, Jr., George E. Brown, Howard L. Freeman,
              Jr., and Richard A. Zucker dated January 21, 1994 (2)
        (b)  Power of Attorney for Barbara B. Dreeben (1)
        (c)  Power of Attorney for Robert G. Davis dated July 9, 1997 (5)
        (d)  Power of Attorney for Robert L. Mason dated July 9, 1997 (5)

 (1)  Previously filed with Post-Effective  Amendment No. 20  of the Registrant
      (No. 2-91069)  filed with the  Securities and Exchange Commission on June
      15, 1995.
 (2)  Previously filed with  Post-Effective  Amendment No. 21 of the Registrant
      (No.  2-91069)  filed with the  Securities  and  Exchange  Commission  on
      September 26, 1995.
 (3)  Previously filed with  Post-Effective  Amendment No. 22 of the Registrant
      (No.  2-91069)  filed with the  Securities  and  Exchange  Commission  on
      January 26, 1996.
 (4)  Previously filed with  Post-Effective  Amendment No. 23 of the Registrant
      (No. 2-91069) filed with the Securities and Exchange Commission on August
      1, 1996.
 (5)  Previously filed with  Post-Effective  Amendment No. 24 of the Registrant
      (No.  2-91069) filed with the Securities and Exchange  Commission on July
      31, 1997.
- ----------------
   *    Refers to sequentially numbered pages

                                     C-11
<PAGE>

                                 EXHIBIT 8(g)
<PAGE>
January 13, 1998

USAA Mutual Fund, Inc.,
USAA Investment Trust,
USAA Tax Exempt Fund, Inc., and
USAA State Tax-Free Trust, on behalf of and for the
benefit of the series
of funds comprising each such Borrower
as set forth on Schedule A hereto
9800 Fredericksburg Road
San Antonio, Texas 78288

Attention: Michael J.C. Roth, President

Gentlemen:

This  Facility  Agreement  Letter (this  "Agreement")  sets forth the terms and
conditions  for loans (each a "Loan" and  collectively  the "Loans") which USAA
Capital  Corporation  ("CAPCO")  may from time to time make  during  the period
commencing January 13, 1998 and ending January 12, 1999 (the "Facility Period")
to USAA Mutual Fund, Inc., USAA Investment  Trust,  USAA Tax Exempt Fund, Inc.,
and USAA State Tax-Free Trust,  and each investment  company which may become a
party hereto  pursuant to the terms of this  Agreement  (each a "Borrower"  and
collectively  the  "Borrowers"),  each of which is executing  this Agreement on
behalf  of and for the  benefit  of the  series of funds  comprising  each such
Borrower as set forth on Schedule A hereto (as hereafter modified or amended in
accordance with the terms hereof) (each a "Fund" and collectively the "Funds"),
under a master  revolving  credit  facility (the  "Facility").  USAA Investment
Management  Company is the Manager and  Investment  Advisor of each Fund.  This
Agreement replaces in its entirety that certain Facility Agreement Letter dated
January 14, 1997,  between the  Borrowers  and CAPCO.  CAPCO and the  Borrowers
hereby agree as follows:

     1.  AMOUNT.  The  aggregate  principal  amount of the  Loans  which may be
advanced  under this Facility  shall not exceed,  at any one time  outstanding,
Seven Hundred Fifty Million  Dollars  ($750,000,000).  The aggregate  principal
amount of the Loans which may be  borrowed  by a Borrower  for the benefit of a
particular  Fund under this Facility shall not exceed the borrowing  limit (the
"Borrowing  Limit") on  borrowings  applicable  to such  Fund,  as set forth on
Schedule A hereto.

     2. PURPOSE AND  LIMITATIONS  ON  BORROWINGS.  Each  Borrower  will use the
proceeds of each Loan made to it solely for temporary or emergency  purposes of
the Fund for whose  benefit it is  borrowing  in  accordance  with such  Fund's
Borrowing Limit (Schedule A) and prospectus in effect at the time of such Loan.
Portfolio  securities  may not be  purchased  by a Fund  while  there is a Loan
outstanding  under the Facility or any other facility,  if the aggregate 
<PAGE>
amount of such Loan and any other such loan  exceeds 5% of the total  assets of
such Fund.

     3.  BORROWING  RATE AND  MATURITY  OF  LOANS.  CAPCO  may make  Loans to a
Borrower and the principal  amount of the Loans  outstanding  from time to time
shall  bear  interest  at a rate per  annum  equal  to the rate at which  CAPCO
obtains funding in the capital markets plus a standard mark-up to cover CAPCO's
operating costs (not to exceed 8 basis points).  Interest on the Loans shall be
calculated  on the basis of a year of 360 days and the actual days  elapsed but
shall not exceed the highest lawful rate.  Each loan will be for an established
number  of  days   agreed   upon  by  the   applicable   Borrower   and  CAPCO.
Notwithstanding the above, all Loans to a Borrower shall be made available at a
rate per annum equal to the rate at which CAPCO would make loans to  affiliates
and  subsidiaries.  Further,  if the  CAPCO  rate  exceeds  the rate at which a
Borrower  could  obtain  funds  pursuant  to the  NationsBank  of  Texas,  N.A.
("NationsBank")  364-day   committed   $100,000,000   Master  Revolving  Credit
Facility,  the  Borrower  will in the absence of  predominating  circumstances,
borrow from  NationsBank.  Any past due principal and/or accrued interest shall
bear  interest at a rate per annum equal to the  aggregate of the Federal Funds
Rate plus 1 percent (100 basis points) and shall be payable on demand.

     4. ADVANCES,  PAYMENTS,  PREPAYMENTS AND READVANCES.  Upon each Borrower's
request,  and subject to the terms and conditions  contained herein,  CAPCO may
make Loans to each Borrower on behalf of and for the benefit of its  respective
Fund(s) during the Facility  Period,  and each Borrower may at CAPCO's sole and
absolute  discretion,  borrow,  repay and reborrow funds  hereunder.  The Loans
shall be evidenced by a duly executed and delivered Master Grid Promissory Note
in the form of Exhibit A. Each Loan  shall be in an  aggregate  amount not less
than One Hundred Thousand United States Dollars (U.S.  $100,000) and increments
of One Thousand United States Dollars (U.S. $1,000) in excess thereof.  Payment
of principal and interest due with respect to each Loan shall be payable at the
maturity of such Loan and shall be made in funds immediately available to CAPCO
prior to 2 p.m.  San Antonio  time on the day such  payment is due, or as CAPCO
shall  otherwise  direct  from  time to time  and,  subject  to the  terms  and
conditions  hereof,  may  be  repaid  with  the  proceeds  of a  new  borrowing
hereunder. Notwithstanding any provision of this Agreement to the contrary, all
Loans, accrued but unpaid interest and other amounts payable hereunder shall be
due and payable upon  termination of the Facility  (whether by  acceleration or
otherwise).

     5. FACILITY FEE. As this Facility is uncommitted, no facility fee shall be
charged by CAPCO.

     6. OPTIONAL TERMINATION.  The Borrowers shall have the right upon at least
three (3)  business  days  prior  written  notice to CAPCO,  to  terminate  the
Facility.

     7. MANDATORY TERMINATION OF THE FACILITY. The Facility, unless extended by
written  amendment,  shall  automatically  terminate  on  the  last  day of the
Facility Period and any Loans then outstanding  (together with accrued interest
thereon and any other amounts owing hereunder) shall be due and payable on such
date.

                                       2
<PAGE>
     8. UNCOMMITTED FACILITY. The Borrowers acknowledge that the Facility is an
uncommitted  facility and that CAPCO shall have no  obligation to make any Loan
requested during the Facility Period under this Agreement. Further, CAPCO shall
not make any Loan if this Facility has been terminated by the Borrowers,  or if
at the time of a request for a Loan by a Borrower (on behalf of the  applicable
Fund(s)) there exists any Event of Default or condition which, with the passage
of time or giving of notice,  or both,  would  constitute or become an Event of
Default with respect to such Borrower (or such applicable Fund(s)).

     9. LOAN  REQUESTS.  Each  request for a Loan (each a  "Borrowing  Notice")
shall be in writing by the applicable Borrower(s), except that such Borrower(s)
may make an oral  request  (each an "Oral  Request")  provided  that  each Oral
Request  shall be followed by a written  Borrowing  Notice  within one business
day. Each Borrowing  Notice shall specify the following  terms ("Terms") of the
requested  Loan:  (i) the date on which such Loan is to be disbursed,  (ii) the
principal amount of such Loan,  (iii) the Borrower(s)  which are borrowing such
Loan and the  amount of such Loan to be  borrowed  by each  Borrower,  (iv) the
Funds for whose  benefit the loan is being  borrowed and the amount of the Loan
which is for the benefit of each such Fund, and (v) the requested maturity date
of the Loan.  Each  Borrowing  Notice  shall also set forth the total assets of
each Fund for whose  benefit a portion of the Loan is being  borrowed as of the
close of business on the day  immediately  preceding the date of such Borrowing
Notice.  Borrowing notices shall be delivered to CAPCO by 9:00 a.m. San Antonio
time on the day the Loan is requested to be made.

Each  Borrowing  Notice  shall  constitute  a  representation  to  CAPCO by the
applicable  Borrower(s)  that  all of the  representations  and  warranties  in
Section  12 hereof  are true and  correct  as of such date and that no Event of
Default or other  condition which with the passage of time or giving of notice,
or both, would result in an Event of Default, has occurred or is occurring.

     10. CONFIRMATIONS;  CREDITING OF FUNDS; RELIANCE BY CAPCO. Upon receipt by
CAPCO of a Borrowing Notice:

         (a) CAPCO shall provide each applicable Borrower written  confirmation
of the Terms of such Loan via  facsimile  or  telecopy,  as soon as  reasonably
practicable;  provided, however, that the failure to do so shall not affect the
obligation of any such Borrower;

         (b)  CAPCO  shall  make  such  Loan in  accordance  with the  Terms by
transfer of the Loan amount in immediately  available  funds, to the account of
the  applicable  Borrower(s)  as specified in EXHIBIT B to this Agreement or as
such  Borrower(s)  shall  otherwise  specify to CAPCO in a writing signed by an
Authorized Individual (as defined in Section 11) of such Borrower(s); and

                                       3
<PAGE>
         (c) CAPCO shall make appropriate entries on the Note or the records of
CAPCO to reflect the Terms of the Loan; provided,  however, that the failure to
do so shall not affect the obligation of any Borrower.

CAPCO  shall be entitled  to rely upon and act  hereunder  pursuant to any Oral
Request  which it  reasonably  believes  to have  been  made by the  applicable
Borrower through an Authorized  Individual.  If any Borrower  believes that the
confirmation  relating to any Loan contains any error or  discrepancy  from the
applicable Oral Request, such Borrower will promptly notify CAPCO thereof.

     11. BORROWING RESOLUTIONS AND OFFICERS  CERTIFICATES.  Prior to the making
of any Loan pursuant to this  Agreement,  the Borrowers shall have delivered to
CAPCO (a) the duly executed Note, (b) Resolutions of each  Borrower's  Trustees
or Board of Directors authorizing such Borrower to execute, deliver and perform
this Agreement and the Note on behalf of the applicable Funds, (c) an Officer's
Certificate in substantially the form set forth in Exhibit D to this Agreement,
authorizing certain individuals ("Authorized  Individuals"),  to take on behalf
of each Borrower (on behalf of the applicable  Funds) actions  contemplated  by
this Agreement and the Note, and (d) the Opinion of Counsel to USAA  Investment
Management Company, Manager and Advisor to the Borrowers,  with respect to such
matters as CAPCO may reasonably request.

     12. REPRESENTATIONS AND WARRANTIES. In order to induce CAPCO to enter into
this  Agreement  and to make the Loans  provided for  hereunder,  each Borrower
hereby  makes with  respect to itself,  and as may be  relevant,  the series of
Funds comprising such Borrower,  the following  representations and warranties,
which shall survive the execution and delivery hereof and of the Note:

         (a)  ORGANIZATION,  STANDING,  ETC. The Borrower is a  corporation  or
trust duly organized,  validly existing,  and in good standing under applicable
state laws and has all  requisite  corporate  or trust power and  authority  to
carry  on  its  respective  businesses  as now  conducted  and  proposed  to be
conducted,  to enter into this Agreement and all other documents to be executed
by it in connection with the  transactions  contemplated  hereby,  to issue and
borrow under the Note and to carry out the terms hereof and thereof;

         (b) FINANCIAL INFORMATION; DISCLOSURE, ETC. The Borrower has furnished
CAPCO with certain financial statements of such Borrower with respect to itself
and the  applicable  Funds,  all of which such financial  statements  have been
prepared in accordance with generally accepted accounting principles applied on
a consistent  basis and fairly  present the  financial  position and results of
operations of such Borrower and the  applicable  Funds on the dates and for the
periods indicated. Neither this Agreement nor any financial statements, reports
or other documents or  certificates  furnished to CAPCO by such Borrower or the
applicable  Funds in  connection  with  the  transactions  contemplated  hereby
contain any untrue  statement of a material  fact or omit to state any material
fact necessary to make the statements  contained  herein or therein in light of
the circumstances when made not misleading;

                                       4
<PAGE>
         (c) AUTHORIZATION;  COMPLIANCE WITH OTHER INSTRUMENTS.  The execution,
delivery  and  performance  of this  Agreement  and the  Note,  and  borrowings
hereunder, have been duly authorized by all necessary corporate or trust action
of the Borrower and will not result in any  violation of or be in conflict with
or  constitute  a  default  under  any term of the  charter,  by- laws or trust
agreement  of  such  Borrower  or the  applicable  Funds,  or of any  borrowing
restrictions  or  prospectus  or statement of  additional  information  of such
Borrower or the applicable  Funds, or of any agreement,  instrument,  judgment,
decree,  order,  statute,  rule or governmental  regulation  applicable to such
Borrower,  or  result  in  the  creation  of  any  mortgage,  lien,  charge  or
encumbrance  upon any of the  properties  or  assets  of such  Borrower  or the
applicable  Funds  pursuant to any such term.  The Borrower and the  applicable
Funds are not in violation of any term of their respective charter,  by-laws or
trust  agreement,  and  such  Borrower  and  the  applicable  Funds  are not in
violation of any material term of any agreement or instrument to which they are
a party, or to the best of such Borrower's knowledge, of any judgment,  decree,
order, statute, rule or governmental regulation applicable to them;

         (d) SEC  COMPLIANCE.  The  Borrower  and the  applicable  Funds are in
compliance in all material  respects  with all federal and state  securities or
similar laws and  regulations,  including all material  rules,  regulations and
administrative orders of the Securities and Exchange Commission (the "SEC") and
applicable Blue Sky  authorities.  The Borrower and the applicable Funds are in
compliance  in  all  material  respects  with  all  of  the  provisions  of the
Investment  Company Act of 1940,  and such  Borrower has filed all reports with
the SEC that are required of it or the applicable Funds;

         (e) LITIGATION.  There is no action, suit or proceeding pending or, to
the best of the Borrower's  knowledge,  threatened against such Borrower or the
applicable  Funds in any court or before any  arbitrator or  governmental  body
which seeks to restrain any of the transactions  contemplated by this Agreement
or which, if adversely determined,  could have a material adverse effect on the
assets or business  operations of such Borrower or the applicable  Funds or the
ability of such  Borrower  and the  applicable  Funds to pay and perform  their
obligations hereunder and under the Notes; and

         (f)  BORROWERS'  RELATIONSHIP  TO FUNDS.  The  assets of each Fund for
whose benefit Loans are borrowed by the applicable  Borrower are subject to and
liable for such Loans and are available  (except as  subordinated to borrowings
under the NationsBank  committed  facility) to the applicable  Borrower for the
repayment of such Loans.

     13.  AFFIRMATIVE  COVENANTS  OF THE  BORROWERS.  Until  such time  as  all
amounts of principal  and  interest due to CAPCO by a Borrower  pursuant to any
Loan made to such Borrower is irrevocably  paid in full, and until the Facility
is terminated, such Borrower (for itself and on behalf of its respective Funds)
agrees:

                                       5
<PAGE>
         (a) To deliver to CAPCO as soon as  possible  and in any event  within
ninety  (90) days after the end of each fiscal  year of such  Borrower  and the
applicable  Funds,   Statements  of  Assets  and  Liabilities,   Statements  of
Operations and Statements of Changes in Net Assets of each  applicable Fund for
such fiscal  year,  as set forth in each  applicable  Fund's  Annual  Report to
shareholders  together  with a  calculation  of the maximum  amount  which each
applicable  Fund could borrow under its  Borrowing  Limit as of the end of such
fiscal year;

         (b) To deliver to CAPCO as soon as  available  and in any event within
seventy-five (75) days after the end of each semiannual period of such Borrower
and the applicable  Funds,  Statements of Assets and Liabilities,  Statement of
Operations and Statements of Changes in Net Assets of each  applicable  Fund as
of the end of such semiannual  period,  as set forth in each  applicable  Funds
Semiannual  Report to shareholders,  together with a calculation of the maximum
amount which each applicable Fund could borrow under its Borrowing Limit at the
end of such semiannual period;

         (c) To deliver to CAPCO prompt  notice of the  occurrence of any event
or  condition  which  constitutes,  or is likely to result in, a change in such
Borrower  or  any  applicable  Fund  which  could  reasonably  be  expected  to
materially  adversely  affect the  ability of any  applicable  Fund to promptly
repay outstanding Loans made for its benefit or the ability of such Borrower to
perform its obligations under this Agreement or the Note;

         (d) To do, or cause to be done,  all things  necessary to preserve and
keep in full force and effect the corporate or trust existence of such Borrower
and all  permits,  rights  and  privileges  necessary  for the  conduct  of its
businesses  and to comply in all material  respects with all  applicable  laws,
regulations and orders, including without limitation, all rules and regulations
promulgated by the SEC;

         (e) To  promptly  notify  CAPCO of any  litigation,  threatened  legal
proceeding or investigation by a governmental  authority which could materially
affect the ability of such Borrower or the  applicable  Funds to promptly repay
the outstanding Loans or otherwise perform their obligations hereunder; and

         (f) In the event a Loan for the  benefit of a  particular  Fund is not
repaid in full  within 10 days  after the date it is  borrowed,  and until such
Loan is repaid in full,  to deliver to CAPCO,  within two  business  days after
each Friday occurring after such 10th day, a statement  setting forth the total
assets of such Fund as of the close of business on each such Friday.

         (g) Upon the  request of CAPCO which may be made by CAPCO from time to
time in the event CAPCO in good faith  believes  that there has been a material
adverse change in the capital markets  generally,  to deliver to CAPCO,  within
two  business  days after such  request,  a statement  setting  forth the total
assets of each Fund for whose benefit a Loan is outstanding on the date of such
request. 
                                       6
<PAGE>
     14. NEGATIVE COVENANTS OF THE BORROWERS. Until such time as all amounts of
principal and interest due to CAPCO by a Borrower  pursuant to any Loan made to
such  Borrower  is  irrevocably  paid  in  full,  and  until  the  Facility  is
terminated,  such Borrower (for itself and on behalf of its  respective  Funds)
agrees:

         (a) Not to incur any  indebtedness  for  borrowed  money  (other  than
pursuant to the One Hundred  Million  Dollar  ($100,000,000)  committed  Master
Revolving Credit Facility with  NationsBank and for overdrafts  incurred at the
custodian  of the Funds  from time to time in the  normal  course of  business)
except the Loans,  without the prior  written  consent of CAPCO,  which consent
will not be unreasonably withheld; and

         (b)  Not  to  dissolve  or  terminate  its  existence,   or  merge  or
consolidate with any other person or entity,  or sell all or substantially  all
of its assets in a single transaction or series of related  transactions (other
than assets consisting of margin stock), each without the prior written consent
of CAPCO,  which  consent will not be  unreasonably  withheld;  provided that a
Borrower  may  without  such  consent  merge,  consolidate  with,  or  purchase
substantially all of the assets of, or sell substantially all of its assets to,
an affiliated  investment  company or series  thereof,  as provided for in Rule
17a-8 of the Investment Company Act of 1940.

     15. EVENTS OF DEFAULT.  If any of the following  events (each an "Event of
Default")  shall  occur  (it being  understood  that an Event of  Default  with
respect to one Fund or Borrower  shall not  constitute an Event of Default with
respect to any other Fund or Borrower):

         (a) Any Borrower or Fund shall  default in the payment of principal or
interest  on any Loan or any other fee due  hereunder  for a period of five (5)
days  after the same  becomes  due and  payable,  whether at  maturity  or with
respect to any Facility Fee at a date fixed for the payment thereof;

         (b) Any  Borrower  or Fund  shall  default  in the  performance  of or
compliance  with any term contained in Section 13 hereof and such default shall
not have been remedied  within thirty (30) days after  written  notice  thereof
shall have been given such Borrower or Fund by CAPCO;

         (c) Any  Borrower  or Fund  shall  default  in the  performance  of or
compliance with any term contained in Section 14 hereof;

         (d) Any  Borrower  or  Fund  shall  default  in  the  performance  or
compliance with any other term contained herein and such default shall not have
been remedied  within thirty (30) days after written  notice thereof shall have
been given such Borrower or Fund by CAPCO;

         (e) Any  representation  or warranty made by a Borrower or Fund herein
or 
                                       7
<PAGE>
pursuant  hereto  shall prove to have been false or  incorrect  in any material
respect when made;

         (f) An event of default shall occur and be continuing  under any other
facility;  then,  in any  event,  and at any time  thereafter,  if any Event of
Default  shall be  continuing,  CAPCO may by written  notice to the  applicable
Borrower or Fund (i)  terminate  the Facility  with respect to such Borrower or
Fund and (ii) declare the principal and interest in respect of any  outstanding
Loans  with  respect  to such  Borrower  or Fund,  and all  other  amounts  due
hereunder  with respect to such  Borrower or Fund,  to be  immediately  due and
payable  whereupon the principal and interest in respect  thereof and all other
amounts  due  hereunder   shall  become   forthwith  due  and  payable  without
presentment,  demand,  protest  or other  notice of any kind,  all of which are
expressly waived by the Borrowers.

     16. NEW BORROWERS;  NEW FUNDS. So long as no Event of Default or condition
which,  with the  passage  of time or the  giving  of  notice,  or both,  would
constitute  or become an Event of Default has occurred and is  continuing,  and
with the  prior  consent  of  CAPCO,  which  consent  will not be  unreasonably
withheld:

         (a) Any  investment  company  that  becomes part of the same "group of
investment  companies"  (as  that  term is  defined  in Rule  11a-3  under  the
Investment  Company Act of 1940) as the original  Borrowers to this  Agreement,
may, by  submitting  an amended  Schedule A and Exhibit B to this  Agreement to
CAPCO (which amended  Schedule A and Exhibit B shall replace the  corresponding
Schedule and Exhibit which are, then a part of this  Agreement)  and such other
documents as CAPCO may reasonably request, become a party to this Agreement and
may become a "Borrower" hereunder; and

         (b) A Borrower may, by submitting an amended  Schedule A and Exhibit B
to this  Agreement  to CAPCO  (which  amended  Schedule  A and  Exhibit B shall
replace the  corresponding  Schedule and Exhibit  which are then a part of this
Agreement),  add  additional  Funds for whose  benefit such Borrower may borrow
Loans.  No such  amendment  of  Schedule A to this  Agreement  shall  amend the
Borrowing Limit applicable to any Fund without the prior approval of CAPCO.

     17.  LIMITED  RECOURSE.  CAPCO  agrees (i) that any claim,  liability,  or
obligation  arising  hereunder  or under the Note  whether  on  account  of the
principal of any Loan,  interest thereon,  or any other amount due hereunder or
thereunder  shall be satisfied  only from the assets of the  specific  Fund for
whose  benefit a Loan is  borrowed  and in any event in an amount not to exceed
the outstanding  principal amount of any Loan borrowed for such Fund's benefit,
together  with  accrued and unpaid  interest  due and owing  thereon,  and such
Fund's  share  of any  other  amount  due  hereunder  and  under  the  Note (as
determined in accordance with the provisions hereof) and (ii) that no assets of
any fund shall be used to satisfy any claim,  liability,  or obligation arising
hereunder or under the Note with respect to the outstanding principal amount of
any Loan  borrowed  for the benefit of any other Fund or any accrued and unpaid
interest  due 

                                       8
<PAGE>
and owing  thereon or such other Fund's share of any other amount due hereunder
and under the Note (as determined in accordance with the provisions hereof).

     18.  REMEDIES ON DEFAULT.  In case any one or more Events of Default shall
occur and be continuing, CAPCO may proceed to protect and enforce its rights by
an action at law, suit in equity or other appropriate proceedings,  against the
applicable  Borrower(s)  and/or  Fund(s),  as the case may be. In the case of a
default  in the  payment of any  principal  or  interest  on any Loan or in the
payment of any fee due hereunder,  the relevant  Fund(s) (to be allocated among
such Funds as the Borrowers deem  appropriate)  shall pay to CAPCO such further
amount as shall be  sufficient  to cover the cost and  expense  of  collection,
including, without limitation, reasonable attorney's fees and expenses.

     19. NO WAIVER OF REMEDIES. No course of  dealing  or  failure or  delay on
the part of CAPCO in exercising any right or remedy hereunder or under the Note
shall  constitute a waiver of any right or remedy  hereunder or under the Note,
nor shall any partial  exercise of any right or remedy  hereunder  or under the
Note preclude any further  exercise  thereof or the exercise of any other right
or remedy  hereunder  or under the Note.  Such  rights and  remedies  expressly
provided are cumulative and not exclusive of any rights or remedies which CAPCO
would otherwise have.

     20.  EXPENSES.  The  Fund(s)  (to be  allocated  among  the  Funds  as the
Borrowers deem  appropriate)  shall pay on demand all reasonable  out-of-pocket
costs and expenses (including reasonable attorney's fees and expenses) incurred
by  CAPCO  in  connection  with  the  collection  and  any  other   enforcement
proceedings of or regarding this Agreement, any Loan or the Note.

     21.  BENEFIT OF  AGREEMENT.  This  Agreement and the Note shall be binding
upon  and  inure  for  the  benefit  of and be  enforceable  by the  respective
successors  and assigns of the parties  hereto;  provided that no party to this
Agreement  or the Note may  assign any of its rights  hereunder  or  thereunder
without the prior written consent of the other parties.

     22.  NOTICES.  All  notices  hereunder  and  all  written,   facsimile  or
telecopied  confirmations  of Oral Requests made hereunder shall be sent to the
Borrowers as indicated on EXHIBIT B and to CAPCO as indicated on EXHIBIT C.

     23.  MODIFICATIONS.  No  provision  of this  Agreement  or the Note may be
waived,  modified  or  discharged  except by mutual  written  agreement  of all
parties. THIS WRITTEN LOAN AGREEMENT AND THE NOTE REPRESENT THE FINAL AGREEMENT
BETWEEN  THE  PARTIES  AND  MAY  NOT BE  CONTRADICTED  BY  EVIDENCE  OF  PRIOR,
CONTEMPORANEOUS  OR SUBSEQUENT  ORAL  AGREEMENTS  OF THE PARTIES.  THERE ARE NO
UNWRITTEN AGREEMENTS BETWEEN THE PARTIES.

     24.  GOVERNING LAW AND  JURISDICTION.  This Agreement shall be governed by
and
                                       9
<PAGE>
construed in accordance  with the laws of the state of Texas without  regard to
the choice of law provisions thereof.

     25.  TRUST  DISCLAIMER.  Neither  the  shareholders,  trustees,  officers,
employees and other agents of any Borrower or Fund shall be personally bound by
or liable for any indebtedness,  liability or obligation hereunder or under the
Note nor shall resort be had to their private  property for the satisfaction of
any obligation or claim hereunder.

If this letter  correctly  reflects your agreement with us, please execute both
copies hereof and return one to us,  whereupon this Agreement  shall be binding
upon the Borrowers, the Funds and CAPCO.

Sincerely,

USAA CAPITAL CORPORATION

By:     /s/ LAURIE B. BLANK         
        ----------------------------
        Laurie B. Blank
        Vice President-Treasurer

AGREED AND ACCEPTED this 13th
Day of January, 1998.

USAA MUTUAL FUND, INC.,
on behalf of and for the benefit
of its series of Funds as set forth 
on Schedule A to this Agreement

By:     /s/ MICHAEL J.C. ROTH      
        ----------------------------
        Michael J.C. Roth
        President

USAA INVESTMENT TRUST,
on behalf of and for the benefit
of its series of Funds as set forth 
on Schedule A to this Agreement

By:     /s/ MICHAEL J.C. ROTH      
        ----------------------------
        Michael J.C. Roth
        President

                                      10
<PAGE>
USAA TAX EXEMPT FUND, INC.,
on behalf of and for the benefit
of its series of Funds as set forth
on Schedule A to this Agreement

By:     /s/ MICHAEL J.C. ROTH      
        ----------------------------
        Michael J.C. Roth
        President

USAA STATE TAX-FREE TRUST,
on behalf of and for the benefit
of its series of Funds as set forth 
on Schedule A to this Agreement

By:     /s/ MICHAEL J.C. ROTH      
        ----------------------------
        Michael J.C. Roth
        President

                                      11
<PAGE>
                                  SCHEDULE A

                       FUNDS FOR WHOSE BENEFIT LOANS CAN
                      BE BORROWED UNDER FACILITY AGREEMENT

BORROWER                        FUNDS                        BORROWING LIMIT

USAA Mutual Fund, Inc.          USAA Aggressive Growth       5% of Total Assets
                                USAA Growth & Income                    "
                                USAA Income Stock                       "
                                USAA Short-Term Bond                    "
                                USAA Money Market                       "
                                USAA Growth                             "
                                USAA Income                             "
                                USAA S&P 500 Index                      "
                                USAA Science & Technology               "
                                USAA First Start Growth                 "

USAA Investment Trust           USAA Cornerstone Strategy               "
                                USAA Gold                               "
                                USAA International                      "
                                USAA World Growth                       "
                                USAA GNMA Trust                         "
                                USAA Treasury Money Market Trust        "
                                USAA Emerging Markets                   "
                                USAA Growth and Tax Strategy            "
                                USAA Balanced Strategy                  "
                                USAA Growth Strategy                    "
                                USAA Income Strategy                    "

USAA Tax Exempt Fund, Inc.      USAA Long-Term                          "
                                USAA Intermediate-Term                  "
                                USAA Short-Term                         "
                                USAA Tax Exempt Money Market            "
                                USAA California Bond                    "
                                USAA California Money Market            "
                                USAA New York Bond                      "
                                USAA New York Money Market              "
                                USAA Virginia Bond                      "
                                USAA Virginia Money Market              "

USAA State Tax-Free Trust       USAA Florida Tax-Free Income            "
                                USAA Florida Tax-Free Money Market      "
                                USAA Texas Tax-Free Income              "
                                USAA Texas Tax-Free Money Market        "
 .16901
<PAGE>
                                                                      EXHIBIT A

                          MASTER GRID PROMISSORY NOTE

U.S. $750,000,000                                       Dated: January 13, 1998

     FOR  VALUE  RECEIVED,  each  of the  undersigned  (each a  "Borrower"  and
collectively the "Borrowers"),  severally and not jointly, on behalf of and for
the benefit of the series of funds  comprising  each such Borrower as listed on
Schedule A to the  Agreement as defined  below (each a "Fund" and  collectively
the "Funds") promises to pay to the order of USAA Capital Corporation ("CAPCO")
at CAPCO's  office  located at 9800  Fredericksburg  Road,  San Antonio,  Texas
78288,  in  lawful  money of the  United  States  of  America,  in  immediately
available  funds,  the  principal  amount  of all  Loans  made by CAPCO to such
Borrower for the benefit of the applicable  Funds under the Facility  Agreement
Letter dated January 13, 1998 (as amended or modified, the "Agreement"),  among
the  Borrowers and CAPCO,  together with interest  thereon at the rate or rates
set forth in the Agreement.  All payments of interest and principal outstanding
shall be made in accordance with the terms of the Agreement.

     This Note  evidences  Loans  made  pursuant  to,  and is  entitled  to the
benefits  of,  the  Agreement.  Terms not  defined in this Note shall be as set
forth in the Agreement.

     CAPCO is  authorized  to endorse the  particulars  of each Loan  evidenced
hereby  on  the  attached  Schedule  and  to  attach  additional  Schedules  as
necessary,  provided  that the failure of CAPCO to do so or to do so accurately
shall not affect the obligations of any Borrower (or the Fund for whose benefit
it is borrowing) hereunder.

     Each  Borrower  waives all claims to  presentment,  demand,  protest,  and
notice  of  dishonor.  Each  Borrower  agrees  to pay all  reasonable  costs of
collection,  including  reasonable  attorney's  fees  in  connection  with  the
enforcement of this Note.

     CAPCO hereby agrees (i) that any claim,  liability,  or obligation arising
hereunder  or under the  Agreement  whether on account of the  principal of any
Loan,  interest thereon,  or any other amount due hereunder or thereunder shall
be satisfied only from the assets of the specific Fund for whose benefit a Loan
is  borrowed  and in any  event in an  amount  not to  exceed  the  outstanding
principal  amount of any Loan borrowed for such Fund's  benefit,  together with
accrued and unpaid interest due and owing thereon, and such Fund's share of any
other amount due hereunder and under the Agreement (as determined in accordance
with the provisions of the Agreement) and (ii) that no assets of any Fund shall
be used to satisfy any claim,  liability,  or obligation  arising  hereunder or
under the Agreement  with respect to the  outstanding  principal  amount of any
Loan  borrowed  for the  benefit  of any other Fund or any  accrued  and unpaid
<PAGE>
interest  due and owing  thereon or such other Fund's share of any other amount
due hereunder and under the  Agreement  (as  determined in accordance  with the
provisions of the Agreement).

     Neither the shareholders,  trustees,  officers, employees and other agents
of any  Borrower  or Fund  shall  be  personally  bound  by or  liable  for any
indebtedness,  liability  or  obligation  hereunder or under the Note nor shall
resort be had to their private  property for the satisfaction of any obligation
or claim hereunder.

     Loans under the  Agreement  and this Note are  subordinated  to loans made
under the  $100,000,000  364-day  committed  Master Revolving  Credit  Facility
Agreement between the Borrowers and NationsBank of Texas,  N.A.  (NationsBank),
dated  January  14,  1998,  in the  manner  and to the  extent set forth in the
Agreement among the Borrowers, CAPCO and NationsBank, dated January 14, 1998.

     This Note shall be governed by the laws of the state of Texas.

                                           USAA MUTUAL FUND, INC.,
                                           on behalf of and for the benefit
                                           of its series of Funds as set forth 
                                           on Schedule A to the Agreement

                                           By:     /s/ MICHAEL J.C. ROTH    
                                                   ----------------------------
                                                   Michael J.C. Roth
                                                   President

                                           USAA INVESTMENT TRUST,
                                           on behalf of and for the benefit
                                           of its series of Funds as set forth 
                                           on Schedule A to the Agreement

                                           By:     /s/ MICHAEL J.C. ROTH   
                                                   ----------------------------
                                                   Michael J.C. Roth
                                                   President
<PAGE>
                                           USAA TAX EXEMPT FUND, INC.,
                                           on behalf of and for the benefit
                                           of its series of Funds as set forth
                                           on Schedule A to the Agreement

                                           By:     /s/ MICHAEL J.C. ROTH      
                                                   ----------------------------
                                                   Michael J.C. Roth
                                                   President

                                           USAA STATE TAX-FREE TRUST,
                                           on behalf of and for the benefit
                                           of its series of Funds as set forth 
                                           on Schedule A to the Agreement

                                           By:     /s/ MICHAEL J.C. ROTH       
                                                   ----------------------------
                                                   Michael J.C. Roth
                                                   President
 .16901
<PAGE>
                        LOANS AND PAYMENT OF PRINCIPAL

This  schedule  (grid) is  attached to and made a part of the  Promissory  Note
dated January 13, 1998,  executed by USAA MUTUAL FUND,  INC.,  USAA  INVESTMENT
TRUST,  USAA TAX EXEMPT FUND,  INC. AND USAA STATE  TAX-FREE TRUST on behalf of
and for the  benefit  of the  series of funds  comprising  each  such  Borrower
payable to the order of USAA CAPITAL CORPORATION.

[GRID]
Date of Loan

Borrower
and Fund

Amount of 
Loan

Type of Rate and
Interest Rate on Date 
of Borrowing

Amount of 
Principal Repaid

Date of 
Repayment

Other 
Expenses

Notation made 
by
<PAGE>
                                                                      EXHIBIT B

                            USAA CAPITAL CORPORATION
                                MASTER REVOLVING
                           CREDIT FACILITY AGREEMENT
                           BORROWER INFORMATION SHEET

BORROWER:  USAA MUTUAL FUND, INC., USAA INVESTMENT TRUST, USAA TAX EXEMPT FUND,
                       INC. AND USAA STATE TAX-FREE TRUST

ADDRESS FOR NOTICES AND OTHER COMMUNICATIONS TO THE BORROWER:

                       9800 Fredericksburg Road
                       San Antonio, Texas 78288 (For Federal Express, 78240)
                       Attention: John W. Saunders, Jr.
                                  Senior Vice President,
                                  Fixed Income Investments

                       Telephone: (210) 498-7320
                       Telecopy:  (210) 498-5689

                                  Harry W. Miller
                                  Senior Vice President,
                                  Equity Investments

                       Telephone: (210) 498-7344
                       Telecopy:  (210) 498-7332

ADDRESS FOR BORROWING AND PAYMENTS:

                       9800 Fredericksburg Road
                       San Antonio, Texas 78288
                       Attention: Caryl J. Swann

                       Telephone: (210) 498-7472
                       Telecopy:  (210) 498-0382 or 498-7819
                       Telex:           767424

INSTRUCTIONS FOR PAYMENTS TO BORROWER:

WE PAY VIA:    __X__FED FUNDS    ____CHIPS
<PAGE>
TO: (PLEASE PLACE BANK NAME,  CORRESPONDENT NAME (IF APPLICABLE),  CHIPS AND/OR
FED FUNDS ACCOUNT NUMBER BELOW)

STATE STREET BANK AND TRUST COMPANY, BOSTON, MASSACHUSETTS

ABA #011-00-0028

USAA MUTUAL FUND, INC. 
- ----------------------
USAA Aggressive Growth Fund                     Acct.# 6938-502-9
- -----------------------------------------------------------------
USAA Growth & Income Fund                       Acct.# 6938-519-3
- -----------------------------------------------------------------
USAA Income Stock Fund                          Acct.# 6938-495-6
- -----------------------------------------------------------------
USAA Short-Term Bond Fund                       Acct.# 6938-517-7
- -----------------------------------------------------------------
USAA Money Market Fund                          Acct.# 6938-498-0
- -----------------------------------------------------------------
USAA Growth Fund                                Acct.# 6938-490-7
- -----------------------------------------------------------------
USAA Income Fund                                Acct.# 6938-494-9
- -----------------------------------------------------------------
USAA S&P 500 Index Fund                         Acct.# 6938-478-2
- -----------------------------------------------------------------
USAA Science & Technology Fund                  Acct.# 6938-515-1
- -----------------------------------------------------------------
USAA First Start Growth Fund                    Acct.# 6938-468-3
- -----------------------------------------------------------------
USAA INVESTMENT TRUST
- ---------------------
USAA Cornerstone Strategy Fund                  Acct.# 6938-487-3
- -----------------------------------------------------------------
USAA Gold Fund                                  Acct.# 6938-488-1
- -----------------------------------------------------------------
USAA International Fund                         Acct.# 6938-497-2
- -----------------------------------------------------------------
USAA World Growth Fund                          Acct.# 6938-504-5
- -----------------------------------------------------------------
USAA GNMA Trust                                 Acct.# 6938-486-5
- -----------------------------------------------------------------
USAA Treasury Money Market Trust                Acct.# 6938-493-1
- -----------------------------------------------------------------
USAA Emerging Markets Fund                      Acct.# 6938-501-1
- -----------------------------------------------------------------
USAA Growth and Tax Strategy Fund               Acct.# 6938-509-4
- -----------------------------------------------------------------
USAA Balanced Strategy Fund                     Acct.# 6938-507-8
- -----------------------------------------------------------------
<PAGE>
USAA Growth Strategy Fund                       Acct.# 6938-510-2
- -----------------------------------------------------------------
USAA Income Strategy Fund                       Acct.# 6938-508-6
- -----------------------------------------------------------------
USAA TAX EXEMPT FUND, INC.
- --------------------------
USAA Long-Term Fund                             Acct.# 6938-492-3
- -----------------------------------------------------------------
USAA Intermediate-Term Fund                     Acct.# 6938-496-4
- -----------------------------------------------------------------
USAA Short-Term Fund                            Acct.# 6938-500-3
- -----------------------------------------------------------------
USAA Tax Exempt Money Market Fund               Acct.# 6938-514-4
- -----------------------------------------------------------------
USAA California Bond Fund                       Acct.# 6938-489-9
- -----------------------------------------------------------------
USAA California Money Market Fund               Acct.# 6938-491-5
- -----------------------------------------------------------------
USAA New York Bond Fund                         Acct.# 6938-503-7
- -----------------------------------------------------------------
USAA New York Money Market Fund                 Acct.# 6938-511-0
- -----------------------------------------------------------------
USAA Virginia Bond Fund                         Acct.# 6938-512-8
- -----------------------------------------------------------------
USAA Virginia Money Market Fund                 Acct.# 6938-513-6
- -----------------------------------------------------------------
USAA STATE TAX-FREE TRUST
- -------------------------
USAA Florida Tax-Free Income Fund               Acct.# 6938-473-3
- -----------------------------------------------------------------
USAA Florida Tax-Free Money Market Fund         Acct.# 6938-467-5
- -----------------------------------------------------------------
USAA Texas Tax-Free Income Fund                 Acct.# 6938-602-7
- -----------------------------------------------------------------
USAA Texas Tax-Free Money Market Fund           Acct.# 6938-601-9
- -----------------------------------------------------------------

 .16901
<PAGE>
                                                                      EXHIBIT C

                     ADDRESS FOR USAA CAPITAL CORPORATION

                           USAA Capital Corporation
                           9800 Fredericksburg Road
                           San Antonio, Texas 78288

                           Attention: Laurie B. Blank
                           Telephone No.: (210) 498-0825
                           Telecopy No.: (210) 498-6566


 .16901
<PAGE>
                                                                      EXHIBIT D

                             OFFICER'S CERTIFICATE

The undersigned  hereby certifies that he is the duly elected Secretary of USAA
Mutual Fund, Inc., USAA Investment  Trust,  USAA Tax Exempt Fund, Inc. and USAA
State Tax-Free  Trust and that he is authorized to execute this  Certificate on
behalf of USAA Mutual Fund, Inc., USAA Investment  Trust, USAA Tax Exempt Fund,
Inc. and USAA State Tax-Free Trust. The undersigned hereby further certifies to
the following:

The following  individuals  are duly authorized to act on behalf of USAA Mutual
Fund,  Inc., USAA Investment  Trust,  USAA Tax Exempt Fund, Inc. and USAA State
Tax-Free Trust, by transmitting telephonic, telex, or telecopy instructions and
other  communications  with regard to borrowing  and  payments  pursuant to the
uncommitted  Master Revolving  Credit Agreement with USAA Capital  Corporation.
The  signature  set  opposite  the  name  of  each  individual  below  is  that
individual's genuine signature.

NAME                            OFFICE                          SIGNATURE
- ----                            ------                          ---------

Michael J.C. Roth        President                    /s/ Michael J.C. Roth    
                                                      -------------------------
John W. Saunders, Jr.    Senior Vice President,
                         Fixed Income Investments     /s/ John W. Saunders, Jr.
                                                      -------------------------
Harry W. Miller          Senior Vice President,
                         Equity Investments           /s/ Harry W. Miller 
                                                      -------------------------
Kenneth E. Willmann      Vice President,
                         Mutual Fund Portfolios       /s/ Kenneth E. Willmann 
                                                      -------------------------
David G. Peebles         Vice President,
                         Equity Investments           /s/ David G. Peebles    
                                                      -------------------------
Sherron A. Kirk          Vice President,
                         Controller                   /s/ Sherron A. Kirk     
                                                      -------------------------
Caryl J. Swann           Manager, 
                         Mutual Fund Accounting       /s/ Caryl J. Swann      
                                                      -------------------------
IN WITNESS  WHEREOF,  I have executed this  Certificate  as of this 13th day of
January, 1998.

                                                      /s/ MICHAEL D. WAGNER   
                                                      ------------------------
                                                      MICHAEL D. WAGNER
                                                      Secretary
<PAGE>
I, Michael J.C.  Roth,  President of USAA Mutual Fund,  Inc.,  USAA  Investment
Trust,  USAA Tax Exempt Fund, Inc. And USAA State Tax-Free Trust hereby certify
that  Michael D. Wagner is, and has been at all times since a date prior to the
date of this Certificate,  the duly elected, qualified, and acting Secretary of
USAA Mutual Fund, Inc., USAA Investment  Trust,  USAA Tax Exempt Fund, Inc. And
USAA State  Tax-Free  Trust and that the  signature set forth above is his true
and correct signature.

DATE: January 13, 1998                                /s/ MICHAEL D. WAGNER  
                                                      ------------------------
                                                      MICHAEL J.C. ROTH
                                                      President

 .16901
<PAGE>
                                 EXHIBIT 8(h)
<PAGE>
January 14, 1998

USAA Mutual Fund, Inc.,
USAA Investment Trust,
USAA Tax Exempt Fund, Inc., and
USAA State Tax-Free Trust, on behalf of and for the
benefit of the series
of funds comprising each such Borrower
as set forth on Schedule A hereto
9800 Fredericksburg Road
San Antonio, Texas  78288

Attention:  Michael J.C. Roth, President

Gentlemen:

This  Facility Agreement  Letter (this "Agreement")  sets forth  the  terms and
conditions  for  loans  (each  a  "Loan"  and  collectively  the "Loans") which
NationsBank  of  Texas,  N.A.  (the  "Bank")  agrees to  make during the period
commencing January 14, 1998 and ending January 13, 1999 (the "Facility Period")
to USAA Mutual Fund, Inc., USAA  Investment Trust, USAA  Tax Exempt Fund, Inc.,
and USAA State Tax-Free Trust, and  each investment company which may  become a
party hereto  pursuant to  the terms of  this Agreement (each  a "Borrower" and
collectively  the "Borrowers"),  each of which  is executing this  Agreement on
behalf  of  and for  the benefit  of the  series  of funds comprising each such
Borrower as set forth on Schedule A hereto (as hereafter modified or amended in
accordance with the terms hereof) (each a "Fund" and collectively the "Funds"),
under  a master  revolving credit  facility (the  "Facility").  This  Agreement
replaces  in its  entirety that certain Facility Agreement Letter dated January
15,  1997, as  heretofore amended  or modified,  between the  Borrowers and the
Bank.  The Bank and the Borrowers hereby agree as follows:

     1.  AMOUNT.  The  aggregate principal  amount of  the Loans to be advanced
under this  Facility shall not exceed, at any one time outstanding, One Hundred
Million  United States  Dollars  (U.S. $100,000,000)  (the  "Commitment").  The
aggregate principal amount of the Loans which may be
<PAGE>
borrowed by a Borrower for the benefit of a particular Fund under  the Facility
and the  Other Facility (hereinafter  defined) shall  not exceed the percentage
(the  "Borrowing  Limit")  of the  total assets  of such  Fund as  set forth on
Schedule A hereto.

     2.  PURPOSE  AND LIMITATIONS  ON BORROWINGS.  Each  Borrower will  use the
proceeds of each Loan made to it solely for temporary or emergency  purposes of
the  Fund for  whose benefit  it is  borrowing in  accordance with  such Fund's
Borrowing Limit and prospectus in  effect at  the time of such Loan.  Portfolio
securities  may not  be purchased  by a Fund  while there is a Loan outstanding
under  the Facility and/or  a loan outstanding under the Other Facility for the
benefit of such Fund, if the  aggregate amount of such Loan and such other loan
exceeds 5% of the total assets of such Fund.  The Borrowers  will not, and will
not  permit any  Fund to,  directly or indirectly, use any proceeds of any Loan
for any  purpose which  would violate any  provision of any applicable statute,
regulation,  order or restriction, including, without limitation, Regulation U,
Regulation T, Regulation X or any other regulation of the Board of Governors of
the  Federal Reserve System or the Securities Exchange Act of 1934, as amended.
If requested by  the Bank, the  Borrowers will promptly furnish the Bank with a
statement  in conformity  with the  requirements of Federal Reserve Form U-1 as
referred to in Regulation U.

     3.  BORROWING RATE  AND MATURITY OF  LOANS.  The principal  amount of  the
Loans outstanding  from time to  time shall bear  interest at a rate per  annum
equal to, at the option of the applicable Borrower(s), (i) the aggregate of the
Federal Funds Rate (as defined below) plus .125 of one percent (1%) (12.5 basis
points) or (ii) the aggregate of the London Interbank Offered Rate (as  defined
below)  plus  12.5  basis  points.   The  rate  of  interest  payable  on  such
outstanding amounts shall change on each date that the Federal Funds Rate shall
change.  Interest  on the  Loans shall  be calculated on the basis of a year of
360 days and  the actual days elapsed  but shall not  exceed the highest lawful
rate.  Each  Loan will be for  an established  number of days to be agreed upon
by  the  applicable  Borrower(s) and  the  Bank  and,  in  the  absence of such
agreement, will  mature on  the earlier  of three months after the date of such
Loan  or the  last day of the Facility Period.   The term "Federal Funds Rate,"
as  used herein,  shall mean  the overnight rate for Federal funds transactions
between member banks of the Federal Reserve System, as published by the Federal
Reserve Bank  of New York or, if  not so published, as determined in good faith
by the Bank in  accordance with  its customary  practices; and the term "London
Interbank Offered Rate," as used herein, shall mean the rate per 
<PAGE>
annum at  which United  States dollar  deposits are  offered by the Bank in the
London  interbank market  at approximately  11:00 a.m. London time two business
days prior to the first day of the interest period (of 7 or 14 days or one, two
or three months as selected by the Borrower(s)) for which  the London Interbank
Offered Rate  is to be  in effect, as adjusted by the Bank in good faith and in
accordance  with its  customary practices  for any reserve costs imposed on the
Bank  under Federal  Reserve Board Regulation  D with respect to "Euro-currency
Liabilities".  The  London  Interbank  Offered  Rate  shall  not  be  available
hereunder if it would be unlawful  for the Bank to make or maintain Loans based
on such rate or if such rate  does not, in the good faith judgment of the Bank,
fairly reflect the cost to the Bank of making or maintaining Loans.  The London
Interbank Offered Rate shall not be available for any interest period which, if
such  rate  were available,  would begin  after the  occurrence and  during the
continuation of an Event of Default (as defined below).  Any past due principal
and/or  accrued interest  shall bear  interest at a rate per annum equal to the
aggregate of the Federal Funds Rate plus 1.125 percent (112.5 basis points) and
shall be  payable on  demand.  If the applicable Borrowers do not affirmatively
elect  to have  a Loan or  Loans bear  interest based  on the  London Interbank
Offered Rate  at least  two business  days prior to the first day of a possible
interest  period applicable  thereto, such  Loan or  Loans shall  bear interest
based on the Federal Funds Rate until such election is affirmatively made.

     4.  ADVANCES,  PAYMENTS, PREPAYMENTS AND READVANCES.  Upon each Borrower's
request, and  subject to  the terms  and conditions  contained herein, the Bank
shall  make Loans  to each  Borrower on  behalf of  and for  the benefit of its
respective  Fund(s) during  the Facility  Period, and each Borrower may borrow,
repay  and reborrow  funds hereunder.  The  Loans shall  be evidenced by a duly
executed  and delivered  Master Grid Promissory  Note in the form of EXHIBIT A.
Each  Loan shall be  in an aggregate  amount not less than One Hundred Thousand
United States  Dollars (U.S. $100,000)  and increments  of One Thousand  United
States  Dollars (U.S. $1,000)  in excess  thereof.  Payment  of  principal  and
interest due with respect to each Loan shall be payable at the maturity of such
Loan  and shall  be made in  funds immediately available to the Bank prior to 2
p.m. Dallas time on the day such payment is due, or as the Bank shall otherwise
direct  from time to time and, subject  to the terms and conditions hereof, may
be repaid with the proceeds of a new borrowing hereunder.  Notwithstanding  any
provision  of this  Agreement to  the contrary,  all Loans,  accrued but unpaid
interest  and other  amounts payable  hereunder shall  be due  and payable upon
termination of the Facility (whether by  
<PAGE>
acceleration or  otherwise).   If any Loan bearing interest based on the London
Interbank Offered  Rate is repaid or prepaid  other than on the last  day of an
interest  period applicable thereto,  the Fund which is the beneficiary of such
Loan  shall pay  to the  Bank promptly  upon demand  such amount  as  the  Bank
determines in good faith is necessary to compensate the Bank for any reasonable
cost  or  expense  incurred  by  the  Bank  as  a  result  of such repayment or
prepayment  in connection with  the reemployment of funds in an amount equal to
such  repayment or  prepayment.  Whenever the Bank seeks to assess for any such
cost or  expense it  will  provide  a  certificate  as  the  Borrower(s)  shall
reasonably request.

     5.  FACILITY  FEE.  Beginning  with the  date of  this Agreement and until
such time as  all Loans have  been irrevocably repaid  to the Bank in full, and
the Bank  is no longer  obligated  to  make Loans,  the  Funds (to be allocated
among  the Funds  as the  Borrowers  deem appropriate) shall  pay to the Bank a
facility  fee (the "Facility Fee") in the amount of .05 of one percent (5 basis
points) of  the amount of  the Commitment, as it  may be  reduced  pursuant  to
section  6.  The  Facility Fee  shall be payable quarterly in arrears beginning
March 31, 1998, and upon  termination of  the Facility (whether by acceleration
or otherwise).

     6.  OPTIONAL TERMINATION OR REDUCTION  OF COMMITMENT.  The Borrowers shall
have  the right  upon at least  three (3) business days prior written notice to
the Bank, to  terminate or reduce  the unused portion  of the  Commitment.  Any
such reduction of the  Commitment shall be in the amount of Five Million United
States Dollars (U.S. $5,000,000) or any larger integral multiple of One Million
United  States Dollars  (U.S. $1,000,000)  (except that any reduction may be in
the  aggregate amount  of the unused Commitment).  Accrued fees with respect to
the terminated Commitment shall be payable to the Bank on the effective date of
such termination.

     7.  MANDATORY   TERMINATION   OF   COMMITMENT.    The   Commitment   shall
automatically  terminate on  the last  day of the Facility Period and any Loans
then  outstanding (together with accrued interest thereon and any other amounts
owing hereunder) shall be due and payable on such date.

     8.  COMMITTED  FACILITY.  The  Bank  acknowledges  that the  Facility is a
committed  facility  and that  the Bank  shall be  obligated  to make  any Loan
requested during the Facility Period under this Agreement, subject to the
<PAGE>
terms  and conditions  hereof;  provided, however,  that the  Bank shall not be
obligated  to make  any Loan  if this  Facility  has  been  terminated  by  the
Borrowers,  or if  at the time of a request for a Loan by a Borrower (on behalf
of  the  applicable  Fund(s))  there  exists any  Event of Default or condition
which, with the passage of time or giving of notice, or both, would  constitute
or become an Event of Default with respect to such Borrower (or such applicable
Fund(s)).

     9.  LOAN REQUESTS.  Each  request for  a Loan (each a "Borrowing  Notice")
shall be in writing by the applicable Borrower(s), except that such Borrower(s)
may make  an oral request  (each an "Oral  Request") provided  that  each  Oral
Request  shall be  followed by  a written  Borrowing Notice within one business
day.  Each Borrowing Notice  shall specify the following terms ("Terms") of the
requested Loan:  (i) the date on  which such Loan  is to be disbursed, (ii) the
principal  amount of such  Loan, (iii) the Borrower(s) which are borrowing such
Loan  and the amount  of such  Loan to be  borrowed by  each Borrower, (iv) the
Funds for  whose benefit  the Loan is being borrowed and the amount of the Loan
which  is for the  benefit of each  such Fund, (v) whether such Loan shall bear
interest at  the Federal Funds  Rate or the  London Interbank Offered Rate, and
(vi) the requested maturity date of the Loan.  Each Borrowing Notice shall also
set forth the total assets of each Fund for whose benefit a portion of the Loan
is being borrowed as of the close of business on the day immediately  preceding
the date of such Borrowing Notice.  Borrowing Notices shall be delivered to the
Bank by 1:00 p.m. Dallas  time on the  day the Loan is  requested to be made if
such Loan is to bear interest based on the Federal Funds Rate or  by 10:00 a.m.
Dallas time on the second business day before  the Loan is requested to be made
if such Loan is to bear interest based on the London Interbank Offered Rate.

Each  Borrowing Notice  shall constitute  a representation  to the  Bank by the
applicable  Borrower(s) that  all of  the  representations  and  warranties  in
Section 12  hereof are  true and  correct as  of such date and that no Event of
Default or other condition which with  the passage of time or giving of notice,
or both, would result in an Event of Default, has occurred or is occurring.

     10.  CONFIRMATIONS;  CREDITING  OF  FUNDS;  RELIANCE  BY  THE  BANK.  Upon
receipt by the Bank of a Borrowing Notice:

          (a)  The   Bank   shall   send   each   applicable  Borrower  written
confirmation  of the  Terms of  such  Loan  via facsimile or  telecopy, as soon
<PAGE>
as reasonably  practicable; provided,  however, that the failure to do so shall
not affect the obligation of any such Borrower;

          (b)  The Bank  shall make  such Loan  in accordance with the Terms by
transfer of  the Loan  amount in immediately available funds, to the account of
the  applicable Borrower(s)  as specified  in EXHIBIT B to this Agreement or as
such Borrower(s)  shall otherwise specify to the Bank in a writing signed by an
Authorized  Individual (as defined  in Section 11) of such Borrower(s) and sent
to the Bank via facsimile or telecopy; and

          (c)  The  Bank shall  make appropriate  entries on  the Note  or  the
records  of the Bank  to reflect the Terms of the Loan; provided, however, that
the failure to do so shall not affect the obligation of any Borrower.

The Bank shall  be entitled to rely upon and act hereunder pursuant to any Oral
Request  which it  reasonably believes  to have  been made  by  the  applicable
Borrower through  an Authorized  Individual.  If any Borrower believes that the
confirmation  relating to  any Loan  contains any error or discrepancy from the
applicable Oral Request, such Borrower will promptly notify the Bank thereof.

     11.  BORROWING  RESOLUTIONS  AND  OFFICERS'  CERTIFICATES;   SUBORDINATION
AGREEMENT.  Prior  to the making  of any Loan  pursuant to  this Agreement, the
Borrowers shall  have delivered  to the Bank  (a) the duly  executed Note,  (b)
resolutions of each Borrower's Trustees or  Board of Directors authorizing such
Borrower  to execute, deliver and perform this Agreement and the Note on behalf
of the applicable Funds, (c) an Officer's Certificate in substantially the form
set forth  in EXHIBIT  D to  this  Agreement, authorizing  certain  individuals
("Authorized  Individuals"), to take  on behalf of  each Borrower (on behalf of
the applicable  Funds) actions contemplated by this Agreement and the Note, (d)
a subordination agreement in substantially the  form set forth  in EXHIBIT E to
this  Agreement, and  (e) the  opinion of counsel to USAA Investment Management
Company, manager and advisor to the Borrowers, with  respect to such matters as
the Bank may reasonably request.

     12.  REPRESENTATIONS AND WARRANTIES.  In order to induce the Bank to enter
into this Agreement and to make the Loans provided for hereunder, each Borrower
hereby makes  with respect to  itself, and as  may be relevant,  the series  of
Funds comprising such Borrower the following representations and 
<PAGE>
warranties,  which shall survive  the execution and delivery  hereof and of the
Note:

          (a)  ORGANIZATION, STANDING,  ETC.  The Borrower is  a corporation or
trust duly  organized, validly  existing, and in good standing under applicable
state  laws and has all  requisite corporate  or trust power  and authority  to
carry  on  its  respective  businesses  as  now  conducted  and  proposed to be
conducted, to  enter into this Agreement and all other documents to be executed
by  it  in connection with  the transactions  contemplated hereby, to issue and
borrow under the Note and to carry out the terms hereof and thereof;

          (b)  FINANCIAL  INFORMATION;  DISCLOSURE,  ETC.   The  Borrower   has
furnished  the  Bank  with  certain  financial statements of such Borrower with
respect  to  itself  and  the  applicable  Funds,  all  of which such financial
statements  have been prepared in accordance with generally accepted accounting
principles  applied  on a  consistent basis  and fairly  present  the financial
position and results of operations of such Borrower and the applicable Funds on
the  dates  and  for  the  periods  indicated.  Neither  this Agreement nor any
financial statements,  reports or other documents  or certificates furnished to
the  Bank  by  such  Borrower  or  the  applicable Funds in connection with the
transactions  contemplated hereby  contain any  untrue statement  of a material
fact  or omit  to state  any material  fact necessary  to make  the  statements
contained  herein or  therein in  light of  the  circumstances  when  made  not
misleading;

          (c)  AUTHORIZATION;   COMPLIANCE   WITH    OTHER  INSTRUMENTS.    The
execution,  delivery  and  performance  of  this  Agreement  and  the Note, and
borrowings hereunder, have  been duly authorized  by all necessary corporate or
trust action of  the Borrower and  will not result in any violation of or be in
conflict with or constitute a default under any term of the charter, by-laws or
trust agreement of  such Borrower or the applicable Funds,  or of any borrowing
restrictions  or prospectus  or statement  of additional  information  of  such
Borrower or  the applicable  Funds, or  of any agreement, instrument, judgment,
decree,  order, statute,  rule or governmental  regulation applicable  to  such
Borrower,  or  result  in  the  creation  of  any  mortgage,  lien,  charge  or
encumbrance  upon any  of the  properties  or assets   of such Borrower  or the
applicable  Funds pursuant  to any such  term.  The Borrower and the applicable
Funds are not in violation of any  term of their respective charter, by-laws or
trust  
<PAGE>
agreement,  and such Borrower and  the applicable Funds are not in violation of
any material term of  any agreement or instrument to which they are a party, or
to  the best  of such  Borrower's knowledge,  of any  judgment,  decree, order,
statute, rule or governmental regulation applicable to them;

          (d)  SEC COMPLIANCE.  The  Borrower and  the applicable  Funds are in
compliance  in all material  respects with  all federal and state securities or
similar  laws and  regulations, including  all material rules,  regulations and
administrative orders of the Securities and Exchange Commission (the "SEC") and
applicable Blue  Sky authorities.  The Borrower and the applicable Funds are in
compliance  in all  material  respects  with  all  of  the  provisions  of  the
Investment Company Act  of 1940,  and such Borrower  has filed all reports with
the SEC that are required of it or the applicable Funds;

          (e)  LITIGATION.  There is no action, suit or proceeding  pending or,
to the  best of the Borrower's  knowledge, threatened against  such Borrower or
the applicable Funds in any court or before any arbitrator or governmental body
which seeks to restrain any of the transactions  contemplated by this Agreement
or which, if adversely  determined, could have a material adverse effect on the
assets or  business operations of such Borrower  or the applicable Funds or the
ability  of such Borrower  and the applicable  Funds to pay  and perform  their
obligations hereunder and under the Notes; and

          (f)  BORROWERS' RELATIONSHIP  TO FUNDS.  The assets of  each Fund for
whose  benefit Loans are borrowed by the applicable Borrower are subject to and
liable for  such Loans and  are available  to the applicable  Borrower for  the
repayment of such Loans.

     13.  AFFIRMATIVE  COVENANTS OF  THE BORROWERS.   Until such  time  as  all
amounts of principal and interest due to the Bank by a Borrower pursuant to any
Loan made to such Borrower  is irrevocably  paid in full, and until the Bank is
no longer obligated  to make Loans to such Borrower,  such Borrower (for itself
and on behalf of its respective Funds) agrees:

          (a)  To  deliver to  the Bank  as soon as  possible and  in any event
within ninety (90) days after the end of each fiscal year  of such Borrower and
the applicable Funds, Statements of Assets and Liabilities,
<PAGE>
Statements  of Operations  and Statements  of Changes  in Net  Assets  of  each
applicable  Fund for  such fiscal  year, as set forth in each applicable Fund's
Annual  Report to  shareholders together  with a  calculation   of the  maximum
amount which each applicable Fund could borrow under its  Borrowing Limit as of
the end of such fiscal year;

          (b)  To  deliver to  the Bank  as soon  as available and in any event
within  seventy-five  (75) days after the end of each semiannual period of such
Borrower  and  the  applicable  Funds,  Statements of  Assets and  Liabilities,
Statements  of Operations  and Statements  of Changes  in Net  Assets  of  each
applicable Fund  as of  the end of such semiannual period, as set forth in each
applicable  Fund's   Semiannual   Report  to   shareholders,  together  with  a
calculation of the maximum amount which each applicable Fund could borrow under
its Borrowing Limit at the end of such semiannual period;

          (c)  To  deliver to  the Bank  prompt notice of the occurrence of any
event or  condition which  constitutes, or  is likely to result in, a change in
such  Borrower or  any applicable  Fund which  could reasonably  be expected to
materially  adversely affect  the ability  of any  applicable Fund  to promptly
repay outstanding Loans made for its benefit or the ability of such Borrower to
perform its obligations under this Agreement or the Note;

          (d)  To do, or cause to be done, all things necessary to preserve and
keep in full force and effect the corporate or trust existence of such Borrower
and  all permits,  rights and  privileges necessary  for  the  conduct  of  its
businesses  and to  comply in  all material  respects with all applicable laws,
regulations and orders, including without limitation, all rules and regulations
promulgated by the SEC;

          (e)  To promptly notify  the Bank of any litigation, threatened legal
proceeding  or investigation by a governmental authority which could materially
affect the ability of  such Borrower or the applicable Funds  to promptly repay
the outstanding Loans or otherwise perform their obligations hereunder;

          (f)  In the event a Loan for  the benefit of a particular Fund is not
repaid  in full within  10 days after  the date it  is borrowed, and until such
Loan is repaid in full, to deliver to the Bank, within two business
<PAGE>
days after each Friday occurring after such 10th day, a statement setting forth
the total assets of such Fund as of the close of business  on each such Friday;
and

          (g)  Upon  the  request  of the Bank, which may  be made by  the Bank
from time  to time in the event  the Bank in good faith believes that there has
been a material  adverse change in the capital markets generally, to deliver to
the Bank,  within two business days  after  such request,  a statement  setting
forth the total assets of each Fund for whose  benefit a Loan is outstanding on
the date of such request.

     14.  NEGATIVE COVENANTS  OF THE BORROWERS.  Until such time as all amounts
of principal  and interest due  to the Bank by a Borrower  pursuant to any Loan
made to such Borrower is  irrevocably paid in full,  and until the  Bank is  no
longer obligated to make Loans to such Borrower,  such Borrower (for itself and
on behalf of its respective Funds) agrees:

          (a)  Not  to incur  any indebtedness  for borrowed money  (other than
pursuant  to a $750,000,000  uncommitted master revolving  credit facility with
USAA Capital Corporation (the "Other  Facility") and overdrafts incurred at the
custodian  of the Funds  from time to time  in the ordinary course of business)
except the Loans, without the prior  written consent of the Bank, which consent
will not be unreasonably withheld; and

          (b)  Not  to  dissolve  or  terminate  its  existence,  or  merge  or 
consolidate with any  other person or  entity, or sell all or substantially all
of its assets in a single transaction or series  of related transactions (other
than assets consisting of margin stock), each without the prior written consent 
of the Bank,  which consent will not be  unreasonably withheld; provided that a
Borrower  may  without  such  consent  merge,  consolidate  with,  or  purchase
substantially all of the assets of, or sell substantially all of its assets to,
an  affiliated investment  company or series  thereof, as provided  for in Rule
17a-8 of the Investment Company Act of 1940.

     15.  EVENTS OF DEFAULT.  If any of the following events (each an "Event of
Default") shall  occur (it being  understood  that  an Event  of  Default  with
respect  to one Fund  or Borrower shall not constitute an Event of Default with
respect to any other Fund or Borrower):
<PAGE>
          (a)  Any Borrower  or Fund shall default in  the payment of principal
or interest on any Loan or any other fee due hereunder for a period of five (5)
days  after the  same becomes  due and  payable, whether  at maturity  or  with
respect to the Facility Fee at a date fixed for the payment thereof;

          (b)  Any  Borrower or Fund  shall default  in the  performance  of or
compliance  with any term contained in Section 13 hereof and such default shall
not  have been remedied  within thirty (30)  days after written  notice thereof
shall have been given such Borrower or Fund by the Bank;

          (c)  Any  Borrower or  Fund shall  default in  the performance  of or
compliance with any term contained in Section 14 hereof;

          (d)  Any  Borrower or  Fund  shall  default  in  the  performance  or
compliance with any other term contained herein and such default shall not have
been  remedied within thirty (30)  days after written notice thereof shall have
been given such Borrower or Fund by the Bank;

          (e)  Any representation or warranty made by a Borrower or Fund herein
or  pursuant hereto shall prove to have been false or incorrect in any material
respect when made;

          (f)  USAA  Investment Management  Company or any successor manager or
investment  adviser, provided that such  successor is a wholly-owned subsidiary
of  USAA Capital  Corporation, shall  cease to  be the  Manager and  investment
advisor of each Fund; or

          (g)  An  event of  default shall  occur and  be continuing  under the
Other Facility;

then, in any event,  and at any time thereafter,  if any Event of Default shall
be  continuing,  the Bank may  by written notice  to the applicable Borrower or
Fund (i) terminate  its commitment to make  any Loan hereunder,  whereupon said
commitment shall forthwith terminate without any  other notice of any kind with
respect to such Borrower or Fund and (ii) declare the principal and interest in
respect of any outstanding Loans with respect to such Borrower or Fund, and all
other  amounts due  hereunder with  respect to  such Borrower  or Fund,  to  be
immediately  due and  payable whereupon  the principal  and interest in respect
thereof and all other amounts due hereunder shall become  
<PAGE>
forthwith due and payable without presentment, demand, protest  or other notice
of any kind, all of which are expressly waived by the Borrowers.

     16.  NEW  BORROWERS;  NEW FUNDS.  So  long  as  no  Event  of  Default  or
condition  which, with  the passage of  time or the  giving of notice, or both,
would constitute or  become an Event of Default has occurred and is continuing,
and with the prior consent  of the Bank, which consent will not be unreasonably
withheld:

          (a)  Any investment  company that becomes  part of the same "group of
investment  companies" (as  that term  is  defined  in  Rule  11a-3  under  the
Investment Company  Act of 1940)  as the original  Borrowers to this Agreement,
may, by submitting an amended Schedule A and Exhibit B to this Agreement to the
Bank (which amended  Schedule A and Exhibit B  shall replace the Schedule A and
Exhibit B which are then a part of this  Agreement) and such other documents as
the  Bank may  reasonably request,  become a  party to  this Agreement  and may
become a "Borrower" hereunder; and

          (b)  A Borrower may, by submitting an  amended Schedule A and Exhibit
B to this Agreement  to the Bank (which amended  Schedule A and Exhibit B shall
replace the  Schedule A and Exhibit B which are then a part of this Agreement),
add additional Funds for whose benefit such Borrower may borrow Loans.  No such
amendment  of Schedule  A to this  Agreement shall  amend the  Borrowing  Limit
applicable to any Fund without the prior consent of the Bank.

     17.  LIMITED RECOURSE.  The Bank agrees  (i) that any claim, liability, or
obligation  arising hereunder  or under  the Note  whether on  account  of  the
principal of  any Loan,  interest thereon, or any other amount due hereunder or
thereunder  shall be  satisfied only  from the assets  of the specific Fund for
whose  benefit a Loan is borrowed  and in any event in  an amount not to exceed
the outstanding principal amount of any Loan  borrowed for such Fund's benefit,
together  with accrued  and unpaid  interest due  and owing thereon,  and  such
Fund's  share of  any  other  amount  due  hereunder and  under  the  Note  (as
determined in accordance with the provisions hereof) and (ii) that no assets of
any  Fund shall  be used to satisfy any claim, liability, or obligation arising
hereunder  or under  the Note  with respect to the outstanding principal amount
of  any Loan  borrowed for  the benefit  of any  other Fund  or any accrued and
unpaid interest due  and owing thereon or such other  Fund's share of any other
<PAGE>
amount due hereunder and under  the Note (as determined in  accordance with the
provisions hereof).

     18.  REMEDIES ON DEFAULT.  In case any one or more Events of Default shall
occur and be continuing, the Bank may proceed to protect and enforce its rights
by an  action at law,  suit in equity or other appropriate proceedings, against
the applicable Borrower(s)  and/or Fund(s), as the case may be.  In the case of
a default in  the payment of  any principal or interest  on any Loan or  in the
payment  of any fee due  hereunder, the relevant Fund(s) (to be allocated among
such Funds  as the  Borrowers deem  appropriate) shall  pay to  the  Bank  such
further  amount as  shall be  sufficient to  cover  the  cost  and  expense  of
collection,  including,  without  limitation,  reasonable  attorney's  fees and 
expenses.

     19.  NO WAIVER OF  REMEDIES.  No course of  dealing or failure or delay on
the  part of the Bank  in exercising any right or remedy hereunder or under the
Note shall  constitute a waiver  of any right or  remedy hereunder or under the
Note, nor  shall any partial exercise of any right or remedy hereunder or under
the Note preclude any further  exercise thereof or  the exercise  of any  other
right  or remedy  hereunder or  under  the  Note.   Such  rights  and  remedies
expressly  provided  are cumulative and not exclusive of any rights or remedies
which the Bank would otherwise have.

     20.  EXPENSES.   The Fund(s) (to  be  allocated among  the  Funds  as  the
Borrowers  deem appropriate)  shall pay on  demand all reasonable out-of-pocket 
costs and expenses (including reasonable attorney's fees and expenses) incurred
by  the Bank  in connection  with the  collection  and  any  other  enforcement
proceedings of or regarding this Agreement, any Loan or the Note.

     21.  BENEFIT  OF AGREEMENT.  This Agreement  and the Note shall be binding
upon  and inure  for the benefit  of  and  be  enforceable  by  the  respective
successors  and assigns  of the parties  hereto; provided that no party to this
Agreement or the  Note may assign  any of its  rights hereunder  or  thereunder
without the prior written consent of the  other parties.  The Bank may not sell
participations  and  subparticipations  in all  or any part  of the  Loans made
hereunder without  the prior consent of the Borrowers,  which consent shall not
be unreasonably withheld.

     22.  NOTICES.   All notices  hereunder  and  all  written,  facsimiled  or
telecopied  confirmations of  Oral Requests made hereunder shall be sent to the
<PAGE>
Borrowers as indicated on EXHIBIT B and  to the Bank as indicated on EXHIBIT C.
Written  communications shall  be deemed to  have been  duly given  and made as
follows:   If sent by  mail, seventy-two  (72) hours  after deposit in the mail
with  first-class  postage prepaid,  addressed as  provided in  EXHIBIT  B (the
Borrowers) and EXHIBIT C (the Bank); and in  the case of facsimile or telecopy,
when the facsimile or telecopy is received if on a business day or otherwise on
the next business day.

     23.  MODIFICATIONS.   No provision  of this Agreement  or the  Note may be
waived,  modified or  discharged except  by mutual  written  agreement  of  all
parties.   THIS  WRITTEN  LOAN  AGREEMENT  AND  THE  NOTE  REPRESENT  THE FINAL
AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS  OR  SUBSEQUENT  ORAL  AGREEMENTS OF THE PARTIES.  THERE ARE NO
UNWRITTEN AGREEMENTS BETWEEN THE PARTIES.

     24.  INCREASED  COST AND  REDUCED RETURN.  If at  any time after  the date
hereof, the  Bank (which  shall include,  for purposes  of  this  Section,  any
corporation controlling the Bank)  determines that the adoption or modification
of any  applicable law  regarding the Bank's required levels of reserves, other
than  the reserve  requirement taken  into account  when computing  the  London
Interbank  Offered Rate  as provided  in Section 3,  or capital  (including any
allocation of  capital requirements or conditions), or similar requirements, or
any  interpretation  or  administration  thereof  by  a  governmental  body  or
compliance  by the  Bank with  any of such  requirements, has or would have the
effect  of (a)  increasing the  Bank's costs  relating to  the  Loans,  or  (b)
reducing the yield or rate of return of the Bank on the Loans, to a level below
that which the Bank could have achieved but for the adoption or modification of
any  such requirements,  the Funds  (to be  allocated among  the Funds  as  the
Borrowers  deem appropriate)  shall, within fifteen (15) days of any request by
the Bank,  pay to  the Bank  such additional  amounts as  (in the  Bank's  sole
judgment, after good faith and reasonable computation) will compensate the Bank
for such increase in costs or reduction in yield or rate of return of the Bank.
Whenever  the Bank  shall seek  compensation  for  any  increase  in  costs  or
reduction  in yield  or rate of return, the Bank shall provide a certificate as
the  Borrower(s) shall  reasonably request.   Failure  by  the Bank  to  demand
payment  within 90  days of  any additional  amounts  payable  hereunder  shall
constitute  a waiver of  the Bank's right  to demand payment of such amounts at
any subsequent time.  Nothing herein contained shall be construed or so operate
as to require the
<PAGE>
Borrowers or the Funds to pay any interest, fees, costs or charges greater than
is permitted by applicable law.

     25.  GOVERNING LAW AND JURISDICTION.   This Agreement shall be governed by
and construed in accordance with the laws of the state  of Texas without regard
to the choice of law provisions thereof.

     26.  TRUST  DISCLAIMER.   Neither  the  shareholders,  trustees, officers,
employees and other agents of any Borrower or Fund shall be personally bound by
or liable for any indebtedness, liability  or obligation hereunder or under the
Note nor shall resort be had to their private property for  the satisfaction of
any obligation or claim hereunder.

If this letter  correctly reflects your agreement  with us, please execute both
copies  hereof and return one to us, whereupon this Agreement  shall be binding
upon the Borrowers, the Funds and the Bank.

Sincerely,

NATIONSBANK OF TEXAS, N.A.

By: /s/ Mary P. Riggins
    -------------------------
    Title: Vice President      

AGREED AND ACCEPTED:

USAA MUTUAL FUND, INC.,
on behalf of and for the benefit
of its series of Funds as set forth
on Schedule A to this Agreement

By: /s/ Michael J.C. Roth
    -------------------------
    Michael J.C. Roth
    President
<PAGE>
USAA INVESTMENT TRUST,
on behalf of and for the benefit
of its series of Funds as set forth
on Schedule A to this Agreement

By: /s/ Michael J.C. Roth
    -------------------------
    Michael J.C. Roth
    President

USAA TAX EXEMPT FUND, INC.,
on behalf of and for the benefit
of its series of Funds as set forth
on Schedule A to this Agreement

By: /s/ Michael J.C. Roth
    -------------------------
    Michael J.C. Roth
    President

USAA STATE TAX-FREE TRUST,
on behalf of and for the benefit
of its series of Funds as set forth
on Schedule A to this Agreement

By: /s/ Michael J.C. Roth
    -------------------------
    Michael J.C. Roth
    President
<PAGE>
                                                                     SCHEDULE A

                        FUNDS FOR WHOSE BENEFIT LOANS CAN
                       BE BORROWED UNDER FACILITY AGREEMENT
                                AND BORROWING LIMIT

                                                      MAXIMUM PERCENT OF THE
                                                      TOTAL ASSETS WHICH CAN
                                                    BE BORROWED UNDER FACILITY
BORROWER                    FUNDS                  AGREEMENT AND OTHER FACILITY
- --------                    -----                  ----------------------------

USAA Mutual Fund, Inc.      USAA Aggressive Growth              25%
                            USAA Growth & Income                25
                            USAA Income Stock                   25
                            USAA Short-Term Bond                25
                            USAA Money Market                   25
                            USAA Growth                         25
                            USAA Income                         25
                            USAA S&P 500 Index                  25
                            USAA Science & Technology           25
                            USAA First Start Growth             25

USAA Investment Trust       USAA Cornerstone Strategy           25
                            USAA Gold                           25
                            USAA International                  25
                            USAA World Growth                   25
                            USAA GNMA Trust                     25
                            USAA Treasury Money Market Trust    25
                            USAA Emerging Markets               25
                            USAA Growth and Tax Strategy        25
                            USAA Growth Strategy                25
                            USAA Income Strategy                25
                            USAA Balanced Strategy              25

USAA Tax Exempt Fund, Inc.  USAA Long-Term                      15
                            USAA Intermediate-Term              15
                            USAA Short-Term                     15
                            USAA Tax Exempt Money Market        15
                            USAA California Bond                15
                            USAA California Money Market        15
                            USAA New York Bond                  15
                            USAA New York Money Market          15
                            USAA Virginia Bond                  15
                            USAA Virginia Money Market          15

USAA State Tax-Free Trust   USAA Florida Tax-Free Income        15
                            USAA Florida Tax-Free Money Market  15
                            USAA Texas Tax-Free Income          15
                            USAA Texas Tax-Free Money Market    15
<PAGE>
                                                                      EXHIBIT A

                             MASTER GRID PROMISSORY NOTE

U.S. $100,000,000                                      Dated:  January 14, 1998

     FOR  VALUE  RECEIVED,  each of  the undersigned  (each  a  "Borrower"  and
collectively  the "Borrowers"), severally and not jointly, on behalf of and for
the benefit of  the series  of funds comprising each such Borrower as listed on
Schedule A  to the  Agreement as  defined below (each a "Fund" and collectively
the "Funds")  promises to  pay to the order  of NATIONSBANK OF TEXAS, N.A. (the
"Bank") at the Bank's office located at 901 Main Street, Dallas, Dallas County,
Texas  75202, in lawful  money of the  United States of America, in immediately
available  funds, the principal  amount of all  Loans made by  the Bank to such
Borrower for  the benefit of the  applicable Funds under the Facility Agreement
Letter dated January 14, 1998 (as amended or  modified, the "Agreement"), among
the Borrowers and the Bank, together with interest thereon at the rate or rates
set forth in the Agreement.  All payments of interest and principal outstanding
shall be made in accordance with the terms of the Agreement.

     This  Note  evidences  Loans made  pursuant  to,  and  is  entitled to the
benefits  of, the Agreement.   Terms not defined  in this Note  shall be as set
forth in the Agreement.

     The Bank is  authorized to endorse the particulars  of each Loan evidenced
hereby  on  the  attached  Schedule  and  to  attach  additional  Schedules  as
necessary,  provided  that  the  failure  of  the  Bank  to  do so  or to do so
accurately shall  not affect the  obligations of  any Borrower (or the Fund for
whose benefit it is borrowing) hereunder.

     Each  Borrower  waives  all  claims  to  presentment, demand, protest, and
notice  of  dishonor.   Each  Borrower  agrees to  pay all  reasonable costs of
collection,  including  reasonable  attorney's  fees  in  connection  with  the
enforcement of this Note.

     The Bank  hereby agrees  (i) that  any  claim,  liability,  or  obligation
arising hereunder or under the Agreement whether on account of the principal of
any  Loan, interest  thereon, or any other  amount due hereunder  or thereunder
shall be satisfied only from  the assets of the specific Fund for whose benefit
a Loan is borrowed and in any event in an amount not to exceed the  outstanding
principal  amount of any  Loan borrowed  for such Fund's benefit, together with
accrued and unpaid interest due and owing thereon, and such Fund's share of any
other amount due hereunder and under the Agreement (as determined in accordance
with the provisions of the Agreement) and (ii) that no assets of any Fund shall
be  used to  satisfy any  claim, liability,  or obligation arising hereunder or
under the  Agreement with respect  to the  outstanding principal  amount of any
Loan  borrowed for  the benefit  of any  other Fund  or any  accrued and unpaid
interest  due and owing  thereon or such other Fund's share of any other amount
due  hereunder  and under the  Agreement  (as determined in accordance with the
provisions of the Agreement).
<PAGE>
     Neither  the shareholders,  trustees, officers, employees and other agents
of  any Borrower or  Fund shall  be personally  bound  by  or  liable  for  any
indebtedness,  liability or  obligation hereunder  or under the  Note nor shall
resort be had to their private property for the satisfaction  of any obligation
or claim hereunder.

     This Note shall be governed by the laws of the state of Texas.

                                            USAA MUTUAL FUND, INC.,
                                            on behalf of and for the benefit
                                            of its series of Funds as set forth
                                            on Schedule A to the Agreement

                                            By: /s/ Michael J.C. Roth
                                                -------------------------------
                                                Michael J.C. Roth
                                                President

                                            USAA INVESTMENT TRUST,
                                            on behalf of and for the benefit
                                            of its series of Funds as set forth
                                            on Schedule A to the Agreement

                                            By: /s/ Michael J.C. Roth
                                                -------------------------------
                                                Michael J.C. Roth
                                                President

                                            USAA TAX EXEMPT FUND, INC.,
                                            on behalf of and for the benefit
                                            of its series of Funds as set forth
                                            on Schedule A to the Agreement

                                            By: /s/ Michael J.C. Roth
                                                -------------------------------
                                                Michael J.C. Roth
                                                President

                                            USAA STATE TAX-FREE TRUST,
                                            on behalf of and for the benefit
                                            of its series of Funds as set forth
                                            on Schedule A to the Agreement

                                            By: /s/ Michael J.C. Roth
                                                -------------------------------
                                                Michael J.C. Roth
                                                President
<PAGE>
                        LOANS AND PAYMENT OF PRINCIPAL

This  schedule (grid) is  attached to and  made a part  of the  Promissory Note
dated  January 14, 1998,  executed by  USAA MUTUAL FUND, INC.,  USAA INVESTMENT
TRUST,  USAA TAX EXEMPT FUND, INC.  AND USAA STATE TAX-FREE TRUST  on behalf of
and  for the  benefit of  the series  of funds  comprising each  such  Borrower
payable to the order of NATIONSBANK OF TEXAS, N.A.

[GRID}
Date of
Loan

Borrower
and Fund

Amount of
Loan

Type of Rate and
Interest Rate on Date
of Borrowing

Amount of
Principal Repaid

Date of
Repayment

Other
Expenses

Notation
made by
<PAGE>
                                                                      EXHIBIT B

                              NATIONSBANK OF TEXAS, N.A.
                                  MASTER REVOLVING
                              CREDIT FACILITY AGREEMENT
                              BORROWER INFORMATION SHEET

BORROWER:  USAA MUTUAL FUND, INC., USAA INVESTMENT TRUST, USAA
           TAX EXEMPT FUND, INC. AND USAA STATE TAX-FREE TRUST

ADDRESS FOR NOTICES AND OTHER COMMUNICATIONS TO THE BORROWER:

                         9800 Fredericksburg Road
                         San Antonio, Texas  78288 (for Federal Express, 78240)
                         Attention:  John W. Saunders, Jr.
                                     Senior Vice President,
                                     Fixed Income Investments

                         Telephone:  (210) 498-7320
                         Telecopy:   (210) 498-5689

                                     Harry W. Miller
                                     Senior Vice President,
                                     Equity Investments

                         Telephone:  (210) 498-7344
                         Telecopy:   (210) 498-7332

ADDRESS FOR BORROWING AND PAYMENTS:

                         9800 Fredericksburg Road
                         San Antonio, Texas  78288 (for Federal Express, 78240)
                         Attention:  Caryl J. Swann

                         Telephone:  (210) 498-7472
                         Telecopy:   (210) 498-0382 or 498-7819
                         Telex:      767424

INSTRUCTIONS FOR PAYMENTS TO BORROWER:

WE PAY VIA:       X      FED FUNDS                 CHIPS
                -------                     -------
<PAGE>
TO:     (PLEASE PLACE BANK NAME, CORESPONDENT NAME (IF APPLICABLE),
        CHIPS AND/OR FED FUNDS ACCOUNT NUMBER BELOW)

STATE STREET BANK AND TRUST COMPANY, BOSTON, MASSACHUSETTS

ABA #011-00-0028

USAA MUTUAL FUND, INC.
- ----------------------
USAA Aggressive Growth Fund                             Acct.# 6938-502-9
- -------------------------------------------------------------------------
USAA Growth & Income Fund                               Acct.# 6938-519-3
- -------------------------------------------------------------------------
USAA Income Stock Fund                                  Acct.# 6938-495-6
- -------------------------------------------------------------------------
USAA Short-Term Bond Fund                               Acct.# 6938-517-7
- -------------------------------------------------------------------------
USAA Money Market Fund                                  Acct.# 6938-498-0
- -------------------------------------------------------------------------
USAA Growth Fund                                        Acct.# 6938-490-7
- -------------------------------------------------------------------------
USAA Income Fund                                        Acct.# 6938-494-9
- -------------------------------------------------------------------------
USAA S&P 500 Index Fund                                 Acct.# 6938-478-2
- -------------------------------------------------------------------------
USAA Science & Technology Fund                          Acct.# 6938-515-1
- -------------------------------------------------------------------------
USAA First Start Growth Fund                            Acct.# 6938-468-3
- -------------------------------------------------------------------------

USAA INVESTMENT TRUST
- ---------------------
USAA Cornerstone Strategy Fund                          Acct.# 6938-487-3
- -------------------------------------------------------------------------
USAA Gold Fund                                          Acct.# 6938-488-1
- -------------------------------------------------------------------------
USAA International Fund                                 Acct.# 6938-497-2
- -------------------------------------------------------------------------
USAA World Growth Fund                                  Acct.# 6938-504-5
- -------------------------------------------------------------------------
USAA GNMA Trust                                         Acct.# 6938-486-5
- -------------------------------------------------------------------------
USAA Treasury Money Market Trust                        Acct.# 6938-493-1
- -------------------------------------------------------------------------
USAA Emerging Markets Fund                              Acct.# 6938-501-1
- -------------------------------------------------------------------------
USAA Growth and Tax Strategy Fund                       Acct.# 6938-509-4
- -------------------------------------------------------------------------
<PAGE>
USAA Growth Strategy Fund                               Acct.# 6938-510-2
- -------------------------------------------------------------------------
USAA Income Strategy Fund                               Acct.# 6938-508-6
- -------------------------------------------------------------------------
USAA Balanced Strategy Fund                             Acct.# 6938-507-8
- -------------------------------------------------------------------------

USAA TAX EXEMPT FUND, INC.
- --------------------------
USAA Long-Term Fund                                     Acct.# 6938-492-3
- -------------------------------------------------------------------------
USAA Intermediate-Term Fund                             Acct.# 6938-496-4
- -------------------------------------------------------------------------
USAA Short-Term Fund                                    Acct.# 6938-500-3
- -------------------------------------------------------------------------
USAA Tax Exempt Money Market Fund                       Acct.# 6938-514-4
- -------------------------------------------------------------------------
USAA California Bond Fund                               Acct.# 6938-489-9
- -------------------------------------------------------------------------
USAA California Money Market Fund                       Acct.# 6938-491-5
- -------------------------------------------------------------------------
USAA New York Bond Fund                                 Acct.# 6938-503-7
- -------------------------------------------------------------------------
USAA New York Money Market Fund                         Acct.# 6938-511-0
- -------------------------------------------------------------------------
USAA Virginia Bond Fund                                 Acct.# 6938-512-8
- -------------------------------------------------------------------------
USAA Virginia Money Market Fund                         Acct.# 6938-513-6
- -------------------------------------------------------------------------

USAA STATE TAX-FREE TRUST
- -------------------------
USAA Florida Tax-Free Income Fund                       Acct.# 6938-473-3
- -------------------------------------------------------------------------
USAA Florida Tax-Free Money Market Fund                 Acct.# 6938-467-5
- -------------------------------------------------------------------------
USAA Texas Tax-Free Income Fund                         Acct.# 6938-602-7
- -------------------------------------------------------------------------
USAA Texas Tax-Free Money Market Fund                   Acct.# 6938-601-9
- -------------------------------------------------------------------------
<PAGE>
                                                                      EXHIBIT C

                                ADDRESS FOR THE BANK

                                NationsBank of Texas, N.A.
                                901 Main Street
                                66th Floor
                                Dallas, Texas  75202

                                Attention:  Mary Pat Riggins
                                Telephone No.:  (214) 508-0585
                                Telecopy No.:  (214) 508-0604
<PAGE>
                                                                      EXHIBIT D

                                  OFFICER'S CERTIFICATE

The undersigned hereby certifies  that he is the duly elected Secretary of USAA
Mutual Fund, Inc.,  USAA Investment Trust, USAA Tax Exempt Fund,  Inc. and USAA
State  Tax-Free Trust and that  he is authorized to execute this Certificate on
behalf of  USAA Mutual Fund, Inc., USAA Investment Trust, USAA Tax Exempt Fund,
Inc. and USAA State  Tax-Free Trust.  The undersigned  hereby further certifies
to the following:

The following individuals are duly  authorized to act on behalf of  USAA Mutual
Fund, Inc.,  USAA Investment Trust,  USAA Tax Exempt Fund, Inc.  and USAA State
Tax-Free Trust, by transmitting telephonic, telex, or telecopy instructions and
other  communications with  regard to  borrowings and payments  pursuant to the
Master Revolving Credit Facility Agreement with NationsBank of Texas, N.A.  The
signature  set opposite the  name of each individual below is that individual's
genuine signature.

NAME                      OFFICE                    SIGNATURE

Michael J. C. Roth        President                 /s/ Michael J.C. Roth
                                                    ---------------------------

John W. Saunders, Jr.     Senior Vice President
                          Fixed Income Investments  /s/ John W. Saunders, Jr.
                                                    ---------------------------

Harry W. Miller           Senior Vice President
                          Equity Investments        /s/ Harry W. Miller
                                                    ---------------------------

Kenneth E. Willmann       Vice President
                          Mutual Fund Portfolios    /s/ Kenneth E. Willmann
                                                    ---------------------------

David G. Peebles          Vice President
                          Equity Investments        /s/ David G. Peebles
                                                    ---------------------------

Sherron A. Kirk           Vice President
                          Controller                /s/ Sherron A. Kirk
                                                    ---------------------------
Caryl J. Swann            Manager
                          Mutual Fund Accounting    /s/ Caryl J. Swann
                                                    ---------------------------
<PAGE>
IN WITNESS WHEREOF,  I have  executed  the Certificate  as of this  14th day of
January, 1998.
                                                    /s/ Michael D. Wagner
                                                    ---------------------------
                                                    MICHAEL D. WAGNER
                                                    Secretary

I, Michael  J. C. Roth,  President of  USAA Mutual Fund, Inc.,  USAA Investment
Trust,  USAA Tax Exempt Fund, Inc. and USAA State Tax-Free Trust hereby certify
that Michael D. Wagner is,  and has been at all times since a date prior to the
date of this Certificate,  the duly elected, qualified, and acting Secretary of
USAA Mutual Fund, Inc.,  USAA Investment Trust,  USAA Tax Exempt Fund, Inc. and
USAA State Tax-Free Trust  and that the signature  set forth above is  his true
and correct signature.

DATE:   January 14, 1998
                                                    /s/ Michael J.C. Roth
                                                    ---------------------------
                                                    MICHAEL J. C. ROTH
                                                    President
<PAGE>
                                       Subordination                  EXHIBIT E
NationsBank of Texas, N.A.             Agreement

This is an agreement among:                            Dated:  January 14, 1998

Name and Address of Lender (Including County):

NationsBank of Texas, N.A.
901 Main Street
Dallas, Dallas County, Texas  75202

  (Lender)

Name and Address of Borrower:

USAA Mutual Fund, Inc.
USAA Investment Trust
USAA Tax Exempt Fund, Inc.
USAA State Tax-Free Trust
9800 Fredericksburg Road
San Antonio, Texas   78288

  (Debtor)

Name and Address of Creditor:

USAA Capital Corporation
9800 Fredericksburg Road
San Antonio, Texas  78288

  (Creditor)

1.  Background.   Debtor is or  may be  indebted to  Lender  pursuant  to  that
    certain Facility Agreement Letter dated January 14, 1998 between Debtor and
    Lender ("Senior Facility Agreement").  Debtor also is or may be indebted to
    Creditor  pursuant to  that certain Facility Agreement Letter dated January
    13, 1998  between Debtor  and Creditor ("Subordinated Facility Agreement").
    All debt  (as hereinafter defined)  under the  Senior Facility Agreement is
    hereinafter  referred to  as "senior  debt"  and all  debt  (as hereinafter
    defined)  under the Subordinated Facility Agreement is hereinafter referred
    to as "subordinated debt".

2.  Definition of Debt.  The term "debt" as used in the terms "senior debt" and
    "subordinated debt"  means all debts,  obligations and liabilities,  now or
    hereafter  existing, direct  or indirect,  absolute or contingent, joint or
    several, secured  or unsecured,  due or not due,  contractual  or tortious,
    liquidated  or unliquidated,  arising by  operation  of law  or  otherwise,
    irrespective  of the  person in  whose favor  such debt may originally have
    been created  and regardless  of the manner  in which such debt has been or
    may  hereafter be  acquired by  Lender or Creditor, as the case may be, and
    includes  all costs incurred  to obtain,  preserve,  perfect or enforce any
    security interest, lien or mortgage, or to collect any debt or to maintain,
    preserve, collect and enforce any collateral, and interest on such amounts.

3.  Subordination  of Debt.   Until senior  debt has been paid  in full, Debtor
    will  not pay and Creditor will not accept any payment on subordinated debt
    at  any time  that an  Event of Default  (as defined in the Senior Facility
    Agreement)  has occurred  and is  continuing in  respect  of  senior  debt.
    Anything  of value  received by Creditor on account of subordinated debt in
    violation  of this  agreement  will  be  held  by  Creditor  in  trust  and
    immediately  will be  turned over  to Lender  in the  form received  to  be
    applied by Lender on senior debt.

4.  Remedies of Creditor.  Until all senior debt has been paid in full, without
    Lender's  permission,  Creditor will  not be  a  party  to  any  action  or
    proceeding  against any person  to recover subordinated debt.  Upon written
    request of Lender,  Creditor will  file any claim or proof of claim or take
    any  other  action  to  collect   subordinated   debt  in  any  bankruptcy,
    receivership, liquidation, reorganization or other proceeding for relief of
    debtors  or in  connection with  Debtor's insolvency,  or in liquidation or
    marshaling of Debtor's assets or liabilities, or in any probate proceeding,
    and if any distribution  shall be made to Creditor,  Creditor will hold the
    same in  trust for Lender  and immediately  pay  to  Lender,  in  the  form
    received  to be  applied on senior debt, all money or other assets received
    in any  such proceedings  on account of subordinated debt until senior debt
    shall  have been paid  in full.   If Creditor shall  fail to take  any such
    action  when requested by Lender,  Lender may enforce  this agreement or as
    attorney in  fact for Creditor  and Debtor may  take  any  such  action  on
    Creditor's behalf.  Creditor hereby  irrevocably appoints Lender Creditor's
    attorney in fact to take any such action that Lender might request Creditor
    to take hereunder, and to sue for, compromise, collect and receive all such
    money and other assets and take any other action in Lender's own name or in
    Creditor's  name that  Lender shall  consider advisable for enforcement and
    collection  of subordinated debt,  and to apply  any  amounts  received  on
    senior debt.

5.  Modifications.   At any  time and  from time  to time,  without  Creditor's
    consent or notice to Creditor and without liability to Creditor and without
    releasing  or impairing  any of Lender's rights  against Creditor or any of
    Creditor's obligations  hereunder,  Lender may  take  additional  or  other
    security  for senior  debt;  release,  exchange,  subordinated or  lose any
    security  for senior debt;  release any person  obligated  on senior  debt,
    modify,  amend or  waive compliance  with any  agreement relating to senior
    debt;  grant any  adjustment,  indulgence or  forbearance to, or compromise
    with,  any person  liable for  senior debt;  neglect, delay,  omit, fail or
    refuse to take or prosecute any action for collection of any senior debt or
    to  foreclose upon  any collateral  or take  or prosecute any action on any
    agreement securing any senior debt.

6.  Subordination of Liens.   Creditor subordinates  and makes inferior  to any
    security interests,  liens or mortgages  now or hereafter  securing  senior
    debt  all security interests, liens, or mortgages now or hereafter securing
    subordinated debt.   Any foreclosure  against any property  securing senior
    debt shall foreclose,  extinguish and  discharge  all  security  interests,
    liens and  mortgages securing  subordinated debt,  and any purchaser at any
    such foreclosure sale  shall take title to the property so sold free of all
    security interest, liens and mortgages securing subordinated debt.

7.  Statement of Subordination; Assignment by Creditor; Additional Instruments.
    Debtor  and Creditor  will cause  any  instrument  evidencing  or  securing
    subordinated debt to bear upon its face a statement that such instrument is
    subordinated  to senior debt  as set forth herein and will take all actions
    and  execute  all  documents  appropriate  to  carry  out  this  agreement.
    Creditor will notify  Lender not less than 10 days before any assignment of
    any subordinated debt.

8.  Assignment by Lender.  Lender's rights under this agreement may be assigned
    in connection with any assignment or transfer of any senior debt.

9.  Venue.  Debtor and Creditor agree that this agreement is performable in the
    county of Lender's address set out above.

10. Cumulative Rights; Waivers.   This  instrument is  cumulative o f all other
    rights  and securities  of the  Lender.   No waiver by  Lender of any right
    hereunder, with respect to a particular payment, shall affect or impair its
    rights in any matters thereafter occurring.

11. Successors and Assigns.  This instrument is binding upon and shall inure to
    the benefit of the heirs, executors, administrators, successors and assigns
    of each of  the parties hereto,  but Creditor  covenants  that it  will not
    assign  subordinated debt,  or any  part thereof, without making the rights
    and interests of the assignee subject  in all respects to the terms of this
    instrument.

12. Termination.   This agreement  shall terminate  upon the termination of the
    Senior Facility Agreement and repayment in full of the senior debt.

(Lender)                    (Debtor)                   (Creditor)
NationsBank of Texas, N.A.  USAA Mutual Fund, Inc.     USAA Capital Corporation
                            USAA Investment Trust
                            USAA Tax Exempt Fund, Inc.
                            USAA State Tax-Free Trust
                 
By  /s/ Mary P. Riggins     By  /s/ Michael J.C. Roth  By  /s/ Laurie B. Blank
    Its Vice President      Its President              Its Treasurer
<PAGE>

                            GOODWIN, PROCTER & HOAR
                               COUNSELLORS AT LAW
                                 EXCHANGE PLACE
                        BOSTON, MASSACHUSETTS 02109-2881

                                                      Telephone (617) 570-1000
                                                      Telecopier (617) 523-1231

                                  July 31, 1998

USAA Investment Trust
USAA Building
9800 Fredericksburg Road
San Antonio, Texas  78288

Ladies and Gentlemen:

         We hereby consent to the reference in Post-Effective  Amendment No. 26
(the  "Amendment") to the Registration  Statement (No. 2-91069) on Form N-1A of
USAA Investment  Trust (the  "Registrant"),  to (i) our opinion with respect to
the  legality of the shares of the  Registrant  representing  interests in USAA
Balanced  Strategy  Fund,  USAA Growth  Strategy Fund and USAA Income  Strategy
Fund,  which  opinion  was filed with  Post-Effective  Amendment  No. 20 to the
Registration Statement and (ii) our opinion with respect to the legality of the
shares of the Registrant representing interests in USAA Growth and Tax Strategy
Fund, USAA  Cornerstone  Strategy Fund,  USAA Emerging  Markets Fund, USAA Gold
Fund, USAA International Fund, USAA World Growth Fund, USAA GNMA Trust and USAA
Treasury  Money  Market  Trust,  which  opinion  was filed with  Post-Effective
Amendment No. 21 to the Registration Statement.

         We also hereby  consent to the reference to this firm in the Statement
of  Additional  Information  under the heading  "General  Information--Counsel"
which  forms a part of the  Amendment  and to the filing of this  consent as an
exhibit to the Amendment.

                                               Very truly yours,


                                               /S/ GOODWIN, PROCTER & HOAR LLP
                                               --------------------------------
                                               GOODWIN, PROCTER & HOAR   LLP

                                                                     Exhibit 10
The Shareholders and Board of Trustees
USAA Investment Trust

We consent to the use of our reports dated July 2, 1998, incorporated herein by
reference  and to the  references  to our firm  under the  headings  "Financial
Highlights" in the prospectuses and "Independent  Auditors" in the statement of
additional information.

                                               /s/ KPMG Peat Marwick LLP
                                               -------------------------
                                               KPMG PEAT MARWICK LLP

San Antonio, Texas
July 31,1998

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 1
   <NAME> CORNERSTONE STRATEGY FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
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<OTHER-ITEMS-ASSETS>                                 0
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<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                 1,500,258
<DIVIDEND-INCOME>                               29,318
<INTEREST-INCOME>                               22,304
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<REALIZED-GAINS-CURRENT>                        89,011
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<NUMBER-OF-SHARES-SOLD>                          7,618
<NUMBER-OF-SHARES-REDEEMED>                    (6,906)
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<ACCUMULATED-NII-PRIOR>                         11,014
<ACCUMULATED-GAINS-PRIOR>                       39,541
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<PER-SHARE-NAV-BEGIN>                            27.96
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<PER-SHARE-DISTRIBUTIONS>                       (1.90)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              29.89
<EXPENSE-RATIO>                                   1.01
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> GOLD FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
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<INVESTMENTS-AT-VALUE>                          93,430
<RECEIVABLES>                                      447
<ASSETS-OTHER>                                     116
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  93,993
<PAYABLE-FOR-SECURITIES>                           556
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          211
<TOTAL-LIABILITIES>                                767
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       162,140
<SHARES-COMMON-STOCK>                           15,871
<SHARES-COMMON-PRIOR>                           14,982
<ACCUMULATED-NII-CURRENT>                          (4)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (38,733)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      (30,177)
<NET-ASSETS>                                    93,226
<DIVIDEND-INCOME>                                  847
<INTEREST-INCOME>                                  184
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (1,449)
<NET-INVESTMENT-INCOME>                          (418)
<REALIZED-GAINS-CURRENT>                       (4,997)
<APPREC-INCREASE-CURRENT>                     (27,245)
<NET-CHANGE-FROM-OPS>                         (32,660)
<EQUALIZATION>                                       0
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</TABLE>

<TABLE> <S> <C>

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<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> INTERNATIONAL FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                          466,080
<INVESTMENTS-AT-VALUE>                         620,004
<RECEIVABLES>                                    7,939
<ASSETS-OTHER>                                   4,937
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 632,880
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<OTHER-ITEMS-LIABILITIES>                        1,166
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       456,194
<SHARES-COMMON-STOCK>                           28,649
<SHARES-COMMON-PRIOR>                           29,320
<ACCUMULATED-NII-CURRENT>                        5,032
<OVERDISTRIBUTION-NII>                               0
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<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                   628,655
<DIVIDEND-INCOME>                               10,599
<INTEREST-INCOME>                                1,282
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (6,523)
<NET-INVESTMENT-INCOME>                          5,358
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
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   <NAME> GROWTH AND TAX STRATEGY FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 5
   <NAME> GNMA TRUST
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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<PERIOD-END>                               MAY-31-1998
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<INVESTMENTS-AT-VALUE>                         476,959
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<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          711
<TOTAL-LIABILITIES>                            101,897
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       375,897
<SHARES-COMMON-STOCK>                           36,591
<SHARES-COMMON-PRIOR>                           31,034
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (11,551)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        13,182
<NET-ASSETS>                                   377,528
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               23,196
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (1,031)
<NET-INVESTMENT-INCOME>                         22,165
<REALIZED-GAINS-CURRENT>                         2,227
<APPREC-INCREASE-CURRENT>                        9,784
<NET-CHANGE-FROM-OPS>                           34,176
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (22,165)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         10,386
<NUMBER-OF-SHARES-REDEEMED>                    (6,369)
<SHARES-REINVESTED>                              1,540
<NET-CHANGE-IN-ASSETS>                          68,730
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (13,745)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              427
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  1,031
<AVERAGE-NET-ASSETS>                           341,157
<PER-SHARE-NAV-BEGIN>                             9.95
<PER-SHARE-NII>                                   0.66
<PER-SHARE-GAIN-APPREC>                           0.37
<PER-SHARE-DIVIDEND>                            (0.66)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.32
<EXPENSE-RATIO>                                   0.30
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 6
   <NAME> TREASURY MONEY MARKET TRUST
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                          105,877
<INVESTMENTS-AT-VALUE>                         105,877
<RECEIVABLES>                                      568
<ASSETS-OTHER>                                     421
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 106,866
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          187
<TOTAL-LIABILITIES>                                187
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       106,679
<SHARES-COMMON-STOCK>                          106,679
<SHARES-COMMON-PRIOR>                           88,612
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                   106,679
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                5,219
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (355)
<NET-INVESTMENT-INCOME>                          4,864
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                            4,864
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (4,864)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        104,327
<NUMBER-OF-SHARES-REDEEMED>                   (90,821)
<SHARES-REINVESTED>                              4,561
<NET-CHANGE-IN-ASSETS>                          18,067
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              119
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    373
<AVERAGE-NET-ASSETS>                            95,141
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   0.05
<PER-SHARE-GAIN-APPREC>                           0.00
<PER-SHARE-DIVIDEND>                            (0.05)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                  0.375
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 7
   <NAME> WORLD GROWTH FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                          253,394
<INVESTMENTS-AT-VALUE>                         353,891
<RECEIVABLES>                                    3,158
<ASSETS-OTHER>                                   1,508
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 358,557
<PAYABLE-FOR-SECURITIES>                         1,192
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          485
<TOTAL-LIABILITIES>                              1,677
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       245,224
<SHARES-COMMON-STOCK>                           19,435
<SHARES-COMMON-PRIOR>                           18,221
<ACCUMULATED-NII-CURRENT>                        1,828
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          9,575
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       100,253
<NET-ASSETS>                                   356,880
<DIVIDEND-INCOME>                                5,234
<INTEREST-INCOME>                                  690
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (3,787)
<NET-INVESTMENT-INCOME>                          2,137
<REALIZED-GAINS-CURRENT>                        19,946
<APPREC-INCREASE-CURRENT>                       28,006
<NET-CHANGE-FROM-OPS>                           50,089
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (1,436)
<DISTRIBUTIONS-OF-GAINS>                      (19,161)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          5,678
<NUMBER-OF-SHARES-REDEEMED>                    (5,684)
<SHARES-REINVESTED>                              1,220
<NET-CHANGE-IN-ASSETS>                          50,081
<ACCUMULATED-NII-PRIOR>                          1,048
<ACCUMULATED-GAINS-PRIOR>                        8,861
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            2,524
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  3,787
<AVERAGE-NET-ASSETS>                           334,463
<PER-SHARE-NAV-BEGIN>                            16.84
<PER-SHARE-NII>                                    .11
<PER-SHARE-GAIN-APPREC>                           2.51
<PER-SHARE-DIVIDEND>                            (0.08)
<PER-SHARE-DISTRIBUTIONS>                       (1.02)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              18.36
<EXPENSE-RATIO>                                   1.13
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 8
   <NAME> EMERGING MARKETS FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                          324,926
<INVESTMENTS-AT-VALUE>                         287,764
<RECEIVABLES>                                    6,934
<ASSETS-OTHER>                                   2,918
<OTHER-ITEMS-ASSETS>                                 3
<TOTAL-ASSETS>                                 297,619
<PAYABLE-FOR-SECURITIES>                         2,225
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          506
<TOTAL-LIABILITIES>                              2,731
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       357,902
<SHARES-COMMON-STOCK>                           32,856
<SHARES-COMMON-PRIOR>                            8,297
<ACCUMULATED-NII-CURRENT>                        2,374
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (28,127)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      (37,261)
<NET-ASSETS>                                   294,888
<DIVIDEND-INCOME>                                4,772
<INTEREST-INCOME>                                  936
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (3,410)
<NET-INVESTMENT-INCOME>                          2,298
<REALIZED-GAINS-CURRENT>                      (27,311)
<APPREC-INCREASE-CURRENT>                     (45,979)
<NET-CHANGE-FROM-OPS>                         (70,992)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          (4)
<DISTRIBUTIONS-OF-GAINS>                       (2,257)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         27,820
<NUMBER-OF-SHARES-REDEEMED>                    (3,358)
<SHARES-REINVESTED>                                 97
<NET-CHANGE-IN-ASSETS>                         199,244
<ACCUMULATED-NII-PRIOR>                           (11)
<ACCUMULATED-GAINS-PRIOR>                        1,532
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            2,598
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  3,410
<AVERAGE-NET-ASSETS>                           254,534
<PER-SHARE-NAV-BEGIN>                            11.53
<PER-SHARE-NII>                                   0.07
<PER-SHARE-GAIN-APPREC>                         (2.44)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                       (0.18)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                               8.98
<EXPENSE-RATIO>                                   1.31
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 9
   <NAME> INCOME STRATEGY FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                           35,953
<INVESTMENTS-AT-VALUE>                          38,598
<RECEIVABLES>                                      557
<ASSETS-OTHER>                                     103
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  39,258
<PAYABLE-FOR-SECURITIES>                            56
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           41
<TOTAL-LIABILITIES>                                 97
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        36,099
<SHARES-COMMON-STOCK>                            3,233
<SHARES-COMMON-PRIOR>                            1,280
<ACCUMULATED-NII-CURRENT>                          277
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            140
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         2,645
<NET-ASSETS>                                    39,161
<DIVIDEND-INCOME>                                  112
<INTEREST-INCOME>                                1,153
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (234)
<NET-INVESTMENT-INCOME>                          1,031
<REALIZED-GAINS-CURRENT>                           231
<APPREC-INCREASE-CURRENT>                        2,051
<NET-CHANGE-FROM-OPS>                            3,313
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (867)
<DISTRIBUTIONS-OF-GAINS>                          (92)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          2,233
<NUMBER-OF-SHARES-REDEEMED>                      (337)
<SHARES-REINVESTED>                                 57
<NET-CHANGE-IN-ASSETS>                          25,283
<ACCUMULATED-NII-PRIOR>                            113
<ACCUMULATED-GAINS-PRIOR>                            1
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              118
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    286
<AVERAGE-NET-ASSETS>                            23,911
<PER-SHARE-NAV-BEGIN>                            10.84
<PER-SHARE-NII>                                   0.46
<PER-SHARE-GAIN-APPREC>                           1.31
<PER-SHARE-DIVIDEND>                            (0.46)
<PER-SHARE-DISTRIBUTIONS>                       (0.04)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.11
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 10
   <NAME> BALANCED STRATEGY FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                           61,348
<INVESTMENTS-AT-VALUE>                          69,423
<RECEIVABLES>                                      919
<ASSETS-OTHER>                                      77
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  70,419
<PAYABLE-FOR-SECURITIES>                           308
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           65
<TOTAL-LIABILITIES>                                373
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        60,734
<SHARES-COMMON-STOCK>                            5,205
<SHARES-COMMON-PRIOR>                            2,857
<ACCUMULATED-NII-CURRENT>                          337
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            900
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         8,075
<NET-ASSETS>                                    70,046
<DIVIDEND-INCOME>                                  547
<INTEREST-INCOME>                                1,420
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (597)
<NET-INVESTMENT-INCOME>                          1,370
<REALIZED-GAINS-CURRENT>                         1,470
<APPREC-INCREASE-CURRENT>                        4,029
<NET-CHANGE-FROM-OPS>                            6,869
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (1,217)
<DISTRIBUTIONS-OF-GAINS>                         (949)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          3,408
<NUMBER-OF-SHARES-REDEEMED>                    (1,219)
<SHARES-REINVESTED>                                159
<NET-CHANGE-IN-ASSETS>                          35,445
<ACCUMULATED-NII-PRIOR>                            184
<ACCUMULATED-GAINS-PRIOR>                          379
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              360
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    632
<AVERAGE-NET-ASSETS>                            48,294
<PER-SHARE-NAV-BEGIN>                            12.11
<PER-SHARE-NII>                                   0.35
<PER-SHARE-GAIN-APPREC>                           1.64
<PER-SHARE-DIVIDEND>                            (0.35)
<PER-SHARE-DISTRIBUTIONS>                       (0.29)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              13.46
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000745903
<NAME> USAA INVESTMENT TRUST
<SERIES>
   <NUMBER> 11
   <NAME> GROWTH STRATEGY FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1998
<PERIOD-END>                               MAY-31-1998
<INVESTMENTS-AT-COST>                          223,920
<INVESTMENTS-AT-VALUE>                         250,040
<RECEIVABLES>                                    1,962
<ASSETS-OTHER>                                     442
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 252,444
<PAYABLE-FOR-SECURITIES>                         2,625
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          407
<TOTAL-LIABILITIES>                              3,032
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       210,001
<SHARES-COMMON-STOCK>                           17,440
<SHARES-COMMON-PRIOR>                           14,800
<ACCUMULATED-NII-CURRENT>                        1,347
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         11,971
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        26,093
<NET-ASSETS>                                   249,412
<DIVIDEND-INCOME>                                1,565
<INTEREST-INCOME>                                3,623
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (2,931)
<NET-INVESTMENT-INCOME>                          2,257
<REALIZED-GAINS-CURRENT>                        17,440
<APPREC-INCREASE-CURRENT>                        4,107
<NET-CHANGE-FROM-OPS>                           23,804
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (2,021)
<DISTRIBUTIONS-OF-GAINS>                       (3,845)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          6,653
<NUMBER-OF-SHARES-REDEEMED>                    (4,461)
<SHARES-REINVESTED>                                448
<NET-CHANGE-IN-ASSETS>                          55,491
<ACCUMULATED-NII-PRIOR>                          1,057
<ACCUMULATED-GAINS-PRIOR>                      (1,570)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            1,755
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  2,931
<AVERAGE-NET-ASSETS>                           232,231
<PER-SHARE-NAV-BEGIN>                            13.10
<PER-SHARE-NII>                                   0.13
<PER-SHARE-GAIN-APPREC>                           1.43
<PER-SHARE-DIVIDEND>                            (0.13)
<PER-SHARE-DISTRIBUTIONS>                       (0.23)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              14.30
<EXPENSE-RATIO>                                   1.25
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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