USAA INVESTMENT TRUST
497, 2000-01-03
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USAA     USAA                                   STATEMENT OF
EAGLE    INVESTMENT                             ADDITIONAL INFORMATION
LOGO     TRUST                                  October 1, 1999
                                                As Supplemented January 3, 2000

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                             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, 1999, 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,  1999,  are  included  in  the
accompanying  Annual Report to Shareholders  of that date and are  incorporated
herein by reference.

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                               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
           9   Special Risk Considerations
          10   Investment Restrictions
          12   Portfolio Transactions
          15   Description of Shares
          16   Tax Considerations
          17   Trustees and Officers of the Trust
          20   The Trust's Manager
          22   General Information
          22   Calculation of Performance Data
          24   Appendix A - Long-Term and Short-Term Debt Ratings
          26   Appendix B - Comparison of Portfolio Performance
          30   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 valued at the last quoted sales price, or the most recently
      determined closing price calculated according to local market convention,
      available  at the  time a Fund is  valued.  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 that 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. There can be no assurance, however, that the Fund
will at all  times  be able to  maintain  a  constant  $1 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.

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<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  that 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

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<PAGE>

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.

     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  a   non-governmental   employer,   an   income-producing
investment, or an account with a participating financial institution.

DIRECT DEPOSIT PROGRAM - The monthly  transfer of certain  federal  benefits to
directly  purchase  shares of a USAA mutual  fund.  Eligible  federal  benefits
include:  Social Security,  Supplemental Security Income, Veterans Compensation
and Pension,  Civil Service  Retirement  Annuity,  and Civil  Service  Survivor
Annuity.

GOVERNMENT  ALLOTMENT - The  transfer of  military  pay by the U.S.  Government
Finance Center for the purchase of USAA mutual fund shares.

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.

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<PAGE>

     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, you should not expect withdrawals to be offset
by rising income or share value gains.

     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 you  qualify for certain
types  of  retirement  programs.  For  your  convenience,  the  Manager  offers
403(b)(7)  accounts and various forms of IRAs. You may make  investments 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 money sent to you after
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 you 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.  You may
obtain detailed information about the plans 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(s) and the investment policies applicable to
each Fund.  Each  Fund's  objective(s)  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

                                       5
<PAGE>

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.  In  evaluating  a  potential  investment  in  such  a  lease
obligation,  the Manager will consider:  (1) the credit quality of the obligor;
(2) whether the underlying  property is essential to a  governmental  function;
and (3) whether the lease obligation contains covenants prohibiting the obligor
from substituting  similar property if the obligor fails to make appropriations
for the lease obligation.

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
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.  Also,  the  maturities of  mortgage-backed
securities,  some asset-backed  securities,  and securities  subject to sinking
fund arrangements are determined on a weighted average life basis, which is the
average  time  for  principal  to  be  repaid.  For  mortgage-backed  and  some
asset-backed securities, this average time is calculated by assuming a constant
prepayment  rate  (CPR) for the life of the  mortgages  or assets  backing  the
security.  The CPR for a  security  can  vary  depending  upon  the  level  and
volatility of interest  rates.  This, in turn, can affect the weighted  average
life of the security.  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.

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<PAGE>

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.

FOREIGN SECURITIES

Each Fund,  except the Growth and Tax Strategy  Fund,  GNMA, and Treasury Money
Market  Trusts,  may invest  their  assets in foreign  securities  purchased in
either foreign or U.S. markets,  including American  Depositary Receipts (ADRs)
and Global  Depositary  Receipts  (GDRs).  These  foreign  holdings may include
securities  issued  in  emerging  markets  as  well  as  securities  issued  in
established  markets.  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;   political
instability; 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.

FORWARD CURRENCY CONTRACTS

Each Fund,  except the Growth and Tax Strategy  Fund,  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 until  settlement.  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.

     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.

                                       7
<PAGE>

     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 equity
securities of REITs,  the Funds may also be subject to certain risks associated
with direct  investments in REITs. In addition,  the Income Strategy,  Balanced
Strategy, and Growth Strategy Funds may invest a portion of their assets in the
debt securities of REITs and, therefore, may be subject to certain other risks,
such as credit risk,  associated  with  investment  in the debt  securities  of
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.

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

                                       8
<PAGE>

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 LLC
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 investment-grade, 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.

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.

                                       9
<PAGE>

                            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.

 (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).

                                      10
<PAGE>

 (3)  Lend any securities or make any loan if, as a result, more than 331/3% 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.

                                      11
<PAGE>

 (7)  Purchase  or sell  commodities,  except  that  each  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 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.

     Each Fund 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
statistical  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.  These research  services may also include access to
research on third  party data  bases,  such as  historical  data on  companies,
financial statements,  earnings history and estimates,  and corporate releases;
real-time  quotes  and  financial  news;  research  on  specific  fixed  income
securities;  research on international  market news and securities;  and rating
services on companies and industries.  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

                                      12
<PAGE>

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.

     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.

     During the fiscal year ended May 31, 1999, the Funds purchased  securities
of the following regular broker-dealers (the ten largest broker-dealers through
whom the Fund purchased securities) or the parents of regular broker-dealers.

         REGULAR BROKER-DEALER                             VALUE OF SECURITIES
                                                            AS OF MAY 31,1999
     Morgan Stanley Dean Witter & Co.
         Growth and Tax Strategy                             $    1,560,000
         World Growth                                        $    3,078,000
         Income Strategy                                     $      271,000
         Balanced Strategy                                   $    1,081,000
         Growth Strategy                                     $      618,000
     Citigroup Inc.
         Growth and Tax Strategy                             $    3,495,000
         Income Strategy                                     $      272,000
         Balanced Strategy                                   $    1,060,000
     Merrill Lynch & Co.
         Income Strategy                                     $       94,000
         Balanced Strategy                                   $    1,302,000
         Growth Strategy                                     $    1,177,000

BROKERAGE COMMISSION

During the last three  fiscal  years,  the Funds paid the  following  brokerage
fees:

           FUND                    1997             1998               1999
           ----                    ----             ----               ----

 Income Strategy             $      2,820      $      7,690       $     21,501
 Growth and Tax Strategy     $     81,456      $     50,508       $     97,792
 Balanced Strategy           $     13,006      $     29,977       $     75,407
 Cornerstone Strategy        $  1,428,772      $  1,466,734       $  1,233,228
 Growth Strategy             $    230,440      $    247,249       $    160,115
 Emerging Markets            $    484,792      $  1,578,101       $  1,309,471
 Gold                        $    225,284      $    165,197       $    262,813
 International               $  1,362,389      $  1,317,048       $    970,956
 World Growth                $    558,990      $    586,870       $    502,635

                                      13
<PAGE>

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                      1997             1998               1999*
         ----                      ----             ----               -----

Income Strategy               $    454          $     802            $  4,816
Growth and Tax Strategy       $ 15,356          $   3,976            $ 29,728
Balanced Strategy             $  1,132          $   2,168            $ 12,104
Cornerstone Strategy          $ 11,878          $   6,200            $ 27,720
Growth Strategy               $ 10,580          $   8,951            $ 11,419
Emerging Markets              $    240               -                   -
World Growth                  $  2,380          $   2,800            $ 18,428

- ---------------------
   * These  amounts  are  22.4%,  30.4%,  16.1%,  2.2%,  7.1%,  -%,  and  3.7%,
respectively, of brokerage fees paid by each Fund.

For the year ended May 31, 1999, 25.9%, 26.3%, 19.4%, 4.9%, 11.7%, and 7.6%, 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  $6,208,774,  $58,950,062,
$22,575,215,  $101,176,414,  $20,736,073,  and  $39,783,928,  and  the  related
brokerage  commissions  or  underwriting   commissions  were  $5,507,  $63,060,
$20,025,  $107,285,  $23,362, and $45,127, for the Income Strategy,  Growth and
Tax Strategy,  Balanced Strategy,  Cornerstone Strategy,  Growth Strategy,  and
World Growth Funds, respectively, for the year ended May 31, 1999.

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 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                               1998             1999
        ----                               ----             ----

     Income Strategy                       7.15%           117.12%*
     Growth and Tax Strategy1             65.58%            63.42%
     Balanced Strategy                    22.18%            63.39%
     Cornerstone Strategy                 32.73%            46.27%
     Growth Strategy                      69.42%            41.65%
     Emerging Markets                     41.23%            83.84%
     Gold                                 19.62%            33.48%
     International                        42.97%            37.69%
     World Growth                         45.04%            51.19%
     GNMA Trust                           60.85%            64.93%

- -----------
  *  The turnover rate was significantly higher due to the restructuring of the
     portfolio to make the Fund more tax efficient.

  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:

                                      14
<PAGE>

                                                         YEAR ENDED MAY 31,
                                                        1998            1999
                                                      ------------------------

     Portfolio turnover                                 31.58%           -
     Purchases and sales of
       this type are as follows:

       Purchases (000)                                $68,958            -
       Sales (000)                                    $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
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

                                      15
<PAGE>

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 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 or she 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.

                                      16
<PAGE>

     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: 52

President and Chief Operating Officer of United Services Automobile Association
(USAA) (6/99-present);  Director of USAA (2/99-present); Deputy Chief Executive
Officer for Capital Management of USAA (6/98-5/99);  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.  (6/96-12/96);
Special Assistant to Chairman, 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: 58

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.

David G. Peebles 1, 2, 4
Trustee and Vice President
Age: 60

Senior  Vice  President,   Equity  Investments,   IMCO  (11/98-present);   Vice
President,  Equity  Investments,  IMCO  (2/88-11/98).  Mr.  Peebles  serves  as
Trustee/Director  and Vice President 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: 54

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.

Michael F. Reimherr 3, 4, 5
128 East Arrowhead
San Antonio, Texas 78228
Age: 53

President of Reimherr Business  Consulting  (5/95-present);  President of Twang
Candy Company (5/91-5/94). Mr. Reimherr 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: 53

Staff  Analyst,   Southwest   Research   Institute   (9/98-present);   Manager,
Statistical  Analysis Section,  Southwest Research Institute  (2/79-9/98).  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: 56

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.

Kenneth E. Willmann 1
Vice President
Age: 53

Senior Vice President,  Fixed Income Investments,  IMCO  (12/99-present);  Vice
President, Mutual Fund Portfolios,  IMCO (09/94-12/99).  Mr. Willmann serves as
Vice President of each of the remaining  Funds within the USAA Family of Funds;
Director of IMCO; and Vice President of USAA Life Investment Trust.

Michael D. Wagner 1
Secretary
Age: 51

Senior Vice President,  CAPCO General Counsel (01/99-present);  Vice President,
Corporate Counsel, USAA (1982-01/99).  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.

                                      18
<PAGE>

Alex M. Ciccone 1
Assistant Secretary
Age: 50

Vice  President,  Compliance,  IMCO  (12/94-present).  Mr.  Ciccone  serves  as
Assistant  Secretary of each of the  remaining  funds within the USAA Family of
Funds.

Mark S. Howard 1
Assistant Secretary
Age: 36

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 for USAA Life
Investment Trust; and Assistant Vice President,  Securities Counsel for various
other USAA subsidiaries and affiliates.

Sherron A. Kirk 1
Treasurer
Age: 54

Vice President, Senior Financial Officer, IMCO (8/98-present);  Vice President,
Controller,  IMCO  (10/92-8/98).  Mrs.  Kirk serves as Treasurer of each of the
remaining  funds within the USAA Family of Funds;  and Vice  President,  Senior
Financial Officer of USAA Shareholder Account Services.

Caryl Swann 1
Assistant Treasurer
Age: 51

Executive  Director,  Mutual  Fund  Analysis & Support,  IMCO  (10/98-present);
Director, Mutual Fund Portfolio Analysis & Support, IMCO (2/98-10/98); 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 and
for USAA Life Investment Trust.

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

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:  John W.
Saunders,  Jr.,  Senior Vice  President,  Fixed Income  Investments 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.

                                      19
<PAGE>

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 May 31, 1999.

       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                     $8,461                    $30,500
Howard L. Freeman, Jr.                 $8,461                    $30,500
Robert L. Mason                        $8,461                    $30,500
Michael J.C. Roth                        None (a)                   None (a)
John W. Saunders, Jr.                    None (a)                   None (a)
Richard A. Zucker                      $8,461                    $30,500

- -----------------
 (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.

 (b)  At May 31, 1999,  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  available to the public only
      through the purchase of certain variable  annuity  contracts and variable
      life insurance policies offered by 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 August 31, 1999, 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 August 31, 1999, USAA and its affiliates owned 303,025 shares (5.1%)
of the Income Strategy Fund,  24,008,365 shares (78.1%) of the Emerging Markets
Fund,  2,446,188 shares (9.7%) of the International  Fund, and no shares of the
Growth and Tax Strategy  Fund,  Balanced  Strategy Fund,  Cornerstone  Strategy
Fund,  Growth  Strategy  Fund,  Gold Fund,  World Growth  Fund,  GNMA Trust and
Treasury Money Market Trust.

     The Trust knows of no other  persons who, as of August 31,  1999,  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, a wholly owned indirect  subsidiary 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  $40  billion,  of which
approximately $27 billion were in mutual fund portfolios.

     While the officers and  employees of the Manager,  as well as those of the
Funds, may engage in personal securities  transactions,  they are restricted by
the  procedures in a Joint Code of Ethics adopted by the Manager and the Funds.
The  Joint  Code of  Ethics  was  designed  to  ensure  that the  shareholders'
interests come before the individuals who manage their Funds. It also prohibits
the portfolio managers and other investment personnel from buying securities in
an initial public offering or from profiting from the purchase

                                      21
<PAGE>

or sale of the same security within 60 calendar days.  Additionally,  the Joint
Code of Ethics requires the portfolio manager and  other employees  with access
information  about the purchase or sale of  securities  by  the Funds to obtain
approval before executing permitted personal trades.

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 (if any); 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 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, 2000, 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  Balanced  Strategy  Fund to 1.25% of the  Fund's  ANA,  until
October 1, 2000, and will reimburse the Fund for all expenses in excess of such
limitation.  After  October 1, 2000,  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                      1997               1998             1999
         ----                      ----               ----             ----

  Income Strategy              $     65,023     $     118,050     $     295,068
  Growth and Tax Strategy      $    852,055     $   1,048,344     $   1,179,802
  Balanced Strategy            $    190,093     $     360,127     $     588,256
  Cornerstone Strategy         $  8,496,435     $  10,594,219     $  10,071,779
  Growth Strategy              $    990,525     $   1,754,693     $   1,844,418
  Emerging Markets             $    600,181     $   2,598,294     $   2,408,986
  Gold                         $    996,721     $     744,517     $     672,400
  International                $  3,805,999     $   4,650,798     $   3,990,284
  World Growth                 $  1,994,809     $   2,524,040     $   2,421,173
  GNMA Trust                   $    381,390     $     427,196     $     554,601
  Treasury Money Market Trust  $    105,420     $     118,804     $     160,368

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                      1997               1998             1999
         ----                      ----               ----             ----

  Income Strategy               $  66,382        $   51,777           -
  Balanced Strategy             $  37,577        $   34,811       $   52,511
  Treasury Money Market Trust   $  15,808        $   17,721           -

                                      21
<PAGE>

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 $26 to
$28.50 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,  each Fund pays 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 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.

                        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.

                                      22
<PAGE>

     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, 1999, was 4.42%.
        Effective Yield For 7-day Period ended May 31, 1999, was 4.52%.

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, 1999,  for the Income  Strategy
Fund, Growth and Tax Strategy Fund, and GNMA Trust were 3.94%, 2.63% and 6.28%,
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,  1999,  was
3.87%.

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.

                                      23
<PAGE>

                                  Average Annual Total Returns
                                 For Periods Ended May 31, 1999
                            1           5         10         FROM
     FUND                  YEAR       YEARS      YEARS     INCEPTION*

Income Strategy            4.97%        -          -        10.14%
Growth and Tax Strategy    9.10%      12.76%     10.33%     10.66%
Balanced Strategy          7.63%        -          -        13.26%
Cornerstone Strategy      (0.74%)     11.25%     10.32%     12.09%
Growth Strategy            8.46%        -          -        14.72%
Emerging Markets          (4.63%)       -          -        (1.43%)
Gold                      (9.20%)     (9.57%)    (3.30%)    (3.14%)
International             (6.63%)      8.66%     10.05%      9.67%
World Growth               2.06%      12.04%       -        12.97%
GNMA Trust                 3.15%       7.39%       -         7.38%

- -----------
*  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.

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.

                                      24
<PAGE>

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 LLC

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.

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:

           o  Leading market positions in well-established industries.
           o  High rates of return on funds employed.
           o  Conservative  capitalization structures with moderate reliance on
              debt and ample asset protection.

                                      25
<PAGE>

           o  Broad margins in earning  coverage of fixed financial charges and
              high internal cash generation.
           o  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.

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

                                      26
<PAGE>

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 that may cover financial and investment news.

AUSTIN AMERICAN-STATESMAN, a newspaper that 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 that may cover financial news.

CONSUMER  REPORTS,  a  monthly  magazine  that  from  time to time  reports  on
companies in the mutual fund industry.

DALLAS MORNING NEWS, a newspaper that may cover financial news.

DENVER POST, a newspaper that may quote financial news.

FINANCIAL PLANNING, a monthly magazine that periodically  features companies in
the mutual fund industry.

FINANCIAL SERVICES WEEK, a weekly newspaper that covers financial news.

FINANCIAL WORLD, a monthly magazine that periodically features companies in the
mutual fund industry.

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 that may cover financial news.

HOUSTON POST, a newspaper that may cover financial news.

IBC'S  MONEYLETTER,  a biweekly  newsletter that 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,   the  national  association  of  the  American
Investment Company industry.

INVESTOR'S BUSINESS DAILY, a newspaper that 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 that 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 that 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.

                                      27
<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.
that 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 that may cover financial news.

NO LOAD FUND  INVESTOR,  a  newsletter  covering  companies  in the mutual fund
industry.

ORLANDO SENTINEL, a newspaper that may cover financial news.

PERSONAL  INVESTOR,  a monthly  magazine that 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 that may cover financial news.

SAN FRANCISCO CHRONICLE, a newspaper that may cover financial news.

SMART MONEY,  a monthly  magazine  featuring news and articles on investing and
mutual funds.

USA TODAY, a newspaper that 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  that covers
financial news.

WASHINGTON POST, a newspaper that 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 that 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 that 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" and
"U.S. Treasury & Repo."

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.

                                      28
<PAGE>

- -  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.

- - Lehman Brothers Inc. GNMA 30 Year Index is an unmanaged index of pass-through
securities with an original maturity of 30 years.

- - 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.

- - NAREIT Equity Index (National  Association of Real Estate Investment  Trusts,
Inc.) a  broad-based  listing of all  tax-qualified  REITs (only common  shares
issued by the REIT) listed on the NYSE, American Stock Exchange, and NASDAQ.

- - Philadelphia  Gold/Silver Index (XAU), an index representing nine holdings in
the gold and silver sector.

- - S&P 500 Index, a broad-based  composite  unmanaged  index that represents the
weighted  average  performance of a group of 500 widely held,  publicly  traded
stocks.

- - Shearson Lehman Hutton Bond Indices - indices of fixed-rate debt issues rated
investment grade or higher which can be found in the BOND MARKET REPORT.

     Other  sources for total  return and other  performance  data which may be
used  by a Fund  or by  those  publications  listed  previously  are  Schabaker
Investment Management and Investment Company Data, Inc. These are services that
collect and compile data on mutual fund companies.

                                      29
<PAGE>
                       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.
===============================================================================


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