LIQUID INSTITUTIONAL RESERVES
485APOS, 1999-07-02
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      As filed with the Securities and Exchange Commission on July 2, 1999


                                            1933 Act Registration No.   33-39029
                                             1940 Act Registration No. 811-06281

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-lA

               REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [ X ]

                         Pre-Effective Amendment No. __ [ ]

                      Post-Effective Amendment No. 12   [X]
                                                   --


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


                                Amendment No. 13


                          LIQUID INSTITUTIONAL RESERVES
               (Exact name of registrant as specified in charter)
                           1285 Avenue of the Americas
                            New York, New York 10019
                    (Address of principal executive offices)

             Registrant's telephone number, including area code: (212) 713-2000

                            DIANNE E. O'DONNELL, Esq.
                     Mitchell Hutchins Asset Management Inc.
                           1285 Avenue of the Americas
                            New York, New York 10019
                     (Name and address of agent for service)

                                   Copies to:
                             ELINOR W. GAMMON, ESQ.
                            BENJAMIN J. HASKIN, ESQ.
                           Kirkpatrick & Lockhart LLP
                         1800 Massachusetts Avenue, N.W.
                           Washington, D.C. 20036-1800
                            Telephone (202) 778-9000

Approximate Date of Proposed Public Offering: Effective Date of this
Post-Effective Amendment.

It is proposed that this filing will become effective:
[ ] Immediately upon filing pursuant to Rule 485(b)
[ ] On pursuant to Rule 485(b)
[ ] 60 days after filing pursuant to Rule 485(a)(1)

[X] On September 1, 1999 pursuant to Rule 485(a)(1)

[ ] 75 days after filing pursuant to Rule 485(a)(2)
[ ] On pursuant to Rule 485(a)(2)

Title of Securities Being Registered:  Shares of Beneficial Interest.


<PAGE>



LIQUID INSTITUTIONAL RESERVES

                                MONEY MARKET FUND
                           GOVERNMENT SECURITIES FUND
                            TREASURY SECURITIES FUND









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

                                   PROSPECTUS

                                SEPTEMBER 1, 1999

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

This  prospectus  offers  two  classes of shares  for each  money  market  fund.
Institutional  shares are  offered  primarily  to  institutional  investors  and
Financial   Intermediary  shares  are  offered  to  banks  and  other  financial
intermediaries for the benefit of their customers.

         ----------------------------------------------------------------
               Not FDIC insured. May lose value. No bank guarantee.
         ----------------------------------------------------------------

As with all  mutual  funds,  the  Securities  and  Exchange  Commission  has not
approved or disapproved the fund's shares or determined  whether this prospectus
is complete or accurate. To state otherwise is a crime.


<PAGE>

Liquid Institutional Reserves    Money Market Fund    Government Securities Fund
                                      Treasury Securities Fund


                                    CONTENTS

                                    THE FUNDS

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

What every investor             3    Money Market Fund
should know about               6    Government Securities Fund
the funds                       9    Treasury Securities Fund
                               12    More About Risks and Investment Strategies


                                          YOUR INVESTMENT

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

Information for                13    Managing Your Fund Account
managing your fund             13    Buying Shares
account                        14    Selling Shares
                               14    Exchanging Shares
                               15    Pricing and Valuation

                                          ADDITIONAL INFORMATION

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

Additional important           16     Management
information about              17     Dividends and Taxes
the funds                      18     Financial Highlights


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

Where to learn more                   Back Cover
about the funds


                  ----------------------------------------
                     The funds are not complete or
                     balanced investment programs.
                  ----------------------------------------

                                       2
<PAGE>


Liquid Institutional Reserves                   Money Market Fund
- ---------------------------------------------------------------------

MONEY MARKET FUND

INVESTMENT OBJECTIVE, STRATEGIES AND RISKS
- ------------------------------------------

FUND OBJECTIVE

High current income to the extent  consistent  with  preservation of capital and
the maintenance of liquidity through  investments in a diversified  portfolio of
high quality, short-term U.S. dollar-denominated money market instruments.

PRINCIPAL INVESTMENT STRATEGIES

The fund is a money  market fund and seeks to  maintain a stable  price of $1.00
per share.  The fund invests in a  diversified  portfolio of high quality  money
market instruments of governmental and private issuers.

Money market instruments are short-term debt obligations and similar securities.
They also include  longer term bonds that have  variable  interest rate or other
special  features  that give them the  financial  characteristics  of short-term
debt.

The fund may  invest in any of these  money  market  instruments.  It invests in
foreign money market instruments only if they are denominated in U.S. dollars.

PaineWebber Incorporated,  the fund's investment adviser, has appointed Mitchell
Hutchins  Asset  Management  Inc. to serve as the fund's  sub-adviser.  Mitchell
Hutchins  selects money market  instruments for the fund based on its assessment
of relative values and changes in market and economic conditions.

PRINCIPAL RISKS

An  investment  in the fund is not a bank  deposit  and is neither  insured  nor
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.  While the fund seeks to maintain the value of your  investment at $1.00
per share, it is possible to lose money by investing in the fund.

Money market  instruments  generally  have a low risk of loss,  but they are not
risk-free.  The fund is subject to credit risk,  which is that issuers may fail,
or become  less able,  to make  payments  when due.  The fund also is subject to
interest rate risk. When short-term interest rates rise, the value of the fund's
investments  generally  will  fall,  and  its  yield  will  tend  to lag  behind
prevailing rates.

More  information  about these and other risks of an  investment  in the fund is
provided below in "More About Risks and Investment  Strategies."  In particular,
see the following headings:

o        Credit Risk

o        Interest Rate Risk

o        Foreign Securities Risk

INFORMATION  ON  THE  FUND'S  RECENT  HOLDINGS  CAN  BE  FOUND  IN  ITS  CURRENT
ANNUAL/SEMI-ANNUAL  REPORTS (SEE BACK COVER FOR  INFORMATION  ON ORDERING  THOSE
REPORTS).

                                       3
<PAGE>

Liquid Institutional Reserves                   Money Market Fund
- ---------------------------------------------------------------------

PERFORMANCE
- -----------

RISK/RETURN BAR CHART AND TABLE

The  following  bar  chart  and  table  provide  information  about  the  fund's
performance  and thus give some  indication of the risks of an investment in the
fund.

The bar chart shows how the fund's performance has varied from year to year. The
bar chart shows  Institutional  shares because they have the longer  performance
history.


The table that  follows  the bar chart  shows the average  annual  returns  over
several time periods for the fund's shares.

The fund's past  performance  does not  necessarily  indicate  how the fund will
perform in the future.



MONEY MARKET FUND -TOTAL RETURN ON INSTITUTIONAL SHARES


                           [BAR CHART TO BE INSERTED]



         Calendar year total return as of June 30, 1999 ............-    %
         Best quarter during years shown:        quarter, 19        -    %
         Worst quarter during years shown:       quarter, 19        -    %



AVERAGE ANNUAL TOTAL RETURNS
as of December 31, 1998


CLASS                            INSTITUTIONAL SHARES*
(INCEPTION DATE)                        (6/3/91)
ONE YEAR
FIVE YEARS
LIFE OF CLASS

* Because no Financial  Intermediary shares were outstanding for a full calendar
year,  average  annual total  return for  Financial  Intermediary  shares is not
included in the table.



                                       4
<PAGE>

Liquid Institutional Reserves                   Money Market Fund
- ---------------------------------------------------------------------

EXPENSES AND FEE TABLES
- -----------------------

FEES AND EXPENSES  These tables  describe the fees and expenses that you may pay
if you buy and hold shares of the fund.


SHAREHOLDER TRANSACTION EXPENSES (fees paid directly from your investment)


Maximum Sales Charge (Load) Imposed on Purchases
    (as a % of offering                                           None
    price)...............................................
Maximum Contingent Deferred Sales Charge (Load)
    (as a % of offering                                           None
    price)...............................................


ANNUAL FUND OPERATING EXPENSES (expenses that are deducted from fund assets)

                                                          FINANCIAL INTERMEDIARY
                                    INSTITUTIONAL SHARES            SHARES
                                    --------------------            ------
Management                                         0.25%                   0.25%
Fees.................................
Distribution and/or Service (12b-1)                0.00%                   0.00%
Fees.................................
Other Expenses
     Shareholder Servicing                0.00%               0.25%
Fee..................................
     Miscallaneous                        0.06%               0.06%
     Expenses*.......................
                                                   0.06%                   0.06%
                                                   ----                    -----
Total Annual Fund Operating Expenses               0.31%                   0.56%
                                                   ====                    -----
Expense Reimbursement*                             0.03%                   0.03%
                                                   ----                    -----
Net Expenses*                                      0.28%                   0.53%
                                                   ====                    =====

* The fund and PaineWebber have entered into an expense reimbursement agreement.
PaineWebber  has  agreed to  reimburse  the fund to the  extent  that the fund's
expenses  through the end of the current fiscal year otherwise  would exceed the
"Net Expenses" rates for each class as shown above. The fund has agreed to repay
PaineWebber  for those  reimbursed  expenses if it can do so over the  following
three years without  causing the fund's expenses in any of those years to exceed
those "Net Expenses" rates.


EXAMPLE

This  example is intended to help you compare the cost of  investing in the fund
with the cost of investing in other mutual funds.

This example  assumes  that you invest  $10,000 in the fund for the time periods
indicated  and then redeem all of your shares at the end of those  periods.  The
example also assumes that your investment has a 5% return each year and that the
fund's operating  expenses remain the same,  except for the one year period when
the  fund's  expenses  are  lower  due  to  its  reimbursement   agreement  with
PaineWebber.  Although your actual costs may be higher or lower,  based on these
assumptions your costs would be:

                                     1 YEAR      3 YEARS     5 YEARS   10 YEARS

      INSTITUTIONAL SHARES             $29         $90         $157       $356
  FINANCIAL INTERMEDIARY SHARES         54          71          296        665


                                       5
<PAGE>


Liquid Institutional Reserves           Government Securities Fund
- ------------------------------------------------------------------------


GOVERNMENT SECURITIES FUND

INVESTMENT OBJECTIVE, STRATEGIES AND RISKS
- ------------------------------------------

FUND OBJECTIVE

High current income to the extent  consistent  with  preservation of capital and
the maintenance of liquidity through  investments in a diversified  portfolio of
high quality, short-term U.S. dollar-denominated money market instruments.

PRINCIPAL INVESTMENT STRATEGIES

The fund is a money  market fund and seeks to  maintain a stable  price of $1.00
per share.  The fund invests in a diversified  portfolio of high  quality,  U.S.
government  money market  instruments  that pay income that is exempt from state
and local income tax in the maximum number of states.

Money market instruments are short-term debt obligations and similar securities.
They also include  longer term bonds that have  variable  interest rate or other
special  features  that give them the  financial  characteristics  of short-term
debt.

PaineWebber Incorporated,  the fund's investment adviser, has appointed Mitchell
Hutchins  Asset  Management  Inc. to serve as the fund's  sub-adviser.  Mitchell
Hutchins  selects money market  instruments for the fund based on its assessment
of relative values and changes in market and economic conditions.

PRINCIPAL RISKS

An  investment  in the fund is not a bank  deposit  and is neither  insured  nor
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.  While the fund seeks to maintain the value of your  investment at $1.00
per share, it is possible to lose money by investing in the fund.

Money market  instruments  generally  have a low risk of loss,  but they are not
risk-free.  The fund is subject to credit risk,  which is that issuers may fail,
or become  less able,  to make  payments  when due.  The fund also is subject to
interest rate risk. When short-term interest rates rise, the value of the fund's
investments  generally  will  fall,  and  its  yield  will  tend  to lag  behind
prevailing rates.

More  information  about these and other risks of an  investment  in the fund is
provided below in "More About Risks and Investment  Strategies."  In particular,
see the following headings:

o        Credit Risk

o        Interest Rate Risk

INFORMATION  ON  THE  FUND'S  RECENT  HOLDINGS  CAN  BE  FOUND  IN  ITS  CURRENT
ANNUAL/SEMI-ANNUAL  REPORTS (SEE BACK COVER FOR  INFORMATION  ON ORDERING  THOSE
REPORTS).

                                       6
<PAGE>


Liquid Institutional Reserves             Government Securities Fund
- --------------------------------------------------------------------------

PERFORMANCE
- -----------

RISK/RETURN BAR CHART AND TABLE

The  following  bar  chart  and  table  provide  information  about  the  fund's
performance  and thus give some  indication of the risks of an investment in the
fund.

The bar chart shows how the fund's performance has varied from year to year. The
bar chart shows  Institutional  shares because they have the longer  performance
history.


The table that  follows  the bar chart  shows the average  annual  returns  over
several time periods for the fund's shares.

The fund's past  performance  does not  necessarily  indicate  how the fund will
perform in the future.



GOVERNMENT SECURITIES FUND - TOTAL RETURN ON INSTITUTIONAL SHARES


                           [BAR CHART TO BE INSERTED]






      Calendar year total return as of June 30, 1999            -        %
      Best quarter during years shown:        quarter, 19       -        %
      Worst quarter during years shown:       quarter, 19       -        %

AVERAGE ANNUAL TOTAL RETURNS
as of December 31, 1998


CLASS                            INSTITUTIONAL SHARES*
(INCEPTION DATE)                        (6/3/91)
ONE YEAR
FIVE YEARS
LIFE OF CLASS

* Because no Financial  Intermediary shares were outstanding for a full calendar
year,  average  annual total  return for  Financial  Intermediary  shares is not
included in the table.


                                       7
<PAGE>

Liquid Institutional Reserves             Government Securities Fund
- --------------------------------------------------------------------------

EXPENSES AND FEE TABLES
- -----------------------

FEES AND EXPENSES  These tables  describe the fees and expenses that you may pay
if you buy and hold shares of the fund.


SHAREHOLDER TRANSACTION EXPENSES (fees paid directly from your investment)


Maximum Sales Charge (Load) Imposed on Purchases
    (as a % of offering                                          None
    price)...............................................
Maximum Contingent Deferred Sales Charge (Load)
    (as a % of offering                                          None
    price)...............................................


ANNUAL FUND OPERATING EXPENSES (expenses that are deducted from fund assets)

                                                          FINANCIAL INTERMEDIARY
                                    INSTITUTIONAL SHARES            SHARES
                                    --------------------            ------
Management                                         0.25%                   0.25%
Fees.................................
Distribution and/or Service (12b-1)                0.00%                   0.00%
Fees.................................
Other Expenses
     Shareholder Servicing                0.00%               0.25%
Fee..................................
     Miscallaneous                        0.08%               0.06%
     Expenses*.......................
                                                   0.08%                   0.08%
                                                   ----                    -----
Total Annual Fund Operating Expenses               0.33%                   0.58%
                                                   ====                    -----
Expense Reimbursement*                             0.04%                   0.04%
                                                   ----                    -----
Net Expenses*                                      0.29%                   0.54%
                                                   ====                    =====


* The fund and PaineWebber have entered into an expense reimbursement agreement.
PaineWebber  has  agreed to  reimburse  the fund to the  extent  that the fund's
expenses  through the end of the current fiscal year otherwise  would exceed the
"Net Expenses" rates for each class as shown above. The fund has agreed to repay
PaineWebber  for those  reimbursed  expenses if it can do so over the  following
three years without  causing the fund's expenses in any of those years to exceed
those "Net Expenses" rates.


EXAMPLE

This  example is intended to help you compare the cost of  investing in the fund
with the cost of investing in other mutual funds.

This example  assumes  that you invest  $10,000 in the fund for the time periods
indicated  and then redeem all of your shares at the end of those  periods.  The
example also assumes that your investment has a 5% return each year and that the
fund's operating  expenses remain the same,  except for the one year period when
the  fund's  expenses  are  lower  due  to  its  reimbursement   agreement  with
PaineWebber.  Although your actual costs may be higher or lower,  based on these
assumptions your costs would be:

                                        1 YEAR     3 YEARS   5 YEARS   10 YEARS

      INSTITUTIONAL SHARES                $31         $93      $163       $368
  FINANCIAL INTERMEDIARY SHARES            55         173       302        677


                                       8

<PAGE>


Liquid Institutional Reserves                  Treasury Securities Fund
- ----------------------------------------------------------------------------

TREASURY SECURITIES FUND


INVESTMENT OBJECTIVE, STRATEGIES AND RISKS
- ------------------------------------------

FUND OBJECTIVE

High current income to the extent  consistent  with  preservation of capital and
the maintenance of liquidity through  investments in a diversified  portfolio of
high quality, short-term U.S. dollar-denominated money market investments.

PRINCIPAL INVESTMENT STRATEGIES

The fund is a money  market fund and seeks to  maintain a stable  price of $1.00
per share. The fund invests in U.S.  Treasury money market  instruments that are
supported by the full faith and credit of the United States.  These  investments
pay income that is generally exempt from state and local income tax.

Money market instruments are short-term debt obligations and similar securities.
They also include  longer term bonds that have  variable  interest rate or other
special  features  that give them the  financial  characteristics  of short-term
debt.

PaineWebber Incorporated,  the fund's investment adviser, has appointed Mitchell
Hutchins  Asset  Management  Inc. to serve as the fund's  sub-adviser.  Mitchell
Hutchins  selects money market  instruments for the fund based on its assessment
of relative values and changes in market and economic conditions.


PRINCIPAL RISKS

An  investment  in the fund is not a bank  deposit  and is neither  insured  nor
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.  While the fund seeks to maintain the value of your  investment at $1.00
per share, it is possible to lose money by investing in the fund.

Money market  instruments  generally  have a low risk of loss,  but they are not
risk-free.  The fund is subject to credit risk,  which is that issuers may fail,
or become  less able,  to make  payments  when due.  The fund also is subject to
interest rate risk. When short-term interest rates rise, the value of the fund's
investments  generally  will  fall,  and  its  yield  will  tend  to lag  behind
prevailing rates.

More  information  about these and other risks of an  investment  in the fund is
provided below in "More About Risks and Investment  Strategies."  In particular,
see the following headings:

o        Credit Risk

o        Interest Rate Risk

INFORMATION  ON  THE  FUND'S  RECENT  HOLDINGS  CAN  BE  FOUND  IN  ITS  CURRENT
ANNUAL/SEMI-ANNUAL  REPORTS (SEE BACK COVER FOR  INFORMATION  ON ORDERING  THOSE
REPORTS).


                                       9
<PAGE>

Liquid Institutional Reserves                  Treasury Securities Fund
- ----------------------------------------------------------------------------

PERFORMANCE
- -----------

RISK/RETURN BAR CHART AND TABLE

The  following  bar  chart  and  table  provide  information  about  the  fund's
performance  and thus give some  indication of the risks of an investment in the
fund.

The bar chart shows how the fund's performance has varied from year to year. The
bar chart shows  Institutional  shares because they have the longer  performance
history.

The table that  follows  the bar chart  shows the average  annual  returns  over
several time periods for the fund's shares.

The fund's past  performance  does not  necessarily  indicate  how the fund will
perform in the future.


TREASURY SECURITIES FUND - TOTAL RETURN ON INSTITUTIONAL SHARES


                           [BAR CHART TO BE INSERTED]






    Calendar year total return as of June 30, 1999            -       %
    Best quarter during years shown:         quarter, 19      -       %
    Worst quarter during years shown:       quarter, 19       -       %

AVERAGE ANNUAL TOTAL RETURNS*
as of December 31, 1998


CLASS                                     INSTITUTIONAL SHARES
(INCEPTION DATE)                                (2/14/91)
ONE YEAR
FIVE YEARS
LIFE OF CLASS

* No Financial Intermediary shares were outstanding prior to December 31, 1998.



                                       10
<PAGE>

Liquid Institutional Reserves                  Treasury Securities Fund
- ----------------------------------------------------------------------------

EXPENSES AND FEE TABLES
- -----------------------

FEES AND EXPENSES  These tables  describe the fees and expenses that you may pay
if you buy and hold shares of the fund.


SHAREHOLDER TRANSACTION EXPENSES (fees paid directly from your investment)


Maximum Sales Charge (Load) Imposed on Purchases
    (as a % of offering                                          None
    price)...............................................
Maximum Contingent Deferred Sales Charge (Load)
    (as a % of offering                                          None
    price)...............................................


ANNUAL FUND OPERATING EXPENSES (expenses that are deducted from fund assets)


                                                          FINANCIAL INTERMEDIARY
                                    INSTITUTIONAL SHARES            SHARES
                                    --------------------            ------
Management                                         0.25%                   0.25%
Fees.................................
Distribution and/or Service (12b-1)                0.00%                   0.00%
Fees.................................
Other Expenses
     Shareholder Servicing                0.00%               0.25%
Fee..................................
     Miscallaneous                        0.08%               0.06%
     Expenses*.......................
                                                   0.08%                   0.08%
                                                   ----                    -----
Total Annual Fund Operating Expenses               0.33%                   0.58%
                                                   ====                    -----
Expense Reimbursement*                             0.04%                   0.04%
                                                   ----                    -----
Net Expenses*                                      0.29%                   0.54%
                                                   ====                    =====

* The fund and PaineWebber have entered into an expense reimbursement agreement.
PaineWebber  has  agreed to  reimburse  the fund to the  extent  that the fund's
expenses  through the end of the current fiscal year otherwise  would exceed the
"Net Expenses" rates for each class as shown above. The fund has agreed to repay
PaineWebber  for those  reimbursed  expenses if it can do so over the  following
three years without  causing the fund's expenses in any of those years to exceed
those "Net Expenses" rates.


EXAMPLE

This  example is intended to help you compare the cost of  investing in the fund
with the cost of investing in other mutual funds.

This example  assumes  that you invest  $10,000 in the fund for the time periods
indicated  and then redeem all of your shares at the end of those  periods.  The
example also assumes that your investment has a 5% return each year and that the
fund's operating  expenses remain the same,  except for the one year period when
the  fund's  expenses  are  lower  due  to  its  reimbursement   agreement  with
PaineWebber.  Although your actual costs may be higher or lower,  based on these
assumptions your costs would be:



                                       11
<PAGE>

Liquid Institutional Reserves                  Treasury Securities Fund
- ----------------------------------------------------------------------------

                                      1 YEAR       3 YEARS   5 YEARS    10 YEARS

      INSTITUTIONAL SHARES              $30           $93      $163        $368
  FINANCIAL INTERMEDIARY SHARES          55           173       302         677







                                       12
<PAGE>


Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------


MORE ABOUT RISKS AND INVESTMENT STRATEGIES
- ------------------------------------------

PRINCIPAL RISKS

The main risks of investing in one or more of the funds are described below. Not
all these risks  apply to each fund.  You can find a list of the main risks that
apply  to  a  particular  fund  by  looking  under  the  "Investment  Objective,
Strategies and Risks" heading for that fund.

Other risks of investing in a fund,  along with further detail about some of the
risks  described  below,  are  discussed in the funds'  Statement of  Additional
Information  ("SAI").  Information  on how you can obtain the SAI is on the back
cover of this prospectus.

CREDIT  RISK.  Credit  risk is the  risk  that  the  issuer  of a  money  market
instrument will not make principal or interest  payments when they are due. Even
if an issuer does not default on a payment,  a money market  instrument's  value
may decline if the market believes that the issuer has become less able, or less
willing,  to make  payments  on time.  Even the  highest  quality  money  market
instruments are subject to some credit risk.

INTEREST  RATE RISK.  The value of money  market  instruments  generally  can be
expected to fall when short-term interest rates rise and to rise when short-term
interest  rates fall.  Interest rate risk is the risk that  interest  rates will
rise, so that the value of a fund's  investments will fall. Also, a fund's yield
will tend to lag behind changes in prevailing  short-term  interest rates.  This
means that a fund's  income  will tend to rise more  slowly  than  increases  in
short-term  interest  rates.  Similarly,  when  short-term  interest  rates  are
falling,  a fund's  income will tend to fall more slowly.  The value of a fund's
municipal money market  instruments also could fall due to adverse  political or
regulatory developments concerning tax exemptions for municipal securities.

FOREIGN  SECURITIES RISK. Foreign securities involve risks that normally are not
associated  with  securities of U.S.  issuers.  These include risks  relating to
political,  social and economic developments abroad and differences between U.S.
and foreign regulatory requirements and market practices.

ADDITIONAL RISKS

YEAR 2000 RISK.  The funds could be adversely  affected by problems  relating to
the inability of computer systems used by Mitchell Hutchins and the fund's other
service providers to recognize the year 2000. While year  2000-related  computer
problems could have a negative effect on the funds, Mitchell Hutchins is working
to avoid these  problems with respect to its own computer  systems and to obtain
assurances from other service providers that they are taking similar steps.

Similarly,  the issuers whose money market  instruments  are bought by the funds
and the trading  systems used by the funds could be  adversely  affected by this
issue. The ability of an issuer or trading system to respond successfully to the
issue requires both technological sophistication and diligence, and there can be
no assurance  that any steps taken will be sufficient to avoid an adverse impact
on the funds.

ADDITIONAL INVESTMENT STRATEGIES

Like all money  market  funds,  the funds are subject to  maturity,  quality and
diversification  requirements  designed to help them  maintain a stable price of
$1.00  per  share.  In  addition,  Mitchell  Hutchins  may  employ a  number  of
professional  money  management  techniques to respond to changing  economic and
money market  conditions and to shifts in fiscal and monetary  policy.  For each
fund, these techniques  include varying the composition and the weighted average
maturity  of the  portfolio  based upon  Mitchell  Hutchins'  assessment  of the
relative  values of various money market  instruments  and future  interest rate
patterns.  Mitchell  Hutchins  also  may  seek to  improve  a  fund's  yield  by
purchasing or selling  securities to take advantage of yield  disparities  among
similar or dissimilar money market instruments that regularly occur in the money
markets.

Each fund may invest to a limited extent in shares of similar money market funds
that, for Government Securities Fund and Treasury Securities Fund, have the same
tax characteristics.


                                       13

<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------

YOUR INVESTMENT

MANAGING YOUR FUND ACCOUNT
- --------------------------

BUYING SHARES
- -------------

THE FUNDS ACCEPT THE  SETTLEMENT  OF PURCHASE  ORDERS ONLY IN AVAILABLE  FEDERAL
FUNDS. FEDERAL FUNDS ARE FUNDS DEPOSITED BY A COMMERCIAL BANK IN AN ACCOUNT AT A
FEDERAL  RESERVE BANK THAT CAN BE  TRANSFERRED  TO A SIMILAR  ACCOUNT OF ANOTHER
BANK IN ONE DAY AND THUS MAY BE MADE IMMEDIATELY AVAILABLE TO A FUND THROUGH ITS
CUSTODIAN.

Each fund  offers two  separate  classes of shares --  Institutional  shares and
Financial  Intermediary  shares -- as an  economical  and  convenient  means for
institutions to invest  short-term funds that they hold for their own account or
hold or manage for others.

o    You may purchase Institutional shares if you are an institutional investor.
     PaineWebber Incorporated,  the distributor of the fund's shares may, in its
     discretion,  make  Institutional  shares  available to individuals or other
     entities.

o    You may purchase  Financial  Intermediary  shares only if you are a bank or
     other  financial  intermediary  buying the  shares for the  benefit of your
     customers.  Financial  Intermediary  shares bear special fees at the annual
     rate of 0.25% of  average  net  assets for  services  that these  financial
     intermediaries   provide  to  the   beneficial   owners  of  the  Financial
     Intermediary shares.

Unless you specify otherwise, all shares purchased will be Institutional shares.

You may buy fund  shares by  calling  the  funds'  transfer  agent,  First  Data
Investor   Services   Group,   Inc.,  at   1-888-LIR-FUND   and  speaking  to  a
representative.  You may also buy  fund  shares  by  contacting  your  Financial
Advisor at PaineWebber or its correspondent  firms, who are then responsible for
sending the order to the  transfer  agent.  The  availability  of fund shares to
customers  of  PaineWebber's  correspondent  firms  may  vary  depending  on the
arrangements between PaineWebber and those firms.

You buy  shares  at the net  asset  value  next  determined  after  receipt  and
acceptance  of your  purchase  order by the  transfer  agent,  subject to a fund
receiving  payment the same day.

Your purchase  order will be effective only if you wire payment in federal funds
on the same business day that you place your order,  and your wire must actually
be  credited  to the fund's  bank  account by a Federal  Reserve  Bank that day.
Otherwise, the order will be rejected. A business day is any day that the funds'
custodian, the funds' transfer agent and PaineWebber are open for business. Each
fund effects  orders to purchase  its shares each  business day at the net asset
value determined as of

o    2:30 p.m. (Eastern time) for Money Market Fund.

o    noon (Eastern time) for Government  Securities Fund and Treasury Securities
     Fund

The funds and  PaineWebber  reserve  the  right to  reject a  purchase  order or
suspend the offering of fund shares. PaineWebber may return without notice money
wired to a fund where the investor fails to place a corresponding share purchase
order.

 WIRE INSTRUCTIONS

Instruct your bank to transfer federal funds by wire to:

         Mitchell Hutchins Institutional Funds
         c/o The Bank of New York
         CR DDA A/C #8900337516
         FFC PW A/C # ______________
         [INSERT PAINEWEBBER ACCOUNT NAME AND ACCOUNT NUMBER]
         ABA #021000018


                                       14
<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------

PaineWebber or your bank may impose a service charge for wire transfers.

MINIMUM INVESTMENTS:

Money Market Fund and Government Securities Fund (or a combination of both):

         To open an account.............$1,000,000
         To add to an account............None

Treasury Securities Fund:





                                      14A
<PAGE>

         To open an account.............$250,000
         To add to an account............None

PaineWebber may waive these minimums.  A fund may change its minimum  investment
requirements at any time.

Financial  intermediaries  may establish  different minimums for their customers
who purchase  Financial  Intermediary  shares  through  them,  provided that the
aggregate amounts  purchased meet the above minimums.  You may obtain additional
information about these minimums from your financial intermediary.

REMOTE TRADE ENTRY

The funds may offer an electronic trade order entry (RTE) capability to eligible
institutional  investors who meet certain  conditions.  For more  information on
this  option,   contact  your  Financial   Advisor  or  the  transfer  agent  at
1-888-LIR-FUND.

SELLING SHARES
- --------------

You may sell your shares by calling the  transfer  agent at  1-888-LIR  Fund and
speaking with a representative. You also may sell your shares by contacting your
Financial  Advisor or correspondent  firm (if you previously  designated them to
give  instructions  to the  transfer  agent  on  your  behalf).  They  are  then
responsible for sending the order to the transfer  agent.  The funds accept sell
orders each business day up until

o    2:30 p.m., Eastern time, for Money Market Fund

o    noon, Eastern time, for Government  Securities Fund and Treasury Securities
     Fund.

Your sales  proceeds will be paid in federal funds wired to one or more accounts
you have designated, normally on the business day the sale order is accepted. If
you sell all the shares you own, dividends accrued for the month to date will be
paid in federal funds and wired at the same time to the bank account(s) that you
designate.

Your bank account may not receive the  proceeds in a timely  manner if a Federal
Reserve  Bank is  experiencing  delay in transfer  of funds.  Neither the funds,
PaineWebber  nor the transfer agent is responsible  for the  performance of your
bank or any of its intermediaries.

The  transfer  agent will process your orders to sell shares only if you have on
file  with  it a  properly  completed  account  application,  with  a  signature
guaranteed or other authentication acceptable to the transfer agent. The account
application requires you to designate the bank account(s) or PaineWebber account
for  wiring  sales  proceeds.  You must  submit  any  change  in the  designated
account(s)  for sale proceeds in a form  acceptable to the transfer  agent.  The
transfer  agent will not place the sales  order if the  information  you provide
does not correspond to the information on your application.

If you have  additional  questions on selling  shares,  you should  contact your
Financial Advisor or call the transfer agent at 1-888-LIR-FUND.

EXCHANGING SHARES
- -----------------

You may  exchange  shares of a fund for shares of the same class of another fund
or  Mitchell  Hutchins  LIR  Select  Money  Fund.  LIR  Select  Money Fund has a
$10,000,000  minimum for initial purchases,  including through exchanges,  and a
$100,000 minimum for subsequent  purchases.  All exchanges are based on the next
determined net asset value per share.

Exchange  orders are accepted up until noon,  Eastern  time (2:30 p.m.,  Eastern
time,  for exchanges  from Money Market Fund into  Mitchell  Hutchins LIR Select
Money Fund). Exchange orders received after these times will not be effected and
you will have to place an exchange  order  before  these times on the  following
business day if you still wish to effect an  exchange.  If you exchange all your
fund shares,  the  dividends  accrued on those shares for the month to date also
will be  invested  in the shares of the other fund into  which the  exchange  is
made.

You can place an exchange order by calling the transfer agent at  1-888-LIR-FUND
and speaking with a representative. You also can place an exchange order through
a PaineWebber  Financial Advisor or correspondent firm, whoa re then responsible
for sending the order to the transfer agent.

Exchange  transactions must meet the minimum initial investment of the new fund.
There in no minimum for  subsequent  exchanges  between fund  accounts once they
have been activated except as noted above.

                                       15
<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------


A fund may modify or terminate the exchange privilege at any time.

ADDITIONAL INFORMATION ABOUT YOUR ACCOUNT
- -----------------------------------------

FINANCIAL INTERMEDIARY SHARES.  Financial  intermediaries  purchasing or holding
shares  for  their  customer  accounts  may  charge  those  customers  for  cash
management and other services provided in connection with their accounts.  These

                                       15A
<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------

charges may include account maintenance fees,  compensating balance requirements
or fees based on account  transactions,  assets or income. The dividends payable
to the financial intermediaries' customers, who are the beneficial owners of the
shares,  will be lower than those on  Institutional  shares by the amount of the
fees paid by the fund for shareholder  services.  A customer should consider the
terms of his account with a financial intermediary before purchasing shares.

A  financial  intermediary  buying  or  selling  shares  for  its  customers  is
responsible for transmitting orders to the transfer agent in accordance with its
customer agreements and the procedures noted above.

INSTITUTIONAL  SHARES.  PaineWebber or Mitchell  Hutchins (not the fund) may pay
shareholder  servicing fees to financial  institutions  that make  Institutional
shares available to their customers. The amount of these fees will be negotiated
between PaineWebber and the financial institution.


PRICING AND VALUATION
- ---------------------

The  price  of fund  shares  is  based  on net  asset  value  and is  determined
separately for each class of shares. The net asset value is the total value of a
fund divided by the total number of shares outstanding. In determining net asset
value, each fund values its securities at their amortized cost. This method uses
a constant  amortization  to maturity of the difference  between the cost of the
instrument  to the fund and the amount due at  maturity.  Each  fund's net asset
value per share is  expected to be $1.00 per share,  although  this value is not
guaranteed.

The net asset  value per share for Money  Market Fund is  determined  twice each
Business Day at

o    noon (Eastern time) and

o    2:30 p.m. (Eastern time)

The net  asset  value  per share for  Government  Securities  Fund and  Treasury
Securities Fund is determined once each Business Day at

o    noon (Eastern time)

Your price for buying or selling shares will be the net asset value that is next
calculated after a fund accepts your order.




                                       16
<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------

MANAGEMENT
- ----------

INVESTMENT ADVISER AND SUB-ADVISER

PaineWebber  is  the  investment   adviser,   administrator  of  the  funds  and
distributor of the funds' shares.  Mitchell  Hutchins Asset  Management  Inc. is
each fund's sub-adviser and sub-administrator. PaineWebber and Mitchell Hutchins
are located at 1285 Avenue of the Americas,  New York, New York, 10019. Mitchell
Hutchins is a wholly owned asset management subsidiary of PaineWebber,  which is
wholly owned by Paine Webber Group Inc.,  a publicly  owned  financial  services
holding  company.  On July 31, 1999,  PaineWebber  or Mitchell  Hutchins was the
adviser or  sub-adviser of __ investment  companies with __ separate  portfolios
and aggregate assets of approximately $__._ billion.


ADVISORY FEES

The funds paid  advisory and  administration  fees to  PaineWebber  for the most
recent fiscal year ended April 30, 1999 at the  following  annual rates based on
average net assets.

      Money Market Fund                  0.20%

     Government Securities Fund          0.20%

     Treasury Securities Fund            0.20%

These fees reflect a waiver by  PaineWebber  of 0.05% of the 0.25% contract rate
for each fund's advisory and  administrative  fees. That fee waiver is no longer
in effect.

OTHER  INFORMATION.  Money  Market Fund will  maintain a rating from one or more
rating  agencies  that provide  ratings on money market  funds.  There can be no
assurance that the fund will maintain any particular  rating or maintain it with
a particular rating agency.



                                       17
<PAGE>

Liquid Institutional Reserves   Money Market Fund Government Securities Fund
                                       Treasury Securities Fund
- -----------------------------------------------------------------------------

DIVIDENDS AND TAXES
- -------------------

DIVIDENDS

Each fund declares dividends daily and pays them monthly.  Dividends are paid on
the last  business  day of a month or upon the sale of all the fund  shares in a
shareholder's account.

Each fund  distributes any net short-term  capital gain annually and anticipates
that any short-term capital gain distribution would be declared during the month
of December  in a given year.  A fund may make more  frequent  distributions  if
necessary to maintain its share price at $1.00.

Shares earn dividends on the day they are purchased but do not earn dividends on
the day they are sold.

Dividends  on  Financial  Intermediary  shares  of a fund  will  be  lower  than
dividends on its  Institutional  shares because of the higher  expenses borne by
Financial Intermediary shares.

You will  receive  dividends in  additional  shares of the same class unless you
elect to have the  dividends  transmitted  by  federal  funds  wire to  either a
designated  bank account or  PaineWebber  account.  You must notify the transfer
agent in  writing  in a form  acceptable  to the  transfer  agent  at least  two
business  days prior to the end of the month if you wish to change this election
for a particular monthly dividend.


TAXES

The  dividends  that you receive  from a fund  generally  are subject to federal
income tax  regardless of whether you receive them in additional  fund shares or
in cash. Shareholders not subject to tax on their income will not be required to
pay tax on amounts  distributed to them.  The funds'  dividends will not qualify
for the dividends-received deduction for corporations.

Some  states  and  localities  do not tax  dividends  that are  attributable  to
interest on U.S. Treasury securities and certain other government securities.

The funds  expect  that their  dividends  will be taxed  primarily  as  ordinary
income.  The fund  will tell you how you  should  treat  its  dividends  for tax
purposes.





                                       18
<PAGE>


Liquid Institutional Reserves               Treasury Securities Fund
- --------------------------------------------------------------------------

FINANCIAL HIGHLIGHTS
- --------------------

The following  financial  highlights  tables are intended to help you understand
the  funds'  financial  performance  for the past 5 years.  Certain  information
reflects  financial  results  for a single fund  share.  In the  tables,  "total
investment  return" represents the rate that an investor would have earned on an
investment  in the fund  (assuming  reinvestment  of all  dividends).  Financial
Intermediary  shares were not outstanding during the fiscal year ended April 30,
1999  for  Government  Securities  Fund or  Treasury  Securities  Fund  and were
outstanding for only limited periods of time prior to that fiscal year for Money
Market Fund and Government Securities Fund.

The  information in the financial  highlights has been audited by Ernst & Young,
LLP,  independent  auditors,  whose  reports,  along with the  funds'  financial
statements, are included in the funds' annual report to shareholders. The annual
report may be obtained without charge by calling  1-888-LIR-FUND.  The financial
information  for  periods  prior  to 1996 was  audited  by  another  independent
accounting firm, whose reports thereon were unqualified.




Financial Highlights to be inserted for
         Money Market Fund
         Government Securities Fund
         Treasury Securities Fund




                                       19
<PAGE>


[BACK COVER]



Ticker Symbols for Institutional Shares            Money Market Fund:      LIRXX
                                          Government Securities Fund:      LIGXX
                                            Treasury Securities Fund:      LISXX



If you want more  information  about the  funds,  the  following  documents  are
available free upon request:

ANNUAL/SEMI-ANNUAL REPORTS

Additional  information about the funds'  investments is available in the funds'
annual and semi-annual reports to shareholders.

STATEMENT OF ADDITIONAL INFORMATION (SAI)

The SAI provides more detailed information about the fund and is incorporated by
reference into this prospectus.

You may discuss  your  questions  about a fund by  contacting  your  PaineWebber
Financial Advisor.  You may obtain free copies of annual and semi-annual reports
and the SAI by contacting the funds directly at 1-800-LIR-FUND.

You may  review and copy  information  about the  funds,  including  shareholder
reports and the SAI, at the Public Reference Room of the Securities and Exchange
Commission.  You can get text-only copies of reports and other information about
the funds:

o        For a fee, by writing to or calling the SEC's Public Reference Room,
         Washington, D.C.  20549-6009
         Telephone: 1-800-SEC-0330

o        Free, from the SEC's Internet website at: http://www.sec.gov





Liquid Institutional Reserves
- -- Money Market Fund
- -- Government Securities Fund
- -- Treasury Securities Fund
Investment Company Act File No. 811-06281


(COPYRIGHT) 1999 PaineWebber Incorporated




<PAGE>


                          LIQUID INSTITUTIONAL RESERVES
                                MONEY MARKET FUND
                           GOVERNMENT SECURITIES FUND
                            TREASURY SECURITIES FUND

                           1285 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10019

                       STATEMENT OF ADDITIONAL INFORMATION

      Money Market Fund, Government Securities Fund and Treasury Securities Fund
are professionally managed money market funds organized as diversified series of
Liquid Institutional Reserves ("Trust").

      The  funds'   investment   adviser,   administrator   and  distributor  is
PaineWebber Incorporated ("PaineWebber"); their sub-adviser is Mitchell Hutchins
Asset  Management Inc.  ("Mitchell  Hutchins"),  a wholly owned asset management
subsidiary  of  PaineWebber.   Mitchell  Hutchins  also  serves  as  the  funds'
sub-administrator.

      Portions of the funds' Annual Report to Shareholders  are  incorporated by
reference  into this  Statement of Additional  Information  ("SAI").  The Annual
Report  accompanies  this SAI. You may obtain an  additional  copy of the funds'
Annual Report by calling toll-free 1-888-LIR-FUND.

      This SAI is not a prospectus and should be read only in  conjunction  with
the fund's current Prospectus, dated September 1, 1999. A copy of the Prospectus
may be obtained by calling any PaineWebber  Financial  Advisor or  correspondent
firm or by calling  toll-free  1-888-LIR-FUND.  This SAI is dated  September  1,
1999.



                         TABLE OF CONTENTS
                                                              PAGE

        The Funds and Their Investment Policies.........        2
        The Funds' Investments, Related Risks and               3
        Limitations.....................................
        Organization of the Trust; Trustees and Officers
           and Principal Holders of Securities..........        9
        Investment Advisory, Administration
         and Distribution Arrangements..................       16
        Portfolio Transactions..........................       19
        Additional Information Regarding Redemptions....       20
        Valuation of Shares.............................       20
        Performance Information.........................       21
        Taxes...........................................       24
        Other Information...............................       25
        Financial Statements............................       25



<PAGE>

                     THE FUNDS AND THEIR INVESTMENT POLICIES

      No  fund's  investment   objective  may  be  changed  without  shareholder
approval.  Except where noted, the other investment policies of each fund may be
changed by its board without shareholder  approval.  As with other mutual funds,
there is no assurance  that a fund will achieve its investment  objective.  Each
fund  is a  money  market  fund  that  invests  in  high  quality  money  market
instruments that have, or are deemed to have,  remaining maturities of 13 months
or less and maintains a dollar-weighted average portfolio maturity of 90 days or
less.  Money market  instruments  are  short-term  debt-obligations  and similar
securities. They also include longer term bonds that have variable interest rate
or other  special  features  that give  them the  financial  characteristics  of
short-term  debt.  Each fund may purchase only those  obligations  that Mitchell
Hutchins  determines,  pursuant  to  procedures  adopted by the  board,  present
minimal  credit  risks and are "First Tier  Securities"  as defined in Rule 2a-7
under the Investment Company Act of 1940, as amended ("Investment Company Act").

      MONEY MARKET  FUND'S  investment  objective is high current  income to the
extent  consistent with preservation of capital and the maintenance of liquidity
through investments in a diversified portfolio of high quality,  short-term U.S.
dollar-denominated money market instruments.  The fund's investments include (1)
U.S. and foreign  government  securities,  (2)  obligations  of U.S. and foreign
banks, (3) commercial paper and other short-term obligations of U.S. and foreign
corporations,   partnerships,   trusts  and  similar  entities,  (4)  repurchase
agreements regarding any of the foregoing and (5) investment company securities.

      The fund may invest in  obligations  (including  certificates  of deposit,
bankers' acceptances, time deposits and similar obligations) of U.S. and foreign
banks only if the institution has total assets at the time of purchase in excess
of $1.5  billion.  The fund may invest in  non-negotiable  time deposits of U.S.
banks,  savings  associations and similar  depository  institutions  only if the
institution  has total  assets at the time of purchase in excess of $1.5 billion
and the time deposits have a maturity of seven days or less.

      The fund  generally  may invest no more than 5% of its total assets in the
securities of a single issuer (other than U.S. government securities).  The fund
may purchase only U.S. dollar-denominated obligations of foreign issuers.

      The fund may  invest up to 10% of its net assets in  illiquid  securities.
The fund may purchase securities on a when-issued or delayed delivery basis. The
fund  may  lend  its  portfolio   securities  to  qualified   broker-dealers  or
institutional investors in an amount up to 33-1/3% of its total assets. The fund
may borrow up to 33 1/3% of the value of its total  assets[,  including  reverse
repurchase  agreements,]  for  temporary  purposes  The fund may  invest  in the
securities of other money market funds.

      GOVERNMENT  SECURITIES FUND'S investment  objective is high current income
to the extent  consistent  with  preservation  of capital and the maintenance of
liquidity  through  investments  in a  diversified  portfolio  of high  quality,
short-term U.S. dollar-denominated money market instruments. The fund invests in
U.S.  government  securities with interest income that is generally  exempt from
state  and local  income  taxation  and  intends  to  emphasize  investments  in
securities  eligible  for  this  exemption  in the  maximum  number  of  states.
Securities  generally  eligible for this  exemption  include those issued by the
U.S.   Treasury  and  those   issued  by  certain   agencies,   authorities   or
instrumentalities of the U.S. government, including the Federal Home Loan Banks,
Federal Farm Credit Banks Funding Corp. and SLM Holding Corp. (formerly known as
the Student Loan Marketing Association). The fund will not enter into repurchase
agreements.

      Under extraordinary  circumstances,  however, such as when securities with
interest  income that is generally  exempt from state and local income  taxation
are unavailable at prices deemed reasonable by Mitchell  Hutchins,  the fund may
temporarily  hold cash or invest in other U.S.  government  securities,  such as
securities issued by Ginnie Mae, also known as the Government  National Mortgage
Association,  and  Freddie  Mac,  also known as the Federal  Home Loan  Mortgage
Corporation, and the Small Business Administration.



                                       2
<PAGE>

      The fund may  invest up to 10% of its net assets in  illiquid  securities.
The fund may purchase securities on a when-issued or delayed delivery basis. The
fund  may  lend  its  portfolio   securities  to  qualified   broker-dealers  or
institutional investors in an amount up to 33-1/3% of its total assets. The fund
may  borrow  up to 33  1/3% of the  value  of its  total  assets  for  temporary
purposes. The fund may invest in investment company securities .

      TREASURY SECURITIES FUND'S investment  objective is high current income to
the extent  consistent  with  preservation  of capital  and the  maintenance  of
liquidity  through  investments  in a  diversified  portfolio  of high  quality,
short-term U.S.  dollar-denominated  money market instruments.  The fund invests
exclusively in securities  issued by the U.S.  Treasury,  which are supported by
the full faith and credit of the United  States.  The  interest  income on these
securities is generally exempt from state and local income tax.
The fund will not enter into repurchase agreements.

      The fund may  invest up to 10% of its net assets in  illiquid  securities.
The fund may purchase securities on a when-issued or delayed delivery basis. The
fund  may  lend  its  portfolio   securities  to  qualified   broker-dealers  or
institutional investors in an amount up to 33-1/3% of its total assets. The fund
may  borrow  up to 33  1/3% of the  value  of its  total  assets  for  temporary
purposes. The fund may invest in investment company securities .

              THE FUNDS' INVESTMENTS, RELATED RISKS AND LIMITATIONS

      The following  supplements the information contained in the Prospectus and
above concerning each fund's investments,  related risks and limitations. Except
as otherwise  indicated in the Prospectus or the SAI, the funds have established
no policy  limitations  on its  ability  to use the  investments  or  techniques
discussed in these documents.  New forms of money market instruments continue to
be developed. The funds may invest in these instruments to the extent consistent
with their investment objectives.

      YIELDS  AND  CREDIT  RATINGS  OF  MONEY  MARKET  INSTRUMENTS;  FIRST  TIER
SECURITIES. The yields on the money market instruments in which the funds invest
are  dependent  on  a  variety  of  factors,   including  general  money  market
conditions,  conditions  in  the  particular  market  for  the  obligation,  the
financial condition of the issuer, the size of the offering, the maturity of the
obligation  and the  ratings of the issue.  The ratings  assigned by  nationally
recognized  statistical rating organizations ("rating agencies") represent their
opinions as to the quality of the obligations  they undertake to rate.  Ratings,
however,  are general and are not absolute  standards of quality.  Consequently,
obligations with the same rating,  maturity and interest rate may have different
market prices.

      Subsequent  to its  purchase by a fund,  an issue may cease to be rated or
its rating may be reduced.  If a security in a fund's  portfolio  ceases to be a
First Tier  Security  or Mitchell  Hutchins  becomes  aware that a security  has
received a rating below the second highest rating by any rating agency, Mitchell
Hutchins and, in certain  cases,  a fund's board,  will consider  whether a fund
should  continue  to hold the  obligation.  A First Tier  Security is either (1)
rated in the highest short-term rating category by at least two rating agencies,
(2) rated in the highest short-term rating category by a single rating agency if
only that rating  agency has assigned the  obligation a short-term  rating,  (3)
issued by an issuer that has received such a short-term rating with respect to a
security that is comparable in priority and security, (4) subject to a guarantee
rated in the highest  short-term  rating  category or issued by a guarantor that
has received the highest  short-term  rating for a comparable debt obligation or
(5) unrated,  but determined by Mitchell Hutchins to be of comparable quality. A
First Tier  Security  rated in the  highest  short-term  category at the time of
purchase that  subsequently  receives a rating below the highest rating category
from a  different  rating  agency may  continue  to be  considered  a First Tier
Security.

      U.S. GOVERNMENT SECURITIES include direct obligations of the U.S. Treasury
(such as Treasury bills, notes or bonds) and obligations issued or guaranteed as
to principal and interest  (but not as to market value) by the U.S.  government,
its  agencies  or its  instrumentalities.  U.S.  government  securities  include
mortgage-backed  securities  issued or  guaranteed  by  government  agencies  or
government-sponsored enterprises. Other U.S. government securities may be backed
by the full faith and credit of the U.S.  government  or supported  primarily or
solely by the creditworthiness of the government-related  issuer or, in the case
of mortgage-backed securities, by pools of assets.



                                       3
<PAGE>

      U.S.  government  securities also include  separately traded principal and
interest  components  of securities  issued or guaranteed by the U.S.  Treasury,
which are traded independently under the Separate Trading of Registered Interest
and Principal of Securities ("STRIPS") program.  Under the STRIPS programs,  the
principal  and interest  components  are  individually  numbered and  separately
issued by the U.S. Treasury.

      COMMERCIAL PAPER AND OTHER SHORT-TERM  OBLIGATIONS.  Money Market Fund may
purchase  commercial  paper,  which includes  short-term  obligations  issued by
corporations,  partnerships,  trusts or other  entities  to  finance  short-term
credit  needs.  The fund  also may  purchase  non-convertible  debt  obligations
subject  to  maturity  constraints  imposed  by Rule 2a-7  under the  Investment
Company Act.

      ASSET-BACKED SECURITIES. [Money Market Fund] may invest in securities that
are comprised of financial  assets.  Such assets may include a motor vehicle and
other types of installment sales contracts, home equity loans, leases of various
types of real and  personal  property  and  receivables  from  revolving  credit
(credit  card)  agreements or other types of financial  assets.  Such assets are
securitized  through the use of trusts or special purpose  corporations or other
entities.  Payments or distributions of principal and interest may be guaranteed
up to a certain  amount and for a certain  time  period by a letter of credit or
pool insurance policy issued by a financial  institution  unaffiliated  with the
issuer,  or  other  credit   enhancements  may  be  present.   See  "The  Funds'
Investments,   Related   Risks  and   Limitations   --  Credit   and   Liquidity
Enhancements."

      VARIABLE AND FLOATING RATE SECURITIES AND DEMAND INSTRUMENTS. Money Market
Fund and  Government  Securities  Fund may purchase  variable and floating  rate
securities  with  remaining  maturities  in excess  of 13 months  issued by U.S.
government agencies or  instrumentalities  or guaranteed by the U.S. government.
In addition,  the funds may purchase  variable and floating  rate  securities of
other issuers with remaining maturities in excess of 13 months if the securities
are subject to a demand feature exercisable within 13 months or less. The yields
on these securities are adjusted in relation to changes in specific rates,  such
as the prime rate, and different securities may have different adjustment rates.
The  funds'   investments  in  these  securities  must  comply  with  conditions
established by the Securities and Exchange  Commission  ("SEC") under which they
may be considered to have remaining  maturities of 13 months or less. Certain of
these  obligations  carry a demand  feature  that  gives  the funds the right to
tender  them back to a  specified  party,  usually  the issuer or a  remarketing
agent,  prior to  maturity.  See "The  Funds'  Investments,  Related  Risks  and
Limitations -- Credit and Liquidity Enhancements."

      Generally, each fund may exercise demand features (1) upon a default under
the  terms  of  the  underlying  security,  (2) to  maintain  its  portfolio  in
accordance  with its  investment  objective and policies or applicable  legal or
regulatory  requirements  or (3) as needed to provide  liquidity  to the fund in
order to meet  redemption  requests.  The  ability of a bank or other  financial
institution to fulfill its  obligations  under a letter of credit,  guarantee or
other liquidity arrangement might be affected by possible financial difficulties
of its  borrowers,  adverse  interest  rate or economic  conditions,  regulatory
limitations  or other  factors.  The interest  rate on floating rate or variable
rate  securities  ordinarily is readjusted on the basis of the prime rate of the
bank that  originated the financing or some other index or published  rate, such
as the 90-day U.S.  Treasury bill rate, or is otherwise  reset to reflect market
rates of interest.  Generally,  these interest rate adjustments cause the market
value of floating rate and variable rate  securities to fluctuate  less than the
market value of fixed rate securities.

      VARIABLE  AMOUNT  MASTER  DEMAND  NOTES.  Money  Market Fund may invest in
variable amount master demand notes, which are unsecured redeemable  obligations
that permit investment of varying amounts at fluctuating  interest rates under a
direct agreement  between the fund and an issuer.  The principal amount of these
notes may be  increased  from time to time by the parties  (subject to specified
maximums)  or  decreased  by the fund or the issuer.  These notes are payable on
demand and may or may not be rated.

      INVESTING IN FOREIGN  SECURITIES.  Money Market Fund's investments in U.S.
dollar-denominated  securities  of foreign  issuers may  involve  risks that are
different  from  investments  in U.S.  issuers.  These risks may include  future
unfavorable  political and economic  developments,  possible  withholding taxes,
seizure of foreign deposits,  currency controls,  interest  limitations or other
governmental restrictions that might affect the payment of principal or interest
on the fund's  investments.  Additionally,  there may be less publicly available
information  about foreign  issuers  because they may not be subject to the same
regulatory requirements as domestic issuers.



                                       4
<PAGE>

      CREDIT  AND  LIQUIDITY  ENHANCEMENTS.  [Money  Market  Fund] may invest in
securities  that have credit or liquidity  enhancements or the fund may purchase
these types of enhancements in the secondary  market.  Such  enhancements may be
structured  as demand  features  that permit the fund to sell the  instrument at
designated  times and prices.  These credit and  liquidity  enhancements  may be
backed by  letters  of credit or other  instruments  provided  by banks or other
financial  institutions  whose credit standing affects the credit quality of the
underlying obligation. Changes in the credit quality of these could cause losses
to the fund and affect its share price.  The credit and  liquidity  enhancements
may have conditions that limit the ability of the fund to use them when the fund
wished to do so.

      ILLIQUID  SECURITIES.  The term "illiquid  securities" for purposes of the
Prospectus and SAI means securities that cannot be disposed of within seven days
in the ordinary  course of business at  approximately  the amount at. to which a
fund has valued the  securities  and includes,  among other  things,  repurchase
agreements maturing in more than seven days and restricted securities other than
those  Mitchell  Hutchins  has  determined  are liquid  pursuant  to  guidelines
established  by the funds'  board.  To the extent the funds  invest in  illiquid
securities,  they may not be able readily to liquidate such  investments and may
have  to sell  other  investments  if  necessary  to  raise  cash  to  meet  its
obligations.

      Restricted securities are not registered under the Securities Act of 1933,
as amended  ("Securities  Act") and may be sold only in privately  negotiated or
other  exempted  transactions  or  after  a  registration  statement  under  the
Securities Act has become effective.  Where registration is required, a fund may
be obligated to pay all or part of the registration  expenses and a considerable
period may elapse  between the time of the  decision to sell and the time a fund
may be permitted to sell a security under an effective  registration  statement.
If, during such a period,  adverse  market  conditions  were to develop,  a fund
might obtain a less favorable price than prevailed when it decided to sell.

      However, not all restricted securities are illiquid. A large institutional
market  has  developed  for  many  U.S.  and  foreign  securities  that  are not
registered under the Securities Act. Institutional  investors generally will not
seek to sell these  instruments  to the general  public,  but instead will often
depend either on an efficient  institutional  market in which such  unregistered
securities can be readily resold or on an issuer's ability to honor a demand for
repayment.  Therefore, the fact that there are contractual or legal restrictions
on resale to the general public or certain  institutions  is not  dispositive of
the liquidity of such investments.

      Institutional  markets for restricted  securities also have developed as a
result of Rule 144A,  which  establishes a "safe  harbor" from the  registration
requirements  of the  Securities  Act  for  resales  of  certain  securities  to
qualified  institutional  buyers. Such markets include automated systems for the
trading,  clearance and  settlement of  unregistered  securities of domestic and
foreign issuers, such as the PORTAL System sponsored by the National Association
of Securities Dealers,  Inc. An insufficient  number of qualified  institutional
buyers interested in purchasing Rule 144A-eligible restricted securities held by
a fund,  however,  could affect  adversely the  marketability  of such portfolio
securities,  and the fund might be unable to dispose of such securities promptly
or at favorable prices.

      The board has delegated the function of making  day-to-day  determinations
of liquidity to Mitchell Hutchins pursuant to guidelines  approved by the board.
Mitchell  Hutchins takes into account a number of factors in reaching  liquidity
decisions,  which may include (1) the frequency of trades for the security,  (2)
the number of dealers that make quotes, or are expected to make quotes,  for the
security,  (3) the nature of the security and how trading is effected (e.g., the
time needed to sell the  security,  how bids are  solicited and the mechanics of
transfer)  and (4)  the  existence  of  demand  features  or  similar  liquidity
enhancements.  Mitchell Hutchins monitors the liquidity of restricted securities
in each fund's  portfolio  and reports  periodically  on such  decisions  to the
board.

      REPURCHASE  AGREEMENTS.  Repurchase  agreements are  transactions in which
Money  Market Fund  purchases  securities  or other  obligations  from a bank or
securities dealer (or its affiliate) and  simultaneously  commits to resell them
to the  counterparty  at an  agreed-upon  date  or  upon  demand  and at a price
reflecting a market rate of interest unrelated to the coupon rate or maturity of
the purchased obligations. Securities or other obligations subject to repurchase
agreements  may have  maturities  in excess  of 13  months.  The fund  maintains
custody of the underlying obligations prior to their repurchase,  either through
its  regular   custodian   or  through  a  special   "tri-party"   custodian  or


                                       5
<PAGE>

sub-custodian  that  maintains  separate  accounts  for  both  the  fund and its
counterparty.  Thus,  the obligation of the  counterparty  to pay the repurchase
price on the date  agreed to or upon  demand  is,  in  effect,  secured  by such
obligations.  Repurchase  agreements  carry  certain risks not  associated  with
direct  investments  in securities,  including a possible  decline in the market
value of the  underlying  obligations.  If their  value  becomes  less  than the
repurchase price, plus any agreed-upon  additional amount, the counterparty must
provide  additional  collateral so that at all times the  collateral is at least
equal to the  repurchase  price  plus any  agreed-upon  additional  amount.  The
difference  between  the total  amount to be  received  upon  repurchase  of the
obligations and the price that was paid by the fund upon  acquisition is accrued
as interest and included in its net  investment  income.  Repurchase  agreements
involving  obligations other than U.S. government securities (such as commercial
paper and corporate  bonds) may be subject to special risks and may not have the
benefit of certain protections in the event of the counterparty's insolvency. If
the seller or guarantor becomes insolvent, the fund may suffer delays, costs and
possible  losses in connection  with the  disposition  of  collateral.  The fund
intends  to  enter  into  repurchase  agreements  only  with  counterparties  in
transactions believed by Mitchell Hutchins to present minimum credit risks.

      REVERSE REPURCHASE  AGREEMENTS.  Reverse repurchase agreements involve the
sale of  securities  held by Money  Market  Fund  subject  to its  agreement  to
repurchase the  securities at an agreed-upon  date or upon demand and at a price
reflecting a market rate of interest.  Reverse repurchase agreements are subject
to the fund's  limitation on borrowings  and may be entered into only with banks
and securities dealers. While a reverse repurchase agreement is outstanding, the
fund will maintain,  in a segregated account with its custodian,  cash or liquid
securities,  marked  to  market  daily,  in an  amount  at  least  equal  to its
obligations under the reverse repurchase agreement.  See "The Funds' Investments
and Related Risks-- Segregated Accounts."

      Reverse  repurchase  agreements  involve  the risk  that the  buyer of the
securities  sold by the fund might be unable to deliver them when the fund seeks
to repurchase.  If the buyer of securities under a reverse repurchase  agreement
files for bankruptcy or becomes insolvent, such buyer or trustee or receiver may
receive  an  extension  of time to  determine  whether  to  enforce  the  fund's
obligation to repurchase the  securities,  and the fund's use of the proceeds of
the reverse  repurchase  agreement may  effectively  be restricted  pending such
decision.

      WHEN-ISSUED  AND  DELAYED  DELIVERY  SECURITIES.  The funds  may  purchase
securities  on a  "when-issued"  basis or may  purchase or sell  securities  for
delayed  delivery,  I.E., for issuance or delivery to or by the funds later than
the normal  settlement  date for such  securities at a stated price and yield. A
fund generally  would not pay for such  securities or start earning  interest on
them until they are received.  However,  when a fund undertakes a when-issued or
delayed  delivery  obligation,  it  immediately  assumes the risks of ownership,
including  the risks of price  fluctuation.  Failure  of the issuer to deliver a
security  purchased by a funds on a when-issued  or delayed  delivery  basis may
result in the  fund's  incurring  a loss or missing  an  opportunity  to make an
alternative investment.

      A  security  purchased  on a  when-issued  or  delayed  delivery  basis is
recorded as an asset on the commitment  date and is subject to changes in market
value,  generally  based upon  changes  in the level of  interest  rates.  Thus,
fluctuation  in the value of the security from the time of the  commitment  date
will affect a fund's net asset value. When a fund commits to purchase securities
on a when-issued or delayed delivery basis, its custodian  segregates  assets to
cover the amount of the commitment.  See "The Funds' Investments,  Related Risks
and Limitations--Segregated  Accounts." A fund may sell the right to acquire the
security prior to delivery if Mitchell  Hutchins deems it advantageous to do so,
which may result in a gain or loss to the fund.

      INVESTMENTS  IN  OTHER  INVESTMENT  COMPANIES.  Each  fund may  invest  in
securities  of other  money  market  funds,  subject to  Investment  Company Act
limitations,  which at present restrict these investments in the aggregate to no
more than 10% of the fund's total assets. The shares of other money market funds
are subject to the  management  fees and other  expenses of those funds.  At the
same time,  a fund would  continue to pay its own  management  fees and expenses
with  respect to all its  investments,  including  shares of other money  market
funds.  A fund may invest in the  securities  of other money  market  funds when
Mitchell  Hutchins believes that (1) the amounts to be invested are too small or
are  available  too late in the day to be  effectively  invested  in other money
market  instruments,  (2) shares of other money  market  funds  otherwise  would
provide a better return than direct investment in other money market instruments
or (3) such investments would enhance the fund's liquidity.



                                       6
<PAGE>

      LENDING  OF  PORTFOLIO  SECURITIES.  Each fund is  authorized  to lend its
portfolio securities to broker-dealers or institutional  investors that Mitchell
Hutchins deems qualified.  Lending  securities enables a fund to earn additional
income, but could result in a loss or delay in recovering these securities.  The
borrower of a fund's portfolios  securities must maintain acceptable  collateral
with the fund's  custodian in an amount,  marked to market daily, at least equal
to the  market  value  of the  securities  loaned,  plus  accrued  interest  and
dividends.  Acceptable collateral is limited to cash, U.S. government securities
and irrevocable  letters of credit that meet certain  guidelines  established by
Mitchell  Hutchins.  A fund may  reinvest  any cash  collateral  in money market
investments or other short-term liquid  investments.  In determining  whether to
lend  securities  to  a  particular  broker-dealer  or  institutional  investor,
Mitchell Hutchins will consider, and during the period of the loan will monitor,
all relevant  facts and  circumstances,  including the  creditworthiness  of the
borrower.  Each fund will retain  authority to terminate any of its loans at any
time. A fund may pay reasonable  fees in connection  with a loan and may pay the
borrower or placing  broker a negotiated  portion of the interest  earned on the
reinvestment of cash held as collateral.  A fund will receive amounts equivalent
to any interest, dividends or other distributions on the securities loaned. Each
fund will regain record  ownership of loaned  securities to exercise  beneficial
rights,  such as voting and subscription  rights,  when regaining such rights is
considered to be in its interest.

      Pursuant  to  procedures  adopted  by  the  board  governing  each  fund's
securities  lending  program,  PaineWebber has been retained to serve as lending
agent  for the  funds.  The  board  also  has  authorized  the  payment  of fees
(including  fees  calculated  as a percentage of invested  cash  collateral)  to
PaineWebber for these  services.  The board  periodically  reviews all portfolio
securities  loan  transactions  for which  PaineWebber  acted as lending  agent.
PaineWebber  also has been approved as a borrower  under each funds'  securities
lending program.

      SEGREGATED  ACCOUNTS.  When a fund enters into certain  transactions  that
involve  obligations  to make future  payments to third  parties,  including the
purchase of  securities on a when-issued  or delayed  delivery  basis or reverse
repurchase  agreements,  it  will  maintain  with  an  approved  custodian  in a
segregated  account cash or liquid  securities,  marked to market  daily,  in an
amount at least equal to its obligation or commitment under such transactions.

INVESTMENT LIMITATIONS OF THE FUNDS

      FUNDAMENTAL LIMITATIONS.  The following fundamental investment limitations
cannot be changed for a fund without the  affirmative  vote of the lesser of (a)
more  than 50% of the  outstanding  shares of the fund or (b) 67% or more of the
shares of the fund  present at a  shareholders'  meeting if more than 50% of the
outstanding  shares are  represented at the meeting in person or by proxy.  If a
percentage   restriction  is  adhered  to  at  the  time  of  an  investment  or
transaction,  later changes in percentage  resulting  from a change in values of
portfolio  securities  or  amount  of  total  assets  will not be  considered  a
violation of any of the following limitations.

      Each fund will not:

      (1)   purchase  securities of any one issuer if, as a result, more than 5%
of the fund's total assets would be invested in securities of that issuer or the
fund would own or hold more than 10% of the  outstanding  voting  securities  of
that  issuer,  except that up to 25% of the fund's  total assets may be invested
without  regard to this  limitation,  and except that this  limitation  does not
apply to securities  issued or guaranteed by the U.S.  government,  its agencies
and instrumentalities or to securities issued by other investment companies.

      The  following  interpretation  applies  to,  but is not a part  of,  this
fundamental  restriction:  Mortgage-  and  asset-backed  securities  will not be
considered  to have been issued by the same  issuer by reason of the  securities
having the same sponsor,  and mortgage- and asset-backed  securities issued by a
finance or other  special  purpose  subsidiary  that are not  guaranteed  by the
parent  company will be  considered  to be issued by a separate  issuer from the
parent company.

      (2)   purchase any security if, as a result of that purchase,  25% or more
of the fund's  total assets would be invested in  securities  of issuers  having
their  principal  business  activities  in the same  industry,  except that this
limitation  does not  apply  to  securities  issued  or  guaranteed  by the U.S.
government,  its agencies or  instrumentalities or to municipal securities or to
certificates  of deposit and bankers'  acceptances of domestic  branches of U.S.
banks.



                                       7
<PAGE>

      The  following  interpretations  apply  to,  but are not a part  of,  this
fundamental restriction:  (a) domestic and foreign banking will be considered to
be different  industries;  and (b)  asset-backed  securities  will be grouped in
industries based upon their underlying  assets and not treated as constituting a
single, separate industry.

      (3)   issue  senior securities or borrow money,  except as permitted under
the Investment Company Act and then not in excess of 33-1/3% of the fund's total
assets  (including the amount of the senior securities issued but reduced by any
liabilities not constituting  senior  securities) at the time of the issuance or
borrowing,  except that the fund may borrow up to an  additional 5% of its total
assets (not including the amount borrowed) for temporary or emergency purposes.

      (4) make loans,  except  through loans of portfolio  securities or through
repurchase  agreements,  provided  that for  purposes of this  restriction,  the
acquisition  of bonds,  debentures,  other debt  securities or  instruments,  or
participations   or  other  interests  therein  and  investments  in  government
obligations,  commercial paper, certificates of deposit, bankers' acceptances or
similar instruments will not be considered the making of a loan.

      The  following  interpretation  applies  to,  but is not a part  of,  this
fundamental  restriction:  Money Market Fund's  investments  in master notes and
similar instruments will not be considered to be the making of a loan.

      (5)   engage in the business of underwriting  securities of other issuers,
except to the extent that the fund might be considered an underwriter  under the
federal  securities  laws  in  connection  with  its  disposition  of  portfolio
securities.

      (6)   purchase or sell real estate,  except that investments in securities
of  issuers  that  invest in real  estate  and  investments  in  mortgage-backed
securities,  mortgage participations or other instruments supported by interests
in real estate are not subject to this limitation,  and except that the fund may
exercise  rights under  agreements  relating to such  securities,  including the
right to enforce  security  interests and to hold real estate acquired by reason
of such  enforcement  until  that real  estate can be  liquidated  in an orderly
manner.

      (7)   purchase or sell physical commodities unless acquired as a result of
owning securities or other instruments, but the fund may purchase, sell or enter
into financial options and futures,  forward and spot currency  contracts,  swap
transactions and other financial contracts or derivative instruments.

      NON-FUNDAMENTAL  LIMITATIONS.  The following  investment  restrictions are
non-fundamental  and may be changed by the vote of the board without shareholder
approval.

      Each fund will not:

      (1)   purchase   securities  on  margin,   except  for  short-term  credit
necessary for clearance of portfolio  transactions  and except that the fund may
make  margin  deposits  in  connection  with its use of  financial  options  and
futures,  forward  and spot  currency  contracts,  swap  transactions  and other
financial contracts or derivative instruments.

      (2)   engage  in short sales of securities  or maintain a short  position,
except that the fund may (a) sell short "against the box" and (b) maintain short
positions in connection with its use of financial  options and futures,  forward
and spot currency contracts,  swap transactions and other financial contracts or
derivative instruments.

      (3)   purchase  portfolio  securities  while borrowings in excess of 5% of
its total assets are outstanding.

      (4)  purchase  securities  of other  investment  companies,  except to the
extent  permitted by the Investment  Company Act and except that this limitation
does not apply to securities  received or acquired as dividends,  through offers
of exchange, or as a result of reorganization, consolidation, or merger.





                                       8
<PAGE>

              ORGANIZATION OF THE TRUST; TRUSTEES AND OFFICERS AND
                         PRINCIPAL HOLDERS OF SECURITIES

      The Trust was formed on  February  4, 1991 as a business  trust  under the
laws of the Commonwealth of Massachusetts  and has three operating  series.  The
Trust has  authority  to issue an  unlimited  number  of  shares  of  beneficial
interest,  par value $.001 per share,  of each  existing or future  series.  The
Trust is governed by a board of trustees,  which oversees the funds' operations.
The board also is authorized to establish  additional  series.  The trustees and
executive  officers of the Trust,  their ages,  business addresses and principal
occupations during the past five years are:

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

Margo N. Alexander**; 52      Trustee and      Mrs.   Alexander   is  chairman
                               President       (since   March   1999),   chief
                                               executive  officer and a director
                                               of   Mitchell   Hutchins   (since
                                               January  1995),  and an executive
                                               vice  president and a director of
                                               PaineWebber  (since  March 1984).
                                               Mrs. Alexander is president and a
                                               director   or   trustee   of   32
                                               investment  companies  for  which
                                               Mitchell Hutchins, PaineWebber or
                                               one of their affiliates serves as
                                               investment adviser.

Richard Q. Armstrong; 64        Trustee        Mr.  Armstrong  is chairman  and
R.Q.A. Enterprises                             principal of R.Q.A.  Enterprises
One Old Church Road                            (management   consulting   firm)
Unit #6                                        (since April 1991 and  principal
Greenwich, CT 06830                            occupation  since  March  1995).
                                               Mr. Armstrong was chairman of the
                                               board,  chief  executive  officer
                                               and   co-owner   of    Adirondack
                                               Beverages      (producer      and
                                               distributor  of soft  drinks  and
                                               sparkling/still  waters) (October
                                               1993-March   1995).   He   was  a
                                               partner   of  The   New   England
                                               Consulting   Group    (management
                                               consulting     firm)    (December
                                               1992-September   1993).   He  was
                                               managing  director  of LVMH  U.S.
                                               Corporation  (U.S.  subsidiary of
                                               the    French     luxury    goods
                                               conglomerate,  Louis Vuitton Moet
                                               Hennessey            Corporation)
                                               (1987-1991)  and  chairman of its
                                               wine  and   spirits   subsidiary,
                                               Schieffelin  &  Somerset  Company
                                               (1987-1991).  Mr.  Armstrong is a
                                               director   or   trustee   of   31
                                               investment  companies  for  which
                                               Mitchell Hutchins, PaineWebber or
                                               one of their affiliates serves as
                                               investment adviser.



                                       9
<PAGE>

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

E. Garrett Bewkes,            Trustee and      Mr.  Bewkes  is  a  director  of
Jr.**; 72                   Chairman of the    Paine  Webber  Group  Inc.  ("PW
                           Board of Trustees   Group")   (holding   company  of
                                               PaineWebber     and     Mitchell
                                               Hutchins).   Prior  to  December
                                               1995,  he was a consultant to PW
                                               Group.  Prior  to  1988,  he was
                                               chairman     of    the    board,
                                               president  and  chief  executive
                                               officer  of  American   Bakeries
                                               Company.   Mr.   Bewkes   is   a
                                               director of Interstate  Bakeries
                                               Corporation.  Mr.  Bewkes  is  a
                                               director   or   trustee   of  35
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

Richard R. Burt; 52             Trustee        Mr.  Burt  is  chairman  of  IEP
1275 Pennsylvania Ave,                         Advisors,   Inc.  (international
N.W.                                           investments    and    consulting
Washington, DC  20004                          firm)  (since  March 1994) and a
                                               partner  of  McKinsey  & Company
                                               (management   consulting   firm)
                                               (since  1991).   He  is  also  a
                                               director                      of
                                               Archer-Daniels-Midland       Co.
                                               (agricultural      commodities),
                                               Hollinger    International   Co.
                                               (publishing),  Homestake  Mining
                                               Corp.,  Powerhouse  Technologies
                                               Inc. and Wierton  Steel Corp. He
                                               was the chief  negotiator in the
                                               Strategic Arms  Reduction  Talks
                                               with  the  former  Soviet  Union
                                               (1989-1991)    and   the    U.S.
                                               Ambassador    to   the   Federal
                                               Republic        of       Germany
                                               (1985-1989).   Mr.   Burt  is  a
                                               director   or   trustee   of  31
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

Mary C. Farrell**; 49           Trustee        Ms.   Farrell   is  a   managing
                                               director,    senior   investment
                                               strategist  and  member  of  the
                                               Investment  Policy  Committee of
                                               PaineWebber.  Ms. Farrell joined
                                               PaineWebber  in  1982.  She is a
                                               member of the Financial  Women's
                                               Association      and     Women's
                                               Economic  Roundtable and appears
                                               as a  regular  panelist  on Wall
                                               $treet     Week    with    Louis
                                               Rukeyser.  She  also  serves  on
                                               the  Board of  Overseers  of New
                                               York  University's  Stern School
                                               of  Business.  Ms.  Farrell is a
                                               director   or   trustee   of  31
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.



                                       10
<PAGE>

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

Meyer Feldberg; 57              Trustee        Mr.   Feldberg   is   Dean   and
Columbia University                            Professor of  Management  of the
101 Uris Hall                                  Graduate   School  of  Business,
New York, NY  10027                            Columbia  University.  Prior  to
                                               1989,  he  was  president  of the
                                               Illinois Institute of Technology.
                                               Dean  Feldberg is also a director
                                               of  Primedia,   Inc.,   Federated
                                               Department   Stores,   Inc.   and
                                               Revlon,  Inc.  Dean Feldberg is a
                                               director   or   trustee   of   34
                                               investment  companies  for  which
                                               Mitchell Hutchins, PaineWebber or
                                               one of their affiliates serves as
                                               investment adviser.

George W. Gowen; 69             Trustee        Mr.  Gowen is a  partner  in the
666 Third Avenue                               law    firm    of    Dunnington,
New York, NY  10017                            Bartholow  &  Miller.  Prior  to
                                               May 1994, he was a partner in the
                                               law firm of Fryer,  Ross & Gowen.
                                               Mr.   Gowen  is  a  director   or
                                               trustee    of    34    investment
                                               companies   for  which   Mitchell
                                               Hutchins,  PaineWebber  or one of
                                               their   affiliates    serves   as
                                               investment adviser.

Frederic V. Malek; 62           Trustee        Mr.  Malek is chairman of Thayer
1455 Pennsylvania Ave,                         Capital    Partners    (merchant
N.W.                                           bank).   From  January  1992  to
Suite 350                                      November  1992,  he was campaign
Washington, DC  20004                          manager  of   Bush-Quayle   `92.
                                               From  1990 to 1992,  he was vice
                                               chairman   and,   from  1989  to
                                               1990,   he  was   president   of
                                               Northwest   Airlines  Inc.,  NWA
                                               Inc.    (holding    company   of
                                               Northwest   Airlines  Inc.)  and
                                               Wings  Holdings  Inc.   (holding
                                               company of NWA  Inc.).  Prior to
                                               1989,  he  was  employed  by the
                                               Marriott   Corporation  (hotels,
                                               restaurants,   airline  catering
                                               and contract feeding),  where he
                                               most  recently  was an executive
                                               vice   president  and  president
                                               of Marriott  Hotels and Resorts.
                                               Mr.  Malek is also a director of
                                               American   Management   Systems,
                                               Inc. (management  consulting and
                                               computer   related    services),
                                               Automatic    Data    Processing,
                                               Inc., CB Commercial  Group, Inc.
                                               (real estate  services),  Choice
                                               Hotels  International (hotel and
                                               hotel  franchising),  FPL Group,
                                               Inc. (electric services),  Manor
                                               Care,  Inc.  (health  care)  and
                                               Northwest   Airlines   Inc.  Mr.
                                               Malek is a  director  or trustee
                                               of 31  investment  companies for
                                               which     Mitchell     Hutchins,
                                               PaineWebber   or  one  of  their
                                               affiliates  serves as investment
                                               adviser.



                                       11
<PAGE>

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

Carl W. Schafer; 63             Trustee        Mr.  Schafer is president of the
66 Witherspoon Street,                         Atlantic Foundation  (charitable
#1100                                          foundation   supporting   mainly
Princeton, NJ  08542                           oceanographic   exploration  and
                                               research).  He is a director  of
                                               Base    Ten    Systems,     Inc.
                                               (software),   Roadway   Express,
                                               Inc.  (trucking),  The  Guardian
                                               Group  of  Mutual   Funds,   the
                                               Harding,  Loevner  Funds,  Evans
                                               Systems,   Inc.   (motor  fuels,
                                               convenience       store      and
                                               diversified            company),
                                               Electronic  Clearing House, Inc.
                                               (financial          transactions
                                               processing),     Frontier    Oil
                                               Corporation   and   Nutraceutix,
                                               Inc.  (biotechnology   company).
                                               Prior to  January  1993,  he was
                                               chairman   of   the   Investment
                                               Advisory    Committee   of   the
                                               Howard      Hughes       Medical
                                               Institute.   Mr.  Schafer  is  a
                                               director   or   trustee   of  31
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

Brian M. Storms;** 44           Trustee        Mr.   Storms  is  president  and
                                               chief   operating   officer   of
                                               Mitchell  Hutchins  (since March
                                               1999).  Prior to March 1999,  he
                                               was   president  of   Prudential
                                               Investments  (1996-1999).  Prior
                                               to joining Prudential,  he was a
                                               managing  director  at  Fidelity
                                               Investments.  Mr.  Storms  is  a
                                               director   or   trustee   of  31
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

John J. Lee; 30            Vice President and  Mr. Lee is a vice  president and
                          Assistant Treasurer  a  manager  of the  mutual  fund
                                               finance  department  of  Mitchell
                                               Hutchins.   Prior  to   September
                                               1997,  he was an audit manager in
                                               the financial  services  practice
                                               of Ernst & Young LLP.  Mr. Lee is
                                               a vice  president  and  assistant
                                               treasurer   of   32    investment
                                               companies   for  which   Mitchell
                                               Hutchins,  PaineWebber  or one of
                                               their  affiliates  serves  as  an
                                               investment adviser.

Kevin J. Mahoney; 33       Vice President and  Mr.  Mahoney  is  a  first  vice
                          Assistant Treasurer  president  and a senior  manager
                                               of  the  mutual   fund   finance
                                               department      of      Mitchell
                                               Hutchins.   From   August   1996
                                               through  March 1999,  he was the
                                               manager  of  the   mutual   fund
                                               internal    control   group   of
                                               Salomon Smith  Barney.  Prior to
                                               August    1996,    he   was   an
                                               associate      and     assistant
                                               treasurer      of      BlackRock
                                               Financial  Management  L.P.  Mr.
                                               Mahoney is a vice  president and
                                               assistant    treasurer   of   32
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.



                                       12
<PAGE>

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

Dennis McCauley; 52          Vice President    Mr.   McCauley   is  a  managing
                                               director  and  chief  investment
                                               officer--fixed      income     of
                                               Mitchell   Hutchins.   Prior  to
                                               December  1994,  he was director
                                               of fixed income  investments  of
                                               IBM  Corporation.  Mr.  McCauley
                                               is  a  vice   president   of  22
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

Ann E. Moran; 42           Vice President and  Ms.  Moran  is a vice  president
                          Assistant Treasurer  and  a  manager  of  the  mutual
                                               fund   finance   department   of
                                               Mitchell Hutchins.  Ms. Moran is
                                               a vice  president  and assistant
                                               treasurer   of   32   investment
                                               companies  for  which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser.

Dianne E. O'Donnell; 47    Vice President and  Ms.  O'Donnell  is a senior vice
                               Secretary       president  and  deputy   general
                                               counsel  of  Mitchell  Hutchins.
                                               Ms.    O'Donnell   is   a   vice
                                               president  and  secretary  of 31
                                               investment  companies and a vice
                                               president      and     assistant
                                               secretary   of  one   investment
                                               company   for   which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser.

Emil Polito; 38              Vice President    Mr.  Polito  is  a  senior  vice
                                               president    and   director   of
                                               operations   and   control   for
                                               Mitchell  Hutchins.  Mr.  Polito
                                               is  a  vice   president   of  32
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.

Susan Ryan; 39               Vice President    Ms.   Ryan  is  a  senior   vice
                                               president and portfolio  manager
                                               of  Mitchell  Hutchins  and  has
                                               been  with   Mitchell   Hutchins
                                               since  1982.  Ms. Ryan is a vice
                                               president  of  five   investment
                                               companies  for  which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser

Victoria E. Schonfeld; 48    Vice President    Ms.   Schonfeld  is  a  managing
                                               director and general  counsel of
                                               Mitchell   Hutchins  (since  May
                                               1994)   and   a   senior    vice
                                               president of PaineWebber  (since
                                               July 1995).  Ms.  Schonfeld is a
                                               vice  president of 31 investment
                                               companies  and a vice  president
                                               and secretary of one  investment
                                               company   for   which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser.



                                       13
<PAGE>

                                                  BUSINESS EXPERIENCE;
 NAME AND ADDRESS*; AGE   POSITION WITH TRUST     OTHER DIRECTORSHIPS
 ----------------------   -------------------     -------------------

Paul H. Schubert; 36       Vice President and  Mr.  Schubert  is a senior  vice
                               Treasurer       president  and  director  of the
                                               mutual fund  finance  department
                                               of   Mitchell   Hutchins.    Mr.
                                               Schubert  is  a  vice  president
                                               and  treasurer of 32  investment
                                               companies  for  which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser.

Barney A. Taglialatela;    Vice President and  Mr.   Taglialatela   is  a  vice
38                        Assistant Treasurer  president  and a manager  of the
                                               mutual fund  finance  department
                                               of Mitchell  Hutchins.  Prior to
                                               February  1995, he was a manager
                                               of  the  mutual   fund   finance
                                               division   of   Kidder   Peabody
                                               Asset   Management,   Inc.   Mr.
                                               Taglialatela     is    a    vice
                                               president      and     assistant
                                               treasurer   of   32   investment
                                               companies  for  which   Mitchell
                                               Hutchins,  PaineWebber or one of
                                               their   affiliates   serves   as
                                               investment adviser.

Keith A. Weller; 38        Vice President and  Mr.   Weller  is  a  first  vice
                          Assistant Secretary  president and associate  general
                                               counsel  of  Mitchell  Hutchins.
                                               Prior  to  May  1995,  he was an
                                               attorney  in  private  practice.
                                               Mr.  Weller is a vice  president
                                               and  assistant  secretary  of 31
                                               investment  companies  for which
                                               Mitchell  Hutchins,  PaineWebber
                                               or  one  of   their   affiliates
                                               serves as investment adviser.
- -------------
*   Unless  otherwise  indicated,  the business address of each listed person is
    1285 Avenue of the Americas, New York, New York 10019.

**  Mrs.  Alexander,  Mr.  Bewkes,  Ms.  Farrell and Mr. Storms are  "interested
    persons" of the fund as defined in the  Investment  Company Act by virtue of
    their positions with Mitchell Hutchins, PaineWebber, and/or PW Group.

      The Trust pays each board member who is not an "interested  person" of the
Trust $1,000  annually and up to $150 for each board meeting and each meeting of
a board committee.  Each chairman of the audit and contract review committees of
individual  funds  within  the  PaineWebber  fund  complex  receives  additional
compensation,  aggregating $15,000 annually,  from the relevant funds. All board
members are reimbursed for any expenses  incurred in attending  meetings.  Board
members  and  officers  of the  Trust own in the  aggregate  less than 1% of the
outstanding shares of any class of each fund.  Because  PaineWebber and Mitchell
Hutchins perform  substantially all the services  necessary for the operation of
the Trust, the Trust requires no employees. No officer,  director or employee of
Mitchell  Hutchins or PaineWebber  presently  receives any compensation from the
Trust for acting as a board member or officer.







                                       14
<PAGE>


      The table below includes certain information  relating to the compensation
of the  Trust's  current  trustees  who held office with the funds or with other
PaineWebber funds during the fiscal year ended April 30, 1999.

                               COMPENSATION TABLE+



                                            AGGREGATE       TOTAL COMPENSATION
                                          COMPENSATION      FROM THE TRUST AND
            NAME OF PERSON, POSITION     FROM THE TRUST*     THE FUND COMPLEX**
            ------------------------     ---------------     ------------------

         Richard Q. Armstrong,
             Trustee                                               $ 101,372
         Richard R. Burt,
             Trustee                                                 101,372
         Meyer Feldberg,
             Trustee                                                 116,222
         George W Gowen,
             Trustee                                                 108,272
         Frederic V. Malek,
             Trustee                                                  101372
         Carl W. Schafer,
             Trustee                                                 101,372
- --------------------
+  Only  independent  board members are  compensated by the Trust and identified
   above;  board  members  who  are  "interested  persons,"  as  defined  by the
   Investment Company Act, do not receive compensation.

*  Represents fees paid to each board member for the fiscal year ended April 30,
   1999.

** Represents  total  compensation  paid during the calendar year ended December
   31, 1998, to each board member by 31 investment  companies (33 in the case of
   Messrs.  Feldberg and Gowen) for which Mitchell Hutchins,  PaineWebber or one
   of  their  affiliates  served  as  investment  adviser.  No fund  within  the
   PaineWebber fund complex has a bonus,  pension,  profit sharing or retirement
   plan.

                         PRINCIPAL HOLDERS OF SECURITIES

      As  of  July  31,  1999,   the  Trust's   records  showed  [the  following
shareholders as owning 5% or more of a class of the funds' shares.

                                  [to be added]




                                       15
<PAGE>


                     INVESTMENT ADVISORY AND DISTRIBUTION ARRANGEMENTS

      INVESTMENT  ADVISORY   ARRANGEMENTS.   PaineWebber  acts  as  the  Trust's
investment adviser and administrator pursuant to a contract dated April 13, 1995
("Advisory Contract").  Under the Advisory Contract,  each fund pays PaineWebber
an annual fee,  computed  daily and paid monthly,  at an annual rate of 0.25% of
its average daily net assets.

      During each of the periods  indicated,  PaineWebber earned or accrued fees
under the  Advisory  Contract  in the  amounts  set forth  below.  During  these
periods, PaineWebber voluntarily waived a portion of its fees and/or voluntarily
paid other fund expenses.

                                        FISCAL YEAR ENDED APRIL 30
                                 ------------------------------------------
                                        1999            1998          1997
                                 ------------   -------------  ------------
      Money Market Fund......                     $3,572,192    $2,196,654
         Fee Amount Waived                           716,790       439,015
         Expenses Reimbursed                           2,739             0
      Government Securities Fund                     215,911       203,152
         Fee Amount Waived                            43,177        40,607
         Expenses Reimbursed                         210,691       144,536
      Treasury Securities Fund                       259,380        99,845
         Fee Amount Waived                            51,876        19,956
         Expenses Reimbursed                         128,386       147,250


      Under a contract with PaineWebber dated April 15, 1996 ("Mitchell Hutchins
Contract"),   Mitchell   Hutchins   serves  as  the  Trust's   sub-adviser   and
sub-administrator.  Under the Mitchell Hutchins  Contract,  PaineWebber (not the
Trust) pays Mitchell  Hutchins a fee,  computed  daily and paid  monthly,  at an
annual  rate of 50% of the  fees  paid by each  fund to  PaineWebber  under  the
PaineWebber Contract, net of waivers and/or reimbursements.

      During each of the periods  indicated,  PaineWebber  paid (or  accrued) to
Mitchell  Hutchins the fees indicated  below under either the Mitchell  Hutchins
Contract or a predecessor agreement:

                                        FISCAL YEAR ENDED APRIL 30
                                 ------------------------------------------
                                         1999           1998          1997
                                 -------------   ------------   -----------
      Money Market Fund......                     $1,503,380      $887,358
      Government Securities Fund                           0         8,099
      Treasury Securities Fund                        39,694             0

      Under the terms of the  Advisory  Contract,  each fund bears all  expenses
incurred in its  operation  that are not  specifically  assumed by  PaineWebber.
General  expenses  of the Trust  not  readily  identifiable  as  belonging  to a
specific fund or to the Trust's  other series are  allocated  among series by or
under the  direction of the board of directors in such manner as the board deems
fair and  equitable.  Expenses borne by the Trust include the following (or each
fund's share of the following):  (1) the cost (including  brokerage  commissions
and other transaction costs, if any) of securities purchased or sold by the fund
and any  losses  incurred  in  connection  therewith;  (2) fees  payable  to and
expenses  incurred  on behalf  of the fund by  PaineWebber;  (3)  organizational
expenses;  (4)  filing  fees  and  expenses  relating  to the  registration  and
qualification  of fund  shares  under  federal  and  state  securities  laws and
maintaining such registrations and qualifications; (5) fees and salaries payable
to the  directors  and  officers who are not  interested  persons of the fund or
PaineWebber;  (6)  all  expenses  incurred  in  connection  with  the  trustees'


                                       16
<PAGE>

services,  including  travel  expenses;  (7)  taxes  (including  any  income  or
franchise   taxes)  and   governmental   fees;   (8)  costs  of  any  liability,
uncollectible  items of deposit and other insurance or fidelity  bonds;  (9) any
costs,  expenses or losses arising out of a liability of or claim for damages or
other relief asserted against the Trust or a fund for violation of any law; (10)
legal, accounting and auditing expenses, including legal fees of special counsel
for those directors who are not interested persons of the Trust; (11) charges of
custodians,  transfer agents and other agents;  (12) expenses of setting in type
and  printing   prospectuses  and  statements  of  additional   information  and
supplements  thereto,  reports and statements to shareholders and proxy material
for  existing  shareholders;   costs  of  mailing  such  materials  to  existing
shareholders;  (13)  costs of  mailing  prospectuses  and  supplements  thereto,
statements of additional information and supplements thereto,  reports and proxy
materials to existing  shareholders;  (14) any extraordinary expenses (including
fees and  disbursements  of counsel,  costs of actions,  suits or proceedings to
which the Trust is a party and the  expenses  the Trust may incur as a result of
its legal  obligation  to provide  indemnification  to its  officers,  trustees,
agents and shareholders)  incurred by a fund; (15) fees,  voluntary  assessments
and other expenses incurred in connection with membership in investment  company
organizations;  (16)  costs of  mailing  and  tabulating  proxies  and  costs of
meetings of shareholders, the board and any committees thereof; (17) the cost of
investment company  literature and other publications  provided to the directors
and  officers;  and  (18)  costs  of  mailing,   stationery  and  communications
equipment.

      The Advisory and Mitchell Hutchins Contracts  (collectively,  "Contracts")
noted above provide that PaineWebber or Mitchell  Hutchins,  as the case may be,
shall not be liable for any error of  judgment or mistake of law or for any loss
suffered by the funds in connection with the performance of the contract, except
a loss resulting from willful misfeasance,  bad faith or gross negligence on the
part of PaineWebber or Mitchell  Hutchins,  in the  performance of its duties or
from reckless disregard of its duties and obligations thereunder.

      The Contracts are terminable by vote of the funds' board or by the holders
of a majority  of the  outstanding  voting  securities  of the funds at any time
without penalty, on 60 days' written notice to PaineWebber or Mitchell Hutchins,
as the case may be. The Advisory Contract is also terminable  without penalty by
PaineWebber on 60 days' written notice to the Trust,  and the Mitchell  Hutchins
Contract is terminable without penalty by PaineWebber or Mitchell Hutchins on 60
days' written notice to the other party. The Contracts  terminate  automatically
upon their assignment,  and the Mitchell  Hutchins  Contract also  automatically
terminates upon the assignment of the Advisory Contract.

      During the fiscal year ended April 30, 1999,  the funds [did not] pay fees
to  PaineWebber  for its  services  as lending  agent  because the funds did not
engage in any securities lending activities.

      NET ASSETS.  The following  table shows the  approximate  net assets as of
July 31, 1999,  sorted by category of investment  objective,  of the  investment
companies as to which Mitchell  Hutchins  serves as adviser or  sub-adviser.  An
investment company may fall into more than one of the categories below.

                                                                  NET ASSETS
                           INVESTMENT CATEGORY                      ($MIL)
          Domestic (excluding Money Market)................
          Global...........................................
          Equity/Balanced..................................
          Fixed Income (excluding Money Market)............
                Taxable Fixed Income.......................
                Tax-Free Fixed Income......................
          Money Market Funds...............................


      PERSONAL  TRADING  POLICIES.  Mitchell  Hutchins  personnel  may invest in
securities  for their own accounts  pursuant to a code of ethics that  describes
the fiduciary duty owed to shareholders of PaineWebber  funds and other Mitchell
Hutchins advisory  accounts by all Mitchell  Hutchins'  directors,  officers and
employees,  establishes  procedures for personal investing and restricts certain
transactions.  For example,  employee  accounts  generally must be maintained at


                                       17
<PAGE>

PaineWebber,  personal  trades  in most  securities  require  pre-clearance  and
short-term  trading and participation in initial public offerings  generally are
prohibited.  In addition,  the code of ethics puts restrictions on the timing of
personal investing in relation to trades by PaineWebber Funds and other Mitchell
Hutchins advisory clients.

      DISTRIBUTION  ARRANGEMENTS.  PaineWebber  acts as the  distributor of each
fund's  shares  under a  distribution  contract  with the  Trust  ("Distribution
Contract"),  which requires PaineWebber to use its best efforts, consistent with
its other business, to sell shares of the funds. Shares of the funds are offered
continuously.

      FINANCIAL  INTERMEDIARIES.  Financial  intermediaries,  such as banks  and
savings  associations,  may  purchase  Financial  Intermediary  shares  for  the
accounts of their customers.  The Trust has adopted a shareholder  services plan
("Plan") with respect to Financial  Intermediary shares.  PaineWebber implements
the Plan on behalf of the Trust by entering into a service  agreement  with each
financial intermediary that purchases Financial Intermediary shares requiring it
to provide  support  services to its customers who are the beneficial  owners of
Financial Intermediary shares.

      Under the Plan,  each fund pays  PaineWebber  an annual  fee at the annual
rate  of  0.25%  of  the  average  daily  net  assets  value  of  the  Financial
Intermediary  shares  held  by  financial  intermediaries  on  behalf  of  their
customers.  Under each service  agreement,  PaineWebber pays an identical fee to
the financial  intermediary  for providing the support services to its customers
specified in the service agreement.  These services may include: (i) aggregating
and processing  purchase and redemption  requests from customers and placing net
purchase and redemption orders with PaineWebber; (ii) providing customers with a
service  that  invests the assets of their  accounts in  Financial  Intermediary
shares;  (iii)  processing  dividend  payments  from  the  Trust  on  behalf  of
customers;  (iv) providing  information  periodically to customers showing their
positions in Financial  Intermediary  shares; (v) arranging for bank wires; (vi)
responding  to customer  inquiries  relating to the  services  performed  by the
financial intermediary; (vii) providing sub-accounting with respect to Financial
Intermediary shares beneficially owned by customers or the information necessary
for sub-accounting;  (viii) forwarding shareholder communications from the Trust
(such  as  proxies,  shareholder  reports  and  dividend,  distribution  and tax
notices) to customers,  if required by law; and (ix) other  similar  services if
requested by the Trust.  During the fiscal year ended April 30, 1999,  the Trust
made payments through  PaineWebber to financial  intermediaries  with respect to
Financial  Intermediary  shares in the amount of  $__________  for Money  Market
Fund, $ for Government Securities Fund and $
 for Treasury Securities Fund.

      Under the terms of the service  agreements,  financial  intermediaries are
required to provide to their  customers a schedule of any  additional  fees that
they may charge  customers in  connection  with their  investments  in Financial
Intermediary  shares.  Financial  Intermediary shares are available for purchase
only by financial  intermediaries that have entered into service agreements with
PaineWebber  in  connection  with  their  investment.  Financial  intermediaries
providing  services to  beneficial  owners of Financial  Intermediary  shares in
certain  states may be required to be  registered  as dealers  under the laws of
those states.

      The Plan requires that PaineWebber  provide to the board at least annually
a written report of the amounts expended by PaineWebber under service agreements
with financial  intermediaries and the purposes for which such expenditures were
made. Each service  agreement  requires the financial  intermediary to cooperate
with  PaineWebber in providing  information to the board with respect to amounts
expended  and services  provided  under the service  agreement.  The Plan may be
terminated at any time,  without  penalty,  by vote of the trustees of the Trust
who are not  "interested  persons"  of the Trust as  defined  in the  Investment
Company  Act and who  have no  direct  or  indirect  financial  interest  in the
operation of the Plan ("Disinterested Trustees"). Any amendment to the Plan must
be  approved  by the board and any  material  amendment  must be approved by the
Disinterested Trustees.

      Should future legislative,  judicial or administrative  action prohibit or
restrict  the  activities  of  banks  serving  as  financial  intermediaries  in
connection with the provision of support services to their customers,  the Trust
and  PaineWebber  might be required to alter or discontinue  their  arrangements
with financial intermediaries and change their method of operations with respect
to Financial  Intermediary  shares.  It is not  anticipated,  however,  that any


                                       18
<PAGE>

change in the Trust's method of operations would affect its net asset values per
share or result in a financial loss to any shareholder.

      Conflict of interest  restrictions may apply to a financial  institution's
receipt  of  compensation  from a  fund  through  PaineWebber  under  a  service
agreement   resulting   from   fiduciary   funds  being  invested  in  Financial
Intermediary shares. Before investing fiduciary funds in Financial  Intermediary
shares, financial intermediaries,  including investment advisers and other money
managers  under the  jurisdiction  of the SEC, the  Department of Labor or state
securities  commissions  and banks  regulated by the Comptroller of the Currency
should consult their legal advisors.

                             PORTFOLIO TRANSACTIONS

      The funds purchase  portfolio  securities from dealers and underwriters as
well as from issuers.  Securities are usually traded on a net basis with dealers
acting as principal for their own accounts without a stated  commission.  Prices
paid to dealers in principal transactions generally include a "spread," which is
the difference between the prices at which the dealer is willing to purchase and
sell a specific  security at the time.  When  securities are purchased  directly
from an issuer,  no  commissions  or discounts  are paid.  When  securities  are
purchased in underwritten offerings, they include a fixed amount of compensation
to the underwriter.

      The  Sub-Advisory Contract authorizes Mitchell Hutchins (with the approval
of the board) to select  brokers and dealers to execute  purchases  and sales of
each fund's portfolio  securities.  It directs Mitchell Hutchins to use its best
efforts to obtain the best  available  price and most  favorable  execution with
respect to all  transactions for the funds. To the extent that the execution and
price offered by more than one dealer are comparable,  Mitchell Hutchins may, in
its discretion,  effect  transactions  in portfolio  securities with dealers who
provide the funds or  Mitchell  Hutchins  with  research,  analysis,  advice and
similar  services.  Although  Mitchell  Hutchins may receive certain research or
execution services in connection with these  transactions,  Mitchell Hutchins on
behalf of the  funds  will not  purchase  securities  at a higher  price or sell
securities  at a lower price than would  otherwise be paid had no services  been
provided by the executing  dealer.  Moreover,  Mitchell  Hutchins will not enter
into any explicit soft dollar  arrangements  relating to principal  transactions
and will not receive in principal  transactions the types of services that could
be purchased for hard dollars.  Research services  furnished by the dealers with
which each fund effects securities transactions may be used by Mitchell Hutchins
in  advising  other  funds or  accounts  it advises  and,  conversely,  research
services  furnished  to  Mitchell  Hutchins  in  connection  with other funds or
accounts  that  Mitchell  Hutchins  advises may be used in  advising  the funds.
Information  and research  received from dealers will be in addition to, and not
in lieu of, the services required to be performed by Mitchell Hutchins under the
Sub-Advisory Contract.

      During  the  last  three  fiscal  years,   the  funds  paid  no  brokerage
commissions.

      Mitchell  Hutchins may engage in agency  transactions in  over-the-counter
debt   securities  in  return  for  research  and  execution   services.   These
transactions  are entered into only in compliance with procedures  ensuring that
the  transaction  (including  commissions)  is at least as favorable as it would
have been if effected directly with a market-maker that did not provide research
or execution  services.  These  procedures  include a requirement  that Mitchell
Hutchins obtain multiple quotes from dealers before  executing the  transactions
on an agency basis.

      Investment  decisions  for the  funds and for  other  investment  accounts
managed by Mitchell  Hutchins are made  independently  of each other in light of
differing considerations for the various accounts.  However, the same investment
decision  may  occasionally  be  made  for  the  funds  and  one or more of such
accounts. In such cases, simultaneous transactions are inevitable.  Purchases or
sales are then  averaged  as to price and  allocated  between the funds and such
other  account(s) as to amount  according to a formula  deemed  equitable to the
funds and such  account(s).  While in some  cases  this  practice  could  have a
detrimental  effect upon the price or value of the  security as far as the funds
are concerned,  or upon its ability to complete its entire order, in other cases
it is  believed  that  coordination  and the  ability to  participate  in volume
transactions will be beneficial to the funds.



                                       19
<PAGE>

      As of _________,  1999, the following  fund(s) owned securities  issued by
the following  companies  which are regular  broker-dealers  for the  respective
fund:

                                  [to be added]



                  ADDITIONAL INFORMATION REGARDING REDEMPTIONS

      Each  fund may  suspend  redemption  privileges  or  postpone  the date of
payment  during  any period (1) when the New York  Stock  Exchange  ("NYSE")  is
closed or trading on the NYSE is  restricted  as determined by the SEC, (2) when
an  emergency  exists,  as  defined  by the SEC,  that  makes it not  reasonably
practicable  for the fund to  dispose  of  securities  owned by it or  fairly to
determine  the value of its assets or (3) as the SEC may otherwise  permit.  The
redemption price may be more or less than the shareholder's  cost,  depending on
the  market  value of each  fund's  portfolio  at the time;  although  the funds
attempt to maintain a constant net asset value of $1.00 per share.

      If  conditions  exist  that  make  cash  payments  undesirable,  each fund
reserves  the right to honor any request  for  redemption  by making  payment in
whole or in part in securities  chosen by the fund and valued in the same way as
they would be valued for  purposes of computing  the fund's net asset value.  If
payment is made in securities,  the shareholder may incur brokerage  expenses in
converting  these  securities into cash. The Trust is obligated to redeem shares
solely in cash up to the lesser of  $250,000  or 1% of the net asset  value of a
fund during any 90-day period for a shareholder.

                               VALUATION OF SHARES

      Money  Market  Fund's  net asset  value per share is  determined  by State
Street Bank and Trust Company ("State Street") as of noon and 2:30 p.m., Eastern
time, on each Business Day. Government Securities Fund's and Treasury Securities
Fund's net asset  values per share are  determined  by State  Street as of noon,
Eastern time, on each Business Day. As defined in the Prospectus, "Business Day"
means any day on which the Massachusetts  offices of State Street and the fund's
transfer agent,  First Data Services Group, Inc.  ("Transfer Agent") and the New
York  City  offices  of  PaineWebber  and  PaineWebber's  bank  are all open for
business.  One or more of these institutions will be closed on the observance of
the following holidays: New Year's Day, Martin Luther King, Jr. Day, Presidents'
Day,  Good Friday,  Memorial Day,  Independence  Day,  Labor Day,  Columbus Day,
Veterans' Day, Thanksgiving Day and Christmas Day.

      Each fund values its portfolio securities in accordance with the amortized
cost method of valuation  under Rule 2a-7 ("Rule") under the Investment  Company
Act. To use  amortized  cost to value its portfolio  securities,  the funds must
adhere to certain conditions under the Rule relating to its investments, some of
which are discussed in this SAI.  Amortized cost is an  approximation  of market
value of an instrument,  whereby the difference between its acquisition cost and
value at maturity is amortized on a straight-line  basis over the remaining life
of the instrument.  The effect of changes in the market value of a security as a
result of  fluctuating  interest  rates is not taken into account,  and thus the
amortized  cost method of valuation may result in the value of a security  being
higher or lower than its actual market value.  If a large number of  redemptions
take place at a time when interest rates have increased, the funds might have to
sell  portfolio  securities  prior to maturity  and at a price that might not be
desirable.

      The board has  established  procedures  for the purpose of  maintaining  a
constant  net asset  value of $1.00  per  share,  which  include a review of the
extent of any deviation of net asset value per share,  based on available market
quotations,  from the $1.00 amortized cost per share. If that deviation  exceeds
1/2 of 1% for each fund,  the board will  promptly  consider  whether any action
should be initiated to  eliminate  or reduce  material  dilution or other unfair
results to  shareholders.  Such  action may  include  redeeming  shares in kind,
selling  portfolio  securities  prior  to  maturity,   reducing  or  withholding
dividends  and  utilizing  a net asset  value per share as  determined  by using
available market quotations.  Each fund will maintain a dollar-weighted  average
portfolio  maturity  of 90 days or less  and will not  purchase  any  instrument


                                       20
<PAGE>

having,  or deemed to have,  a remaining  maturity  of more than 397 days,  will
limit portfolio  investments,  including  repurchase  agreements,  to those U.S.
dollar-denominated  instruments that are of high quality under the Rule and that
Mitchell Hutchins, acting pursuant to the procedures, determines present minimal
credit  risks,  and  will  comply  with  certain   reporting  and  recordkeeping
procedures.  There is no assurance  that constant net asset value per share will
be maintained.  If amortized cost ceases to represent fair value per share,  the
board will take appropriate action.

      In determining the approximate market value of portfolio investments,  the
funds may employ outside organizations, which may use a matrix or formula method
that takes into consideration market indices,  matrices,  yield curves and other
specific adjustments.  This may result in the securities being valued at a price
different  from the price  that  would  have been  determined  had the matrix or
formula method not been used. Other assets,  if any, are valued at fair value as
determined in good faith by or under the direction of the board.

                             PERFORMANCE INFORMATION

      The funds'  performance  data quoted in advertising and other  promotional
materials ("Performance  Advertisements") represent past performance and are not
intended to indicate future performance. The investment return will fluctuate.

      TOTAL  RETURN   CALCULATIONS.   Average   annual   total   return   quotes
("Standardized  Return")  used in each  fund's  Performance  Advertisements  are
calculated according to the following formula:

       P(1 + T)n  =     ERV
     where:     P =  a hypothetical initial payment of $1,000 to purchase shares
                     of a specified class
                T =  average  annual total return of shares of that class
                n =  number of years
              ERV =  ending redeemable value of a hypothetical $1,000 payment at
                     the beginning of that period.

      Under  the  foregoing  formula,  the  time  periods  used  in  Performance
Advertisements  will be based on rolling calendar quarters,  updated to the last
day of the most recent  quarter  prior to submission  of the  advertisement  for
publication.  Total return,  or "T" in the formula above, is computed by finding
the average annual change in the value of an initial $1,000  investment over the
period. All dividends are assumed to have been reinvested at net asset value.

      The funds also may refer in  Performance  Advertisements  to total  return
performance  data that are not  calculated  according  to the  formula set forth
above ("Non-Standardized  Return"). The funds calculate  Non-Standardized Return
for specified periods of time by assuming an investment of $1,000 in fund shares
and assuming the reinvestment of all dividends distributions. The rate of return
is determined by subtracting the initial value of the investment from the ending
value and by dividing the remainder by the initial value.






                                       21
<PAGE>


      The following  tables show  performance  information for the funds' shares
outstanding for the periods indicated.  All returns for periods of more than one
year are expressed as an average annual return.

                                MONEY MARKET FUND

                                   FINANCIAL INTERMEDIARY
                                         SHARES             INSTITUTIONAL SHARES
   Year ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Five Years ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Inception* to April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
- --------------
* The inception date for the fund is February 14, 1991.

                           GOVERNMENT SECURITIES FUND
                                   FINANCIAL INTERMEDIARY
                                         SHARES             INSTITUTIONAL SHARES
   Year ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Five Years ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Inception* to April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....

- --------------
* The inception date for the fund is February 14, 1991.


                                       22
<PAGE>


                            TREASURY SECURITIES FUND

                                   FINANCIAL INTERMEDIARY
                                         SHARES             INSTITUTIONAL SHARES
   Year ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Five Years ended April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
   Inception* to April 30, 1999:
         Standardized Return.........
         Non-Standardized Return.....
- --------------
* The inception date for the fund is February 14, 1991.

      CALCULATION  OF YIELD.  Each fund computes its yield and  effective  yield
quotations using  standardized  methods required by the SEC. The funds from time
to time  advertise  (1) its current  yield based on a recently  ended  seven-day
period, computed by determining the net change, exclusive of capital changes, in
the value of a hypothetical  pre-existing  account having a balance of one share
at the beginning of the period,  subtracting a  hypothetical  charge  reflecting
deductions from that shareholder  account,  dividing the difference by the value
of the  account at the  beginning  of the base  period to obtain the base period
return  and then  multiplying  the  base  period  return  by  (365/7),  with the
resulting yield figure carried to at least the nearest hundredth of one percent;
and (2) its effective  yield based on the same  seven-day  period by compounding
the base period  return by adding 1, raising the sum to a power equal to (365/7)
and subtracting 1 from the result, according to the following formula:

                   EFFECTIVE YIELD = [(BASE PERIOD RETURN + 1)365/7] - 1

      The funds may also advertise other  performance data, which may consist of
the annual or cumulative return (including net short-term  capital gain, if any)
earned on a  hypothetical  investment in each fund since it began  operations or
for shorter  periods.  This return  data may or may not assume  reinvestment  of
dividends (compounding).

      Yield may  fluctuate  daily and does not  provide a basis for  determining
future yields. Because the yield of each fund fluctuates,  it cannot be compared
with yields on savings accounts or other investment alternatives that provide an
agreed to or guaranteed fixed yield for a stated period of time. However,  yield
information may be useful to an investor  considering  temporary  investments in
money market  instruments.  In  comparing  the yield of one money market fund to
another,  consideration  should  be given to each  fund's  investment  policies,
including the types of investments  made, the average  maturity of the portfolio
securities and whether there are any special account charges that may reduce the
yield.

      Money  Market Fund,  Government  Securities  Fund and Treasury  Securities
Fund's yields and effective yields for the seven-day period ended April 30, 1999
were ________ and ___________;  __________ and  ___________;  and __________ and
___________, respectively.

      OTHER  INFORMATION.  The funds' performance data quoted in advertising and
other  promotional  materials  ("Performance   Advertisements")  represent  past
performance  and are not  intended to predict or indicate  future  results.  The
return  on  an  investment  in  each  fund  will   fluctuate.   In   Performance
Advertisements,  the funds may compare its yield with data  published  by Lipper
Analytical   Services,   Inc.  for  money  funds   ("Lipper"),   CDA  Investment
Technologies,  Inc.  ("CDA"),  IBC Financial  Data, Inc.  ("IBC"),  Wiesenberger
Investment  Companies Service  ("Wiesenberger")  or Investment Company Data Inc.
("ICD"),  or with  the  performance  of  recognized  stock  and  other  indexes,
including the Standard & Poor's 500 Composite  Stock Price Index,  the Dow Jones
Industrial  Average,  the Morgan Stanley Capital  International World Index, the
Lehman Brothers  Treasury Bond Index,  the Lehman Brothers  Government/Corporate
Bond  Index,  the  Salomon  Brothers  Government  Bond Index and  changes in the


                                       23
<PAGE>

Consumer Price Index as published by the U.S. Department of Commerce.  The funds
also may refer in such materials to mutual fund  performance  rankings and other
data, such as comparative  asset,  expense and fee levels,  published by Lipper,
CDA, IBC,  Wiesenberger  or ICD.  Performance  Advertisements  also may refer to
discussions of the funds and comparative  mutual fund data and ratings  reported
in independent  periodicals,  including THE WALL STREET JOURNAL, MONEY MAGAZINE,
FORBES,  BUSINESS WEEK, FINANCIAL WORLD, BARRON'S,  FORTUNE, THE NEW YORK TIMES,
THE CHICAGO TRIBUNE, THE WASHINGTON POST and THE KIPLINGER LETTERS.  Comparisons
in Performance Advertisements may be in graphic form.

      The funds may also compare their  performance with the performance of bank
certificates  of deposit  ("CDs") as measured by the CDA  Certificate of Deposit
Index and the Bank Rate Monitor  National Index and the average of yields of CDs
of major banks published by Banxquotes(R)  Money Markets.  In comparing a fund's
performance to CD performance,  investors  should keep in mind that bank CDs are
insured in whole or in part by an agency of the U.S.  government and offer fixed
principal and fixed or variable  rates of interest,  and that bank CD yields may
vary  depending on the  financial  institution  offering  the CD and  prevailing
interest  rates.  Bank  accounts are insured in whole or in part by an agency of
the U.S.  government  and may offer a fixed rate of return.  Fund shares are not
insured or guaranteed by the U.S. government and returns thereon will fluctuate.
While the funds seek to  maintain  a stable net asset  value of $1.00 per share,
there can be no assurance that it will be able to do so.

      The funds may  include  discussions  or  illustrations  of the  effects of
compounding  in  Performance  Advertisements.  "Compounding"  refers to the fact
that,  if dividends on the funds'  investments  are  reinvested by being paid in
additional fund shares, any future income of the funds would increase the value,
not only of the original  funds'  investments,  but also of the additional  fund
shares  received  through  reinvestment.  As a result,  the value of the  funds'
investments would increase more quickly than if dividends had been paid in cash.
The funds may also make available to shareholders a daily accrual factor or "mil
rate" representing  dividends accrued to shareholder  accounts on a given day or
days. Certain shareholders may find that this information facilitates accounting
or recordkeeping.

                                      TAXES

      BACKUP  WITHHOLDING.  The  funds  are  required  to  withhold  31%  of all
dividends  and  redemption  proceeds  payable to  individuals  and certain other
non-corporate  shareholders  who do not provide the funds or PaineWebber  with a
correct  taxpayer  identification  number.  Withholding  at  that  rate  also is
required from dividends payable to those  shareholders who otherwise are subject
to backup withholding.

      QUALIFICATION AS A REGULATED  INVESTMENT  COMPANY.  To continue to qualify
for  treatment  as a regulated  investment  company  ("RIC")  under the Internal
Revenue Code, the fund must distribute to its shareholders for each taxable year
at least 90% of its investment company taxable income  (consisting  generally of
net investment  income and net short-term  capital gains,  if any) and must meet
several additional requirements. Among these requirements are the following: (1)
the fund must  derive at least 90% of its gross  income each  taxable  year from
dividends,  interest,  payments with respect to securities  loans and gains from
the sale or other disposition of securities and certain other income; (2) at the
close of each quarter of the fund's  taxable  year, at least 50% of the value of
its total assets must be  represented  by cash and cash items,  U.S.  government
securities,  securities of other RICs and other securities that are limited,  in
respect of any one issuer,  to an amount that does not exceed 5% of the value of
the  fund's  total  assets;  and (3) at the close of each  quarter of the fund's
taxable year, not more than 25% of the value of its total assets may be invested
in securities (other than U.S. government  securities or the securities of other
RICs) of any one issuer.  If the fund failed to qualify for  treatment  as a RIC
for any taxable  year,  (a) it would be taxed as an  ordinary  Trust on the full
amount of its  taxable  income  for that year  without  being able to deduct the
distributions it makes to its shareholders and (b) the shareholders  would treat
all those distributions as dividends (that is, ordinary income) to the extent of
the fund's  earnings  and profits.  In  addition,  the fund could be required to
recognize  unrealized  gains,  pay  substantial  taxes  and  interest,  and make
substantial distributions before requalifying for RIC treatment.


                                       24
<PAGE>

                                OTHER INFORMATION

      MASSACHUSETTS  BUSINESS TRUST. The Trust is an entity of the type commonly
known as a "Massachusetts business trust." Under Massachusetts law, shareholders
could,  under  certain   circumstances,   be  held  personally  liable  for  the
obligations  of  the  Trust.   However,   the  Declaration  of  Trust  disclaims
shareholder  liability  for acts or  obligations  of the Trust and requires that
notice of such  disclaimer be given in each note,  bond,  contract,  instrument,
certificate or undertaking  made or issued by the trustees or by any officers or
officer by or on behalf of the Trust,  a fund,  the  trustees  or any of them in
connection with the Trust. The Declaration of Trust provides for indemnification
from a fund's  property  for all losses and  expenses  of any  shareholder  held
personally  liable  for  the  obligations  of the  fund.  Thus,  the  risk  of a
shareholder's  incurring  financial loss on account of shareholder  liability is
limited  to  circumstances  in which a fund  itself  would be unable to meet its
obligations,  a  possibility  which  PaineWebber  believes  is  remote  and  not
material.  Upon  payment  of  any  liability  incurred  by  a  shareholder,  the
shareholder  paying such  liability will be entitled to  reimbursement  from the
general  assets of the fund.  The trustees  intend to conduct the  operations of
each fund in such a way as to avoid, as far as possible,  ultimate  liability of
the shareholders for liabilities of the fund.

      CLASS OF SHARES.  A share of each class of a fund represent an interest in
the  fund's  investment  portfolios  and  has  similar  rights,  privileges  and
preferences.  Each share of a fund has equal  voting,  dividend and  liquidation
rights,  except that beneficial owners of Financial  Intermediary shares receive
certain  services  directly from financial  intermediaries  and bear the related
service costs.

      VOTING RIGHTS. Shareholders of each fund are entitled to one vote for each
full share held and fractional votes for fractional  shares held.  Voting rights
are not  cumulative  and,  as a result,  the holders of more than 50% of all the
shares of the Trust may elect all its board  members.  The shares of a fund will
be voted together,  except that only the  shareholders of a particular class may
vote on matters  affecting  only that  class.  The shares of each  series of the
Trust  will  be  voted  separately,  except  when an  aggregate  vote of all the
securities is required by law. Financial intermediaries holding shares for their
own accounts must  undertake to vote the shares in the same  proportions  as the
vote of shares held for their customers.

      The Trust does not hold annual meetings. Shareholders of record holding no
less than two thirds of the  outstanding  shares of the Trust may remove a board
member by vote cast in person or by proxy at a meeting  called for that purpose.
A meeting will be called to vote on the removal of a board member at the written
request of holders  of record of at least 10% of the  outstanding  shares of the
Trust..

      CUSTODIAN AND  RECORDKEEPING  AGENT;  TRANSFER AND DIVIDEND  AGENT.  State
Street Bank and Trust  Company,  located at One Heritage  Drive,  North  Quincy,
Massachusetts  02171, serves as custodian and recordkeeping agent for the funds.
First Data Investor  Services Group,  Inc., whose principal  business address is
4400  Computer  Drive,  Westborough,  Massachusetts  01581-5159,  is the  fund's
transfer and dividend disbursing agent.

      COUNSEL.  The law firm of  Kirkpatrick & Lockhart LLP, 1800  Massachusetts
Avenue,  N.W.,  Washington,  D.C.  20036-1800,  serves as  counsel  to the fund.
Kirkpatrick  & Lockhart  LLP also acts as counsel to  PaineWebber  and  Mitchell
Hutchins in connection with other matters.

      AUDITORS. Ernst & Young LLP, 787 Seventh Avenue, New York, New York 10019,
serves as independent auditors for the fund.



                              FINANCIAL STATEMENTS

The funds' Annual Report to Shareholders  for their last fiscal year ended April
30,  1999 is a  separate  document  supplied  with this SAI,  and the  financial
statements,  accompanying  notes and report of  independent  auditors  appearing
therein are incorporated herein by this reference.




                                       25
<PAGE>



YOU   SHOULD   RELY   ONLY  ON  THE
INFORMATION  CONTAINED  OR REFERRED
TO  IN  THE   PROSPECTUS  AND  THIS
STATEMENT       OF       ADDITIONAL
INFORMATION.  THE  FUNDS  AND THEIR
DISTRIBUTOR   HAVE  NOT  AUTHORIZED
ANYONE   TO   PROVIDE    YOU   WITH
INFORMATION THAT IS DIFFERENT.  THE
PROSPECTUS  AND THIS  STATEMENT  OF      Mitchell Hutchins'
ADDITIONAL  INFORMATION  IS  NOT AN      Liquid Institutional Reserves
OFFER TO SELL  SHARES  OF THE FUNDS      Money Market Fund
IN ANY JURISDICTION WHERE THE FUNDS      Government Securities Fund
OR   THEIR   DISTRIBUTOR   MAY  NOT      Treasury Securities Fund
LAWFULLY SELL THOSE SHARES.


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

                                             Statement of Additional Information

                                                               September 1, 1999
                                         ---------------------------------------






                                                                     PAINEWEBBER








(C)1999 PaineWebber Incorporated




<PAGE>

                            PART C. OTHER INFORMATION

Item 23.    EXHIBITS


(1)   (a) Amended and Restated Declaration of Trust 1/

      (b) Amendment effective April 18, 1996 to Declaration of Trust 2/

(2)   Amended and Restated By-Laws of the Trust 1/

(3)   Instruments defining the rights of holders of Registrant's shares of
      beneficial interest 3/

(4)   (a) Investment Advisory and Administration Contract between Registrant and
          PaineWebber 4/

      (b) Investment Sub-advisory and Sub-administration Agreement between
          PaineWebber and Mitchell Hutchins  2/


(5)   Distribution Contract between Registrant and PaineWebber 5/

(6)   Bonus, profit or pension plans - none

(7)   Custodian Contract 4/

(8)   (a) Transfer Agency Services and Shareholder Services Agreement 6/

      (b)   Shareholder Service Plan  2/

      (c)   Shareholder Service Agreement  2/

(9)   Opinion and consent of counsel (to be filed)

(10)  Other opinions, appraisals, rulings and consents:  Auditor's consent
      (to be filed)

(11)  Financial statements omitted from Part B - none

(12)  Letter of Investment Intent (previously filed)

(13)  Plan Pursuant to Rule 12b-1 - none

(14)  and

(27)  Financial Data Schedule (not applicable)

(15)  Plan pursuant to Rule 18f-3 2/

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

1/ Incorporated by reference from Post-Effective Amendment No. 11 to the
   registration statement, SEC File No. 33-39029, filed August 28, 1998.

2/ Incorporated by reference from Post-Effective Amendment No. 9 to the
   registration statement, SEC File No. 33-39029, filed August 30, 1996.

3/ Incorporated by reference from Articles II, IV, V, VI, VII and VIII of the
   Registrant's Amended and Restated Declaration of Trust and Article II of the
   Registrant's Amended and Restated By-Laws.

4/ Incorporated by reference from Post-Effective Amendment No. 8 to the
   registration statement, SEC File No. 33-39029, filed July 3, 1996.

5/ Incorporated by reference to Post-Effective Amendment No. 6 to the
   registration statement, SEC File No. 33-39029, filed August 25, 1995.



                                      C-1
<PAGE>

6/ Incorporated by referenced from Post-Effective Amendment No. 10 to the
   registration statement, SEC File No. 33-39029, filed July 2, 1997.


Item 24.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT

      None.

Item 25.  INDEMNIFICATION

      Section 4.2 of Article IV of the Registrant's Declaration of Trust
provides that no Trustee, officer, employee or agent of the Trust shall be
liable to the Trust, its shareholders, or to any shareholder, Trustee, officer,
employee, or agent thereof for any action or failure to act (including without
limitation the failure to compel in any way any former or acting Trustee to
redress any breach of trust) except for his or her own bad faith, willful
misfeasance, gross negligence or reckless disregard of the duties involved in
the conduct of his office.

      Section 4.3(a) of Article IV of the Registrant's Declaration of Trust
provides that the Registrant, or the appropriate series of the Registrant, will
indemnify its Trustees and officers to the fullest extent permitted by law
against all liability and against all expenses reasonably incurred or paid by
such Trustees and officers in connection with any claim, action, suit or
proceeding in which such Trustee or officer becomes involved as a party or
otherwise by virtue of his or her being or having been a Trustee or officer and
against amounts paid or incurred by him or her in the settlement thereof.
Additionally, Section 4.3(b) of Article IV provides that no such person shall be
indemnified (i) where such person is liable to the Trust, a series thereof or
the shareholders by reason of willful misfeasance, bad faith, gross negligence
or reckless disregard of the duties involved in the conduct of his or her
office, (ii) where such person has been finally adjudicated not to have acted in
good faith in the reasonable belief that his or her action was in the best
interest of the Trust, or a series thereof, or (iii) in the event of a
settlement or other disposition not involving a final adjudication as provided
in (ii) above resulting in a payment by a Trustee or officer, unless there has
been a determination by the court of other body approving the settlement or
other disposition or based upon a review of readily available facts by vote of a
majority of the non-interested Trustees or written opinion of independent legal
counsel, that such Trustee or officer did not engage in willful misfeasance, bad
faith, gross negligence or reckless disregard of the duties involved in the
conduct of his or her office. Section 4.3(b) of Article IV further provides that
the rights of indemnification may be insured against by policies maintained by
the Trust. Section 4.4 of Article IV provides that no Trustee shall be obligated
to give any bond or other security for the performance of any of his or her
duties hereunder.

      Section 4.6 of Article IV provides that each Trustee, officer or employee
of the Trust or a series thereof shall, in the performance of his or her duties,
be fully and completely justified and protected with regard to any act or any
failure to act resulting from reliance in good faith upon the books of account
or other records of the Trust or a series thereof, upon an opinion of counsel,
or upon reports made to the Trust or a series thereof by any of its officers or
employees or by the Investment Adviser, the Administrator, the Distributor,
Transfer Agent, selected dealers, accountants, appraisers or other experts or
consultants selected with reasonable care by the Trustees, officers or employees
of the Trust, regardless of whether such counsel or expert may also be a
Trustee.

      Section 9 of the Investment Advisory and Administration Contract with
PaineWebber, Incorporated ("PaineWebber") provides that PaineWebber shall not be
liable for any error of judgment or mistake of law or for any loss suffered by
any series of the Registrant in connection with the matters to which the
Contract relates, except for a loss resulting from the willful misfeasance, bad
faith, or gross negligence of PaineWebber in the performance of its duties or
from its reckless disregard of its obligations and duties under the Contract.
Section 13 of the Contract provides that the Trustees shall not be liable for
any obligations of the Trust or any series under the Contract and that
PaineWebber shall look only to the assets and property of the Registrant in
settlement of such right or claim and not to the assets and property of the
Trustees.

      Section 7 of the Sub-Investment Advisory and Sub-Administration Agreement
between PaineWebber and Mitchell Hutchins Asset Management, Inc. ("Mitchell
Hutchins") provides that PaineWebber shall be indemnified and held harmless by


                                      C-2
<PAGE>

the Registrant against all liabilities, except those arising out of willful
misfeasance, bad faith, or reckless disregard of its obligations and duties
under the Agreement.

      Section 9 of the Distribution Contract provides that the Trust will
indemnify PaineWebber and its officers, directors and controlling persons
against all liabilities arising from any alleged untrue statement of material
fact in the Registration Statement or from any alleged omission to state in the
Registration Statement a material fact required to be stated in it or necessary
to make the statements in it, in light of the circumstances under which they
were made, not misleading, except insofar as liability arises from untrue
statements or omissions made in reliance upon and in conformity with information
furnished by PaineWebber to the Trust for use in the Registration Statement; and
provided that this indemnity agreement shall not protect any such persons
against liabilities arising by reason of their bad faith, gross negligence or
willful misfeasance; and shall not inure to the benefit of any such persons
unless a court of competent jurisdiction or controlling precedent determines
that such result is not against public policy as expressed in the Securities Act
of 1933. Section 9 of each Distribution Contract also provides that PaineWebber
agrees to indemnify, defend and hold the Trust, its officers and Trustees free
and harmless of any claims arising out of any alleged untrue statement or any
alleged omission of material fact contained in information furnished by
PaineWebber for use in the Registration Statement or arising out of an agreement
between PaineWebber and any retail dealer, or arising out of supplementary
literature or advertising used by PaineWebber in connection with the Contract.

      Section 10 of the Distribution Contract contains provisions similar to
Section 13 of the Investment Advisory and Administration Contract.

      Insofar as indemnification for liabilities arising under the Securities
Act of 1933, as amended, may be provided to Trustees, officers and controlling
persons of the Trust, pursuant to the foregoing provisions or otherwise, the
Trust has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Trust of expenses
incurred or paid by a Trustee, officer or controlling person of the Trust in
connection with the successful defense of any action, suit or proceeding or
payment pursuant to any insurance policy) is asserted against the Trust by such
Trustee, officer or controlling person in connection with the securities being
registered, the Trust will, unless in the opinion of its counsel the matter has
been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

Item 26.  BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER

      I. PaineWebber, a Delaware corporation, is a registered investment adviser
and is wholly owned by PaineWebber Group, Inc. PaineWebber is primarily engaged
in the financial services business. Information as to the officers and directors
of PaineWebber is included in its Form ADV as filed with the Securities and
Exchange Commission (registration number 801-7163) and is incorporated herein by
reference.

      II. Mitchell Hutchins, a Delaware corporation, is a registered investment
adviser and is a wholly owned subsidiary of PaineWebber which is, in turn, a
wholly owned subsidiary of PaineWebber Group Inc. Mitchell Hutchins is primarily
engaged in the investment advisory business. Information as to the officers and
directors of Mitchell Hutchins is included in its Form ADV, as filed with the
Securities and Exchange Commission (registration number 801-13219) and is
incorporated herein by reference.



                                      C-3
<PAGE>

Item 27.  PRINCIPAL UNDERWRITERS

(a) PaineWebber serves as principal underwriter and/or investment adviser for
the following other investment companies:

      MITCHELL HUTCHINS INSTITUTIONAL SERIES
      PAINEWEBBER RMA MONEY FUND, INC.
      PAINEWEBBER RMA TAX-FREE FUND, INC.
      PAINEWEBBER MUNICIPAL MONEY MARKET SERIES
      PAINEWEBBER MANAGED MUNICIPAL TRUST


(b) PaineWebber is the Registrant's principal underwriter. The directors and
officers of PaineWebber, their principal business addresses, and their positions
and offices with PaineWebber are identified in its Form ADV filed March 31,
1995, with the Securities and Exchange Commission (registration number 801-7163)
and such information is hereby incorporated herein by reference. The information
set forth below is furnished for those directors and officers of PaineWebber who
also serve as directors or officers of the Trust.


                                Positions and
                                Offices With          Positions and Offices
Name and Principal              Registrant            With Underwriter
- ------------------              ----------            ----------------

Margo N. Alexander              Trustee and President Executive Vice President
                                (Chief Executive      and a Director
                                Officer)


Mary C. Farrell                 Trustee               Managing Director,
                                                      Senior Investment
                                                      Strategist and member of
                                                      the Investment Policy
                                                      Committee

Brian M. Storms                 Trustee               President and Chief
                                                      Operating Officer of
                                                      Mitchell Hutchins



(c)   None.

Item 28.  LOCATION OF ACCOUNTS AND RECORDS

      The books and other documents required by paragraphs (b)(4), (c) and (d)
of Rule 31a-1 under the Investment Company Act of 1940 are maintained in the
physical possession of Registrant's Portfolio Manager, Mitchell Hutchins Asset
Management Inc., 1285 Avenue of the Americas, New York, New York 10019. All
other accounts, books and documents required by Rule 31a-1 are maintained in the
physical possession of Registrant's transfer agent and custodian.

Item 29.  MANAGEMENT SERVICES

      Not applicable.

Item 30.  UNDERTAKINGS

      None.


                                      C-4
<PAGE>

                                   SIGNATURES

      Pursuant  to the  requirements  of the  Securities  Act of  1933  and  the
Investment   Company  Act  of  1940,   the   Registrant  has  duly  caused  this
Post-Effective  Amendment  to its  Registration  Statement  to be  signed on its
behalf by the undersigned,  thereunto duly  authorized,  in the City of New York
and State of New York, on the 30th day of June, 1999.

                              LIQUID INSTITUTIONAL RESERVES

                              By:   /s/ Dianne E. O'Donnell
                                    -------------------------------
                                    Dianne E. O'Donnell
                                    Vice President and Secretary

      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Post-Effective  Amendment has been signed below by the following  persons in the
capacities and on the dates indicated:

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

/s/ Margo N. Alexander              President and Trustee        June 30, 1999
- ----------------------------        (Chief Executive Officer)
Margo N. Alexander *

/s/ E. Garrett Bewkes, Jr.          Trustee and Chairman         June 30, 1999
- ----------------------------        of the Board of Trustees
E. Garrett Bewkes, Jr. *

/s/ Richard Q. Armstong             Trustee                      June 30, 1999
- ----------------------------
Richard Q. Armstrong *

/s/ Richard R. Burt                 Trustee                      June 30, 1999
- ----------------------------
Richard R. Burt *

/s/ Mary C. Farrell                 Trustee                      June 30, 1999
- ----------------------------
Mary C. Farrell *

/s/ Meyer Feldberg                  Trustee                      June 30, 1999
- ----------------------------
Meyer Feldberg *

/s/ George W. Gowen                 Trustee                      June 30, 1999
- ----------------------------
George W. Gowen *

/s/ Frederic V. Malek               Trustee                      June 30, 1999
- ----------------------------
Frederic V. Malek *

/s/ Carl W. Schafer                 Trustee                      June 30, 1999
- ----------------------------
Carl W. Schafer *

/s/ Brian M. Storms                 Trustee                      June 30, 1999
- ----------------------------
Brian M. Storms **

/s/ Paul H. Schubert                Vice President and           June 30, 1999
- ----------------------------        Treasurer (Chief Financial
Paul H. Schubert                    and Accounting Officer)


<PAGE>


                             SIGNATURES (CONTINUED)

*     Signature affixed by Elinor W. Gammon pursuant to powers of attorney dated
      May 21, 1996 and incorporated by reference from Post-Effective Amendment
      No. 30 to the registration statement of PaineWebber Managed Municipal
      Trust, SEC File 2-89016, filed June 27, 1996.

**    Signature affixed by Elinor W. Gammon pursuant to power of attorney dated
      May 14, 1999 and incorporated by reference from Post-Effective Amendment
      No. 61 to the registration statement of PaineWebber Managed Investments
      Trust, SEC File 2-91362, filed June 1, 1999.


<PAGE>

                          LIQUID INSTITUTIONAL RESERVES

                                  EXHIBIT INDEX

Exhibit
Number
- ------


(1)   (a) Amended and Restated Declaration of Trust 1/

      (b) Amendment effective April 18, 1996 to Declaration of Trust 2/

(2)   Amended and Restated By-Laws of the Trust 1/

(3)   Instruments defining the rights of holders of Registrant's shares of
      beneficial interest 3/

(4)   (a) Investment Advisory and Administration Contract between Registrant and
          PaineWebber 4/

      (b) Investment Sub-advisory and Sub-administration Agreement between
          PaineWebber and Mitchell Hutchins  2/


(5)   Distribution Contract between Registrant and PaineWebber 5/

(6)   Bonus, profit or pension plans - none

(7)   Custodian Contract 4/

(8)   (a) Transfer Agency Services and Shareholder Services Agreement 6/

      (b)   Shareholder Service Plan  2/

      (c)   Shareholder Service Agreement  2/

(9)   Opinion and consent of counsel (to be filed)

(10)  Other opinions, appraisals, rulings and consents:  Auditor's consent
      (to be filed)

(11)  Financial statements omitted from Part B - none

(12)  Letter of Investment Intent (previously filed)

(13)  Plan Pursuant to Rule 12b-1 - none

(14)  and

(27)  Financial Data Schedule (not applicable)

(15)  Plan pursuant to Rule 18f-3 2/

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

1/ Incorporated by reference from Post-Effective Amendment No. 11 to the
   registration statement, SEC File No. 33-39029, filed August 28, 1998.

2/ Incorporated by reference from Post-Effective Amendment No. 9 to the
   registration statement, SEC File No. 33-39029, filed August 30, 1996.

3/ Incorporated by reference from Articles II, IV, V, VI, VII and VIII of the
   Registrant's Amended and Restated Declaration of Trust and Article II of the
   Registrant's Amended and Restated By-Laws.

4/ Incorporated by reference from Post-Effective Amendment No. 8 to the
   registration statement, SEC File No. 33-39029, filed July 3, 1996.


<PAGE>

5/ Incorporated by reference to Post-Effective Amendment No. 6 to the
   registration statement, SEC File No. 33-39029, filed August 25, 1995.

6/ Incorporated by referenced from Post-Effective Amendment No. 10 to the
   registration statement, SEC File No. 33-39029, filed July 2, 1997.




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