MITCHELL HUTCHINS SECURITIES TRUST
N-1A/A, 2000-03-07
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           As filed with the Securities and Exchange Commission on March 7, 2000


                                             1933 Act Registration No. 333-94065
                                             1940 Act Registration No. 811-09745

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

           REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [X]


                       Pre-Effective Amendment No      3    [ X ]
                                                     -----
                        Post-Effective Amendment No. _____  [   ]


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


                              Amendment No.  3   [ X ]
                                           -----  ---


                       MITCHELL HUTCHINS SECURITIES TRUST
               (Exact name of registrant as specified in charter)
                               51 West 52nd Street
                          New York, New York 10019-6114
                    (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., Second Floor
                           Washington, D.C. 20036-1800
                            Telephone: (202) 778-9000

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

Registrant  hereby amends this  Registration  Statement on such date or dates as
may be necessary to delay its effective date until the  Registrant  shall file a
further amendment which  specifically  states that this  Registration  Statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities  Act of  1933  or  until  the  Registration  Statement  shall  become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.


Title of Securities Being  Registered:  Class A, B, C and Y Shares of Beneficial
Interest  of  PaineWebber   Enhanced  S&P  500  Fund  and  PaineWebber  Enhanced
Nasdaq-100 Fund.



<PAGE>


                              SUBJECT TO COMPLETION
                   PRELIMINARY PROSPECTUS DATED MARCH 7, 2000

PAINEWEBBER
ENHANCED S&P 500 FUND


PAINEWEBBER
ENHANCED NASDAQ-100 FUND




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

                                   PROSPECTUS
                                  MARCH , 2000


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




This prospectus offers four classes of shares in two of PaineWebber's stock
funds -- Classes A, B, C and Y. Each class has different sales charges and
ongoing expenses. You can choose the class that is best for you based on how
much you plan to invest and how long you plan to hold your fund shares. Class Y
shares are available only to certain types of investors.

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


THE INFORMATION IN THIS PRELIMINARY PROSPECTUS IS NOT COMPLETE AND MAY BE
CHANGED. WE MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED
WITH THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PRELIMINARY
PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND IS NOT SOLICITING AN
OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT
PERMITTED.



<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund

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

                                    CONTENTS
                                    THE FUNDS


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

                          PaineWebber Enhanced S&P 500 Fund:
What every investor         3    Investment Objective, Strategies and Risks
should know about           5    Expenses and Fee Tables
the funds
                          PaineWebber Enhanced Nasdaq-100 Fund:
                            6    Investment Objective, Strategies and Risks
                            8    Expenses and Fee Tables
                            9    More About Risks and Investment Strategies

                                YOUR INVESTMENT

      --------------------------------------------------------------------
Information for            11    Managing Your Fund Account
managing your fund               -- Initial Subscription Period
account                          -- Flexible Pricing
                                 -- Buying Shares
                                 -- Selling Shares
                                 -- Exchanging Shares
                                 -- Pricing and Valuation

                             ADDITIONAL INFORMATION

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



Additional important             18    Management
information about
the funds                        20    Dividends and Taxes

                                21     Appendix


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

Where to learn more                    Back Cover
about PaineWebber
mutual funds

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



                                       2
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      -------------------------------------



                        PAINEWEBBER ENHANCED S&P 500 FUND

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




FUND OBJECTIVE

To seek higher total return over the long term than the S&P 500 Index.

PRINCIPAL INVESTMENT STRATEGIES


The fund seeks to achieve its investment objective by using its sub-adviser's
proprietary enhanced S&P 500 strategy to invest in a selection of common stocks
that are included in the Standard & Poor's Composite Index of 500 Stocks ("S&P
500 Index"). The fund expects normally to invest in approximately 250 to 400
stocks and to weight its holdings of individual stocks based on its
sub-adviser's proprietary enhanced S&P 500 strategy. Compared to the stock
weightings in the S&P 500 Index, the fund overweights stocks that its strategy
ranks positively and underweights stocks that its strategy ranks negatively.
Generally, the fund gives stocks with a neutral ranking the same weight as in
the S&P 500 Index.


The fund seeks to control the risk of its portfolio by maintaining an overall
close correlation between its performance and the performance of the S&P 500
Index over time, with a relatively low tracking error. To maintain this
correlation, the fund gives each stock in its portfolio a weighting that is
close to the S&P 500 Index weighting and, if necessary, readjusts the weighting
when it rebalances the portfolio. The fund also considers relative industry
sector weighting and market capitalization. The fund generally expects to
rebalance its portfolio monthly but may do so more often if its sub-adviser
considers it appropriate to do so.

The fund may invest in U.S. dollar-denominated foreign securities that are
included in S&P 500 Index. The fund may (but is not required to) use options,
futures contracts and other derivatives. The fund may use these instruments in
strategies intended to simulate investment in the S&P 500 Index stocks while
retaining a cash balance for fund management purposes. The fund also may use
these instruments to reduce the risk of adverse price movements while investing
cash received when investors buy shares, to facilitate trading and to reduce
transaction costs.

Mitchell Hutchins Asset Management Inc., the fund's investment adviser, has
selected DSI International Management, Inc. ("DSI") to serve as the fund's
sub-adviser. In selecting securities for the fund, DSI seeks to add value to the
fund's portfolio through stock selection while managing the fund's risk profile.
DSI believes that

o   undervalued securities with improving fundamentals should outperform a given
    benchmark;

o   during different market environments different factors can become more or
    less significant; and

o   unintended deviations from the benchmark should be minimized.


In deciding which stocks to buy and sell for the fund, DSI uses its proprietary
enhanced S&P 500 strategy, which consists of an adaptive stock ranking model and
a portfolio construction model. DSI has developed a quantitative, dynamic,
bottom up, multi-factor model to rank the stocks in the S&P 500 Index, using
relatively independent factors (such as earnings expectations, earnings growth,
valuation, yield, return on equity and margins). DSI believes that these factors
have varying influences during different phases of the stock market cycle and
reevaluates the relative importance and weighting of each factor monthly. DSI
then applies the adaptive stock ranking model to the stocks in the S&P 500
Index, so that relative rankings of the stocks in the S&P 500 Index may change
from month to month.

PRINCIPAL RISKS

An investment in the fund is not guaranteed; you may lose money by investing in
the fund.

Common stocks, which are the fund's main type of investment, generally fluctuate
in value more than other investments. Because the fund invests in accordance
with DSI's proprietary enhanced S&P 500 strategy, the fund expects a close
correlation between its performance and that of the S&P 500 Index in both rising
and falling markets. This strategy, however, may not be successful in selecting


                                       3
<PAGE>

a portfolio for the fund that outperforms the total return of the S&P 500 Index.
As a result, the fund may not achieve its investment objective and may even
underperform relative to the S&P 500 Index. The fund's performance also may
deviate from that of the S&P 500 Index due to the daily cash flows to which the
fund is subject and which will result in ongoing purchases and sales of stocks
and transactional expenses, including brokerage fees. In addition, the fund must
pay fees and expenses that are not borne by the S&P 500 Index.


The fund's investments in derivatives may rise or fall more rapidly than other
investments. Foreign securities involve risks that normally are not associated
with securities of U.S. issuers.


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   Equity Risk

o   DSI Proprietary Strategy Risk

o   Derivatives Risk

o   Foreign Securities Risk

PERFORMANCE INFORMATION


THE FUND IS NEWLY ORGANIZED. AS A RESULT, IT HAS NO OPERATING HISTORY OR
PERFORMANCE INFORMATION TO INCLUDE IN A BAR CHART OR TABLE REFLECTING AVERAGE
ANNUAL RETURNS. SEE "MANAGEMENT - ENHANCED S&P 500 FUND ADDITIONAL INFORMATION
ABOUT DSI" FOR INFORMATION ABOUT THE PERFORMANCE OF PRIVATE ACCOUNTS MANAGED BY
DSI WITH DISCRETIONARY AUTHORITY USING ITS PROPRIETARY ENHANCED S&P 500
STRATEGY.



                                       4
<PAGE>

                        PaineWebber Enhanced S&P 500 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)
<TABLE>
<CAPTION>

                                                            CLASS A      CLASS B        CLASS C      CLASS Y
                                                            -------      -------        -------      -------
<S>                                                           <C>          <C>           <C>          <C>
Maximum Sales Charge (Load) Imposed on Purchases
   (as a % of offering price).............................    3%          None          None         None

Maximum Contingent Deferred Sales Charge (Load) (CDSC)
   (as a % of offering price).............................    None        3%            0.65%        None

Exchange Fee..............................................    None        None          None         None


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

                                                            CLASS A      CLASS B        CLASS C      CLASS Y
                                                            -------      -------        -------      -------
Management Fees...........................................    0.40%        0.40%         0.40%        0.40%
Distribution and/or Service (12b-1) Fees..................    0.25         0.65          0.65         None
Other Expenses*...........................................    0.33         0.33          0.33         0.33
                                                              ----         ----          ----         ----
Total Annual Fund Operating Expenses.....................     0.98%        1.38%         1.38%        0.73%
                                                              ====         ====          ====         ====
*       "Other Expenses" are based on estimated amounts for the current fiscal year.
</TABLE>



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.


The 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 unless
otherwise stated. The example also assumes that your investment has a 5% return
each year and that the fund's operating expenses remain the same, except that
the fund's initial organizational expenses are only included for its first year.
Although your actual costs may be higher or lower, based on these assumptions
your costs would be:


                                                            1 YEAR       3 YEARS
                                                            ------       -------
Class A .................................................     $397         $592
Class B (assuming sale of all shares at end of period)...      441          626
Class B (assuming no sale of shares)................           141          426
Class C (assuming sale of all shares at end ofperiod)....      206          426
Class C (assuming no sale of shares).....................      141          426
Class Y .................................................       75          233








                                       5
<PAGE>




                      PaineWebber Enhanced Nasdaq-100 Fund
           ----------------------------------------------------------

                      PAINEWEBBER ENHANCED NASDAQ-100 FUND

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


FUND OBJECTIVE

To seek higher total return over the long term than the Nasdaq-100 Index.

PRINCIPAL INVESTMENT STRATEGIES

The fund seeks to achieve its investment objective by following its
sub-adviser's proprietary enhanced Nasdaq-100 strategy to invest primarily in a
selection of common stocks that are included in the Nasdaq-100 Index(R)
("Nasdaq-100 Index"). The fund expects normally to invest in a majority of the
stocks in the Nasdaq-100 Index and to weight its holdings of individual stocks
based on its sub-adviser's proprietary enhanced Nasdaq-100 strategy. Compared to
the stock weightings in the Nasdaq-100 Index, the fund overweights stocks that
its strategy ranks positively and underweights stocks that its strategy ranks
negatively. Generally, the fund gives stocks with a neutral ranking the same
weight as in the Nasdaq-100 Index.


The fund seeks to control the risk of its portfolio by maintaining a general
correlation between its performance and the performance of the Nasdaq-100 Index
over time, but does not expect to maintain as close a correlation as Enhanced
S&P 500 Fund does to its benchmark index. To maintain this general correlation,
the fund gives each stock in its portfolio a weighting that is close to the
Nasdaq-100 Index weighting and, if necessary, readjusts the weighting when it
rebalances the portfolio. The fund also considers relative industry weighting
and market capitalization. The fund generally expects to rebalance its portfolio
monthly but may do so more often if its sub-adviser considers it appropriate to
do so. As of December 31, 1999, approximately 74% of the value of the stocks
currently in the Nasdaq-100 Index were in the technology sector, and the fund
expects that its investments will reflect a similar concentration in the
technology sector.


The fund may invest in U.S. dollar-denominated foreign securities that are
included in the Nasdaq-100 Index. The fund may (but is not required to) use
options, futures contracts and other derivatives. The fund may use these
instruments in strategies intended to simulate investment in the Nasdaq-100
Index stocks while retaining a cash balance for fund management purposes. The
fund also may use these instruments to reduce the risk of adverse price
movements while investing cash received when investors buy shares, to facilitate
trading and to reduce transaction costs.

Mitchell Hutchins Asset Management Inc., the fund's investment adviser, has
selected DSI International Management, Inc. ("DSI") to serve as the fund's
sub-adviser. In selecting securities for the fund, DSI seeks to add value to the
fund's portfolio through stock selection while managing the fund's risk profile.
DSI believes that

o   undervalued securities with improving fundamentals should outperform a given
    benchmark;

o   during different market environments different factors can become more or
    less significant; and

o   unintended deviations from the benchmark should be minimized.

In deciding which stocks to buy and sell for the fund, DSI uses its proprietary
enhanced Nasdaq-100 strategy, which consists of an adaptive stock ranking model
and a portfolio construction model. DSI has developed a quantitative, dynamic,
bottom up, multi-factor model to rank the stocks in the Nasdaq-100 Index, using
relatively independent factors (such as earnings expectations, earnings growth,
valuation, return on equity and margins). DSI believes that these factors have
varying influences during different phases of the stock market cycle and
reevaluates the relative importance and weighting of each factor monthly. DSI
then applies the adaptive stock ranking model to the stocks in the Nasdaq-100
Index, so that relative rankings of the stocks in the Nasdaq-100 Index may
change from month to month.


PRINCIPAL RISKS


An investment in the fund is not guaranteed; you may lose money by investing in
the fund.

Common stocks, which are the fund's main type of investment, generally fluctuate
in value more than other investments. Because the fund invests in accordance
with DSI's proprietary enhanced Nasdaq-100 strategy, the fund expects a general
correlation between its performance and that of the Nasdaq-100 Index in both
rising and falling markets. This strategy, however, may not be successful in


                                       6
<PAGE>


selecting a portfolio for the fund that outperforms the total return of the
Nasdaq-100 Index. As a result, the fund may not achieve its investment objective
and may even underperform relative to the Nasdaq-100 Index. The fund's
performance also may deviate from that of the Nasdaq-100 Index due to the daily
cash flows to which the fund is subject and which will result in ongoing
purchases and sales of stocks and transactional expenses, including brokerage
fees. In addition, the fund must pay fees and expenses that are not borne by the
Nasdaq-100 Index.

The stocks in the Nasdaq-100 Index are concentrated in the technology sector and
the fund's investments also are expected to be concentrated in this sector to
permit its portfolio generally to follow the Nasdaq-100 Index. As a result, both
the price performance of the Nasdaq-100 Index and the price of the fund's shares
may be more volatile when compared to other broad-based stock indices. In
addition, the fund's performance will be more severely affected by unfavorable
developments in the technology industry than if it invested in a broader range
of businesses. Because the fund is non-diversified, it can invest more of its
assets in a single issuer than a diversified fund can and expects to do so as
necessary generally to follow the Nasdaq-100 Index. As a result, changes in the
market value of a single issuer can have a greater effect on the fund's
performance and share price than if the fund held a smaller position.

The fund's investments in derivatives may rise or fall more rapidly than other
investments. Foreign securities involve risks that normally are not associated
with securities of U.S. issuers.


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   Equity Risk

o   DSI Proprietary Strategy Risk

o   Technology Sector Concentration Risk

o   Individual Stock Concentration Risk

o   Derivatives Risk

o   Foreign Securities Risk


PERFORMANCE INFORMATION

THE FUND IS  NEWLY  ORGANIZED.  AS A  RESULT,  IT HAS NO  OPERATING  HISTORY  OR
PERFORMANCE  INFORMATION TO INCLUDE IN A BAR CHART OR TABLE  REFLECTING  AVERAGE
ANNUAL RETURNS.


                                       7
<PAGE>

                      PaineWebber Enhanced Nasdaq-100 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)

<TABLE>
<CAPTION>
                                                            CLASS A      CLASS B        CLASS C      CLASS Y
                                                            -------      -------        -------      -------
<S>     <C>    <C>    <C>    <C>    <C>    <C>
Maximum Sales Charge (Load) Imposed on Purchases
   (as a % of offering price)..........................       4.5%         None          None         None
Maximum Contingent Deferred Sales Charge (Load) (CDSC)
   (as a % of offering price)..........................       None          5%            1%          None
Exchange Fee...........................................       None         None          None         None

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


                                                            CLASS A      CLASS B        CLASS C      CLASS Y
                                                            -------      -------        -------      -------
Management Fees........................................       0.75%        0.75%         0.75%        0.75%
Distribution and/or Service (12b-1) Fees...............       0.25         1.00          1.00         None
Other Expenses*........................................       0.28         0.28          0.28         0.28
                                                              ----         ----          ----         ----
Total Annual Fund Operating Expenses...................       1.28%        2.03%         2.03%        1.03%
                                                              ====         ====          ====         ====
</TABLE>


*   "Other Expenses" are based on estimated amounts for the current fiscal year.



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.


The 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 unless
otherwise stated. The example also assumes that your investment has a 5% return
each year and that the fund's operating expenses remain the same, except that
the fund's initial organizational expenses are only included for its first year.
Although your actual costs may be higher or lower, based on these assumptions
your costs would be:

                                                            1 YEAR       3 YEARS
                                                            ------       -------
Class A..................................................     $575         $832
Class B (assuming sale of all shares at end of period)...      706          930
Class B (assuming no sale of shares).....................      206          630
Class C (assuming sale of all shares at end of period)...      306          630
Class C (assuming no sale of shares).....................      206          630
Class Y..................................................      105          321













                                       8
<PAGE>



                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund
- --------------------------------------------------------------------------------

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

PRINCIPAL RISKS

The main risks of investing in one or both of the funds are described below. Not
all of 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.


EQUITY RISK. The prices of common stocks and other equity securities generally
fluctuate more than those of other investments. They reflect changes in the
issuing company's financial condition and changes in the overall market. Common
stocks generally represent the riskiest investment in a company. A fund may lose
a substantial part, or even all, of its investment in a company's stock.


DSI PROPRIETARY STRATEGY RISK. By using DSI's proprietary strategies, each fund
seeks to outperform the total return of its benchmark index and to maintain a
correlation between the fund's performance and that of the benchmark index in
both rising and falling markets. The DSI proprietary strategies, however, may
not be successful in selecting a portfolio for a fund that outperforms the total
return of its benchmark index. As a result, a fund may not achieve its
investment objective and may even underperform relative to its benchmark index.
A fund's performance also may deviate from that of its benchmark index due to
the daily cash flows to which each fund is subject and which will result in the
ongoing purchases and sales of stocks and transactional expenses, including
brokerage fees. In addition, each fund must pay fees and expenses that are not
borne by an index.


TECHNOLOGY  SECTOR  CONCENTRATION  RISK.  Enhanced  Nasdaq-100  Fund  expects to
concentrate  its  investments  in a  particular  industry  sector to the  extent
necessary  generally to follow the Nasdaq-100  Index.  The risk of concentrating
the fund's  investments in issuers that conduct business in the same industry is
that the fund will be more  susceptible  to the risks that are  associated  with
that  sector  than a fund  that  does not  concentrate  its  investments.  As of
December 31, 1999,  approximately  74% of the index  underlying  the  Nasdaq-100
Index was  concentrated in companies in the technology  sector,  which has shown
relatively high  volatility in price  performance.  As a result,  both the price
performance  of the  Nasdaq-100  Index and the price of the fund's shares may be
more volatile when compared to other broad-based stock indices. In addition, the
fund's performance will be more severely affected by unfavorable developments in
the  technology  industry than if it invested in a broader range of  businesses.
Individual issuers within the technology sector as well as the technology sector
as  a  whole,  can  be  significantly   affected  by  obsolescence  of  existing
technology,  short product cycles,  falling prices and profits,  and competition
from new market entrants.

INDIVIDUAL STOCK CONCENTRATION RISK. Enhanced Nasdaq-100 Fund is
non-diversified, which means that it is not subject to certain limitations on
its ability to invest more than 5% of its total assets in securities of a single
issuer. The fund expects to invest more than 5% of its total assets in the
securities of specific companies as needed generally to follow the Nasdaq-100
Index. The identity and capitalization weightings of the companies which
represented 5% or more of the Nasdaq-100 Index as of February 29, 2000 were as
follows: Microsoft Corporation (7.06%), Cisco Systems, Inc. (6.93%), Intel
Corporation (5.88%) and Qualcomm Incorporated (5.32%). When a fund holds a large
position in the securities of one issuer, changes in the financial condition or
in the market's assessment of that issuer may cause larger changes in the fund's
total return and in the price of its shares than if the fund held only a smaller
position.

DERIVATIVES RISK. The value of "derivatives" - so called because their value
"derives" from the value of an underlying asset, reference rate or index - may
rise or fall more rapidly than other investments. For some derivatives, it is
possible for a fund to lose more than the amount it invested in the derivative.
Options and futures contracts are examples of derivatives. A fund's use of
derivatives may not succeed for various reasons, including unexpected changes in
the values of the derivatives or the assets underlying the derivatives. If a
fund uses derivatives to adjust or "hedge" the overall risk of its portfolio, it
is possible that the hedge will not succeed if changes in the value of the
derivatives that are not matched by opposite changes in the value of the rest of
a fund's portfolio.

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.



                                       9
<PAGE>


ADDITIONAL INVESTMENT STRATEGIES

USE OF PROCEEDS OF INITIAL OFFERING. The funds may not be fully invested in
stocks until approximately 30 days after they begin investment operations.
During that period, each fund may invest a larger than normal portion of its
assets in short-term debt obligations, money market instruments and options and
futures contracts as well as purchasing stocks represented in its benchmark
index.

PORTFOLIO TURNOVER. Each fund may engage in frequent trading to achieve its
investment objective. Frequent trading can result in portfolio turnover of 100%
or more (high portfolio turnover).

Frequent trading may increase the portion of a fund's capital gains that are
realized for tax purposes in any given year. This may increase the fund's
taxable dividends in that year. Frequent trading also may increase the portion
of a fund's realized capital gains that are considered "short-term" for tax
purposes. Shareholders will pay higher taxes on dividends that represent
short-term gains than they would pay on dividends that represent long-term
gains. Frequent trading also may result in higher fund expenses due to
transaction costs.

The funds do not restrict the frequency of trading in order to limit expenses or
the tax effect that the fund's dividends may have on shareholders.

MORE INFORMATION ABOUT THE BENCHMARK INDICES


The S&P 500 Index is composed of 500 common stocks that are selected by Standard
& Poor's, a division of The McGraw-Hill Companies, Inc. ("S&P"). Most of these
500 stocks trade on the New York Stock Exchange. These stocks represent
approximately 75% of the market value of all U.S. common stocks but do not
necessarily represent the largest companies. S&P selects the component stocks
included in the S&P 500 Index with the aim of achieving a distribution that is
representative of the various industry components of the U.S. market for common
stocks. S&P also considers aggregate market value and trading activity in the
selection process. Enhanced S&P 500 Fund is not sponsored, endorsed, sold or
promoted by S&P and S&P makes no representation regarding the advisability of
investing in the fund. S&P 500(R) is a trademark of The McGraw-Hill Companies,
Inc. and has been licensed for use by Mitchell Hutchins.

The Nasdaq-100 Index is a modified capitalization-weighted index composed of 100
of the largest non-financial domestic or international companies listed on the
National Market tier of The Nasdaq Stock Market, Inc. ("Nasdaq"). All companies
listed on the Nasdaq-100 Index have an average daily trading volume of at least
100,000 shares, must be "seasoned" (generally by having been listed on a market
for at least two years) and must meet other requirements. The Nasdaq-100 Index
was created in 1985. Enhanced Nasdaq-100 Fund is not sponsored, endorsed, sold
or promoted by Nasdaq, and Nasdaq makes no representation regarding the
advisability of investing in the fund. Nasdaq-100(R) and Nasdaq-100 IndEx(R) and
NaSdaq(R) are trade or serviCE marks of Nasdaq and have been licensed for use by
Mitchell Hutchins.









                                       10
<PAGE>



                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund
- --------------------------------------------------------------------------------

                                 Your Investment

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


INITIAL SUBSCRIPTION PERIOD


During an initial subscription period currently scheduled to end on or about
April 25, 2000, each fund will offer its Class B, C and Y shares at a
subscription price equal to its initial net asset value per share of $10 and
will offer its Class A shares at that price plus any applicable sales charge.
You must pay the purchase price as indicated below. Shares of the funds may not
be purchased through an exchange for shares of other PaineWebber mutual funds
during the initial subscription period. Each fund expects to begin investment
operations shortly after the subscription period ends. After April 28, 2000, the
net asset value of fund shares will vary, and the price of fund shares will be
determined as described below.


After the initial sales period ends, each fund may stop offering its shares for
purchase (including exchange purposes) for a period of up to 60 days. You will
not be able to buy shares of a fund during this period, but you will be able to
sell your shares. Mitchell Hutchins will decide whether a fund should
temporarily stop offering its shares based on its judgment of whether the
sub-adviser can invest the initial offering proceeds more effectively without
daily inflows of new money.

During the offering period, PaineWebber and selected dealers may obtain
non-binding indications of interest before they actually confirm any orders.
They will accept subscriptions through the last day of the offering period date,
although no payment is due until the offering period closes. During the offering
period, a fund may cancel or modify the offering of shares without notice. A
fund may also refuse any order in whole or in part.


FLEXIBLE PRICING

The funds offer four classes of shares - Class A, Class B, Class C and Class Y.
Each class has different sales charges and ongoing expenses. You can choose the
class that is best for you, based on how much you plan to invest and how long
you plan to hold your fund shares. Class Y shares are only available to certain
types of investors.

Each fund has adopted a plan under rule 12b-1 for its Class A, Class B and Class
C shares that allows it to pay service and (for Class B and Class C shares)
distribution fees for the sale of its shares and services provided to
shareholders. Because the 12b-1 distribution fees for Class B and Class C shares
are paid out of a fund's assets on an ongoing basis, over time they will
increase the cost of your investment and may cost you more than if you paid a
front-end sales charge.

CLASS A SHARES

Class A shares have a front-end sales charge that is included in the offering
price of the Class A shares. This sales charge is not invested in the fund.
Class A shares pay an annual 12b-1 service fee of 0.25% of average net assets,
but they pay no 12b-1 distribution fees. The ongoing expenses for Class A shares
are lower than for Class B and Class C shares.

The Class A sales charges for each fund are described in the following tables.



                                       11
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund
- --------------------------------------------------------------------------------

<TABLE>

<CAPTION>
ENHANCED S&P 500 FUND -- CLASS A SALES CHARGES


                                      SALES CHARGE AS A PERCENTAGE OF:         DISCOUNT TO SELECTED DEALERS AS
AMOUNT OF INVESTMENT                 OFFERING PRICE   NET AMOUNT INVESTED       PERCENTAGE OF OFFERING PRICE*
- --------------------                 --------------   -------------------       -----------------------------
<S>                                       <C>                 <C>                          <C>
Less than $50,000..........               3.00%               3.09%                        2.75%
$50,000 to $99,999.........               2.50                2.56                         2.25
$100,000 to $249,999......                2.00                2.04                         1.75
$250,000 to $499,999 ......               1.50                1.52                         1.25
$500,000 to $999,999 ......               1.25                1.27                         1.00
$1,000,000 and over (1) ...               None                None                         0.50(2)

ENHANCED NASDAQ-100 FUND -- CLASS A SALES CHARGES
                                      SALES CHARGE AS A PERCENTAGE OF:       DISCOUNT TO SELECTED DEALERS AS
AMOUNT OF INVESTMENT                 OFFERING PRICE NET AMOUNT INVESTED       PERCENTAGE OF OFFERING PRICE
- --------------------                 -------------- -------------------       ----------------------------
Less than $50,000..........               4.50%               4.71%                        4.25%
$50,000 to $99,999.........               4.00                4.17                         3.75
$100,000 to $249,999......                3.50                3.63                         3.25
$250,000 to $499,999 ......               2.50                2.56                         2.25
$500,000 to $999,999 ......               1.75                1.78                         1.50
$1,000,000 and over (1) ...               None                None                         1.00(2)
</TABLE>


_____________
**For the initial subscription period ending on or about April 25, 2000,
    Mitchell Hutchins will reallow the full amount of the sales charge to
    selected dealers.
(1) A contingent deferred sales charge of 1% (0.50% for Enhanced S&P 500 Fund)
    of the shares' offering price or the net asset value at the time of sale by
    the shareholder, whichever is less, is charged on sales of shares made
    within one year of the purchase date. Class A shares representing
    reinvestment of dividends are not subject to this charge. Withdrawals in the
    first year after purchase of up to 12% of the value of the fund account
    under the Fund's Systematic Withdrawal Plan are not subject to this charge.
(2) Mitchell Hutchins pays 1% (0.50% for Enhanced S&P 500 Fund) to
    PaineWebber.



SALES CHARGE REDUCTIONS AND WAIVERS. You may qualify for a lower sales charge if
you already own Class A shares of a PaineWebber mutual fund. You can combine the
value of Class A shares that you own in other PaineWebber funds and the purchase
amount of the Class A shares of the PaineWebber fund that you are buying.

You may also qualify for a lower sales charge if you combine your purchases with
those of:

o   your spouse, parents or children under age 21;

o   your Individual Retirement Accounts (IRAs);

o   certain employee benefit plans, including 401(k) plans;

o   a company that you control;

o   a trust that you created;

o   Uniform Gifts to Minors Act/Uniform Transfers to Minors Act accounts created
    by you or by a group of investors for your children; or

o   accounts with the same adviser.

You may qualify for a complete waiver of the sales charge for Class A shares if
you:

o   Are an employee of PaineWebber or its affiliates or the spouse, parent or
    child under age 21 of a PaineWebber employee;

o   Buy these shares through a PaineWebber Financial Advisor who was formerly
    employed as an investment executive with a competing brokerage firm that was
    registered as a broker-dealer with the SEC, and

          -    you were the Financial Advisor's client at the competing
               brokerage firm;


                                       12
<PAGE>

          -    within 90 days of buying shares in a fund, you sell shares of one
               or more mutual funds that were principally underwritten by the
               competing brokerage firm or its affiliates, and you either paid a
               sales charge to buy those shares, pay a contingent deferred sales
               charge when selling them or held those shares until the
               contingent deferred sales charge was waived; and


          -    you purchase an amount that does not exceed the total amount of
               money you received from the sale of the other mutual fund;


o   Acquire these shares through the reinvestment of dividends of a PaineWebber
    unit investment trust;

o   Are a 401(k)or 403(b) qualified employee benefit plan with 50 or more
    eligible employees in the plan or at least $1 million in assets;

o   Are a participant in the PaineWebber Members OnlySM Program. For investments
    made pursuant to this waiver, Mitchell Hutchins may make payments out of its
    own resources to PaineWebber and to participating membership organizations
    in a total amount not to exceed 1% of the amount invested; or

o   Acquire these shares through a PaineWebber InsightOneSM Program brokerage
    account.

NOTE: See the funds' SAI for some other sales charge waivers. If you think you
qualify for any sales charge reductions or waivers, you may need to provide
documentation to PaineWebber or the funds. For more information, you should
contact your PaineWebber Financial Advisor or correspondent firm or call
1-800-647-1568. If you want information on the fund's Systematic Withdrawal
Plan, see the SAI or contact your PaineWebber Financial Advisor or correspondent
firm.

CLASS B SHARES

Class B shares have a contingent deferred sales charge. When you purchase Class
B shares, we invest 100% of your purchase in fund shares. However, you may have
to pay the deferred sales charge when you sell your fund shares, depending on
how long you own the shares.


Class B shares pay an annual 12b-1 distribution fee (0.40% of average net assets
for Enhanced S&P 500 Fund and 0.75% of average net assets for Enhanced
Nasdaq-100 Fund). Both funds also pay an annual 12b-1 service fee of 0.25% of
average net assets. If you hold your Class B shares for six years, they will
automatically convert to Class A shares, which have lower ongoing expenses.


If you sell Class B shares before the end of six years, you will pay a deferred
sales charge. We calculate the deferred sales charge by multiplying the lesser
of the net asset value of the Class B shares at the time of purchase or the net
asset value at the time of sale by the percentage shown below:


ENHANCED S&P 500 FUND

                           PERCENTAGE BY WHICH THE
       IF YOU SELL            SHARES' NET ASSET
     SHARES WITHIN:          VALUE IS MULTIPLIED:
     -------------           -------------------


1st year since purchase               3%
2nd year since purchase               3
3rd year since purchase               2
4th year since purchase               2
5th year since purchase               1
6th year since purchase               1
7th year since purchase              None

ENHANCED NASDAQ-100 FUND
                           PERCENTAGE BY WHICH THE
       IF YOU SELL            SHARES' NET ASSET
     SHARES WITHIN:          VALUE IS MULTIPLIED:
     -------------           -------------------

1st year since purchase               5%
2nd year since purchase               4
3rd year since purchase               3
4th year since purchase               2
5th year since purchase               2
6th year since purchase               1
7th year since purchase              None


We will not impose the deferred sales charge on Class B shares representing
reinvestment of dividends or on withdrawals in any year of up to 12% of the
value of your Class B shares under the Systematic Withdrawal Plan.

To minimize your deferred sales charge, we will assume that you are selling:

o   First, Class B shares representing reinvested dividends, and

o   Second, Class B shares that you have owned the longest.

SALES CHARGE WAIVERS. You may qualify for a waiver of the deferred sales charge
on a sale of shares if:


                                       13
<PAGE>


o   You participate in the Systematic Withdrawal Plan;

o   You are older than 59-1/2 and are selling shares to take a distribution from
    certain types of retirement plans;

o   You receive a tax-free return of an excess IRA contribution;

o   You receive a tax-qualified retirement plan distribution following
    retirement; or

o   The shares are sold within one year of your death and you owned the shares
    either (1) as the sole shareholder or (2) with your spouse as a joint tenant
    with the right of survivorship.

NOTE: If you think you qualify for any of these sales charge waivers, you may
need to provide documentation to PaineWebber or the funds. For more information,
you should contact your PaineWebber Financial Advisor or correspondent firm or
call 1-800-647-1568. If you want information on the Systematic Withdrawal Plan,
see the SAI or contact your PaineWebber Financial Advisor or correspondent firm.

CLASS C SHARES

Class C shares have a level load sales charge in the form of ongoing 12b-1
distribution fees. When you purchase Class C shares, we will invest 100% of your
purchase in fund shares.

Class C shares pay an annual 12b-1 distribution fee (0.40% of average net assets
for Enhanced S&P 500 Fund and 0.75% of average net assets for Enhanced
Nasdaq-100 Fund). Both funds pay an annual 12b-1 service fee of 0.25% of average
net assets. Class C shares do not convert to another class of shares. This means
that you will pay the 12b-1 fees for as long as you own your shares.

Class C shares also have a contingent deferred sales charge of 0.65% for
Enhanced S&P 500 Fund and 1% for Enhanced Nasdaq-100 Fund. You may have to pay
the deferred sales charge if you sell your shares within one year of the date
you purchased them. We calculate the deferred sales charge on sales of Class C
shares by multiplying the applicable percentage by the lesser of the net asset
value of the Class C shares at the time of purchase or the net asset value at
the time of sale. We will not impose the deferred sales charge on Class C shares
representing reinvestment of dividends or on withdrawals in the first year after
purchase, of up to 12% of the value of your Class C shares under the Systematic
Withdrawal Plan.

You may be eligible to sell your shares without paying a contingent deferred
sales charge if you:

o   Are a 401(k) or 403(b) qualified employee benefit plan with fewer than 100
    employees or less than $1 million in assets.

NOTE: If you think you qualify for any of these sales charge waivers, you may
need to provide documentation to PaineWebber or the funds. For more information,
you should contact your PaineWebber Financial Advisor or correspondent firm or
call 1-800-647-1568. If you want information on the funds' Systematic Withdrawal
Plan, see the SAI or contact your PaineWebber Financial Advisor or correspondent
firm.


CLASS Y SHARES

Class Y shares have no sales charge. Only specific types of investors can
purchase Class Y shares. You may be eligible to purchase Class Y shares if you:

o   Buy shares through PaineWebber's PACESM Multi Advisor Program;

o   Buy $10 million or more of PaineWebber fund shares at any one time;

o   Are a qualified retirement plan with 5,000 or more eligible employees or $50
    million in assets; or

o   Are an investment company advised by PaineWebber or an affiliate of
    PaineWebber.

The trustee of PaineWebber's 401(k) Plus Plan for its employees is also eligible
to purchase Class Y shares.

Class Y shares do not pay ongoing distribution or service fees or sales charges.
The ongoing expenses for Class Y shares are the lowest for all the classes.

BUYING SHARES

If you are a PaineWebber client, or a client of a PaineWebber correspondent
firm, you can purchase fund shares through your Financial Advisor. Otherwise,
you can invest in the funds through the funds' transfer agent, PFPC Inc. You can
obtain an application by calling 1-800-647-1568. You must complete and sign the
application and mail it, along with a check, to:


                                       14
<PAGE>

    PFPC Inc.
    Attn.: PaineWebber Mutual Funds
    P.O. Box 8950
    Wilmington, DE  19899.

If you wish to invest in other PaineWebber Funds, you can do so by:

o   Contacting your Financial Advisor (if you have an account at PaineWebber or
    at a PaineWebber correspondent firm);

o   Mailing an application with a check; or

o   Opening an account by exchanging shares from another PaineWebber fund.

You do not have to complete an application when you make additional investments
in the same fund.

The funds and Mitchell Hutchins reserve the right to reject a purchase order or
suspend the offering of shares.

MINIMUM INVESTMENTS

  To open an account ....................................$1,000
  To add to an account ...................................$ 100

Each fund may waive or reduce these amounts for:

o   Employees of PaineWebber or its affiliates; or

o   Participants in certain pension plans, retirement accounts, unaffiliated
    investment programs or the funds' automatic investment plans.

FREQUENT TRADING. The interests of a fund's long-term shareholders and its
ability to manage its investments may be adversely affected when its shares are
repeatedly bought and sold in response to short-term market fluctuations -- also
known as "market timing." When large dollar amounts are involved, the fund may
have difficulty implementing long-term investment strategies, because it cannot
predict how much cash it will have to invest. Market timing also may force the
fund to sell portfolio securities at disadvantageous times to raise the cash
needed to buy a market timer's fund shares. These factors may hurt the fund's
performance and its shareholders. When Mitchell Hutchins believes frequent
trading would have a disruptive effect on ability to manage its investments,
Mitchell Hutchins and the fund may reject purchase orders and exchanges into the
fund by any person, group or account that Mitchell Hutchins believes to be a
market timer. A fund may notify the market timer that a purchase order or an
exchange has been rejected after the day the order is placed.

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

You can sell your fund shares at any time. If you own more than one class of
shares, you should specify which class you want to sell. If you do not, the fund
will assume that you want to sell shares in the following order: Class A, then
Class C, then Class B and last, Class Y.

If you want to sell shares that you purchased recently, the fund may delay
payment until it verifies that it has received good payment. If you purchased
shares by check, this can take up to 15 days.

If you have an account with PaineWebber or a PaineWebber correspondent firm, you
can sell shares by contacting your Financial Advisor.

If you do not have an account at  PaineWebber or a  correspondent  firm, and you
bought  your  shares  through the  transfer  agent,  you can sell your shares by
writing to the fund's transfer agent. Your letter must include:

o   Your name and address;

o   The fund's name;

o   The fund account number;

o   The dollar amount or number of shares you want to sell; and

o   A guarantee of each registered owner's signature. A signature guarantee may
    be obtained from a financial institution, broker, dealer or clearing agency
    that is a participant in one of the medallion programs recognized by the
    Securities Transfer Agents Association. These are: Securities Transfer
    Agents Medallion Program (STAMP), Stock Exchanges Medallion Program (SEMP)
    and the New York Stock Exchange Medallion Signature Program (MSP). The fund
    will not accept signature guarantees that are not a part of these programs.

Mail the letter to:

    PFPC Inc.
    Attn.: PaineWebber Mutual Funds
    P.O. Box 8950
    Wilmington, DE  19899


                                       15
<PAGE>


If you sell Class A shares and then repurchase Class A shares of the same fund
within 365 days of the sale, you can reinstate your account without paying a
sales charge.

It costs each fund money to maintain shareholder accounts. Therefore, the funds
reserve the right to repurchase all shares in any account that has a net asset
value of less than $500. If a fund elects to do this with your account, it will
notify you that you can increase the amount invested to $500 or more within 60
days. A fund will not repurchase shares in accounts that fall below $500 solely
because of a decrease in the fund's net asset value.

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

Except as described below, you may exchange Class A, Class B or Class C shares
of each fund for shares of the same class of most other PaineWebber funds. You
may not exchange Class Y shares. You also may not exchange shares of other
PaineWebber mutual funds for shares of the funds during the initial subscription
period or during the following period of up to 60 days that the funds may stop
offering their shares for purchase.

You will not pay either a front-end sales charge or a deferred sales charge when
you exchange shares. However, you may have to pay a deferred sales charge if you
later sell the shares you acquired in the exchange. Each fund will use the date
that you purchased the shares in the first fund to determine whether you must
pay a deferred sales charge when you sell the shares in the acquired fund.

Other PaineWebber funds may have different minimum investment amounts. You may
not be able to exchange your shares if your exchange is not as large as the
minimum investment amount in that other fund.

You may exchange shares of one fund for shares of another fund only after the
first purchase has settled and the first fund has received your payment.

PAINEWEBBER AND CORRESPONDENT FIRM CLIENTS. If you bought your shares through
PaineWebber or a correspondent firm, you may exchange your shares by placing an
order with your Financial Advisor.

OTHER INVESTORS. If you are not a PaineWebber client, you may exchange your
shares by writing to the fund's transfer agent. You must include:

o   Your name and address;

o   The name of the fund whose shares you are selling and the name of the fund
    whose shares you want to buy;

o   Your account number;

o   How much you are exchanging (by dollar amount or by number of shares to be
    sold); and

o   A guarantee of your signature.  (See "Buying Shares" for information on
    obtaining a signature guarantee.)

Mail the letter to:

    PFPC Inc.
    Attn.: PaineWebber Mutual Funds
    P.O. Box 8950
    Wilmington, DE  19899

A fund may modify or terminate the exchange privilege at any time, subject to
any required notice.

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

The price at which you may buy, sell or exchange fund shares is based on net
asset value per share. Each fund calculates net asset value on days that the New
York Stock Exchange is open. The fund calculates net asset value separately for
each class as of the close of regular trading on the NYSE (generally, 4:00 p.m.,
Eastern time). The NYSE normally is not open, and the funds do not price their
shares, on most national holidays and on Good Friday. If trading on the NYSE is
halted for the day before 4:00 p.m., Eastern time, each fund's net asset value
per share will be calculated as of the time trading was halted.

Your price for buying, selling or exchanging shares will be based on the net
asset value that is next calculated after the fund accepts your order. If you
place your order through PaineWebber, your PaineWebber Financial Advisor is
responsible for making sure that your order is promptly sent to the fund.

You should keep in mind that a front-end sales charge may be applied to your
purchase if you buy Class A or Class C shares. A deferred sales charge may be
applied when you sell Class B or Class C shares.

Each fund calculates its net asset value based on the current market value for
its portfolio securities. The funds normally obtain market values for its
securities from independent pricing services that use reported last sales
prices, current market quotations or valuations from computerized "matrix"
systems that derive values based on comparable securities. If a market value is


                                       16
<PAGE>


not available from an independent pricing source for a particular security, that
security is valued at a fair value determined by or under the direction of the
fund's board. The funds normally use the amortized cost method to value debt
securities that will mature in 60 days or less.


                                       17
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund

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

                                   MANAGEMENT
                                   ----------


INVESTMENT ADVISER


Mitchell Hutchins is the investment adviser and administrator for each fund.
Mitchell Hutchins is located at 51 West 52nd Street, New York, New York,
10019-6114, and is a wholly owned asset management subsidiary of PaineWebber
Incorporated. On January 31, 2000, Mitchell Hutchins was adviser or sub-adviser
of 31 investment companies with 75 separate portfolios and aggregate assets of
approximately $52.7 billion.

DSI International Management, Inc., also a wholly owned asset management
subsidiary of PaineWebber Incorporated, is the sub-adviser for each fund. DSI is
located at 301 Merritt 7, Norwalk, Connecticut 06851. As of January 31, 2000,
DSI had over $5.0 billion in assets under management. Although DSI has been in
the investment advisory business since 1988, it has not previously advised
mutual funds.


PaineWebber Incorporated is wholly owned by Paine Webber Group Inc., a publicly
owned financial services holding company.


PORTFOLIO MANAGER

DSI uses a team approach in its quantitative management of each fund's
portfolio.

ADVISORY FEES

The funds pay fees to Mitchell Hutchins for its advisory and administration
services at the following annual contract rates, expressed as a percentage of a
fund's average daily net assets.


Enhanced S&P 500 Fund..............          0.40%


Enhanced Nasdaq-100 Fund...........          0.75%



OTHER INFORMATION

The funds have received an exemptive order from the SEC that permits the board
to appoint and replace sub-advisers and to amend sub-advisory contracts without
obtaining shareholder approval.


                                       18
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund

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

ENHANCED S&P 500 FUND - ADDITIONAL INFORMATION ABOUT DSI

Performance information relating to DSI's proprietary enhanced S&P 500 strategy
and the S&P 500 Index is set forth below. There is no comparable prior account
performance for Enhanced Nasdaq-100 Fund.

Although Enhanced S&P 500 Fund is new and has no performance information to
include in this prospectus, DSI will adhere to its proprietary enhanced S&P 500
strategy in selecting the fund's investments. The composite performance results
for all private accounts with discretionary authority managed by DSI using this
strategy since October 1, 1996 are provided in the bar chart and table below.
These returns assume that all dividends have been reinvested. Because the
private accounts and Enhanced S&P 500 Fund invest primarily in stocks included
in the S&P 500 Index, returns for the S&P 500 Index also are shown. The S&P 500
Index is an unmanaged index of equity securities that is a measure of the U.S.
stock market performance While the total returns for the S&P 500 Index reflect
the reinvestment of dividends, they do not reflect any sales charges or
expenses, nor do they reflect transaction costs.

THIS PERFORMANCE INFORMATION DOES NOT REPRESENT HISTORICAL PERFORMANCE OF
ENHANCED S&P 500 FUND, SHOULD NOT BE CONSIDERED A SUBSTITUTE FOR THE FUND'S
PERFORMANCE AND SHOULD NOT BE INTERPRETED AS PREDICTING THE FUND'S FUTURE
PERFORMANCE. The private accounts have investment objectives, policies and
investment strategies that are substantially similar to those of the fund.
However, private accounts are not subject to certain investment and tax law
limitations that are imposed on registered investment companies. These
limitations are applicable to the fund and could cause its performance to be
lower than that of similarly managed private accounts.

The performance information used in the following tables was obtained from the
records maintained by DSI and adjusted by Mitchell Hutchins to reflect the
estimated fees and expenses of Enhanced S&P 500 Fund.

Plot Points for Bar Chart Showing Composite Annual Total Returns of Private
Accounts Managed with DSI Enhanced S&P 500 Strategy and Annual Total Returns of
S&P 500 Index


         Year       DSI Composite Annual Total Returns   Annual Total Returns of
     (as of 12/31)         of Similar Accounts*               S&P 500 Index
     -------------         --------------------               -------------
          1997                     34.46%                     33.35%
          1998                     29.40%                     28.58%
          1999                     20.14%                     21.04%

*   The bar chart shows the effect on the Composite Annual Returns of Similar
Accounts of the estimated annual expenses a Class A shareholder is expected to
pay each year. The returns for the other classes of shares offered by the fund
would differ because those classes do not have the same expenses. The bar chart
does not reflect the effect of sales charges. If it did, the total returns shown
would be lower.

Table Showing Composite Average Annual Total Returns of Private Accounts Managed
with DSI Enhanced S&P 500 Strategy (adjusted to show the maximum sales load and
estimated annual expenses of each class of shares) and Average Annual Total
Returns of S&P 500 Index**


<TABLE>
<CAPTION>
 DSI Composite Average Annual
Total Returns of Similar Accounts
        as of 12/31/99                 Class A        Class B     Class C      Class Y     S&P 500 Index
                                       -------        -------     -------      -------     -------------
<S>                                     <C>            <C>         <C>          <C>               <C>
One Year..........................      16.55%         16.67%      19.04%       20.44%            21.04%

Life  (since 10/1/96).............      27.44%         27.78%      28.11%       28.93%            28.30%
</TABLE>

**    The composite average annual total returns in the table reflects both
maximum sales  charges for the fund's Class A, B and C shares and the  estimated
annual expenses the shareholders of Class A, B, C and Y shares are expected to
pay each year.


                                       19
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund

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

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

DIVIDENDS

The funds normally declare and pay dividends, if any, annually.

Classes with higher expenses are expected to have lower dividends. For example,
Class B and Class C shares are expected to have the lowest dividends of any
class of the fund's shares, while Class Y shares are expected to have the
highest.

You will receive dividends in additional shares of the same class unless you
elect to receive them in cash. Contact your Financial Advisor at PaineWebber or
one of its correspondent firms if you prefer to receive dividends in cash.


TAXES

The dividends that you receive from the funds generally are subject to federal
income tax regardless of whether you receive them in additional fund shares or
in cash. If you hold fund shares through a tax-exempt account or plan, such as
an IRA or 401(k) plan, dividends on your shares generally will not be subject to
tax.

When you sell fund shares, you generally will be subject to federal income tax
on any gain you realize. If you exchange a fund's shares for shares of another
PaineWebber mutual fund, the transaction will be treated as a sale of the first
fund's shares, and any gain will be subject to federal income tax.

Each fund expects that its dividends will be comprised primarily of capital gain
distributions. The distribution of capital gains will be taxed at a lower rate
than ordinary income if the fund held the assets that generated the gains for
more than 12 months. Each fund will tell you how you should treat its dividends
for tax purposes.




                                       20
<PAGE>


                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund

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

                                    APPENDIX



ADDITIONAL INFORMATION CONCERNING THE S&P 500 INDEX. Enhanced S&P 500 Fund is
not sponsored, endorsed, sold or promoted by Standard & Poor's, a division of
The McGraw-Hill Companies, Inc. ("S&P"). S&P makes no representation or
warranty, express or implied, to the shareholders of the fund or any member of
the public regarding the advisability of investing in securities generally or in
the fund particularly or the ability of the S&P 500 Index to track general stock
market performance. S&P's only relationship to Mitchell Hutchins or the fund is
the licensing of certain trademarks and trade names of S&P and the S&P 500
Index, which is determined, composed, and calculated by S&P without regard to
Mitchell Hutchins or the fund. S&P has no obligation to take the needs of
Mitchell Hutchins or the shareholders of the fund into consideration in
determining, composing or calculating the S&P 500 Index. S&P is not responsible
for and has not participated in the timing of the issuance or sale of the fund's
shares or the determination or calculation of the equation by which shares of
the fund are priced or converted into cash. S&P has no obligation or liability
in connection with the administration of the fund or the marketing or sale of
the fund's shares.

S&P DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE S&P 500 INDEX
OR ANY DATA INCLUDED THEREIN, AND S&P SHALL HAVE NO LIABILITY FOR ANY ERRORS,
OMISSIONS OR INTERRUPTIONS THEREIN. S&P MAKES NO WARRANTY, EXPRESS OR IMPLIED,
AS TO RESULTS TO BE OBTAINED BY THE FUND OR ITS SHAREHOLDERS OR ANY OTHER PERSON
OR ENTITY FROM THE USE OF THE S&P 500 INDEX OR ANY DATA INCLUDED THEREIN. S&P
MAKES NO EXPRESS OR IMPLIED WARRANTIES AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE
S&P 500 INDEX OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE
FOREGOING, IN NO EVENT SHALL S&P HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE,
INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF
THE POSSIBILITY OF SUCH DAMAGES.


ADDITIONAL INFORMATION CONCERNING THE NASDAQ-100 INDEX. Enhanced Nasdaq-100 Fund
is not sponsored, endorsed, sold or promoted by The Nasdaq Stock Market, Inc.
(including its affiliates) (Nasdaq, with its affiliates, are referred to as the
CORPORATIONS). The Corporations have not passed on the legality or suitability
of, or the accuracy or adequacy of descriptions and disclosures relating to, the
fund. The Corporations make no representation or warranty, express or implied,
to the shareholders of the fund or any member of the public regarding the
advisability of investing in securities generally or in the fund particularly,
or the ability of the Nasdaq-100 Index(R) to track general stock market
performance. The Corporations' only relationship to the fund or Mitchell
Hutchins is in the licensing of the Nasdaq-100(R), Nasdaq-100 Index(R), and
Nasdaq(R) trademarks or service marks, and certain trade names of the
Corporations and the use of the Nasdaq-100 Index(R) which is determined,
composed and calculated by Nasdaq without regard to the fund or Mitchell
Hutchins. Nasdaq has no obligation to take the needs of Mitchell Hutchins or the
shareholders of the fund into consideration in determining, composing or
calculating the Nasdaq-100 Index(R). The Corporations are not responsible for
and have not participated in the timing of the issuance or sale of the fund's
shares or the determination or calculation of the equation by which shares of
the fund are priced or converted into cash. The Corporations have no liability
in connection with the administration, marketing or trading of the fund's
shares.

THE CORPORATIONS DO NOT GUARANTEE THE ACCURACY AND/OR UNINTERRUPTED CALCULATION
OF THE NASDAQ-100 INDEX(R) OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE
NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY MITCHELL
HUTCHINS, THE SHAREHOLDERS OF THE FUND OR ANY OTHER PERSON OR ENTITY FROM THE
USE OF THE NASDAQ-100 INDEX(R) OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS
MAKE NO EXPRESS OR IMPLIES WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE
NASDAQ-100 INDEX(R) OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE
FOREGOING, IN NO EVENT SHALL THE CORPORATIONS HAVE ANY LIABILITY FOR ANY LOST
PROFITS OR SPECIAL, INCIDENTAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES,
EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.




                                       21
<PAGE>

                        PaineWebber Enhanced S&P 500 Fund
                      PaineWebber Enhanced Nasdaq-100 Fund











If you want more information about the funds, the following document is
available free upon request:


STATEMENT OF ADDITIONAL INFORMATION (SAI)

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

You may discuss your questions about the funds by contacting your PaineWebber
Financial Advisor. You may obtain free copies of the SAI by contacting the funds
directly at 1-800-647-1568.

You may review and copy information about the funds, including the SAI, at the
Public Reference Room of the Securities and Exchange Commission. You may obtain
information about the operations of the SEC's Public Reference Room by calling
the SEC at 1-202-942-8090. You can get text-only copies of reports and other
information about the funds:

o   For a fee, by electronic request at [email protected] or by writing the
    SEC's Public Reference Room, Washington, D.C.  20549-0102; or

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





















Mitchell Hutchins Securities Trust
  -  PaineWebber Enhanced S&P 500 Fund
  -  PaineWebber Enhanced Nasdaq-100 Fund
Investment Company Act File No. 811-09745


(C) 2000 PaineWebber Incorporated.  All rights reserved.




<PAGE>


THE INFORMATION IN THE PRELIMINARY  PROSPECTUS AND THIS PRELIMINARY STATEMENT
OF ADDITIONAL INFORMATION IS NOT COMPLETE AND MAY BE CHANGED. WE MAY NOT SELL
THESE SECURITIES  UNTIL THE REGISTRATION  STATEMENT FILED WITH THE SECURITIES
AND EXCHANGE  COMMISSION  BECOMES EFFECTIVE.  THE PRELIMINARY  PROSPECTUS AND
THIS PRELIMINARY STATEMENT OF ADDITIONAL INFORMATION ARE NOT AN OFFER TO SELL
THESE  SECURITIES AND ARE NOT SOLICITING AN OFFER TO BUY THESE  SECURITIES IN
ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.


                        PAINEWEBBER ENHANCED S&P 500 FUND
                      PAINEWEBBER ENHANCED NASDAQ-100 FUND

                               51 WEST 52ND STREET
                          NEW YORK, NEW YORK 10019-6114


                                   PRELIMINARY
                       STATEMENT OF ADDITIONAL INFORMATION
                              Subject to Completion


      PaineWebber  Enhanced S&P 500 Fund is a diversified  series of Mitchell
Hutchins Securities Trust ("Trust") and PaineWebber  Enhanced Nasdaq-100 Fund
is a  non-diversified  series of the  Trust.  The  Trust is a  professionally
managed, open-end management investment company organized as a Delaware
business trust.


      The investment adviser,  administrator and distributor for each fund is
Mitchell Hutchins Asset Management Inc. ("Mitchell Hutchins"), a wholly owned
asset management subsidiary of PaineWebber Incorporated  ("PaineWebber").  As
distributor  for the funds,  Mitchell  Hutchins has appointed  PaineWebber to
serve as the exclusive dealer for the sale of fund shares.  DSI International
Management,  Inc.  ("DSI" or  "sub-adviser")  serves as sub-adviser  for each
fund.


      This SAI is not a  prospectus  and  should be read only in  conjunction
with each  fund's  current  Prospectus,  dated  March , 2000.  A copy of each
Prospectus may be obtained by calling any  PaineWebber  Financial  Advisor or
correspondent firm or by calling toll-free 1-800-647-1568.  This SAI is dated
March , 2000.




                          TABLE OF CONTENTS
                                                                       PAGE
                                                                       ----

The Funds and Their Investment Policies............................      2
The Funds' Investments, Related Risks and Limitations..............      3
Strategies Using Derivative Instruments............................      9


Organization; Trustees and Officers; Principal Holders and              15
   Management Ownership of Securities..............................
Investment Advisory, Administration and Distribution Arrangements..     21
Portfolio Transactions.............................................     25
Reduced Sales Charges, Additional Exchange and Redemption               27
   Information and Other Services..................................
Conversion of Class B Shares.......................................     32
Valuation of Shares................................................     33
Performance Information............................................     33
Taxes..............................................................     35
Other Information..................................................     38
Financial Statements...............................................     40



<PAGE>


                     THE FUNDS AND THEIR INVESTMENT POLICIES

      Neither 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.


      ENHANCED S&P 500 FUND has an  investment  objective of higher total return
over the long term than the S&P 500 Index.  There can be no  assurance  that the
fund will  achieve its  objective.  The fund seeks to achieve its  objective  by
investing primarily in a selection of common stocks that are included in the S&P
500  Index  and  weights  its  holdings  of  individual   stocks  based  on  its
sub-adviser's  proprietary enhanced S&P 500 strategy. The fund expects to invest
in approximately 250 to 400 stocks.  Relative to the stock weightings in the S&P
500 Index,  the fund  overweights  stocks  that the model ranks  positively  and
underweights stocks that the model ranks negatively.  Generally,  the fund gives
stocks with a neutral ranking the same weight as in the Index.

      The fund seeks to control  the risk of its  portfolio  by  maintaining  an
overall  close  correlation  of at least 95%  between  its  performance  and the
performance  of the S&P 500 Index  over time,  with a  relatively  low  tracking
error.  To  maintain  this close  correlation,  the fund gives each stock in its
portfolio  a  weighting  that is close to the S&P 500 Index  weighting  and,  if
necessary,  readjusts the weighting when it rebalances  the portfolio.  The fund
also considers relative industry sector weighting and market capitalization.


      DSI monitors the fund's performance relative to the S&P 500 Index at least
weekly.  At least monthly,  DSI reviews the fund's stock holdings and rebalances
the fund's  portfolio by increasing  the  weightings of the stocks that are more
highly  ranked by its model and  reducing  the  weightings  of the lower  ranked
stocks.  If  appropriate,  DSI also buys or sells stocks for the fund to reflect
the revised rankings.


      Under  normal  circumstances,  the fund  invests at least 65% of its total
assets in  common  stocks  that are  included  in the S&P 500 Index and  usually
invests  a higher  percentage  of its  total  assets  in these  securities.  For
liquidity  and cash  management  purposes,  the fund may invest up to 35% of its
total assets in short-term  investment grade bonds and money market instruments,
although  it expects  these  investments  usually to  represent  a much  smaller
portion  of its total  assets.  The fund may  invest in U.S.  dollar-denominated
foreign  securities  that are  included  in the S&P 500 Index and traded on U.S.
exchanges or in the U.S. over-the-counter market.


      The fund may invest up to 15% of its net assets in illiquid securities. It
may  purchase  securities  on a  when-issued  basis  and  may  purchase  or sell
securities for delayed delivery.  The fund may lend its portfolio  securities to
qualified  broker-dealers or institutional  investors in an amount up to 33 1/3%
of its assets.  The fund may borrow money for temporary or emergency purposes in
an amount  up to 33 1/3 % of its  total  assets,  including  reverse  repurchase
agreements. The fund also may invest in securities of other investment companies
and may sell securities short "against the box."


      ENHANCED  NASDAQ-100  FUND has an  investment  objective  of higher  total
return over the long term than the Nasdaq-100  Index.  There can be no assurance
that the  fund  will  achieve  its  objective.  The fund  seeks to  achieve  its
objective by investing  primarily in the common  stocks that are included in the
Nasdaq-100  Index and weighting  its holdings of individual  stocks based on its
sub-adviser's  proprietary  enhanced  Nasdaq-100  strategy.  The fund expects to
invest in a majority  of the stocks in the  Nasdaq-100  Index.  Relative  to the
stock weightings in the Nasdaq-100  Index, the fund overweights  stocks that the
model ranks positively and underweights  stocks that the model ranks negatively.
Generally,  the fund gives  stocks with a neutral  ranking the same weight as in
the Index.

      The fund seeks to  control  the risk of its  portfolio  by  maintaining  a
general  correlation of at least 90% between its performance and the performance
of the  Nasdaq-100  Index over time,  with a relatively low tracking  error.  To
maintain this general correlation,  the fund gives each stock in its portfolio a
weighting  that is close to the  Nasdaq-100  Index  weighting and, if necessary,
readjusts  the  weighting  when it  rebalances  the  portfolio.  The  fund  also
considers relative industry sector weighting and market capitalization.



                                       2
<PAGE>



      DSI monitors the fund's  performance  relative to the Nasdaq-100  Index at
least  weekly.  At least  monthly,  DSI reviews the fund's  stock  holdings  and
rebalances the fund's  portfolio by increasing the weightings of the stocks that
are more highly  ranked by its model and  reducing the  weightings  of the lower
ranked  stocks.  If  appropriate,  DSI also buys or sells stocks for the fund to
reflect  the  revised  rankings.  To the  extent  that the  Nasdaq-100  Index is
concentrated in a particular  industry sector,  the fund expects that its assets
also would be concentrated in that sector.  The fund also expects to invest more
than 5% of its  total  assets  in the  stocks of  specific  companies  as needed
generally to follow the weightings of those stocks in the Nasdaq-100  Index. The
fund  would not do so,  however,  if the  investment  would  cause it to fail to
qualify as a regulated investment company under the Internal Revenue Code.

      Under  normal  circumstances,  the fund  invests at least 65% of its total
assets in common  stocks that are included in the  Nasdaq-100  Index and usually
invests  a higher  percentage  of its  total  assets  in these  securities.  For
liquidity  and cash  management  purposes,  the fund may invest up to 35% of its
total assets in short-term  investment grade bonds and money market instruments,
although  it expects  these  investments  usually to  represent  a much  smaller
portion  of its total  assets.  The fund may  invest in U.S.  dollar-denominated
foreign  securities that are included in the Nasdaq-100 Index and traded on U.S.
exchanges or in the U.S. over-the-counter market.

      The fund may invest up to 15% of its net assets in illiquid securities. It
may  purchase  securities  on a  when-issued  basis  and  may  purchase  or sell
securities for delayed delivery.  The fund may lend its portfolio  securities to
qualified  broker-dealers or institutional  investors in an amount up to 33 1/3%
of its assets.  The fund may borrow money for temporary or emergency purposes in
an  amount  up to 33 1/3% of its  total  assets,  including  reverse  repurchase
agreements. The fund also may invest in securities of other investment companies
and may sell securities short "against the box."


              THE FUNDS' INVESTMENTS, RELATED RISKS AND LIMITATIONS

      The following  supplements the information contained in the Prospectus and
above concerning the funds' investments,  related risks and limitations.  Except
as otherwise indicated in the Prospectus or this SAI, the funds have established
no policy  limitations  on their  ability to use the  investments  or techniques
discussed in these documents.


      EQUITY SECURITIES. Equity securities include common stocks, most preferred
stocks and securities that are  convertible  into them,  including  common stock
purchase warrants and rights,  equity interests in trusts,  partnerships,  joint
ventures or similar enterprises and depositary receipts. Common stocks, the most
familiar type, represent an equity (ownership) interest in a corporation.

      Preferred  stock has  certain  fixed  income  features,  like a bond,  but
actually it is equity that is senior to a company's  common  stock.  Convertible
bonds  are  fixed  and  variable  rate  debt  obligations,   which  may  include
debentures,  notes  and  similar  securities,  that  may be  converted  into  or
exchanged  for a  prescribed  amount of common  stock of the same or a different
issuer  within a  particular  period of time at a  specified  price or  formula.
Preferred  stock also may be  converted  into or  exchanged  for  common  stock.
Depositary  receipts  typically  are  issued  by banks or  trust  companies  and
evidence ownership of underlying equity securities.


      While  past  performance   does  not  guarantee  future  results,   equity
securities historically have provided the greatest long-term growth potential in
a company.  However, their prices generally fluctuate more than other securities
and reflect changes in a company's financial condition and in overall market and
economic  conditions.  Common stocks generally represent the riskiest investment
in a  company.  It is  possible  that a fund may  experience  a  substantial  or
complete loss on an individual equity investment.

      INVESTING   IN   FOREIGN   SECURITIES.   A  fund   may   invest   in  U.S.
dollar-denominated  equity  securities  of  foreign  issuers  that are traded on
recognized U.S. exchanges or in the U.S.  over-the-counter market. Securities of
foreign issuers may not be registered with the Securities and Exchange


                                       3
<PAGE>


Commission ("SEC"),  and the issuers thereof may not be subject to its reporting
requirements.  Accordingly,  there may be less  publicly  available  information
concerning  foreign  issuers  of  securities  held by a fund  than is  available
concerning  U.S.  companies.  Foreign  companies  are not  generally  subject to
uniform  accounting,  auditing  and  financial  reporting  standards or to other
regulatory requirements comparable to those applicable to U.S. companies.

      A fund may invest in foreign securities by purchasing  American Depositary
Receipts  ("ADRs").  ADRs are receipts  typically issued by a U.S. bank or trust
company evidencing ownership of the underlying securities. They generally are in
registered form, are denominated in U.S. dollars and are designed for use in the
U.S. securities markets. For purposes of each fund's investment  policies,  ADRs
are deemed to have the same  classification  as the underlying  securities  they
represent.  Thus, an ADR representing  ownership of common stock will be treated
as common stock.

      ADRs are publicly  traded on exchanges or  over-the-counter  in the United
States and are issued through  "sponsored" or "unsponsored"  arrangements.  In a
sponsored ADR arrangement, the foreign issuer assumes the obligation to pay some
or all of the  depositary's  transaction  fees,  whereas  under  an  unsponsored
arrangement,  the foreign  issuer assumes no  obligations  and the  depositary's
transaction  fees  are paid  directly  by the ADR  holders.  In  addition,  less
information  is available in the United  States  about an  unsponsored  ADR than
about a sponsored ADR.

      Investment  income on certain  foreign  securities  in which the funds may
invest may be subject to foreign  withholding  or other taxes that could  reduce
the return on these  securities.  Tax  treaties  between  the United  States and
foreign countries,  however, may reduce or eliminate the amount of foreign taxes
to which the funds would be subject.


      ILLIQUID SECURITIES.  The term "illiquid securities" means securities that
cannot be disposed of within  seven days in the  ordinary  course of business at
approximately the amount at which a fund has valued the securities and includes,
among other things, purchased  over-the-counter  options,  repurchase agreements
maturing  in more than seven  days and  restricted  securities  other than those
Mitchell  Hutchins or the  sub-adviser  has  determined  are liquid  pursuant to
guidelines  established  by the  Trust's  board.  The  assets  used as cover for
over-the-counter  options  written by a fund will be considered  illiquid unless
the  over-the-counter  options are sold to qualified  dealers who agree that the
fund may repurchase any over-the-counter options it writes at a maximum price to
be calculated by a formula set forth in the option agreements.  The cover for an
over-the-counter  option written  subject to this procedure  would be considered
illiquid only to the extent that the maximum  repurchase price under the formula
exceeds the  intrinsic  value of the  option.  A fund may not be able to readily
liquidate  illiquid  securities  and  may  have  to sell  other  investments  if
necessary to raise cash to meet its obligations.  The lack of a liquid secondary
market for illiquid securities may make it more difficult for a fund to assign a
value to those  securities for purposes of valuing its portfolio and calculating
its net asset value.

      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 Securities Act registration statement 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 under the Securities Act, which  establishes a "safe harbor"
from the registration requirements of that Act for resales of certain securities
to qualified  institutional  buyers.  Such markets include automated systems for
the trading, clearance and settlement of unregistered securities


                                       4
<PAGE>


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 a 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 and the  sub-adviser  pursuant to  guidelines
approved by the board. Mitchell Hutchins and the sub-adviser take into account a
number of factors in reaching liquidity  decisions,  including (1) the frequency
of trades for the  security,  (2) the number of dealers that make quotes for the
security, (3) the number of dealers that have undertaken to make a market in the
security, (4) the number of other potential purchasers and (5) 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).  Mitchell
Hutchins and the sub-adviser  monitor the liquidity of restricted  securities in
each fund's portfolio and report periodically on such decisions to the board.


      Mitchell  Hutchins and the  sub-adviser  also monitor each fund's  overall
holdings of illiquid  securities.  If a fund's  holdings of illiquid  securities
comes to exceed its  limitation on  investments  in illiquid  securities for any
reason,  such as a security  ceasing to qualify as liquid,  changes in  relative
market  values of portfolio  securities  or  shareholder  redemptions,  Mitchell
Hutchins  and the  sub-adviser  will  consider  what action would be in the best
interests of the fund and its shareholders.  Such action may include engaging in
an orderly  disposition of securities to reduce the fund's  holdings of illiquid
securities.  However, a fund is not required  immediately to dispose of illiquid
securities under the  circumstances  and Mitchell  Hutchins and the sub-adviser,
with the  concurrence of the fund's board,  may determine that it is in the best
interests  of the fund and its  shareholders  to continue  to hold the  illiquid
securities.


      MONEY MARKET  INSTRUMENTS.  Money market  instruments  in which a fund may
invest include U.S. Treasury bills and other obligations issued or guaranteed as
to  interest   and   principal  by  the  U.S.   government,   its  agencies  and
instrumentalities;  obligations of U.S. banks (including certificates of deposit
and bankers' acceptances);  interest-bearing savings deposits in U.S. commercial
banks and savings associations;  commercial paper and other short-term corporate
obligations;   and  variable-  and   floating-rate   securities  and  repurchase
agreements.  In addition,  a fund may hold cash and may invest in  participation
interests in the money market  securities  mentioned above to the extent that it
is permitted to invest in money market instruments.

      U.S.  GOVERNMENT  SECURITIES.  Government  securities  in which a fund may
invest include direct obligations of the U.S. Treasury and obligations issued or
guaranteed by the U.S.  government  or one of its agencies or  instrumentalities
(collectively,  "U.S.  government  securities").  Direct obligations of the U.S.
Treasury  include a variety of securities  that differ in their interest  rates,
maturities and dates of issuance.  Among the U.S. government securities that may
be held by a fund are  instruments  that are  supported  by the full  faith  and
credit of the United  States and  securities  that are  supported  primarily  or
solely by the creditworthiness of the government-related issuer.

      REPURCHASE  AGREEMENTS.  Repurchase agreements are transactions in which a
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.
A  fund  maintains  custody  of  the  underlying   obligations  prior  to  their
repurchase,   either  through  its  regular   custodian  or  through  a  special
"tri-party" custodian or 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.


                                       5
<PAGE>


      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. 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 a 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. Such agreements are considered to be borrowings and may
be  entered  into  only  for  temporary  purposes.  While a  reverse  repurchase
agreement is outstanding, a 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, Related Risks and Limitations -- Segregated Accounts."

      Reverse  repurchase  agreements  involve  the risk  that the  buyer of the
securities sold by a 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 a 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.

      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 portfolio  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.  Each fund may reinvest any cash  collateral in money market
investments or other short-term liquid  investments,  including other investment
companies.  A fund also may  reinvest  cash  collateral  in  private  investment
vehicles  similar to money  market  funds,  including  one  managed by  Mitchell
Hutchins.   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.  Each 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 dividends,
interest or other  distributions  on the securities  loaned.  A 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 that fund's 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  each  fund.  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 fund's  securities
lending program.

      SHORT  SALES  "AGAINST  THE BOX." Each fund may  engage in short  sales of
securities  it owns  or has the  right  to  acquire  at no  added  cost  through
conversion  or exchange of other  securities  it owns (short sales  "against the
box").  To make delivery to the purchaser in a short sale, the executing  broker
borrows  the  securities  being  sold  short on behalf of a fund,  and a fund is
obligated  to replace the  securities  borrowed at a date in the future.  When a
fund sells short, it establishes a margin account with the broker  effecting the
short  sale  and  deposits  collateral  with the  broker.  In  addition,  a fund
maintains with its custodian, in a segregated account, the securities that could
be used to cover the short sale. Each fund incurs transaction  costs,  including
interest  expense,  in connection  with opening,  maintaining  and closing short
sales against the box.

      A fund might make a short sale "against the box" to hedge  against  market
risks when the  sub-adviser  believes  that the price of a security may decline,
thereby  causing a decline  in the  value of a  security  owned by the fund or a
security  convertible  into or exchangeable for a security owned by the fund. In
such case,  any loss in a fund's  long  position  after the short sale should be
reduced by a gain in the short position. Conversely, any gain


                                       6
<PAGE>


in the long  position  should be  reduced by a loss in the short  position.  The
extent to which gains or losses in the long  position  are  reduced  will depend
upon  the  amount  of the  securities  sold  short  relative  to the  amount  of
securities a fund owns,  either directly or indirectly,  and in the case where a
fund owns convertible securities,  changes in the investment value or conversion
premiums of such securities.

      WHEN-ISSUED  AND  DELAYED  DELIVERY  SECURITIES.  Each  fund 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 a fund 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 fund on a  when-issued  or delayed  delivery  basis may
result in the fund's  incurring or missing an opportunity to make an alternative
investment.  Depending on market  conditions,  a fund's  when-issued and delayed
delivery  purchase  commitments  could cause its net asset value per share to be
more volatile, because such securities may increase the amount by which a fund's
total assets, including the value of when-issued and delayed delivery securities
held by that fund, exceeds its net assets.

      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 the  sub-adviser  deems it  advantageous to do
so, which may result in a gain or loss to the fund.

      COUNTERPARTIES.  A fund may be exposed to the risk of financial failure or
insolvency  of another  party.  To help lessen those risks,  Mitchell  Hutchins,
subject to the  supervision  of each fund's  board,  monitors and  evaluates the
creditworthiness of the parties with which the fund does business.

      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 and 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  a  fund's  obligation  or  commitment  under  such
transactions.   As   described   below  under   "Strategies   Using   Derivative
Instruments,"  segregated  accounts  may also be  required  in  connection  with
certain transactions involving options and futures.

      INVESTMENTS  IN  OTHER  INVESTMENT  COMPANIES.  Each  fund may  invest  in
securities  of other  investment  companies,  subject to  limitations  under the
Investment  Company Act of 1940, as amended  ("Investment  Company Act").  Among
other  things,   these  limitations   currently   restrict  a  fund's  aggregate
investments  in other  investment  companies  to no more  than 10% of its  total
assets.  A fund's  reinvestment of cash collateral from securities  lending in a
private  investment  vehicle  similar  to a money  market  fund and  managed  by
Mitchell  Hutchins  is not  subject  to this  restriction.  The  shares of other
investment  companies are subject to the  management  fees and other expenses of
those  companies,  and the  purchase  of  shares  of some  investment  companies
requires the payment of sales loads and sometimes substantial premiums above the
value of such companies'  portfolio  securities.  At the same time, a fund would
continue to pay its own  management  fees and  expenses  with respect to all its
investments, including the securities of other investment companies.

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.  With regard to the  borrowings
limitation  in  fundamental  limitation  (2),  each  fund will  comply  with the
applicable restrictions of Section 18 of the Investment Company Act.


                                       7
<PAGE>


      Each fund will not:

      (1) 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 and provided that the
fund will invest 25% or more of its total assets in securities of issuers in the
same  industry if  necessary  to  replicate  the  weighting  of that  particular
industry in its benchmark index.

      (2) 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.

      (3) 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.

      (4) 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.

      (5) 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.

      (6) 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.

      In addition, Enhanced S&P 500 Fund will not:

      (7) 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  limitation:  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.

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


                                      8
<PAGE>


      Each fund will not:

      (1)  invest more than 15% of its net assets in illiquid securities.

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

      (3) 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.

      (4) 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.

      (5)  purchase  securities  of other  investment  companies,  except to the
extent  permitted  by the  Investment  Company  Act or  under  the  terms  of an
exemptive  order  granted by the SEC 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.

                   STRATEGIES USING DERIVATIVE INSTRUMENTS

      GENERAL DESCRIPTION OF DERIVATIVE INSTRUMENTS. Each fund may use a variety
of financial instruments ("Derivative Instruments"),  including certain options,
futures contracts  (sometimes referred to as "futures"),  and options on futures
contracts.  A fund may enter into  transactions  involving  one or more types of
Derivative  Instruments  under which the full value of its portfolio is at risk.
Under normal  circumstances,  however,  a fund's use of these  instruments  will
place at risk a much smaller  portion of its assets.  The particular  Derivative
Instruments that may be used by the funds are described below.

      A fund might not use any Derivative  Instruments or derivative strategies,
and there can be no  assurance  that using any  strategy  will  succeed.  If the
sub-adviser  is incorrect in its judgment on market  values,  interest  rates or
other economic factors in using a Derivative  Instrument or strategy, a fund may
have lower net income and a net loss on the investment.

      OPTIONS  ON EQUITY  AND DEBT  SECURITIES.  A call  option is a  short-term
contract pursuant to which the purchaser of the option, in return for a premium,
has the right to buy the security  underlying the option at a specified price at
any  time  during  the  term  of the  option  or at  specified  times  or at the
expiration of the option,  depending on the type of option involved.  The writer
of the call option, who receives the premium, has the obligation,  upon exercise
of the option during the option term, to deliver the underlying security against
payment of the exercise price. A put option is a similar contract that gives its
purchaser, in return for a premium, the right to sell the underlying security at
a  specified  price  during  the  option  term or at  specified  times or at the
expiration of the option,  depending on the type of option involved.  The writer
of the put option, who receives the premium,  has the obligation,  upon exercise
of the option  during the option  term,  to buy the  underlying  security at the
exercise price.

      OPTIONS ON SECURITIES  INDICES. A securities index assigns relative values
to the  securities  included  in the index and  fluctuates  with  changes in the
market values of those  securities.  A securities  index option  operates in the
same way as a more  traditional  securities  option,  except that  exercise of a
securities  index  option is  effected  with cash  payment  and does not involve
delivery of securities.  Thus, upon exercise of a securities  index option,  the
purchaser  will  realize,  and the  writer  will  pay,  an  amount  based on the
difference  between the exercise  price and the closing price of the  securities
index.

      SECURITIES INDEX FUTURES CONTRACTS. A securities index futures contract is
a  bilateral  agreement  pursuant to which one party  agrees to accept,  and the
other party agrees to make, delivery of an amount of cash equal to a


                                      9
<PAGE>


specified dollar amount times the difference  between the securities index value
at the close of  trading  of the  contract  and the  price at which the  futures
contract is originally struck. No physical delivery of the securities comprising
the index is made.  Generally,  contracts are closed out prior to the expiration
date of the contract.

      INTEREST  RATE FUTURES  CONTRACTS.  Interest  rate futures  contracts  are
bilateral  agreements  pursuant to which one party agrees to make, and the other
party  agrees to accept,  delivery  of a  specified  type of debt  security at a
specified future time and at a specified price.  Although such futures contracts
by their terms call for actual  delivery or  acceptance of debt  securities,  in
most cases the contracts are closed out before the  settlement  date without the
making or taking of delivery.

      OPTIONS ON FUTURES CONTRACTS.  Options on futures contracts are similar to
options on  securities,  except that an option on a futures  contract  gives the
purchaser  the right,  in return  for the  premium,  to assume a  position  in a
futures  contract (a long position if the option is a call and a short  position
if the  option is a put),  rather  than to  purchase  or sell a  security,  at a
specified price at any time during the option term. Upon exercise of the option,
the  delivery  of the  futures  position  to the  holder of the  option  will be
accompanied by delivery of the accumulated balance that represents the amount by
which the market price of the futures contract  exceeds,  in the case of a call,
or is less than,  in the case of a put, the exercise  price of the option on the
future. The writer of an option, upon exercise,  will assume a short position in
the case of a call and a long position in the case of a put.

      GENERAL DESCRIPTION OF STRATEGIES USING DERIVATIVE INSTRUMENTS. A fund may
use Derivative  Instruments to simulate  investment in its benchmark index while
retaining a cash balance for management  purposes,  such as to provide liquidity
to meet  anticipated  shareholder  sales of fund  shares and for fund  operating
expenses.  As part of its use of  Derivative  Instruments  for  cash  management
purposes,  a fund may  attempt  to reduce the risk of  adverse  price  movements
("hedge") in the securities of its benchmark index while investing cash received
from investor purchases of fund shares or selling securities to meet shareholder
redemptions.  A fund may also use Derivative  Instruments to reduce  transaction
costs and to facilitate trading.

      Hedging strategies can be broadly  categorized as "short hedges" and "long
hedges." A short hedge is a purchase or sale of a Derivative Instrument intended
partially  or fully to  offset  potential  declines  in the value of one or more
investments  held in a fund's  portfolio.  Thus, in a short hedge a fund takes a
position  in a  Derivative  Instrument  whose  price is  expected to move in the
opposite  direction of the price of the investment being hedged.  For example, a
fund might  purchase a put option on a  security  to hedge  against a  potential
decline in the value of that  security.  If the price of the  security  declined
below the  exercise  price of the put,  a fund could  exercise  the put and thus
limit its loss below the  exercise  price to the premium  paid plus  transaction
costs. In the  alternative,  because the value of the put option can be expected
to increase as the value of the underlying  security  declines,  a fund might be
able to close out the put option and realize a gain to offset the decline in the
value of the security.

      Conversely,  a long hedge is a purchase or sale of a Derivative Instrument
intended  partially or fully to offset  potential  increases in the  acquisition
cost of one or more investments that a fund intends to acquire.  Thus, in a long
hedge,  a fund  takes a  position  in a  Derivative  Instrument  whose  price is
expected  to  move  in the  same  direction  as  the  price  of the  prospective
investment being hedged. For example, the fund might purchase a call option on a
security  it intends to  purchase  in order to hedge  against an increase in the
cost of the security.  If the price of the security increased above the exercise
price of the  call,  the fund  could  exercise  the  call  and  thus  limit  its
acquisition  cost to the exercise  price plus the premium  paid and  transaction
costs.  Alternatively,  the fund might be able to offset the price  increase  by
closing out an appreciated call option and realizing a gain.

      A fund may purchase and write (sell) straddles on securities or indices of
securities.  A  long  straddle  is a  combination  of a  call  and a put  option
purchased  on the same  security  or on the same  futures  contract,  where  the
exercise  price of the put is equal to the  exercise  price of the call.  A fund
might enter into a long  straddle when the  sub-adviser  believes it likely that
the prices of the securities will be more volatile during the term of the option
than the option pricing implies. A short straddle is a combination of a call and
a put written on the same security  where the exercise price of the put is equal
to the exercise price of the call. A fund might enter into a short straddle when
the  sub-adviser  believes it unlikely that the prices of the securities will be
as volatile during the term of the option as the option pricing implies.


                                     10
<PAGE>


      Derivative  Instruments on securities  generally are used to hedge against
price movements in one or more particular  securities positions that a fund owns
or intends to acquire.  Derivative  Instruments on stock  indices,  in contrast,
generally  are used to hedge  against  price  movements in broad  equity  market
sectors  in  which  a  fund  has  invested  or  expects  to  invest.  Derivative
Instruments on debt securities may be used to hedge either individual securities
or broad fixed income market sectors.

      Income strategies using Derivative  Instruments may include the writing of
covered options to obtain the related option premiums. Return or gain strategies
may  include  using  Derivative  Instruments  to  increase  or decrease a fund's
exposure to different  asset classes  without  buying or selling the  underlying
instruments.  A fund also may use derivatives to simulate full investment by the
fund while  maintaining a cash balance for fund management  purposes (such as to
provide  liquidity to meet anticipated  shareholder sales of fund shares and for
fund operating expenses).

      The use of Derivative  Instruments is subject to applicable regulations of
the SEC, the several  options and futures  exchanges  upon which they are traded
and the Commodity Futures Trading  Commission  ("CFTC").  In addition,  a fund's
ability to use Derivative Instruments may be limited by tax considerations.  See
"Taxes."

      In addition to the products,  strategies and risks  described below and in
each  fund's  Prospectus,   the  funds'  sub-adviser  may  discover   additional
opportunities  in  connection  with  Derivative  Instruments  and with  hedging,
income, return and gain strategies. These new opportunities may become available
as regulatory authorities broaden the range of permitted transactions and as new
Derivative  Instruments  and techniques are developed.  The  sub-adviser may use
these  opportunities  for a fund to the extent that they are  consistent  with a
fund's  investment  objective and permitted by its  investment  limitations  and
applicable  regulatory  authorities.  The funds'  Prospectus or this SAI will be
supplemented  to the extent that new products or techniques  involve  materially
different risks than those described below or in the Prospectus.

      SPECIAL  RISKS OF  STRATEGIES  USING  DERIVATIVE  INSTRUMENTS.  The use of
Derivative  Instruments involves special  considerations and risks, as described
below.  Risks pertaining to particular  Derivative  Instruments are described in
the sections that follow.

      (1) Successful use of most Derivative Instruments depends upon the ability
of a fund's investment  adviser to predict  movements of the overall  securities
and interest rate  markets,  which  requires  different  skills than  predicting
changes  in the  prices  of  individual  securities.  While the  sub-adviser  is
experienced in the use of Derivative Instruments, there can be no assurance that
any particular strategy adopted will succeed.

      (2) There might be imperfect correlation, or even no correlation,  between
price  movements  of  a  Derivative   Instrument  and  price  movements  of  the
investments  that are being  hedged.  For example,  if the value of a Derivative
Instrument  used in a short hedge increased by less than the decline in value of
the hedged investment,  the hedge would not be fully successful.  Such a lack of
correlation might occur due to factors affecting the markets in which Derivative
Instruments are traded,  rather than the value of the investments  being hedged.
The effectiveness of hedges using Derivative  Instruments on indices will depend
on the degree of  correlation  between  price  movements  in the index and price
movements in the securities being hedged.

      (3) Hedging strategies,  if successful,  can reduce risk of loss by wholly
or partially  offsetting the negative  effect of unfavorable  price movements in
the  investments  being  hedged.  However,  hedging  strategies  can also reduce
opportunity  for gain by  offsetting  the  positive  effect of  favorable  price
movements in the hedged investments. For example, if a fund entered into a short
hedge because the applicable investment adviser projected a decline in the price
of a security in that fund's portfolio, and the price of that security increased
instead,  the gain from that increase  might be wholly or partially  offset by a
decline in the price of the Derivative Instrument. Moreover, if the price of the
Derivative  Instrument  declined  by more than the  increase in the price of the
security,  a fund could  suffer a loss.  In either such case,  a fund would have
been in a better position had it not hedged at all.

      (4) As  described  below,  a fund might be required to maintain  assets as
"cover," maintain segregated accounts or make margin payments when it takes


                                     11
<PAGE>


positions in  Derivative  Instruments  involving  obligations  to third  parties
(I.E.,  Derivative  Instruments  other than purchased  options).  If a fund were
unable to close out its positions in such  Derivative  Instruments,  it might be
required to continue to maintain  such assets or accounts or make such  payments
until the positions expired or matured. These requirements might impair a fund's
ability to sell a  portfolio  security or make an  investment  at a time when it
would otherwise be favorable to do so, or require that the fund sell a portfolio
security at a disadvantageous  time. A fund's ability to close out a position in
a Derivative Instrument prior to expiration or maturity depends on the existence
of a liquid  secondary  market or, in the absence of such a market,  the ability
and  willingness of a counterparty  to enter into a transaction  closing out the
position.  Therefore,  there is no  assurance  that any hedging  position can be
closed out at a time and price that is favorable to a fund.

      COVER FOR STRATEGIES  USING  DERIVATIVE  INSTRUMENTS.  Transactions  using
Derivative  Instruments,  other  than  purchased  options,  expose  a fund to an
obligation to another  party.  A fund will not enter into any such  transactions
unless it owns either (1) an  offsetting  ("covered")  position in securities or
other options or futures contracts or (2) cash or liquid securities with a value
sufficient  at all times to cover its  potential  obligations  to the extent not
covered as  provided in (1) above.  Each fund will  comply  with SEC  guidelines
regarding  cover for such  transactions  and will, if the guidelines so require,
set aside cash or liquid  securities in a segregated  account with its custodian
in the prescribed amount.

      Assets used as cover or held in a segregated  account cannot be sold while
the position in the corresponding Derivative Instrument is open, unless they are
replaced  with similar  assets.  As a result,  committing  a large  portion of a
fund's  assets  to  cover  positions  or to  segregated  accounts  could  impede
portfolio  management or a fund's ability to meet  redemption  requests or other
current obligations.

      OPTIONS.  Each fund may  purchase put and call  options,  and write (sell)
covered put or call options on equity and debt securities and stock indices. The
purchase  of call  options may serve as a long  hedge,  and the  purchase of put
options  may serve as a short  hedge.  A fund may also use options to attempt to
enhance  return or realize  gains by  increasing  or reducing its exposure to an
asset class without  purchasing or selling the  underlying  securities.  Writing
covered put or call options can enable a fund to enhance income by reason of the
premiums paid by the  purchasers of such options.  Writing  covered call options
serves as a limited  short  hedge,  because  declines in the value of the hedged
investment would be offset to the extent of the premium received for writing the
option. However, if the security appreciates to a price higher than the exercise
price of the call option,  it can be expected  that the option will be exercised
and the  affected  fund will be  obligated to sell the security at less than its
market  value.  Writing  covered  put  options  serves as a limited  long hedge,
because  increases in the value of the hedged  investment would be offset to the
extent of the premium received for writing the option.  However, if the security
depreciates to a price lower than the exercise  price of the put option,  it can
be expected that the put option will be exercised and the fund will be obligated
to purchase the security at more than its market value.  The securities or other
assets  used as cover for  over-the-counter  options  written by a fund would be
considered  illiquid  to the extent  described  under "The  Funds'  Investments,
Related Risks and Limitations -- Illiquid Securities."

      The value of an option  position  will reflect,  among other  things,  the
current market value of the  underlying  investment,  the time  remaining  until
expiration,  the  relationship  of the exercise price to the market price of the
underlying  investment,  the  historical  price  volatility  of  the  underlying
investment and general market conditions. Options normally have expiration dates
of up to nine months. Generally, over-the-counter options on debt securities are
European-style  options.  This  means  that the  option  can  only be  exercised
immediately  prior to its  expiration.  This is in  contrast  to  American-style
options that may be exercised at any time. There are also other types of options
that may be exercised on certain specified dates before expiration. Options that
expire unexercised have no value.

      A fund may effectively  terminate its right or obligation  under an option
by entering into a closing  transaction.  For example,  a fund may terminate its
obligation  under a call or put  option  that it had  written by  purchasing  an
identical call or put option;  this is known as a closing purchase  transaction.
Conversely,  a fund may  terminate  a  position  in a put or call  option it had
purchased by writing an identical put or call option; this is known as a closing
sale tran action. Closing transactions permit a fund to realize profits or limit
losses on an option position prior to its exercise or expiration.


                                     12
<PAGE>


      The funds may purchase and write both exchange-traded and over-the-counter
options.   Currently,   many   options  on  equity   securities   (stocks)   are
exchange-traded.  Exchange  markets for options on debt securities exist but are
relatively   new,   and  these   instruments   are   primarily   traded  on  the
over-the-counter market. Exchange-traded options in the United States are issued
by a clear ng  organization  affiliated with the exchange on which the option is
listed which, in effect,  guarantees completion of every exchange-traded  option
transaction. In contrast,  over-the-counter options are contracts between a fund
and its  counterparty  (usually a securities  dealer or a bank) with no clearing
organization   guarantee.   Thus,   when  a  fund   purchases   or   writes   an
over-the-counter  option, it relies on the counterparty to make or take delivery
of the  underlying  investment  upon  exercise  of the  option.  Failure  by the
counterparty  to do so would result in the loss of any premium paid by a fund as
well as the loss of any expected benefit of the transaction.

      The funds' ability to establish and close out positions in exchange-traded
options  de ends  on the  existence  of a liquid  market.  The  funds  intend to
purchase or write only those exchange-traded  options for which there appears to
be a liquid  secondary  market.  However,  there can be no assurance that such a
market will exist at any particular time.  Closing  transactions can be made for
over-the-counter options only by negotiating directly with the counterparty,  or
by a transaction in the secondary market if any such market exists. Although the
funds will enter into over-the-counter options only with counterparties that are
expected to be capable of entering  into  closing  transactions  with the funds,
there  is no  assurance  that a fund  will  in fact  be  able  to  close  out an
over-the-counter  option position at a favorable  price prior to expiration.  In
the event of insolvency of the counterparty, a fund might be unable to close out
an over-the-counter option position at any time prior to its expiration.

      If a fund were unable to effect a closing transaction for an option it had
purchased,  it would have to  exercise  the option to realize  any  profit.  The
inability to enter into a closing purchase transaction for a covered put or call
option written by the a could cause  material  losses because that fund would be
unable to sell the  investment  used as cover for the written  option  until the
option expires or is exercised.

      A fund may  purchase and write put and call options on indices in much the
same manner as the more traditional  options  discussed above,  except the index
options may serve as a hedge against overall fluctuations in a securities market
(or market sector) rather than  anticipated  increases or decreases in the value
of a particular security.

      FUTURES. The funds may purchase and sell stock index futures contracts and
interest rate future  contracts.  A fund may also purchase put and call options,
and write  covered  put and call  options,  on futures in which it is allowed to
invest.  The  purchase  of futures or call  options  thereon can serve as a long
hedge,  and the sale of futures or the purchase of put options thereon can serve
as a short hedge. Writing covered call options on futures contracts can serve as
a limited short hedge, and writing covered put options on futures  contracts can
serve as a limited long hedge, using a strategy similar to that used for writing
covered  options on securities or indices.  In addition,  a fund may purchase or
sell  futures  contracts or purchase  options  thereon to increase or reduce its
exposure  to an  asset  class  without  purchasing  or  selling  the  underlying
securities, either as a hedge or to enhance return or realize gains.

      A fund may also write put options on futures  contracts  while at the same
time   purchasing   call  options  on  the  same  futures   contracts  in  order
synthetically  to create a long futures  contract  position.  Such options would
have the same strike  prices and  expiration  dates.  A fund will engage in this
strategy only when it is more  advantageous  to the fund than is purchasing  the
futures contract.

      No price is paid upon entering into a futures  contract.  Instead,  at the
inception  of a futures  contract a fund is required to deposit in a  segregated
account with its  custodian,  in the name of the futures broker through whom the
transaction was effected,  "initial margin"  consisting of cash,  obligations of
the United States or obligations  fully  guaranteed as to principal and interest
by the  United  States,  in an  amount  generally  equal  to 10% or  less of the
contract  value.  Margin must also be deposited  when writing a call option on a
futures contract, in accordance with applicable exchange rules. Unlike margin in
securities transactions, initial margin on futures


                                     13
<PAGE>


contracts  does not  represent  a  borrowing,  but  rather is in the nature of a
performance  bond  or  good-faith  deposit  that  is  returned  to a fund at the
termination  of  the  transaction  if  all  contractual  obligations  have  been
satisfied.  Under certain circumstances,  such as periods of high volatility,  a
fund may be required by an exchange to increase the level of its initial  margin
payment,  and initial margin  requirements  might be increased  generally in the
future by regulatory action.

      Subsequent  "variation  margin"  payments are made to and from the futures
broker daily as the value of the futures  position  varies,  a process  known as
"marking to market."  Variation  margin does not involve  borrowing,  but rather
represents  a daily  settlement  of a fund's  obligations  to or from a  futures
broker.  When a fund  purchases  an option on a future,  the  premium  paid plus
transaction costs is all that is at risk. In contrast,  when a fund purchases or
sells a futures contract or writes a call option thereon, it is subject to daily
variation  margin calls that could be  substantial in the event of adverse price
movements.  If a fund  has  insufficient  cash to meet  daily  variation  margin
requirements,  it might  need to sell  securities  at a time when such sales are
disadvantageous.

      Holders and writers of futures  positions and options on futures can enter
into  offsetting  closing  transactions,  similar  to  closing  transactions  on
options, by selling or purchasing,  respectively, an instrument identical to the
instrument  held or written.  Positions in futures and options on futures may be
closed only on an exchange or board of trade that  provides a secondary  market.
The funds intend to enter into futures  transactions only on exchanges or boards
of trade where there appears to be a liquid secondary market. However, there can
be no  assurance  that such a market will exist for a  particular  contract at a
particular time.

      Under certain circumstances,  futures exchanges may establish daily limits
on the  amount  that the price of a future or  related  option can vary from the
previous day's settlement  price;  once that limit is reached,  no trades may be
made that day at a price  beyond  the  limit.  Daily  price  limits do not limit
potential  losses  because  prices  could  move to the daily  limit for  several
consecutive days with little or no trading,  thereby  preventing  liquidation of
unfavorable positions.

      If a fund were unable to liquidate a futures or related  options  position
due to the  absence  of a liquid  secondary  market or the  imposition  of price
limits, it could incur  substantial  losses. A fund would continue to be subject
to market risk with respect to the position. In addition,  except in the case of
purchased  options, a fund would continue to be required to make daily variation
margin  payments and might be required to maintain the position  being hedged by
the future or option or to maintain cash or securities in a segregated account.

      Certain characteristics of the futures market might increase the risk that
movements  in the  prices of futures  contracts  or  related  options  might not
correlate  perfectly  with  movements  in the  prices of the  investments  being
hedged. For example, all participants in the futures and related options markets
are subject to daily variation  margin calls and might be compelled to liquidate
futures or related  options  positions  whose prices are moving  unfavorably  to
avoid being subject to further calls.  These  liquidations  could increase price
volatility of the instruments and distort the normal price relationship  between
the futures or options and the investments being hedged.  Also,  because initial
margin deposit  requirements  in the futures market are less onerous than margin
requirements in the securities markets,  there might be increased  participation
by  speculators  in the futures  markets.  This  participation  also might cause
temporary price  distortions.  In addition,  activities of large traders in both
the futures and securities  markets involving  arbitrage,  "program trading" and
other investment strategies might result in temporary price distortions.

      LIMITATION  ON THE USE OF FUTURES  AND  RELATED  OPTIONS.  A fund's use of
futures and related options is governed by the following guideline, which can be
changed by the board without shareholder vote:

      To the extent a fund enters into futures  contracts and options on futures
positions that are not for bona fide hedging  purposes (as defined by the CFTC),
the aggregate  initial  margin and premiums on those  positions  (excluding  the
amount by which options are "in-the-money") may not exceed 5% of its net assets.



                                     14
<PAGE>


            ORGANIZATION; TRUSTEES AND OFFICERS; PRINCIPAL HOLDERS
                    AND MANAGEMENT OWNERSHIP OF SECURITIES

      The Trust was formed on December 23, 1999,  as a business  trust under the
laws of  Delaware.  The  Trust  has two  series  and is  authorized  to issue an
unlimited  number of  shares of  beneficial  interest,  par value of $0.001  per
share, of existing or future series.

      The Trust is governed by a board of trustees which oversees its operations
and which 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:

<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

Margo N. Alexander*+; 53       Trustee and         Mrs. Alexander  is   Chairman
                                President          (since   March1999),    chief
                                                   executive   officer   and   a
                                                   director of Mitchell Hutchins
                                                   (since January 1995),  and an
                                                   executive  vice president and
                                                   director    of    PaineWebber
                                                   (since  March   1984).   Mrs.
                                                   Alexander  is  president  and
                                                   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.
One Old Church Road                                Enterprises       (management
Unit #6                                            consulting firm) (since April
Greenwich, CT 06830                                1991 and principal 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.
</TABLE>



                                     15
<PAGE>


<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

E. Garrett Bewkes,             Trustee and         Mr. Bewkes is  a director  of
Jr.**+; 73                   Chairman of the       Paine  Webber   Group    Inc.
                            Board of Trustees      ("PW 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; 53              Trustee           Mr. Burt is chairman  of  IEP
1275 Pennsylvania Ave,                             Advisors, LLP  (international
N.W.                                               investments   and  consulting
Washington, DC  20004                              firm  (since   March 1994), 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)   and  Homestake
                                                   Mining Corp.  (gold  mining),
                                                   vice   chairman   of   Anchor
                                                   Gaming  (provides  technology
                                                   to   gaming   and    wagering
                                                   industry)  (since  July 1999)
                                                   and chairman of Weirton Steel
                                                   Corp   (makes  and   finishes
                                                   steel products)  (since April
                                                   1996).   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**+; 50           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 30 investment
                                                   companies for  which Mitchell
                                                   Hutchins, PaineWebber or  one
                                                   of their affiliates serves as
                                                   investment           adviser.
</TABLE>



                                     16
<PAGE>


<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

Meyer Feldberg; 58               Trustee           Mr. Feldberg  is   Dean   and
Columbia University                                Professor  of  Management  of
101 Uris Hall                                      the    Graduate    School  of
New York, NY  10027                                Business,            Columbia
                                                   University. Prior to 1989, he
                                                   was     president  of     the
                                                   Illinois    Institute      of
                                                   Technology.  Dean Feldberg is
                                                   also a director of   Primedia
                                                   Inc.  (publishing), Federated
                                                   Department    Stores,    Inc.
                                                   (operator   of     department
                                                   stores)  and  Revlon,    Inc.
                                                   (cosmetics). 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; 70              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; 63            Trustee           Mr.   Malek   is chairman  of
                                                   Thayer    Capital    Partners
1455 Pennsylvania Ave,                             (merchant bank) and chairman
N.W.                                               of  Thayer Hotel Investors II
Suite 350                                          and   Lodging   Opportunities
Washington, DC  20004                              Fund    (hotel     investment
                                                   partnerships). From   January
                                                   1992 to November 1992, he was
                                                   he  was  campaign 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.  and   NWA Inc.
                                                   (holding company of Northwest
                                                   Airlines  Inc.).   Prior   to
                                                   1989,  he  was  employed   by
                                                   the    Marriott   Corporation
                                                   (hotels, restaurants, airline
                                                   catering     and     contract
                                                   feeding),  where    he   most
                                                   most    recently    was    an
                                                   executive vice  president and
                                                   president of Marriott  Hotels
                                                   and   Resorts.  Mr.  Malek is
                                                   also  a   director  of  Aegis
                                                   Communications,   Inc. (tele-
                                                   services),           American
                                                   Management   Systems,    Inc.
                                                   (management  consulting   and
                                                   computer  related  services),
                                                   Automatic  Data   Processing,
                                                   Inc., (computing   services),
                                                   CB Richard Ellis, Inc.  (real
                                                   estate services),  FPL Group,
                                                   Inc.  (electric   services),
                                                   Global     Vacation     Group
                                                   (packaged         vacations),
                                                   HCR/Manor      Care,     Inc.
                                                   (health care), SAGA  Systems,
                                                   Inc. (software company)   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.
</TABLE>



                                     17
<PAGE>


<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

Carl W. Schafer; 64              Trustee           Mr.  Schafer is  president of
66 Witherspoon Street,                             the   Atlantic     Foundation
#1100                                              (charitable        foundation
Princeton, NJ  08542                               supporting            mainly
                                                   oceanographic exploration and
                                                   research).  He is a  director
                                                   of    Labor    Ready,    Inc.
                                                   (temporary       employment),
                                                   Roadway       Express,   Inc.
                                                   (trucking),   The    Guardian
                                                   Group  of  Mutual Funds,  the
                                                   Harding,    Loevner    Funds,
                                                   E.I.I.     Realty       Trust
                                                   (investment  company),  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*+; 45            Trustee           Mr. Storms  is  president and
                                                   chief operating  officer   of
                                                   Mitchell    Hutchins   (since
                                                   March 1999).   Mr. Storms 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.

T. Kirkham Barneby*; 53       Vice President       Mr. Barneby  is  a   managing
                                                   director    and         chief
                                                   investment          officer--
                                                   quantitative      investments
                                                   of      Mitchell    Hutchins.
                                                   Mr. Barneby  is    a     vice
                                                   president       of      eight
                                                   investment     companies  for
                                                   which   Mitchell    Hutchins,
                                                   PaineWebber or one of   their
                                                   affiliates      serves     as
                                                   investment           adviser.

Tom Disbrow**; 34           Vice President and     Mr. Disbrow is  a first  vice
                           Assistant Treasurer     president    and    a  senior
                                                   manager  of    the     mutual
                                                   fund   finance  department of
                                                   Mitchell Hutchins.  Prior  to
                                                   November 1999,  he was a vice
                                                   president    of  Zweig/Glaser
                                                   Advisers.    Mr.  Disbrow  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.

John J. Holmgren***; 61       Vice President       Mr. Holmgren   is  president,
                                                   chief  executive  officer and
                                                   a director  of  DSI.  He is a
                                                   vice       president  of  one
                                                   investment company for  which
                                                   Mitchell            Hutchins,
                                                   PaineWebber or one of   their
                                                   affiliates      serves     as
                                                   investment           adviser.
</TABLE>



                                     18
<PAGE>

<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

John J. Holmgren, Jr.***;     Vice President       Mr.  Holmgren is  executive  vice
38                                                 president,     chief    operating
                                                   officer,  a portfolio manager and
                                                   a  director  of  DSI.   Prior  to
                                                   January  1997,  he was  president
                                                   of DSC  Data  Services,  Inc.,  a
                                                   consulting   firm.  Mr.  Holmgren
                                                   is  a  vice   president   of  one
                                                   investment   company   for  which
                                                   Mitchell  Hutchins,   PaineWebber
                                                   or   one  of   their   affiliates
                                                   serves as investment adviser.

John J. Lee**; 31           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
                                                   investment adviser.

Kevin J. Mahoney**; 34      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
                                                   for  BlackRock      Financial
                                                   Management  L.P.  Mr. Mahoney
                                                   is  a   vice   president  and
                                                   and     assistant   treasurer
                                                   of  32   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
                                Secretary          vice   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.

</TABLE>


                                     19
<PAGE>


<TABLE>
<CAPTION>
<S>     <C>                <C>                     <C>


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

Emil Polito*; 39              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.

Victoria E. Schonfeld**;      Vice President       Ms. Schonfeld is  a  managing
49                                                 director  and general counsel
                                                   of   Mitchell   Hutchins  and
                                                   (since  July  1995) a  senior
                                                   vice      president       of
                                                   PaineWebber.  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.

Paul H. Schubert**; 37      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
39                         Assistant Treasurer     president  and a  manager  of
                                                   the   mutual   fund   finance
                                                   department    of     Mitchell
                                                   Hutchins.    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.

</TABLE>

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

*   This  person's  business address is 51 West 52nd Street, New York,  New York
10019-6114.

**  This person's business address is 1285 Avenue of the Americas, New York, New
York 10019.

*** This person's business address is 301 Merritt 7, Norwalk, Connecticut 06851.

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

      The Trust pays  trustees  who are not  "interested  persons"  of the Trust
$1,000  annually for each series and $150 per series for each board  meeting and
each separate meeting of a board  committee.  The Trust presently has two series
and thus pays each such trustee $2,000 annually, plus any additional



                                     20
<PAGE>



annual amounts due for board or committee meetings.  All trustees are reimbursed
for any expenses incurred in attending  meetings.  Because Mitchell Hutchins and
PaineWebber  perform  substantially  all  of  the  services  necessary  for  the
operation  of the Trust and the  funds,  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 trustee or officer.

      The table below  includes  certain  information  relating to the estimated
compensation of the Trust's trustees and the compensation of those trustees from
all PaineWebber funds during the 1999 calendar year.

                             COMPENSATION TABLE+


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

     Richard Q. Armstrong,
        Trustee.............               $ 3,500             $ 101,372

     Richard R. Burt,
         Trustee............                 3,500               101,372

     Meyer Feldberg,
         Trustee............                 3,500               116,222

     George W. Gowen,
         Trustee............                 4,250               108,272

     Frederic V. Malek,
         Trustee............                 3,500               101,372

     Carl W. Schafer,
         Trustee............                 3,500               101,372



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

+     Only  independent  trustees are compensated by the PaineWebber  funds and
      identified above; trustees who are "interested persons," as defined by the
      Investment  Company Act, do not receive  compensation from the PaineWebber
      funds.


*     Represents  estimated  aggregate  annual  compensation to be  paid  by the
      Trust to each trustee indicated during its initial full fiscal year.

**    Represents  total  compensation   paid  during  the   calendar  year ended
      December 31, 1999, to each trustee by 31  investment  companies (34 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 AND MANAGEMENT OWNERSHIP OF SECURITIES

      As of March 2,  2000,  Mitchell  Hutchins  owned  100% of all  outstanding
shares  of each fund and thus may be deemed a  controlling  shareholder  of each
fund until  additional  investors  purchase  shares.  None of the  trustees  and
officers of the Trust beneficially owned any of the outstanding shares of either
fund.


      INVESTMENT ADVISORY, ADMINISTRATION AND DISTRIBUTION ARRANGEMENTS

      INVESTMENT  ADVISORY AND  ADMINISTRATION  ARRANGEMENTS.  Mitchell Hutchins
acts as the  investment  adviser and  administrator  of each fund pursuant to an
investment advisory and administration  contract ("Advisory  Contract") with the
Trust. Under the Advisory Contract, Enhanced S&P 500 Fund pays Mitchell Hutchins
a fee,  computed daily and paid monthly,  at the annual rate of 0.40% of average
daily net assets and  Enhanced  Nasdaq-100  Fund pays  Mitchell  Hutchins a fee,
computed  daily and paid  monthly,  at the annual rate of 0.75% of average daily
net assets.


                                     21
<PAGE>


      The Advisory Contract  authorizes  Mitchell Hutchins to retain one or more
sub-advisers  but does not require  Mitchell  Hutchins to do so. Under  separate
sub-advisory  contracts  (each  a  "Sub-Advisory  Contract")  DSI  International
Management,  Inc.  serves as sub-adviser  for each fund.  Under each  applicable
Sub-Advisory  Contract,  Mitchell  Hutchins (not the fund) pays DSI a fee in the
annual amount of 0.20% of average daily net assets for Enhanced S&P 500 Fund and
0.35% of average daily net assets for Enhanced Nasdaq-100 Fund.

      Under the terms of the  Advisory  Contract,  each fund bears all  expenses
incurred  in its  operation  that  are  not  specifically  assumed  by  Mitchell
Hutchins. General expenses of the Trust not readily identifiable as belonging to
a  specific  series  of the  Trust are  allocated  among  series by or under the
direction  of the  Trust's  board in such  manner  as the board  deems  fair and
equitable.  Expenses  borne by each fund  include  the  following:  (1) the cost
(including brokerage commissions, 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 Mitchell Hutchins; (3) organizational
expenses;  (4)  filing  fees  and  expenses  relating  to the  registration  and
qualification  of a fund's shares under federal and/or state securities laws and
maintenance  of such  registrations  and  qualifications;  (5) fees and salaries
payable to  trustees  who are not  interested  persons of the Trust or  Mitchell
Hutchins;  (6) all expenses incurred in connection with the trustees'  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 fund for violation of any law; (10) legal,  accounting  and
auditing  expenses,  including legal fees of special counsel for the independent
trustees;  (11) charges of custodians,  transfer  agents and other agents;  (12)
costs of  preparing  share  certificates;  (13)  expenses of setting in type and
printing   prospectuses  and  supplements  thereto,   statements  of  additional
information  and supplements  thereto,  reports and proxy materials for existing
shareholders;  (14)  costs of  mailing  prospectuses  and  supplements  thereto,
statements of additional information and supplements thereto,  reports and proxy
materials to existing  shareholders;  (15) any extraordinary expenses (including
fees and  disbursements of counsel)  incurred by the fund; (16) fees,  voluntary
assessments  and other  expenses  incurred  in  connection  with  membership  in
investment company  organizations;  (17) costs of mailing and tabulating proxies
and costs of meetings of  shareholders,  the board and any  committees  thereof;
(18) the cost of investment company  literature and other publications  provided
to trustees and officers;  (19) costs of mailing,  stationery and communications
equipment;  (20)  expenses  incident to any  dividend,  withdrawal or redemption
options;  (21) charges and expenses of any outside pricing service used to value
portfolio securities;  (22) interest on borrowings of the fund; and (23) fees or
expenses related to license agreements with respect to securities indices.

      Under the Advisory Contract,  Mitchell Hutchins will not be liable for any
error  of  judgment  or  mistake  of law or for any loss  suffered  by a fund in
connection  with  the  performance  of  the  Advisory  Contract,  except  a loss
resulting from willful misfeasance, bad faith or gross negligence on the part of
Mitchell Hutchins in the performance of its duties or from reckless disregard of
its  duties  and  obligations  thereunder.   The  Advisory  Contract  terminates
automatically  for a fund  upon its  assignment  and is  terminable  at any time
without penalty by the board or by vote of the holders of a majority of a fund's
outstanding voting  securities,  on 60 days' written notice to Mitchell Hutchins
or by Mitchell Hutchins on 60 days' written notice to the fund.

      Under each Sub-Advisory  Contract, DSI will not be liable for any error or
judgment or mistake of law or for any loss  suffered by the Trust,  a fund,  its
shareholders or Mitchell Hutchins in connection with each Sub-Advisory Contract,
except any  liability to any of them to which DSI would  otherwise be subject by
reason of willful misfeasance,  bad faith or gross negligence on its part in the
performance  of its duties or from reckless  disregard by it of its  obligations
and  duties  under  each  Sub-Advisory  Contract.   Each  Sub-Advisory  Contract
terminates  automatically upon its assignment or the termination of the Advisory
Contract and is terminable  at any time without  penalty by the board or by vote
of the holders of a majority of a fund's  outstanding  voting  securities  on 60
days'  notice to DSI, or by DSI on 120 days' notice to Mitchell  Hutchins.  Each
Sub-Advisory  Contract  also may be  terminated  by Mitchell  Hutchins  (1) upon
material breach by DSI of its representations and warranties, which breach shall
not have been cured within a 20 day period  after  notice of the breach,  (2) if
DSI  becomes  unable  to  discharge  its  duties  and   obligations   under  the
Sub-Advisory Contract; or (3) upon 120 days' notice to DSI.


                                     22
<PAGE>


      PaineWebber  provides  transfer  agency  related  services  to  each  fund
pursuant to a delegation  of  authority  from PFPC Inc.,  not the funds,  and is
compensated for those services by PFPC Inc. not the funds.

      NET ASSETS.  The following  table shows the  approximate  net assets as of
January 31, 2000, 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)....................    $ 9,890.5
          Global...............................................      4,777.3
          Equity/Balanced......................................     10,074.1
          Fixed Income (excluding Money Market)................      4,593.7
             Taxable Fixed Income..............................      3,171.5
             Income Tax-Free Fixed Income......................      1,422.2
          Money Market Funds...................................     38,247.0


      PERSONAL TRADING POLICIES.  The funds, Mitchell Hutchins and DSI each have
adopted  codes of ethics  under Rule 17j-1 of the  Investment  Company  Act that
permits  their  trustees,   directors,  officers  and  employees  to  invest  in
securities, including securities that may be held or purchased by a fund.


      DISTRIBUTION  ARRANGEMENTS.  Mitchell  Hutchins acts as the distributor of
each class of shares of each fund under separate distribution contracts with the
Trust ("Distribution  Contracts").  Each Distribution Contract requires Mitchell
Hutchins to use its best efforts,  consistent with its other businesses, to sell
shares  of the  funds.  Shares  of each  fund are  offered  continuously.  Under
separate  exclusive dealer agreements  between Mitchell Hutchins and PaineWebber
relating to each class of shares of the funds ("Exclusive  Dealer  Agreements"),
PaineWebber  and its  correspondent  firms  sell  the  funds'  shares.  Mitchell
Hutchins is located at 51 West 52nd Street,  New York,  New York  10019-6114 and
PaineWebber is located at 1285 Avenue of the Americas, New York, New York 10019.

      Under  separate plans of  distribution  pertaining to the Class A, Class B
and Class C shares of each fund  adopted by the Trust in the  manner  prescribed
under Rule 12b-1 under the Investment Company Act (each, respectively,  a "Class
A Plan,"  "Class B Plan" and "Class C Plan," and  collectively,  "Plans"),  each
fund pays Mitchell Hutchins a service fee, accrued daily and payable monthly, at
the  annual  rate of 0.25% of the  average  daily net  assets  of each  class of
shares.  Under the Class B Plan and the Class C Plan, Enhanced S&P 500 Fund pays
Mitchell Hutchins a distribution fee, accrued daily and payable monthly,  at the
annual rate of 0.40% of the  average  daily net assets of the Class B shares and
Class C  shares,  respectively.  Under  the  Class B Plan and the  Class C Plan,
Enhanced  Nasdaq-100  Fund pays Mitchell  Hutchins a distribution  fee,  accrued
daily and payable monthly,  at the annual rate of 0.75% of the average daily net
assets of the  Class B shares  and  Class C  shares,  respectively.  There is no
distribution  plan with respect to the funds' Class Y shares,  and the funds pay
no service or distribution fees with respect to their Class Y shares.

      Mitchell Hutchins uses the service fees under the Plans for Class A, B and
C shares  primarily to pay PaineWebber for shareholder  servicing,  currently at
the annual rate of 0.25% of the aggregate  investment amounts maintained in each
fund by PaineWebber clients. PaineWebber then compensates its Financial Advisors
for  shareholder  servicing  that they  perform and offsets its own  expenses in
servicing and maintaining shareholder accounts.

      Mitchell Hutchins uses the distribution fees under the Class B and Class C
Plans to:

        o   Offset the  commissions it pays to  PaineWebber  for selling each
            fund's Class B and Class C shares, respectively.

        o   Offset a fund's  marketing  costs  attributable  to such classes,
            such  as   preparation,   printing  and   distribution  of  sales
            literature, advertising and prospectuses to prospective investors
            and related  overhead  expenses,  such as employee  salaries  and
            bonuses.


                                     23
<PAGE>


      PaineWebber compensates Financial Advisors when Class B and Class C shares
are bought by  investors,  as well as on an  ongoing  basis.  Mitchell  Hutchins
receives no special  compensation from any of the funds or investors at the time
Class B or C shares are bought.

      Mitchell  Hutchins  receives the proceeds of the initial sales charge paid
when Class A shares are bought and of the contingent  deferred sales charge paid
upon sales of shares. These proceeds may be used to cover distribution expenses.

      The Plans and the related Distribution  Contracts for Class A, Class B and
Class C shares specify that each fund must pay service and distribution  fees to
Mitchell  Hutchins  for  its  service  and  distribution   activities,   not  as
reimbursement  for  specific  expenses  incurred.  Therefore,  even if  Mitchell
Hutchins'  expenses  exceed the service or  distribution  fees it receives,  the
funds will not be obligated to pay more than those fees.  On the other hand,  if
Mitchell  Hutchins'  expenses  are less than such fees,  it will retain its full
fees and realize a profit.  Expenses in excess of service and distribution  fees
received or accrued  through the  termination  date of any Plan will be Mitchell
Hutchins' sole responsibility and not that of the funds.  Annually, the board of
each fund reviews the Plans and Mitchell  Hutchins'  corresponding  expenses for
each class separately from the Plans and expenses of the other classes.

      Among other things,  each Plan  provides  that (1) Mitchell  Hutchins will
submit to the board at least  quarterly,  and the trustees will review,  reports
regarding  all amounts  expended  under the Plan and the purposes for which such
expenditures  were made, (2) the Plan will continue in effect only so long as it
is approved at least annually,  and any material  amendment thereto is approved,
by the board,  including those trustees who are not "interested  persons" of the
funds and who have no direct or indirect  financial interest in the operation of
the Plan or any  agreement  related  to the Plan,  acting in person at a meeting
called  for that  purpose,  (3)  payments  by a fund under the Plan shall not be
materially  increased  without the affirmative vote of the holders of a majority
of the  outstanding  shares of the applicable  class of a fund and (4) while the
Plan remains in effect,  the  selection  and  nomination of trustees who are not
"interested  persons" of the Trust shall be committed to the  discretion  of the
trustees who are not "interested persons" of the Trust.

      In reporting  amounts  expended under the Plans to the trustees,  Mitchell
Hutchins allocates  expenses  attributable to the sale of each class of a fund's
shares to such class  based on the ratio of sales of shares of such class to the
sales of all three  classes  of  shares.  The fees paid by one class of a fund's
shares will not be used to subsidize the sale of any other class of fund shares.

      In  approving  each  fund's  overall   Flexible   Pricing(SM)   system  of
distribution,   the   board   considered   several   factors,   including   that
implementation  of Flexible  Pricing  would (1) enable  investors  to choose the
purchasing option best suited to their individual situation, thereby encouraging
current  shareholders to make additional  investments in the fund and attracting
new  investors  and  assets  to the  fund to the  benefit  of the  fund  and its
shareholders,  (2) facilitate distribution of the fund's shares and (3) maintain
the  competitive  position  of the fund in  relation  to other  funds  that have
implemented or are seeking to implement similar distribution arrangements.

      In approving the Class A Plan for each fund, the board  considered all the
features of the  distribution  system,  including (1) the conditions under which
initial  sales  charges  would be imposed  and the amount of such  charges,  (2)
Mitchell Hutchins' belief that the initial sales charge combined with a


                                     24
<PAGE>


service  fee  would  be  attractive  to  PaineWebber   Financial   Advisors  and
correspondent  firms,  resulting  in  greater  growth  of the  fund  than  might
otherwise be the case,  (3) the advantages to the  shareholders  of economies of
scale resulting from growth in the fund's assets and potential continued growth,
(4) the services provided to the fund and its shareholders by Mitchell Hutchins,
(5) the  services  provided  by  PaineWebber  pursuant to its  Exclusive  Dealer
Agreement  with  Mitchell  Hutchins  and  (6)  Mitchell  Hutchins'   shareholder
service-related expenses and costs.

      In approving the Class B Plan for each fund, the board  considered all the
features of the  distribution  system,  including (1) the conditions under which
contingent  deferred  sales  charges  would be  imposed  and the  amount of such
charges,  (2) the  advantage  to investors  in having no initial  sales  charges
deducted  from fund  purchase  payments and instead  having the entire amount of
their  purchase  payments  immediately  invested in fund  shares,  (3)  Mitchell
Hutchins'  belief  that  the  ability  of  PaineWebber  Financial  Advisors  and
correspondent  firms to receive sales  commissions  when Class B shares are sold
and continuing service fees thereafter while their customers invest their entire
purchase  payments  immediately in Class B shares would prove  attractive to the
Financial Advisors and correspondent  firms,  resulting in greater growth of the
fund than might otherwise be the case, (4) the advantages to the shareholders of
economies  of scale  resulting  from growth in the fund's  assets and  potential
continued growth,  (5) the services provided to the fund and its shareholders by
Mitchell  Hutchins,  (6) the services  provided by  PaineWebber  pursuant to its
Exclusive  Dealer  Agreement with Mitchell  Hutchins and (7) Mitchell  Hutchins'
shareholder service- and  distribution-related  expenses and costs. The trustees
also recognized that Mitchell  Hutchins'  willingness to compensate  PaineWebber
and its Financial Advisors, without the concomitant receipt by Mitchell Hutchins
of  initial  sales  charges,  was  conditioned  upon  its  expectation  of being
compensated under the Class B Plan.

      In approving the Class C Plan for each fund, the board  considered all the
features of the distribution system, including (1) the advantage to investors in
having no initial sales charges deducted from fund purchase payments and instead
having the entire amount of their purchase payments immediately invested in fund
shares,  (2) the advantage to investors in being free from  contingent  deferred
sales charges upon  redemption for shares held more than one year and paying for
distribution on an ongoing basis, (3) Mitchell Hutchins' belief that the ability
of  PaineWebber  Financial  Advisors and  correspondent  firms to receive  sales
compensation  for their sales of Class C shares on an ongoing basis,  along with
continuing  service fees,  while their  customers  invest their entire  purchase
payments  immediately  in Class C shares and  generally  do not face  contingent
deferred sales  charges,  would prove  attractive to the Financial  Advisors and
correspondent  firms,  resulting  in  greater  growth  of the  fund  than  might
otherwise be the case,  (4) the advantages to the  shareholders  of economies of
scale resulting from growth in the fund's assets and potential continued growth,
(5) the services provided to the fund and its shareholders by Mitchell Hutchins,
(6) the  services  provided  by  PaineWebber  pursuant to its  Exclusive  Dealer
Agreement with Mitchell Hutchins and (7) Mitchell Hutchins' shareholder service-
and  distribution-related  expenses and costs. The trustees also recognized that
Mitchell  Hutchins'  willingness  to  compensate  PaineWebber  and its Financial
Advisors,  without the concomitant receipt by Mitchell Hutchins of initial sales
charges or contingent deferred sales charges upon redemption,  except within one
year after purchase,  was conditioned upon its expectation of being  compensated
under the Class C Plan.

      With  respect  to each  Plan,  the  board  considered  for  each  fund all
compensation  that  Mitchell  Hutchins  would  receive  under  the  Plan and the
Distribution Contract, including service fees and, as applicable,  initial sales
charges, distribution fees and contingent deferred sales charges. The board also
considered  the benefits that would accrue to Mitchell  Hutchins under each Plan
in that Mitchell Hutchins would receive service,  distribution and advisory fees
that are  calculated  based upon a percentage  of the average net assets of each
fund,  which  fees  would  increase  if the Plan  were  successful  and the fund
attained and maintained significant asset levels.

                            PORTFOLIO TRANSACTIONS

      Subject  to  policies   established  by  the  board,  the  sub-adviser  is
responsible  for the  execution of each fund's  portfolio  transactions  and the
allocation of brokerage transactions.  In executing portfolio transactions,  the
sub-adviser seeks to obtain the best net results for a fund, taking into account
such factors as the price  (including  the  applicable  brokerage  commission or
dealer  spread),  size  of  order,   difficulty  of  execution  and  operational
facilities  of  the  firm  involved.   While  the  sub-adviser  generally  seeks
reasonably competitive commission rates, payment of the lowest commission is not
necessarily  consistent  with  obtaining  the best net  results.  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. The funds may invest in securities traded
in the  over-the-counter  market  and  will  engage  primarily  in  transactions
directly with the dealers who make markets in such  securities,  unless a better
price or execution could be obtained by using a broker.

      The funds have no  obligation  to deal with any broker or group of brokers
in  the  execution  of  portfolio  transactions.  The  funds  contemplate  that,
consistent  with  the  policy  of  obtaining  the best  net  results,  brokerage
transactions may be conducted through Mitchell Hutchins or its affiliates,


                                     25
<PAGE>


including PaineWebber.  The board has adopted procedures in conformity with Rule
17e-1 under the Investment Company Act to ensure that all brokerage  commissions
paid to PaineWebber are reasonable and fair. Specific provisions in the Advisory
Contracts authorize Mitchell Hutchins and any of its affiliates that is a member
of a national securities exchange to effect portfolio transactions for the funds
on  such  exchange  and  to  retain   compensation   in  connection   with  such
transactions.  Any such transactions  will be effected and related  compensation
paid only in accordance with applicable SEC regulations.

      Transactions in futures contracts are executed through futures  commission
merchants ("FCMs"),  who receive brokerage  commissions for their services.  The
funds'  procedures  in  selecting  FCMs to execute its  transactions  in futures
contracts,  including procedures permitting the use of Mitchell Hutchins and its
affiliates,   are  similar  to  those  in  effect  with   respect  to  brokerage
transactions in securities.

      In selecting  brokers,  the  sub-adviser  will consider the full range and
quality of a broker's  services.  Consistent with the interests of the funds and
subject  to the  review  of each  board,  the  sub-adviser  may  cause a fund to
purchase  and  sell  portfolio   securities  through  brokers  who  provide  the
sub-adviser with brokerage or research services. The funds may pay those brokers
a higher  commission  than may be charged by other  brokers,  provided  that the
sub-adviser  determines in good faith that the commission is reasonable in terms
either of that particular  transaction or of the overall  responsibility  of the
sub-adviser to that fund and its other clients.

      Research  services  obtained  from  brokers may include  written  reports,
pricing and appraisal  services,  analysis of issues raised in proxy statements,
educational  seminars,  subscriptions,   portfolio  attribution  and  monitoring
services, and computer hardware,  software and access charges which are directly
related to investment research. Research services may be received in the form of
written reports, online services,  telephone contacts and personal meetings with
securities  analysts,  economists,  corporate  and  industry  spokespersons  and
government representatives.

      For purchases or sales with broker-dealer firms that act as principal, the
sub-adviser  seeks best execution.  Although the sub-adviser may receive certain
research or execution  services in connection with these  transactions,  it will
not purchase  securities  at a higher price or sell  securities at a lower price
than  would  otherwise  be paid if no  weight  was  attributed  to the  services
provided  by  the  executing  dealer.  The  sub-adviser  may  engage  in  agency
transactions  in  over-the-counter  equity  and debt  securities  in return  for
research  and  execution  services.  These  transactions  are entered  into only
pursuant  to  procedures  that are  designed  to  ensure  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.

      Research services and information  received from brokers or dealers are
supplemental to the  sub-adviser's  own research  efforts and, when utilized,
      are subject to internal analysis before being incorporated into its
investment processes.  Information and research services furnished by brokers
or  dealers  through  which  or  with  which  the  funds  effect   securities
transactions  may be used by the  sub-adviser  in  advising  other  funds  or
accounts and,  conversely,  research services furnished to the sub-adviser by
brokers or dealers in connection with other funds or accounts that it advises
may be used in advising the funds.

      Investment  decisions for a fund and for other investment accounts managed
by the  sub-adviser 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 a fund and one or more accounts.  In those cases,
simultaneous  transactions are inevitable.  Purchases or sales are then averaged
as to price and  allocated  between  that fund and the  other  account(s)  as to
amount  according  to a  formula  deemed  equitable  to the fund  and the  other
account(s).  While in some cases this practice  could have a detrimental  effect
upon the price or value of the security as far as a fund is  concerned,  or upon
its ability to complete  its entire  order,  in other cases it is believed  that
simultaneous  transactions and the ability to participate in volume transactions
will benefit the funds.

      The funds will not purchase  securities that are offered in  underwritings
in which  PaineWebber is a member of the  underwriting or selling group,  except
pursuant to  procedures  adopted by each board  pursuant to Rule 10f-3 under the
Investment Company Act. Among other things, these procedures


                                     26
<PAGE>


require that the spread or commission paid in connection with such a purchase be
reasonable and fair, the purchase be at not more than the public  offering price
prior to the end of the first business day after the date of the public offering
and that PaineWebber or any affiliate thereof not participate in or benefit from
the sale to the funds.

      PORTFOLIO  TURNOVER.  Each fund's annual portfolio  turnover rate may vary
greatly  from  year to year but  will not be a  limiting  factor  in the  funds'
operations.  The portfolio turnover rate is calculated by dividing the lesser of
a fund's  annual  sales or  purchases  of  portfolio  securities  (exclusive  of
purchases or sales of securities  whose  maturities  at the time of  acquisition
were one  year or  less) by the  monthly  average  value  of  securities  in the
portfolio during the year.

          REDUCED SALES CHARGES, ADDITIONAL EXCHANGE AND REDEMPTION
                        INFORMATION AND OTHER SERVICES

      WAIVERS  OF SALES  CHARGES/CONTINGENT  DEFERRED  SALES  CHARGES -- CLASS A
SHARES. The following  additional sales charge waivers are available for Class A
shares if you:

o        Purchase  shares through a variable  annuity  offered only to qualified
         plans. For investments made pursuant to this waiver,  Mitchell Hutchins
         may make  payments out of its own resources to  PaineWebber  and to the
         variable  annuity's  sponsor,  adviser or distributor in a total amount
         not to exceed l% of the amount invested;

o        Acquire shares  through an investment  program that is not sponsored by
         PaineWebber or its  affiliates and that charges  participants a fee for
         program services,  provided that the program sponsor has entered into a
         written agreement with PaineWebber permitting the sale of shares at net
         asset value to that  program.  For  investments  made  pursuant to this
         waiver,  Mitchell Hutchins may make a payment to PaineWebber out of its
         own resources in an amount not to exceed 1% of the amount invested. For
         subsequent  investments  or exchanges  made to implement a  rebalancing
         feature  of  such  an  investment   program,   the  minimum  subsequent
         investment requirement is also waived;

o        Acquire shares in connection with a reorganization  pursuant to which a
         fund  acquires  substantially  all of the  assets  and  liabilities  of
         another fund in exchange solely for shares of the acquiring fund; or

o        Acquire shares in connection  with the disposition of proceeds from the
         sale of shares of Managed High Yield Plus Fund Inc.  that were acquired
         during  that  fund's  initial  public  offering of shares and that meet
         certain other conditions described in its prospectus.


      In addition, reduced sales charges on Class A shares are available through
the combined  purchase plan or through rights of accumulation  described  below.
Class A share  purchases  of $1  million  or more are not  subject to an initial
sales charge; however, if a shareholder sells these shares within one year after
purchase, a contingent deferred sales charge (of 1% of the offering price or the
net asset value of the shares at the time of sale) by the shareholder, whichever
is less, is imposed.

      COMBINED  PURCHASE  PRIVILEGE  -- CLASS A SHARES.  Investors  and eligible
groups of related fund investors may combine  purchases of Class A shares of the
funds  with  concurrent  purchases  of Class A shares of any  other  PaineWebber
mutual fund and thus take  advantage of the reduced sales  charges  indicated in
the  tables of sales  charges  for Class A shares in the  Prospectus.  The sales
charge payable on the purchase of Class A shares of the funds and Class A shares
of such other funds will be at the rates  applicable  to the total amount of the
combined concurrent purchases.

      An  "eligible  group  of  related  fund  investors"  can  consist  of  any
combination of the following:

      (a) an individual, that individual's spouse, parents and children;

      (b) an individual and his or her individual retirement account ("IRA");


                                     27
<PAGE>


      (c) an  individual  (or  eligible  group of  individuals)  and any company
controlled  by the  individual(s)  (a person,  entity or group that holds 25% or
more of the  outstanding  voting  securities of a corporation  will be deemed to
control the  corporation,  and a partnership  will be deemed to be controlled by
each of its general partners);

      (d) an  individual  (or  eligible  group of  individuals)  and one or more
employee benefit plans of a company controlled by the individual(s);

      (e) an individual (or eligible group of  individuals)  and a trust created
by the  individual(s),  the beneficiaries of which are the individual and/or the
individual's spouse, parents or children;

      (f) an individual and a Uniform Gifts to Minors  Act/Uniform  Transfers to
Minors Act account created by the individual or the individual's spouse;

      (g) an employer (or group of related  employers) and one or more qualified
retirement  plans  of such  employer  or  employers  (an  employer  controlling,
controlled by or under common control with another employer is deemed related to
that other employer); or

      (h) individual  accounts related together under one registered  investment
adviser  having full  discretion  and control over the accounts.  The registered
investment  adviser must communicate at least quarterly  through a newsletter or
investment update establishing a relationship with all of the accounts.

      RIGHTS  OF  ACCUMULATION  -- CLASS A SHARES.  Reduced  sales  charges  are
available  through a right of  accumulation,  under which investors and eligible
groups of related fund  investors  (as defined  above) are permitted to purchase
Class A shares  of the  funds  among  related  accounts  at the  offering  price
applicable to the total of (1) the dollar amount then being  purchased  plus (2)
an amount equal to the then-current net asset value of the purchaser's  combined
holdings  of Class A fund  shares  and Class A shares  of any other  PaineWebber
mutual  fund.  The  purchaser  must  provide  sufficient  information  to permit
confirmation of his or her holdings, and the acceptance of the purchase order is
subject  to such  confirmation.  The right of  accumulation  may be  amended  or
terminated at any time.

REINSTATEMENT PRIVILEGE -- CLASS A SHARES.  Shareholders who have redeemed Class
A shares  of a fund may  reinstate  their  account  without  a sales  charge  by
notifying  the  transfer  agent of such  desire and  forwarding  a check for the
amount  to be  purchased  within  365 days  after  the date of  redemption.  The
reinstatement  will be made at the net asset value per share next computed after
the notice of  reinstatement  and check are  received.  The amount of a purchase
under this  reinstatement  privilege  cannot exceed the amount of the redemption
proceeds.   Gain  on  a  redemption   is  taxable   regardless  of  whether  the
reinstatement  privilege  is  exercised,  although  a  loss  arising  out  of  a
redemption  might  will  not be  deductible  to  the  extent  the  reinstatement
privilege  is  exercised  within 30 days  after  redemption,  in which  event an
adjustment  will be made to the  shareholder's  tax  basis for  shares  acquired
pursuant to the reinstatement privilege.  Gain or loss on a redemption also will
be readjusted  for federal income tax purposes by the amount of any sales charge
paid on Class A shares,  under the  circumstances and to the extent described in
"Taxes -- Special Rules for Class A Shareholders," below.

      WAIVERS  OF  CONTINGENT  DEFERRED  SALES  CHARGES  -- CLASS B SHARES.  The
maximum 5% contingent  deferred  sales charge  applies to sales of shares during
the first year after  purchase.  The charge  generally  declines by 1% annually,
reaching  zero  after six  years.  Among  other  circumstances,  the  contingent
deferred  sales  charge  on Class B shares is  waived  where a total or  partial
redemption is made within one year following the death of the  shareholder.  The
contingent  deferred  sales  charge  waiver is  available  where the decedent is
either the sole shareholder or owns the shares with his or her spouse as a joint
tenant with right of  survivorship.  This waiver  applies only to  redemption of
shares held at the time of death.

      PURCHASES OF CLASS Y SHARES THROUGH THE PACESM MULTI ADVISOR  PROGRAM.  An
investor who  participates  in the PACESM Multi  Advisor  Program is eligible to
purchase Class Y shares. The PACESM Multi Advisor Program is an advisory program
sponsored by PaineWebber that provides comprehensive investment


                                     28
<PAGE>


services, including investor profiling, a personalized asset allocation strategy
using  an  appropriate   combination  of  funds,  and  a  quarterly   investment
performance review. Participation in the PACESM Multi Advisor Program is subject
to payment of an advisory fee at the  effective  maximum  annual rate of 1.5% of
assets.  Employees of PaineWebber and its affiliates are entitled to a waiver of
this fee. Please contact your  PaineWebber  Financial  Advisor or  PaineWebber's
correspondent  firms  for more  information  concerning  mutual  funds  that are
available through the PACE Multi Advisor Program.


      PURCHASES OF CLASS A SHARES THROUGH THE PAINEWEBBER  INSIGHTONESM PROGRAM.
Investors who purchase shares through the PaineWebber  InsightOneSM  Program are
eligible  to  purchase  Class A shares  without a sales  load.  The  PaineWebber
InsightOneSM Program offers a nondiscretionary  brokerage account to PaineWebber
clients for an asset-based fee at an annual rate of up to 1.50% of the assets in
the account.  Account holders may purchase or sell certain  investment  products
without paying commissions or other markups/markdowns.

      PURCHASES AND SALES OF CLASS Y SHARES FOR  PARTICIPANTS  IN PW 401(K) PLUS
PLAN.  The  trustee of the PW 401(k)  Plus  Plan,  a defined  contribution  plan
sponsored  by PW  Group,  buys and sells  Class Y shares  of the funds  that are
included  as  investment  options  under the Plan to  implement  the  investment
choices of  individual  participants  with respect to their Plan  contributions.
Individual  Plan  participants  should consult the Summary Plan  Description and
other plan material of the PW 401(k) Plus Plan (collectively,  "Plan Documents")
for a description  of the procedures  and  limitations  applicable to making and
changing investment choices. Copies of the Plan Documents are available from the
Benefits  Connection,  100 Halfday  Road,  Lincolnshire,  IL 60069 or by calling
1-888-PWEBBER (1-888-793-2237). As described in the Plan Documents, the price at
which  Class Y shares are bought and sold by the  trustee of PW 401(k) Plus Plan
might be more or less than the price per share at the time the participants made
their investment choices.

      ADDITIONAL  EXCHANGE  AND  REDEMPTION  INFORMATION.  As  discussed  in the
Prospectus,  eligible  shares of the funds may be  exchanged  for  shares of the
corresponding  class of most other PaineWebber  mutual funds. Class Y shares are
not eligible for exchange. Shareholders will receive at least 60 days' notice of
any termination or material modification of the exchange offer, except no notice
need be given if, under  extraordinary  circumstances,  either  redemptions  are
suspended under the circumstances described below or the fund temporarily delays
or  ceases  the sales of its  shares  because  it is  unable  to invest  amounts
effectively  in  accordance  with a fund's  investment  objective,  policies and
restrictions.

      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 a fund's net asset  value.  Any
such redemption in kind will be made with readily marketable securities,  to the
extent  available.  If payment is made in  securities,  a shareholder  may incur
brokerage  expenses in  converting  these  securities  into cash.  Each fund has
elected, however, to be governed by Rule 18f-1 under the Investment Company Act,
under which it is obligated to redeem  shares solely in cash up to the lesser of
$250,000  or 1% of its  net  asset  value  during  any  90-day  period  for  one
shareholder. This election is irrevocable unless the SEC permits its withdrawal.

      The  funds 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 a 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 a fund's portfolio at the time.

      SERVICE  ORGANIZATIONS.  A fund may authorize service  organizations,  and
their agents, to accept on its behalf purchase and redemption orders that are in
"good form" in accordance  with the policies of those service  organizations.  A
fund will be deemed to have received these purchase and redemption orders when a
service  organization or its agent accepts them. Like all customer orders, these
orders  will be priced  based on a fund's net asset  value next  computed  after
receipt  of the order by the  service  organizations  or their  agents.  Service
organizations  may include  retirement  plan  service  providers  who  aggregate
purchase and redemption  instructions received from numerous retirement plans or
plan participants.


                                     29
<PAGE>


      AUTOMATIC INVESTMENT PLAN. PaineWebber offers an automatic investment plan
with a minimum initial investment of $1,000 through which a fund will deduct $50
or more on a monthly, quarterly, semi-annual or annual basis from the investor's
bank  account to invest  directly in the fund.  Participation  in the  automatic
investment  plan  enables an  investor  to use the  technique  of  "dollar  cost
averaging." When an investor invests the same dollar amount each month under the
plan,  the investor  will purchase more shares when a fund's net asset value per
share is low and fewer shares when the net asset value per share is high.  Using
this technique,  an investor's  average  purchase price per share over any given
period will be lower than if the investor  purchased a fixed number of shares on
a monthly basis during the period.  Of course,  investing  through the automatic
investment  plan does not assure a profit or protect  against  loss in declining
markets. Additionally, because the automatic investment plan involves continuous
investing  regardless of price levels,  an investor  should  consider his or her
financial  ability to continue  purchases  through  periods of both low and high
price levels.

      SYSTEMATIC   WITHDRAWAL  PLAN.  The  systematic   withdrawal  plan  allows
investors to set up monthly,  quarterly (March,  June,  September and December),
semi-annual  (June and  December) or annual  (December)  withdrawals  from their
PaineWebber  mutual  fund  accounts.   Minimum  balances  and  withdrawals  vary
according to the class of shares:

o           Class A and Class C shares.  Minimum value of fund shares is $5,000;
            minimum withdrawals of $100.

o           Class B shares.  Minimum  value of fund shares is  $10,000;  minimum
            monthly,  quarterly, and semi-annual and annual withdrawals of $100,
            $200, $300 and $400, respectively.

      Withdrawals under the systematic  withdrawal plan will not be subject to a
contingent  deferred sales charge if the investor  withdraws no more than 12% of
the  value of the fund  account  when the  investor  signed up for the Plan (for
Class B shares,  annually; for Class A and Class C shares, during the first year
under  the  Plan).   Shareholders  who  elect  to  receive  dividends  or  other
distributions in cash may not participate in this plan.

      An  investor's  participation  in  the  systematic  withdrawal  plan  will
terminate  automatically if the "Initial Account Balance" (a term that means the
value of the fund account at the time the investor  elects to participate in the
systematic withdrawal plan), less aggregate redemptions made other than pursuant
to the systematic  withdrawal  plan, is less than the minimum  values  specified
above.  Purchases of additional shares of a fund concurrent with withdrawals are
ordinarily  disadvantageous to shareholders  because of tax liabilities and, for
Class A and Class C shares,  initial  sales  charges.  On or about the 20th of a
month for monthly,  quarterly,  semi-annual and annual plans,  PaineWebber  will
arrange for  redemption  by the funds of  sufficient  fund shares to provide the
withdrawal payments specified by participants in a fund's systematic  withdrawal
plan.  The  payments  generally  are mailed  approximately  five  Business  Days
(defined  under  "Valuation of Shares") after the  redemption  date.  Withdrawal
payments  should  not be  considered  dividends,  but  redemption  proceeds.  If
periodic   withdrawals   continually  exceed  reinvested   dividends  and  other
distributions,  a shareholder's  investment may be  correspondingly  reduced.  A
shareholder  may change the amount of the  systematic  withdrawal  or  terminate
participation  in the systematic  withdrawal  plan at any time without charge or
penalty by written  instructions  with  signatures  guaranteed to PaineWebber or
PFPC Inc.  Instructions to participate in the plan, change the withdrawal amount
or terminate  participation  in the plan will not be  effective  until five days
after written  instructions  with  signatures  guaranteed  are received by PFPC.
Shareholders  may request the forms needed to establish a systematic  withdrawal
plan from their PaineWebber  Financial Advisors,  correspondent firms or PFPC at
1-800-647-1568.

      INDIVIDUAL  RETIREMENT ACCOUNTS.  Self-directed IRAs are available through
PaineWebber in which purchases of PaineWebber mutual funds and other investments
may be made. Investors considering  establishing an IRA should review applicable
tax laws and should consult their tax advisers.

      TRANSFER  OF  ACCOUNTS.  If  investors  holding  shares  of  a  fund  in a
PaineWebber brokerage account transfer their brokerage accounts to another firm,
the fund shares  will be moved to an account  with PFPC.  However,  if the other
firm has  entered  into a  selected  dealer  agreement  with  Mitchell  Hutchins
relating  to the fund,  the  shareholder  may be able to hold fund  shares in an
account with the other firm.


                                     30
<PAGE>


PAINEWEBBER RMA RESOURCE ACCUMULATION PLANSM;
PAINEWEBBER RESOURCE MANAGEMENT ACCOUNT(R) (RMA)(R)

      Shares of  PaineWebber  mutual funds (each a "PW Fund" and,  collectively,
the "PW Funds") are available for purchase through the RMA Resource Accumulation
Plan  ("Plan") by  customers  of  PaineWebber  and its  correspondent  firms who
maintain Resource Management Accounts ("RMA accountholders"). The Plan allows an
RMA  accountholder  to  continually  invest  in one or more of the PW  Funds  at
regular intervals, with payment for shares purchased automatically deducted from
the client's RMA account. The client may elect to invest at monthly or quarterly
intervals and may elect either to invest a fixed dollar amount (minimum $100 per
period) or to purchase a fixed number of shares. A client can elect to have Plan
purchases executed on the first or fifteenth day of the month. Settlement occurs
three Business Days (defined under  "Valuation of Shares") after the trade date,
and the  purchase  price of the  shares is  withdrawn  from the  investor's  RMA
account on the settlement  date from the following  sources and in the following
order:  uninvested cash balances,  balances in RMA money market funds, or margin
borrowing power, if applicable to the account.

      To participate in the Plan, an investor must be an RMA accountholder, must
have  made an  initial  purchase  of the  shares  of each PW Fund  selected  for
investment under the Plan (meeting  applicable minimum investment  requirements)
and must complete and submit the RMA Resource Accumulation Plan Client Agreement
and Instruction Form available from PaineWebber. The investor must have received
a current  prospectus  for each PW Fund selected prior to enrolling in the Plan.
Information about mutual fund positions and outstanding  instructions  under the
Plan are noted on the RMA accountholder's account statement.  Instructions under
the Plan may be  changed  at any  time,  but may take up to two  weeks to become
effective.

      The  terms of the Plan,  or an RMA  accountholder's  participation  in the
Plan, may be modified or terminated at any time. It is anticipated  that, in the
future, shares of other PW Funds and/or mutual funds other than the PW Funds may
be offered through the Plan.

      PERIODIC INVESTING AND DOLLAR COST AVERAGING. Periodic investing in the PW
Funds or other  mutual  funds,  whether  through  the Plan or  otherwise,  helps
investors  establish and maintain a disciplined  approach to accumulating assets
over time,  de-emphasizing the importance of timing the market's highs and lows.
Periodic  investing  also permits an investor to take  advantage of "dollar cost
averaging."  By  investing a fixed  amount in mutual fund shares at  established
intervals,  an investor  purchases more shares when the price is lower and fewer
shares  when  the  price  is  higher,  thereby  increasing  his or  her  earning
potential.  Of course,  dollar  cost  averaging  does not  guarantee a profit or
protect  against a loss in a declining  market,  and an investor should consider
his or her financial  ability to continue  investing through periods of both low
and high share  prices.  However,  over time,  dollar cost  averaging  generally
results in a lower average original investment cost than if an investor invested
a larger dollar amount in a mutual fund at one time.

      PAINEWEBBER'S RESOURCE MANAGEMENT ACCOUNT. In order to enroll in the Plan,
an  investor  must have  opened an RMA account  with  PaineWebber  or one of its
correspondent  firms.  The RMA  account  is  PaineWebber's  comprehensive  asset
management  account and offers  investors a number of  features,  including  the
following:

        o   monthly  Premier   account   statements  that  itemize  all  account
            activity, including investment transactions, checking activity

                                    31
<PAGE>


            and Gold  MasterCard(Registered)  transactions during the period,
            and provide  unrealized  and realized gain and loss estimates for
            most securities held in the account;

        o   comprehensive  year-end summary statements that provide  information
            on  account  activity  for  use  in  tax  planning  and  tax  return
            preparation;

        o   automatic  "sweep" of uninvested  cash into the RMA  accountholder's
            choice of one of the six RMA money  market  funds - RMA Money Market
            Portfolio,  RMA U.S.  Government  Portfolio,  RMA Tax-Free Fund, RMA
            California Municipal Money Fund, RMA New Jersey Municipal Money Fund
            and RMA New York  Municipal  Money Fund.  AN  INVESTMENT  IN A MONEY
            MARKET FUND IS NOT  INSURED OR  GUARANTEED  BY THE  FEDERAL  DEPOSIT
            INSURANCE  CORPORATION OR ANY OTHER  GOVERNMENT  AGENCY.  ALTHOUGH A
            MONEY MARKET FUND SEEKS TO PRESERVE THE VALUE OF YOUR  INVESTMENT AT
            $1.00 PER SHARE,  IT IS  POSSIBLE  TO LOSE MONEY BY  INVESTING  IN A
            MONEY MARKET FUND;

        o   check writing,  with no per-check usage charge, no minimum amount on
            checks  and no maximum  number of checks  that can be  written.  RMA
            accountholders can code their checks to classify  expenditures.  All
            canceled checks are returned each month;

        o   Gold  MasterCard,  with or without a line of credit,  which provides
            RMA  accountholders  with direct access to their accounts and can be
            used with automatic teller machines worldwide. Purchases on the Gold
            MasterCard  are debited to the RMA account once monthly,  permitting
            accountholders to remain invested for a longer period of time;

        o   24-hour access to account information through toll-free numbers, and
            more detailed personal assistance during business hours from the RMA
            Service Center;

        o   unlimited electronic funds transfers and bill payment service for an
            additional fee;

        o   expanded account protection for the net equity securities balance in
            the event of the  liquidation of  PaineWebber.  This protection does
            not apply to shares of funds  that are held at PFPC and not  through
            PaineWebber; and

        o   automatic  direct  deposit  of  checks  into  your RMA  account  and
            automatic withdrawals from the account.

      The annual  account fee for an RMA account is $85, which includes the Gold
MasterCard,  with an additional  fee of $40 if the investor  selects an optional
line of credit with the Gold MasterCard.

                         CONVERSION OF CLASS B SHARES

      Class B shares of a fund will  automatically  convert to Class A shares of
that fund, based on the relative net asset values per share of each class, as of
the close of business on the first Business Day (as defined under  "Valuation of
Shares") of the month in which the sixth  anniversary of the initial issuance of
Class B shares  occurs.  For the  purpose  of  calculating  the  holding  period
required for  conversion of Class B shares,  the date of initial  issuance means
(1) the date on which such Class B shares  were issued or (2) for Class B shares
obtained  through an exchange,  or a series of exchanges,  the date on which the
original  Class B shares were  issued.  For  purposes of  conversion  to Class A
shares, Class B shares purchased through the reinvestment of dividends and other
distributions  paid in  respect  of  Class B shares  will be held in a  separate
sub-account.  Each time any Class B shares in the shareholder's  regular account
(other  than those in the  sub-account)  convert  to Class A shares,  a pro rata
portion of the Class B shares in the  sub-account  will also  convert to Class A
shares. The portion will be determined by the ratio that the shareholder's Class
B shares converting to Class A shares bears to the  shareholder's  total Class B
shares not acquired through dividends and other distributions.

      The  conversion  feature is subject to the continuing  availability  of an
opinion of counsel to the effect that the dividends and other distributions paid
on Class A and Class B shares will not result in "preferential

                                   32
<PAGE>


dividends"  under the Internal  Revenue Code and that the  conversion  of shares
does not  constitute a taxable  event.  If the  conversion  feature ceased to be
available,  the Class B shares would not be converted  and would  continue to be
subject  to their  higher  ongoing  expenses  beyond  six years from the date of
purchase.  Mitchell  Hutchins has no reason to believe that this  condition will
not continue to be met.


                             VALUATION OF SHARES

      Each fund  determines  its net asset value per share  separately  for each
class of shares, normally as of the close of regular trading (usually 4:00 p.m.,
Eastern time) on the NYSE on each Business Day,  which is defined as each Monday
through Friday when the NYSE is open. Prices will be calculated earlier when the
NYSE closes early  because  trading has been halted for the day.  Currently  the
NYSE is 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, Thanksgiving Day and Christmas Day.


      Securities  that are listed on  exchanges  normally are valued at the last
sale price on the day the  securities  are valued or,  lacking any sales on such
day, at the last  available bid price.  In cases where  securities are traded on
more than one exchange,  the  securities  are  generally  valued on the exchange
considered by Mitchell Hutchins as the primary market.  Securities traded in the
over-the-counter  market  and  listed  on The  Nasdaq  Stock  Market  ("Nasdaq")
normally  are  valued  at the  last  available  sale  price on  Nasdaq  prior to
valuation;  other  over-the-counter  securities are valued at the last bid price
available  prior to valuation.  Where market  quotations are readily  available,
portfolio  securities  are valued based upon market  quotations,  provided those
quotations  adequately  reflect,  in the judgment of the  sub-adviser,  the fair
value of the security.  Where those market quotations are not readily available,
securities  are valued based upon  appraisals  received  from a pricing  service
using a  computerized  matrix  system  or based  upon  appraisals  derived  from
information   concerning  the  security  or  similar  securities  received  from
recognized  dealers in those  securities.  All other securities and other assets
are valued at fair value as  determined  in good faith by or under the direction
of the board. The amortized cost method of valuation  generally is used to value
debt obligations with 60 days or less remaining until maturity, unless the board
determines that this does not represent fair value.


                           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 and principal
value  of an  investment  will  fluctuate  so that an  investor's  shares,  when
redeemed, may be worth more or less than their original cost.

      TOTAL  RETURN   CALCULATIONS.   Average   annual   total   return   quotes
("Standardized  Return")  used  in the  funds'  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
                      sharesof 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  adversitement  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.  In calculating the ending  redeemable  value,  for Class A shares,  the
maximum  3.0% sales  charge for  Enhanced  S&P 500 Fund or 4.5% sales charge for
Enhanced Nasdaq-100 Fund is deducted from the initial $1,000 payment,  for Class
B  shares,  the  applicable  contingent  deferred  sales  charge  imposed  on  a
redemption  of Class B shares held for the period is deducted  and,  for Class C
shares,  the  applicable  contingent  deferred  sales  charge  is  imposed  on a
redemption  of Class C shares held for a one year period or less.  All dividends
and other distributions are assumed to have been reinvested at net asset value.



                                    33
<PAGE>


      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 and other 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.  Neither
initial  nor  contingent  deferred  sales  charges  are taken  into  account  in
calculating Non-Standardized Return; the inclusion of those charges would reduce
the return.

      Both Standardized  Return and  Non-Standardized  Return for Class B shares
for periods of over six years reflect  conversion of the Class B shares to Class
A shares at the end of the sixth year.

      OTHER INFORMATION.  In Performance  Advertisements,  the funds may compare
their Standardized Return and/or its Non-Standardized Return with data published
by  Lipper  Inc.  ("Lipper"),   CDA  Investment   Technologies,   Inc.  ("CDA"),
Wiesenberger Investment Companies Service  ("Wiesenberger"),  Investment Company
Data,  Inc.  ("ICD") or Morningstar  Mutual funds  ("Morningstar"),  or with the
performance of recognized stock, bond and other indices,  including the Standard
& Poor's 500  Composite  Stock  Index  ("S&P  500"),  the  Standard & Poor's 600
Small-Cap  Index,  the  Standard  & Poor's  400  Mid-Cap  Index,  the Dow  Jones
Industrial  Average ("DJIA"),  the Nasdaq Composite Index, the Nasdaq-100 Index,
the Russell  2000  Index,  the Russell  1000 Index  (including  Value and Growth
sub-indexes),  the  Wilshire  5000 Index,  the Lehman  Bond  Index,  30-year and
10-year U.S.  Treasury  bonds,  the Morgan Stanley Capital  International  World
Index  and  changes  in the  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,  Wiesenberger,  ICD  or  Morningstar.
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  include  discussions  or  illustrations  of the  effects of
compounding  in  Performance  Advertisements.  "Compounding"  refers to the fact
that, if dividends or other  distributions on the fund investment are reinvested
in additional fund shares, any future income or capital appreciation of the fund
would increase the value, not only of the original fund investment,  but also of
the additional fund shares received through reinvestment. As a result, the value
of the fund  investment  would  increase more quickly than if dividends or other
distributions had been paid in cash.

      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, the Bank Rate Monitor National Index and the averages of yields of CDs of
major banks  published by  Banxquote(R)  Money Markets.  In comparing the funds'
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.  Shares of the funds are not insured or  guaranteed by the U.S.
government and returns and net asset values will fluctuate.  The debt securities
held by the fund generally have longer  maturities than most CDs and may reflect
interest rate fluctuations for longer term debt securities. An investment in any
fund involves  greater risks than an investment in either a money market fund or
a CD.


                                     34
<PAGE>


      The funds may also  compare  their  performance  to general  trends in the
stock and bond  markets,  as  illustrated  by the  following  graph  prepared by
Ibbotson Associates, Chicago.


                          IBBOTSON CHART PLOT POINTS

    Chart showing performance of S&P 500, long-term U.S. government bonds,
             Treasury Bills and inflation from 1925 through 1999

  YEAR     COMMON STOCKS   LONG-TERM GOV'T BONDS   INFLATION/CPI  TREASURY BILLS

  1925        $10,000             $10,000            $10,000          $10,000
  1926        $11,162             $10,777             $9,851          $10,327
  1927        $15,347             $11,739             $9,646          $10,649
  1928        $22,040             $11,751             $9,553          $11,028
  1929        $20,185             $12,153             $9,572          $11,552
  1930        $15,159             $12,719             $8,994          $11,830
  1931         $8,590             $12,044             $8,138          $11,957
  1932         $7,886             $14,073             $7,300          $12,072
  1933        $12,144             $14,062             $7,337          $12,108
  1934        $11,969             $15,472             $7,486          $12,128
  1935        $17,674             $16,243             $7,710          $12,148
  1936        $23,669             $17,464             $7,803          $12,170
  1937        $15,379             $17,504             $8,045          $12,207
  1938        $20,165             $18,473             $7,821          $12,205
  1939        $20,082             $19,570             $7,784          $12,208
  1940        $18,117             $20,761             $7,859          $12,208
  1941        $16,017             $20,955             $8,622          $12,216
  1942        $19,275             $21,629             $9,423          $12,248
  1943        $24,267             $22,080             $9,721          $12,291
  1944        $29,060             $22,702             $9,926          $12,332
  1945        $39,649             $25,139            $10,149          $12,372
  1946        $36,449             $25,113            $11,993          $12,416
  1947        $38,529             $24,454            $13,073          $12,478
  1948        $40,649             $25,285            $13,426          $12,580
  1949        $48,287             $26,916            $13,184          $12,718
  1950        $63,601             $26,932            $13,948          $12,870
  1951        $78,875             $25,873            $14,767          $13,063
  1952        $93,363             $26,173            $14,898          $13,279
  1953        $92,439             $27,125            $14,991          $13,521
  1954       $141,084             $29,075            $14,916          $13,638
  1955       $185,614             $28,699            $14,972          $13,852
  1956       $197,783             $27,096            $15,400          $14,193
  1957       $176,457             $29,117            $15,866          $14,639
  1958       $252,975             $27,342            $16,145          $14,864
  1959       $283,219             $26,725            $16,387          $15,303
  1960       $284,549             $30,407            $16,629          $15,711
  1961       $361,060             $30,703            $16,741          $16,045
  1962       $329,545             $32,818            $16,946          $16,483


                                       35
<PAGE>


  YEAR     COMMON STOCKS   LONG-TERM GOV'T BONDS   INFLATION/CPI  TREASURY BILLS

  1963       $404,685             $33,216            $17,225          $16,997
  1964       $471,388             $34,381            $17,430          $17,598
  1965       $530,081             $34,625            $17,765          $18,289
  1966       $476,737             $35,889            $18,361          $19,159
  1967       $591,038             $32,594            $18,920          $19,966
  1968       $656,415             $32,509            $19,814          $21,005
  1969       $600,590             $30,860            $21,024          $22,388
  1970       $624,653             $34,596            $22,179          $23,849
  1971       $714,058             $39,173            $22,924          $24,895
  1972       $849,559             $41,400            $23,706          $25,851
  1973       $725,003             $40,942            $25,792          $27,643
  1974       $533,110             $42,725            $28,939          $29,855
  1975       $731,443             $46,653            $30,969          $31,588
  1976       $905,842             $54,470            $32,458          $33,193
  1977       $840,766             $54,095            $34,656          $34,893
  1978       $895,922             $53,458            $37,784          $37,398
  1979     $1,061,126             $52,799            $42,812          $41,279
  1980     $1,405,137             $50,715            $48,120          $45,917
  1981     $1,336,161             $51,657            $52,421          $52,671
  1982     $1,622,226             $72,507            $54,451          $58,224
  1983     $1,987,451             $72,979            $56,518          $63,347
  1984     $2,111,991             $84,274            $58,753          $69,586
  1985     $2,791,166            $110,371            $60,968          $74,960
  1986     $3,306,709            $137,446            $61,657          $79,580
  1987     $3,479,675            $133,716            $64,376          $83,929
  1988     $4,064,583            $146,650            $67,221          $89,257
  1989     $5,344,555            $173,215            $70,345          $96,728
  1990     $5,174,990            $183,924            $74,640         $104,286
  1991     $6,755,922            $219,420            $76,927         $110,121
  1992     $7,274,115            $237,092            $79,159         $113,982
  1993     $8,000,785            $280,339            $81,334         $117,284
  1994     $8,105,379            $258,556            $83,510         $121,862
  1995    $11,139,184            $340,435            $85,630         $128,680
  1996    $13,709,459            $337,265            $88,475         $135,381
  1997    $18,272,762            $390,735            $89,897         $142,496
  1998    $23,495,420            $441,777            $91,513         $149,416
  1999    $28,456,286            $402,177            $93,998         $156,414


      Source:  STOCKS,  BONDS,  BILLS AND INFLATION  1999  YEARBOOKTM,  Ibbotson
Assoc., Chi., (annual updates work by Roger G. Ibbotson & Rex A. Sinquefield).


      The chart is shown for  illustrative  purposes only and does not represent
any fund's performance. These returns consist of income and capital appreciation
(or  depreciation)  and should not be  considered  an indication or guarantee of
future investment  results.  These returns do not account for transaction costs.
Year-to-year  fluctuations in certain markets have been significant and negative
returns have been  experienced in certain markets from time to time.  Stocks are
measured by the S&P 500, an unmanaged  weighted index comprising 500 widely held
common  stocks and varying in  composition.  Unlike  investors in bonds and U.S.
Treasury bills,  common stock investors do not receive fixed income payments and
are not entitled to repayment of  principal.  These  differences  contribute  to
investment risk. Returns shown for long-term  government bonds are based on U.S.
Treasury  bonds with 20-year  maturities.  Inflation is measured by the Consumer
Price Index. The indexes are unmanaged and are not available for investment.

      Over time, although subject to greater risks and higher volatility, stocks
have outperformed all other investments by a wide margin, offering a solid hedge
against  inflation.  From January 1, 1926 to December 31, 1999,  stocks beat all
other traditional asset classes.  A $10,000  investment in the stocks comprising
the S&P 500 grew to $28,456,286, significantly more than any other investment.


                                    TAXES

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


                                     35A
<PAGE>


      SALE OR EXCHANGE OF FUND SHARES. A shareholder's sale (redemption) of fund
shares  may  result  in a  taxable  gain  or  loss,  depending  on  whether  the
shareholder  receives more or less than his or her adjusted basis for the shares
(which  normally  includes any initial sales charge paid on Class A shares).  An
exchange of either fund's shares for shares of another  PaineWebber  mutual fund
generally will have similar tax  consequences.  In addition,  if a fund's shares
are  bought  within 30 days  before or after  selling  other  shares of the fund
(regardless  of  class)  at a loss,  all or a  portion  of that loss will not be
deductible and will increase the basis of the newly purchased shares.

      SPECIAL RULE FOR CLASS A  SHAREHOLDERS.  A special tax rule applies when a
shareholder  sells or  exchanges  Class A shares  within 90 days of purchase and
subsequently  acquires  Class A shares of a fund or another  PaineWebber  mutual
fund without paying a sales charge due to the 365-day reinstatement privilege or
the exchange privilege.  In these cases, any gain on the sale or exchange of the
original Class A shares would be increased,  or any loss would be decreased,  by
the amount of the sales  charge  paid when those  shares were  bought,  and that
amount  would  increase  the  basis  of  the  PaineWebber   mutual  fund  shares
subsequently acquired.

      CONVERSION OF CLASS B SHARES. A shareholder will recognize no gain or loss
as a result of a conversion from Class B shares to Class A shares.


      QUALIFICATION  AS A REGULATED  INVESTMENT  COMPANY.  Each fund  intends to
qualify  for  treatment  as a regulated  investment  company  ("RIC")  under the
Internal  Revenue  Code.  To so  qualify,  each  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  gain)  ("Distribution  Requirement")  and must meet several  additional
requirements.  These additional requirements include 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,  or other income (including gains from options
or futures)  derived with  respect to its  business of  investing in  securities
("Income  Requirement");  (2) at the close of each  quarter of a 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 that does not
represent more than 10% of the issuer's  outstanding voting securities;  and (3)
at the close of each quarter of a 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.  By
qualifying  as a RIC,  a fund (but not its  shareholders)  will be  relieved  of
federal income tax on the part of its investment  company taxable income and net
capital gain (I.E., the excess of net long-term capital gain over net short-term
capital  loss) that it  distributes  to its  shareholders).  If a fund failed to
qualify for treatment as a RIC for any taxable year, (a) it would be taxed as an
ordinary  corporation  on 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, including distributions of net capital gain
(the excess of net long-term capital gain over net short-term  capital loss), as
dividends  (that is,  ordinary  income) to the extent of the fund's earnings and
profits.  In addition,  a fund could be required to recognize  unrealized gains,
pay substantial  taxes and interest and make  substantial  distributions  before
requalifying for RIC treatment.


      OTHER INFORMATION. Dividends and other distributions declared by a fund in
December  of any year and  payable to  shareholders  of record on a date in that
month  will be  deemed  to  have  been  paid by the  fund  and  received  by the
shareholders on December 31 if the distributions are paid by the fund during the
following January.

      A portion of the dividends  from each fund's  investment  company  taxable
income  (whether paid in cash or in  additional  shares) may be eligible for the
dividends-received  deduction allowed to corporations.  The eligible portion may
not exceed the aggregate  dividends  received by a fund from U.S.  corporations.
However,  dividends  received  by a  corporate  shareholder  and  deducted by it
pursuant  to the  dividends-received  deduction  are subject  indirectly  to the
federal alternative minimum tax.

      If fund shares are sold at a loss after being held for six months or less,
the loss will be treated as long-term,  instead of  short-term,  capital loss to
the extent of any capital gain  distributions  received thereon.  Investors also
should be aware that if shares are purchased  shortly before the record date for
a dividend or capital gain distribution, the shareholder will pay full price for
the shares and receive some portion of the price back as a taxable distribution.


                                     36
<PAGE>


      Each fund will be subject to a nondeductible  4% excise tax ("Excise Tax")
to the  extent  it  fails  to  distribute  by  the  end  of  any  calendar  year
substantially  all of its ordinary income for the calendar year and capital gain
net  income for the  one-year  period  ending on  October 31 of that year,  plus
certain other amounts.

      The use of hedging strategies  involving Derivative  Instruments,  such as
writing (selling) and purchasing options and futures contracts, involves complex
rules that will  determine  for income tax  purposes the amount,  character  and
timing of  recognition  of the gains and losses the fund  realizes in connection
therewith.  Gains from  options and futures  derived by the fund with respect to
its business of investing in securities will qualify as permissible income under
the Income Requirements.

      Offsetting  positions in any actively traded  security,  option or futures
entered into or held by a fund may  constitute a "straddle"  for federal  income
tax purposes. Straddles are subject to certain rules that may affect the amount,
character  and timing of a fund's  gains and losses with respect to positions of
the  straddle  by  requiring,  among  other  things,  that (1) loss  realized on
disposition  of one  position  of a straddle  be  deferred  to the extent of any
unrealized gain in an offsetting  position until the latter position is disposed
of, (2) a fund's  holding period in certain  straddle  positions not begin until
the  straddle  is  terminated  (possibly  resulting  in gain  being  treated  as
short-term  rather than long-term  capital gain) and (3) losses  recognized with
respect  to  certain  straddle   positions,   that  otherwise  would  constitute
short-term  capital losses, be treated as long-term  capital losses.  Applicable
regulations also provide certain "wash sale" rules,  which apply to transactions
where a position  is sold at a loss and a new  offsetting  position  is acquired
within a prescribed  period,  and "short sale" rules  applicable  to  straddles.
Different  elections are available to the funds,  which may mitigate the effects
of the straddle rules,  particularly  with respect to "mixed straddles" (I.E., a
straddle  of  which at  least  one,  but not all,  positions  are  section  1256
contracts).

      When a covered call option written (sold) by a fund expires, it realizes a
short-term  capital  gain equal to the amount of the  premium  it  received  for
writing the option.  When a fund terminates its obligations under such an option
by entering into a closing  transaction,  it realizes a short-term  capital gain
(or loss),  depending on whether the cost of the closing transaction is less (or
more) than the premium it received when it wrote the option. When a covered call
option  written by a fund is  exercised,  the fund is treated as having sold the
underlying  security,  producing  long-term or short-term  capital gain or loss,
depending on the holding period of the  underlying  security and whether the sum
of the option price  received on the exercise plus the premium  received when it
wrote the option is more or less than the basis of the underlying security.

      If a fund has an "appreciated financial position"-- generally, an interest
(including an interest through an option, futures or short sale) with respect to
any stock, debt instrument (other than "straight debt") or partnership  interest
the fair market  value of which  exceeds its adjusted  basis--and  enters into a
"constructive sale" of the position,  the fund will be treated as having made an
actual sale thereof,  with the result that gain will be recognized at that time.
A constructive sale generally  consists of a short sale, an offsetting  notional
principal  contract or a futures  contract entered into by the fund or a related
person  with  respect  to the  same  or  substantially  identical  property.  In
addition, if the appreciated financial position is itself a short sale or such a
contract,  acquisition of the  underlying  property or  substantially  identical
property  will be deemed a  constructive  sale.  The  foregoing  will not apply,
however, to a fund's transaction during any taxable year that otherwise would be
treated as a constructive sale if the transaction is closed within 30 days after
the end of that  year and the fund  holds  the  appreciated  financial  position
unhedged  for 60 days after that  closing  (i.e.,  at no time during that 60-day
period is a fund's risk of loss  regarding  that  position  reduced by reason of
certain  specified  transactions  with  respect to  substantially  identical  or
related  property,  such as  having  an  option  to  sell,  being  contractually
obligated  to  sell,   making  a  short  sale  or  granting  an  option  to  buy
substantially identical stock or securities).

      The foregoing is only a general  summary of some of the important  federal
tax  considerations  generally  affecting the funds and their  shareholders.  No
attempt is made to present a complete  explanation  of the federal tax treatment
of the funds'  activities,  and this  discussion is not intended as a substitute
for careful tax planning. Accordingly,  potential investors are urged to consult
their  own tax  advisers  for  more  detailed  information  and for  information
regarding  any  state,  local or  foreign  taxes  applicable  to the fund and to
dividends and other distributions therefrom.


                                     37
<PAGE>


                              OTHER INFORMATION

      DELAWARE BUSINESS TRUST. The Trust is an entity of the type commonly known
as a Delaware  business  trust.  Although  Delaware law  statutorily  limits the
potential  liabilities of a Delaware  business trust's  shareholders to the same
extent  as it  limits  the  potential  liabilities  of a  Delaware  corporation,
shareholders of the funds could,  under certain conflicts of laws  jurisprudence
in various states, be held personally liable for the obligations of the Trust or
the funds. However, the Trust's trust instrument disclaims shareholder liability
for acts or obligations of the Trust or its series (the funds) and requires that
notice of such disclaimer be given in each written  obligation made or issued by
the  trustees  or by any  officers  or officer  by or on behalf of the Trust,  a
series,  the  trustees or any of them in  connection  with the Trust.  The trust
instrument provides for indemnification from each fund's property for all losses
and  expenses  of  any  series   shareholder  held  personally  liable  for  the
obligations of the funds. 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
Mitchell  Hutchins  believes  is remote and not  material.  Upon  payment of any
liability  incurred by a shareholder  solely by reason of being or having been a
shareholder of a fund, 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 funds.

      Delaware law gives shareholders of the Trust the right to obtain a current
list  of  the  names  and  last  known  mailing  address  of the  Trust's  other
shareholders, subject to reasonable standards established by the board governing
the time,  location  and  expense of  providing  the  relevant  information  and
documents.

      CLASSES  OF  SHARES.  A share of each  class of each  fund  represents  an
identical  interest  in its  investment  portfolio  and  has  the  same  rights,
privileges and preferences. However, each class may differ with respect to sales
charges,  if any,  distribution  and/or  service  fees, if any,  other  expenses
allocable  exclusively  to each  class,  voting  rights on  matters  exclusively
affecting that class,  and its exchange  privilege,  if any. The different sales
charges and other  expenses  applicable to the different  classes of shares of a
fund will  affect  the  performance  of those  classes.  Each share of a fund is
entitled  to  participate  equally in  dividends,  other  distributions  and the
proceeds of any liquidation of that fund. However, due to the differing expenses
of the classes, dividends and liquidation proceeds on Class A, B, C and Y shares
will differ.

      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 of the trustees of the Trust.  The shares of a
fund will be voted together,  except that only the  shareholders of a particular
class of a fund may vote on matters affecting only that class, such as the terms
of a Rule 12b-1 Plan as it relates to the class.

      The funds do not hold annual  meetings.  Shareholders of record of no less
than  two-thirds  of the  outstanding  shares of the Trust may  remove a trustee
through  a  declaration  in  writing  or 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 the  trustee at the  written  request  of  holders of 10% of the  outstanding
shares of the Trust.

      CLASS-SPECIFIC  EXPENSES.  Each fund may determine to allocate  certain of
its  expenses  to the  specific  classes of that  fund's  shares to which  those
expenses are attributable.  For example,  Class B and Class C shares bear higher
transfer  agency  fees per  shareholder  account  than those borne by Class A or
Class Y shares.  The higher fee is imposed due to the higher  costs  incurred by
the transfer  agent in tracking  shares  subject to a contingent  deferred sales
charge because,  upon redemption,  the duration of the shareholder's  investment
must be  determined to determine the  applicable  charge.  Although the transfer
agency fee will  differ on a per account  basis as stated  above,  the  specific
extent to which the  transfer  agency fees will differ  between the classes as a
percentage of net assets is not certain,  because the fee as a percentage of net
assets will be affected by the number of shareholder  accounts in each class and
the relative amounts of net assets in each class.

      CUSTODIAN AND  RECORDKEEPING  AGENT;  TRANSFER AND DIVIDEND  AGENT.  State
Street Bank and Trust Company, located at One Heritage Drive, North Quincy,


                                     38
<PAGE>


Massachusetts  02171, serves as custodian and recordkeeping agent for each fund.
PFPC Inc., a subsidiary of PNC Bank,  N.A.,  serves as each fund's  transfer and
dividend disbursing agent. It is located at 400 Bellevue Parkway, Wilmington, DE
19809.

      COUNSEL.  The law firm of  Kirkpatrick & Lockhart LLP, 1800  Massachusetts
Avenue,  N.W.,  Washington,  D.C.  20036-1800,  serves as  counsel to the funds.
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 funds.


                                     39
<PAGE>



                             FINANCIAL STATEMENTS

                      MITCHELL HUTCHINS SECURITIES TRUST
                      PAINEWEBBER ENHANCED S&P 500 FUND

                     STATEMENT OF ASSETS AND LIABILITIES
                                MARCH 1, 2000

   Assets:
          Cash                                    $    50,000
          Deferred offering expenses                  115,000
          Prepaid expenses                             94,000
                                                 ------------

               Total assets                           259,000
                                                      -------

   Liabilities:
          Offering expenses payable                   115,000
          Payable to adviser                           94,000
                                                       ------

               Total liabilities                      209,000
                                                      -------

   Net Assets (beneficial interest, $0.001 par    $    50,000
      value, issued and outstanding)              ===========

   CLASS A:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and redemption value per       $     10.00
                                                  ===========
      share
   Maximum offering price per share (net asset
      value plus sales charge of 3.00% of         $     10.31
                                                  ===========
      offering price)

   CLASS B:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and offering price per share   $     10.00
                                                  ===========

   CLASS C:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and offering price per share   $     10.00
                                                  ===========

   CLASS Y:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value, offering price and            $     10.00
                                                  ===========
      redemption value per share

ORGANIZATION

      PaineWebber  Enhanced  S&P 500 Fund  ("Fund") is a  diversified  series of
Mitchell Hutchins Securities Trust ("Trust"),  an open-end management investment
company  organized as a Delaware  business  trust on December 23, 1999. The Fund
has had no operations other than the sale to Mitchell  Hutchins Asset Management
Inc. ("Mitchell Hutchins"), the investment adviser, a wholly owned subsidiary of
PaineWebber Incorporated ("PaineWebber"), of 1,250 shares



                                     40
<PAGE>



of  beneficial  interest of Class A for the amount of $12,500,  1,250  shares of
beneficial  interest  of Class B for the  amount  of  $12,500,  1,250  shares of
beneficial  interest  of Class C for the amount of $12,500  and 1,250  shares of
beneficial interest of Class Y for the amount of $12,500, on March 1, 2000. Each
class  represents  assets of the Fund, and the classes are identical  except for
differences in ongoing service and distribution fees and certain transfer agency
expenses.  The trustees of the Trust have authority to issue an unlimited number
of shares of beneficial interest, par value $0.001 per share. Class Y shares are
currently offered for sale only to limited groups of investors.

      Costs  incurred  and to be incurred in  connection  with the  offering and
initial  registration of the Trust will be paid initially by Mitchell  Hutchins;
however,  the Trust will reimburse  Mitchell Hutchins for such costs. Such costs
will be expensed over the first year of the Fund.  Costs  incurred in organizing
the fund will be borne by the adviser.

MANAGEMENT AGREEMENT

      Mitchell Hutchins acts as the investment  adviser and administrator to the
Fund pursuant to a contract (the "Advisory Contract") with the Trust dated March
1, 2000.  Under the Advisory  Contract,  the Fund pays Mitchell  Hutchins a fee,
computed daily and paid monthly, at an annual rate of 0.40% of average daily net
assets.

DISTRIBUTION ARRANGEMENTS

      Mitchell  Hutchins is the  distributor  of each class of the Fund's shares
and has  appointed  PaineWebber  as the  exclusive  dealer for the sale of those
shares.

      Under separate plans of  distribution  pertaining to the Class A, Class B,
Class C and  Class Y  shares  of the Fund  adopted  by the  Trust in the  manner
prescribed   under  Rule  12b-1   under  the   Investment   Company  Act  (each,
respectively,  a "Class  A  Plan,"  "Class  B Plan"  and  "Class  C  Plan,"  and
collectively,  "Plans"),  the fund pays Mitchell Hutchins a service fee, accrued
daily and payable monthly,  at the annual rate of 0.25% of the average daily net
assets of each class of shares. Under the Class B Plan and the Class C Plan, the
Fund pays  Mitchell  Hutchins a  distribution  fee,  accrued  daily and  payable
monthly,  at the  annual  rate of 0.40% of the  average  daily net assets of the
Class B shares and the Class C shares,  respectively.  There is no  distribution
plan with respect to the Fund's Class Y shares,  and the Fund pays no service or
distribution fees with respect to its Class Y shares.



                                     41
<PAGE>



                      MITCHELL HUTCHINS SECURITIES TRUST
                     PAINEWEBBER ENHANCED NASDAQ-100 FUND

                     STATEMENT OF ASSETS AND LIABILITIES
                                MARCH 1, 2000

   Assets:
          Cash                                    $    50,000
          Deferred offering expenses                  115,000
          Prepaid expenses                             97,000
                                                 ------------

               Total assets                           262,000
                                                      -------

   Liabilities:
          Offering expenses payable                   115,000
          Payable to adviser                           97,000
                                                       ------

               Total liabilities                      212,000
                                                      -------

   Net Assets (beneficial interest, $0.001 par    $    50,000
      value, issued and outstanding)                   ======

   CLASS A:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and redemption value per       $     10.00
                                                  ===========
      share
   Maximum offering price per share (net asset
      value plus sales charge of 4.50% of         $     10.47
                                                  ===========
      offering price)

   CLASS B:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and offering price per share   $     10.00
                                                  ===========

   CLASS C:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value and offering price per share   $     10.00
                                                  ===========

   CLASS Y:
   Net Assets                                     $    12,500
                                                  -----------
   Shares outstanding                                   1,250
                                                  -----------
   Net asset value, offering price and            $     10.00
                                                  ===========
      redemption value per share


ORGANIZATION

      PaineWebber Enhanced Nasdaq-100 Fund ("Fund") is a non-diversified  series
of  Mitchell  Hutchins  Securities  Trust  ("Trust"),   an  open-end  management
investment  company organized as a Delaware business trust on December 23, 1999.
The Fund has had no operations  other than the sale to Mitchell  Hutchins  Asset
Management Inc. ("Mitchell Hutchins"), the investment adviser, a wholly



                                     42
<PAGE>



owned subsidiary of PaineWebber Incorporated ("PaineWebber"), of 1,250 shares of
beneficial  interest  of Class A for the  amount  of  $12,500,  1,250  shares of
beneficial  interest  of Class B for the  amount  of  $12,500,  1,250  shares of
beneficial  interest  of Class C for the amount of $12,500  and 1,250  shares of
beneficial interest of Class Y for the amount of $12,500, on March 1, 2000. Each
class  represents  assets of the Fund, and the classes are identical  except for
differences in ongoing service and distribution fees and certain transfer agency
expenses.  The trustees of the Trust have authority to issue an unlimited number
of shares of beneficial interest, par value $0.001 per share. Class Y shares are
currently offered for sale only to limited groups of investors.

      Costs  incurred  and to be incurred in  connection  with the  offering and
initial  registration of the Trust will be paid initially by Mitchell  Hutchins;
however,  the Trust will reimburse  Mitchell Hutchins for such costs. Such costs
will be expensed over the first year of the Fund.  Costs  incurred in organizing
the fund will be borne by the adviser.

MANAGEMENT AGREEMENT

      Mitchell Hutchins acts as the investment  adviser and administrator to the
Fund pursuant to a contract (the "Advisory Contract") with the Trust dated March
1, 2000.  Under the Advisory  Contract,  the Fund pays Mitchell  Hutchins a fee,
computed daily and paid monthly, at an annual rate of 0.75% of average daily net
assets.

DISTRIBUTION ARRANGEMENTS

      Mitchell  Hutchins is the  distributor  of each class of the Fund's shares
and has  appointed  PaineWebber  as the  exclusive  dealer for the sale of those
shares.

      Under separate plans of  distribution  pertaining to the Class A, Class B,
Class C and  Class Y  shares  of the Fund  adopted  by the  Trust in the  manner
prescribed   under  Rule  12b-1   under  the   Investment   Company  Act  (each,
respectively,  a "Class  A  Plan,"  "Class  B Plan"  and  "Class  C  Plan,"  and
collectively,  "Plans"),  the fund pays Mitchell Hutchins a service fee, accrued
daily and payable monthly,  at the annual rate of 0.25% of the average daily net
assets of each class of shares. Under the Class B Plan and the Class C Plan, the
Fund pays  Mitchell  Hutchins a  distribution  fee,  accrued  daily and  payable
monthly,  at the  annual  rate of 0.75% of the  average  daily net assets of the
Class B shares and the Class C shares,  respectively.  There is no  distribution
plan with respect to the Fund's Class Y shares,  and the Fund pays no service or
distribution fees with respect to its Class Y shares.



                                     43
<PAGE>



                        REPORT OF INDEPENDENT AUDITORS

To the Board of Trustees and Shareholders
Mitchell Hutchins Securities Trust

      We have audited the  accompanying  statements of assets and liabilities of
the Mitchell Hutchins Securities Trust (comprising, PaineWebber Enhanced S&P 500
Fund and  PaineWebber  Enhanced  Nasdaq-100  Fund) (the  "Trust") as of March 1,
2000. These statements of assets and liabilities are the  responsibility  of the
Trust's  management.  Our  responsibility  is to  express  an  opinion  on these
statements of assets and liabilities based on our audits.

      We conducted our audits in accordance  with auditing  standards  generally
accepted in the United States.  Those standards require that we plan and perform
the audit to obtain  reasonable  assurance about whether the statement of assets
and liabilities is free of material  misstatement.  An audit includes examining,
on a  test  basis,  evidence  supporting  the  amounts  and  disclosures  in the
statement  of assets and  liabilities.  An audit  also  includes  assessing  the
accounting principles used and significant estimates made by management, as well
as evaluating the overall statement of assets and liabilities  presentation.  We
believe that our audits provide a reasonable basis for our opinion.

      In our opinion, the statements of assets and liabilities referred to above
present fairly,  in all material  respects,  the financial  position of Mitchell
Hutchins  Securities  Trust at March 1,  2000,  in  conformity  with  accounting
principles generally accepted in the United States.

                                    /s/ ERNST & YOUNG LLP
                                    ---------------------
                                    ERNST & YOUNG LLP



New York, New York
March 1, 2000






<PAGE>



YOU  SHOULD  RELY ONLY ON THE  INFORMATION
CONTAINED OR REFERRED TO IN THE PROSPECTUS
AND   THIS    STATEMENT   OF    ADDITIONAL
INFORMATION.  THE FUND AND ITS DISTRIBUTOR
HAVE NOT AUTHORIZED  ANYONE TO PROVIDE YOU
WITH  INFORMATION  THAT IS DIFFERENT.  THE
PROSPECTUS    AND   THIS    STATEMENT   OF
ADDITIONAL INFORMATION ARE NOT AN OFFER TO
SELL   SHARES   OF   THE   FUND   IN   ANY                           PaineWebber
JURISDICTION   WHERE   THE   FUND  OR  ITS                 Enhanced S&P 500 Fund
DISTRIBUTOR  MAY NOT  LAWFULLY  SELL THOSE              Enhanced Nasdaq-100 Fund
SHARES.







          ____________









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

                                           Statement of Additional Information
                                                            March       , 2000
                                      ------------------------------------------






                                                                   PAINEWEBBER



(C)2000 PaineWebber Incorporated. All rights reserved.

<PAGE>


                                      C-5
<PAGE>


                                 PART C. OTHER INFORMATION

Item 23.  Exhibits
          --------


(1)  (a)  Trust Instrument 1/

     (b)  Amendment  to Trust  Instrument  effective  February  8, 2000  (filed
          herewith)


(2)  By-Laws  1/

(3)  Instruments defining the rights of holders of Registrant's shares of
     beneficial interest 2/

(4)  (a)  Investment Advisory and Administration Contract (filed herewith)

     (b)  Sub-Advisory Contract relating to PaineWebber Enhanced S&P 500 Fund
          (filed herewith)

     (c)  Sub-Advisory Contract relating to PaineWebber Enhanced Nasdaq-100 Fund
          (filed herewith)

(5)  (a)  Distribution Contract (Class A Shares ) (filed herewith)

     (b)  Distribution Contract (Class B Shares ) (filed herewith)

     (c)  Distribution Contract (Class C Shares ) (filed herewith)

     (d)  Distribution Contract (Class Y Shares) (filed herewith)

     (e)  Exclusive Dealer Agreement (Class A Shares) (filed herewith)

     (f)  Exclusive Dealer Agreement (Class B Shares) (filed herewith)

     (g)  Exclusive Dealer Agreement (Class C Shares) (filed herewith)

     (h)  Exclusive Dealer Agreement (Class Y Shares) (filed herewith)


(6)  Bonus,  profit  sharing  or  pension  plans - none


(7)  Form of  Custodian Agreement  (filed  herewith)

(8)  Form  of  Transfer  Agency  Agreement  (filed herewith)

(9)  Opinion and consent of counsel (filed herewith)

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


(11) Financial  Statements  omitted from Part B - none


(12) Letter of investment intent (filed herewith)

(13) (a)  Rule 12b-1 Plan of Distribution with respect to Class A Shares
          (filed herewith)

     (b)  Rule 12b-1 Plan of Distribution with respect to Class B Shares
          (filed herewith)

     (c)  Rule 12b-1 Plan of Distribution with respect to Class C Shares
          (filed herewith)


(14) and

(27) Financial Data Schedule (not applicable)


(15) Plan Pursuant to Rule 18f-3 (filed herewith)

(16) (a)  Code of Ethics for Mitchell Hutchins Securities Trust and Mitchell
          Hutchins Asset Management Inc. (to be filed)

     (b)  Code of Ethics for DSI International Management, Inc. (to be filed)

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


                                      C-1
<PAGE>

1/   Incorporated by Registrant's  initial  registration statement, SEC File No.
     333-94065, filed December 23, 1999.

2/   Incorporated by reference from  Articles  IV, VI, IX and X of  Registrant's
     Trust Instrument and from Articles VI and IX of Registrant's By-Laws.


Item 24. Persons Controlled by or Under Common Control with Registrant
         -------------------------------------------------------------


         Until  PaineWebber  Enhanced  S&P 500  Fund  and  PaineWebber  Enhanced
Nasdaq-100  Fund  each  have  public   shareholders,   Mitchell  Hutchins  Asset
Management Inc. ("Mitchell Hutchins") is a controlling person of each Fund.


Item 25. Indemnification
         ---------------

         Section 2 of  Article  IX of the Trust  Instrument,  "Indemnification,"
provides  that the  appropriate  series of the  Registrant  will  indemnify  the
trustees and officers of the Registrant to the fullest  extent  permitted by law
against  claims and expenses  asserted  against or incurred by them by virtue of
being or having been a trustee or officer; provided that no such person shall be
indemnified  where there has been an  adjudication  or other  determination,  as
described  in Article IX, that such  person is liable to the  Registrant  or its
shareholders by reason of willful  misfeasance,  bad faith,  gross negligence or
reckless disregard of the duties involved in the conduct of his or her office or
did not act in good faith in the  reasonable  belief  that his action was in the
best interest of the Registrant.  Section 2 of Article IX also provides that the
Registrant   may   maintain   insurance   policies   covering   such  rights  of
indemnification.

         Additionally,  "Limitation  of Liability" in Section 1 of Article IX of
the Trust  Instrument  provides that the trustees or officers of the  Registrant
shall not be personally  liable to any person extending  credit to,  contracting
with or having a claim against the Registrant or a particular  series; and that,
provided they have exercised reasonable care and have acted under the reasonable
belief  that their  actions  are in the best  interest  of the  Registrant,  the
trustees and officers  shall not be liable for neglect or  wrongdoing by them or
any officer,  agent,  employee,  investment adviser or independent contractor of
the Registrant.

         Section 9 of the Investment  Advisory and Administration  Contract with
Mitchell  Hutchins  provides that Mitchell  Hutchins 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 Mitchell  Hutchins in the  performance  of its duties or from its
reckless  disregard  of its  obligations  and duties  under the  Contract.  Each
sub-advisory   contract   contains  similar   provisions  with  respect  to  the
sub-adviser.  Section 10 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  Mitchell  Hutchins  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 9 of each  Distribution  Contract  provides that the Trust will
indemnify Mitchell Hutchins 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  Mitchell  Hutchins  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  Mitchell  Hutchins  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 Mitchell Hutchins for use in the Registration Statement
or arising out of an agreement  between Mitchell Hutchins and any retail dealer,
or arising  out of  supplementary  literature  or  advertising  used by Mitchell
Hutchins  in  connection  with the  Contract.  Section  10 of each  Distribution
Contract contains  provisions  similar to Section 10 of the Investment  Advisory
and Administration  Contract, with respect to Mitchell Hutchins and PaineWebber,
as appropriate.

         Section  9 of  each  Exclusive  Dealer  Agreement  contains  provisions
similar to Section 9 of each Distribution Contract,  with respect to PaineWebber


                                      C-2
<PAGE>

Incorporated ("PaineWebber").

         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  Registrant,  pursuant to the foregoing  provisions or otherwise,
the  Registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Act and is,  therefore,  unenforceable.  In the  event  that a claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant  of expenses  incurred or paid by a trustee,  officer or  controlling
person of the  Registrant  in  connection  with the  successful  defense  of any
action,  suit or  proceeding  or payment  pursuant to any  insurance  policy) is
asserted against the Registrant by such trustee,  officer or controlling  person
in connection with the securities being registered,  the Registrant 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
         ----------------------------------------------------

         Mitchell Hutchins, a Delaware  corporation,  is a registered investment
adviser  and  is  a  wholly  owned   subsidiary  of   PaineWebber   Incorporated
("PaineWebber")  which is, in turn,  a wholly owned  subsidiary  of Paine Webber
Group Inc. ("Paine Webber Group"),  a publicly owned financial  services holding
company.  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.

         DSI International Management,  Inc. ("DSI"), a Delaware corporation, is
a registered  investment  adviser and is an indirect wholly owned  subsidiary of
PaineWebber, which is, in turn, a wholly owned subsidiary of Paine Webber Group.
DSI is primarily engaged in the investment advisory business.  Information as to
the officers and directors of DSI is included in its Form ADV, as filed with the
Securities  and Exchange  Commission  (registration  number  801-30558),  and is
incorporated herein by reference.

Item 27. Principal Underwriters
         ----------------------

         a) Mitchell Hutchins serves as principal  underwriter and/or investment
adviser for the following investment companies:


         ALL-AMERICAN TERM TRUST INC.
         GLOBAL HIGH INCOME DOLLAR FUND INC.
         INSURED MUNICIPAL INCOME FUND INC.
         INVESTMENT GRADE MUNICIPAL INCOME FUND INC.
         MANAGED HIGH YIELD FUND INC.
         MANAGED HIGH YIELD PLUS FUND INC.
         MITCHELL HUTCHINS LIR MONEY  SERIES
         MITCHELL HUTCHINS PORTFOLIOS
         MITCHELL HUTCHINS SECURITIES TRUST
         MITCHELL HUTCHINS SERIES TRUST
         PAINEWEBBER AMERICA FUND
         PAINEWEBBER FINANCIAL SERVICES GROWTH FUND INC.
         PAINEWEBBER INDEX TRUST
         PAINEWEBBER INVESTMENT SERIES
         PAINEWEBBER INVESTMENT TRUST
         PAINEWEBBER INVESTMENT TRUST II
         PAINEWEBBER MANAGED ASSETS TRUST
         PAINEWEBBER MANAGED INVESTMENTS TRUST
         PAINEWEBBER MASTER SERIES, INC.
         PAINEWEBBER MUNICIPAL SERIES



                                      C-3
<PAGE>

         PAINEWEBBER MUTUAL FUND TRUST
         PAINEWEBBER OLYMPUS FUND
         PAINEWEBBER SECURITIES TRUST
         STRATEGIC GLOBAL INCOME FUND, INC.
         2002 TARGET TERM TRUST INC.

         b)  Mitchell  Hutchins  is  the  Registrant's   principal  underwriter.
PaineWebber acts as exclusive dealer of the Registrant's  shares.  The directors
and officers of Mitchell Hutchins, their principal business addresses, and their
positions and offices with Mitchell  Hutchins are identified in its Form ADV, as
filed  with  the  Securities  and  Exchange  Commission   (registration   number
801-13219). The directors and officers of PaineWebber,  their principal business
addresses,  and their  positions and offices with  PaineWebber are identified in
its Form ADV, as filed with the Securities and Exchange Commission (registration
number 801-7163).  The foregoing  information is hereby  incorporated  herein by
reference.  The information set forth below is furnished for those directors and
officers  of  Mitchell  Hutchins  or  PaineWebber  who also serve as trustees or
officers of the Registrant.

<TABLE>
<CAPTION>

                              Positions and Offices With       Positions and Offices With
        Name                          Registrant            Underwriter or Exclusive Dealer
        ----                          ----------           --------------------------------
<S>                          <C>                            <C>

Margo N. Alexander*              President and Trustee      Chairman, Chief Executive
                                                            Officer and a Director of
                                                            Mitchell Hutchins and Executive
                                                            Vice President and Director of
                                                            PaineWebber

Mary C. Farrell**                       Trustee             Managing Director, Senior
                                                            Investment Strategist and Member
                                                            of Investment Policy Committee
                                                            of PaineWebber

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

Tom Disbrow**                Vice President and Assistant   First Vice President and a
                                      Treasurer             Senior Manager of the Mutual
                                                            Fund Finance Department of
                                                            Mitchell Hutchins

John J. Lee**                Vice President and Assistant   Vice President and a Manager of
                                      Treasurer             the Mutual Fund Finance
                                                            Department of Mitchell Hutchins

Kevin J. Mahoney**           Vice President and Assistant   First Vice President and a
                                      Treasurer             Senior Manager of the Mutual
                                                            Fund Finance Department of
                                                            Mitchell Hutchins

Ann E. Moran**               Vice President and Assistant   Vice President and a Manager of
                                      Treasurer             the Mutual Fund Finance
                                                            Department of Mitchell Hutchins

Dianne E. O'Donnell**        Vice President and Secretary   Senior Vice President and Deputy
                                                            General Counsel of Mitchell Hutchins

Emil Polito*                        Vice President          Senior Vice President and
                                                            Director of Operations and
                                                            Control for Mitchell Hutchins

Victoria E. Schonfeld**             Vice President          Managing Director and General
                                                            Counsel of Mitchell Hutchins and
                                                            Senior Vice President of PaineWebber

Paul H. Schubert**           Vice President and Treasurer   Senior Vice President and Director
                                                            of the Mutual Fund Finance Department
                                                            of Mitchell Hutchins

Barney A. Taglialatela**     Vice President and Assistant   Vice President and a Manager of
                                      Treasurer             the Mutual Fund Finance Department
                                                            of Mitchell Hutchins


                                                C-4
<PAGE>

                              Positions and Offices With       Positions and Offices With
        Name                          Registrant            Underwriter or Exclusive Dealer
        ----                          ----------           --------------------------------
<S>                          <C>                            <C>


Keith A. Weller**            Vice President and Assistant  First Vice President and Associate
                                      Secretary            General Counsel of Mitchell Hutchins

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

* The business address of this person is 51 West 52nd Street, New York, New York 10019-6114.
** The business address of this person is 1285 Avenue of the Americas, New York, New York 10019.

</TABLE>



         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  investment adviser,  Mitchell Hutchins,  at
1285 Avenue of the  Americas,  New York,  New York 10019 or 51 West 52nd Street,
New York, New York 10019-6114.  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-5
<PAGE>


                                   SIGNATURES

      Pursuant  to the  requirements  of the  Securities  Act of  1933  and  the
Investment Company Act of 1940, the Registrant has duly cause this Pre-Effective
Amendment No. 3 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 6th day of March 2000.

                              MITCHELL HUTCHINS SECURITIES TRUST


                              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
Pre-Effective  Amendment has been signed below by the  following  persons in the
capacities  and  on  the  dates  indicated.  The  undersigned  hereby  severally
constitute and appoint Dianne E.  O'Donnell,  Keith A. Weller,  Arthur J. Brown,
Elinor W.  Gammon and  Robert A Wittie,  and each of them  singly,  our true and
lawful  attorneys,  with full  power to sign for each of us,  and in each of our
names and in the  capacities  indicated  below,  any and all  amendments  to the
Registration   Statement  of  Mitchell   Hutchins   Securities  Trust,  and  all
instruments  necessary  or  desirable in  connection  therewith,  filed with the
Securities  and  Exchange  Commission,   hereby  ratifying  and  confirming  our
signatures as they may be signed by said  attorneys to any and all amendments to
said registration statement.

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

/s/ Margo N. Alexander              President and Trustee        March 6, 2000
- ------------------------------      (Chief Executive Officer)
Margo N. Alexander *

/s/ E. Garrett Bewkes, Jr.          Trustee and Chairman         March 6, 2000
- ------------------------------      of the Board of Trustees
E. Garrett Bewkes, Jr. *

/s/ Richard Q. Armstrong            Trustee                      March 6, 2000
- ------------------------------
Richard Q. Armstrong *

/s/ Richard R. Burt                 Trustee                      March 6, 2000
- ------------------------------
Richard R. Burt *

/s/ Mary C. Farrell                 Trustee                      March 6, 2000
- ------------------------------
Mary C. Farrell *

/s/ Meyer Feldberg                  Trustee                      March 6, 2000
- ------------------------------
Meyer Feldberg *

/s/ George W. Gowen                 Trustee                      March 6, 2000
- ------------------------------
George W. Gowen *

/s/ Frederic V. Malek               Trustee                      March 6, 2000
- ------------------------------
Frederic V. Malek *

/s/ Carl W. Schafer                 Trustee                      March 6, 2000
- ------------------------------
Carl W. Schafer *

/s/ Brian M. Storms                 Trustee                      March 6, 2000
- ------------------------------
Brian M. Storms **

/s/ Paul H. Schubert                Vice President and           March 6, 2000
- ------------------------------      Treasurer (Chief Financial
Paul H. Schubert                    and Accounting Officer)


<PAGE>


                       MITCHELL HUTCHINS SECURITIES TRUST

                                  EXHIBIT INDEX

Exhibit
Number
- ------


(1)  (a)  Trust Instrument 1/

     (b)  Amendment  to Trust  Instrument  effective  February  8, 2000  (filed
          herewith)

(2)  By-Laws  1/

(3)  Instruments defining the rights of holders of Registrant's shares of
     beneficial interest 2/


(4)  (a)  Investment Advisory and Administration Contract (filed herewith)

     (b)  Sub-Advisory Contract relating to PaineWebber Enhanced S&P 500 Fund
          (filed herewith)

     (c)  Sub-Advisory Contract relating to PaineWebber Enhanced Nasdaq-100 Fund
          (filed herewith)

(5)  (a)  Distribution Contract (Class A Shares ) (filed herewith)

     (b)  Distribution Contract (Class B Shares ) (filed herewith)

     (c)  Distribution Contract (Class C Shares ) (filed herewith)

     (d)  Distribution Contract (Class Y Shares) (filed herewith)

     (e)  Exclusive Dealer Agreement (Class A Shares) (filed herewith)

     (f)  Exclusive Dealer Agreement (Class B Shares) (filed herewith)

     (g)  Exclusive Dealer Agreement (Class C Shares) (filed herewith)

     (h)  Exclusive Dealer Agreement (Class Y Shares) (filed herewith)


(6)  Bonus,  profit  sharing  or  pension  plans - none


(7)  Form of  Custodian Agreement  (filed  herewith)

(8)  Form  of  Transfer  Agency  Agreement  (filed herewith)

(9)  Opinion and consent of counsel (filed herewith)

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


(11) Financial  Statements  omitted from Part B - none


(12) Letter of investment intent (filed herewith)

(13) (a)  Rule 12b-1 Plan of Distribution with respect to Class A Shares
          (filed herewith)

     (b)  Rule 12b-1 Plan of Distribution with respect to Class B Shares
          (filed herewith)

     (c)  Rule 12b-1 Plan of Distribution with respect to Class C Shares
          (filed herewith)


(14) and

(27) Financial Data Schedule (not applicable)


(15) Plan Pursuant to Rule 18f-3 (filed herewith)

(16) (a)  Code of Ethics for Mitchell Hutchins Securities Trust and Mitchell
          Hutchins Asset Management Inc. (to be filed)

     (b)  Code of Ethics for DSI International Management, Inc. (to be filed)

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



<PAGE>

1/   Incorporated by Registrant's  initial  registration statement, SEC File No.
     333-94065, filed December 23, 1999.

2/   Incorporated by reference from  Articles  IV, VI, IX and X of  Registrant's
     Trust Instrument and from Articles VI and IX of Registrant's By-Laws.





                                                                  Exhibit (1)(b)

                                     ACTION

                       IN LIEU OF MEETING OF THE TRUSTEES

                                       OF

                       MITCHELL HUTCHINS SECURITIES TRUST

      The undersigned, being all the trustees of Mitchell Hutchins Securities
Trust ("Trust"), do hereby approve, adopt and consent to the following
resolutions as the act of the Board of Trustees of said Trust, which shall for
all purposes be treated as a vote at a meeting:

            RESOLVED, that pursuant to Section 8 of Article X of the Trust's
      Trust Instrument, the name of the Trust's initial series of shares of
      beneficial interest be, and it hereby is, changed from "PaineWebber DSI
      Core Equity Fund" to "PaineWebber Enhanced Equity Index Fund," and be it
      further

            RESOLVED, that pursuant to Section 1 of Article IV of the Trust's
      Trust Instrument, there is hereby established and designated a new series
      of shares of beneficial interest in the Trust, having the rights and
      privileges specified in the Trust's Trust Instrument, to be known as
      "PaineWebber Enhanced Nasdaq-100 Fund" ("New Fund"), and be it further

            RESOLVED, that the trustees hereby establish an unlimited number of
      Class A shares of beneficial interest of the New Fund; and be it further

            RESOLVED, that the trustees hereby establish an unlimited number of
      Class B shares of beneficial interest of the New Fund; and be it further

            RESOLVED, that the trustees hereby establish an unlimited number of
      Class C shares of beneficial interest of the New Fund; and be it further

            RESOLVED, that the trustees hereby establish an unlimited number of
      Class Y shares of beneficial interest of the New Fund; and be it further

            RESOLVED, that the Class A, B, C and Y shares of the New Fund shall
      have the same preferences and other rights, voting powers, restrictions,
      limitations as to dividends, qualifications and terms and conditions of
      redemption of shares as provided in Schedule A to the Trust's Trust
      Instrument and subject to the exceptions set forth in Schedule A; and be
      it further

            RESOLVED, that Schedule A of the Trust's Declaration of Trust be,
      and hereby is, amended and restated to reflect the name change of the
      Series and the establishment of the new series; and be it further



<PAGE>

            RESOLVED, that the Trust's officers be, and hereby are, authorized
      and directed in the name and on behalf of the Trust, to prepare, execute
      and file with the Securities and Exchange Commission ("SEC") and other
      appropriate authorities Pre-Effective Amendment No. 1 ("Amendment") to the
      Trust's initial registration statement on Form N-1A, such Amendment to
      include a combined prospectus and statement of additional information for
      the Trust's two series, and to make such changes therein as may be
      required to comply with the comments of the SEC staff or as are deemed
      appropriate by said officers and as are approved by the Trust's counsel;
      and to file one or more additional pre-effective amendments to such
      initial registration statement as said officers may determine are
      necessary and appropriate; and be it further

            RESOLVED, that the officers of the Trust be, and hereby are,
      authorized to determine the states in which appropriate action shall be
      taken to permit sales of the shares of the Trust and to perform on behalf
      of the Trust any and all such acts as they may deem necessary or advisable
      in order to comply with the applicable laws or regulations of any such
      states, and in connection therewith to execute and file all requisite
      papers and documents, including appointments of attorneys for service of
      process; and the execution by such officers of any such paper or document
      or the doing of them of any act in connection with the foregoing matters
      shall conclusively establish their authority therefor from the Trust and
      the approval and ratification by the Trust of the papers and documents so
      executed and the action so taken.

      Adoption of the foregoing Resolutions as the act of the Board of Trustees
shall be effective as of February 8, 2000.

 Dated:  February 8, 2000                /s/ Victoria E. Schonfeld
         ----------------------          ------------------------
                                             Victoria E. Schonfeld

 Dated:  February 8, 2000                /s/ Dianne E. O'Donnell
         ----------------------          ----------------------
                                             Dianne E. O'Donnell








<PAGE>



                                   SCHEDULE A

SERIES OF THE TRUST

PaineWebber Enhanced Equity Index Fund
PaineWebber Enhanced Nasdaq-100 Fund

CLASSES OF SHARES OF SERIES

An unlimited number of shares of beneficial interest have been established by
the Board as Class A shares, Class B shares, Class C shares and Class Y shares
of each of the above Series. Each of the Class A shares, Class B shares, Class C
shares and Class Y shares of a Series represents interests in the assets of only
that Series and has the same preferences, conversion and other rights, voting
powers, restrictions, limitations as to dividends, qualifications and terms and
conditions of redemption of shares, except as provided in the Trust's Trust
Instrument and as set forth below with respect to the Class B shares of the
Series:

      1.    Each Class B share, other than a share purchased through the
            reinvestment of a dividend or a distribution with respect to the
            Class B share, shall be converted automatically, and without any
            action or choice on the part of the holder thereof, into Class A
            shares of the same Series, based on the relative net asset value of
            each such class at the time of the calculation of the net asset
            value of such class of shares on the date that is the first Business
            Day (as defined in the Series' prospectus and/or statement of
            additional information) of the month in which the sixth anniversary
            of the issuance of such Class B shares occurs (which, for the
            purpose of calculating the holding period required for conversion,
            shall mean (i) the date on which the issuance of such Class B shares
            occurred or (ii) for Class B shares obtained through an exchange,
            the date on which the issuance of the Class B shares of an eligible
            PaineWebber fund occurred, if such shares were exchanged directly,
            or through a series of exchanges for the Series' Class B shares (the
            "Conversion Date")).

      2.    Each Class B share purchased through the reinvestment of a dividend
            or a distribution with respect to the Class B shares and the
            dividends and distributions on such shares shall be segregated in a
            separate sub-account on the stock records of the Series for each of
            the holders of record thereof. On any Conversion Date, a number of
            the shares held in the sub-account of the holder of record of the
            share or shares being converted, calculated in accordance with the
            next following sentence, shall be converted automatically, and
            without any action or choice on the part of the holder thereof, into
            Class A shares of the same Series. The number of shares in the
            holder's sub-account so converted shall bear the same relation to
            the total number of shares maintained in the sub-account on the
            Conversion Date as the number of shares of the holder converted on
            the Conversion Date pursuant to Paragraph 2(a) hereof bears to the
            total number of Class B shares of the holder on the Conversion Date
            not purchased through the automatic reinvestment of dividends or
            distributions with respect to the Class B shares.



<PAGE>

      3.    The number of Class A shares into which a Class B share is converted
            pursuant to paragraphs 1 and 2 hereof shall equal the number
            (including for this purpose fractions of a share) obtained by
            dividing the net asset value per share of the Class B shares for
            purposes of sales and redemptions thereof at the time of the
            calculation of the net asset value on the Conversion Date by the net
            asset value per share of the Class A shares for purposes of sales
            and redemptions thereof at the time of the calculation of the net
            asset value on the Conversion Date.

      4.    On the Conversion Date, the Class B shares converted into Class A
            shares will cease to accrue dividends and will no longer be
            outstanding and the rights of the holders thereof will cease (except
            the right to receive declared but unpaid dividends to the Conversion
            Date).

For purposes of Paragraph 1 above, the term "eligible PaineWebber fund" includes
any and all mutual funds for which PaineWebber Incorporated or Mitchell Hutchins
Asset Management Inc. serves as investment adviser that offer shares with a
contingent deferred sales charge imposed upon certain redemptions of such shares
and that are exchangeable with the Class B shares of the Series.
















                                       2




                                                                  Exhibit (4)(a)



                 INVESTMENT ADVISORY AND ADMINISTRATION CONTRACT





         Contract  made  as of  ____________  2000,  between  MITCHELL  HUTCHINS
SECURITIES  TRUST, a Delaware  business trust ("Trust"),  and MITCHELL  HUTCHINS
ASSET MANAGEMENT INC. ("Mitchell  Hutchins"),  a Delaware corporation registered
as a broker-dealer  under the Securities Exchange Act of 1934, as amended ("1934
Act"), and as an investment  adviser under the Investment  Advisers Act of 1940,
as amended,

         WHEREAS the Trust is  registered  under the  Investment  Company Act of
1940, as amended ("1940 Act"), as an open-end management investment company, and
currently  has two  distinct  series  of shares of  beneficial  interest,  which
correspond to distinct  portfolios,  which have been  designated as  PaineWebber
Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund; and

         WHEREAS the Trust  desires to retain  Mitchell  Hutchins as  investment
adviser and administrator to furnish certain administrative, investment advisory
and  portfolio  management  services  to the Trust with  respect to  PaineWebber
Enhanced  S&P 500 Fund and  PaineWebber  Enhanced  Nasdaq-100  Fund and any
other Series as to which this Contract may hereafter be made applicable  (each a
"Series"), and Mitchell Hutchins is willing to furnish such services;

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

         1.  APPOINTMENT.   The  Trust  hereby  appoints  Mitchell  Hutchins  as
investment adviser and administrator of the Trust and each Series for the period
and on the terms set forth in this  Contract.  Mitchell  Hutchins  accepts  such
appointment  and  agrees  to render  the  services  herein  set  forth,  for the
compensation herein provided.

         2. DUTIES AS INVESTMENT ADVISER.

         (a)  Subject  to the  supervision  of the  Trust's  Board  of  Trustees
("Board"),  Mitchell Hutchins will provide a continuous investment program for a
Series,  including  investment  research  and  management  with  respect  to all
securities and investments and cash equivalents in the Series. Mitchell Hutchins
will determine from time to time what securities and other  investments  will be
purchased,  retained or sold by the Series.  Mitchell Hutchins may delegate to a
sub-adviser,  in  whole  or in  part,  Mitchell  Hutchins'  duty  to  provide  a
continuous investment  management program with respect to any Series,  including
the provision of investment management services with respect to a portion of the
Series' assets, in accordance with paragraph 5 of this Agreement.


<PAGE>

         (b) Mitchell  Hutchins  agrees that in placing orders with brokers,  it
will  attempt  to obtain  the best net  result in terms of price and  execution;
provided  that,  on  behalf  of  any  Series,  Mitchell  Hutchins  may,  in  its
discretion,  use brokers who provide the Series with research,  analysis, advice
and similar services to execute portfolio  transactions on behalf of the Series,
and  Mitchell  Hutchins  may pay to those  brokers in return for  brokerage  and
research  services a higher  commission  than may be  charged by other  brokers,
subject to Mitchell Hutchins'  determining in good faith that such commission is
reasonable  in terms  either of the  particular  transaction  or of the  overall
responsibility  of Mitchell  Hutchins  to such Series and its other  clients and
that the total commissions paid by such Series will be reasonable in relation to
the  benefits to the Series over the long term.  In no instance  will  portfolio
securities be purchased  from or sold to Mitchell  Hutchins,  or any  affiliated
person thereof,  except in accordance  with the federal  securities laws and the
rules and regulations  thereunder,  or any applicable exemptive orders. Whenever
Mitchell  Hutchins  simultaneously  places  orders to  purchase or sell the same
security  on  behalf  of a Series  and one or more  other  accounts  advised  by
Mitchell  Hutchins,  such orders will be  allocated as to price and amount among
all such  accounts in a manner  believed to be  equitable to each  account.  The
Trust  recognizes  that in some cases this  procedure may  adversely  affect the
results obtained for the Series.

         (c) Mitchell  Hutchins  will oversee the  maintenance  of all books and
records with respect to the  securities  transactions  of each Series,  and will
furnish the Board with such periodic and special reports as the Board reasonably
may request.  In compliance  with the  requirements of Rule 31a-3 under the 1940
Act, Mitchell Hutchins hereby agrees that all records which it maintains for the
Trust  are the  property  of the  Trust,  agrees  to  preserve  for the  periods
prescribed  by Rule 31a-2 under the 1940 Act any records  which it maintains for
the Trust and which are required to be  maintained  by Rule 31a-l under the 1940
Act and further  agrees to surrender  promptly to the Trust any records which it
maintains for the Trust upon request by the Trust.

         (d) Mitchell  Hutchins  will oversee the  computation  of the net asset
value and the net income of each Series as described in the currently  effective
registration  statement  of the  Trust  under  the  Securities  Act of 1933,  as
amended, and the 1940 Act and any supplements thereto ("Registration  Statement)
or as more frequently requested by the Board.

         (e) The Trust  hereby  authorizes  Mitchell  Hutchins and any entity or
person  associated  with  Mitchell  Hutchins  which  is a member  of a  national
securities  exchange to effect any  transaction on such exchange for the account
of any Series,  which  transaction is permitted by Section 11(a) of the 1934 Act
and the rules  thereunder,  and the Trust  hereby  consents to the  retention of
compensation  by  Mitchell  Hutchins  or any  person or entity  associated  with
Mitchell Hutchins for such transaction.

         3. Duties as  Administrator.  Mitchell  Hutchins  will  administer  the
affairs of the Trust and each Series subject to the supervision of the Board and
the following understandings:

         (a) Mitchell  Hutchins will  supervise all aspects of the operations of
the Trust and each Series, including oversight of transfer agency, custodial and
accounting services,  except as hereinafter set forth;  provided,  however, that
nothing herein  contained shall be deemed to relieve or deprive the Board of its

                                       2
<PAGE>

responsibility  for and  control of the  conduct of the affairs of the Trust and
each Series.

         (b) Mitchell  Hutchins will provide the Trust and each Series with such
corporate,  administrative  and clerical  personnel  (including  officers of the
Trust) and  services as are  reasonably  deemed  necessary  or  advisable by the
Board,  including the  maintenance of certain books and records of the Trust and
each Series.

         (c)  Mitchell  Hutchins  will  arrange,  but not pay,  for the periodic
preparation,  updating,  filing and dissemination (as applicable) of the Trust's
Registration Statement, proxy material, tax returns and required reports to each
Series'  shareholders  and the  Securities  and  Exchange  Commission  and other
appropriate federal or state regulatory authorities.

         (d) Mitchell  Hutchins  will provide the Trust and each Series with, or
obtain for it,  adequate  office space and all  necessary  office  equipment and
services, including telephone service, heat, utilities,  stationery supplies and
similar items.

         (e) Mitchell  Hutchins  will provide the Board on a regular  basis with
economic and  investment  analyses  and reports and make  available to the Board
upon  request  any  economic,   statistical  and  investment  services  normally
available to institutional or other customers of Mitchell Hutchins.

         4. FURTHER DUTIES.  In all matters  relating to the performance of this
Contract,  Mitchell  Hutchins will act in conformity with the Trust  Instrument,
By-Laws,  and Registration  Statement of the Trust and with the instructions and
directions of the Board and will comply with the  requirements  of the 1940 Act,
the  rules  thereunder,  and all other  applicable  federal  and state  laws and
regulations.

         5. DELEGATION OF MITCHELL  HUTCHINS'  DUTIES AS INVESTMENT  ADVISER AND
ADMINISTRATOR.  With respect to any or all Series,  Mitchell  Hutchins may enter
into one or more contracts ("Sub-Advisory or Sub-Administration  Contract") with
one or more  sub-advisers  or  sub-administrators  in  which  Mitchell  Hutchins
delegates to such  sub-advisers or  sub-administrators  any or all of its duties
specified  in  Paragraphs  2  and  3  of  this  Contract,   provided  that  each
Sub-Advisory  or  Sub-Administration  Contract  imposes  on the  sub-adviser  or
sub-administrator  bound thereby all the corresponding  duties and conditions to
which  Mitchell  Hutchins is subject by  Paragraphs 2 and 3 of this Contract and
all the duties and  conditions  of  paragraph  4 of this  Contract,  and further
provided  that  each  Sub-Advisory  or  Sub-Administration  Contract  meets  all
requirements of the 1940 Act and rules  thereunder.  Furthermore,  to the extent
consistent  with the  regulations  and  orders of the  Securities  and  Exchange
Commission,  the appointment and engagement of any sub-advisor and delegation to
it of  duties  hereunder  by  Mitchell  Hutchins  shall be  subject  only to the
approval of the Board of Trustees of the Trust.

         6. SERVICES NOT EXCLUSIVE.  The services furnished by Mitchell Hutchins
hereunder are not to be deemed exclusive and Mitchell  Hutchins shall be free to
furnish  similar  services to others so long as its services under this Contract
are not impaired thereby or unless otherwise agreed to by the parties  hereunder
in writing.  Nothing in this  Contract  shall limit or restrict the right of any

                                       3
<PAGE>

director,  officer or employee of Mitchell Hutchins,  who may also be a Trustee,
officer or employee of the Trust,  to engage in any other  business or to devote
his or her time and attention in part to the  management or other aspects of any
other business, whether of a similar nature or a dissimilar nature.

         7. EXPENSES.

         (a)  During  the  term of this  Contract,  each  Series  will  bear all
expenses,  not  specifically  assumed  by  Mitchell  Hutchins,  incurred  in its
operations and the offering of its shares.

         (b)  Expenses  borne by each series will  include but not be limited to
the following (or each Series'  proportionate  share of the following):  (i) the
cost (including  brokerage  commissions) of securities  purchased or sold by the
Series and any losses incurred in connection therewith; (ii) fees payable to and
expenses  incurred  on behalf of the  Series by  Mitchell  Hutchins  under  this
Contract;  (iii)  expenses of organizing  the Trust and the Series;  (iv) filing
fees and expenses relating to the registrations and qualification of the Series'
shares and the Trust under federal and/or state  securities laws and maintaining
such  registration  and  qualifications;  (v) fees and  salaries  payable to the
Trust's  Trustees and officers  who are not  interested  persons of the Trust or
Mitchell  Hutchins;  (vi) all expenses incurred in connection with the Trustees'
services,  including  travel  expenses;  (vii)  taxes  (including  any income or
franchise  taxes)  and  governmental   fees;  (viii)  costs  of  any  liability,
uncollectible  items of deposit and other insurance and fidelity bonds; (ix) any
costs,  expenses or losses arising out of a liability of or claim for damages or
other relief asserted  against the Trust or Series for violation of any law; (x)
legal, accounting and auditing expenses, including legal fees of special counsel
for those  Trustees  of the Trust who are not  interested  persons of the Trust;
(xi) charges of  custodians,  transfer  agents and other agents;  (xii) costs of
preparing  share  certificates;  (xiii) expenses of setting in type and printing
prospectuses and supplements thereto,  statements of additional  information and
supplements  thereto,  reports and proxy  materials  for existing  shareholders;
(xiv) costs of mailing  prospectuses  and  supplements  thereto,  statements  of
additional  information and supplements thereto,  reports and proxy materials to
existing  shareholders;  (xv) 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 the Trust or Series; (xvi) fees, voluntary assessments
and other expenses incurred in connection with membership in investment  company
organizations;  (xvii)  cost of  mailing  and  tabulating  proxies  and costs of
meetings of shareholders, the Board and any committees thereof; (xviii) the cost
of investment company literature and other publications provided by the Trust to
its Trustees and officers; (xix) costs of mailing, stationery and communications
equipment;  (xx)  expenses  incident to any  dividend,  withdrawal or redemption
options; (xxi) charges and expenses of any outside pricing service used to value
portfolio securities; and (xxii) interest on borrowings of the Trust.

         (c) The Trust or a Series may pay directly any expenses  incurred by it
in its normal  operations  and, if any such  payment is consented to by Mitchell
Hutchins and acknowledged as otherwise  payable by Mitchell Hutchins pursuant to

                                        4
<PAGE>

this  Contract,  the  Series may reduce  the fee  payable to  Mitchell  Hutchins
pursuant  to  Paragraph  8  thereof  by such  amount.  To the  extent  that such
deductions  exceed the fee payable to Mitchell  Hutchins on any monthly  payment
date,  such excess shall be carried forward and deducted in the same manner from
the fee payable on succeeding monthly payment dates.

         (d)  Mitchell  Hutchins  will assume the cost of any  compensation  for
services  provided  to the Trust  received  by the  officers of the Trust and by
those Trustees who are interested persons of the Trust.

         (e) The payment or assumption  by Mitchell  Hutchins of any expenses of
the Trust or a Series that Mitchell Hutchins is not required by this Contract to
pay or assume shall not obligate  Mitchell Hutchins to pay or assume the same or
any similar expense of the Trust or a Series on any subsequent occasion.

         8.  COMPENSATION.

         (a) For the services provided and the expenses assumed pursuant to this
Contract,  with respect to PaineWebber Enhanced S&P 500 Fund, the Trust will pay
to Mitchell Hutchins a fee,  computed daily and paid monthly,  at an annual rate
of 0.40% of average daily net assets of such Series.

         (b) For the services provided and the expenses assumed pursuant to this
Contract,  with respect to PaineWebber  Enhanced Nasdaq-100 Fund, the Trust will
pay to Mitchell  Hutchins a fee,  computed daily and paid monthly,  at an annual
rate of 0.75% of average daily net assets of such Series.

         (c) For the services provided and the expenses assumed pursuant to this
Contract with respect to any other Series hereafter established,  the Trust will
pay to Mitchell Hutchins from the assets of such Series a fee in an amount to be
agreed upon in a written fee agreement ("Fee  Agreement")  executed by the Trust
on behalf of such Series and by Mitchell Hutchins. All such Fee Agreements shall
provide that they are subject to all terms and conditions of this Contract.

         (d) The fee  shall be  computed  daily  and paid  monthly  to  Mitchell
Hutchins on or before the first  business  day of the next  succeeding  calendar
month.

         (e) If this Contract becomes  effective or terminates before the end of
any month, the fee for the period from the effective day to the end of the month
or from the beginning of such month to the date of termination,  as the case may
be, shall be prorated according to the proportion which such period bears to the
full month in which such effectiveness or termination occurs.

         9. LIMITATION OF LIABILITY OF MITCHELL HUTCHINS.  Mitchell Hutchins and
its delegates,  including any Sub-Adviser or  Sub-Administrator to any Series or
the Trust,  shall be liable for any error of  judgment  or mistake of law or for
any loss  suffered  by any  Series,  the  Trust or any of its  shareholders,  in
connection with the matters to which this Contract relates, except to the extent
that such a loss results from willful misfeasance, bad faith or gross negligence
on its part in the performance of its duties or from reckless disregard by it of

                                       5
<PAGE>

its obligations and duties under this Contract.  Any person, even though also an
officer, director, employee, or agent of Mitchell Hutchins, who may be or become
an  officer,  Trustee,  employee  or agent of the Trust  shall be  deemed,  when
rendering  services  to any  Series or the Trust or acting  with  respect to any
business of such Series or the Trust,  to be rendering such service to or acting
solely for the Series or the Trust and not as an officer, director, employee, or
agent or one under the control or  direction  of Mitchell  Hutchins  even though
paid by it.

         10.  LIMITATION  OF LIABILITY OF THE TRUSTEES AND  SHAREHOLDERS  OF THE
TRUST. No Trustee,  shareholder,  officer, employee or agent of any Series shall
be liable for any  obligations  of any Series or the Trust under this  Contract,
and Mitchell  Hutchins agrees that, in asserting any rights or claims under this
Contract,  it  shall  look  only to the  assets  and  property  of the  Trust in
settlement of such right or claim, and not to any Trustee, shareholder, officer,
employee or agent.

         11.  DURATION AND TERMINATION.

         (a) This  Contract  shall  become  effective  upon  the date  hereabove
written provided that, with respect to any Series,  this Contract shall not take
effect  unless it has first been  approved  (i) by a vote of a majority of those
Trustees of the Trust who are not parties to this Contract or interested persons
of any such party cast in person at a meeting  called for the  purpose of voting
on such  approval,  and (ii) by vote of a majority of that  Series'  outstanding
voting securities.

         (b) Unless sooner  terminated as provided  herein,  this Contract shall
continue in effect for two years from the above written date. Thereafter, if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each,  provided that such continuance is specifically  approved at
least  annually  (i) by a vote of a majority of those  Trustees of the Trust who
are not parties to this Contract or interested  persons of any such party,  cast
in person at a meeting  called for the purpose of voting on such  approval,  and
(ii) by the Board or with  respect to any given  Series by vote of a majority of
the outstanding voting securities of such Series.

         (c)  Notwithstanding  the  foregoing,  with  respect to any Series this
Contract may be terminated at any time,  without the payment of any penalty,  by
vote  of the  board  or by a  vote  of a  majority  of  the  outstanding  voting
securities of such Series on sixty days' written notice to Mitchell  Hutchins or
by Mitchell Hutchins at any time,  without the payment of any penalty,  on sixty
days' written notice to the Trust.  Termination of this Contract with respect to
any given Series shall in no way affect the continued  validity of this Contract
or the performance  thereunder  with respect to any other Series.  This Contract
will automatically terminate in the event of its assignment.

         12.  AMENDMENT OF THIS  CONTRACT.  No provision of this Contract may be
changed,  waived,  discharged or terminated orally, but only by an instrument in
writing  signed by the party against which  enforcement  of the change,  waiver,
discharge or termination is sought,  and no amendment of this contract as to any
given  Series shall be  effective  until  approved by vote of a majority of such
Series' outstanding voting securities.


                                        6
<PAGE>

         13.  GOVERNING LAW. This Contract shall be construed in accordance with
the laws of the State of Delaware,  without  giving  effect to the  conflicts of
laws principles thereof, and in accordance with the 1940 Act. To the extent that
the  applicable  laws of the  State of  Delaware  conflict  with the  applicable
provisions of the 1940 Act, the latter shall control.

         14.  MISCELLANEOUS.  The  captions in this  Contract  are  included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this  Contract  shall be held or made invalid by a court  decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby.  This Contract  shall be binding upon and shall inure to the benefit of
the parties hereto and their  respective  successors.  As used in this Contract,
the terms "majority of the outstanding voting securities,"  "affiliated person,"
"interested person,"  "assignment,"  "broker,"  "investment  adviser," "national
securities exchange," "net assets,"  "prospectus," "sale," "sell" and "security"
shall have the same meaning as such terms have in the 1940 Act,  subject to such
exemption as may be granted by the  Securities  and Exchange  Commission  by any
rule,  regulation or order.  Where the effect of a  requirement  of the 1940 Act
reflected in any provision of this contract is relaxed by a rule,  regulation or
order of the Securities and Exchange  Commission,  whether of special or general
application,  such provision  shall be deemed to incorporate  the effect of such
rule, regulation or order.

         IN WITNESS  WHEREOF,  the parties hereto have caused this instrument to
be  executed  by their  officers  designated  as of the day and year first above
written.


                                       MITCHELL HUTCHINS ASSET
                                         MANAGEMENT INC.




Attest:                                By
                                         ---------------------------------------






                                       MITCHELL HUTCHINS SECURITIES TRUST




Attest:                                By
                                            ------------------------------------




                                       7


                                                                  Exhibit (4)(b)

                              SUB-ADVISORY CONTRACT

         Agreement made as of ______________, 2000 ("Contract") between MITCHELL
HUTCHINS ASSET MANAGEMENT INC., a Delaware  corporation  ("Mitchell  Hutchins"),
and DSI INTERNATIONAL MANAGEMENT, INC., a Delaware corporation ("Sub-Adviser").


                                    RECITALS

         (1)  Mitchell  Hutchins  has entered  into an  Investment  Advisory and
Administration Agreement, dated ________________, 2000 ("Management Agreement"),
with  Mitchell  Hutchins  Securities  Trust  ("Trust"),  an open-end  management
investment  company  registered  under the  Investment  Company Act of 1940,  as
amended ("1940 Act");

         (2) The Trust offers for public sale two  distinct  series of shares of
beneficial  interest  which  correspond to distinct  portfolios  one of which is
known as  PaineWebber  Enhanced S&P 500 Fund  ("Fund") and may offer  additional
district series in the future;

         (3) Under the  Management  Agreement,  Mitchell  Hutchins has agreed to
provide certain investment advisory and administrative services to the Fund;

         (4) The  Management  Agreement  permits  Mitchell  Hutchins to delegate
certain of its duties as investment adviser thereunder to a sub-adviser;

         (5)  Mitchell  Hutchins  desires to retain the  Sub-Adviser  to furnish
certain  investment  advisory services with respect to the PaineWebber  Enhanced
S&P 500 Fund; and

         (6) The Sub-Adviser is willing to furnish such services;

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
herein contained, Mitchell Hutchins and the Sub-Adviser agree as follows:

         1. APPOINTMENT. Mitchell Hutchins hereby appoints the Sub-Adviser as an
investment  sub-adviser with respect to the Fund for the period and on the terms
set forth in this Contract.  The Sub-Adviser accepts that appointment and agrees
to render the services herein set forth, for the compensation herein provided.

         2. DUTIES AS SUB-ADVISER.

         (a) Subject to the  supervision  and  direction of the Trust's Board of
Trustees ("Board") and review by Mitchell  Hutchins,  and any written guidelines
adopted  by the Board or  Mitchell  Hutchins,  the  Sub-Adviser  will  provide a
continuous  investment program for the Fund,  including  investment research and
management with respect to all securities and  investments and cash  equivalents
in the Fund. The Sub-Adviser  will determine from time to time what  investments
will be  purchased,  retained  or  sold by the  Fund.  The  Sub-Adviser  will be

<PAGE>

responsible  for placing  purchase and sell orders for investments and for other
related transactions.  The Sub-Adviser will provide services under this Contract
in accordance with the Fund's investment objective, policies and restrictions as
stated in the Trust's currently effective  registration statement under the 1940
Act, and any amendments or supplements thereto ("Registration Statement").

         (b) The  Sub-Adviser  agrees that, in placing  orders with brokers,  it
will obtain the best net result in terms of price and execution;  provided that,
on behalf of the Fund, the Sub-Adviser  may, in its discretion,  use brokers who
provide the Sub-Adviser with research,  analysis, advice and similar services to
execute portfolio transactions,  and the Sub-Adviser may pay to those brokers in
return for  brokerage  and  research  services a higher  commission  than may be
charged by other brokers, subject to the Sub-Adviser's determining in good faith
that such commission is reasonable in terms either of the particular transaction
or of the overall  responsibility  of the  Sub-Adviser to the Fund and its other
clients and that the total  commissions  paid by the Fund will be  reasonable in
relation  to the  benefits to the Fund over the long term.  In no instance  will
portfolio  securities  be  purchased  from or sold  to the  Sub-Adviser,  or any
affiliated person thereof, except in accordance with the federal securities laws
and the rules and  regulations  thereunder.  The Sub-Adviser may aggregate sales
and purchase  orders with respect to the assets of the Fund with similar  orders
being made  simultaneously  for other accounts advised by the Sub-Adviser or its
affiliates. Whenever the Sub-Adviser simultaneously places orders to purchase or
sell the same  security  on  behalf of the Fund and one or more  other  accounts
advised by the Sub-Adviser,  the orders will be allocated as to price and amount
among all such accounts in a manner  believed to be equitable  over time to each
account.  Mitchell  Hutchins  recognizes  that in some cases this  procedure may
adversely affect the results obtained for the Fund.

         (c) The Sub-Adviser  will maintain all books and records required to be
maintained  pursuant to the 1940 Act and the rules and  regulations  promulgated
thereunder with respect to actions by the Sub-Adviser on behalf of the Fund, and
will  furnish the Board and  Mitchell  Hutchins  with such  periodic and special
reports as the Board or Mitchell Hutchins  reasonably may request. In compliance
with the  requirements of Rule 31a-3 under the 1940 Act, the Sub-Adviser  hereby
agrees that all records that it  maintains  for the Fund are the property of the
Trust,  agrees to preserve  for the periods  prescribed  by Rule 31a-2 under the
1940 Act any records that it maintains for the Trust and that are required to be
maintained  by Rule 31a-1 under the 1940 Act,  and further  agrees to  surrender
promptly to the Trust any records that it maintains for the Fund upon request by
the Trust.

         (d) At such  times as shall be  reasonably  requested  by the  Board or
Mitchell Hutchins,  the Sub-Adviser will provide the Board and Mitchell Hutchins
with economic and investment  analyses and reports as well as quarterly  reports
setting  forth  the  performance  of the  international  segment  of the  Fund's
investments and make available to the Board and Mitchell  Hutchins any economic,
statistical  and  investment  services  that  the  Sub-Adviser   normally  makes
available to its institutional or other customers.

         (e) In accordance with procedures adopted by the Board, as amended from
time to time, the Sub-Adviser is responsible for assisting in the fair valuation
of all portfolio  securities and will use its reasonable  efforts to arrange for
the provision of a price(s) from a party(ies) independent of the Sub-Adviser for

                                       2
<PAGE>

each  portfolio  security for which the custodian  does not obtain prices in the
ordinary course of business from an automated pricing service.

         3. FURTHER DUTIES.  In all matters  relating to the performance of this
Contract,  the  Sub-Adviser  will  act in  conformity  with  the  Trust's  Trust
Instrument, By-Laws and Registration Statement and with the written instructions
and written directions of the Board and Mitchell Hutchins;  and will comply with
the  requirements  of the 1940 Act and the  Investment  Advisers Act of 1940, as
amended ("Advisers Act") and the rules under each,  Subchapter M of the Internal
Revenue Code  ("Code"),  as applicable to regulated  investment  companies;  the
diversification  requirements applicable to the Fund under Section 817(h) of the
Code;  and all other  federal and state laws and  regulations  applicable to the
Trust and the Fund.  Mitchell  Hutchins  agrees to  provide  to the  Sub-Adviser
copies of the Trust's Trust Instrument, By-Laws, Registration Statement, written
instructions  and  directions  of the  Board  and  Mitchell  Hutchins,  and  any
amendments or supplements to any of these materials as soon as practicable after
such  materials  become  available;  and  further  agrees  to  identify  to  the
Sub-Adviser  in writing any  broker-dealers  that are  affiliated  with Mitchell
Hutchins (other than PaineWebber Incorporated and Mitchell Hutchins itself).

         4. EXPENSES.  During the term of this Contract,  the  Sub-Adviser  will
bear all expenses  incurred by it in  connection  with its  services  under this
Contract.

         5. COMPENSATION.

         (a)  For  the  services  provided  and  the  expenses  assumed  by  the
Sub-Adviser pursuant to this Contract, Mitchell Hutchins, not the Fund, will pay
to the Sub-Adviser a sub-advisory  fee,  computed daily and paid monthly,  at an
annual rate of 0.20% of the Fund's average daily net assets.

         (b)  The  fee  shall  be  accrued  daily  and  payable  monthly  to the
Sub-Adviser on or before the last business day of the next  succeeding  calendar
month.

         (c) If this Contract becomes  effective or terminates before the end of
any month,  the fee for the  period  from the  effective  date to the end of the
month or from the  beginning  of such month to the date of  termination,  as the
case may be, shall be pro-rated  according  to the  proportion  that such period
bears to the full month in which such effectiveness or termination occurs.

         6. LIMITATION OF LIABILITY. The Sub-Adviser shall not be liable for any
error of  judgment or mistake of law or for any loss  suffered by the Fund,  the
Trust, its  shareholders or by Mitchell  Hutchins in connection with the matters
to  which  this  Contract   relates,   except  a  loss  resulting  from  willful
misfeasance, bad faith or gross negligence on its part in the performance of its
duties or from reckless disregard by it of its obligations and duties under this
Contract.  Nothing in this  paragraph  shall be deemed a limitation or waiver of
any obligation or duty that may not by law be limited or waived.

         7. REPRESENTATIONS OF SUB-ADVISER. The Sub-Adviser represents, warrants
and agrees as follows:


                                       3
<PAGE>

         (a) The  Sub-Adviser  (i) is registered as an investment  adviser under
the  Advisers  Act and will  continue  to be so  registered  for so long as this
Contract  remains  in  effect;  (ii) is not  prohibited  by the  1940 Act or the
Advisers Act from performing the services  contemplated by this Contract;  (iii)
has met and will seek to continue to meet for so long as this  Contract  remains
in effect, any other applicable federal or state requirements, or the applicable
requirements of any regulatory or industry  self-regulatory  agency necessary to
be met in order to perform the services contemplated by this Contract;  (iv) has
the  authority  to enter into and  perform  the  services  contemplated  by this
Contract;  and (v) will promptly notify  Mitchell  Hutchins of the occurrence of
any event that would  disqualify the  Sub-Adviser  from serving as an investment
adviser of an  investment  company  pursuant to Section  9(a) of the 1940 Act or
otherwise.

         (b) The Sub-Adviser has adopted a written code of ethics complying with
the  requirements  of Rule 17j-1  under the 1940 Act and will  provide  Mitchell
Hutchins  and the  Board  with a copy of such  code  of  ethics,  together  with
evidence of its adoption. Within forty-five days of the end of the last calendar
quarter  of each  year that this  Contract  is in  effect,  the  president  or a
vice-president  of the Sub-Adviser  shall certify to Mitchell  Hutchins that the
Sub-Adviser has complied with the requirements of Rule 17j-1 during the previous
year and that there has been no  violation of the  Sub-Adviser's  code of ethics
or, if such a  violation  has  occurred,  that  appropriate  action was taken in
response to such violation.  Upon the written request of Mitchell Hutchins,  the
Sub-Adviser  shall  permit  Mitchell  Hutchins,  its  employees or its agents to
examine the reports  required to be made to the Sub-Adviser by Rule  17j-1(c)(1)
and all other records relevant to the Sub-Adviser's code of ethics.

         (c) The Sub-Adviser has provided  Mitchell  Hutchins with a copy of its
Form  ADV,  which  as of the  date of this  Agreement  is its  Form  ADV as most
recently filed with the Securities and Exchange  Commission ("SEC") and promptly
will furnish a copy of all amendments to Mitchell Hutchins at least annually.

         (d) The  Sub-Adviser  will  notify  Mitchell  Hutchins of any change of
control of the Sub-Adviser,  including any change of its general partners or 25%
shareholders, as applicable, and any changes in the key personnel who are either
the portfolio manager(s) of the Fund or senior management of the Sub-Adviser, in
each case prior to, or promptly after, such change.

         (e) The Sub-Adviser  agrees that neither it, nor any of its affiliates,
will in any way refer directly or indirectly to its relationship with the Trust,
the Fund,  Mitchell Hutchins or any of their respective  affiliates in offering,
marketing  or other  promotional  materials  without the prior  express  written
consent of Mitchell Hutchins.

         8. SERVICES NOT EXCLUSIVE.  The services  furnished by the  Sub-Adviser
hereunder are not to be deemed  exclusive and the  Sub-Adviser  shall be free to
furnish  similar  services to others so long as its services under this Contract
are not impaired thereby or unless otherwise agreed to by the parties  hereunder
in writing.  Nothing in this  Contract  shall limit or restrict the right of any
director,  officer or  employee of the  Sub-Adviser,  who may also be a trustee,
officer or employee of the Trust,  to engage in any other  business or to devote

                                       4
<PAGE>

his or her time and attention in part to the  management or other aspects of any
other business, whether of a similar nature or a dissimilar nature.

         9.  DURATION AND TERMINATION.

         (a) This  Contract  shall  become  effective  upon the date first above
written,  provided that this Contract  shall not take effect unless it has first
been  approved:  (i) by a vote of a majority of those  trustees of the Trust who
are not parties to this Contract or interested  persons of any such party,  cast
in person at a meeting  called for the purpose of voting on such  approval,  and
(ii) by vote of a majority of the Fund's outstanding securities.

         (b) Unless sooner  terminated as provided  herein,  this Contract shall
continue in effect for two years from its  effective  date.  Thereafter,  if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each,  provided that such continuance is specifically  approved at
least  annually:  (i) by a vote of a majority of those trustees of the Trust who
are not parties to this Contract or interested  persons of any such party,  cast
in person at a meeting  called for the purpose of voting on such  approval,  and
(ii) by the Board or by vote of a majority of the outstanding  voting securities
of the Fund.

         (c) Notwithstanding  the foregoing,  this Contract may be terminated at
any time, without the payment of any penalty,  by vote of the Board or by a vote
of a  majority  of the  outstanding  voting  securities  of the Fund on 60 days'
written notice to the Sub-Adviser. This Contract may also be terminated, without
the payment of any penalty,  by Mitchell  Hutchins:  (i) upon 120 days'  written
notice to the  Sub-Adviser;  (ii) upon material breach by the Sub-Adviser of any
representations  and warranties  set forth in Paragraph 7 of this  Contract,  if
such  breach has not been  cured  within a 20 day  period  after  notice of such
breach;  or  (iii)  immediately  if,  in the  reasonable  judgment  of  Mitchell
Hutchins, the Sub-Adviser becomes unable to discharge its duties and obligations
under this Contract, including circumstances such as financial insolvency of the
Sub-Adviser or other  circumstances  that could  adversely  affect the Fund. The
Sub-Adviser may terminate this Contract at any time,  without the payment of any
penalty,  on 120 days written  notice to Mitchell  Hutchins.  This Contract will
terminate  automatically  in the event of its assignment or upon  termination of
the Advisory Contract as it relates to the Fund.

         10.  AMENDMENT OF THIS  CONTRACT.  No provision of this Contract may be
changed,  waived,  discharged or terminated orally, but only by an instrument in
writing  signed by the party  against whom  enforcement  of the change,  waiver,
discharge or  termination  is sought.  No amendment  of this  Contract  shall be
effective  until approved by a vote of a majority of those trustees of the Trust
who are not parties to this Contract or interested persons of any such party.

         11.  GOVERNING LAW. This Contract shall be construed in accordance with
the 1940 Act and the laws of the State of Delaware, without giving effect to the
conflicts of laws principles  thereof. To the extent that the applicable laws of
the State of Delaware  conflict with the applicable  provisions of the 1940 Act,
the latter shall control.

         12.  MISCELLANEOUS.  The  captions in this  Contract  are  included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the

                                       5
<PAGE>

provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this  Contract  shall be held or made invalid by a court  decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby.  This Contract  shall be binding upon and shall inure to the benefit of
the parties hereto and their  respective  successors.  As used in this Contract,
the terms "majority of the outstanding voting securities,"  "affiliated person,"
"interested person," "assignment," "broker," "investment adviser," "net assets,"
"sale," "sell" and "security"  shall have the same meaning as such terms have in
the 1940 Act,  subject  to such  exemption  as may be  granted by the SEC by any
rule,  regulation  or order.  Where the effect of a  requirement  of the federal
securities  laws  reflected  in any  provision  of this  Contract  is made  less
restrictive  by a rule,  regulation  or order of the SEC,  whether of special or
general application, such provision shall be deemed to incorporate the effect of
such rule, regulation or order. This Contract may be signed in counterpart.

         13.  NOTICES.  Any notice  herein  required  is to be in writing and is
deemed to have been given to the  Sub-Adviser or Mitchell  Hutchins upon receipt
of the same at their  respective  addresses set forth below. All written notices
required or  permitted  to be given under this  Contract  will be  delivered  by
personal  service,  by postage mail - return  receipt  requested or by facsimile
machine or a similar  means of same day  delivery  which  provides  evidence  of
receipt  (with a  confirming  copy by mail as set  forth  herein).  All  notices
provided  to  Mitchell  Hutchins  will be sent to the  attention  of Victoria E.
Schonfeld, General Counsel. All notices provided to the Sub-Adviser will be sent
to the attention of [NAME] [TITLE].

                     [rest of page left intentionally blank]


                                       6
<PAGE>



         IN WITNESS  WHEREOF,  the parties hereto have caused this instrument to
be executed by their duly  authorized  signatories as of the date and year first
above written.


                                        MITCHELL HUTCHINS ASSET
                                          MANAGEMENT INC.
                                        51 West 52nd Street
                                        New York, New York  10019-6114
Attest:

By:                                     By:
   ------------------------------          ----------------------------------
    Name:                                  Name:
    Title:                                 Title:


                                        DSI INTERNATIONAL
                                          MANAGEMENT, INC.
                                        301 Merritt 7
                                        Norwalk, CT  06851


Attest:

By:                                     By:
   ------------------------------          ----------------------------------
    Name:                                  Name:
    Title:                                 Title:





                                       7



                                                                  Exhibit (4)(c)


                              SUB-ADVISORY CONTRACT

         Agreement made as of ______________, 2000 ("Contract") between MITCHELL
HUTCHINS ASSET MANAGEMENT INC., a Delaware  corporation  ("Mitchell  Hutchins"),
and DSI INTERNATIONAL MANAGEMENT, INC., a Delaware corporation ("Sub-Adviser").


                                    RECITALS

         (1)  Mitchell  Hutchins  has entered  into an  Investment  Advisory and
Administration Agreement, dated ________________, 2000 ("Management Agreement"),
with  Mitchell  Hutchins  Securities  Trust  ("Trust"),  an open-end  management
investment  company  registered  under the  Investment  Company Act of 1940,  as
amended ("1940 Act");

         (2) The Trust offers for public sale two  distinct  series of shares of
beneficial  interest  which  correspond to distinct  portfolios  one of which is
known as PaineWebber  Enhanced Nasdaq-100 Fund ("Fund") and may offer additional
district series in the future;

         (3) Under the  Management  Agreement,  Mitchell  Hutchins has agreed to
provide certain investment advisory and administrative services to the Fund;

         (4) The  Management  Agreement  permits  Mitchell  Hutchins to delegate
certain of its duties as investment adviser thereunder to a sub-adviser;

         (5)  Mitchell  Hutchins  desires to retain the  Sub-Adviser  to furnish
certain  investment  advisory services with respect to the PaineWebber  Enhanced
Nasdaq-100 Fund; and

         (6) The Sub-Adviser is willing to furnish such services;

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
herein contained, Mitchell Hutchins and the Sub-Adviser agree as follows:

         1. APPOINTMENT. Mitchell Hutchins hereby appoints the Sub-Adviser as an
investment  sub-adviser with respect to the Fund for the period and on the terms
set forth in this Contract.  The Sub-Adviser accepts that appointment and agrees
to render the services herein set forth, for the compensation herein provided.

         2. DUTIES AS SUB-ADVISER.

         (a) Subject to the  supervision  and  direction of the Trust's Board of
Trustees ("Board") and review by Mitchell  Hutchins,  and any written guidelines
adopted  by the Board or  Mitchell  Hutchins,  the  Sub-Adviser  will  provide a
continuous  investment program for the Fund,  including  investment research and
management with respect to all securities and  investments and cash  equivalents
in the Fund. The Sub-Adviser  will determine from time to time what  investments
will be  purchased,  retained  or  sold by the  Fund.  The  Sub-Adviser  will be
responsible  for placing  purchase and sell orders for investments and for other

<PAGE>

related transactions.  The Sub-Adviser will provide services under this Contract
in accordance with the Fund's investment objective, policies and restrictions as
stated in the Trust's currently effective  registration statement under the 1940
Act, and any amendments or supplements thereto ("Registration Statement").

         (b) The  Sub-Adviser  agrees that, in placing  orders with brokers,  it
will obtain the best net result in terms of price and execution;  provided that,
on behalf of the Fund, the Sub-Adviser  may, in its discretion,  use brokers who
provide the Sub-Adviser with research,  analysis, advice and similar services to
execute portfolio transactions,  and the Sub-Adviser may pay to those brokers in
return for  brokerage  and  research  services a higher  commission  than may be
charged by other brokers, subject to the Sub-Adviser's determining in good faith
that such commission is reasonable in terms either of the particular transaction
or of the overall  responsibility  of the  Sub-Adviser to the Fund and its other
clients and that the total  commissions  paid by the Fund will be  reasonable in
relation  to the  benefits to the Fund over the long term.  In no instance  will
portfolio  securities  be  purchased  from or sold  to the  Sub-Adviser,  or any
affiliated person thereof, except in accordance with the federal securities laws
and the rules and  regulations  thereunder.  The Sub-Adviser may aggregate sales
and purchase  orders with respect to the assets of the Fund with similar  orders
being made  simultaneously  for other accounts advised by the Sub-Adviser or its
affiliates. Whenever the Sub-Adviser simultaneously places orders to purchase or
sell the same  security  on  behalf of the Fund and one or more  other  accounts
advised by the Sub-Adviser,  the orders will be allocated as to price and amount
among all such accounts in a manner  believed to be equitable  over time to each
account.  Mitchell  Hutchins  recognizes  that in some cases this  procedure may
adversely affect the results obtained for the Fund.

         (c) The Sub-Adviser  will maintain all books and records required to be
maintained  pursuant to the 1940 Act and the rules and  regulations  promulgated
thereunder with respect to actions by the Sub-Adviser on behalf of the Fund, and
will  furnish the Board and  Mitchell  Hutchins  with such  periodic and special
reports as the Board or Mitchell Hutchins  reasonably may request. In compliance
with the  requirements of Rule 31a-3 under the 1940 Act, the Sub-Adviser  hereby
agrees that all records that it  maintains  for the Fund are the property of the
Trust,  agrees to preserve  for the periods  prescribed  by Rule 31a-2 under the
1940 Act any records that it maintains for the Trust and that are required to be
maintained  by Rule 31a-1 under the 1940 Act,  and further  agrees to  surrender
promptly to the Trust any records that it maintains for the Fund upon request by
the Trust.

         (d) At such  times as shall be  reasonably  requested  by the  Board or
Mitchell Hutchins,  the Sub-Adviser will provide the Board and Mitchell Hutchins
with economic and investment  analyses and reports as well as quarterly  reports
setting  forth  the  performance  of the  international  segment  of the  Fund's
investments and make available to the Board and Mitchell  Hutchins any economic,
statistical  and  investment  services  that  the  Sub-Adviser   normally  makes
available to its institutional or other customers.

         (e) In accordance with procedures adopted by the Board, as amended from
time to time, the Sub-Adviser is responsible for assisting in the fair valuation
of all portfolio  securities and will use its reasonable  efforts to arrange for

<PAGE>

the provision of a price(s) from a party(ies) independent of the Sub-Adviser for
each  portfolio  security for which the custodian  does not obtain prices in the
ordinary course of business from an automated pricing service.

         3. FURTHER DUTIES.  In all matters  relating to the performance of this
Contract,  the  Sub-Adviser  will  act in  conformity  with  the  Trust's  Trust
Instrument, By-Laws and Registration Statement and with the written instructions
and written directions of the Board and Mitchell Hutchins;  and will comply with
the  requirements  of the 1940 Act and the  Investment  Advisers Act of 1940, as
amended ("Advisers Act") and the rules under each,  Subchapter M of the Internal
Revenue Code  ("Code"),  as applicable to regulated  investment  companies;  the
diversification  requirements applicable to the Fund under Section 817(h) of the
Code;  and all other  federal and state laws and  regulations  applicable to the
Trust and the Fund.  Mitchell  Hutchins  agrees to  provide  to the  Sub-Adviser
copies of the Trust's Trust Instrument, By-Laws, Registration Statement, written
instructions  and  directions  of the  Board  and  Mitchell  Hutchins,  and  any
amendments or supplements to any of these materials as soon as practicable after
such  materials  become  available;  and  further  agrees  to  identify  to  the
Sub-Adviser  in writing any  broker-dealers  that are  affiliated  with Mitchell
Hutchins (other than PaineWebber Incorporated and Mitchell Hutchins itself).

         4. EXPENSES.  During the term of this Contract,  the  Sub-Adviser  will
bear all expenses  incurred by it in  connection  with its  services  under this
Contract.

         5. COMPENSATION.

         (a)  For  the  services  provided  and  the  expenses  assumed  by  the
Sub-Adviser pursuant to this Contract, Mitchell Hutchins, not the Fund, will pay
to the Sub-Adviser a sub-advisory  fee,  computed daily and paid monthly,  at an
annual rate of 0.35% of the Fund's average daily net assets.

         (b)  The  fee  shall  be  accrued  daily  and  payable  monthly  to the
Sub-Adviser on or before the last business day of the next  succeeding  calendar
month.

         (c) If this Contract becomes  effective or terminates before the end of
any month,  the fee for the  period  from the  effective  date to the end of the
month or from the  beginning  of such month to the date of  termination,  as the
case may be, shall be pro-rated  according  to the  proportion  that such period
bears to the full month in which such effectiveness or termination occurs.

         6. LIMITATION OF LIABILITY. The Sub-Adviser shall not be liable for any
error of  judgment or mistake of law or for any loss  suffered by the Fund,  the
Trust, its  shareholders or by Mitchell  Hutchins in connection with the matters
to  which  this  Contract   relates,   except  a  loss  resulting  from  willful
misfeasance, bad faith or gross negligence on its part in the performance of its
duties or from reckless disregard by it of its obligations and duties under this
Contract.  Nothing in this  paragraph  shall be deemed a limitation or waiver of
any obligation or duty that may not by law be limited or waived.

         7. REPRESENTATIONS OF SUB-ADVISER. The Sub-Adviser represents, warrants
and agrees as follows:


<PAGE>

         (a) The  Sub-Adviser  (i) is registered as an investment  adviser under
the  Advisers  Act and will  continue  to be so  registered  for so long as this
Contract  remains  in  effect;  (ii) is not  prohibited  by the  1940 Act or the
Advisers Act from performing the services  contemplated by this Contract;  (iii)
has met and will seek to continue to meet for so long as this  Contract  remains
in effect, any other applicable federal or state requirements, or the applicable
requirements of any regulatory or industry  self-regulatory  agency necessary to
be met in order to perform the services contemplated by this Contract;  (iv) has
the  authority  to enter into and  perform  the  services  contemplated  by this
Contract;  and (v) will promptly notify  Mitchell  Hutchins of the occurrence of
any event that would  disqualify the  Sub-Adviser  from serving as an investment
adviser of an  investment  company  pursuant to Section  9(a) of the 1940 Act or
otherwise.

         (b) The Sub-Adviser has adopted a written code of ethics complying with
the  requirements  of Rule 17j-1  under the 1940 Act and will  provide  Mitchell
Hutchins  and the  Board  with a copy of such  code  of  ethics,  together  with
evidence of its adoption. Within forty-five days of the end of the last calendar
quarter  of each  year that this  Contract  is in  effect,  the  president  or a
vice-president  of the Sub-Adviser  shall certify to Mitchell  Hutchins that the
Sub-Adviser has complied with the requirements of Rule 17j-1 during the previous
year and that there has been no  violation of the  Sub-Adviser's  code of ethics
or, if such a  violation  has  occurred,  that  appropriate  action was taken in
response to such violation.  Upon the written request of Mitchell Hutchins,  the
Sub-Adviser  shall  permit  Mitchell  Hutchins,  its  employees or its agents to
examine the reports  required to be made to the Sub-Adviser by Rule  17j-1(c)(1)
and all other records relevant to the Sub-Adviser's code of ethics.

         (c) The Sub-Adviser has provided  Mitchell  Hutchins with a copy of its
Form  ADV,  which  as of the  date of this  Agreement  is its  Form  ADV as most
recently filed with the Securities and Exchange  Commission ("SEC") and promptly
will furnish a copy of all amendments to Mitchell Hutchins at least annually.

         (d) The  Sub-Adviser  will  notify  Mitchell  Hutchins of any change of
control of the Sub-Adviser,  including any change of its general partners or 25%
shareholders, as applicable, and any changes in the key personnel who are either
the portfolio manager(s) of the Fund or senior management of the Sub-Adviser, in
each case prior to, or promptly after, such change.

         (e) The Sub-Adviser  agrees that neither it, nor any of its affiliates,
will in any way refer directly or indirectly to its relationship with the Trust,
the Fund,  Mitchell Hutchins or any of their respective  affiliates in offering,
marketing  or other  promotional  materials  without the prior  express  written
consent of Mitchell Hutchins.

         8. SERVICES NOT EXCLUSIVE.  The services  furnished by the  Sub-Adviser
hereunder are not to be deemed  exclusive and the  Sub-Adviser  shall be free to
furnish  similar  services to others so long as its services under this Contract
are not impaired thereby or unless otherwise agreed to by the parties  hereunder
in writing.  Nothing in this  Contract  shall limit or restrict the right of any
director,  officer or  employee of the  Sub-Adviser,  who may also be a trustee,
officer or employee of the Trust,  to engage in any other  business or to devote


<PAGE>

his or her time and attention in part to the  management or other aspects of any
other business, whether of a similar nature or a dissimilar nature.

         9. DURATION AND TERMINATION.

         (a) This  Contract  shall  become  effective  upon the date first above
written,  provided that this Contract  shall not take effect unless it has first
been  approved:  (i) by a vote of a majority of those  trustees of the Trust who
are not parties to this Contract or interested  persons of any such party,  cast
in person at a meeting  called for the purpose of voting on such  approval,  and
(ii) by vote of a majority of the Fund's outstanding securities.

         (b) Unless sooner  terminated as provided  herein,  this Contract shall
continue in effect for two years from its  effective  date.  Thereafter,  if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each,  provided that such continuance is specifically  approved at
least  annually:  (i) by a vote of a majority of those trustees of the Trust who
are not parties to this Contract or interested  persons of any such party,  cast
in person at a meeting  called for the purpose of voting on such  approval,  and
(ii) by the Board or by vote of a majority of the outstanding  voting securities
of the Fund.

         (c) Notwithstanding  the foregoing,  this Contract may be terminated at
any time, without the payment of any penalty,  by vote of the Board or by a vote
of a  majority  of the  outstanding  voting  securities  of the Fund on 60 days'
written notice to the Sub-Adviser. This Contract may also be terminated, without
the payment of any penalty,  by Mitchell  Hutchins:  (i) upon 120 days'  written
notice to the  Sub-Adviser;  (ii) upon material breach by the Sub-Adviser of any
representations  and warranties  set forth in Paragraph 7 of this  Contract,  if
such  breach has not been  cured  within a 20 day  period  after  notice of such
breach;  or  (iii)  immediately  if,  in the  reasonable  judgment  of  Mitchell
Hutchins, the Sub-Adviser becomes unable to discharge its duties and obligations
under this Contract, including circumstances such as financial insolvency of the
Sub-Adviser or other  circumstances  that could  adversely  affect the Fund. The
Sub-Adviser may terminate this Contract at any time,  without the payment of any
penalty,  on 120 days written  notice to Mitchell  Hutchins.  This Contract will
terminate  automatically  in the event of its assignment or upon  termination of
the Advisory Contract as it relates to the Fund.

         10.  AMENDMENT OF THIS  CONTRACT.  No provision of this Contract may be
changed,  waived,  discharged or terminated orally, but only by an instrument in
writing  signed by the party  against whom  enforcement  of the change,  waiver,
discharge or  termination  is sought.  No amendment  of this  Contract  shall be
effective  until approved by a vote of a majority of those trustees of the Trust
who are not parties to this Contract or interested persons of any such party.

         11.  GOVERNING LAW. This Contract shall be construed in accordance with
the 1940 Act and the laws of the State of Delaware, without giving effect to the
conflicts of laws principles  thereof. To the extent that the applicable laws of
the State of Delaware  conflict with the applicable  provisions of the 1940 Act,
the latter shall control.

         12.  MISCELLANEOUS.  The  captions in this  Contract  are  included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the


<PAGE>

provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this  Contract  shall be held or made invalid by a court  decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby.  This Contract  shall be binding upon and shall inure to the benefit of
the parties hereto and their  respective  successors.  As used in this Contract,
the terms "majority of the outstanding voting securities,"  "affiliated person,"
"interested person," "assignment," "broker," "investment adviser," "net assets,"
"sale," "sell" and "security"  shall have the same meaning as such terms have in
the 1940 Act,  subject  to such  exemption  as may be  granted by the SEC by any
rule,  regulation  or order.  Where the effect of a  requirement  of the federal
securities  laws  reflected  in any  provision  of this  Contract  is made  less
restrictive  by a rule,  regulation  or order of the SEC,  whether of special or
general application, such provision shall be deemed to incorporate the effect of
such rule, regulation or order. This Contract may be signed in counterpart.

         13.  Notices.  Any notice  herein  required  is to be in writing and is
deemed to have been given to the  Sub-Adviser or Mitchell  Hutchins upon receipt
of the same at their  respective  addresses set forth below. All written notices
required or  permitted  to be given under this  Contract  will be  delivered  by
personal  service,  by postage mail - return  receipt  requested or by facsimile
machine or a similar  means of same day  delivery  which  provides  evidence  of
receipt  (with a  confirming  copy by mail as set  forth  herein).  All  notices
provided  to  Mitchell  Hutchins  will be sent to the  attention  of Victoria E.
Schonfeld, General Counsel. All notices provided to the Sub-Adviser will be sent
to the attention of [NAME] [TITLE].

                     [rest of page left intentionally blank]

<PAGE>



         IN WITNESS  WHEREOF,  the parties hereto have caused this instrument to
be executed by their duly  authorized  signatories as of the date and year first
above written.


                                              MITCHELL HUTCHINS ASSET
                                                MANAGEMENT INC.
                                              51 West 52nd Street
                                              New York, New York  10019-6114
Attest:

By:                                           By:
   --------------------------------              -------------------------------
       Name:                                          Name:
       Title:                                         Title:


                                              DSI INTERNATIONAL
                                                MANAGEMENT, INC.
                                              301 Merritt 7
                                              Norwalk, CT  06851


Attest:

By:                                           By:
   --------------------------------              -------------------------------
        Name:                                         Name:
        Title:                                        Title:





                                                                  Exhibit (5)(a)

                       MITCHELL HUTCHINS SECURITIES TRUST

                              DISTRIBUTION CONTRACT
                                 CLASS A SHARES

         CONTRACT  made  as  of  ________,   2000,   between  MITCHELL  HUTCHINS
SECURITIES  TRUST, a Delaware  business trust ("Trust"),  and MITCHELL  HUTCHINS
ASSET MANAGEMENT INC., a Delaware corporation ("Mitchell Hutchins").

         WHEREAS the Trust is  registered  under the  Investment  Company Act of
1940, as amended ("l940 Act"), as an open-end management  investment company and
currently has two distinct series of shares of beneficial  interest  ("Series"),
which correspond to distinct  portfolios and have been designated as PaineWebber
Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund; and

         WHEREAS the Trust's  board of trustees  ("Board")  has  established  an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class A shares ("Class A Shares"); and

         WHEREAS the Trust has adopted a Plan of  Distribution  pursuant to Rule
12b-1 under the 1940 Act for its Class A Shares  ("Plan")  and desires to retain
Mitchell  Hutchins as principal  distributor in connection with the offering and
sale of the  Class A Shares of the  above-referenced  Series  and of such  other
Series as may  hereafter  be  designated  by the  Board and have  Class A Shares
established; and

         WHEREAS Mitchell Hutchins is willing to act as principal distributor of
the Class A Shares of each such Series on the terms and  conditions  hereinafter
set forth;

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

         1.  APPOINTMENT.  The Trust hereby  appoints  Mitchell  Hutchins as its
exclusive  agent to be the principal  distributor to sell and to arrange for the
sale of the Class A Shares on the  terms  and for the  period  set forth in this
Contract.  Mitchell  Hutchins hereby accepts such  appointment and agrees to act
hereunder.  It is understood,  however,  that this appointment does not preclude
sales of the Class A Shares directly  through the Trust's  transfer agent in the
manner set forth in the Registration  Statement.  As used in this Contract,  the
term "Registration  Statement" shall mean the currently  effective  registration
statement of the Trust, and any supplements thereto, under the Securities Act of
1933, as amended ("1933 Act"), and the 1940 Act.


<PAGE>

         2. SERVICES AND DUTIES OF MITCHELL HUTCHINS.

            (a)  Mitchell  Hutchins  agrees  to sell  Class A  Shares  on a best
efforts  basis from time to time  during the term of this  Contract as agent for
the Trust and upon the terms described in the Registration Statement.

            (b) Upon  the  later of the  date of this  Contract  or the  initial
offering of the Class A Shares to the public by a Series, Mitchell Hutchins will
hold itself  available  to receive  purchase  orders,  satisfactory  to Mitchell
Hutchins,  for Class A Shares of that  Series  and will  accept  such  orders on
behalf  of the  Trust as of the time of  receipt  of such  orders  and  promptly
transmit  such orders as are accepted to the Trust's  transfer  agent.  Purchase
orders shall be deemed  effective at the time and in the manner set forth in the
Registration Statement.

            (c) Mitchell Hutchins in its discretion may enter into agreements to
sell Class A Shares to such registered and qualified  retail dealers,  including
but not limited to PaineWebber Incorporated  ("PaineWebber"),  as it may select.
In making  agreements  with such dealers,  Mitchell  Hutchins  shall act only as
principal and not as agent for the Trust.

            (d) The offering price of the Class A Shares of each Series shall be
the net asset value per Share as next determined by the Trust following  receipt
of an order at Mitchell  Hutchins'  principal office plus the applicable initial
sales charge, if any, computed as set forth in the Registration  Statement.  The
Trust  shall  promptly  furnish  Mitchell  Hutchins  with a  statement  of  each
computation of net asset value.

            (e)  Mitchell  Hutchins  shall not be  obligated to sell any certain
number of Class A Shares.

            (f) To  facilitate  redemption  of  Class A Shares  by  shareholders
directly or through dealers, Mitchell Hutchins is authorized but not required on
behalf of the Trust to repurchase Class A Shares presented to it by shareholders
and dealers at the price  determined in accordance  with,  and in the manner set
forth in, the Registration  Statement.  Such price shall reflect the subtraction
of the contingent deferred sales charge, if any, computed in accordance with and
in the manner set forth in the Registration Statement.

            (g) Mitchell  Hutchins shall provide ongoing  shareholder  services,
which include responding to shareholder  inquiries,  providing shareholders with
information  on their  investments  in the Class A Shares and any other services
now or hereafter deemed to be appropriate  subjects for the payments of "service
fees"  under  Rule 2830 of the  Conduct  Rules of the  National  Association  of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").

            (h)  Mitchell  Hutchins  shall  have  the  right  to use any list of
shareholders  of the Trust or any other  list of  investors  which it obtains in
connection  with its  provision  of  services  under  this  Contract;  provided,
however, that Mitchell Hutchins shall not sell or knowingly provide such list or
lists to any unaffiliated person.


                                      -2-
<PAGE>

         3.  AUTHORIZATION  TO ENTER INTO  EXCLUSIVE  DEALER  AGREEMENTS  AND TO
DELEGATE DUTIES AS DISTRIBUTOR. With respect to the Class A Shares of any or all
Series,  Mitchell  Hutchins may enter into an exclusive  dealer  agreement  with
PaineWebber or any other  registered and qualified  dealer with respect to sales
of the Class A Shares or the  provision  of  service  activities.  In a separate
contract or as part of any such exclusive dealer  agreement,  Mitchell  Hutchins
also may delegate to  PaineWebber  or another  registered  and qualified  dealer
("sub-distributor")  any or  all  of its  duties  specified  in  this  Contract,
provided that such separate  contract or exclusive dealer  agreement  imposes on
the sub-distributor  bound thereby all applicable duties and conditions to which
Mitchell Hutchins is subject under this Contract, and further provided that such
separate  contract or exclusive  dealer  agreement meets all requirements of the
1940 Act and rules thereunder.

         4. SERVICES NOT EXCLUSIVE.  The services furnished by Mitchell Hutchins
hereunder are not to be deemed exclusive and Mitchell  Hutchins shall be free to
furnish  similar  services to others so long as its services under this Contract
are not impaired  thereby.  Nothing in this Contract shall limit or restrict the
right of any director, officer or employee of Mitchell Hutchins, who may also be
a trustee,  officer or employee of the Trust, to engage in any other business or
to  devote  his or her time and  attention  in part to the  management  or other
aspects of any other business, whether of a similar or a dissimilar nature.

         5. COMPENSATION.

            (a) As compensation  for its service  activities under this contract
with respect to the Class A Shares,  Mitchell  Hutchins  shall  receive from the
Trust a service fee at the rate and under the terms and  conditions  of the Plan
adopted by the Trust with  respect to the Class A Shares of the Series,  as such
Plan is amended  from time to time,  and subject to any further  limitations  on
such fee as the Board may impose.

            (b) As  compensation  for its  activities  under this  contract with
respect  to the  distribution  of the Class A Shares,  Mitchell  Hutchins  shall
retain the initial sales  charge,  if any, on purchases of Class A Shares as set
forth in the Registration Statement.  Mitchell Hutchins is authorized to collect
the gross  proceeds  derived from the sale of the Class A Shares,  remit the net
asset value  thereof to the Trust upon  receipt of the  proceeds  and retain the
initial sales charge, if any.

            (c) As  compensation  for its  activities  under this  contract with
respect  to the  distribution  of the Class A Shares,  Mitchell  Hutchins  shall
receive all contingent  deferred sales charges imposed on redemptions of Class A
Shares of each  Series.  Whether and at what rate a  contingent  deferred  sales
charge will be imposed  with  respect to a  redemption  shall be  determined  in
accordance with, and in the manner set forth in, the Registration Statement.

            (d) Mitchell  Hutchins  may reallow any or all of the initial  sales
charges,  contingent  deferred sales  charges,  or service fees which it is paid
under this  Contract to such dealers as Mitchell  Hutchins may from time to time
determine.


                                      -3-
<PAGE>

         6. DUTIES OF THE TRUST.

            (a) The Trust  reserves  the right at any time to withdraw  offering
Class A Shares of any or all Series by written  notice to  Mitchell  Hutchins at
its principal office.

            (b)  The  Trust  shall  determine  in its  sole  discretion  whether
certificates  shall be issued with  respect to the Class A Shares.  If the Trust
has  determined  that  certificates  shall be  issued,  the Trust will not cause
certificates  representing  Class A Shares to be issued  unless so  requested by
shareholders.  If such request is  transmitted by Mitchell  Hutchins,  the Trust
will cause certificates evidencing Class A Shares to be issued in such names and
denominations as Mitchell Hutchins shall from time to time direct.

            (c) The Trust shall keep  Mitchell  Hutchins  fully  informed of its
affairs and shall make available to Mitchell Hutchins copies of all information,
financial  statements,  and other papers which Mitchell  Hutchins may reasonably
request  for  use in  connection  with  the  distribution  of  Class  A  Shares,
including,  without  limitation,  certified  copies of any financial  statements
prepared for the Trust by its independent  public accountant and such reasonable
number  of  copies  of the most  current  prospectus,  statement  of  additional
information,  and annual and interim reports of any Series as Mitchell  Hutchins
may  request,  and the Trust  shall  cooperate  fully in the efforts of Mitchell
Hutchins  to sell and  arrange  for the sale of the Class A Shares of the Series
and in the performance of Mitchell Hutchins under this Contract.

            (d) The Trust shall take,  from time to time, all necessary  action,
including payment of the related filing fee, as may be necessary to register the
Class A Shares  under the 1933 Act to the end that there will be  available  for
sale such number of Class A Shares as Mitchell Hutchins may be expected to sell.
The Trust agrees to file, from time to time, such amendments, reports, and other
documents as may be necessary in order that there will be no untrue statement of
a material fact in the  Registration  Statement,  nor any omission of a material
fact which omission would make the statements therein misleading.

            (e) The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of Class A Shares of each Series for sale
under the  securities  laws of such  states or other  jurisdictions  as Mitchell
Hutchins  and the Trust  may  approve,  and,  if  necessary  or  appropriate  in
connection therewith,  to qualify and maintain the qualification of the Trust as
a broker or dealer in such  jurisdictions;  provided that the Trust shall not be
required to amend its Trust Instrument or By-Laws to comply with the laws of any
jurisdiction,  to maintain an office in any jurisdiction, to change the terms of
the offering of the Class A Shares in any jurisdiction  from the terms set forth
in its  Registration  Statement,  to  qualify  as a foreign  corporation  in any
jurisdiction, or to consent to service of process in any jurisdiction other than
with  respect  to  claims  arising  out of the  offering  of the Class A Shares.
Mitchell  Hutchins shall furnish such information and other material relating to
its affairs and  activities as may be required by the Trust in  connection  with
such qualifications.

         7.  EXPENSES OF THE TRUST.  The Trust shall bear all costs and expenses
of registering  the Class A Shares with the  Securities and Exchange  Commission
and qualifying the Class A shares with state and other  regulatory  bodies,  and

                                      -4-
<PAGE>

shall  assume  expenses  related to  communications  with  shareholders  of each
Series,  including  (i) fees and  disbursements  of its counsel and  independent
public  accountant;  (ii) the  preparation,  filing and printing of registration
statements and/or prospectuses or statements of additional  information required
under the federal  securities  laws; (iii) the preparation and mailing of annual
and interim  reports,  prospectuses,  statements of additional  information  and
proxy materials to shareholders;  and (iv) the  qualifications of Class A Shares
for sale and of the  Trust as a broker or dealer  under the  securities  laws of
such  jurisdictions  as shall be  selected  by the Trust and  Mitchell  Hutchins
pursuant to Paragraph  6(e) hereof,  and the costs and expenses  payable to each
such jurisdiction for continuing qualification therein.

         8.  EXPENSES OF MITCHELL  HUTCHINS.  Mitchell  Hutchins  shall bear all
costs and expenses of (i) preparing, printing and distributing any materials not
prepared  by the  Trust  and  other  materials  used  by  Mitchell  Hutchins  in
connection  with the sale of Class A Shares under this  Contract,  including the
additional  cost of printing  copies of  prospectuses,  statements of additional
information,  and annual  and  interim  shareholder  reports  other than  copies
thereof  required for  distribution to existing  shareholders or for filing with
any federal or state  securities  authorities;  (ii) any expenses of advertising
incurred  by Mitchell  Hutchins  in  connection  with such  offering;  (iii) the
expenses of registration or  qualification  of Mitchell  Hutchins as a broker or
dealer  under  federal  or  state  laws  and the  expenses  of  continuing  such
registration  or  qualification;  and (iv)  all  compensation  paid to  Mitchell
Hutchins'  employees and others for selling Class A Shares,  and all expenses of
Mitchell Hutchins, its employees and others who engage in or support the sale of
Class A Shares as may be incurred in connection with their sales efforts.

         9. INDEMNIFICATION.

         (a) The Trust agrees to indemnify,  defend and hold Mitchell  Hutchins,
its officers and directors, and any person who controls Mitchell Hutchins within
the meaning of Section 15 of the 1933 Act,  free and  harmless  from and against
any and all claims,  demands,  liabilities  and expenses  (including the cost of
investigating  or defending such claims,  demands or liabilities and any counsel
fees incurred in connection  therewith) which Mitchell  Hutchins,  its officers,
directors or any such controlling  person may incur under the 1933 Act, or under
common  law or  otherwise,  arising  out of or  based  upon any  alleged  untrue
statement of a material fact contained in the Registration  Statement or arising
out of or based upon any alleged  omission to state a material  fact required to
be stated in the  Registration  Statement or  necessary  to make the  statements
therein not misleading,  except insofar as such claims, demands,  liabilities or
expenses arise out of or are based upon any such untrue statement or omission or
alleged  untrue  statement or omission  made in reliance  upon and in conformity
with information  furnished in writing by Mitchell Hutchins to the Trust for use
in the Registration Statement;  provided, however, that this indemnity agreement
shall not inure to the  benefit  of any person who is also an officer or trustee
of the Trust or who  controls  the Trust within the meaning of Section 15 of the
1933 Act, unless a court of competent jurisdiction shall determine,  or it shall
have been  determined by  controlling  precedent,  that such result would not be
against public policy as expressed in the 1933 Act; and further  provided,  that
in no event  shall  anything  contained  herein be so  construed  as to  protect
Mitchell  Hutchins  against any liability to the Trust or to the shareholders of
any Series to which Mitchell  Hutchins  would  otherwise be subject by reason of
willful  misfeasance,  bad faith or gross  negligence in the  performance of its

                                      -5-
<PAGE>

duties or by reason of its  reckless  disregard  of its  obligations  under this
Contract.  The  Trust  shall  not be  liable to  Mitchell  Hutchins  under  this
indemnity  agreement with respect to any claim made against Mitchell Hutchins or
any person  indemnified unless Mitchell Hutchins or other such person shall have
notified the Trust in writing of the claim  within a  reasonable  time after the
summons or other first written  notification giving information of the nature of
the claim shall have been served upon Mitchell Hutchins or such other person (or
after Mitchell  Hutchins or the person shall have received  notice of service on
any designated agent).  However,  failure to notify the Trust of any claim shall
not relieve the Trust from any liability which it may have to Mitchell  Hutchins
or any person  against whom such action is brought  otherwise than on account of
this indemnity agreement.  The Trust shall be entitled to participate at its own
expense in the  defense  or, if it so elects,  to assume the defense of any suit
brought to enforce any claims subject to this indemnity agreement.  If the Trust
elects to assume the defense of any such claim,  the defense  shall be conducted
by counsel chosen by the Trust and satisfactory to indemnified defendants in the
suit whose approval shall not be  unreasonably  withheld.  In the event that the
Trust  elects  to  assume  the  defense  of any suit  and  retain  counsel,  the
indemnified  defendants  shall  bear  the fees and  expenses  of any  additional
counsel retained by them. If the Trust does not elect to assume the defense of a
suit, it will reimburse the  indemnified  defendants for the reasonable fees and
expenses of any counsel retained by the indemnified defendants. The Trust agrees
to notify Mitchell  Hutchins  promptly of the  commencement of any litigation or
proceedings against it or any of its officers or trustees in connection with the
issuance or sale of any of its Class A Shares.

            (b) Mitchell  Hutchins  agrees to  indemnify,  defend,  and hold the
Trust,  its  officers  and trustees and any person who controls the Trust within
the meaning of Section 15 of the 1933 Act,  free and  harmless  from and against
any and all claims,  demands,  liabilities  and expenses  (including the cost of
investigating or defending  against such claims,  demands or liabilities and any
counsel fees incurred in connection  therewith) which the Trust, its trustees or
officers,  or any such controlling  person may incur under the 1933 Act or under
common  law or  otherwise  arising  out of or  based  upon  any  alleged  untrue
statement of a material fact  contained in  information  furnished in writing by
Mitchell  Hutchins to the Trust for use in the Registration  Statement,  arising
out of or based upon any alleged omission to state a material fact in connection
with  such  information  required  to be stated  in the  Registration  Statement
necessary  to make  such  information  not  misleading,  or  arising  out of any
agreement between Mitchell Hutchins and any retail dealer, or arising out of any
supplemental  sales  literature  or  advertising  used by  Mitchell  Hutchins in
connection  with its duties  under this  Contract.  Mitchell  Hutchins  shall be
entitled to participate, at its own expense, in the defense or, if it so elects,
to assume the defense of any suit brought to enforce the claim,  but if Mitchell
Hutchins elects to assume the defense, the defense shall be conducted by counsel
chosen by Mitchell Hutchins and satisfactory to the indemnified defendants whose
approval shall not be unreasonably withheld. In the event that Mitchell Hutchins
elects to assume the defense of any suit and retain  counsel,  the defendants in
the suit shall bear the fees and expenses of any additional  counsel retained by
them. If Mitchell  Hutchins does not elect to assume the defense of any suit, it
will reimburse the  indemnified  defendants in the suit for the reasonable  fees
and expenses of any counsel retained by them.


                                      -6-
<PAGE>

         10.  LIMITATION  OF LIABILITY OF THE TRUSTEES AND  SHAREHOLDERS  OF THE
TRUST. The trustees of the Trust and the shareholders of any Series shall not be
liable for any  obligations of the Trust or any Series under this Contract,  and
Mitchell  Hutchins  agrees that,  in  asserting  any rights or claims under this
Contract,  it shall  look only to the assets  and  property  of the Trust or the
particular  Series  in  settlement  of such  right  or  claims,  and not to such
trustees or shareholders.

         11. SERVICES  PROVIDED TO THE TRUST BY EMPLOYEES OF MITCHELL  HUTCHINS.
Any person, even though also an officer, director, employee or agent of Mitchell
Hutchins,  who may be or become an  officer,  trustee,  employee or agent of the
Trust,  shall be deemed,  when rendering  services to the Trust or acting in any
business of the Trust, to be rendering such services to or acting solely for the
Trust  and not as an  officer,  director,  employee  or agent or one  under  the
control or direction of Mitchell Hutchins even though paid by Mitchell Hutchins.

         12. DURATION AND TERMINATION.

            (a) This  Contract  shall  become  effective  upon the date  written
above,  provided that, with respect to any Series,  this Contract shall not take
effect  unless such action has first been  approved by vote of a majority of the
Board  and by vote of a  majority  of those  trustees  of the  Trust who are not
interested  persons  of the  Trust,  and have no  direct or  indirect  financial
interest  in the  operation  of  the  Plan  relating  to  the  Series  or in any
agreements  related  thereto (all such trustees  collectively  being referred to
herein as the "Independent Trustees") cast in person at a meeting called for the
purpose of voting on such action.

            (b) Unless sooner terminated as provided herein, this Contract shall
continue in effect for one year from the above written date. Thereafter,  if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each,  provided that such continuance is specifically  approved at
least annually (i) by a vote of a majority of the Independent Trustees,  cast in
person at a meeting called for the purpose of voting on such approval,  and (ii)
by the Board or with  respect to any given  Series by vote of a majority  of the
outstanding voting securities of the Class A Shares of such Series.

            (c) Notwithstanding the foregoing,  with respect to any Series, this
Contract may be terminated at any time,  without the payment of any penalty,  by
vote of the Board, by vote of a majority of the Independent  Trustees or by vote
of a majority of the outstanding voting securities of the Class A Shares of such
Series  on sixty  days'  written  notice to  Mitchell  Hutchins  or by  Mitchell
Hutchins at any time, without the payment of any penalty, on sixty days' written
notice to the Trust or such Series.  This Contract will automatically  terminate
in the event of its assignment.

            (d)  Termination  of this  Contract with respect to any given Series
shall  in no  way  affect  the  continued  validity  of  this  Contract  or  the
performance thereunder with respect to any other Series.

         13.  AMENDMENT OF THIS  CONTRACT.  No provision of this Contract may be
changed,  waived,  discharged or terminated orally, but only by an instrument in
writing  signed by the party against which  enforcement  of the change,  waiver,
discharge or termination is sought.


                                      -7-
<PAGE>

         14.  GOVERNING LAW. This Contract shall be construed in accordance with
the laws of the State of  Delaware  and the 1940  Act.  To the  extent  that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the l940 Act, the latter shall control.

         15.  NOTICE.  Any notice  required or  permitted  to be given by either
party to the other  shall be deemed  sufficient  upon  receipt in writing at the
other party's principal offices.

         16.  MISCELLANEOUS.  The  captions in this  Contract  are  included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this  Contract  shall be held or made invalid by a court  decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby.  This Contract  shall be binding upon and shall inure to the benefit of
the parties hereto and their  respective  successors.  As used in this Contract,
the terms "majority of the outstanding voting  securities,"  "interested person"
and "assignment" shall have the same meaning as such terms have in the 1940 Act.

            IN WITNESS WHEREOF, the parties hereto have caused this
Contract  to be  executed by their  officers  designated  as of the day and year
first above written.



    ATTEST:                          MITCHELL HUTCHINS SECURITIES TRUST



                                     By:
   ---------------------------          ------------------------------------


    ATTEST:                          MITCHELL HUTCHINS ASSET
                                     MANAGEMENT INC.


                                     By:
   ---------------------------          ------------------------------------




                                      -8-




                                                                  Exhibit (5)(b)

                       MITCHELL HUTCHINS SECURITIES TRUST

                              DISTRIBUTION CONTRACT
                                 CLASS B SHARES

      CONTRACT made as of __________, 2000, between MITCHELL HUTCHINS SECURITIES
TRUST, a Delaware business trust ("Trust") and MITCHELL HUTCHINS ASSET
MANAGEMENT INC., a Delaware corporation ("Mitchell Hutchins").

      WHEREAS the Trust is registered under the Investment Company Act of 1940,
as amended ("l940 Act"), as an open-end management investment company and
currently has two distinct series of shares of beneficial interest ("Series"),
which correspond to distinct portfolios and have been designated as PaineWebber
Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund; and

      WHEREAS the Trust's board of trustees ("Board") has established an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class B shares ("Class B Shares"); and

      WHEREAS the Trust has adopted a Plan of Distribution pursuant to Rule
12b-1 under the 1940 Act for its Class B Shares ("Plan") and desires to retain
Mitchell Hutchins as principal distributor in connection with the offering and
sale of the Class B Shares of the above-referenced Series and of such other
Series as may hereafter be designated by the Board and have Class B Shares
established; and

      WHEREAS Mitchell Hutchins is willing to act as principal distributor of
the Class B Shares of each such Series on the terms and conditions hereinafter
set forth;

      NOW, THEREFORE, in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

      1. APPOINTMENT. The Trust hereby appoints Mitchell Hutchins as its
exclusive agent to be the principal distributor to sell and to arrange for the
sale of the Class B Shares on the terms and for the period set forth in this
Contract. Mitchell Hutchins hereby accepts such appointment and agrees to act
hereunder. It is understood, however, that this appointment does not preclude
sales of the Class B Shares directly through the Trust's transfer agent in the
manner set forth in the Registration Statement. As used in this Contract, the
term "Registration Statement" shall mean the currently effective registration
statement of the Trust, and any supplements thereto, under the Securities Act of
1933, as amended ("1933 Act"), and the 1940 Act.



<PAGE>


      2. SERVICES AND DUTIES OF MITCHELL HUTCHINS.

            (a) Mitchell Hutchins agrees to sell Class B Shares on a best
efforts basis from time to time during the term of this Contract as agent for
the Trust and upon the terms described in the Registration Statement.

            (b) Upon the later of the date of this Contract or the initial
offering of the Class B Shares to the public by a Series, Mitchell Hutchins will
hold itself available to receive purchase orders, satisfactory to Mitchell
Hutchins, for Class B Shares of that Series and will accept such orders on
behalf of the Trust as of the time of receipt of such orders and promptly
transmit such orders as are accepted to the Trust's transfer agent. Purchase
orders shall be deemed effective at the time and in the manner set forth in the
Registration Statement.

            (c) Mitchell Hutchins in its discretion may enter into agreements to
sell Class B Shares to such registered and qualified retail dealers, including
but not limited to PaineWebber Incorporated ("PaineWebber"), as it may select.
In making agreements with such dealers, Mitchell Hutchins shall act only as
principal and not as agent for the Trust.

            (d) The offering price of the Class B Shares of each Series shall be
the net asset value per Share as next determined by the Trust following receipt
of an order at Mitchell Hutchins' principal office. The Trust shall promptly
furnish Mitchell Hutchins with a statement of each computation of net asset
value.

            (e) Mitchell Hutchins shall not be obligated to sell any certain
number of Class B Shares.

            (f) To facilitate redemption of Class B Shares by shareholders
directly or through dealers, Mitchell Hutchins is authorized but not required on
behalf of the Trust to repurchase Class B Shares presented to it by shareholders
and dealers at the price determined in accordance with, and in the manner set
forth in, the Registration Statement. Such price shall reflect the subtraction
of the contingent deferred sales charge, if any, computed in accordance with and
in the manner set forth in the Registration Statement.

            (g) Mitchell Hutchins shall provide ongoing shareholder services,
which include responding to shareholder inquiries, providing shareholders with
information on their investments in the Class B Shares and any other services
now or hereafter deemed to be appropriate subjects for the payments of "service
fees" under Rule 2830 of the Conduct Rules of the National Association of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").

            (h) Mitchell Hutchins shall have the right to use any list of
shareholders of the Trust or any other list of investors which it obtains in
connection with its provision of services under this Contract; provided,
however, that Mitchell Hutchins shall not sell or knowingly provide such list or
lists to any unaffiliated person.

      3. AUTHORIZATION TO ENTER INTO EXCLUSIVE DEALER AGREEMENTS AND TO DELEGATE
DUTIES AS DISTRIBUTOR. With respect to the Class B Shares of any or all Series,
Mitchell Hutchins may enter into an exclusive dealer agreement with PaineWebber


                                      -2-
<PAGE>

or any other registered and qualified dealer with respect to sales of the Class
B Shares or the provision of service activities. In a separate contract or as
part of any such exclusive dealer agreement, Mitchell Hutchins also may delegate
to PaineWebber or another registered and qualified dealer ("sub-distributor")
any or all of its duties specified in this Contract, provided that such separate
contract or exclusive dealer agreement imposes on the sub-distributor bound
thereby all applicable duties and conditions to which Mitchell Hutchins is
subject under this Contract, and further provided that such separate contract or
exclusive dealer agreement meets all requirements of the 1940 Act and rules
thereunder.

      4. SERVICES NOT EXCLUSIVE. The services furnished by Mitchell Hutchins
hereunder are not to be deemed exclusive and Mitchell Hutchins shall be free to
furnish similar services to others so long as its services under this Contract
are not impaired thereby. Nothing in this Contract shall limit or restrict the
right of any director, officer or employee of Mitchell Hutchins, who may also be
a trustee, officer or employee of the Trust, to engage in any other business or
to devote his or her time and attention in part to the management or other
aspects of any other business, whether of a similar or a dissimilar nature.

      5.    COMPENSATION.

            (a) As compensation for its service activities under this contract
with respect to the Class B Shares, Mitchell Hutchins shall receive from the
Trust a service fee at the rate and under the terms and conditions of the Plan
adopted by the Trust with respect to the Class B Shares of the Series, as such
Plan is amended from time to time, and subject to any further limitations on
such fee as the Board may impose.

            (b) As compensation for its activities under this contract with
respect to the distribution of the Class B Shares, Mitchell Hutchins shall
receive from the Trust a distribution fee at the rate and under the terms and
conditions of the Plan adopted by the Trust with respect to the Class B Shares
of the Series, as such Plan is amended from time to time, and subject to any
further limitations on such fee as the Board may impose.

            (c) As compensation for its activities under this contract with
respect to the distribution of the Class B Shares, Mitchell Hutchins shall
receive all contingent deferred sales charges imposed on redemptions of Class B
Shares of each Series. Whether and at what rate a contingent deferred sales
charge will be imposed with respect to a redemption shall be determined in
accordance with, and in the manner set forth in, the Registration Statement.

            (d) Mitchell Hutchins may reallow any or all of the distribution
fees, contingent deferred sales charges, or service fees which it is paid under
this Contract to such dealers as Mitchell Hutchins may from time to time
determine.

      6. DUTIES OF THE TRUST.

            (a) The Trust reserves the right at any time to withdraw offering
Class B Shares of any or all Series by written notice to Mitchell Hutchins at
its principal office.



                                      -3-
<PAGE>

            (b) The Trust shall determine in its sole discretion whether
certificates shall be issued with respect to the Class B Shares. If the Trust
has determined that certificates shall be issued, the Trust will not cause
certificates representing Class B Shares to be issued unless so requested by
shareholders. If such request is transmitted by Mitchell Hutchins, the Trust
will cause certificates evidencing Class B Shares to be issued in such names and
denominations as Mitchell Hutchins shall from time to time direct.

            (c) The Trust shall keep Mitchell Hutchins fully informed of its
affairs and shall make available to Mitchell Hutchins copies of all information,
financial statements, and other papers which Mitchell Hutchins may reasonably
request for use in connection with the distribution of Class B Shares,
including, without limitation, certified copies of any financial statements
prepared for the Trust by its independent public accountant and such reasonable
number of copies of the most current prospectus, statement of additional
information, and annual and interim reports of any Series as Mitchell Hutchins
may request, and the Trust shall cooperate fully in the efforts of Mitchell
Hutchins to sell and arrange for the sale of the Class B Shares of the Series
and in the performance of Mitchell Hutchins under this Contract.

            (d) The Trust shall take, from time to time, all necessary action,
including payment of the related filing fee, as may be necessary to register the
Class B Shares under the 1933 Act to the end that there will be available for
sale such number of Class B Shares as Mitchell Hutchins may be expected to sell.
The Trust agrees to file, from time to time, such amendments, reports, and other
documents as may be necessary in order that there will be no untrue statement of
a material fact in the Registration Statement, nor any omission of a material
fact which omission would make the statements therein misleading.

            (e) The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of Class B Shares of each Series for sale
under the securities laws of such states or other jurisdictions as Mitchell
Hutchins and the Trust may approve, and, if necessary or appropriate in
connection therewith, to qualify and maintain the qualification of the Trust as
a broker or dealer in such jurisdictions; provided that the Trust shall not be
required to amend its Trust Instrument or By-Laws to comply with the laws of any
jurisdiction, to maintain an office in any jurisdiction, to change the terms of
the offering of the Class B Shares in any jurisdiction from the terms set forth
in its Registration Statement, to qualify as a foreign corporation in any
jurisdiction, or to consent to service of process in any jurisdiction other than
with respect to claims arising out of the offering of the Class B Shares.
Mitchell Hutchins shall furnish such information and other material relating to
its affairs and activities as may be required by the Trust in connection with
such qualifications.

      7. EXPENSES OF THE TRUST. The Trust shall bear all costs and expenses of
registering the Class B Shares with the Securities and Exchange Commission and
qualifying the Class B shares with state and other regulatory bodies, and shall
assume expenses related to communications with shareholders of each Series,
including (i) fees and disbursements of its counsel and independent public
accountant; (ii) the preparation, filing and printing of registration statements
and/or prospectuses or statements of additional information required under the
federal securities laws; (iii) the preparation and mailing of annual and interim
reports, prospectuses, statements of additional information and proxy materials


                                      -4-
<PAGE>

to shareholders; and (iv) the qualifications of Class B Shares for sale and of
the Trust as a broker or dealer under the securities laws of such jurisdictions
as shall be selected by the Trust and Mitchell Hutchins pursuant to Paragraph
6(e) hereof, and the costs and expenses payable to each such jurisdiction for
continuing qualification therein.

      8. EXPENSES OF MITCHELL HUTCHINS. Mitchell Hutchins shall bear all costs
and expenses of (i) preparing, printing and distributing any materials not
prepared by the Trust and other materials used by Mitchell Hutchins in
connection with the sale of Class B Shares under this Contract, including the
additional cost of printing copies of prospectuses, statements of additional
information, and annual and interim shareholder reports other than copies
thereof required for distribution to existing shareholders or for filing with
any federal or state securities authorities; (ii) any expenses of advertising
incurred by Mitchell Hutchins in connection with such offering; (iii) the
expenses of registration or qualification of Mitchell Hutchins as a broker or
dealer under federal or state laws and the expenses of continuing such
registration or qualification; and (iv) all compensation paid to Mitchell
Hutchins' employees and others for selling Class B Shares, and all expenses of
Mitchell Hutchins, its employees and others who engage in or support the sale of
Class B Shares as may be incurred in connection with their sales efforts.

      9.    INDEMNIFICATION.

            (a) The Trust agrees to indemnify, defend and hold Mitchell
Hutchins, its officers and directors, and any person who controls Mitchell
Hutchins within the meaning of Section 15 of the 1933 Act, free and harmless
from and against any and all claims, demands, liabilities and expenses
(including the cost of investigating or defending such claims, demands or
liabilities and any counsel fees incurred in connection therewith) which
Mitchell Hutchins, its officers, directors or any such controlling person may
incur under the 1933 Act, or under common law or otherwise, arising out of or
based upon any alleged untrue statement of a material fact contained in the
Registration Statement or arising out of or based upon any alleged omission to
state a material fact required to be stated in the Registration Statement or
necessary to make the statements therein not misleading, except insofar as such
claims, demands, liabilities or expenses arise out of or are based upon any such
untrue statement or omission or alleged untrue statement or omission made in
reliance upon and in conformity with information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement; provided,
however, that this indemnity agreement shall not inure to the benefit of any
person who is also an officer or trustee of the Trust or who controls the Trust
within the meaning of Section 15 of the 1933 Act, unless a court of competent
jurisdiction shall determine, or it shall have been determined by controlling
precedent, that such result would not be against public policy as expressed in
the 1933 Act; and further provided, that in no event shall anything contained
herein be so construed as to protect Mitchell Hutchins against any liability to
the Trust or to the shareholders of any Series to which Mitchell Hutchins would
otherwise be subject by reason of willful misfeasance, bad faith or gross
negligence in the performance of its duties or by reason of its reckless
disregard of its obligations under this Contract. The Trust shall not be liable
to Mitchell Hutchins under this indemnity agreement with respect to any claim


                                      -5-
<PAGE>

made against Mitchell Hutchins or any person indemnified unless Mitchell
Hutchins or other such person shall have notified the Trust in writing of the
claim within a reasonable time after the summons or other first written
notification giving information of the nature of the claim shall have been
served upon Mitchell Hutchins or such other person (or after Mitchell Hutchins
or the person shall have received notice of service on any designated agent).
However, failure to notify the Trust of any claim shall not relieve the Trust
from any liability which it may have to Mitchell Hutchins or any person against
whom such action is brought otherwise than on account of this indemnity
agreement. The Trust shall be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any claims subject to this indemnity agreement. If the Trust elects to
assume the defense of any such claim, the defense shall be conducted by counsel
chosen by the Trust and satisfactory to indemnified defendants in the suit whose
approval shall not be unreasonably withheld. In the event that the Trust elects
to assume the defense of any suit and retain counsel, the indemnified defendants
shall bear the fees and expenses of any additional counsel retained by them. If
the Trust does not elect to assume the defense of a suit, it will reimburse the
indemnified defendants for the reasonable fees and expenses of any counsel
retained by the indemnified defendants. The Trust agrees to notify Mitchell
Hutchins promptly of the commencement of any litigation or proceedings against
it or any of its officers or trustees in connection with the issuance or sale of
any of its Class B Shares.

            (b) Mitchell Hutchins agrees to indemnify, defend, and hold the
Trust, its officers and trustees and any person who controls the Trust within
the meaning of Section 15 of the 1933 Act, free and harmless from and against
any and all claims, demands, liabilities and expenses (including the cost of
investigating or defending against such claims, demands or liabilities and any
counsel fees incurred in connection therewith) which the Trust, its trustees or
officers, or any such controlling person may incur under the 1933 Act or under
common law or otherwise arising out of or based upon any alleged untrue
statement of a material fact contained in information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement, arising
out of or based upon any alleged omission to state a material fact in connection
with such information required to be stated in the Registration Statement
necessary to make such information not misleading, or arising out of any
agreement between Mitchell Hutchins and any retail dealer, or arising out of any
supplemental sales literature or advertising used by Mitchell Hutchins in
connection with its duties under this Contract. Mitchell Hutchins shall be
entitled to participate, at its own expense, in the defense or, if it so elects,
to assume the defense of any suit brought to enforce the claim, but if Mitchell
Hutchins elects to assume the defense, the defense shall be conducted by counsel
chosen by Mitchell Hutchins and satisfactory to the indemnified defendants whose
approval shall not be unreasonably withheld. In the event that Mitchell Hutchins
elects to assume the defense of any suit and retain counsel, the defendants in
the suit shall bear the fees and expenses of any additional counsel retained by
them. If Mitchell Hutchins does not elect to assume the defense of any suit, it
will reimburse the indemnified defendants in the suit for the reasonable fees
and expenses of any counsel retained by them.

      10. LIMITATION OF LIABILITY OF THE TRUSTEES AND SHAREHOLDERS OF THE TRUST.
The trustees of the Trust and the shareholders of any Series shall not be liable
for any obligations of the Trust or any Series under this Contract, and Mitchell
Hutchins agrees that, in asserting any rights or claims under this Contract, it


                                      -6-
<PAGE>

shall look only to the assets and property of the Trust or the particular Series
in settlement of such right or claims, and not to such trustees or shareholders.

      11. SERVICES PROVIDED TO THE TRUST BY EMPLOYEES OF MITCHELL HUTCHINS. Any
person, even though also an officer, director, employee or agent of Mitchell
Hutchins, who may be or become an officer, trustee, employee or agent of the
Trust, shall be deemed, when rendering services to the Trust or acting in any
business of the Trust, to be rendering such services to or acting solely for the
Trust and not as an officer, director, employee or agent or one under the
control or direction of Mitchell Hutchins even though paid by Mitchell Hutchins.

      12.   DURATION AND TERMINATION.

            (a) This Contract shall become effective upon the date written
above, provided that, with respect to any Series, this Contract shall not take
effect unless such action has first been approved by vote of a majority of the
Board and by vote of a majority of those trustees of the Trust who are not
interested persons of the Trust, and have no direct or indirect financial
interest in the operation of the Plan relating to the Series or in any
agreements related thereto (all such trustees collectively being referred to
herein as the "Independent Trustees"), cast in person at a meeting called for
the purpose of voting on such action.

            (b) Unless sooner terminated as provided herein, this Contract shall
continue in effect for one year from the above written date. Thereafter, if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each, provided that such continuance is specifically approved at
least annually (i) by a vote of a majority of the Independent Trustees, cast in
person at a meeting called for the purpose of voting on such approval, and (ii)
by the Board or with respect to any given Series by vote of a majority of the
outstanding voting securities of the Class B Shares of such Series.

            (c) Notwithstanding the foregoing, with respect to any Series, this
Contract may be terminated at any time, without the payment of any penalty, by
vote of the Board, by vote of a majority of the Independent Trustees or by vote
of a majority of the outstanding voting securities of the Class B Shares of such
Series on sixty days' written notice to Mitchell Hutchins or by Mitchell
Hutchins at any time, without the payment of any penalty, on sixty days' written
notice to the Trust or such Series. This Contract will automatically terminate
in the event of its assignment.

            (d) Termination of this Contract with respect to any given Series
shall in no way affect the continued validity of this Contract or the
performance thereunder with respect to any other Series.

      13. AMENDMENT OF THIS CONTRACT. No provision of this Contract may be
changed, waived, discharged or terminated orally, but only by an instrument in
writing signed by the party against which enforcement of the change, waiver,
discharge or termination is sought.



                                      -7-
<PAGE>

      14. GOVERNING LAW. This Contract shall be construed in accordance with the
laws of the State of Delaware and the 1940 Act. To the extent that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the l940 Act, the latter shall control.

      15. NOTICE. Any notice required or permitted to be given by either party
to the other shall be deemed sufficient upon receipt in writing at the other
party's principal offices.

      16. MISCELLANEOUS. The captions in this Contract are included for
convenience of reference only and in no way define or delimit any of the
provisions hereof or otherwise affect their construction or effect. If any
provision of this Contract shall be held or made invalid by a court decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby. This Contract shall be binding upon and shall inure to the benefit of
the parties hereto and their respective successors. As used in this Contract,
the terms "majority of the outstanding voting securities," "interested person"
and "assignment" shall have the same meaning as such terms have in the 1940 Act.

      IN WITNESS WHEREOF, the parties hereto have caused this Contract to be
executed by their officers designated as of the day and year first above
written.



   ATTEST:                          MITCHELL HUTCHINS SECURITIES TRUST



   --------------------             By:
                                       --------------------------------

   ATTEST:                          MITCHELL HUTCHINS ASSET
                                    MANAGEMENT INC.


   --------------------             By:
                                       --------------------------------


















                                      -8-



                                                                  Exhibit (5)(c)

                       MITCHELL HUTCHINS SECURITIES TRUST

                              DISTRIBUTION CONTRACT
                                 CLASS C SHARES

      CONTRACT made as of __________, 2000 between MITCHELL HUTCHINS SECURITIES
TRUST, a Delaware business trust ("Trust"), and MITCHELL HUTCHINS ASSET
MANAGEMENT INC., a Delaware corporation ("Mitchell Hutchins").

      WHEREAS the Trust is registered under the Investment Company Act of l940,
as amended ("l940 Act"), as an open-end management investment company and
currently has two distinct series of shares of beneficial interest ("Series"),
which correspond to distinct portfolios and have been designated as PaineWebber
Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund; and

      WHEREAS the Trust's board of trustees ("Board") has established an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class C shares ("Class C Shares"); and

      WHEREAS the Trust has adopted a Plan of Distribution pursuant to Rule
12b-1 under the 1940 Act for its Class C Shares ("Plan") and desires to retain
Mitchell Hutchins as principal distributor in connection with the offering and
sale of the Class C Shares of the above-referenced Series and of such other
Series as may hereafter be designated by the Board and have Class C Shares
established; and

      WHEREAS Mitchell Hutchins is willing to act as principal distributor of
the Class C Shares of each such Series on the terms and conditions hereinafter
set forth;

      NOW, THEREFORE, in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

      1. APPOINTMENT. The Trust hereby appoints Mitchell Hutchins as its
exclusive agent to be the principal distributor to sell and to arrange for the
sale of the Class C Shares on the terms and for the period set forth in this
Contract. Mitchell Hutchins hereby accepts such appointment and agrees to act
hereunder. It is understood, however, that this appointment does not preclude
sales of the Class C Shares directly through the Trust's transfer agent in the
manner set forth in the Registration Statement. As used in this Contract, the
term "Registration Statement" shall mean the currently effective registration
statement of the Trust, and any supplements thereto, under the Securities Act of
1933, as amended ("1933 Act"), and the 1940 Act.

      2. SERVICES AND DUTIES OF MITCHELL HUTCHINS.

            (a) Mitchell Hutchins agrees to sell Class C Shares on a best
efforts basis from time to time during the term of this Contract as agent for
the Trust and upon the terms described in the Registration Statement.


<PAGE>

            (b) Upon the later of the date of this Contract or the initial
offering of the Class C Shares to the public by a Series, Mitchell Hutchins will
hold itself available to receive purchase orders, satisfactory to Mitchell
Hutchins, for Class C Shares of that Series and will accept such orders on
behalf of the Trust as of the time of receipt of such orders and promptly
transmit such orders as are accepted to the Trust's transfer agent. Purchase
orders shall be deemed effective at the time and in the manner set forth in the
Registration Statement.

            (c) Mitchell Hutchins in its discretion may enter into agreements to
sell Class C Shares to such registered and qualified retail dealers, including
but not limited to PaineWebber Incorporated ("PaineWebber"), as it may select.
In making agreements with such dealers, Mitchell Hutchins shall act only as
principal and not as agent for the Trust.

            (d) The offering price of the Class C Shares of each Series shall be
the net asset value per Share as next determined by the Trust following receipt
of an order at Mitchell Hutchins' principal office. The Trust shall promptly
furnish Mitchell Hutchins with a statement of each computation of net asset
value.

            (e) Mitchell Hutchins shall not be obligated to sell any certain
number of Class C Shares.

            (f) To facilitate redemption of Class C Shares by shareholders
directly or through dealers, Mitchell Hutchins is authorized but not required on
behalf of the Trust to repurchase Class C Shares presented to it by shareholders
and dealers at the price determined in accordance with, and in the manner set
forth in, the Registration Statement. Such price shall reflect the subtraction
of the contingent deferred sales charge, if any, computed in accordance with and
in the manner set forth in the Registration Statement.

            (g) Mitchell Hutchins shall provide ongoing shareholder services,
which include responding to shareholder inquiries, providing shareholders with
information on their investments in the Class C Shares and any other services
now or hereafter deemed to be appropriate subjects for the payments of "service
fees" under Rule 2830 of the Conduct Rules of the National Association of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").

            (h) Mitchell Hutchins shall have the right to use any list of
shareholders of the Trust or any other list of investors which it obtains in
connection with its provision of services under this Contract; provided,
however, that Mitchell Hutchins shall not sell or knowingly provide such list or
lists to any unaffiliated person.

      3. AUTHORIZATION TO ENTER INTO EXCLUSIVE DEALER AGREEMENTS AND TO DELEGATE
DUTIES AS DISTRIBUTOR. With respect to the Class C Shares of any or all Series,
Mitchell Hutchins may enter into an exclusive dealer agreement with PaineWebber
or any other registered and qualified dealer with respect to sales of the Class
C Shares or the provision of service activities. In a separate contract or as
part of any such exclusive dealer agreement, Mitchell Hutchins also may delegate
to PaineWebber or another registered and qualified dealer ("sub-distributor")
any or all of its duties specified in this Contract, provided that such separate
contract or exclusive dealer agreement imposes on the sub-distributor bound
thereby all applicable duties and conditions to which Mitchell Hutchins is


                                      -2-
<PAGE>

subject under this Contract, and further provided that such separate contract or
exclusive dealer agreement meets all requirements of the 1940 Act and rules
thereunder.

      4. SERVICES NOT EXCLUSIVE. The services furnished by Mitchell Hutchins
hereunder are not to be deemed exclusive and Mitchell Hutchins shall be free to
furnish similar services to others so long as its services under this Contract
are not impaired thereby. Nothing in this Contract shall limit or restrict the
right of any director, officer or employee of Mitchell Hutchins, who may also be
a trustee, officer or employee of the Trust, to engage in any other business or
to devote his or her time and attention in part to the management or other
aspects of any other business, whether of a similar or a dissimilar nature.

      5.    COMPENSATION.

            (a) As compensation for its service activities under this contract
with respect to the Class C Shares, Mitchell Hutchins shall receive from the
Trust a service fee at the rate and under the terms and conditions of the Plan
adopted by the Trust with respect to the Class C Shares of the Series, as such
Plan is amended from time to time, and subject to any further limitations on
such fee as the Board may impose.

            (b) As compensation for its activities under this contract with
respect to the distribution of the Class C Shares, Mitchell Hutchins shall
receive from the Trust a distribution fee at the rate and under the terms and
conditions of the Plan adopted by the Trust with respect to the Class C Shares
of the Series, as such Plan is amended from time to time, and subject to any
further limitations on such fee as the Board may impose.

            (c) As compensation for its activities under this contract with
respect to the distribution of the Class C Shares, Mitchell Hutchins shall
receive all contingent deferred sales charges imposed on redemptions of Class C
Shares of each Series. Whether and at what rate a contingent deferred sales
charge will be imposed with respect to a redemption shall be determined in
accordance with, and in the manner set forth in, the Registration Statement.

            (d) Mitchell Hutchins may reallow any or all of the distribution
fees, contingent deferred sales charges, or service fees which it is paid under
this Contract to such dealers as Mitchell Hutchins may from time to time
determine.

      6. DUTIES OF THE TRUST.

            (a) The Trust reserves the right at any time to withdraw offering
Class C Shares of any or all Series by written notice to Mitchell Hutchins at
its principal office.

            (b) The Trust shall determine in its sole discretion whether
certificates shall be issued with respect to the Class C Shares. If the Trust
has determined that certificates shall be issued, the Trust will not cause
certificates representing Class C Shares to be issued unless so requested by
shareholders. If such request is transmitted by Mitchell Hutchins, the Trust


                                      -3-
<PAGE>

will cause certificates evidencing Class C Shares to be issued in such names and
denominations as Mitchell Hutchins shall from time to time direct.

            (c) The Trust shall keep Mitchell Hutchins fully informed of its
affairs and shall make available to Mitchell Hutchins copies of all information,
financial statements, and other papers which Mitchell Hutchins may reasonably
request for use in connection with the distribution of Class C Shares,
including, without limitation, certified copies of any financial statements
prepared for the Trust by its independent public accountant and such reasonable
number of copies of the most current prospectus, statement of additional
information, and annual and interim reports of any Series as Mitchell Hutchins
may request, and the Trust shall cooperate fully in the efforts of Mitchell
Hutchins to sell and arrange for the sale of the Class C Shares of the Series
and in the performance of Mitchell Hutchins under this Contract.

            (d) The Trust shall take, from time to time, all necessary action,
including payment of the related filing fee, as may be necessary to register the
Class C Shares under the 1933 Act to the end that there will be available for
sale such number of Class C Shares as Mitchell Hutchins may be expected to sell.
The Trust agrees to file, from time to time, such amendments, reports, and other
documents as may be necessary in order that there will be no untrue statement of
a material fact in the Registration Statement, nor any omission of a material
fact which omission would make the statements therein misleading.

            (e) The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of Class C Shares of each Series for sale
under the securities laws of such states or other jurisdictions as Mitchell
Hutchins and the Trust may approve, and, if necessary or appropriate in
connection therewith, to qualify and maintain the qualification of the Trust as
a broker or dealer in such jurisdictions; provided that the Trust shall not be
required to amend its Trust Instrument or By-Laws to comply with the laws of any
jurisdiction, to maintain an office in any jurisdiction, to change the terms of
the offering of the Class C Shares in any jurisdiction from the terms set forth
in its Registration Statement, to qualify as a foreign corporation in any
jurisdiction, or to consent to service of process in any jurisdiction other than
with respect to claims arising out of the offering of the Class C Shares.
Mitchell Hutchins shall furnish such information and other material relating to
its affairs and activities as may be required by the Trust in connection with
such qualifications.

      7. EXPENSES OF THE TRUST. The Trust shall bear all costs and expenses of
registering the Class C Shares with the Securities and Exchange Commission and
qualifying the Class C shares with state and other regulatory bodies, and shall
assume expenses related to communications with shareholders of each Series,
including (i) fees and disbursements of its counsel and independent public
accountant; (ii) the preparation, filing and printing of registration statements
and/or prospectuses or statements of additional information required under the
federal securities laws; (iii) the preparation and mailing of annual and interim
reports, prospectuses, statements of additional information and proxy materials
to shareholders; and (iv) the qualifications of Class C Shares for sale and of
the Trust as a broker or dealer under the securities laws of such jurisdictions
as shall be selected by the Trust and Mitchell Hutchins pursuant to Paragraph


                                      -4-
<PAGE>

6(e) hereof, and the costs and expenses payable to each such jurisdiction for
continuing qualification therein.

      8. EXPENSES OF MITCHELL HUTCHINS. Mitchell Hutchins shall bear all costs
and expenses of (i) preparing, printing and distributing any materials not
prepared by the Trust and other materials used by Mitchell Hutchins in
connection with the sale of Class C Shares under this Contract, including the
additional cost of printing copies of prospectuses, statements of additional
information, and annual and interim shareholder reports other than copies
thereof required for distribution to existing shareholders or for filing with
any federal or state securities authorities; (ii) any expenses of advertising
incurred by Mitchell Hutchins in connection with such offering; (iii) the
expenses of registration or qualification of Mitchell Hutchins as a broker or
dealer under federal or state laws and the expenses of continuing such
registration or qualification; and (iv) all compensation paid to Mitchell
Hutchins' employees and others for selling Class C Shares, and all expenses of
Mitchell Hutchins, its employees and others who engage in or support the sale of
Class C Shares as may be incurred in connection with their sales efforts.

      9.    INDEMNIFICATION.

            (a) The Trust agrees to indemnify, defend and hold Mitchell
Hutchins, its officers and directors, and any person who controls Mitchell
Hutchins within the meaning of Section 15 of the 1933 Act, free and harmless
from and against any and all claims, demands, liabilities and expenses
(including the cost of investigating or defending such claims, demands or
liabilities and any counsel fees incurred in connection therewith) which
Mitchell Hutchins, its officers, directors or any such controlling person may
incur under the 1933 Act, or under common law or otherwise, arising out of or
based upon any alleged untrue statement of a material fact contained in the
Registration Statement or arising out of or based upon any alleged omission to
state a material fact required to be stated in the Registration Statement or
necessary to make the statements therein not misleading, except insofar as such
claims, demands, liabilities or expenses arise out of or are based upon any such
untrue statement or omission or alleged untrue statement or omission made in
reliance upon and in conformity with information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement; provided,
however, that this indemnity agreement shall not inure to the benefit of any
person who is also an officer or trustee of the Trust or who controls the Trust
within the meaning of Section 15 of the 1933 Act, unless a court of competent
jurisdiction shall determine, or it shall have been determined by controlling
precedent, that such result would not be against public policy as expressed in
the 1933 Act; and further provided, that in no event shall anything contained
herein be so construed as to protect Mitchell Hutchins against any liability to
the Trust or to the shareholders of any Series to which Mitchell Hutchins would
otherwise be subject by reason of willful misfeasance, bad faith or gross
negligence in the performance of its duties or by reason of its reckless
disregard of its obligations under this Contract. The Trust shall not be liable
to Mitchell Hutchins under this indemnity agreement with respect to any claim
made against Mitchell Hutchins or any person indemnified unless Mitchell
Hutchins or other such person shall have notified the Trust in writing of the
claim within a reasonable time after the summons or other first written


                                      -5-
<PAGE>

notification giving information of the nature of the claim shall have been
served upon Mitchell Hutchins or such other person (or after Mitchell Hutchins
or the person shall have received notice of service on any designated agent).
However, failure to notify the Trust of any claim shall not relieve the Trust
from any liability which it may have to Mitchell Hutchins or any person against
whom such action is brought otherwise than on account of this indemnity
agreement. The Trust shall be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any claims subject to this indemnity agreement. If the Trust elects to
assume the defense of any such claim, the defense shall be conducted by counsel
chosen by the Trust and satisfactory to indemnified defendants in the suit whose
approval shall not be unreasonably withheld. In the event that the Trust elects
to assume the defense of any suit and retain counsel, the indemnified defendants
shall bear the fees and expenses of any additional counsel retained by them. If
the Trust does not elect to assume the defense of a suit, it will reimburse the
indemnified defendants for the reasonable fees and expenses of any counsel
retained by the indemnified defendants. The Trust agrees to notify Mitchell
Hutchins promptly of the commencement of any litigation or proceedings against
it or any of its officers or trustees in connection with the issuance or sale of
any of its Class C Shares.

            (b) Mitchell Hutchins agrees to indemnify, defend, and hold the
Trust, its officers and trustees and any person who controls the Trust within
the meaning of Section 15 of the 1933 Act, free and harmless from and against
any and all claims, demands, liabilities and expenses (including the cost of
investigating or defending against such claims, demands or liabilities and any
counsel fees incurred in connection therewith) which the Trust, its trustees or
officers, or any such controlling person may incur under the 1933 Act or under
common law or otherwise arising out of or based upon any alleged untrue
statement of a material fact contained in information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement, arising
out of or based upon any alleged omission to state a material fact in connection
with such information required to be stated in the Registration Statement
necessary to make such information not misleading, or arising out of any
agreement between Mitchell Hutchins and any retail dealer, or arising out of any
supplemental sales literature or advertising used by Mitchell Hutchins in
connection with its duties under this Contract. Mitchell Hutchins shall be
entitled to participate, at its own expense, in the defense or, if it so elects,
to assume the defense of any suit brought to enforce the claim, but if Mitchell
Hutchins elects to assume the defense, the defense shall be conducted by counsel
chosen by Mitchell Hutchins and satisfactory to the indemnified defendants whose
approval shall not be unreasonably withheld. In the event that Mitchell Hutchins
elects to assume the defense of any suit and retain counsel, the defendants in
the suit shall bear the fees and expenses of any additional counsel retained by
them. If Mitchell Hutchins does not elect to assume the defense of any suit, it
will reimburse the indemnified defendants in the suit for the reasonable fees
and expenses of any counsel retained by them.

      10. LIMITATION OF LIABILITY OF THE TRUSTEES AND SHAREHOLDERS OF THE TRUST.
The trustees of the Trust and the shareholders of any Series shall not be liable
for any obligations of the Trust or any Series under this Contract, and Mitchell
Hutchins agrees that, in asserting any rights or claims under this Contract, it
shall look only to the assets and property of the Trust or the particular Series
in settlement of such right or claims, and not to such trustees or shareholders.



                                      -6-
<PAGE>

      11. SERVICES PROVIDED TO THE TRUST BY EMPLOYEES OF MITCHELL HUTCHINS. Any
person, even though also an officer, director, employee or agent of Mitchell
Hutchins, who may be or become an officer, trustee, employee or agent of the
Trust, shall be deemed, when rendering services to the Trust or acting in any
business of the Trust, to be rendering such services to or acting solely for the
Trust and not as an officer, director, employee or agent or one under the
control or direction of Mitchell Hutchins even though paid by Mitchell Hutchins.

      12.   DURATION AND TERMINATION.

            (a) This Contract shall become effective upon the date written
above, provided that, with respect to any Series, this Contract shall not take
effect unless such action has first been approved by vote of a majority of the
Board and by vote of a majority of those trustees of the Trust who are not
interested persons of the Trust, and have no direct or indirect financial
interest in the operation of the Plan relating to the Series or in any
agreements related thereto (all such trustees collectively being referred to
herein as the "Independent Trustees"), cast in person at a meeting called for
the purpose of voting on such action.

            (b) Unless sooner terminated as provided herein, this Contract shall
continue in effect for one year from the above written date. Thereafter, if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each, provided that such continuance is specifically approved at
least annually (i) by a vote of a majority of the Independent Trustees, cast in
person at a meeting called for the purpose of voting on such approval, and (ii)
by the Board or with respect to any given Series by vote of a majority of the
outstanding voting securities of the Class C Shares of such Series.

            (c) Notwithstanding the foregoing, with respect to any Series, this
Contract may be terminated at any time, without the payment of any penalty, by
vote of the Board, by vote of a majority of the Independent Trustees or by vote
of a majority of the outstanding voting securities of the Class C Shares of such
Series on sixty days' written notice to Mitchell Hutchins or by Mitchell
Hutchins at any time, without the payment of any penalty, on sixty days' written
notice to the Trust or such Series. This Contract will automatically terminate
in the event of its assignment.

            (d) Termination of this Contract with respect to any given Series
shall in no way affect the continued validity of this Contract or the
performance thereunder with respect to any other Series.

      13. AMENDMENT OF THIS CONTRACT. No provision of this Contract may be
changed, waived, discharged or terminated orally, but only by an instrument in
writing signed by the party against which enforcement of the change, waiver,
discharge or termination is sought.

      14. GOVERNING LAW. This Contract shall be construed in accordance with the
laws of the State of Delaware and the 1940 Act. To the extent that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the l940 Act, the latter shall control.



                                      -7-
<PAGE>

      15. NOTICE. Any notice required or permitted to be given by either party
to the other shall be deemed sufficient upon receipt in writing at the other
party's principal offices.

      16. MISCELLANEOUS. The captions in this Contract are included for
convenience of reference only and in no way define or delimit any of the
provisions hereof or otherwise affect their construction or effect. If any
provision of this Contract shall be held or made invalid by a court decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby. This Contract shall be binding upon and shall inure to the benefit of
the parties hereto and their respective successors. As used in this Contract,
the terms "majority of the outstanding voting securities," "interested person"
and "assignment" shall have the same meaning as such terms have in the 1940 Act.

      IN WITNESS WHEREOF, the parties hereto have caused this Contract to be
executed by their officers designated as of the day and year first above
written.



   ATTEST:                          MITCHELL HUTCHINS SECURITIES TRUST


   --------------------             By:
                                       --------------------------------

   ATTEST:                          MITCHELL HUTCHINS ASSET
                                    MANAGEMENT INC.


   --------------------             By:
                                       --------------------------------

















                                      -8-








                                                                  Exhibit (5)(d)

                       MITCHELL HUTCHINS SECURITIES TRUST

                              DISTRIBUTION CONTRACT
                                 CLASS Y SHARES



      CONTRACT made as of __________, 2000 between MITCHELL HUTCHINS SECURITIES
TRUST, a Delaware business trust ("Trust"), and MITCHELL HUTCHINS ASSET
MANAGEMENT INC., a Delaware corporation ("Mitchell Hutchins").

      WHEREAS the Trust is registered under the Investment Company Act of 1940,
as amended ("l940 Act"), as an open-end management investment company and
currently has two distinct series of shares of beneficial interest ("Series"),
which correspond to distinct portfolios and have been designated as PaineWebber
Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund; and

      WHEREAS the Trust's board of trustees ("Board") has established an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class Y shares ("Class Y Shares"); and

      WHEREAS the Trust desires to retain Mitchell Hutchins as principal
distributor in connection with the offering and sale of the Class Y Shares of
the above-referenced Series and of such other Series as may hereafter be
designated by the Board and have Class Y Shares established; and

      WHEREAS Mitchell Hutchins is willing to act as principal distributor of
the Class Y Shares of each such Series on the terms and conditions hereinafter
set forth;

      NOW, THEREFORE, in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

      1. APPOINTMENT. The Trust hereby appoints Mitchell Hutchins as its
exclusive agent to be the principal distributor to sell and to arrange for the
sale of the Class Y Shares on the terms and for the period set forth in this
Contract. Mitchell Hutchins hereby accepts such appointment and agrees to act
hereunder. It is understood, however, that this appointment does not preclude
sales of the Class Y Shares directly through the Trust's transfer agent in the
manner set forth in the Registration Statement. As used in this Contract, the
term "Registration Statement" shall mean the currently effective registration
statement of the Trust, and any supplements thereto, under the Securities Act of
1933, as amended ("1933 Act"), and the 1940 Act.

      2. SERVICES AND DUTIES OF MITCHELL HUTCHINS.

            (a) Mitchell Hutchins agrees to sell Class Y Shares on a best
efforts basis from time to time during the term of this Contract as agent for
the Trust and upon the terms described in the Registration Statement.


<PAGE>

            (b) Upon the later of the date of this Contract or the initial
offering of the Class Y Shares by a Series, Mitchell Hutchins will hold itself
available to receive purchase orders, satisfactory to Mitchell Hutchins, for
Class Y Shares of that Series and will accept such orders on behalf of the Trust
as of the time of receipt of such orders and promptly transmit such orders as
are accepted to the Trust's transfer agent. Purchase orders shall be deemed
effective at the time and in the manner set forth in the Registration Statement.

            (c) Mitchell Hutchins in its discretion may enter into agreements to
sell Class Y Shares to such registered and qualified retail dealers, including
but not limited to PaineWebber Incorporated ("PaineWebber"), as it may select.
In making agreements with such dealers, Mitchell Hutchins shall act only as
principal and not as agent for the Trust.

            (d) The offering price of the Class Y Shares of each Series shall be
the net asset value per Share as next determined by the Trust following receipt
of an order at Mitchell Hutchins' principal office. The Trust shall promptly
furnish Mitchell Hutchins with a statement of each computation of net asset
value.

            (e) Mitchell Hutchins shall not be obligated to sell any certain
number of Class Y Shares.

            (f) To facilitate redemption of Class Y Shares by shareholders
directly or through dealers, Mitchell Hutchins is authorized but not required on
behalf of the Trust to repurchase Class Y Shares presented to it by shareholders
and dealers at the price determined in accordance with, and in the manner set
forth in, the Registration Statement.

            (g) Mitchell Hutchins shall have the right to use any list of
shareholders of the Trust or any other list of investors which it obtains in
connection with its provision of services under this Contract; provided,
however, that Mitchell Hutchins shall not sell or knowingly provide such list or
lists to any unaffiliated person.

      3. AUTHORIZATION TO ENTER INTO EXCLUSIVE DEALER CONTRACTS AND TO DELEGATE
DUTIES AS DISTRIBUTOR. With respect to the Class Y Shares of any or all Series,
Mitchell Hutchins may enter into an exclusive dealer agreement with PaineWebber
or any other registered and qualified dealer with respect to sales of the Class
Y Shares. In a separate contract or as part of any such exclusive dealer
agreement, Mitchell Hutchins also may delegate to PaineWebber or another
registered and qualified dealer ("sub-distributor") any or all of its duties
specified in this Contract, provided that such separate contract or exclusive
dealer agreement imposes on the sub-distributor bound thereby all applicable
duties and conditions to which Mitchell Hutchins is subject under this Contract,
and further provided that such separate contract or exclusive dealer agreement
meets all requirements of the 1940 Act and rules thereunder.


                                      -2-

<PAGE>

      4. SERVICES NOT EXCLUSIVE. The services furnished by Mitchell Hutchins
hereunder are not to be deemed exclusive and Mitchell Hutchins shall be free to
furnish similar services to others so long as its services under this Contract
are not impaired thereby. Nothing in this Contract shall limit or restrict the
right of any director, officer or employee of Mitchell Hutchins, who may also be
a trustee, officer or employee of the Trust, to engage in any other business or
to devote his or her time and attention in part to the management or other
aspects of any other business, whether of a similar or a dissimilar nature.

      5. COMPENSATION AND REIMBURSEMENT OF DISTRIBUTION EXPENSES. The Trust
shall have no obligation to compensate or reimburse Mitchell Hutchins for any
services performed by it hereunder.

      6. DUTIES OF THE TRUST.

            (a) The Trust reserves the right at any time to withdraw offering
Class Y Shares of any or all Series by written notice to Mitchell Hutchins at
its principal office.

            (b) The Trust shall determine in its sole discretion whether
certificates shall be issued with respect to the Class Y Shares. If the Trust
has determined that certificates shall be issued, the Trust will not cause
certificates representing Class Y Shares to be issued unless so requested by
shareholders. If such request is transmitted by Mitchell Hutchins, the Trust
will cause certificates evidencing Class Y Shares to be issued in such names and
denominations as Mitchell Hutchins shall from time to time direct.

            (c) The Trust shall keep Mitchell Hutchins fully informed of its
affairs and shall make available to Mitchell Hutchins copies of all information,
financial statements, and other papers which Mitchell Hutchins may reasonably
request for use in connection with the distribution of Class Y Shares,
including, without limitation, certified copies of any financial statements
prepared for the Trust by its independent public accountant and such reasonable
number of copies of the most current prospectus, statement of additional
information, and annual and interim reports of any Series as Mitchell Hutchins
may request, and the Trust shall cooperate fully in the efforts of Mitchell
Hutchins to sell and arrange for the sale of the Class Y Shares of the Series
and in the performance of Mitchell Hutchins under this Contract.

            (d) The Trust shall take, from time to time, all necessary action,
including payment of the related filing fee, as may be necessary to register the
Class Y Shares under the 1933 Act to the end that there will be available for
sale such number of Class Y Shares as Mitchell Hutchins may be expected to sell.
The Trust agrees to file, from time to time, such amendments, reports, and other
documents as may be necessary in order that there will be no untrue statement of
a material fact in the Registration Statement, nor any omission of a material
fact which omission would make the statements therein misleading.

            (e) The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of Class Y Shares of each Series for sale
under the securities laws of such states or other jurisdictions as Mitchell
Hutchins and the Trust may approve, and, if necessary or appropriate in
connection therewith, to qualify and maintain the qualification of the Trust as


                                      -3-
<PAGE>

a broker or dealer in such jurisdictions; provided that the Trust shall not be
required to amend its Trust Instrument or By-Laws to comply with the laws of any
jurisdiction, to maintain an office in any jurisdiction, to change the terms of
the offering of the Class Y Shares in any jurisdiction from the terms set forth
in its Registration Statement, to qualify as a foreign corporation in any
jurisdiction, or to consent to service of process in any jurisdiction other than
with respect to claims arising out of the offering of the Class Y Shares.
Mitchell Hutchins shall furnish such information and other material relating to
its affairs and activities as may be required by the Trust in connection with
such qualifications.

      7. EXPENSES OF THE TRUST. The Trust shall bear all costs and expenses of
registering the Class Y Shares with the Securities and Exchange Commission and
qualifying the Class Y shares with state and other regulatory bodies, and shall
assume expenses related to communications with shareholders of each Series,
including (i) fees and disbursements of its counsel and independent public
accountant; (ii) the preparation, filing and printing of registration statements
and/or prospectuses or statements of additional information required under the
federal securities laws; (iii) the preparation and mailing of annual and interim
reports, prospectuses, statements of additional information and proxy materials
to shareholders; and (iv) the qualifications of Class Y Shares for sale and of
the Trust as a broker or dealer under the securities laws of such jurisdictions
as shall be selected by the Trust and Mitchell Hutchins pursuant to Paragraph
6(e) hereof, and the costs and expenses payable to each such jurisdiction for
continuing qualification therein.

      8. EXPENSES OF MITCHELL HUTCHINS. Mitchell Hutchins shall bear all costs
and expenses of (i) preparing, printing and distributing any materials not
prepared by the Trust and other materials used by Mitchell Hutchins in
connection with the sale of Class Y Shares under this Contract, including the
additional cost of printing copies of prospectuses, statements of additional
information, and annual and interim shareholder reports other than copies
thereof required for distribution to existing shareholders or for filing with
any federal or state securities authorities; (ii) any expenses of advertising
incurred by Mitchell Hutchins in connection with such offering; (iii) the
expenses of registration or qualification of Mitchell Hutchins as a broker or
dealer under federal or state laws and the expenses of continuing such
registration or qualification; and (iv) all compensation paid to Mitchell
Hutchins' employees and others for selling Class Y Shares, and all expenses of
Mitchell Hutchins, its employees and others who engage in or support the sale of
Class Y Shares as may be incurred in connection with their sales efforts.

      9.    INDEMNIFICATION.

            (a) The Trust agrees to indemnify, defend and hold Mitchell
Hutchins, its officers and directors, and any person who controls Mitchell
Hutchins within the meaning of Section 15 of the 1933 Act, free and harmless
from and against any and all claims, demands, liabilities and expenses
(including the cost of investigating or defending such claims, demands or
liabilities and any counsel fees incurred in connection therewith) which
Mitchell Hutchins, its officers, directors or any such controlling person may
incur under the 1933 Act, or under common law or otherwise, arising out of or
based upon any alleged untrue statement of a material fact contained in the


                                      -4-
<PAGE>

Registration Statement or arising out of or based upon any alleged omission to
state a material fact required to be stated in the Registration Statement or
necessary to make the statements therein not misleading, except insofar as such
claims, demands, liabilities or expenses arise out of or are based upon any such
untrue statement or omission or alleged untrue statement or omission made in
reliance upon and in conformity with information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement; provided,
however, that this indemnity agreement shall not inure to the benefit of any
person who is also an officer or trustee of the Trust or who controls the Trust
within the meaning of Section 15 of the 1933 Act, unless a court of competent
jurisdiction shall determine, or it shall have been determined by controlling
precedent, that such result would not be against public policy as expressed in
the 1933 Act; and further provided, that in no event shall anything contained
herein be so construed as to protect Mitchell Hutchins against any liability to
the Trust or to the shareholders of any Series to which Mitchell Hutchins would
otherwise be subject by reason of willful misfeasance, bad faith or gross
negligence in the performance of its duties or by reason of its reckless
disregard of its obligations under this Contract. The Trust shall not be liable
to Mitchell Hutchins under this indemnity agreement with respect to any claim
made against Mitchell Hutchins or any person indemnified unless Mitchell
Hutchins or other such person shall have notified the Trust in writing of the
claim within a reasonable time after the summons or other first written
notification giving information of the nature of the claim shall have been
served upon Mitchell Hutchins or such other person (or after Mitchell Hutchins
or the person shall have received notice of service on any designated agent).
However, failure to notify the Trust of any claim shall not relieve the Trust
from any liability which it may have to Mitchell Hutchins or any person against
whom such action is brought otherwise than on account of this indemnity
agreement. The Trust shall be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any claims subject to this indemnity agreement. If the Trust elects to
assume the defense of any such claim, the defense shall be conducted by counsel
chosen by the Trust and satisfactory to indemnified defendants in the suit whose
approval shall not be unreasonably withheld. In the event that the Trust elects
to assume the defense of any suit and retain counsel, the indemnified defendants
shall bear the fees and expenses of any additional counsel retained by them. If
the Trust does not elect to assume the defense of a suit, it will reimburse the
indemnified defendants for the reasonable fees and expenses of any counsel
retained by the indemnified defendants. The Trust agrees to notify Mitchell
Hutchins promptly of the commencement of any litigation or proceedings against
it or any of its officers or trustees in connection with the issuance or sale of
any of its Class Y Shares.

            (b) Mitchell Hutchins agrees to indemnify, defend, and hold the
Trust, its officers and trustees, and any person who controls the Trust within
the meaning of Section 15 of the 1933 Act, free and harmless from and against
any and all claims, demands, liabilities and expenses (including the cost of
investigating or defending against such claims, demands or liabilities and any
counsel fees incurred in connection therewith) which the Trust, its trustees or
officers, or any such controlling person may incur under the 1933 Act or under
common law or otherwise arising out of or based upon any alleged untrue
statement of a material fact contained in information furnished in writing by
Mitchell Hutchins to the Trust for use in the Registration Statement, arising
out of or based upon any alleged omission to state a material fact in connection
with such information required to be stated in the Registration Statement
necessary to make such information not misleading, or arising out of any
agreement between Mitchell Hutchins and any retail dealer, or arising out of any


                                      -5-
<PAGE>

supplemental sales literature or advertising used by Mitchell Hutchins in
connection with its duties under this Contract. Mitchell Hutchins shall be
entitled to participate, at its own expense, in the defense or, if it so elects,
to assume the defense of any suit brought to enforce the claim, but if Mitchell
Hutchins elects to assume the defense, the defense shall be conducted by counsel
chosen by Mitchell Hutchins and satisfactory to the indemnified defendants whose
approval shall not be unreasonably withheld. In the event that Mitchell Hutchins
elects to assume the defense of any suit and retain counsel, the defendants in
the suit shall bear the fees and expenses of any additional counsel retained by
them. If Mitchell Hutchins does not elect to assume the defense of any suit, it
will reimburse the indemnified defendants in the suit for the reasonable fees
and expenses of any counsel retained by them.

      10. LIMITATION OF LIABILITY OF THE TRUSTEES AND SHAREHOLDERS OF THE TRUST.
The trustees of the Trust and the shareholders of any Series shall not be liable
for any obligations of the Trust or any Series under this Contract, and Mitchell
Hutchins agrees that, in asserting any rights or claims under this Contract, it
shall look only to the assets and property of the Trust or the particular Series
in settlement of such right or claims, and not to such trustees or shareholders.

      11. SERVICES PROVIDED TO THE TRUST BY EMPLOYEES OF MITCHELL HUTCHINS. Any
person, even though also an officer, director, employee or agent of Mitchell
Hutchins, who may be or become an officer, trustee, employee or agent of the
Trust, shall be deemed, when rendering services to the Trust or acting in any
business of the Trust, to be rendering such services to or acting solely for the
Trust and not as an officer, director, employee or agent or one under the
control or direction of Mitchell Hutchins even though paid by Mitchell Hutchins.

      12.   DURATION AND TERMINATION.

            (a) This Contract shall become effective upon the date written
above, provided that, with respect to any Series, this Contract shall not take
effect unless such action has first been approved by vote of a majority of the
Board and by vote of a majority of those trustees of the Trust who are not
interested persons of the Trust, and have no direct or indirect financial
interest in this Contract or in any agreements related thereto (all such
Trustees collectively being referred to herein as the "Independent Trustees"),
cast in person at a meeting called for the purpose of voting on such action.

            (b) Unless sooner terminated as provided herein, this Contract shall
continue in effect for one year from the above written date. Thereafter, if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each, provided that such continuance is specifically approved at
least annually (i) by a vote of a majority of the Independent Trustees, cast in
person at a meeting called for the purpose of voting on such approval, and (ii)
by the Board or with respect to any given Series by vote of a majority of the
outstanding voting securities of the Class Y Shares of such Series.

            (c) Notwithstanding the foregoing, with respect to any Series, this
Contract may be terminated at any time, without the payment of any penalty, by
vote of the Board, by vote of a majority of the Independent Trustees or by vote
of a majority of the outstanding voting securities of the Class Y Shares of such


                                      -6-
<PAGE>

Series on sixty days' written notice to Mitchell Hutchins or by Mitchell
Hutchins at any time, without the payment of any penalty, on sixty days' written
notice to the Trust or such Series. This Contract will automatically terminate
in the event of its assignment.

            (d) Termination of this Contract with respect to any given Series
shall in no way affect the continued validity of this Contract or the
performance thereunder with respect to any other Series.

      13. AMENDMENT OF THIS CONTRACT. No provision of this Contract may be
changed, waived, discharged or terminated orally, but only by an instrument in
writing signed by the party against which enforcement of the change, waiver,
discharge or termination is sought.

      14. GOVERNING LAW. This Contract shall be construed in accordance with the
laws of the State of Delaware and the 1940 Act. To the extent that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the l940 Act, the latter shall control.

      15. NOTICE. Any notice required or permitted to be given by either party
to the other shall be deemed sufficient upon receipt in writing at the other
party's principal offices.

      16. MISCELLANEOUS. The captions in this Contract are included for
convenience of reference only and in no way define or delimit any of the
provisions hereof or otherwise affect their construction or effect. If any
provision of this Contract shall be held or made invalid by a court decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby. This Contract shall be binding upon and shall inure to the benefit of
the parties hereto and their respective successors. As used in this Contract,
the terms "majority of the outstanding voting securities," "interested person"
and "assignment" shall have the same meaning as such terms have in the 1940 Act.













                                      -7-
<PAGE>


      IN WITNESS WHEREOF, the parties hereto have caused this Contract to be
executed by their officers designated as of the day and year first above
written.



   ATTEST:                          MITCHELL HUTCHINS SECURITIES TRUST



   --------------------             By:
                                       --------------------------------



   ATTEST:                          MITCHELL HUTCHINS ASSET
                                    MANAGEMENT INC.


   --------------------             By:
                                       --------------------------------
















                                      -8-


                                                                  Exhibit (5)(e)

                           EXCLUSIVE DEALER AGREEMENT

              CLASS A SHARES OF MITCHELL HUTCHINS SECURITIES TRUST



         AGREEMENT made as of __________,  2000, between Mitchell Hutchins Asset
Management Inc. ("Mitchell Hutchins"),  a Delaware corporation,  and PaineWebber
Incorporated ("PaineWebber"), a Delaware corporation.

         WHEREAS  Mitchell  Hutchins  Securities  Trust  ("Trust") is a Delaware
business trust registered  under the Investment  Company Act of 1940, as amended
("1940 Act"), as an open-end management investment company; and

         WHEREAS  the  Trust  currently  has two  distinct  series  of shares of
beneficial interest ("Series"), which correspond to distinct portfolios and have
been designated as PaineWebber  Enhanced S&P 500 Fund and  PaineWebber  Enhanced
Nasdaq-100 Fund; and

         WHEREAS the Trust's  board of trustees  ("Board")  has  established  an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class A shares  ("Class A  Shares")  and has  adopted a Plan of  Distribution
pursuant to Rule 12b-1 under the 1940 Act  ("Plan")  with respect to the Class A
Shares of the above-referenced  Series and of such other Series as may hereafter
be designated by the Board and have Class A Shares established; and

         WHEREAS Mitchell Hutchins has entered into a Distribution Contract with
the Trust  ("Distribution  Contract") pursuant to which Mitchell Hutchins serves
as principal distributor in connection with the offering and sale of the Class A
Shares of each such Series; and

         WHEREAS  Mitchell  Hutchins  desires  to  retain   PaineWebber  as  its
exclusive  agent in connection  with the offering and sale of the Class A Shares
of each  Series and to  delegate to  PaineWebber  performance  of certain of the
services which Mitchell  Hutchins  provides to the Trust under the  Distribution
Contract; and

         WHEREAS  PaineWebber is willing to act as Mitchell Hutchins'  exclusive
agent in  connection  with the  offering  and sale of such Class A Shares and to
perform such services on the terms and conditions hereinafter set forth;

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants contained herein, Mitchell Hutchins and PaineWebber agree as follows:

         1. APPOINTMENT.  Mitchell  Hutchins hereby appoints  PaineWebber as its
exclusive agent to sell and to arrange for the sale of the Class A Shares on the
terms and for the period set forth in this  Agreement.  Mitchell  Hutchins  also
appoints  PaineWebber as its agent for the performance of certain other services
set forth  herein  which  Mitchell  Hutchins  provides  to the  Trust  under the
Distribution  Contract.  PaineWebber hereby accepts such appointments and agrees
to act hereunder.  It is understood,  however,  that these  appointments  do not
preclude sales of Class A Shares directly  through the Trust's transfer agent in

<PAGE>

the manner set forth in the Registration  Statement.  As used in this Agreement,
the  term   "Registration   Statement"   shall  mean  the  currently   effective
Registration  Statement of the Trust,  and any  supplements  thereto,  under the
Securities Act of 1933, as amended ("1933 Act"), and the 1940 Act.

         2. SERVICES, DUTIES AND REPRESENTATIONS OF PAINEWEBBER.

            (a) PaineWebber  agrees to sell the Class A Shares on a best efforts
basis from time to time during the term of this  Agreement as agent for Mitchell
Hutchins and upon the terms  described in this  Agreement  and the  Registration
Statement.

            (b) Upon the  later of the  date of this  Agreement  or the  initial
offering  of Class A Shares by a Series  to the  public,  PaineWebber  will hold
itself  available to receive  orders,  satisfactory  to PaineWebber and Mitchell
Hutchins,  for the  purchase  of Class A Shares and will  accept  such orders on
behalf of  Mitchell  Hutchins  and the Trust as of the time of  receipt  of such
orders and will  promptly  transmit  such orders as are  accepted to the Trust's
transfer agent. Purchase orders shall be deemed effective at the time and in the
manner set forth in the Registration Statement.

            (c) PaineWebber in its discretion may sell Class A Shares to (i) its
correspondent  firms and customers of such firms and (ii) such other  registered
and  qualified  retail  dealers as it may  select,  subject to the  approval  of
Mitchell Hutchins. In making agreements with such dealers, PaineWebber shall act
only as principal and not as agent for Mitchell Hutchins or the Trust.

            (d) The offering price of the Class A Shares of each Series shall be
the net asset value per Share as next determined by the Trust following  receipt
of an order at PaineWebber's principal office, plus the applicable initial sales
charge,  if any, as set forth in the Registration  Statement.  Mitchell Hutchins
shall  promptly  furnish or  arrange  for the  furnishing  to  PaineWebber  of a
statement of each computation of net asset value.

            (e) PaineWebber shall not be obligated to sell any certain number of
Class A Shares.

            (f) To  facilitate  redemption  of  Class A Shares  by  shareholders
directly or through  dealers,  PaineWebber  is  authorized  but not  required on
behalf of Mitchell Hutchins and the Trust to repurchase Class A Shares presented
to it by shareholders,  its  correspondent  firms and other dealers at the price
determined in accordance  with, and in the manner set forth in, the Registration
Statement. Such price shall reflect the subtraction of the applicable contingent
deferred sales charge, if any, computed in accordance with and in the manner set
forth in the Registration Statement.

            (g) PaineWebber shall provide ongoing  shareholder  services,  which
include  responding  to  shareholder  inquiries,   providing  shareholders  with
information  on their  investments  in the Class A Shares and any other services
now or hereafter deemed to be appropriate  subjects for the payments of "service


                                      -2-
<PAGE>

fees"  under  Rule 2830 of the  Conduct  Rules of the  National  Association  of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").

            (h) PaineWebber  represents and warrants that: (i) it is a member in
good  standing of the NASD and agrees to abide by the Conduct Rules of the NASD;
(ii) it is  registered  as a  broker-dealer  with the  Securities  and  Exchange
Commission;  (iii) it will maintain any filings and licenses required by federal
and state laws to conduct the business  contemplated  under this Agreement;  and
(iv) it will comply with all federal and state laws and  regulations  applicable
to the offer and sale of the Class A Shares.

            (i)  PaineWebber  shall not incur any debts or obligations on behalf
of  Mitchell  Hutchins  or the Trust.  PaineWebber  shall bear all costs that it
incurs  in  selling  the  Class A Shares  and in  complying  with the  terms and
conditions of this Agreement as more specifically set forth in paragraph 8.

            (j)  PaineWebber  shall not permit any employee or agent to offer or
sell Class A Shares to the public  unless  such  person is duly  licensed  under
applicable federal and state laws and regulations.

            (k)  PaineWebber  shall not (i) furnish any  information or make any
representations  concerning the Class A Shares other than those contained in the
Registration  Statement  or in sales  literature  or  advertising  that has been
prepared or approved  by  Mitchell  Hutchins as provided in  paragraph 6 or (ii)
offer or sell the Class A Shares in  jurisdictions  in which  they have not been
approved for offer and sale.

         3.  SERVICES  NOT  EXCLUSIVE.  The services  furnished  by  PaineWebber
hereunder  are not to be  deemed  exclusive  and  PaineWebber  shall  be free to
furnish similar  services to others so long as its services under this Agreement
are not impaired thereby.  Nothing in this Agreement shall limit or restrict the
right of any  director,  officer or  employee of  PaineWebber  who may also be a
director,  trustee,  officer or employee of Mitchell  Hutchins or the Trust,  to
engage in any other  business or to devote his or her time and attention in part
to the management or other aspects of any other  business,  whether of a similar
or a dissimilar nature.

         4. COMPENSATION.

            (a) As compensation for its service  activities under this Agreement
with respect to the Class A Shares,  Mitchell  Hutchins shall pay to PaineWebber
service fees with respect to Class A Shares  maintained in shareholder  accounts
serviced by PaineWebber employees, correspondent firms and other dealers in such
amounts as Mitchell Hutchins and PaineWebber may from time to time agree upon.

            (b) As  compensation  for its  activities  under this Agreement with
respect to the distribution of the Class A Shares, PaineWebber shall retain that
portion of the offering  price  constituting  the  Discount to Selected  Dealers
("Discount"), if any, set forth in the Registration Statement for Class A shares
sold  with  an  initial  sales  charge  under  this  Agreement.  PaineWebber  is

                                      -3-
<PAGE>

authorized to collect the gross  proceeds  derived from the sale of such Class A
Shares;  remit the net asset value thereof to the Trust's Transfer Agent;  remit
to Mitchell  Hutchins the  difference  between the offering price of the Class A
Shares and the  applicable  Discount;  and retain  said  Discount.  Whether  the
offering  price of the Class A Shares  includes any initial  sales charge out of
which  a  Discount  may be  retained  by  PaineWebber  shall  be  determined  in
accordance with the Registration Statement.

            (c) Mitchell  Hutchins shall pay to PaineWebber such commissions and
other  compensation  for sales of the Class A Shares by  PaineWebber  employees,
correspondent  firms and other dealers as Mitchell  Hutchins and PaineWebber may
from time to time agree upon.

            (d) Mitchell Hutchins' obligation to pay compensation to PaineWebber
as agreed upon pursuant to this  paragraph 4 is not  contingent  upon receipt by
Mitchell  Hutchins  of any  compensation  from  the  Trust or  Series.  Mitchell
Hutchins  shall advise the Board of any  agreements or revised  agreements as to
compensation  to be paid by  Mitchell  Hutchins  to  PaineWebber  at their first
regular  meeting held after such  agreement  but shall not be required to obtain
prior approval for such agreements from the Board.

            (e)  PaineWebber  may reallow  all or any part of the service  fees,
commissions or other  compensation  which it is paid under this Agreement to its
correspondent  firms or other dealers,  in such amounts as PaineWebber  may from
time to time determine.

         5.  DUTIES OF MITCHELL HUTCHINS.

            (a) It is understood  that the Trust  reserves the right at any time
to  withdraw  all  offerings  of Class A Shares of any or all  Series by written
notice to Mitchell Hutchins.

            (b) Mitchell  Hutchins shall keep PaineWebber  fully informed of the
Trust's  affairs  and  shall  make  available  to  PaineWebber   copies  of  all
information,  financial  statements  and  other  papers  which  PaineWebber  may
reasonably  request  for use in  connection  with  the  distribution  of Class A
Shares,  including,  without  limitation,  certified  copies  of  any  financial
statements  prepared for the Trust by its independent public accountant and such
reasonable  number  of  copies  of the most  current  prospectus,  statement  of
additional  information,  and  annual  and  interim  reports  of any  Series  as
PaineWebber  may request,  and Mitchell  Hutchins shall  cooperate  fully in the
efforts of  PaineWebber  to sell and  arrange for the sale of the Class A Shares
and in the performance of PaineWebber under this Agreement.

            (c) Mitchell  Hutchins  shall comply with all state and federal laws
and regulations applicable to a distributor of the Class A Shares.

         6.  ADVERTISING.  Mitchell Hutchins agrees to make available such sales
and advertising materials relating to the Class A Shares as Mitchell Hutchins in
its discretion  determines  appropriate.  PaineWebber agrees to submit all sales
and  advertising  materials  developed  by it  relating to the Class A Shares to
Mitchell Hutchins for approval.  PaineWebber agrees not to publish or distribute
such materials to the public  without first  receiving such approval in writing.
Mitchell Hutchins shall assist PaineWebber in obtaining any regulatory approvals
of such materials that may be required of or desired by PaineWebber.



                                      -4-
<PAGE>

         7.  RECORDS.  PaineWebber  agrees to maintain  all records  required by
applicable state and federal laws and regulations relating to the offer and sale
of the Class A Shares.  Mitchell  Hutchins  and its  representatives  shall have
access to such records during normal business hours for review or copying.

         8.  EXPENSES  OF  PAINEWEBBER.  PaineWebber  shall  bear all  costs and
expenses of (i) preparing, printing, and distributing any materials not prepared
by the Trust or Mitchell  Hutchins and other  materials  used by  PaineWebber in
connection with its offering of Class A Shares for sale to the public;  (ii) any
expenses  of  advertising  incurred  by  PaineWebber  in  connection  with  such
offering;  (iii) the expenses of registration or qualification of PaineWebber as
a dealer or broker under  federal or state laws and the  expenses of  continuing
such  registration  or   qualification;   and  (iv)  all  compensation  paid  to
PaineWebber's  Investment  Executives or other  employees and others for selling
Class A Shares, and all expenses of PaineWebber,  its Investment  Executives and
employees  and others who engage in or support the sale of Class A Shares as may
be incurred in connection with their sales efforts.  PaineWebber shall bear such
additional  costs and expenses as it and Mitchell  Hutchins may agree upon, such
agreement to be evidenced in a writing signed by both parties. Mitchell Hutchins
shall advise the Board of any such agreement as to additional costs and expenses
borne by  PaineWebber  at their first regular  meeting held after such agreement
but shall not be required to obtain prior approval for such  agreements from the
Board.

         9. INDEMNIFICATION.

            (a)  Mitchell  Hutchins  agrees  to  indemnify,   defend,  and  hold
PaineWebber, its officers and directors, and any person who controls PaineWebber
within the  meaning of Section 15 of the 1933 Act,  free and  harmless  from and
against any and all claims,  demands,  liabilities,  and expenses (including the
cost of investigating or defending such claims,  demands, or liabilities and any
counsel fees incurred in connection therewith) which PaineWebber,  its officers,
directors,  or any such  controlling  person may incur under the 1933 Act, under
common  law or  otherwise,  arising  out of or  based  upon any  alleged  untrue
statement of a material fact contained in the  Registration  Statement;  arising
out of or based upon any alleged  omission to state a material  fact required to
be  stated  in the  Registration  Statement  thereof  or  necessary  to make the
statements in the Registration Statement thereof not misleading;  or arising out
of any  sales  or  advertising  materials  with  respect  to the  Class A Shares
provided by Mitchell Hutchins to PaineWebber.  However, this indemnity agreement
shall not apply to any claims, demands,  liabilities, or expenses that arise out
of or are based upon any such untrue  statement  or  omission or alleged  untrue
statement or omission made in reliance upon and in conformity  with  information
furnished in writing by PaineWebber to Mitchell Hutchins or the Trust for use in
the Registration  Statement or in any sales or advertising material; and further
provided, that in no event shall anything contained herein be so construed as to
protect  PaineWebber  against any liability to Mitchell Hutchins or the Trust or
to the  shareholders  of any  Series to which  PaineWebber  would  otherwise  be
subject by reason of willful misfeasance,  bad faith, or gross negligence in the
performance  of its  duties,  or by  reason  of its  reckless  disregard  of its
obligations under this Agreement.

            (b)  PaineWebber  agrees to  indemnify,  defend,  and hold  Mitchell
Hutchins and its officers and directors,  the Trust,  its officers and trustees,
and any person who controls Mitchell Hutchins or the Trust within the meaning of
Section  15 of the 1933 Act,  free and  harmless  from and  against  any and all
claims,  demands,  liabilities and expenses (including the cost of investigating
or defending  against such claims,  demands or liabilities  and any counsel fees
incurred in connection  therewith)  which  Mitchell  Hutchins or its officers or
directors or the Trust, its officers or trustees, or any such controlling person
may incur under the 1933 Act,  under common law or  otherwise  arising out of or
based  upon any  alleged  untrue  statement  of a  material  fact  contained  in
information  furnished  in writing by  PaineWebber  to Mitchell  Hutchins or the
Trust for use in the  Registration  Statement;  arising out of or based upon any
alleged  omission to state a material fact in connection  with such  information
required to be stated in the  Registration  Statement  or necessary to make such
information not misleading;  or arising out of any agreement between PaineWebber
and a correspondent firm or any other retail dealer; or arising out of any sales
or advertising  material used by PaineWebber in connection with its duties under
this Agreement.


                                      -5-
<PAGE>

            10. DURATION AND TERMINATION.

            (a) This  Agreement  shall  become  effective  upon the date written
above,  provided that, with respect to any Series,  this Contract shall not take
effect  unless such action has first been  approved by vote of a majority of the
Board  and by vote of a  majority  of those  trustees  of the  Trust who are not
interested  persons  of the Trust and who have no direct or  indirect  financial
interest in the operation of the Plan or in any agreements  related thereto (all
such  trustees  collectively  being  referred  to  herein  as  the  "Independent
Trustees"), cast in person at a meeting called for the purpose of voting on such
action.

            (b) Unless sooner  terminated  as provided  herein,  this  Agreement
shall  continue in effect for one year from the above written date.  Thereafter,
if not terminated,  this Agreement shall continue  automatically  for successive
periods of twelve months each,  provided that such  continuance is  specifically
approved  at  least  annually  (i) by a vote of a  majority  of the  Independent
Trustees,  cast in person at a meeting  called for the purpose of voting on such
approval, and (ii) by the Board or with respect to any given Series by vote of a
majority  of the  outstanding  voting  securities  of the Class A Shares of such
Series.

            (c) Notwithstanding  the foregoing,  with respect to any Series this
Agreement may be terminated at any time, without the payment of any penalty,  by
either party,  upon the giving of 30 days' written notice.  Such notice shall be
deemed to have been  given on the date it is  received  in  writing by the other
party or any officer thereof. This Agreement may also be terminated at any time,
without the payment of any penalty,  by vote of the Board, by vote of a majority
of the Independent  Trustees or by vote of a majority of the outstanding  voting
securities  of the Class A Shares of such Series on 30 days'  written  notice to
Mitchell Hutchins and PaineWebber.

            (d)  Termination  of this Agreement with respect to any given Series
shall  in no  way  affect  the  continued  validity  of  this  Agreement  or the
performance  thereunder  with respect to any other Series.  This  Agreement will

                                      -6-
<PAGE>

automatically  terminate in the event of its assignment or in the event that the
Distribution Contract is terminated.

            (e) Notwithstanding  the foregoing,  Mitchell Hutchins may terminate
this Agreement without penalty, such termination to be effective upon the giving
of written  notice to PaineWebber in the event that the Plan is terminated or is
amended to reduce the compensation payable to Mitchell Hutchins thereunder or in
the event that the Registration  Statement is amended so as to reduce the amount
of compensation  payable to Mitchell  Hutchins under the Distribution  Contract,
provided that Mitchell  Hutchins  gives notice of  termination  pursuant to this
provision  within  90 days of  such  amendment  or  termination  of the  Plan or
amendment of the Registration Statement.

         11. AMENDMENT OF THIS AGREEMENT.  No provision of this Agreement may be
amended,  changed,  waived,  discharged  or  terminated  orally,  but only by an
instrument  in writing  signed by the party  against  which  enforcement  of the
change, waiver, discharge or termination is sought.

         12. USE OF PAINEWEBBER NAME.  PaineWebber  hereby  authorizes  Mitchell
Hutchins  to  use  the  name  "PaineWebber  Incorporated"  or any  name  derived
therefrom in any sales or advertising materials prepared and/or used by Mitchell
Hutchins in connection with its duties as distributor of the Class A Shares, but
only for so long as this Agreement or any extension, renewal or amendment hereof
remains in effect,  including any similar agreement with any organization  which
shall have succeeded to the business of PaineWebber.

         13. GOVERNING LAW. This Agreement shall be construed in accordance with
the laws of the State of  Delaware  and the 1940  Act.  To the  extent  that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the 1940 Act, the latter shall control.

         14.  MISCELLANEOUS.  The  captions in this  Agreement  are included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this Agreement  shall be held or made invalid by a court  decision,
statute,  rule or  otherwise,  the  remainder  of this  Agreement  shall  not be
affected  thereby.  This Agreement  shall be binding upon and shall inure to the
benefit of the parties hereto and their respective  successors.  As used in this
Agreement,   the  terms  "majority  of  the  outstanding   voting   securities,"
"interested  person" and "assignment"  shall have the same meaning as such terms
have in the 1940 Act.



                                      -7-
<PAGE>


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



                                                  MITCHELL HUTCHINS ASSET
                                                  MANAGEMENT INC.



    Attest:                                       By:
           ---------------------------               ---------------------------



                                                  PAINEWEBBER INCORPORATED


    Attest:                                       By:
           ---------------------------               ---------------------------






                                      -8-




                                                                  Exhibit (5)(f)

                           EXCLUSIVE DEALER AGREEMENT

              CLASS B SHARES OF MITCHELL HUTCHINS SECURITIES TRUST



         AGREEMENT made as of __________,  2000, between Mitchell Hutchins Asset
Management Inc. ("Mitchell Hutchins"),  a Delaware corporation,  and PaineWebber
Incorporated ("PaineWebber"), a Delaware corporation.

         WHEREAS  Mitchell  Hutchins  Securities  Trust  ("Trust") is a Delaware
business trust registered  under the Investment  Company Act of 1940, as amended
("1940 Act"), as an open-end management investment company; and

         WHEREAS  the  Trust  currently  has two  distinct  series  of shares of
beneficial interest ("Series"), which correspond to distinct portfolios and have
been designated as PaineWebber  Enhanced S&P 500 Fund and  PaineWebber  Enhanced
Nasdaq-100 Fund; and

         WHEREAS the Trust's  board of trustees  ("Board")  has  established  an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class B shares  ("Class B  Shares")  and has  adopted a Plan of  Distribution
pursuant to Rule 12b-1 under the 1940 Act  ("Plan")  with respect to the Class B
Shares of the above-referenced  Series and of such other Series as may hereafter
be designated by the Board and have Class B Shares established; and

         WHEREAS Mitchell Hutchins has entered into a Distribution Contract with
the Trust  ("Distribution  Contract") pursuant to which Mitchell Hutchins serves
as principal distributor in connection with the offering and sale of the Class B
Shares of each such Series; and

         WHEREAS  Mitchell  Hutchins  desires  to  retain   PaineWebber  as  its
exclusive  agent in connection  with the offering and sale of the Class B Shares
of each  Series and to  delegate to  PaineWebber  performance  of certain of the
services which Mitchell  Hutchins  provides to the Trust under the  Distribution
Contract; and

         WHEREAS  PaineWebber is willing to act as Mitchell Hutchins'  exclusive
agent in  connection  with the  offering  and sale of such Class B Shares and to
perform such services on the terms and conditions hereinafter set forth;

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants contained herein, Mitchell Hutchins and PaineWebber agree as follows:

         1. APPOINTMENT.  Mitchell  Hutchins hereby appoints  PaineWebber as its
exclusive agent to sell and to arrange for the sale of the Class B Shares on the
terms and for the period set forth in this  Agreement.  Mitchell  Hutchins  also
appoints  PaineWebber as its agent for the performance of certain other services
set forth  herein  which  Mitchell  Hutchins  provides  to the  Trust  under the
Distribution  Contract.  PaineWebber hereby accepts such appointments and agrees
to act hereunder.  It is understood,  however,  that these  appointments  do not
preclude sales of Class B Shares directly  through the Trust's transfer agent in


<PAGE>

the manner set forth in the Registration  Statement.  As used in this Agreement,
the  term   "Registration   Statement"   shall  mean  the  currently   effective
Registration  Statement of the Trust,  and any  supplements  thereto,  under the
Securities Act of 1933, as amended ("1933 Act"), and the 1940 Act.

         2. SERVICES, DUTIES AND REPRESENTATIONS OF PAINEWEBBER.

            (a) PaineWebber  agrees to sell the Class B Shares on a best efforts
basis from time to time during the term of this  Agreement as agent for Mitchell
Hutchins and upon the terms  described in this  Agreement  and the  Registration
Statement.

            (b) Upon the  later of the  date of this  Agreement  or the  initial
offering  of Class B Shares by a Series  to the  public,  PaineWebber  will hold
itself  available to receive  orders,  satisfactory  to PaineWebber and Mitchell
Hutchins,  for the  purchase  of Class B Shares and will  accept  such orders on
behalf of  Mitchell  Hutchins  and the Trust as of the time of  receipt  of such
orders and will  promptly  transmit  such orders as are  accepted to the Trust's
transfer agent. Purchase orders shall be deemed effective at the time and in the
manner set forth in the Registration Statement.

            (c) PaineWebber in its discretion may sell Class B Shares to (i) its
correspondent  firms and customers of such firms and (ii) such other  registered
and  qualified  retail  dealers as it may  select,  subject to the  approval  of
Mitchell Hutchins. In making agreements with such dealers, PaineWebber shall act
only as principal and not as agent for Mitchell Hutchins or the Trust.

            (d) The offering price of the Class B Shares of each Series shall be
the net asset value per Share as next determined by the Trust following  receipt
of an order at PaineWebber's  principal office. Mitchell Hutchins shall promptly
furnish or arrange for the  furnishing  to  PaineWebber  of a statement  of each
computation of net asset value.

            (e) PaineWebber shall not be obligated to sell any certain number of
Class B Shares.

            (f) To  facilitate  redemption  of  Class B Shares  by  shareholders
directly or through  dealers,  PaineWebber  is  authorized  but not  required on
behalf of Mitchell Hutchins and the Trust to repurchase Class B Shares presented
to it by shareholders,  its  correspondent  firms and other dealers at the price
determined in accordance  with, and in the manner set forth in, the Registration
Statement. Such price shall reflect the subtraction of the applicable contingent
deferred sales charge, if any, computed in accordance with and in the manner set
forth in the Registration Statement.

            (g) PaineWebber shall provide ongoing  shareholder  services,  which
include  responding  to  shareholder  inquiries,   providing  shareholders  with
information  on their  investments  in the Class B Shares and any other services
now or hereafter deemed to be appropriate  subjects for the payments of "service
fees"  under  Rule 2830 of the  Conduct  Rules of the  National  Association  of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").


                                      -2-
<PAGE>

            (h) PaineWebber  represents and warrants that: (i) it is a member in
good  standing of the NASD and agrees to abide by the Conduct Rules of the NASD;
(ii) it is  registered  as a  broker-dealer  with the  Securities  and  Exchange
Commission;  (iii) it will maintain any filings and licenses required by federal
and state laws to conduct the business  contemplated  under this Agreement;  and
(iv) it will comply with all federal and state laws and  regulations  applicable
to the offer and sale of the Class B Shares.

            (i)  PaineWebber  shall not incur any debts or obligations on behalf
of  Mitchell  Hutchins  or the Trust.  PaineWebber  shall bear all costs that it
incurs  in  selling  the  Class B Shares  and in  complying  with the  terms and
conditions of this Agreement as more specifically set forth in paragraph 8.

            (j)  PaineWebber  shall not permit any employee or agent to offer or
sell Class B Shares to the public  unless  such  person is duly  licensed  under
applicable federal and state laws and regulations.

            (k)  PaineWebber  shall not (i) furnish any  information or make any
representations  concerning the Class B Shares other than those contained in the
Registration  Statement  or in sales  literature  or  advertising  that has been
prepared or approved  by  Mitchell  Hutchins as provided in  paragraph 6 or (ii)
offer or sell the Class B Shares in  jurisdictions  in which  they have not been
approved for offer and sale.

         3.  SERVICES  NOT  EXCLUSIVE.  The services  furnished  by  PaineWebber
hereunder  are not to be  deemed  exclusive  and  PaineWebber  shall  be free to
furnish similar  services to others so long as its services under this Agreement
are not impaired thereby.  Nothing in this Agreement shall limit or restrict the
right of any  director,  officer or  employee of  PaineWebber  who may also be a
director,  trustee,  officer or employee of Mitchell  Hutchins or the Trust,  to
engage in any other  business or to devote his or her time and attention in part
to the management or other aspects of any other  business,  whether of a similar
or a dissimilar nature.

         4.  COMPENSATION.

            (a) As compensation for its service  activities under this Agreement
with respect to the Class B Shares,  Mitchell  Hutchins shall pay to PaineWebber
service fees with respect to Class B Shares  maintained in shareholder  accounts
serviced by PaineWebber employees, correspondent firms and other dealers in such
amounts as Mitchell Hutchins and PaineWebber may from time to time agree upon.

            (b) As  compensation  for its  activities  under this Agreement with
respect to the distribution of the Class B Shares,  Mitchell  Hutchins shall pay
to PaineWebber  such  commissions for sales of the Class B shares by PaineWebber
employees,  correspondent firms and other dealers and such other compensation as
Mitchell Hutchins and PaineWebber may from time to time agree upon.

            (c) Mitchell Hutchins' obligation to pay compensation to PaineWebber
as  agreed  upon  pursuant to this paragraph 4 is not contingent upon receipt by


                                      -3-
<PAGE>

Mitchell  Hutchins  of any  compensation  from  the  Trust or  Series.  Mitchell
Hutchins  shall advise the Board of any  agreements or revised  agreements as to
compensation  to be paid by  Mitchell  Hutchins  to  PaineWebber  at their first
regular  meeting held after such  agreement  but shall not be required to obtain
prior approval for such agreements from the Board.

            (d)  PaineWebber  may reallow  all or any part of the service  fees,
commissions or other  compensation  which it is paid under this Agreement to its
correspondent  firms or other dealers,  in such amounts as PaineWebber  may from
time to time determine.

         5. DUTIES OF MITCHELL HUTCHINS.

            (a) It is understood  that the Trust  reserves the right at any time
to  withdraw  all  offerings  of Class B Shares of any or all  Series by written
notice to Mitchell Hutchins.

            (b) Mitchell  Hutchins shall keep PaineWebber  fully informed of the
Trust's  affairs  and  shall  make  available  to  PaineWebber   copies  of  all
information,  financial  statements  and  other  papers  which  PaineWebber  may
reasonably  request  for use in  connection  with  the  distribution  of Class B
Shares,  including,  without  limitation,  certified  copies  of  any  financial
statements  prepared for the Trust by its independent public accountant and such
reasonable  number  of  copies  of the most  current  prospectus,  statement  of
additional  information,  and  annual  and  interim  reports  of any  Series  as
PaineWebber  may request,  and Mitchell  Hutchins shall  cooperate  fully in the
efforts of  PaineWebber  to sell and  arrange for the sale of the Class B Shares
and in the performance of PaineWebber under this Agreement.

            (c) Mitchell  Hutchins  shall comply with all state and federal laws
and regulations applicable to a distributor of the Class B Shares.

         6.  ADVERTISING.  Mitchell Hutchins agrees to make available such sales
and advertising materials relating to the Class B Shares as Mitchell Hutchins in
its discretion  determines  appropriate.  PaineWebber agrees to submit all sales
and  advertising  materials  developed  by it  relating to the Class B Shares to
Mitchell Hutchins for approval.  PaineWebber agrees not to publish or distribute
such materials to the public  without first  receiving such approval in writing.
Mitchell Hutchins shall assist PaineWebber in obtaining any regulatory approvals
of such materials that may be required of or desired by PaineWebber.

         7.  RECORDS.  PaineWebber  agrees to maintain  all records  required by
applicable state and federal laws and regulations relating to the offer and sale
of the Class B Shares.  Mitchell  Hutchins  and its  representatives  shall have
access to such records during normal business hours for review or copying.

         8.  EXPENSES  OF  PAINEWEBBER.  PaineWebber  shall  bear all  costs and
expenses of (i) preparing, printing, and distributing any materials not prepared
by the Trust or Mitchell  Hutchins and other  materials  used by  PaineWebber in
connection with its offering of Class B Shares for sale to the public;  (ii) any
expenses  of  advertising  incurred  by  PaineWebber  in  connection  with  such
offering;  (iii) the expenses of registration or qualification of PaineWebber as
a dealer or broker under  federal or state laws and the  expenses of  continuing
such  registration  or   qualification;   and  (iv)  all  compensation  paid  to

                                      040
<PAGE>

PaineWebber's  Investment  Executives or other  employees and others for selling
Class B Shares, and all expenses of PaineWebber,  its Investment  Executives and
employees  and others who engage in or support the sale of Class B Shares as may
be incurred in connection with their sales efforts.  PaineWebber shall bear such
additional  costs and expenses as it and Mitchell  Hutchins may agree upon, such
agreement to be evidenced in a writing signed by both parties. Mitchell Hutchins
shall advise the Board of any such agreement as to additional costs and expenses
borne by  PaineWebber  at their first regular  meeting held after such agreement
but shall not be required to obtain prior approval for such  agreements from the
Board.

         9. INDEMNIFICATION.

            (a)  Mitchell  Hutchins  agrees  to  indemnify,   defend,  and  hold
PaineWebber, its officers and directors, and any person who controls PaineWebber
within the  meaning of Section 15 of the 1933 Act,  free and  harmless  from and
against any and all claims,  demands,  liabilities,  and expenses (including the
cost of investigating or defending such claims,  demands, or liabilities and any
counsel fees incurred in connection therewith) which PaineWebber,  its officers,
directors,  or any such  controlling  person may incur under the 1933 Act, under
common  law or  otherwise,  arising  out of or  based  upon any  alleged  untrue
statement of a material fact contained in the  Registration  Statement;  arising
out of or based upon any alleged  omission to state a material  fact required to
be  stated  in the  Registration  Statement  thereof  or  necessary  to make the
statements in the Registration Statement thereof not misleading;  or arising out
of any  sales  or  advertising  materials  with  respect  to the  Class B Shares
provided by Mitchell Hutchins to PaineWebber.  However, this indemnity agreement
shall not apply to any claims, demands,  liabilities, or expenses that arise out
of or are based upon any such untrue  statement  or  omission or alleged  untrue
statement or omission made in reliance upon and in conformity  with  information
furnished in writing by PaineWebber to Mitchell Hutchins or the Trust for use in
the Registration  Statement or in any sales or advertising material; and further
provided, that in no event shall anything contained herein be so construed as to
protect  PaineWebber  against any liability to Mitchell Hutchins or the Trust or
to the  shareholders  of any  Series to which  PaineWebber  would  otherwise  be
subject by reason of willful misfeasance,  bad faith, or gross negligence in the
performance  of its  duties,  or by  reason  of its  reckless  disregard  of its
obligations under this Agreement.

            (b)  PaineWebber  agrees to  indemnify,  defend,  and hold  Mitchell
Hutchins and its officers and directors,  the Trust,  its officers and trustees,
and any person who controls Mitchell Hutchins or the Trust within the meaning of
Section  15 of the 1933 Act,  free and  harmless  from and  against  any and all
claims,  demands,  liabilities and expenses (including the cost of investigating
or defending  against such claims,  demands or liabilities  and any counsel fees
incurred in connection  therewith)  which  Mitchell  Hutchins or its officers or
directors or the Trust, its officers or trustees, or any such controlling person
may incur under the 1933 Act,  under common law or  otherwise  arising out of or
based  upon any  alleged  untrue  statement  of a  material  fact  contained  in
information  furnished  in writing by  PaineWebber  to Mitchell  Hutchins or the
Trust for use in the  Registration  Statement;  arising out of or based upon any
alleged  omission to state a material fact in connection  with such  information
required to be stated in the  Registration  Statement  or necessary to make such

                                      -5-
<PAGE>

information not misleading;  or arising out of any agreement between PaineWebber
and a correspondent firm or any other retail dealer; or arising out of any sales
or advertising  material used by PaineWebber in connection with its duties under
this Agreement.

         10. Duration and Termination.

            (a) This  Agreement  shall  become  effective  upon the date written
above,  provided that, with respect to any Series,  this Contract shall not take
effect  unless such action has first been  approved by vote of a majority of the
Board  and by vote of a  majority  of those  trustees  of the  Trust who are not
interested  persons  of the Trust and who have no direct or  indirect  financial
interest in the operation of the Plan or in any agreements  related thereto (all
such  trustees  collectively  being  referred  to  herein  as  the  "Independent
Trustees"), cast in person at a meeting called for the purpose of voting on such
action.

            (b) Unless sooner  terminated  as provided  herein,  this  Agreement
shall  continue in effect for one year from the above written date.  Thereafter,
if not terminated,  this Agreement shall continue  automatically  for successive
periods of twelve months each,  provided that such  continuance is  specifically
approved  at  least  annually  (i) by a vote of a  majority  of the  Independent
Trustees,  cast in person at a meeting  called for the purpose of voting on such
approval, and (ii) by the Board or with respect to any given Series by vote of a
majority  of the  outstanding  voting  securities  of the Class B Shares of such
Series.

            (c) Notwithstanding  the foregoing,  with respect to any Series this
Agreement may be terminated at any time, without the payment of any penalty,  by
either party,  upon the giving of 30 days' written notice.  Such notice shall be
deemed to have been  given on the date it is  received  in  writing by the other
party or any officer thereof. This Agreement may also be terminated at any time,
without the payment of any penalty,  by vote of the Board, by vote of a majority
of the Independent  Trustees or by vote of a majority of the outstanding  voting
securities  of the Class B Shares of such Series on 30 days'  written  notice to
Mitchell Hutchins and PaineWebber.

            (d)  Termination  of this Agreement with respect to any given Series
shall  in no  way  affect  the  continued  validity  of  this  Agreement  or the
performance  thereunder  with respect to any other Series.  This  Agreement will
automatically  terminate in the event of its assignment or in the event that the
Distribution Contract is terminated.

            (e) Notwithstanding  the foregoing,  Mitchell Hutchins may terminate
this Agreement without penalty, such termination to be effective upon the giving
of written  notice to PaineWebber in the event that the Plan is terminated or is
amended to reduce the compensation payable to Mitchell Hutchins thereunder or in
the event that the Registration  Statement is amended so as to reduce the amount
of compensation  payable to Mitchell  Hutchins under the Distribution  Contract,
provided that Mitchell  Hutchins  gives notice of  termination  pursuant to this
provision  within  90 days of  such  amendment  or  termination  of the  Plan or
amendment of the Registration Statement.


                                      -6-
<PAGE>

         11. AMENDMENT OF THIS AGREEMENT.  No provision of this Agreement may be
amended,  changed,  waived,  discharged  or  terminated  orally,  but only by an
instrument  in writing  signed by the party  against  which  enforcement  of the
change, waiver, discharge or termination is sought.

         12. USE OF PAINEWEBBER NAME.  PaineWebber  hereby  authorizes  Mitchell
Hutchins  to  use  the  name  "PaineWebber  Incorporated"  or any  name  derived
therefrom in any sales or advertising materials prepared and/or used by Mitchell
Hutchins in connection with its duties as distributor of the Class B Shares, but
only for so long as this Agreement or any extension, renewal or amendment hereof
remains in effect,  including any similar agreement with any organization  which
shall have succeeded to the business of PaineWebber.

         13. GOVERNING LAW. This Agreement shall be construed in accordance with
the laws of the State of  Delaware  and the 1940  Act.  To the  extent  that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the 1940 Act, the latter shall control.

         14.  MISCELLANEOUS.  The  captions in this  Agreement  are included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this Agreement  shall be held or made invalid by a court  decision,
statute,  rule or  otherwise,  the  remainder  of this  Agreement  shall  not be
affected  thereby.  This Agreement  shall be binding upon and shall inure to the
benefit of the parties hereto and their respective  successors.  As used in this
Agreement,   the  terms  "majority  of  the  outstanding   voting   securities,"
"interested  person" and "assignment"  shall have the same meaning as such terms
have in the 1940 Act.

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

                                           MITCHELL HUTCHINS ASSET
                                           MANAGEMENT INC.

    Attest:                                By:
           -------------------------          ---------------------------------



                                           PAINEWEBBER INCORPORATED

    Attest:                                By:
           -------------------------          ---------------------------------




                                      -7-


                                                                  Exhibit (5)(g)

                           EXCLUSIVE DEALER AGREEMENT

              CLASS C SHARES OF MITCHELL HUTCHINS SECURITIES TRUST



         AGREEMENT made as of __________,  2000, between Mitchell Hutchins Asset
Management Inc. ("Mitchell Hutchins"),  a Delaware corporation,  and PaineWebber
Incorporated ("PaineWebber"), a Delaware corporation.

         WHEREAS  Mitchell  Hutchins  Securities  Trust  ("Trust") is a Delaware
business trust registered  under the Investment  Company Act of 1940, as amended
("1940 Act"), as an open-end management investment company; and

         WHEREAS  the  Trust  currently  has two  distinct  series  of shares of
beneficial interest ("Series"), which correspond to distinct portfolios and have
been designated as PaineWebber  Enhanced S&P 500 Fund and  PaineWebber  Enhanced
Nasdaq-100 Fund; and

         WHEREAS the Trust's  board of trustees  ("Board")  has  established  an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class C shares  ("Class C  Shares")  and has  adopted a Plan of  Distribution
pursuant to Rule 12b-1 under the 1940 Act  ("Plan")  with respect to the Class C
Shares of the above-referenced  Series and of such other Series as may hereafter
be designated by the Board and have Class C Shares established; and

         WHEREAS Mitchell Hutchins has entered into a Distribution Contract with
the Trust  ("Distribution  Contract") pursuant to which Mitchell Hutchins serves
as principal distributor in connection with the offering and sale of the Class C
Shares of each such Series; and

         WHEREAS  Mitchell  Hutchins  desires  to  retain   PaineWebber  as  its
exclusive  agent in connection  with the offering and sale of the Class C Shares
of each  Series and to  delegate to  PaineWebber  performance  of certain of the
services which Mitchell  Hutchins  provides to the Trust under the  Distribution
Contract; and

         WHEREAS  PaineWebber is willing to act as Mitchell Hutchins'  exclusive
agent in  connection  with the  offering  and sale of such Class C Shares and to
perform such services on the terms and conditions hereinafter set forth;

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants contained herein, Mitchell Hutchins and PaineWebber agree as follows:

         1. APPOINTMENT.  Mitchell  Hutchins hereby appoints  PaineWebber as its
exclusive agent to sell and to arrange for the sale of the Class C Shares on the
terms and for the period set forth in this  Agreement.  Mitchell  Hutchins  also
appoints  PaineWebber as its agent for the performance of certain other services
set forth  herein  which  Mitchell  Hutchins  provides  to the  Trust  under the
Distribution  Contract.  PaineWebber hereby accepts such appointments and agrees
to act hereunder.  It is understood,  however,  that these  appointments  do not
preclude sales of Class C Shares directly  through the Trust's transfer agent in

<PAGE>

the manner set forth in the Registration  Statement.  As used in this Agreement,
the  term   "Registration   Statement"   shall  mean  the  currently   effective
Registration  Statement of the Trust,  and any  supplements  thereto,  under the
Securities Act of 1933, as amended ("1933 Act"), and the 1940 Act.

         2. SERVICES, DUTIES AND REPRESENTATIONS OF PAINEWEBBER.

            (a) PaineWebber  agrees to sell the Class C Shares on a best efforts
basis from time to time during the term of this  Agreement as agent for Mitchell
Hutchins and upon the terms  described in this  Agreement  and the  Registration
Statement.

            (b) Upon the  later of the  date of this  Agreement  or the  initial
offering  of Class C Shares by a Series  to the  public,  PaineWebber  will hold
itself  available to receive  orders,  satisfactory  to PaineWebber and Mitchell
Hutchins,  for the  purchase  of Class C Shares and will  accept  such orders on
behalf of  Mitchell  Hutchins  and the Trust as of the time of  receipt  of such
orders and will  promptly  transmit  such orders as are  accepted to the Trust's
transfer agent. Purchase orders shall be deemed effective at the time and in the
manner set forth in the Registration Statement.

            (c) PaineWebber in its discretion may sell Class C Shares to (i) its
correspondent  firms and customers of such firms and (ii) such other  registered
and  qualified  retail  dealers as it may  select,  subject to the  approval  of
Mitchell Hutchins. In making agreements with such dealers, PaineWebber shall act
only as principal and not as agent for Mitchell Hutchins or the Trust.

            (d) The offering price of the Class C Shares of each Series shall be
the net asset value per Share as next determined by the Trust following  receipt
of an order at PaineWebber's  principal office. Mitchell Hutchins shall promptly
furnish or arrange for the  furnishing  to  PaineWebber  of a statement  of each
computation of net asset value.

            (e) PaineWebber shall not be obligated to sell any certain number of
Class C Shares.

            (f) To  facilitate  redemption  of  Class C Shares  by  shareholders
directly or through  dealers,  PaineWebber  is  authorized  but not  required on
behalf of Mitchell Hutchins and the Trust to repurchase Class C Shares presented
to it by shareholders,  its  correspondent  firms and other dealers at the price
determined in accordance  with, and in the manner set forth in, the Registration
Statement. Such price shall reflect the subtraction of the applicable contingent
deferred sales charge, if any, computed in accordance with and in the manner set
forth in the Registration Statement.

            (g) PaineWebber shall provide ongoing  shareholder  services,  which
include  responding  to  shareholder  inquiries,   providing  shareholders  with
information  on their  investments  in the Class C Shares and any other services
now or hereafter deemed to be appropriate  subjects for the payments of "service
fees"  under  Rule 2830 of the  Conduct  Rules of the  National  Association  of
Securities Dealers, Inc. ("NASD") (collectively, "service activities").

                                      -2-
<PAGE>

            (h) PaineWebber  represents and warrants that: (i) it is a member in
good  standing of the NASD and agrees to abide by the Conduct Rules of the NASD;
(ii) it is  registered  as a  broker-dealer  with the  Securities  and  Exchange
Commission;  (iii) it will maintain any filings and licenses required by federal
and state laws to conduct the business  contemplated  under this Agreement;  and
(iv) it will comply with all federal and state laws and  regulations  applicable
to the offer and sale of the Class C Shares.

            (i)  PaineWebber  shall not incur any debts or obligations on behalf
of  Mitchell  Hutchins  or the Trust.  PaineWebber  shall bear all costs that it
incurs  in  selling  the  Class C Shares  and in  complying  with the  terms and
conditions of this Agreement as more specifically set forth in paragraph 8.

            (j)  PaineWebber  shall not permit any employee or agent to offer or
sell Class C Shares to the public  unless  such  person is duly  licensed  under
applicable federal and state laws and regulations.

            (k)  PaineWebber  shall not (i) furnish any  information or make any
representations  concerning the Class C Shares other than those contained in the
Registration  Statement  or in sales  literature  or  advertising  that has been
prepared or approved  by  Mitchell  Hutchins as provided in  paragraph 6 or (ii)
offer or sell the Class C Shares in  jurisdictions  in which  they have not been
approved for offer and sale.

         3.  Services  Not  Exclusive.  The services  furnished  by  PaineWebber
hereunder  are not to be  deemed  exclusive  and  PaineWebber  shall  be free to
furnish similar  services to others so long as its services under this Agreement
are not impaired thereby.  Nothing in this Agreement shall limit or restrict the
right of any  director,  officer or  employee of  PaineWebber  who may also be a
director,  trustee,  officer or employee of Mitchell  Hutchins or the Trust,  to
engage in any other  business or to devote his or her time and attention in part
to the management or other aspects of any other  business,  whether of a similar
or a dissimilar nature.

         4. COMPENSATION.

            (a) As compensation for its service  activities under this Agreement
with respect to the Class C Shares,  Mitchell  Hutchins shall pay to PaineWebber
service fees with respect to Class C Shares  maintained in shareholder  accounts
serviced by PaineWebber employees, correspondent firms and other dealers in such
amounts as Mitchell Hutchins and PaineWebber may from time to time agree upon.

            (b) As  compensation  for its  activities  under this Agreement with
respect to the  distribution of Class C Shares,  Mitchell  Hutchins shall pay to
PaineWebber  such  commissions  for sales of the  Class C shares by  PaineWebber
employees,  correspondent firms and other dealers and such other compensation as
Mitchell Hutchins and PaineWebber may from time to time agree upon.

            (c) Mitchell Hutchins' obligation to pay compensation to PaineWebber
as agreed upon pursuant to this  paragraph 4 is not  contingent  upon receipt by

                                      -3-
<PAGE>

Mitchell  Hutchins  of any  compensation  from  the  Trust or  Series.  Mitchell
Hutchins  shall advise the Board of any  agreements or revised  agreements as to
compensation  to be paid by  Mitchell  Hutchins  to  PaineWebber  at their first
regular  meeting held after such  agreement  but shall not be required to obtain
prior approval for such agreements from the Board.

            (d)  PaineWebber  may reallow  all or any part of the service  fees,
commissions or other  compensation  which it is paid under this Agreement to its
correspondent  firms or other dealers,  in such amounts as PaineWebber  may from
time to time determine.

         5.  DUTIES OF MITCHELL HUTCHINS.

            (a) It is understood  that the Trust  reserves the right at any time
to  withdraw  all  offerings  of Class C Shares of any or all  Series by written
notice to Mitchell Hutchins.

            (b) Mitchell  Hutchins shall keep PaineWebber  fully informed of the
Trust's  affairs  and  shall  make  available  to  PaineWebber   copies  of  all
information,  financial  statements  and  other  papers  which  PaineWebber  may
reasonably  request  for use in  connection  with  the  distribution  of Class C
Shares,  including,  without  limitation,  certified  copies  of  any  financial
statements  prepared for the Trust by its independent public accountant and such
reasonable  number  of  copies  of the most  current  prospectus,  statement  of
additional  information,  and  annual  and  interim  reports  of any  Series  as
PaineWebber  may request,  and Mitchell  Hutchins shall  cooperate  fully in the
efforts of  PaineWebber  to sell and  arrange for the sale of the Class C Shares
and in the performance of PaineWebber under this Agreement.

            (c) Mitchell  Hutchins  shall comply with all state and federal laws
and regulations applicable to a distributor of the Class C Shares.

         6.  ADVERTISING.  Mitchell Hutchins agrees to make available such sales
and advertising materials relating to the Class C Shares as Mitchell Hutchins in
its discretion  determines  appropriate.  PaineWebber agrees to submit all sales
and  advertising  materials  developed  by it  relating to the Class C Shares to
Mitchell Hutchins for approval.  PaineWebber agrees not to publish or distribute
such materials to the public  without first  receiving such approval in writing.
Mitchell Hutchins shall assist PaineWebber in obtaining any regulatory approvals
of such materials that may be required of or desired by PaineWebber.

         7.  RECORDS.  PaineWebber  agrees to maintain  all records  required by
applicable state and federal laws and regulations relating to the offer and sale
of the Class C Shares.  Mitchell  Hutchins  and its  representatives  shall have
access to such records during normal business hours for review or copying.

         8.  EXPENSES  OF  PAINEWEBBER.  PaineWebber  shall  bear all  costs and
expenses of (i) preparing, printing, and distributing any materials not prepared
by the Trust or Mitchell  Hutchins and other  materials  used by  PaineWebber in
connection with its offering of Class C Shares for sale to the public;  (ii) any
expenses  of  advertising  incurred  by  PaineWebber  in  connection  with  such
offering;  (iii) the expenses of registration or qualification of PaineWebber as
a dealer or broker under  federal or state laws and the  expenses of  continuing
such  registration  or   qualification;   and  (iv)  all  compensation  paid  to

                                      -4-
<PAGE>

PaineWebber's  Investment  Executives or other  employees and others for selling
Class C Shares, and all expenses of PaineWebber,  its Investment  Executives and
employees  and others who engage in or support the sale of Class C Shares as may
be incurred in connection with their sales efforts.  PaineWebber shall bear such
additional  costs and expenses as it and Mitchell  Hutchins may agree upon, such
agreement to be evidenced in a writing signed by both parties. Mitchell Hutchins
shall advise the Board of any such agreement as to additional costs and expenses
borne by  PaineWebber  at their first regular  meeting held after such agreement
but shall not be required to obtain prior approval for such  agreements from the
Board.

         9. INDEMNIFICATION.

            (a)  Mitchell  Hutchins  agrees  to  indemnify,   defend,  and  hold
PaineWebber, its officers and directors, and any person who controls PaineWebber
within the  meaning of Section 15 of the 1933 Act,  free and  harmless  from and
against any and all claims,  demands,  liabilities,  and expenses (including the
cost of investigating or defending such claims,  demands, or liabilities and any
counsel fees incurred in connection therewith) which PaineWebber,  its officers,
directors,  or any such  controlling  person may incur under the 1933 Act, under
common  law or  otherwise,  arising  out of or  based  upon any  alleged  untrue
statement of a material fact contained in the  Registration  Statement;  arising
out of or based upon any alleged  omission to state a material  fact required to
be  stated  in the  Registration  Statement  thereof  or  necessary  to make the
statements in the Registration Statement thereof not misleading;  or arising out
of any  sales  or  advertising  materials  with  respect  to the  Class C Shares
provided by Mitchell Hutchins to PaineWebber.  However, this indemnity agreement
shall not apply to any claims, demands,  liabilities, or expenses that arise out
of or are based upon any such untrue  statement  or  omission or alleged  untrue
statement or omission made in reliance upon and in conformity  with  information
furnished in writing by PaineWebber to Mitchell Hutchins or the Trust for use in
the Registration  Statement or in any sales or advertising material; and further
provided, that in no event shall anything contained herein be so construed as to
protect  PaineWebber  against any liability to Mitchell Hutchins or the Trust or
to the  shareholders  of any  Series to which  PaineWebber  would  otherwise  be
subject by reason of willful misfeasance,  bad faith, or gross negligence in the
performance  of its  duties,  or by  reason  of its  reckless  disregard  of its
obligations under this Agreement.

            (b)  PaineWebber  agrees to  indemnify,  defend,  and hold  Mitchell
Hutchins and its officers and directors,  the Trust,  its officers and trustees,
and any person who controls Mitchell Hutchins or the Trust within the meaning of
Section  15 of the 1933 Act,  free and  harmless  from and  against  any and all
claims,  demands,  liabilities and expenses (including the cost of investigating
or defending  against such claims,  demands or liabilities  and any counsel fees
incurred in connection  therewith)  which  Mitchell  Hutchins or its officers or
directors or the Trust, its officers or trustees, or any such controlling person
may incur under the 1933 Act,  under common law or  otherwise  arising out of or
based  upon any  alleged  untrue  statement  of a  material  fact  contained  in
information  furnished  in writing by  PaineWebber  to Mitchell  Hutchins or the
Trust for use in the  Registration  Statement;  arising out of or based upon any
alleged  omission to state a material fact in connection  with such  information

                                      -5-
<PAGE>

required to be stated in the  Registration  Statement  or necessary to make such
information not misleading;  or arising out of any agreement between PaineWebber
and a correspondent firm or any other retail dealer; or arising out of any sales
or advertising  material used by PaineWebber in connection with its duties under
this Agreement.

         10. DURATION AND TERMINATION.

            (a) This  Agreement  shall  become  effective  upon the date written
above,  provided that, with respect to any Series,  this Contract shall not take
effect  unless such action has first been  approved by vote of a majority of the
Board  and by vote of a  majority  of those  trustees  of the  Trust who are not
interested  persons  of the Trust and who have no direct or  indirect  financial
interest in the operation of the Plan or in any agreements  related thereto (all
such  trustees  collectively  being  referred  to  herein  as  the  "Independent
Trustees")  cast in person at a meeting called for the purpose of voting on such
action.

            (b) Unless sooner  terminated  as provided  herein,  this  Agreement
shall  continue in effect for one year from the above written date.  Thereafter,
if not terminated,  this Agreement shall continue  automatically  for successive
periods of twelve months each,  provided that such  continuance is  specifically
approved  at  least  annually  (i) by a vote of a  majority  of the  Independent
Trustees,  cast in person at a meeting  called for the purpose of voting on such
approval, and (ii) by the Board or with respect to any given Series by vote of a
majority  of the  outstanding  voting  securities  of the Class C Shares of such
Series.

            (c) Notwithstanding  the foregoing,  with respect to any Series this
Agreement may be terminated at any time, without the payment of any penalty,  by
either party,  upon the giving of 30 days' written notice.  Such notice shall be
deemed to have been  given on the date it is  received  in  writing by the other
party or any officer thereof. This Agreement may also be terminated at any time,
without the payment of any penalty,  by vote of the Board, by vote of a majority
of the Independent  Trustees or by vote of a majority of the outstanding  voting
securities  of the Class C Shares of such Series on 30 days'  written  notice to
Mitchell Hutchins and PaineWebber.

            (d)  Termination  of this Agreement with respect to any given Series
shall  in no  way  affect  the  continued  validity  of  this  Agreement  or the
performance  thereunder  with respect to any other Series.  This  Agreement will
automatically  terminate in the event of its assignment or in the event that the
Distribution Contract is terminated.

            (e) Notwithstanding  the foregoing,  Mitchell Hutchins may terminate
this Agreement without penalty, such termination to be effective upon the giving
of written  notice to PaineWebber in the event that the Plan is terminated or is
amended to reduce the compensation payable to Mitchell Hutchins thereunder or in
the event that the Registration  Statement is amended so as to reduce the amount
of compensation  payable to Mitchell  Hutchins under the Distribution  Contract,
provided that Mitchell  Hutchins  gives notice of  termination  pursuant to this
provision  within  90 days of  such  amendment  or  termination  of the  Plan or
amendment of the Registration Statement.


                                      -6-
<PAGE>

         11. AMENDMENT OF THIS AGREEMENT.  No provision of this Agreement may be
amended,  changed,  waived,  discharged  or  terminated  orally,  but only by an
instrument  in writing  signed by the party  against  which  enforcement  of the
change, waiver, discharge or termination is sought.

         12. USE OF PAINEWEBBER NAME.  PaineWebber  hereby  authorizes  Mitchell
Hutchins  to  use  the  name  "PaineWebber  Incorporated"  or any  name  derived
therefrom in any sales or advertising materials prepared and/or used by Mitchell
Hutchins in connection with its duties as distributor of the Class C Shares, but
only for so long as this Agreement or any extension, renewal or amendment hereof
remains in effect,  including any similar agreement with any organization  which
shall have succeeded to the business of PaineWebber.

         13. GOVERNING LAW. This Agreement shall be construed in accordance with
the laws of the State of  Delaware  and the 1940  Act.  To the  extent  that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the 1940 Act, the latter shall control.

         14.  MISCELLANEOUS.  The  captions in this  Agreement  are included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this Agreement  shall be held or made invalid by a court  decision,
statute,  rule or  otherwise,  the  remainder  of this  Agreement  shall  not be
affected  thereby.  This Agreement  shall be binding upon and shall inure to the
benefit of the parties hereto and their respective  successors.  As used in this
Agreement,   the  terms  "majority  of  the  outstanding   voting   securities,"
"interested  person" and "assignment"  shall have the same meaning as such terms
have in the 1940 Act.



                                      -7-
<PAGE>


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

                                            MITCHELL HUTCHINS ASSET
                                            MANAGEMENT INC.

    Attest:                                 By:
           ---------------------------         -------------------------------



                                            PAINEWEBBER INCORPORATED

    Attest:                                 By:
           ---------------------------         -------------------------------









                                      -8-



                                                                  Exhibit (5)(h)

                           EXCLUSIVE DEALER AGREEMENT

              CLASS Y SHARES OF MITCHELL HUTCHINS SECURITIES TRUST

         AGREEMENT made as of __________,  2000 between Mitchell  Hutchins Asset
Management Inc. ("Mitchell Hutchins"),  a Delaware corporation,  and PaineWebber
Incorporated ("PaineWebber"), a Delaware corporation.

         WHEREAS  Mitchell  Hutchins  Securities  Trust  ("Trust") is a Delaware
business trust registered  under the Investment  Company Act of 1940, as amended
("1940 Act"), as an open-end management investment company; and

         WHEREAS  the  Trust  currently  has two  distinct  series  of shares of
beneficial interest ("Series"), which correspond to distinct portfolios and have
been designated as PaineWebber  Enhanced S&P 500 Fund and  PaineWebber  Enhanced
Nasdaq-100 Fund; and

         WHEREAS the Trust's  board of trustees  ("Board")  has  established  an
unlimited number of shares of beneficial interest of the above-referenced Series
as Class Y shares ("Class Y Shares"); and

         WHEREAS Mitchell Hutchins has entered into a Distribution Contract with
the Trust  ("Distribution  Contract") pursuant to which Mitchell Hutchins serves
as principal distributor in connection with the offering and sale of the Class Y
Shares of the above-referenced  Series and of such other Series as may hereafter
be designated by the Board and have Class Y Shares established; and

         WHEREAS  Mitchell  Hutchins  desires  to  retain   PaineWebber  as  its
exclusive  agent in connection  with the offering and sale of the Class Y Shares
of each such Series and to delegate to PaineWebber performance of certain of the
services which Mitchell  Hutchins  provides to the Trust under the  Distribution
Contract; and

         WHEREAS  PaineWebber is willing to act as Mitchell Hutchins'  exclusive
agent in  connection  with the  offering  and sale of such Class Y Shares and to
perform such services on the terms and conditions hereinafter set forth;

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants contained herein, Mitchell Hutchins and PaineWebber agree as follows:

         1. APPOINTMENT.  Mitchell  Hutchins hereby appoints  PaineWebber as its
exclusive agent to sell and to arrange for the sale of the Class Y Shares on the
terms and for the  period set forth in this  Contract.  Mitchell  Hutchins  also
appoints  PaineWebber as its agent for the performance of certain other services
set forth  herein  which  Mitchell  Hutchins  provides  to the  Trust  under the
Distribution  Contract.  PaineWebber hereby accepts such appointments and agrees
to act hereunder.  It is understood,  however,  that these  appointments  do not
preclude sales of Class Y Shares directly  through the Trust's transfer agent in



<PAGE>

the manner set forth in the  Registration  Statement.  As used in this Contract,
the  term   "Registration   Statement"   shall  mean  the  currently   effective
Registration  Statement of the Trust,  and any  supplements  thereto,  under the
Securities Act of 1933, as amended ("1933 Act"), and the 1940 Act.

         2. SERVICES, DUTIES AND REPRESENTATIONS OF PAINEWEBBER.

            (a)PaineWebber  agrees to sell the Class Y Shares on a best  efforts
basis from time to time during the term of this  Agreement as agent for Mitchell
Hutchins  and upon the terms  described in this  Contract  and the  Registration
Statement.

            (b) Upon  the  later of the  date of this  Contract  or the  initial
offering of Class Y Shares by a Series,  PaineWebber  will hold itself available
to receive orders,  satisfactory to PaineWebber and Mitchell  Hutchins,  for the
purchase  of Class Y Shares and will  accept  such  orders on behalf of Mitchell
Hutchins  and the  Trust  as of the  time of  receipt  of such  orders  and will
promptly  transmit  such orders as are accepted to the Trust's  transfer  agent.
Purchase  orders  shall be deemed  effective  at the time and in the  manner set
forth in the Registration Statement.

            (c) PaineWebber in its discretion may sell Class Y Shares to (i) its
correspondent  firms and customers of such firms and (ii) such other  registered
and  qualified  retail  dealers as it may  select,  subject to the  approval  of
Mitchell Hutchins. In making agreements with such dealers, PaineWebber shall act
only as principal and not as agent for Mitchell Hutchins or the Trust.

            (d) The offering price of the Class Y Shares of each Series shall be
the net asset value per Share as next determined by the Trust following  receipt
of an order at PaineWebber's  principal office. Mitchell Hutchins shall promptly
furnish or arrange for the  furnishing  to  PaineWebber  of a statement  of each
computation of net asset value.

            (e) PaineWebber shall not be obligated to sell any certain number of
Class Y Shares.

            (f) To  facilitate  redemption  of  Class Y Shares  by  shareholders
directly or through  dealers,  PaineWebber  is  authorized  but not  required on
behalf of Mitchell Hutchins and the Trust to repurchase Class Y Shares presented
to it by shareholders,  its  correspondent  firms and other dealers at the price
determined in accordance  with, and in the manner set forth in, the Registration
Statement.

            (g) PaineWebber  represents and warrants that: (i) it is a member in
good standing of the National Association of Securities Dealers, Inc. and agrees
to abide by the Conduct  Rules of such  Association;  (ii) it is registered as a
broker-dealer  with  the  Securities  and  Exchange  Commission;  (iii)  it will
maintain any filings and licenses  required by federal and state laws to conduct
the business contemplated under this Agreement; and (iv) it will comply with all
federal and state laws and  regulations  applicable to the offer and sale of the
Class Y Shares.


                                      -2-
<PAGE>

            (h)  PaineWebber  shall not incur any debts or obligations on behalf
of  Mitchell  Hutchins  or the Trust.  PaineWebber  shall bear all costs that it
incurs  in  selling  the  Class Y Shares  and in  complying  with the  terms and
conditions of this Contract as more specifically set forth in paragraph 8.

            (i)  PaineWebber  shall not permit any employee or agent to offer or
sell Class Y Shares unless such person is duly licensed under applicable federal
and state laws and regulations.

            (j)  PaineWebber  shall not (i) furnish any  information or make any
representations  concerning the Class Y Shares other than those contained in the
Registration  Statement  or in sales  literature  or  advertising  that has been
prepared or approved  by  Mitchell  Hutchins as provided in  paragraph 6 or (ii)
offer or sell the Class Y Shares in  jurisdictions  in which  they have not been
approved for offer and sale.

         3.  SERVICES  NOT  EXCLUSIVE.  The services  furnished  by  PaineWebber
hereunder  are not to be  deemed  exclusive  and  PaineWebber  shall  be free to
furnish  similar  services to others so long as its services under this Contract
are not impaired  thereby.  Nothing in this Contract shall limit or restrict the
right of any  director,  officer or  employee of  PaineWebber  who may also be a
director,  trustee,  officer or employee of Mitchell  Hutchins or the Trust,  to
engage in any other  business or to devote his or her time and attention in part
to the management or other aspects of any other  business,  whether of a similar
or a dissimilar nature.

         4. COMPENSATION.

            Mitchell  Hutchins shall not be obligated to pay any compensation to
PaineWebber  hereunder nor to reimburse any of PaineWebber's  expenses  incurred
hereunder.

         5. DUTIES OF MITCHELL HUTCHINS.

            (a) It is understood  that the Trust  reserves the right at any time
to  withdraw  all  offerings  of Class Y Shares of any or all  Series by written
notice to Mitchell Hutchins.

            (b) Mitchell  Hutchins shall keep PaineWebber  fully informed of the
Trust's  affairs  and  shall  make  available  to  PaineWebber   copies  of  all
information,  financial  statements  and  other  papers  which  PaineWebber  may
reasonably  request  for use in  connection  with  the  distribution  of Class Y
Shares,  including,  without  limitation,  certified  copies  of  any  financial
statements  prepared for the Trust by its independent public accountant and such
reasonable  number  of  copies  of the most  current  prospectus,  statement  of
additional  information,  and  annual  and  interim  reports  of any  Series  as
PaineWebber  may request,  and Mitchell  Hutchins shall  cooperate  fully in the
efforts of  PaineWebber  to sell and  arrange for the sale of the Class Y Shares
and in the performance of PaineWebber under this Contract.


                                      -3-
<PAGE>

            (c) Mitchell  Hutchins  shall comply with all state and federal laws
and regulations applicable to a distributor of the Class Y Shares.

         6.  ADVERTISING.  Mitchell Hutchins agrees to make available such sales
and advertising materials relating to the Class Y Shares as Mitchell Hutchins in
its discretion  determines  appropriate.  PaineWebber agrees to submit all sales
and  advertising  materials  developed  by it  relating to the Class Y Shares to
Mitchell Hutchins for approval.  PaineWebber agrees not to publish or distribute
such  materials  without  first  receiving  such  approval in writing.  Mitchell
Hutchins shall assist PaineWebber in obtaining any regulatory  approvals of such
materials that may be required of or desired by PaineWebber.

         7.  RECORDS.  PaineWebber  agrees to maintain  all records  required by
applicable state and federal laws and regulations relating to the offer and sale
of the Class Y Shares.  Mitchell  Hutchins  and its  representatives  shall have
access to such records during normal business hours for review or copying.

         8.  EXPENSES  OF  PAINEWEBBER.  PaineWebber  shall  bear all  costs and
expenses of (i) preparing, printing, and distributing any materials not prepared
by the Trust or Mitchell  Hutchins and other  materials  used by  PaineWebber in
connection with its offering of Class Y Shares for sale to the public;  (ii) any
expenses  of  advertising  incurred  by  PaineWebber  in  connection  with  such
offering;  (iii) the expenses of registration or qualification of PaineWebber as
a dealer or broker under  federal or state laws and the  expenses of  continuing
such  registration  or   qualification;   and  (iv)  all  compensation  paid  to
PaineWebber's  investment  executives or other  employees and others for selling
Class Y Shares, and all expenses of PaineWebber,  its investment  executives and
employees  and others who engage in or support the sale of Class Y Shares as may
be incurred in connection with their sales efforts.  PaineWebber shall bear such
additional  costs and expenses as it and Mitchell  Hutchins may agree upon, such
agreement to be evidenced in a writing signed by both parties. Mitchell Hutchins
shall advise the Board of any such agreement as to additional costs and expenses
borne by  PaineWebber  at their first regular  meeting held after such agreement
but shall not be required to obtain prior approval for such  agreements from the
Board.

         9. INDEMNIFICATION.

         (a)  Mitchell   Hutchins   agrees  to  indemnify,   defend,   and  hold
PaineWebber, its officers and directors, and any person who controls PaineWebber
within the  meaning of Section 15 of the 1933 Act,  free and  harmless  from and
against any and all claims,  demands,  liabilities,  and expenses (including the
cost of investigating or defending such claims,  demands, or liabilities and any
counsel fees incurred in connection therewith) which PaineWebber,  its officers,
directors,  or any such  controlling  person may incur under the 1933 Act, under
common  law or  otherwise,  arising  out of or  based  upon any  alleged  untrue
statement of a material fact contained in the  Registration  Statement;  arising
out of or based upon any alleged  omission to state a material  fact required to
be  stated  in the  Registration  Statement  thereof  or  necessary  to make the
statements in the Registration Statement thereof not misleading;  or arising out
of any  sales  or  advertising  materials  with  respect  to the  Class Y Shares
provided by Mitchell Hutchins to PaineWebber.  However, this indemnity agreement

                                      -4-
<PAGE>

shall not apply to any claims, demands,  liabilities, or expenses that arise out
of or are based upon any such untrue  statement  or  omission or alleged  untrue
statement or omission made in reliance upon and in conformity  with  information
furnished in writing by PaineWebber to Mitchell Hutchins or the Trust for use in
the Registration  Statement or in any sales or advertising material; and further
provided, that in no event shall anything contained herein be so construed as to
protect  PaineWebber  against any liability to Mitchell Hutchins or the Trust or
to the  shareholders  of any  Series to which  PaineWebber  would  otherwise  be
subject by reason of willful misfeasance,  bad faith, or gross negligence in the
performance  of its  duties,  or by  reason  of its  reckless  disregard  of its
obligations under this Contract.

         (b) PaineWebber agrees to indemnify, defend, and hold Mitchell Hutchins
and its officers and directors,  the Trust,  its officers and trustees,  and any
person who controls Mitchell Hutchins or the Trust within the meaning of Section
15 of the 1933 Act,  free and  harmless  from and  against  any and all  claims,
demands,  liabilities  and  expenses  (including  the cost of  investigating  or
defending  against  such  claims,  demands or  liabilities  and any counsel fees
incurred in connection  therewith)  which  Mitchell  Hutchins or its officers or
directors or the Trust, its officers or trustees, or any such controlling person
may incur under the 1933 Act,  under common law or  otherwise  arising out of or
based  upon any  alleged  untrue  statement  of a  material  fact  contained  in
information  furnished  in writing by  PaineWebber  to Mitchell  Hutchins or the
Trust for use in the  Registration  Statement;  arising out of or based upon any
alleged  omission to state a material fact in connection  with such  information
required to be stated in the  Registration  Statement  or necessary to make such
information not misleading;  or arising out of any agreement between PaineWebber
and a correspondent firm or any other retail dealer; or arising out of any sales
or advertising  material used by PaineWebber in connection with its duties under
this Contract.

         10. DURATION AND TERMINATION.

         (a) This Contract  shall become  effective upon the date written above,
provided that,  with respect to any Series,  this Contract shall not take effect
unless  such  action has first been  approved by vote of a majority of the Board
and by vote of a majority of those  trustees of the Trust who are not interested
persons of the Trust and who have no direct or  indirect  financial  interest in
the operation of this Contract or in any  agreements  related  thereto (all such
trustees  collectively being referred to herein as the "Independent  Trustees"),
cast in person at a meeting called for the purpose of voting on such action.

         (b) Unless sooner  terminated as provided  herein,  this Contract shall
continue in effect for one year from the above written date. Thereafter,  if not
terminated, this Contract shall continue automatically for successive periods of
twelve months each,  provided that such continuance is specifically  approved at
least annually (i) by a vote of a majority of the Independent Trustees,  cast in
person at a meeting called for the purpose of voting on such approval,  and (ii)
by the Board with  respect to any given  Series or by vote of a majority  of the
outstanding voting securities of the Class Y Shares of such Series.


                                      -5-
<PAGE>

         (c)  Notwithstanding  the  foregoing,  with  respect to any Series this
Contract may be terminated at any time,  without the payment of any penalty,  by
either party,  upon the giving of 30 days' written notice.  Such notice shall be
deemed to have been  given on the date it is  received  in  writing by the other
party or any officer thereof.  This Contract may also be terminated at any time,
without the payment of any penalty,  by vote of the Board, by vote of a majority
of the Independent  Trustees or by vote of a majority of the outstanding  voting
securities  of the Class Y Shares of such Series on 30 days'  written  notice to
Mitchell Hutchins and PaineWebber.

         (d) Termination of this Contract with respect to any given Series shall
in no way affect the  continued  validity of this  Contract  or the  performance
thereunder  with respect to any other Series.  This Contract will  automatically
terminate in the event of its  assignment or in the event that the  Distribution
contract is terminated.

         11.  AMENDMENT OF THIS AGREEMENT.  No provision of this Contract may be
amended,  changed,  waived,  discharged  or  terminated  orally,  but only by an
instrument  in writing  signed by the party  against  which  enforcement  of the
change, waiver, discharge or termination is sought.

         12. USE OF PAINEWEBBER NAME.  PaineWebber  hereby  authorizes  Mitchell
Hutchins  to  use  the  name  "PaineWebber  Incorporated"  or any  name  derived
therefrom in any sales or advertising materials prepared and/or used by Mitchell
Hutchins in connection with its duties as distributor of the Class Y Shares, but
only for so long as this Contract or any extension,  renewal or amendment hereof
remains in effect,  including any similar agreement with any organization  which
shall have succeeded to the business of PaineWebber.

         13.  GOVERNING LAW. This Contract shall be construed in accordance with
the laws of the State of  Delaware  and the 1940  Act.  To the  extent  that the
applicable laws of the State of Delaware conflict with the applicable provisions
of the 1940 Act, the latter shall control.

         14.  MISCELLANEOUS.  The  captions in this  Contract  are  included for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions  hereof or otherwise  affect  their  construction  or effect.  If any
provision of this  Contract  shall be held or made invalid by a court  decision,
statute, rule or otherwise, the remainder of this Contract shall not be affected
thereby.  This Contract  shall be binding upon and shall inure to the benefit of
the parties hereto and their  respective  successors.  As used in this Contract,
the terms "majority of the outstanding voting  securities,"  "interested person"
and "assignment" shall have the same meaning as such terms have in the 1940 Act.



                                      -6-
<PAGE>




         IN WITNESS WHEREOF,  the parties hereto have caused this Contract to be
executed  by their  officers  designated  as of the day and year  first  written
above.

                                                MITCHELL HUTCHINS ASSET
                                                MANAGEMENT INC.

    Attest:                                     By:
           ----------------------------            -----------------------------



                                                PAINEWEBBER INCORPORATED

    Attest:                                     By:
           ----------------------------            -----------------------------





                                                                 Exhibit No. 7



















                          FORM OF CUSTODIAN CONTRACT
                                   Between
                      MITCHELL HUTCHINS SECURITIES TRUST
                                     and
                     STATE STREET BANK AND TRUST COMPANY








<PAGE>


Mitchell Hutchins Securities Trust




                              TABLE OF CONTENTS
                              -----------------
                                                                            Page

1. Employment of Custodian and Property to be Held by It.......................1

2. Duties of the Custodian with Respect to Property of the Fund Held
by the Custodian in the United States..........................................1

   2.1 Holding Securities......................................................1

   2.2 Delivery of Securities..................................................2

   2.3 Registration of Securities..............................................4

   2.4 Bank Accounts...........................................................4

   2.5 Availability of Federal Funds...........................................4

   2.6 Collection of Income....................................................4

   2.7 Payment of Fund Monies..................................................5

   2.8 Liability for Payment in Advance of Receipt of Securities
   Purchased...................................................................6

   2.9 Appointment of Agents...................................................6

   2.10 Deposit of Fund Assets in U. S. Securities Systems.....................6

   2.11 Fund Assets Held in the Custodian's Direct Paper System................7

   2.12 Segregated Account.....................................................8

   2.13 Ownership Certificates for Tax Purposes................................8

   2.14 Proxies................................................................8

   2.15 Communications Relating to Portfolio Securities........................8

3. Duties of the Custodian with Respect to Property of the Fund Held
Outside of the United States...................................................9

   3.1 Appointment of Foreign Sub-Custodians...................................9

   3.2 Assets to be Held.......................................................9

   3.3 Foreign Securities Systems..............................................9

   3.4 Holding Securities......................................................9

   3.5 Agreements with Foreign Banking Institutions...........................10

   3.6 Access of Independent Accountants of the Fund..........................10

   3.7 Reports by Custodian...................................................10

   3.8 Transactions in Foreign Custody Account................................10

   3.9 Liability of Foreign Sub-Custodians....................................11

   3.10 Liability of Custodian................................................11

   3.11 Reimbursement for Advances............................................11


<PAGE>


Mitchell Hutchins Securities Trust




   3.12 Monitoring Responsibilities...........................................11

   3.13 Branches of U.S. Banks................................................12

   3.14 Tax Law...............................................................12

4. Payments for Sales or Repurchases or Redemptions of Shares of the
Fund..........................................................................12

5. Proper Instructions........................................................13

6. Actions Permitted Without Express Authority................................13

7. Evidence of Authority......................................................13

8. Duties of Custodian With Respect to the Books of Account and
Calculation of Net Asset Value and Net Income.................................14

9. Records....................................................................14

10. Opinion of Fund's Independent Accountants.................................14

11. Reports to Fund by Independent Public Accountants.........................14

12. Compensation of Custodian.................................................15

13. Responsibility of Custodian...............................................15

14. Effective Period, Termination and Amendment...............................16

15. Successor Custodian.......................................................16

16. Interpretive and Additional Provisions....................................17

17. Additional Funds..........................................................17

18. Massachusetts Law to Apply................................................17

19. Prior Contracts...........................................................18

20. Reproduction of Documents.................................................18

21. Shareholder Communications Election.......................................18

22. Limitation of Liability...................................................18


<PAGE>


                          FORM OF CUSTODIAN CONTRACT
                          --------------------------

      This Contract between Mitchell  Hutchins  Securities  Trust, a business
trust organized and existing under the laws of Delaware, having its principal
place of  business  at 51 West 52nd  Street,  New York,  New York  10019-6114
hereinafter  called the "Fund",  and State Street Bank and Trust  Company,  a
Massachusetts  trust company,  having its principal place of' business at 225
Franklin  Street,  Boston,  Massachusetts,   02110,  hereinafter  called  the
"Custodian",

                                 WITNESSETH:

      WHEREAS,  the Fund is  authorized  to issue shares in separate  series,
with each such  series  representing  interests  in a separate  portfolio  of
securities and other assets; and

      WHEREAS,  the Fund  intends to  initially  offer  shares in two series,
PaineWebber  Enhanced S&P 500 Fund and PaineWebber  Enhanced  Nasdaq-100 Fund
(such series together with all other series  subsequently  established by the
Fund and made subject to this Contract in accordance with paragraph 17, being
herein referred to as the "Portfolio(s)");

      NOW THEREFORE,  in consideration of the mutual covenants and agreements
hereinafter contained, the parties hereto agree as follows:

1.    EMPLOYMENT OF CUSTODIAN AND PROPERTY TO BE HELD BY IT
      -----------------------------------------------------

      The Fund hereby employs the Custodian as the custodian of the assets of
the Portfolios of the Fund, including securities which the Fund, on behalf of
the  applicable  Portfolio  desires  to be held in places  within  the United
States  ("domestic  securities") and securities it desires to be held outside
the United States  ("foreign  securities")  pursuant to the provisions of the
Declaration  of  Trust.  The Fund on  behalf  of the  Portfolio(s)  agrees to
deliver to the Custodian all securities and cash of the  Portfolios,  and all
payments of income,  payments of principal or capital distributions  received
by it with respect to all securities owned by the  Portfolio(s)  from time to
time,  and the cash  consideration  received  by it for such new or  treasury
shares of  beneficial  interest  of the Fund  representing  interests  in the
Portfolios,  ("Shares")  as may be  issued  or sold  from  time to time.  The
Custodian  shall not be  responsible  for any property of a Portfolio held or
received by the Portfolio and not delivered to the Custodian.

      Upon  receipt of "Proper  Instructions"  (within the meaning of Article
5), the Custodian shall on behalf of the applicable Portfolio(s) from time to
time employ one or more sub-custodians, located in the United States but only
in accordance with an applicable vote by the Board of Trustees of the Fund on
behalf of the applicable Portfolio(s),  and provided that the Custodian shall
have no more or less  responsibility  or  liability to the Fund on account of
any actions or  omissions  of any  sub-custodian  so  employed  than any such
sub-custodian has to the Custodian. The Custodian may employ as sub-custodian
for the Fund's foreign  securities on behalf of the  applicable  Portfolio(s)
the  foreign  banking   institutions  and  foreign  securities   depositories
designated in Schedule A hereto but only in accordance with the provisions of
Article 3.


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Mitchell Hutchins Securities Trust




2.    DUTIES OF THE CUSTODIAN WITH RESPECT TO PROPERTY OF THE FUND HELD BY
      THE CUSTODIAN IN THE UNITED STATES
      ----------------------------------

2.1   HOLDING SECURITIES.  The Custodian shall hold and physically  segregate
      for the account of each Portfolio all non-cash property,  to be held by
      it in the United States including all domestic securities owned by such
      Portfolio,  other than (a) securities which are maintained  pursuant to
      Section 2.10 in a clearing agency which acts as a securities depository
      or in a book-entry  system  authorized  by the U.S.  Department  of the
      Treasury (each, a "U.S. Securities System") and (b) commercial paper of
      an issuer for which State Street Bank and Trust Company acts as issuing
      and paying agent ("Direct Paper") which is deposited and/or  maintained
      in the Direct Paper System of the Custodian (the "Direct Paper System")
      pursuant to Section 2.11.

2.2   DELIVERY  OF  SECURITIES.  The  Custodian  shall  release  and  deliver
      domestic securities owned by a Portfolio field by the Custodian or in a
      U.S.  Securities  System account of the Custodian or in the Custodian's
      Direct Paper book entry system account  ("Direct Paper System Account")
      only upon receipt of Proper Instructions from the Fund on behalf of the
      applicable Portfolio,  which may be continuing instructions when deemed
      appropriate by the parties, and only in the following cases:

      1)    Upon sale of such  securities for the account of the Portfolio and
            receipt of payment therefor;

      2)    Upon the  receipt of payment in  connection  with any  repurchase
            agreement  related  to  such  securities   entered  into  by  the
            Portfolio;

      3)    In the case of a sale effected through a U.S.  Securities System,
            in accordance with the provisions of Section 2.10 hereof;

      4)    To the  depository  agent  in  connection  with  tender  or other
            similar offers for securities of the Portfolio;

      5)    To the  issuer  thereof  or its agent  when such  securities  are
            called, redeemed,  retired or otherwise become payable;  provided
            that, in any such case, the cash or other  consideration is to be
            delivered to the Custodian;

      6)    To the issuer thereof,  or its agent,  for transfer into the name
            of the  Portfolio  or into the name of any nominee or nominees of
            the  Custodian  or into the  name or  nominee  name of any  agent
            appointed  pursuant  to  Section  2.9 or into the name or nominee
            name of any sub-custodian appointed pursuant to Article 1; or for
            exchange for a different  number of bonds,  certificates or other
            evidence representing the same aggregate face amount or number of
            units; PROVIDED that, in any such case, the new securities are to
            be delivered to the Custodian;

      7)    Upon  the  sale  of  such  securities  for  the  account  of' the
            Portfolio,  to  the  broker  or its  clearing  agent,  against  a
            receipt,  for  examination in accordance  with "street  delivery"
            custom;  provided that in any such case, the Custodian shall have
            no  responsibility  or  liability  for any loss  arising from the
            delivery of such securities  prior to receiving  payment for such
            securities   except  as  may  anise  from  the   Custodian's  own
            negligence or willful misconduct;


<PAGE>


Mitchell Hutchins Securities Trust




      8)    For  exchange  or  conversion  pursuant  to any  plan of  merger,
            consolidation,  recapitalization,  reorganization or readjustment
            of the securities of the issuer of such  securities,  or pursuant
            to provisions for  conversion  contained in such  securities,  or
            pursuant to any deposit  agreement;  provided  that,  in any such
            case, the new securities and cash, if any, are to be delivered to
            the Custodian;

      9)    In the  case of  warrants,  rights  or  similar  securities,  the
            surrender  thereof in the  exercise of such  warrants,  rights or
            similar  securities  or the  surrender  of  interim  receipts  or
            temporary securities for definitive securities; provided that, in
            any such case,  the new  securities  and cash,  if any, are to be
            delivered to the Custodian;

      10)   For delivery in connection  with any loans of securities  made by
            the Portfolio, BUT ONLY against receipt of adequate collateral as
            agreed  upon from time to time by the  Custodian  and the Fund on
            behalf  of the  Portfolio,  which  may be in the  form of cash or
            obligations issued by the United States government,  its agencies
            or  instrumentalities,  except that in connection  with any loans
            for which collateral is to be credited to the Custodian's account
            in the book-entry system authorized by the U.S. Department of the
            Treasury,  the Custodian  will not be held liable or  responsible
            for the delivery of securities  owned by the  Portfolio  prior to
            the receipt of such collateral;

      11)   For delivery as security in connection with any borrowings by the
            Fund on behalf of the  Portfolio  requiring a pledge of assets by
            the Fund on behalf of the Portfolio,  BUT ONLY against receipt of
            amounts borrowed;

      12)   For delivery in accordance  with the  provisions of any agreement
            among the Fund on behalf of the  Portfolio,  the  Custodian and a
            broker-dealer  registered  under the  Securities  Exchange Act of
            1934  (the   "Exchange   Act")  and  a  member  of  The  National
            Association of Securities  Dealers,  Inc.  ("NASD"),  relating to
            compliance with the rules of The Options Clearing Corporation and
            of any registered national securities exchange, or of any similar
            organization  or   organizations,   regarding   escrow  or  other
            arrangements in connection with  transactions by the Portfolio of
            the Fund;

      13)   For delivery in accordance  with the  provisions of any agreement
            among the Fund on behalf of the Portfolio,  the Custodian,  and a
            Futures  Commission   Merchant  registered  under  the  Commodity
            Exchange  Act,  relating  to  compliance  with  the  rules of the
            Commodity Futures Trading  Commission and/or any Contract Market,
            or any similar  organization or organizations,  regarding account
            deposits in connection with  transactions by the Portfolio of the
            Fund;

      14)   Upon receipt of instructions  from the transfer agent  ("Transfer
            Agent") for the Fund,  for delivery to such Transfer  Agent or to
            the holders of shares in connection with  distributions  in kind,
            as may be described from time to time in the currently  effective
            prospectus  and statement of additional  information of the Fund,
            related  to the  Portfolio  ("Prospectus"),  in  satisfaction  of
            requests by holders of Shares for repurchase or redemption; and

      15)   For any other proper corporate purpose, BUT ONLY upon receipt of,
            in addition to Proper Instructions from the Fund on behalf of the
            applicable  Portfolio,  a certified  copy of a resolution  of the
            Board of  Trustees  or of the  Executive  Committee  signed by an


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<PAGE>


Mitchell Hutchins Securities Trust




            officer  of  the  Fund  and  certified  by  the  Secretary  or an
            Assistant  Secretary,  specifying the securities of the Portfolio
            to be  delivered,  setting  forth  the  purpose  for  which  such
            delivery  is to be made,  declaring  such  purpose to be a proper
            corporate  purpose,  and  naming  the  person or  persons to whom
            delivery of such securities shall be made.

2.3   REGISTRATION OF SECURITIES.  Domestic  securities held by the Custodian
      (other than bearer  securities)  shall be registered in the name of the
      Portfolio  or in the name of any  nominee  of the Fund on behalf of the
      Portfolio or of any nominee of the  Custodian  which  nominee  shall be
      assigned  exclusively to the Portfolio,  unless the Fund has authorized
      in writing the appointment of a nominee to be used in common with other
      registered  investment  companies having the same investment adviser as
      the  Portfolio,  or in the name or nominee name of any agent  appointed
      pursuant  to  Section  2.9  or in  the  name  or  nominee  name  of any
      sub-custodian  appointed pursuant to Article 1. All securities accepted
      by the  Custodian  on behalf of the  Portfolio  under the terms of this
      Contract  shall be in "street  name" or other good delivery  form.  If,
      however,  the Fund  directs the  Custodian  to maintain  securities  in
      "street  name",  the  Custodian  shall utilize its best efforts only to
      timely collect income due the Fund on such securities and to notify the
      Fund  on a best  efforts  basis  only  of  relevant  corporate  actions
      including, without limitation, pendency of calls, maturities, tender or
      exchange offers.

2.4   BANK  ACCOUNTS.  The Custodian  shall open and maintain a separate bank
      account or accounts in the United States in the name of each  Portfolio
      of the Fund,  subject  only to draft or order by the  Custodian  acting
      pursuant to the terms of this Contract,  and shall hold in such account
      or accounts,  subject to the provisions hereof, all cash received by it
      from or for the account of the Portfolio, other than cash maintained by
      the Portfolio in a bank account established and used in accordance with
      Rule 17f-3 under the Investment  Company Act of 1940. Funds held by the
      Custodian  for a  Portfolio  may be  deposited  by it to its  credit as
      Custodian in the Banking  Department  of the Custodian or in such other
      banks or trust  companies as it may in its discretion deem necessary or
      desirable;  PROVIDED,  however,  that every such bank or trust  company
      shall be qualified to act as a custodian  under the Investment  Company
      Act of 1940 and that each such bank or trust  company  and the funds to
      be deposited  with each such bank or trust  company  shall on behalf of
      each  applicable  Portfolio  be  approved  by vote of a majority of the
      Board of Trustees of the Fund.  Such funds  shall be  deposited  by the
      Custodian in its capacity as Custodian and shall be withdrawable by the
      Custodian only in that capacity.

2.5   AVAILABILITY OF FEDERAL FUNDS.  Upon mutual agreement  between the Fund
      on behalf of each applicable Portfolio and the Custodian, the Custodian
      shall, upon the receipt of' Proper Instructions from the Fund on behalf
      of a Portfolio,  make federal funds  available to such  Portfolio as of
      specified  times  agreed  upon  from  time to time by the  Fund and the
      Custodian  in the amount of checks  received  in payment  for Shares of
      such Portfolio which are deposited into the Portfolio's account.

2.6   COLLECTION  OF INCOME.  Subject to the  provisions  of Section 2.3, the
      Custodian shall collect on a timely basis all income and other payments
      with respect to registered  domestic securities held hereunder to which
      each Portfolio shall be entitled either by law or pursuant to custom in
      the securities business, and shall collect on a timely basis all income
      and other  payments with respect to bearer  domestic  securities if, on
      the date of  payment by the  issuer,  such  securities  are held by the
      Custodian  or its  agent  thereof  and shall  credit  such  income,  as


                                      4
<PAGE>


Mitchell Hutchins Securities Trust



      collected, to such Portfolio's custodian account.  Without limiting the
      generality of the foregoing, the Custodian shall detach and present for
      payment all coupons and other income items  requiring  presentation  as
      and  when  they  become  due and  shall  collect  interest  when due on
      securities  held  hereunder.  Income due each  Portfolio on  securities
      loaned  pursuant  to the  provisions  of Section  2.2 (10) shall be the
      responsibility  of the  Fund.  The  Custodian  will  have  no  duty  or
      responsibility in connection therewith,  other than to provide the Fund
      with such information or data as may be necessary to assist the Fund in
      arranging  for the timely  delivery to the  Custodian  of the income to
      which the Portfolio is properly entitled.

2.7   PAYMENT OF FUND MONIES.  Upon receipt of Proper  Instructions  from the
      Fund on behalf of the  applicable  Portfolio,  which may be  continuing
      instructions  when deemed  appropriate  by the parties,  the  Custodian
      shall pay out monies of a Portfolio in the following cases only:

      1)    Upon  the  purchase  of  domestic  securities,  options,  futures
            contracts or options on futures  contracts for the account of the
            Portfolio but only (a) against the delivery of such securities or
            evidence of title to such options,  futures  contracts or options
            on futures contracts to the Custodian (or any bank,  banking firm
            or trust  company  doing  business in the United States or abroad
            which is qualified  under the Investment  Company Act of 1940, as
            amended,  to act as a custodian  and has been  designated  by the
            Custodian as its agent for this  purpose)  registered in the name
            of the  Portfolio  or in the name of a nominee  of the  Custodian
            referred to in Section 2.3 hereof or in proper form for transfer;
            (b) in the case of a purchase effected through a U.S.  Securities
            System,  in accordance  with the  conditions set forth in Section
            2.10 hereof;  (c) in the case of a purchase  involving the Direct
            Paper System,  in  accordance  with the  conditions  set forth in
            Section 2.11;  (d) in the case of repurchase  agreements  entered
            into  between  the  Fund  on  behalf  of the  Portfolio  and  the
            Custodian,  or another bank, or a broker-dealer which is a member
            of  NASD,  (i)  against  delivery  of the  securities  either  in
            certificate  form or through an entry  crediting the  Custodian's
            account at the Federal  Reserve Bank with such securities or (ii)
            against  delivery  of  the  receipt  evidencing  purchase  by the
            Portfolio of securities owned by the Custodian along with written
            evidence of the  agreement by the  Custodian to  repurchase  such
            securities  from  the  Portfolio  or (e) for  transfer  to a time
            deposit  account  of the Fund in any bank,  whether  domestic  or
            foreign;  such  transfer  may be  effected  prior to receipt of a
            confirmation  from a broker and/or the applicable bank,  pursuant
            to Proper Instructions from the Fund as defined in Article 5;

      2)    In  connection   with   conversion,   exchange  or  surrender  of
            securities  owned by the  Portfolio  as set forth in Section  2.2
            hereof;

      3)    For  the  redemption  or  repurchase  of  Shares  issued  by  the
            Portfolio as set forth in Article 4 hereof;

      4)    For the  payment of any  expense  or  liability  incurred  by the
            Portfolio,  including but not limited to the  following  payments
            for the account of the Portfolio:  interest,  taxes,  management,
            accounting, transfer agent and legal fees, and operating expenses
            of the Fund  whether or not such  expenses  are to be in whole or
            part capitalized or treated as deferred expenses;

      5)    For the  payment  of any  dividends  on Shares  of the  Portfolio
            declared pursuant to the governing documents of the Fund;

      6) For  payment  of the  amount of  dividends  received  in  respect of
         securities sold short;


                                      5
<PAGE>


Mitchell Hutchins Securities Trust




      7)    For any  other  proper  purpose,  BUT ONLY  upon  receipt  of, in
            addition  to Proper  Instructions  from the Fund on behalf of the
            Portfolio,  a  certified  copy of a  resolution  of the  Board of
            Trustees or of the  Executive  Committee of the Fund signed by an
            officer  of  the  Fund  and  certified  by  its  Secretary  or an
            Assistant  Secretary,  specifying  the  amount  of such  payment,
            setting  forth the purpose for which such  payment is to be made,
            declaring  such  purpose to be a proper  purpose,  and naming the
            person or persons to whom such payment is to be made.

2.8   LIABILITY  FOR PAYMENT IN ADVANCE OF RECEIPT OF  SECURITIES  PURCHASED.
      Except as specifically  stated other-wise in this Contract,  in any and
      every case where  payment for purchase of domestic  securities  for the
      account of a Portfolio  is made by the  Custodian in advance of receipt
      of  the  securities  purchased  in  the  absence  of  specific  written
      instructions  from the Fund on  behalf of such  Portfolio  to so pay in
      advance,  the Custodian shall be absolutely liable to the Fund for such
      securities to the same extent as if the securities had been received by
      the Custodian.

2.9   APPOINTMENT  OF AGENTS.  The  Custodian may at any time or times in its
      discretion appoint (and may at any time remove) any other bank or trust
      company which is itself  qualified under the Investment  Company Act of
      1940, as amended, to act as a custodian, as its agent to carry out such
      of the  provisions  of this Article 2 as the Custodian may from time to
      time direct; PROVIDED, HOWEVER, that the appointment of any agent shall
      not  relieve  the  Custodian  of its  responsibilities  or  liabilities
      hereunder.

2.10  DEPOSIT OF FUND ASSETS IN U. S. SECURITIES  SYSTEMS.  The Custodian may
      deposit and/or maintain  securities  owned by a Portfolio in a CLEARING
      AGENCY  registered  with the Securities and Exchange  Commission  under
      Section 17A of the  Securities  Exchange  Act of 1934,  which acts as a
      securities  depository,  or in the book-entry  system authorized by the
      U.S.   Department  of  the  Treasury  and  certain  federal   agencies,
      collectively   referred  to  herein  as  "U.S.  Securities  System"  in
      accordance  with  applicable  Federal  Reserve Board and Securities and
      Exchange  Commission rules and regulations,  if any, and subject to the
      following provisions:

      1)    The  Custodian  may keep  securities  of the  Portfolio in a U.S.
            Securities  System  provided that such securities are represented
            in an account ("Account") of the Custodian in the U.S. Securities
            System which shall not include any assets of the Custodian  other
            than assets  held as a  fiduciary,  custodian  or  otherwise  for
            customers;

      2)    The records of the  Custodian  with respect to  securities of the
            Portfolio which are maintained in a U.S.  Securities System shall
            identify  by  book-entry  those   securities   belonging  to  the
            Portfolio;

      3)    The Custodian shall pay for securities  purchased for the account
            of the  Portfolio  upon  (i)  receipt  of  advice  from  the U.S.
            Securities  System that such securities have been  transferred to
            the  Account,  and (ii) the making of an entry on the  records of
            the  Custodian  to reflect  such  payment  and  transfer  for the
            account of the Portfolio. The Custodian shall transfer securities
            sold for the account of the Portfolio  upon (i) receipt of advice
            from the U.S.  Securities System that payment for such securities
            has been  transferred  to the Account,  and (ii) the making of an


                                      6
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Mitchell Hutchins Securities Trust



            entry on the records of the  Custodian to reflect  such  transfer
            and  payment  for the  account  of the  Portfolio.  Copies of all
            advices  from  the  U.S.   Securities   System  of  transfers  of
            securities  for the account of the Portfolio  shall  identify the
            Portfolio,  be maintained  for the Portfolio by the Custodian and
            be  provided  to the  Fund  at its  request.  Upon  request,  the
            Custodian  shall  furnish  the Fund on  behalf  of the  Portfolio
            confirmation  of each  transfer  to or from  the  account  of the
            Portfolio  in the form of a written  advice  or notice  and shall
            furnish  to the Fund on behalf of the  Portfolio  copies of daily
            transaction sheets reflecting each day's transactions in the U.S.
            Securities System for the account of the Portfolio;

      4)    The Custodian  shall provide the Fund for the Portfolio  with any
            report obtained by the Custodian on the U.S.  Securities System's
            accounting system, internal accounting control and procedures for
            safeguarding securities deposited in the U.S. Securities System;

      5)    The Custodian  shall have received from the Fund on behalf of the
            Portfolio the initial or annual certificate,  as the case may be,
            required by Article 14 hereof;

      6)    Anything to the contrary in this  Contract  notwithstanding,  the
            Custodian  shall be  liable  to the Fund for the  benefit  of the
            Portfolio for any loss or damage to the Portfolio  resulting from
            use of the U.S.  Securities  System by reason of any  negligence,
            misfeasance  or  misconduct of the Custodian or any of its agents
            or of any of  its or  their  employees  or  from  failure  of the
            Custodian or any such agent to enforce effectively such rights as
            it may have against the U.S.  Securities  System; at the election
            of the Fund,  it shall be entitled to be subrogated to the rights
            of the  Custodian  with  respect  to any claim  against  the U.S.
            Securities  System or any other  person which the  Custodian  may
            have as a  consequence  of any such  loss or damage if and to the
            extent  that the  Portfolio  has not been made whole for any such
            loss or damage.

2.11  FUND ASSETS HELD IN THE CUSTODIAN'S  DIRECT PAPER SYSTEM. The Custodian
      may deposit  and/or  maintain  securities  owned by a Portfolio  in the
      Direct  Paper  System  of  the  Custodian   subject  to  the  following
      provisions:

      1)    No transaction  relating to securities in the Direct Paper System
            will be effected in the absence of Proper  Instructions  from the
            Fund on behalf of the Portfolio;

      2)    The Custodian may keep  securities of the Portfolio in the Direct
            Paper  System  only  if such  securities  are  represented  in an
            account  ("Account")  of the Custodian in the Direct Paper System
            which shall not include  any assets of the  Custodian  other than
            assets held as a fiduciary, custodian or otherwise for customers;

      3)    The records of the  Custodian  with respect to  securities of the
            Portfolio  which are  maintained in the Direct Paper System shall
            identify  by  book-entry  those   securities   belonging  to  the
            Portfolio;

      4)    The Custodian shall pay for securities  purchased for the account
            of the  Portfolio  upon the making of an entry on the  records of
            the  Custodian to reflect such payment and transfer of securities
            to the account of the  Portfolio.  The Custodian  shall  transfer
            securities  sold for the account of the Portfolio upon the making
            of an entry on the  records  of the  Custodian  to  reflect  such
            transfer and receipt of payment for the account of the Portfolio;

      5)    The  Custodian  shall furnish the Fund on behalf of the Portfolio
            confirmation  of each  transfer  to or from  the  account  of the


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<PAGE>


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            Portfolio,  in the form of a written advice or notice,  of Direct
            Paper on the next business day following  such transfer and shall
            furnish  to the Fund on behalf of the  Portfolio  copies of daily
            transaction  sheets reflecting each day's transaction in the U.S.
            Securities System for the account of the Portfolio;

      6)    The  Custodian  shall provide the Fund on behalf of the Portfolio
            with any report on its system of internal  accounting  control as
            the Fund may reasonable request from time to time.

2.12  SEGREGATED  ACCOUNT.   The  Custodian  shall  upon  receipt  of  Proper
      Instructions  from  the Fund on  behalf  of each  applicable  Portfolio
      establish  and  maintain a  segregated  account or accounts  for and on
      behalf of each such  Portfolio,  into which  account or accounts may be
      transferred cash and/or securities,  including securities maintained in
      an account by the  Custodian  pursuant to Section 2.10  hereof,  (i) in
      accordance  with the  provisions  of any  agreement  among  the Fund on
      behalf of the Portfolio,  the Custodian and a broker-dealer  registered
      under  the  Exchange  Act and a  member  of the  NASD  (or any  futures
      commission  merchant  registered  under the  Commodity  Exchange  Act),
      relating  to  compliance  with  the  rules  of  The  Options   Clearing
      Corporation and of any registered  national securities exchange (or the
      Commodity  Futures  Trading  Commission  or  any  registered   contract
      market),  or of any similar  organization or  organizations,  regarding
      escrow or other  arrangements  in connection  with  transactions by the
      Portfolio,   (ii)  for  purposes  of  segregating  cash  or  government
      securities in connection with options purchased, sold or written by the
      Portfolio or commodity  futures  contracts or options thereon purchased
      or sold by the  Portfolio,  (iii) for the purposes of compliance by the
      Portfolio  with the  procedures  required  by  Investment  Company  Act
      Release  No.  10666,  or any  subsequent  release  or  releases  of the
      Securities  and  Exchange  Commission  relating to the  maintenance  of
      segregated  accounts by  registered  investment  companies and (iv) for
      other proper corporate purposes,  BUT ONLY, in the case of clause (iv),
      upon  receipt of, in addition to Proper  Instructions  from the Fund on
      behalf of the applicable Portfolio, a certified copy of a resolution of
      the  Board of  Trustees  or of the  Executive  Committee  signed  by an
      officer of the Fund and  certified  by the  Secretary  or an  Assistant
      Secretary,  setting  forth the purpose or  purposes of such  segregated
      account and declaring such purposes to be proper corporate purposes.

2.13   OWNERSHIP  CERTIFICATES FOR TAX PURPOSES.  The Custodian shall execute
       ownership and other  certificates  and  affidavits for all federal and
       state tax  purposes  in  connection  with  receipt  of income or other
       payments with respect to domestic securities of each Portfolio held by
       it and in connection with transfers of securities.

2.14   PROXIES.  The Custodian shall, with respect to the domestic securities
       held hereunder, cause to be promptly executed by the registered holder
       of such securities, if the securities are registered otherwise than in
       the name of the Portfolio or a nominee of the Portfolio,  all proxies,
       without  indication  of the  manner in which  such  proxies  are to be
       voted, and shall promptly  deliver to the Portfolio such proxies,  all
       proxy   soliciting   materials  and  all  notices   relating  to  such
       securities.

2.15  COMMUNICATIONS  RELATING  TO  PORTFOLIO  SECURITIES.   Subject  to  the
      provisions of Section 2.3, the Custodian shall transmit promptly to the
      Fund for each  Portfolio all written  information  (including,  without
      limitation, pendency of calls and maturities of domestic securities and
      expirations  of rights in connection  therewith and notices of exercise


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Mitchell Hutchins Securities Trust



      of call and put options  written by the Fund on behalf of the Portfolio
      and  the  maturity  of  futures  contracts  purchased  or  sold  by the
      Portfolio)  received by the  Custodian  from issuers of the  securities
      being  held for the  Portfolio.  With  respect  to tender  or  exchange
      offers,  the  Custodian  shall  transmit  promptly to the Portfolio all
      written  information  received  by the  Custodian  from  issuers of the
      securities  whose  tender or  exchange is sought and from the party (or
      his  agents)  making the tender or  exchange  offer.  If the  Portfolio
      desires to take action with respect to any tender offer, exchange offer
      or any other  similar  transaction,  the  Portfolio  shall  notify  the
      Custodian at least three  business  days prior to the date on which the
      Custodian is to take such action.

3.    DUTIES OF THE CUSTODIAN WITH RESPECT TO PROPERTY OF THE FUND HELD
      OUTSIDE OF THE UNITED STATES
      ----------------------------

3.1   APPOINTMENT OF FOREIGN  SUB-CUSTODIANS.  The Fund hereby authorizes and
      instructs the Custodian to employ as sub-custodians for the Portfolio's
      securities  and other assets  maintained  outside the United States the
      foreign  banking  institutions  and  foreign  securities   depositories
      designated  on  Schedule  A  hereto  ("foreign  sub-custodians").  Upon
      receipt  of  "Proper  Instructions",  as  defined  in Section 5 of this
      Contract,  together with a certified  resolution of the Fund's Board of
      Trustees,  the  Custodian  and the Fund may agree to amend  Schedule  A
      hereto  from  time to  time to  designate  additional  foreign  banking
      institutions   and   foreign   securities   depositories   to   act  as
      sub-custodian.  Upon  receipt  of  Proper  Instructions,  the  Fund may
      instruct the Custodian to cease the  employment of any one or more such
      sub-custodians for maintaining custody of the Portfolio's assets.

3.2   ASSETS TO BE HELD.  The Custodian  shall limit the securities and other
      assets maintained in the custody of the foreign  sub-custodians to: (a)
      "foreign  securities",  as  defined in  paragraph  (c)(1) of Rule 17f-5
      under  the  Investment  Company  Act of  1940,  and (b)  cash  and cash
      equivalents  in such amounts as the Custodian or the Fund may determine
      to be reasonably necessary to effect the Portfolio's foreign securities
      transactions. The Custodian shall identify on its books as belonging to
      the Fund,  the  foreign  securities  of the Fund  held by each  foreign
      sub-custodian.

3.3   FOREIGN SECURITIES  SYSTEMS.  Except as may otherwise be agreed upon in
      writing by the Custodian and the Fund,  assets of the Portfolios  shall
      be  maintained  in  a  clearing  agency  which  acts  as  a  securities
      depository  or in a  book-entry  system  for the  central  handling  of
      securities   located   outside  the  United  States  (each  a  "Foreign
      Securities  System")  only  through  arrangements  implemented  by  the
      foreign banking institutions serving as sub-custodians  pursuant to the
      terms hereof (Foreign  Securities  Systems and U.S.  Securities Systems
      are collectively referred to herein as the "Securities Systems"). Where
      possible,   such  arrangements  shall  include  entry  into  agreements
      containing the provisions set forth in Section 3.5 hereof.

3.4   HOLDING  SECURITIES.  The  Custodian  may  hold  securities  and  other
      non-cash property for all of its customers,  including the Fund, with a
      foreign  sub-custodian  in a  single  account  that  is  identified  as
      belonging to the Custodian for the benefit of its  customers,  PROVIDED
      HOWEVER,  that  (i)  the  records  of the  Custodian  with  respect  to
      securities and other non-cash property of the Fund which are maintained
      in such account shall identify by book-entry those securities and other
      non-cash  property  belonging to the Fund and (ii) the Custodian  shall
      require  that  securities  and other  non-cash  property so held by the
      foreign sub-custodian be held separately from any assets of the foreign
      sub-custodian or of others.

3.5   AGREEMENTS  WITH FOREIGN  BANKING  INSTITUTIONS.  Each agreement with a
      foreign banking  institution shall provide that: (a) the assets of each


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Mitchell Hutchins Securities Trust



      Portfolio will not be subject to any right, charge,  security interest,
      lien or claim of any kind in favor of the foreign  banking  institution
      or its  creditors  or agent,  except a claim of payment  for their safe
      custody or administration,  (b) beneficial  ownership for the assets of
      each Portfolio will be freely transferable without the payment of money
      or value other than for custody or administration, (c) adequate records
      will  be  maintained  identifying  the  assets  as  belonging  to  each
      applicable Portfolio, (d) officers of or auditors employed by, or other
      representatives  of the  Custodian,  including to the extent  permitted
      under applicable law the independent  public  accountants for the Fund,
      will be given  access to the books and records of the  foreign  banking
      institution  relating  to its  actions  under  its  agreement  with the
      Custodian,  and  (e)  assets  of the  Portfolios  held  by the  foreign
      sub-custodian will be subject only to the instructions of the Custodian
      or its agents.

3.6   ACCESS OF  INDEPENDENT  ACCOUNTANTS  OF THE FUND.  Upon  request of the
      Fund,  the  Custodian  will use its best  efforts  to  arrange  for the
      independent  accountants of the Fund to be afforded access to the books
      and records of any foreign  banking  institution  employed as a foreign
      sub-custodian   insofar  as  such  books  and  records  relate  to  the
      performance  of such foreign  banking  institution  under its agreement
      with the Custodian.

3.7   REPORTS BY CUSTODIAN.  The Custodian  will supply to the Fund from time
      to  time,  as  mutually  agreed  upon,  statements  in  respect  of the
      securities  and  other  assets  of the  Portfolio(s)  held  by  foreign
      sub-custodians,  including  but not  limited  to an  identification  of
      entities  having  possession of the  Portfolio(s)  securities and other
      assets and advices or  notifications  of any transfers of securities to
      or  from  each  custodial  account  maintained  by  a  foreign  banking
      institution  for the Custodian on behalf of each  applicable  Portfolio
      indicating,  as to securities acquired for a Portfolio, the identity of
      the entity having physical possession of such securities.

3.8   TRANSACTIONS  IN  FOREIGN  CUSTODY  ACCOUNT.  (a)  Except as  otherwise
      provided  in  paragraph  (b) of this  Section  3.8,  the  provision  of
      Sections 2.2 and 2.7 of this Contract shall apply,  MUTATIS MUTANDIS to
      the foreign  securities  of the Fund held outside the United  States by
      foreign sub-custodians.

      (b)  Notwithstanding  any  provision of this  Contract to the contrary,
      settlement and payment for securities  received for the account of each
      applicable  Portfolio  and delivery of  securities  maintained  for the
      account of each applicable Portfolio may be effected in accordance with
      the customary  established  securities trading or securities processing
      practices  and  procedures in the  jurisdiction  or market in which the
      transaction   occurs,   including,   without   limitation,   delivering
      securities  to the  purchaser  thereof or to a dealer  therefor  (or an
      agent  for  such  purchaser  or  dealer)  against  a  receipt  with the
      expectation of receiving  later payment for such  securities  from such
      purchaser or dealer.

      (c) Securities maintained in the custody of a foreign sub-custodian may
      be maintained  in the name of such entity's  nominee to the same extent
      as set forth in Section  2.3 of this  Contract,  and the Fund agrees to
      hold any such nominee harmless from any liability as a holder of record
      of such securities.

3.9   LIABILITY OF FOREIGN  SUB-CUSTODIANS.  Each agreement pursuant to which
      the  Custodian  employs  a  foreign  banking  institution  as a foreign
      sub-custodian shall require the institution to exercise reasonable care
      in the  performance of its duties and to indemnify,  and hold harmless,
      the  Custodian  and the Fund from and against any loss,  damage,  cost,


                                     10
<PAGE>


Mitchell Hutchins Securities Trust



      expense,  liability or claim arising out of or in  connection  with the
      institution's  performance of such obligations.  At the election of the
      Fund,  it shall be  entitled  to be  subrogated  to the  rights  of the
      Custodian  with  respect  to  any  claims  against  a  foreign  banking
      institution as a consequence of any such loss, damage,  cost,  expense,
      liability or claim if and to the extent that the Fund has not been made
      whole for any such loss, damage, cost, expense, liability or claim.

3.10  LIABILITY OF CUSTODIAN.  The Custodian  shall be liable for the acts or
      omissions of a foreign  banking  institution  to the same extent as set
      forth with respect to  sub-custodians  generally in this  Contract and,
      regardless of whether assets are maintained in the custody of a foreign
      banking institution,  a foreign securities  depository or a branch of a
      U.S. bank as contemplated by paragraph 3.13 hereof, the Custodian shall
      not be liable for any loss, damage,  cost, expense,  liability or claim
      resulting from nationalization,  expropriation,  currency restrictions,
      or acts of war or  terrorism  or any loss where the  sub-custodian  has
      otherwise  exercised  reasonable  care.  Notwithstanding  the foregoing
      provisions of this  paragraph  3.10, in  delegating  custody  duties to
      State Street London Ltd.,  the  Custodian  shall not be relieved of any
      responsibility to the Fund for any loss due to such delegation,  except
      such loss as may result from (a)  political  risk  (including,  but not
      limited to, exchange control restrictions, confiscation, expropriation,
      nationalization,  insurrection,  civil strife or armed  hostilities) or
      (b) other losses  (excluding a bankruptcy or insolvency of State Street
      London Ltd. not caused by political  risk) due to Acts of God,  nuclear
      incident or other losses under  circumstances  where the  Custodian and
      State Street London Ltd. have exercised reasonable care.

3.11  REIMBURSEMENT  FOR  ADVANCES.  If the Fund  requires  the  Custodian to
      advance  cash or  securities  for any  purpose  for  the  benefit  of a
      Portfolio  including  the  purchase  or sale of foreign  exchange or of
      contracts for foreign  exchange,  or in the event that the Custodian or
      its nominee  shall incur or be assessed any taxes,  charges,  expenses,
      assessments,  claims or liabilities in connection  with the performance
      of this  Contract,  except such as may arise from its or its  nominee's
      own negligent action,  negligent failure to act or willful  misconduct,
      any  property  at any  time  held  for the  account  of the  applicable
      Portfolio shall be security  therefor and should the Fund fail to repay
      the  Custodian  promptly,  the  Custodian  shall be entitled to utilize
      available cash and to dispose of such Portfolio's  assets to the extent
      necessary to obtain reimbursement.

3.12  MONITORING  RESPONSIBILITIES.  The Custodian shall furnish  annually to
      the Fund, during the month of June,  information concerning the foreign
      sub-custodians  employed by the Custodian.  Such  information  shall be
      similar in kind and scope to that  furnished to the Fund in  connection
      with the initial approval of this Contract. In addition,  the Custodian
      will promptly inform the Fund in the event that the Custodian learns of
      a  material  adverse  change in the  financial  condition  of a foreign
      sub-custodian  or any material loss of the assets of the Fund or in the
      case of any foreign sub-custodian not the subject of an exemptive order
      from the Securities and Exchange Commission is notified by such foreign
      sub-custodian  that there appears to be a substantial  likelihood  that
      its shareholders'  equity will decline below $200 million (U.S. dollars
      or the  equivalent  thereof)  or  that  its  shareholders'  equity  has
      declined  below $200 million (in each case computed in accordance  with
      generally accepted U.S. accounting principles).

3.13  BRANCHES  OF U.S.  BANKS.  (a)  Except as  otherwise  set forth in this
      Contract,  the  provisions  hereof shall not apply where the custody of
      the  Portfolios  assets are maintained in a foreign branch of a banking
      institution  which is a "bank" as  defined  by  Section  2(a)(5) of the
      Investment  Company Act of 1940 meeting the  qualification set forth in


                                     11
<PAGE>


Mitchell Hutchins Securities Trust



      Section  26(a) of said Act.  The  appointment  of any such  branch as a
      sub-custodian shall be governed by paragraph 1 of this Contract.

      (b) Cash  held for each  Portfolio  of the Fund in the  United  Kingdom
      shall be maintained in an interest bearing account  established for the
      Fund with the Custodian's London branch, which account shall be subject
      to the direction of the Custodian, State Street London Ltd. or both.

3.14  TAX LAW. The Custodian  shall have no  responsibility  or liability for
      any obligations  now or hereafter  imposed on the Fund or the Custodian
      as custodian of the Fund by the tax law of the United States of America
      or  any  state  or  political  subdivision  thereof.  It  shall  be the
      responsibility  of the Fund to notify the Custodian of the  obligations
      imposed on the Fund or the  Custodian  as  custodian of the Fund by the
      tax law of  jurisdictions  other  than  those  mentioned  in the  above
      sentence,  including  responsibility  for  withholding and other taxes,
      assessments  or  other   governmental   charges,   certifications   and
      governmental  reporting.  The sole responsibility of the Custodian with
      regard to such tax law shall be to use reasonable efforts to assist the
      Fund with  respect to any claim for  exemption  or refund under the tax
      law of jurisdictions for which the Fund has provided such information.

4.    PAYMENTS FOR SALES OR REPURCHASES OR REDEMPTIONS OF SHARES OF THE FUND
      ----------------------------------------------------------------------

      The Custodian shall receive from the distributor for the Shares or from
the  Transfer  Agent  of  the  Fund  and  deposit  into  the  account  of the
appropriate  Portfolio  such  payments  as are  received  for  Shares of that
Portfolio  issued or sold from time to time by the Fund.  The Custodian  will
provide timely  notification to the Fund on behalf of each such Portfolio and
the  Transfer  Agent of any  receipt  by it of  payments  for  Shares of such
Portfolio.

      From such funds as may be available  for the purpose but subject to the
limitations of the Declaration of Trust and any applicable votes of the Board
of Trustees of the Fund pursuant  thereto,  the Custodian shall, upon receipt
of instructions  from the Transfer Agent, make funds available for payment to
holders of Shares who have  delivered  to the  Transfer  Agent a request  for
redemption or repurchase of their Shares.  In connection  with the redemption
or  repurchase of Shares of a Portfolio,  the  Custodian is  authorized  upon
receipt of instructions from the Transfer Agent to wire funds to or through a
commercial bank designated by the redeeming shareholders.  In connection with
the redemption or repurchase of Shares of the Fund, the Custodian shall honor
checks drawn on the  Custodian by a holder of Shares,  which checks have been
furnished  by the  Fund  to the  holder  of  Shares,  when  presented  to the
Custodian in  accordance  with such  procedures  and controls as are mutually
agreed upon from time to time between the Fund and the Custodian.

5.    PROPER INSTRUCTIONS
      -------------------

      Proper  Instructions  as used  throughout this Contract means a writing
signed or initialed by one or more person or persons as the Board of Trustees
shall have from time to time  authorized.  Each such writing  shall set forth
the  specific  transaction  or  type of  transaction  involved,  including  a
specific  statement of the purpose for which such action is  requested.  Oral
instructions  will  be  considered  Proper   Instructions  if  the  Custodian
reasonably  believes  them to have been given by a person  authorized to give
such  instructions with respect to the transaction  involved.  The Fund shall
cause all oral  instructions  to be confirmed  in writing.  Upon receipt of a
certificate   of  the   Secretary  or  an  Assistant   Secretary  as  to  the
authorization  by the Board of Trustees of the Fund accompanied by a detailed
description  of  procedures  approved  by  the  Board  of  Trustees,   Proper
Instructions   may   include   communications   effected   directly   between
electro-mechanical  or electronic devices provided that the Board of Trustees
and  the  Custodian  are  satisfied  that  such  procedures  afford  adequate
safeguards for the Portfolios'  assets. For purposes of this Section,  Proper


                                     12
<PAGE>


Mitchell Hutchins Securities Trust



Instructions shall include instructions received by the Custodian pursuant to
any  three-party  agreement  which  requires a  segregated  asset  account in
accordance with Section 2.12.

6.    ACTIONS PERMITTED WITHOUT EXPRESS AUTHORITY
      -------------------------------------------

      The Custodian may in its discretion, without express authority from the
Fund on behalf of each applicable Portfolio:

      1)    make payments to itself or others for minor  expenses of handling
            securities or other  similar  items  relating to its duties under
            this Contract, PROVIDED that all such payments shall be accounted
            for to the Fund on behalf of the Portfolio;

      2) surrender  securities in temporary form for securities in definitive
form;

      3)    endorse for  collection,  in the name of the  Portfolio,  checks,
            drafts and other negotiable instruments; and

      4)    in general, attend to all non-discretionary details in connection
            with the sale,  exchange,  substitution,  purchase,  transfer and
            other  dealings with the securities and property of the Portfolio
            except as  otherwise  directed  by the Board of  Trustees  of the
            Fund.

7.    EVIDENCE OF AUTHORITY
      ---------------------

      The  Custodian  shall be  protected  in acting  upon any  instructions,
notice, request,  consent,  certificate or other instrument or paper believed
by it to be genuine and to have been properly executed by or on behalf of the
Fund.  The Custodian may receive and accept a certified copy of a vote of the
Board of Trustees of the Fund as conclusive  evidence (a) of the authority of
any person to act in accordance with such vote or (b) of any determination or
of any action by the Board of Trustees  pursuant to the  Declaration of Trust
as described in such vote,  and such vote may be  considered as in full force
and effect until receipt by the Custodian of written  notice to the contrary.

8.    DUTIES OF CUSTODIAN WITH RESPECT TO THE BOOKS OF ACCOUNT AND
      CALCULATION OF NET ASSET VALUE AND NET INCOME
      ---------------------------------------------

      The Custodian shall cooperate with and supply necessary  information to
the entity or entities appointed by the Board of Trustees of the Fund to keep
the books of account of each Portfolio and/or compute the net asset value per
share of the outstanding  shares of each Portfolio or, if directed in writing
to do so by the Fund on behalf of the Portfolio, shall itself keep such books
of account and/or compute such net asset value per share. If so directed, the
Custodian  shall  also  calculate  daily the net income of the  Portfolio  as
described  in the  Fund's  currently  effective  prospectus  related  to such
Portfolio and shall advise the Fund and the Transfer Agent daily of the total
amounts of such net income and, if instructed in writing by an officer of the
Fund to do so, shall advise the Transfer Agent  periodically  of the division
of such net income among its various components.  The calculations of the net
asset value per share and the daily income of each Portfolio shall be made at
the  time or  times  described  from  time to  time in the  Fund's  currently
effective prospectus related to such Portfolio.


                                     13
<PAGE>


Mitchell Hutchins Securities Trust



9.    RECORDS
      -------

      The Custodian shall with respect to each Portfolio  create and maintain
all records relating to its activities and obligations under this Contract in
such  manner as will meet the  obligations  of the Fund under the  Investment
Company  Act of 1940,  with  particular  attention  to Section 31 thereof and
Rules 31a-1 and 31a-2  thereunder.  All such records shall be the property of
the Fund and shall at all times  during  the  regular  business  hours of the
Custodian be open for inspection by duly  authorized  officers,  employees or
agents of the Fund and  employees and agents of the  Securities  and Exchange
Commission.  The Custodian shall, at the Fund's request, supply the Fund with
a tabulation of securities  owned by each Portfolio and held by the Custodian
and shall,  when requested to do so by the Fund and for such  compensation as
shall be agreed upon between the Fund and the Custodian,  include certificate
numbers in such tabulations.

10.   OPINION OF FUND'S INDEPENDENT ACCOUNTANT
      ----------------------------------------

      The Custodian shall take all reasonable  action,  as the Fund on behalf
of each  applicable  Portfolio may from time to time request,  to obtain from
year to year favorable opinions from the Fund's independent  accountants with
respect to its activities hereunder in connection with the preparation of the
Fund's Form N-1A,  and Form N-SAR or other annual  reports to the  Securities
and Exchange  Commission and with respect to any other  requirements  of such
Commission.

11.   REPORTS TO FUND BY INDEPENDENT PUBLIC ACCOUNTANTS
      -------------------------------------------------

      The  Custodian  shall  provide  the  Fund,  on  behalf  of  each of the
Portfolios at such times as the Fund may reasonably require,  with reports by
independent public accountants on the accounting system,  internal accounting
control and procedures for  safeguarding  securities,  futures  contracts and
options  on  futures  contracts,   including   securities   deposited  and/or
maintained in a Securities  System,  relating to the services provided by the
Custodian under this Contract; such reports, shall be of sufficient scope and
in sufficient  detail,  as may  reasonably be required by the Fund to provide
reasonable  assurance  that any material  inadequacies  would be disclosed by
such examination,  and, if there are no such inadequacies,  the reports shall
so state.

12.   COMPENSATION OF CUSTODIAN
      -------------------------

      The  Custodian  shall be entitled to  reasonable  compensation  for its
services and expenses as Custodian,  as agreed upon from time to time between
the Fund on behalf of each applicable Portfolio and the Custodian.

13.   RESPONSIBILITY OF CUSTODIAN
      ---------------------------

      So long as and to the extent that it is in the  exercise of  reasonable
care,  the  Custodian  shall not be  responsible  for the title,  validity or
genuineness  of any property or evidence of title  thereto  received by it or
delivered  by it  pursuant  to this  Contract  and shall be held  harmless in
acting upon any notice,  request,  consent,  certificate or other  instrument
reasonably  believed by it to be genuine and to be signed by the proper party
or parties,  including any futures commission merchant acting pursuant to the
terms of a three-party  futures or options agreement.  The Custodian shall be
held to the exercise of  reasonable  care in carrying out the  provisions  of
this  Contract,  but  shall  be kept  indemnified  by and  shall  be  without
liability  to the Fund for any  action  taken or  omitted by it in good faith
without  negligence.  It shall be entitled to rely on and may act upon advice
of counsel  (who may be counsel  for the Fund) on all  matters,  and shall be


                                     14
<PAGE>


Mitchell Hutchins Securities Trust



without liability for any action reasonably taken or omitted pursuant to such
advice.

      Except as may arise  from the  Custodian's  own  negligence  or willful
misconduct or the  negligence or willful  misconduct  of a  sub-custodian  or
agent,  the  Custodian  shall be without  liability to the Fund for any loss,
liability,  claim or  expense  resulting  from or caused  by:  (i)  events or
circumstances   beyond  the  reasonable  control  of  the  Custodian  or  any
sub-custodian  or  Securities  System or any agent or  nominee  of any of the
foregoing,  including, without limitation,  nationalization or expropriation,
imposition of currency controls or restrictions, the interruption, suspension
or restriction of trading on or the closure of any securities  market.  power
or other  mechanical or  technological  failures or  interruptions,  computer
viruses  or  communications  disruptions,  acts of war or  terrorism,  riots,
revolutions,  work  stoppages,  natural  disasters or other similar events or
acts; (ii) errors by the Fund or the Investment Advisor in their instructions
to the Custodian provided such instructions have been in accordance with this
Contract;  (iii)  the  insolvency  of or acts or  omissions  by a  Securities
System;  (iv) any delay or  failure  of any  broker,  agent or  intermediary,
central bank, or other  commercially  prevalent payment or clearing system to
deliver to the Custodian's  sub-custodian or agent securities purchased or in
the remittance or payment made in connection  with  securities  sold; (v) any
delay or  failure  of any  company,  corporation,  or other body in charge of
registering  or  transferring  securities in the name of the  Custodian,  the
Fund, the Custodian's sub-custodians, nominees or agents or any consequential
losses  arising  out of such  delay or failure to  transfer  such  securities
including non-receipt of bonus,  dividends and rights and other accretions or
benefits;  (vi) delays or inability to perform its duties due to any disorder
in  market   infrastructure  with  respect  to  any  particular  security  or
Securities  System;  and (vii) any  provision of any present or future law or
regulation or order of the United States of America, or any state thereof, or
any  other  country,  or  political  subdivision  thereof  or of any court of
competent jurisdiction.

      The  Custodian  shall be liable for the acts or  omissions of a foreign
banking  institution  to  the  same  extent  as set  forth  with  respect  to
sub-custodians generally in this Contract.

      If the Fund on behalf of a Portfolio requires the Custodian to take any
action with respect to securities, which action involves the payment of money
or which action may, in the opinion of the Custodian, result in the Custodian
or its nominee  assigned to the Fund or the  Portfolio  being  liable for the
payment  of money or  incurring  liability  of some other  form,  the Fund on
behalf of the Portfolio, as a prerequisite to requiring the Custodian to take
such action,  shall provide  indemnity to the Custodian in an amount and form
satisfactory to it.

      If the Fund requires the Custodian,  its  affiliates,  subsidiaries  or
agents,  to advance cash or  securities  for any purpose  (including  but not
limited to securities  settlements,  foreign  exchange  contracts and assumed
settlement)  or in the event that the Custodian or its nominee shall incur or
be assessed any taxes, charges, expenses,  assessments, claims or liabilities
in connection with the performance of this Contract, except such as may arise
from its or its nominee's own negligent  action,  negligent failure to act or
willful  misconduct,  any  property  at any time held for the  account of the
applicable  Portfolio shall be security  therefor and should the Fund fail to
repay the  Custodian  promptly,  the  Custodian  shall be entitled to utilize
available  cash and to  dispose  of such  Portfolio's  assets  to the  extent
necessary to obtain reimbursement.

      In no event  shall the  Custodian  be liable for  indirect,  special or
consequential damages.



                                     15
<PAGE>


Mitchell Hutchins Securities Trust



14.   EFFECTIVE PERIOD, TERMINATION AND AMENDMENT
      -------------------------------------------

      This  Contract  shall  become  effective  as of  its  execution,  shall
continue in full force and effect until  terminated as hereinafter  provided,
may be amended at any time by mutual  agreement of the parties hereto and may
be  terminated  by either  party by an  instrument  in writing  delivered  or
mailed,  postage prepaid to the other party,  such termination to take effect
not sooner than thirty (30) days after the date of such  delivery or mailing;
PROVIDED,  however that the  Custodian  shall not with respect to a Portfolio
act under  Section  2.10  hereof in the  absence  of  receipt  of an  initial
certificate  of the  Secretary  or an Assistant  Secretary  that the Board of
Trustees of the Fund has approved the initial use of a particular  Securities
System by such  Portfolio,  as required  by Rule 17f-4  under the  Investment
Company Act of 1940, as amended and that the Custodian shall not with respect
to a Portfolio  act under Section 2.11 hereof in the absence of receipt of an
initial certificate of the Secretary or an Assistant Secretary that the Board
of Trustees  has  approved the initial use of the Direct Paper System by such
Portfolio;  PROVIDED  FURTHER,  however,  that the Fund  shall  not  amend or
terminate this Contract in contravention  of any applicable  federal or state
regulations,  or any  provision  of the  Declaration  of Trust,  and  further
provided, that the Fund on behalf of one or more of the Portfolios may at any
time by action of its Board of Trustees (i) substitute  another bank or trust
company  for the  Custodian  by  giving  notice  as  described  above  to the
Custodian,  or (ii)  immediately  terminate this Contract in the event of the
appointment of a conservator or receiver for the Custodian by the Comptroller
of the Currency or upon the  happening of a like event at the direction of an
appropriate regulatory agency or court of competent jurisdiction.

      Upon termination of the Contract, the Fund on behalf of each applicable
Portfolio  shall pay to the Custodian such  compensation  as may be due as of
the date of such  termination and shall likewise  reimburse the Custodian for
its costs, expenses and disbursements.

15.   SUCCESSOR CUSTODIAN
      -------------------

      If a successor custodian for the Fund, of one or more of the Portfolios
shall be appointed by the Board of Trustees of the Fund, the Custodian shall,
upon  termination,  deliver to such successor  custodian at the office of the
Custodian, duly endorsed and in the form for transfer, all securities of each
applicable  Portfolio  then held by it  hereunder  and shall  transfer  to an
account  of the  successor  custodian  all of the  securities  of  each  such
Portfolio held in a Securities System.

      If no such successor custodian shall be appointed, the Custodian shall,
in like manner,  upon  receipt of a certified  copy of a vote of the Board of
Trustees of the Fund,  deliver at the office of the  Custodian  and  transfer
such securities, funds and other properties in accordance with such vote.

      In the event that no written order designating a successor custodian or
certified  copy of a vote of the Board of Trustees  shall have been delivered
to the  Custodian  on or before the date when such  termination  shall become
effective,  then the  Custodian  shall have the right to deliver to a bank or
trust company,  which is a "bank" as defined in the Investment Company Act of
1940, doing business in Boston,  Massachusetts,  of its own selection, having
an aggregate capital,  surplus,  and undivided profits,  as shown by its last
published  report, of not less than  $25,000,000,  all securities,  funds and
other properties held by the Custodian on behalf of each applicable Portfolio
and all  instruments  held by the  Custodian  relative  thereto and all other
property  held by it  under  this  Contract  on  behalf  of  each  applicable
Portfolio  and to transfer to an account of such  successor  custodian all of
the  securities  of  each  such  Portfolio  held  in any  Securities  System.


                                     16
<PAGE>


Mitchell Hutchins Securities Trust



Thereafter,  such  bank  or  trust  company  shall  be the  successor  of the
Custodian under this Contract.

      In the event that securities,  funds and other properties remain in the
possession of the  Custodian  after the date of  termination  hereof owing to
failure of the Fund to procure the certified  copy of the vote referred to or
of the Board of  Trustees  to appoint a successor  custodian,  the  Custodian
shall be entitled to fair compensation for its services during such period as
the  Custodian  retains  possession  of  such  securities,  funds  and  other
properties  and the  provisions of this  Contract  relating to the duties and
obligations of the Custodian shall remain in full force and effect.

16.   INTERPRETIVE AND ADDITIONAL PROVISIONS
      --------------------------------------

      In connection  with the operation of this  Contract,  the Custodian and
the Fund on behalf of each of the Portfolios,  may from time to time agree on
such  provisions  interpretive  of or in addition to the  provisions  of this
Contract as may in their joint opinion be  consistent  with the general tenor
of this Contract.  Any such interpretive or additional provisions shall be in
a writing signed by both parties and shall be annexed  hereto,  PROVIDED that
no such interpretive or additional provisions shall contravene any applicable
federal or state  regulations or any provision of the Declaration of Trust of
the Fund. No  interpretive  or additional  provisions made as provided in the
preceding sentence shall be deemed to be an amendment of this Contract.

17.   ADDITIONAL FUNDS
      ----------------

      In the event that the Fund  establishes one or more series of Shares in
addition  to  PaineWebber  Enhanced  S&P 500  Fund and  PaineWebber  Enhanced
Nasdaq-100 Fund with respect to which it desires to have the Custodian render
services  as  custodian  under  the  terms  hereof,  it shall so  notify  the
Custodian in writing,  and if the Custodian agrees in writing to provide such
services, such series of Shares shall become a Portfolio hereunder.

18.   MASSACHUSETTS LAW TO APPLY
      --------------------------

      This Contract shall be construed and the provisions thereof interpreted
under and in accordance with laws of The Commonwealth of Massachusetts.

19.   PRIOR CONTRACTS
      ---------------

      This Contract  supersedes and  terminates,  as of the date hereof,  all
prior contracts  between the Fund on behalf of each of the Portfolios and the
Custodian relating to the custody of the Fund's assets.

20.   REPRODUCTION OF DOCUMENTS
      -------------------------

      This Contract and all schedules,  exhibits,  attachments and amendments
hereto  may  be  reproduced  by  any  photographic,  photostatic,  microfilm,
micro-card,  miniature  photographic  or other similar  process.  The parties
hereto  all/each  agree that any such  reproduction  shall be  admissible  in
evidence as the original itself in any judicial or administrative proceeding,
whether  or not  the  original  is in  existence  and  whether  or  not  such
reproduction was made by a party in the regular course of business,  and that
any enlargement, facsimile or further reproduction of such reproduction shall
likewise be admissible in evidence.


                                     17
<PAGE>


Mitchell Hutchins Securities Trust



21.   SHAREHOLDER COMMUNICATIONS ELECTION
      -----------------------------------

      Securities and Exchange Commission Rule 14b-2 requires banks which hold
securities  for the account of customers to respond to requests by issuers of
securities  for the names,  addresses  and holdings of  beneficial  owners of
securities  of that issuer held by the bank unless the  beneficial  owner has
expressly objected to disclosure of this information. In order to comply with
the rule, the Custodian needs the Fund to indicate  whether it authorizes the
Custodian  to  provide  the  Fund's  name,  address,  and share  position  to
requesting  companies  whose  securities the Fund owns. If the Fund tells the
Custodian "no", the Custodian will not provide this information to requesting
companies.  If the Fund tells the  Custodian  "yes" or does not check  either
"yes" or "no" below,  the Custodian is required by the rule to treat the Fund
as consenting to disclosure of this  information for all securities  owned by
the Fund or any funds or  accounts  established  by the Fund.  For the Fund's
protection,  the Rule prohibits the requesting  company from using the Fund's
name and address for any purpose other than corporate communications.  Please
indicate  below  whether the Fund  consents or objects by checking one of the
alternatives below.

      YES [ ] The  Custodian  is  authorized  to  release  the  Fund's  name,
              address, and share positions.

      NO [ ] The  Custodian  is not  authorized  to release the Fund's  name,
             address, and share positions.

22.   LIMITATION OF LIABILITY
      -----------------------

      The Custodian agrees that the Contract may only be enforced against the
assets of the Fund or the particular Portfolio of the Fund.

      IN WITNESS  WHEREOF,  each of the parties has caused this instrument to
he executed in its name and behalf by its duly authorized  representative and
its seal to be hereunder affixed as of the ___ day of March, 2000.



ATTEST                                   MITCHELL HUTCHINS SECURITIES TRUST


________________________                 _______________________
Name:                                    Name:
Title:                                   Title:

ATTEST                                   STATE STREET BANK AND TRUST COMPANY




_________________________                ________________________



                                     18
<PAGE>


Mitchell Hutchins Securities Trust



                                  Schedule A
                                17f-5 Approval


      The  Board of  Trustees  of  MITCHELL  HUTCHINS  SECURITIES  TRUST  has
approved  certain  foreign  banking   institutions  and  foreign   securities
depositories  within  State  Street's  Global  Custody  Network  for  use  as
subcustodians  for the  Fund's  securities,  cash and cash  equivalents  held
outside of the United  States.  Board  approval is as indicated by the Fund's
Authorized Officer:

<TABLE>
<CAPTION>

FUND
OFFICER
INITIALS   COUNTRY        SUBCUSTODIAN                       CENTRAL DEPOSITORY
- --------   -------        ------------                       ------------------
<S>        <C>            <C>                                <C>


_______    STATE STREET'S ENTIRE GLOBAL CUSTODY NETWORK LISTED BELOW
_______    Argentina      Citibank, N.A.                     Caja de Valores S.A.
_______    Australia      Westpac Banking Corporation        Austraclear Limited; Reserve
                                                             Bank Information and Transfer
                                                             System (RITS)
_______    Austria        Erste Bank der Oesterreichischen   Oesterreichische Kontrollbank
                          Sparkasen AG                       AG (Wertpapiersammelbank
                                                             Division)
_______    Bahrain        The British Bank of the Middle     None
                          East (as delegate of the Hongkong
                          and Shanghai Banking Corporation
                          Limited)
_______    Bangladesh     Standard Chartered Bank            None
_______    Belgium        Generale Bank                      Caisse Interprofessionnelle de
                                                             et de Depots Virements de
                                                             Titres S.A. (CIK);
                                                             Banque Nationale de Belgique
_______    Bermuda        The Bank of Bermuda Limited        None
_______    Botswana       Barclays Bank of Botswana Limited  None
_______    Brazil         Citibank, N.A.                     C>mera de Liquidao de Sao
                                                             Paula;
                                                             Banco Central do Brasil,
                                                             Systema Especial de
                                                             Liquidaca e
                                                             Custodia (SELIC)
_______    Bulgaria       ING Bank N.V.                      Central Depository AD
_______    Canada         Canada Trustco Mortgage Company    The Canadian Depository for
                                                             Securities Limited (CDS)
_______    Chile          Citibank, N.A.                     None
_______    People's       Banking Corporation Limited,       The Hongkong and Shanghai,
           Republic of    Shanghai and Shenzhen branches     Shanghai Registration
           China                                             Corporation (SSCCRC);
                                                             Shenzhen Securities Central
                                                             Clearing
_______    Colombia       Cititrust Colombia S.A. Sociedad   None
                          Fiduciaria
_______    Croatia        Privredna Banka Zagreb d.d.        Ministry of Finance

</TABLE>


<PAGE>


Mitchell Hutchins Securities Trust

<TABLE>
<CAPTION>
<S>        <C>            <C>                                <C>


_______    Cyprus         Barclays Bank PLC                  None
                          Cyprus Offshore Banking Unit
_______    Czech Republic Ceskoslovenska Obchodni            Stredisko cennych
                          Banka A.S.                         papi ru (SCP);
                                                             Czech National Bank (CNB)
_______    Denmark        Den Danske Bank                    Verdipapircentralen - The
                                                             Danish Securities Center (VP)
_______    Ecuador        Citibank, N.A.                     None
_______    Egypt          National Bank of Egypt             Misr Company for Clearing,
                                                             Settlement, and Central
                                                             Depository (MCSD)
_______    Finland        Merita Bank Ltd.                   The Finnish Central Securities
                                                             Depository (CSD)
_______    France         Banque Paribas                     Socie te
                                                             Interprofessionnelle pour la
                                                             Compensation des Valeurs
                                                             Mobilieres (SICOVAM);
                                                             Banque de France, Saturne
                                                             System
_______    Germany        Dresdner Bank AG                   The Deutscher Kassenverein AG
_______    Ghana          Barclays Bank of Ghana Limited     None
_______    Greece         National Bank of Greece S.A        The Central Securities
                                                             Depository
                                                             (Apothetirion Titlon A.E.);
                                                             Bank of Greece
_______    Hong Kong      Standard Chartered Bank            The Central Clearing and
                                                             Settlement System (CCASS);
                                                             The Central Money Markets Unit
                                                             (CMU)
_______    Hungary        Citibank Rt., Budapest             The Central Depository and
                                                             Clearing House (Budapest) Ltd.
                                                             (KELER Ltd.)
_______    India          Deutsche Bank AG                   The National Securities
                                                             Depository Limited
_______                   The Hongkong and Shanghai Banking  The National Securities
                          Corporation Limited                Depository Limited
_______    Indonesia      Standard Chartered Bank            None
_______    Ireland        Bank of Ireland                    None;
                                                             The Central Bank of Ireland,
                                                             The Gilt Settlement Office
                                                             (GSO)
_______    Israel         Bank Hapoalim B.M.                 The Clearing House of the Tel
                                                             Aviv Stock Exchange;
                                                             Bank of Israel
_______    Italy          Banque Paribas                     Monte Titoli S.p.A.;
                                                             Banca d'Italia
_______    Ivory Coast    Socie te                           None
                          Generale de Banques en
                          Ce te d'lvoire
_______    Japan          The Daiwa Bank, Limited            Japan Securities Depository
                                                             Center (JASDEC);


<PAGE>


Mitchell Hutchins Securities Trust



                                                             Bank of Japan Net System
_______                   The Fuji Bank, Limited             Japan Securities Depository
                                                             Center (JASDEC);
                                                             Bank of Japan Net System
_______                   The Sumitomo Trust & Banking Co.,  Japan Securities Depository
                          Ltd                                Center (JASDEC);
                                                             Bank of Japan Net System
_______    Jordan         The British Bank of the Middle     None
                          East (as delegate of the Hongkong
                          and Shanghai Banking Corporation
                          Limited)
_______    Kenya          Barclays Bank of Kenya Limited     None
_______    Republic of    SEOULBANK                          Korea Securities Depository
           Korea                                             (KSD)
_______    Lebanon        The British Bank of the Middle     Custodian and Clearing Center
                          East (as delegate of the Hongkong  of Financial Instruments for
                          and Shanghai Banking Corporation   Lebanon (MIDCLEAR) S.A.L.;
                          Ltd. )
                                                             The Central Bank of Lebanon
_______    Malaysia       Standard Chartered Bank            Malaysian Central Depository
                          Malaysia Berhad                    Sdn. Bhd. (MCD);
                                                             Bank Negara Malaysia,
                                                             Scripless Securities Trading
                                                             and
_______    Mauritius      The Hongkong and Shanghai          The Central Depository &
                                                             Settlement
_______    Mexico         Citibank Mexico, S.A.              S.D. INDEVAL, S.A. de C.V.
                                                             (Instituto para el
                                                             Depo sito de Valores)
_______    Morocco        Banque Commerciale du Maroc        None
_______    The            MeesPierson N.V.                   Nederlands Centraal Instituut
           Netherlands                                       voor Giraal Effectenverkeer
                                                             B.V. (NECIGEF);
_______    New Zealand    ANZ Banking Group (New Zealand)    New Zealand Central Securities
                          Limited                            Depository Limited (NZCSD)
_______    Norway         Christiania Bank og                Verdipapirsentralen - The
                                                             Norwegian
_______    Oman           The British Bank of the Middle     Muscat Securities Market (MSM)
                          East (as delegate of the Hongkong
                          and Shanghai Banking Corporation
                          Limited
_______    Pakistan       Deutsche Bank AG                   Central Depository Company of
                                                             Pakistan Ltd.
_______    Peru           Citibank, N.A.                     Caja de Valores y
                                                             Liquidaciones (CAVALI, S.A.)
_______    Philippines    Standard Chartered Bank            The Philippines Central
                                                             Depository Inc. (PCD);
                                                             The Book- Entry- System (BES)
                                                             of Bangko
</TABLE>


<PAGE>


Mitchell Hutchins Securities Trust


<TABLE>
<CAPTION>
<S>        <C>            <C>                                <C>


                                                             Sentral ng Pilipinas; The
                                                             Registry of Scripless
                                                             Securities (ROSS) of the
                                                             Bureau of Treasury
_______    Poland         Citibank Poland S.A.               The National Depository of
                                                             Securities (Krajowy Depozyt
                                                             Papierow
                                                             Wartosciowych);
                                                             National Bank of Poland
_______    Portugal       Banco Comercial Portugues          Central de Valores
                                                             Mobiliarios (Central)
_______    Romainia       ING Bank N.V. - Bucharest          National Securities Clearing,
                                                             Settlement and Depository
                                                             Company
_______    Russia         Credit Suisse First Boston,        None
                          Zurich via Credit Suisse First
                          Boston Limited, Moscow
_______    Singapore      The Development Bank of Singapore  The Central Depository (Pte)
                          Ltd.                               Limited (CDP)
_______    Slovak         Ceskoslovenska Obchodna            Stredisko Cennych
           Republic       Banka A.S.                         Papierov (SCP);
                                                             National Bank of Slovakia
_______    Slovenia       Banka Creditanstalt d.d.           Klirinsko Depotna Bruzba
_______    South Africa   Standard Bank of South Africa      The Central Depository Limited
                          Limited
_______    Spain          Banco Santander, S.A.              Servicio de Compensacio
                                                             y Liquidacion de Valores,
                                                             S.A. (SCLV);
                                                             Banco de Espana,
                                                             Anotaciones en Cuenta
_______    Sri Lanka      The Hongkong and Shanghai Banking  Central Depository System
                          Corporation Limited                (Pvt) Limited
_______    Swaziland      Barclays Bank of Swaziland Limited None
_______    Sweden         Skandinaviska Enskilda Banken      Verdepapperscentralen VPC
                                                             AB - The Swedish Central
                                                             Securities Depository
_______    Switzerland    Union Bank of Switzerland          Schweizerische Effekten - Giro
                                                             AG (SEGA); INTERSETTLE
_______    Taiwan -       Central Trust of China             The Taiwan Securities Central
           R.O.C.         OR                                 Depository Company, Ltd. (TSCD)
                          ----------------------------------
                          (Client Designated Subcustodian)
_______    Thailand       Standard Chartered Bank            Thailand Securities Depository
                                                             Company Limited (TSD)
_______    Turkey         Citibank, N.A.                     Takas ve Saklama Bankasi A.S.
                                                             (TAKASBANK);
                                                             Central Bank of Turkey
_______    United         State Street Bank and Trust        None;
           Kingdom        Company                            The Bank of England,
                                                             The Central Gilts Office (CGO);
</TABLE>


<PAGE>


Mitchell Hutchins Securities Trust


<TABLE>
<CAPTION>
<S>        <C>            <C>                                <C>

                                                             The Central Moneymarkets
                                                             Office (CMO);
_______    Uruguay        Citibank, N.A.                     None
_______    Venezuela      Citibank, N.A.                     None
_______    Zambia         Barclays Bank of Zambia Limited    Lusaka Central Depository (LCD)
_______    Zimbabwe       Barclays Bank of Zimbabwe Limited  None
_______    Euroclear (The Euroclear System)/State Street London Limited
_______    Cedel (Cedel Bank, societe anonyme)/State Street London Limited
</TABLE>




CERTIFIED BY:




_____________________________      ________________
Fund's Authorized Officer                Date





                                                                     Exhibit (8)

             FORM OF TRANSFER AGENCY AND RELATED SERVICES AGREEMENT


         THIS AGREEMENT is made as of __________, 2000 by and between PFPC INC.,
a Delaware  corporation  ("PFPC"),  and MITCHELL  HUTCHINS  SECURITIES  TRUST, a
Delaware business trust (the "Trust").

                              W I T N E S S E T H:

         WHEREAS,  the Trust is registered as an open-end management  investment
company under the  Investment  Company Act of 1940, as amended (the "1940 Act");
and  WHEREAS,  the  Trust  wishes  to retain  PFPC to serve as  transfer  agent,
registrar,  dividend  disbursing agent and related services agent to the Trust's
Portfolio (as hereinafter defined) and PFPC wishes to furnish such services.

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
herein contained,  and intending to be legally bound hereby,  the parties hereto
agree as follows:

         1. DEFINITIONS. AS USED IN THIS AGREEMENT:

            (a) "1933 ACT" means the Securities Act of 1933, as amended.

            (b)  "1934  ACt"  means  the  Securities  Exchange  Act of 1934,  as
amended.

            (c) "AUTHORIZED PERSON" means any officer of the Trust and any other
person duly  authorized by the Trust's Board of Directors or Trustees  ("Board")
to give Oral  Instructions  and Written  Instructions on behalf of the Trust and
listed on the Authorized Persons Appendix attached hereto and made a part hereof
or any  amendment  thereto as may be received by PFPC.  An  Authorized  Person's
scope of authority may be limited by the Trust by setting forth such  limitation
in the Authorized  Persons  Appendix.


<PAGE>

            (d) "CEA" means the Commodities  Exchange Act, as amended.

            (e) "ORAL INSTRUCTIONS" mean oral instructions received by PFPC from
an Authorized Person.

            (f) "PORTFOLIO" means a series or investment  portfolio of the Trust
identified on Annex A hereto,  as the same may from time to time be amended,  if
the Trust consists of more than one series or investment portfolio;  however, if
the Trust does not have separate series or investment portfolios, then this term
shall be deemed to refer to the Trust itself.

            (g)  "SEC"  means  the  Securities  and  Exchange  Commission.

            (h) "SECURITIES  LAWS" mean the 1933 Act, the 1934 Act, the 1940 Act
and the CEA.

            (i) "SHARES" mean the shares of common stock or beneficial  interest
of any series or class of the Trust.

            (j)  "WRITTEN  INSTRUCTIONS" mean written  instructions signed by an
Authorized  Person and received by PFPC.  The  instructions  may be delivered by
hand, mail, tested telegram, cable, telex or facsimile sending device.

         2.  APPOINTMENT.  The Trust hereby  appoints  PFPC to serve as transfer
agent,  registrar,  dividend  disbursing agent and related services agent to the
Trust, and should the Trust have separate Portfolios, those Portfolios which are
listed  on Annex A  hereto,  in  accordance  with the  terms  set  forth in this
Agreement. PFPC accepts such appointment and agrees to furnish such services.

         3.  DELIVERY OF  DOCUMENTS.  The Trust (or a particular  Portfolio,  as
appropriate)  has  provided  or,  where  applicable,  will provide PFPC with the
following:


                                       2
<PAGE>

            (a)  Certified or  authenticated  copies of the  resolutions  of the
                 Trust's  Board  approving  the  appointment  of PFPC to provide
                 services to the Trust and approving this Agreement;

            (b)  A copy of each executed broker-dealer agreement with respect to
                 each Trust; and

            (c)  Copies (certified or authenticated if requested by PFPC) of any
                 post-effective amendment to the Trust's registration statement,
                 advisory   agreement,   distribution   agreement,   shareholder
                 servicing  agreement and all  amendments or  supplements to the
                 foregoing upon request.

         4.  COMPLIANCE  WITH RULES AND  REGULATIONS.  PFPC undertakes to comply
with all applicable  requirements of the Securities Laws and any laws, rules and
regulations of governmental  authorities having jurisdiction with respect to the
duties to be  performed  by PFPC  hereunder.  Except as  specifically  set forth
herein,  PFPC assumes no responsibility  for such compliance by the Trust or any
of its  Portfolios.

         5. INSTRUCTIONS.

         (a) Unless  otherwise  provided in this Agreement,  PFPC shall act only
upon Oral Instructions and Written  Instructions.

         (b) PFPC  shall be  entitled  to rely  upon any Oral  Instructions  and
Written  Instructions  it receives  from an Authorized  Person  pursuant to this
Agreement.  PFPC may assume  that any Oral  Instruction  or Written  Instruction
received  hereunder  is not in any  way  inconsistent  with  the  provisions  of
organizational documents or of any vote, resolution or proceeding of the Trust's
Board or of the Trust's  shareholders,  unless and until PFPC  receives  Written
Instructions  to the contrary.

         (c) The Trust agrees to forward to PFPC Written Instructions confirming
Oral Instructions so that PFPC receives the Written Instructions by the close of
business on the next day after such Oral  Instructions  are  received.  The fact
that such confirming  Written  Instructions are not received by PFPC shall in no


                                       3
<PAGE>

way invalidate the transactions or enforceability of the transactions authorized
by the Oral  Instructions.  Where  Oral  Instructions  or  Written  Instructions
reasonably  appear to have been received from an Authorized  Person,  PFPC shall
incur no liability to the Trust in acting upon such Oral Instructions or Written
Instructions  provided that PFPC's actions  comply with the other  provisions of
this Agreement.

         6. RIGHT TO  RECEIVE  ADVICE.

         (a) ADVICE OF THE TRUST. If PFPC is in doubt as to any action it should
or should  not take,  PFPC may  request  directions  or advice,  including  Oral
Instructions or Written Instructions,  from the Trust.

         (b) ADVICE OF COUNSEL.  If PFPC shall be in doubt as to any question of
law  pertaining  to any  action it should or should not take,  PFPC may  request
advice at its own cost from such counsel of its own choosing (who may be counsel
for the Trust, the Trust's  investment  adviser or PFPC, at the option of PFPC).

         (c) CONFLICTING  ADVICE. In the event of a conflict between directions,
advice or Oral  Instructions  or Written  Instructions  PFPC  receives  from the
Trust,  and the advice it receives from  counsel,  PFPC may rely upon and follow
the advice of  counsel.  In the event  PFPC so relies on the advice of  counsel,
PFPC  remains  liable  for any  action  or  omission  on the part of PFPC  which
constitutes willful misfeasance,  bad faith, negligence or reckless disregard by
PFPC of any duties, obligations or responsibilities set forth in this Agreement.

         (d) PROTECTION OF PFPC.  PFPC shall be protected in any action it takes
or does not take in reliance upon  directions,  advice or Oral  Instructions  or
Written  Instructions  it receives from the Trust or from counsel and which PFPC
believes, in good faith, to be consistent with those directions,  advice or Oral
Instructions or Written Instructions. Nothing in this section shall be construed


                                    4

<PAGE>

so as to impose an obligation upon PFPC (i) to seek such  directions,  advice or
Oral  Instructions  or Written  Instructions,  or (ii) to act in accordance with
such directions,  advice or Oral  Instructions or Written  Instructions  unless,
under the terms of other  provisions of this Agreement,  the same is a condition
of PFPC's properly taking or not taking such action.  Nothing in this subsection
shall  excuse PFPC when an action or  omission  on the part of PFPC  constitutes
willful misfeasance,  bad faith, negligence or reckless disregard by PFPC of any
duties, obligations or responsibilities set forth in this Agreement.

         7.  RECORDS;  VISITS.  PFPC shall  prepare and maintain in complete and
accurate form all books and records necessary for it to serve as transfer agent,
registrar,  dividend  disbursing  agent  and  related  services  agent  to  each
Portfolio,  including  (a)  all  those  records  required  to  be  prepared  and
maintained by the Trust under the 1940 Act, by other applicable Securities Laws,
rules and  regulations  and by state laws and (b) such books and  records as are
necessary  for PFPC to perform all of the  services it agrees to provide in this
Agreement and the appendices  attached hereto,  including but not limited to the
books and records  necessary  to effect the  conversion  of Class B shares,  the
calculation  of any  contingent  deferred  sales charges and the  calculation of
front-end sales charges.  The books and records  pertaining to the Trust,  which
are in the possession or under the control of PFPC, shall be the property of the
Trust.  The Trust and  Authorized  Persons  shall have  access to such books and
records  in the  possession  or under the  control  of PFPC at all times  during
PFPC's normal business hours. Upon the reasonable  request of the Trust,  copies
of any such books and  records in the  possession  or under the  control of PFPC
shall  be  provided  by PFPC  to the  Trust  or to an  Authorized  Person.  Upon
reasonable  notice by the  Trust,  PFPC  shall  make  available  during  regular
business  hours its  facilities  and premises  employed in  connection  with its

                                       5
<PAGE>

performance of this Agreement for reasonable  visits by the Trust,  any agent or
person  designated by the Trust or any regulatory  agency having  authority over
the Trust.

         8. CONFIDENTIALITY. PFPC agrees to keep confidential all records of the
Trust and information  relating to the Trust and its shareholders (past, present
and future),  its investment adviser and its principal  underwriter,  unless the
release of such records or information is otherwise consented to, in writing, by
the Trust prior to its release.  The Trust agrees that such consent shall not be
unreasonably withheld and may not be withheld where PFPC may be exposed to civil
or criminal contempt proceedings or when required to divulge such information or
records to duly constituted authorities.

         9. COOPERATION WITH ACCOUNTANTS.  PFPC shall cooperate with the Trust's
independent  public  accountants  and shall take all  reasonable  actions in the
performance of its obligations under this Agreement to ensure that the necessary
information  is made available to such  accountants  for the expression of their
opinion, as required by the Trust.

         10.  DISASTER  RECOVERY.  PFPC shall  enter into and shall  maintain in
effect  with  appropriate  parties  one or  more  agreements  making  reasonable
provisions  for periodic  backup of computer  files and data with respect to the
Trust and emergency use of electronic data processing equipment. In the event of
equipment  failures,  PFPC shall,  at no additional  expense to the Trust,  take
reasonable steps to minimize service interruptions. PFPC shall have no liability
with  respect to the loss of data or service  interruptions  caused by equipment
failure,  provided such loss or interruption is not caused by PFPC's own willful
misfeasance,  bad  faith,  negligence  or  reckless  disregard  of its duties or
obligations  under this  Agreement  and provided  further that PFPC has complied
with the provisions of this paragraph 10.


                                       6
<PAGE>

         11. COMPENSATION.  As compensation for services rendered by PFPC during
the term of this  Agreement,  the Trust will pay to PFPC a fee or fees as may be
agreed  to  from  time  to  time  in  writing   by  the  Trust  and  PFPC.

         12.  INDEMNIFICATION.

         (a) The  Trust  agrees  to  indemnify  and hold  harmless  PFPC and its
affiliates from all taxes, charges, expenses, assessments, penalties, claims and
liabilities  (including,  without  limitation,  liabilities  arising  under  the
Securities  Laws and any state and  foreign  securities  and blue sky laws,  and
amendments thereto),  and expenses,  including (without  limitation)  reasonable
attorneys' fees and  disbursements,  arising directly or indirectly from (i) any
action  or  omission  to act  which  PFPC  takes  (a) at the  request  or on the
direction  of or in  reliance  on the  advice  of the  Trust  or (b)  upon  Oral
Instructions or Written  Instructions or (ii) the acceptance,  processing and/or
negotiation  of checks or other  methods  utilized  for the  purchase of Shares.
Neither  PFPC,  nor any of its  affiliates,  shall be  indemnified  against  any
liability (or any expenses incident to such liability)  arising out of PFPC's or
its  affiliates'  own willful  misfeasance,  bad faith,  negligence  or reckless
disregard  of its  duties and  obligations  under this  Agreement.  The  Trust's
liability to PFPC for PFPC's acceptance, processing and/or negotiation of checks
or other  methods  utilized  for the  purchase of Shares shall be limited to the
extent of the Trust's policy(ies) of insurance that provide for coverage of such
liability,  and the Trust's insurance  coverage shall take precedence.

         (b) PFPC  agrees to  indemnify  and hold  harmless  the Trust  from all
taxes, charges, expenses, assessments, penalties, claims and liabilities arising
from  PFPC's  obligations  pursuant  to  this  Agreement   (including,   without
limitation,  liabilities  arising under the  Securities  Laws, and any state and
foreign  securities  and blue sky laws,  and  amendments  thereto) and expenses,


                                       7
<PAGE>


including  (without  limitation)  reasonable  attorneys' fees and  disbursements
arising  directly  or  indirectly  out of PFPC's or its  nominee's  own  willful
misfeasance,  bad faith,  negligence  or  reckless  disregard  of its duties and
obligations  under  this  Agreement.

         (c) In order  that the  indemnification  provisions  contained  in this
Paragraph 12 shall apply,  upon the  assertion of a claim for which either party
may be required to indemnify the other, the party seeking  indemnification shall
promptly  notify  the other  party of such  assertion,  and shall keep the other
party advised with respect to all developments  concerning such claim. The party
who may be required to indemnify  shall have the option to participate  with the
party seeking  indemnification  in the defense of such claim.  The party seeking
indemnification shall in no case confess any claim or make any compromise in any
case in which the other party may be required  to  indemnify  it except with the
other party's prior written consent.

         (d)  The  members  of  the  Board  of  the  Trust,   its  officers  and
Shareholders,  or of  any  Portfolio  thereof,  shall  not  be  liable  for  any
obligations of the Trust, or any such Portfolio,  under this Agreement, and PFPC
agrees that in  asserting  any rights or claims under this  Agreement,  it shall
look only to the assets and property of the Trust or the particular Portfolio in
settlement  of such rights or claims and not to such  members of the Board,  its
officers  or  Shareholders.  PFPC  further  agrees that it will look only to the
assets and  property of a particular  Portfolio  of the Trust,  should the Trust
have established  separate series,  in asserting any rights or claims under this
Agreement  with respect to services  rendered with respect to that Portfolio and
will not seek to obtain  settlement  of such rights or claims from the assets of
any other Portfolio of the Trust.

         13.  INSURANCE.  PFPC shall maintain  insurance of the types and in the
amounts deemed by it to be appropriate. To the extent that policies of insurance
may provide for coverage of claims for liability or indemnity by the parties set
forth in this Agreement,  the contracts of insurance shall take precedence,  and


                                       8
<PAGE>

no provision of this  Agreement  shall be construed to relieve an insurer of any
obligation  to pay claims to the Trust,  PFPC or other insured party which would
otherwise be a covered claim in the absence of any provision of this  Agreement.

         14. SECURITY.

         (a) PFPC  represents  and warrants  that, to the best of its knowledge,
the various procedures and systems which PFPC has implemented with regard to the
safeguarding from loss or damage  attributable to fire, theft or any other cause
(including  provision  for  twenty-four  hours a day  restricted  access) of the
Trust's blank checks, certificates, records and other data and PFPC's equipment,
facilities  and  other  property  used  in the  performance  of its  obligations
hereunder are adequate,  and that it will make such changes therein from time to
time  as in  its  judgment  are  required  for  the  secure  performance  of its
obligations  hereunder.  PFPC shall  review  such  systems and  procedures  on a
periodic  basis,  and the Trust  shall have  reasonable  access to review  these
systems and  procedures.

         (b) PFPC further  represents  and warrants that any and all  electronic
data processing  systems and programs that it uses or retains in connection with
the  provision of services  hereunder on or before  January 1, 1999 will be year
2000 compliant.

         15. RESPONSIBILITY OF PFPC.

         (a) PFPC  shall be under no duty to take any  action  on  behalf of the
Trust except as specifically  set forth herein or as may be specifically  agreed
to by PFPC in writing. PFPC shall be obligated to exercise care and diligence in
the  performance  of its duties  hereunder,  to act in good faith and to use its
best efforts in  performing  services  provided for under this  Agreement.  PFPC
shall be liable for any  damages  arising  out of PFPC's  failure to perform its
duties  under this  Agreement  to the extent  such  damages  arise out of PFPC's


                                       9
<PAGE>

willful misfeasance, bad faith, negligence or reckless disregard of such duties.

         (b) Without  limiting the  generality  of the foregoing or of any other
provision of this  Agreement,  PFPC shall not be under any duty or obligation to
inquire  into and shall not be liable  for (A) the  validity  or  invalidity  or
authority or lack thereof of any Oral Instruction or Written Instruction, notice
or other  instrument  which  conforms  to the  applicable  requirements  of this
Agreement,  and which PFPC reasonably  believes to be genuine; or (B) subject to
Section  10,  delays  or  errors  or  loss  of  data   occurring  by  reason  of
circumstances  beyond  PFPC's  control,  including  acts of  civil  or  military
authority, national emergencies,  labor difficulties,  fire, flood, catastrophe,
acts of God, insurrection,  war, riots or failure of the mails,  transportation,
communication or power supply.

         (c) Notwithstanding anything in this Agreement to the contrary, neither
PFPC nor its  affiliates  shall be liable  to the  Trust for any  consequential,
special or indirect  losses or damages which the Trust may incur or suffer by or
as a  consequence  of  PFPC's or its  affiliates'  performance  of the  services
provided hereunder,  whether or not the likelihood of such losses or damages was
known by PFPC or its affiliates.

         (d)  Notwithstanding  anything in this  Agreement to the contrary,  the
Trust  shall  not be liable to PFPC nor its  affiliates  for any  consequential,
special or indirect  losses or damages which PFPC or its affiliates may incur or
suffer by or as a consequence  of PFPC's  performance  of the services  provided
hereunder,  whether or not the likelihood of such losses or damages was known by
the Trust.


                                       10
<PAGE>

         16. DESCRIPTION OF SERVICES.

         (a) Services Provided on an Ongoing Basis, If Applicable.

             (i)    Calculate   12b-1  payments  to  financial   intermediaries,
                    including   brokers,   and  financial   intermediary   trail
                    commissions;

             (ii)   Develop,  monitor and  maintain,  in  consultation  with the
                    Trust,  all systems  necessary to implement  and operate the
                    four-tier distribution system,  including Class B conversion
                    feature,  as described  in the  registration  statement  and
                    related  documents of the Trust, as they may be amended from
                    time to time;

             (iii)  Calculate  contingent  deferred  sales  charge  amounts upon
                    redemption  of Trust  shares and deduct  such  amounts  from
                    redemption proceeds;

             (iv)   Calculate  front-end  sales load amounts at time of purchase
                    of shares;

             (v)    Determine dates of Class B conversion and effect the same;

             (vi)   Establish and maintain proper shareholder registrations;

             (vii)  Review new applications and correspond with  shareholders to
                    complete or correct information;

             (viii) Direct payment processing of checks or wires;

             (ix)   Prepare and certify  stockholder  lists in conjunction  with
                    proxy solicitations;

             (x)    Prepare and mail to shareholders confirmation of activity;

             (xi)   Provide  toll-free  lines for direct  shareholder  use, plus
                    customer liaison staff for on-line inquiry response;

             (xii)  Send  duplicate  confirmations  to  broker-dealers  of their
                    clients'    activity,    whether    executed   through   the
                    broker-dealer or directly with PFPC;

             (xiii) Provide  periodic   shareholder  lists,   outstanding  share
                    calculations and related statistics to the Trust;

             (xiv)  Provide detailed data for underwriter/broker confirmations;


                                       11
<PAGE>



             (xv)   Prepare and mail required  calendar and taxable year-end tax
                    and  statement  information  (including  forms  1099-DIV and
                    1099-B and accompanying statements);

             (xvi)  Notify on a daily basis the investment  adviser,  accounting
                    agent, and custodian of activity in the Trust;

             (xvii) Perform,  itself or through a delegate, all of the services,
                    whether  or  not  included   within  the  scope  of  another
                    paragraph  of this  Paragraph  16(a),  specified  on Annex B
                    hereto; and

             (xviii)Perform  other   participating   broker-dealer   shareholder
                    services as may be agreed upon from time to time.

         (b)  SERVICES  PROVIDED  BY PFPC  UNDER  ORAL  INSTRUCTIONS  OR WRITTEN
INSTRUCTIONS.

             (i)    Accept  and  post  daily  Trust  and  class   purchases  and
                    redemptions;

             (ii)   Accept,   post  and  perform   shareholder   transfers   and
                    exchanges;

             (iii)  Pay dividends and other distributions;

             (iv)   Solicit and tabulate proxies; and

             (v)    Cancel certificates.

         (c)  PURCHASE  OF SHARES.  PFPC shall issue and credit an account of an
investor, in the manner described in the Trust's prospectus, once it receives:

             (i)    A purchase order;

             (ii)   Proper information to establish a shareholder account; and

             (iii)  Confirmation of receipt or crediting of funds for such order
                    to the Trust's custodian.

         (d)  REDEMPTION  OF  SHARES.  PFPC  shall  redeem  Shares  only if that
function  is properly  authorized  by the Trust's  organizational  documents  or
resolutions of the Trust's Board.  Shares shall be redeemed and payment therefor
shall be made in accordance with the Trust's or Portfolio's prospectus.


                                       12
<PAGE>

             (i)    BROKER-DEALER  ACCOUNTS.

                    When a broker-dealer  notifies PFPC of a redemption  desired
                    by a customer, and the Trust's or Portfolio's custodian (the
                    "Custodian")  has provided  PFPC with funds,  PFPC shall (a)
                    transfer by Fedwire or other  agreed upon  electronic  means
                    such redemption  payment to the broker-dealer for the credit
                    to, and for the  benefit of, the  customer's  account or (b)
                    shall   prepare   and  send  a   redemption   check  to  the
                    broker-dealer,  made payable to the  broker-dealer on behalf
                    of its  customer.

            (ii)    FUND-ONLY  ACCOUNTS.

                    If Shares (or  appropriate  instructions)  are  received  in
                    proper form, at the Trust's  request  Shares may be redeemed
                    before the funds are provided to PFPC from the Custodian. If
                    the recordholder  has not directed that redemption  proceeds
                    be wired,  when the Custodian  provides PFPC with funds, the
                    redemption  check  shall be sent to and made  payable to the
                    recordholder,  unless:

                    (a)  the surrendered certificate is drawn to the order of an
                         assignee or holder and transfer authorization is signed
                         by the recordholder; or

                    (b)  transfer  authorizations are signed by the recordholder
                         when Shares are held in book-entry form.

         (e)  DIVIDENDS AND  DISTRIBUTIONS.  Upon receipt of a resolution of the
Trust's  Board   authorizing  the  declaration  and  payment  of  dividends  and
distributions,  PFPC shall issue  dividends  and  distributions  declared by the
Trust  in  Shares,  or,  upon  shareholder  election,  pay  such  dividends  and
distributions in cash, if provided for in the appropriate Trust's or Portfolio's
prospectus.  Such issuance or payment,  as well as payments  upon  redemption as
described  above,  shall be made after  deduction  and  payment of the  required

                                       13
<PAGE>

amount of funds to be  withheld in  accordance  with any  applicable  tax law or
other laws,  rules or regulations.  PFPC shall mail to the Trust's  shareholders
and the IRS  and  other  appropriate  taxing  authorities  such  tax  forms,  or
permissible  substitute forms, and other  information  relating to dividends and
distributions  paid by the Trust  (including  designations  of the  portions  of
distributions of net capital gain that are 20% rate gain  distributions  and 28%
rate gain  distributions  pursuant  to IRS Notice  97-64) as are  required to be
filed and mailed by applicable law, rule or regulation  within the time required
thereby.  PFPC  shall  prepare,  maintain  and  file  with  the  IRS  and  other
appropriate  taxing  authorities  reports  relating  to all  dividends  above  a
stipulated  amount paid by the Trust to its  shareholders  as required by tax or
other law, rule or regulation.

         (f) SHAREHOLDER ACCOUNT SERVICES.

             (i)  PFPC will arrange,  in accordance with the appropriate Trust's
                  or  Portfolio's  prospectus,  for issuance of Shares  obtained
                  through:

                  -  The  transfer  of  funds  from  shareholders'  accounts  at
                     financial institutions, provided PFPC receives advance Oral
                     or Written Instruction of such transfer;

                  -  Any pre-authorized check plan; and

                  -  Direct  purchases  through  broker wire orders,  checks and
                     applications.

             (ii) PFPC will arrange,  in accordance with the appropriate Trust's
                  or Portfolio's prospectus, for a shareholder's:

                  -  Exchange  of Shares for  shares of another  fund with which
                     the Trust has exchange privileges;

                     Automatic redemption from an account where that shareholder
                     participates in a systematic withdrawal plan; and/or

                  -  Redemption  of Shares from an account  with a  checkwriting
                     privilege.


                                       14
<PAGE>

         (g) COMMUNICATIONS TO SHAREHOLDERS.  Upon timely Written  Instructions,
PFPC shall mail all communications by the Trust to its shareholders, including:

                  (i)    Reports to shareholders;

                  (ii)   Confirmations of purchases and sales of Trust shares;

                  (iii)  Monthly or quarterly statements;

                  (iv)   Dividend and distribution notices;

                  (v)    Proxy material; and

                  (vi)   Tax forms (including substitute forms) and accompanying
                         information  containing  the  information  required  by
                         paragraph 16(e).

         If  requested  by the Trust,  PFPC will  receive and tabulate the proxy
cards for the meetings of the Trust's shareholders and supply personnel to serve
as inspectors of election.

         (h)  RECORDS.  PFPC  shall  maintain  those  records  required  by  the
Securities Laws and any laws, rules and regulations of governmental  authorities
having jurisdiction with respect to the duties to be performed by PFPC hereunder
with respect to shareholder accounts or by transfer agents generally,  including
records of the accounts for each shareholder showing the following information:

                  (i)    Name, address and United States Taxpayer Identification
                         or Social Security number;

                  (ii)   Number and class of Shares held and number and class of
                         Shares  for  which  certificates,  if  any,  have  been
                         issued,     including     certificate    numbers    and
                         denominations;

                  (iii)  Historical  information  regarding  the account of each
                         shareholder,   including  dividends  and  distributions
                         paid,  their  character  (e.g.   ordinary  income,  net
                         capital  gain  (including  20%  rate  gain and 28% rate
                         gain),   exempt-interest,    foreign   tax-credit   and
                         dividends  received  deduction  eligible)  for  federal
                         income  tax  purposes  and the date and  price  for all
                         transactions on a shareholder's account;

                                       15
<PAGE>

                  (iv)   Any  stop  or   restraining   order  placed  against  a
                         shareholder's account;

                  (v)    Any correspondence  relating to the current maintenance
                         of a shareholder's account;

                  (vi)   Information with respect to withholdings; and

                  (vii)  Any  information  required  in order  for the  transfer
                         agent  to  perform  any  calculations  contemplated  or
                         required by this Agreement.

         (i) LOST OR STOLEN CERTIFICATES. PFPC shall place a stop notice against
any  certificate  reported to be lost or stolen and comply  with all  applicable
federal   regulatory   requirements   for   reporting   such  loss  or   alleged
misappropriation.   The  lost  or  stolen   certificate  will  be  canceled  and
uncertificated  Shares will be issued to a shareholder's  account only upon:

                  (i)    The  shareholder's  pledge of a lost instrument bond or
                         such  other  appropriate  indemnity  bond  issued  by a
                         surety company approved by PFPC; and

                  (ii)   Completion of a release and  indemnification  agreement
                         signed  by the  shareholder  to  protect  PFPC  and its
                         affiliates.

         (j)  SHAREHOLDER  INSPECTION OF STOCK RECORDS.  Upon a request from any
Trust shareholder to inspect stock records,  PFPC will notify the Trust, and the
Trust will issue instructions granting or denying each such request. Unless PFPC
has acted contrary to the Trust's instructions, the Trust agrees and does hereby
release  PFPC from any  liability  for refusal of  permission  for a  particular
shareholder to inspect the Trust's shareholder records.

         (k) WITHDRAWAL OF SHARES AND CANCELLATION OF CERTIFICATES. Upon receipt
of Written Instructions,  PFPC shall cancel outstanding certificates surrendered
by the Trust to reduce the total amount of  outstanding  shares by the number of
shares surrendered by the Trust.


                                       16
<PAGE>

         17.      DURATION AND TERMINATION.

         (a) This  Agreement  shall be effective on the date first written above
and shall  continue for a period of three (3) years (the "Initial  Term").  Upon
the expiration of the Initial Term, this Agreement shall automatically renew for
successive terms of one (1) year ("Renewal  Terms") each provided that it may be
terminated  by either party  during a Renewal Term upon written  notice given at
least ninety (90) days prior to  termination.  During either the Initial Term or
the Renewal  Terms,  this Agreement may also be terminated on an earlier date by
either party for cause.

         (b) With respect to the Trust,  cause includes,  but is not limited to,
(i) PFPC's material breach of this Agreement causing it to fail to substantially
perform its duties under this  Agreement.  In order for such material  breach to
constitute  "cause" under this Paragraph,  PFPC must receive written notice from
the Trust  specifying the material breach and PFPC shall not have corrected such
breach within a 15-day period; (ii) financial  difficulties of PFPC evidenced by
the authorization or commencement of a voluntary or involuntary bankruptcy under
the U.S.  Bankruptcy Code or any applicable  bankruptcy or similar law, or under
any  applicable  law  of  any  jurisdiction   relating  to  the  liquidation  or
reorganization  of debt, the appointment of a receiver or to the modification or
alleviation of the rights of creditors;  and (iii) issuance of an administrative
or court order  against  PFPC with regard to the  material  violation or alleged
material  violation of the Securities  Laws or other  applicable laws related to
its business of performing transfer agency services;

         (c) With respect to PFPC,  cause  includes,  but is not limited to, the
failure of the Trust to pay the  compensation  set forth in writing  pursuant to
Paragraph 11 of this Agreement.


                                       17
<PAGE>

         (d)  Any  notice  of   termination   for  cause  in   conformity   with
subparagraphs  (a),  (b)  and (c ) of  this  Paragraph  by the  Trust  shall  be
effective  thirty  (30) days  from the date of any such  notice.  Any  notice of
termination  for cause by PFPC shall be  effective 90 days from the date of such
notice.

         (e) Upon the  termination  hereof,  the  Trust  shall  pay to PFPC such
compensation as may be due for the period prior to the date of such termination.
In the event that the Trust designates a successor to any of PFPC's  obligations
under this  Agreement,  PFPC shall,  at the  direction and expense of the Trust,
transfer  to  such  successor  all  relevant  books,   records  and  other  data
established or maintained by PFPC hereunder  including,  a certified list of the
shareholders of the Trust or any Portfolio  thereof with name,  address,  and if
provided,  taxpayer  identification  or Social Security  number,  and a complete
record of the  account  of each  shareholder.  To the  extent  that PFPC  incurs
expenses related to a transfer of  responsibilities  to a successor,  other than
expenses involved in PFPC's providing the Trust's books and records described in
the  preceding  sentence  to  the  successors,  PFPC  shall  be  entitled  to be
reimbursed for such extraordinary expenses, including any out-of-pocket expenses
reasonably incurred by PFPC in connection with the transfer.

         (f) Any  termination  effected  pursuant  to this  Paragraph  shall not
affect the rights and obligations of the parties under Paragraph 12 hereof.

         (g) Notwithstanding the foregoing,  this Agreement shall terminate with
respect to the Trust or any Portfolio  thereof upon the liquidation,  merger, or
other  dissolution of the Trust or Portfolio or upon the Trust's ceasing to be a
registered investment company.

         18.  REGISTRATION  AS A  TRANSFER  AGENT.  PFPC  represents  that it is
currently registered with the appropriate federal agency for the registration of


                                       18
<PAGE>

transfer  agents,  or is otherwise  permitted to lawfully conduct its activities
without such  registration  and that it will remain so  registered or able to so
conduct such activities for the duration of this Agreement.  PFPC agrees that it
will promptly notify the Trust in the event of any material change in its status
as a registered  transfer agent.  Should PFPC fail to be registered with the SEC
as a transfer  agent at any time  during  this  Agreement,  and such  failure to
register does not permit PFPC to lawfully conduct its activities, the Trust may,
on written  notice to PFPC,  terminate  this  Agreement  upon five days  written
notice to PFPC.

         19. NOTICES.  All notices and other  communications,  including Written
Instructions,  shall be in writing or by confirming  telegram,  cable,  telex or
facsimile  sending  device.  Notices  shall be addressed  (a) if to PFPC, at 400
Bellevue  Parkway,  Wilmington,  Delaware  19809;  (b) if to the  Trust,  at the
address  of the  Trust or (c) if to  neither  of the  foregoing,  at such  other
address as shall have been given by like notice to the sender of any such notice
or other  communication  by the other  party.  If  notice is sent by  confirming
telegram,  cable,  telex or facsimile  sending  device during  regular  business
hours,  it shall be  deemed to have been  given  immediately;  if sent at a time
other than  regular  business  hours,  such notice  shall be deemed to have been
given at the opening of the next business day. If notice is sent by  first-class
mail, it shall be deemed to have been given three days after it has been mailed.
If notice is sent by messenger, it shall be deemed to have been given on the day
it is delivered.  All postage,  cable,  telegram,  telex and  facsimile  sending
device charges  arising from the sending of a notice  hereunder shall be paid by
the sender.

         20. AMENDMENTS.  This Agreement, or any term thereof, may be changed or
waived only by a written amendment, signed by the party against whom enforcement
of such change or waiver is sought.


<PAGE>

         21. ADDITIONAL PORTFOLIOS.  In the event that the Trust establishes one
or more investment series in addition to and with respect to which it desires to
have PFPC render  services as transfer  agent,  registrar,  dividend  disbursing
agent and related services agent under the terms set forth in this Agreement, it
shall so notify PFPC in writing, and PFPC shall agree in writing to provide such
services, and such investment series shall become a Portfolio hereunder, subject
to such additional terms, fees and conditions as are agreed to by the parties.

         22. DELEGATION; ASSIGNMENT.

         (a) PFPC may, at its own  expense,  assign its rights and  delegate its
duties hereunder to any wholly-owned  direct or indirect subsidiary of PNC Bank,
National  Association or PNC Bank Corp.,  provided that (i) PFPC gives the Trust
thirty (30) days' prior written notice;  (ii) the delegate (or assignee)  agrees
with PFPC and the Trust to comply with all relevant provisions of the Securities
Laws;  and (iii) PFPC and such  delegate  (or  assignee)  promptly  provide such
information as the Trust may request, and respond to such questions as the Trust
may  ask,  relative  to  the  delegation  (or  assignment),  including  (without
limitation) the  capabilities of the delegate (or assignee).  The assignment and
delegation of any of PFPC's duties under this subparagraph (a) shall not relieve
PFPC of any of its responsibilities or liabilities under this Agreement.

         (b) PFPC may delegate to  PaineWebber  Incorporated  its  obligation to
perform the services  described on Annex B hereto. In addition,  PFPC may assign
its rights and delegate its other duties  hereunder to PaineWebber  Incorporated
or Mitchell  Hutchins Asset  Management Inc. or an affiliated  person of either,
provided that (I) PFPC gives the Trust thirty (30) days' prior  written  notice;
(ii) the  delegate (or  assignee)  agrees with PFPC and the Trust to comply with
all relevant provisions of the Securities Laws; and (iii) PFPC and such delegate

                                       20
<PAGE>

(or assignee)  promptly provide such  information as the Trust may request,  and
respond to such  questions as the Trust may ask,  relative to the delegation (or
assignment), including (without limitation) the capabilities of the delegate (or
assignee).  In  assigning  its  rights  and  delegating  its  duties  under this
paragraph,  PFPC may impose such  conditions  or  limitations  as it  determines
appropriate  including  the  condition  that PFPC be retained as a  sub-transfer
agent.

         (c) In the event that PFPC assigns its rights and  delegates its duties
under this  section,  no amendment of the terms of this  Agreement  shall become
effective without the written consent of PFPC.

         23.  COUNTERPARTS.  This  Agreement  may be  executed  in  two or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.

         24. FURTHER ACTIONS. Each party agrees to perform such further acts and
execute such  further  documents as are  necessary  to  effectuate  the purposes
hereof.

         25. MISCELLANEOUS.

         (a) ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
understanding  between the  parties  and  supersedes  all prior  agreements  and
understandings  relating to the subject matter hereof, provided that the parties
may embody in one or more  separate  documents  their  agreement,  if any,  with
respect to services to be performed and fees payable under this Agreement.

         (b)  CAPTIONS.   The  captions  in  this  Agreement  are  included  for
convenience  of  reference  only  and in no way  define  or  delimit  any of the
provisions hereof or otherwise affect their construction or effect.



                                       21
<PAGE>

         (c) GOVERNING LAW. This Agreement shall be deemed to be a contract made
in Delaware  and  governed by Delaware  law,  without  regard to  principles  of
conflicts of law.

         (d) PARTIAL  INVALIDITY.  If any provision of this  Agreement  shall be
held or made  invalid  by a court  decision,  statute,  rule or  otherwise,  the
remainder of this Agreement shall not be affected thereby.

         (e)  SUCCESSORS AND ASSIGNS.  This Agreement  shall be binding upon and
shall inure to the benefit of the parties hereto and their respective successors
and permitted assigns.

         (f) FACSIMILE SIGNATURES.  The facsimile signature of any party to this
Agreement shall constitute the valid and binding execution hereof by such party.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the day and year first above written.

                                     PFPC INC.

                                     By:
                                        ----------------------------------------

                                     Title:


                                     MITCHELL HUTCHINS SECURITIES TRUST

                                     By:
                                        ----------------------------------------

                                     Title:



                                       22
<PAGE>


                                     ANNEX A

                                   Portfolios

PaineWebber Enhanced S&P 500 Fund

PaineWebber Enhanced Nasdaq-100 Fund








                                       23
<PAGE>


                           AUTHORIZED PERSONS APPENDIX


NAME (TYPE)                                          SIGNATURE


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

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

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

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

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

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

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



                                       24

<PAGE>


                                     ANNEX B


a.       Establish  and  maintain a dedicated  service  center  with  sufficient
         facilities,  equipment and skilled personnel to address all shareholder
         inquiries received by telephone,  mail or in-person regarding the Funds
         and their accounts

b.       Provide timely  execution of redemptions,  exchanges and  non-financial
         transactions   directed  to  investment   executives  and  specifically
         requested by Trust shareholders

c.       Issue checks from proceeds of Trust share  redemptions to  shareholders
         as directed by the shareholders or their agents

d.       Process and maintain shareholder account registration information

e.       With  respect  to  customer  accounts  maintained  through  PaineWebber
         Incorporated  ("PaineWebber"),  review new  applications and correspond
         with shareholders to complete or correct information

f.       Prepare and mail monthly or quarterly  consolidated  account statements
         that reflect  PaineWebber  Mutual Fund balances and transactions  (such
         information  to  be  combined  with  other  activity  and  holdings  in
         investors'  brokerage  accounts if this  responsibility is delegated to
         PaineWebber)

g.       Establish  and  maintain a dedicated  service  center  with  sufficient
         facilities,  equipment  and  skilled  personnel  to address  all branch
         inquiries regarding operational issues and performance

h.       Capture,  process and mail required tax information to shareholders and
         report this information to the Internal Revenue Service

i.       Provide the capability to margin  PaineWebber  Mutual Funds held within
         the client's brokerage account (if this  responsibility is delegated to
         PaineWebber)

j.       Prepare and provide  shareholder  registrations for mailing of proxies,
         reports and other communications to shareholders

k.       Develop,  maintain  and issue  checks from the  PaineWebber  systematic
         withdrawal plan offered within the client's  brokerage account (if this
         responsibility is delegated to PaineWebber)

l.       Maintain duplicate shareholder records and reconcile those records with
         those at the  transfer  agent (if this  responsibility  is delegated to
         PaineWebber)


                                       25
<PAGE>


m.       Process and mail duplicate  PaineWebber monthly or quarterly statements
         to PaineWebber Investment Executives

n.       Establish and maintain shareholder distribution options (i.e., election
         to have dividends paid in cash, rather than reinvested in Trust shares)

o.       Process and mail  purchase,  redemption and exchange  confirmations  to
         Trust shareholders and PaineWebber Investment Executives

p.       Issue dividend checks to shareholders that select cash distributions to
         their  brokerage  account  (if  this  responsibility  is  delegated  to
         PaineWebber)

q.       Develop and maintain the automatic  investment  plan offered within the
         client's  brokerage  account (if this  responsibility  is  delegated to
         PaineWebber)

r.       Provide bank-to-bank wire transfer capabilities related to transactions
         in Trust shares


                                       25A
<PAGE>



                                                                   Exhibit No. 9

                          KIRKPATRICK & LOCKHART LLP
                       1800 MASSACHUSETTS AVENUE, N.W.
                                  2ND FLOOR
                         WASHINGTON, D.C. 20036-1800
                            TELEPHONE 202-778-9000
                            FACSIMILE 202-778-9100
                                  WWW.KL.COM

                                March 7, 2000

Mitchell Hutchins Securities Trust
51 West 52nd Street
New York, New York 10019-6114

Ladies and Gentlemen:

      You have requested our opinion, as counsel to Mitchell Hutchins Securities
Trust ("Trust"),  as to certain matters regarding the issuance of certain Shares
of the Trust. As used in this letter, the term "Shares" means the Class A, Class
B, Class C and Class Y shares of beneficial  interest of the series of the Trust
listed below that may be issued during the time that Pre-Effective Amendment No.
3 to the Trust's  Registration  Statement on Form N-1A ("PEA") is effective  and
has not been superseded by a post-effective  amendment.  The series of the Trust
are PaineWebber Enhanced S&P 500 Fund and PaineWebber Enhanced Nasdaq- 100 Fund.

      As such counsel,  we have examined certified or other copies,  believed by
us to be  genuine,  of  the  Trust's  Trust  Instrument  and  by-laws  and  such
resolutions  and minutes of meetings of the Trust's Board of Trustees as we have
deemed relevant to our opinion,  as set forth herein.  Our opinion is limited to
the laws and facts in existence on the date hereof, and it is further limited to
the laws (other than the conflict of law rules) of the State of Delaware that in
our experience  are normally  applicable to the issuance of shares by investment
companies  organized as business  trusts in that State and to the Securities Act
of 1933 ("1933 Act"),  the  Investment  Company Act of 1940 ("1940 Act") and the
regulations of the Securities and Exchange Commission ("SEC") thereunder.

      Based on the  foregoing,  we are of the opinion  that the  issuance of the
Shares has been duly  authorized by the Trust and that,  when sold in accordance
with the terms  contemplated by the PEA,  including receipt by the Trust of full
payment for the Shares and  compliance  with the 1933 Act and the 1940 Act,  the
Shares will have been validly issued, fully paid and non-assessable.

      We hereby  consent to this opinion  accompanying  the PEA when it is filed
with the SEC and to the  reference to our firm in the  statement  of  additional
information that is being filed as part of the PEA.



                                    Very truly yours,



                                    /s/ Kirkpatrick & Lockhart LLP
                                    ------------------------------
                                    KIRKPATRICK & LOCKHART LLP



                                       26



                                                                  Exhibit No. 10


                        CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Auditors" and to the
use of our report on PaineWebber Enhanced S&P 500 Fund and PaineWebber Enhanced
Nasdaq-100 Fund dated March 1, 2000, in this Registration Statement (Form N-1A
No. 333-94065) of Mitchell Hutchins Securities Trust.



                                             /s/ Ernst & Young LLP
                                             ---------------------
                                             ERNST & YOUNG LLP


New York, New York
March 1, 2000



                                                                  Exhibit No. 12

                     MITCHELL HUTCHINS ASSET MANAGEMENT INC.
                               51 WEST 52ND STREET
                          NEW YORK, NEW YORK 10019-6114





                                  March 7, 2000


Mitchell Hutchins Securities Trust
51 West 52nd Street
New York, New York 10019-6114

Ladies and Gentlemen:

      We are writing in connection  with the 1,250 Class A, 1,250 Class B, 1,250
Class C and 1,250 Class Y shares of beneficial  interest of each of  PaineWebber
Enhanced  S&P 500 Fund and  PaineWebber  Enhanced  Nasdaq-100  Fund that we have
purchased  from you at a price of $10.00 per  share.  This is to advise you that
these shares were  purchased for  investment  only with no present  intention of
selling  these  shares,  and we do not how have any  intention  of  selling  the
shares.

                                   Sincerely yours,

                                   /s/ Dianne E. O'Donnell

                                   Dianne E. O'Donnell
                                   Senior Vice President and
                                   Deputy General Counsel





                                                                 Exhibit (13)(a)

              MITCHELL HUTCHINS SECURITIES TRUST -- CLASS A SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940


         WHEREAS,  Mitchell  Hutchins  Securities  Trust ("Trust") is registered
under the  Investment  Company  Act of 1940,  as  amended  ("1940  Act"),  as an
open-end management investment company, and currently has two distinct series of
shares  of  beneficial  interest   ("Series"),   which  correspond  to  distinct
portfolios  and have been  designated as  PaineWebber  Enhanced S&P 500 Fund and
PaineWebber Enhanced Nasdaq-100 Fund; and

      WHEREAS, the Trust desires to adopt a Plan of Distribution ("Plan")
pursuant to Rule 12b-1 under the 1940 Act with respect to the Class A shares of
the above-referenced Series and of such other Series as may hereafter be
designated by the Trust's board of trustees ("Board") and have Class A shares
established; and

      WHEREAS, the Trust has entered into a Distribution Contract ("Contract")
with Mitchell Hutchins Asset Management Inc. ("Mitchell Hutchins") pursuant to
which Mitchell Hutchins has agreed to serve as Distributor of the Class A shares
of each such Series;

      NOW, THEREFORE, the Trust hereby adopts this Plan with respect to the
Class A shares of each Series in accordance with Rule 12b-1 under the 1940 Act.

      1. A. Each Series is authorized to pay to Mitchell Hutchins, as
compensation for Mitchell Hutchins' services as Distributor of the Series' Class
A shares, a service fee at the rate of 0.25% on an annualized basis of the
average daily net assets of the Series' Class A shares. Such fee shall be
calculated and accrued daily and paid monthly or at such other intervals as the
Board shall determine.

          B. Any Series may pay a service fee to Mitchell Hutchins at a lesser
rate than the fee specified in Paragraph 1A of this Plan, as agreed upon by the
Board and Mitchell Hutchins and as approved in the manner specified in Paragraph
4 of this Plan.

      2. As Distributor of the Class A shares of each Series, Mitchell Hutchins
may spend such amounts as it deems appropriate on any activities or expenses
primarily intended to result in the sale of the Class A shares of the Series or
the servicing and maintenance of shareholder accounts, including, but not
limited to, compensation to employees of Mitchell Hutchins; compensation to and
expenses, including overhead and telephone and other communication expenses, of
Mitchell Hutchins, PaineWebber Incorporated ("PaineWebber") and other selected
dealers who engage in or support the distribution of shares or who service
shareholder accounts; the printing of prospectuses, statements of additional
information, and reports for other than existing shareholders; and the
preparation, printing and distribution of sales literature and advertising
materials.


<PAGE>


      3. If adopted with respect to Class A shares of a Series after any public
offering of those shares, this Plan shall not take effect with respect to those
shares unless it has first been approved by a vote of a majority of the voting
securities of the Class A shares of that Series. This provision does not apply
to adoption as an amended Plan of Distribution where the prior Plan of
Distribution either was approved by a vote of a majority of the voting
securities of the Class A shares of the applicable Series or such approval was
not required under Rule 12b-1.

      4. This Plan shall not take effect with respect to the Class A shares of
any Series unless it first has been approved, together with any related
agreements, by votes of a majority of both (a) the Board and (b) those Board
members of the Trust who are not "interested persons" of the Trust and have no
direct or indirect financial interest in the operation of this Plan or any
agreements related thereto ("Independent Board members"), cast in person at a
meeting (or meetings) called for the purpose of voting on such approval; and
until the Board members who approve the Plan's taking effect with respect to
such Series' Class A shares have reached the conclusion required by Rule
12b-1(e) under the 1940 Act.

      5. After approval as set forth in Paragraph 3 (if applicable) and
Paragraph 4, this Plan shall take effect and continue in full force and effect
for so long as such continuance is specifically approved at least annually in
the manner provided for approval of this Plan in Paragraph 4.

      6. Mitchell Hutchins shall provide to the Board and the Board shall
review, at least quarterly, a written report of the amounts expended with
respect to the Class A shares of each Series by Mitchell Hutchins under this
Plan and the Contract and the purposes for which such expenditures were made.
Mitchell Hutchins shall submit only information regarding amounts expended for
"service activities," as defined in this Paragraph 6, to the Board in support of
the service fee payable hereunder.

          For purposes of this Plan, "service activities" shall mean
activities in connection with the provision by Mitchell Hutchins or PaineWebber
of personal, continuing services to investors in the Class A shares of the
Series; provided, however, that if the National Association of Securities
Dealers, Inc. ("NASD") adopts a definition of "service fee" for purposes of
Section 2830(b)(9) of the NASD Conduct Rules that differs from the definition of
"service activities" hereunder, or if the NASD adopts a related definition
intended to define the same concept, the definition of "service activities" in
this Paragraph shall be automatically amended, without further action of the
parties, to conform to such NASD definition. Overhead and other expenses of
Mitchell Hutchins and PaineWebber related to their "service activities,"
including telephone and other communications expenses, may be included in the
information regarding amounts expended for such activities.

      7. This Plan may be terminated with respect to the Class A shares of any
Series at any time by vote of the Board, by vote of a majority of the
Independent Board members, or by vote of a majority of the outstanding voting
securities of the Class A shares of that Series.

      8. This Plan may not be amended to increase materially the amount of
service fees provided for in Paragraph 1A hereof unless such amendment is
approved by a majority of the outstanding voting securities of the Class A


                                      -2-
<PAGE>

shares of each Series, and no material amendment to the Plan shall be made
unless approved in the manner provided for initial approval in Paragraph 4
hereof.

      9. The amount of the service fees payable by any Series to Mitchell
Hutchins under Paragraph 1A hereof and the Contract is not related directly to
expenses incurred by Mitchell Hutchins on behalf of such Series in serving as
Distributor of the Class A shares, and Paragraph 2 hereof and the Contract do
not obligate the Series to reimburse Mitchell Hutchins for such expenses. The
service fees set forth in Paragraph 1A hereof will be paid by the Series to
Mitchell Hutchins until either the Plan or the Contract is terminated or not
renewed. If either the Plan or the Contract is terminated or not renewed with
respect to the Class A shares of any Series, any service-related expenses
incurred by Mitchell Hutchins on behalf of the Class A shares of the Series in
excess of payments of the service fees specified in Paragraph 1A hereof and the
Contract which Mitchell Hutchins has received or accrued through the termination
date are the sole responsibility and liability of Mitchell Hutchins, and are not
obligations of the Series.

      10. While this Plan is in effect, the selection and nomination of the
Board members who are not interested persons of the Trust shall be committed to
the discretion of the Board members who are not interested persons of the Trust.

      11. As used in this Plan, the terms "majority of the outstanding voting
securities" and "interested person" shall have the same meaning as those terms
have in the 1940 Act.

      12. The Trust shall preserve copies of this Plan (including any amendments
thereto) and any related agreements and all reports made pursuant to Paragraph 6
hereof for a period of not less than six years from the date of this Plan, the
first two years in an easily accessible place.

      13. The Board members of the Trust and the shareholders of each Series
shall not be liable for any obligations of the Trust or any Series under this
Plan, and Mitchell Hutchins or any other person, in asserting any rights or
claims under this Plan, shall look only to the assets and property of the Trust
or such Series in settlement of such right or claim, and not to such Board
members or shareholders.

      IN WITNESS WHEREOF, the Trust has executed this Plan of Distribution on
the day and year set forth below in New York, New York.

Date:  __________, 2000

ATTEST:                             MITCHELL HUTCHINS SECURITIES TRUST


   --------------------             By:
                                       --------------------------------













                                      -3-



                                                                 Exhibit (13)(b)

              MITCHELL HUTCHINS SECURITIES TRUST -- CLASS B SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940


         WHEREAS,  Mitchell  Hutchins  Securities  Trust ("Trust") is registered
under the  Investment  Company  Act of 1940,  as  amended  ("1940  Act"),  as an
open-end management investment company, and currently has two distinct series of
shares  of  beneficial  interest   ("Series"),   which  correspond  to  distinct
portfolios  and have been  designated as  PaineWebber  Enhanced S&P 500 Fund and
PaineWebber Enhanced Nasdaq-100 Fund; and

      WHEREAS, the Trust desires to adopt a Plan of Distribution ("Plan")
pursuant to Rule 12b-1 under the 1940 Act with respect to the Class B shares of
the above-referenced Series and of such other Series as may hereafter be
designated by the Trust's board of trustees ("Board") and have Class B shares
established; and

      WHEREAS the Trust has entered into a Distribution Contract ("Contract")
with Mitchell Hutchins Asset Management Inc. ("Mitchell Hutchins") pursuant to
which Mitchell Hutchins has agreed to serve as Distributor of the Class B shares
of each such Series;

      NOW, THEREFORE, the Trust hereby adopts this Plan with respect to the
Class B shares of each Series in accordance with Rule 12b-1 under the 1940 Act.

      1. A.  PaineWebber  Enhanced S&P 500 Fund is authorized to pay to Mitchell
Hutchins,  as compensation for Mitchell Hutchins' services as Distributor of the
Series' Class B shares, distribution fees at the rate of 0.40%, on an annualized
basis, of the average daily net assets of the Series' Class B shares.  Such fees
shall be  calculated  and  accrued  daily  and  paid  monthly  or at such  other
intervals as the Board shall determine.

         B. Each other Series is authorized to pay to Mitchell Hutchins, as
compensation for Mitchell Hutchins' services as Distributor of the Series' Class
B shares, distribution fees at the rate of 0.75%, on an annualized basis, of the
average daily net assets of the Series' Class B shares or such other rate as may
be agreed upon in a written distribution fee addendum to this Plan
("Distribution Fee Addendum") executed by the Trust on behalf of such Series.
All such Distribution Fee Addenda shall provide that they are subject to all
terms and conditions of this Plan. Such fees shall be calculated and accrued
daily and paid monthly or at such other intervals as the Board shall determine.

         C. Each Series is authorized to pay to Mitchell Hutchins, as
compensation for Mitchell Hutchins' services as Distributor of the Series' Class
B shares, a service fee at the rate of 0.25%, on an annualized basis, of the
average daily net assets of the Series' Class B shares. Such fee shall be
calculated and accrued daily and paid monthly or at such other intervals as the
Board shall determine.


<PAGE>

            D. Any Series may pay a distribution or service fee to Mitchell
Hutchins at a lesser rate than the fees specified above, as agreed upon by the
Board and Mitchell Hutchins and as approved in the manner specified in Paragraph
4 of this Plan.

      2. As Distributor of the Class B shares of each Series, Mitchell Hutchins
may spend such amounts as it deems appropriate on any activities or expenses
primarily intended to result in the sale of the Class B shares of the Series or
the servicing and maintenance of shareholder accounts, including, but not
limited to, compensation to employees of Mitchell Hutchins; compensation to and
expenses, including overhead and telephone and other communication expenses, of
Mitchell Hutchins, PaineWebber Incorporated ("PaineWebber") and other selected
dealers who engage in or support the distribution of shares or who service
shareholder accounts; the printing of prospectuses, statements of additional
information, and reports for other than existing shareholders; and the
preparation, printing and distribution of sales literature and advertising
materials.

      3. If adopted with respect to Class B shares of a Series after any public
offering of those shares, this Plan shall not take effect with respect to those
shares unless it has first been approved by a majority of the voting securities
of the Class B shares of that Series. This provision does not apply to adoption
as an amended Plan of Distribution where the prior Plan of Distribution either
was approved by a majority of the voting securities of the Class B shares of the
applicable Series or such approval was not required under Rule 12b-1.

      4. This Plan shall not take effect with respect to the Class B shares of
any Series unless it first has been approved, together with any related
agreements, by votes of a majority of both (a) the Board and (b) those Board
members of the Trust who are not "interested persons" of the Trust and have no
direct or indirect financial interest in the operation of this Plan or any
agreements related thereto ("Independent Board members"), cast in person at a
meeting (or meetings) called for the purpose of voting on such approval; and
until the Board members who approve the Plan's taking effect with respect to
such Series' Class B shares have reached the conclusion required by Rule
12b-1(e) under the 1940 Act.

      5. After approval as set forth in Paragraph 3 (if applicable) and
Paragraph 4, this Plan shall take effect and continue in full force and effect
for so long as such continuance is specifically approved at least annually in
the manner provided for approval of this Plan in Paragraph 4.

      6. Mitchell Hutchins shall provide to the Board and the Board shall
review, at least quarterly, a written report of the amounts expended with
respect to the Class B shares of each Series by Mitchell Hutchins under this
Plan and the Contract and the purposes for which such expenditures were made.
Mitchell Hutchins shall submit only information regarding amounts expended for
"distribution activities," as defined in this Paragraph 6, to the Board in
support of the distribution fee payable hereunder and shall submit only
information regarding amounts expended for "service activities," as defined in
this Paragraph 6, to the Board in support of the service fee payable hereunder.



                                      -2-
<PAGE>

            For purposes of this Plan, "distribution activities" shall mean any
activities in connection with Mitchell Hutchins' performance of its obligations
under this Plan or the Contract that are not deemed "service activities."
"Service activities" shall mean activities in connection with the provision by
Mitchell Hutchins or PaineWebber of personal, continuing services to investors
in the Class B shares of the Series; provided, however, that if the National
Association of Securities Dealers, Inc. ("NASD") adopts a definition of "service
fee" for purposes of Section 2830(b)(9) of the NASD Conduct Rules that differs
from the definition of "service activities" hereunder, or if the NASD adopts a
related definition intended to define the same concept, the definition of
"service activities" in this Paragraph shall be automatically amended, without
further action of the parties, to conform to such NASD definition. Overhead and
other expenses of Mitchell Hutchins and PaineWebber related to their
"distribution activities" or "service activities," including telephone and other
communications expenses, may be included in the information regarding amounts
expended for such activities.

      7. This Plan may be terminated with respect to the Class B shares of any
Series at any time by vote of the Board, by vote of a majority of the
Independent Board members, or by vote of a majority of the outstanding voting
securities of the Class B shares of that Series.

      8. This Plan may not be amended to increase materially the amount of
distribution fees provided for in Paragraphs 1A or 1B or the amount of service
fees provided for in Paragraph 1C hereof unless such amendment is approved by a
majority of the outstanding voting securities of the Class B shares of the
affected Series and no material amendment to the Plan shall be made unless
approved in the manner provided for initial approval in Paragraph 4 hereof.

      9. The amount of the distribution and service fees payable by any Series
to Mitchell Hutchins under Paragraphs 1A, 1B and 1C hereof and the Contract is
not related directly to expenses incurred by Mitchell Hutchins on behalf of such
Series in serving as Distributor of the Class B shares, and Paragraph 2 hereof
and the Contract do not obligate the Series to reimburse Mitchell Hutchins for
such expenses. The distribution and service fees set forth in Paragraphs 1A, 1B
and 1C hereof will be paid by the Series to Mitchell Hutchins until either the
Plan or the Contract is terminated or not renewed. If either the Plan or the
Contract is terminated or not renewed with respect to the Class B shares of any
Series, any distribution expenses incurred by Mitchell Hutchins on behalf of the
Class B shares of the Series in excess of payments of the distribution and
service fees specified in Paragraphs 1A, 1B and 1C hereof and the Contract which
Mitchell Hutchins has received or accrued through the termination date are the
sole responsibility and liability of Mitchell Hutchins, and are not obligations
of the Series.

      10. While this Plan is in effect, the selection and nomination of the
Board members who are not interested persons of the Trust shall be committed to
the discretion of the Board members who are not interested persons of the Trust.

      11. As used in this Plan, the terms "majority of the outstanding voting
securities" and "interested person" shall have the same meaning as those terms
have in the 1940 Act.



                                      -3-
<PAGE>

      12. The Trust shall preserve copies of this Plan (including any amendments
thereto) and any related agreements and all reports made pursuant to Paragraph 6
hereof for a period of not less than six years from the date of this Plan, the
first two years in an easily accessible place.

      13. The Board members of the Trust and the shareholders of each Series
shall not be liable for any obligations of the Trust or any Series under this
Plan, and Mitchell Hutchins or any other person, in asserting any rights or
claims under this Plan, shall look only to the assets and property of the Trust
or such Series in settlement of such right or claim, and not to such Board
members or shareholders.

            IN WITNESS WHEREOF, the Trust has executed this Plan of Distribution
on the day and year set forth below in New York, New York.

Date:  _______________, 2000

ATTEST:                             MITCHELL HUTCHINS SECURITIES TRUST


   --------------------             By:
                                       --------------------------------














                                      -4-



                                                                 Exhibit (13)(c)

              MITCHELL HUTCHINS SECURITIES TRUST -- CLASS C SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940


         WHEREAS,  Mitchell  Hutchins  Securities  Trust ("Trust") is registered
under the  Investment  Company  Act of 1940,  as  amended  ("1940  Act"),  as an
open-end management investment company, and currently has two distinct series of
shares  of  beneficial  interest   ("Series"),   which  correspond  to  distinct
portfolios  and have been  designated as  PaineWebber  Enhanced S&P 500 Fund and
PaineWebber Enhanced Nasdaq-100 Fund; and

         WHEREAS,  the Trust  desires to adopt a Plan of  Distribution  ("Plan")
pursuant to Rule 12b-1 under the 1940 Act with  respect to the Class C shares of
the  above-referenced  Series  and of such  other  Series  as may  hereafter  be
designated  by the Trust's  board of trustees  ("Board") and have Class C shares
established; and

         WHEREAS,   the  Trust  has  entered   into  a   Distribution   Contract
("Contract") with Mitchell Hutchins Asset Management Inc. ("Mitchell  Hutchins")
pursuant to which  Mitchell  Hutchins has agreed to serve as  Distributor of the
Class C shares of each such Series;

         NOW,  THEREFORE,  the Trust hereby adopts this Plan with respect to the
Class C shares of each Series in accordance with Rule 12b-1 under the 1940 Act.

         I. A.  Each  Series  listed  below  is  authorized  to pay to  Mitchell
Hutchins,  as compensation for Mitchell Hutchins' services as Distributor of the
Series' Class C shares,  distribution fees at the rates (on an annualized basis)
set forth below of the average  daily net assets of the Series'  Class C shares.
Such fees shall be  calculated  and  accrued  daily and paid  monthly or at such
other intervals as the Board shall determine:

               PaineWebber Enhanced S&P 500 Fund             0.40%
               PaineWebber Enhanced Nasdaq-100 Fund          0.75%

            B. Any Series hereafter established is authorized to pay to Mitchell
Hutchins,  as compensation for Mitchell Hutchins' services as Distributor of the
Series Class C shares,  a distribution  fee in the amount to be agreed upon in a
written  distribution  fee addendum to this Plan  ("Distribution  Fee Addendum")
executed by the Fund on behalf of such Series. All such Distribution Fee Addenda
shall provide that they are subject to all terms and conditions of this Plan.

            C.  Each  Series  is  authorized  to pay to  Mitchell  Hutchins,  as
compensation for Mitchell Hutchins' services as Distributor of the Series' Class
C shares,  a service fee at the rate of 0.25%,  on an annualized  basis,  of the
average  daily net  assets  of the  Series'  Class C  shares.  Such fee shall be
calculated and accrued daily and paid monthly or at such other  intervals as the
Board shall determine.


<PAGE>

            D. Any Series may pay a  distribution  or  service  fee to  Mitchell
Hutchins at a lesser rate than the fees specified  above,  as agreed upon by the
Board and Mitchell Hutchins and as approved in the manner specified in Paragraph
4 of this Plan.

         1. As  Distributor  of the  Class C  shares  of each  Series,  Mitchell
Hutchins may spend such amounts as it deems  appropriate  on any  activities  or
expenses  primarily  intended to result in the sale of the Class C shares of the
Series or the servicing and maintenance of shareholder accounts,  including, but
not limited to, compensation to employees of Mitchell Hutchins;  compensation to
and expenses, including overhead and telephone and other communication expenses,
of  Mitchell  Hutchins,   PaineWebber  Incorporated  ("PaineWebber")  and  other
selected  dealers  who engage in or support  the  distribution  of shares or who
service  shareholder  accounts;  the  printing of  prospectuses,  statements  of
additional  information,  and reports for other than existing shareholders;  and
the  preparation,  printing and distribution of sales literature and advertising
materials.

         2. If  adopted  with  respect  to Class C shares of a Series  after any
public offering of those shares, this Plan shall not take effect with respect to
those  shares  unless it has first been  approved  by a  majority  of the voting
securities of the Class C shares of that Series.  This  provision does not apply
to  adoption  as an  amended  Plan  of  Distribution  where  the  prior  Plan of
Distribution  either  was  approved  by a  vote  of a  majority  of  the  voting
securities of the Class C shares of the  applicable  Series or such approval was
not required under Rule 12b-1.

         3. This Plan shall not take effect  with  respect to the Class C shares
of any  Series  unless it first has been  approved,  together  with any  related
agreements,  by votes of a  majority  of both (a) the Board and (b) those  Board
members of the Trust who are not  "interested  persons" of the Trust and have no
direct or  indirect  financial  interest  in the  operation  of this Plan or any
agreements related thereto  ("Independent  Board members"),  cast in person at a
meeting (or  meetings)  called for the purpose of voting on such  approval;  and
until the Board  members who approve the Plan's  taking  effect with  respect to
such  Series'  Class C shares  have  reached  the  conclusion  required  by Rule
12b-1(e) under the 1940 Act.

         4. After  approval  as set forth in  Paragraph  3 (if  applicable)  and
Paragraph  4, this Plan shall take effect and  continue in full force and effect
for so long as such  continuance is  specifically  approved at least annually in
the manner provided for approval of this Plan in Paragraph 4.

         5.  Mitchell  Hutchins  shall  provide to the Board and the Board shall
review,  at least  quarterly,  a written  report of the  amounts  expended  with
respect to the Class C shares of each  Series by  Mitchell  Hutchins  under this
Plan and the Contract and the  purposes for which such  expenditures  were made.
Mitchell  Hutchins shall submit only information  regarding amounts expended for
"distribution  activities,"  as  defined  in this  Paragraph  6, to the Board in
support  of the  distribution  fee  payable  hereunder  and  shall  submit  only
information  regarding amounts expended for "service  activities," as defined in
this Paragraph 6, to the Board in support of the service fee payable hereunder.


                                      -2-
<PAGE>

            For purposes of this Plan, "distribution  activities" shall mean any
activities in connection with Mitchell Hutchins'  performance of its obligations
under  this  Plan or the  Contract  that are not  deemed  "service  activities."
"Service  activities"  shall mean activities in connection with the provision by
Mitchell Hutchins or PaineWebber of personal,  continuing  services to investors
in the Class C shares of the Series;  provided,  however,  that if the  National
Association of Securities Dealers, Inc. ("NASD") adopts a definition of "service
fee" for purposes of Section  2830(b)(9)  of the NASD Conduct Rules that differs
from the definition of "service activities"  hereunder,  or if the NASD adopts a
related  definition  intended  to define the same  concept,  the  definition  of
"service activities" in this Paragraph shall be automatically  amended,  without
further action of the parties, to conform to such NASD definition.  Overhead and
other  expenses  of  Mitchell   Hutchins  and   PaineWebber   related  to  their
"distribution activities" or "service activities," including telephone and other
communications  expenses,  may be included in the information  regarding amounts
expended for such activities.

         6. This Plan may be  terminated  with  respect to the Class C shares of
any  Series  at any  time by vote of the  Board,  by vote of a  majority  of the
Independent  Board members,  or by vote of a majority of the outstanding  voting
securities of the Class C shares of that Series.

         7. This Plan may not be amended to  increase  materially  the amount of
distribution  fees  provided  for in  Paragraph 1A or Paragraph 1B hereof or the
amount of service fees provided for in Paragraph 1C hereof unless such amendment
is approved by a majority of the  outstanding  voting  securities of the Class C
shares of the  affected  Series and no material  amendment  to the Plan shall be
made unless approved in the manner provided for initial  approval in Paragraph 4
hereof.

         8. The  amount of the  distribution  and  service  fees  payable by the
Series to  Mitchell  Hutchins  under  Paragraphs  1A,  1B and 1C hereof  and the
Contract is not related  directly to expenses  incurred by Mitchell  Hutchins on
behalf of such  Series in  serving  as  Distributor  of the Class C shares,  and
Paragraph 2 hereof and the  Contract  do not  obligate  the Series to  reimburse
Mitchell Hutchins for such expenses. The distribution and service fees set forth
in  Paragraphs  1A, 1B and 1C  hereof  will be paid by the  Series  to  Mitchell
Hutchins until either the Plan or the Contract is terminated or not renewed.  If
either the Plan or the Contract is terminated or not renewed with respect to the
Class C shares of any Series,  any  distribution  expenses  incurred by Mitchell
Hutchins  on behalf of the Class C shares of the Series in excess of payments of
the  distribution  and service fees specified in Paragraphs 1A, 1B and 1C hereof
and the Contract  which  Mitchell  Hutchins has received or accrued  through the
termination date are the sole responsibility and liability of Mitchell Hutchins,
and are not obligations of the Series.

         9. While this Plan is in effect,  the selection  and  nomination of the
Board members who are not interested  persons of the Trust shall be committed to
the discretion of the Board members who are not interested persons of the Trust.

         10. As used in this Plan, the terms "majority of the outstanding voting
securities" and  "interested  person" shall have the same meaning as those terms
have in the 1940 Act.


                                      -3-
<PAGE>

         11.  The  Trust  shall  preserve  copies of this  Plan  (including  any
amendments  thereto) and any related agreements and all reports made pursuant to
Paragraph 6 hereof for a period of not less than six years from the date of this
Plan, the first two years in an easily accessible place.

         12. The Board members of the Trust and the  shareholders of each Series
shall not be liable for any  obligations  of the Trust or any Series  under this
Plan,  and Mitchell  Hutchins or any other  person,  in asserting  any rights or
claims under this Plan,  shall look only to the assets and property of the Trust
or such  Series in  settlement  of such  right or claim,  and not to such  Board
members or shareholders.

         IN WITNESS  WHEREOF,  the Trust has caused this Plan of Distribution to
be executed on the day and year set forth below in New York, New York.

Date:  __________, 2000

ATTEST:                                     MITCHELL HUTCHINS SECURITIES TRUST



                                            By:
- ---------------------------                    ---------------------------------





                                                                    EXHIBIT (15)

                       MITCHELL HUTCHINS SECURITIES TRUST
                   MULTIPLE CLASS PLAN PURSUANT TO RULE 18F-3

      Mitchell Hutchins Securities Trust hereby adopts this Multiple Class Plan
pursuant to Rule 18f-3 under the Investment Company Act of 1940, as amended
("1940 Act") on behalf of its current two distinct series, PaineWebber Enhanced
S&P 500 Fund and PaineWebber Enhanced Nasdaq-100 Fund, and any series that may
be established in the future (referred to hereinafter collectively as the
"Funds" and individually as a "Fund").

A.    GENERAL DESCRIPTION OF CLASSES THAT ARE OFFERED:

      1. CLASS A SHARES. Class A shares of each Fund are sold to the general
public subject to an initial sales charge. The initial sales charge for each
Fund is waived for certain eligible purchasers and reduced or waived for certain
large volume purchases.

      The maximum sales charge for PaineWebber Enhanced S&P 500 Fund is 3% of
the public offering price for Class A shares of the Fund.

      The maximum sales charge for Class A shares of any other Fund that invests
primarily in equity securities or in a combination of equity and debt securities
is 4.5% of the public offering price.

      The maximum sales charge for Class A shares of a Fund that invests
primarily in debt securities is 4% of the public offering price.

      Class A shares of each Fund are subject to an annual service fee of 0.25%
of the average daily net assets of the Class A shares of the Fund paid pursuant
to a plan of distribution adopted pursuant to Rule 12b-1 under the 1940 Act.

      Class A shares of each Fund are subject to a contingent deferred sales
charge ("CDSC") on redemptions of shares (i) purchased without an initial sales
charge due to a sales charge waiver for purchases of $1 million or more and (ii)
held less than one year. The Class A CDSC is equal to 1% (0.50% for PaineWebber
Enhanced S&P 500 Fund) of the lower of: (i) the net asset value of the shares at
the time of purchase or (ii) the net asset value of the shares at the time of
redemption. Class A shares of each Fund held one year or longer and Class A
shares of each Fund acquired through reinvestment of dividends or capital gains
distributions on shares otherwise subject to a Class A CDSC are not subject to
the CDSC. The CDSC for Class A shares of each Fund will be waived under certain
circumstances.

      2. CLASS B SHARES. Class B shares of each Fund are sold to the general
public subject to a CDSC, but without imposition of an initial sales charge.

      The maximum CDSC for Class B shares of PaineWebber Enhanced S&P 500 Fund
is equal to 3% of the lower of: (i) the net asset value of the shares at the
time of purchase or (ii) the net asset value of the shares at the time of

<PAGE>

redemption. The higher CDSC applies if the shares being redeemed were acquired
through an exchange with a fund that has a higher CDSC.

      The maximum CDSC for Class B shares of each other Fund is equal to 5% of
the lower of: (i) the net asset value of the shares at the time of purchase or
(ii) the net asset value of the shares at the time of redemption.

      Class B shares of each Fund held six years or longer and Class B shares of
each Fund acquired through reinvestment of dividends or capital gains
distributions are not subject to the CDSC.

      Class B shares of each Fund are subject to an annual service fee of 0.25%
of average daily net assets. Class B shares of PaineWebber Enhanced S&P 500 Fund
are subject to an annual distribution fee of 0.40% of average daily net assets
of the Class B shares and the Class B shares of each other Fund are subject to
an annual distribution fee of 0.75% of average daily net assets of the Class B
shares. These service and distribution fees are paid pursuant to a plan of
distribution adopted pursuant to Rule 12b-1 under the 1940 Act.

      Class B shares of each Fund convert to Class A shares approximately six
years after issuance at relative net asset value.

      3. CLASS C SHARES. Class C shares of each Fund are sold to the general
public without imposition of an initial sales charge.

      Class C shares of each Fund are subject to an annual service fee of 0.25%
of average daily net assets. Class C shares of PaineWebber Enhanced S&P 500 Fund
are subject to an annual distribution fee of 0.40% of average daily net assets
of Class C shares and the Class C shares of each other Fund are subject to an
annual distribution fee of 0.75% of average daily net assets of the Class C
shares. These service and distribution fees are paid pursuant to a plan of
distribution adopted pursuant to Rule 12b-1 under the 1940 Act. Class C shares
of PaineWebber Enhanced S&P 500 Fund are subject to a CDSC on redemptions of
Class C shares held less than one year equal to .65% of the lower of: (i) the
net asset value of the shares at the time of purchase or (ii) the net asset
value of the shares at the time of redemption. Class C shares of each other Fund
are subject to a CDSC on redemptions of Class C shares held less than one year
equal to 1% of the lower of: (i) the net asset value of the shares at the time
of purchase or (ii) the net asset value of the shares at the time of redemption.

      Class C shares of each Fund held one year or longer and Class C shares of
each Fund acquired through reinvestment of dividends or capital gains
distributions are not subject to the CDSC. The CDSC for Class C shares of each
Fund will be waived under certain circumstances.

      4. CLASS Y SHARES. Class Y shares are sold without imposition of an
initial sales charge or CDSC and are not subject to any service or distribution
fees.

      Class Y shares of each Fund are available for purchase only by: (i)
employee benefit and retirement plans, other than individual retirement accounts
and self-employed retirement plans, of Paine Webber Group Inc. and its


                                       2
<PAGE>

affiliates; (ii) certain unit investment trusts sponsored by PaineWebber
Incorporated ("PaineWebber"); (iii) participants in certain investment programs
that are currently, or will in the future be, sponsored by PaineWebber or its
affiliates and that charge a separate fee for program services, provided that
shares are purchased through or in connection with such programs; (iv) investors
purchasing $10,000,000 or more at one time in any combination of PaineWebber
proprietary funds in the Flexible Pricing System; (v) an employee benefit plan
qualified under section 401 (including a salary reduction plan qualified under
section 401(k)) or section 403(b) of the Internal Revenue Code (each an
"employee benefit plan"), provided that such employee benefit plan has 5,000 or
more eligible employees; (vi) an employee benefit plan with assets of
$50,000,000 or more; and (vii) any investment company advised by PaineWebber or
its affiliates.

B.    EXPENSE ALLOCATIONS OF EACH CLASS:

      Certain expenses may be attributable to a particular Class of shares of
each Fund ("Class Expenses"). Class Expenses are charged directly to the net
assets of the particular Class and, thus, are borne on a pro rata basis by the
outstanding shares of that Class.

      In addition to the distribution and service fees described above, each
Class may also pay a different amount of the following other expenses:

            (1)   printing and postage expenses related to preparing and
                  distributing materials such as shareholder reports,
                  prospectuses, and proxies to current shareholders of a
                  specific Class;

            (2)   Blue Sky fees incurred by a specific Class of shares;

            (3)   SEC registration fees incurred by a specific Class of shares;

            (4)   expenses of administrative personnel and services required to
                  support the shareholders of a specific Class of shares;

            (5)   Trustees' fees incurred as a result of issues relating to a
                  specific Class of shares;

            (6)   litigation expenses or other legal expenses relating to a
                  specific Class of shares; and

            (7)   transfer agent fees identified as being attributable to a
                  specific Class.

C.    EXCHANGE PRIVILEGES:

      Class A, Class B and Class C shares of each Fund may be exchanged for
shares of the corresponding Class of other PaineWebber mutual funds or may be
acquired through an exchange of shares of the corresponding Class of those
funds. Class Y shares of the Funds are not exchangeable.



                                       3
<PAGE>

      These exchange privileges may be modified or terminated by a Fund, and
exchanges may only be made into funds that are legally registered for sale in
the investor's state of residence.

D.    CLASS DESIGNATION:

      Subject to approval by the Board of Trustees of Mitchell Hutchins
Portfolios, a Fund may alter the nomenclature for the designations of one or
more of its classes of shares.


E.    ADDITIONAL INFORMATION:

      This Multiple Class Plan is qualified by and subject to the terms of the
then current prospectus for the applicable Classes; provided, however, that none
of the terms set forth in any such prospectus shall be inconsistent with the
terms of the Classes contained in this Plan. The prospectus for each Fund
contains additional information about the Classes and each Fund's multiple class
structure.


F.    DATE OF EFFECTIVENESS:

      This Multiple Class Plan is effective as of the date hereof, provided that
this Plan shall not become effective with respect to any Fund unless such action
has first been approved by the vote of a majority of the Board and by vote of a
majority of those trustees of the Fund who are not interested persons of
Mitchell Hutchins Securities Trust.



                                                ___________, 2000


                                       4


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