PAINEWEBBER MANAGED ASSETS TRUST
485BPOS, 1998-11-23
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<PAGE>

   
    As filed with the Securities and Exchange Commission on November 20, 1998
    

                                              1933 Act Registration No. 33-42160
                                              1940 Act Registration No. 811-6376

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

          REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [ X ]

   
                         Pre-Effective Amendment No. [ ]
                      Post-Effective Amendment No. 13 [ X ]
    

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

   
                             Amendment No. 15 [ X ]
                        (Check appropriate box or boxes.)
    

                        PAINEWEBBER MANAGED ASSETS TRUST
               (Exact name of registrant as specified in charter)

                           1285 Avenue of the Americas
                            New York, New York 10019
                    (Address of principal executive offices)

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

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

                                   Copies to:
                             ELINOR W. GAMMON, Esq.
                            BENJAMIN J. HASKIN, Esq.
                           Kirkpatrick & Lockhart LLP
                   1800 Massachusetts Avenue, N.W., 2nd Floor
                           Washington, D.C. 20036-1800
                            Telephone: (202) 778-9000

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

It is proposed that this filing will become effective:

[ ] Immediately upon filing pursuant to Rule 485(b) 
   
[ X ] On November 30, 1998 pursuant to Rule 485(b)
    
[ ] 60 days after filing pursuant to Rule 485 (a)(1) 
[ ] On pursuant to Rule 485 (a)(1) 
[ ] 75 days after filing pursuant to Rule 485(a)(2) 
[ ] On pursuant to Rule 485(a)(2)

Title of Securities Being Registered:  Shares of Beneficial Interest.

<PAGE>

                        PaineWebber Managed Assets Trust
                       Contents of Registration Statement

         This registration statement consists of the following papers and
documents:

         Cover Sheet

         Contents of Registration Statement

         Cross Reference Sheet

   
         Part A - Prospectus
    
         Part B - Statement of Additional Information

         Part C - Other Information

         Signature Page

         Exhibits

<PAGE>

   
                        PaineWebber Managed Assets Trust:
                            PaineWebber Mid Cap Fund
    
                         Form N-1A Cross Reference Sheet


   
<TABLE>
<CAPTION>

Part A Item No. and Caption                                             Prospectus Caption
- ---------------------------                                             ------------------
<S>                                                                     <C>
      1.       Cover Page                                               Cover Page

      2.       Synopsis                                                 The Funds at a Glance; Expense Table

      3.       Condensed Financial Information                          Financial Highlights;  Performance

      4.       General Description of Registrant                        The Funds at a Glance; Investment Objectives &
                                                                        Policies; Investment Philosophy & Process; The
                                                                        Funds' Investments; General Information

      5.       Management of the Fund                                   Management; General Information

      5A.      Management's Discussion of Fund Performance              Financial Highlights

      6.       Capital Stock and Other Securities                       Cover Page; Flexible Pricing(Service Mark); Dividends &
                                                                        Taxes; General Information

      7.       Purchase of Securities Being Offered                     Flexible Pricing(Service Mark); How to Buy Shares; Other
                                                                        Services; Determining the Shares' Net Asset Value

      8.       Redemption or Repurchase                                 How to Sell Shares;  Other Services

      9.       Pending Legal Proceedings                                Not Applicable

<CAPTION>

Part B Item No. and Caption                                            Statement of Additional Information Caption
- ---------------------------                                            -------------------------------------------
<S>                                                                    <C>
      10.      Cover page                                              Cover Page

      11.      Table of Contents                                       Table of Contents

      12.      General Information and History                         Other Information

      13.      Investment Objective and Policies                       Investment Policies and Restrictions; Strategies
                                                                       Using Derivative Instruments; Portfolio Transactions

      14.      Management of the Fund                                  Trustees and Officers; Principal Holders of
                                                                       Securities

      15.      Control Persons and Principal Holders of Securities     Trustees and Officers; Principal Holders of
                                                                       Securities

      16.      Investment Advisory and Other Services                  Investment Advisory and Distribution Arrangements;
                                                                       Other Information

      17.      Brokerage Allocation                                    Portfolio Transactions

      18.      Capital Stock and Other Securities                      Conversion of Class B Shares; Other Information

</TABLE>
    

<PAGE>


<TABLE>
<CAPTION>

Part B Item No. and Caption                                            Statement of Additional Information Caption
- ---------------------------                                            -------------------------------------------
<S>                                                                     <C>
      19.      Purchase, Redemption and Pricing of Securities Being    Reduced Sales Charges, Additional Exchange and
               Offered                                                 Redemption Information and Other Services;
                                                                       Valuation of Shares

      20.      Tax Status                                              Taxes

      21.      Underwriters                                            Investment Advisory and Distribution Arrangements

      22.      Calculation of Performance Data                         Performance Information

      23.      Financial Statements                                    Financial Statements

</TABLE>

         Part C
         ------
         Information required to be included in Part C is set forth under the
         appropriate item, so numbered, in Part C of this Registration
         Statement.


<PAGE>
   
                       PaineWebber Growth and Income Fund
                            PaineWebber Mid Cap Fund
                           PaineWebber Small Cap Fund
                            PaineWebber Growth Fund
    
 
   
             1285 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK 10019
                        PROSPECTUS -- NOVEMBER 30, 1998
    
 
   
       PaineWebber Stock Funds are designed for investors generally
       seeking capital appreciation by investing mainly in equity
       securities. PaineWebber Growth and Income Fund seeks to provide
       both current income and capital growth by investing primarily in
       dividend-paying equity securities believed to have potential for
       rapid earnings growth. PaineWebber Mid Cap Fund seeks long-term
       capital appreciation by investing primarily in common stocks of
       medium-sized companies. PaineWebber Small Cap Fund seeks long-term
       capital appreciation by investing primarily in equity securities
       of small capitalization companies. PaineWebber Growth Fund seeks
       long-term capital appreciation by investing primarily in equity
       securities of companies believed to have substantial potential for
       capital growth.
    
 
       This Prospectus concisely sets forth information that an investor
       should know about the Funds before investing. Please read this
       Prospectus carefully and retain a copy for future reference.
 
   
       A Statement of Additional Information dated November 30, 1998 has
       been filed with the Securities and Exchange Commission ("SEC" or
       "Commission") and is legally part of this Prospectus. The
       Statement of Additional Information can be obtained without
       charge, and further inquiries can be made, by contacting an
       individual Fund, your PaineWebber investment executive,
       PaineWebber's correspondent firms or by calling toll-free
       1-800-647-1568. In addition, the Commission maintains a website
       (http://www.sec.gov) that contains the Statement of Additional
       Information, material incorporated by reference, and other
       information regarding registrants that file electronically with
       the Commission.
    
 
       THE PAINEWEBBER FAMILY OF MUTUAL FUNDS
 
   
       The PaineWebber Family of Mutual Funds consists of seven broad
       categories, which are presented here. Generally, investors seeking
       to maximize return must assume greater risk. The Funds offered by
       this Prospectus are all in the STOCK FUNDS category.
    
 
o MONEY MARKET FUND for income and stability by
  investing in high-quality, short-term investments.
 
o BOND FUNDS for income by investing mainly in bonds.
 
o TAX-FREE BOND FUNDS for income exempt from
  federal income tax and, in some cases, state and
local income taxes, by investing in municipal bonds.
 
o ASSET ALLOCATION FUNDS for high total return by
  investing in stocks and bonds.
 
o STOCK FUNDS for long-term growth by investing mainly
  in equity securities.
 
o GLOBAL FUNDS for long-term growth by investing
  mainly in foreign stocks or high current income by
  investing mainly in global debt instruments.
 
   
o FUNDS OF FUNDS for either long-term growth of
  capital; total return; or income and, secondarily,
  growth of capital by investing in other
  PaineWebber mutual funds.
    
 
       A complete listing of the PaineWebber Family of Mutual Funds is
       found on the back cover of this Prospectus.
 
       INVESTORS SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR
       REFERRED TO IN THIS PROSPECTUS. THE FUNDS AND THEIR DISTRIBUTOR
       HAVE NOT AUTHORIZED ANYONE TO PROVIDE INVESTORS WITH INFORMATION
       THAT IS DIFFERENT. THE PROSPECTUS IS NOT AN OFFER TO SELL SHARES
       OF THE FUNDS IN ANY JURISDICTION WHERE THE FUNDS OR THEIR
       DISTRIBUTOR MAY NOT LAWFULLY SELL THOSE SHARES.
 
       THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
       SECURITIES AND EXCHANGE
       COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR
       ADEQUACY OF THIS PROSPECTUS.
                         ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
                                ----------------
                               Prospectus Page 1

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                               TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
                                           PAGE
                                           ----
 
The Funds at a Glance...................     3
 
Expense Table...........................     6
 
Investment Objectives & Policies........     9
 
Investment Philosophy & Process.........    10
 
Performance.............................    12
 
The Funds' Investments..................    16
 
Flexible Pricing(Service Mark)..........    19
 
How to Buy Shares.......................    22
 
How to Sell Shares......................    24
 
Other Services..........................    24
 
Management..............................    25
 
Determining the Shares' Net Asset
  Value.................................    28
 
Dividends & Taxes.......................    28
 
General Information.....................    29
 
Financial Highlights....................    32
 
                             --------------------
                               Prospectus Page 2

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                             THE FUNDS AT A GLANCE
- --------------------------------------------------------------------------------
 
   
The Funds offered by this Prospectus are not intended to provide a complete
investment program, but one or more of them may be appropriate as a component of
an investor's overall portfolio. Some common reasons to invest in these Funds
are to finance college educations, plan for retirement or diversify a portfolio.
When selling shares, investors should be aware that they may get more or less
for their shares than they originally paid for them. As with any mutual fund,
there is no assurance that the Funds will achieve their goals.
    
 
GROWTH AND INCOME FUND
 
GOAL: To increase the value of your investment by investing primarily in
dividend-paying equity securities believed to have potential for rapid earnings
growth.
 
INVESTMENT OBJECTIVE: Current income and capital growth.
 
   
WHO SHOULD INVEST: Growth and Income Fund is designed for investors seeking
current income and capital growth through investment primarily in
dividend-paying equity securities of U.S. companies and foreign companies that
are traded in the United States. Growth and Income Fund invests primarily in
larger, more established companies believed to be undervalued and to have
potential for rapid earnings growth. In addition, Growth and Income Fund can
invest in high yield, high risk convertible bonds. These investments offer the
potential for greater returns, but also entail a substantial degree of
volatility and risk. Accordingly, Growth and Income Fund is designed for
investors who are able to bear the risks that come with investments in the
stocks and bonds of such companies.
    
 
   
SIZE: On October 31, 1998, the Fund had over $1.3 billion in net assets.
    
 
   
MID CAP FUND
    
 
   
GOAL: To increase the value of your investment by investing primarily in common
stocks of medium-sized domestic companies and some foreign companies selected
primarily on the basis of earnings growth.
    
 
   
INVESTMENT OBJECTIVE: Long-term capital appreciation.
    
   
WHO SHOULD INVEST: Mid Cap Fund is designed for investors who want long-term
capital appreciation. The Fund seeks to achieve this objective by investing
primarily in common stocks of medium-sized domestic companies and foreign
companies that are traded in the United States. Equity securities of small- and
medium-sized companies offer investors the potential for greater returns than
larger companies but are typically more volatile. Accordingly, the Fund is
designed for investors seeking long-term growth who are able to bear the risks
that come with investments in the equity securities of such companies.
    
 
   
SIZE: On October 31, 1998, the Fund had over $180 million in assets.
    
 
   
SMALL CAP FUND
    
 
   
GOAL: To increase the value of your investment by investing primarily in equity
securities of small capitalization ("small cap") companies.
    
 
   
INVESTMENT OBJECTIVE: Long-term capital appreciation.
    
 
   
WHO SHOULD INVEST: Small Cap Fund is designed for investors who are seeking
long-term capital appreciation through investments primarily in equity
securities of small cap U.S. companies and foreign companies that are traded in
the United States. Small Cap Fund seeks to invest in small cap companies
believed to be undervalued and to have strong earnings momentum. Several
statistical studies have been published indicating that the historical long-term
returns of small cap equity securities have been higher than those of large cap
equity securities. Equity securities of small cap companies generally exhibit
greater market volatility than is the case with equity securities of larger
companies, or equity securities in general. In addition, Small Cap Fund can
invest in high yield, high risk convertible bonds. These investments offer the
potential for greater returns, but also entail a substantial degree of
volatility and risk. Accordingly, Small Cap Fund is designed for investors who
are able to bear the risks and fluctuations associated with investment in
smaller companies.
    
 
   
SIZE: On October 31, 1998, the Fund had over $113 million in net assets.
    
 
                              --------------------
                               Prospectus Page 3

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                             THE FUNDS AT A GLANCE
                                  (Continued)
- --------------------------------------------------------------------------------
 
GROWTH FUND
 
GOAL: To increase the value of your investment by investing primarily in equity
securities of companies believed to have substantial potential for capital
growth.
 
INVESTMENT OBJECTIVE: Long-term capital appreciation.
 
   
SIZE: On October 31, 1998, the Fund had over $362 million in net assets.
    
 
   
WHO SHOULD INVEST: Growth Fund is designed for investors who want long-term
capital appreciation through investment primarily in growth-oriented equity
securities of U.S. companies and foreign companies that are traded in the United
States. Growth Fund invests primarily in large, medium and small companies
believed to have greater capital growth potential. In addition, Growth Fund can
invest in high yield, high risk bonds and convertible securities. These
investments offer the potential for greater returns, but also entail a
substantial degree of volatility and risk. Accordingly, Growth Fund is designed
for investors who are able to bear the risks that come with investments in the
stocks and bonds of such companies.
    
 
       

   
MANAGEMENT
    
 
   
Mitchell Hutchins Asset Management Inc. ("Mitchell Hutchins"), a wholly owned
asset management subsidiary of PaineWebber Incorporated ("PaineWebber"), is the
investment adviser and administrator of each Fund.
    
 
MINIMUM INVESTMENT
 
   
To open an account, investors need $1,000; to add to an account, investors need
only $100.
    
 
       
   
RISKS
    
 
   
EQUITY SECURITIES historically have shown greater growth potential than other
types of securities, but they have also shown greater volatility. Because each
Fund will invest primarily in equity securities, its price will rise and fall.
Each Fund may invest in U.S. dollar-denominated securities of foreign companies,
which may involve more risk than the securities of U.S. companies. Each Fund may
use derivatives, such as options and futures, which may involve special risks.
Investors may lose money by investing in a Fund; the investment is not
guaranteed.
    
   
GROWTH AND INCOME FUND, SMALL CAP FUND AND GROWTH FUND each may invest up to 10%
of its total assets in high yield, high risk convertible bonds, which are
considered predominantly speculative and may involve major risk exposure to
adverse conditions.
    
 
   
MID CAP FUND invests primarily in medium-sized companies, which may have higher
earnings growth rates than larger companies, offering the potential for greater
returns. However, the greater potential of these companies may entail greater
market volatility and risks of adverse financial developments.
    
 
   
SMALL CAP FUND invests primarily in small cap companies, which typically are
subject to a greater degree of change in earnings and business prospects than
are larger, more established companies. In addition, equity securities of small
cap companies may be less liquid and more volatile than those of larger
companies.
    
 
HOW TO PURCHASE SHARES OF THE FUNDS
 
Investors may select among these classes of shares:
 
CLASS A SHARES
 
The price is the net asset value plus the initial sales charge; the maximum
sales charge is 4.5% of the public offering price. Although investors pay an
initial sales charge when they buy Class A shares, the ongoing expenses for this
class are lower than the ongoing expenses of Class B and Class C shares.
 
CLASS B SHARES
 
The price is the net asset value. Investors do not pay an initial sales charge
when they buy Class B shares. As a result, 100% of their purchase is immediately
invested. However, Class B shares have higher ongoing expenses than Class A
shares. Depending upon how long they own the shares, investors may have to pay a
sales charge when they sell Class B shares. This is called a "contingent
deferred sales charge" and applies when investors sell their Class B shares
within six years after purchase. After six years, Class B shares convert to
Class A shares, which have lower ongoing expenses and no contingent deferred
sales charge.
 
                              --------------------
                               Prospectus Page 4

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                             THE FUNDS AT A GLANCE
                                  (Continued)
- --------------------------------------------------------------------------------
 
CLASS C SHARES
 
The price is the net asset value. Investors do not pay an initial sales charge
when they buy Class C shares. As a result, 100% of their purchase is immediately
invested. However, Class C shares have higher ongoing expenses than Class A
shares. A contingent deferred sales charge of 1% is charged on shares sold
within one year of purchase. Class C shares never convert to any other class of
shares.
 
CLASS Y SHARES
 
Class Y shares are offered only to limited groups of investors. The price is the
net asset value. Investors do not pay an initial sales charge when they buy
Class Y shares. As a result, 100% of their purchase is immediately invested.
Investors also do not pay a contingent deferred sales charge when they sell
Class Y shares. Class Y shares have lower ongoing expenses than any other class
of shares.
 
                              --------------------
                               Prospectus Page 5

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                                 EXPENSE TABLE
- --------------------------------------------------------------------------------
 
   
The following tables are intended to assist investors in understanding the
expenses associated with investing in each class of shares of the Funds.
Expenses shown below are based on those incurred for the most recent fiscal
year, except that the 12b-1 Fees for Class A shares of Growth and Income Fund
and Growth Fund are shown at the current rates of 0.25% and 0.24%, respectively.
    
 
   
<TABLE>
<CAPTION>

SHAREHOLDER TRANSACTION EXPENSES                     CLASS A     CLASS B     CLASS C     CLASS Y
                                                     --------    --------    --------    --------
<S>                                                  <C>         <C>         <C>         <C>
Maximum Sales Charge on Purchases of Shares 
  (as a % of offering price)......................     4.50%       None        None        None
Sales Charge on Reinvested Dividends 
  (as a % of offering price)......................     None        None        None        None
Maximum Contingent Deferred Sales Charge (as a %
  of offering price or net asset value at the time
  of sale, whichever is less).....................     None           5%          1%       None
Exchange Fee......................................     None        None        None        None
ANNUAL FUND OPERATING EXPENSES 
(as a % of average net assets)
GROWTH AND INCOME FUND
Management Fees...................................     0.70%       0.70%       0.70%       0.70%
12b-1 Fees........................................     0.25        1.00        1.00        None
Other Expenses....................................     0.14        0.17        0.15        0.10
                                                       ----        ----        ----        ----
Total Operating Expenses..........................     1.09%       1.87%       1.85%       0.80%
                                                       ----        ----        ----        ----
                                                       ----        ----        ----        ----
MID CAP FUND
Management Fees...................................     1.00%       1.00%       1.00%       1.00%
12b-1 Fees........................................     0.25        1.00        1.00        None
Other Expenses....................................     0.23        0.32        0.28        0.23
                                                       ----        ----        ----        ----
Total Operating Expenses..........................     1.48%       2.32%       2.28%       1.23%
                                                       ----        ----        ----        ----
                                                       ----        ----        ----        ----
SMALL CAP FUND
Management Fees...................................     1.00%       1.00%       1.00%       1.00%
12b-1 Fees........................................     0.25        1.00        1.00        None
Other Expenses....................................     0.31        0.33        0.32        0.39
                                                       ----        ----        ----        ----
Total Operating Expenses..........................     1.56%       2.33%       2.32%       1.39%
                                                       ----        ----        ----        ----
                                                       ----        ----        ----        ----
GROWTH FUND
Management Fees...................................     0.75%       0.75%       0.75%       0.75%
12b-1 Fees........................................     0.24        1.00        1.00        None
Other Expenses....................................     0.21        0.24        0.24        0.16
                                                       ----        ----        ----        ----
Total Operating Expenses..........................     1.20%       1.99%       1.99%       0.91%
                                                       ----        ----        ----        ----
                                                       ----        ----        ----        ----
</TABLE>
    
 
- ------------------
 
   
CLASS A SHARES: Sales charge waivers and a reduced sales charge purchase plan
are available. 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.
    

CLASS B SHARES: Sales charge waivers are available. 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.

   
CLASS C SHARES: 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.
    
   
CLASS Y SHARES: No initial or contingent deferred sales charge is imposed, nor
are Class Y shares subject to 12b-1 distribution or service fees. Class Y shares
may be purchased by participants in certain investment programs that are
sponsored by PaineWebber and that may invest in PaineWebber mutual funds ("PW
Programs"), when Class Y shares are purchased through that PW Program.
Participation in a PW Program is subject to an advisory fee at the effective
maximum annual rate of no more than 1.5% of assets held through that PW Program.
This account charge is not included in the table because investors who are not
PW Program participants also are permitted to purchase Class Y shares.
    
 
                              --------------------
                               Prospectus Page 6

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                                 EXPENSE TABLE
                                  (Continued)
- --------------------------------------------------------------------------------
 
12b-1 distribution fees are asset-based sales charges. Long-term Class B and
Class C shareholders may pay more in direct and indirect sales charges
(including 12b-1 distribution fees) than the economic equivalent of the maximum
front-end sales charge permitted by the National Association of Securities
Dealers, Inc. 12b-1 fees have two components, as follows:
 
   
<TABLE>
<CAPTION>

GROWTH AND INCOME FUND

MID CAP FUND

SMALL CAP FUND                             CLASS A    CLASS B    CLASS C    CLASS Y
                                           -------    -------    -------    -------
<S>                                        <C>        <C>        <C>        <C>
12b-1 service fees......................     0.25%      0.25%      0.25%      None
12b-1 distribution fees.................     None       0.75       0.75       None
 
GROWTH FUND
12b-1 service fees......................     0.24%      0.25%      0.25%      None
12b-1 distribution fees.................     None       0.75       0.75       None
</TABLE>
    
 
   
The 12b-1 fees for Class A shares of Growth Fund reflect a blended annual rate
of the Fund's average daily net assets of 0.25% and 0.15%, representing shares
sold on or after December 2, 1988 and shares sold prior to that date,
respectively.
    
 
For more information, see "Management" and "Flexible Pricing(Service Mark)."
 
EXAMPLES OF EFFECT OF FUND EXPENSES
 
   
The following examples should assist investors in understanding various costs
and expenses incurred as shareholders of a Fund. The assumed 5% annual return
shown in the examples is required by regulations of the SEC applicable to all
mutual funds. THESE EXAMPLES SHOULD NOT BE CONSIDERED TO BE A REPRESENTATION OF
PAST OR FUTURE EXPENSES. ACTUAL EXPENSES OF A FUND MAY BE MORE OR LESS THAN
THOSE SHOWN.
    
 
An investor would, directly or indirectly, pay the following expenses on a
$1,000 investment in a Fund, assuming a 5% annual return:
 
GROWTH AND INCOME FUND
 
   
<TABLE>
<CAPTION>

EXAMPLE                                    1 YEAR    3 YEARS    5 YEARS    10 YEARS
- ----------------------------------------   ------    -------    -------    --------
<S>                                        <C>       <C>        <C>        <C>
Class A.................................    $ 56       $78       $ 102       $172
Class B (Assuming sale of all shares at
  end of period)........................    $ 69       $89       $ 121       $177
Class B (Assuming no sale of shares)....    $ 19       $59       $ 101       $177
Class C (Assuming sale of all shares at
  end of period)........................    $ 29       $58       $ 100       $217
Class C (Assuming no sale of shares)....    $ 19       $58       $ 100       $217
Class Y.................................    $  8       $26       $  44       $ 99
 
<CAPTION>

MID CAP FUND

EXAMPLE                                    1 YEAR    3 YEARS    5 YEARS    10 YEARS
- ----------------------------------------   ------    -------    -------    --------
<S>                                        <C>       <C>        <C>        <C>
Class A.................................    $ 59      $  90      $ 122       $214
Class B (Assuming sale of all shares at
  end of period)........................    $ 73      $ 102      $ 144       $225
Class B (Assuming no sale of shares)....    $ 23      $  72      $ 124       $225
Class C (Assuming sale of all shares at
  end of period)........................    $ 33      $  71      $ 122       $261
Class C (Assuming no sale of shares)....    $ 23      $  71      $ 122       $261
Class Y.................................    $ 13      $  39      $  68       $149
</TABLE>
    
 
                              --------------------
                               Prospectus Page 7

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                                 EXPENSE TABLE
                                  (Continued)
- --------------------------------------------------------------------------------
 
       

   
SMALL CAP FUND
    
 
   
<TABLE>
<CAPTION>

EXAMPLE                                    1 YEAR    3 YEARS    5 YEARS    10 YEARS
- ----------------------------------------   ------    -------    -------    --------
<S>                                        <C>       <C>        <C>        <C>
Class A.................................    $ 60      $  92      $ 126       $222
Class B (Assuming sale of all shares at
  end of period)........................    $ 74      $ 103      $ 145       $230
Class B (Assuming no sale of shares)....    $ 24      $  73      $ 125       $230
Class C (Assuming sale of all shares at
  end of period)........................    $ 34      $  72      $ 124       $266
Class C (Assuming no sale of shares)....    $ 24      $  72      $ 124       $266
Class Y.................................    $ 14      $  44      $  76       $167

<CAPTION>

GROWTH FUND

EXAMPLE                                    1 YEAR    3 YEARS    5 YEARS    10 YEARS
- ----------------------------------------   ------    -------    -------    --------
<S>                                        <C>       <C>        <C>        <C>
Class A.................................    $ 57       $81       $ 108       $184
Class B (Assuming sale of all shares at
  end of period)........................    $ 70       $92       $ 127       $192
Class B (Assuming no sale of shares)....    $ 20       $62       $ 107       $192
Class C (Assuming sale of all shares at
  end of period)........................    $ 30       $62       $ 107       $232
Class C (Assuming no sale of shares)....    $ 20       $62       $ 107       $232
Class Y.................................    $  9       $29       $  50       $112
</TABLE>
    
 
 ASSUMPTIONS MADE IN THE EXAMPLES

 O ALL CLASSES: Reinvestment of all dividends and other distributions;
 percentage amounts listed under "Annual Fund Operating Expenses" remain the
 same for years shown.

 o CLASS A SHARES: Deduction of the maximum 4.5% initial sales charge at the
 time of purchase.

   
 o CLASS B SHARES: Deduction of the maximum applicable contingent deferred sales
 charge at the time of sale, which declines over a period of six years. Ten-year
 figures assume that Class B shares convert to Class A shares at the end of the
 sixth year.
    

 o CLASS C SHARES: Deduction of a 1% contingent deferred sales charge for sales
 of shares within one year of purchase.
 
                              --------------------
                               Prospectus Page 8

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                        INVESTMENT OBJECTIVES & POLICIES
- --------------------------------------------------------------------------------
 
   
The Funds' investment objectives may not be changed without shareholder
approval. The Fund's other investment policies, except where noted, are not
fundamental and may be changed by their respective boards.
    
 
GROWTH AND INCOME FUND
 
The investment objective of Growth and Income Fund is current income and capital
growth. The Fund seeks to achieve this objective by investing primarily in
dividend-paying equity securities believed by Mitchell Hutchins to have the
potential for rapid earnings growth. Normally, the Fund invests at least 65% of
its total assets in such equity securities.
 
The Fund may invest up to 35% of its total assets in equity securities not
meeting these selection criteria, as well as in U.S. government bonds, corporate
bonds and money market instruments, including up to 10% in convertible bonds
rated below investment grade. Up to 25% of the Fund's total assets may be
invested in U.S. dollar-denominated equity securities and bonds of foreign
issuers that are traded on recognized U.S. exchanges or in the U.S.
over-the-counter ("OTC") market.
 
   
MID CAP FUND
    
 
   
The investment objective of Mid Cap Fund is long-term capital appreciation. The
Fund seeks to achieve this objective by investing at least 65% of its total
assets in common stocks of medium-sized (or mid cap) companies. Mitchell
Hutchins defines mid cap companies as those companies with market
capitalizations of at least $750 million and no more than $6 billion at the time
of purchase.
    
 
   
The Fund may invest up to 35% of its total assets in U.S. dollar-denominated
equity securities of foreign companies that trade on recognized U.S. stock
exchanges or on the U.S. OTC market. When Mitchell Hutchins believes it is
consistent with the Fund's investment objective of long-term capital
appreciation, the Fund may invest up to 35% of its total assets in common stocks
of companies that are larger or smaller than those of mid cap companies as
defined above, as well as in bonds and money market instruments.
    

   
SMALL CAP FUND
    
 
   
The investment objective of Small Cap Fund is long-term capital appreciation.
The Fund seeks to achieve this objective by investing, under normal conditions,
at least 65% of its total assets in equity securities of small cap companies.
Mitchell Hutchins defines small cap companies as those companies with market
capitalizations of up to $1 billion at the time of purchase.
    
 
   
The Fund may invest up to 35% of its total assets in equity securities of
companies that are larger than small cap companies, as well as in U.S.
government bonds, corporate bonds and money market instruments, including up to
10% of total assets in convertible bonds rated below investment grade. Up to 25%
of the Fund's total assets may be invested in U.S. dollar-denominated equity
securities of foreign issuers traded on recognized U.S. exchanges or in the U.S.
OTC market.
    
 
GROWTH FUND
 
The investment objective of Growth Fund is long-term capital appreciation. The
Fund seeks to achieve this objective by investing primarily in equity securities
issued by companies believed by Mitchell Hutchins to have substantial potential
for capital growth. Under normal circumstances, at least 65% of the Fund's total
assets are invested in equity securities.
 
The Fund may invest up to 35% of its total assets in U.S. government bonds and
in corporate bonds (including up to 10% in bonds and convertible securities
rated below investment grade). Up to 25% of the Fund's total assets may be
invested in U.S. dollar-denominated equity securities and bonds of foreign
issuers that are traded on recognized U.S. exchanges or in the U.S. OTC market.
 
                                   *  *  *  *
 
   
As with any mutual fund, there can be no assurance that any of these Funds will
achieve its investment objective. Each Fund's net asset value fluctuates based
upon changes in the value of its portfolio securities.
    
 
                              --------------------
                               Prospectus Page 9

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                        INVESTMENT PHILOSOPHY & PROCESS
- --------------------------------------------------------------------------------
 
GROWTH AND INCOME FUND
 
   
In seeking to balance capital growth with current income, Mitchell Hutchins
follows a disciplined investment process that relies on the Mitchell Hutchins
Equity Research Team and the Mitchell Hutchins Factor Valuation Model. In order
to fulfill the income component, the Fund normally invests at least 65% of its
total assets in dividend-paying stocks.
    
 
The Model screens a universe of small to large cap companies from ten different
business sectors to identify undervalued companies with strong earnings momentum
that rank well in three measures:
 
o VALUE: projected dividends, cash flow, earnings and book value;
 
o MOMENTUM: earnings and price to identify companies that could surprise on the
  upside; and
 
o ECONOMIC SENSITIVITY: to forecast how different equity securities and
  industries may perform under various economic scenarios.
 
   
The equity securities in the Model's universe are screened twice a month. Then
the Team takes a closer look at those equity securities that rank in the top 20%
of the Model's universe based on value and momentum. The Team applies
traditional fundamental analysis and may speak to the management of these
companies, as well as to the management of their competitors. Based on the
Team's findings in the context of Mitchell Hutchins' economic forecast, Mitchell
Hutchins decides whether to purchase or sell equity securities for the Fund. In
seeking capital appreciation, the Fund would also invest in bonds when, for
instance, Mitchell Hutchins anticipates that market interest rates may decline
or credit factors or ratings affecting particular issuers may improve.
    
 
   
MID CAP FUND
    
 
   
In selecting mid cap equity securities with long-term capital appreciation
potential, Mitchell Hutchins follows a disciplined investment process that
relies on the Mitchell Hutchins Equity Research Team and the Mitchell Hutchins
Factor Valuation Model. The Model screens a universe of companies from ten
business sectors to identify undervalued companies with strong earnings momentum
that rank well in three measures:
    
   
o VALUE: projected dividends, cash flow, earnings and book value;
    
 
   
o MOMENTUM: earnings and prices to identify companies that could surprise on the
  upside; and
    
 
   
o ECONOMIC SENSITIVITY: to forecast how different equity securities and
  industries may perform under various economic scenarios.
    
 
   
The equity securities in the Model's universe are screened twice a month. Then
the Team takes a closer look at those equity securities that meet the
capitalization requirements of the Fund and that rank in the top 20% of the
Model's universe based on value and momentum. The Team applies traditional
fundamental analysis and may speak to the management of these companies, as well
as to the management their competitors. Based on the Team's findings in the
context of Mitchell Hutchins' economic forecast, Mitchell Hutchins decides
whether to purchase or sell equity securities for the Fund.
    
 
   
SMALL CAP FUND
    
 
   
In selecting small cap equity securities with the potential for capital
appreciation, Mitchell Hutchins follows a disciplined investment process that
relies on the Mitchell Hutchins Factor Valuation Model and the Mitchell Hutchins
Equity Research Team. The Model screens a universe of small to large cap
companies from ten different business sectors to identify undervalued companies
with strong earnings momentum that rank well in three measures:
    
 
   
o VALUE: projected dividends, cash flow, earnings and book value;
    
 
   
o MOMENTUM: earnings and price to identify companies that could surprise on the
  upside; and
    
 
   
o ECONOMIC SENSITIVITY: to forecast how different equity securities and
  industries may perform under various economic scenarios.
    
 
   
Through this screening process, the Model identifies the equity securities of
small cap companies ranking in the top 20% of the universe based on value and
momentum. Then the Team applies traditional fundamental analysis on the equity
securities of these small cap companies. The Team may speak to the management of
these companies, as well as to the management of their competitors. Based on the
Team's findings in the context of Mitchell Hutchins' economic
    
 
                              --------------------
                               Prospectus Page 10

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund

   
forecast, Mitchell Hutchins decides whether to purchase or sell equity
securities for the Fund. In seeking capital appreciation, the Fund would also
invest in bonds when, for instance, Mitchell Hutchins anticipates that market
interest rates may decline or credit factors or ratings affecting particular
issuers may improve.
    
 
GROWTH FUND
 
   
In selecting equity securities with the potential for above-average growth in
earnings, cash flow and/or book value that are selling at a reasonable value
relative to that growth, Mitchell Hutchins follows a disciplined investment
process that relies on the Mitchell Hutchins Equity Research Team and combines a
"bottom-up," stock-by-stock approach with a modified, growth-oriented Mitchell
Hutchins Factor Valuation Model. The Fund can invest in companies with large
market capitalizations, medium-sized companies and smaller companies that are
aggressively expanding their businesses. This flexibility allows the Fund to
invest more of its assets in companies that have greater earnings growth
potential regardless of their market capitalizations. When investing in small
cap companies, the Team places more emphasis on the trading volume of the
company's stock.
    
 
The modified, growth-oriented Model, which the Team generally utilizes as part
of the stock selection process, screens a universe of small to large
capitalization companies from ten different business sectors to identify
companies that rank especially well on growth variables, including earnings
momentum, stock price movement, economic sensitivity and other growth factors.
 
   
The equity securities in the Model's universe are screened twice a month. Then
the Team takes a closer look at those equity securities that rank in the top 20%
of the Model's universe based on earnings growth. The Team applies traditional
fundamental analysis and may speak to the management of these companies, as well
as to the management of their competitors. Based on the Team's findings in the
context of Mitchell Hutchins' economic forecast, Mitchell Hutchins decides
whether to purchase or sell equity securities for the Fund. In seeking capital
appreciation, the Fund would also invest in bonds when, for instance, Mitchell
Hutchins anticipates that market interest rates may decline or credit factors or
ratings affecting particular issuers may improve.
    
 
                              --------------------
                               Prospectus Page 11

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
       
   
                                  PERFORMANCE
    
- --------------------------------------------------------------------------------
 
   
These charts show the total returns for the Funds by calendar year. Sales
charges have not been deducted from total returns for Class A, B and C shares.
Returns would be lower if sales charges were deducted. Average annual total
returns both before and after deducting the maximum sales charges are shown
below in the tables that follow the performance charts. Past results are not a
guarantee of future results. Mid Cap Fund had no Class Y shares outstanding
during the calendar years shown.
    
 
GROWTH AND INCOME FUND
 
Year            Class A          Class B          Class C          Class Y
- ----            -------          -------          -------          -------

1988            17.83%            0.00%            0.00%            0.00%

1989            24.59%            0.00%            0.00%            0.00%

1990            (1.01)%           0.00%            0.00%            0.00%

1991            35.34%           17.85%            0.00%            0.00%

1992             3.90%            3.09%            9.58%            5.15%

1993            (2.59)%          (3.31)%          (3.30)%          (2.31)%

1994            (5.87)%          (6.62)%          (6.61)%          (5.57)%

1995            33.21%           32.18%           32.21%           33.63%

1996            23.46%           22.55%           22.55%           23.81%

1997            31.86%           30.79%           30.77%           32.56%
                 

   
The 1991 return for Class B shares represents the period from inception on
July 1, 1991 through December 31, 1991. The 1992 return for Class C shares
represents the period from inception on July 2, 1992 through December 31, 1992.
The 1992 return for Class Y shares represents the period from inception on
February 12, 1992 through December 31, 1992.
    
 
   
<TABLE>
<CAPTION>

AVERAGE ANNUAL RETURNS
  As of August 31, 1998
                                       CLASS A      CLASS B      CLASS C      CLASS Y
                                      ----------   ----------   ----------   ----------
<S>                                   <C>          <C>          <C>          <C>
Inception Date.....................    12/20/83      7/1/91       7/2/92      2/12/92

ONE YEAR
  Before deducting maximum sales
     charges.......................     (3.51)%      (4.28)%      (4.23)%      (3.24)%
  After deducting maximum sales
     charges.......................     (7.85)%      (8.67)%      (5.11)%      (3.24)%

FIVE YEARS
  Before deducting maximum sales
     charges.......................     13.67%       12.79%       12.81%       13.98%
  After deducting maximum sales
     charges.......................     12.63%       12.54%       12.81%       13.98%

TEN YEARS (OR LIFE OF CLASS)
  Before deducting maximum sales
     charges.......................     12.74%       11.25%       11.18%       10.80%
  After deducting maximum sales
     charges.......................     12.22%       11.25%       11.18%       10.80%
</TABLE>
    
 
                              --------------------
                               Prospectus Page 12

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
       
   
MID CAP FUND
    

Year            Class A          Class B          Class C  
- ----            -------          -------          -------
                                                           
1992             9.95%            9.30%           17.66%   
                                                           
1993            16.10%           15.19%           15.20% 
                                                           
1994            (1.36)%          (2.03)%          (2.13)%
                                                           
1995            28.79%           27.73%           27.82%   
                                                           
1996            17.87%           17.01%           16.98%   
                                                           
1997            15.14%           14.28%           14.39%   
 
   
The 1992 returns for each class represent the period from its inception to
December 31, 1992. The inception date for Class A and B shares was April 7,
1992. The inception date for Class C shares was July 2, 1992. The Fund did not
have any Class Y shares outstanding during the calendar year 1997. Mitchell
Hutchins assumed all investment management responsibilities for the Fund on
May 1, 1998. Prior to that date, the Fund's assets were managed by a sub-
adviser. Thus, while past performance is never a guarantee of future results,
information for period prior to that date may be less relevant than otherwise
would be the case.
    
 
   
<TABLE>
<CAPTION>

AVERAGE ANNUAL TOTAL RETURNS
  As of August 31, 1998
                                       CLASS A      CLASS B      CLASS C      CLASS Y
                                      ----------   ----------   ----------   ----------
<S>                                   <C>          <C>          <C>          <C>
Inception Date.....................     4/7/92       4/7/92       7/2/92      3/17/98

ONE YEAR
  Before deducting maximum sales
     charges.......................    (20.28)%     (20.91)%     (20.89)%       N/A
  After deducting maximum sales
     charges.......................    (23.88)%     (23.20)%     (21.33)%       N/A

FIVE YEARS
  Before deducting maximum sales
     charges.......................      8.21%        7.39%        7.38%         N/A
  After deducting maximum sales
     charges.......................      7.21%        7.18%        7.38%         N/A

LIFE OF CLASS
  Before deducting maximum sales
     charges.......................      9.33%        8.50%        10.14%      (26.82)%
  After deducting maximum sales
     charges.......................      8.55%        8.50%        10.14%      (26.82)%
</TABLE>
    
 
                              --------------------
                               Prospectus Page 13

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
   
SMALL CAP FUND
    

Year                  Class A          Class B          Class C          Class Y
- ----                  -------          -------          -------          -------

2/1/93 - 12/31/93      7.68%            6.91%            6.97%            0.00%

1994                  (1.20)%          (1.96)%          (1.96)%           0.00% 

1995                  16.81%           15.90%           15.84%            0.00%

1996                  17.45%           16.50%           16.52%           15.51%

1997                  27.38%           26.45%           26.47%           27.81%
 
   
The 1993 returns for Class A, Class B and Class C shares represent the period
from inception on February 1, 1993 through December 31, 1993. The 1996 return
for Class Y shares represents the period from inception on July 26, 1996 through
December 31, 1996.
    
 
   
<TABLE>
<CAPTION>

AVERAGE ANNUAL RETURNS
  As of July 31, 1998
                                       CLASS A      CLASS B      CLASS C      CLASS Y
                                      ----------   ----------   ----------   ----------
<S>                                   <C>          <C>          <C>          <C>
Inception Date.....................     2/1/93       2/1/93       2/1/93      7/26/96

ONE YEAR
  Before deducting maximum sales
     charges.......................     8.45%        7.60%        7.61%        8.74%
  After deducting maximum sales
     charges.......................     3.58%        2.69%        6.63%        8.74%

FIVE YEARS
  Before deducting maximum sales
     charges.......................     12.74%       11.90%       11.88%        N/A
  After deducting maximum sales
     charges.......................     11.71%       11.64%       11.88%        N/A

LIFE
  Before deducting maximum sales
     charges.......................     11.98%       11.14%       11.12%       21.58%
  After deducting maximum sales
     charges.......................     11.05%       11.03%       11.12%       21.58%
</TABLE>
    
 
                              --------------------
                               Prospectus Page 14

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
GROWTH FUND
 
Year            Class A          Class B          Class C          Class Y
- ----            -------          -------          -------          -------

1988            22.05%            0.00%            0.00%            0.00%

1989            34.27%            0.00%            0.00%            0.00%

1990            (7.72)%           0.00%            0.00%            0.00%

1991            47.61%           22.18%            0.00%           12.21%

1992             4.15%            3.30%           12.73%            4.42%

1993            19.17%           18.26%           18.19%           19.47% 

1994           (10.90)%         (11.61)%         (11.58)%         (10.64)%

1995            33.02%           31.95%           32.00%           33.40%

1996            14.11%           13.24%           13.18%           14.48%

1997            17.01%           16.17%           16.13%           17.32%
                 
   
The 1991 return for Class B shares represents the period from inception on
July 1, 1991 through December 31, 1991. The 1992 return for Class C shares
represents the period from inception on July 2, 1992 through December 31, 1992.
The 1991 return for Class Y shares represents the period from inception on
August 26, 1991 through December 31, 1991.
    
 
   
<TABLE>
<CAPTION>

AVERAGE ANNUAL RETURNS
  As of August 31, 1998
                                       CLASS A      CLASS B      CLASS C      CLASS Y
                                      ----------   ----------   ----------   ----------
<S>                                   <C>          <C>          <C>          <C>
Inception Date.....................    3/18/85       7/1/91       7/2/92      8/26/91

ONE YEAR
  Before deducting maximum sales
     charges.......................      3.37%        2.55%        2.59%         3.61%
  After deducting maximum sales
     charges.......................     (1.27)%      (1.21)%       1.83%         3.61%

FIVE YEARS
  Before deducting maximum sales
     charges.......................     10.06%        9.20%        9.21%        10.37%
  After deducting maximum sales
     charges.......................      9.05%        8.94%        9.21%        10.37%

TEN YEARS (OR LIFE OF CLASS)
  Before deducting maximum sales
     charges.......................     13.75%       11.41%       11.17%        11.31%
  After deducting maximum sales
     charges.......................     13.23%       11.41%       11.17%        11.31%
</TABLE>
    
 
                              --------------------
                               Prospectus Page 15

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
       
   
PERFORMANCE INFORMATION
    
 
The Funds perform a standardized computation of annualized total return and may
show this return in advertisements or promotional materials. Standardized return
shows the change in value of an investment in a Fund as a steady compound annual
rate of return. Actual year-by-year returns fluctuate and may be higher or lower
than standardized return. Standardized returns for Class A shares of the Funds
reflect deduction of the Funds' maximum initial sales charge of 4.5% at the time
of purchase, and standardized returns for the Class B and Class C shares of the
Funds reflect deduction of the applicable contingent deferred sales charge
imposed on the sale of shares held for the period. One-, five- and ten-year
periods will be shown, unless the Fund or class has been in existence for a
shorter period. If so, returns will be shown for the period since inception,
known as "Life." Total return calculations assume reinvestment of dividends and
other distributions.
 
The Funds may use other total return presentations in conjunction with
standardized return. These may cover the same or different periods as those used
for standardized return and may include cumulative returns, average annual
rates, actual year-by-year rates or any combination thereof. Non-standardized
return does not reflect initial or contingent deferred sales charges and would
be lower if such charges were deducted.
 
Total return information reflects past performance and does not indicate future
results. The investment return and principal value of shares of the Funds will
fluctuate. The amount investors receive when selling shares may be more or less
than what they paid. Further information about each Fund's performance is
contained in its Annual Report to Shareholders, which may be obtained without
charge by contacting the Fund, your PaineWebber investment executive or
PaineWebber's correspondent firms or by calling toll-free 1-800-647-1568.
 
- --------------------------------------------------------------------------------
                             THE FUNDS' INVESTMENTS
- --------------------------------------------------------------------------------
 
EQUITY SECURITIES include common stocks, preferred stocks and securities that
are convertible into them, including convertible debentures and notes and common
stock purchase warrants and rights. 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 is actually
equity in a company, like common stock. Convertible securities may include
debentures, notes and preferred equity securities, which are convertible into
common stock.
 
BONDS (including notes and debentures) are used by corporations and governments
to borrow money from investors. The issuer pays the investor a fixed or variable
rate of interest and must repay the amount borrowed at maturity. Bonds have
varying degrees of investment risk and varying levels of sensitivity to changes
in interest rates.
 
RISKS
 
Under normal circumstances, each Fund invests primarily in equity securities.
Following is a discussion of the risks of these investments and other risks that
are common to each Fund:
 
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
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.
 
   
FOREIGN SECURITIES.  Each Fund may invest a portion of its assets in U.S.
dollar-denominated securities of foreign companies that are traded on recognized
U.S. exchanges or in the U.S. OTC market. Investing in the securities of foreign
companies may involve more risks than investing in securities of U.S. companies.
Their value is subject to economic and political developments in the countries
where the companies operate and to changes in foreign currency values. Values
may also be affected by foreign tax laws, changes in foreign economic or
monetary policies, exchange control regulations and regulations involving
prohibitions on the repatriation of foreign currencies.
    
 
In general, less information may be available about foreign companies than about
U.S. companies, and foreign companies are generally not subject to the same
accounting, auditing and financial reporting standards as are U.S. companies.
 
                              --------------------
                               Prospectus Page 16

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
   
INTEREST RATE AND CREDIT RISKS.  Bonds are subject to interst rate risk and
credit risk. Interest rate risk is the risk that interest rates will rise and
bond prices will fall, lowering the value of a Fund's bond investments.
Long-term bonds are generally more sensitive to interest rate changes than
short-term bonds. Credit risk is the risk that the issuer or a guarantor may be
unable to pay interest or repay principal on the bond. Credit risk can be
affected by many factors, including adverse changes in the issuer's own
financial condition or in economic conditions.
    
 
   
BOND RATINGS; NON-INVESTMENT GRADE (LOWER-RATED) BONDS.  Investment grade bonds
are those rated within the four highest categories by Standard & Poor's, a
division of The McGraw-Hill Companies, Inc. ("S&P"), or Moody's Investors
Service, Inc. ("Moody's"). Moody's fourth highest category (Baa) includes
securities which, in its opinion, have speculative features. For example,
changes in economic conditions or other circumstances are more likely to lead to
a weakened capacity to make principal and interest payments than is the case for
higher-rated debt instruments. The Funds may also invest in securities that are
comparably rated by another ratings agency and in unrated securities if they are
deemed to be of comparable quality. Credit ratings attempt to evaluate the
safety of principal and interest payments and do not evaluate the volatility of
a bond's value or its liquidity. There is a risk that bonds will be downgraded
by rating agencies. The ratings agencies may fail to make timely changes in
credit ratings in response to subsequent events, so that an issuer's current
financial condition may be better or worse than the rating indicates. 
    
 
Bonds rated below investment grade are deemed by the ratings agencies to be
predominantly speculative regarding the issuer's ability to pay principal and
interest and may involve major risk exposure to adverse economic conditions.
They are also known as "junk bonds." During an economic downturn or period of
rising interest rates, issuers of these securities may experience financial
stress that adversely affects their ability to pay interest and principal and
may increase the possibility of default. Lower-rated bonds are frequently
unsecured by collateral and will not receive payment until more senior claims
are paid in full. The market for lower-rated bonds is thinner and less active,
which may limit the Funds' ability to sell such bonds at a fair value in
response to changes in the economy or financial markets.
 
   
Growth and Income Fund may invest up to 10% of its total assets in
non-investment grade convertible securities rated as low as B by S&P or Moody's
or comparably rated by another ratings agency.
    
 
   
Mid Cap Fund may only purchase investment grade bonds.
    
 
   
Small Cap Fund may invest up to 10% of its total assets
in non-investment grade convertible securities rated as low as B by S&P or
Moody's or comparably rated by another ratings agency.
    
 
   
Growth Fund may invest up to 10% of its total assets in non-investment grade
bonds and convertible securities rated as low as B+ by S&P, B1 by Moody's or
comparably rated by another ratings agency.
    
 
DERIVATIVES.  Some of the instruments in which the Funds may invest may be
referred to as "derivatives," because their value depends on (or "derives" from)
the value of an underlying asset, reference rate or index. These instruments
include options, futures contracts and similar instruments that may be used in
hedging strategies. There is only limited consensus as to what constitutes a
"derivative" security. The market value of derivative instruments and securities
sometimes is more volatile than that of other investments, and each type of
derivative instrument may pose its own special risks. Mitchell Hutchins takes
these risks into account in its management of the Funds.
 
COUNTERPARTIES.  The Funds 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 the respective boards of trustees, monitors and
evaluates the creditworthiness of the parties with which each Fund does
business.
 
   
YEAR 2000 RISKS. Like other mutual funds and other financial and business
organizations around the world, the Funds could be adversely affected if the
computer systems used by Mitchell Hutchins, other service providers and entities
with computer systems that are linked to Fund records do not properly process
and calculate date-related information and data from and after January 1, 2000.
This is commonly known as the "Year 2000 Issue." Mitchell Hutchins is taking
steps that it believes are reasonably designed to address the Year 2000 Issue
with respect to the computer systems that it uses and to obtain satisfactory
assurances that comparable steps are being taken by each Fund's other major
service providers. However, there can be no assurance that these steps will be
sufficient to avoid any adverse impact on a Fund.
    
 
   
Similarly, the companies in which the Funds invest and trading systems used by
the Funds could be adversely affected by the Year 2000 Issue. The ability of a
company or trading system to respond successfully to the Year 2000 Issue
requires both technological sophistication and diligence, and there can be no
assurance that any steps taken will be sufficient to avoid an adverse impact.
    
 
   
                                   *  *  *  *
    
 
                              --------------------
                               Prospectus Page 17

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
   
In addition to these general risks, Mid Cap Fund and Small Cap Fund are also
subject to the following risk consideration:
    
 
   
MID CAP AND SMALL CAP COMPANIES.  These companies may be more vulnerable than
larger companies to adverse business or economic developments. These companies
may also have limited product lines, markets or financial resources and may be
dependent on a relatively small management group. Securities of such companies
may be less liquid and more volatile than securities of larger companies or the
market averages in general and, therefore, may involve greater risk than
investing in larger companies. In addition, these companies may not be
well-known to the investing public, may not have institutional ownership and may
have only cyclical, static or moderate growth prospects.
    
 
   
INVESTMENT TECHNIQUES AND STRATEGIES
    
 
   
STRATEGIES USING DERIVATIVE INSTRUMENTS.  Each Fund may use certain instruments
and strategies, which may include options (both exchange traded and OTC) and
futures contracts intended to reduce the overall risk of its investments
("hedge"). New financial products and risk management techniques continue to be
developed and may be used if consistent with the Funds' investment objectives
and policies. The Statement of Additional Information for the Funds contains
further information on these strategies.
    
 
The Funds might not use any of these derivatives, and there can be no assurance
that any strategy used will succeed. If Mitchell Hutchins is incorrect in its
judgment on market values, interest rates or other economic factors in using a
hedging strategy, a Fund may have lower net income and a net loss on the
investment. Each of these strategies involves certain risks, which include:
 
o the fact that the skills needed to use hedging instruments are different from
  those needed to select securities for the Funds,
 
o the possibility of imperfect correlation, or even no correlation, between
  price movements of hedging instruments and price movements of the securities
  being hedged,
 
o possible constraints placed on a Fund's ability to purchase or sell portfolio
  investments at advantageous times due to the need for the Fund to maintain
  "cover" or to segregate securities, and
 
o the possibility that the Fund is unable to close out or liquidate its hedged
  position.
 
LENDING PORTFOLIO SECURITIES.  Each Fund may lend its securities to qualified
broker-dealers or institutional investors in an amount up to 33 1/3% of that
Fund's total assets taken at market value. Lending securities enables a Fund to
earn additional income, but could result in a loss or delay in recovering these
securities.
 
PORTFOLIO TURNOVER.  Each Fund's portfolio turnover rate may vary greatly from
year to year and will not be a limiting factor when Mitchell Hutchins deems
portfolio changes appropriate. A higher turn-over rate (100% or more) for a Fund
will involve correspondingly greater transaction costs, which will be borne
directly by the Fund, and may increase the potential for short-term capital
gains.
 
   
DEFENSIVE AND TEMPORARY POSITIONS. When Mitchell Hutchins believes that unusual
market or economic circumstances warrant a defensive posture, a Fund may
temporarily commit all or any portion of its assets to cash or investment grade
money market instruments, including repurchase agreements. Each Fund may invest
up to 35% of its total assets in investment grade money market instruments
and/or cash for liquidity purposes, to reinvest cash collateral from securities
lending or pending investment in other securities.
    
 
   
Repurchase agreements are transactions in which a Fund purchases obligations
from a bank or securities dealer or its affiliates and simultaneously commits to
resell the obligations to that counterparty, usually no more than seven days
after purchase. Repurchase agreements carry certain risks not associated with
direct investments in securities, including possible decline in the market value
of the underlying obligations. Repurchase agreements involving obligations other
than U.S. government securities (such as commercial paper and corporate bonds)
may be subject to special risks and may not have the benefit of certain
protections in the event of the counterparty's insolvency. If the seller or
guarantor becomes insolvent, a Fund may suffer delays, costs and possible
losses.
    
 
   
ILLIQUID SECURITIES.  Growth and Income Fund, Mid Cap Fund and Growth Fund each
may invest up to 10% of its net assets, and Small Cap Fund up to 15% of its net
assets, in illiquid securities. These include certain cover for OTC options and
securities whose disposition is restricted under the federal securities laws.
The Funds do not consider securities that are eligible for resale pursuant to
SEC Rule 144A to be illiquid securities if Mitchell Hutchins has determined such
securities to be liquid, based upon the trading markets for the securities under
procedures approved by the boards. The lack of a secondary market for illi-
quid 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.
    
 
OTHER INFORMATION.  Each Fund may purchase securities on a when-issued basis or
may purchase or sell
 
                              --------------------
                               Prospectus Page 18

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund

   
securities for delayed delivery. A Fund generally would not pay for such
securities or start earning interest on them until they are delivered, but it
would immediately assume the risks of ownership, including the risk of price
fluctuation.
    
 
Each Fund may borrow money for temporary or emergency purposes but not in excess
of 10% of its total assets, including reverse repurchase agreements up to an
aggregate value of 5% (10% for Small Cap Fund) of its net assets.
 
- --------------------------------------------------------------------------------
                        FLEXIBLE PRICING(Service Mark)
- --------------------------------------------------------------------------------
 
   
Each Fund offers through this Prospectus four classes of shares that differ in
terms of sales charges and expenses. An eligible investor can select the class
that is best suited to his or her investment needs, based upon the holding
period and the amount of investment.
    
 
CLASS A SHARES
 
   
HOW PRICE IS CALCULATED: The price is the net asset value plus the initial sales
charge (the maximum is 4.5% of the public offering price) next calculated after
PaineWebber's New York City headquarters or PFPC Inc., the Funds' transfer agent
("Transfer Agent"), receives the purchase order. Although investors pay an
initial sales charge when they buy Class A shares, the ongoing expenses for this
class are lower than those of Class B and Class C shares. Class A shares sales
charges are calculated as follows:
    
 
<TABLE>
<CAPTION>
                                             SALES CHARGE AS A PERCENTAGE OF:           DISCOUNT TO SELECTED
                                         ----------------------------------------       DEALERS AS PERCENTAGE
AMOUNT OF INVESTMENT                     OFFERING PRICE       NET AMOUNT INVESTED       OF OFFERING PRICE
- -----------------------------------      --------------       -------------------       ---------------------
<S>                                      <C>                  <C>                       <C>
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>
 
- ------------------
(1) A contingent deferred sales charge of 1% 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. However, Class A shares representing reinvestment of any dividends or
    other distributions are not subject to the 1% charge. Withdrawals under the
    Systematic Withdrawal Plan are not subject to this charge. However,
    investors may not withdraw more than 12% of the value of the Fund account
    under the Plan in the first year after purchase.
 
(2) Mitchell Hutchins pays 1% to PaineWebber.
 
SALES CHARGE REDUCTIONS AND WAIVERS
 
Investors purchasing Class A shares in more than one PaineWebber mutual fund may
combine those purchases to get a reduced sales charge. Investors who already own
Class A shares in one or more PaineWebber mutual funds may combine the amount
they are currently purchasing with the value of such previously owned shares to
qualify for a reduced sales charge. To determine the sales charge reduction,
please refer to the chart above.
 
Investors may also qualify for a reduced sales charge when they combine their
purchases with those of:
 
o their spouses, parents or children under age 21;
 
o their Individual Retirement Accounts (IRAs);
 
o certain employee benefit plans, including 401(k) plans;
 
o any company controlled by the investor;
 
o trusts created by the investor;
 
o Uniform Gifts to Minors Act/Uniform Transfers to Minors Act accounts created
  by the investor or group of investors for the benefit of the investors'
  children; or
 
o accounts with the same adviser.
 
Employers who own Class A shares for one or more of their qualified retirement
plans may also qualify for the reduced sales charge.
 
                              --------------------
                               Prospectus Page 19

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
The sales charge will not apply when the investor:
 
o is an employee, director, trustee or officer of PaineWebber, its affiliates or
  any PaineWebber mutual fund;
 
o is the spouse, parent or child of any of the above;
 
o buys these shares through a PaineWebber investment executive who was formerly
  employed as a broker with a competing brokerage firm that was registered as a
  broker-dealer with the SEC; and
 
   
     o the investor was the investment executive's client at the competing
       brokerage firm;
    
 
     o within 90 days of buying Class A shares in a Fund, the investor sells
       shares of one or more mutual funds that (a) were principally underwritten
       by the competing brokerage firm or its affiliates and (b) the investor
       either paid a sales charge to buy those shares, paid a contingent
       deferred sales charge when selling them or held those shares until the
       contingent deferred sales charge was waived; and
 
     o the amount that the investor purchases does not exceed the total amount
       of money the investor received from the sale of the other mutual fund;
 
o is a certificate holder of unit investment trusts sponsored by PaineWebber and
  has elected to have dividends and other distributions from that investment
  automatically invested in Class A shares;
 
o is an employer establishing 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 ("Code") (each a "qualified
  plan"). (This waiver is subject to minimum requirements, with respect to the
  number of employees and investment amount, established by Mitchell Hutchins.
  Currently, the plan must have 50 or more eligible employees and at least
  $1 million in plan assets.) 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;
 
o is a participant in the PaineWebber Members Only Program(Trademark). 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;
 
o is 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 1% of the amount invested;
 
   
o acquires Class A 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 Class A 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 supplement a rebalancing feature of such an investment
  program, the minimum subsequent investment requirement is also waived;
    
 
   
o acquires Class A shares in connection with a reorganization pursuant to which
  a Fund acquires substantially all of the assets and liabilities of another
  investment company in exchange solely for shares of the Fund; or
    
 
   
o acquires Class A 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 met certain
  other conditions described in its prospectus.
    
 
For more information on how to get any reduced sales charge, investors should
contact a PaineWebber investment executive or a correspondent firm or call
1-800-647-1568. Investors must provide satisfactory information to PaineWebber
or the Fund if they seek any of these sales charge reductions or waivers.
 
CLASS B SHARES
 
HOW PRICE IS CALCULATED:  The price is the net asset value next calculated after
PaineWebber's New York City headquarters or the Transfer Agent receives the
purchase order. The ongoing expenses investors pay for Class B shares are higher
than those of Class A shares. Because investors do not pay an initial sales
charge when they buy Class B shares, 100% of their purchase is immediately
invested.
 
Depending on how long they own their Fund investment, investors may have to pay
a sales charge when they sell their Fund shares. This sales charge is called a
"contingent deferred sales charge." The amount of the charge depends on how long
the investor owned the shares. The sales charge is calculated by multiplying the
offering price (net asset value of the shares at the time of purchase) or the
net asset value at the time of sale by the shareholder, whichever is less, by
the percentage shown on the following table. Investors who
own shares for more than six years do not have to pay a sales charge when
selling those shares.
 
                              --------------------
                               Prospectus Page 20

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund

 
<TABLE>
<CAPTION>

    IF THE INVESTOR        PERCENTAGE BY WHICH THE SHARES'
  SELLS SHARES WITHIN:     NET ASSET VALUE IS MULTIPLIED:
- ------------------------   -------------------------------
<S>                        <C>
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
</TABLE>
 
CONVERSION OF CLASS B SHARES
 
Class B shares automatically convert to the appropriate number of Class A shares
of equal dollar value after the investor has owned them for six years. Dividends
and other distributions paid to the investor by the Fund in the form of
additional Class B shares will also convert to Class A shares on a pro-rata
basis. This benefits shareholders because Class A shares have lower ongoing
expenses than Class B shares. If the investor has exchanged Class B shares
between PaineWebber funds, the Fund uses the purchase date at which the initial
investment was made to determine the conversion date.
 
MINIMIZING THE CONTINGENT DEFERRED SALES CHARGE
 
When investors sell Class B shares they have owned for less than six years, the
Fund automatically will minimize the sales charge by assuming the investors are
selling:
 
o First, Class B shares owned through reinvested dividends and capital gain
  distributions; and
 
o Second, Class B shares held in the portfolio the longest.
 
WAIVERS OF THE CONTINGENT DEFERRED SALES CHARGE
 
The contingent deferred sales charge will not apply to:
 
   
o sales of shares under a Fund's Systematic Withdrawal Plan (investors may not
  withdraw annually more than 12% of the value of the Fund account under the
  Plan);
    
 
o a distribution from an IRA, a self-employed individual retirement plan ("Keogh
  Plan") or a custodial account under section 403(b) of the Code (after the
  investor reaches age 59 1/2);
 
o a tax-free return of an excess IRA contribution;
 
o a tax-qualified retirement plan distribution following retirement; or
 
o Class B shares sold within one year of an investor's death if the investor
  owned the shares at the time of death either as the sole shareholder or with
  his or her spouse as a joint tenant with the right of survivorship.
 
   
Investors must provide satisfactory information to PaineWebber or the Funds if
they seek any of these waivers.
    
 
CLASS C SHARES
 
   
HOW PRICE IS CALCULATED:  The price of Class C shares is the net asset value
next calculated after PaineWebber's New York City headquarters or the Transfer
Agent receives the purchase order. The ongoing expenses of Class C shares are
higher than those of Class A shares. Because investors do not pay an initial
sales charge when they buy Class C shares, 100% of their purchase is immediately
invested. Class C shares never convert to any other class of shares.
    
 
A contingent deferred sales charge of 1% of the net asset value of the shares at
the time of purchase or sale, whichever is less, is charged on sales of shares
made within one year of the purchase date. Other PaineWebber mutual funds may
impose a different contingent deferred sales charge on Class C shares sold
within one year of the purchase date. A sale of Class C shares acquired through
an exchange and held less than one year will be subject to the same contingent
deferred sales charge that would have been imposed on the Class C shares of the
PaineWebber mutual fund originally purchased. Class C shares representing
reinvestment of any dividends or capital gains will not be subject to the 1%
charge. Withdrawals under the Systematic Withdrawal Plan also will not be
subject to this charge. However, investors may not withdraw more than 12% of the
value of the Fund account under the Plan in the first year after purchase.
 
CLASS Y SHARES
 
HOW PRICE IS CALCULATED:  Eligible investors may purchase Class Y shares at the
net asset value next calculated after PaineWebber's New York City headquarters
or the Transfer Agent receives the purchase order. Because investors do not pay
an initial sales charge when they buy Class Y shares, 100% of their purchase is
immediately invested. No contingent deferred sales charge is imposed on Class Y
shares, and the ongoing expenses for Class Y shares are lower than for the other
classes because Class Y shares are not subject to 12b-1 distribution or service
fees.
 
LIMITED GROUPS OF INVESTORS.  Only the following investors are eligible to buy
Class Y shares:
 
   
o a participant in the PW Program listed below, when Class Y shares are
  purchased through that PW Program;
    
 
o an investor who buys $10 million or more at any one time in any combination of
  PaineWebber mutual funds in the Flexible Pricing(Service Mark) System;

                              --------------------
                               Prospectus Page 21

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
 
       
   
o a qualified plan that has either
    
 
   
     o 5,000 or more eligible employees or
    
 
   
     o $50 million or more in assets;
    
 
o an investment company advised by PaineWebber or an affiliate of PaineWebber;
  and
 
   
o for Growth and Income Fund and Growth Fund, the trustee of the PaineWebber
  401(k) Plus Plan ("PW 401(k) Plan"), formerly known as PaineWebber Savings
  Investment Plan ("PW SIP")
    
 
   
PACE MULTI-ADVISOR PROGRAM:  An investor who participates in the PACE
Multi-Advisor Program is eligible to purchase Class Y shares. The PACE
Multi-Advisor Program is an advisory program sponsored by PaineWebber that
provides comprehensive investment services, including investor profiling, a
personalized asset allocation strategy using an appropriate combination of
funds, and a quarterly investment performance review. Participation in the PACE
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 investment executive or PaineWebber's
correspondent firms for more information concerning mutual funds that are
available through the PACE Multi-Advisor Program.
 
   
PURCHASES BY THE TRUSTEE OF THE
PW 401(K) PLAN
    
 
   
Class Y shares of Growth Fund and Growth and Income Fund also are offered for
sale to the trustee of the PW 401(k) Plan, a defined contribution plan sponsored
by Paine Webber Group Inc. ("PW Group"). The trustee of the PW 401(k) Plan
purchases Class Y shares to implement the investment choices of individual plan
participants with respect to their PW 401(k) Plan contributions. Individual plan
participants should consult the Plan Information Statement and Summary Plan
Description of the PW 401(k) 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 average net asset value per share at
which Class Y shares of Growth Fund and Growth and Income Fund are purchased by
the trustee of the PW 401(k) Plan for the accounts of individual participants
might be more or less than the net asset value per share prevailing at the time
that such participants made their investment choices or made their contributions
to the PW 401(k) Plan.
    
 
- --------------------------------------------------------------------------------
                               HOW TO BUY SHARES
- --------------------------------------------------------------------------------
 
   
Prices are calculated for each class of a Fund's shares once each Business Day,
at the close of regular trading on the New York Stock Exchange ("NYSE") (usually
4:00 p.m., Eastern time). Prices will be calculated earlier when the NYSE closes
early because trading has been halted for the day. A "Business Day" is any day,
Monday through Friday, on which the NYSE is open for business.
    
 
The Funds and Mitchell Hutchins reserve the right to reject any purchase order
and to suspend the offering of Fund shares for a period of time.
 
When placing an order to buy shares, investors should specify which class of
shares they want to buy. If investors fail to specify the class, they will
automatically receive Class A shares, which include an initial sales charge.
Investors in Class Y shares must provide satisfactory information to PaineWebber
or an individual Fund that they are eligible to purchase Class Y shares.
 
PAINEWEBBER CLIENTS
 
Investors who are PaineWebber clients may buy shares through PaineWebber
investment executives or its correspondent firms. Investors may buy shares in
person, by mail, by telephone or by wire (the minimum wire purchase is $1
million). PaineWebber investment executives and correspondent firms are
responsible for promptly sending investors' purchase orders to PaineWebber's New
York City headquarters.
 
Investors may pay for their purchases with checks drawn on U.S. banks or with
funds they have in their brokerage accounts at PaineWebber or its correspondent
firms.
 
                              --------------------
                               Prospectus Page 22

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
       
   
OTHER INVESTORS
    
 
Investors who are not PaineWebber clients may purchase Fund shares and set up an
account through the Transfer Agent (PFPC Inc.) by completing and signing an
account application which you may obtain by calling 1-800-647-1568. The
application and check must be mailed to PFPC Inc., Attn: PaineWebber Mutual
Funds, P.O. Box 8950, Wilmington, DE 19899.
 
New investors to PaineWebber may complete and sign an account application and
mail it along with a check. Investors may also open an account in person.
 
Investors who already have money invested in a PaineWebber mutual fund, and want
to invest in another PaineWebber mutual fund, can:
 
o mail an application with a check; or
 
o open an account by exchanging from another PaineWebber mutual fund.
 
Investors do not have to send an application when making additional investments
in the Fund.
 
MINIMUM INVESTMENTS
 
To open an account.................   $1,000
To add to an account...............   $  100
 
A Fund may waive or reduce these minimums for:
 
   
o employees of PaineWebber or its affiliates;
    
 
   
o participants in certain pension plans, retirement accounts, unaffiliated
  investment programs or the Fund's automatic investment plan; or
    
 
   
o transactions in Class A and Class Y shares made in certain investment
  programs.
    
 
HOW TO EXCHANGE SHARES
 
   
As shareholders, investors have the privilege of exchanging Class A, B and C
shares for shares of the same class of most other PaineWebber mutual funds. For
classes of shares where no initial sales charge is imposed, a contingent
deferred sales charge may apply if the investor sells the shares acquired
through the exchange. Class Y shares are not exchangeable.
    
 
Exchanges may be subject to minimum investment requirements of the fund into
which exchanges are made.
 
o Investors who purchased their shares through an investment executive at
  PaineWebber or one of its correspondent firms may exchange their shares by
  contacting their investment executive in person or by telephone, mail or wire.
 
o Investors who do not have an account with an investment executive at
  PaineWebber or one of its correspondent firms may exchange their shares by
  writing a "letter of instruction" to the Transfer Agent. The letter of
  instruction must include:
 
  o the investor's name and address;
 
  o the Fund's name;
 
  o the Fund account number;
 
  o the dollar amount or number of shares to be sold; and
 
   
  o a guarantee of each registered owner's signature. A signature guarantee may
    be obtained from a domestic bank or trust company, broker, dealer, clearing
    agency or savings association which is a participant in a medallion program
    recognized by the Securities Transfer Association. The three recognized
    medallion programs are Securities Transfer Agents Medallion Program (STAMP),
    Stock Exchanges Medallion Program (SEMP) and the NYSE Medallion Signature
    Program (MSP). Signature guarantees which are not part of these programs
    will not be accepted.
    
 
The letter must be mailed to PFPC Inc., Attn: PaineWebber Mutual Funds,
P.O. Box 8950, Wilmington, DE 19899.
 
   
No contingent deferred sales charge is imposed when Class A, B or C shares are
exchanged for the corresponding class of shares of other PaineWebber mutual
funds. A Fund will use the purchase date of the initial investment to determine
any contingent deferred sales charge due when the acquired shares are sold. Fund
shares may be exchanged only after the settlement date has passed and payment
for the shares has been made. The exchange privilege is available only in those
jurisdictions where the sale of the fund shares to be acquired is authorized.
This exchange privilege may be modified or terminated at any time and, when
required by SEC rules, upon a 60-day notice. See the back cover of this
Prospectus for a listing of other PaineWebber mutual funds.
    
 
                              --------------------
                               Prospectus Page 23

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                               HOW TO SELL SHARES
- --------------------------------------------------------------------------------
 
   
Investors can sell (redeem) shares at any time. Shares will be sold at the share
price for that class (less any applicable contingent deferred sales charge) as
next calculated after the order is received by PaineWebber's New York City
headquarters or the Transfer Agent. Share prices are normally calculated at the
close of regular trading on the NYSE (usually 4:00 p.m., Eastern time). Prices
will be calculated earlier when the NYSE closes early because trading has been
halted for the day.
    
 
Investors who own more than one class of shares should specify which class they
are selling. If they do not, the Fund will assume they are first selling their
Class A shares, then Class C, then Class B and last, Class Y.
 
If a shareholder wants to sell shares that were purchased recently, the Fund may
delay payment until it verifies that good payment was received. In the case of
purchases by check, this can take up to 15 days.
 
Investors who have an account with PaineWebber or one of PaineWebber's
correspondent firms can sell their shares by contacting their investment
executive. Investors who do not have an account and have bought their shares
through the Funds' Transfer Agent (PFPC Inc.) may sell shares by writing a
"letter of instruction," as detailed in "How to Exchange Shares."
 
Because the Funds incur certain fixed costs in maintaining shareholder accounts,
each Fund reserves the right to purchase back all of its shares in any
shareholder account with a net asset value of less than $500. If a Fund elects
to do so, it will notify the shareholder of the opportunity to increase the
amount invested to $500 or more within 60 days of the notice. The Fund will not
purchase back accounts that fall below $500 solely due to a reduction in net
asset value per share.
 
   
SALES BY PARTICIPANTS IN PW 401(K) PLAN
    
 
   
The trustee of the PW 401(k) Plan sells Class Y shares of Tactical Allocation
Fund to implement the investment choices of individual plan participants with
respect to their PW 401(k) Plan contributions, as described in the Plan
Documents referenced under "Flexible Pricing" above. The price at which Class Y
shares are sold by the trustee of the PW 401(k) Plan might be more or less than
the price per share at the time the participants made their investment choices.
    
 
REINSTATEMENT PRIVILEGE

Shareholders who sell their Class A shares may reinstate their Fund account
without a sales charge up to the dollar amount sold by purchasing the Fund's
Class A shares within 365 days after the sale. To take advantage of this
reinstatement privilege, shareholders must notify their investment executive at
PaineWebber or one of its correspondent firms at the time of purchase.
 
- --------------------------------------------------------------------------------
                                 OTHER SERVICES
- --------------------------------------------------------------------------------
 
Investors should consult their investment executives at PaineWebber or one of
its correspondent firms to learn more about the following services available
with respect to the Funds' Class A, Class B and C shares:
 
AUTOMATIC INVESTMENT PLAN
 
   
Investing on a regular basis helps investors meet their financial goals.
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, semiannual or annual basis from the investor's bank account to invest
directly in the Fund. In addition to providing a convenient and disciplined
manner of investing, participation in the Automatic Investment Plan enables the
investor to use the technique of "dollar cost averaging."
    
 
SYSTEMATIC WITHDRAWAL PLAN
 
The Systematic Withdrawal Plan allows investors to set up monthly, quarterly
(March, June, September and December), semiannual (June and December) or annual
(December) withdrawals from their Fund accounts. Minimum balances and
withdrawals vary according to the class of shares:
 
                              --------------------
                               Prospectus Page 24

<PAGE>
                         ------------------------------
 
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
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 $20,000; minimum monthly,
  quarterly, semiannual and annual withdrawals of $200, $400, $600 and $800,
  respectively.
    
 
   
Withdrawals under the Systematic Withdrawal Plan are not subject to a contingent
deferred sales charge. Investors may not withdraw more than 12% of the value of
the Fund account when the investor signed up for the Plan annually for Class B
shares; during the first year for Class A and C shares. Shareholders who elect
to receive dividends or other distributions in cash may not participate in the
Plan.
    
 
INDIVIDUAL RETIREMENT ACCOUNTS
 
Self-Directed IRAs are available through PaineWebber in which purchases of
PaineWebber 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 the Transfer Agent. 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.
 
- --------------------------------------------------------------------------------
                                   MANAGEMENT
- --------------------------------------------------------------------------------
 
   
Each Fund is governed by its board of trustees, which oversees the Fund's
operations. Each board has appointed Mitchell Hutchins as investment adviser and
administrator responsible for the Fund's operations (subject to the authority of
the board). The boards, as part of their overall management responsibility,
oversee various organizations responsible for the day-to-day management of each
Fund.
    
 
   
In accordance with procedures adopted by the boards, brokerage transactions for
the Funds may be conducted through PaineWebber or its affiliates and the Funds
may pay fees to PaineWebber for its services as lending agent in their portfolio
securities lending programs. Personnel of Mitchell Hutchins may engage in
securities transactions for their own accounts pursuant to a code of ethics that
establishes procedures for personal investing and restricts certain
transactions.
    
 
ABOUT THE INVESTMENT ADVISER
 
   
Mitchell Hutchins, located at 1285 Avenue of the Americas, New York, New York,
10019, is a wholly owned asset management subsidiary of PaineWebber, which is
wholly owned by Paine Webber Group Inc., a publicly owned financial services
holding company. On October 31, 1998, Mitchell Hutchins was adviser or
sub-adviser of 32 investment companies with 73 separate portfolios and aggregate
assets of approximately $41.2 billion.
    
 
   
As investment adviser and administrator for each Fund, Mitchell Hutchins makes
and implements all investment decisions and supervises all aspects of each
Fund's operations.
    
 
   
Mark A. Tincher is a managing director and chief investment officer of equities
of Mitchell Hutchins, responsible for overseeing the management of equity
investments. Upon his arrival at Mitchell Hutchins, Mr. Tincher formed the
Mitchell Hutchins Equity Research Team. Each analyst on the Team focuses on
different industries. As a result, the Team provides PaineWebber Stock Funds
with more specialized knowledge of the various industries in which the Funds
generally invest. The Team is also assisted by members of Mitchell Hutchins'
fixed income groups, who provide input on market outlook, interest rate
forecasts and other considerations pertaining to domestic equity and fixed
income investments.
    
 
GROWTH AND INCOME FUND
 
Mr. Tincher has been responsible for the day-to-day management of Growth and
Income Fund since April 1995. From March 1988 to March 1995, Mr. Tincher worked
for Chase Manhattan Private Bank where he was a vice president. Mr. Tincher
directed the U.S. funds management and equity research area at Chase and oversaw
the management of all Chase U.S. equity funds (the Vista Funds and Trust
Investment Funds).
 
Mr. Tincher was the sole portfolio manager of Vista Growth and Income Fund
("Vista Fund"), with full discretionary authority over the selection of
investments, from July 31, 1991 through March 16, 1995.
 
                              --------------------
                               Prospectus Page 25

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund

Vista Fund's investment objectives of long-term capital appreciation and
dividend income are substantially similar to Growth and Income Fund's investment
objective of current income and capital growth. Mr. Tincher used and relied upon
the same valuation model and analytical methods when managing the Vista Fund as
he now uses for Growth and Income Fund.
 
The cumulative total return for Vista Fund for the period it was managed by
Mr. Tincher was 46.18%; 39.24% after deducting that Fund's maximum sales charge
of 4.75%. As of March 31, 1995, the Vista Fund had $1.6 billion in net assets.
The chart below shows calendar year total returns for Vista Fund; the 1991
return represents the period from July 31, 1991 when Mr. Tincher took over
day-to-day management of the Vista Fund through December 31, 1991. Sales charges
have not been deducted from total returns. Returns would be lower if sales
charges were deducted.
 
      Mr. Tincher's Term as Manager
     of Vista Growth and Income Fund

7/31/91 - 12/31/91.............      9.69%

1992...........................     15.11%

1993...........................     12.99%

1994...........................     (3.41)%

Average annual returns both before and after deducting the maximum sales charges
are shown in the table below. Average annual returns are for the one- and
three-year periods ended December 31, 1994 and the entire period during which
Mr. Tincher managed the Vista Fund (July 31, 1991 through March 16, 1995) and
are compared with the performance of the Standard & Poor's 500 Composite Stock
Price Index for each such period.

<TABLE>
<CAPTION>
                                          VISTA      S&P 500
                                         FUND(1)     INDEX(2)
                                         -------     --------
<S>                                      <C>         <C>
Mr. Tincher's Term as Manager
  7/31/91 through 3/16/95
Before deducting maximum sales
  charges...........................     11.04%      10.17%
After deducting maximum sales
  charges...........................      9.56%      10.17%
 
<CAPTION>
                                          VISTA      S&P 500
                                         FUND(1)     INDEX(2)
                                         -------     --------
<S>                                      <C>         <C>
Three Years Ended 12/31/94
Before deducting maximum sales
  charges...........................      7.90%       6.26%
After deducting maximum sales
  charges...........................      6.16%       6.26%
One Year Ended 12/31/94
Before deducting maximum sales
  charges...........................     -3.41%       1.31%
After deducting maximum sales
  charges...........................     -8.00%       1.31%
</TABLE>
 
- ------------------
1. Average annual returns are for Class A shares and reflect, where applicable
   the deduction of the maximum sales charge of 4.75%, changes in share prices,
   reinvestment of dividends and distributions and are net of fund expenses. For
   the fiscal years ended October 31, 1991 and October 31, 1992, expenses in the
   amount of 0.51% and 0.03%, respectively, were waived or reimbursed.
 
2. The Standard & Poor's 500 Composite Stock Price Index ("Index") is an
   unmanaged index of common stocks that is considered to be generally
   representative of the United States stock market. The Index is adjusted to
   reflect reinvestment of dividends. No sales charges are applicable.
- ------------------
 
Historical performance is not indicative of future performance. Vista Fund is a
separate fund and its historical performance is not indicative of the past or
future performance of Growth and Income Fund. S&P 500 Index and Vista Fund
performance information calculated by Lipper Analytical Services Inc; used with
permission.
 
   
MID CAP FUND
    
 
   
Mr. Tincher, Christopher G. Altschul and Antony J. Scott have been primarily
responsible for the day-to-day portfolio management of the Fund since May 1,
1998. Mr. Altschul is a first vice president of Mitchell Hutchins and is
currently responsible for the quantitative equity valuation model and has
various analytical responsibilities. Prior to joining Mitchell Hutchins in April
1995, Mr. Altschul worked as an equity analyst at Chase Manhattan Bank beginning
in 1989. Mr. Scott is a first vice president of Mitchell Hutchins and is
currently an equity analyst responsible for technology, media, entertainment and
medical products industries. Prior to joining Mitchell Hutchins in May 1996, Mr.
Scott worked at Morgan Stanley as a research analyst in the technology group
beginning in 1992.
    
 
                              --------------------
                               Prospectus Page 26

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
       
   
SMALL CAP FUND
    
 
   
Donald R. Jones has been primarily responsible for day-to-day portfolio
management of Small Cap Fund since April 1996. Mr. Jones is a senior vice
president of Mitchell Hutchins. Prior to joining Mitchell Hutchins in February
1996, Mr. Jones was a vice president in the Asset Management Group of First
Fidelity Bancorporation, which he joined in 1983.
    
 
   
GROWTH FUND
    
 
   
Ellen R. Harris has been responsible for the day-to-day portfolio management of
Growth Fund since its inception and was joined by Karen L. Finkel in November
1998. Ms. Harris is a managing director of Mitchell Hutchins. Prior to joining
Mitchell Hutchins in 1983 as a portfolio manager, Ms. Harris served as a vice
president and portfolio manager at American General Capital Management (now
American Capital Management). Ms. Finkel is a senior vice president of Mitchell
Hutchins and has been employed by Mitchell Hutchins as a portfolio manager for
over ten years.
    
 
MANAGEMENT FEES & OTHER EXPENSES
 
   
The Funds pay Mitchell Hutchins a monthly fee for its services. For the most
recently ended fiscal year, the Funds paid advisory fees at the following annual
rates (stated as a percentage of average daily net assets).
    
 
   
<TABLE>
<S>                                                 <C>
Growth and Income Fund...........................   0.70%
Mid Cap Fund.....................................   1.00
Small Cap Fund...................................   1.00
Growth Fund......................................   0.75
</TABLE>
    
 
       
   
DISTRIBUTION ARRANGEMENTS
    
 
Mitchell Hutchins is the distributor of each Fund's shares and has appointed
PaineWebber as the exclusive dealer for the sale of those shares. There is no
distribution plan with respect to the Funds' Class Y shares. Under distribution
plans for Class A, Class B and Class C shares ("Class A Plan," "Class B Plan"
and "Class C Plan," collectively, "Plans"), the Funds pay Mitchell Hutchins:
 
o Monthly service fees at the annual rate of up to 0.25% of the average daily
  net assets of each class of shares.
 
o Monthly distribution fees at the annual rate of 0.75% of the average daily net
  assets of Class B and Class C shares.
 
Under the Plans, Mitchell Hutchins primarily uses the service fees to pay
PaineWebber for shareholder servicing, currently at the annual rate of up to
0.25% of the aggregate investment amounts maintained in each Fund's Class A,
Class B and Class C shares by PaineWebber clients. PaineWebber then compensates
its investment executives 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 each 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.
 
PaineWebber compensates investment executives 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 each class of shares
("Distribution Contracts") specify that each Fund must pay service and
distribution fees to Mitchell Hutchins for its 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 each Plan and Mitchell Hutchins' corresponding expenses for each class
separately from the Plans and expenses of the other classes.
 
                              --------------------
                               Prospectus Page 27

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                            DETERMINING THE SHARES'
                                NET ASSET VALUE
- --------------------------------------------------------------------------------
 
   
The net asset value of a Fund's shares fluctuates and is determined separately
for each class, normally as of the close of regular trading on the NYSE (usually
4:00 p.m., Eastern time) each Business Day. Each Fund's net asset value per
share is determined by dividing the value of the securities it holds, plus any
cash or other assets, minus all liabilities, by the total number of Fund shares
outstanding.
    
 
   
If trading on the NYSE is halted for the day before 4:00 p.m., Eastern time, and
trading on the NYSE will not resume again that day, each Fund's net asset value
per share will be calculated at the time trading was halted.
    
 
Each Fund values its assets based on their current market value when market
quotations are readily available. If market quotations are not readily
available, assets are valued at fair value as determined in good faith by or
under the direction of its board. The amortized cost method of valuation
generally is used to value debt obligations with 60 days or less remaining to
maturity, unless a Fund's board determines that this does not represent fair
value. It should be recognized that judgment plays a greater role in valuing
lower-rated corporate bonds because there is less reliable, objective data
available.
 
- --------------------------------------------------------------------------------
                               DIVIDENDS & TAXES
- --------------------------------------------------------------------------------
 
DIVIDENDS
 
   
Mid Cap Fund, Small Cap Fund and Growth Fund each pays an annual dividend, and
Growth and Income Fund pays a semiannual dividend, from its net investment
income and net short-term capital gain, if any. Each Fund also annually
distributes substantially all of its net capital gain (the excess of net
long-term capital gain over net short-term capital loss), if any. Each Fund may
make additional distributions, if necessary, to avoid a 4% excise tax on certain
undistributed income and capital gain. If determined by its board to be in the
best interests of its shareholders, Growth and Income Fund may also make
additional distributions of net investment income and net short-term capital
gain, if any.
    
 
Dividends and other distributions paid on each class of shares of a Fund are
calculated at the same time and in the same manner. Dividends on Class A, B and
C shares of a Fund are expected to be lower than those on its Class Y shares
because the other shares have higher expenses resulting from their service fees
and, in the case of Class B and Class C shares, their distribution fees.
Dividends on Class B and Class C shares of a Fund are expected to be lower than
those on its Class A shares because Class B and Class C shares have higher
expenses resulting from their distribution fees. Dividends on each class might
be affected differently by the allocation of other class-specific expenses. See
"General Information."

Each Fund's dividends and other distributions are paid in additional Fund shares
of the same class at net asset value, unless the shareholder has requested cash
payments. Shareholders who wish to receive dividends and other distributions in
cash, either mailed to them by check or credited to their PaineWebber accounts,
should contact their investment executives at PaineWebber or one of its
correspondent firms or complete the appropriate section of the account
application.

TAXES

   
Each Fund intends to continue to qualify for treatment as a regulated investment
company under the Code so that it will not have to pay federal income tax on the
part of its investment company taxable income (generally consisting of net
investment income and net short-term capital gain) and net capital gain that it
distributes to its shareholders.
    

                              --------------------
                               Prospectus Page 28

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
   
Dividends from each Fund's investment company taxable income (whether paid in
cash or additional shares) are generally taxable to its shareholders as ordinary
income. Distributions of each Fund's net capital gain (whether paid in cash or
additional shares) are taxable to its shareholders as long-term capital gain,
regardless of how long they have held their Fund shares. Under the Taxpayer
Relief Act of 1997, as modified by recent legislation, the maximum tax rate
applicable to a non-corporate taxpayer's net capital gain recognized on capital
assets held for more than one year is 20% (10% for taxpayers in the 15% marginal
tax bracket). In the case of a regulated investment company such as a Fund, the
relevant holding period is detemined by how long the Fund has held the portfolio
securities on which the gain was realized, not how long the shareholders have
held their Fund shares.
    
 
Shareholders who are not subject to tax on their income generally will not be
required to pay tax on distributions from the Funds.
 
YEAR-END TAX REPORTING
 
   
Following the end of each calendar year, each Fund notifies its shareholders of
the amounts of dividends and capital gain distributions paid (or deemed paid) by
the Fund that year and any portion of those dividends that qualifies for special
tax treatment.
    
 
BACKUP WITHHOLDING
 
   
Each Fund must 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 with a correct taxpayer identification
number. Withholding at that rate also is required from dividends and capital
gain distributions payable to such shareholders who otherwise are subject to
backup withholding.
    
 
TAXES ON THE SALE OR EXCHANGE OF FUND SHARES
 
A shareholder's sale (redemption) of Fund shares may result in a taxable gain or
loss. This depends upon whether the shareholder receives more or less than the
adjusted basis for the shares (which normally includes any initial sales charge
paid on Class A shares). An exchange of any 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 that 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 TAX RULES FOR CLASS A SHAREHOLDERS
 
Special tax rules apply when a shareholder sells (redeems) or exchanges Class A
shares within 90 days of purchase and subsequently acquires Class A shares of
the same 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.
 
   
A shareholder will recognize no gain or loss as a result of conversion of
Class B shares to Class A shares.
    
 
                                   *  *  *  *
 
Because the foregoing only summarizes some of the important considerations
affecting the Funds and their shareholders, a further discussion is contained in
the Statement of Additional Information. Prospective shareholders are urged to
consult their tax advisers.
 
- --------------------------------------------------------------------------------
                              GENERAL INFORMATION
- --------------------------------------------------------------------------------
 
ORGANIZATION
 
GROWTH AND INCOME FUND
 
Growth and Income Fund is a diversified series of PaineWebber America Fund, an
open-end management investment company that was formed on October 31, 1986 as a
business trust under the laws of the Commonwealth of Massachusetts. The board
has authority to issue an unlimited number of shares of beneficial interest of
separate series, par value $0.001 per share.
 
   
MID CAP FUND
    
 
   
Mid Cap Fund is a diversified series of PaineWebber Managed Assets Trust, an
open-end management investment company that was formed on August 9,
    
 
                              --------------------
                               Prospectus Page 29

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
   
1991, as a business trust under the laws of the Commonwealth of Massachusetts.
The trustees have authority to issue an unlimited number of shares of beneficial
interest of separate series, par value $0.001 per share.
    
 
       
   
SMALL CAP FUND
    
 
Small Cap Fund is a diversified series of PaineWebber Securities Trust
("Securities Trust"), an open-end management investment company that was formed
on December 3, 1992 as a business trust under the laws of the Commonwealth of
Massachusetts. The board has authority to issue an unlimited number of shares of
beneficial interest of separate series, par value $0.001 per share. In addition
to Small Cap Fund, shares of one other series have been authorized.
 
   
GROWTH FUND
    
 
   
Growth Fund is a diversified series of PaineWebber Olympus Fund, an open-end
management investment company that was formed on October 31, 1986 as a business
trust under the laws of the Commonwealth of Massachusetts. The board has
authority to issue an unlimited number of shares of beneficial interest of
separate series, par value $0.001 per share.
    
 
SHARES
 
The shares of each Fund are divided into four classes, designated Class A,
Class B, Class C and Class Y shares. Each class of shares of a Fund represents
an identical interest in that Fund's 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 the Funds 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 on a Fund's Class A, B, C and Y
shares will differ.
 
Although each Fund is offering only its own shares, it is possible that a Fund
could become liable for a misstatement in the Prospectus about another Fund. The
board of each Fund considered this factor in approving the use of a combined
Prospectus.
 
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 any Fund (or
Securities Trust, which has more than one series) may elect all of the trustees
of that Fund or of Securities 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 Plan as it
relates to the class. The shares of each series of Securities Trust will be
voted separately except where an aggregate vote of all its series is required by
law.
    
 
SHAREHOLDER MEETINGS
 
The Funds do not hold annual meetings.
 
Shareholders of record of no less than two-thirds of the outstanding shares of a
Fund or Securities 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 a trustee at the written
request of holders of 10% of a Fund's or Securities Trust's outstanding shares.
 
REPORTS TO SHAREHOLDERS
 
Each Fund sends its shareholders audited annual and unaudited semiannual
reports, each of which includes a list of the investment securities held by that
Fund as of the end of the period covered by the report. The Statement of
Additional Information, which is incorporated herein by reference, is available
to shareholders upon request.
 
CUSTODIAN & RECORDKEEPING AGENT;
TRANSFER & DIVIDEND DISBURSING AGENT
 
   
State Street Bank and Trust Company, located at One Heritage Drive, North
Quincy, Massachusetts 02171, serves as each Fund's custodian and recordkeeping
agent. 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.
    
 
                              --------------------
                               Prospectus Page 30

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund





 
                      [This page intentionally left blank]
 




                              --------------------
                               Prospectus Page 31

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
GROWTH AND INCOME FUND
 
   
The following tables provide investors with data and ratios for one Class A,
Class B, Class C and Class Y share for each of the periods shown. This
information is supplemented by the financial statements, accompanying notes and
the report of Ernst & Young LLP, independent auditors, which appear in the
Fund's Annual Report to Shareholders for the fiscal year ended August 31, 1998,
and are incorporated by reference into the Statement of Additional Information.
The financial statements and notes, as well as the information for each of the
five years in the period ended August 31, 1998 appearing in the following
tables, have been audited by Ernst & Young LLP, independent auditors. Further
information about the Fund's performance is also included in the Annual Report
to Shareholders, which may be obtained without charge by calling 1-800-647-1568.
Information shown below for periods prior to the year ended August 31, 1994 has
also been audited by Ernst & Young LLP, independent auditors, whose reports
thereon were unqualified.
    
 
   
<TABLE>
<CAPTION>
                                                                GROWTH AND INCOME FUND
                    --------------------------------------------------------------------------------------------------------------
                                                                       CLASS A
                    --------------------------------------------------------------------------------------------------------------
                                                            FOR THE YEARS ENDED AUGUST 31,
                    --------------------------------------------------------------------------------------------------------------
                      1998       1997       1996          1995        1994       1993       1992       1991       1990      1989
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
<S>                 <C>        <C>        <C>           <C>         <C>        <C>        <C>        <C>         <C>       <C>
Net asset value,   
 beginning of      
 period...........  $  30.60   $  24.35   $  22.52      $  20.43    $  20.86   $  20.48   $  19.26   $  15.87    $ 16.50   $ 13.32
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Net investment     
 income...........      0.19       0.23       0.22          0.24        0.28       0.28       0.24       0.19       0.51      0.49
Net realized and   
 unrealized gains  
 (losses) from     
 investments and   
 options..........     (0.99)      9.29       3.46          3.18       (0.41)      0.37       1.25       3.50      (0.61)     3.17
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Total increase     
 (decrease) from   
 investment        
 operations.......      0.80       9.52       3.68          3.42       (0.13)      0.65       1.49       3.69      (0.10)     3.66
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Dividends from     
 investment        
 income...........     (0.21)     (0.25)     (0.34)        (0.12)      (0.27)     (0.27)     (0.27)     (0.30)     (0.53)    (0.48)
Distributions from 
 net realized      
 gains from        
 investment        
 transactions.....     (2.67)     (3.02)     (1.51)        (1.21)      (0.03)        --         --         --         --        --
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Total dividends    
 and distributions 
 to shareholders..     (2.88)     (3.27)     (1.85)        (1.33)      (0.30)     (0.27)     (0.27)     (0.30)     (0.53)    (0.48)
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Net asset value,   
 end of period....  $  26.92   $  30.60   $  24.35      $  22.52    $  20.43   $  20.86   $  20.48   $  19.26    $ 15.87   $ 16.50
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Total investment   
 return (1).......     (3.51)%    42.42%     17.40%        18.30%      (0.58)%     3.15%      7.78%     23.62%     (0.72)%   28.03%
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
                    --------   --------   --------      --------    --------   --------   --------   --------    -------   -------
Ratios/Supplemental
 data:             
Net assets, end of 
 period (000's)...  $670,606   $441,699   $276,016      $187,057    $222,432   $359,073   $358,643   $232,555    $58,649   $61,617
Expenses to        
 average net       
 assets**.........      1.07%      1.15%      1.20%(2)      1.19%       1.20%      1.13%      1.22%      1.42%      1.41%     1.41%
Net investment     
 income to average 
 net assets**.....      0.71%      0.88%      0.98%(2)      1.07%       1.29%      1.33%      1.26%      1.79%      3.11%     3.26%
Portfolio turnover 
 rate.............        62%        70%       112%          111%         94%        37%        16%        52%        32%       79%
</TABLE>
    
 
- ------------------
     *  Annualized.
   
    **  During certain periods presented, PaineWebber/Mitchell Hutchins waived
        fees or reimbursed the Fund for portions of its operating expenses. If
        such waivers or reimbursements had not been made for the Class A
        shares, the annualized ratio of expenses to average net assets and the
        annualized ratio of net investment income to average net assets would
        have been 1.65% and 3.02%, respectively, for the year ended
        August 31, 1989.
    
     +  Commencement of offering of shares.
   (1)  Total investment return is calculated assuming a $1,000 investment on
        the first day of each period reported, reinvestment of all dividends
        and other distributions at net asset value on the payable dates and a
        sale at net asset value on the last day of each period reported. The
        figures do not include sales charges; results for Class A, Class B and
        Class C shares would be lower if sales charges were included. Total
        investment return information for periods of less than one year has
        not been annualized.
   
   (2)  These ratios include non-recurring acquisition expenses of 0.04%.
    
 
                              --------------------
                               Prospectus Page 32

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------

   
<TABLE>
<CAPTION>

                                                 GROWTH AND INCOME FUND
                      ------------------------------------------------------------------------------------------
                                                        CLASS B
                      ------------------------------------------------------------------------------------------
                                                                                                        FOR THE
                                                                                                        PERIOD
                                                                                                       JULY 1,
                                       FOR THE YEARS ENDED AUGUST 31,                                 1991+ TO
                      -----------------------------------------------------------------------------   AUGUST 31,
                        1998       1997       1996          1995       1994       1993       1992       1991
                      --------   --------   --------      --------   --------   --------   --------   ----------
<S>                   <C>        <C>        <C>           <C>        <C>        <C>        <C>        <C>  
Net asset value,                           
 beginning of                              
 period...........    $  30.46   $  24.26   $  22.37      $  20.37   $  20.78   $  20.41   $  19.23    $  18.04
                      --------   --------   --------      --------   --------   --------   --------    --------
Net investment                             
 income...........       (0.02)      0.04       0.04          0.06       0.10       0.12       0.13        0.02
Net realized and                           
 unrealized gains                          
 (losses) from                             
 investments and                           
 options..........       (1.02)      9.23       3.45          3.18      (0.37)      0.36       1.20        1.17
                      --------   --------   --------      --------   --------   --------   --------    --------
Total increase                             
 (decrease) from                           
 investment                                
 operations.......       (1.04)      9.27       3.49          3.24      (0.27)      0.48       1.33        1.19
                      --------   --------   --------      --------   --------   --------   --------    --------
Dividends from                             
 investment                                
 income...........          --      (0.05)     (0.09)        (0.03)     (0.11)     (0.11)     (0.15)         --
Distributions from                         
 net realized                              
 gains from                                
 investment                                
 transactions.....       (2.65)     (3.02)     (1.51)        (1.21)     (0.03)        --         --          --
                      --------   --------   --------      --------   --------   --------   --------    --------
Total dividends                            
 and distributions                         
 to shareholders..       (2.65)     (3.07)     (1.60)        (1.24)     (0.14)     (0.11)     (0.15)         --
                      --------   --------   --------      --------   --------   --------   --------    --------
Net asset value,                           
 end of period....    $  26.77   $  30.46   $  24.26      $  22.37   $  20.37   $  20.78   $  20.41    $  19.23
                      --------   --------   --------      --------   --------   --------   --------    --------
                      --------   --------   --------      --------   --------   --------   --------    --------
Total investment                           
 return (1).......       (4.28)%    41.33%     16.49%        17.38%     (1.31)%     2.34%      6.99%       6.60%
                      --------   --------   --------      --------   --------   --------   --------    --------
                      --------   --------   --------      --------   --------   --------   --------    --------
Ratios/Supplemental                        
 data:                                     
Net assets, end of                         
 period (000's)...    $353,150   $376,840   $277,753      $247,543   $289,290   $461,389   $386,275    $ 57,539
Expenses to                                
 average net                               
 assets**.........        1.87%      1.93%      1.99%(2)      1.97%      1.97%      1.90%      1.97%       2.10%*
Net investment                             
 income to average                         
 net assets**.....       (0.08)%     0.11%      0.17%(2)      0.29%      0.51%      0.57%      4.90%       1.18%*
Portfolio turnover                         
 rate.............          62%       70%       112%          111%        94%        37%        16%         52%
 
<CAPTION>
                                                    GROWTH AND INCOME FUND
                       -------------------------------------------------------------------------------------
                                                           CLASS C
                      --------------------------------------------------------------------------------------
                                                                                                    FOR THE
                                                                                                    PERIOD
                                                                                                    JULY 2,
                                      FOR THE YEARS ENDED AUGUST 31,                               1992+ TO
                      ---------------------------------------------------------------------------  AUGUST 31,
                         1998         1997          1996         1995         1994       1993        1992
                      ----------    --------       -------      -------      -------   ----------  ----------
<S>                   <C>           <C>            <C>          <C>          <C>       <C>         <C>
Net asset value,                                                                                  
 beginning of                                                                                     
 period...........    $    30.53    $  24.33       $ 22.43      $ 20.42      $ 20.83     $ 20.47    $  20.95
                      ----------    --------       -------      -------      -------     -------    --------
Net investment                                                                                    
 income...........          0.01        0.05          0.05         0.06         0.11        0.11        0.02
Net realized and                                                                                  
 unrealized gains                                                                                 
 (losses) from                                                                                    
 investments and                                                                                  
 options..........         (1.03)       9.24          3.46         3.19        (0.38)       0.37       (0.44)
                      ----------    --------       -------      -------      -------     -------    --------
Total increase                                                                                    
 (decrease) from                                                                                  
 investment                                                                                       
 operations.......         (1.02)       9.29          3.51         3.25        (0.27)       0.48       (0.42)
                      ----------    --------       -------      -------      -------     -------    --------
Dividends from                                                                                    
 investment                                                                                       
 income...........         (0.02)      (0.07)        (0.10)       (0.03)       (0.11)      (0.12)      (0.06)
Distributions from                                                                                
 net realized                                                                                     
 gains from                                                                                       
 investment                                                                                       
 transactions.....         (2.67)      (3.02)        (1.51)       (1.21)       (0.03)         --          --
                      ----------    --------       -------      -------      -------     -------    --------
Total dividends                                                                                   
 and distributions                                                                                
 to shareholders..         (2.69)      (3.09)        (1.61)       (1.24)       (0.14)      (0.12)      (0.06)
                      ----------    --------       -------      -------      -------     -------    --------
Net asset value,                                                                                  
 end of period....    $    26.82    $  30.53       $ 24.33      $ 22.43      $ 20.42     $ 20.83    $  20.47
                      ----------    --------       -------      -------      -------     -------    --------
                      ----------    --------       -------      -------      -------     -------    --------
Total investment                                                                                  
 return (1).......         (4.23)%     41.30%        16.52%       17.37%       (1.29)%      2.35%       2.85%
                      ----------    --------       -------      -------      -------     -------    --------
                      ----------    --------       -------      -------      -------     -------    --------
Ratios/Supplemental                                                                               
 data:                                                                                            
Net assets, end of                                                                                
 period (000's)...    $  149,458    $ 84,922       $43,148      $30,468      $37,287     $61,869    $ 13,019
Expenses to                                                                                       
 average net                                                                                      
 assets**.........          1.85%       1.92%         1.99%(2)     1.98%        1.94%       1.87%       1.73%*
Net investment                                                                                    
 income to average                                                                                
 net assets**.....         (0.07)%      0.10%         0.18%(2)     0.28%        0.54%       0.61%       0.94%*
Portfolio turnover                                                                                
 rate.............            62%         70%          112%         111%          94%         37%         16%
</TABLE>
    

                              --------------------
                               Prospectus Page 33

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                           GROWTH AND INCOME FUND
                            ------------------------------------------------------------------------------------
                                                                  CLASS Y
                            ------------------------------------------------------------------------------------
                                                                                                     FOR THE
                                                                                                      PERIOD
                                                                                                    FEBRUARY 12,
                                              FOR THE YEARS ENDED AUGUST 31,                         1992+ TO
                            --------------------------------------------------------------------    AUGUST 31,
                             1998       1997         1996           1995       1994       1993         1992
                            -------    -------      -------        -------    -------    -------    ------------
<S>                         <C>        <C>          <C>            <C>        <C>        <C>        <C>
Net asset value,
 beginning of period.....   $ 30.59    $ 23.35      $ 22.54        $ 20.42    $ 20.86    $ 20.48      $  20.95
                            -------    -------      -------        -------    -------    -------      --------
Net investment income....      0.30       0.32         0.30           0.30       0.33       0.33          0.16
Net realized and
 unrealized gains
 (losses) from
 investments
 and options.............     (1.02)      9.26         3.45           3.18      (0.40)      0.37         (0.49)
                            -------    -------      -------        -------    -------    -------      --------
Total increase (decrease)
 from investment
 operations..............     (0.72)      9.58         3.75           3.48      (0.07)      0.70         (0.33)
                            -------    -------      -------        -------    -------    -------      --------
Dividends from investment
 income..................     (0.28)     (0.32)       (0.43)         (0.15)     (0.34)     (0.32)        (0.14)
Distributions from net
 realized gains from
 investment
 transactions............     (2.67)     (3.02)       (1.51)         (1.21)     (0.03)        --            --
                            -------    -------      -------        -------    -------    -------      --------
Total dividends and
 distributions to
 shareholders............     (2.95)     (3.34)       (1.94)         (1.36)     (0.37)     (0.32)        (0.14)
                            -------    -------      -------        -------    -------    -------      --------
Net asset value, end of
 period..................   $ 26.92    $ 30.59      $ 24.35        $ 22.54    $ 20.42    $ 20.86      $  20.48
                            -------    -------      -------        -------    -------    -------      --------
                            -------    -------      -------        -------    -------    -------      --------
Total investment
 return(1)...............     (3.24)%    42.74%       17.77%         18.66%     (0.31)%     3.44%        (1.15)%
                            -------    -------      -------        -------    -------    -------      --------
                            -------    -------      -------        -------    -------    -------      --------
Ratios/supplemental data:
Net assets, end of period
 (000's).................   $65,518    $46,745      $22,942        $14,680    $14,690    $17,005      $ 10,560
Expenses to average net
 assets..................      0.80%      0.88%        0.92%(2)       0.89%      0.90%      0.86%         0.93%*
Net investment income to
 average net assets......      0.99%      1.14%        1.26%(2)       1.39%      1.60%      1.62%         1.56%*
Portfolio turnover.......        62%        70%         112%           111%        94%        37%           16%
</TABLE>
    
 
- ------------------
     *  Annualized
     +  Commencement of offering of shares.
   (1)  Total investment return is calculated assuming a $1,000 investment on
        the first day of each period reported, reinvestment of all dividends and
        other distributions at net asset value on the payable dates and a sale
        at net asset value on the last day of each period reported. Total
        investment return information for periods of less than one year has not
        been annualized.
   
   (2)  These ratios include non-recurring acquisition expenses of 0.04%.
    
 
                              --------------------
                               Prospectus Page 34
<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                      [This page intentionally left blank]
 



                              --------------------
                               Prospectus Page 35
<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
   
MID CAP FUND
    
 
   
The following table provides investors with data and ratios for one Class A,
Class B, Class C and Class Y share for each of the periods shown. This
information is supplemented by the financial statements, accompanying notes and
the report of Ernst & Young LLP, independent auditors, which appear in the
Fund's Annual Report to Shareholders for the fiscal year ended August 31, 1998,
and are incorporated by reference into the Statement of Additional Information.
The financial statements and notes, as well as the financial information in the
table below relating to the five month period ended August 31 and each of the
five years in the period ended March 31, 1998, have been audited by Ernst &
Young LLP. Information shown below for period prior to the year ended March 31,
1994, has also been audited by Ernst & Young LLP, whose report thereon was
unqualified. Further information about the Fund's performance is also included
in the Annual Report to Shareholders, which may be obtained without charge by
calling 1-800-647-1568.
    
 
   
<TABLE>
<CAPTION>
                                                                      MID CAP FUND
                              ---------------------------------------------------------------------------------------------
                                                                         CLASS A
                              ---------------------------------------------------------------------------------------------
                                                                                                                  FOR THE
                               FOR THE                                                                             PERIOD
                              FIVE MONTHS                                                                         APRIL 7,
                                ENDED                          FOR THE YEARS ENDED MARCH 31,                      1992+ TO
                              AUGUST 31,        ------------------------------------------------------------      MARCH 31,
                                1998**            1998         1997         1996         1995         1994          1993
                              ------------      --------      -------      -------      -------      -------      ---------
<S>                           <C>               <C>           <C>          <C>          <C>          <C>          <C>
Net asset value,             
 beginning of period.....       $  15.00        $  13.44      $ 15.61      $ 12.81      $ 11.65      $ 10.53       $  9.55
                                --------        --------      -------      -------      -------      -------       -------
Net investment loss......          (0.03)          (0.13)       (0.17)       (0.16)       (0.09)       (0.09)        (0.06)
Net realized and             
 unrealized gains            
 (losses) from investment    
 transactions............          (3.15)           5.15         0.32         3.71         1.29         1.21          1.04
                                --------        --------      -------      -------      -------      -------       -------
Net increase (decrease)      
 from investment             
 operations..............          (3.18)           5.02         0.15         3.55         1.20         1.12          0.98
                                --------        --------      -------      -------      -------      -------       -------
Distributions from net       
 realized gains from         
 investments.............          (3.85)          (3.46)       (2.32)       (0.75)       (0.04)          --            --
                                --------        --------      -------      -------      -------      -------       -------
Net asset value, end of      
 period..................       $   7.97        $  15.00      $ 13.44      $ 15.61      $ 12.81      $ 11.65       $ 10.53
                                --------        --------      -------      -------      -------      -------       -------
                                --------        --------      -------      -------      -------      -------       -------
Total investment return      
 (1).....................         (27.31)%         41.50%       (0.21)%      28.16%       10.36%       10.64%        10.26%
                                --------        --------      -------      -------      -------      -------       -------
                                --------        --------      -------      -------      -------      -------       -------
Ratios/Supplemental Data:    
Net assets, end of period    
 (000's).................       $ 90,650        $101,698      $76,909      $76,558      $62,673      $58,523       $48,582
Expenses to average net      
 assets..................           1.48%*          1.51%        1.60%        1.58%        1.58%        1.54%         1.72%*
Net investment loss to       
 average net assets......          (0.61)%*        (1.16)%      (1.20)%      (1.11)%      (0.79)%      (0.84)%       (0.78)%*
Portfolio turnover.......             80%             64%          56%          57%          42%          60%           51%
</TABLE>
    
 
- ------------------
     *  Annualized
   
    **  Effective May 1, 1998, Mitchell Hutchins took over day-to-day management
        of the Fund's assets.
    
     +  Commencement of operations.
     #  Commencement of offering of shares.
   
   (1)  Total investment return is calculated assuming a $1,000 investment on
        the first day of each period reported, reinvestment of all distributions
        at net asset value on the payable dates and a sale at net asset value on
        the last day of each period reported. The figures do not include sales
        charges; results for Class A, B and C shares would be lower if sales
        charges were included. Total investment returns for periods of less than
        one year have not been annualized.
    
                              --------------------
                               Prospectus Page 36

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------

   
<TABLE>
<CAPTION>
                                                                    MID CAP FUND
                         -------------------------------------------------------------------------------------------
                                                                      CLASS B
                         -------------------------------------------------------------------------------------------
                                                                                                            FOR THE
                             FOR THE                                                                         PERIOD
                           FIVE MONTHS                                                                      APRIL 7,
                              ENDED                      FOR THE YEARS ENDED MARCH 31,                      1992+ TO
                            AUGUST 31,       ------------------------------------------------------------   MARCH 31,
                              1998**           1998         1997         1996         1995         1994       1993
                           ------------      --------     --------     --------     --------     --------   ---------
<S>                         <C>              <C>          <C>          <C>          <C>          <C>       <C>
Net asset value,             
 beginning of period.....     15.07       $  13.59     $  15.88     $  13.11     $  12.02     $  10.94     $  10.00
                             ------       --------     --------     --------     --------     --------     ---------
Net investment loss......     (0.07)         (0.31)       (0.31)       (0.29)       (0.20)       (0.17)       (0.11)
Net realized and             
 unrealized gains            
 (losses) from investment    
 transactions............     (3.16)          5.25         0.34         3.81         1.33         1.25         1.05
                             ------       --------     --------     --------     --------     --------     ---------
Net increase (decrease)      
 from investment             
 operations..............     (3.23)          4.94         0.03         3.52         1.13         1.08         0.94
                             ------       --------     --------     --------     --------     --------     ---------
Distributions from net       
 realized gains from         
 investments.............     (3.85)         (3.46)       (2.32)       (0.75)       (0.04)          --           --
                             ------       --------     --------     --------     --------     --------     ---------
Net asset value, end of      
 period..................      7.99       $  15.07     $  13.59     $  15.88     $  13.11     $  12.02     $  10.94
                             ------       --------     --------     --------     --------     --------     ---------
                             ------       --------     --------     --------     --------     --------     ---------
Total investment return      
 (1).....................    (27.54)%        40.39%       (0.99)%      27.28%        9.46%        9.87%        9.40%
                             ------       --------     --------     --------     --------     --------     ---------
                             ------       --------     --------     --------     --------     --------     ---------
Ratios/Supplemental Data:    
Net assets, end of period    
 (000's).................    54,978       $143,058     $134,495     $157,021     $139,302     $133,828     $105,490
Expenses to average net      
 assets..................      2.32%*         2.28%        2.36%        2.34%        2.34%        2.30%        2.49%*
Net investment loss to       
 average net assets......     (1.48)%*       (1.92)%      (1.95)%      (1.87)%      (1.56)%      (1.60)%      (1.55)%*
Portfolio turnover.......        80%            64%          56%          57%          42%          60%          51%
 
<CAPTION>
                                                                MID CAP FUND
                           ---------------------------------------------------------------------------------------
                                                                   CLASS C
                           ---------------------------------------------------------------------------------------
                                                                                                           FOR THE
                              FOR THE                                                                      PERIOD
                            FIVE MONTHS                                                                    JULY 2,
                              ENDED                       FOR THE YEARS ENDED MARCH 31,                   1992+ TO
                             AUGUST 31,     --------------------------------------------------------      MARCH 31,
                              1998**          1998        1997         1996        1995        1994         1993
                           ------------     -------     -------     --------     -------     -------     ---------
<S>                          <C>            <C>         <C>         <C>          <C>         <C>         <C>
Net asset value,             
 beginning of period.....    $  14.07       $ 12.87     $ 15.14     $  12.54     $ 11.50     $ 10.47      $  8.89
                             --------       -------     -------     --------     -------     -------      -------
Net investment loss......       (0.06)        (0.26)      (0.29)       (0.27)      (0.19)      (0.10)       (0.05)
Net realized and             
 unrealized gains            
 (losses) from investment    
 transactions............       (2.90)         4.92        0.34         3.62        1.27        1.13         1.63
                             --------       -------     -------     --------     -------     -------      -------
Net increase (decrease)      
 from investment             
 operations..............       (2.96)         4.66        0.05         3.35        1.08        1.03         1.58
                             --------       -------     -------     --------     -------     -------      -------
Distributions from net       
 realized gains from         
 investments.............       (3.85)        (3.46)      (2.32)       (0.75)      (0.04)         --           --
                             --------       -------     -------     --------     -------     -------      -------
Net asset value, end of      
 period..................    $   7.26       $ 14.07     $ 12.87     $  15.14     $ 12.54     $ 11.50      $ 10.47
                             --------       -------     -------     --------     -------     -------      -------
                             --------       -------     -------     --------     -------     -------      -------
Total investment return      
 (1).....................      (27.58)%       40.46%      (0.91)%      27.16%       9.45%       9.84%       17.77%
                             --------       -------     -------     --------     -------     -------      -------
                             --------       -------     -------     --------     -------     -------      -------
Ratios/Supplemental Data:    
Net assets, end of period    
 (000's).................    $ 16,875       $27,814     $24,810     $ 27,601     $24,993     $29,884      $13,806
Expenses to average net          
 assets..................        2.28%*        2.29%       2.37%        2.36%       2.35%       2.28%        2.31%*
Net investment loss to             
 average net assets......       (1.42)%*      (1.94)%     (1.97)%      (1.89)%     (1.57)%     (1.58)%      (1.53)%*
Portfolio turnover.......          80%           64%         56%          57%         42%         60%          51%
</TABLE>
     
                              --------------------
                               Prospectus Page 37
<PAGE>
                         ------------------------------
 
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                        MID CAP FUND
                                 ---------------------------
                                           CLASS Y
                                 ---------------------------
                                                    FOR THE
                                  FOR THE           PERIOD
                                 FIVE MONTHS       MARCH 17,
                                   ENDED           1998+ TO
                                 AUGUST 31,        MARCH 31,
                                   1998**            1998
                                 ------------      ---------
<S>                              <C>               <C>
Net asset value,
 beginning of period.....          $  15.00        $   14.90
                                   --------        ---------
Net investment loss......             (0.01)            0.00
Net realized and
 unrealized gains
 (losses) from investment
 transactions............             (3.17)            0.10
                                   --------        ---------
Net increase (decrease)
 from investment
 operations..............             (3.18)            0.10
                                   --------        ---------
Distributions from net
 realized gains from
 investments.............             (3.85)              --
                                   --------        ---------
Net asset value, end of
 period..................          $   7.97        $   15.00
                                   --------        ---------
                                   --------        ---------
Total investment return
 (1).....................            (27.31)%           0.67%
                                   --------        ---------
                                   --------        ---------
Ratios/Supplemental Data:
Net assets, end of period
 (000's).................          $     65        $      35
Expenses to average net
 assets..................              1.23%*          1.22%*
Net investment loss to
 average net assets......             (0.29)%*          0.00%*
Portfolio turnover.......                80%             64%
</TABLE>
    
 
- ------------------
     *  Annualized
   
    **  Effective May 1, 1998, Mitchell Hutchins took over day-to-day 
        management of the Fund's assets.
    
     +  Commencement of offering of shares.
   
   (1)  Total investment return is calculated assuming a $1,000 investment on
        the first day of each period reported, reinvestment of all dividends and
        other distributions at net asset value on the payable dates and a sale
        at net asset value on the last day of each period reported. Total
        investment return information for periods of less than one year have not
        been annualized.
    
 
                              --------------------
                               Prospectus Page 38
<PAGE>


                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund



 
                      [This page intentionally left blank]



 
                              --------------------
                               Prospectus Page 39

<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
SMALL CAP FUND
 
   
The following table provides investors with data and ratios for one Class A,
Class B, Class C and Class Y share for each of the periods shown. This
information is supplemented by the financial statements, accompanying notes and
the report of PricewaterhouseCoopers LLP, independent accountants, which appear
in the Fund's Annual Report to Shareholders for the fiscal year ended July 31,
1998, and are incorporated by reference into the Statement of Additional
Information. The financial statements and notes, as well as the information
appearing below, have been audited by PricewaterhouseCoopers LLP. Further
information about the Fund's performance is also included in the Annual Report
to Shareholders, which may be obtained without charge by calling 1-800-647-1568.
    
 
   
<TABLE>
<CAPTION>
                                                                   SMALL CAP FUND
                                   ------------------------------------------------------------------------------
                                                                      CLASS A
                                   ------------------------------------------------------------------------------
                                                                                        FOR THE        FOR THE
                                                    FOR THE YEARS                        PERIOD         YEAR
                                                   ENDED JULY 31,                        ENDED          ENDED
                                   -----------------------------------------------      JULY 31,      JANUARY 31,
                                    1998         1997         1996#         1995         1994+          1994
                                   -------      -------      -------      --------      --------      -----------
<S>                                <C>          <C>          <C>          <C>           <C>           <C>
Net asset value, beginning of     
  period......................       13.42      $ 10.22      $ 11.30      $  10.27      $  10.61        $ 10.00
                                   -------      -------      -------      --------      --------        -------
Net investment income             
  (loss)......................       (0.13)       (0.14)        0.00@         0.05          0.02           0.13
Net realized and unrealized       
  gains (losses) from             
  investments.................        1.22         3.75         0.50@         1.50         (0.36)          0.62
                                   -------      -------      -------      --------      --------        -------
Net increase (decrease) from      
  investment operations.......        1.09         3.61         0.50          1.55         (0.34)          0.75
                                   -------      -------      -------      --------      --------        -------
Dividends from net investment     
  income......................          --           --           --            --            --          (0.12)
Distributions from net            
  realized gains from             
  investments.................       (1.17)       (0.41)       (1.58)        (0.52)           --          (0.02)
                                   -------      -------      -------      --------      --------        -------
Total dividends and               
  distributions...............       (1.17)       (0.41)       (1.58)        (0.52)         0.00          (0.14)
                                   -------      -------      -------      --------      --------        -------
Net asset value, end of           
  period......................     $ 13.34      $ 13.42      $ 10.22      $  11.30      $  10.27        $ 10.61
                                   -------      -------      -------      --------      --------        -------
                                   -------      -------      -------      --------      --------        -------
Total investment return (1)...        8.45 %      36.11%        4.69%        15.80%        (3.20)%         7.58%
                                   -------      -------      -------      --------      --------        -------
                                   -------      -------      -------      --------      --------        -------
                                  
Ratios/Supplemental Data:         
Net assets, end of period         
  (000's).....................     $47,589      $32,968      $30,675      $ 20,494      $ 22,848        $25,226
Expenses to average net           
  assets......................        1.56 %       2.00 %       2.11%         1.98%         1.91%*         1.75%
Net investment income (loss)      
  to average net assets.......       (0.99)%      (1.16)%       0.02%         0.41%         0.41%*         1.41%
Portfolio turnover............          45 %         54 %         84%           19%           20%            98%
</TABLE>
    
 
- ------------------
   
  * Annualized
    
  + For the period February 1, 1994 to July 31, 1994.
 ++ For the period July 26, 1996 (commencement of offering shares) to July 31,
    1996.
  # Effective April 1, 1996, Mitchell Hutchins took over day-to-day management
    of the Fund's assets.
  @ Calculated using the average shares outstanding for the period.
   
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period reported, reinvestment of all dividends and other
    distributions, if any, at net asset value on the payable dates, and a sale
    at net asset value on the last day of each period reported. The figures do
    not include sales charges; results for Class A, Class B and Class C shares
    would be lower if sales charges were included. Total investment return
    information for periods of less than one year has not been annualized.
    
 
                              --------------------
                               Prospectus Page 40
<PAGE>
                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------

   
<TABLE>
<CAPTION>
                                                                SMALL CAP FUND
                                  ---------------------------------------------------------------------------
                                                                    CLASS B
                                  ---------------------------------------------------------------------------
                                                                                    FOR THE
                                                  FOR THE YEARS                      PERIOD        FOR THE
                                                 ENDED JULY 31,                      ENDED        YEAR ENDED
                                  ---------------------------------------------     JULY 31,      JANUARY 31,
                                   1998        1997        1996#        1995         1994+          1994
                                  -------     -------     -------     ---------     ---------     -----------
<S>                               <C>         <C>         <C>         <C>           <C>           <C>
Net asset value, beginning of     
  period......................      13.00     $  9.98     $ 11.15      $ 10.22       $ 10.60        $ 10.00
                                  -------     -------     -------      -------       -------        -------
Net investment income             
  (loss)......................      (0.22)      (0.23)      (0.09)@      (0.04)        (0.02)          0.06
Net realized and unrealized       
  gains (losses) from             
  investments.................       1.17        3.66        0.50 @       1.49         (0.36)          0.62
                                  -------     -------     -------      -------       -------        -------
Net increase (decrease) from      
  investment operations.......       0.95        3.43        0.41         1.45         (0.38)          0.68
                                  -------     -------     -------      -------       -------        -------
Dividends from net investment     
  income......................         --          --          --           --            --          (0.06)
Distributions from net            
  realized gains from             
  investments.................      (1.17)      (0.41)      (1.58)       (0.52)           --          (0.02)
                                  -------     -------     -------      -------       -------        -------
Total dividends and               
  distributions...............      (1.17)      (0.41)      (1.58)       (0.52)         0.00          (0.08)
                                  -------     -------     -------      -------       -------        -------
Net asset value, end of           
  period......................    $ 12.78     $ 13.00     $  9.98      $ 11.15       $ 10.22        $ 10.60
                                  -------     -------     -------      -------       -------        -------
                                  -------     -------     -------      -------       -------        -------
Total investment return (1)...       7.60%      35.16%       3.90%       14.86%        (3.58)%         6.81%
                                  -------     -------     -------      -------       -------        -------
                                  -------     -------     -------      -------       -------        -------
                                  
Ratios/Supplemental Data:         
Net assets, end of period         
  (000's).....................     $54,639     $40,749     $36,612      $46,142       $52,624        $59,993
Expenses to average net           
  assets......................       2.33 %      2.75 %      2.90 %       2.74 %        2.69 %*        2.50%
Net investment income (loss)      
  to average net assets.......      (1.75)%     (1.91)%     (0.78)%      (0.35)%       (0.37)%*        0.67%
Portfolio turnover............         45 %        54 %        84 %         19 %          20 %           98%
 
<CAPTION>
                                --------------------------------------------------------------------------
                                                                  CLASS C
                                --------------------------------------------------------------------------
                                                                                 FOR THE
                                               FOR THE YEARS                      PERIOD        FOR THE
                                               ENDED JULY 31,                     ENDED        YEAR ENDED
                                --------------------------------------------     JULY 31,      JANUARY 31,
                                 1998       1997        1996#        1995         1994+          1994
                                -------    -------     -------     ---------     ---------     -----------
<S>                             <C>        <C>         <C>         <C>           <C>           <C>
Net asset value, beginning of     
  period......................    12.98    $  9.97     $ 11.14      $ 10.22       $ 10.59        $ 10.00
                                  -----    -------     -------      -------       -------        -------
Net investment income             
  (loss)......................    (0.21)     (0.24)      (0.08)@      (0.05)        (0.02)          0.06
Net realized and unrealized       
  gains (losses) from             
  investments.................     1.16       3.66        0.49 @       1.49         (0.35)          0.62
                                  -----    -------     -------      -------       -------        -------
Net increase (decrease) from      
  investment operations.......     0.95       3.42        0.41         1.44         (0.37)          0.68
                                  -----    -------     -------      -------       -------        -------
Dividends from net investment     
  income......................       --         --          --           --            --          (0.07)
Distributions from net            
  realized gains from             
  investments.................    (1.17)     (0.41)      (1.58)       (0.52)           --          (0.02)
                                  -----    -------     -------      -------       -------        -------
Total dividends and               
  distributions...............    (1.17)     (0.41)      (1.58)       (0.52)         0.00          (0.09)
                                  -----    -------     -------      -------       -------        -------
Net asset value, end of           
  period......................    12.76    $ 12.98     $  9.97      $ 11.14       $ 10.22        $ 10.59
                                  -----    -------     -------      -------       -------        -------
                                  -----    -------     -------      -------       -------        -------
Total investment return (1)...     7.61%     35.09%       3.90%       14.76%        (3.49)%         6.77%
                                  -----    -------     -------      -------       -------        -------
                                  -----    -------     -------      -------       -------        -------
                                  
Ratios/Supplemental Data:         
Net assets, end of period         
  (000's).....................    2,174    $18,812     $18,606      $13,263       $16,285        $20,941
Expenses to average net           
  assets......................     2.32 %     2.77 %      2.91 %       2.73 %        2.69 %*        2.50%
Net investment income (loss)      
  to average net assets.......    (1.75)%    (1.93)%     (0.77)%      (0.34)%       (0.36)%*        0.64%
Portfolio turnover............       45 %       54 %        84 %         19 %          20 %           98%
 
<CAPTION>
 
                                             CLASS Y
                                ----------------------------------
                                                         FOR THE
                                   FOR THE YEARS          PERIOD
                                   ENDED JULY 31,         ENDED
                                --------------------     JULY 31,
                                 1998        1997         1996++
                                -------    ---------     ---------
<S>                             <C>        <C>           <C>       
Net asset value, beginning of     
  period......................    13.46     $ 10.21       $ 10.23
                                  -----     -------       -------
Net investment income             
  (loss)......................    (0.07)      (0.11)         00.0 @
Net realized and unrealized       
  gains (losses) from             
  investments.................     1.20        3.77         (0.02)@
                                  -----     -------       -------
Net increase (decrease) from      
  investment operations.......     1.13        3.66         (0.02)
                                  -----     -------       -------
Dividends from net investment     
  income......................       --          --            --
Distributions from net            
  realized gains from             
  investments.................    (1.17)      (0.41)           --
                                  -----     -------       -------
Total dividends and               
  distributions...............    (1.17)      (0.41)         0.00
                                  -----     -------       -------
Net asset value, end of           
  period......................    13.42     $ 13.46       $ 10.21
                                  -----     -------       -------
                                  -----     -------       -------
Total investment return (1)...     8.74       36.65%        (0.20)%
                                  -----     -------       -------
                                  -----     -------       -------
                                  
Ratios/Supplemental Data:         
Net assets, end of period         
  (000's).....................    7,169     $ 2,768       $ 2,801
Expenses to average net           
  assets......................     1.39 %      1.72 %        1.72 %*
Net investment income (loss)      
  to average net assets.......    (0.83)%     (0.88)%        0.07 %*
Portfolio turnover............       45%         54 %          84 %
</TABLE>
    
 
                              --------------------
                               Prospectus Page 41
<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
GROWTH FUND
 
   
The following tables provide investors with data and ratios for one Class A,
Class B, Class C and Class Y share for each of the periods shown. This
information is supplemented by the financial statements, accompanying notes and
the report of Ernst & Young LLP, independent auditors, which appear in the
Fund's Annual Report to Shareholders for the fiscal year ended August 31, 1998,
and are incorporated by reference into the Statement of Additional Information.
The financial statements and notes, as well as the information for each of the
five years in the period ended August 31, 1998 appearing in the following
tables, have been audited by Ernst & Young LLP, independent auditors. Further
information about the Fund's performance is also included in the Annual Report
to Shareholders, which may be obtained without charge by calling 1-800-647-1568.
Information shown below for periods prior to the year ended August 31, 1994 has
also been audited by Ernst & Young LLP, independent auditors, whose reports
thereon were unqualified.
    

   
<TABLE>
<CAPTION>
                                                              GROWTH FUND
                            -----------------------------------------------------------------------------
                                                                CLASS A
                            -----------------------------------------------------------------------------
                                                     FOR THE YEARS ENDED AUGUST 31,
                            -----------------------------------------------------------------------------
                              1998        1997              1996        1995            1994        1993
                            --------    --------          --------    --------        --------    --------
<S>                         <C>         <C>               <C>         <C>             <C>         <C>
Net asset value,                     
 beginning of period.....   $  25.94    $  24.37          $  22.27    $  20.04        $  20.60    $  16.78
                            --------    --------          --------    --------        --------    --------
Net investment income                
 (loss)..................      (0.09)      (0.08)(3)        (0.12)      0.01              --        0.07
Net realized and                     
 unrealized gains                    
 (losses)                            
 from investments........       1.01        3.76 (3)         4.06       2.25            0.51        4.37
                            --------    --------          --------    --------        --------    --------
Total increase (decrease)            
 from investment                     
 operations..............       0.92        3.68              3.94        2.26            0.51        4.44
                            --------    --------          --------    --------        --------    --------
Dividends from net                   
 investment income.......         --          --                --          --              --          --
Distributions from net               
 realized gains on                   
 investment                          
 transactions............      (6.78)      (2.11)            (1.84)      (0.03)          (1.07)      (0.62)
                            --------    --------          --------    --------        --------    --------
Total dividends and                  
 distributions to                    
 shareholders............      (6.78)      (2.11)            (1.84)      (0.03)          (1.07)      (0.62)
                            --------    --------          --------    --------        --------    --------
Net asset value, end of              
 period..................   $  20.08    $  25.94          $  24.37    $  22.27        $  20.04    $  20.60
                            --------    --------          --------    --------        --------    --------
                            --------    --------          --------    --------        --------    --------
Total investment                     
 return(1)...............       3.37%      15.85%            18.43%      11.28%           2.33%      26.97%
                            --------    --------          --------    --------        --------    --------
                            --------    --------          --------    --------        --------    --------
Ratios/Supplemental data:            
Net assets, end of period            
 (000's).................   $202,253    $201,725          $203,882    $183,958        $141,342    $130,353
Expenses to average net              
 assets**................       1.19%       1.27%             1.28%       1.28%(2)         1.21%      1.22%
Net investment income                
 (loss) to average net               
 assets**................      (0.39)%     (0.32)%           (0.49)%      0.19%(2)         0.06%      0.38%
Portfolio turnover.......         52%         86%               60%         36%             24%         36%
   
<CAPTION>
 
                            ----------------------------------------
                                           CLASS A
                            ---------------------------------------- 
                                FOR THE YEARS ENDED AUGUST 31,
                            ---------------------------------------- 
                             1992       1991       1990       1989
                           --------   --------    -------    -------
<S>                         <C>       <C>         <C>        <C>
Net asset value,          
 beginning of period.....  $  17.50   $  13.43    $ 15.57    $ 11.21
                           --------   --------    -------    -------
Net investment income     
 (loss)..................        --       0.02       0.17       0.06
Net realized and          
 unrealized gains         
 (losses)                 
 from investments........     (0.11)      4.68      (1.16)      4.40
                           --------   --------    -------    -------
Total increase (decrease) 
 from investment          
 operations..............     (0.11)      4.70      (0.99)      4.46
                           --------   --------    -------    -------
Dividends from net        
 investment income.......     (0.01)     (0.17)        --      (0.10)
Distributions from net    
 realized gains on        
 investment               
 transactions............     (0.60)     (0.46)     (1.15)        --
                           --------   --------    -------    -------
Total dividends and       
 distributions to         
 shareholders............     (0.61)     (0.63)     (1.15)     (0.10)
                           --------   --------    -------    -------
Net asset value, end of   
 period..................  $  16.78   $  17.50    $ 13.43    $ 15.57
                           --------   --------    -------    -------
                           --------   --------    -------    -------
Total investment          
 return(1)...............     (0.85)%    37.02%     (7.05)%    40.10%
                           --------   --------    -------    -------
                           --------   --------    -------    -------
Ratios/Supplemental data: 
Net assets, end of period 
 (000's).................  $102,640   $ 96,796    $72,805    $71,681
Expenses to average net   
 assets**................      1.43%      1.56%      1.59%      1.37%
Net investment income     
 (loss) to average net    
 assets**................      0.00%      0.10%      2.96%      0.14%
Portfolio turnover.......        32%        29%        39%        44%
</TABLE>
    
 
- ------------------
  * Annualized.
   
 ** During certain periods presented, PaineWebber/Mitchell Hutchins waived fees
    or reimbursed the Fund for portions of its operating expenses. If such
    waivers or reimbursements had not been made for the Class A shares, the
    annualized ratio of expenses to average net assets and the annualized ratio
    of net investment income (loss) to average net assets would have been 1.76%
    and (0.25)%, respectively, for the year ended August 31, 1989.
    
  + Commencement of offering of shares.
   
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period reported, reinvestment of all dividends and other
    distributions at net asset value on the payable dates and a sale at net
    asset value on the last day of each period reported. The figures do not
    include sales charges; results would be lower if sales charges were
    included. Total investment returns information for periods less than one
    year have not been annualized.
    
(2) These ratios include non-recurring reorganization expenses of 0.06%.
   
(3) Calculated using the average shares outstanding for the year.
    
 
                              --------------------
                               Prospectus Page 42
<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------

   
<TABLE>
<CAPTION>
                                                                  GROWTH FUND
                          ------------------------------------------------------------------------------------------------
                                                                    CLASS B
                          --------------------------------------------------------------------------------------------------
                                                                                                                   FOR THE
                                                                                                                    PERIOD
                                                                                                                    JULY 1,
                                                     FOR THE YEARS ENDED AUGUST 31,                                1991+ TO
                          -------------------------------------------------------------------------------------   AUGUST 31,
                             1998         1997         1996         1995          1994        1993        1992       1991
                          --------     --------     --------     --------       -------     -------     -------   ----------
<S>                       <C>           <C>          <C>          <C>            <C>         <C>         <C>       <C>
Net asset value,                                                                           
 beginning of period.....  $  24.51     $  23.30     $  21.53     $  19.53       $ 20.25     $ 16.64     $ 17.48     $15.63
                           --------     --------     --------     --------       -------     -------     -------     ------
Net investment income                                                                      
 (loss)..................     (0.30)       (0.26)(3)    (0.39)       (0.02)        (0.06)      (0.05)      (0.06)     (0.02)
Net realized and                                                                           
 unrealized gains                                                                          
 (losses)                                                                                  
 from investments........      1.01         3.58 (3)     4.00         2.05          0.41        4.28       (0.18)      1.87
                           --------     --------     --------     --------       -------     -------     -------     ------
Total increase (decrease)                                                                  
 from investment                                                                           
 operations..............      0.71         3.32         3.61         2.03          0.35        4.23       (0.24)      1.85
                           --------     --------     --------     --------       -------     -------     -------     ------
Dividends from net                                                                         
 investment income.......        --           --           --           --            --          --          --         --
Distributions from net                                                                     
 realized gains on                                                                         
 investment                                                                                
 transactions............     (6.78)       (2.11)       (1.84)       (0.03)        (1.07)      (0.62)      (0.60)        --
                           --------     --------     --------     --------       -------     -------     -------     ------
Total dividends and                                                                        
 distributions to                                                                          
 shareholders............     (6.78)       (2.11)       (1.84)       (0.03)        (1.07)      (0.62)      (0.60)        --
                           --------     --------     --------     --------       -------     -------     -------     ------
Net asset value, end of                                                                    
 period..................  $  18.44     $  24.51     $  23.30     $  21.53       $ 19.53     $ 20.25     $ 16.64     $17.48
                           --------     --------     --------     --------       -------     -------     -------     ------
                           --------     --------     --------     --------       -------     -------     -------     ------
Total investment                                                                           
 return(1)...............      2.55%       14.98%       17.48%       10.40%         1.55%      25.91%      (1.58)%    11.84% 
                           --------     --------     --------     --------       -------     -------     -------     ------
                           --------     --------     --------     --------       -------     -------     -------     ------
Ratios/Supplemental data:                                                                  
Net assets, end of period                                                                  
 (000's).................  $ 74,094     $115,529     $140,551     $152,357       $97,272     $60,280     $35,867     $3,804
Expenses to average net                                                                    
 assets**................      1.99%        2.06%        2.06%        2.06%(2)      2.00%       2.02%       2.20%      2.24%*
Net investment income                                                                      
 (loss) to average net                                                                   
 assets**................     (1.18)%      (1.12)%      (1.27)%      (0.60)%(2)   (0.66)%      (0.46)%     (0.70)%    (0.81)%*
Portfolio turnover.......        52%          86%          60%          36%          24%          36%         32%        29%
 
<CAPTION>
                             --------------------------------------------------------------------------------------------
                                                                 CLASS C
                             --------------------------------------------------------------------------------------------
                                                                                                              FOR THE
                                                                                                               PERIOD
                                                                                                              JULY 2,
                                               FOR THE YEARS ENDED AUGUST 31,                                 1992+ TO
                             ---------------------------------------------------------------------------     AUGUST 31,
                                1998         1997           1996        1995          1994        1993         1992
                             ----------    --------        -------     -------       -------     -------     ----------
<S>                          <C>           <C>             <C>         <C>           <C>         <C>         <C>
Net asset value,                   
 beginning of period.....    $    24.71    $  23.48        $ 21.68     $ 19.67       $ 20.38     $ 16.75       $17.04
                             ----------    --------        -------     -------       -------     -------       ------
Net investment income              
 (loss)..................         (0.27)      (0.27)(3)      (0.34)      (0.10)        (0.08)      (0.06)       (0.01)
Net realized and                   
 unrealized gains                  
 (losses)                          
 from investments........          0.99        3.61 (3)       3.98        2.14          0.44        4.31        (0.28)
                             ----------    --------        -------     -------       -------     -------       ------
Total increase (decrease)          
 from investment                   
 operations..............          0.72        3.34           3.64        2.04          0.36        4.25        (0.29)
                             ----------    --------        -------     -------       -------     -------       ------
Dividends from net                 
 investment income.......            --          --             --          --            --          --           --
Distributions from net             
 realized gains on                 
 investment                        
 transactions............         (6.78)      (2.11)         (1.84)      (0.03)        (1.07)      (0.62)          --
                             ----------    --------        -------     -------       -------     -------       ------
Total dividends and                
 distributions to                  
 shareholders............         (6.78)      (2.11)         (1.84)      (0.03)        (1.07)      (0.62)          --
                             ----------    --------        -------     -------       -------     -------       ------
Net asset value, end of            
 period..................    $    18.65    $  24.71        $ 23.48     $ 21.68       $ 19.67     $ 20.38       $16.75
                             ----------    --------        -------     -------       -------     -------       ------
                             ----------    --------        -------     -------       -------     -------       ------
Total investment                   
 return(1)...............          2.59%      14.95%         17.50%      10.37%         1.59%      25.86%       (2.95)%
                             ----------    --------        -------     -------       -------     -------       ------
                             ----------    --------        -------     -------       -------     -------       ------
Ratios/Supplemental data:          
Net assets, end of period          
 (000's).................    $   21,714    $ 24,760        $29,923     $30,608       $28,561     $16,474       $2,275
Expenses to average net            
 assets**................          1.99%       2.07%          2.07%       2.05 %(2)      1.98%      2.06%        1.98%*
Net investment income              
 (loss) to average net    
 assets**................         (1.19)%     (1.13)%        (1.28)%     (0.57)%(2)     (0.65)%     (0.69)%      (0.65)%*
Portfolio turnover.......            52%         86%            60%         36%            24%         36%          32%
</TABLE>
    
 
                              --------------------
                               Prospectus Page 43
<PAGE>
                         ------------------------------
 
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                   GROWTH FUND
                              -------------------------------------------------------------------------------------
                                                                     CLASS Y
                              -------------------------------------------------------------------------------------
                                                         FOR THE YEARS ENDED AUGUST 31,
                              -------------------------------------------------------------------------------------
                               1998         1997         1996         1995         1994         1993         1992
                              -------      -------      -------      -------      -------      -------      -------
<S>                           <C>          <C>          <C>          <C>          <C>          <C>          <C>
Net asset value,
 beginning of year.......     $ 26.46      $ 24.74      $ 22.53      $ 20.22      $ 20.71      $ 16.83      $ 17.50
                              -------      -------      -------      -------      -------      -------      -------
Net investment income
 (loss)..................       (0.03)       (0.01)(3)    (0.02)        0.24         0.03         0.08         0.05
Net realized and
 unrealized gains
 (losses) from
 investments.............        1.02         3.84 (3)     4.07         2.10         0.55         4.42        (0.11)
                              -------      -------      -------      -------      -------      -------      -------
Total increase (decrease)
 from investment
 operations..............        0.99         3.83         4.05         2.34         0.58         4.50        (0.06)
                              -------      -------      -------      -------      -------      -------      -------
Dividends from net
 investment income.......          --           --           --           --           --           --        (0.01)
Distributions from net
 realized gains on
 investment
 transactions............       (6.78)       (2.11)       (1.84)       (0.03)       (1.07)       (0.62)       (0.60)
                              -------      -------      -------      -------      -------      -------      -------
Total dividends and
 distributions...........       (6.78)       (2.11)       (1.84)       (0.03)       (1.07)       (0.62)       (0.61)
                              -------      -------      -------      -------      -------      -------      -------
Net asset value, end of
 year....................     $ 20.67      $ 26.46      $ 24.74      $ 22.53      $ 20.22      $ 20.71      $ 16.83
                              -------      -------      -------      -------      -------      -------      -------
                              -------      -------      -------      -------      -------      -------      -------
Total investment
 return(1)...............        3.61%       16.24%       18.72%       11.58%        2.67%       27.26%       (0.52)%
                              -------      -------      -------      -------      -------      -------      -------
                              -------      -------      -------      -------      -------      -------      -------
Ratios/supplemental data:
Net assets, end of year
 (000's).................     $21,440      $20,281      $21,409      $20,948      $30,521      $20,706      $11,581
Expenses to average net
 assets..................        0.91%        1.00%        1.02%        0.97%(2)     0.94%        0.95%        1.12%
Net investment income
 (loss) to average net
 assets..................       (0.12)%      (0.05)%      (0.23)%       0.53%(2)     0.40%        0.60%        0.38%
Portfolio turnover.......          52 %         86 %         60 %         36%          24%          36%          32%
</TABLE>
    
 
- ------------------
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each year reported, reinvestment of all dividends and other
    distributions at net asset value on the payable dates and a sale at net
    asset value on the last day of each year reported.
(2) These ratios include non-recurring acquisition expenses of 0.05%.
   
(3) Calculated using the average shares outstanding for the year.
    
 
                              --------------------
                               Prospectus Page 44
<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund



 
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                              --------------------
                               Prospectus Page 45

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund



 
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                              --------------------
                               Prospectus Page 46

<PAGE>

                         ------------------------------
PaineWebber   Growth and Income Fund   Mid Cap Fund  Small Cap Fund  Growth Fund



 
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                              --------------------
                               Prospectus Page 47

<PAGE>
   
                       PaineWebber Growth and Income Fund
                            PaineWebber Mid Cap Fund
                           PaineWebber Small Cap Fund
                            PaineWebber Growth Fund
    
 
   
                        PROSPECTUS--NOVEMBER 30, 1998
    
- ------------------------------------------------------------------------------- 

   
<TABLE>
<S>                                                 <C>
O PAINEWEBBER BOND FUNDS                            O PAINEWEBBER STOCK FUNDS

  High Income Fund                                  Financial Services Growth Fund
  Investment Grade Income Fund                      Growth Fund
  Low Duration U.S. Government                      Growth and Income Fund
    Income Fund                                     Mid Cap Fund
  Strategic Income Fund                             Small Cap Fund
  U.S. Government Income Fund                       S&P 500 Index Fund
                                                    Tax-Managed Equity Fund
O PAINEWEBBER TAX-FREE BOND FUNDS                   Utility Income Fund

  California Tax-Free Income Fund                   O PAINEWEBBER GLOBAL FUNDS
  Municipal High Income Fund                        
  National Tax-Free Income Fund                     Asia Pacific Growth Fund
  New York Tax-Free Income Fund                     Emerging Markets Equity Fund
                                                    Global Equity Fund
O PAINEWEBBER ASSET                                 Global Income Fund
  ALLOCATION FUNDS                                  
                                                    O PAINEWEBBER MONEY MARKET FUND
  Balanced Fund                                     
  Tactical Allocation Fund                          O PAINEWEBBER FUNDS OF FUNDS

                                                    Mitchell Hutchins Conservative Portfolio
                                                    Mitchell Hutchins Moderate Portfolio
                                                    Mitchell Hutchins Aggressive Portfolio
</TABLE>
    
 
        A prospectus containing more complete information for any of
        these funds, including charges and expenses, can be obtained
        from a PaineWebber investment executive or correspondent firm.
        Please read it carefully before investing. It is important you
        have all the information you need to make a sound investment
        decision.
 
   
(Copyright) 1998 PaineWebber Incorporated
    
 
<PAGE>
   
                       PAINEWEBBER GROWTH AND INCOME FUND
                            PAINEWEBBER MID CAP FUND
                           PAINEWEBBER SMALL CAP FUND
                            PAINEWEBBER GROWTH FUND
                          1285 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10019
    
 
                      STATEMENT OF ADDITIONAL INFORMATION
 
   
     The four funds named above (each a "Fund") are diversified series of
professionally managed, open-end management investment companies organized as
Massachusetts business trusts (each a "Trust"). PaineWebber Growth and Income
Fund ("Growth and Income Fund"), a series of PaineWebber America Fund ("America
Fund"), seeks to provide current income and capital growth by investing
primarily in dividend-paying equity securities believed to have potential for
rapid earnings growth. PaineWebber Mid Cap Fund ("Mid Cap Fund"), a series of
PaineWebber Managed Assets Trust ("Managed Assets Trust"), seeks capital
appreciation by investing primarily in common stocks of medium-sized companies.
PaineWebber Small Cap Fund ("Small Cap Fund"), a series of PaineWebber
Securities Trust ("Securities Trust"), seeks long-term capital appreciation by
investing primarily in equity securities of small capitalization companies.
PaineWebber Growth Fund ("Growth Fund"), a series of PaineWebber Olympus Fund
("Olympus Fund"), seeks long-term capital appreciation by investing primarily in
equity securities of companies believed to have substantial potential for
capital growth.
    
 
     Mitchell Hutchins Asset Management Inc. ("Mitchell Hutchins"), a wholly
owned asset management subsidiary of PaineWebber Incorporated ("PaineWebber"),
serves as investment adviser, administrator and distributor for each Fund. As
distributor, Mitchell Hutchins has appointed PaineWebber as the exclusive dealer
for the sale of Fund shares.
 
   
     This Statement of Additional Information is not a prospectus and should be
read only in conjunction with the Funds' current Prospectus, dated November 30,
1998. A copy of the Prospectus may be obtained by calling any PaineWebber
investment executive or correspondent firm or by calling toll-free
1-800-647-1568. This Statement of Additional Information is dated November 30,
1998.
    
 
                      INVESTMENT POLICIES AND RESTRICTIONS
 
     The following supplements the information contained in the Prospectus
concerning the Funds' investment policies and limitations. Except as otherwise
indicated in the Prospectus or Statement of Additional Information, there are no
policy limitations on a Fund's ability to use the investments or techniques
discussed in these documents.
 
   
     YIELD FACTORS AND RATINGS.  Moody's Investors Service, Inc. ("Moody's"),
Standard & Poor's, a division of The McGraw-Hill Companies, Inc. ("S&P"), and
other nationally recognized statistical rating organizations ("NRSROs") are
private services that provide ratings of the credit quality of bonds, debt
obligations and certain other securities. A description of the ratings assigned
to corporate debt obligations by Moody's and S&P is included in the Appendix to
this Statement of Additional Information. The Funds may use these ratings in
determining whether to purchase, sell or hold a security. It should be
emphasized, however, that ratings are general and are not absolute standards of
quality. Consequently, securities with the same maturity, interest rate and
rating may have different market prices.
    
 
     Ratings of debt securities represent the NRSROs' opinions regarding their
quality, are not a guarantee of quality, and may be reduced after a Fund has
acquired the security. Mitchell Hutchins will consider such an event in
determining whether a Fund should continue to hold the security but is not
required to dispose of it. In the event that, due to a downgrade of one or more
debt securities, an amount in excess of the permitted percentage of a Fund's net
assets is held in securities rated below investment grade and comparable unrated
securities, the Fund will engage in an orderly disposition of such securities to
the extent necessary to ensure that its holdings of such securities does not
exceed that percentage.
 
     Debt securities rated Ba or lower by Moody's, BB or lower by S&P,
comparably rated by another NRSRO or determined by Mitchell Hutchins to be of
comparable quality are below investment grade, are

<PAGE>

deemed by those agencies to be predominantly speculative with respect to the
issuer's capacity to pay interest and repay principal and may involve major risk
exposure to adverse conditions. Lower rated debt securities generally offer a
higher current yield than that available for investment grade issues, but they
involve higher risks, in that they are especially subject to adverse changes in
general economic conditions and in the industries in which the issuers are
engaged, to changes in the financial condition of the issuers and to price
fluctuations in response to changes in interest rates. During periods of
economic downturn or rising interest rates, highly leveraged issuers may
experience financial stress which could adversely affect their ability to make
payments of interest and principal and increase the possibility of default. In
addition, such issuers may not have more traditional methods of financing
available to them and may be unable to repay debt at maturity by refinancing.
The risk of loss due to default by such issuers is significantly greater because
such securities frequently are unsecured and subordinated to the prior payment
of senior indebtedness.
 
   
     The market for lower rated debt securities has expanded rapidly in recent
years, which has been a period of generally expanding growth and lower
inflation. These securities will be susceptible to greater risk when economic
growth slows or reverses and when inflation increases or deflation occurs. In
the past, the prices of many lower rated debt securities declined substantially,
reflecting an expectation that many issuers of such securities might experience
financial difficulties. As a result, the yields on lower rated debt securities
rose dramatically. However, such higher yields did not reflect the value of the
income stream that holders of such securities expected, but rather the risk that
holders of such securities could lose a substantial portion of their value as a
result of the issuers' financial restructuring or defaults. There can be no
assurance that such declines will not recur. The market for lower rated debt
issues generally is thinner and less active than that for higher quality
securities, which may limit a Fund's ability to sell such securities at fair
value in response to changes in the economy or financial markets. Adverse
publicity and investor perceptions, whether or not based on fundamental
analysis, may also decrease the values and liquidity of lower rated securities,
especially in a thinly traded market.
    
 
     RISK CONSIDERATIONS RELATING TO FOREIGN SECURITIES.  Securities of foreign
issuers may not be registered with the Securities and Exchange Commission
("SEC"), nor may the issuers thereof be subject to its reporting requirements.
Accordingly, there may be less publicly available information concerning foreign
issuers of securities held by the Funds 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.
 
     The Funds may invest in foreign securities by purchasing American
Depository Receipts ("ADRs"). Generally, ADRs, in registered form, are
denominated in U.S. dollars and are designed for use in the U.S. securities
markets. ADRs are receipts typically issued by a U.S. bank or trust company
evidencing ownership of the underlying securities. 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 ("OTC") 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.  Each Fund may invest up to 10% of its net assets (15%
for Small Cap Fund) in illiquid securities. The term "illiquid securities" for
this purpose 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 OTC options,
repurchase agreements maturing in more than seven days and restricted securities
other than those Mitchell Hutchins has determined are liquid pursuant to
guidelines established by each Trust's board of trustees ("board"). The assets
used as cover for OTC options written by each Fund will be considered illiquid
unless the OTC options are sold to qualified
    
 
                                       2
<PAGE>

dealers who agree that the Fund may repurchase any OTC option it writes at a
maximum price to be calculated by a formula set forth in the option agreement.
The cover for an OTC 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.
 
   
     Restricted securities are not registered under the Securities Act of 1933
("1933 Act") and may be sold only in privately negotiated transactions or other
exempted transactions or after a 1933 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 the 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.
    
 
   
     Not all restricted securities are illiquid. A large institutional market
has developed for many securities that are not registered under the 1933 Act.
Institutional investors generally will not seek to sell these instruments to the
general public, but instead will often depend either on an efficient
institutional market in which such unregistered securities can be readily resold
or on an issuer's ability to honor a demand for repayment. Therefore, the fact
that there are contractual or legal restrictions on resale to the general public
or certain institutions is not dispositive of the liquidity of such investments.
    
 
   
     Institutional markets for restricted securities also have developed as a
result of Rule 144A, which establishes a "safe harbor" from the registration
requirements of the 1933 Act for resales of certain securities to qualified
institutional buyers. Such markets include automated systems for the trading,
clearance and settlement of unregistered securities of domestic and foreign
issuers, such as the PORTAL System sponsored by the National Association of
Securities Dealers, Inc. An insufficient number of qualified institutional
buyers interested in purchasing Rule 144A-eligible restricted securities held by
the Funds, however, could affect adversely the marketability of such portfolio
securities, and the Funds might be unable to dispose of such securities promptly
or at favorable prices.
    
 
     Each board has delegated the function of making day-to-day determinations
of liquidity to Mitchell Hutchins, pursuant to guidelines approved by the board.
Mitchell Hutchins takes into account a number of factors in reaching liquidity
decisions, 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 offers are solicited
and the mechanics of transfer). Mitchell Hutchins monitors the liquidity of
restricted securities in each Fund's portfolio and reports periodically on such
decisions to the boards.
 
     CONVERTIBLE SECURITIES.  A convertible security entitles the holder to
receive interest paid or accrued on debt or the dividend paid on preferred stock
until the convertible security matures or is redeemed, converted or exchanged.
Before conversion, convertible securities have characteristics similar to
nonconvertible debt securities in that they ordinarily provide a stable stream
of income with generally higher yields than those of common stocks of the same
or similar issuers. Convertible securities rank senior to common stock in a
corporation's capital structure but are usually subordinated to comparable
non-convertible securities.
 
     Convertible securities have unique investment characteristics in that they
generally (1) have higher yields than common stocks, but lower yields than
comparable non-convertible securities, (2) are less subject to fluctuation in
value than the underlying stock since they have fixed income characteristics and
(3) provide the potential for capital appreciation if the market price of the
underlying common stock increases. The value of a convertible security is a
function of its "investment value" (determined by its yield comparison with the
yields of other securities of comparable maturity and quality that do not have a
conversion privilege) and its "conversion value" (the security's worth, at
market value, if converted into the underlying common stock). The investment
value of a convertible security is influenced by changes in interest rates, with
investment value declining as interest rates increase and increasing as interest
rates decline. The credit standing of the issuer and other factors also may have
an effect on the convertible security's investment value. The conversion value
of a convertible security is determined by the market price of the underlying
common stock. If the conversion value is
 
                                       3
<PAGE>

low relative to the investment value, the price of the convertible security is
governed principally by its investment value, and generally the conversion value
decreases as the convertible security approaches maturity. To the extent the
market price of the underlying common stock approaches or exceeds the conversion
price, the price of the convertible security will be increasingly influenced by
its conversion value. In addition, a convertible security generally will sell at
a premium over its conversion value determined by the extent to which investors
place value on the right to acquire the underlying common stock while holding a
fixed income security.
 
     A convertible security may be subject to redemption at the option of the
issuer at a price established in the convertible security's governing
instrument. If a convertible security held by a Fund is called for redemption,
the Fund will be required to permit the issuer to redeem the security, convert
it into underlying common stock or sell it to a third party.
 
     Lower rated convertible securities generally offer a higher current yield
than that available from higher grade issues, but they involve higher risks, in
that they are especially subject to adverse changes in general economic
conditions and in the industries in which the issuers are engaged, to changes in
the financial condition of the issuers and to price fluctuation in response to
changes in interest rates. During periods of economic downturn or rising
interest rates, highly leveraged issuers may experience financial stress, which
could adversely affect their ability to make payments of principal and interest
(or, in the case of convertible preferred stock, dividends) and increase the
possibility of default. In addition, such issuers may not have more traditional
methods of financing available to them, and may be unable to repay debt at
maturity by refinancing. The risk of loss due to default by such issuers is
significantly greater because such securities frequently are unsecured and
subordinated to the prior payment of senior indebtedness.
 
   
     MONEY MARKET INSTRUMENTS.  Money market instruments in which each 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
and savings banks; investment grade commercial paper and other short-term
corporate obligations; variable and floating-rate securities; and repurchase
agreements. In addition, each 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.
    
 
   
     GOVERNMENT SECURITIES.  Government securities in which the Funds 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 the Funds 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 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. The Fund maintains custody of the
underlying obligations prior to their repurchase, either through its regular
custodian or through a special "tri-party" custodian or subcustodian 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. 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 a Fund upon
acquisition is accrued as interest and included in its net investment income.
    
 
   
     The Funds intend to enter into repurchase agreements only with banks and
dealers in transactions believed by Mitchell Hutchins to present minimal credit
risks in accordance with guidelines established by each board. Mitchell Hutchins
reviews and monitors the creditworthiness of those institutions under each
board's general supervision.
    
 
                                       4
<PAGE>

   
     REVERSE REPURCHASE AGREEMENTS.  The Funds may enter into reverse repurchase
agreements with banks and securities dealers up to an aggregate value of not
more than 5% of a Fund's net assets (10% of total assets for Small Cap Fund).
Such agreements involve the sale of securities held by a Fund subject to its
agreement to repurchase the securities at an agreed-upon date and 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's custodian segregates assets to
cover the Fund's obligations under the reverse repurchase agreement. See
"Investment Policies and Restrictions--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, the buyer or a 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 portfolio
securities up to 33 1/3% of its total assets to broker-dealers or institutional
investors that Mitchell Hutchins deems qualified, but only when the borrower
maintains with that Fund's custodian bank acceptable collateral, marked to
market daily, in an amount 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 cash
collateral in money market instruments or other short-term liquid investments.
In determining whether to lend securities to a particular broker-dealer or
institutional investor, Mitchell Hutchins will consider, and during the period
of the loan will monitor, all relevant facts and circumstances, including the
creditworthiness of the borrower. Each Fund will retain authority to terminate
any of its loans at any time. 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 cash or money market instruments held as collateral.
Each Fund will receive amounts equivalent to any dividends, interest or other
distributions on the securities loaned. Each Fund will regain record ownership
of loaned securities to exercise beneficial rights, such as voting and
subscription rights and rights to dividends, interest or other distributions,
when regaining such rights is considered to be in the Fund's interest.
    
 
   
     Pursuant to procedures adopted by the boards governing each Fund's
securities lending program, PaineWebber has been retained to serve as lending
agent for each Fund. The appropriate board also has authorized the payment of
fees (including fees calculated as a percentage of invested cash collateral) to
PaineWebber for these services. Each 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 that 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, that Fund
maintains with its custodian, in a segregated account, the securities that could
be used to cover the short sale. Each Fund will incur transaction costs,
including interest expense, in connection with opening, maintaining and closing
short sales against the box. No Fund currently expects to have obligations under
short sales that at any time during the coming year exceed 5% of its net assets.
 
     The Funds might make a short sale "against the box" in order to hedge
against market risks when Mitchell Hutchins believes that the price of a
security may decline, thereby causing a decline in the value of a security owned
by a Fund or a security convertible into or exchangeable for a security owned by
a Fund. In such case, any loss in a Fund's long position after the short sale
should be reduced by a corresponding gain in the short position. Conversely, any
gain in the long position after the short sale should be reduced by a
corresponding 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 the securities a Fund owns,
 
                                       5
<PAGE>

either directly or indirectly, and in the case where a Fund owns convertible
securities, changes in the investment values 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." In when-issued or delayed delivery transactions, delivery of
the securities occurs beyond normal settlement periods, but a Fund generally
would not pay for such securities or start earning interest or dividends on them
until they are delivered. However, when a Fund purchases securities on a
when-issued or delayed delivery basis, it immediately assumes the risks of
ownership, including the risk of price fluctuation. Failure by a counterparty to
deliver a security purchased on a when-issued or delayed delivery basis may
result in a loss or missed 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 the Fund's
total assets, including the value of when-issued and delayed delivery securities
held by the 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.
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 agrees to purchase
securities on a when-issued basis, its custodian segregates assets to cover the
amount of the commitment. See "Investment Policies and Restrictions--Segregated
Accounts." The Funds purchase when-issued securities only with the intention of
taking delivery, but may sell the right to acquire the security prior to
delivery if Mitchell Hutchins deems it advantageous to do so, which may result
in capital gain or loss to a Fund.
 
   
     SEGREGATED ACCOUNTS.  When a Fund enters into certain transactions that
involve obligations to make future payments to third parties, such as reverse
repurchase agreements or the purchase of securities on a when-issued or delayed
delivery basis, 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 the 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 contracts.
    
 
     FUNDAMENTAL INVESTMENT 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 that Fund or (b) 67% or
more of the shares of that 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, a later increase or decrease in percentage resulting from a change
in values of portfolio securities or amount of total assets will not be
considered a violation of any of the following limitations.
 
      Each Fund will not:
 
     (1) purchase securities of any one issuer if, as a result, more than 5% of
the Fund's total assets would be invested in securities of that issuer or the
Fund would own or hold more than 10% of the outstanding voting securities of
that issuer, except that up to 25% of the Fund's total assets may be invested
without regard to this limitation, and except that this limitation does not
apply to securities issued or guaranteed by the U.S. government, its agencies
and instrumentalities or to securities issued by other investment companies.
 
     The following interpretation applies to, but is not a part of, this
fundamental 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.
 
     (2) purchase any security if, as a result of that purchase, 25% or more of
the Fund's total assets would be invested in securities of issuers having their
principal business activities in the same industry, except that this limitation
does not apply to securities issued or guaranteed by the U.S. government, its
agencies or instrumentalities or to municipal securities.
 
                                       6
<PAGE>

     (3) issue senior securities or borrow money, except as permitted under the
Investment Company Act of 1940 ("1940 Act") and then not in excess of 33 1/3% of
the Fund's total assets (including the amount of the senior securities issued
but reduced by any liabilities not constituting senior securities) at the time
of the issuance or borrowing, except that the Fund may borrow up to an
additional 5% of its total assets (not including the amount borrowed) for
temporary or emergency purposes.
 
     (4) make loans, except through loans of portfolio securities or through
repurchase agreements, provided that for purposes of this restriction, the
acquisition of bonds, debentures, other debt securities or instruments, or
participations or other interests therein and investments in government
obligations, commercial paper, certificates of deposit, bankers' acceptances or
similar instruments will not be considered the making of a loan.
 
     (5) engage in the business of underwriting securities of other issuers,
except to the extent that the Fund might be considered an underwriter under the
federal securities laws in connection with its disposition of portfolio
securities.
 
     (6) purchase or sell real estate, except that investments in securities of
issuers that invest in real estate and investments in mortgage-backed
securities, mortgage participations or other instruments supported by interests
in real estate are not subject to this limitation, and except that the Fund may
exercise rights under agreements relating to such securities, including the
right to enforce security interests and to hold real estate acquired by reason
of such enforcement until that real estate can be liquidated in an orderly
manner.
 
     (7) purchase or sell physical commodities unless acquired as a result of
owning securities or other instruments, but the Fund may purchase, sell or enter
in financial options and futures, forward and spot currency contracts, swap
transactions and other financial contracts or derivative instruments.
 
     NON-FUNDAMENTAL LIMITATIONS.  The following investment restrictions are not
fundamental and may be changed by each board without shareholder approval.
 
     Each Fund will not:
 
   
     (1) invest more than 10% of its net assets (15% of net assets for Small Cap
Fund) 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 1940 Act (and except that each Fund will not purchase
securities of registered open-end investment companies or registered unit
investment trusts in reliance on sections 12(d)(1)(F) or 12(d)(1)(G) of the 1940
Act) and except that this limitation does not apply to securities received or
acquired as dividends, through offers of exchange, or as a result of
reorganization, consolidation, or merger.
 
       
   
                    STRATEGIES USING DERIVATIVE INSTRUMENTS
    
 
   
     GENERAL DESCRIPTION OF DERIVATIVE INSTRUMENTS.  Mitchell Hutchins may use a
variety of financial instruments ("Derivative Instruments"), including certain
options, futures contracts (sometimes referred to as "futures") and options on
futures contracts, to attempt to hedge each Fund's portfolio. 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 Derivative Instruments will place at risk a much
smaller portion of its assets. In particular, each Fund may use the Derivative
Instruments described below:
    
 
   
     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,
    
 
                                       7
<PAGE>

   
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 STOCK INDEXES--A stock index assigns relative values to the
stocks included in the index and fluctuates with changes in the market values of
those stocks. A stock index option operates in the same way as a more
traditional stock option, except that exercise of a stock index option is
effected with cash payment and does not involve delivery of securities. Thus,
upon exercise of a stock 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 stock index.
 
     STOCK INDEX FUTURES CONTRACTS--A stock 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 specified dollar
amount times the difference between the stock 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 stocks 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.  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 to
partially or fully 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, a 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, a Fund could exercise the call and thus limit its acquisition
cost to the exercise price plus the premium paid and transaction costs.
Alternatively, a Fund might be able to offset the price increase by closing out
an appreciated call option and realizing a gain.
 
                                       8
<PAGE>

   
     A Fund may purchase and write (sell) covered 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 Mitchell Hutchins 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
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
Mitchell Hutchins believes it unlikely that the prices of the securities will be
as volatile during the term of the option as the option pricing implies.
    
 
     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.
 
   
     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
the Prospectus, Mitchell Hutchins expects to discover additional opportunities
in connection with options, futures contracts and other hedging techniques.
These new opportunities may become available as Mitchell Hutchins develops new
techniques, as regulatory authorities broaden the range of permitted
transactions and as new options, futures contracts, or other techniques are
developed. Mitchell Hutchins may utilize these opportunities to the extent that
they are consistent with a Fund's investment objective and permitted by the
Fund's investment limitations and applicable regulatory authorities. The Funds'
Prospectus or Statement of Additional Information 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 Mitchell Hutchins 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 Mitchell Hutchins is experienced in the
use of Derivative Instruments, there can be no assurance that any particular
hedging 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 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 Mitchell Hutchins 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 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, that Fund could
suffer a loss. In either such case, the 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
positions in Derivative Instruments involving obligations to third parties
(i.e., Derivative Instruments other than purchased options). If the Fund were
unable to close out
    
 
                                       9
<PAGE>

   
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 position in a Derivative
Instrument 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 the Funds 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,
other options or futures contracts or (2) cash and liquid securities, with a
value sufficient at all times to cover its potential obligations to the extent
not covered as provided in (1) above. The Funds will comply with SEC guidelines
regarding cover for these 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, the commitment of a large portion of
a Fund's assets to cover or segregated accounts could impede portfolio
management or the Fund's ability to meet redemption requests or other current
obligations.
 
     OPTIONS.  The Funds 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 serves as a long hedge, and the purchase of put
options serves as a short hedge. 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 OTC options written by a Fund would be considered
illiquid to the extent described under "Investment Policies and
Restrictions--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. 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 transaction. Closing transactions permit a Fund to realize profits or limit
losses on an option position prior to its exercise or expiration.
 
   
     The Funds may purchase and write both exchange-traded and OTC options.
Exchange markets for options on debt securities exist but are relatively new,
and these instruments are primarily traded on the OTC market. Exchange-traded
options in the United States are issued by a clearing organization affiliated
with the exchange on which the option is listed that, in effect, guarantees
completion of every exchange-traded option transaction. In contrast, OTC 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 OTC option, it relies on the counterparty to make or take delivery
of the underlying investment upon exercise of the
    
 
                                       10
<PAGE>

   
option. Failure by the counterparty to do so would result in the loss of any
premium paid by the Fund as well as the loss of any expected benefit of the
transaction.
    
 
   
     Generally, the OTC debt options used by the Funds are European-style
options. This means that the option is only exercisable immediately prior to its
expiration. This is in contrast to American-style options, which are exercisable
at any time prior to the expiration date of the option.
    
 
   
     The Funds' ability to establish and close out positions in exchange-traded
options depends 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
OTC 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 OTC options only with counterparties that are expected to
be capable of entering into closing transactions with the Funds, there is no
assurance that the Funds will in fact be able to close out an OTC option
position at a favorable price prior to expiration. In the event of insolvency of
the counterparty, the Funds might be unable to close out an OTC 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 a Fund could cause material losses because the 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 stock 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 the equity
securities market (or market sectors) rather than anticipated increases or
decreases in the value of a particular security.
    
 
     LIMITATIONS ON THE USE OF OPTIONS.  The Funds' use of options is governed
by the following guidelines, which can be changed by each board without
shareholder vote:
 
          (1) Each Fund may purchase a put or call option, including any
     straddle or spread, only if the value of its premium, when aggregated with
     the premiums on all other options held by that Fund, does not exceed 5% of
     its total assets.
 
          (2) The aggregate value of underlying securities on which a Fund
     writes covered calls will not exceed 50% of its total assets.
 
   
          (3) The aggregate premiums paid on all options (including options on
     securities and stock or bond indices and options on futures contracts)
     purchased by a Fund that are held at any one time will not exceed 20% of
     its net assets.
    
 
     FUTURES.  The Funds may purchase and sell stock index futures contracts and
interest rate futures contracts. The Funds 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.
 
   
     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 U.S. government 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 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.
    
 
                                       11
<PAGE>

     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 each 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.
 
     LIMITATIONS ON THE USE OF FUTURES AND RELATED OPTIONS.  The Funds' use of
futures and related options is governed by the following guidelines, which can
be changed by each board without shareholder vote:
 
          (1) 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.
 
          (2) The aggregate premiums paid on all options (including options on
     securities and stock or bond indices and options on futures contracts)
     purchased by a Fund that are held at any one time will not exceed 20% of
     its net assets.
 
          (3) The aggregate margin deposits on all futures contracts and options
     thereon held at any one time by a Fund will not exceed 5% of its total
     assets.
 
                                       12

<PAGE>
             TRUSTEES AND OFFICERS; PRINCIPAL HOLDERS OF SECURITIES
 
   
     The trustees and executive officers of each Trust (the same positions are
held in each of the four Trusts, except as otherwise indicated), their ages,
business addresses and principal occupations during the past five years are:
    
 
   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
Margo N. Alexander**; 51                      Trustee and          Mrs. Alexander is president, chief executive
                                               President             officer and a director of Mitchell Hutch-
                                                                     ins (since January 1995) and an executive
                                                                     vice president and a director of Paine-
                                                                     Webber (since March 1994). Mrs. Alexander
                                                                     is president and a director or trustee of
                                                                     32 investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Richard Q. Armstrong; 63                        Trustee            Mr. Armstrong is chairman and principal of
One Old Church Road                                                  R.Q.A. Enterprises (management consulting
Unit #6                                                              firm) (since April 1991 and principal
Greenwich, CT 06830                                                  occupation since March 1995). Mr. Armstrong
                                                                     was chairman of the board, chief executive
                                                                     officer and co-owner of Adirondack
                                                                     Beverages (producer and distributor of soft
                                                                     drinks and sparkling/still waters) (October
                                                                     1993-March 1995). He was a partner of the
                                                                     New England Consulting Group (management
                                                                     consulting firm) (December 1992-September
                                                                     1993). He was managing director of LVMH
                                                                     U.S. Corporation (U.S. subsidiary of the
                                                                     French luxury goods conglomerate, Louis
                                                                     Vuitton Moet Hennessey Corporation)
                                                                     (1987-1991) and chairman of its wine and
                                                                     spirits subsidiary, Schieffelin & Somerset
                                                                     Company (1987-1991). Mr. Armstrong is a
                                                                     director or trustee of 31 investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

E. Garrett Bewkes, Jr.**; 72                  Trustee and          Mr. Bewkes is a director of Paine Webber
                                            Chairman of the          Group Inc. ("PW Group") (holding company of
                                           Board of Trustees         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 also a director of Interstate
                                                                     Bakeries Corporation. Mr. Bewkes is a
                                                                     director or trustee of 34 investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.
</TABLE>
    
 
                                       13
<PAGE>

   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
Richard R. Burt; 51                             Trustee            Mr. Burt is chairman of IEP Advisors Inc.
1275 Pennsylvania Avenue, N.W.                                       (international investments and consulting
Washington, D.C. 20004                                               firm) (since March 1994) and a partner of
                                                                     McKinsey & Company (management consulting
                                                                     firm) (since 1991). He is also a director
                                                                     of Archer-Daniels-Midland Co. (agricultural
                                                                     commodities), Hollinger International Co.
                                                                     (publishing), Homestake Mining Corp.,
                                                                     Powerhouse Technologies Inc. and Wierton
                                                                     Steel Corp. He was the chief negotiator in
                                                                     the Strategic Arms Reduction Talks with the
                                                                     former Soviet Union (1989-1991) and the
                                                                     U.S. Ambassador to the Federal Republic of
                                                                     Germany (1985-1989). Mr. Burt is a director
                                                                     or trustee of 31 investment companies for
                                                                     which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.

Mary C. Farrell**; 48                           Trustee            Ms. Farrell is a managing director, senior
                                                                     investment strategist, and member of the
                                                                     Investment Policy Committee of PaineWeb-
                                                                     ber. Ms. Farrell joined PaineWebber in
                                                                     1982. She is a member of the Financial
                                                                     Women's Association and Women's Economic
                                                                     Roundtable and appears as a regular
                                                                     panelist on Wall $treet Week with Louis
                                                                     Rukeyser. She also serves on the Board of
                                                                     Overseers of New York University's Stern
                                                                     School of Business. Ms. Farrell is a
                                                                     director or trustee of 31 investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

Meyer Feldberg; 56                              Trustee            Mr. Feldberg is Dean and Professor of
Columbia University                                                  Management of the Graduate School of
101 Uris Hall                                                        Business, Columbia University. Prior to
New York, New York 10027                                             1989, he was president of the Illinois In-
                                                                     stitute of Technology. Dean Feldberg is
                                                                     also a director of Primedia Inc., Feder-
                                                                     ated Department Stores Inc., and Revlon,
                                                                     Inc. Dean Feldberg is a director or trustee
                                                                     of 33 investment companies for which
                                                                     Mitchell Hutchins, PaineWebber or their
                                                                     affiliates serve as investment adviser.

George W. Gowen; 69                             Trustee            Mr. Gowen is a partner in the law firm of
666 Third Avenue                                                     Dunnington, Bartholow & Miller. Prior to
New York, New York 10017                                             May 1994, he was a partner in the law firm
                                                                     of Fryer, Ross & Gowen. Mr. Gowen is a
                                                                     director or trustee of 31
</TABLE>
    
 
                                       14
<PAGE>

   

<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.
 
Frederic V. Malek; 61                           Trustee            Mr. Malek is chairman of Thayer Capital
1455 Pennsylvania Avenue, N.W.                                       Partners (merchant bank). From January 1992
Suite 350                                                            to November 1992, he was campaign manager
Washington, D.C. 20004                                               of Bush-Quayle '92. From 1990 to 1992, he
                                                                     was vice chairman, and from 1989 to 1990,
                                                                     he was president of Northwest Airlines
                                                                     Inc., NWA Inc. (holding company of North-
                                                                     west Airlines Inc.) and Wings Holdings Inc.
                                                                     (holding company of NWA Inc.) Prior to
                                                                     1989, he was employed by the Marriott
                                                                     Corporation (hotels, restaurants, airline
                                                                     catering and contract feeding), where he
                                                                     most recently was an executive vice
                                                                     president and president of Marriott Hotels
                                                                     and Resorts. Mr. Malek is also a director
                                                                     of American Management Systems, Inc.
                                                                     (management consulting and computer-related
                                                                     services), Automatic Data Processing, Inc.,
                                                                     CB Commercial Group, Inc. (real estate
                                                                     services), Choice Hotels International
                                                                     (hotel and hotel franchising), FPL Group,
                                                                     Inc. (electric services), Manor Care, Inc.
                                                                     (health care) and Northwest Airlines Inc.
                                                                     Mr. Malek is a director or trustee of 31
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.
 
Carl W. Schafer; 62                             Trustee            Mr. Schafer is president of the Atlantic
66 Witherspoon Street                                                Foundation (charitable foundation sup-
#1100                                                                porting mainly oceanographic exploration
Princeton, N.J. 08542                                                and research). He is a director of Base Ten
                                                                     Systems, Inc. (software), Roadway Ex-
                                                                     press, Inc. (trucking), The Guardian Group
                                                                     of Mutual Funds, the Harding, Loevner
                                                                     Funds, Evans Systems, Inc. (a 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, Mr. Schafer 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
</TABLE>
    
 
                                       15
<PAGE>

   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
                                                                     which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.

Christopher G. Altschul; 32                 Vice President         Mr. Altschul is a first vice president and
                                      (Managed Assets Trust only)    portfolio manager of Mitchell Hutchins.
                                                                     Prior to April 1995, he was an equity an-
                                                                     alyst at Chase Manhattan Bank. Mr. Alt-
                                                                     schul is a vice president of one invest-
                                                                     ment company for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

Lawrence Chinsky; 29                      Vice President and       Mr. Chinsky is an assistant vice president
                                          Assistant Treasurer        and investment monitoring officer of the
                                                                     mutual fund finance department of Mitchell
                                                                     Hutchins. Prior to August 1997, he was a
                                                                     securities compliance examiner with the
                                                                     Office of Compliance, Inspections and
                                                                     Examinations in the New York Regional
                                                                     Office of the United States Securities and
                                                                     Exchange Commission. Mr. Chinsky is vice
                                                                     president and assistant treasurer of 32
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Karen L. Finkel; 40                         Vice President         Mrs. Finkel is a senior vice president and a
                                          (Olympus Fund only)        portfolio manager of Mitchell Hutchins.
                                                                     Mrs. Finkel is a vice president of three
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Ellen R. Harris; 52                         Vice President         Ms. Harris is a managing director and a
                                          (Olympus Fund only)        portfolio manager of Mitchell Hutchins.
                                                                     Ms. Harris is a vice president of two in-
                                                                     vestment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Donald R. Jones; 38                         Vice President         Mr. Jones is a senior vice president and a
                                        (Securities Trust only)      portfolio manager of Mitchell Hutchins.
                                                                     Prior to February 1996, he was a vice
                                                                     president in the asset management group of
                                                                     First Fidelity Bancorporation. Mr. Jones is
                                                                     a vice president of two investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

John J. Lee; 30                           Vice President and       Mr. Lee is a vice president and a manager of
                                          Assistant Treasurer        the mutual fund finance department of
                                                                     Mitchell Hutchins. Prior to September 1997,
                                                                     he was an audit manager in the financial
                                                                     services practice of Ernst &
</TABLE>
    
 
                                       16
<PAGE>

   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
                                                                     Young LLP. Mr. Lee is a vice president and
                                                                     assistant treasurer of 32 investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

Thomas J. Libassi; 39                       Vice President         Mr. Libassi is a senior vice president and
                                        (Securities Trust only)      portfolio manager of Mitchell Hutchins.
                                                                     Prior to May 1994, he was a vice president
                                                                     of Keystone Custodian Funds Inc. with
                                                                     portfolio management responsibility.
                                                                     Mr. Libassi is a vice president of six
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Dennis McCauley; 52                         Vice President         Mr. McCauley is a managing director and chief
                                        (Securities Trust only)      investment officer--fixed income of
                                                                     Mitchell Hutchins. Prior to December 1994,
                                                                     he was director of fixed income in-
                                                                     vestments of IBM Corporation. Mr. Mc-
                                                                     Cauley is a vice president of 22 investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

Ann E. Moran; 41                          Vice President and       Ms. Moran is a vice president and a manager
                                          Assistant Treasurer        of the mutual fund finance department of
                                                                     Mitchell Hutchins. Ms. Moran is a vice
                                                                     president and assistant treasurer of 32 in-
                                                                     vestment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Dianne E. O'Donnell; 46                   Vice President and       Ms. O'Donnell is a senior vice president and
                                               Secretary             deputy general counsel of Mitchell Hutch-
                                                                     ins. Ms. O'Donnell is a vice president and
                                                                     secretary of 31 investment companies and
                                                                     vice president and assistant secretary of
                                                                     one investment company for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Emil Polito; 38                             Vice President         Mr. Polito is a senior vice president and
                                                                     director of operations and control for
                                                                     Mitchell Hutchins. From March 1991 to
                                                                     September 1993, he was director of
                                                                     the mutual funds sales support and ser-
                                                                     vice center for Mitchell Hutchins,
                                                                     PaineWebber. Mr. Polito is also vice
                                                                     president of 32 investment companies for
                                                                     which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.
</TABLE>
    
 
                                       17
<PAGE>

   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
Victoria E. Schonfeld; 47                   Vice President         Ms. Schonfeld is a managing director and
                                                                     general counsel of Mitchell Hutchins. Pri-
                                                                     or to May 1994, she was a partner in the
                                                                     law firm of Arnold & Porter. Ms. Schon-
                                                                     feld is a vice president of 31 investment
                                                                     companies and a vice president and secre-
                                                                     tary of one investment company for which
                                                                     Mitchell Hutchins, PaineWebber or their
                                                                     affiliates serve as investment adviser.

Paul H. Schubert; 35                      Vice President and       Mr. Schubert is a senior vice president and
                                               Treasurer             the director of the mutual fund finance
                                                                     department of Mitchell Hutchins. From
                                                                     August 1992 to August 1994, he was a vice
                                                                     president at BlackRock Financial Manage-
                                                                     ment Inc. Mr. Schubert is a vice president
                                                                     and treasurer of 32 investment companies
                                                                     for which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.

Antony J. Scott; 35                         Vice President         Mr. Scott is a first vice president and
                                      (Managed Assets Trust only)    portfolio manager of Mitchell Hutchins.
                                                                     Prior to May 1996, he was a research
                                                                     analyst at Morgan Stanley. Mr. Scott is a
                                                                     vice president of one investment company
                                                                     for which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.

Nirmal Singh; 42                            Vice President         Mr. Singh is a senior vice president and a
                                        (Securities Trust only)      portfolio manager of Mitchell Hutchins.
                                                                     Prior to September 1993, he was a member of
                                                                     the portfolio management team at Merrill
                                                                     Lynch Asset Management, Inc. Mr. Singh is
                                                                     vice president of four investment companies
                                                                     for which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.

Barney A. Taglialatela; 37                Vice President and       Mr. Taglialatela is a vice president and a
                                          Assistant Treasurer        manager of the mutual fund finance de-
                                                                     partment of Mitchell Hutchins. Prior to
                                                                     February 1995, he was a manager of the
                                                                     mutual fund finance division of Kidder
                                                                     Peabody Asset Management, Inc. Mr.
                                                                     Taglialatela is a vice president and assis-
                                                                     tant treasurer of 32 investment companies
                                                                     for which Mitchell Hutchins, PaineWebber or
                                                                     their affiliates serve as investment
                                                                     adviser.
</TABLE>
    
 
                                       18
<PAGE>

   
<TABLE>
<CAPTION>
                                                                               BUSINESS EXPERIENCE;
       NAME, ADDRESS* AND AGE          POSITION WITH EACH TRUST                 OTHER DIRECTORSHIPS
- ------------------------------------  ---------------------------  ---------------------------------------------
<S>                                   <C>                          <C>
Mark A. Tincher; 43                         Vice President         Mr. Tincher is a managing director and chief
                                                                     investment officer--U.S. equity invest-
                                                                     ments of Mitchell Hutchins. Prior to March
                                                                     1995, he was a vice president and directed
                                                                     the U.S. funds management and equity
                                                                     research areas of Chase Manhattan Private
                                                                     Bank. Mr. Tincher is a vice president of 13
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Craig M. Varrelman; 39                      Vice President         Mr. Varrelman is a senior vice president and
                                        (Securities Trust only)      a portfolio manager of Mitchell Hutchins.
                                                                     Mr. Varrelman is a vice president of four
                                                                     investment companies for which Mitchell
                                                                     Hutchins, PaineWebber or their affiliates
                                                                     serve as investment adviser.

Stuart Waugh; 43                            Vice President         Mr. Waugh is a managing director and a
                                        (Securities Trust only)      portfolio manager of Mitchell Hutchins
                                                                     responsible for global fixed income in-
                                                                     vestments and currency trading. Mr. Waugh
                                                                     is a vice president of five investment
                                                                     companies for which Mitchell Hutchins,
                                                                     PaineWebber or their affiliates serve as
                                                                     investment adviser.

Keith A. Weller; 37                       Vice President and       Mr. Weller is a first vice president and
                                          Assistant Secretary        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 or PaineWebber serves as in-
                                                                     vestment adviser.
</TABLE>
    
 
- ------------------
 * Unless otherwise indicated, the business address of each listed person is
   1285 Avenue of the Americas, New York, New York 10019.
** Mrs. Alexander, Mr. Bewkes and Ms. Farrell are "interested persons" of each
   Trust as defined in the 1940 Act by virtue of their positions with Mitchell
   Hutchins, PaineWebber, and/or PW Group.
 
   
     Olympus Fund and America Fund each pays trustees who are not "interested
persons" of the Trust $1,500 annually for each series; each Trust presently has
one series and thus pays each such trustee $1,500 annually. Managed Assets Trust
pays trustees who are not "interested persons" of the Trust $1,000 annually for
each series; this Trust has only one series and thus pays each such board member
$1,000 annually. Securities Trust pays trustees who are not "interested persons"
of the Trust $1,500 for Small Cap Fund and $1,000 for the Trust's second series
and thus pays each such trustee $2,500 annually. Each Trust also pays $150 per
series for each board meeting and separate meeting of a board committee (other
than committee meetings held on the same day as a board meeting). Each chairman
of the audit and contract review committees of individual funds within the
PaineWebber fund complex receives additional compensation, aggregating $15,000
each from the relevant funds. All Trustees are reimbursed for any expenses
incurred in attending meetings. Trustees and officers own in the aggregate less
than 1% of the outstanding shares of each Fund. Because PaineWebber and Mitchell
Hutchins perform substantially all of the services necessary for the operation
of the
    
 
                                       19
<PAGE>

Trusts and each Fund, the Trusts require no employees. No officer, director or
employee of Mitchell Hutchins or PaineWebber presently receives any compensation
from any Trust for acting as a trustee or officer.
 
   
     The table below includes certain information relating to the compensation
of each Trust's current trustees who held office with that Trust or with other
PaineWebber funds during the period indicated.
    
 
                               COMPENSATION TABLE
 
   
<TABLE>
<CAPTION>
                                       AGGREGATE
                                      COMPENSATION       AGGREGATE      AGGREGATE        AGGREGATE         TOTAL
                                          FROM          COMPENSATION   COMPENSATION    COMPENSATION     COMPENSATION
                                      AMERICA FUND      FROM MANAGED       FROM             FROM          FROM THE
                                      (GROWTH AND       ASSETS TRUST    SECURITIES      OLYMPUS FUND    TRUSTS AND
                                         INCOME           (MID CAP      TRUST (SMALL      (GROWTH         THE FUND
     NAME OF PERSON, POSITION           FUND)(1)          FUND)(4)      CAP FUND)(2)      FUND)(1)       COMPLEX(3)
- -----------------------------------   --------------    ------------    ------------    ------------    ------------
<S>                                   <C>               <C>             <C>             <C>             <C>
Richard Q. Armstrong, Trustee......       $2,400           $2,550          $2,400          $2,400         $ 94,885
Richard R. Burt, Trustee...........       $2,250           $2,400          $2,250          $2,250         $ 87,085
Meyer Feldberg, Trustee............       $3,553           $3,157          $3,369          $3,157         $117,853
George W. Gowen, Trustee...........       $2,400           $2,400          $2,400          $2,250         $101,567
Frederic V. Malek, Trustee.........       $2,400           $2,550          $2,400          $2,400         $ 95,845
Carl W. Schafer, Trustee...........       $2,400           $2,550          $2,400          $2,400         $ 94,885
</TABLE>
    
 
- ------------------
     Only independent members of the board are compensated by the Trusts and
identified above; trustees who are "interested persons," as defined by the 1940
Act, do not receive compensation.
 
   
(1) Represents fees paid to each trustee during the fiscal year ended
    August 31, 1998.
    
   
(2) Represents fees paid to each trustee during the fiscal year ended July 31,
    1998.
    
   
(3) Represents total compensation paid to each trustee during the calendar year
    ended December 31, 1997; no fund within the fund complex has a bonus,
    pension, profit sharing or retirement plan.
    
   
(4) Represents fees paid to each trustee during the twelve months ended
    August 31, 1998.
    
 
                  OWNERSHIP OF GREATER THAN 5% OF FUND SHARES
 
     The following shareholder is shown in Olympus Fund's records as owning more
than 5% of Growth Fund's shares.
 
   
<TABLE>
<CAPTION>
                                             NUMBER AND PERCENTAGE
                                                OF SHARES OWNED
NAME AND ADDRESS*                           AS OF NOVEMBER 1, 1998
- ----------------------------------------   -------------------------
<S>                                        <C>
Northern Trust Company as Trustee for
  the benefit of
  PaineWebber 401(k) Plan...............     966,468.429       5.97%
</TABLE>
    
 
- ------------------
 * The shareholder listed may be contacted c/o Mitchell Hutchins Asset
   Management Inc., 1285 Avenue of the Americas, New York, NY 10019.
 
                                       20

<PAGE>
               INVESTMENT ADVISORY AND DISTRIBUTION ARRANGEMENTS
 
   
     INVESTMENT ADVISORY ARRANGEMENTS.  Mitchell Hutchins acts as the investment
adviser and administrator of each Fund pursuant to separate advisory contracts
(each an "Advisory Contract") with each Trust. Under the Advisory Contracts,
each Fund pays Mitchell Hutchins a fee, computed daily and paid monthly, at the
annual rate specified below. Prior to August 1, 1997, pursuant to service
agreements, PaineWebber provided certain services to the Funds not otherwise
provided by the transfer agent. These agreements were reviewed annually by each
Trust's board. Effective August 1, 1997, PaineWebber provides transfer agency
related services to the Funds pursuant to a delegation of authority from PFPC
Inc. and is compensated for those services by PFPC Inc., not the Funds.
    
 
     Under the terms of the Advisory Contracts, each Fund bears all expenses
incurred in its operation that are not specifically assumed by Mitchell
Hutchins. Expenses borne by each Fund include the following: (1) the cost
(including brokerage commissions) 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 the Fund's shares under federal and state securities laws and
maintenance of such registrations and qualifications; (5) fees and salaries
payable to trustees and officers who are not interested persons (as defined in
the 1940 Act) of the Fund 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, statements of
additional information and supplements thereto, reports and proxy materials for
existing shareholders, and costs of mailing such materials to shareholders;
(14) any extraordinary expenses (including fees and disbursements of counsel)
incurred by the Fund; (15) fees, voluntary assessments and other expenses
incurred in connection with membership in investment company organizations;
(16) costs of mailing and tabulating proxies and costs of meetings of
shareholders, the boards and any committees thereof; (17) the cost of investment
company literature and other publications provided to trustees and officers; and
(18) costs of mailing, stationery and communications equipment.
 
     Under each 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 contracts, 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. Each Advisory Contract terminates
automatically upon assignment and is terminable at any time without penalty by
the applicable 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 a Fund.
 
   
     GROWTH AND INCOME FUND.  Pursuant to the Advisory Contract dated March 1,
1989, between America Fund and Mitchell Hutchins, Growth and Income Fund pays
Mitchell Hutchins a fee at the annual rate of 0.70% of the Fund's average daily
net assets, computed daily and paid monthly. For the fiscal years ended August
31, 1998, August 31, 1997 and August 31, 1996, Growth and Income Fund paid (or
accrued) to Mitchell Hutchins investment advisory and administration fees of
$8,823,952, $5,312,189 and $4,075,174, respectively. Pursuant to the applicable
service agreement, during the fiscal years ended August 31, 1997 and August 31,
1996, Growth and Income Fund paid (or accrued) to PaineWebber service fees of
$191,744, $206,622 respectively.
    
 
   
     MID CAP FUND.  Pursuant to the Advisory Contract dated March 20, 1992
between Managed Assets Trust and Mitchell Hutchins, Mid Cap Fund pays Mitchell
Hutchins a fee, computed daily and paid monthly, at the annual rate of 1.00% of
the Fund's average daily net assets. For the five-month period ended August 31,
1998 and the fiscal years ended March 31, 1998, March 31, 1997 and March 31,
1996, Mid Cap Fund paid (or accrued) to Mitchell Hutchins investment advisory
and administration fees of $964,741, $2,680,122, $2,684,390 and $2,443,715,
respectively. Pursuant to the applicable service agreement PaineWebber earned
    
 
                                       21
<PAGE>

   
(or accrued) $28,077, $89,240 and $93,745, during the fiscal years ended
March 31, 1998, March 31, 1997 and March 31, 1996 respectively.
    
 
   
     Prior to May 1, 1998, Denver Investment Advisors, LLC served as investment
sub-adviser for the Fund pursuant to a separate contract with Mitchell Hutchins
dated March 21, 1995. Under that contract and a substantially identical prior
contract, for the one month period ended May 1, 1998 and the fiscal years ended
March 31, 1998, March 31, 1997 and March 31, 1996, Mitchell Hutchins (not the
Fund) paid Denver Investment Advisors LLC sub-advisory fees in the amount of
$110,392, $1,340,049, $1,342,195 and $1,221,858, respectively.
    
 
   
     SMALL CAP FUND.  Pursuant to the Advisory Contract dated January 28, 1993,
between Securities Trust and Mitchell Hutchins, Small Cap Fund pays Mitchell
Hutchins a fee at the annual rate of 1.00% of the Fund's average daily net
assets, computed daily and paid monthly. For the fiscal years ended July 31,
1998, July 31, 1997, and July 31, 1996, Small Cap Fund paid (or accrued) to
Mitchell Hutchins investment advisory and administration fees of $1,340,576,
$873,636 and $731,472, respectively. Pursuant to the applicable service
agreement during the fiscal years ended July 31, 1997 and July 31, 1996, Small
Cap Fund paid (or accrued) to PaineWebber service fees of $35,040 and $36,944
respectively.
    
 
   
     Royce and Associates ("Royce"), formerly Quest Advisory Corp., served as a
sub-adviser to Small Cap Fund from February 1, 1993 through March 31, 1996,
pursuant to a sub-advisory contract between Royce and Mitchell Hutchins dated
January 28, 1993, under which Mitchell Hutchins (not the Fund) paid or accrued
to Royce Advisory $249,955 during the fiscal year ended July 31, 1996, in
sub-advisory fees.
    
 
   
     GROWTH FUND.  Pursuant to the Advisory Contract dated March 1, 1989,
between Olympus Fund and Mitchell Hutchins, Growth Fund pays Mitchell Hutchins a
fee at the annual rate of 0.75% of the Fund's average daily net assets, computed
daily and paid monthly. For the fiscal years ended August 31, 1998, August 31,
1997 and August 31, 1996, Growth Fund paid (or accrued) to Mitchell Hutchins
investment advisory and administration fees of $2,858,153, $2,934,644 and
$2,985,925, respectively. Pursuant to the applicable service agreement, during
the fiscal years ended August 31, 1997 and August 31, 1996, Growth Fund paid (or
accrued) to PaineWebber service fees of $110,890 and $134,864 respectively.
    
 
   
     ALL FUNDS. For its services as lending agent, PaineWebber received $57,530
and $82,147 in compensation from Growth and Income Fund and Growth Fund,
respectively, for the fiscal year ended August 31, 1998, $25,267 from Small Cap
Fund for the fiscal year ended July 31, 1998 and $8,609 and $2,859, respectively
from Mid Cap Fund for the five months ended August 31, 1998 and the fiscal year
ended March 31, 1998.
    
 
   
     NET ASSETS.  The following table shows the approximate net assets as of
October 31, 1998, sorted by category of investment objective, of the investment
companies for which Mitchell Hutchins serves as adviser or sub-adviser. An
investment company may fall into more than one of the categories below.
    
 
   
<TABLE>
<CAPTION>
                                                   NET ASSETS
        INVESTMENT CATEGORY                         ($ MIL)
        ----------------------------------------   ----------
<S>                                                <C>
        Domestic (excluding Money Market).......   $  7,761.7
        Global..................................      3,627.2
        Equity/Balanced.........................      6,301.2
        Fixed Income (excluding Money Market)...      5,087.7
          Taxable Fixed Income..................      3,496.1
          Tax-Free Fixed Income.................      1,591.6
        Money Market Funds......................     31,335.1
</TABLE>
    
 
     PERSONNEL TRADING POLICIES.  Mitchell Hutchins personnel may invest in
securities for their own accounts pursuant to a code of ethics that describes
the fiduciary duty owed to shareholders of PaineWebber mutual funds and other
Mitchell Hutchins' advisory accounts by all Mitchell Hutchins' directors,
officers and employees, establishes procedures for personal investing and
restricts certain transactions. For example, employee accounts generally must be
maintained at PaineWebber, personal trades in most securities require
pre-clearance and short-term trading and participation in initial public
offerings generally are prohibited. In
 
                                       22
<PAGE>

addition, the code of ethics puts restrictions on the timing of personal
investing in relation to trades by PaineWebber funds and other Mitchell Hutchins
advisory clients.
 
     DISTRIBUTION ARRANGEMENTS.  Mitchell Hutchins acts as the distributor of
each class of shares of each Fund under separate distribution contracts with
each Trust (collectively, "Distribution Contracts") that require Mitchell
Hutchins to use its best efforts, consistent with its other businesses, to sell
shares of each Fund. Shares of each of the Funds are offered continuously. Under
separate exclusive dealer agreements between Mitchell Hutchins and PaineWebber
relating to each class of shares (collectively, "Exclusive Dealer Agreements"),
PaineWebber and its correspondent firms sell the Funds' shares.
 
     Under separate plans of distribution pertaining to the Class A, Class B and
Class C shares adopted by each Trust in the manner prescribed under Rule 12b-1
under the 1940 Act ("Class A Plan," "Class B Plan" and "Class C Plan,"
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 for each class, except that the Class A Plans for Growth and Income Fund
and Growth Fund provide that the service fee paid with respect to shares sold
prior to December 2, 1988 ("Old Shares") is paid at the annual rate of 0.15% of
the Fund's net assets represented by such Old Shares. Shares acquired through
new purchases, reinvestment of dividends and other distributions and exchanges
on/or after December 2, 1988 are not considered "Old Shares" for this purpose.
Under the Class B Plan and the Class C Plan, those Funds also pay 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.
 
     Among other things, each Plan provides that (1) Mitchell Hutchins will
submit to the applicable 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 applicable board, including those trustees who are not
"interested persons" of the relevant Trust 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 relevant
class of the Fund, and (4) while the Plan remains in effect, the selection and
nomination of trustees who are not "interested persons" of a Trust shall be
committed to the discretion of the trustees who are not "interested persons" of
the respective Trust.
 
     In reporting amounts expended under the Plans to the trustees, Mitchell
Hutchins allocates expenses attributable to the sale of each class of each
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.
 
   
     For the fiscal years (or periods) set forth below the Funds paid (or
accrued) the following fees to Mitchell Hutchins under the Plans:
    
 
   
<TABLE>
<CAPTION>
                                             GROWTH AND
                                             INCOME FUND                MID CAP FUND               SMALL CAP FUND      GROWTH FUND
                                             FISCAL YEAR        FIVE MONTH        FISCAL YEAR       FISCAL YEAR        FISCAL YEAR
                                                ENDED          PERIOD ENDED          ENDED             ENDED              ENDED
                                           AUGUST 31, 1998    AUGUST 31, 1998    MARCH 31, 1998    JULY 31, 1998     AUGUST 31, 1998
                                           ---------------    ---------------    --------------    --------------    ---------------
<S>                                        <C>                <C>                <C>               <C>               <C>
Class A.................................     $ 1,500,561         $ 130,218         $  231,601         $113,570         $   527,772
Class B.................................     $ 4,063,846         $ 345,115         $1,478,236         $541,791         $ 1,023,937
Class C.................................     $ 1,378,915         $  98,551         $  269,903         $302,004         $   261,217
</TABLE>
    
 
                                       23
<PAGE>

   
     Mitchell Hutchins estimates that it and its parent corporation,
PaineWebber, incurred the following shareholder service-related and
distribution-related expenses with respect to each Fund during these fiscal
years (or periods):
    
 
                                    CLASS A
 
   
<TABLE>
<CAPTION>
                                                          MID CAP FUND       MID CAP FUND
                                                           FIVE MONTH        FISCAL YEAR
                                           GROWTH AND     PERIOD ENDED          ENDED           SMALL CAP     GROWTH
                                           INCOME FUND    AUGUST 31, 1998    MARCH 31, 1998       FUND         FUND
                                           -----------    ---------------    ---------------    ---------    --------
<S>                                        <C>            <C>                <C>                <C>          <C>
Marketing and advertising...............   $  869,936        $  41,723          $  67,337       $ 86,033     $146,724
Printing of prospectuses and statements
   of additional information to other
   than current shareholders............        3,539            3,727              1,597            240        1,346
Branch network costs allocated and
   interest expense.....................    1,501,826          178,830            359,909        127,400      928,808
Service fees paid to PaineWebber
   investment executives................      570,214           49,483             88,008         43,157      200,554

<CAPTION>
 
                                    CLASS B
 
                                                          MID CAP FUND       MID CAP FUND
                                                           FIVE MONTH        FISCAL YEAR
                                           GROWTH AND     PERIOD ENDED          ENDED          SMALL CAP     GROWTH
                                           INCOME FUND    AUGUST 31, 1998    MARCH 31, 1998      FUND         FUND
                                           -----------    ---------------    --------------    ---------    --------
<S>                                        <C>            <C>                <C>               <C>          <C>
Marketing and advertising...............   $  499,240        $  27,852          $107,737       $102,602     $ 65,570
Amortization of commissions.............    1,181,623          100,306           409,312        154,734      291,301
Printing of prospectuses and statements
   of additional information to other
   than current shareholders............        2,022            2,262             2,247            288          495
Branch network costs allocated and
   interest expense.....................    1,090,830          124,891           599,585        168,851      432,606
Service fees paid to PaineWebber
   investment executives................      386,065           32,786           140,433         51,470       97,273
 
<CAPTION>

                                    CLASS C
 
                                                          MID CAP FUND       MID CAP FUND
                                                           FIVE MONTH        FISCAL YEAR
                                           GROWTH AND     PERIOD ENDED          ENDED           SMALL CAP     GROWTH
                                           INCOME FUND    AUGUST 31, 1998    MARCH 31, 1998       FUND         FUND
                                           -----------    ---------------    ---------------    ---------    --------
<S>                                        <C>            <C>                <C>                <C>          <C>
Marketing and advertising...............   $  187,510        $   7,938          $  19,645       $ 57,180     $ 16,727
Amortization of commissions.............      392,990           28,087             76,923         86,071       74,447
Printing of prospectuses and statements
   of additional information to other
   than current shareholders............          758              666                437            157          138
Branch network costs allocated and
   interest expense.....................      322,674           34,254            105,859         85,916      106,841
Service fees paid to PaineWebber
   investment executives................      130,997            9,362             25,640         28,690       24,816
</TABLE>
    
 
     "Marketing and advertising" includes various internal costs allocated by
Mitchell Hutchins to its efforts at distributing the Funds' shares. These
internal costs encompass office rent, salaries and other overhead expenses of
various departments and areas of operations of Mitchell Hutchins. "Branch
network costs allocated and interest expense" consist of an allocated portion of
the expenses of various PaineWebber departments involved in the distribution of
the Funds' shares, including the PaineWebber retail branch system.
 
                                       24
<PAGE>

   
     In approving each Fund's overall Flexible Pricing(Service Mark) system of 
distribution, each 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 Funds and attracting
new investors and assets to the Funds to the benefit of each Fund and its
shareholders, (2) facilitate distribution of the Fund's shares and (3) maintain
the competitive position of a Fund in relation to other funds that have
implemented or are seeking to implement similar distribution arrangements.
    
 
     In approving the Class A Plan, each 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 service fee would be
attractive to PaineWebber investment executives and correspondent firms,
resulting in greater growth of the Funds than might otherwise be the case,
(3) the advantages to the shareholders of economies of scale resulting from
growth in each Fund's assets and potential continued growth, (4) the services
provided to each 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, each 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 investment executives 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 investment
executives and correspondent firms, resulting in greater growth of each Fund
than might otherwise be the case, (4) the advantages to the shareholders of
economies of scale resulting from growth in each Fund's assets and potential
continued growth, (5) the services provided to a 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 investment executives, 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, each 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 an investor's 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 investment executives 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 investment
executives and correspondent firms, resulting in greater growth to each Fund
than might otherwise be the case, (4) the advantages to the shareholders of
economies of scale resulting from growth in each Fund's assets and potential
continued growth, (5) the services provided to each 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 investment executives without the concomitant receipt by Mitchell
Hutchins of initial sales charges or contingent deferred sales charges upon
redemption, was conditioned upon its expectation of being compensated under the
Class C Plan.
 
     With respect to each Plan, the boards considered 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 boards also considered the
benefits that would accrue to Mitchell Hutchins under each Plan in that Mitchell
Hutchins would receive service, distribution and
 
                                       25
<PAGE>

advisory fees which 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 Funds attained and maintained significant asset levels.
 
   
     Under the Distribution Contracts for the Class A shares and similar prior
distribution contracts, for the fiscal years (or periods) set forth below,
Mitchell Hutchins earned the following approximate amounts of sales charges and
retained the following approximate amounts, net of concessions to PaineWebber as
exclusive dealer.
    
 
   
<TABLE>
<CAPTION>
                                                       FISCAL YEARS
                                           ------------------------------------
                                              1998          1997         1996
                                           ----------    ----------    --------
<S>                                        <C>           <C>           <C>
GROWTH AND INCOME FUND
Earned..................................   $3,377,803    $1,057,894    $369,006
Retained................................   $  200,804    $   28,748    $ 21,741
SMALL CAP FUND
Earned..................................   $  299,265    $   39,599    $ 16,418
Retained................................   $   17,983    $    2,303    $  1,131
GROWTH FUND
Earned..................................   $   77,935    $  113,033    $104,474
Retained................................   $    5,776    $    6,886    $  6,032

<CAPTION>
                                             FIVE MONTH                  FISCAL YEARS
                                            PERIOD ENDED      ----------------------------------
                                           AUGUST 31, 1998      1998         1997         1996
                                           ---------------    --------    ----------    --------
<S>                                        <C>                <C>         <C>           <C>
MID CAP FUND
Earned..................................      $  42,878       $ 79,480    $  124,319    $112,032
Retained................................      $   3,039       $  4,826    $    7,597    $  6,149
</TABLE>
    
 
   
     Mitchell Hutchins earned and retained the following contingent deferred
sales charges paid upon certain redemptions of Class A, Class B and Class C
shares for the last fiscal year (and for the five month period ended August 31,
1998 for Mid Cap Fund):
    
 
   
<TABLE>
<CAPTION>
                                                  GROWTH AND INCOME FUND   SMALL CAP FUND   GROWTH FUND
                                                  ----------------------   --------------   -----------
<S>                                               <C>                      <C>              <C>
Class A........................................          $      0             $      0       $       0
Class B........................................          $420,002             $ 81,893       $ 130,715
Class C........................................          $ 38,256             $ 13,948       $   1,052

<CAPTION>
                                                                           FIVE MONTH PERIOD      FISCAL YEAR ENDED
                                                                         ENDED AUGUST 31, 1998     MARCH 31, 1998
                                                                         ---------------------    -----------------
<S>                                                                      <C>                      <C>
MID CAP FUND
Class A...............................................................         $       0              $       0
Class B...............................................................         $  62,744              $ 180,119
Class C...............................................................         $     873              $       0
</TABLE>
    
 
                                       26
<PAGE>
                             PORTFOLIO TRANSACTIONS
 
   
     Subject to policies established by each board, Mitchell Hutchins is
responsible for the execution of each Fund's portfolio transactions and the
allocation of brokerage transactions. In executing portfolio transactions,
Mitchell Hutchins seeks to obtain the best net results for the Funds, 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 Mitchell Hutchins 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, through which most debt securities and
some equity securities are traded, 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 OTC 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. During the indicated fiscal years ended
August 31 (for Growth and Income Fund and Growth Fund), March 31. (for Mid Cap
Fund) and July 31 (for Small Cap Fund) and for the five month period ended
August 31, 1998 for Mid Cap Fund, the Funds paid the brokerage commissions set
forth below:
    
 
   
<TABLE>
<CAPTION>
                                                                                FISCAL YEARS
                                                                   --------------------------------------
                                                                      1998          1997          1996
                                                                   ----------    ----------    ----------
<S>                                                                <C>           <C>           <C>
Growth and Income Fund..........................................   $1,782,530    $1,139,813    $1,246,465
Growth Fund.....................................................      455,002       665,156       400,232
Small Cap Fund..................................................      163,052       147,913       211,004

<CAPTION>
                                                  FIVE MONTH             FISCAL YEAR ENDED MARCH 31,
                                                 PERIOD ENDED       --------------------------------------
                                                 AUGUST 31, 1998       1998          1997          1996
                                                 ---------------    ----------    ----------    ----------
<S>                                              <C>                <C>           <C>           <C>
Mid Cap Fund..................................     $   673,061      $  388,468    $  330,810    $  329,556
</TABLE>
    
 
   
     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 PaineWebber. Each board has adopted procedures in conformity
with Rule 17e-1 under the 1940 Act to ensure that all brokerage commissions paid
to PaineWebber are reasonable and fair. Specific provisions in the Advisory
Contracts authorize PaineWebber and any of its affiliates that is a member of a
national security 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. During the indicated fiscal years
ended August 31 (for Growth and Income Fund and Growth Fund), March 31, (for Mid
Cap Fund), and July 31 (for Small Cap Fund), and during the five month period
ended August 31, 1998 for Mid Cap Fund, the Funds paid to PaineWebber the
brokerage commissions set forth below:
    
 
   
<TABLE>
<CAPTION>
                                                                                   FISCAL YEAR
                                                                          -----------------------------
                                                                           1998       1997       1996
                                                                          -------    -------    -------
<S>                                                                       <C>        <C>        <C>
Growth and Income Fund.................................................   $51,462    $43,440    $22,470
Growth Fund............................................................    43,380     32,130      2,400
Small Cap Fund.........................................................         0      3,900      3,066

<CAPTION>
                                                           FIVE MONTH               FISCAL YEARS
                                                          PERIOD ENDED       --------------------------
                                                          AUGUST 31, 1998    1998       1997       1996
                                                          ---------------    ----       ----       ----
<S>                                                       <C>                <C>        <C>        <C>
Mid Cap Fund...........................................     $         0      $  0       $  0       $  0
</TABLE>
    
 
   
     The amounts paid by the Funds to PaineWebber in brokerage commissions for
their most recent fiscal years represent (1) for Growth and Income Fund, 2.89%
of the total brokerage commission paid and 0.12% of the total dollar amount of
transactions involving the payment of brokerage commissions and (2) for Growth
Fund, 9.53% of the total brokerage commission paid and 3.37% of the total dollar
amount of transactions involving the payment of brokerage commissions.
    
 
                                       27
<PAGE>

     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 their transactions in futures
contracts, including procedures permitting the use of PaineWebber, are similar
to those in effect with respect to brokerage transactions in securities.
 
   
     Consistent with the interests of each Fund and subject to the review of its
board, Mitchell Hutchins may cause the Fund to purchase and sell portfolio
securities from and to dealers or through brokers who provide Mitchell Hutchins
with research, analysis, advice and similar services. The Fund may pay to those
brokers a higher commission than may be charged by other brokers, provided that
Mitchell Hutchins determines in good faith that such commission is reasonable in
terms either of that particular transaction or of the overall responsibility of
Mitchell Hutchins to the particular 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. During the fiscal years ended
August 31, 1998 (for Growth and Income Fund and Growth Fund) March 31, 1998 (for
Mid Cap Fund) and July 31, 1998 (for Small Cap Fund), and during the five month
period ended August 31, 1998 for Mid Cap Fund, Mitchell Hutchins directed the
portfolio transactions indicated below to brokers chosen because they provide
research and analysis, for which the Funds paid the brokerage commissions
indicated below:
    
 
   
<TABLE>
<CAPTION>
                                                             AMOUNT OF PORTFOLIO    BROKERAGE COMMISSIONS
                                                                 TRANSACTIONS                PAID
                                                             -------------------    ---------------------
<S>                                                          <C>                    <C>
Growth and Income Fund....................................      $ 180,923,115             $ 201,780
Small Cap Fund............................................          2,147,789                 5,880
Growth Fund...............................................         71,769,640                84,992
Mid Cap Fund
  Five month period ended August 31, 1998.................      $  50,417,243             $  67,575
  Fiscal year ended March 31, 1998........................      $ 189,974,320             $ 104,232
</TABLE>
    
 
     For purchases or sales with broker-dealer firms which act as principal,
Mitchell Hutchins seeks best execution. Although Mitchell Hutchins may receive
certain research or execution services in connection with these transactions,
Mitchell Hutchins will not purchase securities at a higher price or sell
securities at a lower price than would otherwise be paid if no weight were
attributed to the services provided by the executing dealer. Moreover, Mitchell
Hutchins will not enter into any explicit soft dollar arrangements relating to
principal transactions and will not receive in principal transactions the types
of services which could be purchased for hard dollars. Mitchell Hutchins may
engage in agency transactions in OTC equity and debt securities in return for
research and execution services. These transactions are entered into only in
compliance with procedures ensuring that the transaction (including commissions)
is at least as favorable as it would have been if effected directly with a
market-maker that did not provide research or execution services. These
procedures include Mitchell Hutchins receiving multiple quotes from dealers
before executing the transactions on an agency basis.
 
     Information and research services furnished by brokers or dealers through
which or with which the Funds effect securities transactions may be used by
Mitchell Hutchins in advising other funds or accounts and, conversely,
information and research services furnished to Mitchell Hutchins by brokers or
dealers in connection with other funds or accounts that either of them advises
may be used in advising the Funds. Information and research received from
brokers or dealers will be in addition to, and not in lieu of, the services
required to be performed by Mitchell Hutchins under the Advisory Contracts.
 
     Investment decisions for the Funds and for other investment accounts
managed by Mitchell Hutchins are made independently of each other in light of
differing considerations for the various accounts. However, the same investment
decision may occasionally be made for a Fund and one or more of such accounts.
In such cases, simultaneous transactions are inevitable. Purchases or sales are
then averaged as to price and allocated between that Fund and such other
account(s) as to amount according to a formula deemed equitable to the Fund and
such account(s). While in some cases this practice could have a detrimental
effect upon the price or value of the security as far as the Funds are
concerned, or upon their ability to complete their entire order, in other cases
it is believed that coordination and the ability to participate in volume
transactions will be beneficial to 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
 
                                       28
<PAGE>

to Rule 10f-3 under the 1940 Act. Among other things, these procedures 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.  The Funds' annual portfolio turnover rates may vary
greatly from year to year, but they will not be a limiting factor when
management deems portfolio changes appropriate. The portfolio turnover rate is
calculated by dividing the lesser of each 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.
 
   
<TABLE>
<CAPTION>
                                                     PORTFOLIO
                                                     TURNOVER RATE
                                                     -------------
<S>                                                  <C>
GROWTH AND INCOME FUND
Fiscal Year Ended August 31, 1998.................         62%
Fiscal Year Ended August 31, 1997.................         70%

MID CAP FUND
Five Month Period Ended August 31, 1998...........         80%
Fiscal Year Ended March 31, 1998..................         64%
Fiscal Year Ended March 31, 1997..................         56%

SMALL CAP FUND
Fiscal Year Ended July 31, 1998...................         45%
Fiscal Year Ended July 31, 1997...................         54%

GROWTH FUND
Fiscal Year Ended August 31, 1998.................         52%
Fiscal Year Ended August 31, 1997.................         86%
</TABLE>
    
 
           REDUCED SALES CHARGES, ADDITIONAL EXCHANGE AND REDEMPTION
                         INFORMATION AND OTHER SERVICES
 
     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 table 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");
 
          (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 such 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
 
                                       29
<PAGE>

   
          (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.
 
     WAIVERS OF SALES CHARGES--CLASS B SHARES.  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 individual 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.
 
     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. This exchange
privilege is available only in those jurisdictions where the sale of PaineWebber
fund shares to be acquired through such exchange may be legally made.
Shareholders will receive at least 60 days' notice of any termination or
material modification of the exchange offer, except no notice need be given of
an amendment whose only material effect is to reduce the exchange fee and no
notice need be given if, under extraordinary circumstances, either redemptions
are suspended under the circumstances described below or a Fund temporarily
delays or ceases the sales of its shares because it is unable to invest amounts
effectively in accordance with the Fund's investment objective, policies and
restrictions.
 
     If conditions exist that make cash payments undesirable, the Funds reserve
the right to honor any request for redemption by making payment in whole or in
part in securities chosen by the Funds and valued in the same way as they would
be valued for purposes of computing the Funds' 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 Trust has
elected, however, to be governed by Rule 18f-1 under the 1940 Act, under which a
Fund 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." 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 the 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.
    
 
     AUTOMATIC INVESTMENT PLAN.  Participation in the Automatic Investment Plan
enables an investor to use the technique of "dollar cost averaging." When the
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
                                       30
<PAGE>

   
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.  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 $5,000 for
Class A and Class C shareholders or $20,000 for Class B shareholders. Purchases
of additional Fund shares concurrent with withdrawals are ordinarily
disadvantageous to shareholders because of tax liabilities and, for Class A
shares, initial sales charges. On or about the 20th of each month for monthly,
quarterly, semiannual or annual plans, PaineWebber will arrange for redemption
by a Fund of sufficient Fund shares to provide the withdrawal payment specified
by participants in the Fund's systematic withdrawal plan. The payment generally
is mailed approximately five Business Days (defined under "Valuation of Shares")
after the redemption date. Withdrawal payments should not be considered
dividends, but redemption proceeds, with the tax consequences described under
"Dividends & Taxes" in the Prospectus. If periodic withdrawals continually
exceed reinvested dividends, 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. ("Transfer Agent"). 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 the Transfer Agent. Shareholders may request the
forms needed to establish a systematic withdrawal plan from their PaineWebber
investment executives, correspondent firms or the Transfer Agent at
1-800-647-1568.
    
 
     REINSTATEMENT PRIVILEGE--CLASS A SHARES.  As described in the Prospectus,
shareholders who have redeemed their Class A shares may reinstate their account
in the Funds without a sales charge. Shareholders may exercise the reinstatement
privilege 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; however, a loss arising out of a
redemption will not be deductible to the extent the reinstatement privilege is
exercised within 30 days after redemption, and 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 adjusted 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 "Dividends & Taxes" in the
Prospectus.
 
PAINEWEBBER RMA RESOURCE ACCUMULATION PLAN(SERVICE MARK);
PAINEWEBBER RESOURCE MANAGEMENT ACCOUNT(REGISTERED)(RMA)(REGISTERED)
 
     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
 
                                       31
<PAGE>

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 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 preliminary 9-month and 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 expanded account protection to $100 million in the event of the
       liquidation of PaineWebber. This protection does not apply to shares of
       the RMA money market funds or the PW Funds because those shares are held
       at the transfer agent 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.
 
                                       32
<PAGE>

                          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 the two classes,
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 such Class B shares occurs. For the purpose of calculating
the holding period required for conversion of Class B shares, the date of
initial issuance shall mean (i) the date on which such Class B shares were
issued, or (ii) 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 availability of 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 dividends" under the Internal Revenue Code and the conversion of
shares will 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 the higher ongoing expenses of the Class B shares beyond six years
from the date of purchase. Mitchell Hutchins has no reason to believe that this
condition for the availability of the conversion feature will not be met.
 
                              VALUATION OF SHARES
 
   
     The Funds determine their net asset values per share separately for each
class of shares, normally as of the close of regular trading on the NYSE
(usually 4:00 p.m., Eastern time) 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 U.S. stock exchanges are valued at the last
sale price prior to valuation 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 OTC market and listed on the Nasdaq Stock Market
("Nasdaq") are valued at the last trade price on Nasdaq prior to valuation;
other OTC securities are valued at the last bid price available prior to
valuation (other than short-term investments that mature in 60 days or less,
which are valued as described further below). Securities and assets for which
market quotations are not readily available are valued at fair value as
determined in good faith by or under the direction of each board. It should be
recognized that judgment often plays a greater role in valuing thinly traded
securities and lower rated securities than is the case with respect to
securities for which a broader range of dealer quotations and last-sale
information is available. 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.
 
                                       33



<PAGE>

     TOTAL RETURN CALCULATIONS.  Average annual total return quotes
("Standardized Return") used in each Fund's Performance Advertisements are
calculated according to the following formula:
 
<TABLE>
<S>                      <C>
                  n
            P(1 + T)  =  ERV
      where:      P   =  a hypothetical initial payment of $1,000 to purchase shares of a specified class
                  T   =  average annual total return of shares of that class
                  n   =  number of years
                ERV   =  ending redeemable value of a hypothetical $1,000 payment at the beginning of that period.
</TABLE>
 
     Under the foregoing formula, the time periods used in Performance
Advertisements will be based on rolling calendar quarters, updated to the last
day of the most recent quarter prior to submission of the advertisement for
publication. Total return, or "T" in the formula above, is computed by finding
the average annual change in the value of an initial $1,000 investment over the
period. In calculating the ending redeemable value, for Class A shares, the
maximum 4.5% sales charge is deducted from the initial $1,000 payment and, for
Class B and Class C shares, the applicable contingent deferred sales charge
imposed on a redemption of Class B or Class C shares held for the period is
deducted. All dividends and other distributions are assumed to have been
reinvested at net asset value.
 
     The Funds also may refer in Performance Advertisements to total return
performance data that are not calculated according to the formula set forth
above ("Non-Standardized Return"). The Funds calculate Non-Standardized Return
for specified periods of time by assuming an investment of $1,000 in Fund shares
and assuming the reinvestment of all dividends 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.
 
     The following table shows performance information for each classs of shares
of the Funds for the periods indicated. All returns for periods of more than one
year are expressed as an average return.
 
                             GROWTH AND INCOME FUND
 
   
<TABLE>
<CAPTION>
                                           CLASS A     CLASS B     CLASS C     CLASS Y
                                           -------     -------     -------     -------
<S>                                        <C>         <C>        <C>        <C>
Year ended August 31, 1998:
  Standardized Return*..................    (7.85)%     (8.67)%     (5.11)%     (3.24)%
  Non-Standardized Return...............    (3.51)%     (4.28)%     (4.23)%     (3.24)%
Five years ended August 31, 1998:
  Standardized Return*..................    12.63%      12.54%      12.81%      13.98%
  Non-Standardized Return...............    13.67%      12.79%      12.81%      13.98%
Ten years ended August 31, 1998
  Standardized Return*..................    12.22%        NA          NA          NA
  Non-Standardized Return...............    12.74%        NA          NA          NA
Inception** to August 31, 1998:
  Standardized Return*..................    12.19%      11.25%      11.18%      10.80%
  Non-Standardized Return...............    12.54%      11.25%      11.18%      10.80%

<CAPTION>
                                  MID CAP FUND

                                           CLASS A     CLASS B     CLASS C     CLASS Y
                                           -------     -------     -------     -------
<S>                                        <C>         <C>         <C>         <C>
One year ended August 31, 1998:
  Standardized Return*..................   (23.88)%    (23.20)%    (21.33)%         NA
  Non-Standardized Return...............   (20.28)%    (20.91)%    (20.89)%         NA
Five years ended August 31, 1998:
  Standardized Return*..................     7.21%      7.18%        7.38%          NA
  Non-Standardized Return*..............     8.21%      7.39%        7.38%          NA
Inception* to August 31, 1998:
  Standardized Return*..................     8.55%      8.50%       10.14%      (26.82)%
  Non-Standardized Return...............     9.33%      8.50%       10.14%      (26.82)%
</TABLE>
    
 
                                       34
<PAGE>

   
                                 SMALL CAP FUND
    
 
   
<TABLE>
<CAPTION>
                                           CLASS A     CLASS B     CLASS C     CLASS Y
                                           -------     -------     -------     -------
<S>                                        <C>         <C>         <C>         <C>
One year ended July 31, 1998:
  Standardized Return*..................     3.58%       2.69%       6.63%       8.74%
  Non-Standardized Return...............     8.45%       7.60%       7.61%       8.74%
Five years ended July 31, 1998:
  Standardized*.........................    11.71%      11.64%      11.88%         NA
  Non-Standardized......................    12.74%      11.90%      11.88%         NA
Inception** to July 31, 1998:
  Standardized Return*..................    11.05%      11.03%      11.12%      21.58%
  Non-Standardized Return...............    11.98%      11.14%      11.12%      21.58%
 
<CAPTION>

                                  GROWTH FUND

                                           CLASS A     CLASS B     CLASS C     CLASS Y
                                           -------     -------     -------     -------
<S>                                        <C>         <C>         <C>       <C>
Fiscal year ended August 31, 1998:
  Standardized Return*..................    (1.27)%     (1.21)%      1.83%      3.61%
  Non-Standardized Return...............     3.37%       2.55%       2.59%      3.61%
Five years ended August 31, 1998:
  Standardized Return*..................     9.05%       8.94%       9.21%     10.37%
  Non-Standardized Return*..............    10.06%       9.20%       9.21%     10.37%
Ten years ended August 31, 1998:
  Standardized Return*..................    13.23%        NA          NA          NA
  Non-Standardized Return*..............    13.75%        NA          NA          NA
Inception** to August 31, 1998:
  Standardized Return*..................    13.02%      11.41%      11.17%     11.31%
  Non-Standardized Return...............    13.41%      11.41%      11.17%     11.31%
</TABLE>
    
 
- ------------------
   
 * All Standardized Return figures for Class A shares reflect deduction of the
   current maximum sales charge of 4.5%. All Standardized Return figures for
   Class B and Class C shares reflect deduction of the applicable contingent
   deferred sales charges imposed on a redemption of shares held for the period.
   Class Y shares do not impose an initial or contingent deferred sales charge;
   therefore, Non-Standardized Return is identical to Standardized Return.
    
 
   
** The inception date for each class of shares is as follows:
    
 
   
<TABLE>
<CAPTION>
                                                             CLASS A     CLASS B     CLASS C     CLASS Y
                                                             --------    --------    --------    --------
<S>                                                          <C>         <C>         <C>         <C>
Growth and Income Fund....................................   12/20/83    07/01/91    07/02/92    02/12/92
Mid Cap Fund..............................................   04/07/92    04/07/92    07/02/92    03/17/98
Small Cap Fund............................................   02/01/93    02/01/93    02/01/93    07/26/96
Growth Fund...............................................   03/18/85    07/01/91    07/02/92    08/26/91
</TABLE>
    
 
                                       35
<PAGE>

   
     OTHER INFORMATION.  In Performance Advertisements, the Funds may compare
their Standardized Return and/or their Non-Standardized Return with data
published by Lipper Analytical Services, Inc. ("Lipper"), CDA Investment
Technologies, Inc. ("CDA"), Wiesenberger Investment Companies Service
("Wiesenberger"), Investment Company Data, Inc. ("ICD") or Morningstar Mutual
Funds ("Morningstar"), with the performance of recognized stock and other
indices, including the Standard & Poor's 500 Composite Stock Price 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, the Nasdaq Composite Index, the
Russell 2000 Index, the Russell 1000 Index (including Value and Growth
sub-indexes), the Wilshire 5000 Index, Standard & Poor's Mid Cap Financials
Index, Standard & Poor's Super Composite Financials Index, Standard & Poor's
Financial 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, SMART
MONEY, MUTUAL FUNDS, 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 a Fund investment are reinvested in
additional Fund shares, any future income or capital appreciation of a 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 a 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(Registered) 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 value will fluctuate. The debt
securities held by the Funds generally have longer maturities than most CDs and
may reflect interest rate fluctuations for longer term securities. An investment
in any Fund involves greater risks than an investment in either a money market
fund or a CD.
 
     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.
 
                                       36
<PAGE>

          U.S. 30 Day TBill TR, $142,496*
             U.S. Inflation, $90,092*

(*Figures are too small to be charted here)

            S&P 500 TR      SMALL CAP    U.S. LT Gvt TR
1925          10,000          10,000          10,000
1926          11,162          10,028          10,777
1927          15,347          12,243          11,739
1928          22,040          17,103          11,751
1929          20,185           8,319          12,153
1930          15,159           5,146          12,719
1931           8,590           2,586          12,044
1932           7,886           2,446          14,073
1933          12,144           5,941          14,062
1934          11,969           7,380          15,472
1935          17,674          10,346          16,243
1936          23,669          17,051          17,464
1937          15,379           7,160          17,504
1938          20,165           9,508          18,473
1939          20,002           9,541          19,570
1940          18,117           9,049          20,761
1941          16,017           8,235          20,955
1942          19,275          11,900          21,629
1943          24,267          22,417          22,080
1944          29,060          34,459          22,702
1945          39,649          59,825          25,139
1946          36,449          52,870          25,113
1947          38,529          53,354          24,454
1948          40,649          52,227          25,285
1949          48,287          62,541          26,916
1950          63,601          86,774          26,932
1951          78,875          93,546          25,873
1952          93,363          96,377          26,173
1953          92,439          90,125          27,125
1954         141,084         144,725          29,075
1955         185,614         174,308          28,699
1956         197,783         181,774          27,096
1957         176,457         155,289          29,117
1958         252,975         256,051          27,342
1959         283,219         298,039          26,725
1960         284,549         288,230          30,407
1961         361,060         390,716          30,703
1962         329,545         335,401          32,818
1963         404,685         414,440          33,216
1964         471,388         511,927          34,381
1965         530,081         725,674          34,625
1966         476,737         674,791          35,889
1967         591,038       1,238,704          32,594
1968         656,415       1,684,285          32,509
1969         600,590       1,262,332          30,860
1970         624,653       1,042,259          34,596
1971         714,058       1,214,228          39,173
1972         849,559       1,268,069          41,400
1973         725,003         876,179          40,942
1974         533,110         701,424          42,725
1975         731,443       1,071,887          46,653
1976         905,842       1,686,909          54,470
1977         840,766       2,114,997          54,095
1978         895,922       2,611,199          53,458
1979       1,061,126       3,746,139          52,799
1980       1,405,137       5,239,922          50,715
1981       1,336,161       5,967,169          51,657
1982       1,622,226       7,638,290          72,507
1983       1,987,451      10,668,278          72,979
1984       2,111,991       9,956,805          84,274
1985       2,791,166      12,412,341         110,371
1986       3,306,709      13,262,748         137,446
1987       3,479,675      12,029,656         133,716
1988       4,064,583      14,781,351         146,650
1989       5,344,555      16,285,901         173,215
1990       5,174,990      12,774,487         183,924
1991       6,755,922      18,476,288         219,420
1992       7,274,115      22,790,386         237,092
1993       8,000,785      27,571,472         280,339
1994       8,105,379      28,427,732         258,556
1995      11,139,184      38,223,980         340,436
1996      13,709,459      44,959,933         337,265
1997      18,272,762      55,199,693         390,736


   
     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. Year-to-year fluctuations in certain markets have
been significant and negative returns have been experienced in certain markets
from time to time. Small cap stocks are represented by an index of the ninth and
tenth decile of the NYSE plus stocks listed on the American Stock Exchange
(AMEX) and OTC with the same or less capitalization as the upper bound of the
NYSE ninth decile. Common 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 indices are
unmanaged and are not available for investment.
    

- ------------------
   
Source: Stocks, Bonds, Bills and Inflation 1998 Yearbook(Trademark) Ibbotson
        Assoc., Chi., (annual updates work by Roger C. Ibbotson & Rex A
        Sinquefield).
    
 
   
     Over time, small cap and large cap stocks have outperformed all other
investments by a wide margin, offering a solid hedge against inflation. From
1926 to 1997, stocks beat all other traditional asset classes.
    
 
                                     TAXES
 
   
     To continue to qualify for treatment as a regulated investment company
("RIC") under the Internal Revenue Code, 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. For each Fund, these 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
    
 
                                       37
<PAGE>

   

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 the Fund's taxable
year, at least 50% of the value of its total assets must be represented by cash
and cash items, U.S. government securities, securities of other RICs and other
securities, with these other securities 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 the Fund's taxable year, not
more than 25% of the value of its total assets may be invested in securities
(other than U.S. government securities or the securities of other RICs) of any
one issuer. If a Fund failed to qualify for treatment as a RIC for any taxable
year, it would be taxed as an ordinary corporation on its taxable income for
that year (even if that income was distributed to its shareholders) and all
distributions out of its earnings and profits would be taxable to its
shareholders as dividends (that is, ordinary income).
    
 
     Dividends and other distributions declared by a Fund in October, November
or December of any year and payable to shareholders of record on a date in any
of those months will be deemed to have been paid by the Fund and received by the
shareholders on December 31 of that year if the distributions are paid by the
Fund during the following January. Accordingly, those distributions will be
taxed to shareholders for the year in which that December 31 falls.
 
     A portion of the dividends from each Fund's investment company taxable
income (whether paid in cash or 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
alternative minimum tax.
 
     If shares of a Fund 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 on those shares.
Investors also should be aware that if shares are purchased shortly before the
record date for any 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.
 
     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 that year and capital gain net
income for the one-year period ending on October 31 of that year, plus certain
other amounts.
 
   
     Each Fund may invest in the stock of "passive foreign investment companies"
("PFICs") if such stock is a permissible investment. A PFIC is a foreign
corporation--other than a "controlled foreign corporation" (i.e., a foreign
corporation in which, on any day during its taxable year, more than 50% of the
total voting power of all voting stock therein or the total value of all stock
therein is owned, directly, indirectly, or constructively, by "U.S.
shareholders," defined as U.S. persons that individually own, directly,
indirectly, or constructively, at least 10% of that voting power) as to which a
Fund is a shareholder--that, in general, meets either of the following tests:
(1) at least 75% of its gross income is passive or (2) an average of at least
50% of its assets produce, or are held for the production of, passive income.
Under certain circumstances, a Fund will be subject to federal income tax on a
portion of any "excess distribution" received on the stock of a PFIC or of any
gain from disposition of that stock (collectively "PFIC income"), plus interest
thereon, even if the Fund distributes the PFIC income as a taxable dividend to
its shareholders. The balance of the PFIC income will be included in the Fund's
investment company taxable income and, accordingly, will not be taxable to it to
the extent it distributes that income to its shareholders.
    
 
   
     If a Fund invests in a PFIC and elects to treat the PFIC as a "qualified
electing fund" ("QEF"), then in lieu of the foregoing tax and interest
obligation, the Fund would be required to include in income each year its pro
rata share of the QEF's annual ordinary earnings and net capital gain (the
excess of net long-term capital gain over net short-term capital loss)--which
probably would have to be distributed by the Fund to satisfy the Distribution
Requirement and avoid imposition of the Excise Tax--even if those earnings and
gain were not distributed to the Fund by the QEF. In most instances it will be
very difficult, if not impossible, to make this election because of certain
requirements thereof.
    
 
                                       38
<PAGE>

   
     Each Fund may elect to "mark to market" its stock in any PFIC.
"Marking-to-market," in this context, means including in ordinary income each
taxable year the excess, if any, of the fair market value of a PFIC's stock over
a Fund's adjusted basis therein as of the end of that year. Pursuant to the
election, a Fund also would be allowed to deduct (as an ordinary, not capital,
loss) the excess, if any, of its adjusted basis in PFIC stock over the fair
market value thereof as of the taxable year-end, but only to the extent of any
net mark-to-market gains with respect to that stock included by the Fund for
prior taxable years. A Fund's adjusted basis in each PFIC's stock with respect
to which it makes this election will be adjusted to reflect the amounts of
income included and deductions taken thereunder (and under regulations proposed
in 1992 that provided a similar election with respect to the stock of certain
PFICs).
    
 
   
     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 a Fund realizes in connection
therewith. Gains from options and futures derived by a Fund with respect to its
business of investing in securities will qualify as permissible income under the
Income Requirement.
    
 
   
     If a Fund has an "appreciated financial position"--generally, an interest
(including an interest through an option, futures contract 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 same or substantially
similar property, 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 a Fund or a related
person with respect to the same or substantially similar property. In addition,
if the appreciated financial postion is itself a short sale or such a contract,
acquisition of the underlying property or substantially similar property will be
deemed a constructive sale. The foregoing will not apply, however, to any
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 the
Fund's risk of loss with respect to that position reduced by reason of certain
specified transactions with respect to substantially similar 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).
    
 
                               OTHER INFORMATION
 
   
     Prior to April 3, 1995, Growth and Income Fund was known as "PaineWebber
Dividend Growth Fund." Prior to May 1, 1998, Mid Cap Fund was known as
"PaineWebber Capital Appreciation Fund." Prior to July 26, 1996, Small Cap Fund
was known as "PaineWebber Small Cap Value Fund." On July 26, 1996, Small Cap
Fund was combined in a tax-free reorganization with PaineWebber Small Cap Growth
Fund, a series of PaineWebber Investment Trust III. As a result of the
reorganization, each shareholder of PaineWebber Small Cap Growth Fund became a
shareholder of Small Cap Fund. Prior to November 10, 1995, each Fund's Class C
shares were known as "Class D" shares. Prior to November 10, 1995, the Class Y
shares of Growth and Income Fund and Growth Fund were known as Class C shares.
    
 
     Each Trust is an entity of the type commonly known as a "Massachusetts
business trust." Under Massachusetts law, shareholders of a Fund could, under
certain circumstances, be held personally liable for the obligations of the
applicable Trust or Fund. However, each Declaration of Trust disclaims
shareholder liability for acts or obligations of the Trust or the Fund and
requires that notice of such disclaimer be given in each note, bond, contract,
instrument, certificate or undertaking made or issued by the trustees or by any
officers or officer by or on behalf of the Trust or Fund, the trustees or any of
them in connection with the Trust. Each Declaration of Trust provides for
indemnification from a Fund's property for all losses and expenses of any
shareholder held personally liable for the obligations of that Fund. Thus, the
risk of a shareholder's incurring financial loss on account of shareholder
liability is limited to circumstances in which a Fund itself would be unable to
meet its obligations, a possibility that 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, the shareholder paying such
liability will be entitled to reimbursement from the general assets
 
                                       39

<PAGE>

of that 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.
 
   
     CLASS-SPECIFIC EXPENSES.  Each Fund may determine to allocate certain of
its expenses (in addition to service and distribution fees) to the specific
classes of its 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 in order 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.
    
 
     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 Growth and Income Fund, Mid Cap Fund and
Growth Fund. PricewaterhouseCoopers LLP, 1177 Avenue of the Americas, New York,
New York 10036, serves as independent accountants for Small Cap Fund.
    
 
                              FINANCIAL STATEMENTS
 
     Each Fund's Annual Report to Shareholders for its last fiscal year is a
separate document supplied with this Statement of Additional Information, and
the financial statements, accompanying notes and report of independent auditors
appearing therein are incorporated herein by this reference.
 
                                       40

<PAGE>



                      [This page intentionally left blank]

<PAGE>

                                    APPENDIX
 
DESCRIPTION OF MOODY'S CORPORATE BOND RATINGS
 
     AAA.  Bonds which are rated Aaa are judged to be of the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt edge." Interest payments are protected by a large or by an exceptionally
stable margin and principal is secure. While the various protective elements are
likely to change, such changes as can be visualized are most unlikely to impair
the fundamentally strong position of such issues; AA. Bonds which are rated Aa
are judged to be of high quality by all standards. Together with the Aaa group
they comprise what are generally known as high grade bonds. They are rated lower
than the best bonds because margins of protection may not be as large as in Aaa
securities or fluctuation of protective elements may be of greater amplitude or
there may be other elements present which make the long term risks appear
somewhat larger than in Aaa securities; A. Bonds which are rated A possess many
favorable investment attributes and are to be considered as upper medium grade
obligations. Factors giving security to principal and interest are considered
adequate but elements may be present which suggest a susceptibility to
impairment sometime in the future; BAA. Bonds which are rated Baa are considered
as medium grade obligations, i.e., they are neither highly protected nor poorly
secured. Interest payments and principal security appear adequate for the
present but certain protective elements may be lacking or may be
characteristically unreliable over any great length of time. Such bonds lack
outstanding investment characteristics and in fact have speculative
characteristics as well; BA. Bonds which are rated Ba are judged to have
speculative elements; their future cannot be considered as well assured. Often
the protection of interest and principal payments may be very moderate and
thereby not well safeguarded during both good and bad times over the future.
Uncertainty of position characterizes bonds in this class; B. Bonds which are
rated B generally lack characteristics of the desirable investment. Assurance of
interest and principal payments or of maintenance of other terms of the contract
over any long period of time may be small; CAA. Bonds which are rated Caa are of
poor standing. Such issues may be in default or there may be present elements of
danger with respect to principal or interest; CA. Bonds which are rated Ca
represent obligations which are speculative in a high degree. Such issues are
often in default or have other marked shortcomings; C. Bonds which are rated C
are the lowest rated class of bonds and issues so rated can be regarded as
having extremely poor prospects of ever attaining any real investment standing.
 
     Note: Moody's apply numerical modifiers, 1, 2 and 3 in each generic rating
classification from "AA" through "B" in its corporate bond rating system. The
modifier 1 indicates that the security ranks in the higher end of its generic
rating category, the modifier 2 indicates a mid-range ranking, and the modifier
3 indicates that the issue ranks in the lower end of its generic rating
category.
 
DESCRIPTION OF S&P CORPORATE DEBT RATINGS
 
     AAA. An obligation rated AAA has the highest rating assigned by S&P. The
obligor's capacity to meet its financial commitment on the obligation is
extremely strong; AA. An obligation rated AA differs from the higher rated
issues only in small degree; A. An obligation rated A is somewhat more
susceptible to the adverse effects of changes in circumstances and economic
conditions than obligations in higher rated categories. However, the obligor's
capacity to meet its financial commitment on the obligation is still strong;
BBB. An obligation rated BBB exhibits adequate protection parameters. However,
adverse economic conditions or changing circumstances are more likely to lead to
a weakened capacity of the obligor to meet its financial commitment on the
obligation; BB, B, CCC, CC, C. Obligations rated BB, B, CCC, CC and C are
regarded as having significant speculative characteristics. BB indicates the
least degree of speculation and C the highest. While such debt will likely have
some quality and protective characteristics, these may be outweighed by large
uncertainties or major exposures to adverse conditions; BB. An obligation rated
BB is less vulnerable to nonpayment than other speculative issues. However, it
faces major ongoing uncertainties or exposure to adverse business, financial, or
economic conditions which could lead to the obligor's inadequate capacity to
meet its financial commitment on the obligation; BB. An obligation rated BB is
less vulnerable to nonpayment than other speculative issues. However, it faces
major ongoing uncertainties or exposure to adverse business, financial, or
economic conditions which could lead to the obligor's inadequate capacity to
meet its financial commitment on the obligation; B. An obligation rated B is
more vulnerable to nonpayment than obligations rated BB, but the obligor
currently has the capacity to meet its financial commitment on the obligation.
Adverse business, financial, or economic conditions will likely impair the
obligor's capacity or willingness to meet its
 
                                      A-1

<PAGE>

financial commitment on the obligation; CCC. An obligation rated CCC is
currently vulnerable to nonpayment and is dependent upon favorable business,
financial and economic conditions for the obligor to meet its financial
commitments on the obligation. In the event of adverse business, financial, or
economic conditions, the obligor is not likely to have the capacity to meet its
financial commitment on the obligation; CC. An obligation rated CC is currently
highly vulnerable to nonpayment; C. The C rating may be used to cover a
situation where a bankruptcy petition has been filed or similar action has been
taken, but payments on this obligation are being continued; D. An obligation
rated D is in payment default. The D rating category is used when payments on an
obligation are not made on the date due even if the applicable grace period has
not expired, unless S&P believes that such payments will be made during such
grace period. The D rating also will be used upon the filing of a bankruptcy
petition or the taking of a similar action if payments on an obligation are
jeopardized.
 
     Plus (+) or Minus (-): The ratings from "AA" to "CCC" may be modified by
the addition of a plus or minus sign to show relative standing within the major
rating categories.
 
                                      A-2
<PAGE>




                      [This page intentionally left blank]
<PAGE>




                      [This page intentionally left blank]

<PAGE>

NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THE PROSPECTUS OR IN THIS STATEMENT OF
ADDITIONAL INFORMATION IN CONNECTION WITH THE OFFERING MADE BY THE PROSPECTUS
AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED
UPON AS HAVING BEEN AUTHORIZED BY THE FUNDS OR THEIR DISTRIBUTOR. THE PROSPECTUS
AND THIS STATEMENT OF ADDITIONAL INFORMATION DO NOT CONSTITUTE AN OFFERING BY
ANY FUND OR BY THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY
NOT LAWFULLY BE MADE.

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

                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                  PAGE
                                                  ----
<S>                                               <C>
Statement of Additional Information............      1
Investment Policies and Restrictions...........      1
Strategies Using Derivative Instruments........      7
Trustees and Officers; Principal Holders of
  Securities...................................     13
Investment Advisory and Distribution
  Arrangements.................................     21
Portfolio Transactions.........................     27
Reduced Sales Charges, Additional Exchange and
  Redemption Information and Other Services....     29
Conversion of Class B Shares...................     33
Valuation of Shares............................     33
Performance Information........................     33
Taxes..........................................     37
Other Information..............................     39
Financial Statements...........................     40
Appendix.......................................    A-1
</TABLE>
    
 
   
(Copyright)
    

       
   
1998 PaineWebber Incorporated
    
 
                                                                     PaineWebber
                                                          Growth and Income Fund
   
                                                                     PaineWebber
                                                                    Mid Cap Fund
    
   
                                                                     PaineWebber
                                                                  Small Cap Fund
    
                                                                     PaineWebber
                                                                     Growth Fund
        
- --------------------------------------------------------------------------------
                                             Statement of Additional Information
   
                                                               November 30, 1998
    
- --------------------------------------------------------------------------------


                                                                     PAINEWEBBER

<PAGE>

                            PART C. OTHER INFORMATION
   
<TABLE>
<CAPTION>

         Item 23.  Exhibits
 <S>              <C>
         (1)      (a) Amended and Restated Declaration of Trust (1)

                  (b) Amendment effective April 8, 1998 to Declaration of Trust (2)

         (2)      Restated By-Laws (1)

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

         (4)      Investment Advisory and Administration Contract (2) 

         (5)      (a) Distribution Contract with respect to Class A Shares (2)

                  (b) Distribution Contract with respect to Class B Shares (2)

                  (c) Distribution Contract with respect to Class C Shares (4)

                  (d) Distribution Contract with respect to Class Y Shares (5)

                  (e) Exclusive Dealer Agreement with respect to Class A Shares (2)

                  (f) Exclusive Dealer Agreement with respect to Class B Shares (2)

                  (g) Exclusive Dealer Agreement with respect to Class C Shares (4)

                  (h) Exclusive Dealer Agreement with respect to Class Y Shares (5)

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

         (7)      Custodian Agreement (2)

         (8)      Transfer Agency Agreement (1)

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

         (10)     Other opinions, appraisals, rulings and consents: Auditors' Consent (filed herewith) 

         (11)     Financial Statements omitted from Part B - none

         (12)     Letter of investment intent (2)

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

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

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

         (14)     and

         (27)     Financial Data Schedule (filed herewith)

         (15)     Plan pursuant to Rule 18f-3 (6)

</TABLE>
    

- ----------------
(1) Incorporated by reference from Post-Effective Amendment No. 11 to
the registration statement, SEC File No. 33-42160, filed May 4, 1998.

(2) Incorporated by reference from Post-Effective Amendment No. 12 to
the registration statement, SEC File No. 33-42160, filed July 1, 1998.


                                      C-1
<PAGE>

(3) Incorporated by reference from Articles III, VIII, IX, X and XI of
Registrant's Amended and Restated Declaration of Trust, as amended
April 8, 1998 and from Articles II, VII and X of Registrant's Restated
By-Laws.

(4) Incorporated by reference from Post-Effective Amendment No. 6 to the
registration statement, SEC File No. 33-42160, filed February 7, 1996.

(5) Incorporated by reference from Post-Effective Amendment No. 8 to the
registration statement, SEC File No. 33-42160, filed May 30, 1996.

   
(6) Incorporated by reference from Post-Effective Amendment No. 9 to the
registration statement, SEC File No. 33-42160, filed July 31, 1996.
    

Item 24. Persons Controlled by or under Common Control with Registrant

         None

Item 25. Indemnification

         Section 3 of Article X of the Declaration of Trust, "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 X, 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 3 of Article X also provides that the
Registrant may maintain insurance policies covering such rights of
indemnification.

         Additionally, "Limitation of Liability" in Article X of the Declaration
of Trust 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 or investment adviser of the Registrant.

         Section 2 of Article XI of the Declaration of Trust additionally
provides that, subject to the provisions of Section 1 of Article XI and to
Article X, trustees shall not be liable for errors of judgment or mistakes of
fact or law, for any act or omission in accordance with advice of counsel or
other experts, or for failing to follow such advice, with respect to the meaning
and operation of the Declaration of Trust.

         Article IX of the By-Laws provides that the Registrant may purchase and
maintain insurance on behalf of any person who is or was a trustee, officer or
employee of the Registrant, or is or was serving at the request of the
Registrant as a trustee, officer or employee of a corporation, partnership,
joint venture, trust or other enterprise against any liability asserted against
him and incurred by him in any such capacity or arising out of his status as
such, whether or not the Registrant would have the power to indemnify him
against such liability to the Registrant or its shareholders, provided that the
Registrant may not purchase or maintain insurance that protects any such person
against any liability to which he would otherwise be subject by reason of
willful misfeasance, bad faith, gross negligence, or reckless disregard of the
duties involved in the conduct of his office.

         Section 9 of the Investment Advisory and Administration Contract with
Mitchell Hutchins Asset Management Inc. ("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. Section 10 of 


                                      C-2
<PAGE>

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

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.
                  GLOBAL SMALL CAP FUND INC.
                  INSURED MUNICIPAL INCOME FUND INC.
                  INVESTMENT GRADE MUNICIPAL INCOME FUND INC.


                                      C-3
<PAGE>

                  MANAGED HIGH YIELD FUND INC.
                  MANAGED HIGH YIELD PLUS FUND INC.
   
                  MITCHELL HUTCHINS INSTITUTIONAL SERIES
    
                  MITCHELL HUTCHINS PORTFOLIOS
                  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
                  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 principal underwriter for the
                  Registrant. PaineWebber acts as exclusive dealer for the
                  shares of the Registrant. 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 directors or
                  officers of the Registrant. Unless otherwise indicated, the
                  principal business address of each person named is 1285 Avenue
                  of the Americas, New York, NY 10019.

   
<TABLE>
<CAPTION>

                                                                               Position and Offices With Underwriter or
      Name                                Position With Registrant             Exclusive Dealer
      ----                                ------------------------             ----------------
<S>                                       <C>                                  <C>
      Margo N. Alexander                  President and Trustee                President, Chief Executive Officer and a
                                                                               Director of Mitchell Hutchins and Executive
                                                                               Vice President and a Director of PaineWebber

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

      Christopher G. Altschul             Vice President                       First Vice President and a Portfolio Manager of 
                                                                               Mitchell Hutchins

      Lawrence Chinsky                    Vice President and Assistant         Assistant Vice President and Investment
                                          Treasurer                            Monitoring Officer of the Mutual Fund
                                                                               Finance Department of Mitchell Hutchins

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

</TABLE>
    

                                      C-4
<PAGE>

   
<TABLE>
<CAPTION>

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

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

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

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

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

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

      Antony J. Scott                     Vice President                       First Vice President and a Portfolio Manager of 
                                                                               Mitchell Hutchins

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

      Mark Tincher                        Vice President                       Managing Director and Chief Investment
                                                                               Officer -- U.S. Equity Investments of
                                                                               Mitchell Hutchins

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

</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 Mitchell Hutchins, 1285 Avenue of the Americas, New
    York, New York 10019. All other accounts, books and documents required by
    Rule 31a-1 are maintained in the physical possession of Registrant's
    transfer agent and custodian.

    Item 29.  Management Services

                Not applicable.

    Item 30.  Undertakings

                None.


                                      C-5
<PAGE>

                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all the
requirements for effectiveness of this Post-Effective Amendment to its
Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Post-Effective Amendment 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 19th day of November , 1998.

                        PAINEWEBBER MANAGED ASSETS 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
Post-Effective Amendment has been signed below by the following persons in the
capacities and on the dates indicated:

<TABLE>
<CAPTION>

Signature                                 Title                                      Date
- ---------                                 -----                                      ----
<S>                                       <C>                                        <C>
/s/ Margo N. Alexander                    President and Trustee                      November 19, 1998
- ---------------------------               (Chief Executive Officer)
Margo N. Alexander *                      

/s/ E. Garrett Bewkes, Jr.                Trustee and Chairman                       November 19, 1998
- ---------------------------               of the Board of Trustees
E. Garrett Bewkes, Jr. *                  

/s/ Richard Q. Armstrong                  Trustee                                    November 19, 1998
- ---------------------------
Richard Q. Armstrong *

/s/ Richard R. Burt                       Trustee                                    November 19, 1998
- ---------------------------
Richard R. Burt *
/s/ Mary C. Farrell                       Trustee                                    November 19, 1998
- ---------------------------
Mary C. Farrell *

/s/ Meyer Feldberg                        Trustee                                    November 19, 1998
- ---------------------------
Meyer Feldberg *
/s/ George W. Gowen                       Trustee                                    November 19, 1998
- ---------------------------
George W. Gowen *

/s/ Frederic V. Malek                     Trustee                                    November 19, 1998
- ---------------------------
Frederic V. Malek *

/s/ Carl W. Schafer                       Trustee                                    November 19, 1998
- ---------------------------
Carl W. Schafer *

/s/ Paul H. Schubert                      Vice President and Treasurer (Chief        November 19, 1998
- ---------------------------               Financial and Accounting Officer)
Paul H. Schubert                          

</TABLE>


<PAGE>

                             SIGNATURES (Continued)

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


<PAGE>

                        PAINEWEBBER MANAGED ASSETS TRUST

                                  EXHIBIT INDEX
   
<TABLE>
<CAPTION>

    Exhibit
    Number
<S>               <C>
         (1)      (a) Amended and Restated Declaration of Trust (1)

                  (b) Amendment effective April 8, 1998 to Declaration of Trust (2)

         (2)      Restated By-Laws (1)

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

         (4)      Investment Advisory and Administration Contract (2) 

         (5)      (a) Distribution Contract with respect to Class A Shares (2)

                  (b) Distribution Contract with respect to Class B Shares (2)

                  (c) Distribution Contract with respect to Class C Shares (4)

                  (d) Distribution Contract with respect to Class Y Shares (5)

                  (e) Exclusive Dealer Agreement with respect to Class A Shares (2)

                  (f) Exclusive Dealer Agreement with respect to Class B Shares (2)

                  (g) Exclusive Dealer Agreement with respect to Class C Shares (4)

                  (h) Exclusive Dealer Agreement with respect to Class Y Shares (5)

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

         (7)      Custodian Agreement (2)

         (8)      Transfer Agency Agreement (1)

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

         (10)     Other opinions, appraisals, rulings and consents: Auditors' Consent (filed herewith) 

         (11)     Financial Statements omitted from Part B - none

         (12)     Letter of investment intent (2)

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

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

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

         (14)     and

         (27)     Financial Data Schedule (filed herewith)

         (15)     Plan pursuant to Rule 18f-3 (6)
</TABLE>
    

- ----------------
(1) Incorporated by reference from Post-Effective Amendment No. 11 to
the registration statement, SEC File No. 33-42160, filed May 4, 1998.


<PAGE>

(2) Incorporated by reference from Post-Effective Amendment No. 12 to
the registration statement, SEC File No. 33-42160, filed July 1, 1998.

(3) Incorporated by reference from Articles III, VIII, IX, X and XI of
Registrant's Amended and Restated Declaration of Trust, as amended
April 8, 1998 and from Articles II, VII and X of Registrant's Restated
By-Laws.

(4) Incorporated by reference from Post-Effective Amendment No. 6 to the
registration statement, SEC File No. 33-42160, filed February 7, 1996.

(5) Incorporated by reference from Post-Effective Amendment No. 8 to the
registration statement, SEC File No. 33-42160, filed May 30, 1996.

   
(6) Incorporated by reference from Post-Effective Amendment No. 9 to the
registration statement, SEC File No. 33-42160, filed July 31, 1996.
    



<PAGE>


                                                                   Exhibit No. 9

                           Kirkpatrick & Lockhart LLP
                         1800 Massachusetts Avenue, N.W.
                                    2nd Floor
                           Washington, D.C. 20036-1800
                             Telephone 202-778-9000
                                   www.kl.com

                                November 20, 1998

PaineWebber Managed Assets Trust
1285 Avenue of the Americas
New York, New York 10019

Ladies and Gentlemen:

         You have requested our opinion, as counsel to PaineWebber Managed
Assets 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 during the time that Post-Effective Amendment No. 13 to
the Trust's Registration Statement on Form N-1A ("PEA") is effective and has not
been superseded by another post-effective amendment. The series of the Trust is
PaineWebber Mid Cap Fund.

         As such counsel, we have examined certified or other copies, believed
by us to be genuine, of the Trust's Declaration of Trust 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) in the Commonwealth of
Massachusetts 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 note, however, that the Trust is an entity of the type commonly
known as a "Massachusetts business trust." Under Massachusetts law, shareholders
could, under certain circumstances, be held personally liable for the
obligations of the Trust. The Declaration  of Trust states that creditors of,
contractors with and claimants against the Trust or any series shall look only
to the assets of the Trust for the appropriate series for payment. It also
requires that notice of such disclaimer be given in each note, bond, contract,
certificate undertaking or instrument made or issued by the officers or the
trustees of the Trust on behalf of the Trust. The Declaration 

<PAGE>

PaineWebber Managed Assets Trust
November 20, 1998
Page 2


of Trust further provides: (1) for indemnification from the assets of the Trust
or the appropriate series for all loss and expense of any shareholder held
personally liable for the obligations of the Trust or any series by virtue of
ownership of shares of the Trust or such series; and (2) for the Trust or
appropriate series to assume the defense of any claim against the shareholder
for any act or obligation of the Trust or series. Thus, the risk of a
shareholder incurring financial loss on account of shareholder liability is
limited to circumstances in which the Trust or series would be unable to meet
its obligations.

         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



<PAGE>

                       CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the captions "Financial
Highlights" in the Prospectus and "Auditors" in the Statement of Additional
Information and to the incorporation by reference of our report on PaineWebber
Mid Cap Fund dated October 16, 1998 in this Registration Statement (Form N-1A
No. 33-42160) of PaineWebber Managed Assets Trust.


                                             /s/ Ernst & Young LLP
                                             ---------------------
                                             ERNST & YOUNG LLP

New York, New York
November 19, 1998



<PAGE>

                                                               Exhibit No. 13(a)


               PAINEWEBBER MANAGED ASSETS TRUST -- CLASS A SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940

         WHEREAS, PaineWebber Managed Assets Trust ("Fund") is registered under
the Investment Company Act of 1940, as amended ("1940 Act"), as an open-end
management investment company, and has one distinct series of shares of
beneficial interest ("Series"), which corresponds to a distinct portfolio and
has been designated as PaineWebber Mid Cap Fund; and

         WHEREAS, the Fund has adopted a Plan of Distribution pursuant to Rule
12b-1 under the 1940 Act with respect to the above-referenced Series and desires
to replace it with this amended Plan of Distribution ("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 Fund's board of trustees ("Board") and have
Class A shares established; and

         WHEREAS, the Fund 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 Fund 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 Fund who are not "interested persons" of the Fund 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 "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 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 

<PAGE>

outstanding voting securities of the Class A 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 service fees payable by the 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 Fund shall be committed to
the discretion of the Board members who are not interested persons of the Fund.

         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 Fund 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 Fund and the shareholders of each Series
shall not be liable for any obligations of the Fund 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 Fund
or such Series in settlement of such right or claim, and not to such Board
members or shareholders.

         IN WITNESS WHEREOF, the Fund has executed this Amended Plan of
Distribution on the day and year set forth below in New York, New York.

         Date: September 10, 1998

ATTEST:                                        PAINEWEBBER MANAGED ASSETS TRUST

/s/ Cristina Paradiso                          By: /s/ Dianne E. O'Donnell
- ---------------------                              -----------------------



<PAGE>

                                                               Exhibit No. 13(b)


               PAINEWEBBER MANAGED ASSETS TRUST -- CLASS B SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940

         WHEREAS, PaineWebber Managed Assets Trust ("Fund") is registered under
the Investment Company Act of 1940, as amended ("1940 Act"), as an open-end
management investment company, and has one distinct series of shares of
beneficial interest ("Series"), which corresponds to a distinct portfolio and
has been designated as PaineWebber Mid Cap Fund; and

         WHEREAS, the Fund has adopted a Plan of Distribution pursuant to Rule
12b-1 under the 1940 Act with respect to the above-referenced Series and desires
to replace it with this amended Plan of Distribution ("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 Fund's board of trustees ("Board") and have
Class B shares established; and

         WHEREAS, the Fund 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 Fund 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. Each 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. Such fees shall be
calculated and accrued daily and paid monthly or at such other intervals as the
Board shall determine:

                  B. 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.

                  C. 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 


                                        2
<PAGE>

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 vote of 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 Fund who are not "interested persons" of the Fund 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.

         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


                                        3
<PAGE>

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 Paragraph 1A or the amount of service fees
provided for in Paragraph 1B 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 the
Series to Mitchell Hutchins under Paragraphs 1A and 1B 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 and 1B 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 and 1B 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 Fund shall be committed to
the discretion of the Board members who are not interested persons of the Fund.

         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 Fund 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 Fund and the shareholders of each Series
shall not be liable for any obligations of the Fund 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 Fund
or such Series in settlement of such right or claim, and not to such Board
members or shareholders.


                                        4
<PAGE>

         IN WITNESS WHEREOF, the Fund has executed this Amended Plan of
Distribution on the day and year set forth below in New York, New York.

         Date:  September 10, 1998

ATTEST:                                       PAINEWEBBER MANAGED ASSETS TRUST

/s/ Cristina Paradiso                         By: /s/ Dianne E. O'Donnell
- ---------------------                             -----------------------




<PAGE>

                                                               Exhibit No. 13(c)


               PAINEWEBBER MANAGED ASSETS TRUST -- CLASS C SHARES

                   PLAN OF DISTRIBUTION PURSUANT TO RULE 12b-1
                    UNDER THE INVESTMENT COMPANY ACT OF 1940

         WHEREAS, PaineWebber Managed Assets Trust ("Fund") is registered under
the Investment Company Act of 1940, as amended ("1940 Act"), as an open-end
management investment company, and has one distinct series of shares of
beneficial interest ("Series"), which corresponds to a distinct portfolio and
has been designated as PaineWebber Mid Cap Fund; and

         WHEREAS, the Fund has adopted a Plan of Distribution pursuant to Rule
12b-1 under the 1940 Act with respect to the above-referenced Series and desires
to replace it with this amended Plan of Distribution ("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 Fund's board of trustees ("Board") and have
Class C shares established; and

         WHEREAS, the Fund 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 Fund hereby adopts this Plan with respect to the
Class C shares of each Series in accordance with Rule 12b-1 under the 1940 Act.

         1. 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 Mid Cap 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.

         2. 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.

         3. 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.

         4. 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 Fund who are not "interested persons" of the Fund 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.

         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 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.

         7. 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 B shares of that Series.

         8. 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.

         9. 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 1B 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 Fund shall be committed to
the discretion of the Board members who are not interested persons of the Fund.

         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 Fund 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 Fund and the shareholders of each Series
shall not be liable for any obligations of the Fund 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 Fund
or such Series in settlement of such right or claim, and not to such Board
members or shareholders.

         IN WITNESS WHEREOF, the Fund has executed this Amended Plan of
Distribution on the day and year set forth below in New York, New York.

         Date: September 10, 1998

ATTEST:                                        PAINEWEBBER MANAGED ASSETS TRUST

/s/ Cristina Paradiso                          By: /s/ Dianne E. O'Donnell
- ---------------------                              -----------------------


                                       4



<TABLE> <S> <C>


<ARTICLE>    6
<CIK>        0000878089
<NAME>       PAINEWEBBER MANAGED ASSETS TRUST
<SERIES>
   <NUMBER>  001
   <NAME>    MID CAP FUND CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          AUG-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               AUG-31-1998
<INVESTMENTS-AT-COST>                           103680
<INVESTMENTS-AT-VALUE>                           91275
<RECEIVABLES>                                      983
<ASSETS-OTHER>                                    6726
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   98984
<PAYABLE-FOR-SECURITIES>                          1159
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         7175
<TOTAL-LIABILITIES>                               8334
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         96193
<SHARES-COMMON-STOCK>                            11379
<SHARES-COMMON-PRIOR>                             6780
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           6861
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       (12404)
<NET-ASSETS>                                     90650
<DIVIDEND-INCOME>                                  249
<INTEREST-INCOME>                                  215
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     812
<NET-INVESTMENT-INCOME>                          (348)
<REALIZED-GAINS-CURRENT>                         27912
<APPREC-INCREASE-CURRENT>                      (63109)
<NET-CHANGE-FROM-OPS>                          (35545)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (33325)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           5824
<NUMBER-OF-SHARES-REDEEMED>                       4267
<SHARES-REINVESTED>                               3042
<NET-CHANGE-IN-ASSETS>                         (60596)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                         8722
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              538
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    812
<AVERAGE-NET-ASSETS>                            124261
<PER-SHARE-NAV-BEGIN>                            15.00
<PER-SHARE-NII>                                 (0.03)
<PER-SHARE-GAIN-APPREC>                         (3.15)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.97
<EXPENSE-RATIO>                                   1.48
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE>    6
<CIK>        0000878089
<NAME>       PAINEWEBBER MANAGED ASSETS TRUST
<SERIES>
   <NUMBER>  002
   <NAME>    MID CAP FUND CLASS B
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          AUG-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               AUG-31-1998
<INVESTMENTS-AT-COST>                            62881
<INVESTMENTS-AT-VALUE>                           55358
<RECEIVABLES>                                      596
<ASSETS-OTHER>                                    4079
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   60033
<PAYABLE-FOR-SECURITIES>                           703
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         4352
<TOTAL-LIABILITIES>                               5055
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         58340
<SHARES-COMMON-STOCK>                             6885
<SHARES-COMMON-PRIOR>                             9492
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           4161
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (7523)
<NET-ASSETS>                                     54978
<DIVIDEND-INCOME>                                  151
<INTEREST-INCOME>                                  131
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     758
<NET-INVESTMENT-INCOME>                          (476)
<REALIZED-GAINS-CURRENT>                         16928
<APPREC-INCREASE-CURRENT>                      (38275)
<NET-CHANGE-FROM-OPS>                          (21824)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (21181)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            355
<NUMBER-OF-SHARES-REDEEMED>                       4864
<SHARES-REINVESTED>                               1903
<NET-CHANGE-IN-ASSETS>                         (37720)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                        12270
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              326
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    758
<AVERAGE-NET-ASSETS>                             82332
<PER-SHARE-NAV-BEGIN>                            15.07
<PER-SHARE-NII>                                 (0.07)
<PER-SHARE-GAIN-APPREC>                         (3.16)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.99
<EXPENSE-RATIO>                                   2.32
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE>    6
<CIK>        0000878089
<NAME>       PAINEWEBBER MANAGED ASSETS TRUST
<SERIES>
   <NUMBER>  003
   <NAME>    MID CAP FUND CLASS C
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          AUG-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               AUG-31-1998
<INVESTMENTS-AT-COST>                            19300
<INVESTMENTS-AT-VALUE>                           16991
<RECEIVABLES>                                      183
<ASSETS-OTHER>                                    1252
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   18426
<PAYABLE-FOR-SECURITIES>                           215
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         1336
<TOTAL-LIABILITIES>                               1551
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         17907
<SHARES-COMMON-STOCK>                             2326
<SHARES-COMMON-PRIOR>                             1976
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           1277
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (2309)
<NET-ASSETS>                                     16875
<DIVIDEND-INCOME>                                   46
<INTEREST-INCOME>                                   40
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     225
<NET-INVESTMENT-INCOME>                          (139)
<REALIZED-GAINS-CURRENT>                          5196
<APPREC-INCREASE-CURRENT>                      (11748)
<NET-CHANGE-FROM-OPS>                           (6691)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                        (6615)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            384
<NUMBER-OF-SHARES-REDEEMED>                        687
<SHARES-REINVESTED>                                652
<NET-CHANGE-IN-ASSETS>                         (11692)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                         2386
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              100
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    225
<AVERAGE-NET-ASSETS>                             23511
<PER-SHARE-NAV-BEGIN>                            14.07
<PER-SHARE-NII>                                 (0.06)
<PER-SHARE-GAIN-APPREC>                         (2.90)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.26
<EXPENSE-RATIO>                                   2.28
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE>    6
<CIK>        0000878089
<NAME>       PAINEWEBBER MANAGED ASSETS TRUST
<SERIES>
   <NUMBER>  004
   <NAME>    MID CAP FUND CLASS Y
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   5-MOS
<FISCAL-YEAR-END>                          AUG-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               AUG-31-1998
<INVESTMENTS-AT-COST>                               74
<INVESTMENTS-AT-VALUE>                              65
<RECEIVABLES>                                        1
<ASSETS-OTHER>                                       5
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                      71
<PAYABLE-FOR-SECURITIES>                             1
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                            5
<TOTAL-LIABILITIES>                                  6
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                            69
<SHARES-COMMON-STOCK>                                8
<SHARES-COMMON-PRIOR>                                2
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              5
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           (9)
<NET-ASSETS>                                        65
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                       1
<NET-INVESTMENT-INCOME>                            (1)
<REALIZED-GAINS-CURRENT>                            20
<APPREC-INCREASE-CURRENT>                         (45)
<NET-CHANGE-FROM-OPS>                             (26)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                          (11)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              8
<NUMBER-OF-SHARES-REDEEMED>                          3
<SHARES-REINVESTED>                                  1
<NET-CHANGE-IN-ASSETS>                            (30)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            3
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                1
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      1
<AVERAGE-NET-ASSETS>                                47
<PER-SHARE-NAV-BEGIN>                            15.00
<PER-SHARE-NII>                                 (0.01)
<PER-SHARE-GAIN-APPREC>                         (3.17)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.97
<EXPENSE-RATIO>                                   1.23
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>


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