PAINEWEBBER SECURITIES TRUST
N-30D, 1996-08-06
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<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

            PERFORMANCE RESULTS (UNAUDITED)
 
<TABLE>
<CAPTION>
                        NET ASSET VALUE                  TOTAL RETURN/1/
                -------------------------------- --------------------------------
                                                     12 MONTHS        4 MONTHS
                 05/31/96 01/31/96   05/31/95     ENDED 05/31/96   ENDED 05/31/96
- ---------------------------------------------------------------------------------
<S>             <C>       <C>      <C>           <C>               <C>
Class A
 Shares          $ 8.90    $ 8.99     $8.98            8.90%            1.67%
- ---------------------------------------------------------------------------------
Class B
 Shares            8.89      8.98      8.97            8.17             1.42
- ---------------------------------------------------------------------------------
Class C
 Shares/3/         8.89      8.98      8.98            8.28             1.50
- ---------------------------------------------------------------------------------
 
PERFORMANCE SUMMARY CLASS A SHARES
 
<CAPTION>
                 NET ASSET VALUE
                ------------------ CAPITAL GAINS                       TOTAL
PERIOD COVERED  BEGINNING   ENDING  DISTRIBUTED  DIVIDENDS PAID/2/   RETURN/1/
- ---------------------------------------------------------------------------------
<S>             <C>       <C>      <C>           <C>               <C>
02/07/94 -
  12/31/94       $10.00    $ 8.56     $--             $0.5792          (8.76)%
- ---------------------------------------------------------------------------------
1995               8.56      8.79       --             0.9392          14.12
- ---------------------------------------------------------------------------------
01/01/96 -
  05/31/96         8.79      8.90       --             0.2370           3.98
- ---------------------------------------------------------------------------------
                            Total:    $0.0000         $1.7554
- ---------------------------------------------------------------------------------
                          CUMULATIVE TOTAL RETURN AS OF 05/31/96 :      8.27%
- ---------------------------------------------------------------------------------
 
PERFORMANCE SUMMARY CLASS B SHARES
 
<CAPTION>
                 NET ASSET VALUE
                ------------------ CAPITAL GAINS                       TOTAL
PERIOD COVERED  BEGINNING   ENDING  DISTRIBUTED  DIVIDENDS PAID/2/   RETURN/1/
- ---------------------------------------------------------------------------------
<S>             <C>       <C>      <C>           <C>               <C>
02/07/94 -
  12/31/94       $10.00    $ 8.55     $--             $0.5242          (9.41)%
- ---------------------------------------------------------------------------------
1995               8.55      8.78       --             0.8733          13.29
- ---------------------------------------------------------------------------------
01/01/96 -
  05/31/96         8.78      8.89       --             0.2149           3.73
- ---------------------------------------------------------------------------------
                            Total:    $0.0000         $1.6124
- ---------------------------------------------------------------------------------
                          CUMULATIVE TOTAL RETURN AS OF 05/31/96 :      6.46%
- ---------------------------------------------------------------------------------
 
PERFORMANCE SUMMARY CLASS C SHARES/3/
 
<CAPTION>
                 NET ASSET VALUE
                ------------------ CAPITAL GAINS                       TOTAL
PERIOD COVERED  BEGINNING   ENDING  DISTRIBUTED  DIVIDENDS PAID/2/   RETURN/1/
- ---------------------------------------------------------------------------------
<S>             <C>       <C>      <C>           <C>               <C>
02/07/94 -
  12/31/94       $10.00    $ 8.56     $--             $0.5424          (9.13)%
- ---------------------------------------------------------------------------------
1995               8.56      8.79       --             0.8951          13.56
- ---------------------------------------------------------------------------------
01/01/96 -
  05/31/96         8.79      8.89       --             0.2221           3.69
- ---------------------------------------------------------------------------------
                            Total:    $0.0000         $1.6596
- ---------------------------------------------------------------------------------
                          CUMULATIVE TOTAL RETURN AS OF 05/31/96 :      7.01%
- ---------------------------------------------------------------------------------
</TABLE>
 
AVERAGE ANNUAL RETURN
<TABLE>
<CAPTION>
                              % RETURN WITHOUT      % RETURN AFTER DEDUCTING
                                SALES CHARGE          MAXIMUM SALES CHARGE
                              -------------------- ----------------------------
                                    CLASS                    CLASS
                              -------------------- ----------------------------
                                 A*    B**   C***        A*      B**      C***
- -------------------------------------------------------------------------------
<S>                           <C>    <C>    <C>    <C>      <C>       <C>
Twelve Months Ended 06/30/96   9.28%  8.54% 8.77%    4.95%      3.54%     8.02%
- -------------------------------------------------------------------------------
Commencement of Operations
 Through 06/30/96+             3.80   3.04  3.27     2.03       1.42      3.27
- -------------------------------------------------------------------------------
</TABLE>
 
/1/ Figures assume reinvestment of all dividends and capital gains distributions
    at net asset value on the payable dates and do not include sales charges;
    results for each class would be lower if sales charges were included.
/2/ Includes foreign exchange gain distributions, if any.
/3/ Formerly Class D shares.
*   Maximum sales charge for Class A shares is 4.0% of the public offering
    price. Class A shares bear ongoing 12b-1 service fees.
**  Maximum contingent deferred sales charge for Class B shares is 5.0% and is
    reduced to 0% after 6 years. Class B shares bear ongoing 12b-1 distribution
    and service fees.
*** Maximum contingent deferred sales charge for Class C shares is 0.75% and is
    reduced to 0% after 1 year. Class C shares bear ongoing 12b-1 distribution
    and service fees.
+   Commencement of issuance for all three classes of shares was February 7,
    1994.
 
 The data above represents past performance of the Fund's shares, which is no
 guarantee of future results. The principal value of an investment in the Fund
 will fluctuate, so that an investor's shares, when redeemed, may be worth
 more or less than their original cost.
 
                                       1
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

            PORTFOLIO OF INVESTMENTS                    MAY 31, 1996 (UNAUDITED)
 
<TABLE>
<CAPTION>
 PRINCIPAL
  AMOUNT                                   MATURITY       INTEREST
  (000)*                                     DATES         RATES        VALUE
 ---------                              --------------  -----------  -----------
 <C>         <S>                        <C>             <C>          <C>
 U.S. GOVERNMENT OBLIGATIONS -
   17.01%
 FEDERAL NATIONAL MORTGAGE
  ASSOCIATION CERTIFICATES - 9.36%
 $   6,400   FNMA TBA................         TBA         7.000%     $ 6,100,000
 SHORT-TERM U.S. GOVERNMENT
  OBLIGATIONS - 7.65%
     5,000   United States Treasury                       4.820 to
              Bills..................      06/27/96        4.900@      4,982,479
                                                                     -----------
 Total U.S. Government Obligations
  (cost - $11,078,479)..............                                  11,082,479
                                                                     -----------
 GLOBAL DEBT SECURITIES - 43.71%
 LONG-TERM GLOBAL DEBT SECURITIES -
   42.60%
 Australia - 4.41%
     3,800   Commonwealth of
              Australia..............      04/15/00       7.000        2,875,553
                                                                     -----------
 Brazil - 5.03%
 US$ 3,000   Federal Republic of
              Brazil PAR.............      04/15/24       5.000(b)     1,582,500
 US$ 2,600   Federal Republic of
              Brazil DCB.............      04/15/12       6.563++++    1,696,500
                                                                     -----------
                                                                       3,279,000
                                                                     -----------
 Canada - 2.24%
     1,936   Government of Canada....      09/01/99       7.750        1,456,735
                                                                     -----------
 Denmark - 3.03%
    11,250   Government of Denmark...      03/15/06       8.000        1,976,029
                                                                     -----------
 Germany - 5.21%
     5,105   Federal Republic of          01/03/05 to     6.250 to
              Germany................      01/04/24        7.375       3,394,926
                                                                     -----------
 Italy - 3.83%
 4,025,000   Republic of Italy.......      04/01/04       8.500        2,497,781
                                                                     -----------
 Mexico - 4.82%
 US$ 4,000   United Mexican States,                                             
              DISC(1)................      12/31/19       6.352 to              
                                                         6.391++++     3,140,000
                                                                     -----------
 Poland - 4.59%
 US$ 4,000   Republic of Poland PDI..      10/27/14       3.750(b)     2,987,480
                                                                     -----------
 Spain - 4.89%
   374,900   Government of Spain.....     08/30/98 to    11.450 to
                                           03/25/00        12.250      3,185,859
                                                                     -----------
 United Kingdom - 4.55%
     1,650   United Kingdom Gilt.....     07/14/00 to    10.000 to
                                           09/08/03        13.000      2,966,498
                                                                     -----------
 Total Long-Term Global Debt
  Securities (cost - $26,284,524)...                                  27,759,861
                                                                     -----------
 SHORT-TERM GLOBAL DEBT SECURITIES -
   1.11%
 Italy - 1.11%
 1,109,850   Swiss Bank Corporation
              Time Deposit
              (cost - $701,992)......      08/22/96      10.000          721,016
                                                                     -----------
 Total Global Debt Securities
  (cost - $26,986,516)..............                                  28,480,877
                                                                     -----------
 HIGH YIELD SECURITIES - 42.72%
 CORPORATE BONDS - 40.49%
 Airlines - 0.80%
       500   Airplane Pass Through
              Trust..................      03/15/19      10.875          523,750
       750#  USAfrica Airways,
              Inc.++.................      05/31/99      12.000(a)             0
                                                                     -----------
                                                                         523,750
                                                                     -----------
</TABLE>
 
                                       2
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

<TABLE>
<CAPTION>
 PRINCIPAL
  AMOUNT                                   MATURITY       INTEREST
   (000)                                     DATES         RATES        VALUE
 ---------                              --------------  -----------  -----------
 <C>         <S>                        <C>             <C>          <C>
 Cable - 4.67%
 $  1,500#   Australis Media Ltd. ...      05/15/03      14.000%+    $   937,500
    1,250    Echostar Communications.      03/15/04      13.125+         831,250
    1,250    Telewest PLC............      10/01/07      11.000+         743,750
    1,000    UIH Australia Pacific**.      05/15/06      14.000+         530,000
                                                                     -----------
                                                                       3,042,500
                                                                     -----------
 Communications - 4.46%
      110(2) GST
              Telecommunications**...      12/15/05      13.875+         621,500
      150    Intelcom Group USA,
              Inc. ..................      09/15/05      13.500+          91,500
      500    IXC Communications
              Inc.**.................      10/01/05      13.000          527,500
      750    Shared Technologies**...      03/01/06      12.250+         566,250
    2,000    Viatel Inc. ............      01/15/05      15.000+       1,100,000
                                                                     -----------
                                                                       2,906,750
                                                                     -----------
 Consumer Manufacturing - 4.60%
      900    Apparel Ventures, Inc. .      12/31/00      12.250          684,000
      653    Chattem Inc. ...........      06/15/04      12.750          653,000
    2,000    Decorative Home Accents.      06/30/02      13.000        1,660,000
                                                                     -----------
                                                                       2,997,000
                                                                     -----------
 Energy - 1.28%
      850    TransTexas Gas Corp. ...      06/15/02      11.500          833,000
                                                                     -----------
 Entertainment - 1.08%
      250    Alamo Rent A Car Inc. ..      01/31/06      11.750          255,000
      500    United Artists Theatre
              Circuit**..............      07/01/15       9.300          450,000
                                                                     -----------
                                                                         705,000
                                                                     -----------
 Financial Service - 1.43%
    1,000    Imperial Credit
              Industries.............      01/15/04       9.750          930,000
                                                                     -----------
 Food & Beverage - 3.94%
      500    Flagstar Corp. .........      12/01/02      10.875          447,500
    3,000    Iowa Select Farms++.....      02/15/04      17.250+       1,601,400
      500    Specialty Equipment
              Companies Inc. ........      12/01/03      11.375          521,250
                                                                     -----------
                                                                       2,570,150
                                                                     -----------
 Gaming - 3.07%
      500    Fitzgeralds Gaming
              Corp. .................      12/31/02      13.000          440,000
    1,106#   Grand Palais Casino,
              Inc.++.................      11/01/97      18.250(a)             0
    3,469#   Hemmeter Enterprises**..      12/15/00      12.000(a)       256,673
    1,000    PRT Funding Inc. .......      04/15/04      11.625          860,000
    1,063    Sam Houston Race Park
              Ltd. ..................      09/01/01      11.000          441,332
                                                                     -----------
                                                                       1,998,005
                                                                     -----------
 General Industrial - 4.69%
    1,000    Alpine Group............      07/15/03      12.250        1,000,000
    1,000    Jordan Industries.......      08/01/05      11.750+         695,000
      500    Kindercare Learning
              Centers................      06/01/01      10.375          517,500
    1,000    Poindexter JB Inc. .....      05/15/04      12.500          845,000
                                                                     -----------
                                                                       3,057,500
                                                                     -----------
 Media - 3.61%
      500    Affiliated Newspapers...      07/01/06      13.250+         337,500
    1,000    Grupo Televisa S.A.**...      05/15/08      13.250+         537,500
      500    KIII Communications
              Corp. .................      02/01/06       8.500          465,000
    1,000    NeoData Services Inc. ..      05/01/03      12.000        1,012,500
                                                                     -----------
                                                                       2,352,500
                                                                     -----------
</TABLE>
 
                                       3
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

<TABLE>
<CAPTION>
 PRINCIPAL
  AMOUNT                                  MATURITY       INTEREST
   (000)                                    DATES         RATES        VALUE
 ---------                             --------------  -----------  -----------
 <C>       <S>                         <C>             <C>          <C>
 Retail - 2.65%
 $  1,000  Petro PSC Properties
            L.P. ...................      06/01/02       12.500%    $   960,000
    1,000  Wickes Lumber Co. .......      12/15/03       11.625         765,000
                                                                    -----------
                                                                      1,725,000
                                                                    -----------
 Supermarkets & Drugstores - 1.01%
      700  Di Giorgio Corp. ........      02/15/03       12.000         658,000
                                                                    -----------
 Transport Non-Air - 3.20%
    1,000  Gearbulk Holding Ltd. ...      12/01/04       11.250       1,045,000
    1,000  TNT Transport Europe PLC.      04/15/04       11.500       1,040,000
                                                                    -----------
                                                                      2,085,000
                                                                    -----------
 Total Corporate Bonds (cost -
   $28,775,125)......................                                26,384,155
                                                                    -----------
<CAPTION>
  NUMBER
    OF
  SHARES
  ------
 <C>       <S>                                                      <C>
 COMMON STOCK (A) - 1.42%
 Communications - 0.42%
   72,200  Viatel Inc. ...........................................      274,360
                                                                    -----------
 Gaming - 0.78%
   46,329  Casino America Inc. ...................................      434,339
      299  SHRP Equity Inc. ......................................       68,770
                                                                    -----------
                                                                        503,109
                                                                    -----------
 Packaging - 0.22%
   11,298  Data Documents Inc. ...................................      144,050
                                                                    -----------
 Total Common Stock (cost - $1,769,048)...........................      921,519
                                                                    -----------
<CAPTION>
  NUMBER
    OF
 WARRANTS
 --------
 <C>       <S>                                                      <C>
 WARRANTS (A) - 0.81%
 Communications - 0.04%
    2,625  PageMart Nationwide Inc. ..............................       25,594
                                                                    -----------
 Consumer Manufacturing - 0.40%
    1,280  Chattem Inc. ..........................................        7,360
    2,000  Decorative Home Accents................................       14,000
    2,000  Icon Health & Fitness..................................      240,000
                                                                    -----------
                                                                        261,360
                                                                    -----------
 Food & Beverage - 0.07%
   30,000  Iowa Select Farms++....................................       45,000
                                                                    -----------
 Gaming - 0.08%
   10,295  Casino America Inc. ...................................       49,414
                                                                    -----------
 Homebuilding - 0.02%
    7,900  Capital Pacific Holdings Inc. .........................       11,850
                                                                    -----------
 Media - 0.10%
    2,000  Affiliated Newspapers..................................       60,000
    1,000  AVI Holdings Inc. .....................................        5,000
                                                                    -----------
                                                                         65,000
                                                                    -----------
 Retail - 0.10%
    2,000  Petro PSC Properties L.P. .............................       66,000
                                                                    -----------
 Total Warrants (cost - $591,587).................................      524,218
                                                                    -----------
 Total High Yield Securities (cost - $31,135,760).................   27,829,892
                                                                    -----------
</TABLE>
 
 
                                       4
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT                                MATURITY       INTEREST
  (000)                                  DATE           RATE        VALUE
- ---------                           --------------  -----------  -----------
<C>       <S>                       <C>             <C>          <C>
REPURCHASE AGREEMENT - 1.92%
$  1,252  Repurchase Agreement
           dated 05/31/96, with
           State Street Bank and
           Trust Company,
           collateralized by
           $1,255,000 U.S.
           Treasury Notes, 7.375%
           due 11/15/97;
           proceeds: $1,252,549
           (cost  -  $1,252,000).      06/03/96        5.260%    $ 1,252,000
                                                                 -----------
Total Investments (cost -
  $70,452,755)--105.36%...........                                68,645,248
Liabilities in excess of other
 assets--(5.36)%..................                                (3,489,367)
                                                                 -----------
Net Assets - 100.00%..............                               $65,155,881
                                                                 ===========
</TABLE>
- -------
Note: The Global debt section of the portfolio of investments is listed by the
issuer's country of origin.
*   Global debt securities are in local currency unless otherwise indicated.
**  Security exempt from registration under Rule 144A of the Securities Act of
    1933. These securities may be resold in transactions exempt from
    registration, normally to qualified institutional buyers.
#   Security represents a unit which is composed of the stated bond with
    attached warrants or common stock
@   Yield to maturity for discounted securities
+   Denotes a step-up bond or a zero coupon bond that converts to the noted
    fixed rate at a designated future date
++  Illiquid securities representing 2.4% of portfolio assets
+++ Variable+rate security, interest rate noted is current rate at May 31, 1996.
(a) Non-income producing
(b) Reflects rate at May 31, 1996 on step coupon rate instruments
(1) With an additional 6,154,000 recoverable rights attached maturing on
    06/30/03 with no market value
(2) Represents 110 units. Each unit consists of eight senior discount notes and
    one convertible senior subordinated discount note.
DISC - Discount Bonds
DCB - Debt Conversion Bond
PAR - Par Bonds
PDI - Past Due Interest
TBA - (To Be Assigned) Securities are purchased on a forward committment basis
      with approximated (generally +/ -  2.5%) principal amount and generally
      stated maturity date. The actual principal amount and specific maturity
      date will be determined upon settlement when mortgage pools are assigned.
 
FORWARD FOREIGN CURRENCY CONTRACTS
 
<TABLE>
<CAPTION>
                                                                               NET
                                                                            UNREALIZED
                         CONTRACT TO                                       APPRECIATION
                           DELIVER   IN EXCHANGE FOR    MATURITY DATE     (DEPRECIATION)
                         ----------- --------------- -------------------- --------------
<S>                      <C>         <C>             <C>                  <C>
Belgian Francs.......... 114,436,137 US$   3,901,165 06/04/96 to 09/30/96    $232,031
Belgian Francs..........  20,547,446 US$     680,717       06/27/96            24,375
British Pounds..........     650,000 US$     988,650       06/28/96           (18,148)
Finnish Markka..........  13,481,668 US$   2,849,868       06/28/96           (15,666)
German Deutschemarks....   1,365,000 US$     896,256       08/14/96            (2,177)
German Deutschemarks....   2,295,000 US$   1,495,065       08/23/96           (16,321)
New Zealand Dollars.....   1,550,000 US$   1,063,300       06/10/96            10,909
New Zealand Dollars.....   1,085,000 US$     735,521       06/25/96               149
Spanish Pesetas......... 150,000,000 US$   1,200,788       06/04/96            35,258
Spanish Pesetas.........  80,000,000 US$     628,338       08/09/96             9,071
Spanish Pesetas......... 205,000,000 US$   1,604,571       08/13/96            18,027
U.S. Dollars............   1,216,558 BFR  36,625,939       06/04/96           (48,356)
U.S. Dollars............   1,197,050 ESP 150,000,000       06/04/96           (31,520)
U.S. Dollars............   1,871,831 FIM   8,883,038       06/28/96            16,262
U.S. Dollars............   1,056,635 NZD   1,550,000       06/10/96            (4,244)
U.S. Dollars............     738,885 NZD   1,085,000       06/25/96            (3,513)
                                                                             --------
                                                                             $206,137
                                                                             ========
</TABLE>
- -------
CURRENCY TYPE ABBREVIATIONS:
BFR - Belgian Francs
ESP - Spanish Pesetas
FIM - Finnish Markka
NZD - New Zealand Dollars
 
                 See accompanying notes to financial statements
 
                                       5
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

            STATEMENT OF ASSETS AND LIABILITIES         MAY 31, 1996 (UNAUDITED)
 
<TABLE>
<S>                                                               <C>
Assets
Investments in securities, at value (cost - $70,452,755)......... $68,645,248
Cash denominated in foreign currencies (cost - $139,999).........     140,000
Interest receivable..............................................   1,384,442
Receivable for investments sold..................................     904,313
Receivable for shares of beneficial interest sold................      44,386
Deferred organization costs......................................     160,874
Unrealized appreciation on forward foreign currency contracts....     346,082
Other assets.....................................................      77,386
                                                                  -----------
Total assets.....................................................  71,702,731
                                                                  -----------
Liabilities
Payable for investments purchased................................   6,096,000
Unrealized depreciation on forward foreign currency contracts....     139,945
Payable to affiliates............................................      88,855
Payable for shares of beneficial interest repurchased............      84,108
Accrued expenses and other liabilities...........................     137,942
                                                                  -----------
Total liabilities................................................   6,546,850
                                                                  -----------
Net Assets
Beneficial interest-$0.001 par value (unlimited amount
 authorized).....................................................  75,382,964
Distributions in excess of net investment income.................    (302,327)
Accumulated net realized losses from investment and foreign
 currency transactions...........................................  (8,315,415)
Net unrealized depreciation of investments, other assets,
 liabilities and forward contracts denominated in foreign
 currencies......................................................  (1,609,341)
                                                                  -----------
Net assets....................................................... $65,155,881
                                                                  ===========
Class A:
Net assets....................................................... $ 9,256,509
                                                                  -----------
Shares outstanding...............................................   1,040,259
                                                                  -----------
Net asset and redemption value per share.........................       $8.90
                                                                        =====
Maximum offering price per share (net asset value plus sales
 charge of 4.00% of offering price)..............................       $9.27
                                                                        =====
Class B:
Net assets....................................................... $38,377,748
                                                                  -----------
Shares outstanding...............................................   4,318,043
                                                                  -----------
Net asset value and offering price per share.....................       $8.89
                                                                        =====
Class C:
Net assets....................................................... $17,521,624
                                                                  -----------
Shares outstanding...............................................   1,970,155
                                                                  -----------
Net asset value and offering price per share.....................       $8.89
                                                                        =====
</TABLE>
 
                 See accompanying notes to financial statements
 
                                       6
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

                                        FOR THE FOUR MONTHS ENDED 
STATEMENT OF OPERATIONS                 MAY 31, 1996 (UNAUDITED)
 
<TABLE>
<S>                                                                   <C>
Investment Income:
Interest............................................................  $2,182,126
                                                                      ----------
Expenses:
Investment advisory and administration..............................     166,394
Service fees - Class A..............................................       7,782
Service and distribution fees - Class B.............................     129,720
Service and distribution fees - Class C.............................      45,762
Reports and notices to shareholders.................................      56,331
Legal and audit.....................................................      48,581
Custody and accounting..............................................      33,565
State registration..................................................      25,756
Transfer agency and service fees....................................      21,985
Amortization of organizational expenses.............................      20,000
Trustees' fees......................................................       1,100
Other expenses......................................................       8,758
                                                                      ----------
                                                                         565,734
                                                                      ----------
Net investment income...............................................   1,616,392
                                                                      ----------
Realized and unrealized gains (losses) from investment activities:
Net realized gains from:
 Investment transactions............................................     183,618
 Foreign currency transactions......................................     207,382
Net change in unrealized appreciation/depreciation of:
 Investments........................................................    (995,554)
 Other assets, liabilities and forward contracts denominated in
  foreign currencies................................................     (47,663)
                                                                      ----------
Net realized and unrealized losses from investment activities.......    (652,217)
                                                                      ----------
Net increase in net assets resulting from operations................  $  964,175
                                                                      ==========
</TABLE>
 
                 See accompanying notes to financial statements
 
                                       7
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

            STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                 FOR THE FOUR
                                                 MONTHS ENDED    FOR THE YEAR
                                                 MAY 31, 1996       ENDED
                                                 (UNAUDITED)   JANUARY 31, 1996
                                                 ------------  ----------------
<S>                                              <C>           <C>
From operations:
Net investment income........................... $ 1,616,392     $  5,789,252
Net realized gains (losses) from investment
 transactions...................................     183,618       (2,123,711)
Net realized gains from foreign currency
 transactions...................................     207,382          542,636
Net change in unrealized
 appreciation/depreciation of investments.......    (995,554)       5,491,298
Net change in unrealized
 appreciation/depreciation of other assets,
 liabilities and forward contracts denominated
 in foreign currencies..........................     (47,663)         199,054
                                                 -----------     ------------
Net increase in net assets resulting from
 operations.....................................     964,175        9,898,529
                                                 -----------     ------------
Dividends and distributions to shareholders
 from:
Net investment income - Class A.................    (251,348)        (904,512)
Net investment income - Class B.................    (951,459)      (3,321,067)
Net investment income - Class C.................    (463,194)      (1,724,956)
Net realized gains from foreign currency
 transactions - Class A.........................         --          (106,596)
Net realized gains from foreign currency
 transactions - Class B.........................         --          (456,125)
Net realized gains from foreign currency
 transactions - Class C.........................         --          (216,547)
                                                 -----------     ------------
                                                  (1,666,001)      (6,729,803)
                                                 -----------     ------------
From beneficial interest transactions:
Net proceeds from the sale of shares............   2,586,603       18,385,013
Cost of shares repurchased......................  (7,304,912)     (28,444,356)
Proceeds from dividends reinvested..............     850,115        3,549,276
                                                 -----------     ------------
Net decrease in net assets from beneficial
 interest transactions..........................  (3,868,194)      (6,510,067)
                                                 -----------     ------------
Net decrease in net assets......................  (4,570,020)      (3,341,341)
Net assets:
Beginning of period.............................  69,725,901       73,067,242
                                                 -----------     ------------
End of period................................... $65,155,881     $ 69,725,901
                                                 ===========     ============
</TABLE>
 
                 See accompanying notes to financial statements
 
                                       8
<PAGE>
 
PAINEWEBBER     NOTES TO FINANCIAL STATEMENTS--(UNAUDITED)

ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES
 
PaineWebber Securities Trust ("Trust") was organized under Massachusetts law by
a Declaration of Trust dated December 3, 1992 and is registered with the
Securities and Exchange Commission under the Investment Company Act of 1940, as
amended, as an open-end, diversified investment company. The Trust is a series
mutual fund with two funds: PaineWebber Strategic Income Fund (the "Fund") and
PaineWebber Small Cap Value Fund. The financial statements of PaineWebber Small
Cap Value Fund are not included herein. At a meeting the Board of Trustees
elected to change the Fund's fiscal year end from January 31 to November 30.
 
Costs incurred by the Fund in connection with its organization and the
registration of its shares have been deferred and are being amortized using the
straight-line method over a period not to exceed 60 months from the
commencement of operations.
 
Currently, the Fund offers Class A, Class B and Class C shares. Each class
represents interests in the same assets of the Fund, and the classes are
identical except for differences in their sales charge structures, distribution
charges and certain transfer agency expenses. In addition, Class B shares and
all corresponding reinvested dividend shares automatically convert to Class A
shares approximately six years after issuance. All classes of shares have equal
voting privileges except that each class has exclusive voting rights with
respect to its distribution plan.
 
The preparation of financial statements in accordance with generally accepted
accounting principles requires Fund management to make estimates and
assumptions that affect the reported amounts and disclosures in the financial
statements. Actual results could differ from those estimates. The following is
a summary of significant accounting policies:
 
Valuation of Investments - Securities which are listed on U.S. and foreign
stock exchanges are valued at the last sale price on the day the securities are
being 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 valued on the exchange designated by Mitchell Hutchins Asset
Management Inc. ("Mitchell Hutchins"), a wholly owned subsidiary of PaineWebber
Incorporated ("PaineWebber") and investment adviser and administrator of the
Fund, as the primary market. Securities traded in the over-the-counter ("OTC")
market and listed on the Nasdaq Stock Market ("Nasdaq") are valued at the last
trade price on Nasdaq prior to the time of valuation; other OTC securities are
valued at the last bid price available in the OTC market prior to the time of
valuation. The amortized cost method of valuation is used to value short-term
debt instruments with sixty days or less remaining to maturity. Securities and
assets for which market quotations are not readily available (including
restricted securities subject
 
                                       9
<PAGE>
 
PAINEWEBBER
 
to limitations as to their sale) are valued at fair value as determined in good
faith by or under the direction of the Trust's board of trustees. All
investments quoted in foreign currencies will be valued daily in U.S. dollars
on the basis of the foreign currency exchange rates prevailing at the time such
valuation is determined by the Fund's custodian.
 
Foreign currency exchange rates are generally determined prior to the close of
the New York Stock Exchange ("NYSE"). Occasionally, events affecting the value
of foreign investments and such exchange rates occur between the time at which
they are determined and the close of the NYSE, which will not be reflected in
the computation of the Fund's net asset value. If events materially affecting
the value of such securities or currency exchange rates occurred during such
time period, the securities will be valued at their fair value as determined in
good faith by or under the direction of the Trust's board of trustees.
 
Repurchase Agreements - The Fund's custodian takes possession of the collateral
pledged for investments in repurchase agreements. The underlying collateral is
valued daily on a mark-to-market basis to ensure that the value, including
accrued interest, is at least equal to the repurchase price. In the event of
default of the obligation to repurchase, the Fund has the right to liquidate
the collateral and apply the proceeds in satisfaction of the obligation. Under
certain circumstances, in the event of default or bankruptcy by the other party
to the agreement, realization and/or retention of the collateral may be subject
to legal proceedings. The Fund occasionally participates in joint repurchase
agreement transactions with other funds managed by Mitchell Hutchins.
 
Investment Transactions and Investment Income - Investment transactions are
recorded on the trade date. Realized gains and losses from investment
transactions and foreign exchange transactions are calculated using the
identified cost method. Interest income is recorded on an accrual basis.
Discounts are accreted and premiums are amortized as adjustments to interest
income and the identified cost of investments.
 
Income, expenses (excluding class-specific expenses) and realized/unrealized
gains/losses are allocated proportionately to each class of shares based upon
the relative net asset value of outstanding shares (or the value of dividend-
eligible shares, as appropriate) of each class at the beginning of the day
(after adjusting for current capital share activity of the respective classes).
Class-specific expenses are charged directly to the applicable class of shares.
 
Foreign Currency Translation - The books and records of the Fund are maintained
in U.S. dollars. Foreign currency amounts are translated into U.S. dollars on
the following basis:
 
   (1) market value of investment securities, other assets and liabilities -
   at the exchange rates prevailing at the end of the period.
 
                                       10
<PAGE>
 
PAINEWEBBER
 
  (2) purchases and sales of investment securities, income and expenses - at
  the rates of exchange prevailing on the respective dates of such
  transactions.
 
Although the net assets and the market values of the Fund are presented at the
foreign exchange rates at the close of the period, the Fund does not generally
isolate the effect of fluctuations in foreign exchange rates from the effect of
the changes in market prices of securities. However, the Fund does isolate the
effect of fluctuations in foreign exchange rates when determining the gain or
loss upon the sale or maturity of foreign currency-denominated debt obligations
pursuant to federal income tax regulations.
 
Forward Foreign Currency Contracts - The Fund may enter into forward foreign
currency exchange contracts ("forward contracts") in connection with planned
purchases or sales of securities or to hedge the U.S. dollar value of portfolio
securities denominated in a particular currency.
 
The Fund has no specific limitation on the percentage of assets which may be
committed to such contracts. The Fund may enter into forward contracts or
maintain a net exposure to forward contracts only if (1) the consummation of
the contracts would not obligate the Fund to deliver an amount of foreign
currency in excess of the value of the position being hedged by such contracts
or (2) the Fund maintains cash, U.S. government securities or liquid, high-
grade debt securities in a segregated account in an amount not less than the
value of its total assets committed to the consummation of the forward
contracts and not covered as provided in (1) above, as marked-to-market daily.
 
Risks may arise upon entering into forward contracts from the potential
inability of counterparties to meet the terms of their forward contracts and
from unanticipated movements in the value of foreign currencies relative to the
U.S. dollar.
 
Fluctuations in the value of forward contracts are recorded for book purposes
as unrealized gains or losses by the Fund. Realized gains and losses include
net gains and losses recognized by the Fund on contracts which have matured.
 
 
Dividends and Distributions to Shareholders - Dividends and distributions to
shareholders are recorded on the ex-dividend date. The amount of dividends and
distributions are determined in accordance with federal income tax regulations
which may differ from generally accepted accounting principles. These
"book/tax" differences are either considered temporary or permanent in nature.
To the extent these differences are permanent in nature, such amounts are
reclassified within the capital accounts based on their federal tax-basis
treatment; temporary differences do not require reclassification.
 
CONCENTRATION OF RISK
 
Investing in securities of foreign issuers and currency transactions may
involve certain considerations and risks not typically associated with
investments in the
 
                                       11
<PAGE>
 
PAINEWEBBER

United States. These risks include revaluation of currencies, adverse
fluctuations in foreign currency values and possible adverse political, social
and economic developments, including those particular to a specific industry,
country or region, which could cause the securities and their markets to be
less liquid and prices more volatile than those of comparable U.S. companies
and U.S. government securities. These risks are greater with respect to
securities of issuers located in emerging market countries in which the Fund is
authorized to invest. The ability of the issuers of debt securities held by the
Fund to meet their obligations may be affected by economic and political
developments particular to a specific industry, country or region.
 
INVESTMENT ADVISER AND ADMINISTRATOR
 
The Trust's board of trustees has approved an Investment Advisory and
Administration Contract ("Advisory Contract") with Mitchell Hutchins, under
which Mitchell Hutchins serves as investment adviser and administrator of the
Fund. In accordance with the Advisory Contract, the Fund pays Mitchell Hutchins
an investment advisory and administration fee, which is accrued daily and paid
monthly, at the annual rate of 0.75% of the Fund's average daily net assets. At
May 31, 1996, the Fund owed Mitchell Hutchins $41,584 in investment advisory
and administration fees.
 
In compliance with applicable state securities laws, Mitchell Hutchins will
reimburse the Fund if and to the extent that the aggregate operating expenses
in any fiscal year, exclusive of taxes, distribution fees, interest, brokerage
fees and extraordinary expenses, exceed limitations imposed by various state
regulations. Currently, the most restrictive limitation applicable to the Fund
is 2.5% of the first $30 million of average daily net assets, 2.0% of the next
$70 million and 1.5% of any excess over $100 million. For the four months ended
May 31, 1996, no reimbursements were required pursuant to the above limitation
for the Fund.
 
DISTRIBUTION PLANS
 
Mitchell Hutchins is the distributor of the Fund's shares and has appointed
PaineWebber as the exclusive dealer for the sale of those shares. Under
separate plans of distribution pertaining to Class A, Class B and Class C
shares, the Fund pays Mitchell Hutchins monthly service fees at an annual rate
of 0.25% of the average daily net assets of Class A, Class B and Class C shares
and monthly distribution fees at an annual rate of 0.75% and 0.50% of the
average daily net assets of Class B shares and Class C shares, respectively. At
May 31, 1996, the Fund owed Mitchell Hutchins $45,824 in service and
distribution fees.
 
Mitchell Hutchins also receives the proceeds of the initial sales charges paid
by the shareholders upon the purchase of Class A shares and the contingent
deferred
 
                                       12
<PAGE>
 
PAINEWEBBER

sales charges paid by the shareholders upon certain redemptions of Class A,
Class B and Class C shares. Mitchell Hutchins has informed the Fund that for
the four months ended May 31, 1996, it earned $65,960 in sales charges.
 
TRANSFER AGENCY SERVICE FEES
 
The Fund pays PaineWebber an annual fee of $4.00 per active PaineWebber
shareholder account for certain services not provided by the Fund's transfer
agent. For these services for the four months ended May 31, 1996, PaineWebber
earned $5,926 in transfer agency service fees from the Fund. At May 31, 1996,
the Fund owed PaineWebber $1,447 for transfer agency service fees.
 
INVESTMENTS IN SECURITIES
 
For federal income tax purposes, the cost of securities owned at May 31, 1996
was substantially the same as the cost of securities for financial statement
purposes.
 
At May 31, 1996, the components of the net unrealized depreciation of
investments were as follows:
 
<TABLE>
<S>                                                                 <C>
Gross depreciation (investments having an excess of cost over val-
 ue)..............................................................  $(5,221,223)
Gross appreciation (investments having an excess of value over
 cost)............................................................    3,413,716
                                                                    -----------
Net unrealized depreciation of investments........................  $(1,807,507)
                                                                    ===========
</TABLE> 
 
For the four months ended May 31, 1996, total aggregate purchases and sales of
portfolio securities, excluding short-term securities, were as follows:
 
<TABLE>
<S>                                                                 <C>
Purchases.........................................................  $31,689,242
Sales.............................................................  $34,647,335
</TABLE>
 
FEDERAL INCOME TAX STATUS
 
The Fund intends to distribute all of its taxable income and to comply with the
other requirements of the Internal Revenue Code applicable to regulated
investment companies. Accordingly, no provision for federal income taxes is
required. In addition, by distributing during each calendar year substantially
all of its net investment income, capital gains and certain other amounts, if
any, the Fund intends not to be subject to a federal excise tax.
 
At January 31, 1996, the Fund had a capital loss carryforward of $7,661,389 of
which $5,396,301 will expire by January 31, 2003 and $2,265,088 will expire by
January 31, 2004. This loss carryforward is available as a reduction, to the
extent provided in the regulations, of future net realized capital gains. To
the extent that such losses are used to offset future net realized capital
gains, it is probable these gains will not be distributed.
 
                                       13
<PAGE>
 
PAINEWEBBER
 
In accordance with Treasury Regulations, the Fund has elected to defer realized
foreign currency losses of $154,749 and capital losses of $1,045,027 arising
after October 31, 1995. Such losses have been treated for tax purposes as
arising on February 1, 1996.
 
SHARES OF BENEFICIAL INTEREST
 
There is an unlimited amount of $0.001 par value shares of beneficial interest
authorized. Transactions in shares of beneficial interest were as follows:
 
<TABLE>
<CAPTION>
                               CLASS A                  CLASS B                  CLASS C
                         ---------------------  ------------------------  -----------------------
                          SHARES     AMOUNT       SHARES       AMOUNT       SHARES      AMOUNT
                         --------  -----------  ----------  ------------  ----------  -----------
<S>                      <C>       <C>          <C>         <C>           <C>         <C>
FOR THE FOUR MONTHS
 ENDED MAY 31, 1996:
Shares sold.............   51,271  $   457,308     201,204  $  1,789,463      38,167  $   339,832
Shares repurchased...... (132,884)  (1,184,507)   (447,424)   (3,971,146)   (242,137)  (2,149,259)
Shares converted from
 Class B to Class A.....   12,214      108,943     (12,227)     (108,943)        --           --
Dividends reinvested....   14,701      130,527      47,965       425,533      33,119      294,055
                         --------  -----------  ----------  ------------  ----------  -----------
Net decrease............  (54,698) $  (487,729)   (210,482) $ (1,865,093)   (170,851) $(1,515,372)
                         ========  ===========  ==========  ============  ==========  ===========
FOR THE YEAR ENDED
 JANUARY 31, 1996:
Shares sold.............  256,146  $ 2,287,348   1,219,370  $ 10,908,042     580,404  $ 5,189,623
Shares repurchased...... (566,713)  (5,056,417) (1,574,328)  (14,041,862) (1,046,861)  (9,346,077)
Shares converted from
 Class B to Class A.....   53,359      481,701     (53,416)     (481,701)        --           --
Dividends reinvested....   56,384      500,385     201,919     1,791,441     141,690    1,257,450
                         --------  -----------  ----------  ------------  ----------  -----------
Net decrease............ (200,824) $(1,786,983)   (206,455) $ (1,824,080)   (324,767) $(2,899,004)
                         ========  ===========  ==========  ============  ==========  ===========
</TABLE>
 
                                       14
<PAGE>
 
 
 
 
                      [This page intentionally left blank]
 
                                       15
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND
 
            FINANCIAL HIGHLIGHTS
 
            SELECTED DATA FOR A SHARE OF BENEFICIAL INTEREST OUTSTANDING
            THROUGHOUT EACH PERIOD IS PRESENTED BELOW:
 
<TABLE>
<CAPTION>
                                                     CLASS A
                                 -----------------------------------------------
                                   For the
                                 Four Months                    For the Period
                                    Ended         For the      February 7, 1994+
                                 May 31, 1996    Year Ended         through
                                 (unaudited)  January 31, 1996 January 31, 1995
                                 ------------ ---------------- -----------------
<S>                              <C>          <C>              <C>
Net asset value, beginning of
 period........................      $8.99          $8.60            $10.00
                                    ------         ------           -------
Net investment income..........       0.23           0.60              0.74
Net realized and unrealized
 gains (losses) from investment
 and foreign currency
 transactions..................      (0.08)          0.66             (1.49)
                                    ------         ------           -------
Net increase (decrease) from
 investment operations.........       0.15           1.26             (0.75)
                                    ------         ------           -------
Dividends from net investment
 income........................      (0.24)         (0.77)            (0.65)
Distributions from net realized
 gains from foreign currency
 transactions..................        --           (0.10)              --
                                    ------         ------           -------
Total dividends and
 distributions to shareholders.      (0.24)         (0.87)            (0.65)
                                    ------         ------           -------
Net asset value, end of period.      $8.90          $8.99             $8.60
                                    ======         ======           =======
Total investment return (1)....       1.67%         15.27%            (7.61)%
                                    ======         ======           =======
Ratios/Supplemental Data:
Net assets, end of period
 (000's).......................     $9,257         $9,841           $11,148
Expenses to average net assets.       1.98%*         1.74%             1.49%*
Net investment income to
 average net assets............       7.86%*         8.52%             8.06%*
Portfolio turnover rate........         50%            91%              117%
- ---------------------
</TABLE>
 +  Commencement of issuance of shares
 *  Annualized
**  Formerly Class D
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of the period, 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 each class would be lower if sales
    charges were included. Total investment return for periods of less than one
    year has not been annualized.
 
                                       16
<PAGE>
 
   PAINEWEBBER  STRATEGIC INCOME FUND

 
 
<TABLE>
<CAPTION>
                    CLASS B                                         CLASS C**
- ------------------------------------------------ -----------------------------------------------
  For the                                          For the
Four Months                     For the Period   Four Months                    For the Period
   Ended          For the      February 7, 1994+    Ended         For the      February 7, 1994+
May 31, 1996     Year Ended         through      May 31, 1996    Year Ended         through
(unaudited)   January 31, 1996 January 31, 1995  (unaudited)  January 31, 1996 January 31, 1995
- ------------  ---------------- ----------------- ------------ ---------------- -----------------
<S>           <C>              <C>               <C>          <C>              <C>
    $8.98           $8.60            $10.00          $8.98          $8.60            $10.00
  -------         -------           -------        -------        -------           -------
     0.21            0.54              0.66           0.21           0.55              0.69
    (0.09)           0.65             (1.47)         (0.08)          0.66             (1.48)
  -------         -------           -------        -------        -------           -------
     0.12            1.19             (0.81)          0.13           1.21             (0.79)
  -------         -------           -------        -------        -------           -------
    (0.21)          (0.71)            (0.59)         (0.22)         (0.73)            (0.61)
      --            (0.10)              --             --           (0.10)              --
  -------         -------           -------        -------        -------           -------
    (0.21)          (0.81)            (0.59)         (0.22)         (0.83)            (0.61)
  -------         -------           -------        -------        -------           -------
    $8.89           $8.98             $8.60          $8.89          $8.98             $8.60
  =======         =======           =======        =======        =======           =======
     1.42%          14.37%            (8.22)%         1.50%         14.63%            (8.02)%
  =======         =======           =======        =======        =======           =======
  $38,378         $40,653           $40,710        $17,522        $19,232           $21,208
     2.72%*          2.49%             2.24%*         2.47%*         2.24%             1.98%*
     7.11%*          7.77%             7.46%*         7.36%*         8.03%             7.62%*
       50%             91%              117%            50%            91%              117%
</TABLE>
 
                                       17
<PAGE>
 
PAINEWEBBER     STRATEGIC INCOME FUND

 
            SHAREHOLDER INFORMATION
 
            A Special Meeting of Shareholders was held on April 15, 1996, at
            which the following proposals were approved for the Fund:
 
PROPOSAL 1
- ----------
<TABLE>
<CAPTION>
                                              SHARES FOR AS
                                 SHARES VOTED A % OF TOTAL        SHARES
To vote for or against the           FOR      SHARES VOTED  WITHHOLD AUTHORITY
election of Trustees:            ------------ ------------- ------------------
<S>                              <C>          <C>           <C>
Margo N. Alexander..............  3,924,799      92.41%          322,369
Richard Q. Armstrong............  3,924,799      92.41%          322,369
E. Garrett Bewkes, Jr. .........  3,924,799      92.41%          322,369
Richard Burt....................  3,924,799      92.41%          322,369
Mary C. Farrell.................  3,924,799      92.41%          322,369
Meyer Feldberg..................  3,924,799      92.41%          322,369
George W. Gowen.................  3,924,799      92.41%          322,369
Frederic V. Malek...............  3,924,799      92.41%          322,369
Carl W. Schafer.................  3,924,799      92.41%          322,369
John R. Torell III..............  3,924,799      92.41%          322,369
</TABLE>
 
PROPOSAL 2
- ----------
 
To vote for or against the ratification of the selection of Price Waterhouse
LLP as the Fund's independent accountants for the fiscal year ending November
30, 1996:
 
<TABLE>
<CAPTION>
                             SHARES FOR AS SHARES
              SHARES VOTED   A % OF TOTAL   VOTED  SHARES
                   FOR       SHARES VOTED  AGAINST ABSTAIN
              ------------   ------------- ------- -------
              <S>            <C>           <C>     <C>
                3,907,085       91.99%      1,870  338,213
</TABLE>

PROPOSAL 3
- ----------
 
To vote for or against the following changes to the Fund's fundamental
investment restrictions and policies:
 
<TABLE>
<CAPTION>
                                                   SHARES FOR AS SHARES
                                      SHARES VOTED A % OF TOTAL   VOTED  SHARES
                                          FOR      SHARES VOTED  AGAINST ABSTAIN
                                      ------------ ------------- ------- -------
<S>                                   <C>          <C>           <C>     <C>
Modification of fundamental
restriction on concentration........   3,808,497      89.67%     63,898  374,773
Modification of fundamental
restriction on senior securities and
Borrowing...........................   3,808,497      89.67%     63,898  374,773
Modification of fundamental
restriction on making loans.........   3,808,497      89.67%     63,898  374,773
Modification of fundamental
restriction on underwriting
securities..........................   3,808,497      89.67%     63,898  374,773
Modification of fundamental
restriction on real estate
investments.........................   3,808,497      89.67%     63,898  374,773
Modification of fundamental
restriction on investing in
commodities.........................   3,808,497      89.67%     63,898  374,773
Elimination of fundamental
restriction on margin transactions..   3,808,497      89.67%     63,898  374,773
Elimination of fundamental
restriction on short sales..........   3,808,497      89.67%     63,898  374,773
Elimination of fundamental
restriction on investments in oil,
gas and mineral leases and programs.   3,808,497      89.67%     63,898  374,773
- ---------------------
</TABLE>
(Broker non-votes and abstentions are included within the "Shares Withhold
Authority" and "Shares Abstain" totals.)
 
                                       18


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