BLK SUBSIDIARY INC
N-30D, 1999-08-27
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================================================================================
BLK SUBSIDIARY, INC.
PORTFOLIO OF INVESTMENTS
JUNE 30, 1999
================================================================================
             PRINCIPAL
 RATING*      AMOUNT                                               VALUE
(UNAUDITED)   (000)              DESCRIPTION                      (NOTE 1)
- --------------------------------------------------------------------------------
                       LONG-TERM INVESTMENTS--149.6%
                       MORTGAGE PASS-THROUGHS--18.9%
                       Federal Home Loan Mortgage Corp.,
            $ 22,438     6.50%, 4/1/28 - 7/1/29 ..............  $ 21,659,998
                       Federal National Mortgage
                         Association,
             152,870+    6.50%, 6/1/23 - 6/1/29 ..............   147,315,647
               7,000     7.00%, (TBA) ........................     6,949,687
              15,243++   7.00%, 2/1/24 - 11/1/28 .............    15,070,625
                                                                ------------
                                                                 190,995,957
                                                                ------------

                       MULTIPLE CLASS MORTGAGE
                       PASS-THROUGHS--4.2%
AAA              233   Collateralized Mortgage
                         Securities Corp.,
                         Ser. F, Class F-4-A, 11/1/15 ........       241,908
                       Federal Home Loan Mortgage Corp.,
                         Multiclass Mortgage
                         Participation Certificates,
                 314     Ser. 1563, Class 1563-S,
                           10/15/07, (ARM) ...................       319,389
                 396     Ser. 1563, Class 1563-SB,
                           8/15/08, (ARM) ....................       392,330
               1,471     Ser. 1592, Class 1592-NE
                           12/15/22, (ARM) ...................     1,419,023
               1,066     Ser. 1606, Class 1606-SB,
                           11/15/08, (ARM) ...................     1,079,271
               2,800     Ser. 1617, Class 1617-EB,
                           9/15/23, (ARM) ....................     2,662,334
                 142     Ser. 1663, Class 1663-A,
                           7/15/23, (ARM) ....................       138,802
               3,342     Ser. 1671, Class 1671-KB,
                           2/15/24, (ARM) ....................     3,334,359
                 485     Ser. 1686, Class 1686-PK,
                           4/15/23 ...........................       478,915
                       Federal National Mortgage Association,
                         REMIC Pass-Through Certificates,
              11,850     Trust 1992-43, Class 43-E,
                           4/25/22 ...........................    11,956,829
               1,500     Trust 1993-G17, Class G17-SH,
                           4/25/23, (ARM) ....................     1,280,280
                 266     Trust 1993-117, Class 117-S,
                           7/25/08, (ARM) ....................       257,940
               2,361     Trust 1993-178, Class 178-SC,
                           9/25/23, (ARM) ....................     2,354,306
               2,752     Trust 1993-196, Class 196-SM,
                           10/25/08, (ARM) ...................     2,457,162
               1,831     Trust 1993-214, Class 214-SO,
                           12/25/08, (ARM) ...................     1,797,261
               7,081     Trust 1996-T6,
                           Class T6-C, 2/26/01 ...............     7,087,502
               1,902     Trust 1996-T6,
                           Class T6-D, 2/26/01 ...............     1,904,252
               3,220     Trust 1998-38, Class 38-S,
                           1/8/12 (ARM) ......................     3,333,189
                                                                ------------
                                                                  42,495,052
                                                                ------------
                       INTEREST ONLY MORTGAGE-BACKED
                       SECURITIES--4.2%
AAA               22   Collateralized Mortgage Securities Corp.,
                         Ser. 1991-9, Class M,
                         11/20/21 ............................       324,253
AAA          124,576   Credit Suisse First Boston Mortgage
                         Securities Corp., Ser. 1997-C1,
                         Class AX, 6/20/29** .................    11,314,263
                       Federal Home Loan Mortgage Corp.,
                         Multiclass Mortgage
                         Participation Certificate,
               9,369     Ser. G-3, Class G-3-S,
                           4/25/19 ...........................       260,446
              10,373     Ser. G-30, Class G-30-J,
                           2/25/23 ...........................     1,453,133
               7,813     Ser. G-32, Class G-32-PT,
                           2/25/19 ...........................       761,547
                  37     Ser. 113, Class 113-N,
                           5/15/21 ...........................     1,100,583
                   7     Ser. 1125, Class 1125-F,
                           8/15/21 ...........................       182,932
                   3     Ser. 1360, Class 1360-PT
                           12/15/17 ..........................           305
                  27     Ser. 1378, Class 1378-DA,
                           1/15/18 ...........................        94,404
                  16     Ser. 1388, Class 1388-G,
                           5/15/06 ...........................       221,005
                  16     Ser. 1404, Class 1404-E,
                           1/15/06 ...........................       126,399
              10,507     Ser. 1621, Class 1621-SJ,
                           10/15/20 ..........................       298,618
                 313     Ser. 1970, Class 1970-PN,
                           6/15/15 ...........................         2,225
              30,859     Ser. 2056, Class 2056-IB,
                           4/15/21 ...........................     3,490,924
                       Federal National Mortgage Association,
                         REMIC Pass-Through Certificates,
                   9     Trust 1990-76, Class 76-N,
                           7/25/20 ...........................        22,784
                   5     Trust 1991-29, Class 29-J,
                           4/25/21 ...........................       170,458


                       See Notes to Financial Statements.

                                       1


<PAGE>

================================================================================
             PRINCIPAL
 RATING*      AMOUNT                                               VALUE
(UNAUDITED)   (000)              DESCRIPTION                      (NOTE 1)
- --------------------------------------------------------------------------------


                       INTEREST ONLY MORTGAGE-BACKED
                       SECURITIES--(CONT'D)
                       Federal National Mortgage Association,
                         REMIC Pass-Through Certificates,
                $ 15     Trust 1991-80, Class 80-Q,
                           7/25/21 ...........................     $ 426,656
               8,160     Trust 1992-G45, Class G45-2,
                           8/25/22 ...........................     1,347,662
               4,657     Trust 1993-141, Class 141-PW,
                           6/25/18 ...........................       306,810
               5,705     Trust 1997-37, Class 37-SX,
                           8/18/18 ...........................        20,848
               5,031   Government National Mortgage
                         Association, Trust 1994-1,
                         Class 1-PL, 6/16/24 .................       830,130
                       Merrill Lynch Mortgage Investments, Inc.,
AAA           67,350     Ser. 1997-2, Class 2-C,
                           12/10/29 ..........................     4,604,850
Aaa           48,039     Ser. 1998-2, Class 2-C,
                           2/15/30 ...........................     3,627,779
AAA            3,346   Merrill Lynch Trust,
                         Ser. 43, Class 43-F, 8/27/15 ........       217,510
                       Morgan Stanley Capital Inc.,
AAA          113,661     Ser. 1998-HF1, Class HF1-X,
                           2/15/18 ...........................     6,813,427
AAA           99,687     Ser. 1998-WF2, Class WF2-X,
                           4/15/23 ...........................     4,302,854
                                                                 -----------
                                                                  42,322,805
                                                                 -----------

                       PRINCIPAL ONLY MORTGAGE-BACKED
                       SECURITIES--2.4%
                       Federal Home Loan Mortgage Corp.,
                 447     Ser. 1338, Class 1338-Q,
                           8/15/07 ...........................       389,298
               5,232     Ser. 1662, Class 1662-PO,
                           1/15/09 ...........................     4,200,021
                       Federal National Mortgage Association,
                         REMIC Pass-Through Certificates,
               1,823     Trust 5, Class 5-1, 9/25/07 .........     1,533,763
                 767     Trust 60, Class 60-1, 1/1/19 ........       621,543
                 257     Trust 1991-G44, Class G44-H,
                           11/25/21 ..........................       246,150
              13,272     Trust 1993-257, Class 257-A,
                           6/25/23 ...........................    12,514,264
               5,027     Trust 1994-54, Class 54-B,
                           11/25/23 ..........................     4,777,555
              19,261     Trust 1998-3, Class 3-SC,
                           2/18/28 ...........................       261,826
                                                                 -----------
                                                                  24,544,420
                                                                 -----------
                       COMMERCIAL MORTGAGE-BACKED
                       SECURITIES--4.2%
BBB          $ 4,150   CBA Mortgage Corp.
                         Ser. 1993-C1, Class D, 6.67%,
                         12/25/03 ............................     4,053,621
AA+            2,256   Central Life Assurance Co.,
                         Ser. 1994-1, Class A2,
                          8.90%, 12/13/20 ....................     2,285,066
AAA            5,200   PaineWebber Mortgage Acceptance
                         Corp. IV, Ser. 1995-M1,
                         Class A, 6.70%, 1/15/07** ...........     5,215,561
                       Resolution Trust Corp.,
AA             8,050     Ser. 1994-C1, Class C,
                          8.00%, 6/25/26 .............,.......     8,050,000
A              5,462     Ser. 1994-C2, Class D,
                          8.00%, 4/25/25 .....................     5,432,749
AA             4,315   Salomon Brothers Mortgage
                         Acceptance Corp.,
                         Ser. 1997-TZH, Class A1,
                         7.15%, 3/25/25** ....................     4,383,619
AAA           12,800   Structured Asset Securities Corp.,
                         Ser. 1996-CFL, Class B,
                         6.30%, 2/25/28 ......................    12,883,944
                                                                 -----------
                                                                  42,304,560
                                                                 -----------

                       ASSET-BACKED SECURITIES--12.7%
NR             2,208   Amresco Securitized Interest,
                         Ser. 1996-1, Class A,
                         8.10%, 4/26/26** ....................     2,119,548
Aaa           22,286   Brazos Student Finance Corp.,
                         Ser. 1998-A, Class A1,
                         5.78%, 6/1/06 .......................    22,233,908
                       Broad Index Secured Trust Offering,
NR            10,000     Ser. 1998-4, Class 9,
                           6.924%, 9/9/01 ....................     9,957,000
Baa2          10,000     Ser. 1998-101, Class 10,
                           6.58%, 3/26/01** ..................     9,834,687
AAA            9,036   Chase Manhattan Grantor Trust,
                         Ser. 1996-B, Class A,
                         6.61%, 9/15/06 ......................     9,075,792
AAA           35,000@  Citibank Credit Card Trust,
                         Ser. 1996-1, CLASS A,
                         5.79%, 2/7/03 .......................    31,806,250
NR             5,905   Global Rated Eligible Asset Trust,
                         Ser. 1998-1, Class A,
                         7.33%, 9/15/07**/*** ................     3,217,522
AAA              787   NationsBank Auto Grantor Trust,
                         Ser. 1995-A, Class A,
                         5.85%, 6/15/02 ......................       787,640
A             10,000   Newcourt Equipment Trust,
                         Ser. 1998-1, Class B,
                         5.97%, 4/20/05 ......................     9,946,559

                       See Notes to Financial Statements.

                                       2
<PAGE>


================================================================================
             PRINCIPAL
 RATING*      AMOUNT                                               VALUE
(UNAUDITED)   (000)              DESCRIPTION                      (NOTE 1)
- --------------------------------------------------------------------------------


                       ASSET-BACKED SECURITIES--(CONT'D)
AA          $ 14,426   Pegasus Aviation Lease Securitization,
                         Ser. 1999-1A,  Class A1,
                         6.30%, 3/25/29** ....................  $ 14,101,794
AAA            5,750   Standard Credit Card Master Trust,
                         Ser. 1995-3, Class A,
                         7.85%, 2/7/02 .......................     5,852,556
                       Structured Mortgage Asset
                         Residential Trust,**/***
NR             9,989     Ser. 1997-2, 8.24%, 3/15/06 .........     4,779,870
NR            11,016     Ser. 1997-3, 8.57%, 4/15/06 .........     4,900,007
                                                                ------------
                                                                 128,613,133
                                                                ------------

                       U.S. GOVERNMENT AND
                       AGENCY SECURITIES--38.2%
                       U.S. Treasury Bonds,
              72,835     3.63%, 4/15/28 (TIPS) ...............    68,726,038
              10,000     5.25%, 11/15/28 - 2/15/29 ...........     8,864,100
              35,000     6.13%, 11/15/27 .....................    34,764,800
                       U.S. Treasury Notes,
             100,000++   4.25%, 11/15/03 .....................    94,422,000
             150,000++   4.50%, 9/30/00 ......................   148,359,000
              30,000+    6.50%, 10/15/06 .....................    30,975,000
                                                                ------------
                                                                 386,110,938
                                                                ------------

                       TAXABLE ZERO
                       COUPON BONDS--15.9%
                       Government Trust Certificates,
              35,925     Ser. 1-D, 11/15/00 ..................    33,301,397
              34,630     Ser. 2-F, 11/15/00 ..................    32,100,971
             105,000++ U.S. Treasury Receipt,
                         5/15/01 .............................    94,805,550
                                                                ------------
                                                                 160,207,918
                                                                ------------

                       TAXABLE MUNICIPAL BONDS--3.2%
AAA            1,000   Kern County California
                         Pension Obligation,
                         6.27%, 8/15/01** ....................     1,005,000
AAA            2,035   Long Beach California
                         Pension Obligation,
                         6.45%, 9/1/01 .......................     2,052,623
AAA            6,000   Los Angeles County California
                         Pension Obligation,
                         Ser. D, 6.38%, 6/30/01 ..............     6,040,860
NR             5,735   Massachusetts Housing Fin. Agency,
                         Ser. 1991-B, 6.85%, 10/1/20 .........     5,192,698
                       New York City G.O., Ser 1,
A-             5,000     6.40%, 3/15/01 ......................     5,012,100
A-             5,000     7.24%, 4/15/01 ......................     5,082,100
Baa1           1,000   New York State Environmental
                         Facility Auth., Ser. A,
                         6.62%, 3/15/01 ......................     1,003,510
BBB+           3,345    New York State Housing
                         Finance Agency,
                         Ser. B, 7.14%, 3/15/02 ..............     3,406,314
BBB+           2,000   New York State Urban
                         Developement Corp.,
                         Ser. B, 6.90%, 4/1/01 ...............     2,016,240
AA             1,000   St. Josephs Health Systems California,
                         Ser. A, 7.02%, 7/1/01 ...............     1,016,210
                                                                ------------
                                                                  31,827,655
                                                                ------------

                       CORPORATE BONDS--35.0%
                       FINANCE & BANKING--21.0%
BBB+          10,000   AT&T Corporation,
                         5.74%, 6/30/01 ......................     9,769,500
A3             1,300@  Amsouth Bancorporation,
                         6.75%, 11/1/25 ......................     1,285,999
A-             5,000   Aristar Inc.,
                         7.25%, 6/15/01 ......................     5,071,300
                       Associates Corp.,
AA-            5,000     6.68%, 7/25/00 ......................     5,036,450
AA-            5,000     7.46%, 3/28/00 ......................     5,058,100
Baa2           9,000   Capital One Bank Medium Term,
                         6.26%, 5/7/01 .......................     8,933,760
A-            15,000   Donaldson, Lufkin & Jenrette,
                         5.63%, 2/15/16 ......................    14,861,850
A1             5,700   First Union Corp.
                         6.63%, 6/15/00 ......................     5,742,655
BBB-          10,000   Franchise Finance Corp.,
                         7.00%, 11/30/00 .....................     9,955,200
A+             6,750   Goldman Sachs Group LP,
                         6.20%, 12/15/00** ...................     6,737,310
A3             5,000   Great Western Finance Corp.,
                         6.38%, 7/1/00 .......................     5,015,450
A              4,000   Household Financial Corp.,
                         7.45%, 4/1/00 .......................     4,030,520
                       Lehman Brothers Holdings Inc.,
A              8,000     6.75%, 9/24/01 ......................     7,986,962
A             10,000     7.25%, 4/15/03 ......................    10,035,752
AA-           10,715   Merrill Lynch & Company,. Inc.,
                         5.75%, 11/02/02 .....................    10,496,317
Aa3            3,800   Morgan Stanley Inc.,
                         5.75%, 2/15/01 ......................     3,777,846
                       Nations Bank Corp.,
Aa2           10,000     7.00%, 9/15/01 ......................    10,152,500
BBB+          10,000   PaineWebber Group Inc.,
                         5.81%, 6/8/01 .......................     9,831,250
A3            10,000   Popular Inc.,
                         6.20%, 4/30/01 ......................     9,905,300
A+             5,000   Prudential Funding Corp.,
                         6.00%, 5/11/01** ....................     4,963,450
BBB+           6,590   Ryder Systems Inc.,
                         9.25%, 5/15/01 ......................     6,891,209





                       See Notes to Financial Statements.

                                        3


<PAGE>


================================================================================
             PRINCIPAL
 RATING*      AMOUNT                                               VALUE
(UNAUDITED)   (000)              DESCRIPTION                      (NOTE 1)
- --------------------------------------------------------------------------------


                       FINANCE & BANKING--(CONT'D)
                       Salomon Smith Barney Holdings Inc.,
Aa3          $13,000     5.88%, 2/1/01 ...................... $   12,930,190
Aa3           12,500     6.63%, 11/30/00 ....................     12,586,625
Aa3            3,600     7.00%, 5/15/00 .....................      3,636,216
                       Security Pacific Corp.,
Aa3            1,925     11.00%, 3/1/01 .....................      2,068,855
A-            15,000   Transamerica Finance Corp.,
                         6.75%, 6/1/00 ......................     15,099,150
Baa2           5,500   Trinet Corporate Realty Trust,
                         7.30%, 5/15/01 .....................      5,453,195
A2             5,000   Union Planters National Bank,
                         6.76%, 10/30/01 ....................      5,028,750
                                                              --------------
                                                                 212,341,661
                                                              --------------

                       INDUSTRIALS--4.8%
BBB           10,000   Amerco Inc.,
                         7.49%, 9/18/01 .....................     10,166,800
BBB+           7,500   Erac Usa Finance Co.,
                         7.00%, 6/15/00** ...................      7,548,612
A1            10,000   Ford Motor Credit Co.,
                         6.18%, 12/27/01 ....................      9,980,400
A-             2,505   ICI Wilmington Inc.,
                         8.75%, 5/1/01 ......................      2,591,798
A2               911   Kern River Funding Corp.,
                         6.42%, 3/31/01 .....................        911,787
                       Sears Roebuck & Co.,
A2             4,250     6.50%, 6/15/00 .....................      4,271,675
A2             5,000     7.29%, 4/24/00 .....................      5,049,200
Baa1           3,500   Tenneco Credit Corp.,
                         8.08%, 10/1/02 .....................      3,599,995
BBB+           4,550   WMX Technologies Inc.,
                         7.13%, 6/15/01 .....................      4,605,373
                                                              --------------
                                                                  48,725,640
                                                              --------------

                       UTILITIES--1.4%
BBB            9,000   Pacificorp Holdings Inc.,
                         6.75%, 4/1/01** ....................      9,047,700
BBB+           5,000   Potomac Capital Investment Corp.,
                         6.73%, 8/9/00** ....................      5,003,550
                                                              --------------
                                                                  14,051,250
                                                              --------------

                       YANKEE--7.8%
                       African Development Bank,
Aa1            5,000     7.75%, 12/15/01 ....................      5,182,400
Aaa            3,350     8.63%, 5/1/01 ......................      3,478,235
NR            12,059   Banamex Remittance Master Trust,
                         Ser. 1996, 7.57%, 1/1/01** .........     12,036,284
BBB-          15,000   Empresa Electric Guacolda,
                         7.60%, 4/30/01** ...................     14,250,450
A+            18,000   Quebec (Province of),
                         9.13%, 8/22/01 .....................     18,922,500
BBB-           3,000   Republic of Colombia,
                         8.00%, 6/14/01 .....................      2,910,000
BBB-          10,000   Telecom Argentina Structure France,
                         9.75%, 7/12/01** ...................      9,987,500
BBB-          12,000   Transpatadora de Gas,
                         10.25%, 4/25/01 ....................     12,060,000
                                                              --------------
                                                                  78,827,369
                                                              --------------
                       Total corporate bonds ................    353,945,920
                                                              --------------

                       STRIPPED MONEY MARKET
                       INSTRUMENTS--10.5%
AAA           65,000   Aim Prime Money Market Portfolio,
                         zero coupon, 1/2/01 ................     59,923,370
A             50,000   Goldman Sachs Money Market,
                         zero coupon, 1/2/01 ................     46,081,700
                                                              --------------
                                                                 106,005,070
                                                              --------------

               NOTIONAL
                AMOUNT
                 (000)
                -------
                       CALL OPTIONS PURCHASED--0.2%
                       Interest Rate Swap,
             200,000     5.60% over 3 month LIBOR,
                           expires 8/7/00 ...................      1,072,620
             103,000     5.85% over 3 month LIBOR,
                           expires 8/7/00 ...................        853,793
                                                              --------------
                                                                   1,926,413
                                                              --------------
                       Total long-term investments
                         (cost $1,546,386,569) ..............  1,511,299,841
                                                              --------------


              PRINCIPAL
               AMOUNT
                (000)
               -------
                       SHORT-TERM INVESTMENT--0.1%
                       DISCOUNT NOTE--0.1%
               1,320   Federal Home Loan Mortgage Corp.,
                         4.60%, 7/1/99 (cost 1,320,000) .....      1,320,000
                                                                   ---------

                       Total investments before call
                         option written and investment
                         sold short--149.7%
                         (cost $1,547,706,569) ..............  1,512,619,841
                                                              --------------
               NOTIONAL
                AMOUNT
                 (000)
                -------
                       CALL OPTION WRITTEN--0.0%
            (320,000)  Interest Rate Swap,
                        3 month LIBOR over 5.25%,
                        expires 8/10/99
                        (premium received $1,960,000) .......           (704)
                                                              -------------



                       See Notes to Financial Statements.

                                        4


<PAGE>


================================================================================
             PRINCIPAL
 RATING*      AMOUNT                                               VALUE
(UNAUDITED)   (000)              DESCRIPTION                      (NOTE 1)
- --------------------------------------------------------------------------------

                       INVESTMENT SOLD SHORT--(6.6%)
           $ (74,000)  U.S. Treasury Bonds,
                         5.25%, 2/15/29
                         (proceeds $65,534,063) .............   $ (66,484,560)
                                                                -------------
                       Total investments, net of call option
                         written and investment sold
                         short--143.1% ......................   1,446,134,577

                       Liabilities in excess of
                         other assets--(43.1)% ..............    (435,725,226)
                                                               --------------

                       NET ASSETS--100% .....................  $1,010,409,351
                                                               ==============



- ---------------
   * Using the higher of Standard & Poor's, Moody's or Fitch's rating.
  ** Security restricted as to resale.
 *** Illiquid securities representing .89% of portfolio assets.
   + Partial principal amount pledged as collateral for reverse repurchase
     agreements. See Note 4.
  ++ Full  principal  amount   pledged  as  collateral  for  reverse  repurchase
     agreements. See Note 4.
  @  Partial  principal  amount  pledged  as  collateral  for  financial futures
     transactions.

- -----------------------------------------------------------------------
    ARM    -- ADJUSTABLE RATE MORTGAGE.
    G.O.   -- General Obligation Bond.
    LIBOR  -- London InterBank Offer Rate.
    REMIC  -- Real Estate Mortgage Investment Conduit.
    TBA    -- To Be Allocated.
    TIPS   -- Treasury Inflation Protected Security.
- -----------------------------------------------------------------------

                       See Notes to Financial Statements.

                                       5


<PAGE>


================================================================================
BLK SUBSIDIARY, INC.
STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1999
================================================================================

ASSETS
Investments, at value (cost $1,547,706,569)
   (Note 1) ...........................................   $1,512,619,841
Cash ..................................................            2,697
Deposits with brokers as collateral for
   investments sold short (Note 1) ....................       67,062,500
Interest receivable ...................................       13,607,343
Receivable for investments sold .......................          292,511
Unrealized appreciation on interest rate swaps
   (Notes 1 & 3) ......................................           87,453
                                                          --------------
                                                           1,593,672,345
                                                          --------------
LIABILITIES
Reverse repurchase agreements (Note 4) ................      482,594,346
Payable for investments purchased .....................       19,594,544
Investments sold short, at value
   (proceeds $65,534,063) (Note 1) ....................       66,484,560
Interest rate caps, at value
   (amortized premium $127,498) (Note 1) ..............          802,647
Call option written, at value
   (premium received $1,960,000) (Note 1) .............              704
Due to broker-variation margin ........................        1,220,171
Due to Parent (Note 2) ................................       12,566,022
                                                          --------------
                                                             583,262,994
                                                          --------------

NET ASSETS ............................................   $1,010,409,351
                                                          ==============

Net assets were comprised of:
   Common stock, at par (Note 5) ......................   $   1,420,106
   Paid-in capital in excess of par ...................    1,012,807,310
                                                          --------------
                                                           1,014,227,416
   Undistributed net investment income ................       37,414,069
   Accumulated net realized loss ......................       (4,563,553)
   Net unrealized depreciation ........................      (36,668,581)
                                                          --------------
   Net assets, June 30, 1999 ..........................   $1,010,409,351
                                                          ==============

Net asset value per share:
   ($1,010,409,351 / 142,010,583 shares of
   common stock issued and outstanding) ...............           $ 7.12
                                                                  ======



================================================================================
BLK SUBSIDIARY, INC.
STATEMENT OF OPERATIONS
FOR THE YEAR ENDED JUNE 30, 1999
================================================================================

NET INVESTMENT INCOME
Income
   Interest (net of premium amortization
     of $2,159,055 and interest expense of
     $19,323,548) .....................................     $ 66,179,209
                                                            ------------

Operating expenses
   Investment advisory ................................        4,272,916
   Administration .....................................        1,068,229
   Custodian ..........................................          243,500
   Audit ..............................................          106,500
   Directors ..........................................           58,000
   Legal ..............................................           10,000
   Miscellaneous ......................................          221,388
                                                            ------------
     Total operating expenses .........................        5,980,533
                                                            ------------
Net investment income before excise tax ...............       60,198,676
   Excise tax .........................................        1,924,205
                                                            ------------
Net investment income .................................       58,274,471
                                                            ------------

REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS (NOTE 3)
Net realized gain (loss) on:
  Investments .........................................        1,008,879
  Short sales .........................................       (3,222,490)
  Options .............................................        3,764,175
  Swaps ...............................................          191,185
  Futures .............................................       (4,892,639)
                                                            ------------
                                                              (3,150,890)
                                                            ------------
Net change in unrealized appreciation (depreciation) on:
  Investments .........................................      (35,738,231)
  Options written .....................................          766,760
  Short sales .........................................         (950,497)
  Swaps ...............................................          978,236
  Interest rate caps ..................................        1,181,103
  Futures .............................................         (799,288)
                                                            ------------
                                                             (34,561,917)
                                                            ------------

Net loss on investments ...............................      (37,712,807)
                                                            ------------

NET INCREASE IN NET ASSETS
   RESULTING FROM OPERATIONS ..........................     $ 20,561,664
                                                            ============

                       See Notes to Financial Statements.

                                        6
<PAGE>


================================================================================
BLK SUBSIDIARY, INC.
STATEMENT OF CASH FLOWS
FOR THE YEAR ENDED JUNE 30, 1999
================================================================================

RECONCILIATION OF NET INCREASE IN NET ASSETS
  RESULTING FROM OPERATIONS TO NET CASH FLOWS
  USED FOR OPERATING ACTIVITIES
Net increase in net assets resulting
  from operations .......................................  $  20,561,664
                                                           -------------
Increase in investments .................................   (427,677,231)
Net realized loss .......................................      3,150,890
Increase in unrealized depreciation .....................     34,561,917
Increase in interest receivable .........................     (3,189,031)
Increase in deposits with brokers .......................    (65,697,500)
Increase in unrealized appreciation on
  interest rate swaps ...................................       (978,236)
Decrease in receivable for investments sold .............      1,890,958
Decrease in options written .............................     (2,908,017)
Decrease in payable for investments purchased ...........     (2,809,040)
Decrease in interest rate caps ..........................     (2,344,013)
Increase in broker-variation margin .....................        783,397
Increase in payable for investments sold short ..........     66,484,560
Increase in due to Parent ...............................      7,850,543
                                                          --------------
Total adjustments .......................................   (390,880,803)
                                                          --------------
Net cash flows used for operating activities ............ $ (370,319,139)
                                                          ==============

INCREASE (DECREASE) IN CASH
Net cash flows used for operating activities ............ $ (370,319,139)
                                                          --------------
Cash flows provided by financing activities:
  Increase in reverse repurchase agreements .............    430,929,846
  Cash dividends paid ...................................    (60,815,696)
                                                          --------------
Net cash flows provided by financing activities .........    370,114,150
                                                          --------------
Net decrease in cash ....................................       (204,989)
Cash at beginning of year ...............................        207,686
                                                          --------------
Cash at end of year ..................................... $        2,697
                                                          ==============



================================================================================
BLK SUBSIDIARY, INC.
STATEMENTS OF CHANGES
IN NET ASSETS
================================================================================
                                                 FOR THE       FOR THE PERIOD
                                               YEAR ENDED    OCTOBER 17, 1997*
                                             JUNE 30, 1999   TO JUNE 30, 1998
                                           ---------------- --------------------
INCREASE (DECREASE) IN
  IN NET ASSETS
Operations:
  Net investment income .................. $   58,274,471$   $   39,955,294
  Net realized loss on
     investments .........................     (3,150,890)       (1,412,663)
  Net change in unrealized
     appreciation/
     (depreciation) on
     investments .........................    (34,561,917)       (2,106,664)
                                           --------------    --------------

   Net increase in net assets
      resulting from
      operations .........................     20,561,664        36,435,967

Dividends from Net Investment
   Income ................................    (60,815,696)               --

Transfer of assets
  from BlackRock 2001
  Term Trust Inc. in
  exchange for
  shares issued ..........................             --     1,014,227,416
                                           --------------    --------------
Total increase (decrease) ................    (40,254,032)    1,050,663,383

NET ASSETS
Beginning of period ......................  1,050,663,383                --
                                           --------------    --------------
End of period ............................ $1,010,409,351    $1,050,663,383
                                           ==============    ==============


- ---------------
*Commencement of investment operations.


                       See Notes to Financial Statements.

                                        7


<PAGE>


================================================================================
BLK SUBSIDIARY, INC.
FINANCIAL HIGHLIGHTS
================================================================================
<TABLE>
<CAPTION>

                                                                                                        FOR THE PERIOD
                                                                                                       OCTOBER 17, 1997*
                                                                                       YEAR ENDED           THROUGH
                                                                                      JUNE 30, 1999      JUNE 30, 1998
                                                                                    ----------------   ----------------
<S>                                                                                     <C>             <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of year ..........................................         $     7.40      $     7.14
                                                                                        ----------      ----------
  Net investment income (net of interest expense of $0.14
     and $0.12, respectively) .................................................               0.41            0.28
  Net realized and unrealized gain (loss) .....................................              (0.26)          (0.02)
                                                                                        ----------      ----------
Net increase from investment operations .......................................               0.15            0.26
                                                                                        ----------      ----------
Dividends from net investment income ..........................................              (0.43)             --
                                                                                        ----------      ----------
Net asset value, end of year ..................................................         $     7.12      $     7.40
                                                                                        ==========      ==========
TOTAL INVESTMENT RETURN:+ .....................................................               2.03%           3.64%
RATIOS TO AVERAGE NET ASSETS:
Operating expenses** ..........................................................               0.56%           0.56%++
Net investment income .........................................................               5.47%           5.54%++

SUPPLEMENTAL DATA:
Average net assets (in thousands) .............................................         $1,065,302      $1,024,887
Portfolio turnover ............................................................                148%            182%
Net assets, end of period (in thousands) ......................................         $1,010,409      $1,050,663
Reverse repurchase agreements outstanding, end of year (in thousands) .........         $  482,594      $   51,665
Asset coverage+++ .............................................................         $    3,094      $   21,336
</TABLE>

- -------------
   * Commencement of investment operations.
  ** The ratios of operating  expenses,  including interest expense,  to average
     net assets were 2.38% and 3.01%++,  respectively,  for the years  indicated
     above.  The ratios of operating  expenses,  including  interest expense and
     excise tax, to average net assets were 2.56% and 3.10%++, respectively, for
     the years indicated above.
   + This entity is not publicly traded and therefore total investment return is
     calculated  assuming a purchase  of common  stock at the  current net asset
     value on the first  day and a sale at the  current  net asset  value on the
     last day of each period  reported.  Dividends are assumed,  for purposes of
     this calculation, to be reinvested.  Total investment return for periods of
     less than one full year are not annualized.
  ++ Annualized.
 +++ Per $1,000 of reverse repurchase agreement outstanding.

The information  above represents the audited  operating  performance data for a
share of common stock outstanding,  total investment  return,  ratios to average
net  assets  and  other  supplemental  data  for  the  periods  indicated.  This
information has been determined based upon financial information provided in the
financial statements.








                       See Notes to Financial Statements.

                                       8


<PAGE>


================================================================================
BLK SUBSIDIARY, INC.
NOTES TO FINANCIAL STATEMENTS
================================================================================

NOTE 1. ORGANIZATION & ACCOUNTING POLICIES

BLK Subsidiary,  Inc. (the "Trust") was incorporated under the laws of the state
of Maryland on October 17,  1997,  and is a  diversified  closed-end  management
investment  company.  The Trust  was  incorporated  solely  for the  purpose  of
receiving all or a substantial  portion of the assets of The BlackRock 2001 Term
Trust Inc. ("BLK"),  incorporated under the laws of the State of Maryland and as
such, a wholly-owned  subsidiary of BLK. The Trust's investment  objective is to
manage a portfolio of investment  grade fixed income  securities while providing
cash  flow  definition  to BLK.  No  assurance  can be given  that  the  Trust's
investment objective will be achieved.

   The following is a summary of significant accounting policies followed by the
Trust.

SECURITIES VALUATION:  The Trust values mortgage-backed,  asset-backed and other
debt  securities,  interest rate swaps,  caps,  floors and  non-exchange  traded
options on the basis of current market quotations provided by dealers or pricing
services approved by the Trust's Board of Directors. In determining the value of
a particular security, pricing services may use certain information with respect
to transactions in such securities, quotations from dealers, market transactions
in comparable  securities,  various relationships observed in the market between
securities, and calculated yield measures based on valuation technology commonly
employed in the market for such securities.  Exchange-traded  options are valued
at their last sales price as of the close of options  trading on the  applicable
exchanges.  In the absence of a last sale,  options are valued at the average of
the quoted bid and asked prices as of the close of business.  A futures contract
is valued at the last sale price as of the close of the commodities  exchange on
which it trades unless the Trust's Board of Directors  determine that such price
does not  reflect  its fair  value,  in which case it will be valued at its fair
value as determined by the Trust's Board of Directors.  Any  securities or other
assets for which such current market  quotations  are not readily  available are
valued  at fair  market  value as  determined  in good  faith  under  procedures
established  by and under the  general  supervision  and  responsibility  of the
Trust's Board of Directors.

   Short-term securities which mature in 60 days or less are valued at amortized
cost,  if their  term to  maturity  from  date of  purchase  is 60 days or less.
Short-term securities with a term to maturity greater than 60 days from the date
of purchase are valued at current market quotations until maturity.

   In  connection  with  transactions  in  repurchase  agreements,  the  Trust's
custodian takes possession of the underlying collateral securities, the value of
which at least  equals  the  principal  amount  of the  repurchase  transaction,
including  accrued  interest.  To the  extent  that any  repurchase  transaction
exceeds one business day, the value of the collateral is  marked-to-market  on a
daily basis to ensure the adequacy of the collateral. If the seller defaults and
the value of the collateral declines or if bankruptcy  proceedings are commenced
with respect to the seller of the security, realization of the collateral by the
Trust may be delayed or limited.

OPTION  SELLING/PURCHASING:  When the Trust  sells or  purchases  an option,  an
amount  equal to the  premium  received  or paid by the Trust is  recorded  as a
liability or an asset and is  subsequently  adjusted to the current market value
of the option  written or purchased.  Premiums  received or paid from writing or
purchasing  options  which  expire  unexercised  are treated by the Trust on the
expiration date as realized gains or losses.  The difference between the premium
and the  amount  paid or  received  on  effecting  a  closing  purchase  or sale
transaction, including brokerage commissions, is also treated as a realized gain
or loss. If an option is exercised, the premium paid or received is added to the
proceeds from the sale or cost of the purchase in determining  whether the Trust
has realized a gain or a loss on investment  transactions.  The Trust, as writer
of an option, may have no control over whether the underlying  securities may be
sold  (call) or  purchased  (put) and as a result  bears the  market  risk of an
unfavorable change in the price of the security underlying the written option.

   Options, when used by the Trust, help in maintaining a
targeted duration.  Duration is a measure of the price sensitivity of a security
or a portfolio to relative changes in interest rates.  For instance,  a duration
of "one" means that a  portfolio's  or a  security's  price would be expected to
change by approximately one percent with a one percent change in interest rates,
while a duration  of five would  imply that the price  would move  approximately
five percent in relation to a one percent change in interest rates.

   Option  selling and  purchasing is used by the Trust to  effectively  "hedge"
positions, or collections of positions, so that changes in interest rates do not
change the duration of the portfolio  unexpectedly.  In general,  the Trust uses
options to hedge a long or short position or an overall portfolio that is longer
or shorter than the benchmark security. A call option gives the purchaser of the
option the right (but not  obligation)  to buy, and obligates the seller to sell
(when the option is exercised), the underlying position at the exercise price at
any time or at a specified time during the option period. A put option gives the
holder the right to sell and obligates the writer to buy


                                       9


<PAGE>


the underlying position at the exercise price at any time or at a specified time
during the option period.  Put options can be purchased to  effectively  hedge a
position or a portfolio  against  price  declines if a portfolio is long. In the
same sense,  call options can be purchased to hedge a portfolio  that is shorter
than its  benchmark  against price  changes.  The Trust can also sell (or write)
covered call options and put options to hedge portfolio positions.

   The main risk that is associated with  purchasing  options is that the option
expires without being exercised.  In this case, the option expires worthless and
the premium paid for the option is considered the loss. The risk associated with
writing call options is that the Trust may forego the  opportunity  for a profit
if the  market  value of the  underlying  position  increases  and the option is
exercised. The risk in writing put options is that the Trust may incur a loss if
the  market  value  of the  underlying  position  decreases  and the  option  is
exercised.  In addition,  as with futures  contracts,  the Trust risks not being
able to enter into a closing transaction for the written option as the result of
an illiquid market.

INTEREST  RATE  SWAPS:  In a simple  interest  rate swap,  one  investor  pays a
floating  rate of interest on a notional  principal  amount and receives a fixed
rate of interest on the same notional principal amount for a specified period of
time.  Alternatively,  an  investor  may pay a fixed rate and receive a floating
rate. Interest rate swaps were conceived as asset/liability management tools. In
more complex  swaps,  the notional  principal  amount may decline (or  amortize)
overtime.

   During the term of the swap,  changes in the value of the swap are recognized
as unrealized gains or losses by "marking-to-market" to reflect the market value
of the swap. When the swap is terminated,  the Trust will record a realized gain
or loss  equal to the  difference  between  the  proceeds  from (or cost of) the
closing transaction and the Trust's basis in the contract, if any.

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other party to the swap. However, the Trust does not anticipate  non-performance
by any  counterparty.

SWAP  OPTIONS:  Swap  options are similar to options on  securities  except that
instead of selling or purchasing the right to buy or sell a security, the writer
or  purchaser of the swap option is granting or buying the right to enter into a
previously  agreed  upon  interest  rate swap  agreement  at any time before the
expiration of the option.  Premiums  received or paid from writing or purchasing
options are recorded as liabilities or assets and are  subsequently  adjusted to
the current market value of the option written or purchased.  Premiums  received
or paid from writing or purchasing options which expires unexercised are treated
by the Trust on the expiration date as realized gains or losses.  The difference
between the  premium  and the amount  paid or  received  on  effecting a closing
purchase or sale transaction, including brokerage commission, is also treated as
a realized gain or loss. If an option is exercised, the premium paid or received
is added to the proceeds  from the sale or cost of the  purchase in  determining
whether the Trust has realized a gain or loss on investment transactions

   The main risk that is  associated  with  purchasing  swap options is that the
swap option expires  without being  exercised.  In this case, the option expires
worthless and the premium paid for the swap option is considered  the loss.  The
main risk that is  associated  with the  writing of a swap  option is the market
risk of an unfavorable  change in the value of the interest rate swap underlying
the written swap option.

   Swap  options may be used by the Trust to manage the  duration of the Trust's
portfolio in a manner similar to more generic options described above.

FINANCIAL  FUTURES  CONTRACTS:  A futures  contract is an agreement  between two
parties to buy and sell a financial instrument for a set price on a future date.
Initial margin deposits are made upon entering into futures contracts and can be
either  cash or  securities.  During the period the  futures  contract  is open,
changes in the value of the  contract  are  recognized  as  unrealized  gains or
losses by  "marking-to-market"  on a daily basis to reflect the market  value of
the contract at the end of each day's  trading.  Variation  margin  payments are
made or  received,  depending  upon  whether  unrealized  gains  or  losses  are
incurred. When the contract is closed, the Trust records a realized gain or loss
equal to the  difference  between  the  proceeds  from (or cost of) the  closing
transaction and the Trust's basis in the contract.

   Financial  futures  contracts,  when used by the Trust, help in maintaining a
targeted  duration.  Futures  contracts  can be sold to  effectively  shorten an
otherwise longer duration portfolio. In the same sense, futures contracts can be
purchased  to lengthen a portfolio  that is shorter  than its  duration  target.
Thus, by buying or selling futures contracts,  the Trust can effectively "hedge"
positions  so that  changes in interest  rates do not change the duration of the
portfolio unexpectedly.

   The Trust may invest in financial futures contracts primarily for the purpose
of hedging its existing portfolio  securities or securities the Trust intends to
purchase  against  fluctuations in value caused by changes in prevailing  market
interest rates.


                                       10


<PAGE>

Should  interest  rates  move  unexpectedly,  the  Trust  may  not  achieve  the
anticipated  benefits of the financial futures contracts and may realize a loss.
The use of futures  transactions  involves the risk of imperfect  correlation in
movements in the price of futures  contracts,  interest rates and the underlying
hedged  assets.  The Trust is also at the risk of not being able to enter into a
closing  transaction for the futures contract  because of an illiquid  secondary
market. In addition, since futures are used to shorten or lengthen a portfolio's
duration,  there is a risk that the  portfolio  may have  temporarily  performed
better  without the hedge or that the Trust may lose the  opportunity to realize
appreciation in the market price of the underlying positions.

SHORT SALES: The Trust may make short sales of securities as a method of hedging
potential  price declines in similar  securities  owned.  When the Trust makes a
short  sale,  it may  borrow  the  security  sold  short and  deliver  it to the
broker-dealer  through  which  it made  the  short  sale as  collateral  for its
obligation  to deliver the security upon  conclusion of the sale.  The Trust may
have to pay a fee to borrow the  particular  securities  and may be obligated to
pay over any payments received on such borrowed  securities.  A gain, limited to
the price at which the Trust sold the security short, or a loss, unlimited as to
dollar amount,  will be recognized  upon the  termination of a short sale if the
market price is greater or less than the proceeds originally received.

SECURITIES  LENDING:  The Trust may lend its  portfolio  securities to qualified
institutions.  The loans are secured by collateral at least equal, at all times,
to the market  value of the  securities  loaned.  The Trust may bear the risk of
delay in recovery of, or even loss of rights in, the  securities  loaned  should
the borrower of the securities fail financially. The Trust receives compensation
for lending its  securities in the form of interest on the loan.  The Trust also
continues to receive interest on the securities  loaned, and any gain or loss in
the market price of the securities  loaned that may occur during the term of the
loan will be for the account of the Trust.

INTEREST  RATE CAPS:  Interest  rate caps are  similar to  interest  rate swaps,
except  that one party  agrees to pay a fee,  while  the  other  party  pays the
excess,  if any,  of a floating  rate over a specified  fixed or floating  rate.

   Interest  rate caps are  intended to both manage the  duration of the Trust's
portfolio and its exposure to changes in short-term rates.  Owning interest rate
caps reduces the  portfolio's  duration,  making it less sensitive to changes in
interest rates from a market value  perspective.  The effect on income  involves
protection from rising short-term rates,  which the Trust experiences  primarily
in the form of leverage.

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other party to the interest  rate cap.  However,  the Trust does not  anticipate
non-performance by any counterparty.

   Transaction  fees paid or received by the Trust are  recognized  as assets or
liabilities  and amortized or accreted into interest  expense or income over the
life of the interest rate cap. The asset or liability is  subsequently  adjusted
to the current market value of the interest rate cap purchased or sold.  Changes
in the value of the interest rate cap are  recognized  as  unrealized  gains and
losses.

INTEREST  RATE FLOORS:  Interest rate floors are similar to interest rate swaps,
except  that one party  agrees to pay a fee,  while  the  other  party  pays the
deficiency, if any, of a floating rate under a specified fixed or floating rate.

   Interest rate floors are used by the Trust to both manage the duration of the
portfolio  and its exposure to changes in  short-term  interest  rates.  Selling
interest rate floors reduces the portfolio's duration,  making it less sensitive
to changes  in  interest  rates from a market  value  perspective.  The  Trust's
leverage  provides  extra income in a period of falling  rates.  Selling  floors
reduces some of that advantage by partially monetizing it as an up front payment
which the Trust receives.

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other party to the interest rate floor.  However,  the Trust does not anticipate
non-performance by any counterparty.

   Transactions  fees paid or received by the Trust are  recognized as assets or
liabilities  and amortized or accreted into interest  expense or income over the
life of the interest rate floor. The asset or liability is subsequently adjusted
to the  current  market  value of the  interest  rate floor  purchased  or sold.
Changes in the value of the interest  rate floor are  recognized  as  unrealized
gains and  losses.

SECURITIES   TRANSACTIONS  AND  INVESTMENT  INCOME:  Security  transactions  are
recorded  on the trade  date.  Realized  and  unrealized  gains and  losses  are
calculated  on the  identified  cost basis.  Interest  income is recorded on the
accrual  basis  and  the  Trust  amortizes  premium  and  accretes  discount  on
securities purchased using the interest method. Expenses are


                                       11



<PAGE>


recorded on the accrued basis which may require the use of certain  estimates by
management.


TAXES: It is the Trust's  intention to continue to meet the  requirements of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute  substantially all of its taxable income to shareholders.  Therefore,
no  federal  income  tax  provision  is  required.  As part of its tax  planning
strategy, the Trust intends to retain a portion of its taxable income and pay an
excise tax on the undistributed amount.

ESTIMATES:  The preparation of financial statements in conformity with generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.


NOTE 2. AGREEMENTS

The  Trust  has  an  Investment  Advisory  Agreement  with  BlackRock  Financial
Management,  Inc. (the  "Adviser") a  wholly-owned  corporate  subsidiary of PNC
Asset  Management  Group,  Inc., the holding company for PNC's asset  management
business,   and  an  Administration   Agreement  with  Mitchell  Hutchins  Asset
Management Inc. (the "Administrator"),  a wholly-owned subsidiary of PaineWebber
Incorporated.

   The Trust reimburses the 2001 Term Trust for its pro-rata share of applicable
expenses,  including  investment advisory and administrative  fees, in an amount
equal to the  proportionate  amount  of net  assets  which are held by the Trust
relative to the net assets of the 2001 Term Trust.

NOTE 3. PORTFOLIO SECURITIES

Purchases and sales of investment securities,  other than short-term investments
and dollar rolls, for the year ended June 30, 1999 aggregated $2,525,071,146 and
$2,100,609,321, respectively.

   During the period ended June 30, 1998, the Trust received  investments valued
at $1,014,227,416 in exchange for common shares of the Trust.

   The Trust may invest up to 40% of its total  assets in  securities  which are
not readily  marketable,  including those which are restricted as to disposition
under securities law ("restricted securities"). At June 30, 1999, the Trust held
 .89% of its portfolio assets in illiquid securities all of which were restricted
as to resale.

   The Trust may from time to time  purchase  in the  secondary  market  certain
mortgage  pass-through  securities  packaged or master  serviced by PNC Mortgage
Securities Corp. (or Sears Mortgage if PNC Mortgage  Securities Corp.  succeeded
to rights and duties of Sears) or mortgage related  securities  containing loans
or mortgages  originated by PNC Bank or its affiliates,  including  Midland Loan
Services,Inc.   It  is  possible  under  certain  circumstances,   PNC  Mortgage
Securities Corp. or its affiliates,  including Midland Loan Services, Inc. could
have interests  that are in conflict with the holders of these  mortgage  backed
securities,  and such holders could have rights against PNC Mortgage  Securities
Corp. or its affiliates, including Midland Loan Securities, Inc.

   The federal income  tax  basis  of  the Trust's  investments at June 30, 1999
was substantially the same as the basis for financial reporting and accordingly,
net unrealized  depreciation  for federal  income tax purposes was  $36,668,581;
(gross  unrealized  appreciation--$24,634,691;   gross  unrealized  depreciation
- --$61,303,272).

   Details of open financial futures contracts at June 30, 1999 are as follows:
                                         VALUE AT      VALUE AT
NUMBER OF                 EXPIRATION      TRADE         JUNE 30,    UNREALIZED
CONTRACTS      TYPE          DATE         DATE          1999       DEPRECIATION
- --------      -----       ----------    ---------     ----------  --------------
Short position:
(1,750)  30-Yr. T-Bond   Sept. 1999  $(201,087,976) $(202,835,936) $(1,747,960)
                                                                   ===========

   Details of open interest rate caps at June 30, 1999 are as follows:

NOTIONAL     FIXED/                                       VALUE AT
 AMOUNT    FLOATING  FLOATING    TERMINATION  AMORTIZED    JUNE 30,  UNREALIZED
  (000)      RATE      RATE          DATE       COST        1999    DEPRECIATION
 -------    -----    ---------   ----------- -----------  --------- ------------
Purchased:
$120,000    6.00%   3 month LIBOR  2/19/02   $2,042,455  $1,313,851  $(728,604)
  Sold:
(300,000) 3 Yr. CMT 3 month LIBOR  6/08/01   (1,218,602) (1,353,288)  (134,686)
(200,000)3 Yr. CMT  3 month LIBOR  8/12/01     (696,355)   (763,210)   (66,855)
                                                         ----------  ---------
                                                         $ (802,647) $(930,145)
                                                         ==========  =========

   Details of open interest rate swaps at June 30, 1999 are as follows:

NOTIONAL                    FIXED/
 AMOUNT                    FLOATING       FLOATING     TERMINATION   UNREALIZED
  (000)        TYPE          RATE           RATE          DATE      APPRECIATION
 -------       -----        -----        -------      ----------     -----------
Purchased:
 $85,000   Floating Rate  3 Mo. T-Bill  3 month LIBOR   9/10/03       $ 3,553
                          +80.25bps
 80,000    Floating Rate  3 MO. T-BILL  3 MONTH LIBOR   9/10/03         2,880
                          +81.75BPS
 50,000      Basis        3 Mo. T-Bill  3 month LIBOR   9/18/03        81,020
                                                                      -------
                                                                      $87,453
                                                                      =======

NOTE 4. BORROWINGS

REVERSE  REPURCHASE  AGREEMENTS:  The Trust may enter  into  reverse  repurchase
agreements with qualified,


                                       12



<PAGE>



third party  broker-dealers  as  determined  by and under the  direction  of the
Trust's  Board of  Directors.  Interest on the value of the  reverse  repurchase
agreements issued and outstanding will be based upon competitive market rates at
the time of  issuance.  At the time the Trust  enters into a reverse  repurchase
agreement,  it will establish and maintain a segregated  account with the lender
containing  liquid  high-grade  securities  having  a value  not  less  than the
repurchase  price,   including  accrued  interest,  of  the  reverse  repurchase
agreement.

   The average daily balance of reverse repurchase agreements outstanding during
the year ended  June 30,  1999,  was  approximately  $405,263,731  at a weighted
average  interest rate of  approximately  4.54%.  The maximum  amount of reverse
repurchase  agreements  outstanding at any month-end  during the year ended June
30, 1999, was  $583,263,179  as of February 28, 1999,  which was 30.56% of total
assets.

DOLLAR  ROLLS:  The Trust  enters  into  dollar  rolls in which the Trust  sells
securities  for delivery in the current  month and  simultaneously  contracts to
repurchase  substantially similar (same type, coupon and maturity) securities on
a specified future date.  During the roll period the Trust forgoes principal and
interest paid on the securities.The  Trust is compensated by the interest earned
on the cash  proceeds of the initial sale and by the lower  repurchase  price at
the future date.

   The average monthly balance of dollar rolls outstanding during the year ended
June 30, 1999, was approximately $16,867,399.  For the year ended June 30, 1999,
the maximum amount of dollar rolls  outstanding at any month end was $72,475,313
as of the close of February 28, 1999, which was 3.80% of total assets.


NOTE 5. CAPITAL

There are 200 million  shares of $.01 par value  common  stock  authorized.  BLK
owned all of the 142,010,583 shares outstanding at June 30, 1999.


                                       13



<PAGE>


================================================================================
                              BLK SUBSIDIARY, INC.
                         REPORT OF INDEPENDENT AUDITORS
================================================================================

The Shareholder and Board of Directors of
BLK Subsidiary, Inc.

We have  audited the  accompanying  statement of assets and  liabilities  of BLK
Subsidiary,  Inc. (the "Trust"), a wholly-owned subsidiary of The BlackRock 2001
TermTrust Inc., including the portfolio of investments, as of June 30, 1999, and
the related  statements of operations  and of cash flows for the year then ended
and the  statements  of changes in net assets and financial  highlights  for the
period October 17, 1997 (commencement of investment operations) to June 30, 1998
and for the year ended June 30, 1999.  These financial  statements and financial
highlights are the responsibility of the Trust's management.  Our responsibility
is to express an opinion on these financial  statements and financial highlights
based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements. Our procedures included confirmation of securities owned at June 30,
1999, by correspondence  with the custodian and brokers;  where replies were not
received from brokers,  we performed  other auditing  procedures.  An audit also
includes assessing the accounting principles used and significant estimates made
by  management,   as  well  as  evaluating  the  overall   financial   statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion,  such  financial  statements  and financial  highlights  present
fairly, in all material respects, the financial position of BLK Subsidiary, Inc.
as of June 30,  1999,  and the results of its  operations,  its cash flows,  the
changes in its net assets and its financial highlights for the respective stated
periods in conformity with generally accepted accounting principles.





/s/Deloitte & Touche, LLP
- -----------------------------------
Deloitte & Touche, LLP

New York, New York
August 6, 1999



                                       14

<PAGE>

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

 BLACKROCK

- --------------
DIRECTORS
Laurence D. Fink, CHAIRMAN
Andrew F. Brimmer
Richard E. Cavanagh
Kent Dixon
Frank J. Fabozzi
James Grosfeld
James Clayburn La Force, Jr.
Walter F. Mondale
Ralph L. Schlosstein

OFFICERS
Ralph L. Schlosstein, PRESIDENT
Scott Amero, VICE PRESIDENT
Keith T. Anderson, VICE PRESIDENT
Michael C. Huebsch, VICE PRESIDENT
Robert S. Kapito, VICE PRESIDENT
Richard M. Shea, VICE PRESIDENT/TAX
Henry Gabbay, TREASURER
James Kong, ASSISTANT TREASURER
Karen H. Sabath, SECRETARY

INVESTMENT ADVISER
BlackRock Financial Management, Inc.
345 Park Avenue
New York, NY 10154
(800) 227-7BFM

ADMINISTRATOR
Mitchell Hutchins Asset Management Inc.
1285 Avenue of the Americas
New York, NY 10019

CUSTODIAN AND TRANSFER AGENT
State Street Bank and Trust Company
One Heritage Drive
North Quincy, MA 02171
(800) 699-1BFM

INDEPENDENT AUDITORS
Deloitte & Touche LLP
Two World Financial Center
New York, NY 10281-1434

LEGAL COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP
919 Third Avenue
New York, NY 10022
   This report is for shareholder information.
 This is not a prospectus intended for use
 in the purchase or sale of any securities.

                              BLK SUBSIDIARY, INC.
                   c/o Mitchell Hutchins Asset Management Inc.
                                   37th Floor
                           1285 Avenue of the Americas
                               New York, NY 10019


[PHOTO OMITTED]Printed on recycled paper                             09247T-10-0


BLK SUBSIDIARY, INC.
=================================================
ANNUAL REPORT
JUNE 30, 1999




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