BLACKROCK HIGH YIELD TRUST
N-30D, 1999-07-01
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- --------------------------------------------------------------------------------
                         THE BLACKROCK HIGH YIELD TRUST
                       SEMI-ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------


                                                                    May 31, 1999




Dear Shareholder:

     During  the  period covered by this semi-annual report, interest rates rose
sharply  as  U.S.  economic  growth remained strong, labor markets tightened and
international  markets  began  to  recover. In light of these factors, on May 18
members  of  the  Federal Reserve's Federal Open Market Committee announced that
they  had  adopted  a  bias towards higher interest rates, citing a concern that
inflation might start to accelerate.

     BlackRock  has  adopted  a  cautious view of the bond market, as we believe
that  there  is  a real possibility that the Federal Reserve will raise interest
rates  in  the  near  future. Additionally, because the Treasury yield curve has
already  priced  in  Federal Reserve action, we believe that interest rates will
trade in a relatively narrow range until the economy shows signs of slowing.

     This  report  contains  comments  from  your Trust's managers regarding the
markets  and  portfolio  in addition to the Trust's initial financial statements
and  a detailed portfolio listing. We thank you for your continued investment in
the Trust.


Sincerely,



/s/ Laurence D. Fink       /s/ Ralph L. Schlosstein
- --------------------       ------------------------
Laurence D. Fink           Ralph L. Schlosstein
Chairman                   President


                                       1



<PAGE>

                                                                    May 31, 1999

Dear Shareholder:

     We  are  pleased  to present the first semi-annual report for The BlackRock
High  Yield  Trust  (the "Trust") for the period ending April 30, 1999. We would
like  to  take  this opportunity to review the Trust's stock price and net asset
value  (NAV)  performance,  summarize  market  developments  and  discuss recent
portfolio management activity.

     The  Trust  is  a  diversified, actively managed closed-end bond fund whose
shares  are  traded  on  the New York Stock Exchange under the symbol "BHY". The
Trust's  primary investment objective is to provide high current income, and its
secondary  objective  is  capital  appreciation. The Trust seeks to achieve this
objective  by  investing  at  least  80% of the portfolio in high yield or "junk
bonds"  (rated "BB" or below by a major rating agency or of equivalent quality).


     The  table  below summarizes the changes in the Trust's stock price and net
asset value since inception:



 <TABLE>
<CAPTION>
                              ---------------------------------------------------------
                                4/30/99    12/23/98     CHANGE        HIGH          LOW
<S>                           <C>         <C>        <C>          <C>          <C>
- ----------------------------------------------------------------------------------------
 STOCK PRICE                  $ 14.50     $ 15.06     (3.72%)     $ 15.063     $ 14.375
- ----------------------------------------------------------------------------------------
 NET ASSET VALUE (NAV)        $ 15.39     $ 14.91      3.22%      $ 15.39      $ 14.47
- ----------------------------------------------------------------------------------------
 10-YEAR U.S. TREASURY NOTE     5.35%       4.80%     11.46%         5.42%        4.52%
- ----------------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

     The  past  six  months have witnessed continued rapid expansion of the U.S.
economy.  GDP  growth  for  the  first quarter of 1999 is estimated at an annual
rate  above 4%, far exceeding the historical non-inflationary level of 2%. While
BlackRock  believes  that  growth  may  slow down in the second half of 1999, we
anticipate  GDP  to  remain  above  3% for the year. Despite the strong economic
growth,  inflation  has  stayed  surprisingly  subdued.  A significant factor in
maintaining  low  inflation  in  the  U.S.  economy  stems  from the increase in
industrial  productivity. Higher productivity has allowed manufacturers to avoid
price increases despite tight labor markets.

     The  Treasury  market  briefly  rallied early in the fourth quarter of 1998
before  dramatically reversing in 1999. For the period, the yield of the 10-year
Treasury  security  rose  from  4.80% on December 23, 1998 to 5.35% on April 30,
1999.  The  weak  performance  of  the  Treasury  market  can  be  attributed to
investors  leaving  the safe haven of Treasuries to purchase credit sensitive or
higher  yielding  securities  in reaction to inflationary concerns voiced by the
Federal Reserve.

     Since  the  Trust's  inception  in  December 1998 the high yield market has
performed  well  as  yield spreads have narrowed compared to Treasuries. For the
first  four  months  of 1999 high yield bonds as measured by THE LEHMAN BROTHERS
HIGH   YIELD  INDEX  returned  3.82%,  significantly  outperforming  the  LEHMAN
BROTHERS  AGGREGATE  INDEX'S  -0.19%.  The willingness of investors to return to
riskier  credits  has certainly helped the high yield market. Within the sector,
investors  continue to emphasize higher quality credits, which have outperformed
lower  tier  credits.  Supply  and  demand  technicals  of the high yield market
appear  to be favorable, due to strong money inflows into mutual funds and lower
supply  relative  to  last year's issuance (down approximately 38%). We view the
reduction  of  supply  as  a  healthy  trend  as  the  market appears to be more
disciplined  in  its  selection  process, resulting in many companies being shut
out of the market.


THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

     The  Trust's portfolio is actively managed to diversify exposure to various
sectors,  issuers,  revenue  sources  and security types. BlackRock's investment
strategy  emphasizes  a  relative  value  approach,  which  allows  the Trust to
capitalize  upon  changing  market  conditions  by  rotating  municipal sectors,
credits and coupons.


                                       2



<PAGE>

     The  Trust  has  focused  on  non-cyclical companies that offer stable cash
flow.  In  particular,  the  Trust  has focused on telecom and media issues that
have  benefited from strong investor demand. Particular emphasis has been placed
on  these  sectors as improving fundamentals and the potential for consolidation
continues  to be a major contributor to their performance. The Trust has avoided
industries  with heavy government regulation and high leverage. For instance the
Trust  has  been  underweighting  the  healthcare  sector, which has been a weak
performer  as  new  Medicare payment regulations coupled with high leverage have
forced  several  providers  into serious financial stress. The Trust has focused
on  the B-rated credits, whose spreads continue to tighten, while underweighting
CCC-rated  securities  which  have  underperformed  with  the  market's  reduced
appetite for credit risk.

     The  following charts show the Trust's current asset composition and credit
quality allocations:

- -------------------------------------------------------------------
       STANDARD & POOR'S/MOODY'S
        CREDIT RATING                         APRIL 30, 1999
- -------------------------------------------------------------------
       BB/Ba                                         24%
- -------------------------------------------------------------------
       B/B                                           57%
- -------------------------------------------------------------------
       CCC/Caa                                        8%
- -------------------------------------------------------------------
       Not Rated                                     11%
- -------------------------------------------------------------------

     We  look  forward  to  continuing  to  manage the Trust to benefit from the
opportunities  available  to investors in the investment grade municipal market.
We  thank  you  for your investment and continued interest in The BlackRock High
Yield  Trust.  Please  feel  free to call our marketing center at (800) 227-7BFM
(7236)  if  you  have  any  specific  questions which were not addressed in this
report.

Sincerely yours,

/s/ Robert S. Kapito                   /s/ Dennis Schaney
- --------------------                   -------------------
Robert S. Kapito                       Dennis Schaney

Vice Chairman and Portfolio Manager    Managing Director and Portfolio Manager
BlackRock Financial Management, Inc.   BlackRock Financial Management, Inc.


- --------------------------------------------------------------------------------
                            THE BLACKROCK HIGH YIELD TRUST
- --------------------------------------------------------------------------------
  Symbol on New York Stock Exchange:                               BHY
- --------------------------------------------------------------------------------
  Initial Offering Date:                                    December 12, 1998
- --------------------------------------------------------------------------------
  Closing Stock Price as of 4/30/99:                        $ 14.50
- --------------------------------------------------------------------------------
  Net Asset Value as of 4/30/99:                            $ 15.39
- --------------------------------------------------------------------------------
  Yield on Closing Stock Price as of 4/30/99 ($14.50)1:       10.48%
- --------------------------------------------------------------------------------
  Current Monthly Distribution per Share2:                  $  0.126563
- --------------------------------------------------------------------------------
  Current Annualized Distribution per Share2:               $  1.518756
- --------------------------------------------------------------------------------
1 Yield  on closing stock price is calculated by dividing the current annualized
  distribution per share by the closing stock price per share.
2 The distribution is not constant and is subject to change.

                                       3

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
PORTFOLIO OF INVESTMENTS
APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                    PRINCIPAL
                     AMOUNT                                                      VALUE
  RATING*             (000)                      DESCRIPTION                    (NOTE 1)
- ----------------------------------------------------------------------------------------
<S>           <C>                  <C>                                      <C>
                                   LONG-TERM INVESTMENTS-142.4%
                                   CORPORATE BONDS-136.8%
                                   AERO & DEFENSE-1.0%
B-                 $    1,000      Condor Systems, Inc.**, Sr. Sub. Note,
                                    11.88%, 5/1/09 ......................   $  995,000
                                                                            ----------
                                   AIR TRANSPORT-2.1%
B+                      2,000      Amtran, Inc., Sr. Note,
                                    9.63%, 12/15/05 .....................    2,005,000
                                                                            ----------
                                   AUTOMOTIVE-6.2%
B                       2,000      Group 1 Automotive, Inc.,
                                    10.88%, 3/1/09 ......................    2,015,000
B-                      4,000      Sonic Automotive, Inc., Sr. Sub. Note,
                                    11.00%, 8/1/08 ......................    3,970,000
                                                                            ----------
                                                                             5,985,000
                                                                            ----------
                                   BUILDING & DEVELOPMENT-8.2%
Ba1                     3,000      D. R. Horton, Inc., Sr. Note,
                                    8.00%, 2/1/09 .......................    2,970,000
B-                      2,000      Formica Corp.**, Sr. Sub. Note,
                                    10.88%, 3/1/09 ......................    2,020,000
BB-                     3,000      United States Home Corp., Sr. Sub.
                                    Note, 8.88%, 2/15/09 ................    2,955,000
                                                                            ----------
                                                                             7,945,000
                                                                            ----------
                                   BUSINESS EQUIPMENT & SERVICES-3.5%
NR                      3,500      Kasper ASL Ltd., Sr. Note,
                                    12.75%, 3/31/04 .....................    3,360,000
                                                                            ----------
                                   CABLE TV-9.1%
B+                      2,000      Charter Communications Holdings
                                    LLC**, Sr. Note,
                                    Zero Coupon, (9.92% commencing
                                    4/1/04), 4/1/11 ....................    1,322,500
B                       4,000      Echostar DBS Corp.**, Sr. Note,
                                    9.38%, 2/1/09 .......................    4,150,000
B+                      2,000      James Cable Partners LP, Sr. Note,
                                    Series B, 10.75%, 8/15/04 ...........    2,150,000
NR                      2,000      Knology Holdings, Inc., Sr. Note,
                                    Zero Coupon (11.875%
                                    commencing 10/15/02), 10/15/07.......    1,240,000
                                                                            ----------
                                                                             8,862,500
                                                                            ----------
                                   CLOTHING & TEXTILES-5.2%
B-                      4,000      Triarc Consumer Products Group,
                                    LLC**, Sr. Sub. Note,
                                    10.25%, 2/15/09 .....................    4,040,000
B-                      1,000      Tropical Sportswear International
                                    Corp., Sr. Sub. Note,
                                    11.00%, 6/15/08 .....................    1,050,000
                                                                            ----------
                                                                             5,090,000
                                                                            ----------
                                   COSMETICS & TOILETRIES-3.2%
B-                      3,250      Revlon Consumer Products Corp.,
                                    Sr. Sub. Note,
                                    8.63%, 2/1/08 ......................     3,120,000
                                                                            ----------


</TABLE>
<TABLE>
<CAPTION>
                    PRINCIPAL
                     AMOUNT                                                       VALUE
  RATING*             (000)                      DESCRIPTION                    (NOTE 1)
- ----------------------------------------------------------------------------------------
<S>           <C>                  <C>                                      <C>
                                   ECOLOGICAL SERVICES & EQUIPMENT-4.5%
                                   Allied Waste North America, Inc.,
                                   Sr. Note,
BB                 $    2,000       7.63%, 1/1/06 .......................   $1,955,000
BB                      2,498       7.88%, 1/1/09 .......................    2,441,306
                                                                            ----------
                                                                             4,396,306
                                                                            ----------
                                   ELECTRONICS-4.2%
B+                      2,000      Pogo Producing Co., Sr. Sub.
                                    Note,10.38%, 2/15/09 ................    2,075,000
BB+                     2,000      Toll Corp., Sr. Sub. Note,
                                    8.00%, 5/1/09 .......................    2,000,000
                                                                            ----------
                                                                             4,075,000
                                                                            ----------
                                   FARMING & AGRICULTURE-3.4%
B                       3,000      Ainsworth Lumber Co. Ltd., Sr. Sec.
                                    Note, 12.50%, 7/15/07 ...............    3,330,000
                                                                            ----------
                                   FINANCIAL INTERMEDIARIES-8.8%
Ba3                     2,500      First Dominion Funding II**,
                                    Series 1-A, Class D-1,
                                    11.61%, 4/25/14 .....................    2,500,000
B-                      2,000      Penhall International Corp., Sr. Note,
                                    12.00%, 8/1/06 ......................    2,000,000
BB-                     1,000      United Rentals, Inc.**, Sr. Sub. Note,
                                    9.00%, 4/1/09 .......................      995,000
Ba3                     3,000      Willis Corroon Corp.**, Sr. Sub. Note,
                                    9.00%, 2/1/09 .......................    3,037,500
                                                                            ----------
                                                                             8,532,500
                                                                            ----------
                                   FOOD SERVICE-1.7%
B-                      2,000      Ameriserve Food Distribution, Inc.,
                                    Sr. Sub. Note,
                                    10.13%, 7/15/07 .....................    1,640,000
                                                                            ----------
                                   FOREST PRODUCTS-2.8%
B-                      1,000      Panolam Industries International,
                                    Inc.**, Sr. Sub. Note,
                                    11.50%, 2/15/09 .....................    1,050,000
CCC+                    2,000      Repap New Brunswick, Inc., 2nd
                                    Priority Sr. Sec. Note,
                                    10.63%, 4/15/05 .....................    1,620,000
                                                                            ----------
                                                                             2,670,000
                                                                            ----------
                                   HEALTH CARE-6.2%
CCC+                    2,635      Fountain View, Inc., Sr. Sub. Note,
                                    11.25%, 4/15/08 .....................    2,200,225
B3                      3,325      Mariner Post-Acute Network, Inc., Sr.
                                    Sub. Note,
                                    9.50%, 11/1/07 ......................    1,729,000
BB-                     2,000      Polaroid Corp., Note,
                                    11.50%, 2/15/06 .....................    2,090,000
                                                                            ----------
                                                                             6,019,225
                                                                            ----------
                                   HOTELS & CASINO-5.2%
BB                      3,000      Host Marriott, L.P.**, Sr. Note,
                                    Series D, 8.38%, 2/15/06 ............    3,030,000
</TABLE>

See Notes to Financial Statements.
                                       4
<PAGE>

<TABLE>
<CAPTION>
                    PRINCIPAL
                     AMOUNT                                                       VALUE
  RATING*             (000)                      DESCRIPTION                    (NOTE 1)
- ---------------------------------------------------------------------------------------
<S>           <C>                  <C>                                      <C>
                                   HOTELS & CASINO (CONT'D)
B                  $    2,000      Meristar Hospitality Corp.**,
                                    Sr. Sub. Note,
                                    8.75%, 8/15/07 ......................   $ 1,982,500
                                                                            -----------
                                                                              5,012,500
                                                                            -----------
                                   INDUSTRIAL EQUIPMENT-15.1%
B+                      2,500      High Voltage Engineering Corp.,
                                    Sr. Note,
                                    10.50%, 8/15/04 .....................     2,375,000
B-                      2,000      Muzak LP**, Sr. Sub. Note,
                                    9.88%, 3/15/09 ......................     2,040,000
B                       4,000      National Equipment Services, Inc.,
                                    Series C, 10.00%, 11/30/04 ..........     4,160,000
B                       2,000      Neff Corp.**, Sr. Sub. Note,
                                    10.25%, 6/1/08 ......................     2,080,000
B-                      1,000      Precision Partners, Inc.**,
                                    Sr. Sub. Note,
                                    12.00%, 3/15/09 .....................     1,030,000
NR                      1,500      Rhythms Netconnections, Inc.**,
                                    Sr. Note,
                                    12.75%, 4/15/09 .....................     1,492,500
BB+                     1,500      Veritas DGC, Inc., Sr. Note,
                                    Series C, 9.75%, 10/15/03 ...........     1,530,000
                                                                            -----------
                                                                             14,707,500
                                                                            -----------
                                   LEISURE-6.7%
B-                      3,000      AMC Entertainment, Inc.**,
                                    Sr. Sub. Note,
                                    9.50%, 2/1/11 .......................     2,932,500
B                       2,000      Carmike Cinemas, Inc.**,
                                    Sr. Sub. Note,
                                    9.38%, 2/1/09 .......................     2,010,000
B-                      1,500      Phoenix Color Corp.**, Sr. Sub. Note,
                                    10.38%, 2/1/09 ......................     1,522,500
                                                                            -----------
                                                                              6,465,000
                                                                            -----------
                                   NONFERROUS METALS & MINERALS-4.4%
BB-                     2,000      Golden Northwest Aluminum, Inc.**,
                                    1st Mortgage Note,
                                    12.00%, 12/15/06 ....................     2,070,000
BB-                     2,250      Wheeling Pittsburgh Corp., Sr. Note,
                                    9.25%, 11/15/07 .....................     2,250,000
                                                                            -----------
                                                                              4,320,000
                                                                            -----------
                                   OIL & GAS-3.0%
                                   R&B Falcon Corp.**, Sr. Note,
Ba3                     2,000       9.50%, 12/15/08 .....................     1,900,000
                                    Sr. Sec. Note,
BB-                     1,000       11.00%, 3/15/06 .....................     1,050,000
                                                                            -----------
                                                                              2,950,000
                                                                            -----------
                                   RETAILERS-6.7%
B3                      4,000      Hollywood Entertainment Corp.,
                                    Sr. Sub. Note,
                                    Series B, 10.63%, 8/15/04 ...........     4,000,000
B-                      2,000      Supreme International Corp.**,
                                    Sr. Sub. Note,
                                    12.25%, 4/1/06 ......................     2,020,000
B-                        500      True Temper Sports, Inc.**,
                                    Sr. Sub. Note,
                                    10.88%, 12/1/08 .....................       455,000
                                                                            -----------
                                                                              6,475,000
                                                                            -----------

</TABLE>

<TABLE>
<CAPTION>
                    PRINCIPAL
                     AMOUNT                                                       VALUE
  RATING*             (000)                      DESCRIPTION                    (NOTE 1)
- ---------------------------------------------------------------------------------------
<S>           <C>                  <C>                                      <C>
                                   TELECOMMUNICATION-25.6%
B1                 $    1,000      Global Crossings Holdings Ltd.,
                                    Sr. Note, 9.63%, 5/15/08 ............   $ 1,112,500
B3                      4,500      Intermedia Communications, Inc.**,
                                    Sr. Sub. Note,
                                    Zero Coupon, (12.25%
                                    commencing 3/1/04), 3/1/09 ..........     2,835,000
B                       3,500      IPC Information Systems, Inc.,
                                    Sr. Note,
                                    Zero Coupon, (10.875%
                                    commencing 11/1/01), 5/1/08 .........     2,677,500
BB-                       500      Primedia, Inc., Sr. Note,
                                    8.50%, 2/1/06 .......................       517,500
B+                      2,000      Mcleod USA, Inc.**, Sr. Note,
                                    8.13%, 2/15/09 ......................     1,985,000
B2                      1,000      Nextel Communications, Inc.**,
                                    Sr. Note, 12.00%, 11/1/08 ...........     1,180,000
B3                      7,000      Nextel Partners, Inc.**, Sr. Note,
                                    Zero Coupon, (14.00%
                                   commencing 2/1/04), 2/1/09 ...........     4,270,000
NR                      3,000      Northeast Optic, Sr. Note,
                                    12.75%, 8/15/08 .....................     3,165,000
NR                      5,000      Pinnacle Holdings, Inc., Sr. Note,
                                    Zero Coupon, (10.00%
                                    commencing 3/15/03), 3/15/08 ........     3,150,000
CCC                     4,000      Teligent, Inc., Sr. Note,
                                    11.50%, 12/1/07 .....................     4,000,000
                                                                            -----------
                                                                             24,892,500
                                                                            -----------
                                   Total corporate bonds-136.8%
                                    (cost $130,218,769)..................   132,848,031
                                                                            -----------
                     SHARES
                   ----------
                                   PREFERRED STOCK-3.5%
                                   TELECOMMUNICATION-3.5%
CCC                     3,169      Nextel Communications, Inc.**,
                                   Series E, 11.13%, 2/15/10 PIK
                                    (cost $2,912,600) ....................    3,445,740
                                                                            -----------
                   PRINCIPAL
                    AMOUNT
                     (000)
                  ----------
                                   SENIOR BANK LOAN-2.1%
                                   HEALTH CARE-2.1%
B-                      2,000      Oxford Health Plans, Inc.,
                                    9.34%, 5/13/03 (cost $2,010,000).....     2,002,500
                                                                            -----------
                                   TOTAL LONG-TERM INVESTMENTS-142.4%
                                    (cost $135,141,369)..................   138,296,271
                                                                            -----------
                                   SHORT-TERM INVESTMENT-0.4%
                                   DISCOUNT NOTE-0.4%
                          335      Federal Home Loan Bank,
                                    4.80%, 5/3/99
                                    (cost $334,911)......................       334,911
                                                                            -----------
                                   TOTAL INVESTMENTS-142.8%
                                    (cost $135,476,280; Note 3)..........   138,631,182
                                   Liabilities in excess of other
                                    assets-(42.8)% ......................   (41,540,717)
                                                                            -----------
                                   NET ASSETS-100% ......................   $97,090,465
                                                                            ===========
</TABLE>

- ---------------------
  * Using the higher of Standard & Poor's, Moody's or Fitch's rating.
 ** Private placements restricted as to resale.

=========================================
          KEY TO ABBREVIATIONS
    PIK   - Payment in kind.
=========================================

See Notes to Financial Statements.
                                       5



<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
STATEMENT OF ASSETS AND LIABILITIES
APRIL 30, 1999
(UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                  <C>
ASSETS
Investments, at value (cost $135,476,280) (Note 1   $138,631,182
Receivable for investments sold ..................     3,915,214
Interest receivable ..............................     3,048,637
                                                    ------------
                                                     145,595,033
                                                    ------------
LIABILITIES
Loan payable (Note 4) ............................    44,000,000
Payable for investments purchased ................     4,133,722
Interest payable .................................       201,667
Investment advisory fee payable (Note 2) .........       120,300
Administration fee payable (Note 2) ..............        11,457
Other accrued expenses ...........................        37,422
                                                     -----------
                                                      48,504,568
                                                     -----------
NET ASSETS .......................................   $97,090,465
                                                     ===========
Net assets were comprised of:
  Common stock, at par (Note 5) ..................   $     6,307
 Paid-in capital in excess of par ................    94,467,560
                                                     -----------
                                                      94,473,867
 Undistributed net investment income .............       635,481
 Accumulated net realized losses .................    (1,173,785)
 Net unrealized appreciation .....................     3,154,902
                                                     -----------
Net assets, April 30, 1999 .......................   $97,090,465
                                                     ===========
NET ASSET VALUE PER SHARE:
 ($97,090,465 o 6,306,667 shares of
  common stock issued and outstanding) ...........        $15.39
                                                          ======
</TABLE>



- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
STATEMENT OF OPERATIONS
FOR THE PERIOD DECEMBER 23, 1998*
THROUGH APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                    <C>

NET INVESTMENT INCOME
Income
  Interest (net of premium amortization of $17,392
  and interest expense of $405,750) ................   $3,571,966
                                                       ----------

Expenses
  Investment advisory ..............................      424,992
  Administration ...................................       40,475
  Audit ............................................       14,000
  Directors ........................................       14,000
  Custodian ........................................       12,000
  Reports to shareholders ..........................       12,000
  Legal ............................................       10,000
  Transfer agent ...................................        8,000
  Miscellaneous ....................................        6,455
                                                       ----------
   Total operating expenses ........................      541,922
                                                       ----------
Net investment income ..............................    3,030,044
                                                       ----------

REALIZED AND UNREALIZED GAIN (LOSS)
ON INVESTMENTS (NOTE 3)
Net realized loss on investments ...................   (1,173,785)
Net change in unrealized appreciation (depreciation)
  on investments ...................................    3,154,902
                                                       ----------
Net gain on investments ............................    1,981,117
                                                       ----------

NET INCREASE IN NET ASSETS
RESULTING FROM OPERATIONS ..........................   $5,011,161
                                                       ==========
</TABLE>

- ----------------
* Commencement of investment operations (Note 1).

See Notes to Financial Statements.
                                       6



<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
STATEMENT OF CASH FLOWS
FOR THE PERIOD DECEMBER 23, 1998*
THROUGH APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                            <C>
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 ......... $   5,011,161
                                                               -------------
Increase in investments ......................................  (136,650,065)
Net realized loss ............................................     1,173,785
Increase in unrealized appreciation ..........................    (3,154,902)
Increase in interest receivable ..............................    (3,048,637)
Increase in receivable for investments sold ..................    (3,915,214)
Decrease in receivable from BlackRock Advisors, Inc.                  63,500
Decrease in accrued organizational costs .....................       (63,500)
Increase in payable for investments purchased ................     4,133,722
Decrease in prepaid offering costs ...........................       110,000
Increase in interest payable .................................       201,667
Increase in accrued expenses and other liabilities ...........        59,179
                                                               -------------
 Total adjustments ...........................................  (141,090,465)
                                                               -------------
Net cash flows used for operating activities ................. $(136,079,304)
                                                               =============
INCREASE (DECREASE) IN CASH
Net cash flows used for operating activities ................. $(136,079,304)
                                                               -------------
Cash flows provided by financing activities:
 Net proceeds from initial public offering of Trust
  shares .....................................................    94,373,867
 Increase in loans ...........................................    44,000,000
 Cash dividends paid .........................................    (2,394,563)
                                                               -------------
Net cash flows provided by financing activities ..............   135,979,304
                                                               -------------
 Net decrease in cash ........................................      (100,000)
 Cash at beginning of period .................................       100,000
                                                               -------------
 Cash at end of period ....................................... $           0
                                                               =============
</TABLE>

- ----------------
* Commencement of investment operations (Note 1).

- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
STATEMENTS OF CHANGES
IN NET ASSETS
(UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                          FOR THE PERIOD
                                        DECEMBER 23, 1998*
                                             THROUGH
                                          APRIL 30, 1999
                                       -------------------
<S>                                        <C>
INCREASE (DECREASE) IN
 NET ASSETS
Operations:
  Net investment income ................   $ 3,030,044
  Net realized loss ....................    (1,173,785)
  Net change in unrealized
   appreciation (depreciation) .........     3,154,902
                                           -----------
  Net increase in
   net assets resulting from
   operations ..........................     5,011,161
Dividends from
  net investment income ................    (2,394,563)
Net proceeds from initial public
  offering of Trust shares .............    94,373,867
                                           -----------
Total increase .........................    96,990,465
                                           -----------
NET ASSETS
Beginning of period ....................       100,000
                                           -----------
End of period ..........................   $97,090,465
                                           ===========
</TABLE>

- ----------------
* Commencement of investment operations (Note 1).

See Notes to Financial Statements.
                                       7



<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK HIGH YIELD TRUST
FINANCIAL HIGHLIGHTS (UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                FOR THE PERIOD
                                                             DECEMBER 23, 1998**
                                                                    THROUGH
                                                               APRIL 30, 1999
                                                            --------------------
<S>                                                             <C>
PER SHARE OPERATING PERFORMANCE
Net asset value, beginning of period ..........................     $ 15.00
                                                                    -------
Net investment income (net of $0.06 interest expense) .........         .48
Net realized and unrealized gain on investments ...............         .31
                                                                    -------
Net increase from investment operations .......................         .79
                                                                    -------
Dividends from net investment income ..........................        (.38)
                                                                    -------
Capital charge with respect to issuance of shares .............        (.02)
                                                                    -------
Net asset value, end of period* ...............................     $ 15.39
                                                                    =======
Per share market value, end of period* ........................     $ 14.50
                                                                    =======
TOTAL INVESTMENT RETURN+ .....................................         (.86%)
                                                                    ========
RATIOS TO AVERAGE NET ASSETS:
Operating expenses@ ...........................................        1.64%+++
Net investment income .........................................        9.17%+++
SUPPLEMENTAL DATA:
Average net assets (in thousands) .............................     $94,226
Portfolio turnover ............................................          50%
Net assets, end of period (in thousands) ......................     $97,090
Loans outstanding, end of period (in thousands) ...............     $44,000
Asset coverage++ ..............................................     $ 3,211
</TABLE>

- ----------
*  Net  asset  value  and  market value are published in THE WALL STREET JOURNAL
   each Monday.
** Commencement of investment operations (Note 1).
@  The  ratio  of  operating expenses, including interest expense to average net
   assets was 2.87%.
+  Total  investment  return  is calculated assuming  a purchase of common stock
   at  the  current  market  price  on  the  first day and a sale at the current
   market  price  on  the  last  day  of  the  period  reported.  Dividends  and
   distributions,  if  any,  are assumed for purposes of this calculation, to be
   reinvested  at  prices obtained under the Trust's dividend reinvestment plan.
   Total  investment  return  does  not  reflect  brokerage  commissions.  Total
   investment return for periods less than one full year are not annualized.
++ Per $1,000 of loans outstanding.
+++Annualized.


The  information  above  represents  the  unaudited  operating performance for a
share  of  common  stock outstanding, total investment return, ratios to average
net   assets  and  other  supplemental  data  for  the  period  indicated.  This
information  has  been  determined  based upon financial information provided in
the financial statements and market value data for the Trust's shares.








                       See Notes to Financial Statements.

                                       8



<PAGE>

- --------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
- --------------------------------------------------------------------------------

NOTE 1. ORGANIZATION                             The   BlackRock   High   Yield
ACCOUNTING                                       Trust (the "Trust"), was orga-
POLICIES                                         nized on August 10, 1998 as  a
                                                 Delaware   business  trust, and
is registered as a diversified,  closed-end  management investment company under
the Investment Company Act of 1940. The Trust had no transactions until December
15, 1998 when it sold 6,667  shares of common  stock for  $100,000 to  BlackRock
Financial Management, Inc. Investment operations commenced on December 23, 1998.
The investment  objective of the Trust is to generate high current income with a
secondary  objective  of capital  appreciation.  The  ability of issuers of debt
securities  held by the  Trust to meet  their  obligations  may be  affected  by
economic  developments  in a specific  industry or region.  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  debt  securities, preferred stock and
service  bank  loans  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.  Any  securities  or  other  assets  for  which  such current market
quotations  are  not readily available are valued at fair 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.

SECURITIES  TRANSACTIONS  AND  INVESTMENT  INCOME: Securities  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  accretes  discount  or  amortizes  premium  on
securities  purchased  using  the  interest method. Expenses are recorded on the
accrual 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  sufficient amounts of its taxable income to shareholders. Therefore,
no Federal income tax provision is required.

DIVIDENDS   AND   DISTRIBUTIONS: The  Trust  declares  and  pays  dividends  and
distributions  monthly,  first  from  net  investment  income then from realized
short-term  capital gains and other sources, if necessary. Net long-term capital
gains,  if  any,  in  excess  of  loss  carryforwards  are  distributed at least
annually. Dividends and distributions are recorded on the ex-dividend date.

Income   distributions   and  capital  gain   distributions  are  determined  in
accordance  with income tax regulations which may differ from generally accepted
accounting principles.

DEFERRED  ORGANIZATION  EXPENSES: A  total of $63,500 was incurred in connection
with  the  organization  of  the  Trust.  All  such costs were reimbursed by the
Adviser.

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   and   an    Administration
                                          Agreement   with  BlackRock  Financial
                                          Management,  Inc.  (the  "Adviser"), a
                                          wholly-owned  corporate  subsidiary of
                                          BlackRock  Advisors, Inc., which is an
indirect majority-owned  subsidiary  of  PNC  Bank,  N.A., and an Administration
Agreement   with   Prudential   Investments   Fund   Management   LLC   ("PIFM")
(collectively  with the Advisor, the "Administrators"), an indirect wholly-owned
subsidiary of The Prudential Insurance Co. of America.

      The  investment  fee  paid  to  the Adviser is computed weekly and payable
monthly  at  an  annual  rate  of  1.05%  of  the  Trust's  managed  assets. The
administration  fee  paid  to each of the Administrators is also computed weekly
and  payable  monthly  at an annual rate of 0.05% of the Trust's managed assets,
or net assets plus leverage.


                                       9

<PAGE>

      Pursuant  to  the  agreements, the Adviser provides continuous supervision
of  the investment portfolio and pays the compensation of officers of the Trust.
The  Administrators  pay  occupancy and certain clerical and accounting costs of
the Trust. The Trust bears all other costs and expenses.

NOTE 3. PORTFOLIO                                  Purchases   and    sales   of
SECURITIES                                         investment  securities, other
                                                   than  short-term  investments
for the period ended April 30, 1999  aggregated  $196,028,745  and  $60,073,152,
respectively.

      The  Trust  may  invest  in  securities  which are not readily marketable,
including  those  which  are  restricted  as to disposition under securities law
("restricted  securities").  At  April  30,  1999,  the  Trust  held  42% of its
portfolio assets in securities restricted as to resale.


      The  federal  income tax basis of the Trust's investments at April 30,1999
was   substantially   the  same  as  the  basis  for  financial  reporting  and,
accordingly,  net  unrealized  appreciation  for federal income tax purposes was
$3,154,902   (gross   unrealized   appreciation-$4,751,163,   gross   unrealized
depreciation-$1,596,261).


NOTE  4.  BORROWINGS                      LOAN  PAYABLE:  The Trust  has  a  $47
                                          million   dollar   committed    credit
facility (the "facility").  Under the terms of the facility, the fund borrows at
the London Interbank  Overnight Rate ("LIBOR") plus facility and  administrative
fees. In addition,  the fund pays a liquidity  fee on the unused  portion of the
facility.  The fund may  borrow up to  33-1/3%  of its  total  assets up to the
committed amount.  In accordance with the terms of the debt agreement,  the fund
has pledged its portfolio assets as collateral for the bank loan.

      For  the  period  February  10,  1999 (commencement of borrowings) through
April  30,  1999,  the  Fund  borrowed  a  daily  weighted  average  balance  of
$32,367,089 at a weighted average interest rate at 5.44%.

REVERSE  REPURCHASE  AGREEMENTS: The  Trust  may  enter  into reverse repurchase
agreements  with  qualified,  third  party  broker-dealers  as determined by and
under  the direction of the Trust's Board of Directors. Interest on the value of
reverse  repurchase  agreements issued and outstanding is based upon competitive
market  rates  at  the  time  of  issuance.  At the time the Trust enters into a
reverse  repurchase agreement, it establishes and maintains a segregated account
with  the  lender,  containing  liquid  high grade securities having a value not
less  than  the  repurchase  price  including  accured  interest, of the reverse
repurchase  aggrement.  The  Trust  did  not  enter  into any reverse repurchase
agreements during the period.


NOTE  5. CAPITAL                          There  are an unlimited amount of $.01
                                          par  value common stock authorized. Of
the  6,306,667  shares  outstanding  at April 30, 1999,  the Adviser owned 6,667
shares. During the period ended April 30, 1999 the Trust issued 5,800,000 shares
in connection with it's initial public offering and 500,000 shares in connection
with the exercise of the underwriters over allotment  option.  Offering costs of
$126,133  incurred in connection  with the public  offering of common stock have
been changed to paid-in capital in excess of par. Prudential Securities Inc., an
affiliate of PIFM, advised the Trust that it received  approximately $571,000 in
underwriting fees.


NOTE  6.  DIVIDENDS                       Since   April  30,  1999, the Board of
                                          Directors  of  the  Trust  declared  a
dividend from undistributed earnings of $0.126563 per share payable May 28, 1999
to shareholders of record on May 15, 1999.




                                       10



<PAGE>

- --------------------------------------------------------------------------------
                         THE BLACKROCK HIGH YIELD TRUST
                           DIVIDEND REINVESTMENT PLAN
- --------------------------------------------------------------------------------

     Pursuant   to   the   Trust's  Dividend  Reinvestment  Plan  (the  "Plan"),
shareholders  are  automatically enrolled to have all distributions of dividends
and  capital  gains reinvested by State Street Bank and Trust Company (the "Plan
Agent")  in  Trust  shares  pursuant  to the Plan. Shareholders who elect not to
participate  in the Plan will receive all distributions in cash paid by check in
United  States  dollars mailed directly to the shareholders of record (or if the
shares  are  held  in  street or other nominee name, then to the nominee) by the
transfer agent, as dividend disbursing agent.

     The  Plan  Agent  serves as agent for the shareholders in administering the
Plan.  After  the Trust declares a dividend or determines to make a capital gain
distribution,  the  transfer  agent  will  acquire  shares for the participants'
accounts,  depending  upon the circumstances described below, either (i) through
receipt  of  unissued  but  authorized  shares  from  the  Trust  ("newly issued
shares")  or  (ii)  by purchase of outstanding shares on the open market, on the
New  York  Stock  Exchange  or  elsewhere  ("open-market purchases"). If, on the
dividend  payment  date,  the net asset value per share is equal to or less than
the  market price per share plus estimated brokerage commissions (such condition
being  referred  to  herein as "market premium"), the transfer agent will invest
the  dividend  amount  in newly issued shares on behalf of the participants. The
number  of newly issued shares to be credited to each participant's account will
be  determined  by  dividing  the dollar amount of the dividend by the net asset
value  per share (but in no event less than 95% of the then current market price
per  share) on the date the shares are issued. If, on the dividend payment date,
the  net  asset value per share is greater than the market value per share (such
condition  being  referred  to  herein as "market discount"), the transfer agent
will   invest   the  dividend  amount  in  shares  acquired  on  behalf  of  the
participants in open-market purchases.

     Participants  in the Plan may withdraw from the Plan upon written notice to
the  Plan  Agent and will receive certificates for whole Trust shares and a cash
payment will be made for any fraction of a Trust share.

     The  Plan  Agent's  fees  for the handling of the reinvestment of dividends
and  distributions will be paid by the Trust. However, each participant will pay
a  pro  rata  share  of  brokerage commissions incurred with respect to the Plan
Agent's  open  market purchases in connection with the reinvestment of dividends
and  distributions.  The  automatic  reinvestment of dividends and distributions
will  not  relieve participants of any federal, state or local income taxes that
may be payable on such dividends or distributions.

     The  Trust  reserves the right to amend or terminate the Plan as applied to
any  dividend  or  distribution  paid subsequent to written notice of the change
sent  to  all  shareholders of the Trust at least 90 days before the record date
for  the dividend or distribution. The Plan also may be amended or terminated by
the  Plan Agent upon at least 90 days' written notice to all shareholders of the
Trust.  All  correspondence  concerning  the Plan should be directed to the Plan
Agent at (800) 699-1BFM. The addresses are on the front of this report.

- --------------------------------------------------------------------------------
                             ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------

     There  have  been  no material changes in the Trust's investment objectives
or  policies  that  have not been approved by the shareholders or to its charter
or  by-laws  or  in the principal risk factors associated with investment in the
Trust.  There  have been no changes in the persons who are primarily responsible
for the day-to-day management of the Trust's portfolio.

     YEAR  2000  READINESS  DISCLOSURE. The Trust is currently in the process of
evaluating  its  information technology infrastructure for Year 2000 compliance.
Substantially  all  of  the  Trust's  information  systems  are  supplied by the
Adviser.  The  Adviser  has  advised  the  Trust that it is currently evaluating
whether  such systems are year 2000 compliant and that it expects to incur costs
of   up  to  approximately  five  hundred  thousand  dollars  to  complete  such
evaluation  and  to make any modifications to its systems as may be necessary to
achieve  Year  2000  compliance.  The  Adviser has advised the Trust that it has
fully  tested its systems for Year 2000 compliance. The Trust may be required to
bear  a portion of such cost incurred by the Adviser in this regard. The Adviser
has  advised  the  Trust  that it does not anticipate any material disruption in
the  operations  of  the  Trust  as  a  result  of any failure by the Adviser to
achieve  Year 2000 compliance. There can be no assurance that the costs will not
exceed  the  amount  referred  to  above or that the Trust will not experience a
disruption in operations.

     The  Adviser  has advised the Trust that it is in the process of evaluating
the  Year 2000 compliance of various suppliers of the Adviser and the Trust. The
Adviser  has  advised  the Trust that it has communicated with such suppliers to
determine  their Year 2000 compliance status and the extent to which the Adviser
or  the  Trust  could be affected by any supplier's Year 2000 compliance issues.
To  date,  the  Adviser  has  received  responses  from  all such suppliers with
respect  to  their  Year 2000 compliance, and there can be no assurance that the
systems  of  such  suppliers,  who  are beyond the Trust's control, will be Year
2000  compliant.  In  the event that any of the Trust's significant suppliers do
not  successfully  and timely achieve Year 2000 compliance, the Trust's business
or  operations  could  be  adversely affected. The Adviser has advised the Trust
that  it  is  in  the  process  of  preparing  a  contingency plan for Year 2000
compliance  by  its  suppliers.  There can be no assurance that such contingency
plan will be successful in preventing a disruption of the Trust's operations.

     The  Trust  is  designating  this  disclosure  as  its  Year 2000 readiness
disclosure  for  all  purposes  under  the  Year  2000 Information and Readiness
Disclosure  Act  and  the  foregoing  information  shall  constitute a Year 2000
statement for purposes of that Act.


                                       11

<PAGE>

- --------------------------------------------------------------------------------
                         THE BLACKROCK HIGH YIELD TRUST
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE

The  BlackRock  High  Yield  Trust's  primary investment objective is to provide
high  current income with a secondary objective of capital appreciation. To this
end,  the  Trust  will  be invested primarily in a diversified portfolio of high
yield bonds and other income securities.

WHO MANAGES THE TRUST?

BlackRock   Financial   Management,  Inc.  ("BlackRock")  is  an  SEC-registered
investment  adviser.  BlackRock  and  its  affiliates currently manage over $141
billion  on  behalf  of  taxable  and  tax-exempt  clients worldwide. Strategies
include  fixed  income,  equity  and  cash and may incorporate both domestic and
international   securities.   Domestic   fixed  income  strategies  utilize  the
government,  mortgage,  corporate  and municipal bond sectors. BlackRock manages
twenty-one  closed-end  funds that are traded on either the New York or American
stock  exchanges,  and  a  $25 billion family of open-end equity and bond funds.
Current accounts number over 450, domiciled in the United States and overseas.

WHAT CAN THE TRUST INVEST IN?

Under  normal  market  conditions,  the  Trust  will  invest at least 80% of its
assets  in  high  yield  securities.  High yield securities are generally income
securities  which,  if  rated,  are  rated  lower  than Baa by Moody's Investors
Service  (or  "Moody's") , lower than BBB by Standard & Poor's Ratings Group (or
"S&P")  or  similarly  rated  by  other  rating  agencies.  These securities may
include  corporate  bonds, zero coupon bonds, bank loans, mezzanine investments,
collateralized  bond  obligations, mortgage-related, asset-backed securities and
foreign securities.

WHAT IS THE ADVISER'S INVESTMENT STRATEGY?

In  pursuing  the  Trust's  investment  objective  by  investing  in  high yield
securities,  the  Adviser  will  seek to identify issuers and industries that it
believes  are likely to experience stable or improving financial conditions. The
Adviser  will  also  consider  relative value among issuers based on anticipated
cash   flow,   interest  or  dividend  coverage,  asset  coverage  and  earnings
prospects.  The  Adviser  will  apply  its  risk  management  framework by using
proprietary  technology  and  value-oriented  security selection to identify the
securities  that  are  expected  to  deliver the highest yield for the amount of
risk  assumed.  The  Trust's  investment  strategy  emphasizes  risk  management
through  the  following:  creating  a diversified portfolio of securities within
various   sectors   of   the   high   yield   market;   performing   individual,
company-by-company  credit  research  to  seek the selection of securities which
the  Adviser  believes  will  be  able  to meet its debt obligations; performing
sector  analysis  to  determine  the  sectors  which the Advisor expects to have
stable  or  improving  credit quality in the future; and utilizing the expertise
and experience of the management team to make investment decisions.

HOW  ARE  THE  TRUST'S  SHARES  PURCHASED AND SOLD? DOES THE TRUST PAY DIVIDENDS
REGULARLY?

The  Trust's  shares  are  traded  on the New York Stock Exchange which provides
investors  with  liquidity on a daily basis. Orders to buy or sell shares of the
Trust  must  be  placed  through  a  registered broker or financial adviser. The
Trust  pays  monthly dividends which are typically paid on the last business day
of  the  month.  For  shares  held  in  the shareholder's name, dividends may be
reinvested  in additional shares of the fund through the Trust's transfer agent,
State  Street  Bank  &  Trust  Company.  Investors  who wish to hold shares in a
brokerage  account  should  check  with  their  financial  adviser  to determine
whether their brokerage firm offers dividend reinvestment services.

LEVERAGE CONSIDERATIONS IN THE TRUST

Under  current  market  conditions,  leverage increases the income earned by the
Trust.  The  Trust  employs  leverage  primarily  through the utilization of its
committed  credit  facility.  Leverage  permits  the  Trust  to  borrow money at
short-term  rates  and reinvest that money in longer-term assets which typically
offer  higher  interest  rates.  The difference between the cost of the borrowed
funds  and  the  income  earned on the proceeds that are invested in longer term
assets  is  the benefit to the Trust from leverage. In general, the portfolio is
typically leveraged at approximately 331|M/3% of total assets.

Leverage  also increases the duration (or price volatility of the net assets) of
the  Trust,  which  can  improve the performance of the fund in a declining rate
environment,  but  can  cause  net assets to decline faster than the market in a
rising environment.


                                       12
<PAGE>

BlackRock's  portfolio  managers  continuously  monitor and regularly review the
Trust's  use  of  leverage  and  the  Trust may reduce, or unwind, the amount of
leverage  employed  should  BlackRock  consider that reduction to be in the best
interests of the shareholders.

SPECIAL CONSIDERATIONS AND RISK FACTORS RELEVANT TO THE TRUST

THE  TRUST  IS  INTENDED  TO  BE  A LONG-TERM INVESTMENT AND IS NOT A SHORT-TERM
TRADING VEHICLE.

INVESTMENT  OBJECTIVE. Although  the  investment  objective  of  the Trust is to
provide  high current income, there can be no assurance that this objective will
be achieved.

LOWER-GRADE  SECURITIES. As  a  "high  yield  fund," the majority of the Trust's
assets  will  be  invested  in  high-risk,  high yield securities of lower grade
quality,  which  are  commonly  referred  to as "junk bonds." With its portfolio
consisting  predominantly  of  lower  grade  securities, the Trust is exposed to
greater  risks  than  a  fund  that owns higher grade securities. Because of the
substantial  risks  associated  with  lower  grade securities, an investor could
lose  money  on an investment in Shares of the Trust, both in the short-term and
the  long-term.  An  investor  should  consider  some  risks  including, but not
limited to, credit risk.

CREDIT  RISK. Credit  risk  refers  to  an  issuer's ability to make payments of
principal  and interest when they are due. Because the Trust will own securities
with  low credit quality, it will be subject to a high level of credit risk. The
credit  quality  of such securities is considered speculative by rating agencies
with  respect  to  the issuer's ability to pay interest or principal. The prices
of   lower   grade   securities   are   more  sensitive  to  negative  corporate
developments,  such  as  a  decline  in profits, or adverse economic conditions,
such  as  recession,  than are the prices of higher grade securities. Securities
that  have  longer maturities or that do not make regular interest payments also
fluctuate  more  in  price  in  response to negative corporate or economic news.
Therefore,  lower  grade  securities  may  experience  high default rates, which
would  mean  that  the Trust may lose some of its investment in such securities,
which  would  adversely  affect  the Trust's net asset value and ability to make
distributions.  The  effects  of this default risk are significantly greater for
the  holders  of  lower grade securities often are unsecured and subordinated to
the payment rights of other creditors of the issuer.

LEVERAGE. The  Trust  utilizes  leverage  through its committed credit facility,
which  involves  special risks. The Trust's net asset value and market value may
be more volatile due to its use of leverage.

MARKET  PRICE  OF  SHARES. The shares of closed-end investment companies such as
the  Trust  trade  on  the  New  York  Stock Exchange and as such are subject to
supply  and  demand influences. As a result, shares may trade at a discount or a
premium to their net asset value.

CORPORATE  DEBT  SECURITIES. The  value  of  corporate debt securities generally
varies  inversely  with  changes  in prevailing market interest rates. The Trust
may  be  subject  to  certain  reinvestment  risks  in environments of declining
interest rates.

ZERO   COUPON  SECURITIES. Such  securities  receive  no  cash  flows  prior  to
maturity;  therefore,  interim  price  movement  on the securities are generally
more  sensitive  to  interest  rate movements then securities that make periodic
coupon  payments. These securities appreciate in value over time and can play an
important role in helping the Trust achieve its primary objectives.

ILLIQUID  SECURITIES. The  Trust  may  invest  in  securities that are illiquid,
although  under  current  market conditions the Trust expects to do so to only a
limited extent. These securities involve special risks.

NON-U.S.  SECURITIES. The  Trust may invest less than 35% of its total assets in
non-U.S.  dollar-denominated  securities  which  involve  special  risks such as
currency, political and economic risks.

ANTITAKEOVER  PROVISIONS. Certain  antitakeover provisions will make a change in
the  Trust's  business  or management more difficult without the approval of the
Trust's  Board of Directors and may have the effect of depriving shareholders of
an  opportunity  to  sell  their shares at a premium above the prevailing market
price.


                                       13

<PAGE>

- --------------------------------------------------------------------------------
                         THE BLACKROCK HIGH YIELD TRUST
                                    GLOSSARY
- --------------------------------------------------------------------------------

<TABLE>
<S>                          <C>
CLOSED-END FUND:             Investment  vehicle  which  initially  offers a fixed  number of shares  and
                             trades on a stock exchange. The fund invests in a portfolio of securities in
                             accordance with its stated investment objectives and policies.

COMMERCIAL MORTGAGE          Mortgage-backed securities secured or backed by mortgage loans on commercial
                             properties. BACKED SECURITIES (CMBS):

DISCOUNT:                    When a fund's net asset  value is greater  than its stock  price the fund is
                             said to be trading at a discount.

DIVIDEND:                    This is income  generated by securities in a portfolio  and  distributed  to
                             shareholders  after the deduction of expenses.  This Trust declares and pays
                             dividends on a monthly basis.

DIVIDEND REINVESTMENT:       Shareholders  may elect to have all  distributions  of dividends and capital
                             gains automatically reinvested into additional shares of the Trust.

GOVERNMENT SECURITIES:       Securities  issued  or  guaranteed  by the  U.S.  government,  or one of its
                             agencies or  instrumentalities,  such as GNMA (Government  National Mortgage
                             Association),   FNMA  (Federal  National  Mortgage  Association)  and  FHLMC
                             (Federal Home Loan Mortgage Corporation).

MARKET PRICE:                Price  per  share of a  security  trading  in the  secondary  market.  For a
                             closed-end  fund, this is the price at which one share of the fund trades on
                             the  stock  exchange.  If you were to buy or sell  shares,  you would pay or
                             receive the market price.

NET ASSET VALUE (NAV):       Net asset value is the total market value of all securities and other assets
                             held by the  Trust,  plus  income  accrued  on its  investments,  minus  any
                             liabilities  including  accrued  expenses,  divided  by the total  number of
                             outstanding  shares. It is the underlying value of a single share on a given
                             day.  Net asset value for the Trust is  calculated  weekly and  published in
                             BARRON'S  on  Saturday,  THE NEW YORK TIMES and THE WALL  STREET  JOURNAL on
                             Monday.

PREMIUM:                     When a fund's  stock price is greater  than its net asset value, the fund is
                             said to be trading at a premium.
</TABLE>





                                       14



<PAGE>

- --------------------------------------------------------------------------------
                     BLACKROCK FINANCIAL MANAGEMENT, INC.
                          SUMMARY OF CLOSED-END FUNDS
- --------------------------------------------------------------------------------



TAXABLE TRUSTS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                 STOCK      MATURITY
                                                                SYMBOL        DATE
PERPETUAL TRUSTS                                               ----------   ---------
<S>                                                              <C>          <C>
The BlackRock Income Trust Inc.                                   BKT         N/A
The BlackRock North American Government Income Trust Inc.         BNA         N/A
The BlackRock High Yield Trust                                    BHY         N/A


TERM TRUSTS
The BlackRock 1999 Term Trust Inc.                                BNN        12/99
The BlackRock Target Term Trust Inc.                              BTT        12/00
The BlackRock 2001 Term Trust Inc.                                BLK        06/01
The BlackRock Strategic Term Trust Inc.                           BGT        12/02
The BlackRock Investment Quality Term Trust Inc.                  BQT        12/04
The BlackRock Advantage Term Trust Inc.                           BAT        12/05
The BlackRock Broad Investment Grade 2009 Term Trust Inc.         BCT        12/09
</TABLE>

TAX-EXEMPT TRUSTS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                       STOCK      MATURITY
                                                                       SYMBOL       DATE
PERPETUAL TRUSTS                                                     ---------   ---------
<S>                                                                    <C>         <C>
The BlackRock Investment Quality Municipal Trust Inc.                   BKN         N/A
The BlackRock California Investment Quality Municipal Trust Inc.        RAA         N/A
The BlackRock Florida Investment Quality Municipal Trust                RFA         N/A
The BlackRock New Jersey Investment Quality Municipal Trust Inc.        RNJ         N/A
The BlackRock New York Investment Quality Municipal Trust Inc.          RNY         N/A

TERM TRUSTS
The BlackRock Municipal Target Term Trust Inc.                          BMN        12/06
The BlackRock Insured Municipal 2008 Term Trust Inc.                    BRM        12/08
The BlackRock California Insured Municipal 2008 Term Trust Inc.         BFC        12/08
The BlackRock Florida Insured Municipal 2008 Term Trust                 BRF        12/08
The BlackRock New York Insured Municipal 2008 Term Trust Inc.           BLN        12/08
The BlackRock Insured Municipal Term Trust Inc.                         BMT        12/10
</TABLE>

IF  YOU  WOULD LIKE FURTHER INFORMATION PLEASE DO NOT HESITATE TO CALL BLACKROCK
                           AT (800) 227-7BFM (7236)
                    OR CONSULT WITH YOUR FINANCIAL ADVISOR.


                                       15



<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
Dennis Schaney, VICE PRESIDENT
Richard M. Shea, VICE PRESIDENT/TAX
Henry Gabbay, TREASURER
James Kong, ASSISTANT TREASURER
Karen H. Sabath, SECRETARY

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


ADMINISTRATOR
Prudential Investments Fund Management LLC
Gateway Center Three
100 Mulberry Street
Newark, NJ 07102-4077

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

     The  accompanying  financial  statements  as  of  April  30,  1999 were not
audited and accordingly no opinion is expressed on them.

 This  report  is for shareholder information. This is not a prospectus intended
for use in the purchase or sale of any securities.

                         THE BLACKROCK HIGH YIELD TRUST
                 c/o Prudential Investments Fund Management LLC
                              Gateway Center Three
                                100 Mulberry St.
                             Newark, NJ 07102-4077
                                (800) 227-7BFM



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


THE BLACKROCK
HIGH YIELD
TRUST
===================
SEMI-ANNUAL REPORT
APRIL 30, 1999


[GRAPHIC OMITTED]



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