BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC
N-30D, 1998-07-01
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- --------------------------------------------------------------------------------
         THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                       SEMI-ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------



                                                                    May 31, 1998



Dear Shareholder:

      Domestic  bonds  provided  investors  with modest total returns during the
past six months,  as interest rates generally  fell.  Supporting the bond market
was favorable inflation news and the belief that the Federal Reserve is unlikely
to raise short-term interest rates in the immediate future.

      U.S.  economic  growth has remained  relatively  robust,  spurred by lower
interest rates and strong consumer  demand.  However,  the economic  weakness of
Asia looms large.  While the fallout from the Asian fiscal  crisis  probably has
yet to  materialize  in the U.S., we expect a "slowdown" in Asia's  economies to
slow U.S.  growth in 1998.  While we expect that  interest  rates will be fairly
stable in the  near-term,  our  longer-term  outlook for the bond market remains
optimistic,  based on the fundamentally  favorable backdrop of low inflation,  a
currently high level of real yields, and declining Treasury borrowing.

      As you may know, the five investment  management  firms that comprised the
PNC Asset Management  Group have  consolidated  under BlackRock,  resulting in a
$118  billion  money  management  firm.  We look  forward  to using  our  global
investment management expertise to present exciting investment  opportunities to
closed-end fund shareholders in the future.

      This report  contains  comments from your Trust's  managers  regarding the
markets and  portfolio  in addition to the Trust's  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, 1998
Dear Shareholder:

      We are pleased to present the  semi-annual  report for The  BlackRock  New
York  Investment  Quality  Municipal Trust Inc. ("the Trust") for the six months
ended  April 30,  1998.  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  non-diversified,  actively  managed  closed-end  bond fund
whose shares are traded on the American  Stock  Exchange under the symbol "RNY".
The Trust's  investment  objective  is to provide  high  current  income that is
exempt from regular federal and New York state income taxes  consistent with the
preservation  of capital.  The Trust seeks to achieve its objective by investing
in  investment  grade  (rated  "AAA"  to "BBB" by a major  rating  agency  or of
equivalent  quality)  municipal debt securities  issued by local  municipalities
throughout New York.

      The table below  summarizes the changes in the Trust's stock price and net
asset value over the past year:

<TABLE>
<CAPTION>

                                              ---------------------------------------------------------------------
                                                 4/30/98      10/31/97        Change          High           Low
                                              ---------------------------------------------------------------------
<S>                                              <C>           <C>              <C>          <C>           <C>   
  Stock Price                                    $14.25        $14.25           --           $15.25        $14.00
- -------------------------------------------------------------------------------------------------------------------
  Net Asset Value (NAV)                          $15.03        $14.91          .80%          $15.42        $14.83
- -------------------------------------------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

      The first four months of 1998 have witnessed  continued rapid expansion of
the U.S.  economy.  GDP  growth  is  estimated  at an annual  rate of 4.2%,  far
exceeding  the  historical  non-inflationary  level of 2%.  Despite  the  strong
economic growth,  inflation stayed surprisingly subdued.  After rising only 1.7%
in 1997,  inflation inched higher at a 0.2% annual rate for the first quarter of
1998.  One  explanation  for the absence of inflation in the U.S.  economy stems
from the aftermath of the Asian crisis. U.S. exports to Asia have slowed,  while
the strength of the dollar caused cheaper Asian imports to flood the U.S. market
and exert downward price pressure on domestic goods.

      The Treasury  market  rallied  during the fourth  quarter of 1997 and into
1998  before  giving  back  some  gains  during  the  past few  months.  For the
semi-annual  period,  the yield of the 10-year Treasury security fell from 5.83%
on October 31, 1997 to 5.67% on April 30, 1998.  The strong  performance  of the
Treasury market was in response to moderating economic growth, low inflation and
a "flight to  quality"  from  investors  seeking a safe  haven in U.S.  Treasury
securities.  Continued  expectations  that the Asian  crisis will slow  economic
growth  and force the Fed to leave the  Federal  funds rate  unchanged  provided
additional  support  to the bond  market.  With  Treasury  supply  waning due to
surplus in the federal budget and increased foreign demand for Treasuries due to
their U.S. government backing and relatively  attractive yields, we anticipate a
positive environment for Treasuries for the balance of 1998.

      Municipal bonds underperformed the taxable domestic bond market during the
past six months,  returning  2.77% (as measured by the Lehman  Municipal  Index)
versus the Lehman  Aggregate  Index's 3.58% on a pre-tax basis.  The main forces
behind  municipal bond  underperformance  were  increased  municipal bond supply
(fueled  by the  lowest  municipal  interest  rates  since the 1960s) and retail
investors  focus  on  the  equity  markets.   We  believe  that  municipals  are
attractively  valued versus Treasuries and our outlook for municipal  securities
is favorable.  The robust economy  continues to strengthen the credit quality of
most  issuers,  and we expect  that the  attractive  taxable  equivalent  yields
offered by municipal securities should bring investors back into the market.

                                       2

<PAGE>

      New York State's economy  remained strong over the past six months and the
State's  fiscal year 1998 budget  surplus is  projected  at $1.9  billion.  Wall
Street's  prosperity,  fueled by the  continued  bull  market,  has  resulted in
increased tax revenues that have contributed to the State's income growth. These
increased  revenues  have  mitigated  the impact of Governor  Pataki's tax cuts;
further  tax  reductions  have  been  proposed  to  make  New  York  State  more
economically competitive.


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.

      Additionally,  the  Trust  employs  leverage  to  enhance  its  income  by
borrowing at  short-term  municipal  rates and  investing the proceeds in longer
maturity  issues  that have  higher  yields.  The  degree to which the Trust can
benefit  from its use of  leverage  may affect its  ability to pay high  monthly
income.  At the end of the semi-annual  period,  the Trust's leverage amount was
33% of total assets.  During the past six months,  the Trust's  borrowing  costs
have remained favorable.

      Within the municipal  market, we find the best relative value on the yield
curve to be in the 14 to 17 year  sector of the yield  curve,  which we  believe
offers the most  attractive  taxable  equivalent  yields for the least amount of
incremental duration.

      The  following  charts  compare the  Trust's  current and October 31, 1997
asset composition and credit quality allocations:


                                    SECTOR BREAKDOWN

- --------------------------------------------------------------------------------
       SECTOR                               APRIL 30, 1998     OCTOBER 31, 1997
- --------------------------------------------------------------------------------
     Industrial                                   19%                 19%
- --------------------------------------------------------------------------------
     City, State & County                         16%                 16%
- --------------------------------------------------------------------------------
     Lease Revenue                                14%                 14%
- --------------------------------------------------------------------------------
     Transportation                                7%                  7%
- --------------------------------------------------------------------------------
     Housing                                       7%                  7%
- --------------------------------------------------------------------------------
     University                                    6%                  6%
- --------------------------------------------------------------------------------
     Power                                         4%                  4%
- --------------------------------------------------------------------------------
     Resource Recovery                             4%                  4%
- --------------------------------------------------------------------------------
     Water & Sewer                                 4%                  4%
- --------------------------------------------------------------------------------
     School                                        4%                  4%
- --------------------------------------------------------------------------------
     Special Tax                                   4%                  4%
- --------------------------------------------------------------------------------
     Waste & Pollution Control                     4%                  4%
- --------------------------------------------------------------------------------
     Hospital                                      4%                  4%
- --------------------------------------------------------------------------------
     Sales Tax Revenue                             3%                  3%
- --------------------------------------------------------------------------------

                                       3

<PAGE>


- --------------------------------------------------------------------------------
 STANDARD & POOR'S/MOODY'S/FITCH'S
           CREDIT RATING                 APRIL 30, 1998     OCTOBER 31, 1997
- --------------------------------------------------------------------------------
              AAA/Aaa                          34%                 34%
- --------------------------------------------------------------------------------
                A/A                            45%                 48%
- --------------------------------------------------------------------------------
              BBB/Baa                          21%                 18%
- --------------------------------------------------------------------------------

      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 New
York  Investment  Quality  Municipal  Trust  Inc.  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 Kapito                       /s/ Kevin Klingert
- -----------------------------------     -----------------------------------
Robert Kapito                           Kevin Klingert
Vice Chairman and Portfolio Manager     Managing Director and Portfolio Manager
BlackRock Financial Management, Inc.    BlackRock Financial Management, Inc.





- --------------------------------------------------------------------------------
         THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
- --------------------------------------------------------------------------------
   Symbol on American Stock Exchange:                            RNY
- --------------------------------------------------------------------------------
   Initial Offering Date:                                   May 28, 1993
- --------------------------------------------------------------------------------
   Closing Stock Price as of 4/30/98:                          $14.25
- --------------------------------------------------------------------------------
   Net Asset Value as of 4/30/98:                              $15.03
- --------------------------------------------------------------------------------
   Yield on Closing Stock Price as of 4/30/98 ($14.25)1:        5.74%
- --------------------------------------------------------------------------------
   Current Monthly Distribution per Share2:                   $0.068125
- --------------------------------------------------------------------------------
   Current Annualized Distribution per Share2:                $0.81750
- --------------------------------------------------------------------------------

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.


                                       4
<PAGE>


<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED)
- ---------------------------------------------------------------------------------------------------------------------------

         PRINCIPAL                                                                           OPTION
          AMOUNT                                                                              CALL            VALUE
  RATING*  (000)                               DESCRIPTION                                 PROVISIONS       (NOTE 1)
- ---------------------------------------------------------------------------------------------------------------------------

<S>       <C>        <C>                                                                <C>              <C>
                     LONG-TERM INVESTMENTS--147.6%
                     New York--142.1%
AAA       $1,000     Battery Park City Auth. Rev., Ser. A, 5.50%, 11/01/26, AMBAC ....   11/06 at 102    $ 1,013,060
AAA        1,000     Metropolitan Trans. Auth. Rev., Commuter Fac., Ser. M, 6.00%,
                       7/01/14, AMBAC ................................................  7/03 at 101.5      1,062,760
AAA        1,000     Nassau Cnty., Gen. Impt., Ser. U, 5.25%, 11/01/14, AMBAC ........   No Opt. Call      1,001,940
                     New York City, G.O.,
A3         1,000       Ser. I, 5.875%, 3/15/18 .......................................  3/06 at 101.5      1,024,620
A3         1,000       Ser. D, 6.60%, 2/01/04 ........................................   No Opt. Call      1,091,150
                     New York City Ind. Dev. Agcy. Spec. Fac. Rev.,
                       Term. One Group Assoc. Proj.,
A3         1,000       6.00%, 1/01/08 ................................................    1/04 at 102      1,054,470
A3         1,000       6.00%, 1/01/15 ................................................    1/04 at 102      1,039,690
A3         1,000       6.10%, 1/01/09 ................................................    1/04 at 102      1,054,260
A2         1,000     New York City Mun. Wtr. Fin. Auth. Rev.,
                       Ser. A, 6.00%, 6/15/05 ........................................   No Opt. Call      1,097,650
AAA        1,000     New York City Trust Cultural Res. Rev., 
                       Museum of Modern Art, Ser. A, 5.50%, 1/01/21, AMBAC ...........    1/07 at 102      1,015,610
                     New York St. Dorm. Auth. Rev.,
AAA        1,505       City Univ. Sys., 6.125%, 7/01/04, AMBAC .......................            N/A      1,662,288
AAA        1,000       City Univ. Sys., 6.20%, 7/01/04, AMBAC ........................            N/A      1,108,500
AAA        1,000       St. Univ. Edl. Fac., 5.25%, 5/15/15, AMBAC ....................   No Opt. Call      1,015,660
A3         1,000       St. Univ. Edl. Fac., Ser. B, 6.00%, 5/15/04 ...................            N/A      1,093,700
A3         1,000       St. Univ. Edl. Fac., Ser. B, 6.25%, 5/15/04 ...................            N/A      1,106,770
A3         1,000       St. Univ. Edl. Fac., Ser. A, 6.25%, 5/15/03 ...................            N/A      1,096,300
A1         1,185     New York St. Energy Res. & Dev. Auth. Fac. Rev.,
                       Con. Ed. Co. Proj., 6.375%, 12/01/27 ..........................    12/01at 101      1,242,034
                     New York St. G.O.,
A2         1,000       Ser. A, 5.50%, 7/15/24 ........................................    7/06 at 101      1,005,640
A          1,000       Ser. B, 5.70%, 8/15/12 ........................................    8/05 at 102      1,039,830
Baa1       1,000     New York St. Hsg. Fin. Agcy. Rev., Service Contract,
                       Ser. A, 5.50%, 9/15/22 ........................................    3/03 at 102        998,670
A3         1,000     New York St. Local Gov't. Asst. Corp. Rev.,
                       Ser. B, 5.50%, 4/01/21 ........................................    4/03 at 102      1,002,100
Aa         1,000     New York St. Med. Care Fac., Fin. Agcy. Rev., 
                       St. Lukes Roosevelt Hosp., 5.625%, 8/15/18, FHA ...............    8/03 at 102      1,030,860
Baa1         900     New York St. Urban Dev. Corp. Rev., Youth Fac., 
                       5.875%, 4/01/09 ...............................................    4/04 at 102        944,928
AAA        1,000     Port Authority of NY & NJ, 5.70%, 10/15/20, MBIA ................   10/02 at 101      1,044,490
Baa2       1,000     Ulster Cnty. Res. Rec. Agcy., Solid Waste Sys. Rev., 
                       5.90%, 3/01/07 ................................................    3/03 at 102      1,052,510
Baa3       1,000     Westchester Cnty. Ind. Dev. Agcy., 
                       Res. Rec. Rev., 5.50%, 7/01/09 ................................    7/07 at 101      1,016,580
                                                                                                         -----------
                                                                                                          27,916,070
                                                                                                         -----------
</TABLE>
                       See Notes to Financial Statements.


                                       5

<PAGE>



<TABLE>
<CAPTION>
         PRINCIPAL                                                                           OPTION
          AMOUNT                                                                              CALL            VALUE
  RATING*  (000)                               DESCRIPTION                                 PROVISIONS       (NOTE 1)
- ---------------------------------------------------------------------------------------------------------------------------

<S>       <C>        <C>                                                                  <C>            <C>        
                     PUERTO RICO--5.5%
Baa1      $1,000     Puerto Rico Electric Pwr. Auth., Ser. T, 6.00%, 7/01/16 ..........   7/04 at 102    $ 1,073,580
                                                                                                         -----------
                     TOTAL INVESTMENTS--147.6% (cost $26,983,696) .....................                   28,989,650
                     Other assets in excess of liabilities--2.3% ......................                      454,871
                     Liquidation value of preferred stock--(49.9)% ....................                   (9,800,000)
                                                                                                         -----------
                     NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS--100% ...............                  $19,644,521
                                                                                                         ===========

</TABLE>



- ----------
 * Rating: Using the higher of Standard &Poor's, Moody's or Fitch's rating.
 + Option call provisions:  Date (month/year) and prices of the earliest 
   optional call or redemption. There may be other call provisions at varying 
   prices at later dates.
++ This bond is prerefunded. See Glossary for definition.


- --------------------------------------------------------------------------------
         The following abbreviations are used in portfolio descriptions:

              AMBAC -- American Municipal Bond Assurance Corporation        
              FHA   -- Federal Housing Administration                       

              G.O. -- General Obligation Bond              
              MBIA -- Municipal Bond Insurance Association 
- --------------------------------------------------------------------------------

                       See Notes to Financial Statements

                                       6

<PAGE>

- ------------------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
APRIL 30, 1998 (UNAUDITED)
- ------------------------------------------------------------------

ASSETS
Investments, at value (cost $26,983,696) (Note 1) ..   $28,989,650
Cash ...............................................        27,857
Interest receivable ................................       498,295
Deferred organization expenses and other assets ....           335
                                                       -----------
                                                        29,516,137
                                                       -----------
LIABILITIES
Investment advisory fee payable (Note 2) ...........         8,577
Dividends payable--preferred stock .................         4,162
Administrative fee payable (Note 2) ................         2,450
Other accrued expenses .............................        56,427
                                                       -----------
                                                            71,616
                                                       -----------
                                                 
                                                 
NET INVESTMENT ASSETS ..............................   $29,444,521
                                                       ===========
                                                 
Net investment assets were comprised of:         
  Common stock:                                  
    Par value (Note 4) .............................   $    13,071
    Paid-in capital in excess of par ...............    18,082,239
  Preferred stock (Note 4) .........................     9,800,000
                                                       -----------
                                                        27,895,310
  Undistributed net investment income ..............       190,603
  Accumulated net realized loss ....................     (647,346)
  Net unrealized appreciation ......................     2,005,954
                                                       -----------
Net investment assets, April 30, 1998 ..............   $29,444,521
                                                       ===========
                                                 
Net assets applicable to common shareholders .......   $19,644,521
                                                       ===========

Net asset value per common share:
  ($19,644,521 / 1,307,093 shares of
  common stock issued and outstanding) .............        $15.03
                                                            ======






- --------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT 
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF OPERATIONS
SIX MONTHS ENDED APRIL 30, 1998 (UNAUDITED)
- --------------------------------------------------------

NET INVESTMENT INCOME
Income
  Interest and discount earned ..............   $815,771
                                                --------

Expenses
  Investment advisory .......................     51,321
  Administration ............................     14,663
  Auction Agent .............................     12,000
  Reports to shareholders ...................      7,500
  Directors .................................      7,000
  Audit .....................................      5,000
  Transfer agent ............................      4,000
  Legal .....................................      3,000
  Custodian .................................      2,000
  Miscellaneous .............................      6,553
                                                --------
  Total expenses ............................    113,037
                                                --------
Net investment income .......................    702,734
                                                --------

UNREALIZED GAIN
ON INVESTMENTS (NOTE 3)

Net change in unrealized appreciation on
  investments ...............................    140,931
                                                --------


NET INCREASE IN NET INVESTMENT ASSETS
RESULTING FROM OPERATIONS ...................   $843,665
                                                ========



                                       7


<PAGE>
<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
STATEMENTS OF CHANGES IN NET INVESTMENT ASSETS (UNAUDITED)
- ---------------------------------------------------------------------------------------------------------------------------

                                                                                       SIX MONTHS        YEAR ENDED
                                                                                          ENDED          OCTOBER 31,
INCREASE IN NET INVESTMENT ASSETS                                                    APRIL 30, 1998         1997
                                                                                      ------------       ----------
<S>                                                                                    <C>              <C>  
Operations:
   Net investment income .......................................................      $   702,734       $ 1,400,108
   Net realized gain on investments ............................................            --              125,125
   Net change in unrealized appreciation on investments ........................          140,931         1,065,354
                                                                                      -----------       -----------
   Net increase in net investment assets resulting from operations .............          843,665         2,590,587
Dividends and distributions:
   To common shareholders from net investment income ...........................         (534,224)       (1,056,088)
   To preferred shareholders from net investment income ........................         (158,511)         (327,219)
   To common shareholders in excess of net realized gains on investments .......            --               (5,773)
   To preferred shareholders in excess of net realized gains on investments ....            --               (1,929)
                                                                                      -----------       -----------
   Total dividends and distributions ...........................................         (692,735)       (1,391,009)
                                                                                      -----------       -----------
     Total increase ............................................................          150,930         1,199,578

NET INVESTMENT ASSETS

Beginning of period ............................................................       29,293,591        28,094,013
                                                                                      -----------       -----------
End of period ..................................................................      $29,444,521       $29,293,591
                                                                                      ===========       ===========




</TABLE>


                        See Notes to Financial Statements


                                       8

<PAGE>

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
FINANCIAL HIGHLIGHTS (UNAUDITED)
- ---------------------------------------------------------------------------------------------------------------------------
                                                                                                               FOR THE
                                                                                                               PERIOD
                                                                                                            JUNE 4, 1993*
                                             SIX MONTHS                  YEAR ENDED OCTOBER 31,                THROUGH
                                                 ENDED     --------------------------------------------      OCTOBER 31,
PER SHARE OPERATING PERFORMANCE:            APRIL 30, 1998    1997         1996        1995        1994         1993
                                            --------------    ----         ----        ----        ----         ----
<S>                                             <C>         <C>          <C>          <C>         <C>           <C>     
Net asset value, beginning of period ......     $ 14.91     $ 14.00      $ 13.82      $  11.54    $  14.52      $  14.10
                                                -------     -------      -------      --------    --------      --------
Net investment income .....................         .54        1.07         1.05          1.06        1.03           .32
Net realized and unrealized gain (loss) 
  on investments ..........................         .11         .90          .18          2.29       (3.03)          .60
                                                -------     -------      -------      --------    --------      --------
Net increase (decrease) from 
  investment operations ...................         .65        1.97         1.23          3.35       (2.00)          .92
                                                -------     -------      -------      --------    --------      --------
Dividends and Distributions:
   Dividends from net investment income to:
    Common shareholders ...................        (.41)       (.81)        (.78)         (.79)       (.79)         (.20)
    Preferred shareholders ................        (.12)       (.25)        (.26)         (.28)       (.19)         (.04)
   Distributions in excess of net realized 
    gain on investments to:
    Common shareholders ...................          --         ***         (.01)           --          --            --
    Preferred shareholders ................          --         ***          ***            --          --            --
                                                -------     -------      -------      --------    --------      --------
Total dividends and distributions .........        (.53)      (1.06)       (1.05)        (1.07)       (.98)         (.24)
                                                -------     -------      -------      --------    --------      --------
Capital charge with respect to issuance
  of common and preferred stock ...........          --          --           --            --          --          (.26)
                                                -------     -------      -------      --------    --------      --------
Net asset value, end of period** ..........     $ 15.03     $ 14.91      $ 14.00      $  13.82    $  11.54      $  14.52#
                                                =======     =======      =======      ========    ========      ========
Per share market value, end of period** ...     $ 14.25     $ 14.25      $12.625      $  12.75    $  10.50      $  13.75
                                                =======     =======      =======      ========    ========      ========
TOTAL INVESTMENT RETURN : .................       2.79%      19.89%        5.43%        29.94%     (18.56%)       (1.13%)
RATIOS TO AVERAGE NET ASSETS OF COMMON
   SHAREHOLDERS++:
Expenses ..................................       1.15%       1.24%        1.37%         1.37%       1.29%          .99%+++
Net investment income before preferred 
  stock dividends .........................       7.14%       7.52%        7.63%         8.34%       7.76%         5.51%+++
Preferred stock dividends .................       1.61%       1.76%        1.91%         2.19%       1.46%         0.74%+++
Net investment income available to 
  common shareholders .....................       5.53%       5.76%        5.72%         6.15%       6.30%         4.77%+++
SUPPLEMENTAL DATA:
Average net assets of common shareholders 
  (in thousands) ..........................     $19,849     $18,608      $17,904      $ 16,545    $ 17,274      $ 18,773
Portfolio turnover rate ...................          0%         14%          79%          129%         71%            5%
Net assets of common shareholders,  
  end of period (in thousands) ............     $19,645     $19,494      $18,294      $ 18,068    $ 15,085      $ 18,980
Asset coverage per share of 
  preferred stock, end of period## ........     $75,624     $74,739      $71,668      $ 71,091    $126,963      $146,835
Preferred stock outstanding 
  (in thousands) ..........................     $ 9,800     $ 9,800      $ 9,800      $  9,800    $  9,800      $  9,800

</TABLE>
- ---------------------
  * Commencement of investment operations.
 ** Net asset value and market value are  published  in The Wall Street  Journal
    each Monday.
*** Actual amount paid to preferred  shareholders for the year ended October 31,
    1996 was $.0034  per common  share.  Actual  amount  paid for the year ended
    October  31,  1997 to common  shareholders  was  $0.004417  per share and to
    preferred shareholders was $0.001476 per common share.
  # Net asset value  immediately  after the closing of the first public offering
    was $14.01.
 ## A stock split occurred on July 24, 1995 (Note 4).
  + Total investment return is calculated assuming a purchase of common stock at
    the current  market value on the first day and a sale at the current  market
    price on the last day of each period reported.  Dividends and  distributions
    are assumed for  purposes of this  calculation  to be  reinvested  at prices
    obtained under the Trust's dividend reinvestment plan. This calculation does
    not reflect brokerage  commissions.  Total investment returns for periods of
    less than one year are not annualized. 
 ++ Ratios are calculated on the basis of income,  expenses and preferred  stock
    dividends applicable to both the common and preferred shares relative to the
    average net assets of common shareholders. 
+++ Annualized.

The information above represents the unaudited operating  performance data 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 common shares.


                       See Notes to Financial Statements.

                                       9

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK NEW YORK INVESTMENT
QUALITY MUNICIPAL TRUST INC.
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
- --------------------------------------------------------------------------------

NOTE 1. ACCOUNTING                      The   BlackRock   New  York   Investment
POLICIES                                Quality   Municipal   Trust  Inc.   (the
                                        "Trust")  was  organized  in Maryland on
April 12, 1993 as a non-diversified,  closed-end  management investment company.
The Trust's  investment  objective is to provide high current income exempt from
regular federal and New York state income tax consistent  with the  preservation
of capital.  The ability of issuers of debt securities held by the Trust to meet
their  obligations  may be  affected by economic  developments  in the state,  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:  Municipal securities  (including  commitments to purchase
such  securities  on a  "when-issued"  basis)  are valued on the basis of prices
provided  by  a  pricing  service  which  uses   information   with  respect  to
transactions  in bonds,  quotations  from bond dealers,  market  transactions in
comparable   securities  and  various   relationships   between   securities  in
determining values. 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 more than 60 days are valued at current
market  quotations.  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, or by amortizing their value on the 61st day prior to maturity, if
their original term to maturity from date of purchase exceeded 60 days.

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. The Trust accretes  original issue discounts or amortizes premium
on securities purchased using the interest method.

FEDERAL INCOME TAXES: For federal income tax purposes, the Trust is treated as a
separate taxpaying entity. It is the intent of the Trust to continue to meet the
requirements  of the Internal  Revenue Code  applicable to regulated  investment
companies  and to  distribute  all of its net income to  shareholders.  For this
reason and because  substantially  all of the Trust's  gross income  consists of
tax-exempt interest, no federal income tax provision is required.  

DIVIDENDS  AND  DISTRIBUTIONS:   The  Trust  declares  and  pays  dividends  and
distributions to common  shareholders  monthly from net investment  income,  net
realized short-term capital gains and other sources, if necessary. Net long-term
capital  gains,  if any,  in excess  of loss  carryforwards  may be  distributed
annually.  Dividends and  distributions  are recorded on the  ex-dividend  date.
Dividends and distributions to preferred shareholders are accrued and determined
as described in Note 4. 

DEFERRED  ORGANIZATION  EXPENSES:  A total of $19,000 was incurred in connection
with the organization of the Trust. These costs have been deferred and are being
amortized  ratably  over a period  of  sixty  months  from  the  date the  Trust
commenced  investment  operations.   

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     BlackRockFinancial
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.,   Administration   Agreement  with  Prudential   Investments  Fund
Management, LLC ("PIFM"), an indirect, wholly-owned subsidiary of The Prudential
Insurance Company of America.

   The investment fee paid to the Adviser is computed weekly and payable monthly
at an annual rate of 0.35% of the Trust's average weekly net investment  assets.
The  administration fee paid to PIFM is also computed weekly and payable monthly
at an annual rate of 0.10% of the Trust's average weekly net investment assets.

   Pursuant to the agreements,  the Adviser provides  continuous  supervision of
the investment  portfolio and pays the compensation of officers of the Trust who
are affiliated persons

                                       10

<PAGE>



of the Adviser. PIFM pays occupancy and certain clerical and accounting costs of
the Trust. The Trust bears all other costs and expenses.

NOTE 3. PORTFOLIO                       There  were no  purchases  and  sales of
SECURITIES                              investment   securities,    other   than
                                        short-term  investments,   for  the  six
months ended April 30, 1998.

   The federal income tax basis of the Trust's investments at April 30, 1998 was
substantially  the same as the basis for financial  reporting and,  accordingly,
net and gross unrealized appreciation was $2,005,954.

   For federal income tax purposes, the Trust had a capital loss carryforward at
October 31, 1997 of approximately $647,000 of which $448,000 will expire in 2002
and $199,000 will expire in 2003. Accordingly,  no capital gains distribution is
expected to be paid to shareholders until net gains have been realized in excess
of such amount.

NOTE 4. CAPITAL                         There are 200 million shares of $.01 par
                                        value  common stock  authorized.  Of the
1,307,093 shares  outstanding at April 30, 1998, the Adviser owned 7,093 shares.
As of April  30,  1998  there  were 392  shares  of  Preferred  Stock  Series F7
outstanding.  

   The Trust may classify or reclassify any unissued shares of common stock into
one or more series of preferred  stock. On July 29, 1993 the Trust  reclassified
196 shares of common stock and issued a series of Auction Market Preferred Stock
("Preferred  Stock") Series F7. The Preferred  Stock had a liquidation  value of
$50,000 per share plus any  accumulated  but unpaid  dividends.  On May 16, 1995
shareholders approved a proposal to split each share of preferred stock into two
shares and  simultaneously  reduce  each  share's  liquidation  preference  from
$50,000 to $25,000 plus any  accumulated but unpaid  dividends.  The stock split
occurred on July 24, 1995.

   Dividends on Series F7 are  cumulative at a rate  established  at the initial
public  offering and are typically reset every 7 days based on the results of an
auction.  Dividend rates ranged from 3.00% to 3.875% during the six months ended
April 30, 1998.

   The Trust may not declare dividends or make other  distributions on shares of
common  stock or purchase  any such  shares if, at the time of the  declaration,
distribution,  or  purchase,  asset  coverage  with  respect to the  outstanding
Preferred Stock would be less than 200%.

   The Preferred  Stock is redeemable at the option of the Trust, in whole or in
part, on any dividend  payment date at $25,000 per share plus any accumulated or
unpaid dividends whether or not declared. The Preferred Stock is also subject to
mandatory  redemption  at  $25,000  per  share  plus any  accumulated  or unpaid
dividends,  whether or not  declared  if certain  require-ments  relating to the
composition  of the  assets  and  liabilities  of the  Trust as set forth in the
Articles of Incorporation are not satisfied.

   The holders of  Preferred  Stock have voting  rights  equal to the holders of
common stock (one vote per share) and will vote  together with holders of shares
of common stock as a single class. However,  holders of Preferred Stock are also
entitled to elect two of the Trust's  directors.  In  addition,  the  Investment
Company Act of 1940 requires that along with approval by stockholders that might
otherwise  be  required,  the  approval  of the  holders  of a  majority  of any
outstanding  preferred shares, voting separately as a class would be required to
(a) adopt any plan of  reorganization  that would adversely affect the preferred
shares and (b) take any action requiring a vote of security holders,  including,
among other  things,  changes in the Trust's  subclassification  as a closed-end
investment company or changes in its fundamental investment restrictions.


NOTE 5. DIVIDENDS                       Subsequent to April 30, 1998,  the Board
                                        of  Directors  of the Trust  declared  a
dividend  from  undistributed  earnings of $.068125 per common share payable May
29, 1998 to  shareholders  of record on May 15, 1998. 

   For the period May 1, 1998 to May 31, 1998,  dividends  declared on Preferred
Stock totalled $30,240 in aggregate for the outstanding Preferred Stock.

                                       11

<PAGE>


- --------------------------------------------------------------------------------
         THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                           DIVIDEND REINVESTMENT PLAN
- --------------------------------------------------------------------------------

      Pursuant  to  the  Trust's  Dividend   Reinvestment   Plan  (the  "Plan"),
shareholders will  automatically 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  unless an election is made to receive  such
amounts in cash.  The Plan Agent will affect  purchases of shares under the Plan
in the open market.  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 Plan Agent will, as agent for the  participants,  receive the
cash payment and use it to buy Trust shares in the open market,  on the American
Stock Exchange or elsewhere,  for the participants' accounts. The Trust will not
issue any new shares in connection with the Plan.

      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 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.

      Experience  under  the Plan  may  indicate  that  changes  are  desirable.
Accordingly,  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 by the Plan
Agent upon at least 90 days' written  notice to all  shareholders  of the Trust.
The Plan may be  terminated by the Plan Agent or the Trust upon at least 30 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.

      The Annual Meeting of Trust  Shareholders  was held May 6, 1998 to vote on
      the following matters: 

     (1) To elect two Directors as follows:
         DIRECTOR                          CLASS        TERM         EXPIRING
         --------                          -----        -----         -------
         James Grosfeld ................     I         3 years         2000
         James Clayburn La Force, Jr. ..     I         3 years         2000

         Directors whose term of office continues beyond this meeting are Andrew
         F.Brimmer,  Kent Dixon, Laurence D. Fink, Walter F.Mondale,  Richard E.
         Cavanagh, Frank J. Fabozzi, and Ralph L. Schlosstein.

     (2) To ratify the selection of Deloitte & Touche LLP as independent  public
         accountants  of the Trust for the fiscal year ending  October 31, 1998.

         Shareholders  elected the two  Directors  and ratified the selection of
         Deloitte & Touche LLP. The results of the voting was as follows:

<TABLE>
<CAPTION>
                                                 VOTES FOR       VOTES AGAINST     ABSTENTIONS
                                                 --------         -----------      ----------
<S>                                              <C>                   <C>           <C>   
         James Grosfeld .......................  1,050,862             0             29,524
         James Clayburn La Force, Jr. .........  1,050,862             0             29,524
         Ratification of Deloitte & Touche LLP   1,058,859           8,323           13,204
</TABLE>


                                       12


<PAGE>

- --------------------------------------------------------------------------------
         THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE

The BlackRock New York Investment Quality Municipal Trust's investment objective
is to provide high current  income exempt from regular  Federal,  State and City
income tax consistent with the preservation of capital.


WHO MANAGES THE TRUST?

BlackRock  Financial  Management,   Inc.   ("BlackRock")  is  an  SEC-registered
investment  adviser.  BlackRock and its  affiliates  currently  manage over $118
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 $23 billion  family of open-end  equity and bond funds.
Current  institutional  clients  number 334,  domiciled in the United States and
overseas.


WHAT CAN THE TRUST INVEST IN?

Under normal  conditions,  the Trust expects to continue to manage its assets so
that at least 80% of its investments are rated at least  investment grade ("BBB"
by Standard & Poor's and "Baa" by Moody's  Investor  Services)  and up to 20% of
its  assets  may  instead be deemed to be of  equivalent  credit  quality by the
Adviser.  The Trust  intends  to  invest  substantially  all of the  assets in a
portfolio of investment grade New York Municipal Obligations, which include debt
obligations  issued by or on behalf of the  State,  its  political  subdivisions
(including the City),  agencies and  instrumentalities  and by other  qualifying
issuers  that pay  interest  which,  in the  opinion of the bond  counsel of the
issuer,  is exempt from  regular  Federal,  State and City income tax.  New York
Municipal Obligations may be issued to obtain funds for various public purposes,
including  the  construction  of such public  facilities  as airports,  bridges,
highways, housing,  hospitals, mass transportation,  schools, streets, water and
sewer works. Other public purposes for which New York Municipal  Obligations may
be issued include the  refinancing of outstanding  obligations and the obtaining
of  funds  for  general  operating  expenses  and  for  loans  to  other  public
institutions and facilities.


WHAT IS THE ADVISER'S INVESTMENT STRATEGY?

The Adviser will manage the assets of the Trust in  accordance  with the Trust's
investment  objective and policies to seek to achieve its objective by investing
in investment grade New York Municipal Obligations. The Adviser actively manages
the assets in relation to market conditions and interest rate changes. Depending
on yield and  portfolio  allocation  considerations,  the  Adviser may choose to
invest a portion of the Trust's assets in securities  which pay interest that is
subject  to AMT  (alternative  minimum  tax).  The Trust  intends  to  emphasize
investments in New York  Municipal  Obligations  with  long-term  maturities and
expects to  maintain  an average  portfolio  maturity  of 15-20  years,  but the
average  maturity may be shortened or lengthened  from time to time depending on
market conditions.

Under current market conditions the use of leverage  increases the income earned
by the Trust.  The Trust  employs  leverage  primarily  through the  issuance of
preferred  stock.   Preferred  stockholders  will  receive  dividends  based  on
short-term rates in exchange for allowing the Trust to borrow additional assets.
These assets will be invested in longer-term assets which typically offer higher
interest  rates and the  difference  between the cost of the  dividends  paid to
preferred  stockholders  and the interest earned on the  longer-term  securities
will provide higher income levels for common  stockholders in most interest rate
environments.  The Trust issued  preferred  stock to leverage  the  portfolio at
approximately  35% of total assets.  See "Leverage  Considerations in the Trust"
below.


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

The Trust's  shares are traded on the American  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 advisor. 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 and Trust Company. Investors who wish to hold shares in a brokerage account
should check with their financial  advisor to determine  whether their brokerage
firm offers dividend reinvestment services.

                                       13

<PAGE>

LEVERAGE CONSIDERATIONS IN THE TRUST

Leverage  increases  the duration (or price  sensitivity  of the net assets with
respect to changes  in  interest  rates) of the  Trust,  which can  improve  the
performance  of the Trust in a  declining  rate  environment,  but can cause net
assets to decline  faster in a rapidly  rising  interest rate  environment.  The
Trust may reduce,  or unwind,  the amount of leverage  employed should BlackRock
consider that  reduction to be in the best  interests of the Trust.  BlackRock's
portfolio managers  continuously monitor and regularly review the Trust's use of
leverage  and  maintain  the  ability to unwind the  leverage  if that course is
chosen.


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  objective of the Trust is to provide high
current income exempt from regular Federal, State and City income tax consistent
with the preservation of capital,  there can be no assurance that this objective
will be achieved.

DIVIDEND  CONSIDERATIONS.  The income and dividends paid by the Trust are likely
to vary over time as fixed income market conditions change. Future dividends may
be higher or lower than the dividend the Trust is currently paying.

LEVERAGE.  The Trust utilizes leverage through  preferred stock,  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 American Stock  Exchange  (AMEX symbol:  RNY) 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.

INVESTMENT GRADE MUNICIPAL  OBLIGATIONS.  The value of municipal debt securities
generally  varies  inversely with changes in prevailing  market  interest rates.
Depending  on the amount of call  protection  that the  securities  in the Trust
have, the Trust may be subject to certain  reinvestment risks in environments of
declining interest rates.

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.

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.

                                       14

<PAGE>



- --------------------------------------------------------------------------------
         THE BLACKROCK NEW YORK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                                    GLOSSARY
- --------------------------------------------------------------------------------

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.

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

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

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  and The New
                            York Times or The Wall Street Journal each 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.

PREREFUNDED BONDS:          These   securities   are   collateralized   by  U.S.
                            Government  securities  which are held in escrow and
                            are used to pay  principal  and  interest on the tax
                            exempt issue and retire the bond in full at the date
                            indicated, typically at a premium to par.

                                       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
Keith T. Anderson, VICE PRESIDENT
Michael C. Huebsch, VICE PRESIDENT
Robert S. Kapito, VICE PRESIDENT
Kevin Klingert, 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
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  

AUCTION AGENT
Bankers Trust Company 
4 Albany Street 
New York, NY 10006 

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, 1998 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 NEW YORK INVESTMENT
                          QUALITY MUNICIPAL TRUST INC.
                 c/o Prudential Investments Fund Management, LLC
                              Gateway Center Three
                               100 Mulberry Street
                              Newark, NJ 07102-4077
                                 (800) 227-7BFM

[LOGO] Printed on recycled paper                                      09247E-103




THE BLACKROCK
NEW YORK
INVESTMENT QUALITY
MUNICIPAL TRUST INC.
=======================
SEMI-ANNUAL REPORT
APRIL 30, 1998





[GRAPHIC]



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