BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC
N-30D, 1999-12-29
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- --------------------------------------------------------------------------------
             THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                         ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------
                                                               November 30, 1999

Dear Shareholder:

     After easing monetary policy three times during the fourth quarter of 1998,
the Federal  Reserve  reversed its trend by raising the Fed funds target rate 75
basis  points (to 5.50%) over the course of 1999 in response to robust GDP,  low
unemployment and rising equity prices.  U.S. Treasury yields rose  significantly
during the past twelve  months,  with the yield of the 30-year  Treasury  rising
above 6.00% for the first time since May 1998.

     Despite the rise in Treasury  yields,  continued strong economic growth may
spur the  Federal  Reserve to  proactively  fight  perceived  inflation  through
continued  monetary  policy  tightening  in 2000.  Until the  inflation  picture
becomes  clearer,  we  expect  interest  rates to  remain  largely  range-bound.
Accordingly,  we will  continue  to seek  the  most  attractive  relative  value
opportunities  and utilize our proprietary  risk management  systems to help the
Trust to achieve its investment objectives.

     This  report  contains  a summary  of market  conditions  during the annual
period and a review of portfolio  strategy by your Trust's  managers in addition
to the Trust's audited financial statements and a detailed portfolio list of the
portfolio's  holdings.  Continued  thanks for your  confidence in BlackRock.  We
appreciate the opportunity to help you achieve your long-term investment goals.

Sincerely,


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


                                       1


<PAGE>

                                                              November 30, 1999

Dear Shareholder:

     We are pleased to present the annual  report for The  BlackRock  Investment
Quality Municipal Trust Inc. ("the Trust") for the fiscal year ended October 31,
1999. We would like to take this  opportunity  to review the Trust's stock price
and net asset  value  (NAV)  performance,  summarize  developments  in the fixed
income markets 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  "BKN".  The
Trust's  investment  objective is to provide high current  income that is exempt
from regular Federal income tax consistent with the preservation of capital. The
Trust seeks to achieve this  objective by investing in  investment  grade (rated
"AAA" to "BBB" by a major rating  agency or of  equivalent  quality)  tax-exempt
general   obligation  and  revenue  bonds  issued  by  city,  county  and  state
municipalities throughout the United States.

     The table below  summarizes  the changes in the Trust's stock price and NAV
over the past twelve months:

<TABLE>
<CAPTION>
                           10/31/99      10/31/98       CHANGE          HIGH          LOW
                           ------------------------------------------------------------------
<S>                       <C>          <C>             <C>            <C>           <C>
- ---------------------------------------------------------------------------------------------
 STOCK PRICE              $ 13.125     $ 15.4375       (14.98)%       $ 16.0625     $ 12.9375
- ---------------------------------------------------------------------------------------------
 NET ASSET VALUE (NAV)    $ 13.95      $ 15.78         (11.60)%       $ 15.79       $ 13.87
- ---------------------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

     The U.S.  economy  sustained its growth during the past twelve  months,  as
U.S.  exports and  manufacturing  continued to rebound.  Additionally,  consumer
strength remains an important contributor to economic growth as low unemployment
and rising incomes fuel domestic  demand.  After  lowering  interest rates three
times in the second half of 1998, and despite inflation  concerns as measured by
CPI  and  PPI  remaining  relatively  benign,  the  Federal  Reserve  adopted  a
tightening  bias and raised its target for the Federal  funds rate from 4.75% to
5.50%  between June and November  1999. In a statement  accompanying  the latest
tightening  on November 16, it was  indicated  that the Fed believes that growth
"continues in excess of the economy's growth potential";  nevertheless,  the Fed
reversed their tightening stance by adopting a neutral bias.

     After a brief rally in late 1998,  Treasury yields rose dramatically during
1999. Over the period,  the yield of the 30-year Treasury increased by 100 basis
points,  closing at 6.16% on October 31. Bond  prices,  which move  inversely to
their yields,  were punished by the constant  threat of inflation in response to
the strong  economic  data and the  market's  uncertainty  over the Fed's policy
throughout the year.  Recently,  a weaker dollar,  higher  commodity  prices and
strong gains in the U.S.  and European  equity  markets have  depressed  overall
demand for fixed income securities.

     Municipals  underperformed the taxable market during the period,  posting a
- -1.78%  total return as measured by the LEHMAN  MUNICIPAL  BOND INDEX versus the
LEHMAN  AGGREGATE'S  0.53%.  For  much  of  the  period,  intermediate  maturity
securities outperformed longer maturity municipal securities.  As interest rates
rose to their  highest  level in four years  during  the third  quarter of 1999,
retail demand for municipal securities has increased dramatically.  This rise in
municipal  interest  rates is directly  related to the  increase of  alternative
taxable   investment   spreads  over   Treasuries.   Currently   municipals  are
substantially  cheaper then their  long-term  average  valuations as compared to
Treasuries.  Unlike the taxable market, which has witnessed a surge of supply by
issuers trying to avoid potential year end market  dislocations  due to Y2K, the
volume  of new  municipal  issuance  is down  significantly  from  1998's  pace,
creating a positive  technical  environment.  We believe that the current market
environment  offers  some of the most  attractive  investment  opportunities  in
municipals in the last few years.

THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

     In seeking to achieve its investment  objectives,  the Trust's portfolio is
actively managed to diversify exposure to various

                                       2


<PAGE>

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 via auction rate preferred stock
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.  While the amount of preferred  shares  outstanding has
remained  constant,  the percentage of leverage utilized by the Trust fluctuates
modestly as the net asset value moves.  Over the period,  the Trust's  borrowing
costs continue to be profitable.

     During the period,  the Trust sought to take  advantage of tight  municipal
credit spreads to improve its overall credit  profile.  Specifically,  the Trust
emphasized  higher rated securities over lower rated  securities.  Additionally,
the Trust maintained a defensive coupon structure,  which was achieved by adding
premium coupons,  which  positively  contributed to the Trust's total returns as
interest rates rose during the period.

     The following charts compare the Trust's current and October 31, 1998 asset
composition and credit quality allocations:

- --------------------------------------------------------------------------------
                           SECTOR BREAKDOWN
- --------------------------------------------------------------------------------
  SECTOR                            OCTOBER 31, 1999   OCTOBER 31, 1998
- --------------------------------------------------------------------------------
  Transportation                           23%                18%
- --------------------------------------------------------------------------------
  City, County & State                     15%                17%
- --------------------------------------------------------------------------------
  Hospital                                 13%                12%
- --------------------------------------------------------------------------------
  Industrial & Pollution Control           10%                13%
- --------------------------------------------------------------------------------
  Power                                     8%                 8%
- --------------------------------------------------------------------------------
  University/School                         7%                 7%
- --------------------------------------------------------------------------------
  Lease Revenue                             6%                 6%
- --------------------------------------------------------------------------------
  Housing                                   5%                 5%
- --------------------------------------------------------------------------------
  Water & Sewer                             5%                 5%
- --------------------------------------------------------------------------------
  Tax Revenue                               4%                 6%
- --------------------------------------------------------------------------------
  Resource Recovery                         2%                 2%
- --------------------------------------------------------------------------------
  Special District                          2%                 -
- --------------------------------------------------------------------------------
  Miscellaneous Revenue                     -                  1%
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
 CREDIT RATING*   OCTOBER 31, 1999   OCTOBER 31, 1998
- --------------------------------------------------------------------------------
      AAA/Aaa           65%                58%
- --------------------------------------------------------------------------------
       AA/Aa            10%                12%
- --------------------------------------------------------------------------------
        A/A             14%                15%
- --------------------------------------------------------------------------------
      BBB/Baa           11%                15%
- --------------------------------------------------------------------------------
- ----------
* Using the higher of Standard & Poor's, Moody's or Fitch's rating.

                                       3


<PAGE>

     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
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 S. Kapito                   /s/ Kevin Klingert
- --------------------                   ------------------
Robert S. Kapito                       Kevin Klingert
Vice Chairman and Portfolio Manager    Managing Director and Portfolio Manager
BlackRock Financial Management, Inc.   BlackRock Financial Management, Inc.


- --------------------------------------------------------------------------------
                 THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
- --------------------------------------------------------------------------------
  Symbol on New York Stock Exchange:                             BKN
- --------------------------------------------------------------------------------
  Initial Offering Date:                                   February 19, 1993
- --------------------------------------------------------------------------------
  Closing Stock Price as of 10/31/99:                         $13.125
- --------------------------------------------------------------------------------
  Net Asset Value as of 10/31/99:                             $13.95
- --------------------------------------------------------------------------------
  Yield on Closing Stock Price as of 10/31/99 ($13.125)1:       6.57   %
- --------------------------------------------------------------------------------
  Current Monthly Distribution per Share2:                    $ 0.0719
- --------------------------------------------------------------------------------
  Current Annualized Distribution per Share2:                 $ 0.8628
- --------------------------------------------------------------------------------

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>

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1999
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
               PRINCIPAL                                                   OPTION CALL         VALUE
   RATING*      AMOUNT                                                     PROVISIONS+        (NOTE 1)
 (UNAUDITED)    (000)              DESCRIPTION                             (UNAUDITED)
============= =========== =============================================== ================  ===========
<S>           <C>           <C>                                            <C>              <C>
                            LONG-TERM INVESTMENTS-153.5%
                            CALIFORNIA-16.5%
Aa2          $     1,220    California Hsg. Fin. Agcy. Rev., Home
                              Mtg., Ser. C, 5.65%, 8/01/14 ..............  2/04 at 102      $ 1,215,620
AA-                5,770    California St. G.O., 5.00%, 10/01/14 ........  10/07 at 101       5,415,607
AAA                8,000    Foothill Eastern Corridor Agcy. Toll Road Rev.,
                              5.00%, 1/15/16, MBIA .....................   1/10 at 101        7,322,880
AAA               15,460    Los Angeles Cnty. Asset Leasing Corp. Rev.,
                              5.95%, 12/01/07, AMBAC ....................  No Opt. Call      16,651,038
                            University of California Rev., Research Fac.,
                              Ser. B,
Aaa                2,000++    6.10%, 9/01/03 ............................      N/A            2,160,400
Aaa                3,305++    6.20%, 9/01/03 ............................      N/A            3,581,596
Aaa                2,000++    6.25%, 9/01/03 ............................      N/A            2,170,880
                                                                                            -----------
                                                                                             38,518,021
                            COLORADO-14.3%                                                  -----------
Aaa                3,100    Arapahoe Cnty. Cap. Impvt. Hwy. Rev.,
                              Trust Fund, Ser. E, Zero Coupon, 8/31/04 ... No Opt. Call       2,440,103
                            Denver City & Cnty. Arpt. Rev.,
AAA                1,000      Ser. A, 5.60%, 11/15/20, MBIA .............. 11/05 at 102         957,040
BBB+               3,000      Ser. C, 6.50%, 11/15/06 .................... 11/02 at 102       3,134,280
BBB+               1,120      Ser. C, 6.65%, 11/15/05 .................... 11/02 at 102       1,176,437
Aaa                3,705+     Ser. D, 7.00%, 11/15/01 ....................     N/A            3,888,879
BBB+              14,085      Ser. D, 7.00%, 11/15/25 .................... 11/01 at 100      14,447,689
                            E-470 Pub. Hwy. Auth. Rev., Ser. B,
AAA                3,000      Zero Coupon, 9/01/11, MBIA ................. No Opt. Call       1,584,480
AAA               10,000      Zero Coupon, 9/01/18, MBIA ................. No Opt. Call       3,195,900
Aaa                2,250++    6.90%, 8/31/05 .............................     N/A            2,542,432
                                                                                            -----------
                                                                                             33,367,240
                            CONNECTICUT-1.1%                                                -----------
BBB-                        Mashantuchet Western Pequot Tribe, Spl. Rev.,
                   3,000      5.50%, 9/01/28 ............................. 9/09 at 101        2,639,130
                                                                                            -----------
                            DISTRICT OF COLUMBIA-2.0%
                            District of Columbia G.O., Ser. E, CAPMAC,
AAA                   70++    6.00%, 6/01/03 .............................     N/A               74,410
AAA                1,830      6.00%, 6/01/09 ............................. 6/03 at 102        1,890,573
AAA                3,000    Washington D.C. Convention Ctr. Auth., Ded.                       2,741,910
                              Tax Rev., 5.25%, 10/01/17, AMBAC ........... 10/08 at 101     -----------
                                                                                              4,706,893
                                                                                            -----------
                            FLORIDA-2.5%
AAA                1,735    Florida Hsg. Fin. Agcy. Rev., Sngl. Fam. Mtg.,
                              Ser. 1994-A, 6.55%, 7/01/14, GNMA .......... 1/05 at 102        1,785,367
BBB                4,000    Santa Rosa Bay Bridge Auth. Rev.,
                              6.25%, 7/01/28 ............................. 7/06 at 102        3,984,000
                                                                                            -----------
                                                                                              5,769,367
                            GEORGIA-1.1%                                                    -----------
A                  3,000    Burke Cnty. Dev. Auth. P.C.R., Pwr. Co.,
                              Plant Vogtle,
                              3rd Ser., 5.45%, 5/01/34 ................... 5/04 at 102        2,631,540
                                                                                            -----------
                            ILLINOIS-9.9%
AAA                2,500    Chicago Waste Wtr. Transmission Rev.,
                              5.125%, 1/01/25, FGIC ...................... 1/06 at 102        2,167,875
AAA                5,050    Chicago Wtr. Rev., 5.25%, 11/01/23, FGIC ..... 11/07 at 102       4,523,941
AAA                3,000++  Cook Cnty. Cap. Impt.,
                              5.875%, 11/15/06, FGIC .....................     N/A            3,199,080
AAA                4,165    Cook Cnty. G.O., Ser. A,
                              5.20%, 11/15/08, MBIA ...................... 11/07 at 101       4,162,668
                            Illinois Edl. Fac. Auth. Rev., Loyola Univ., FGIC,
AAA                4,000++    5.45%, 7/01/05 .............................     N/A            4,035,400
AAA                5,000++    5.70%, 7/01/05 .............................     N/A            5,094,950
                                                                                            -----------
                                                                                             23,183,914
                            INDIANA-3.5%                                                    -----------
BBB                7,595    Indianapolis Arpt. Auth. Rev., Spl. Fac. Fed.
                              Express Corp. Proj., 7.10%, 1/15/17 .........7/04 at 102        8,131,055
                                                                                            -----------
</TABLE>

                       See Notes to Financial Statements.
                                        5


<PAGE>

<TABLE>
<CAPTION>
               PRINCIPAL                                                   OPTION CALL         VALUE
   RATING*      AMOUNT                                                     PROVISIONS+        (NOTE 1)
 (UNAUDITED)    (000)              DESCRIPTION                             (UNAUDITED)
============= =========== =============================================== ================  ===========
<S>           <C>           <C>                                            <C>              <C>
                            KENTUCKY-7.7%
AAA           $    2,850    Boone Cnty. P.C.R., 5.50%, 1/01/24, MBIA ..... 1/04 at 102      $ 2,703,909
AAA               15,000    Kentucky St. Tpke. Auth., Econ. Dev.
                              Road Rev., 5.75%, 7/01/13, AMBAC ........... 7/03 at 102       15,343,200
                                                                                            -----------
                                                                                             18,047,109
                            LOUISIANA-7.9%                                                  -----------
AAA               14,400++  Louisiana Pub. Fac. Auth. Hosp. Rev.,
                              Our Lady of the Lake Regl. Med. Ctr.,
                              5.90%, 12/01/03, FSA .......................     N/A           15,332,976
AAA                2,860++  Louisiana Stadium & Expo Dist., Htl.
                              Ocpcy. Tax, 6.00%, 7/01/06, FGIC ...........     N/A            3,074,786
                                                                                            -----------
                                                                                             18,407,762
                                                                                            -----------
                            MARYLAND-5.6%
Aa2                9,640    Maryland St. Dept. Hsg. & Comn. Dev. Admin.,
                              Sngl. Fam. Prog., Ser. 2, 6.55%, 4/01/26.... 4/05 at 102        9,836,271
AAA                3,175    Northeast Waste Disp. Auth. Rev., Sld. Wst.,
                              Montgomery Cnty. Res. Rec. Proj.,
                              Ser. A, 6.30%, 7/01/16, MBIA ............... 7/03 at 102        3,235,674
                                                                                            -----------
                                                                                             13,071,945
                                                                                            -----------
                            MASSACHUSETTS-2.2%
AAA                6,000    Massachusetts St. Hlth. & Edl. Fac. Auth. Rev.,
                              Hallmark Hlth. Sys.,
                              Ser. A, 5.00%, 7/01/21, FSA ................ 7/08 at 101        5,159,280
                                                                                            -----------
                            MICHIGAN-3.9%
AAA                4,000    Greater Detroit Res. Rec. Auth. Rev., Ser. A,
                              6.25%, 12/13/08, AMBAC .....................  No Opt.Call       4,281,480
AAA                5,000    River Rouge Sch. Dist., 5.625%, 5/01/22, FSA . 5/03 at 101.5      4,752,050
                                                                                            -----------
                                                                                              9,033,530
                                                                                            -----------
                            MISSOURI-1.7%
                            Lake of the Ozarks Cmnty. Brdg. Corp.,
                              Brdg. Sys. Rev.,
NR                 2,000      5.25%, 12/01/14 ............................ 12/08 at 102       1,785,220
NR                 2,500      5.25%, 12/01/26 ............................ 12/08 at 102       2,100,675
                                                                                            -----------
                                                                                              3,885,895
                                                                                            -----------
                            NEVADA-1.7%
AAA                3,750    Washoe Cnty. Arpt. Auth., Arpt. Sys. Impvt.
                              Rev., Ser. B, 5.80%, 7/0  1/09, MBIA ....... 7/03 at 102        3,854,138
                                                                                            -----------
                            NEW YORK-27.1%
AAA                5,400    Metropolitan Trans. Auth. Commuter Fac. Rev.,
                              Ser. A, 5.75%, 7/01/2, MBIA ................ 7/07 at 101.5      5,262,192
                            New York City G.O.,
A                  4,140      Ser. A, 6.00%, 8/01/05 .....................  No Opt. Call      4,343,191
AAA                3,000      Ser. D, 5.60%, 11/01/05, AMBAC .............  No Opt. Call      3,107,340
A                  7,000      Ser. E, 6.50%, 2/15/06 .....................  No Opt. Call      7,519,540
A                  6,440++    Ser. H, 7.20%, 2/01/02 .....................     N/A            6,905,483
A                    560      Ser. H, 7.20%, 2/01/13 ..................... 2/02 at 101.5        591,349
                            New York City Ind. Dev. Agcy. Spec. Fac. Rev.,
                              Term. One Group Assoc. Proj.,
A                  4,000      6.00%, 1/01/08 ............................. 1/04 at 102        4,114,800
A                  1,000      6.00%, 1/01/15 ............................. 1/04 at 102          994,720
AAA                9,375    New York City Mun. Wtr. Fin. Auth.,
                              Wtr. & Swr. Rev., Ser. A,
                              5.125%, 6/15/22, AMBAC ..................... 6/07 at 101        8,291,063
AA+                4,000    New York City Transitional Fin. Auth. Rev.,
                              Ser. C, 4.75%, 5/01/23 ..................... 5/08 at 102        3,282,360
AAA                3,000++  New York St. Dorm. Auth. Rev., St. Univ. Edl.
                              Fac., Ser. B, 6.10%, 5/15/04 ...............     N/A            3,228,450
A-                 1,955    New York St. Hsg. Fin. Agcy., Hlth. Fac. of
                              New York City, Ser. A, 6.375%, 11/01/04 ....  No Opt. Call      2,035,018
AAA                5,000++  New York St. Med. Care Fac. Rev., Hosp.,
                              Ser. A, 6.60%, 2/15/05, AMBAC ..............     N/A            5,512,750
AAA                5,530    New York St. Twy. Auth., Svc. Contract Rev.,
                              Ser. B, 5.375%, 4/01/14, MBIA .............. 4/08 at 101        5,335,437
AAA                2,620    New York St. Urban Dev. Corp. Rev.,
                              Correctional Fac., 5.625%, 1/01/07, AMBAC .. 1/03 at 102        2,692,600
                                                                                            -----------
                                                                                             63,216,293
                                                                                            -----------
                            NORTH CAROLINA-2.4%
AAA                5,000    North Carolina Eastn. Mun. Pwr. Agcy. Rev.,
                              Ser. B, 7.00%, 1/01/08, CAPMAC .............  No Opt. Call      5,568,050
                                                                                            -----------
                            OHIO-0.7%
NR                   500    Cleveland Cuyahoga Cnty. Port Auth. Rev.,
                            Port Dev. Proj., 6.00%, 3/01/07 ............    No Opt. Call        492,305
AAA                1,200    Ohio St. Higher Edl. Fac. Com., Univ. Dayton Proj.,
                              5.35%, 12/01/17, AMBAC ....................   12/07 at 101        1,171,956
                                                                                            -----------
                                                                                              1,664,261
                                                                                            -----------
                            OREGON-2.3%
BBB-               5,000    Klamath Falls Oregon Elec. Rev.,
                              Sr. Lien-Klamath Cogen, 5.50%, 1/01/07 .....  No Opt. Call      5,374,040
                                                                                            -----------
</TABLE>

                       See Notes to Financial Statements.
                                       6


<PAGE>

<TABLE>
<CAPTION>
               PRINCIPAL                                                   OPTION CALL
   RATING*      AMOUNT                                                     PROVISIONS+             VALUE
 (UNAUDITED)    (000)              DESCRIPTION                             (UNAUDITED)            (NOTE 1)
============= =========== =============================================== ================  ==================
<S>              <C>           <C>                                            <C>              <C>
                            PENNSYLVANIA-14.1%
AAA              $ 6,000    Delaware Valley Regl. Fin. Auth., Ser. A,
                              5.50%, 8/01/28, AMBAC ...................... No Opt. Call        $  5,630,100
AAA               10,100    Lehigh Cnty. Gen. Purpose Auth. Rev.,
                              St. Lukes Hosp. Bethlehem Proj.,
                              5.50%, 11/15/13, AMBAC ..................... 11/03 at 102           9,932,037
AAA                7,000    Montgomery Cnty. Ed. & Hlth. Care Auth.,
                              Holy Redeemer, 5.25%, 10/01/23, AMBAC ...... 10/07 at 101           6,223,140
AAA                4,000    Pennsylvania Intergovernmental Coop. Auth.
                              Spl. Tax Rev., Philadelphia Fdg. Prog.,
                              5.50%, 6/15/20, FGIC ....................... 6/06 at 100            3,755,400
AAA                1,500    Pennsylvania St. G.O., First Ser.,
                              5.375%, 5/15/09, FGIC ...................... 5/06 at 101.50         1,522,200
                            Pennsylvania St. Higher Edl. Fac. Auth.,
                              Hlth. Svcs. Rev., Ser. A,
A                  3,300      5.75%, 1/01/17 ............................. 1/06 at 101            3,087,117
A                  2,750      5.875%, 1/01/15 ............................ 1/06 at 101            2,620,310
                                                                                                -----------
                                                                                                 32,770,304
                                                                                                -----------
                            RHODE ISLAND-2.3%
AA+                3,315    Rhode Island Hsg. & Mtg. Fin., Homeownership
                              Oppty., Ser. 15-B, 6.75%, 10/01/17 ......... 4/04 at 102            3,422,936
AAA                2,000    Rhode Island St. Hlth. & Edl. Bldg.
                              Corp. Rev., Hosp. Fin., 5.50%, 5/15/16, MBIA 5/07 at 102            1,934,200
                                                                                               ------------
                                                                                                  5,357,136
                                                                                               ------------
                            TENNESSEE-3.4%
A                  7,800    Maury Cnty. Ind. Dev. Brd., P.C.R., Saturn
                              Corp. Proj., 6.50%, 9/01/24 ................ 9/04 at 102            7,987,746
                                                                                               ------------
                            TEXAS-4.7%
                            Dallas Cnty. Util. & Cap. Apprec., Ser. A, AMBAC,
AAA                6,085      Zero Coupon, 2/15/19 ....................... 2/05 at 44.538         1,822,032
AAA                3,800      Zero Coupon, 2/15/20 ....................... 2/05 at 41.799         1,049,978
Baa1               5,500    Dallas Fort Worth Intl. Arpt. Fac. Impt. Rev.,
                              American Airlines Inc., 6.375%, 5/01/35 .... 11/09 at 101           5,266,360
A3                 2,640    Sabine River Auth., P.C.R., Coll-Texas
                              Utilities Elec. Proj.,
                              Ser. B, 8.25%, 10/01/20 .................... 10/00 at 102           2,756,107
                                                                                               ------------
                                                                                                 10,894,477
                                                                                               ------------
                            UTAH-2.5%
A+                 1,800    Intermountain Pwr. Agcy. Rev., Fst. Crossover,
                              Ser. 86 B, 5.00%, 7/01/16 .................. 12/99 at 100           1,607,886
AAA                4,450    Intermountain Pwr. Agcy. Rev., Pwr. Supply,
                              Ser. F, 5.00%, 7/01/13, AMBAC .............. 12/99 at 100           4,139,212
                                                                                               ------------
                                                                                                  5,747,098
                                                                                               ------------
                            WASHINGTON-12.4%
AA                 6,900    Seattle G.O., 5.40%, 1/01/08 ................. 1/03 at 102            6,952,647
AA                 2,650    Seattle Wtr. Sys. Rev., 5.50%, 6/01/18 ....... 6/03 at 102            2,533,638
AA+                4,000    Washington St. G.O., Ser. A, 5.375%, 7/01/21 . 7/06 at 100            3,675,600
                            Washington St. Pub. Pwr. Supply Sys. Rev.,
AAA               13,395      Nuclear Proj. No. 1, 5.75%, 7/01/11, MBIA .. 7/06 at 102           13,623,921
AAA                2,000      Nuclear Proj. No. 2, 5.55%, 7/01/10, FGIC .. 7/03 at 102            1,995,740
                                                                                               ------------
                                                                                                 28,781,546
                                                                                               ------------


                            TOTAL INVESTMENTS-153.5% (COST $357,728,784).........               357,767,770
                            Other assets in excess of liabilities-2.3% ..........                 5,317,477
                            Liquidation value of preferred stock-(55.8)% ........              (130,000,000)
                                                                                                -----------
                            NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS-100% ...             $ 233,085,247
                                                                                               ------------
</TABLE>

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

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------
                                          THE FOLLOWING ABBREVIATIONS ARE USED IN PORTFOLIO DESCRIPTIONS:

   <S>                                                            <C>
    AMBAC -  American Municipal Bond Assurance Corporation         GNMA -  Government National Mortgage Association
   CAPMAC -  Capital Markets Assurance Corporation                 G.O. -  General Obligation Bond

     FGIC -  Financial Guaranty Insurance Company                  MBIA -  Municipal Bond Insurance Association
      FSA -  Financial Security Assurance                        P.C.R. -  Pollution Control Revenue
- --------------------------------------------------------------------------------------------------------------------
</TABLE>

                       See Notes to Financial Statements.
                                        7


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
OCTOBER 31, 1999
- --------------------------------------------------------------------------------
ASSETS
Investments, at value (cost $357,728,784) (Note 1) .      $357,767,770
Interest receivable ..................................       6,660,730
Other assets .........................................           8,211
                                                          ------------
                                                           364,436,711
                                                          ------------
LIABILITIES
Due to custodian .....................................         714,554
Dividends payable-preferred stock ....................         166,912
Investment advisory fee payable (Note 2) .............         114,194
Administration fee payable (Note 2) ..................          48,941
Other accrued expenses ...............................         306,863
                                                          ------------
                                                             1,351,464
                                                          ------------
NET INVESTMENT ASSETS ................................    $363,085,247
                                                          ============
Net investment assets were comprised of:
 Common stock:
  Par value (Note 4) .................................    $    167,071
  Paid-in capital in excess of par ...................     232,077,869
 Preferred stock (Note 4) ............................     130,000,000
                                                          ------------
                                                           362,244,940
 Undistributed net investment income .................       1,194,824
 Accumulated net realized loss .......................        (393,503)
 Net unrealized appreciation .........................          38,986
                                                          ------------
Net investment assets, October 31, 1999 ..............    $363,085,247
                                                          ============
Net assets applicable to common shareholders .........    $233,085,247
                                                          ============
Net asset value per common share:
  ($233,085,247 \d 16,707,093 shares of
  common stock issued and outstanding) ...............    $      13.95
                                                          ============

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF OPERATIONS
YEAR ENDED OCTOBER 31, 1999
- --------------------------------------------------------------------------------
NET INVESTMENT INCOME
Income
  Interest and discount earned ...........   $20,852,020
                                             -----------
Expenses
  Investment advisory ....................     1,364,571
  Administration .........................       584,816
  Auction agent ..........................       345,000
  Custodian ..............................        68,500
  Reports to shareholders ................        68,500
  Directors ..............................        58,500
  Transfer agent .........................        30,000
  Audit ..................................        25,000
  Legal ..................................         6,000
  Miscellaneous ..........................       104,874
                                             -----------
  Total expenses .........................     2,655,761
                                             -----------
Net investment income ....................    18,196,259
                                             -----------
REALIZED AND UNREALIZED LOSS
ON INVESTMENTS (NOTE 3)
Net realized loss on investments .........      (312,281)
Net change in unrealized appreciation
  on investments .........................   (26,729,799)
                                             -----------
Net loss on investments ..................   (27,042,080)
                                             -----------
NET DECREASE IN NET INVESTMENT ASSETS
RESULTING FROM OPERATIONS ................   $(8,845,821)
                                             ===========

                       See Notes to Financial Statements.
                                       8


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
STATEMENTS OF CHANGES IN NET INVESTMENT ASSETS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                           YEAR ENDED OCTOBER 31,
                                                                                     -----------------------------------
                                                                                           1999               1998
                                                                                     ----------------   ----------------
<S>                                                                                  <C>                <C>
INCREASE (DECREASE) IN NET INVESTMENT ASSETS
OPERATIONS:
 Net investment income ...........................................................    $  18,196,259      $  18,032,133
 Net realized gain (loss) on investments .........................................         (312,281)         3,208,243
 Net change in unrealized appreciation on investments ............................      (26,729,799)         8,422,329
                                                                                      -------------      -------------
  Net increase (decrease) in net investment assets resulting from operations .....       (8,845,821)        29,662,705
                                                                                      -------------      -------------
DIVIDENDS AND DISTRIBUTIONS:
 To common shareholders from net investment income ...............................      (14,414,299)       (13,554,216)
 To common shareholders from net realized gain on investments ....................       (2,504,280)        (3,343,299)
 To preferred shareholders from net investment income ............................       (4,036,417)        (3,967,577)
 To preferred shareholders from net realized gain on investments .................         (703,888)        (1,133,378)
                                                                                      -------------      -------------
 Total dividends and distributions ...............................................      (21,658,884)       (21,998,470)
                                                                                      -------------      -------------
   Total increase (decrease) .....................................................      (30,504,705)         7,664,235
NET INVESTMENT ASSETS
Beginning of year ................................................................      393,589,952        385,925,717
                                                                                      -------------      -------------
End of year ......................................................................    $ 363,085,247      $ 393,589,952
                                                                                      =============      =============
</TABLE>

                       See Notes to Financial Statements.
                                        9


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                           YEAR ENDED OCTOBER 31,
                                                                    ---------------------------------------------------------------
                                                                         1999         1998         1997         1996        1995
                                                                    ------------- ------------ ------------ -----------------------
<S>                                                                 <C>           <C>          <C>          <C>          <C>
PER COMMON SHARE OPERATING PERFORMANCE:
Net asset value, beginning of year ................................    $ 15.78      $ 15.32      $ 14.52     $ 14.18     $ 12.05
                                                                       -------      -------      -------     -------     -------
 Net investment income ............................................       1.09         1.08         1.08        1.09       1.10
 Net realized and unrealized gain (loss) on investments ...........      (1.63)         .70          .80         .34       2.16
                                                                       -------      -------      -------     -------     -------
Net increase (decrease) from investment operations ................       (.54)        1.78         1.88        1.43       3.26
                                                                       -------      -------      -------     -------     -------
Dividends and distributions:
 Dividends from net investment income to:
  Common shareholders .............................................       (.86)        (.81)        (.78)       (.79)       (.82)
  Preferred shareholders ..........................................       (.24)        (.24)        (.27)       (.28)       (.31)
 Distributions from net realized gain on investments to:
  Common shareholders .............................................       (.15)        (.20)        (.02)       (.01)          -
  Preferred shareholders ..........................................       (.04)        (.07)        (.01)       (.01)          -
                                                                       -------     --------     --------    --------     -------
    Total dividends and distributions .............................      (1.29)       (1.32)       (1.08)      (1.09)      (1.13)
                                                                       -------     --------     --------    --------     -------
Net asset value, end of year* .....................................    $ 13.95      $ 15.78      $ 15.32     $ 14.52     $ 14.18
                                                                       =======      ========     ========   ========     =======
Per share market value, end of year* ..............................    $ 13.13      $ 15.44      $ 13.38     $ 12.44     $ 12.00
                                                                       =======      ========     ========   ========     =======
TOTAL INVESTMENT RETURN+  .........................................      (9.03)%      23.81%       14.39%      10.41%      24.01%
                                                                       =======      ========    ========    ========     =======
RATIOS TO AVERAGE NET ASSETS OF COMMON
 SHAREHOLDERS:
Expenses++   ......................................................       1.05%        1.04%        1.07%       1.12%       1.16%
Net investment income before preferred stock dividends++   ........       7.21%        6.95%        7.42%       7.57%       8.36%
Preferred stock dividends .........................................       1.60%        1.53%        1.88%       1.97%       2.34%
Net investment income available to common shareholders ............       5.61%        5.42%        5.54%       5.60%       6.02%
SUPPLEMENTAL DATA:
Average net assets of common shareholders (in thousands) ..........   $252,536     $259,280     $243,947    $238,540    $219,740
Portfolio turnover ................................................         26%          46%         160%        164%        182%
Net assets of common shareholders, end of year (in thousands) .....   $233,085     $263,590     $255,926    $242,547    $236,990
Preferred stock outstanding (in thousands) ........................   $130,000     $130,000     $130,000    $130,000    $130,000
Asset coverage per share of preferred stock, end of year ..........    $69,824     $ 75,690     $ 74,241    $ 71,644    $ 70,575
</TABLE>

- ----------

*   Net asset value and market  value are  published in BARRON'S on Saturday and
    THE  WALL  STREET  JOURNAL  each  Monday.

+   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 year 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.

++  Ratios are calculated on the basis of income and expenses applicable to both
    the common and preferred  stock relative to the average net assets of common
    shareholders.

The information above represents the audited  operating  performance for a share
of common stock  outstanding,  total  investment  return,  ratios to average net
assets and other supplemental data for the years 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.
                                       10


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK INVESTMENT
QUALITY MUNICIPAL TRUST INC.
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
NOTE 1. ORGANIZATION & ACCOUNTING POLICIES

     The BlackRock  Investment  Quality  Municipal  Trust Inc. (the "Trust") was
organized  in  Maryland  on  November  19,  1992  as a  diversified,  closed-end
management  investment company.  The Trust's investment objective is to manage a
portfolio of investment  quality  securities while providing high current income
exempt from regular  Federal  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 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  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 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 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
date of  purchase  are valued at current  market  quotation  until  maturity  or
disposition.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME:  Securities  transactions  are
recorded on 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  original  issue  discount  or  amortizes  premium  on
securities purchased using the interest method.

FEDERAL  INCOME  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  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.

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.

RECLASSIFICATION OF CAPITAL ACCOUNTS: Effective January 1, 1994, the Trust began
accounting  and reporting for permanent  differences  between  financial and tax
reporting  in  accordance  with  the  American  Institute  of  Certified  Public
Accountants' Statement of Position 93-2: Determination, Disclosure and Financial
Statement  of  Income,  Capital  Gain and  Return of  Capital  Distributions  by
Investment  Companies.  The effect of adopting the  statement for the year ended
October  31, 1999 was to increase  paid-in  capital in excess of par value,  and
increase  accumulated  net realized loss by $104.  Net  investment  income,  net
realized losses and net assets were not affected by this change.

NOTE 2. AGREEMENTS

     The Trust has an Investment  Advisory  Agreement with  BlackRock  Financial
Management,  Inc.,  (the  "Adviser"),  a  wholly-owned  subsidiary  of BlackRock
Advisors, Inc., which is a wholly-owned subsidiary of BlackRock,  Inc., which in
turn is an indirect majority-owned subsidiary of PNC Bank Corp. The Trust has an
Administration    Agreement   with   Princeton    Administrators,    L.P.   (the
"Administrator"),  an indirect  wholly-owned  affiliate of Merrill  Lynch & Co.,
Inc.

     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 the Administrator is also computed weekly
and payable monthly at an annual rate of 0.15% 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 of the Adviser.  The  Administrator  pays occupancy and
certain  clerical and accounting  costs of the Trust.  The Trust bears all other
costs and expenses.

                                       11


<PAGE>
NOTE 3. PORTFOLIO SECURITIES

     Purchases  and  sales  of  investment  securities,  other  than  short-term
investments,  for the year ended October 31, 1999,  aggregated  $99,511,656  and
$101,610,051, respectively.

     The federal income tax basis of the Trust's investments at October 31, 1999
was  $357,810,006,  and  accordingly,  net unrealized  depreciation  was $42,236
(gross  unrealized  appreciation - $9,801,443,  gross unrealized  depreciation -
$9,843,679).

      For Federal income tax purposes, the Trust had a capital loss carryforward
at  October  31,  1999 of  approximately  $315,000  which  will  expire in 2007.
Accordingly, no capital gain 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 16,707,093 common shares  outstanding at October 31, 1999, the Adviser owned
7,205 shares. As of October 31, 1999, there were 5,200 shares of Preferred Stock
outstanding as follows: Series T7-2,600 and Series T28-2,600.

     The Trust may classify or  reclassify  any unissued  shares of common stock
into  one or more  series  of  preferred  stock.  On April 1,  1993,  the  Trust
reclassified  2,600 shares of common stock and issued 2 series of Auction Market
Preferred Stock ("Preferred Stock") as follows:  Series T7-1,300 shares,  Series
T28-1,300  shares.  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 the Trust's Auction Market  Preferred
Stock  into two  shares  and  simultaneously  reduce  each  share's  liquidation
preference  from  $50,000 to $25,000 per share plus any  accumulated  but unpaid
dividends. The stock split occurred on July 24, 1995.

     Dividends on Series T7 are cumulative at a rate which is reset every 7 days
based on the results of an auction.  Dividends on Series T28 are also cumulative
at a rate  which is reset  every 28 days  based on the  results  of an  auction.
Divi-dend  rates  ranged from 2.95% to 6.00%  during the year ended  October 31,
1999.

     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  requirements  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 AND DISTRIBUTIONS

     Subsequent  to  October  31,  1999,  the  Board of  Directors  of the Trust
declared a dividend  from  undistributed  earnings of $0.0719  per common  share
payable December 1, 1999, to shareholders of record on November 15, 1999.

     For the period  November  1, 1999  through  November  30,  1999,  dividends
declared  on  Preferred  Stock  totalled  $387,473  in  aggregate  for  the  two
outstanding Preferred Stock series.

                                       12


<PAGE>

- --------------------------------------------------------------------------------
             THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                        REPORT OF INDEPENDENT AUDITORS
- --------------------------------------------------------------------------------
The  Shareholders  and Board of Directors of The  BlackRock  Investment  Quality
Municipal Trust Inc.:

     We have  audited  the  accompanying  statement  of assets and  liabilities,
including the portfolio of  investments,  of The  BlackRock  Investment  Quality
Municipal  Trust Inc.  as of October  31,  1999 and the  related  statements  of
operations for the year then ended and of changes in net  investment  assets for
each of the two years in the period then ended and the financial  highlights for
each of the five years in the period then ended. These financial  statements and
the financial  highlights are the responsibility of the Trust's management.  Our
responsibility  is to  express  an opinion  on these  financial  statements  and
financial highlights based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  Our procedures included confirmation of securities owned at October
31,  1999 by  correspondence  with the  custodian  and  brokers.  An audit  also
includes assessing the accounting principles used and significant estimates made
by  management,   as  well  as  evaluating  the  overall   financial   statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

     In our opinion,  such financial statements and financial highlights present
fairly,  in all  material  respects,  the  financial  position of The  BlackRock
Investment  Quality Municipal Trust Inc. at October 31, 1999, and the results of
its  operations,  the  changes in its net  investment  assets and its  financial
highlights  for the  respective  stated  periods in  conformity  with  generally
accepted accounting principle. [GRAPHIC OMITTED]

/s/ Deloitte & Touche LLP
- -------------------------
Deloitte & Touche LLP
New York, New York
December 13, 1999

                                       13


<PAGE>

- --------------------------------------------------------------------------------
             THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                                TAX INFORMATION
- --------------------------------------------------------------------------------
     We are required by the  Internal  Revenue Code to advise you within 60 days
of the Trust's  fiscal year end as to the federally  exempt  interest  dividends
received by you during such fiscal year. Accordingly,  during the year the Trust
paid Federal  tax-exempt  dividends of $0.8628 per share to common  shareholders
and $776.23 per share to preferred  shareholders.  Additionally,  the  following
summarizes the special  taxable  distributions  declared by the Trust during the
fiscal year:

<TABLE>
<CAPTION>
                                                                   SHORT-TERM       LONG-TERM
                                          RECORD       PAYABLE       CAPITAL      CAPITAL GAINS
                                           DATE         DATE          GAIN             20%

                                        ----------   ----------   ------------   --------------
<S>                                     <C>          <C>          <C>            <C>

Common Stock Shareholders ...........    12/15/98     12/31/98   0.084296        0.065603
Preferred Stock Series T-7 ..........    11/10/98     11/12/98      16.18           12.59
Preferred Stock Series T-7 ..........    11/17/98     11/18/98      13.00           10.12
Preferred Stock Series T-7 ..........    11/24/98     11/25/98      16.18           12.59
Preferred Stock Series T-7 ..........    12/01/98     12/02/98      15.17           11.80
Preferred Stock Series T-7 ..........    12/08/98     12/09/98      14.02           10.91
Preferred Stock Series T-7 ..........    12/15/98     12/16/98       1.38            1.08
Preferred Stock Series T-28 .........    12/08/98     12/09/98      62.19           48.40
Preferred Stock Series T-28 .........     1/05/99      1/06/99      14.13           10.99
</TABLE>

- --------------------------------------------------------------------------------
                           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 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 New York
Stock Exchange or elsewhere for the participants'  accounts.  The Trust will not
issue any new shares under 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 income tax 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 address is on the front of this report.

                                       14


<PAGE>

- --------------------------------------------------------------------------------
             THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                             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 has evaluated its  information
technology  infrastructure  for Year 2000 compliance.  Substantially  all of the
Trust's information systems are supplied by the Adviser. The Adviser advised the
Trust that it has  evaluated  whether such systems are year 2000  compliant  and
that it expects to incur costs of up to  approximately  one  million  dollars to
complete such evaluation and to make any  modifications to its systems as may be
necessary to achieve Year 2000 compliance. The Adviser 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 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  continuing  to evaluate  the
Year 2000  compliance  of various  suppliers  of the Adviser and the Trust.  The
Adviser  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 received  responses from substantially all such suppliers with
respect to their Year 2000 compliance.  However,  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 advised the Trust that it
has prepared 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
Readiness Statement for purposes of that Act.

                                       15


<PAGE>

- --------------------------------------------------------------------------------
             THE BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC.
                              INVESTMENT SUMMARY
- --------------------------------------------------------------------------------
THE TRUST'S INVESTMENT OBJECTIVE
The BlackRock  Investment Quality Municipal Trust's  investment  objective is to
provide high current  income exempt from regular  Federal  income tax consistent
with the preservation of capital.

WHO MANAGES THE TRUST?
BlackRock  Financial  Management,   Inc.   ("BlackRock")  is  an  SEC-registered
investment  adviser.  As of September  30, 1999,  BlackRock  and its  affiliates
managed over $148 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-three  closed-end funds that are traded on either the New York or
American stock  exchanges,  and a $24 billion family of open-end equity and bond
funds.  BlackRock manages over 487 accounts,  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 or "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.
Examples of the types of securities that the Trust may invest in include general
obligation bonds,  which are backed by the full taxing power of the municipality
(states,  counties and cities), and revenue bonds, which are backed by a revenue
source  associated with the issuing  municipality  or by a special tax.  Revenue
bonds  include  those that are backed by  revenues  generated  by  universities,
hospitals,  housing  developments,  utilities,  public  facilities,  toll roads,
airports, etc.

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 municipal  debt  securities  that are  diversified  both  geographically  and
according to revenue source. As such, the Adviser actively manages the assets in
relation  to market  conditions  and  interest  rate  changes.  In  seeking  the
investment  objective,  the Trust does not expect to invest more than 25% of its
total assets in municipals that are issued by the same state. 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).

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.

                                       16


<PAGE>

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 advisor. The Trust
pays monthly dividends which are typically paid on the first 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.  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.

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  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 New York Stock  Exchange  (NYSE symbol:  BKN) 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.

                                       17


<PAGE>

- --------------------------------------------------------------------------------
             THE BLACKROCK 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 have all dividends and  distributions
                         of  capital   gains   automatically   reinvested   into
                         additional shares of a fund.

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 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.

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.

                                       18


<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 Target Term Trust Inc.                              BTT        12/00
The BlackRock 2001 Term Trust Inc.                                BTM        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
The BlackRock Pennsylvania Strategic Municipal Trust              BPS          N/A
The BlackRock Strategic Municipal Trust                           BSD          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.

                                       19


<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 Princeton Administrators, L.P.
P.O. Box 9095
Princeton, NJ 08543-9095
(800) 543-6217

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

AUCTION AGENT
Deutsche Bank
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

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

                        THE BLACKROCK INVESTMENT QUALITY
                              MUNICIPAL TRUST INC.
                       c/o Princeton Administrators, L.P.
                                 P.O. Box 9095
                            Princeton, NJ 08543-9095
                                 (800) 543-6217
                                                                      09247D-105
Printed on recycled paper                                             09247D-204
                                                                      09247D-303

THE BLACKROCK
INVESTMENT QUALITY
MUNICIPAL TRUST INC.
- ----------------------------------------------------------------------------
ANNUAL REPORT
OCTOBER 31, 1999

[GRAPHIC OMITTED]




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