BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC
N-30D, 1995-06-30
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- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
                       SEMI-ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------

                                                                    May 31, 1995




Dear Shareholder:

    The fixed income  markets  experienced  both  extremely  bearish and bullish
sentiment  during the semi-annual  period between November 1, 1994 and April 30,
1995.  Closed-end  bond funds  responded  to the broader  markets  with  similar
volatility  and hit all-time low stock prices during the fourth quarter of 1994.
These low levels of stock  valuation  were further  eroded by an unusually  high
degree of  tax-related  selling;  however,  closed-end  bond funds have staged a
resounding  rebound  during  the first  five  months of 1995.  The U.S.  economy
appears to have  responded  to the Fed's  vigilance  toward  inflation  with low
absolute  levels of inflation  and moderate  rates of growth.  This  scenario is
suggestive of a "soft landing" for the economy,  which has sparked a significant
Treasury  market  rally and  resulted in overall  strength in most fixed  income
markets.

    BlackRock  Financial  Management,  Inc., your Trust's investment adviser, is
pleased to report that its acquisition by PNC Bank, N.A.  ("PNC") was officially
completed on February 28, 1995. PNC is a commercial bank whose principal  office
is in Pittsburgh,  Pennsylvania  and is a wholly-owned by PNC Bank Corp., a bank
holding company.  The merger was structured to assure  continuity of performance
and service through  stability of our  organization.  BlackRock retains its name
and continues to operate out of its New York office.  All members of BlackRock's
management team have signed long-term  employment contracts and will continue to
be  responsible  for managing  BlackRock's  business so that  shareholders  will
notice no changes in the management of the Trust.

    You  will  note  several  enhancements  to the  Trust's  semi-annual  report
designed to improve the report's  usefulness to you. The letter to  shareholders
which reviews the markets and Trust's  investment  strategy over the semi-annual
period is provided by the  Trust's  portfolio  managers.  In  addition,  we have
included an investment  summary section which provides a synopsis of the Trust's
investment  objectives and guidelines  and reviews its investment  strategy.  We
appreciate  your  investment  in The  BlackRock  California  Investment  Quality
Municipal  Trust Inc. and look  forward to  continuing  to serve your  financial
needs.


Sincerely,


Laurence D. Fink                   Ralph L. Schlosstein
Chairman                           President



                                       1

<PAGE>

                                                                    May 31, 1995


Dear Shareholder:

    Characterized  by large swings in interest rates across the yield curve, the
semi-annual  period  between  November  1, 1994 and April 30,  1995  provided  a
challenging  investment  environment  for fixed income  products  including  The
BlackRock  California  Investment  Quality  Municipal  Trust Inc.  ("RAA" or the
"Trust").  At the  beginning  of the fiscal  period,  RAA was trading at a stock
price of $10.625,  while at the end of this fiscal  period  (April 30, 1995) the
Trust  closed at $12.50.  During  this same  period,  the net asset  value (NAV)
increased from $11.74 to $12.95. As we write this letter, the Trust's shares are
trading  at a price of $12.50 per share,  which is a 9.35%  discount  to its net
asset  value of $13.79 per  share.  The  current  annual  dividend  per share is
$0.7872,  which is  equivalent  to a yield of 6.30% on the current  stock price.
According to Lipper Analytical Services,  Inc., 94% of municipal closed-end bond
funds are trading at a discount to their net asset values. The significant fixed
income  market  rally of 1995 has  resulted in the Trust's NAV  increasing  more
rapidly  than its market  price,  which is  reflected  in the current  discount.
BlackRock  feels  that as  investors  adapt  to the  more  positive  tone in the
marketplace, the discount on RAA should narrow.

     A review  of the  fixed  income  markets  over the past year as well as the
trading  activity in the Trust's  portfolio  that has taken place since our last
annual report appears below. This information  should provide you with a greater
understanding  of the active  management  strategies you have hired BlackRock to
provide to the Trust.

The Fixed Income Markets

    The fourth  quarter of 1994 echoed the  underperformance  that  pervaded the
fixed  income  markets  throughout  1994.  The  market  experienced  periods  of
illiquidity  during November as mutual funds sold securities to meet redemptions
and dealers were  reluctant to add to their  already large  inventories.  From a
yield curve  perspective,  the municipal curve remained rather steep compared to
the taxable  curve.  However,  during the first quarter of 1995, the long end of
the  municipal  bond  market  witnessed  a dramatic  rally  which  resulted in a
flattening  of  the  municipal  yield  curve.  This  rally  was  a  result  of a
significant amount of cash which needed to be reinvested in the municipal market
due to  approximately  $35  billion  in cash flow from  principal  and  interest
payments as well as crossover  accounts  returning  to the market  aggressively.
Ratios of  long-term  municipal  yields to long-term  Treasury  yields ended the
quarter at 78.7%, the richest levels we have experienced since August of 1992.

    Interestingly,  the municipal  yield curve  flattened as the Treasury  yield
curve  steepened.  The divergent  trend between the shape of the municipal yield
curve and the Treasury curve was primarily the delayed response of the municipal
yield curve to the rapid  Treasury  curve  flattening in late 1994.  This recent
strong  performance  is likely to continue to some extent  because of  favorable
technical conditions. Individual investor demand for municipal bonds is expected
to remain  high  through the summer as  approximately  $60 billion in coupon and
redemption payments will flow into municipal investor hands during June and July
and will need to be  reinvested.  In  addition,  municipal  bond  supply,  which
declined 46% in the first  quarter of 1995 from the same  quarter last year,  is
expected to continue to diminish. These trends should allow municipal closed-end
bond funds like RAA to perform well in the near term.

    Recently  proposals for tax  simplification,  particularly the creation of a
"flat tax" have begun to receive attention. Some versions of this proposal would
eliminate the taxation of all investment income,  which would offset the current
tax benefits of municipal bonds. This could result in an underperformance of the
municipal  market if the flat tax becomes a pivotal 1996  Presidential  campaign
issue. While actual tax reform is still at best two years away, we will continue
to actively  follow the situation  because  investor  concerns  about tax reform
could cause  dislocations  in the municipal  market,  creating  possible  buying
opportunities for the Trust.



                                       2

<PAGE>

    The  California  economy has been  improving over the fiscal period due to a
number of factors.  The state's  manufacturing  sector has grown recently as the
expansion  of world  economies  such as those of  Europe  and parts of Asia have
resulted in increased export demand for California's  manufactured  goods. While
the  participants  continue  to closely  monitor  the antics of Orange  County's
supervisors,  the market for other California  issuers  continues to be orderly.
The  situation in Orange County is not the result of an inability to pay as much
as a lack of willingness to pay. The Trust has no direct  exposure to the Orange
County Bankruptcy proceedings.


The Closed-End Bond Fund Industry

    During the final months of 1994,  investor  demand for closed-end bond funds
dropped to an all-time low level. Closed-end bond funds fell victim to a lack of
demand  stemming  from fears of rising  inflation  coupled with rising  interest
rates and historically  high levels of year-end tax swapping.  As a result,  the
prices of most closed-end bond funds, including RAA, dropped to historically low
levels.  Investors  who endured the market  slump and opted to "hold" or acquire
more shares of the Trust  during  these  tumultuous  markets  benefitted  from a
substantial  increase in both net asset  value and share price  during the first
quarter of 1995 as the market  environment for fixed income securities  improved
considerably.

    Reflecting the current strength of the fixed income markets, the majority of
domestic closed-end bond funds registered positive gains for the one year period
ended April 30, 1995 with an average total return* of 6.46%. According to Lipper
Analytical  Services,  Inc.,  RAA  ranked  #2  out of 27  Closed-End  California
Municipal  Bond Funds for the one-year  period ended April 30, 1995 with a total
return* of 9.72% versus its category's average of 7.11%.

- ---------------
*Total  return  was  calculated  based  on net  asset  values  and  assumes  the
reinvestment of dividends and distributions.

The Trust's Portfolio and Investment Strategy

    BlackRock  continues to actively manage the Trust's portfolio to selectively
modify the Trust's allocation to certain sectors,  issuers,  revenue sources and
types of bonds.  Due to the 1993 change in tax treatment of market  discounts on
individual  bonds, we have been favoring  premiums and discount  securities over
those  selling  near par value  since we  believe  that the  market is not fully
valuing  the  effects  of the tax  change  on par  bonds.  The  following  table
illustrates the sector reallocations during the fiscal period:


                                Sector Breakdown

- --------------------------------------------------------------------------------
       Sector                   April 30, 1995           October 31, 1994
- --------------------------------------------------------------------------------
  Water & Sewer                      18%                        14%
- --------------------------------------------------------------------------------
  Utility                            15%                        15%
- --------------------------------------------------------------------------------
  Transportation                     13%                        13%
- --------------------------------------------------------------------------------
  Miscellaneous Revenue              11%                         5%
- --------------------------------------------------------------------------------
  University                         10%                        10%
- --------------------------------------------------------------------------------
  Housing                            10%                         5%
- --------------------------------------------------------------------------------
  Sales Tax                           9%                        14%
- --------------------------------------------------------------------------------
  Lease                               5%                        15%
- --------------------------------------------------------------------------------
  City, County & State                5%                         5%
- --------------------------------------------------------------------------------
  Power                               4%                         4%
- --------------------------------------------------------------------------------




                                       3

<PAGE>

    The portfolio consists of investment grade municipal securities  (securities
rated at least  "BBB")  with  average  maturities  of 19 years.  We  continue to
closely monitor the credit quality of the Trust's assets, 73% of which are rated
either  "AAA" or "AA",  and subject the  credits to  rigorous  credit  analysis.
Currently, the breakdown by credit quality is as follows:


- --------------------------------------------------------------------------------
     Standard & Poor's/Moody's
          Credit Rating            April 30, 1995      October 31, 1994
- --------------------------------------------------------------------------------
             AAA/Aaa                    50%                   55%
- --------------------------------------------------------------------------------
              AA/Aa                     23%                    9%
- --------------------------------------------------------------------------------
               A/A                      24%                   32%
- --------------------------------------------------------------------------------
            BBB/Baa                      3%                    4%
- --------------------------------------------------------------------------------

    We thank you for your  investment  in The  BlackRock  California  Investment
Quality  Municipal  Trust Inc.  Please feel free to contact us at (800) 227-7BFM
(7236)  if you  have  specific  questions  which  were  not  addressed  in  this
semi-annual report.

Sincerely,



Robert Kapito                               Kevin Klingert
Vice Chairman and                           Principal and Municipal 
Senior Portfolio Manager                    Portfolio Manager
BlackRock Financial Management, Inc.        BlackRock Financial Management, Inc.



- --------------------------------------------------------------------------------
        The BlackRock California Investment Quality Municipal Trust Inc.
- --------------------------------------------------------------------------------
  Symbol on American Stock Exchange:                          RAA
- --------------------------------------------------------------------------------
  Initial Offering Date:                                  May 28, 1993
- --------------------------------------------------------------------------------
  Closing Stock Price as of 4/30/95:                         $12.50
- --------------------------------------------------------------------------------
  Net Asset Value as of 4/30/95:                             $12.95
- --------------------------------------------------------------------------------
  Yield on Closing Stock Price as of 4/30/95 ($12.50)1:      6.30%
- --------------------------------------------------------------------------------
  Current Monthly Distribution per Share2:                  $0.0656
- --------------------------------------------------------------------------------
  Current Annualized Distribution per Share2:               $0.7872
- --------------------------------------------------------------------------------

1Yield on Closing Stock Price is  calculated by dividing the current  annualized
 distribution per share by the closing stock price per share.
2The distribution is not constant and is subject to change.



                                       4

<PAGE>

- --------------------------------------------------------------------------------
The BlackRock California Investment
Quality Municipal Trust Inc.
Portfolio of Investments
April 30, 1995
(Unaudited)

<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------------------------------------------------
        Principal
          Amount                                                                                                     Value
Rating*   (000)                            Description                                                             (Note 1)
- ----------------------------------------------------------------------------------------------------------------------------

                  LONG-TERM INVESTMENTS-156.9%
<S>      <C>      <C>                                                                                             <C>       
AAA      $1,000   Anaheim Pub. Fin. Auth. Rev., Elec. Util. Projs., 5.55%, 10/01/12, MBIA ......................  $  941,410
A+        1,250   California St., G.O., 6.40%, 2/01/20 .........................................................   1,210,675
                  California St. Hsg. Fin. Agcy. Rev.,
AA-       1,000     Ser. B-1, 6.45%, 2/01/11 ...................................................................   1,012,640
AA-       1,000     Home Mtge., Ser. G, 7.20%, 8/01/14 .........................................................   1,063,350
                  California St. Pub. Wks. Brd. Lease, Rev.
A-        1,000     St. Univ. Proj., Ser. A, 6.10%, 10/01/06 ...................................................   1,017,220
AAA       1,000     St. Univ. Proj., Ser. A, 6.40%, 12/01/16, AMBAC ............................................   1,021,470
A-        1,000     Dep. of Corrections, Ser. A., 6.875%, 11/01/14 .............................................   1,037,420
AAA       1,000   Los Angeles Dept. Wtr. & Pwr., Electric Plant Rev., 5.375%, 9/01/23, MBIA ....................     887,980
AA        1,000   Los Angeles Sanit. Dist. Fin. Auth. Rev., Solid Waste Res., 5.375%, 10/01/13 .................     908,040
AAA       1,000   Los Angeles Waste Wtr. Sys. Rev., Ser. B, 5.50%, 6/01/13, MBIA ...............................     937,850
A         1,000   MSR Pub. Pwr. Agcy, San Juan Proj., Ser. C, 6.875%, 7/01/19 ..................................   1,031,340
AAA       1,220   Northern California Transm. Rev., Ser. A, 5.50%, 5/01/14, MBIA ...............................   1,136,979
AAA       1,000   Orange Cnty. Arpt. Dev. Rev., 5.50%, 7/01/13, MBIA............................................     901,040
AAA       1,000   Sacramento Utility Dist. Elec. Rev., Ser. E, 5.70%, 5/15/12, MBIA ............................     959,960
AAA       1,000   San Francisco City & Cnty. Arpt. Comn. Rev., Intl. Arpt., Ser. 6, 6.125%, 5/01/09, AMBAC .....   1,002,760
AA        1,000   San Francisco City & Cnty. Pub. Utils. Comn. Wtr. Rev., Ser. A, 6.00%, 11/01/15 ..............     978,090
BBB         750   San Joaquin Hills Trans. Corridor Agcy. Toll Rd. Rev., 6.75%, 1/01/32 ........................     728,138
AAA       1,000   San Jose Redev. Agcy. Tax Alloc., 5.25%, 8/01/16, MBIA .......................................     890,670
AAA       1,000   Santa Cruz Cnty. Pub. Fin. Auth.Rev., Tax Alloc., Ser. A, 5.25%, 9/01/15, MBIA ...............     893,040
AA-       1,000   Southern California Pub. Pwr. Auth. Transm. Proj. Rev., 5.50%, 7/01/20 .......................     901,880
AAA       1,000   Univ. of California Rev., Ser. D, 6.10%, 9/01/10, MBIA .......................................   1,011,230
                                                                                                                 -----------
                  Total long-term investments (cost $20,351,705)                                                  20,473,182
                                                                                                                 -----------

                  SHORT-TERM INVESTMENT**-5.4%

A1+        700    California St. Hlth. Facs. Fin. Auth. Rev., Sutter Hlth. Sys., Ser. A, 5.00%, 5/01/95, FRDD
                    (cost $700,000) ............................................................................     700,000
                                                                                                                 -----------
                  Total Investments-162.3% (cost $21,051,705) ..................................................  21,173,182
                  Liabilities in excess of other assets-(4.8)% .................................................    (629,382)
                  Liquidation value of preferred stock-(57.5)% .................................................  (7,500,000)
                                                                                                                 -----------
                  Net Assets Applicable to Common Shareholders-100% ............................................ $13,043,800
                                                                                                                 ===========
<FN>
- --------------------
 * Rating: using the higher of Standard & Poor's, Moody's or Fitch's rating.
** For purposes of amortized cost valuation, the maturity date of this instrument is considered to be the later of the
   next date on which the security can be redeemed at par or the next date on which the rate of interest is adjusted.
</FN>
</TABLE>

<TABLE>

- -----------------------------------------------------------------------------------------------------------
                                     Key to Abbreviations

  <S>     <C>                                                <C>    <C>    
  AMBAC  -American Municipal Bond Assurance Corporation      G.O.   -General Obligation Bond
  FRDD   -Floating Rate Daily Demand**                       MBIA   -Municipal Bond Insurance Association
- -----------------------------------------------------------------------------------------------------------
</TABLE>
                       See Notes to Financial Statements.



                                       5

<PAGE>

(Left Column)

- ------------------------------------------------------------------
The BlackRock California Investment
Quality Municipal Trust Inc.
Statement of Assets and Liabilities
April 30, 1995
(Unaudited)
- ------------------------------------------------------------------
<TABLE>
<S>                                                    <C>
Assets
Investments, at value (cost $21,051,705) (Note 1) ...  $21,173,182
Cash ................................................       18,016
Interest receivable .................................      385,912
Deferred organization expenses and other assets .....       10,682
                                                       -----------
                                                        21,587,792
                                                       -----------
                                                      
Liabilities
Payable for investments purchased ...................    1,002,348
Advisory fee payable (Note 2) .......................        6,009
Dividends payable-preferred stock ...................        5,454
Dividends payable-common stock ......................        3,411
Administration fee payable (Note 2) .................        1,717
Other accrued expenses ..............................       25,053
                                                       -----------
                                                         1,043,992
                                                       -----------
Net Investment Assets                                  $20,543,800
                                                       ===========
Net investment assets were comprised of:
  Common stock:
Par value (Note 4) ..................................   $   10,071
Paid-in capital in excess of par ....................   13,897,103
Preferred stock (Note 4) ............................    7,500,000
                                                       -----------
                                                        21,407,174
Undistributed net investment income .................      147,478
Accumulated net realized loss .......................   (1,132,329)
Net unrealized appreciation .........................      121,477
                                                       -----------
Net investment assets, April 30, 1995 ...............  $20,543,800
                                                       ===========
Net assets applicable to common shareholders ........  $13,043,800
                                                       ===========
Net asset value per share:
  ($13,043,800 / 1,007,093 shares of common
  stock issued and outstanding) .....................       $12.95
                                                            ======
</TABLE>

(Right Column)

- ------------------------------------------------------------------
The BlackRock California Investment
Quality Municipal Trust Inc.
Statement of Operations
Six Months Ended April 30, 1995
(Unaudited)
- ------------------------------------------------------------------
<TABLE>
<S>                                                      <C>
Net Investment Income
Income
Interest and discount earned.........................    $ 627,277
                                                         ---------
Expenses
Investment advisory..................................       33,407
Reports to shareholders..............................       12,500
Administration.......................................        9,545
Directors............................................        6,000
Transfer agent.......................................        5,000
Audit................................................        3,500
Legal................................................        2,500
Custodian............................................        1,500
Miscellaneous........................................       16,430
                                                         ---------
Total expenses.......................................       90,382
                                                         ---------
Net investment income................................      536,895
                                                         ---------
Realized and Unrealized Gain (Loss)
on Investments (Note 3)
Net realized loss on investments.....................     (150,089)
Net change in unrealized appreciation on
  investments........................................    1,363,850
                                                         ---------
Net gain on investments..............................    1,213,761
                                                         ---------
Net Increase In Net Investment
Assets Resulting from Operations.....................   $1,750,656
                                                        ==========
</TABLE>

See Notes to Financial Statements.

                                       6

<PAGE>

- --------------------------------------------------------------------------------
The BlackRock California Investment Quality Municipal Trust Inc.
Statements of Changes in Net Investment Assets
(Unaudited)
- --------------------------------------------------------------------------------


<TABLE>
<CAPTION>

                                                                                    For the          For the
                                                                                   Six Months         Year
                                                                                     Ended            Ended
Increase (Decrease)in Net Investment Assets                                      April 30, 1995   October 31, 1994
                                                                                 --------------   ----------------
Operations:
<S>                                                                                <C>              <C>        
Net investment income ..........................................................   $  536,895       $ 1,043,684

Net realized loss on investments ...............................................     (150,089)         (982,210)

Net change in unrealized appreciation (depreciation) on investments ............    1,363,850        (2,049,564)
                                                                                   ----------       -----------
Net increase (decrease) in net investment assets resulting from operations .....    1,750,656        (1,988,090)

Dividends and distributions:

To common shareholders from net investment income ..............................     (396,385)         (792,772)

To preferred shareholders from net investment income ...........................     (135,977)         (182,317)

To common shareholders from capital gains ......................................         -              (25,882)

To preferred shareholders from capital gains ...................................         -               (5,503)

Capital stock transactions:

Capital charge with respect to initial public offering of shares ...............         -              (16,356)
                                                                                   ----------       -----------
Total increase (decrease)                                                           1,218,294        (3,010,920)

Net Investment Assets

Beginning of period ............................................................   19,325,506        22,336,426
                                                                                   ----------       -----------
End of period ..................................................................  $20,543,800       $19,325,506
                                                                                  ===========       ===========
</TABLE>

                       See Notes to Financial Statements.




                                       7

<PAGE>

- --------------------------------------------------------------------------------
The BlackRock California Investment Quality Municipal Trust Inc.
Financial Highlights
(Unaudited)
- --------------------------------------------------------------------------------


<TABLE>  
<CAPTION>
<S>                                                                           <C>              <C>               <C>

                                                                                  For the           For the       For the Period
                                                                                 Six Months           Year         June 4, 1993* 
                                                                                    Ended            Ended           Through  
PER SHARE OPERATING PERFORMANCE:                                               April 30, 1995  October 31, 1994  October 31, 1993
                                                                               --------------  ----------------  ----------------
Net asset value, beginning of period............................................  $  11.74         $  14.73       $  14.10
                                                                                  --------         --------       --------
  Net investment income.........................................................       .53             1.04            .31
  Net realized and unrealized gain (loss) on investments........................      1.21            (3.01)           .83
                                                                                  --------         --------       --------
Net increase (decrease) from investment operations..............................      1.74            (1.97)          1.14
                                                                                  --------         --------       --------
Dividends from net investment income to:
  Common shareholders...........................................................      (.39)            (.79)          (.20)
  Preferred shareholders........................................................      (.14)            (.18)          (.04)
                                                                                  --------         --------       --------
  Total dividends...............................................................      (.53)            (.97)          (.24)
                                                                                  --------         --------       --------
Distributions from capital gains to:
  Common shareholders...........................................................        -              (.03)            -
  Preferred shareholders........................................................        -              (.01)              -
                                                                                  --------         --------       --------
  Total distributions...........................................................        -              (.04)            -
                                                                                  --------         --------       --------
Capital charge with respect to issuance of common and preferred stock...........        -              (.01)          (.27)
                                                                                  --------         --------       --------
Net asset value, end of period**................................................  $  12.95         $  11.74       $  14.73#
                                                                                  ========         ========       ========
Per share market value, end of period**.........................................  $  12.50         $ 10.625       $  14.00
                                                                                  ========         ========       ========
TOTAL INVESTMENT RETURN(D):.....................................................    21.71%          (18.85)%          .68%

RATIOS TO AVERAGE NET ASSETS OF COMMON SHAREHOLDERS(D)(D):
Expenses........................................................................     1.48%(D)(D)(D)   1.25%          1.07%(D)(D)(D)
Net investment income...........................................................     8.81%(D)(D)(D)   7.81%          5.31%(D)(D)(D)

SUPPLEMENTAL DATA:
Average net assets of common shareholders (in thousands)........................  $ 12,294         $ 13,362       $ 14,504
Portfolio turnover rate.........................................................       63%             184%            13%
Net assets of common shareholders, end of period (in thousands).................  $ 13,044         $ 11,826       $ 14,836
Asset coverage per share of preferred stock, end of period......................  $136,959         $128,837       $148,910
                                                                                  --------         --------       --------
Preferred stock outstanding (in thousands)......................................  $  7,500         $  7,500       $  7,500

<FN>
- --------------
        * Commencement of investment operations.
       ** Net  asset  value  and  market  value are published in The Wall Street
          Journal each Monday.
       #  Net  asset  value  immediately  after  the closing of the first public
          offering was $14.01.
      (D) 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  value  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.  (D)(D)  Ratios  calculated  on the
          basis  of  income  and  expenses  applicable  to both the  common  and
          preferred  shares  relative  to  the  average  net  assets  of  common
          shareholders. Ratios do not reflect the effect of dividend payments to
          preferred shareholders.

(D)(D)(D) Annualized.

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

</FN> 
</TABLE>

See Notes to Financial Statements.

                                       8

<PAGE>
(left column)
- --------------------------------------------------------------------------------
The BlackRock California Investment
Quality Municipal Trust Inc.
Notes to Financial Statements
(Unaudited)
- --------------------------------------------------------------------------------

Note 1. Accounting Policies

The BlackRock  California  Investment 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 had no transactions until May 27, 1993
when it sold 7,093 shares of common  stock for  $100,012 to BlackRock  Financial
Management,  Inc., (the "Adviser").  Investment  operations commenced on June 4,
1993.

  The Trust's investment objective is to provide high current income exempt from
regular  federal  and  California   state  income  taxes   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.

Option  Selling/Purchasing:  When the Trust  sells or  purchases  an option,  an
amount  equal to the  premium  received  or paid by the Trust is  recorded  as a
liability or an asset and is

(right column)

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

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

  Financial  futures  contracts,  when used by the Trust,  help in maintaining a
targeted duration.  Duration is a measure of the price sensitivity of a security
or a portfolio to relative changes in interest rates.  For instance,  a duration
of "one" means that a  portfolio's  or a  security's  price would be expected to
change by approximately one percent with a one percent change in interest rates,
while a duration of "five"  would imply that the price would move  approximately
five  percent in  relation to a one percent  change in interest  rates.  Futures
contracts  can be sold to  effectively  shorten  an  otherwise  longer  duration
portfolio.  In the same sense,  futures contracts can be purchased to lengthen a
portfolio that is shorter than its duration  target.  Thus, by buying or selling
futures contracts,  the Trust can effectively "hedge" more volatile positions so
that  changes in  interest  rates do not change the  duration  of the  portfolio
unexpectedly.

  The Trust may invest in financial futures contracts  primarily for the purpose
of hedging its existing portfolio securities or


                                        9

<PAGE>

(left column)

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

Short Sales: The Trust may make short sales of securities as a method of hedging
potential  price declines in similar  securities  owned.  When the Trust makes a
short  sale,  it may  borrow  the  security  sold  short and  deliver  it to the
broker-dealer  through  which  it made  the  short  sale as  collateral  for its
obligation  to deliver the security upon  conclusion of the sale.  The Trust may
have to pay a fee to borrow the  particular  securities  and may be obligated to
pay over any payments

received on such borrowed securities.  A gain, limited to the price at which the
Trust sold the security short, or a loss, unlimited as to dollar amount, will be
recognized  upon the  termination of a short sale if the market price is greater
or less than the proceeds originally received.

Securities  Transactions  and Investment  Income:  Securities  transactions  are
recorded  on the trade  date.  Realized  and  unrealized  gains and  losses  are
calculated  on the  identified  cost basis.  Interest  income is recorded on the
accrual  basis  and  the  Trust  accretes  discounts  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.  Therefore 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.

(right column)

Deferred  Organization  Expenses:  A total of $16,000 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.

Note 2. Agreements

The  Trust  has  an  Investment  Advisory  Agreement  with  the  Adviser  and an
Administration  Agreement with Prudential Mutual Fund Management,  Inc. ("PMF"),
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 PMF 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 of the Adviser.  PMF pays occupancy and certain clerical and
accounting costs of the Trust. The Trust bears all other costs and expenses.

  On February 28, 1995, the advisor was acquired by PNC Bank,  N.A. As a result,
the  Adviser is a  wholly-owned  corporate  subsidiary  of PNC Asset  Management
Group, Inc., the holding company for PNC's asset management businesses.

Note 3. Portfolio Securities

Purchases and sales of investment securities, other than short-term investments,
for the period  ended April 30, 1995  aggregated  $12,184,790  and  $12,603,397,
respectively.

  The federal income tax basis of the Trust's  investments at April 30, 1995 was
substantially  the same as the basis for financial  reporting and,  accordingly,
net unrealized depreciation for federal income tax purposes, was $121,477 (gross
unrealized appreciation-$444,274; gross unrealized depreciation-$322,797).

  For federal income tax purposes,  the Trust had a capital loss carryforward at
October  31,  1994  of  approximately   $982,000  which  will  expire  in  2002.
Accordingly, no capital gain distribution is expected to be paid to shareholders
until net gains have been realized in excess of such amount.

                                       10

<PAGE>

(left column)

Note 4. Capital

There are 200 million shares of $.01 par value common stock  authorized.  Of the
1,007,093 shares outstanding at April 30, 1995, the Adviser owned 7,093 shares.

  Offering costs ($104,994) incurred in connection with the Trust's underwriting
of common  stock have been  charged  to paid-in  capital in excess of par of the
common stock.

  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
150 shares of common stock and issued a series of Auction Market Preferred Stock
("Preferred  Stock") Series W7. The Preferred  Stock has a liquidation  value of
$50,000 per share plus any accumulated but unpaid dividends.

  Underwriting  discounts  ($112,500) and offering costs  ($75,344)  incurred in
connection  with the  Preferred  Stock  offering  have been  charged  to paid-in
capital in excess of par of the common stock.

  Dividends  on Series W7 are  cumulative  at a rate which is reset every 7 days
based on the results of an auction.  Dividend  rates  ranged from 3.00% to 4.99%
during the period ended April 30, 1995.

  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

(right column)

$50,000  per share  plus any  accumulated  or unpaid  dividends  whether  or not
declared. The Preferred Stock is also subject to mandatory redemption at $50,000
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.

  On May 16,  1995  shareholders  approved a proposal to split each share of the
Trust's   Auction   Rate   Municipal   Preferred   Stock  into  two  shares  and
simultaneously  reduce  each  share's  liquidation  preference  from  $50,000 to
$25,000.

Note 5. Dividends

Subsequent  to April 30, 1995,  the Board of  Directors of the Trust  declared a
dividend from undistributed earnings of $0.0656 per common share payable May 31,
1995 to shareholders of record on May 15, 1995.

  For the period May 1, 1995 to May 31,  1995,  dividends  declared on Preferred
Stock totalled $25,919 in aggregate for the outstanding Preferred Stock.

                                       11

<PAGE>

Note 6. Quarterly Data

<TABLE>  
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
                                           Net realized   Net increase/decrease       Dividends
                                           and  unrealized  in net investment     and distributions
                            Net investment gains (losses)   assets resulting   Common     Preferred  
                                income      on investments  from operations    Shares      Shares**                       Period
                                     Per            Per               Per           Per           Per     Share price of    end
Quarterly          Total            Common         Common            Common       Common         Common    Common stock   net asset
 period           income   Amount   share   Amount  share   Amount   share  Amount share Amount   share    High     Low     value
- ---------         ------   ------   ------  ------ ------   ------   ------ ------ ----- ------  ------    ----     ---   ---------
<S>             <C>      <C>        <C>   <C>       <C>    <C>       <C>    <C>     <C>  <C>      <C>     <C>       <C>      <C>   
June 4, 1993*
to 
July 31, 1993   $ 90,374 $ 69,192   $.07  $ (8,976) $(.01) $  60,216 $ .06    -      -   $ 1,264    -     $15-1/8   $14-1/2  $13.88

August 1, 1993
to 
October 31, 1993 289,863  247,308    .24   847,522    .84  1,094,830  1.08 $198,196 $.20  42,690  $.04     15-1/8    14       14.73

November 1, 1993
to 
January 31, 1994 301,401  260,542    .26   112,026    .11    372,568   .37  224,076  .22  43,587   .05     14-1/4    12-7/8   14.84

February 1, 1994
to 
April 30, 1994   298,390  258,532    .26(2,288,516) (2.27)(2,029,984)(2.01) 198,195  .20  41,050   .04     13-3/4    11-1/4   12.58

May 1, 1994
to 
July 31, 1994    302,866  260,859    .26   377,218    .37    638,077   .63  198,193  .20  48,416   .05     12        11-1/4   12.97

August 1, 1994
to 
October 31, 1994 307,462  263,751    .26(1,232,502) (1.22)  (968,751) (.96) 198,190  .20  54,767   .05     11-3/4     9-7/8   11.74

November 1, 1994
to 
January 31, 1995 314,677  272,661    .27   505,599    .50    778,260   .77  198,190  .19  68,381   .07     11-1/4     9-7/8   12.25

February 1, 1995
to 
April 30, 1995   312,600  264,234    .26   708,162    .71    972,396   .97  198,195  .20  67,596   .07     12-1/2    11-3/8   12.95
- ------------------------------------------------------------------------------------------------------------------------------------
<FN>

**Commencement of investment operations.

**For the six months  ended April 30, 1995 the average  annualized  rate paid to preferred shareholders was 3.66%.
</FN>
</TABLE>

                                       12

<PAGE>


- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA 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 & 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 effect  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.

    At a Special  Meeting of Trust  Shareholders  held on  February  15, 1995 to
approve the Trust's advisory agreement with BlackRock Financial Management, Inc.
Shareholders approved the agreement. The result of the voting is as follows:

          Votes For ....................................... 816,127
          Votes Against ...................................  25,450
          Votes Withheld ..................................  27,734

    The Annual  Meeting of Trust  Shareholders  was held May 16, 1995 to vote on
the following matters:

    (1) To elect the following three Directors to serve as follows:

        Director                               Class        Term     Expiring
        --------                               -----        ----     --------
        James Grosfeld .......................   I        3 years       1998
        James Clayburn La Force, Jr. .........   I        3 years       1998
        Kent Dixon ...........................  III       2 years       1997

        and to elect  Richard E. Cavanagh as a Class I Director to represent the
preferred shareholders for a three year term expiring in 1998.

    Directors whose term of office  continues  beyond this meeting are Andrew F.
Brimmer, Frank J. Fabozzi, Laurence D. Fink and Ralph L.Schlosstein.

    (2) To  consider and act on a proposal  to split  each share of the  Trust's
Auction Rate  Preferred  Stock  (Preferred)  into two shares and  simultaneously
reduce each share's liquidation preference,  as provided in the Trust's Articles
Supplementary, from $50,000 to $25,000.

    (3) To ratify the selection of Deloitte & Touche LLP as  independent  public
accountants of the Trust for the fiscal year ending October 31, 1995.

    Shareholders elected the four Directors, approved the proposal to split each
Preferred  share into two shares and ratified the selection of Deloitte & Touche
LLP. The results of the voting was as follows:

                              Votes* For        Votes* Against   Votes* Withheld

James Grosfeld                 626,465                 -             126,958
James Clayburn La Force, Jr.   626,465                 -             126,958
Kent Dixon                     626,465                 -             126,958
Richard E. Cavanagh                134                 -                -
Preferred share split          597,334              132,790           23,299
Deloitte & Touche LLP          722,790               14,216           16,417

- ----------------
*The votes represent common and preferred  shareholders voting as a single class
except for the election of Richard E.  Cavanagh who was elected by the preferred
shareholders.




                                       13
<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

The Trust's Investment Objective

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

Who Manages the Trust?

BlackRock  Financial  Management,  Inc.  ("BlackRock"  or the  "Adviser") is the
investment adviser for the Trust.  BlackRock is a registered  investment adviser
specializing in fixed income securities.  Currently,  BlackRock manages over $27
billion of assets  across the  government,  mortgage,  corporate  and  municipal
sectors.  These  assets are managed on behalf of  institutional  and  individual
investors in 21 closed-end  funds,  several  open-end funds and over 75 separate
accounts for various clients in the U.S. and overseas. BlackRock is a subsidiary
of PNC  Asset  Management  Group  which is a  division  of PNC Bank,  N.A.,  the
nation's twelfth largest banking organization.

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  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   California   Municipal   Obligations,   which  include  debt
obligations  issued by or on behalf of California,  its political  subdivisions,
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 and California income tax. California  Municipal  Obligations are issued
to obtain funds for various  public  functions,  including the  construction  of
public facilities, the refinancing of outstanding obligations,  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  California  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  California  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,  Boston
Financial  Data  Services.  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 fund in a  declining  rate  environment,  but can  cause net
assets to decline faster in a rapidly rising interest



                                       14
<PAGE>

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 and California  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:  RAA) 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.










                                       15
<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA 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 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.





                                       16
<PAGE>

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


<TABLE>
<CAPTION>
Taxable Trusts
- ------------------------------------------------------------------------------------------
                                                                Stock             Maturity
Perpetual Trusts                                                Symbol              Date
                                                                ------            --------
<S>                                                              <C>                <C>
The BlackRock Income Trust Inc.                                  BKT                 N/A
The BlackRock North American Government Income Trust Inc.        BNA                 N/A

Term Trusts
The BlackRock 1998 Term Trust Inc.                               BBT                12/98
The BlackRock 1999 Term Trust Inc.                               BNN                12/99
The BlackRock Target Term Trust Inc.                             BTT                12/00
The BlackRock 2001 Term Trust Inc.                               BLK                06/01
The BlackRock Strategic Term Trust Inc.                          BGT                12/02
The BlackRock Investment Quality Term Trust Inc.                 BQT                12/04
The BlackRock Advantage Term Trust Inc.                          BAT                12/05
The BlackRock Broad Investment Grade 2009 Term Trust Inc.        BCT                12/09

Tax-Exempt Trusts
- ------------------------------------------------------------------------------------------
                                                                Stock             Maturity
Perpetual Trusts                                                Symbol              Date
                                                                ------            --------
The BlackRock Investment Quality Municipal Trust Inc.            BKN                 N/A
The BlackRock California Investment Quality Municipal Trust Inc. RAA                 N/A
The BlackRock Florida Investment Quality Municipal Trust         RFA                 N/A
The BlackRock New Jersey Investment Quality Municipal Trust Inc. RNJ                 N/A
The BlackRock New York Investment Quality Municipal Trust Inc.   RNY                 N/A

Term Trusts

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

                     If you would like further information
                 please call BlackRock at (800) 227-7BFM (7236)
                     or consult with your financial advisor.




                                       17
<PAGE>

- --------------------------------------------------------------------------------
                      BLACKROCK FINANCIAL MANAGEMENT, INC.
                                   AN OVERVIEW
- --------------------------------------------------------------------------------

    BlackRock Financial Management,  Inc. (BlackRock) is a registered investment
adviser which specializes in managing high quality fixed income securities, both
taxable  and tax exempt.  BlackRock  currently  manages  over $27 billion of net
assets in 111  portfolios  of  government,  mortgage,  corporate  and  municipal
securities.  These assets are managed on behalf of many individual  investors in
twenty-one  closed-end  funds and several  open-end  funds and on behalf of more
than 75  institutional  clients in the United States and  overseas.  BlackRock's
institutional  investor base includes  Chrysler  Corporation  Master  Retirement
Trust,  General  Retirement  System of the City of Detroit,  State  Treasurer of
Florida, General Electric Pension Trust and Unisys Corporation Master Trust.

    BlackRock was formed in April 1988 by fixed income  professionals who sought
to create  an asset  management  firm  specializing  in  managing  fixed  income
securities for individuals and  institutional  investors.  The  professionals at
BlackRock have extensive experience creating, analyzing and trading a variety of
fixed income instruments,  including the most complex structured securities.  In
fact, individuals at BlackRock are responsible for many of the major innovations
in the  mortgage-backed  and  asset-backed  securities  markets,  including  the
creation of the CMO, the floating rate CMO, the senior/subordinated pass-through
and the multi-class asset-backed security.

    BlackRock  is  unique  among  asset  management  and  advisory  firms in the
significant  emphasis it places on the  development  of  proprietary  analytical
capabilities.  A quarter of the professionals at BlackRock work full-time in the
design,  maintenance  and use of such systems  which are otherwise not generally
available to investors.  BlackRock's  proprietary  analytical tools are used for
evaluating,  investing in and designing investment  strategies and portfolios of
fixed  income  securities,   including  mortgage   securities,   corporate  debt
securities or tax-exempt securities and a variety of hedging instruments.

    BlackRock  has  developed  investment  products  which respond to investors'
needs and has been  responsible  for several  major  innovations  in  closed-end
funds.  BlackRock  introduced  the first  closed-end  mortgage  fund,  the first
taxable  and  tax-exempt  closed-end  funds to offer a finite  term,  the  first
closed-end  fund to achieve a AAAf  rating by  Standard & Poor's,  and the first
closed-end  fund to invest  primarily in North American  Government  securities.
BlackRock's  closed-end funds currently have dividend  reinvestment  plans which
are  designed  to  provide  an  ongoing  source of  demand  for the stock in the
secondary market. BlackRock manages a ladder of alternative investment vehicles,
with each fund having specific investment objectives and policies.

    In view of our  continued  desire to  provide a high level of service to all
our shareholders, BlackRock maintains a toll-free number for your questions. The
number is (800) 227-7BFM (7236).  We encourage you to call us with any questions
you may have about your  BlackRock  funds and thank you for the continued  trust
you place in our abilities.


                      If you would like further information
                     please call BlackRock at (800) 227-7BFM





                                       18
<PAGE>

(Left Column)

- ---------
BlackRock
- ---------

Directors
Laurence D. Fink, Chairman
Andrew F. Brimmer
Richard E. Cavanagh
Kent Dixon
Frank J. Fabozzi
James Grosfeld
James Clayburn La Force, Jr.
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 Mutual Fund Management, Inc.
One Seaport Plaza
New York, NY 10292

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
919 Third Avenue
New York, NY 10022

  The  accompanying  financial  statements as of
  April 30, 1995 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 California Investment
            Quality Municipal Trust Inc.
    c/o Prudential Mutual Fund Management, Inc.
                     32nd Floor
                 One Seaport Plaza
                 New York, NY 10292
                   (800) 227-7BFM
                             
                                            09247U-10-7
                                            09247U-20-6

(Right Column)

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

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

The BlackRock
California
Investment Quality
Municipal Trust Inc.
- -----------------------------
Semi-Annual Report
April 30, 1995





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