AQUILA NARRAGANSETT INSURED TAX FREE INCOME FUND
N-30D, 2000-02-28
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<PAGE>
MANAGER AND FOUNDER
        AQUILA MANAGEMENT CORPORATION
        380 Madison Avenue, Suite 2300
        New York, New York 10017

INVESTMENT SUB-ADVISER
        CITIZENS BANK OF RHODE ISLAND
        One Citizens Plaza
        Providence, Rhode Island 02903

BOARD OF TRUSTEES
        Lacy B. Herrmann, Chairman
        Vernon R. Alden
        Paul Y. Clinton
        David A. Duffy
        William J. Nightingale
        J. William Weeks

OFFICERS
        Diana P. Herrmann, President
        Stephen J. Caridi, Senior Vice President
        Rose F. Marotta, Chief Financial Officer
        Richard F. West, Treasurer
        Edward M.W. Hines, Secretary

DISTRIBUTOR
        AQUILA DISTRIBUTORS, INC.
        380 Madison Avenue, Suite 2300
        New York, New York 10017

CUSTODIAN
        BANK ONE TRUST COMPANY, N.A.
        100 East Broad Street
        Columbus, Ohio 43271

TRANSFER AND SHAREHOLDER SERVICING AGENT
        PFPC INC.
        400 Bellevue Parkway
        Wilmington, Delaware 19809

INDEPENDENT AUDITORS
        KPMG LLP
        345 Park Avenue
        New York, New York 10154



Further information is contained in the Prospectus,
which must precede or accompany this report.



SEMI-ANNUAL
REPORT

DECEMBER 31, 1999

A TAX-FREE INCOME INVESTMENT

[Logo of Narragansett Tax-Free Income Fund: rectangle with profile view of a
sailboat on top of waves and three flying seagulls above it]

[Logo of the Aquila Group of Funds: an eagle's head]

ONE OF THE
AQUILAsm GROUP OF FUNDS
</PAGE>




<PAGE>
[Logo of Narragansett Tax-Free Income Fund: rectangle with profile view of a
sailboat on top of waves and three flying seagulls above it]

                   NARRAGANSETT INSURED TAX-FREE INCOME FUND

                               SEMI-ANNUAL REPORT

                  "WE TAKE SPECIAL CARE TO ENSURE YOUR SAFETY"


                                                               February 15, 2000

Dear Fellow Shareholders:

     Every now and then, we come across  something that triggers a special point
worth considering. This happened to us on a recent trip on United Airlines. When
a pre-flight  announcement was made that stated, "We take special care to ensure
your  safety,"  that  remark  brought  home to us a point that we  practice on a
continuous basis with Narragansett Insured Tax-Free Income Fund.

     We know from our  surveys  that most of the  shareholders  of  Narragansett
Insured  Tax-Free  Income Fund are looking  forward to retiring or have  already
retired.  These  are a very  special  group of people - and we work very hard to
make sure that we are addressing their needs.

     Once one is no longer in the work force,  it is essential that very careful
attention be paid to whatever  financial  resources are available to ensure that
these  resources are available  when needed.  It is just as important that these
financial  resources produce the kind of return, on a consistent basis, that our
shareholders can count on.

SAFETY

     Safety  with  municipal  securities  is a very  important  factor  to which
management  of your  Fund pays  considerable  attention.  Just  like the  United
Airlines announcement, "we take special care to ensure your safety" with all the
municipal securities in the Fund.

     It is important to note that not all municipal  securities are alike,  even
though they are generally  considered  the second safest type of investment  one
can make - right behind U.S.  Government  securities - because of the taxing and
revenue  raising  power  that  municipalities  possess.  Indeed,  there are nine
separate credit ratings assignable to municipal  securities by nationally renown
credit rating services,  ranging from the most  conservative  rating to the most
speculative. The highest rating assigned is AAA.

THE ADDITION OF INSURANCE

     Management of the  Narragansett  Fund has  specifically  chosen to have the
Fund's investment portfolio be comprised of those securities that are rated AAA.
Moreover, to the maximum extent practicable,  securities in the Fund's portfolio
will be insured by prominent  nationally  recognized  insurance  companies which
specialize in insuring municipal securities.  Such insurance is only provided by
these companies after a thorough  examination of the cash flow of any particular
municipal issuer. And, on their own, each of these insurance companies generally
have an AAA credit rating.

     What this stringent credit approach taken by the Fund does for investors is
to assure,  to the maximum  extent  possible,  that there will be timely payment
when due of interest and principal with each of the municipal  securities in the
Fund's investment portfolio.  WE REMEMBER RHODE ISLAND'S DEFAULT PROBLEMS OF THE
EARLY 1990'S.

     In this way, we feel that "we take special care to ensure your safety."

</PAGE>

<PAGE>


MATURITY OF TAX-FREE MUNICIPAL BONDS

     Another  factor  that we feel is  important  in  building  quality for your
investment is the maturity structure of the municipal bonds in the portfolio.

     As we have  explained to you in the past,  longer-term  maturity bonds will
usually  produce a higher return than  short-term  bonds.  However,  such longer
maturity bonds also have a higher degree of volatility of price fluctuations.

     Therefore,  we have structured the average maturity of Narragansett Insured
Tax-Free  Income Fund to be at a somewhat  intermediate  level - currently  11.9
years. This level is produced by using a "laddered" approach to the selection of
bonds in terms of their maturity.  We have a certain number of short-term  bonds
and a certain  number of  long-term  bonds,  but the  overall  average  of these
maturities  run  at an  intermediate  level.  In  this  way,  we can  capture  a
substantial  amount of possible income level  available from the bonds,  without
exposing the portfolio to an undue level of volatility.

     Our goal is to maintain a reasonably  high level of stability for the share
net asset value of the Fund,  while  producing the kind of tax-free  return that
people want to see from their investment.

     This is another  strategy  that we use in  building  quality,  safety,  and
stability into your investment in Narragansett Insured Tax-Free Income Fund.

RELIABILITY OF PAYMENTS

     We also  recognize  that most of our  shareholders  depend upon the monthly
tax-free  income  produced  by  Narragansett   Insured   Tax-Free  Income  Fund.
Shareholders  want to know that the income  from the Fund is there when the time
comes to pay various bills.

     The quality character of the portfolio ensures that this is the case.

     We want to make sure that, to the best of our ability, the monthly payments
add up to a satisfactory level of income that you can be SURE will be there when
you need it.

YOUR CONFIDENCE IS APPRECIATED

     As always, we again wish to express our appreciation for the confidence you
have shown by your investment in Narragansett Insured Tax-Free Income  Fund.  We
can  assure  you  that  we  will continually do our best to merit your continued
level of trust.

            Sincerely,

Diana P. Herrmann
President

Lacy B. Herrmann
Chairman, Board of Trustees
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                            STATEMENT OF INVESTMENTS
                         DECEMBER 31, 1999 (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                 RATING
   FACE                                                                         MOODY'S/
  AMOUNT            GENERAL OBLIGATION BONDS (46.3%)                              S&P                  VALUE
</CAPTION>
<S>                 <C>  <C>                                                    <C>                <C>
                    Town of Bristol, Rhode Island, MBIA Insured
$ 1,000,000              5.100%, 08/15/07                                       Aaa/AAA            $  1,000,000
    100,000              6.000%, 12/15/11                                       Aaa/AAA                 103,625
    100,000              6.000%, 12/15/12                                       Aaa/AAA                 103,625
                    Town of Burrillville, Rhode Island, AMBAC Insured
    405,000              5.300%, 07/15/08                                       Aaa/AAA                 407,025
                    Town of Burrillville, Rhode Island, MBIA Insured
    250,000              5.400%, 10/15/06                                       Aaa/AAA                 255,937
    250,000              5.500%, 10/15/07                                       Aaa/AAA                 255,625
    150,000              5.700%, 10/15/10                                       Aaa/AAA                 154,875
                    Central Falls, Rhode Island, MBIA Insured
    500,000              4.900%, 11/15/05                                       Aaa/AAA                 499,375
    500,000              5.200%, 11/15/09                                       Aaa/AAA                 497,500
                    Cranston, Rhode Island
  1,120,000              5.300%, 07/15/05, MBIA Insured                         Aaa/AAA               1,136,800
    300,000              5.500%, 06/15/07, MBIA Insured                         Aaa/AAA                 307,500
    500,000              5.450%, 11/15/11, FGIC Insured                         Aaa/AAA                 503,750
                    Town of Cumberland, Rhode Island, MBIA Insured
    345,000              5.500%, 09/01/06                                       Aaa/AAA                 359,231
    500,000              5.600%, 10/01/08                                       Aaa/AAA                 511,875
    500,000              5.000%, 08/01/15                                       Aaa/AAA                 454,375
                    Town of Lincoln, Rhode Island, MBIA Insured
    400,000              5.100%, 01/15/06                                       Aaa/AAA                 402,500
    400,000              5.200%, 08/15/06                                       Aaa/AAA                 405,000
  1,000,000              5.500%, 08/15/10                                       Aaa/AAA               1,013,750
    100,000              5.625%, 04/15/11                                       Aaa/AAA                 102,125
                    Town of Lincoln, Rhode Island, FGIC Insured
    250,000              5.750%, 08/01/15                                       Aaa/AAA                 250,938
                    Narragansett, Rhode Island, MBIA Insured
    300,000              5.100%, 09/15/06                                       Aaa/AAA                 301,875
  1,000,000              5.300%, 09/15/08                                       Aaa/AAA               1,005,000
                    Newport, Rhode Island, MBIA Insured
    150,000              6.550%, 08/15/07                                       Aaa/AAA                 157,125

</PAGE>
<PAGE>


	              Newport, Rhode Island, Series B, FGIC Insured
    250,000              4.900%, 05/15/06                                       Aaa/AAA                 248,750
    500,000              5.000%, 05/15/07                                       Aaa/AAA                 496,875
    500,000              5.100%, 05/15/08                                       Aaa/AAA                 496,250
                    North Providence, Rhode Island, Series A,
                         MBIA Insured
    400,000              5.700%, 07/01/08                                       Aaa/AAA                 414,500
                    Pawtucket, Rhode Island, MBIA Insured
    100,000              6.650%, 09/15/06                                       Aaa/AAA                 105,250
    600,000              4.300%, 09/15/09                                       Aaa/AAA                 557,250
    250,000              4.400%, 09/15/10                                       Aaa/AAA                 231,562
                    Pawtucket, Rhode Island, FGIC Insured
    310,000              5.625%, 04/15/07                                       Aaa/AAA                 319,688
    500,000              5.750%, 04/15/09                                       Aaa/AAA                 516,875
                    Providence, Rhode Island, MBIA Insured
    100,000              5.400%, 08/01/01                                       Aaa/AAA                 101,625
    100,000              5.500%, 01/15/04                                       Aaa/AAA                 102,750
    100,000              5.900%, 01/15/09                                       Aaa/AAA                 103,375
    200,000              5.250%, 01/15/12                                       Aaa/AAA                 194,750
                    Providence, Rhode Island, FSA Insured
    700,000              5.500%, 01/15/11                                       Aaa/AAA                 702,625
                    Providence, Rhode Island, AMBAC Insured
  1,925,000              5.200%, 04/01/11                                       NR/AAA                1,888,906
                    East Providence, Rhode Island, MBIA Insured
    500,000              5.400%, 05/15/07                                       Aaa/AAA                 509,375
                    Commonwealth of Puerto Rico, MBIA Insured
    100,000              5.750%, 07/01/09                                       Aaa/AAA                 102,625
    100,000              6.000%, 07/01/14                                       Aaa/AAA                 103,250
    500,000              5.875%, 07/01/18                                       Aaa/AAA                 523,750
                    Commonwealth of Puerto Rico, AMBAC Insured
    500,000              5.850%, 07/01/15                                       Aaa/AAA                 523,125
                    State of Rhode Island Refunding, Series A,
                         FGIC Insured
  1,000,000              5.000%, 07/15/05                                       Aaa/AAA               1,006,250
                    State of Rhode Island Refunding, Series A,
                         FGIC Insured
  1,000,000              5.125%, 07/15/11                                       Aaa/AAA                 972,500
                    State of Rhode Island Refunding, Series A,
                         FGIC Insured
</PAGE>

<PAGE>


1,500,000              5.000%, 09/01/15                                       Aaa/AAA               1,363,125
                    Rhode Island Consolidated Capital Development
                         Loan, 1991 Series B, AMBAC Insured
    300,000              6.250%, 05/15/07                                       Aaa/AAA                 307,485
                    Rhode Island Consolidated Capital Development
                         Loan, 1991 Series B, MBIA Insured
    380,000              6.250%, 05/15/09                                       Aaa/AAA                 390,488
    100,000              6.250%, 05/15/10                                       Aaa/AAA                 102,760
                    Rhode Island Consolidated Capital Development
                         Loan, 1992 Series A, FGIC Insured
  1,050,000              5.500%, 08/01/07                                       Aaa/AAA               1,077,562
                    Rhode Island Consolidated Capital Development
                         Loan, 1993 Series A, AMBAC Insured
  1,000,000              4.800%, 06/15/02                                       Aaa/AAA               1,005,000
                    Rhode Island Consolidated Capital Development
                         Loan, 1993 Series A, FGIC Insured
  1,000,000              5.100%, 11/01/13                                       Aaa/AAA                 946,250
                    Town of Scituate, Rhode Island, MBIA Insured
    375,000              5.500%, 04/01/09                                       Aaa/AAA                 379,688
                    South Kingstown, Rhode Island, MBIA Insured
    390,000              5.000%, 03/15/08                                       Aaa/AAA                 384,637
    390,000              5.050%, 03/15/09                                       Aaa/AAA                 384,150
    170,000              5.200%, 06/01/09                                       Aaa/AAA                 169,150
    170,000              5.250%, 06/01/10                                       Aaa/AAA                 169,363
    100,000              6.300%, 12/15/11                                       Aaa/AAA                 105,125
                    South Kingstown, Rhode Island, AMBAC Insured
    400,000              4.900%, 11/15/07                                       Aaa/AAA                 395,000
                    Warwick, Rhode Island, MBIA Insured
    150,000              6.100%, 11/15/01                                       Aaa/AAA                 154,687
</PAGE>

<PAGE>


                    Warwick, Rhode Island, FSA Insured
    195,000              5.600%, 08/01/14                                       Aaa/AAA                 194,756
  1,000,000              5.000%, 03/01/18                                       Aaa/AAA                 883,750
                    West Warwick, Rhode Island, MBIA Insured
    500,000              5.800%, 01/01/04                                       Aaa/AAA                 518,750
    500,000              5.900%, 01/01/05                                       Aaa/AAA                 517,500
                    Woonsocket, Rhode Island, MBIA Insured
    385,000              5.125%, 03/01/11                                       Aaa/AAA                 375,856
    655,000              4.450%, 12/15/12                                       Aaa/AAA                 587,863
    685,000              4.550%, 12/15/13                                       Aaa/AAA                 619,069
                         Total General Obligation Bonds                                              31,443,351

                    REVENUE BONDS (54.7%)
                    HIGHER EDUCATION REVENUE BONDS (14.6%)
                    Rhode Island Health & Education Building Corp.,
                         Bryant College, MBIA Insured
    100,000              6.300%, 06/01/03                                       Aaa/AAA                 105,000
                    Rhode Island Health & Education Building Corp.,
                         Bryant College, 1992 2nd Series, MBIA Insured
     50,000              5.550%, 06/01/03                                       Aaa/AAA                  51,437
    100,000              5.800%, 06/01/05                                       Aaa/AAA                 104,000
                    Rhode Island Health & Education Building Corp.,
                         Johnson & Wales University, 1993 Series A,
                         AMBAC Insured
    100,000              5.200%, 04/01/04                                       NR/AAA                  101,000
    500,000              5.250%, 04/01/16                                       NR/AAA                  460,625
                    Rhode Island Health & Education Building Corp.,
                         Johnson & Wales University, 1992 Series A,
                         AMBAC Insured
    200,000              5.875%, 04/01/05                                       NR/AAA                  207,500
    150,000              5.750%, 04/01/12                                       NR/AAA                  152,813
    150,000              6.375%, 04/01/12                                       NR/AAA                  157,687
                    Rhode Island Health & Education Building Corp.,
                         Johnson & Wales University, 1999 Series A,
                         MBIA Insured
    465,000              5.500%, 04/01/15                                       Aaa/AAA                 450,469
    600,000              5.500%, 04/01/16                                       Aaa/AAA                 579,000

</PAGE>

<PAGE>



                    Rhode Island Health & Education Building Corp.,
                         Providence College, 1993 Series, MBIA Insured
    500,000              5.125%, 11/15/11                                       Aaa/AAA                 484,375
    300,000              5.600%, 11/01/09                                       Aaa/AAA                 304,125
    300,000              5.600%, 11/01/10                                       Aaa/AAA                 302,625
  1,500,000              5.600%, 11/01/22                                       Aaa/AAA               1,406,250
                    Rhode Island Health & Education Building Corp.,
                         Rhode Island School of Design, 1992 Series,
                         MBIA Insured
    200,000              5.800%, 06/01/05                                       Aaa/AAA                 208,750
                    Rhode Island Health & Education Building Corp.,
                         Brown University, 1993 Series, MBIA Insured
    500,000              5.400%, 09/01/18                                       Aaa/AAA                 463,750
    500,000              5.375%, 09/01/23                                       Aaa/AAA                 453,750
                    Rhode Island Health & Education Building Corp.,
                         Brown University, MBIA Insured
  1,000,000              5.000%, 09/01/23                                       Aaa/AAA                 845,000
                    Rhode Island Health & Education Building Corp.,
                         Roger Williams University, 1996 Series S,
                         AMBAC Insured
  1,000,000              5.500%, 11/15/11                                       NR/AAA                1,000,000
                    Rhode Island Health & Education Building Corp.,
                         Roger Williams University, 1996 Series S,
                         AMBAC Insured
  1,000,000              5.000%, 11/15/18                                       Aaa/AAA                 870,000
                    Rhode Island Health & Education Building Corp. -
                         Board of Governors, 1993 Series A, MBIA Insured
    450,000              5.300%, 09/15/08                                       Aaa/AAA                 450,000
    500,000              5.250%, 09/15/23                                       Aaa/AAA                 440,000
                    Rhode Island Health & Education Building Corp.,
                         Salve Regina, 1993 Series, AMBAC Insured
    150,000              5.300%, 03/15/00                                       NR/AAA                  150,378
    150,000              6.100%, 03/15/06                                       NR/AAA                  157,125
                                                                                                      9,905,659

</PAGE>

<PAGE>


                    HOSPITAL REVENUE BONDS (2.7%)
                    Rhode Island Health & Education Building Corporation,
                         Women & Infants Hospital, 1992 Series, FSA Insured
    100,000              6.150%, 09/01/05                                       Aaa/AAA                 104,500
    400,000              6.350%, 09/01/07                                       Aaa/AAA                 419,000
    300,000              6.550%, 09/01/13                                       Aaa/AAA                 315,750
                    Rhode Island Health & Education Building Corporation,
                         Kent County Memorial Hospital, 1992 Series,
                         MBIA Insured
    150,000              6.000%, 07/01/06                                       Aaa/AAA                 154,313
                    Rhode Island Health & Education Building
                         Corporation - Hospital Fing Lifespan Obligation
                         Group, MBIA Insured
  1,000,000              5.250%, 05/15/26                                       Aaa/AAA                 872,500
                                                                                                      1,866,063

                    MORTGAGE REVENUE-MULTI FAMILY BONDS (0.9%)
                    Rhode Island Housing & Mortgage Finance Corp,
                         1995 Series A, AMBAC Insured
    300,000              5.450%, 07/01/04                                       Aaa/AAA                 304,875
    300,000              5.550%, 07/01/05                                       Aaa/AAA                 306,000
                                                                                                        610,875

                    WATER AND SEWER REVENUE BONDS (3.9%)
                    Kent County Water Authority Revenue Bonds, 1994
                         Series A, MBIA Insured
    250,000              5.700%, 07/15/04                                       Aaa/AAA                 259,375
                    Bristol County Rhode Island Water Authority,
                         1997 Series A, MBIA Insured
    750,000              5.250%, 07/01/17                                       Aaa/AAA                 685,312
                    Bristol County Rhode Island, MBIA Insured
    300,000              5.000%, 12/01/08                                       Aaa/AAA                 295,875
                    Rhode Island Clean Water Protection Finance
                         Agency, Series A, AMBAC Insured
    500,000              4.750%, 10/01/20                                       Aaa/AAA                 413,750
                    Rhode Island Clean Water Protection Finance
                         Agency, Series 1999C, MBIA Insured
  1,000,000              5.125%, 10/01/11                                       Aaa/AAA                 967,500
                                                                                                      2,621,812

<\PAGE>

<PAGE>


                    UTILITY REVENUE BONDS (.1%)
                    Puerto Rico Electric Power Authority, Series Q,
                         FSA Insured
    100,000              5.750%, 07/01/07                                       Aaa/AAA                 103,125

                    DEVELOPMENT REVENUE BONDS (21.6%)
                    Rhode Island Convention Center Authority, 1991
                         Series A, MBIA Insured (Escrowed to Maturity)
    100,000              6.100%, 05/15/01                                       Aaa/AAA                 104,000
    150,000              6.300%, 05/15/01                                       Aaa/AAA                 156,375
    100,000              6.375%, 05/15/01                                       Aaa/AAA                 104,375
                    Rhode Island Convention Center Authority, 1993
                         Series B, MBIA Insured
    500,000              5.000%, 05/15/07                                       Aaa/AAA                 495,625
                    Rhode Island Convention Center Authority, 1993
                         Series A, AMBAC Insured
    500,000              5.400%, 05/15/08                                       Aaa/AAA                 506,875
    300,000              5.500%, 05/15/13                                       Aaa/AAA                 300,000
  2,500,000              5.000%, 05/15/20                                       Aaa/AAA               2,159,375
  1,200,000              5.000%, 05/15/23                                       Aaa/AAA               1,020,000
                    Rhode Island Public Building Authority State Public
                         Projects, 1990 Series A, AMBAC Insured
                         (Escrowed to Maturity)
    710,000              6.000%, 02/01/01                                       Aaa/AAA                 721,218
    300,000              6.600%, 02/01/01                                       Aaa/AAA                 312,327
                    Rhode Island Public Building Authority State Public
                         Projects, 1993 Series A, AMBAC Insured
    500,000              5.100%, 02/01/05                                       Aaa/AAA                 503,750
  1,000,000              5.250%, 02/01/10                                       Aaa/AAA                 992,500
                    Rhode Island Public Building Authority State Public
                         Projects, 1990 Series A, AMBAC Insured
    785,000              6.000%, 02/01/11                                       Aaa/AAA                 796,995

</PAGE>

<PAGE>


                    Rhode Island Public Building Authority State Public
                         Projects, 1989 Series A, AMBAC Insured
    370,000              7.000%, 02/01/00 (Escrowed to Maturity)                Aaa/AAA                 378,147
  1,000,000              5.250%, 02/01/09                                       Aaa/AAA                 993,750
                    Rhode Island Public Building Authority State Public
                         Projects, 1996 School Series B, MBIA Insured
    500,000              5.500%, 12/15/14                                       Aaa/AAA                 486,250
  1,000,000              5.250%, 12/15/14                                       Aaa/AAA                 941,250
    500,000              5.500%, 12/15/15                                       Aaa/AAA                 481,250
                    Rhode Island Public Building Authority State Public
                         Projects, 1999 Series A, AMBAC Insured
    500,000              5.000%, 12/15/09                                       Aaa/AAA                 489,375
                    Rhode Island State Economic Development Corp.,
                         University of Rhode Island Series, FSA Insured
    750,000              4.800%, 11/01/11                                       Aaa/NR                  701,250
    750,000              4.900%, 11/01/12                                       Aaa/NR                  695,625
    750,000              4.900%, 11/01/13                                       Aaa/NR                  679,688
    750,000              5.000%, 11/01/14                                       Aaa/NR                  681,562
                                                                                                     14,701,562

                    POLLUTION CONTROL REVENUE BONDS (3.2%)
                    Rhode Island Clean Water Protection, 1993 Series A,
                         MBIA Insured
    200,000              5.300%, 10/01/07                                       Aaa/AAA                 202,000
    300,000              5.400%, 10/01/09                                       Aaa/AAA                 302,625
  1,250,000              5.400%, 10/01/15                                       Aaa/AAA               1,201,563
                    Rhode Island Clean Water Protection, 1993 Series B,
                         MBIA Insured,
    500,000              4.500, 10/01/11                                        Aaa/AAA                 451,250
                                                                                                      2,157,438


</PAGE>

<PAGE>

              OTHER REVENUE BONDS (7.7%)

                    State of Rhode Island Depositors Economic
                         Protection Corp., 1992 Series A, FSA Insured
    210,000              6.000%, 08/01/01                                       Aaa/AAA                 215,250
                    State of Rhode Island Depositors Economic
                         Protection Corp., 1992 Series B, MBIA Insured
    135,000              5.500%, 08/01/06                                       Aaa/AAA                 138,544
    500,000              6.000%, 08/01/17                                       Aaa/AAA                 513,750
                    State of Rhode Island Depositors Economic
                         Protection Corp., MBIA Insured
    300,000              5.800%, 08/01/09                                       Aaa/AAA                 313,125
  1,045,000              5.250%, 02/01/11 (Escrowed to Maturity)                Aaa/AAA               1,033,244
  1,000,000              5.000%, 07/01/18                                       Aaa/AAA                 877,500
                    Rhode Island State and Local Facilities,
                         MBIA Insured
  1,500,000              5.400%, 08/01/08                                       Aaa/AAA               1,531,875
                    State of Rhode Island Certificates of Participation,
                         Howard Center Improvements, MBIA Insured
    400,000              5.250%, 10/01/10                                       Aaa/AAA                 395,500
    200,000              5.375%, 10/01/16                                       Aaa/AAA                 189,250
                                                                                                      5,208,038
                         Total Revenue Bonds                                                         37,174,572

                         Total Investments (cost $70,839,824*)      101.0%                           68,617,923
                         Liabilities in excess of other assets       (1.0)                             (686,102)
                         Net Assets                                 100.0%                         $ 67,931,821
</TABLE>

                      (*)Cost for Federal tax purposes is identical.

                                   PORTFOLIO ABBREVIATIONS:
                            AMBAC  - American Municipal Bond Assurance Corp.
                            FGIC   - Financial Guaranty Insurance Co.
                            FSA    - Financial Security Assurance
                            MBIA   - Municipal Bond Investors Assurance Corp.

                See accompanying notes to financial statements.
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                      STATEMENT OF ASSETS AND LIABILITIES
                         DECEMBER 31, 1999 (UNAUDITED)

<TABLE>
<S> <C> <C>                                                                     <C>
ASSETS
    Investments at value (cost $70,839,824)                                     $  68,617,923
    Interest receivable                                                             1,033,533
    Receivable for Fund shares sold                                                    27,605
    Due from Manager for reimbursement of expenses (note 3)                            10,468
        Total assets                                                               69,689,529

LIABILITIES
    Cash overdraft                                                                  1,085,882
    Payable for Fund shares redeemed                                                  549,913
    Dividends payable                                                                  85,430
    Distribution fees payable                                                          34,930
    Management fee payable                                                                932
    Accrued expenses                                                                      621
        Total liabilities                                                           1,757,708

NET ASSETS                                                                      $  67,931,821

    Net Assets consist of:
    Capital Stock - Authorized 80,000,000 shares, par value $.01 per share      $      69,631
    Additional paid-in capital                                                     70,970,593
    Net unrealized depreciation on investments                                     (2,221,901)
    Accumulated net realized loss on investments                                     (783,592)
    Distributions in excess of net investment income                                 (102,910)
                                                                                $  67,931,821

CLASS A
    Net Assets                                                                  $  61,219,264
    Capital shares outstanding                                                      6,275,082
    Net asset value and redemption price per share                              $        9.76
    Offering price per share (100/96 of $9.76 adjusted to nearest cent)         $       10.17

CLASS C
    Net Assets                                                                  $   4,263,671
    Capital shares outstanding                                                        437,076
    Net asset value and offering price per share                                $        9.75
    Redemption price per share (*a charge of 1% is imposed on the redemption
        proceeds of the shares, or on the original price, whichever is lower,
        if redeemed during the first 12 months after purchase)                  $        9.75*

CLASS I
    Net Assets                                                                  $      74,030
    Capital shares outstanding                                                          7,590
    Net asset value, offering and redemption price per share                    $        9.75

CLASS Y
    Net Assets                                                                  $   2,374,856
    Capital shares outstanding                                                        243,390
    Net asset value, offering and redemption price per share                    $        9.76
</TABLE>


                See accompanying notes to financial statements.
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                            STATEMENT OF OPERATIONS
             FOR THE SIX MONTHS ENDED DECEMBER 31, 1999 (UNAUDITED)

<TABLE>
<S>     <C>   <C>                                                   <C>               <C>
INVESTMENT INCOME:
        Interest income                                                               $  1,946,886

Expenses:
        Management fee (note 3)                                     $    185,973
        Distribution and service fees (note 3)                            71,082
        Trustees' fees and expenses                                       20,000
        Legal fees                                                        19,000
        Transfer and shareholder servicing agent fees                     14,000
        Shareholders' reports and proxy statements                        13,000
        Audit and accounting fees                                          8,000
        Custodian fees                                                     7,200
        Registration fees and dues                                         5,000
        Insurance                                                          1,700
        Miscellaneous                                                      9,070
                                                                         354,025

        Management fee waived (note 3)                                  (148,778)
        Reimbursement of expenses by Manager (note 3)                    (42,502)
        Expenses paid indirectly (note 7)                                 (7,200)
              Net expenses                                                                 155,545
              Net investment income                                                      1,791,341

REALIZED AND UNREALIZED LOSS ON INVESTMENTS:

        Net realized loss from securities transactions                  (783,592)
        Change in unrealized depreciation on investments              (2,126,570)

        Net realized and unrealized loss on investments                                 (2,910,162)
        Net decrease in net assets resulting from operations                          $ (1,118,821)
</TABLE>

                See accompanying notes to financial statements.
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                      STATEMENTS OF CHANGES IN NET ASSETS
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                              SIX MONTHS ENDED        YEAR ENDED
                                                                              DECEMBER 31,1999      JUNE 30, 1999
<S> <C> <C>                                                                     <C>                 <C>
OPERATIONS:
    Net investment income                                                       $   1,791,341       $   2,966,068
    Net realized loss from securities transactions                                   (783,592)             17,917
    Change in unrealized depreciation on investments                               (2,126,570)         (2,366,788)
        Change in net assets from operations                                       (1,118,821)            617,197

DISTRIBUTIONS TO SHAREHOLDERS (NOTE 6):
    Class A Shares:
    Net investment income                                                          (1,644,403)         (2,805,557)
    Net realized gain on investments                                                   -                   -

    Class C Shares:
    Net investment income                                                             (88,343)           (129,420)
    Net realized gain on investments                                                   -                   -

    Class I Shares:
    Net investment income                                                              (1,880)             (2,402)
    Net realized gain on investments                                                   -                   -

    Class Y Shares:
    Net investment income                                                            (100,508)            (77,910)
    Net realized gain on investments                                                   -                   -
        Change in net assets from distributions                                    (1,835,134)         (3,015,289)

CAPITAL SHARE TRANSACTIONS (NOTE 8):
    Proceeds from shares sold                                                       5,822,282          27,352,127
    Reinvested dividends and distributions                                          1,177,555           1,940,859
    Cost of shares redeemed                                                       (11,264,166)         (6,545,680)
        Change in net assets from capital share transactions                       (4,264,329)         22,747,306

        Change in net assets                                                       (7,218,284)         20,349,214

NET ASSETS:
    Beginning of period                                                            75,150,105          54,800,891

    End of period                                                               $  67,931,821       $  75,150,105
</TABLE>

                See accompanying notes to financial statements.
</PAGE>





                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                         NOTES TO FINANCIAL STATEMENTS
                                  (UNAUDITED)

1. ORGANIZATION

     Narragansett  Insured Tax-Free Income Fund (the "Fund"), a non-diversified,
open-end   investment   company,   was  organized  on  January  22,  1992  as  a
Massachusetts business trust and commenced operations on September 10, 1992. The
Fund is authorized to issue 80,000,000 shares and, since its inception to May 1,
1996,  offered only one class of shares.  On that date,  the Fund began offering
two  additional  classes  of  shares,  Class C and  Class Y shares.  All  shares
outstanding  prior to that date were  designated  as Class A shares and are sold
with a front-payment sales charge and bear an annual service fee. Class C shares
are sold with a  level-payment  sales charge with no payment at time of purchase
but level service and  distribution  fees from date of purchase through a period
of six years thereafter. A contingent deferred sales charge of 1% is assessed to
any Class C  shareholder  who redeems  shares of this Class within one year from
the date of purchase. The Class Y shares are only offered to institutions acting
for an investor in a fiduciary,  advisory, agency, custodian or similar capacity
and are not offered directly to retail investors. Class Y shares are sold at net
asset value without any sales charge, redemption fees, contingent deferred sales
charge  or  distribution  or  service  fees.  On  October  31,  1997,  the  Fund
established  Class I shares,  which are offered and sold only through  financial
intermediaries and are not offered directly to retail investors.  Class I Shares
are sold at net asset  value  without  any sales  charge,  redemption  fees,  or
contingent  deferred sales charge.  Class I Shares may carry a distribution  fee
and a service  fee.  All  classes  of  shares  represent  interests  in the same
portfolio  of  investments  and are  identical as to rights and  privileges  and
differ with  respect to the effect of sales  charges,  the  distribution  and/or
service fees borne by each class, expenses specific to each class, voting rights
on matters affecting a single class and the exchange privileges of each class.

2. SIGNIFICANT ACCOUNTING POLICIES

     The following is a summary of significant  accounting  policies followed by
the Fund in the  preparation  of its financial  statements.  The policies are in
conformity  with  generally  accepted   accounting   principles  for  investment
companies.

a)   PORTFOLIO  VALUATION:  Municipal securities which have remaining maturities
     of more than 60 days are valued at fair value each  business day based upon
     information provided by a nationally prominent  independent pricing service
     and periodically  verified through other pricing  services;  in the case of
     securities for which market  quotations are readily  available,  securities
     are valued at the mean of bid and asked quotations and in the case of other
     securities,  at fair value determined  under procedures  established by and
     under the general  supervision of the Board of Trustees.  Securities  which
     mature in 60 days or less are  valued at  amortized  cost if their  term to
     maturity at purchase was 60 days or less, or by amortizing their unrealized
     appreciation or  depreciation  on the 61st day prior to maturity,  if their
     term to maturity at purchase exceeded 60 days.

</PAGE>

<PAGE>


b)   SECURITIES   TRANSACTIONS  AND  RELATED   INVESTMENT   INCOME:   Securities
     transactions are recorded on the trade date. Realized gains and losses from
     securities transactions are reported on the identified cost basis. Interest
     income is recorded on the accrual basis and is adjusted for amortization of
     premium  and  accretion  of original  issue  discount.  Market  discount is
     recognized upon disposition of the security.

c)   FEDERAL  INCOME  TAXES:  It is the  policy  of the  Fund  to  qualify  as a
     regulated  investment  company  by  complying  with the  provisions  of the
     Internal Revenue Code applicable to certain investment companies.  The Fund
     intends to make  distributions of income and securities  profits sufficient
     to relieve it from all, or  substantially  all,  Federal  income and excise
     taxes.

d)   ALLOCATION OF EXPENSES:  Expenses,  other than class-specific expenses, are
     allocated daily to each class of shares based on the relative net assets of
     each class. Class-specific expenses, which include distribution and service
     fees and any other items that are  specifically  attributed to a particular
     class, are charged directly to such class.

e)   USE OF 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  increases  and
     decreases in net assets from operations during the reporting period. Actual
     results could differ from those estimates.

3.  FEES AND RELATED PARTY TRANSACTIONS

A)  MANAGEMENT ARRANGEMENTS:

     Aquila  Management  Corporation  (the  "Manager"),  the Fund's  founder and
sponsor, serves as the Manager for the Fund under an Advisory and Administration
Agreement with the Fund. The portfolio management of the Fund has been delegated
to a  Sub-Adviser  as described  below.  Under the  Advisory and  Administration
Agreement,  the Manager provides all administrative  services to the Fund, other
than those  relating  to the  day-to-day  portfolio  management.  The  Manager's
services  include  providing the office of the Fund and all related  services as
well as overseeing the activities of the Sub-Adviser and all the various support
organizations to the Fund such as the shareholder  servicing  agent,  custodian,
legal counsel,  auditors and distributor and additionally maintaining the Fund's
accounting  books and  records.  For its  services,  the  Manager is entitled to
receive a fee which is payable  monthly and computed as of the close of business
each day at the annual rate of 0.50 of 1% on the Fund's net assets.

     Citizens Bank of Rhode Island (the "Sub-Adviser")  serves as the Investment
Sub-Adviser for the Fund under a Sub-Advisory  Agreement between the Manager and
the Sub-Adviser.  Under this agreement,  the Sub-Adviser  continuously provides,
subject to oversight  of the Manager and the Board of Trustees of the Fund,  the
investment  program of the Fund and the  composition of its portfolio,  arranges
for the  purchases  and sales of  portfolio  securities,  and provides for daily
pricing of the Fund's portfolio.  For its services,  the Sub-Adviser is entitled
to receive a fee from the Manager  which is payable  monthly and  computed as of
the close of  business  each day at the annual  rate of 0.23 of 1% on the Fund"s
net assets.

</PAGE>

<PAGE>


     For the six months  ended  December 31, 1999,  the Fund  incurred  fees for
advisory  and  administrative   services  of  $185,973  of  which  $148,778  was
voluntarily  waived.  Additionally,  the Manager voluntarily agreed to reimburse
the Fund for other expenses during this period in the amount of $42,502. Of this
amount,  $32,034 was paid prior to December  31, 1999 and the balance of $10,468
was paid in early January 2000.

     Specific  details as to the nature and extent of the  services  provided by
the Manager and the Sub-Adviser are more fully defined in the Fund"s  Prospectus
and Statement of Additional Information.

B)  DISTRIBUTION AND SERVICE FEES:

     The Fund has  adopted a  Distribution  Plan (the  "Plan")  pursuant to Rule
12b-1 (the "Rule") under the Investment  Company Act of 1940.  Under one part of
the Plan, with respect to Class A Shares, the Fund is authorized to make service
fee payments to broker-dealers or others  ("Qualified  Recipients")  selected by
Aquila Distributors,  Inc., ("the Distributor"),  including, but not limited to,
any principal  underwriter of the Fund,  with which the  Distributor has entered
into  written  agreements  contemplated  by the Rule  and  which  have  rendered
assistance  in the  distribution  and/or  retention  of  the  Fund's  shares  or
servicing of shareholder accounts. The Fund makes payment of this service fee at
the annual rate of 0.15% of the Fund's average net assets represented by Class A
Shares.  For the six months ended  December  31,  1999,  service fees on Class A
Shares amounted to $49,594, of which the Distributor received $1,056.

     Under  another part of the Plan,  the Fund is  authorized  to make payments
with  respect to Class C Shares to  Qualified  Recipients  which  have  rendered
assistance in the distribution  and/or retention of the Fund's Class C shares or
servicing of shareholder accounts. These payments are made at the annual rate of
0.75% of the  Fund's net  assets  represented  by Class C Shares and for the six
months  ended  December  31, 1999,  amounted to $16,102.  In  addition,  under a
Shareholder  Services  Plan, the Fund is authorized to make service fee payments
with respect to Class C Shares to Qualified  Recipients  for providing  personal
services and/or maintenance of shareholder accounts.  These payments are made at
the annual rate of 0.25% of the Fund's net assets  represented by Class C Shares
and for the six months ended December 31, 1999, amounted to $5,367. The total of
these payments with respect to Class C Shares amounted to $21,469,  of which the
Distributor received $13,233.

     Under  another part of the Plan,  the Fund is  authorized  to make payments
with  respect  to Class I Shares  to  Qualified  Recipients.  Class I  Permitted
Payments  may not exceed,  for any fiscal year of the Fund, a rate set from time
to time by the Board of Trustees  (currently  0.10 of 1%) but not more than 0.25
of 1% of the average  annual net assets  represented  by the Class I Shares.  In
addition,  the Fund  has a  Shareholder  Services  Plan  under  which it may pay
services  fees.  These  fees may not  exceed an amount  equal to the  difference
between (i) 0.25 of 1% of the average annual net assets of the Fund  represented
by Class I Shares and (ii) the amount  paid under the Fund's  Distribution  Plan
with respect to the assets represented by the Class I Shares. That is, the total
payments under both plans will not exceed 0.25 of 1% of such net assets. For the
six months  ended  December 31, 1999,  these  payments  were made at the average
annual rate of 0.05% of such net assets and amounted to $19.

</PAGE>

<PAGE>


     Specific  details  about the Plans are more  fully  defined  in the  Fund's
Prospectus and Statement of Additional Information.

     Under a Distribution  Agreement,  the  Distributor  serves as the exclusive
distributor of the Fund's shares. Through agreements between the Distributor and
various  broker-dealer  firms ("dealers"),  the Fund's shares are sold primarily
through the facilities of these dealers having offices within Rhode Island, with
the bulk of sales commissions inuring to such dealers.  For the six months ended
December 31, 1999, the Distributor  received  commissions of $16,008 on sales of
Class A shares.

4. PURCHASES AND SALES OF SECURITIES

     During the six months ended December 31, 1999,  purchases of securities and
proceeds  from the sales of securities  aggregated  $5,578,378  and  $7,823,805,
respectively.

    At  December  31,  1999,  aggregate  gross  unrealized  appreciation for all
securities in which there is an excess of market value over tax cost amounted to
$504,704 and aggregate gross unrealized depreciation for all securities in which
there  is an excess  of tax cost over market value amounted to $2,726,605, for a
net unrealized depreciation of $2,221,901.

5. PORTFOLIO ORIENTATION

     Since  the Fund  invests  principally  and may  invest  entirely  in double
tax-free municipal  obligations of issuers within Rhode Island, it is subject to
possible risks  associated with economic,  political,  or legal  developments or
industrial or regional matters specifically  affecting Rhode Island and whatever
effects  these  may have  upon  Rhode  Island  issuers'  ability  to meet  their
obligations.  However,  to mitigate  against such risks,  the Fund has chosen to
have at least 65% and  possibly  the  entire  number of issues in the  portfolio
insured as to timely  payment of principal  and interest  when due by nationally
prominent municipal bond insurance  companies.  At December 31, 1999, all of the
securities  in the Fund were  insured.  While such  insurance  protects  against
credit risks with portfolio  securities,  it does not insure against market risk
of fluctuations in the Fund's share price and income return.

</PAGE>

<PAGE>


     The  Fund  is also  permitted  to  invest  in  U.S.  territorial  municipal
obligations  meeting  comparable quality standards and providing income which is
exempt from both regular  Federal and Rhode  Island  income  taxes.  The general
policy  of the  Fund  is to  invest  in such  securities  only  when  comparable
securities of Rhode Island issuers are not available in the market.  At December
31,  1999,  the Fund had 2.0% of its net assets  invested  in five  Puerto  Rico
municipal  issues,  all of which are rated AAA and insured or  collateralized by
U.S. Treasury securities.

6. DISTRIBUTIONS

     The Fund  declares  dividends  daily from net  investment  income and makes
payments monthly in additional shares at the net asset value per share, in cash,
or in a combination of both, at the shareholder's  option.  Net realized capital
gains, if any, are distributed annually and are taxable.

     The  Fund  intends  to  maintain,  to  the  maximum  extent  possible,  the
tax-exempt  status  of  interest  payments  received  from  portfolio  municipal
securities in order to allow dividends paid to shareholders  from net investment
income to be exempt from regular Federal and State of Rhode Island income taxes.
However,  due to differences  between financial  statement reporting and Federal
income tax reporting requirements, distributions made by the Fund may not be the
same as the Fund's net investment income, and/or ne t realized securities gains.
Further,  a small portion of the dividends  may,  under some  circumstances,  be
subject to taxes at ordinary  income  and/or  capital  gain  rates.  For certain
shareholders,  some dividend income may, under some circumstances, be subject to
the alternative minimum tax.

7. EXPENSES

     The Fund has  negotiated an expense offset  arrangement  with its custodian
wherein it receives credit toward the reduction of custodian fees and other Fund
expenses  whenever  there  are  uninvested  cash  balances.   The  Statement  of
Operations  reflects the total expenses before any offset,  the amount of offset
and the net expenses.  It is the general intention of the Fund to invest, to the
extent  practicable,  some or all of cash  balances in  income-producing  assets
rather than leave cash on deposit.

</PAGE>

<PAGE>


8. CAPITAL SHARE TRANSACTIONS

     Transactions in Capital Shares of the Fund were as follows:

<TABLE>
<CAPTION>
                                                 SIX MONTHS ENDED                        YEAR ENDED
                                                DECEMBER 31, 1999                       JUNE 30, 1999
                                            SHARES             AMOUNT             SHARES             AMOUNT
</CAPTION>
<S> <C> <C>                                <C>              <C>                  <C>             <C>
CLASS A SHARES:
    Proceeds from shares sold               517,585         $  5,163,928         2,012,032       $ 21,120,498
    Reinvested distributions                103,969            1,031,408           168,469          1,766,917
    Cost of shares redeemed                (904,958)          (8,958,502)         (588,072)        (6,175,657)
        Net change                         (283,404)          (2,763,166)        1,592,429         16,711,758

CLASS C SHARES:
    Proceeds from shares sold                34,944              350,502           172,113          1,808,558
    Reinvested distributions                  7,534               74,714            10,573            110,784
    Cost of shares redeemed                 (20,229)            (201,000)          (33,179)          (348,670)
        Net change                           22,249              224,216           149,507          1,570,672

CLASS I SHARES*:
    Proceeds from shares sold                  -                  -                  7,590             80,000
    Reinvested distributions                   -                  -                  -                 -
    Cost of shares redeemed                    -                  -                  -                 -
        Net change                             -                  -                  7,590             80,000

CLASS Y SHARES:
    Proceeds from shares sold                31,228              307,852           412,735          4,343,071
    Reinvested distributions                  7,173               71,433             6,063             63,158
    Cost of shares redeemed                (213,375)          (2,104,664)           (2,035)           (21,353)
        Net change                         (174,974)          (1,725,379)          416,763          4,384,876
Total transactions in Fund
    shares                                 (436,129)        $ (4,264,329)        2,166,289       $ 22,747,306
</TABLE>

* For the period November 4, 1998 to June 30, 1999.
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                              FINANCIAL HIGHLIGHTS
                                  (UNAUDITED)

FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
<TABLE>
<CAPTION>
                                                                             CLASS A(1)                             CLASS I(2)
                                                    SIX MONTHS                                                SIX MONTHS  PERIOD(3)
                                                      ENDED                  YEAR ENDED JUNE 30,                ENDED      ENDED
                                                     12/31/99     1999     1998     1997     1996     1995     12/31/99   6/30/99
</CAPTION>
<S> <C>                                               <C>        <C>      <C>      <C>      <C>      <C>        <C>        <C>
Net Asset Value, Beginning of Period                  $10.16     $10.47   $10.18   $9.93    $9.80    $9.44      $10.15     $10.54

Income from Investment Operations:
    Net investment income                              0.24       0.49     0.50     0.51     0.52     0.54       0.26       0.31
    Net gain (loss) on securities
      (both realized and unrealized)                  (0.39)     (0.30)    0.30     0.26     0.13     0.36      (0.41)     (0.38)

    Total from Investment Operations                  (0.15)      0.19     0.80     0.77     0.65     0.90      (0.15)     (0.07)

Less Distributions (note 6):
    Dividends from net investment income              (0.25)     (0.50)   (0.51)   (0.52)   (0.52)   (0.54)     (0.25)     (0.32)
    Distributions from capital gains                    -          -        -        -        -        -          -          -

    Total Distributions                               (0.25)     (0.50)   (0.51)   (0.52)   (0.52)   (0.54)     (0.25)     (0.32)

Net Asset Value, End of Period                        $9.76      $10.16   $10.47   $10.18   $9.93    $9.80      $9.75      $10.15

Total Return (not reflecting sales charge)(%)         (1.50)+     1.74     8.02     7.95     6.72     9.82      (1.52)+    (0.75)+

Ratios/Supplemental Data
    Net Assets, End of Period ($ thousands)           61,219     66,611   52,006   42,540   37,988   34,373       74         77
    Ratio of Expenses to Average Net Assets (%)        0.40*      0.39     0.28     0.23     0.15     0.07       0.41*      0.49*
    Ratio of Net Investment Income to
      Average Net Assets (%)                           4.84*      4.61     4.83     5.02     5.18     5.62       4.81*      4.54*
    Portfolio Turnover Rate (%)                        7.60+      1.36     0.02     5.29      0        0         7.60+      1.36

The expense and net investment income ratios without the effect of the
voluntary waiver of a portion of the management fee and the voluntary expense
reimbursement were:

    Ratio of Expenses to Average Net Assets (%)        0.89*      0.91     1.12     1.23     1.16     1.18       0.91*      0.87*
    Ratio of Net Investment Income to Average
      Net Assets (%)                                   4.34*      4.09     3.99     4.05     4.17     4.51       4.32*      4.16*

The expense ratios after giving effect to the waiver, reimbursement and
expense offset for uninvested cash balances were:

    Ratio of Expenses to Average Net Assets (%)        0.38*      0.35     0.27     0.21     0.14     0.06       0.39*      0.46*
</TABLE>

(1) Designated as Class A Shares on May 1, 1996.
(2) New Class of Shares established on October 31, 1997.
(3) From November 4, 1998 to June 30, 1999.
+   Not annualized.
*   Annualized.

                See accompanying notes to financial statements.
</PAGE>




<PAGE>
                   NARRAGANSETT INSURED TAX-FREE INCOME FUND
                        FINANCIAL HIGHLIGHTS (CONTINUED)
                                  (UNAUDITED)

FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
<TABLE>
<CAPTION>
                                                                CLASS C(1)                                  CLASS Y(1)
                                                SIX MONTHS                      PERIOD(2)  SIX MONTHS                      PERIOD(2)
                                                   ENDED    YEAR ENDED JUNE 30,   ENDED      ENDED      YEAR ENDED JUNE 30,   ENDED
                                                 12/31/99   1999   1998    1997  6/30/96    12/31/99   1999    1998    1997  6/30/96
</CAPTION>
<S> <C>                                           <C>     <C>     <C>     <C>     <C>        <C>      <C>     <C>     <C>     <C>
Net Asset Value, Beginning of Period              $10.16  $10.47  $10.18  $9.93   $9.94      $10.16   $10.47  $10.19  $9.93   $9.94

Income from Investment Operations:
    Net investment income                          0.20     0.38   0.40    0.41   0.07        0.26     0.49    0.59    0.56    0.09
    Net gain (loss) on securities (both
      realized and unrealized)                    (0.40)   (0.29)  0.30    0.26  (0.01)      (0.40)   (0.30)   0.29    0.26   (0.01)

    Total from Investment Operations              (0.20)    0.09   0.70    0.67   0.06       (0.14)    0.19    0.88    0.82    0.08

Less Distributions (note 6):
    Dividends from net investment income          (0.21)   (0.40) (0.41)  (0.42) (0.07)      (0.26)   (0.50)  (0.60)  (0.56)  (0.09)
    Distributions from capital gains                -        -      -       -      -           -        -       -       -       -

    Total Distributions                           (0.21)   (0.40) (0.41)  (0.42) (0.07)      (0.26)   (0.50)  (0.60)  (0.56)  (0.09)

Net Asset Value, End of Period                    $9.75   $10.16  $10.47  $10.18  $9.93      $9.76    $10.16  $10.47  $10.19  $9.93

Total Return (not reflecting sales charge) (%)    (2.02)+   0.76   6.94    6.89   0.60+      (1.43)+   1.79    8.80    8.48    0.80+

Ratios/Supplemental Data
    Net Assets, End of Period ($ thousands)       4,264    4,213  2,778     485    0.1       2,375    4,250     17      0.1     0.1
    Ratio of Expenses to Average Net
      Assets (%)                                   1.25*    1.35   1.29    1.08   0.20+       0.25*    0.33    0.28    0.08    0.14+
    Ratio of Net Investment Income to
      Average Net Assets (%)                       3.98*    3.65   3.77    4.20   0.70+       5.03*    4.65    4.66    5.20    0.89+
    Portfolio Turnover Rate (%)                    7.60+    1.36   0.02    5.29      0        7.60+    1.36    0.02    5.29       0

The expense and net investment income ratios without the effect of the
voluntary waiver of a portion of the management fee and the voluntary expense
reimbursement were:

    Ratio of Expenses to Average Net Assets (%)    1.74*    1.75   1.93    2.08   0.32+       0.74*    0.70    0.83    1.08    0.15+
    Ratio of Net Investment Income to Average
      Net Assets (%)                               3.48*    3.25   3.11    3.20   0.58+       4.53*    4.29    4.11    4.20    0.88+

The expense ratios after giving effect to the waiver, reimbursement and
expense offset for uninvested cash balances were:

    Ratio of Expenses to Average Net Assets (%)    1.23*    1.32   1.28    1.06   0.20+       0.23*    0.30    0.27    0.06    0.14+
</TABLE>

(1) New Class of Shares established on May 1, 1996.
(2) From May 1, 1996 to June 30, 1996.
 +   Not annualized.
 *  Annualized.

                See accompanying notes to financial statements.
</PAGE>




<PAGE>
SHAREHOLDER MEETING RESULTS (UNAUDITED)

The Annual Meeting of Shareholders of Narragansett  Insured Tax-Free Income Fund
(the "Fund") was held on October 1, 1999. The holders of shares representing 83%
of the total net asset  value of the  shares  entitled  to vote were  present in
person or by proxy.  At the meeting,  the following  matters were voted upon and
approved by the shareholders  (the resulting votes for each matter are presented
below).

1.    To elect Trustees.

                                Number of Votes:
      TRUSTEE                             FOR                        WITHHELD
      Lacy B. Herrmann                    62,263,543.54              331,043.28
      Vernon R. Alden                     62,226,632.26              367,954.56
      Paul Y. Clinton                     62,263,543.54              331,043.28
      David A. Duffy                      62,263,543.54              331,043.28
      William J. Nightingale              62,226,632.26              367,954.16
      J. William Weeks                    62,226,632.26              367,954.16


2.    To ratify the selection of KPMG LLP as the Fund's independent auditors.

                                Number of Votes:
      FOR                               AGAINST                  ABSTAIN
      62,132,824.98                     88,849.20                372,902.48
</PAGE>


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