MINNESOTA MUNICIPAL TERM TRUST INC
N-30D, 1998-08-28
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<PAGE>

Minnesota Municipal Term Trusts - 1998 Semiannual Report

1998 Semiannual Report


[LOGO]


MINNESOTA
MUNICIPAL TERM
TRUSTS


MNA
MNB

<PAGE>

<TABLE>
<CAPTION>

CONTENTS
<S>                                                                         <C>
Portfolio Managers' Letter. . . . . . . . . . . . . . . . . . . . . . . . .  2

Financial Statements and Notes. . . . . . . . . . . . . . . . . . . . . . .  6

Investments in Securities

  MNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

  MNB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
</TABLE>

*** This report includes a glossary to help you understand financial terms used
in the portfolio managers' letter. When you see this symbol, it indicates a word
that is defined in the glossary.


[LOGO]


MINNESOTA MUNICIPAL TERM TRUSTS
- -------------------------------

PRIMARY INVESTMENTS
Investment-grade, tax-exempt Minnesota municipal obligations including municipal
zero-coupon securities.


FUND OBJECTIVE
Minnesota Municipal Term Trust (MNA) and Minnesota Municipal Term Trust II (MNB)
are non-diversified, closed-end management investment companies. The investment
objectives of MNA and MNB are to provide high current income exempt from regular
federal income tax and Minnesota personal income tax and to return $10 per share
to investors on or before April 15, 2002; and April 15, 2003, respectively -
although each fund's termination may be extended up to five years if necessary
to assist the fund in reaching its $10 per share objective. The funds' income
may be subject to federal and/or state of Minnesota alternative minimum tax.
Investors should consult their tax advisors. As with other investment companies,
there can be no assurance that each fund will achieve its objective.

<PAGE>

AVERAGE ANNUALIZED TOTAL RETURNS
- -------------------------------------------------------------------------------

Based on net asset value for the periods ended June 30, 1998
- -------------------------------------------------------------------------------


[GRAPH]


<TABLE>
<CAPTION>
                                                                ONE YEAR   FIVE YEAR   SINCE INCEPTION
<S>                                                             <C>        <C>         <C>
MINNESOTA MUNICIPAL TERM TRUST (MNA, inception 9/26/91)          6.92%       6.41%        8.54%
MINNESOTA MUNICIPAL TERM TRUST II (MNB, inception 4/24/92)       7.97%       6.48%        8.30%
</TABLE>


All total returns are through June 30, 1998, and reflect the reinvestment of 
distributions but not sales charges. Net asset valuev ***(NAV)-based 
performance is used to measure investment management results. As noted in 
earlier shareholder reports, we no longer compare the funds NAV performance 
to a market benchmark. This is because our primary goal is to meet the funds' 
investment objectives of providing high current income exempt from regular 
federal and state of Minnesota personal income tax and returning $10 per 
share to investors at the funds' termination dates.

Average annualized total returns based on the change in market price for the
one-year, five-year and since inception periods ended June 30, 1998, were 8.58%,
6.28% and 7.17% for MNA and 11.33%, 6.77% and 7.04% for MNB. These returns
assume reinvestment of all distributions and reflect sales charges on those
distributions described in the funds' dividend reinvestment plan, but not on
initial purchases.

PLEASE REMEMBER, YOU COULD LOSE MONEY WITH THESE INVESTMENTS. NEITHER SAFETY OF
PRINCIPAL NOR STABILITY OF INCOME IS GUARANTEED. Past performance does not
guarantee future results. The investment return and principal value of an
investment will fluctuate so that fund shares, when sold, may be worth more or
less than their original cost. Closed-end funds, such as these funds, often
trade at discounts to net asset value. Therefore, you may be unable to realize
the full net asset value of your shares when you sell.

*** - This symbol represents a graduation cap, used throughout this report to 
indicate terms defined in the glossary.

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

             1998 Semiannual Report   1   Minnesota Municipal Term Trusts
<PAGE>

PORTFOLIO MANAGERS' LETTER
- --------------------------------------------------------------------------------

[PHOTO]
DOUG WHITE, CFA,
shares responsibility for the management of the Minnesota Municipal Term Trusts.
He has 15 years of financial experience.
- --------------------------------------------------------------------------------

August 18, 1998
- --------------------------------------------------------------------------------


DEAR SHAREHOLDERS:

WE ARE PLEASED THAT THE MINNESOTA MUNICIPAL TERM TRUSTS (MNA AND MNB) REMAIN ON
TARGET TO MEET THEIR INVESTMENT OBJECTIVES OF PROVIDING HIGH TAX-EXEMPT INCOME
AND RETURNING $10 PER SHARE TO INVESTORS ON OR SHORTLY BEFORE THEIR TERMINATION
DATES. For the six month period ended June 30, 1998, the funds continued to earn
more than their monthly common and preferred stock*** dividends and add to their
dividend reserves. Since the funds' inceptions, MNA and MNB have maintained
monthly common stock distributions of 5.09 and 4.92 cents per share,
respectively. In addition, the funds' net asset values remain above the $10 per
share objective. As of June 30, 1998, the net asset values for MNA and MNB were
$11.29 and $10.97, respectively.

MUNICIPAL BOND PRICES CONTINUED TO BE VOLATILE, AND THE SUPPLY OF MUNICIPAL
ISSUES HAS INCREASED. Economic growth is showing signs of slowing, which
increases the probability of a recession. As more investors are looking for a
safe haven, the demand for U.S. Treasuries is surpassing the demand for
municipal obligations. This demand, along with refundings and new issuances,
have created an increased supply of municipal issues. During 1998, the Minnesota
supply of municipal issues increased by 85%, compared to 1997.

- --------------------------------------------------------------------------------
DISTRIBUTION HISTORY SINCE INCEPTION
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                        MNA        MNB
                                                     Inception  Inception
                                                      9/26/91    4/24/92
<S>                                                  <C>        <C>

Total Monthly Income Distributions Through 6/30/98
- --------------------------------------------------------------------------------

     Common Shareholders                               $4.01      $3.54
- --------------------------------------------------------------------------------

     Preferred Shareholders (On a Common Share Basis)  $1.02      $0.92
- --------------------------------------------------------------------------------

Total Capital Gains Distributions to Common
Shareholders Through 6/30/98                           $0.06      $0.07
- --------------------------------------------------------------------------------
</TABLE>

*** - This symbol represents a graduation cap, used throughout this report to 
indicate terms defined in the glossary.

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

             1998 Semiannual Report   2   Minnesota Municipal Term Trusts
<PAGE>

PORTFOLIO MANAGERS' LETTER (CONTINUED)
- --------------------------------------------------------------------------------

[PHOTO]
RON REUSS, ISFA,
shares responsibility  for the management of the Minnesota Municipal Term
Trusts. He has 29 years of financial experience.
- --------------------------------------------------------------------------------


AS THE FUNDS NEAR THEIR TERMINATION DATES, WE CONTINUE TO SELL LONGER 
MATURITY BONDS IN FAVOR OF THOSE CLOSER TO THE FUNDS' TERMINATIONS.  As shown 
in the chart below, the percentage of bonds with maturity or refunded 
dates*** within a year of the funds' termination dates continues to increase. 
Advance refunding*** is responsible for a portion of the increase in the 
percentages shown in the chart. We made appropriate trades as opportunities 
arose. As interest rates fell and bond prices increased, this restructuring 
generated capital gains, which were distributed to shareholders. Also, 
restructuring proceeds were reinvested at lower interest rates, decreasing 
fund income.

WE EXPECT THAT THE FUNDS' NET ASSET VALUES WILL DECLINE AS THE FUNDS NEAR 
THEIR TERMINATION DATES. There are several events that could cause this to 
occur. A number of bonds currently have prices higher than their market 
values. As the maturity and/or refunding dates of these bonds approach, their 
market prices will converge toward a price that is at or near their maturity 
or refunding prices. In addition, as the funds approach termination, we 
continue to sell longer maturity bonds in favor of bonds with shorter 
maturities and lower coupons*** that come due closer to the funds' 
termination dates. Any gains realized as a result of these sales will be 
distributed to shareholders, reducing net asset value. If the 
shorter-maturity bonds pay insufficient income to maintain our current 
dividends, the funds' dividend reserves may be used to pay common and/or 
preferred dividends. See the net asset value summary chart for each fund's 
current accumulated

- --------------------------------------------------------------------------------
BONDS MATURING WITHIN A YEAR OF TERMINATION
- --------------------------------------------------------------------------------
The chart below illustrates the percentage of bonds in each fund with maturity
or refunded dates within a year of the funds' termination dates.

<TABLE>
<CAPTION>
                                                      MNA            MNB
                                                   Inception      Inception
                                                    9/26/91        4/24/92

<S>                                                <C>            <C>
At the Fund's Inception                                0%             0%
- --------------------------------------------------------------------------------

As of June 30, 1998                                   60%            68%
- --------------------------------------------------------------------------------
</TABLE>

*** - This symbol represents a graduation cap, used throughout this report to 
indicate terms defined in the glossary.

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

             1998 Semiannual Report   3   Minnesota Municipal Term Trusts
<PAGE>

PORTFOLIO MANAGERS' LETTER (CONTINUED)
- --------------------------------------------------------------------------------


realized gains,*** unrealized appreciation*** and current dividend reserve. 
Shareholders also should remember that the funds are always subject to 
interest rate risk*** and credit risk,*** which have an impact on net asset 
value.

WE ARE OPTIMISTIC ABOUT THE MUNICIPAL MARKET AND DO NOT ANTICIPATE EVENTS THAT
WOULD CAUSE US TO CHANGE THE FUNDS' INVESTMENT STRATEGY AS THEY MOVE TOWARD
TERMINATION.  However, we remain watchful for further negative economic news or
a significant increase in the number of municipal bond refundings due to lower
interest rates and will manage your funds accordingly.

Thank you for your investment in the Minnesota Municipal Term Trusts. We remain
committed to providing you with quality service and look forward to helping you
achieve your investment goals.

Sincerely,


/s/ Douglas J. White    /s/ Ronald R. Reuss

Douglas J. White        Ronald R. Reuss
Portfolio Manager       Portfolio Manager

- --------------------------------------------------------------------------------
NET ASSET VALUE SUMMARY
- --------------------------------------------------------------------------------
Common Shares

<TABLE>
<CAPTION>
                                                            MNA          MNB
                                                         Inception    Inception
                                                          9/26/91      4/24/92

<S>                                                      <C>          <C>
Initial Offering Price                                    $10.00       $10.00
- --------------------------------------------------------------------------------

Initial Offering and Underwriting Expenses
(Common and Preferred Stock)                            - $ 0.66     - $ 0.67
- --------------------------------------------------------------------------------

Accumulated Realized Gains or Losses at 6/30/98         + $ 0.08     + $ 0.02
- --------------------------------------------------------------------------------

SUBTOTAL                                                  $ 9.42       $ 9.35
- --------------------------------------------------------------------------------

Dividend Reserve
(Undistributed Net Investment Income) at 6/30/98        + $ 0.81     + $ 0.55
- --------------------------------------------------------------------------------

Unrealized Appreciation on Investments at 6/30/98       + $ 1.06     + $ 1.07
- --------------------------------------------------------------------------------

NET ASSET VALUE PER SHARE ON 6/30/98                      $11.29       $10.97
</TABLE>

*** - This symbol represents a graduation cap, used throughout this report to 
indicate terms defined in the glossary.

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

             1998 Semiannual Report   4   Minnesota Municipal Term Trusts
<PAGE>

PORTFOLIO MANAGERS' LETTER (CONTINUED)
- --------------------------------------------------------------------------------

PORTFOLIO COMPOSITIONS
- --------------------------------------------------------------------------------
As a percentage of total assets on June 30, 1998


Minnesota Municipal Term Trust (MNA)

[CHART]

<TABLE>
<CAPTION>

<S>                                                          <C>
Water/Sewer/Pollution Control Revenue                        11%
Industrial Development Revenue                                2%
Leasing Revenue                                               8%
Other Assets                                                  3%
Sales/Excise Tax Revenue                                      5%
General Obligations                                          18%
Hospital Revenue                                             23%
Miscellaneous Revenue                                         1%
Electric Revenue                                             10%
Parking Revenue                                               1%
Health Services/HMO                                           1%
Housing Revenue                                              15%
Nursing Home Revenue                                          2%
</TABLE>


Minnesota Municipal Term Trust II (MNB)


[CHART]


<TABLE>
<CAPTION>

<S>                                                          <C>
General Obligations                                          18%
Nursing Home Revenue                                          1%
Education Revenue                                             6%
Parking Revenue                                               5%
Housing Revenue                                              16%
Hospital Revenue                                             12%
Water/Sewer/Pollution Control Revenue                         9%
Other Assets                                                  4%
Special Tax Revenue                                           3%
Industrial Development Revenue                                7%
Electric Revenue                                             19%
</TABLE>


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

             1998 Semiannual Report   5   Minnesota Municipal Term Trusts
<PAGE>
Financial Statements (Unaudited)
 
- --------------------------------------------------------------------------------
STATEMENTS OF ASSETS AND LIABILITIES  June 30, 1998
 ................................................................................
 
<TABLE>
<CAPTION>
                                                                MINNESOTA       MINNESOTA
                                                                MUNICIPAL       MUNICIPAL
                                                               TERM TRUST     TERM TRUST II
                                                              -------------   --------------
<S>                                                           <C>             <C>
ASSETS:
Investments in securities at market value* (note 2)
  (including repurchase agreements of $800,000 and $0,
  respectively)  ...........................................  $ 93,300,003    $  56,245,277
Cash in bank on demand deposit  ............................       177,976           62,028
Accrued interest receivable  ...............................     1,692,155        1,015,410
                                                              -------------   --------------
  Total assets  ............................................    95,170,134       57,322,715
                                                              -------------   --------------
 
LIABILITIES:
Preferred stock dividends payable (note 3)  ................        18,779            8,081
Payable for investment securities purchased on a when-issued
  basis (note 2)  ..........................................     1,605,838        2,001,056
Accrued investment management fee  .........................        19,195           11,353
Accrued remarketing agent fee  .............................         6,000            1,212
Accrued administrative fee  ................................        11,517            6,812
                                                              -------------   --------------
  Total liabilities  .......................................     1,661,329        2,028,514
                                                              -------------   --------------
  Net assets applicable to outstanding capital stock  ......  $ 93,508,805    $  55,294,201
                                                              -------------   --------------
                                                              -------------   --------------
 
COMPOSITION OF NET ASSETS:
Capital stock and additional paid-in capital (common and
  preferred stock)  ........................................  $ 82,336,727    $  49,636,375
Undistributed net investment income  .......................     4,653,282        1,873,253
Accumulated net realized gain on investments  ..............       460,320           82,287
Unrealized appreciation of investments  ....................     6,058,476        3,702,286
                                                              -------------   --------------
 
  Total - representing net assets applicable to outstanding
    capital stock  .........................................  $ 93,508,805    $  55,294,201
                                                              -------------   --------------
                                                              -------------   --------------
* Investments in securities at identified cost  ............  $ 87,241,527    $  52,542,991
                                                              -------------   --------------
                                                              -------------   --------------
 
NET ASSET VALUE AND MARKET PRICE OF COMMON STOCK:
Net assets applicable to common stock  .....................  $ 64,708,805    $  37,944,201
Shares of common stock outstanding (authorized 200 million
  shares for each fund of $0.01 par value)  ................     5,732,710        3,460,000
Net asset value  ...........................................  $      11.29    $       10.97
Market price  ..............................................  $      10.88    $       10.75
 
LIQUIDATION PREFERENCE OF PREFERRED STOCK:
Net assets applicable to preferred stock (note 3)  .........  $ 28,800,000    $  17,350,000
Shares of preferred stock outstanding (authorized 1 million
  shares for each fund)  ...................................         1,152              694
Liquidation preference per share  ..........................  $     25,000    $      25,000
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- ---------------------------------------------------------------------
 
           1998 Semiannual Report  6  Minnesota Municipal Term Trusts
<PAGE>
Financial Statements (Unaudited) (continued)
- ---------------------------------------------------------------------
 
STATEMENTS OF OPERATIONS  For the Six Months Ended June 30, 1998
 ................................................................................
 
<TABLE>
<CAPTION>
                                                               MINNESOTA       MINNESOTA
                                                               MUNICIPAL       MUNICIPAL
                                                               TERM TRUST    TERM TRUST II
                                                              ------------   -------------
<S>                                                           <C>            <C>
INCOME:
Interest  ..................................................  $ 2,777,467    $  1,578,460
                                                              ------------   -------------
 
EXPENSES (NOTE 5):
Investment management fee  .................................      115,854          68,575
Administrative fee  ........................................       69,512          41,145
Remarketing agent fee  .....................................       36,200          21,809
Custodian and accounting fees  .............................       36,737          26,120
Transfer agent fees  .......................................        1,148           1,124
Reports to shareholders  ...................................       11,601           7,419
Directors' fees  ...........................................        9,061           9,061
Audit and legal fees  ......................................       30,928          31,719
Other expenses  ............................................       23,183          11,989
                                                              ------------   -------------
  Total expenses  ..........................................      334,224         218,961
    Less expenses paid indirectly  .........................       (2,857)         (2,861)
                                                              ------------   -------------
 
  Total net expenses  ......................................      331,367         216,100
                                                              ------------   -------------
 
  Net investment income  ...................................    2,446,100       1,362,360
                                                              ------------   -------------
 
NET REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS:
Net realized gain (loss) on investments (note 4)  ..........      429,552            (405)
Net change in unrealized appreciation or depreciation of
  investments  .............................................     (885,612)       (119,634)
                                                              ------------   -------------
 
  Net loss on investments  .................................     (456,060)       (120,039)
                                                              ------------   -------------
 
  Net increase in net assets resulting from operations  ....  $ 1,990,040    $  1,242,321
                                                              ------------   -------------
                                                              ------------   -------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- ---------------------------------------------------------------------
 
           1998 Semiannual Report  7  Minnesota Municipal Term Trusts
<PAGE>
Financial Statements  (continued)
- ---------------------------------------------------------------------
 
STATEMENTS OF CHANGES IN NET ASSETS
 ................................................................................
 
<TABLE>
<CAPTION>
                                                                   MINNESOTA MUNICIPAL
                                                                       TERM TRUST
                                                              -----------------------------
                                                               Six Months
                                                              Ended 6/30/98    Year Ended
                                                               (Unaudited)      12/31/97
                                                              -------------   -------------
<S>                                                           <C>             <C>
OPERATIONS:
Net investment income  .....................................   $  2,446,100   $   5,030,888
Net realized gain on investments  ..........................        429,552         299,913
Net change in unrealized appreciation or depreciation of
  investments  .............................................       (885,612)        127,174
                                                              -------------   -------------
 
  Net increase in net assets resulting from operations  ....      1,990,040       5,457,975
                                                              -------------   -------------
 
DISTRIBUTIONS TO SHAREHOLDERS:
From net investment income:
  Common stock dividends  ..................................     (1,458,975)     (3,501,539)
  Preferred stock dividends  ...............................       (475,145)       (941,311)
From net realized gains:
  Common stock dividends  ..................................             --        (209,817)
  Preferred stock dividends  ...............................             --         (59,328)
                                                              -------------   -------------
  Total distributions  .....................................     (1,934,120)     (4,711,995)
                                                              -------------   -------------
 
    Total increase in net assets  ..........................         55,920         745,980
 
Net assets at beginning of period  .........................     93,452,885      92,706,905
                                                              -------------   -------------
 
Net assets at end of period  ...............................   $ 93,508,805   $  93,452,885
                                                              -------------   -------------
                                                              -------------   -------------
 
Undistributed net investment income  .......................   $  4,653,282   $   4,141,302
                                                              -------------   -------------
                                                              -------------   -------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- ---------------------------------------------------------------------
 
           1998 Semiannual Report  8  Minnesota Municipal Term Trusts
<PAGE>
Financial Statements  (continued)
- ---------------------------------------------------------------------
 
STATEMENTS OF CHANGES IN NET ASSETS
 ................................................................................
 
<TABLE>
<CAPTION>
                                                                   MINNESOTA MUNICIPAL
                                                                      TERM TRUST II
                                                              -----------------------------
                                                               Six Months
                                                              Ended 6/30/98    Year Ended
                                                               (Unaudited)      12/31/97
                                                              -------------   -------------
<S>                                                           <C>             <C>
OPERATIONS:
Net investment income  .....................................   $  1,362,360   $   2,807,704
Net realized gain (loss) on investments  ...................           (405)        265,558
Net change in unrealized appreciation or depreciation of
  investments  .............................................       (119,634)        523,753
                                                              -------------   -------------
 
  Net increase in net assets resulting from operations  ....      1,242,321       3,597,015
                                                              -------------   -------------
 
DISTRIBUTIONS TO SHAREHOLDERS:
From net investment income:
  Common stock dividends  ..................................       (851,160)     (2,042,784)
  Preferred stock dividends  ...............................       (284,787)       (544,844)
From net realized gains:
  Common stock dividends  ..................................             --        (173,000)
  Preferred stock dividends  ...............................             --         (49,704)
                                                              -------------   -------------
  Total distributions  .....................................     (1,135,947)     (2,810,332)
                                                              -------------   -------------
 
    Total increase in net assets  ..........................        106,374         786,683
 
Net assets at beginning of period  .........................     55,187,827      54,401,144
                                                              -------------   -------------
 
Net assets at end of period  ...............................   $ 55,294,201   $  55,187,827
                                                              -------------   -------------
                                                              -------------   -------------
 
Undistributed net investment income  .......................   $  1,873,253   $   1,646,840
                                                              -------------   -------------
                                                              -------------   -------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- ---------------------------------------------------------------------
 
           1998 Semiannual Report  9  Minnesota Municipal Term Trusts
<PAGE>
        Notes to Financial Statements (Unaudited)
- --------------------------------------------------------------------------------
 
(1) ORGANIZATION
 ................................
               Minnesota Municipal Term Trust Inc. (MNA) and Minnesota Municipal
               Term Trust Inc. II (MNB) (the funds) are registered under the
               Investment Company Act of 1940 (as amended) as non-diversified,
               closed-end management investment companies. MNA and MNB expect to
               terminate operations and distribute all of their net assets to
               shareholders on or shortly before April 15, 2002, and April 15,
               2003, respectively; although termination may be extended to a
               date no later than April 15, 2007, and April 15, 2008,
               respectively. The funds invest primarily in high-quality
               Minnesota municipal obligations including municipal zero-coupon
               securities. Shares of Minnesota Municipal Term Trust Inc. are
               listed on the New York Stock Exchange under the symbol MNA;
               shares of Minnesota Municipal Term Trust Inc. II are listed on
               the American Stock Exchange under the symbol MNB.
 
(2) SUMMARY OF
    SIGNIFICANT
    ACCOUNTING
    POLICIES
 ................................
                  INVESTMENTS IN SECURITIES
               Portfolio securities for which market quotations are readily
               available are valued at current market value. If market
               quotations or valuations are not readily available, or if such
               quotations or valuations are believed to be inaccurate,
               unreliable or not reflective of market value, portfolio
               securities are valued according to procedures adopted by the
               funds' board of directors in good faith at "fair value", that is,
               a price that the fund might reasonably expect to receive for the
               security or other asset upon its current sale.
 
               The current market value of certain fixed income securities is
               provided by an independent pricing service. Fixed income
               securities for which prices are not available from an independent
               pricing service but where an active market exists are valued
               using market quotations obtained from one or more dealers that
               make markets in the securities or from a widely-used quotation
               system. Short-term securities with maturities of 60 days or less
               are valued at amortized cost, which approximates market value.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  10  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (Unaudited) (continued)
- --------------------------------------------------------------------------------
 
               Securities transactions are accounted for on the date securities
               are purchased or sold. Realized gains and losses are calculated
               on the identified-cost basis. Interest income, including
               amortization of bond discount and premium, is recorded on an
               accrual basis.
 
               The funds concentrate their investments in Minnesota and,
               therefore, may have more credit risk related to the economic
               conditions of Minnesota than portfolios with a broader
               geographical diversification.
 
                  SECURITIES PURCHASED ON A WHEN-ISSUED BASIS
               Delivery and payment for securities that have been purchased by
               the funds on a when-issued or forward-commitment basis can take
               place a month or more after the transaction date. During this
               period, such securities do not earn interest, are subject to
               market fluctuation and may increase or decrease in value prior to
               their delivery. The funds segregate, with their custodian, assets
               with a market value equal to the amount of their purchase
               commitments. The purchase of securities on a when-issued or
               forward-commitment basis may increase the volatility of the
               funds' net asset value if the funds make such purchases while
               remaining substantially fully invested. As of June 30, 1998,
               Minnesota Municipal Term Trust Inc. and Minnesota Municipal Term
               Trust Inc. II had entered into outstanding when-issued or forward
               commitments of $1,605,838 and $2,001,056 respectively.
 
                  FEDERAL TAXES
               Each fund is treated separately for federal income tax purposes.
               Each fund intends to comply with the requirements of the Internal
               Revenue Code applicable to regulated investment companies and not
               be subject to federal income tax. Therefore, no income tax
               provision is required. The funds also intend to distribute their
               taxable net investment income and realized gains, if any, to
               avoid the payment of any federal excise taxes.
 
               Net investment income and net realized gains and losses may
               differ for financial statement and tax purposes primarily because
               of
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  11  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (Unaudited) (continued)
- --------------------------------------------------------------------------------
               market discount amortization. The character of distributions made
               during the year from net investment income or net realized gains
               may differ from its ultimate characterization for federal income
               tax purposes. In addition, due to the timing of dividend
               distributions, the fiscal year in which amounts are distributed
               may differ from the year that the income or realized gains or
               losses were recorded by the funds.
 
                  DISTRIBUTIONS TO SHAREHOLDERS
               Distributions from net investment income are made monthly for
               common shareholders and weekly for preferred shareholders. Common
               stock distributions are recorded as of the close of business on
               the ex-dividend date and preferred stock dividends are accrued
               daily. Net realized gains distributions, if any, will be made at
               least annually. Distributions are payable in cash or, for common
               shareholders pursuant to the funds' dividend reinvestment plans,
               reinvested in additional shares of the funds' common stock. Under
               the plans, common shares will be purchased in the open market.
 
                  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
               in the financial statements. Actual results could differ from
               these estimates.
 
(3) REMARKETED
    PREFERRED
    STOCK
 ................................
               Minnesota Municipal Term Trust Inc. and Minnesota Municipal Term
               Trust Inc. II have issued and, as of June 30, 1998, have
               outstanding 1,152 shares and 694 shares, respectively, of
               remarketed preferred stock (RP) with a liquidation preference of
               $25,000 per share for each fund. The dividend rate on the RP is
               adjusted every seven days as determined by the remarketing agent.
               On June 30, 1998, Minnesota Municipal Term Trust and Minnesota
               Municipal Term Trust II each had a dividend rate of 3.40%.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  12  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (Unaudited) (continued)
- --------------------------------------------------------------------------------
 
               RP is a registered trademark of Merrill Lynch & Company.
 
(4) INVESTMENT
    SECURITY
    TRANSACTIONS
 ................................
               Cost of purchases and proceeds from sales of securities, other
               than temporary investments in short-term securities, for the six
               months ended June 30, 1998, were as follows:
 
<TABLE>
<CAPTION>
                                          MINNESOTA     MINNESOTA
                                          MUNICIPAL     MUNICIPAL
                                          TERM TRUST  TERM TRUST II
                                          ----------  --------------
<S>                                       <C>         <C>
Purchases ..............................  $5,384,591     $374,391
Proceeds from sales ....................  $5,581,953     $130,000
</TABLE>
 
(5) EXPENSES
 ................................
                  INVESTMENT MANAGEMENT AND ADMINISTRATIVE FEES
               The funds have entered into an investment advisory agreement with
               Piper Capital Management Incorporated. In addition, Piper Capital
               provided services under an administration agreement through April
               30, 1998. Effective May 1, 1998, the fund entered into an
               administration agreement with U.S. Bank, an affiliate of the
               advisor.
 
               The investment advisory agreement provides the advisor with a
               monthly investment management fee in an amount equal to an
               annualized rate of 0.25% of the funds' average weekly net assets
               (computed by subtracting liabilities, which exclude preferred
               stock, from the value of the total assets of the funds). For its
               fee, the advisor provides investment advice and, in general,
               conducts the management and investment activity of the funds.
 
               The administration agreement provides the administrator with a
               monthly fee in an amount equal to an annualized rate of 0.15% of
               the funds' average weekly net assets (computed by subtracting
               liabilities, which exclude preferred stock, from the value of the
               total assets of the funds). For its fee, the administrator will
               provide regulatory reporting and record-keeping services for the
               funds.
 
                  REMARKETING AGENT FEE
               The funds have entered into a remarketing agent agreement with
               Merrill Lynch, Pierce, Fenner & Smith (the remarketing agent).
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  13  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (Unaudited) (continued)
- --------------------------------------------------------------------------------
               The remarketing agreement provides the remarketing agent with a
               monthly fee in an amount equal to an annualized rate of 0.25% of
               the funds' average amount of RP outstanding. For its fee, the
               remarketing agent will remarket shares of RP tendered to it, on
               behalf of shareholders thereof, and will determine the applicable
               dividend rate for each seven-day dividend period.
 
                  OTHER FEES AND EXPENSES
               In addition to the investment management, administrative and the
               remarketing agent fees, the funds are responsible for paying most
               other operating expenses including: outside directors' fees and
               expenses; custodian fees; registration fees; printing and
               shareholder reports; transfer agent fees and expenses; legal,
               auditing and accounting services; insurance; interest; taxes and
               other miscellaneous expenses.
 
               Expenses paid indirectly represent a reduction of custodian fees
               for earnings on miscellaneous cash balances maintained by the
               funds.
 
(6) ADVISOR
    ACQUISITION
 ................................
               On May 1, 1998, Piper Jaffray Companies Inc., the parent company
               of the funds' investment advisor, was acquired by U.S. Bancorp.
 
               U.S. Bancorp is a multi-state bank holding company headquartered
               in Minneapolis, Minnesota with a geographic service area spanning
               17 states. As of March 31, 1998, U.S. Bancorp was the 15th
               largest U.S. commercial bank holding company, with assets of
               nearly $70.9 billion. U.S. Bank National Association ("U.S.
               Bank"), a wholly owned subsidiary of U.S. Bancorp, currently acts
               as the investment advisor to 32 mutual funds (the "First American
               Funds"). As of March 31, 1998, U.S. Bank, acting through its
               First American Asset Management group, managed more than $65.3
               billion in assets, including approximately $23.3 billion in
               assets of the First American Funds.
 
               Under the Investment Company Act of 1940, as amended,
               consummation of the acquisition of Piper Jaffray Companies by
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  14  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (Unaudited) (continued)
- --------------------------------------------------------------------------------
               U.S. Bancorp resulted in the assignment and automatic termination
               of the funds' investment advisory agreement with Piper Capital
               Management Incorporated. The funds have entered into new
               investment advisory agreements with Piper Capital Management,
               which shareholders will vote on at the funds' annual meeting in
               August. Shareholders were also asked to approve new investment
               advisory agreeements with U.S. Bank which, if approved, will
               replace the agreements between the funds and Piper Capital
               Management.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  15  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(7) FINANCIAL
    HIGHLIGHTS
 ................................
               Per-share data for a share of capital stock outstanding
               throughout each period and selected information for each period
               are as follows:
 
MINNESOTA MUNICIPAL TERM TRUST
 
<TABLE>
<CAPTION>
                                           Six months
                                              Ended               Year Ended December 31,
                                             6/30/98      ---------------------------------------
                                           (Unaudited)     1997    1996    1995    1994     1993
                                          -------------   ------  ------  ------  -------  ------
<S>                                       <C>             <C>     <C>     <C>     <C>      <C>
PER-SHARE DATA
Net asset value, common stock, beginning
  of period ............................     $11.28       $11.15  $11.31  $10.06  $ 11.33  $10.15
                                          -------------   ------  ------  ------  -------  ------
Operations:
  Net investment income ................       0.43         0.88    0.87    0.88     0.89    0.87
  Net realized and unrealized gains
    (losses) on investments ............      (0.09)        0.07   (0.25)   1.17    (1.41)   1.04
                                          -------------   ------  ------  ------  -------  ------
    Total from operations ..............       0.34         0.95    0.62    2.05    (0.52)   1.91
                                          -------------   ------  ------  ------  -------  ------
Distributions to shareholders:
  From net investment income
    Paid to common shareholders ........      (0.25)       (0.61)  (0.61)  (0.61)   (0.61)  (0.61)
    Paid to preferred shareholders .....      (0.08)       (0.16)  (0.16)  (0.19)   (0.14)  (0.12)
  From net realized gains
    Paid to common shareholders ........         --        (0.04)  (0.01)     --       --      --
    Paid to preferred shareholders .....         --        (0.01)     --      --       --      --
                                          -------------   ------  ------  ------  -------  ------
    Total distributions to
      shareholders .....................      (0.33)       (0.82)  (0.78)  (0.80)   (0.75)  (0.73)
                                          -------------   ------  ------  ------  -------  ------
Net asset value, common stock, end of
  period ...............................     $11.29       $11.28  $11.15  $11.31  $ 10.06  $11.33
                                          -------------   ------  ------  ------  -------  ------
                                          -------------   ------  ------  ------  -------  ------
Market value, common stock, end of
  period ...............................     $10.88       $11.13  $10.50  $10.63  $  9.25  $11.25
                                          -------------   ------  ------  ------  -------  ------
                                          -------------   ------  ------  ------  -------  ------
SELECTED INFORMATION
Total return, common stock, net asset
  value (a) ............................       2.36%        7.15%   4.23%  18.86%   (6.01)%  17.96%
Total return, common stock, market value
  (b) ..................................       0.51%       12.48%   4.86%  21.91%  (12.73)%  14.50%
Net assets at end of period (in
  millions) ............................     $   94       $   93  $   93  $   94  $    86  $   94
Ratio of expenses to average weekly net
  assets applicable to common stock
  (e) ..................................       1.04%(g)     0.97%   0.99%   0.95%    0.92%   0.92%
Ratio of net investment income to
  average weekly net assets applicable
  to common stock (c)(f) ...............       6.14%(g)     6.37%   6.40%   6.38%    7.06%   6.95%
Portfolio turnover rate (excluding
  short-term securities) ...............          6%           8%      2%      9%       2%      1%
Remarketed preferred stock outstanding
  end of period (in millions) ..........     $   29       $   29  $   29  $   29  $    29  $   29
Asset coverage ratio (d) ...............        325%         324%    322%    325%     300%    325%
</TABLE>
 
(a)  ASSUMES REINVESTMENT OF DISTRIBUTIONS AT NET ASSET VALUE AND DOES NOT
     REFLECT A SALES CHARGE.
(b)  ASSUMES REINVESTMENT OF DISTRIBUTIONS AT ACTUAL PRICES PURSUANT TO THE
     FUND'S REINVESTMENT PLAN.
(c)  RATIO REFLECTS TOTAL NET INVESTMENT INCOME LESS DIVIDENDS PAID TO PREFERRED
     SHAREHOLDERS FROM NET INVESTMENT INCOME DIVIDED BY NET ASSETS APPLICABLE TO
     COMMON SHARES.
(d)  REPRESENTS TOTAL NET ASSETS DIVIDED BY REMARKETED PREFERRED STOCK.
(e)  RATIO OF EXPENSES TO TOTAL AVERAGE WEEKLY NET ASSETS IS 0.72% (ANNUALIZED),
     0.67%, 0.68%, 0.65%, 0.62% AND 0.63% FOR THE SIX MONTHS ENDED JUNE 30,
     1998, FISCAL YEARS 1997, 1996, 1995, 1994 AND 1993, RESPECTIVELY. DIVIDENDS
     PAID TO PREFFERRED SHAREHOLDERS ARE NOT CONSIDERED AN EXPENSE.
(f)  RATIO OF NET INVESTMENT INCOME TO TOTAL AVERAGE WEEKLY NET ASSETS IS 5.28%
     (ANNUALIZED), 5.41%, 5.42%, 5.57%, 5.69% AND 5.49% FOR THE SIX MONTHS ENDED
     JUNE 30, 1998, FISCAL YEARS 1997, 1996, 1995, 1994, AND 1993, RESPECTIVELY.
(g)  ANNUALIZED.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  16  Minnesota Municipal Term Trusts
<PAGE>
           Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(7) FINANCIAL
    HIGHLIGHTS
 ................................
               Per-share data for a share of capital stock outstanding
               throughout each period and selected information for each period
               are as follows:
 
MINNESOTA MUNICIPAL TERM TRUST II
 
<TABLE>
<CAPTION>
                                           Six months
                                              Ended               Year Ended December 31,
                                             6/30/98      ---------------------------------------
                                           (Unaudited)     1997    1996    1995    1994     1993
                                          -------------   ------  ------  ------  -------  ------
<S>                                       <C>             <C>     <C>     <C>     <C>      <C>
PER-SHARE DATA
Net asset value, common stock, beginning
  of period ............................     $10.94       $10.71  $10.89  $ 9.48  $ 10.92  $ 9.76
                                          -------------   ------  ------  ------  -------  ------
Operations:
  Net investment income ................       0.39         0.81    0.82    0.83     0.83    0.82
  Net realized and unrealized gains
    (losses) on investments ............      (0.03)        0.23   (0.24)   1.37    (1.54)   1.05
                                          -------------   ------  ------  ------  -------  ------
    Total from operations ..............       0.36         1.04    0.58    2.20    (0.71)   1.87
                                          -------------   ------  ------  ------  -------  ------
Distributions to shareholders:
  From net investment income
    Paid to common shareholders ........      (0.25)       (0.59)  (0.59)  (0.59)   (0.59)  (0.59)
    Paid to preferred shareholders .....      (0.08)       (0.16)  (0.16)  (0.19)   (0.14)  (0.12)
  From net realized gains
    Paid to common shareholders ........         --        (0.05)  (0.01)  (0.01)      --      --
    Paid to preferred shareholders .....         --        (0.01)     --      --       --      --
                                          -------------   ------  ------  ------  -------  ------
    Total distributions to
      shareholders .....................      (0.33)       (0.81)  (0.76)  (0.79)   (0.73)  (0.71)
                                          -------------   ------  ------  ------  -------  ------
Net asset value, common stock, end of
  period ...............................     $10.97       $10.94  $10.71  $10.89  $  9.48  $10.92
                                          -------------   ------  ------  ------  -------  ------
                                          -------------   ------  ------  ------  -------  ------
Market value, common stock, end of
  period ...............................     $10.75       $10.69  $10.25  $10.38  $  8.63  $11.38
                                          -------------   ------  ------  ------  -------  ------
                                          -------------   ------  ------  ------  -------  ------
SELECTED INFORMATION
Total return, common stock, net asset
  value (a) ............................       2.54%        8.34%   4.04%  21.57%   (7.91)%  18.23%
Total return, common stock, market value
  (b) ..................................       3.38%       10.78%   4.88%  27.63%  (19.55)%  15.65%
Net assets at end of period (in
  millions) ............................     $   55       $   55  $   54  $   55  $    50  $   55
Ratio of expenses to average weekly net
  assets applicable to common stock
  (e) ..................................       1.16%(g)     1.09%   1.07%   1.06%    1.03%   1.03%
Ratio of net investment income to
  average weekly net assets applicable
  to common stock (c)(f) ...............       5.73%(g)     6.06%   6.20%   6.10%    6.78%   6.60%
Portfolio turnover rate (excluding
  short-term securities) ...............          0%          10%      4%      9%       4%      1%
Remarketed preferred stock outstanding
  end of period (in millions) ..........     $   17       $   17  $   17  $   17  $    17  $   17
Asset coverage ratio (d) ...............        319%         318%    314%    317%     289%    318%
</TABLE>
 
(a)  ASSUMES REINVESTMENT OF DISTRIBUTIONS AT NET ASSET VALUE AND DOES NOT
     REFLECT A SALES CHARGE.
(b)  ASSUMES REINVESTMENT OF DISTRIBUTIONS AT ACTUAL PRICES PURSUANT TO THE
     FUND'S REINVESTMENT PLAN.
(c)  RATIO REFLECTS TOTAL NET INVESTMENT INCOME LESS DIVIDENDS PAID TO PREFERRED
     SHAREHOLDERS FROM NET INVESTMENT INCOME DIVIDED BY NET ASSETS APPLICABLE TO
     COMMON SHARES.
(d)  REPRESENTS TOTAL NET ASSETS DIVIDED BY REMARKETED PREFERRED STOCK.
(e)  RATIO OF EXPENSES TO TOTAL AVERAGE WEEKLY NET ASSETS IS 0.80% (ANNUALIZED),
     0.74%, 0.73%, 0.72%, 0.69% AND 0.70% FOR THE SIX MONTHS ENDED JUNE 30,
     1998, FISCAL YEARS 1997, 1996, 1995, 1994 AND 1993, RESPECTIVELY. DIVIDENDS
     PAID TO PREFFERRED SHAREHOLDERS ARE NOT CONSIDERED AN EXPENSE.
(f)  RATIO OF NET INVESTMENT INCOME TO TOTAL AVERAGE WEEKLY NET ASSETS IS 4.97%
     (ANNUALIZED), 5.13%, 5.25%, 5.36%, 5.51% AND 5.25% FOR THE SIX MONTHS ENDED
     JUNE 30, 1998, FISCAL YEARS 1997, 1996, 1995, 1994 AND 1993, RESPECTIVELY.
(g)  ANNUALIZED.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  17  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited)
- ---------------------------------------------------------------------
 
<TABLE>
<CAPTION>
MINNESOTA MUNICIPAL TERM TRUST                                     June 30, 1998
 .......................................................................................
 
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
MUNICIPAL LONG-TERM SECURITIES (97.0%):
  ELECTRIC REVENUE (9.8%):
    Northern Municipal Power (Callable 1/1/99 at 102),
      7.25%, 1/1/16 .....................................  $ 4,850,000      $  5,033,912
    Northern Municipal Power Agency Electric System
      (FSA), 4.70%, 1/1/02 ..............................    1,605,000(e)      1,626,844
    Northern Municipal Power, Zero-Coupon (AMBAC),
      6.39%-6.94%, 1/1/06-1/1/10 ........................    3,340,000(b)      2,033,396
    Western Municipal Power Agency (AMBAC), 4.80%,
      1/1/02 ............................................      465,000           475,369
                                                                            ------------
                                                                               9,169,521
                                                                            ------------
 
  GENERAL OBLIGATIONS (17.6%):
    Delano Independent School District (AMBAC) (Crossover
      refunded to 2/1/01), 7.25%, 2/1/11 ................      300,000(d)        323,616
    Mankato School District (FSA) (Crossover refunded to
      2/1/02), 6.35%, 2/1/13 ............................    1,000,000(d)      1,074,390
    Minneapolis and St. Paul Metropolitan Council
      (Crossover refunded to 9/1/00), 6.75%, 9/1/08 .....    2,990,000(d)      3,164,586
    St. Paul Metropolitan Airport Commission (Callable
      1/1/02 at 100), AMT, 6.60%, 1/1/09 ................    3,150,000(f)      3,373,744
    State General Obligation, 5.00%, 11/1/01 ............      500,000           516,075
    State General Obligation (Prerefunded to 8/1/01),
      6.70%, 8/1/10 .....................................    5,000,000(d)      5,389,550
    State General Obligation, Zero-Coupon, 5.95%,
      8/1/01 ............................................    3,000,000(b)      2,647,620
                                                                            ------------
                                                                              16,489,581
                                                                            ------------
 
  HEALTH SERVICE/HMO (1.2%):
    Minneapolis and St. Paul Minnesota Housing &
      Redevelopment Authority Healthcare Systems (AMBAC),
      4.25%, 11/15/99 ...................................    1,100,000         1,106,578
                                                                            ------------
 
  HOSPITAL REVENUE (23.0%):
    Agricultural and Economic Development Board Health
      Care System, Fairview Hospital (MBIA), 4.90%-5.00%,
      11/15/01-11/15/02 .................................    1,635,000         1,681,896
    Bemidji Hospital Facilities (Prerefunded to 9/1/01),
      7.00%, 9/1/21 .....................................    3,200,000(d)      3,535,264
    Burnsville Hospital System, Zero-Coupon (Escrowed to
      maturity to 5/1/12), 6.76%, 5/1/12 ................    1,000,000(b)        460,920
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  18  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
MINNESOTA MUNICIPAL TERM TRUST
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
    Minneapolis and St. Paul Health One Obligated Group
      (Prerefunded to 8/15/00), 8.00%, 8/15/14 ..........  $ 2,000,000(d)   $  2,201,300
    Minneapolis Health Facility, Fairview (MBIA)
      (Callable 1/1/02 at 102), 6.50%, 1/1/11 ...........      250,000           270,230
    Minneapolis Hospital Facilities-Children's Medical
      Center (Prerefunded to 6/1/01), 7.00%, 12/1/20 ....    2,000,000(d)      2,197,160
    Monticello-Big Lake Minnesota Community Hospital
      District Gross Revenue, 4.00%-4.60%,
      12/1/99-12/1/02 ...................................      525,000           523,306
    St. Louis Park Hospital Facility (AMBAC) (Crossover
      refunded to 7/1/00), 7.25%, 7/1/15 ................    1,300,000(d)      1,402,466
    St. Louis Park Hospital Facility (AMBAC) (Prerefunded
      to 7/1/00), 7.25%, 7/1/15 .........................    5,500,000(d)      5,951,275
    St. Paul Housing & Redevelopment Authority,
      4.50%-4.90%, 11/1/99-11/1/02 ......................    2,755,000         2,778,063
    St. Paul Minnesota Housing & Redeveolpment Authority
      Hospital Revenues, 4.60%, 11/1/00 .................      500,000           502,170
                                                                            ------------
                                                                              21,504,050
                                                                            ------------
 
  HOUSING REVENUE (14.9%):
    Burnsville Oak Leaf Apartments (GNMA) (Callable
      7/1/01 at 103), 7.05%-7.15%, 1/1/12-1/1/25 ........    3,760,000         3,982,652
    City of Coon Rapids (FHA) (Callable 2/1/02 at 102),
      AMT, 6.75%, 8/1/23 ................................    1,300,000(f)      1,367,470
    Minneapolis Housing-Churchill Apartments (Callable
      10/1/01 at 102), 7.05%, 10/1/22 ...................    3,645,000         3,941,958
    St. Paul Housing and Redevelopment Authority
      (Callable 12/1/01 at 102), 6.90%,
      12/1/11-12/1/21 ...................................      449,000           474,265
    State Housing and Finance Agency (Callable 2/1/01 at
      102), 6.95%, 2/1/14 ...............................    3,400,000         3,614,336
    State Housing and Finance Agency (Callable 2/1/02 at
      102), 6.90%, 8/1/12 ...............................      495,000           527,729
                                                                            ------------
                                                                              13,908,410
                                                                            ------------
 
  IDR - SOLID WASTE DISPOSAL (2.4%):
    Anoka County Solid Waste Disposal Revenue (CFC)
      (Callable 6/1/00 at 102), AMT, 6.95%, 12/1/08 .....    2,100,000(f)      2,239,272
                                                                            ------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  19  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
MINNESOTA MUNICIPAL TERM TRUST
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
  LEASING REVENUE (7.7%):
    Hennepin County Certificates of Participation
      (Callable 11/15/01 at 100), 6.70%-6.75%,
      11/15/09-11/15/11 .................................  $ 4,085,000      $  4,428,770
    Hennepin County Minnesota Lease Revenue Certificate
      of Participation, 4.50%, 11/15/02 .................    1,655,000         1,677,889
    Washington County Jail Facility (MBIA) (Prerefunded
      to 2/1/02), 7.00%, 2/1/12 .........................    1,000,000(d)      1,095,860
                                                                            ------------
                                                                               7,202,519
                                                                            ------------
 
  NURSING HOME REVENUE (2.0%):
    Buffalo Minnesota Revenue, 4.30%-4.55%,
      12/1/02-12/1/05 ...................................    1,350,000         1,341,166
    Maplewood Health Care Facilities Revenue (Callable
      11/15/01 at 102), 5.70%, 11/15/02 .................      500,000           523,560
                                                                            ------------
                                                                               1,864,726
                                                                            ------------
 
  OTHER REVENUE (1.0%):
    Minneapolis Community Development Authority (Callable
      12/1/01 at 102), 7.15%-7.35%, 12/1/03-12/1/09 .....      835,000           885,347
                                                                            ------------
 
  PARKING REVENUE (1.1%):
    St. Paul Housing and Finance Authority (Prerefunded
      to 8/1/00), 6.55%, 8/1/12 .........................    1,000,000(d)      1,070,110
                                                                            ------------
 
  SALES TAX REVENUE (4.7%):
    Minneapolis Community Development Authority, Special
      Tax, Zero-Coupon (MBIA), 6.71%-7.01%,
      3/1/07-3/1/09 .....................................    6,685,000(b)      4,401,939
                                                                            ------------
 
  WATER/POLLUTION CONTROL REVENUE (11.6%):
    State Public Facilities Authority (Prerefunded to
      3/1/01), 6.65%-6.70%, 3/1/08-3/1/13 ...............   10,000,000(d)     10,857,950
                                                                            ------------
 
      Total Municipal Long-Term Securities
        (cost: $84,641,527)  ............................                     90,700,003
                                                                            ------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  20  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
MINNESOTA MUNICIPAL TERM TRUST
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
SHORT-TERM SECURITIES (2.8%):
    Bloomington Minnesota Multifamily Revenue, 3.60%,
      12/1/25 ...........................................  $   400,000(c)   $    400,000
    Minnesota State Higher Education Facilities
      Authority, 3.55%, 3/1/24 ..........................    1,400,000(c)      1,400,000
    Repurchase agreement with Goldman Sachs, acquired on
      6/30/98, interest of $136, 6.10%, 7/1/98 ..........      800,000(g)        800,000
                                                                            ------------
 
      Total Short-Term Securities
        (cost: $2,600,000)  .............................                      2,600,000
                                                                            ------------
 
      Total Investments in Securities (h)
        (cost: $87,241,527)  ............................                   $ 93,300,003
                                                                            ------------
                                                                            ------------
</TABLE>
 
NOTES TO INVESTMENTS IN SECURITIES:
(a)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(b)  FOR ZERO-COUPON INVESTMENTS, THE INTEREST RATE SHOWN IS THE EFFECTIVE YIELD
     ON THE DATE OF PURCHASE.
(c)  FLOATING OR VARIABLE RATE OBLIGATION MATURING IN MORE THAN ONE YEAR. THE
     INTEREST RATE, WHICH IS BASED ON SPECIFIC, OR AN INDEX OF, MARKET INTEREST
     RATES, IS SUBJECT TO CHANGE PERIODICALLY AND IS THE EFFECTIVE RATE ON JUNE
     30, 1998. THIS INSTRUMENT MAY ALSO HAVE A DEMAND FEATURE WHICH ALLOWS THE
     RECOVERY OF PRINCIPAL AT ANY TIME, OR AT SPECIFIED INTERVALS NOT EXCEEDING
     ONE YEAR, ON UP TO 30 DAYS' NOTICE. MATURITY DATE SHOWN REPRESENTS FINAL
     MATURITY.
(d)  PREREFUNDED ISSUES ARE BACKED BY U.S. GOVERNMENT OBLIGATIONS. CROSSOVER
     REFUNDED ISSUES ARE BACKED BY THE CREDIT OF THE REFUNDING ISSUER. IN BOTH
     CASES THE BONDS ARE CALLED AND MATURE AT THE CALL DATE INDICATED.
(e)  ON JUNE 30, 1998, THE TOTAL COST OF INVESTMENTS PURCHASED ON A WHEN-ISSUED
     BASIS WAS $1,605,838.
(f)  PORTFOLIO ABBREVIATIONS AND DEFINITIONS:
         AMT - ALTERNATIVE MINIMUM TAX. AS OF JUNE 30, 1998, THE AGGREGATE
          MARKET VALUE OF SECURITIES SUBJECT TO THE ALTERNATIVE MINIMUM TAX WAS
          $6,980,411, WHICH REPRESENTS 7.47% OF NET ASSETS.
(g)  REPURCHASE AGREEMENT WHICH IS COLLATERALIZED BY U.S. GOVERNMENT AGENCY
     SECURITIES. ACCRUED INTEREST SHOWN REPRESENTS INTEREST DUE AT MATURITY OF
     THE REPURCHASE AGREEMENT.
(h)  ALSO APPROXIMATES COST FOR FEDERAL INCOME TAX PURPOSES. THE AGGREGATE GROSS
     UNREALIZED APPRECIATION AND DEPRECIATION OF INVESTMENTS IN SECURITIES BASED
     ON THIS COST WERE AS FOLLOWS:
 
<TABLE>
      <S>                                   <C>
      GROSS UNREALIZED APPRECIATION ......  $  6,065,647
      GROSS UNREALIZED DEPRECIATION ......        (7,171)
                                            ------------
        NET UNREALIZED APPRECIATION  .....  $  6,058,476
                                            ------------
                                            ------------
</TABLE>
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  21  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited)
- ---------------------------------------------------------------------
 
<TABLE>
<CAPTION>
MINNESOTA MUNICIPAL TERM TRUST II                                  June 30, 1998
 .......................................................................................
 
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
MUNICIPAL LONG-TERM SECURITIES (97.6%):
  EDUCATION REVENUE (6.1%):
    Higher Education Facility-Augsburg College (Connie
      Lee) (Callable 1/1/00 at 102), 6.50%, 1/1/11 ......  $ 2,055,000      $  2,154,976
    Higher Education Facility-Macalester College
      (Callable 3/1/02 at 100), 6.30%, 3/1/14 ...........    1,125,000         1,207,530
                                                                            ------------
                                                                               3,362,506
                                                                            ------------
 
  ELECTRIC REVENUE (19.5%):
    Northern Municipal Power (AMBAC) (Callable 1/1/99 at
      100), 6.00%, 1/1/19 ...............................    2,000,000         2,018,920
    Northern Municipal Power (FSA), 4.75%, 1/1/03 .......    2,000,000(f)      2,035,460
    Northern Municipal Power, Zero-Coupon (AMBAC),
      6.50%-6.94%, 1/1/09-1/1/10 ........................    9,690,000(b)      5,687,874
    Western Municipal Power Agency (AMBAC), 4.90%,
      1/1/03 ............................................    1,000,000         1,028,860
                                                                            ------------
                                                                              10,771,114
                                                                            ------------
 
  GENERAL OBLIGATIONS (18.7%):
    Braham Independent School District (AMBAC) (Crossover
      refunded to 2/1/01), 6.25%, 2/1/14 ................      350,000(d)        369,036
    Hopkins Blake School Project Revenue (Callable 9/1/04
      at 100), 6.45%, 9/1/13-9/1/14 .....................      385,000           429,190
    Mankato School District (FSA) (Crossover refunded to
      2/1/02), 6.35%, 2/1/13 ............................    2,300,000(d)      2,471,097
    Metropolitan Council (Crossover refunded to 9/1/00),
      6.75%, 9/1/10-9/1/11 ..............................    2,500,000(d)      2,645,975
    Minneapolis and St. Paul Metropolitan Airport
      Commission (Callable 1/1/02 at 100), AMT, 6.60%,
      1/1/11 ............................................    1,000,000(g)      1,068,690
    St. Paul Independent School District (Prerefunded to
      2/1/01), 6.45%-6.50%, 2/1/09-2/1/10 ...............      875,000(d)        927,524
    State General Obligation, 5.00%, 8/1/03 .............    1,800,000         1,872,792
    Willmar Independent School District (AMBAC) (Callable
      2/1/02 at 100), 6.25%, 2/1/15 .....................      500,000           535,545
                                                                            ------------
                                                                              10,319,849
                                                                            ------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  22  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
MINNESOTA MUNICIPAL TERM TRUST II
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
  HOSPITAL REVENUE (12.3%):
    Agricultural and Economic Development Board Health
      Care System, Fairview Hospital (MBIA), 5.00%,
      11/15/03 ..........................................  $   695,000      $    719,777
    Duluth Health Care Facilities, Benedictine-St. Mary's
      Project (Prerefunded to 2/15/00), 8.38%,
      2/15/20 ...........................................    2,000,000(d)      2,178,020
    Duluth Hospital Facility, St. Lukes (Connie Lee)
      (Callable 5/1/02 at 102), 6.40%, 5/1/10 ...........      300,000           325,356
    Minneapolis and St. Paul Health Care Facilities
      (MBIA) (Callable 8/15/00 at 102), 6.75%,
      8/15/14 ...........................................    2,500,000         2,668,100
    Red Wing Health Care Facility (Callable 9/1/03 at
      102), 6.40%, 9/1/12 ...............................      220,000           235,913
    St. Paul Housing & Redevelopment Authority Hospital
      Revenues, 5.00%, 11/1/03 ..........................      670,000           679,032
                                                                            ------------
                                                                               6,806,198
                                                                            ------------
 
  HOUSING REVENUE (16.2%):
    Bloomington Minnesota Multifamily Revenue (AMT),
      6.50%, 1/1/26 .....................................      375,000(g)        394,852
    City of Moorhead - Phoenix Project (Callable 6/1/02
      at 101), AMT, 6.35%-7.00%, 6/1/03-6/1/20 ..........    1,260,000(g)      1,305,996
    Olmsted County Housing Redevelopment Authority
      (Callable 2/1/02 at 100), 6.10%, 2/1/13 ...........    1,000,000         1,047,340
    St. Paul Housing and Redevelopment Authority
      (Callable 12/1/01 at 102), 6.90%, 12/1/11 .........        9,000             9,170
    State Housing and Finance Agency, 4.85%-5.05%,
      7/1/02-7/1/04 .....................................    1,440,000         1,479,737
    State Housing and Finance Agency (Callable 2/1/01 at
      102), 6.85%, 2/1/07 ...............................    2,945,000         3,147,351
    State Housing and Finance Agency (Callable 7/1/02 at
      102), AMT, 6.75%-6.85%, 7/1/12-1/1/24 .............    1,475,000(g)      1,561,081
                                                                            ------------
                                                                               8,945,527
                                                                            ------------
 
  IDR - MISCELLANEOUS PROJECTS (6.7%):
    Duluth Seaway Port Authority, Cargill Inc. Project
      (Callable 5/1/02 at 102), 6.80%, 5/1/12 ...........    2,090,000(e)      2,300,881
    East Grand Forks, Pollution Control (Callable 4/1/01
      at 102), 7.75%, 4/1/18 ............................    1,300,000         1,410,019
                                                                            ------------
                                                                               3,710,900
                                                                            ------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  23  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
MINNESOTA MUNICIPAL TERM TRUST II
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
  NURSING HOME REVENUE (1.2%):
    Maplewood Healthcare Facility (Callable 11/15/01 at
      102), 5.80%, 11/15/03 .............................  $   500,000      $    527,105
    Monticello-Big Lake Minnesota Community Hospital
      District Gross Revenue, 4.70%, 12/1/03 ............      125,000           124,817
                                                                            ------------
                                                                                 651,922
                                                                            ------------
 
  OTHER REVENUE (0.2%):
    Moorhead Minnesota Gross Revenue, 5.00%, 12/1/02 ....      125,000           125,782
                                                                            ------------
 
  PARKING REVENUE (4.7%):
    St. Paul Housing and Finance Authority (Prerefunded
      to 8/1/00), 6.55%, 8/1/12 .........................    2,415,000(d)      2,584,316
                                                                            ------------
 
  SPECIAL TAX ASSESSMENT REVENUE (2.7%):
    Minneapolis Community Development, Special Tax
      Assessment (Callable 12/1/01 at 102), 7.10%-7.40%,
      12/1/02-12/1/21 ...................................    1,425,000         1,508,438
                                                                            ------------
 
  WATER/POLLUTION CONTROL REVENUE (9.3%):
    State Public Facilities Authority (Callable 3/1/02 at
      102), 6.50%, 3/1/14 ...............................    4,695,000         5,158,725
                                                                            ------------
 
      Total Municipal Long-Term Securities
        (cost: $50,242,991)  ............................                     53,945,277
                                                                            ------------
 
SHORT-TERM SECURITIES (4.1%):
    Bloomington Minnesota Multifamily Revenue, 3.60%,
      12/1/25 ...........................................    1,400,000(c)      1,400,000
    State Higher Education Facilities Authority, 3.55%,
      3/1/24 ............................................      900,000(c)        900,000
                                                                            ------------
 
      Total Short-Term Securities
        (cost: $2,300,000)  .............................                      2,300,000
                                                                            ------------
 
      Total Investments in Securities (h)
        (cost: $52,542,991)  ............................                   $ 56,245,277
                                                                            ------------
                                                                            ------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  24  Minnesota Municipal Term Trusts
<PAGE>
Investments in Securities (Unaudited) (continued)
- ---------------------------------------------------------------------
 
NOTES TO INVESTMENTS IN SECURITIES:
(a)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(b)  FOR ZERO-COUPON INVESTMENTS, THE INTEREST RATE SHOWN IS THE EFFECTIVE YIELD
     ON THE DATE OF PURCHASE.
(c)  FLOATING OR VARIABLE RATE OBLIGATION MATURING IN MORE THAN ONE YEAR. THE
     INTEREST RATE, WHICH IS BASED ON SPECIFIC, OR AN INDEX OF, MARKET INTEREST
     RATES, IS SUBJECT TO CHANGE PERIODICALLY AND IS THE EFFECTIVE RATE ON JUNE
     30, 1998. THIS INSTRUMENT MAY ALSO HAVE A DEMAND FEATURE WHICH ALLOWS THE
     RECOVERY OF PRINCIPAL AT ANY TIME, OR AT SPECIFIED INTERVALS NOT EXCEEDING
     ONE YEAR, ON UP TO 30 DAYS' NOTICE. MATURITY DATE SHOWN REPRESENTS FINAL
     MATURITY.
(d)  PREREFUNDED ISSUES ARE BACKED BY U.S. GOVERNMENT OBLIGATIONS. CROSSOVER
     REFUNDED ISSUES ARE BACKED BY THE CREDIT OF THE REFUNDING ISSUER. IN BOTH
     CASES THE BONDS ARE CALLED AND MATURE AT THE CALL DATE INDICATED.
(e)  SECURITIES PURCHASED AS PART OF A PRIVATE PLACEMENT WHICH HAVE NOT BEEN
     REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION UNDER THE SECURITIES
     ACT OF 1933 AND ARE CONSIDERED TO BE ILLIQUID. ON JUNE 30, 1998, THE TOTAL
     MARKET VALUE OF THESE INVESTMENTS WAS $2,300,881 OR 4.16% OF TOTAL NET
     ASSETS.
(f)  ON JUNE 30, 1998, THE TOTAL COST OF INVESTMENTS PURCHASED ON A WHEN-ISSUED
     BASIS WAS $2,001,056.
(g)  AMT - ALTERNATIVE MINIMUM TAX. AS OF JUNE 30, 1998, THE AGGREGATE MARKET
     VALUE OF SECURITIES SUBJECT TO THE ALTERNATIVE MINIMUM TAX WAS $4,330,619,
     WHICH REPRESENTS 7.83% OF NET ASSETS.
(h)  ALSO APPROXIMATES COST FOR FEDERAL INCOME TAX PURPOSES. THE AGGREGATE GROSS
     UNREALIZED APPRECIATION AND DEPRECIATION OF INVESTMENTS IN SECURITIES BASED
     ON THIS COST WERE AS FOLLOWS:
 
<TABLE>
      <S>                                   <C>
      GROSS UNREALIZED APPRECIATION ......  $  3,702,469
      GROSS UNREALIZED DEPRECIATION ......          (183)
                                            ------------
        NET UNREALIZED APPRECIATION  .....  $  3,702,286
                                            ------------
                                            ------------
</TABLE>
 
- ---------------------------------------------------------------------
 
          1998 Semiannual Report  25  Minnesota Municipal Term Trusts
<PAGE>

GLOSSARY OF TERMS ***
- --------------------------------------------------------------------------------

ADVANCE REFUNDING
The sale of new bonds (a refunding issue) in advance, usually by some years, of
the first call date of the old bonds (issue to be refunded). The refunding issue
would normally have a lower rate than the issue to be refunded and the proceeds
from the sale of the refunding issue would be invested, usually in government
securities, until the higher-rate bonds become callable.

COUPON
The interest rate on a bond that the issuer promises to pay to the holder until
the bond matures or resets its rate. It is expressed as an annual percentage of
face value.

CREDIT RISK
The risk that a bond issuer will not make timely principal and interest payments
and a loss to the investor will result.

DISCOUNT
Closed-end fund shares may trade in the market at prices that are equal to,
above or below their net asset value (NAV). When investors purchase or sell
shares at a price that is below current NAV, the shares are said to be trading
at a discount.

INTEREST RATE RISK
The risk that after an investor purchases a bond, interest rates will rise and
the price of the bond will go down.

NET ASSET VALUE
Net asset value (or NAV) is the value of the fund's assets less its liabilities
and preferred stock divided by the number of common shares outstanding.


*** - This symbol represents a graduation cap, used throughout this report to 
indicate terms defined in the glossary.

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

            1998 Semiannual Report   26   Minnesota Municipal Term Trusts

<PAGE>

GLOSSARY OF TERMS (CONTINUED)
- --------------------------------------------------------------------------------

PREFERRED STOCK
The preferred stock issued by MNA and MNB pays dividends at a specified rate and
has preference over common stock in the payments of dividends and the
liquidation of assets. Rates paid on preferred stock are reset every seven days
and are based on short-term, tax-exempt interest rates. Preferred shareholders
accept these short-term rates in exchange for low credit risk (shares of
preferred stock are rated AAA by Moody's and S&P) and high liquidity (shares of
preferred stock trade at par and are remarketed every seven days). The proceeds
from the sale of preferred stock are invested at intermediate- and long-term
tax-exempt rates. Because these intermediate- and long-term rates are normally
higher than the short-term rates paid on preferred stock, common shareholders
benefit by receiving higher dividends and/or an increase to the dividend
reserve. However, the risk of having preferred stock is that if short-term rates
rise higher than intermediate- and long-term rates, creating an inverted yield
curve, common shareholders may receive a lower rate of return than if their fund
did not have any preferred stock outstanding. This type of economic environment
is unusual and historically has been short term in nature. Investors should also
be aware that the issuance of preferred stock results in the leveraging of
common stock, which increases the volatility of both the net asset value of the
fund and the market value of shares of common stock.

REFUNDING DATE
The specific date when a bond is redeemed before maturity.

REALIZED GAINS
Profits earned by a fund from the sale of a security at a market price that is
higher than its cost basis.

UNREALIZED APPRECIATION
A bond is said to be trading at unrealized gains when its current market price
is higher than its cost basis.

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

             1998 Semiannual Report  27   Minnesota Municipal Term Trusts
<PAGE>


                      THIS PAGE WAS INTENTIONALLY LEFT BLANK.












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

            1998 Semiannual Report   28   Minnesota Municipal Term Trusts

<PAGE>


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