AMERICAN GOVERNMENT INCOME PORTFOLIO INC
N-30D, 1996-07-12
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<PAGE>

    AMERICAN 
   GOVERNMENT
     INCOME
    PORTFOLIO
     *  *  *
   SEMIANNUAL
     REPORT
      1996


<PAGE>

                            TABLE OF CONTENTS


AVERAGE ANNUALIZED TOTAL RETURNS ..................  1
LETTER TO SHAREHOLDERS ............................  2
FINANCIAL STATEMENTS AND NOTES .................... 10
INVESTMENTS IN SECURITIES ......................... 22



AMERICAN GOVERNMENT INCOME PORTFOLIO
This fund seeks to obtain high current income consistent with preservation of 
capital. In seeking to realize its objective, the fund invests principally in 
obligations of the U.S. government, its agencies and instrumentalities, 
including mortgage-backed derivative securities. The fund may purchase 
securities through the dollar-roll program. Investments in certain 
mortgage-backed derivative securities and the purchase of securities through 
the dollar-roll program may cause the fund's net asset value to fluctuate to 
a greater extent than would be expected from interest rate movements alone. 
As with other mutual funds, there can be no assurance the fund will achieve 
its objective. Since its inception on Sept. 29, 1988, the fund has been rated 
AAf by Standard & Poor's Corporation (S&P).* Fund shares trade on the New 
York Stock Exchange under the symbol AAF.

*THE FUND IS RATED AAf, WHICH MEANS INVESTMENTS IN THE FUND HAVE AN OVERALL
CREDIT QUALITY OF AA. CREDIT QUALITIES ARE ASSESSED BY STANDARD & POOR'S MUTUAL
FUNDS RATING GROUP. S&P DOES NOT EVALUATE THE MARKET RISK OF AN INVESTMENT WHEN
ASSIGNING A CREDIT RATING. SEE STANDARD & POOR'S CORPORATE AND MUNICIPAL RATING
DEFINITIONS FOR AN EXPLANATION OF AA.

THE FUND HAS ALSO BEEN GIVEN A MARKET RISK RATING BY S&P, WHICH WE CANNOT 
PUBLISH DUE TO NASD REGULATIONS. RISK RATINGS EVALUATE VARIOUS INVESTMENT 
RISKS THAT CAN AFFECT THE PERFORMANCE OF A BOND FUND AND INDICATE THE FUND'S 
OVERALL STABILITY AND SENSITIVITY TO CHANGING MARKET CONDITIONS. THESE 
RATINGS ARE AVAILABLE BY CALLING S&P AT 1-800-424-FUND.


CALL FOR MORE INFORMATION
If you would like to be put on our mailing list to receive quarterly fund 
summaries for American Government Income Portfolio (NYSE symbol: AAF), call 
our Mutual Fund Services Department at 1 800 866-7778. In addition, beginning 
in August, you can call that same number and listen to portfolio manager 
commentaries for the fund which will be updated monthly.


<PAGE>


                      AVERAGE ANNUALIZED TOTAL RETURNS

PERIODS ENDED APRIL 30, 1996


[GRAPH]

AMERICAN GOVERNMENT INCOME PORTFOLIO'S AVERAGE ANNUALIZED TOTAL RETURN 
FIGURES ARE BASED ON THE CHANGE IN ITS NET ASSET VALUE (NAV), ASSUME ALL 
DISTRIBUTIONS WERE REINVESTED AND DO NOT REFLECT SALES CHARGES. NAV-BASED 
PERFORMANCE IS USED TO MEASURE INVESTMENT MANAGEMENT RESULTS.

AVERAGE ANNUALIZED TOTAL RETURNS BASED ON THE CHANGE IN MARKET PRICE FOR THE 
ONE-YEAR, FIVE-YEAR AND SINCE INCEPTION PERIODS ENDED APRIL 30, 1996, WERE 
7.02%, 3.66% AND 6.09%, RESPECTIVELY. THESE FIGURES ALSO ASSUME DISTRIBUTIONS 
WERE REINVESTED AND DO NOT REFLECT SALES CHARGES.

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.

* DURING THE SIX-MONTH PERIOD, THE FUND'S BENCHMARK WAS CHANGED FROM THE 
SALOMON BROTHERS MORTGAGE INDEX TO THE LEHMAN BROTHERS U.S. MORTGAGE INDEX. 
ALTHOUGH THE COMPOSITIONS AND EFFECTIVE DURATIONS OF THESE TWO INDEXES ARE 
SIMILAR, PIPER CAPITAL IS MOVING TOWARD USING LEHMAN INDEXES FOR FUND 
COMPARISONS WHENEVER POSSIBLE BECAUSE INFORMATION REGARDING LEHMAN INDEXES IS 
MORE READILY AVAILABLE.

THE LEHMAN BROTHERS U.S. MORTGAGE INDEX IS AN UNMANAGED INDEX THAT REPRESENTS 
THE TOTAL RETURN, WITH DISTRIBUTIONS REINVESTED, OF U.S. GOVERNMENT AGENCY 
MORTGAGE-BACKED SECURITIES WITH UP TO 30 YEARS TO MATURITY. THE SINCE 
INCEPTION NUMBER FOR THE LEHMAN INDEX IS CALCULATED FROM THE MONTH END 
CLOSEST TO THE FUND'S INCEPTION THROUGH APRIL 30, 1996. 

                                      1

<PAGE>


                    AMERICAN GOVERNMENT INCOME PORTFOLIO


[PHOTO]

WILLIAM H. ELLIS
PRESIDENT, PIPER CAPITAL MANAGEMENT



June 26, 1996

Dear Shareholders:

On June 21, 1996, Piper Jaffray Companies announced it had reached an 
agreement in principle to settle purported class action litigation brought on 
behalf of shareholders of American Government Income Portfolio and seven 
other Piper Capital closed-end funds. The settlement, if approved by the 
court, would result in payment to the fund's investors by Piper Jaffray 
Companies and Piper Capital Management of $15.5 million, less attorney's 
fees, over a four-year schedule. Investors who acquired shares during the 
putative class period (May 25, 1988, through May 1, 1995) would be eligible 
to submit claims to recover losses regardless of whether they are current 
shareholders in the funds. 

Under the agreement in principle, American Government Income Portfolio would 
also offer to repurchase up to 25% of its outstanding shares from current 
shareholders at net asset value. The repurchase offer would be made as soon 
as possible after the effective date of the settlement, which follows final 
court approval. This could take many months. The repurchase offer was 
considered carefully by the fund's board of directors and was approved 
because they considered it to be in shareholders' best interest. Existing 
shareholders, many of whom we believe are putative class members, would have 
an opportunity to sell shares and receive net asset value for their shares. 
Currently, the fund is trading at a significant discount to net asset value. 
Shares that are repurchased by the fund would be retired, reducing the number 
of fund shares outstanding. In the event that holders of more than 25% of 
shares subscribe to the offer, the fund may only be able to accept a prorated 
portion of shares tendered for repurchase. 


                                      2

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                     AMERICAN GOVERNMENT INCOME PORTFOLIO




PREMIUM VS. DISCOUNT
The underlying value of a fund's securities and other assets, minus its 
liabilities, is the fund's "net asset value." Closed-end funds may trade in 
the market at a price that is equal to, above, or below this net asset value. 
Shares are trading at a "premium" when investors purchase or sell shares in 
the market at a price that is greater than the shares' net asset value. 
Conversely, when investors purchase or sell shares in the market at a price 
that is lower than the shares' net asset value, they are said to be trading 
at a "discount."



Additionally, if the discount between net asset value and market price of this
fund does not decrease to 5% or less within approximately two years after the
effective date of the settlement, the fund's board would submit a proposal to
shareholders to convert this fund to an open-end format, unless the board
determines at that time that it would not be in fund shareholders' best interest
to do so. Until January 1995, American Government Income Portfolio shares
generally traded at a premium to net asset value, benefiting shareholders.
Closed-end bond funds are now trading at historical lows relative to their net
asset values. Although we believe it is preferable to continue to offer the fund
as a closed-end investment company, if the discount hasn't narrowed to 5% or
less in approximately two years after the effective date of the settlement, then
we currently believe converting the fund to an open-end format will be the best
way to eliminate the market discount. 

We expect that the settlement agreement will be presented to the court for 
preliminary approval this fall. If preliminary court approval is given, 
notices of the settlement will be mailed to all known putative class members. 
Legal notices also will be published in major newspapers at approximately the 
same time. The next step is for final court approval to be given and an 
effective date to be established.

Putative class members can expect to learn more about the settlement proposal 
via mail and/or newspaper advertising in late 1996 or early 1997 or by 
contacting Steve Berman, Hagens & Berman, counsel for the plaintiffs, at
206 623-7292.


                                      3

<PAGE>

                    AMERICAN GOVERNMENT INCOME PORTFOLIO

We believe this settlement is a timely and reasonable resolution to this 
issue that will benefit shareholders. We also believe changes to the fund's 
dividend and additions to the management team outlined below are positive 
moves for the fund.  

Since we last reported to you, the fund's Dividend Committee reduced the 
monthly dividend twice from 8 cents per share to 3.5 cents per share. These 
reductions were part of Piper Capital's effort to bring the fund's dividends 
in line with its earnings. Because the fund's regular and special dividends 
exceeded earnings by 28 cents per share during the six-month period, it was 
necessary to rely on the fund's dividend reserve to pay these dividends, 
which reduced the fund's net asset value by that same amount. As of June 26, 
1996, the dividend reserve for this fund has been eliminated. 

In March, Bruce Salvog and Tom McGlinch joined the management team for the 
fund. Bruce is director of taxable fixed income at Piper Capital with 26 
years of financial experience. Prior to joining Piper Capital in 1992, Bruce 
was a portfolio manager at Kennedy Associates, Inc. Tom, a Chartered 
Financial Analyst, is a senior vice president at Piper Capital with 15 years 
of financial experience. Before joining Piper Capital in 1992, Tom was a 
mortgage-backed securities trader at Piper Jaffray Inc. Prior to that, he was 
a specialty products trader at FBS Investment Services, Inc. 


                                     4


<PAGE>

                     AMERICAN GOVERNMENT INCOME PORTFOLIO

I'd like to congratulate Marijo Goldstein, who previously assisted with the 
management of the fund since its inception in 1988, on her new position as 
director of taxable fixed income research for Piper Capital Management. 
Marijo will no longer be involved with the management of the fund as she 
concentrates on her new duties. 

Thank you for your investment in the fund. We remain committed to providing 
you with quality service and look forward to helping you achieve your 
financial goals. 

Sincerely,

/s/ William H. Ellis

William H. Ellis
President, Piper Capital Management


                                         5



<PAGE>

                      AMERICAN GOVERNMENT INCOME PORTFOLIO

[PHOTO]

[PHOTO]

[PHOTO]


WORTH BRUNTJEN, (TOP)
SHARES PRIMARY RESPONSIBILITY FOR THE MANAGEMENT OF AMERICAN GOVERNMENT INCOME
PORTFOLIO. HE HAS 29 YEARS OF FINANCIAL EXPERIENCE.

BRUCE SALVOG, (MIDDLE)
SHARES PRIMARY RESPONSIBILITY FOR THE MANAGEMENT OF AMERICAN GOVERNMENT INCOME
PORTFOLIO. HE HAS 26 YEARS OF FINANCIAL EXPERIENCE.

TOM MCGLINCH, (BOTTOM)
SHARES PRIMARY RESPONSIBILITY FOR THE MANAGEMENT OF AMERICAN GOVERNMENT INCOME
PORTFOLIO. HE HAS 15 YEARS OF INVESTMENT EXPERIENCE.


Dear Shareholders:


FOR THE SIX-MONTH PERIOD ENDED APRIL 30, 1996, AMERICAN GOVERNMENT INCOME 
PORTFOLIO PRODUCED A NET ASSET VALUE TOTAL RETURN OF 2.07%.* The fund 
outperformed the Lehman Brothers U.S. Mortgage Index, which increased 1.66% 
during the same time frame. Our decision to reduce the effective duration of 
the portfolio in late 1995, before interest rates began to rise sharply, 
helped our investment results. Then in late March when rates began to 
stabilize, we also benefited from extending the portfolio's effective 
duration to equal that of the Lehman Brothers U.S. Mortgage Index. As of 
April 30, the fund's effective duration was 4.3 years. (See page 7 for more 
information about effective duration.) Although the fund outperformed based 
on its net asset value return, its six-month total return based on market 
price was -11.43%.* We are disappointed that the fund continues to trade at a 
discount to its net asset value. However, we hope the repurchase proposal 
outlined in William Ellis' letter will help improve the fund's market price 
over time.  

DURING THE PAST SIX-MONTH PERIOD, THE BOND MARKET FIRST EXPERIENCED A STRONG 
QUARTER, FOLLOWED BY ITS THIRD WORST QUARTER SINCE INTEREST RATES PEAKED IN 
1981. The period began with concerns of a slowdown in economic activity that 
caused interest rates to fall and bond prices to 



* ALL RETURNS ABOVE INCLUDE REINVESTED DISTRIBUTIONS BUT NOT SALES CHARGES. 
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.


                                         6

<PAGE>

                       AMERICAN GOVERNMENT INCOME PORTFOLIO


EFFECTIVE DURATION

Effective duration estimates the interest rate risk of a security, in other 
words how much the value of the security is expected to change with a given 
change in interest rates. The longer a security's effective duration, the 
more sensitive its price is to changes in interest rates. For example, if 
interest rates were to increase by 1%, the market value of a bond with an 
effective duration of five years would decrease by about 5%, with all other 
factors being constant.

It is important to understand that, while a valuable measure, effective 
duration is based upon certain assumptions and has several limitations. It is 
most effective as a measure of interest rate risk when interest rate changes 
are small, rapid and occur equally across all the different points of the 
yield curve. 

In addition, effective duration is difficult to calculate precisely for bonds 
with prepayment options, such as mortgage-backed securities, because the 
calculation requires assumptions about prepayment rates. For example, when 
interest rates go down, homeowners may prepay their mortgages at a higher 
rate than assumed in the initial effective duration calculation, thereby 
shortening the effective duration of the fund's mortgage-backed securities. 
Conversely, if rates increase, prepayments may decrease to a greater extent 
than assumed, extending the effective duration of such securities. For these 
reasons, the effective durations of funds that invest a significant portion 
of their assets in mortgage-backed securities can be greatly affected by 
changes in interest rates.



increase. But early in 1996, the economy showed signs of picking up and interest
rates began to inch higher. On March 8, the government released February
employment data that showed a surprisingly strong increase in new jobs. Interest
rates rose and bond prices fell sharply, ending the bond market rally. 

IN THIS ENVIRONMENT, WE SOLD THE FUND'S REMAINING INVERSE INTEREST-ONLY 
SECURITIES AS WELL AS MOST OF ITS INVERSE FLOATING RATE SECURITIES. These 
sales contributed to the fund's reduced net asset value volatility during a 
very volatile period in the bond market. Proceeds from the sale of these 
securities were invested in U.S. agency fixed rate mortgage-backed 
securities. Over the past year, we have sold the majority of the fund's 
interest-only, principal-only, inverse interest-only and inverse floating 
rate securities in an attempt to provide more consistent returns and lower 
volatility than in the past. We may invest in these securities to a limited 
extent in the future if market conditions dictate.

THE FUND'S EMPHASIS ON U.S. AGENCY MORTGAGE-BACKED SECURITIES HELPED 
PERFORMANCE. The mortgage sector outperformed Treasury securities during the 
first three months of 1996. The fund's investments in U.S. agency 
mortgage-backed securities included securities issued by the Government 
National Mortgage Association (GNMA), the Federal National 


                                        7

<PAGE>

                      AMERICAN GOVERNMENT INCOME PORTFOLIO


PORTFOLIO COMPOSITION 
APRIL 30, 1996


[GRAPH]



Mortgage Association (FNMA) and the Federal Home Loan Mortgage Corporation 
(FHLMC). The rest of the portfolio was invested primarily in U.S. Treasuries. 

AFTER RATES ROSE DURING THE PERIOD, WE INCREASED THE EFFECTIVE DURATION OF 
THE FUND. We have also begun borrowing in the form of reverse repurchase 
agreements (8% of total assets as of May 31). In addition, we have 
selectively added dollar-roll transactions (5% of total assets as of May 31). 
Both of these techniques may enhance the fund's income, but may also increase 
its net asset value volatility.  

LOOKING AHEAD, WE ARE ANTICIPATING A MODERATE RATE OF ECONOMIC GROWTH. Our 
estimates for Gross Domestic Product growth (economic growth) for 1996 are 
between 1.5% and 2.5%. We believe inflation will remain benign. Our estimate 
for the Consumer Price Index (the key inflation rate) in 1996 is between 2.5% 
and 3.5%. Given these projections, we expect the Federal Reserve to assume a 
neutral monetary policy near-term, meaning we don't expect the Fed to raise 
or lower short-term interest rates. We believe this subdued environment 
should 


                                      8

<PAGE>

                    AMERICAN GOVERNMENT INCOME PORTFOLIO

benefit the fixed income market. We remain optimistic about the mortgage 
securities market and will view market weakness as an opportunity to add to 
select holdings at attractive prices when possible. 

As always, we appreciate your investment in American Government Income 
Portfolio.

Sincerely,

/s/ Worth Bruntjen

Worth Bruntjen
Portfolio Manager


/s/ Bruce Salvog

Bruce Salvog
Portfolio Manager


/s/ Tom McGlinch

Tom McGlinch
Portfolio Manager


                                          9
<PAGE>
- --------------------------------------------------------------------------------
                        FINANCIAL STATEMENTS (Unaudited)
 
STATEMENT OF ASSETS AND LIABILITIES
APRIL 30, 1996
 
<TABLE>
<S>                                                           <C>
ASSETS:
  Investments in securities at market value* (note 2)
    (including a repurchase agreement of $1,063,000) ..... $    177,805,727
  Cash in bank on demand deposit ...........................         50,333
  Other assets .............................................         20,104
  Mortgage security paydowns receivable ....................         14,345
  Accrued interest receivable ..............................      1,439,671
                                                              ----------------
      Total assets .........................................    179,330,180
                                                              ----------------
 
LIABILITIES:
  Reverse repurchase agreements payable ....................     14,500,000
  Accrued investment management fee ........................         68,027
  Accrued administrative fee ...............................         27,051
  Accrued interest .........................................         22,533
  Other accrued expenses ...................................         38,436
                                                              ----------------
      Total liabilities ....................................     14,656,047
                                                              ----------------
Net assets applicable to outstanding capital stock ....... $    164,674,133
                                                              ----------------
                                                              ----------------
 
REPRESENTED BY:
  Capital stock - authorized 1 billion shares of $0.01 par
    value; outstanding, 24,469,677 shares ................ $        244,697
  Additional paid-in capital ...............................    225,396,482
  Undistributed net investment income ......................      2,600,773
  Accumulated net realized loss on investments .............    (60,647,150)
  Unrealized depreciation of investments ...................     (2,920,669)
                                                              ----------------
      Total - representing net assets applicable to
        outstanding capital stock ........................ $    164,674,133
                                                              ----------------
                                                              ----------------
 
Net asset value per share of outstanding capital stock ... $           6.73
                                                              ----------------
                                                              ----------------
 
* Investments in securities at identified cost ........... $    180,726,396
                                                              ----------------
                                                              ----------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
                                       10
<PAGE>
- --------------------------------------------------------------------------------
                        FINANCIAL STATEMENTS (UNAUDITED)
 
STATEMENT OF OPERATIONS
FOR THE SIX MONTHS ENDED APRIL 30, 1996
 
<TABLE>
<S>                                                           <C>
INCOME:
  Interest (net of interest expense of $22,533) .......... $      6,149,890
                                                              ----------------
 
EXPENSES (NOTE 3):
  Investment management fee ................................        490,868
  Administrative fee .......................................        167,998
  Custodian, accounting and transfer agent fees ............         98,023
  Reports to shareholders ..................................         24,008
  Directors' fees ..........................................          5,650
  Audit and legal fees .....................................         27,006
  Federal excise taxes (note 2) ............................        105,449
  Other expenses ...........................................         23,247
                                                              ----------------
      Total expenses .......................................        942,249
  Less expenses paid indirectly ............................           (410)
                                                              ----------------
      Total net expenses ...................................        941,839
                                                              ----------------
 
      Net investment income ................................      5,208,051
                                                              ----------------
 
NET REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS:
  Net realized loss on investments (note 4) ................     (4,058,951)
  Net change in unrealized appreciation or depreciation of
    investments ............................................      2,387,670
                                                              ----------------
    Net loss on investments ................................     (1,671,281)
                                                              ----------------
 
      Net increase in net assets resulting from
        operations ....................................... $      3,536,770
                                                              ----------------
                                                              ----------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
                                       11
<PAGE>
- --------------------------------------------------------------------------------
                        FINANCIAL STATEMENTS (UNAUDITED)
 
STATEMENT OF CASH FLOWS
FOR THE SIX MONTHS ENDED APRIL 30, 1996
 
<TABLE>
<S>                                                           <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Interest income ........................................ $      6,149,890
  Net expenses .............................................       (941,839)
                                                              ----------------
      Net investment income ................................      5,208,051
                                                              ----------------
Adjustments to reconcile net investment income to net cash
  provided by operating activities:
    Change in accrued interest and mortgage security
      paydowns receivable ..................................         57,049
    Net amortization of bond discount and premium ..........        306,917
    Change in accrued fees and expenses ....................         18,008
                                                              ----------------
      Total adjustments ....................................        381,974
                                                              ----------------
 
      Net cash provided by operating activities ............      5,590,025
                                                              ----------------
 
CASH FLOWS FROM INVESTING ACTIVITIES:
  Proceeds from sales of investments .......................    127,982,526
  Purchases of investments .................................   (135,980,991)
  Net sales of short-term securities .......................        496,000
                                                              ----------------
      Net cash used by investing activities ................     (7,502,465)
                                                              ----------------
 
CASH FLOWS FROM FINANCING ACTIVITIES:
  Net proceeds from reverse repurchase agreements ..........     14,500,000
  Retirement of fund shares ................................       (505,457)
  Distributions paid to shareholders .......................    (12,132,877)
                                                              ----------------
      Net cash provided by financing activities ............      1,861,666
                                                              ----------------
  Net decrease in cash .....................................        (50,774)
  Cash at beginning of period ..............................        101,107
                                                              ----------------
 
      Cash at end of period .............................. $         50,333
                                                              ----------------
                                                              ----------------
 
Supplemental disclosure of cash flow information:
  Cash paid for interest on reverse repurchase
    agreements ........................................... $             --
                                                              ----------------
                                                              ----------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
                                       12
<PAGE>
- --------------------------------------------------------------------------------
                              FINANCIAL STATEMENTS
 
STATEMENTS OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
 
                                                              Six Months Ended
                                                                  4/30/96           Year Ended
                                                                (Unaudited)          10/31/95
                                                              ----------------   ----------------
<S>                                                           <C>                <C>
OPERATIONS:
  Net investment income .................................. $      5,208,051         13,335,445
  Net realized loss on investments .........................     (4,058,951)       (25,907,303)
  Net change in unrealized appreciation or depreciation of
    investments ............................................      2,387,670         45,260,530
                                                              ----------------   ----------------
 
    Net increase in net assets resulting from operations ...      3,536,770         32,688,672
                                                              ----------------   ----------------
 
DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income ...............................    (12,132,877)       (26,743,397)
                                                              ----------------   ----------------
 
CAPITAL SHARE TRANSACTIONS:
  Proceeds from issuance of 354,188 shares for the dividend
    reinvestment plan ......................................             --          2,442,217
  Payments for retirement of 68,900 and 273,300 shares,
    respectively (note 6) ..................................       (456,107)        (1,769,013)
                                                              ----------------   ----------------
    Increase (decrease) in net assets from capital share
      transactions .........................................       (456,107)           673,204
                                                              ----------------   ----------------
      Total increase (decrease) in net assets ..............     (9,052,214)         6,618,479
 
Net assets at beginning of period ..........................    173,726,347        167,107,868
                                                              ----------------   ----------------
 
Net assets at end of period .............................. $    164,674,133        173,726,347
                                                              ----------------   ----------------
                                                              ----------------   ----------------
 
Undistributed net investment income ...................... $      2,600,773          9,525,599
                                                              ----------------   ----------------
                                                              ----------------   ----------------
</TABLE>
 
SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
                                       13
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
 
(1) ORGANIZATION
                American Government Income Portfolio Inc. (the fund) is
                registered under the Investment Company Act of 1940 (as amended)
                as a non-diversified, closed-end investment management company.
                The fund invests primarily in obligations issued or guaranteed
                by the U.S. government, its agencies and instrumentalities,
                including mortgage-backed securities. The fund's investments in
                mortgage-backed securities include derivative securities, and
                the fund may purchase securities through the sale-forward
                (dollar-roll) program. Fund shares are listed on the New York
                Stock Exchange under the symbol AAF.
 
(2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
                INVESTMENTS IN SECURITIES
                The values of fixed income securities are determined using
                pricing services or prices quoted by independent brokers.
                Exchange-listed options are valued at the last sales price, and
                open financial futures contracts are valued at the last
                settlement price. When market quotations are not readily
                available, securities are valued at fair value according to
                methods selected in good faith by the board of directors.
                Short-term securities with maturities of 60 days or less are
                valued at amortized cost which approximates market value.
 
                Securities transactions are accounted for on the date the
                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 computed on
                a level-yield basis, is accrued daily.
 
                OPTIONS TRANSACTIONS
                For hedging purposes, the fund may buy and sell put and call
                options, write covered call options on portfolio securities, and
                write cash-secured puts. The risk in writing a call option is
                that the fund gives up the opportunity for profit if the market
                price of the security increases. The risk in writing a put
                option is that the fund may incur a loss if the market price of
                the security decreases and the option is exercised. The risk of
                buying an option is that the fund pays a premium whether or not
                the option is exercised. The fund also has the additional risk
                of not being able to enter into a closing transaction if a
                liquid secondary market does not exist.
 
                Option contracts are valued daily and unrealized appreciation or
                depreciation is recorded. The fund will realize a gain or loss
                upon expiration or closing of the option transaction. When an
                option is
 
                                       14
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
                exercised, the proceeds on the sale of a written call option,
                the purchase cost of a written put option, or the cost of a
                security for purchased put and call options is adjusted by the
                amount of premium received or paid.
 
                FUTURES TRANSACTIONS
                In order to gain exposure to or protect against changes in the
                market, the fund may buy and sell financial futures contracts
                and related options. Risks of entering into futures contracts
                and related options include the possibility there may be an
                illiquid market and that a change in the value of the contract
                or option may not correlate with changes in the value of the
                underlying securities.
 
                Upon entering into a futures contract, the fund is required to
                deposit either cash or securities in an amount (initial margin)
                equal to a certain percentage of the contract value. Subsequent
                payments (variation margin) are made or received by the fund
                each day. The variation margin payments are equal to the daily
                changes in the contract value and are recorded as unrealized
                gains and losses. The fund recognizes a realized gain or loss
                when the contract is closed or expires.
 
                INTEREST RATE TRANSACTIONS
                To preserve a return or spread on a particular investment or
                portion of its portfolio or for other non-speculative purposes,
                the fund may enter into various hedging transactions, such as
                interest rate swaps and the purchase of interest rate caps and
                floors. Interest rate swaps involve the exchange of commitments
                to pay or receive interest, e.g., an exchange of floating rate
                payments for fixed rate payments. The purchase of an interest
                rate cap entitles the purchaser, to the extent that a specified
                index exceeds a predetermined interest rate, to receive payments
                of interest on a contractually based notional principal amount
                from the party selling the interest rate cap. The purchase of an
                interest rate floor entitles the purchaser, to the extent that a
                specified index falls below a predetermined interest rate, to
                receive payments of interest on a contractually based notional
                principal amount from the party selling the interest rate floor.
 
                If forecasts of interest rates and other market factors are
                incorrect, investment performance will diminish compared to what
                performance would have been if these investment techniques were
                not used. Even
 
                                       15
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
                if the forecasts are correct, there is risk that the positions
                may correlate imperfectly with the asset or liability being
                hedged. Other risks of entering into these transactions are that
                a liquid secondary market may not always exist or that the other
                party to the transaction may not perform.
 
                For interest rate swaps, caps and floors, the fund accrues
                weekly, as an increase or decrease to interest income, the
                current net amount due to or owed by the fund. Interest rate
                swaps, caps and floors are valued from prices quoted by
                independent brokers. These valuations represent the present
                value of all future cash settlement amounts based on implied
                forward interest rates.
 
                SECURITIES PURCHASED ON A WHEN-ISSUED BASIS
                Delivery and payment for securities that have been purchased by
                the fund on a forward-commitment or when-issued 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 fund maintains, in a segregated account
                with its custodian, assets with a market value equal to the
                amount of its purchase commitments. The purchase of securities
                on a when-issued or forward-commitment basis may increase the
                volatility of the fund's net asset value if the fund makes such
                purchases while remaining substantially fully invested. As of
                April 30, 1996, the fund had no outstanding when-issued or
                forward-commitments.
 
                In connection with its ability to purchase securities on a
                when-issued or forward-commitment basis, the fund may enter into
                mortgage "dollar rolls" in which the fund sells securities for
                delivery in the current month and simultaneously contracts with
                the same counterparty to repurchase similar (same type, coupon
                and maturity) but not identical securities on a specified future
                date. As an inducement to "roll over" its purchase commitments,
                the fund receives negotiated fees. For the six months ended
                April 30, 1996, the fund earned no such fees.
 
                FEDERAL TAXES
                The 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
 
                                       16
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
                is required. However, the fund incurred federal excise taxes of
                $105,449, or $0.004 per share, on income retained during the
                1995 excise tax year.
 
                Net investment income and net realized gains (losses) may differ
                for financial statement and tax purposes primarily because of
                the differences in amortization policies for notional principal
                contracts, losses deferred due to "wash sale" transactions, the
                timing of recognition of income on certain collateralized
                mortgage-backed securities, and the non-deductibility of excise
                tax payments made. 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
                (losses) were recorded by the fund.
 
                DISTRIBUTIONS TO SHAREHOLDERS
                Distributions from net investment income are made monthly and
                realized capital gains, if any, will be distributed at least
                annually. These distributions are recorded as of the close of
                business on the ex-dividend date. Such distributions are payable
                in cash or, pursuant to the fund's dividend reinvestment plan,
                reinvested in additional shares of the fund's capital stock.
                Under the plan, fund shares will be purchased in the open market
                unless the market price plus commissions exceeds the net asset
                value by 10% or more. If, at the close of business on the
                dividend payment date, the shares purchased in the open market
                are insufficient to satisfy the dividend reinvestment
                requirement, the fund will issue new shares at a discount of up
                to 5% from the current market price.
 
                REPURCHASE AGREEMENTS
                For repurchase agreements entered into with certain
                broker-dealers, the fund, along with other affiliated registered
                investment companies, may transfer uninvested cash balances into
                a joint trading account, the daily aggregate of which is
                invested in repurchase agreements secured by U.S. government or
                agency obligations. Securities pledged as collateral for all
                individual and joint repurchase agreements are held by the
                fund's custodian bank until maturity of the repurchase
                agreement. Provisions for all agreements ensure that the daily
                market
 
                                       17
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
                value of the collateral is in excess of the repurchase amount,
                including accrued interest, to protect the fund in the event of
                a default.
 
                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 disclosures of contingent assets
                and liabilities at the date of the financial statements and the
                reported results of operations during the reporting period.
                Actual results could differ from those estimates.
 
(3) EXPENSES
                The fund has entered into the following agreements with Piper
                Capital Management Incorporated (the adviser and administrator):
 
                The investment advisory agreement provides the adviser with a
                monthly investment management fee in an amount equal to an
                annualized rate of 0.30% of the fund's average weekly net assets
                and 5.25% of the daily gross income (i.e., investment income,
                including amortization of discount and premium, other than gains
                from the sale of securities or gains from options and futures
                contracts less interest on money borrowed by the fund) accrued
                by the fund during the month. The monthly investment management
                fee shall not exceed in the aggregate 1/12th of 0.60% of the
                fund's average weekly net assets during the month (approximately
                0.60% on an annual basis). For its fee, the adviser provides
                investment advice and conducts the management and investment
                activity of the fund.
 
                The administration agreement provides the administrator with a
                monthly fee in an amount equal to an annualized rate of 0.20% of
                the fund's average weekly net assets. For its fee, the
                administrator provides reporting, regulatory and record-keeping
                services for the fund.
 
                In addition to the investment management and administrative
                fees, the fund is 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.
 
                                       18
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
 
                Expenses paid indirectly represent a reduction of custodian fees
                for earnings on cash balances maintained by the fund.
 
(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 April 30, 1996 aggregated $128,192,824 and
                $121,563,605, respectively. During the six months ended April
                30, 1996, the fund paid no brokerage commissions to Piper
                Jaffray Inc., an affiliated broker.
 
(5) CAPITAL LOSS CARRYOVER
                For federal income tax purposes, the fund had capital loss
                carryovers of $56,588,199 as of October 31, 1995, which, if not
                offset by subsequent capital gains, will expire in 2002 and
                2003. It is unlikely the board of directors will authorize a
                distribution of any net realized capital gains until the
                available capital loss carryover has been offset or expires.
 
(6) RETIREMENT OF FUND SHARES
                The fund's board of directors has approved a plan to discontinue
                the share repurchase plan effective February 6, 1996. Pursuant
                to the plan, the fund had cumulatively repurchased and retired
                342,200 shares as of February 5, 1996, which represents 1.6% of
                the shares originally issued.
 
(7) PENDING LITIGATION
                An amended complaint purporting to be a class action was filed
                on September 7, 1995, in the United States District Court for
                the Western District of Washington against the fund, seven other
                closed-end investment companies for which Piper Capital
                Management Incorporated acts as investment adviser: American
                Government Income Fund Inc. (AGF); American Opportunity Income
                Fund Inc. (OIF); American Government Income Portfolio Inc.
                (AAF); American Strategic Income Portfolio (ASP); American
                Strategic Income Portfolio II (BSP); American Strategic Income
                Portfolio II (CSP) and American Select Portfolio (SLA), Piper
                Jaffray Companies Inc., Piper Jaffray Inc., Piper Capital
                Management Incorporated and certain individuals. The complaint
                alleges, among other things, violations of federal and state
                securities laws. The named plaintiffs and defendants in this
                putative class action have reached an agreement-in-principle on
                a proposed settlement and are negotiating the terms of a
                definitive settlement agreement. If approved by the Court, a
                definitive settlement agreement consistent with the terms of the
                agreement-in-principle would provide $15.5 million to class
                members
 
                                       19
<PAGE>
- --------------------------------------------------------------------------------
                   NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
                in payments by Piper Jaffray Companies Inc. and Piper Capital
                Management Incorporated scheduled during the next four years.
                The settlement also includes an agreement that each of AGF, AAF
                and OIF would offer to repurchase up to 25 percent of their
                outstanding shares from current shareholders at net asset value.
                If the discounts between net asset value and market price of
                these funds do not decrease to 5 percent or less within
                approximately two years after the effective date of the
                settlement, the fund boards would submit shareholder proposals
                to convert these funds to an open-end format unless the boards
                determine at that time that it would not be in fund
                shareholders' best interests to do so. Finally, the agreement
                stipulates that each of ASP, BSP, CSP and SLA would offer to
                repurchase up to 10 percent of their outstanding shares from
                current shareholders at net asset value. The repurchase offers
                would occur after the effective date of the settlement following
                Court approval.
 
                                       20
<PAGE>
- --------------------------------------------------------------------------------
                         NOTES TO FINANCIAL STATEMENTS
 
(8) FINANCIAL HIGHLIGHTS
                Per-share data for a share of capital stock outstanding
                throughout each period and selected information for each period
                are as follows:
 
<TABLE>
<CAPTION>
                                                Six
                                               months
                                               ended                    Fiscal year ended October 31,
                                              4/30/96      --------------------------------------------------------
                                              (Unaudited)   1995         1994        1993        1992        1991
                                              --------     -------     --------     -------     -------     -------
<S>                                           <C>          <C>         <C>          <C>         <C>         <C>
PER-SHARE DATA
 
Net asset value, beginning of period ... $       7.08        6.83        10.99       11.00       10.02        8.73
                                              --------     -------     --------     -------     -------     -------
Operations:
  Net investment income ..................       0.21        0.54         0.90        1.90        1.37        1.05
  Net realized and unrealized gains
    (losses) on investments ..............      (0.06)       0.80        (3.50)      (0.04)       0.71        1.24
                                              --------     -------     --------     -------     -------     -------
    Total from operations  ...............       0.15        1.34        (2.60)       1.86        2.08        2.29
                                              --------     -------     --------     -------     -------     -------
Distributions to shareholders:
  From net investment income .............      (0.50)      (1.09)       (1.41)      (1.27)      (1.04)      (1.00)
  Net realized gains on investments ......         --          --           --       (0.60)      (0.06)         --
  In excess of net realized gains on
    investments ..........................         --          --        (0.15)         --          --          --
                                              --------     -------     --------     -------     -------     -------
    Total distributions to shareholders
       ...................................      (0.50)      (1.09)       (1.56)      (1.87)      (1.10)      (1.00)
                                              --------     -------     --------     -------     -------     -------
    Net asset value, end of period ..... $       6.73        7.08         6.83       10.99       11.00       10.02
                                              --------     -------     --------     -------     -------     -------
    Market value, end of period ........ $       5.75        7.00         7.25       12.00       11.00       10.13
                                              --------     -------     --------     -------     -------     -------
                                              --------     -------     --------     -------     -------     -------
 
SELECTED INFORMATION
 
Total return, net asset value (a) ........       2.07%      21.40%      (25.93)%     18.66%      21.86%      27.65%
Total return, market value (b) ...........     (11.43)%     13.46%      (29.14)%     28.18%      20.15%      26.36%
Net assets at end of period (in
  millions) ............................ $        165         174          167         261         257         234
Ratio of expenses to average weekly net
  assets (c) .............................       1.12%(f)    1.41%        1.28%       0.95%       1.25%       1.01%
Ratio of net investment income to average
  weekly net assets ......................       6.20%(f)    7.93%       10.84%      17.42%      13.12%      11.25%
Portfolio turnover rate (excluding short-
  term securities) .......................         72%        206%         106%         79%        100%         94%
Amount of borrowings outstanding at end of
  period (in millions) (d) ............. $         15          --           --          97          95          61
Per-share amount of borrowings outstanding
  at end of period ..................... $       0.59          --           --        4.06        4.07        2.61
Per-share amount of net assets, excluding
  borrowings, at end of period ......... $       7.32          --           --       15.05       15.07       12.63
Asset coverage ratio (e) .................      1,236%         --           --         370%        370%        484%
</TABLE>
 
(A)  BASED ON THE CHANGE IN NET ASSET VALUE OF A SHARE DURING THE PERIOD AND
     ASSUMES REINVESTMENT OF DISTRIBUTIONS AT NET ASSET VALUE.
(B)  BASED ON THE CHANGE IN MARKET PRICE OF A SHARE DURING THE PERIOD AND
     ASSUMES REINVESTMENT OF DISTRIBUTIONS AT ACTUAL PRICES PURSUANT TO THE
     FUND'S DIVIDEND REINVESTMENT PLAN.
(C)  INCLUDES 0.13%, 0.38%, 0.30%, AND 0.26% FROM FEDERAL EXCISE TAXES IN THE
     SIX MONTHS ENDED 4/30/96 AND FISCAL YEARS 1995, 1994 AND 1992 RESPECTIVELY.
     BEGINNING IN FISCAL 1995, THE EXPENSE RATIOS REFLECT THE EFFECT OF GROSS
     EXPENSES PAID INDIRECTLY BY THE FUND. PRIOR PERIOD EXPENSE RATIOS HAVE NOT
     BEEN ADJUSTED.
(D)  SECURITIES PURCHASED ON A WHEN-ISSUED BASIS FOR WHICH LIQUID, HIGH-GRADE
     DEBT OBLIGATIONS ARE MAINTAINED IN A SEGREGATED ACCOUNT ARE NOT CONSIDERED
     BORROWINGS. SEE FOOTNOTE 2 IN THE NOTES TO FINANCIAL STATEMENTS.
(E)  REPRESENTS NET ASSETS, EXCLUDING BORROWINGS, AT END OF PERIOD DIVIDED BY
     BORROWINGS OUTSTANDING AT END OF PERIOD.
(F)  ADJUSTED TO AN ANNUAL BASIS.
 
                                       21
<PAGE>
- --------------------------------------------------------------------------------
                      INVESTMENTS IN SECURITIES (Unaudited)
 
AMERICAN GOVERNMENT INCOME PORTFOLIO
APRIL 30, 1996
 
<TABLE>
<CAPTION>
                                                           Principal         Market
Name of Issuer                                               Amount         Value (a)
- ---------------------------------------------------------  ----------      -----------
<S>                                                        <C>             <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
U.S. GOVERNMENT AND AGENCY SECURITIES (106.7%):
 U.S. Government Treasury Securities (19.8%):
   U.S. Treasury Note, 6.38%, 8/15/02 ................. $   2,000,000        1,985,620
   U.S. Treasury Note, 5.75%, 8/15/03 ...................  28,500,000(b)    27,118,035
   U.S. Treasury Note, 6.13%, 5/15/98 ...................   2,000,000        2,002,780
   U.S. Treasury Note, 6.50%, 8/15/05 ...................   1,500,000        1,480,065
                                                                           -----------
                                                                            32,586,500
                                                                           -----------
 
 U.S. Mortgage-Backed Securities (c) (86.9%):
 U.S. Agency Fixed Rate (79.8%):
   7.00%, FHLMC, 9/1/10 .................................   4,733,404        4,683,040
   6.50%, FHLMC, 2/1/26 .................................   3,983,315        3,740,531
   6.50%, FHLMC, 11/1/25 ................................   2,543,844        2,388,796
   6.50%, FHLMC, 2/1/26 .................................     512,520          481,281
   6.50%, FHLMC, 3/1/26 .................................   1,462,547        1,373,405
   7.50%, FHLMC, 8/1/25 .................................   9,457,183        9,353,627
   7.00%, FHLMC, 9/1/10 .................................   2,796,963        2,767,203
   7.00%, FHLMC, 10/1/10 ................................  10,523,329       10,411,361
   7.00%, FNMA, 1/1/08 ..................................     879,544          871,567
   7.00%, FNMA, 5/1/09 ..................................   2,626,785        2,598,021
   7.00%, FNMA, 10/1/25 .................................   3,569,869        3,442,639
   7.00%, FNMA, 4/1/26 ..................................   5,004,931        4,825,066
   6.50%, FNMA, 4/1/11 ..................................   5,100,000        4,939,031
   6.50%, FNMA, 3/1/11 ..................................   3,042,002        2,946,879
   7.50%, FNMA, 1/1/26 ..................................   8,206,718        8,109,141
   7.50%, FNMA, 2/1/26 ..................................   8,560,827        8,459,039
   7.00%, FNMA, 4/1/26 ..................................  12,119,998       11,688,041
   7.00%, FNMA, 3/1/26 ..................................   6,434,999        6,205,656
   6.50%, FNMA, 4/1/11 ..................................   2,450,000        2,373,389
   6.50%, GNMA, 10/15/10 ................................   2,367,134        2,308,666
   7.00%, GNMA, 12/15/10 ................................   5,352,652        5,319,091
   9.00%, GNMA II, 5/20/22 ..............................   2,830,002        2,953,758
   8.50%, GNMA II, 2/20/25 ..............................   7,665,852        7,886,169
   9.00%, GNMA II, 1/20/25 ..............................   2,905,235        3,032,281
   9.00%, GNMA II, 4/20/25 ..............................   1,398,889        1,460,063
   8.00%, GNMA II, 6/20/25 ..............................   5,075,865        5,112,259
   8.50%, GNMA II, 6/20/25 ..............................   2,163,130        2,225,299
   9.00%, GNMA II, 5/20/25 ..............................   1,572,502        1,641,267
   8.00%, GNMA II, 7/20/25 ..............................   2,992,218        3,013,672
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
                                       22
<PAGE>
- --------------------------------------------------------------------------------
                      INVESTMENTS IN SECURITIES (UNAUDITED)
 
AMERICAN GOVERNMENT INCOME PORTFOLIO
(CONTINUED)
 
<TABLE>
<CAPTION>
                                                           Principal         Market
Name of Issuer                                               Amount         Value (a)
- ---------------------------------------------------------  ----------      -----------
<S>                                                        <C>             <C>
   8.00%, GNMA II, 10/20/25 ........................... $   4,817,335        4,851,876
                                                                           -----------
                                                                           131,462,114
                                                                           -----------
 U.S. Agency Adjustable Rate (3.5%):
   6.88%, FHLMC, 10/1/19 ................................   5,717,781        5,712,921
                                                                           -----------
 
 U.S. Agency Inverse Floater (1.1%):
   5.86%, FHLMC, Series 1487, Class IB, 7 year CMT,
    3/15/23 .............................................   2,252,490        1,758,271
                                                                           -----------
 
 U.S. Agency Z-Tranche (2.5%):
   7.56%, FNMA, Series 1994-52, Class Z, 4/25/07 ........   4,336,925        4,130,921
                                                                           -----------
 
    Total U.S. Mortgage-Backed Securities  ..............                  143,064,227
                                                                           -----------
 
    Total U.S. Government and Agency Securities
     (cost: $179,165,375)  ..............................                  175,650,727
                                                                           -----------
 
INTEREST RATE CONTRACTS (C) (0.7%):
   Interest rate cap with Goldman Sachs, $20,000,000
    notional principal on one-month LIBOR (5.44% on
    4/30/96), 4.50%, 9/10/97 ............................          --          364,000
   Interest rate cap with Merrill Lynch, $20,000,000
    notional principal on one-month LIBOR (5.44% on
    4/30/96), 4.50%, 9/10/97 ............................          --          364,000
   Interest rate cap with Morgan Stanley, $20,000,000
    notional principal on one-month LIBOR (5.44% on
    4/30/96), 4.50%, 9/10/97 ............................          --          364,000
                                                                           -----------
 
    Total Interest Rate Contracts
     (cost: $498,021)  ..................................                    1,092,000
                                                                           -----------
 
SHORT-TERM SECURITIES (0.6%):
   Repurchase agreement with Goldman Sachs in a joint
    trading account, collateralized by U.S. government
    agency securities, acquired on 4/30/96 accrued
    interest of $157, 5.33%, 5/1/96
    (cost: $1,063,000) ..................................   1,063,000        1,063,000
                                                                           -----------
 
    Total Investments in Securities
     (cost: $180,726,396) (d) ......................... $                  177,805,727
                                                                           -----------
                                                                           -----------
</TABLE>
 
SEE ACCOMPANYING NOTES TO INVESTMENTS IN SECURITIES.
 
                                       23
<PAGE>
- --------------------------------------------------------------------------------
                      INVESTMENTS IN SECURITIES (UNAUDITED)
 
NOTES TO INVESTMENTS IN SECURITIES:
 
(A)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(B)  ON APRIL 30, 1996, SECURITIES VALUED AT $14,455,340 WERE PLEDGED AS
     COLLATERAL FOR THE FOLLOWING OUTSTANDING REVERSE REPURCHASE AGREEMENTS:
 
<TABLE>
<S>           <C>         <C>          <C>        <C>        <C>
                                                             NAME OF BROKER
              ACQUISITION                          ACCRUED   AND DESCRIPTION
   AMOUNT        DATE        RATE         DUE     INTEREST    OF COLLATERAL
- ------------  ----------  -----------  ---------  ---------  ---------------
$  8,000,000   4/11/96         5.33  %  6/13/96   $  17,766        (1)
   6,500,000   4/25/96         5.28  %  6/25/96       4,767        (2)
- ------------                                      ---------
$ 14,500,000                                      $  22,533
- ------------                                      ---------
- ------------                                      ---------
</TABLE>
 
     NAME OF BROKER AND DESCRIPTION OF COLLATERAL:
     (1) MORGAN STANLEY; U.S. TREASURY NOTE, 5.75%, 8/15/03, $8,000,000 PAR
     (2) MORGAN STANLEY; U.S. TREASURY NOTE, 5.75%, 8/15/03, $6,760,000 PAR
(C)  DEFINITION OF CERTAIN TERMS:
     ADJUSTABLE RATE - REPRESENTS SECURITIES THAT PAY INTEREST AT RATES THAT
       INCREASE (DECREASE) WITH AN INCREASE (DECREASE) IN THE SPECIFIED INDEX.
     CMT - CONSTANT MATURITY TREASURY.
     LIBOR - LONDON INTERBANK OFFERED RATE.
     INVERSE FLOATER - REPRESENTS SECURITIES THAT PAY INTEREST AT RATES THAT
       INCREASE (DECREASE) WITH A DECREASE (INCREASE) IN THE SPECIFIED INDEX.
       THE INTEREST RATE PAID BY THE INVERSE FLOATER WILL GENERALLY CHANGE AT A
       MULTIPLE OF ANY CHANGE IN THE INDEX. INTEREST RATES DISCLOSED ARE IN
       EFFECT ON APRIL 30, 1996.
     Z-TRANCHE -- REPRESENTS SECURITIES THAT PAY NO INTEREST OR PRINCIPAL DURING
       THEIR INITIAL ACCRUAL PERIODS, BUT ACCRUE ADDITIONAL PRINCIPAL AT
       SPECIFIED RATES. INTEREST RATE DISCLOSED REPRESENTS CURRENT YIELD BASED
       UPON THE COST BASIS AND ESTIMATED TIMING OF FUTURE CASH FLOWS.
(D)  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 .... $      834,944
      GROSS UNREALIZED DEPRECIATION ......   (3,755,613)
                                            -----------
        NET UNREALIZED DEPRECIATION .... $   (2,920,669)
                                            -----------
                                            -----------
</TABLE>
 
                                       24
<PAGE>
- --------------------------------------------------------------------------------
                             DIRECTORS AND OFFICERS
 
DIRECTORS           David T. Bennett, CHAIRMAN, HIGHLAND HOMES, INC.,
                        USL PRODUCTS, INC., KIEFER BUILT, INC., OF
                        COUNSEL, GRAY, PLANT, MOOTY, MOOTY & BENNETT,
                        P.A.
                    Jaye F. Dyer, PRESIDENT, DYER MANAGEMENT COMPANY
                    William H. Ellis, PRESIDENT, PIPER JAFFRAY
                        COMPANIES INC., PIPER CAPITAL MANAGEMENT
                        INCORPORATED
                    Karol D. Emmerich, PRESIDENT, THE PARACLETE GROUP
                    Luella G. Goldberg, DIRECTOR, TCF FINANCIAL,
                        RELIASTAR FINANCIAL CORP., HORMEL FOODS CORP.
                    George Latimer, CHIEF EXECUTIVE OFFICER, NATIONAL
                        EQUITY FUNDS
 
OFFICERS            William H. Ellis, CHAIRMAN OF THE BOARD
                    Worth Bruntjen, PRESIDENT
                    Paul A. Dow, SENIOR VICE PRESIDENT
                    Bruce D. Salvog, SENIOR VICE PRESIDENT
                    Thomas S. McGlinch, SENIOR VICE PRESIDENT
                    Robert H. Nelson, SENIOR VICE PRESIDENT AND
                        TREASURER
                    Molly J. Destro, VICE PRESIDENT
                    Amy K. Johnson, VICE PRESIDENT
                    Paul D. Pearson, VICE PRESIDENT
                    Susan Sharp Miley, SECRETARY
 
INVESTMENT ADVISER  Piper Capital Management Incorporated
                    222 SOUTH NINTH STREET, MINNEAPOLIS, MN 55402-3804
 
CUSTODIAN AND       Investors Fiduciary Trust Company
TRANSFER AGENT      127 WEST 10TH STREET, KANSAS CITY, MO 64105-1716
 
LEGAL COUNSEL       Dorsey & Whitney LLP
                    220 SOUTH SIXTH STREET, MINNEAPOLIS, MN 55402
 
                                       25
<PAGE>

                                                                ---------------
PIPER CAPITAL                                                      Bulk Rate
 MANAGEMENT                                                      U.S. Postage
                                                                      PAID
PIPER CAPITAL MANAGEMENT INCORPORATED                           Permit No. 3008
222 SOUTH NINTH STREET                                              Mpls., MN
MINNEAPOLIS, MN 55402-3804                                      ---------------

[LOGO] THIS DOCUMENT IS PRINTED ON PAPER MADE FROM
       100% TOTAL RECOVERED FIBER, INCLUDING 15% POST-CONSUMER WASTE.

In an effort to reduce costs to our shareholders, we have
implemented a process to reduce duplicate mailings of
the fund's shareholder reports. This householding
process should allow us to mail one report to each
address where one or more registered shareholders with
the same last name reside. If you would like to have
additional reports mailed to your address, please call our
Shareholder Services area at 1 800 866-7778, or mail
your request to:

Piper Capital Management
Attn: Communications Department
222 South Ninth Street
Minneapolis, MN 55402-3804


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