PIPER FUNDS INC
N-30D, 1997-11-26
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<PAGE>

Income Funds - 1997 Annual Report

[LOGO]

INCOME FUNDS

1997 Annual Report

GOVERNMENT INCOME FUND

INTERMEDIATE BOND FUND

ADJUSTABLE RATE MORTGAGE SECURITIES FUND


INSIDE:  ACTION OR REACTION --

Which Guides Your Approach to Investing?


[PICTURE]
<PAGE>

[LOGO]


CONTENTS

President's Letter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Independent Auditors' Report . . . . . . . . . . . . . . . . . . . . . . . 28
Federal Tax Information  . . . . . . . . . . . . . . . . . . . . . . . . . 29
Shareholder Services . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Glossary***. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

GOVERNMENT INCOME FUND

Portfolio Managers' Letter . . . . . . . . . . . . . . . . . . . . . . . . .4
Financial Statements and Notes . . . . . . . . . . . . . . . . . . . . . . 12
Investments in Securities. . . . . . . . . . . . . . . . . . . . . . . . . 25

INTERMEDIATE BOND FUND

Portfolio Managers' Letter . . . . . . . . . . . . . . . . . . . . . . . . .7
Financial Statements and Notes . . . . . . . . . . . . . . . . . . . . . . 12
Investments in Securities. . . . . . . . . . . . . . . . . . . . . . . . . 26

ADJUSTABLE RATE MORTGAGE SECURITIES FUND

Portfolio Managers' Letter . . . . . . . . . . . . . . . . . . . . . . . . 10
Financial Statements and Notes . . . . . . . . . . . . . . . . . . . . . . 12
Investments in Securities. . . . . . . . . . . . . . . . . . . . . . . . . 27


This report is intended for shareholders of Government Income Fund, Intermediate
Bond Fund and Adjustable Rate Mortgage Securities Fund, but may also be used as
sales literature if preceded or accompanied by a prospectus. The prospectus
gives details about the charges, investment results, risks and operating
policies of the funds.

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

ACTION
- --------------------------------------------------------------------------------

WHICH GUIDES YOUR APPROACH TO INVESTING?
The market soars 150 points. The market plummets 150 points. One financial
commentator urges investors to sell stocks and buy bonds. Another promotes a
"can't miss" investment opportunity. One thing is for sure -- in today's
financial markets, it's easy to get the impression that investment experts
possess a secret formula for success. Yet many successful investors realize
there are no short-term secrets to investing. While others heed market
soothsayers and prophets, savvy investors work with investment professionals who
help them remain calm in the face of volatility. Guided by long-term investment
plans rather than by emotions, these investors stay the course while others
react to the latest trend. More important, successful investors employ several
time-tested investment strategies to help reach their goals, including
diversification and systematic investing.*


- --------------------------------------------------------------------------------
WALL STREET'S WILD RIDE
- --------------------------------------------------------------------------------
Dow Jones Industrial Average

         8/1                 8194
         8/4                 8198
         8/5                 8188
         8/6                 8259
High     8/6/97             8,259
         8/7                 8188
         8/8                 8031
         8/11                8062
         8/12                7961
         8/13                7928
         8/14                7942
         8/15                7695
         8/18                7803
         8/19                7918
         8/20                8021
         8/21                7894
         8/22                7888
         8/25                7860
         8/26                7782
         8/27                7787
         8/28                7694
         8/29                7622
         9/2                 7880
         9/3                 7895
         9/4                 7867
         9/5                 7822
         9/8                 7835
         9/9                 7852
         9/10                7719
         9/11                7661
         9/12                7743
         9/15                7721
         9/16                7896
         9/17                7886
         9/18                7923
         9/19                7917
         9/22                7997
         9/23                7970
         9/24                7907
         9/25                7848
         9/26                7922
         9/29                7991
         9/30                7945
        10/1                 8016
        10/2                 8028
        10/3                 8039
        10/6                 8100
        10/7                 8178
        10/8                 8095
        10/9                 8061
        10/10                8045
        10/13                8072
        10/14                8096
        10/15                8058
        10/16                7939
        10/17                7847
        10/20                7921
        10/21                8060
        10/22                8035
        10/23                7848
        10/24                7715
        10/27                7161
Low     10/27/97            7,161
        10/28                7498
        10/29                7507
        10/30                7382
        10/31                7442


DO YOUR EXPECTATIONS REFLECT MARKET REALITIES?
Investors' expectations have risen with the market -- and are in sharp contrast
to market realities. In the words of Federal Reserve Chairman Alan Greenspan,
there is an "irrational exuberance" based on unprecedented growth in recent
years. During the past few years, returns -- especially from stocks -- have been
much higher than at any other time in history. The chart below shows long-term
returns of various securities compared to the highly inflated results of the
past year.


- --------------------------------------------------------------------------------
SHORT-TERM RETURNS VS. LONG-TERM RETURNS THROUGH SEPTEMBER 30, 1997
- --------------------------------------------------------------------------------
The past year has provided investors with unusually high returns


[EDGAR REPRESENTATION OF GRAPH]

                                     THE PAST YEAR            PAST 71 YEARS
                                     total return          average annualized
                                                         total return, 1926-1997

Large-Company Stocks                    40.49%                   10.98%
Long-Term Corporate Bonds               12.67%                    5.67%

Source:  Ibbotson Associates.  Past performance does not guarantee future
results.  Stocks generally exhibit more volatility than bonds.


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

OR REACTION
- --------------------------------------------------------------------------------

What  actions  do successful investors take to weather the market's normal ups
and downs? First, they realize that markets move in cycles. In addition, they
diversify their holdings among a mix of funds that mirror their investment
objectives and risk tolerance and continue to purchase fund shares
systematically. By investing regularly* -- consistently buying shares through
market fluctuations -- educated investors steadily increase the number of shares
they own, while evening out their average cost per share over time.

THE MISGUIDED REACTIVE INVESTOR
The reactive investor believes that a shortcut to success is to chase today's
best-performing funds. After all, what could go wrong when you invest in these
winners? Plenty. The lure of a quick profit could fade to the reality of poor
returns for reactive investors who buy in at the peak of a fund's rally. They
often buy when prospects look bright and sell when prices drop -- behavior that
can devastate an investor's returns even while the market makes solid gains.

In contrast, educated investors don't succumb to emotions that could undermine
rational decisions. They're aware that few, if any, mutual funds can
significantly outperform their peers year after year. They also realize that
long-term investing helps reduce volatility. A buy-and-hold philosophy protects
investors against wild swings triggered by short-term market fluctuations -- and
helps them sleep better at night, too.

IT'S A FACT: INVESTORS PROFIT FROM THEIR ACTIONS, NOT THEIR REACTIONS
If you want to be successful in the financial marketplace, don't be swayed by
emotions or speculation. Keep in mind that markets change daily, yet your goals
may not change for years. Work with your  Piper Jaffray Investment Executive to
develop an investment plan or to fine-tune your investment strategies as your
objectives change.  A professional can help you ignore short-term volatility and
focus on long-term results. Your actions -- not your reactions -- ultimately
represent the difference between getting by ... and getting ahead.


* Keep in mind, investing regularly does not assure a profit and does not
protect against loss in declining markets.


TAKE THE GUESSWORK OUT OF INVESTING WITH THESE TRIED-AND-TRUE INVESTMENT 
STRATEGIES
- --------------------------------------------------------------------------------

X   GET AN INVESTMENT PLAN  An investment plan maps out your goals and
    identifies effective ways to pursue them.

X   INVEST SYSTEMATICALLY*  Systematic investing is an effective way to build
    wealth over time and helps you avoid hitting only market peaks and valleys.

X   DIVERSIFY  Diversification helps reduce volatility within your portfolio
    and may also give you better long-term results.

X   REASSESS YOUR RISK TOLERANCE  Life's events may affect the amount of risk
    that's comfortable.

A "BUY-AND-HOLD" PHILOSOPHY HELPS REDUCE YOUR RISK
- --------------------------------------------------------------------------------
Your chance of losing money decreases the longer you hold stocks

[EDGAR REPRESENTATION OF GRAPH]

HOLDING STOCKS FOR ONE YEAR                                                29%
HOLDING STOCKS FOR FIVE YEARS                                              11%
HOLDING STOCKS FOR 10 YEARS                                                 3%

Source: Based on rolling annual returns of the S&P 500 Index through 1996. The
S&P 500 is an unmanaged index of large-capitalization stocks. Past performance
does not guarantee future results.
<PAGE>

PRESIDENT'S LETTER
- --------------------------------------------------------------------------------

[PHOTO]
PAUL A. DOW, CFA
- -------------------------------------------------------------------------------
President
Piper Funds

November 13, 1997
- --------------------------------------------------------------------------------

DEAR SHAREHOLDERS:

An athlete is sometimes said to be "in the zone." That's the time when the
difficult seems easy, the fast seems slow; essentially, the time when everything
comes together and performance soars. For the last few years, the investment
environment has been in the zone. The economy has maintained a steady growth
rate without increasing inflationary pressures. In fact, economic
prognosticators have consistently underestimated growth and overestimated
inflation - traditionally considered an impossible feat.

Fixed income investors have fared well during this period with broad bond market
total returns between 8% and 10%, annualized, for the past three years. Returns
have been attractive, although low compared to investor expectations and stock
performance and have been helped by steadily declining inflation expectations.
Non-government issues have further benefited from investors' increasing degree
of comfort with credit risk. As a result, the amount of additional yield
required by investors to take on credit risk has declined, as illustrated by the
chart on the following page. This is a normal occurrence during a period of
economic growth, but is not sustainable permanently.

This attractive environment for fixed income investors has not been without
setbacks, however. The year started in an interest rate environment that was
particularly good until February, when a series of stronger-than-expected
economic reports raised inflation concerns among investors and caused interest
rates to rise and bond prices to fall. Then in March, in a pre-emptive strike
against inflation, the Federal Reserve Board raised the federal funds rate by a
quarter of one percent. General bond market indexes finished the first calendar
quarter with slightly negative total returns in the -0.50% to -0.90% range. The
bond market made a strong rebound during the next quarter, helped along by
decelerating inflation and signs of a slowing economy. The market sustained this
rally throughout the fall.

During this time of buoyant investor confidence, it is important to be watchful
of significant changes that may alter the generally positive condition of the
U.S. investment environment. Late last month, we watched as turmoil in Hong Kong
dramatically affected our own markets. While the recent events in Southeast Asia
may seem irrelevant to the U.S. bond market, it's important to pay attention to
the long-term implications. For example, the deflation experienced in Japan last
month is spreading to other countries in the region, leading to overcapacity in
the goods they produce. This could result in lower global growth and interest
rates - as well as a slowing U.S. economy, which could jeopardize corporate
earnings growth and send a wave of defensive buying activity into the  bond
markets.


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

                                            2  1997 Annual Report - Income Funds
<PAGE>

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

When markets change, it is important to clearly understand, and be disciplined
in, your investment strategy. At Piper Funds, we believe that maintaining sound,
disciplined investment strategies is essential to achieving consistent,
competitive performance in an ever-changing environment. We also believe in
providing a higher level of quality service to shareholders. That means going
the extra step to make sure you understand your investments. Take a look at the
fund prospectus that accompanies this shareholder report. We've revised it to
make it simpler and easier to read. We hope the information in your new
prospectus, and in this shareholder report, is useful to you, and we look
forward to continuing to provide you with exceptional service. Thank you for
your continued confidence in the Piper Funds family.


Sincerely,



/s/ Paul A. Dow

Paul A. Dow
President, Piper Funds


- --------------------------------------------------------------------------------
BOND YIELD SPREAD
- --------------------------------------------------------------------------------
BAA Less AAA (Corporate Bonds)


[GRAPH -  PLOT POINTS TO COME]



Sources: Moody's Investors Service - Copyright-C-1997 Crandall, Pierce & Company


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

                                            3  1997 Annual Report - Income Funds
<PAGE>

GOVERNMENT INCOME FUND
- --------------------------------------------------------------------------------

[PHOTO]
BRUCE SALVOG
shares responsibility for the management of Government Income Fund. He has 27
years of financial experience.
- --------------------------------------------------------------------------------


November 13, 1997
- --------------------------------------------------------------------------------

DEAR SHAREHOLDERS:

FOR THE ONE-YEAR PERIOD ENDED SEPTEMBER 30, 1997, GOVERNMENT INCOME FUND 
RECORDED A 10.49%* TOTAL RETURN WITH ALL DISTRIBUTIONS REINVESTED, BUT NOT 
INCLUDING THE FUND'S SALES CHARGE. The fund outperformed its benchmark,*** 
the Merrill Lynch 5-10 Year Treasury Index (9.64%)** and the Lipper U.S. 
Mortgage Funds Average (9.15%).+ Security selection, asset allocation and 
decisions affecting effective duration*** were largely responsible for the 
fund's relatively strong investment results.

THE FUND ENJOYED SOLID PERFORMANCE FROM SEVERAL DIFFERENT SECTORS. In March, as
interest rates rose, our overweighting*** in mortgage-backed securities proved
beneficial to the fund. When rates rise, mortgage-backed securities typically
outperform Treasuries. In July, as interest rates declined on news the economy
was slowing, the fund realized good performance from its exposure to Z-bonds and
U.S. Treasuries. Both tend to be more sensitive to interest-rate changes than
other fixed income securities. During the year, the fund enjoyed good investment
results from its positions in discount*** and seasoned*** premium mortgage
securities. Seasoned premium mortgage-backed securities provide relatively high
predictable income, while discount mortgage securities tend to appreciate more
than other mortgage-backed securities when interest rates decline.


- --------------------------------------------------------------------------------
PERFORMANCE THROUGH SEPTEMBER 30, 1997*
- --------------------------------------------------------------------------------
Growth of $10,000 Invested Since Inception

            Government Income
          Fund, reflects the      Merrill Lynch          Lipper
                fund's 2%          5-10 Year          U.S. Mortgage
            sales charge++     Treasury Index**      Funds Average+

 3/87              9,800              10,000              10,000
 3/87              9,790              10,000              10,000
 4/87              9,562               9,700               9,712
 5/87              9,524               9,644               9,678
 6/87              9,715               9,757               9,818
 7/87              9,643               9,721               9,836
 8/87              9,521               9,630               9,779
 9/87              9,184               9,371               9,523
10/87              9,662               9,798               9,843
11/87              9,721               9,838               9,947
12/87              9,841               9,978              10,066
 1/88             10,241              10,371              10,411
 2/88             10,352              10,512              10,528
 3/88             10,194              10,366              10,439
 4/88             10,107              10,309              10,395
 5/88             10,005              10,189              10,328
 6/88             10,317              10,451              10,567
 7/88             10,326              10,374              10,539
 8/88             10,295              10,373              10,546
 9/88             10,483              10,646              10,771
10/88             10,645              10,846              10,969
11/88             10,595              10,667              10,840
12/88             10,544              10,659              10,805
 1/89             10,654              10,809              10,942
 2/89             10,650              10,696              10,871
 3/89             10,637              10,770              10,886
 4/89             10,788              11,005              11,078
 5/89             10,944              11,344              11,349
 6/89             11,109              11,739              11,619
 7/89             11,252              12,061              11,818
 8/89             11,134              11,780              11,683
 9/89             11,166              11,827              11,735
10/89             11,395              12,153              11,980
11/89             11,501              12,286              12,102
12/89             11,584              12,288              12,158
 1/90             11,370              12,106              12,043
 2/90             11,429              12,100              12,089
 3/90             11,411              12,105              12,105
 4/90             11,220              11,956              11,992
 5/90             11,616              12,316              12,329
 6/90             11,830              12,518              12,512
 7/90             12,036              12,716              12,705
 8/90             11,872              12,505              12,594
 9/90             11,969              12,632              12,691
10/90             12,146              12,861              12,820
11/90             12,382              13,162              13,086
12/90             12,593              13,385              13,290
 1/91             12,797              13,540              13,448
 2/91             12,892              13,599              13,534
 3/91             12,941              13,648              13,618
 4/91             13,073              13,796              13,753
 5/91             13,169              13,861              13,834
 6/91             13,091              13,819              13,839
 7/91             13,361              13,997              14,044
 8/91             13,680              14,355              14,323
 9/91             14,065              14,733              14,597
10/91             14,274              14,888              14,781
11/91             14,424              15,076              14,905
12/91             14,985              15,680              15,290
 1/92             14,431              15,306              15,075
 2/92             14,539              15,386              15,186
 3/92             14,361              15,255              15,097
 4/92             14,499              15,368              15,222
 5/92             14,936              15,692              15,482
 6/92             15,184              15,989              15,697
 7/92             15,362              16,457              15,910
 8/92             15,556              16,670              16,078
 9/92             15,692              16,985              16,230
10/92             15,243              16,667              16,006
11/92             15,270              16,559              16,026
12/92             15,641              16,863              16,258
 1/93             16,030              17,330              16,544
 2/93             16,231              17,741              16,757
 3/93             16,300              17,825              16,822
 4/93             16,376              17,980              16,907
 5/93             16,378              17,948              16,943
 6/93             16,798              18,407              17,192
 7/93             16,985              18,450              17,275
 8/93             17,327              18,894              17,458
 9/93             17,288              19,027              17,463
10/93             17,352              19,049              17,508
11/93             17,074              18,799              17,368
12/93             17,212              18,883              17,481
 1/94             17,508              19,169              17,669
 2/94             16,975              18,662              17,424
 3/94             16,297              18,139              16,928
 4/94             15,919              17,961              16,658
 5/94             15,861              17,963              16,621
 6/94             15,711              17,900              16,582
 7/94             16,126              18,242              16,843
 8/94             16,142              18,287              16,876
 9/94             15,694              17,964              16,637
10/94             15,597              17,903              16,572
11/94             15,500              17,840              16,517
12/94             15,647              17,978              16,632
 1/95             16,001              18,353              16,939
 2/95             16,524              18,863              17,342
 3/95             16,665              18,965              17,412
 4/95             16,941              19,273              17,636
 5/95             17,705              20,224              18,194
 6/95             17,684              20,408              18,292
 7/95             17,641              20,281              18,286
 8/95             17,837              20,547              18,473
 9/95             18,028              20,773              18,626
10/95             18,225              21,117              18,804
11/95             18,488              21,518              19,036
12/95             18,750              21,846              19,279
 1/96             18,869              21,999              19,392
 2/96             18,498              21,441              19,143
 3/96             18,413              21,203              19,042
 4/96             18,268              20,982              18,950
 5/96             18,229              20,878              18,869
 6/96             18,565              21,191              19,091
 7/96             18,589              21,220              19,145
 8/96             18,567              21,137              19,127
 9/96             18,926              21,556              19,430
10/96             19,418              22,113              19,828
11/96             19,782              22,599              20,131
12/96             19,543              22,239              19,981
 1/97             19,579              22,262              20,086
 2/97             19,616              22,245              20,135
 3/97             19,278              21,921              19,930
 4/97             19,711              22,299              20,233
 5/97             19,859              22,512              20,401
 6/97             20,143              22,784              20,631
 7/97             20,832              23,554              21,085
 8/97             20,576              23,222              20,968
 9/97             20,913              23,635              21,225


** An unmanaged index, that includes no expenses or transaction charges, of all
U.S. Treasury bonds that have maturities of five to 10 years.

+  The average total return, not including sales charges, of similar funds as
characterized by Lipper Analytical Services.

- --------------------------------------------------------------------------------
Average Annualized Total Returns
Includes 2% maximum sales charge++


One Year                                                                 8.28%
- ------------------------------------------------------------------------------
Five Year                                                                5.48%
- ------------------------------------------------------------------------------
Ten Year                                                                 8.35%
- ------------------------------------------------------------------------------
Since Inception (3/16/87)                                                7.24%
- ------------------------------------------------------------------------------

* PLEASE REMEMBER, YOU COULD LOSE MONEY WITH THIS INVESTMENT. 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. Neither safety of principal nor stability of
income is guaranteed. During most periods, the fund's advisor waived or paid
certain expenses and/or the fund's distributor voluntarily waived certain 12b-1
fees. Without waivers, returns would have been lower.

All fund and benchmark returns include reinvested distributions.

++ Effective February 18, 1997, the fund's maximum sales charge was changed from
4% to 2%.


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


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

                                            4  1997 Annual Report - Income Funds
<PAGE>

GOVERNMENT INCOME FUND (CONTINUED)
- --------------------------------------------------------------------------------

[PHOTO]
DAVID STEELE
shares responsibility for the management of Government Income Fund. He has 18
years of financial experience.
- --------------------------------------------------------------------------------

WE MADE SEVERAL DECISIONS REGARDING EFFECTIVE DURATION THAT HAD A FAVORABLE
IMPACT ON PERFORMANCE. Our decision to extend the fund's average effective
duration in late April helped performance, as interest rates trended lower
through July. The decline in rates was due to key reports that showed the
economy was slowing as well as the Federal Reserve Board's decision to leave
short-term interest rates unchanged following its July Federal Open Market
Committee meeting. The announcement came at a time when economists were
generally divided on whether the Fed would raise rates to keep inflation
subdued. In late July, we shortened the fund's duration to help protect
shareholder capital in anticipation of higher interest rates. This strategy also
helped performance as stronger-than-expected economic reports in August caused
rates to edge higher.

THE FUND'S PORTFOLIO INCLUDED A WIDE VARIETY OF INVESTMENT VEHICLES THROUGHOUT
THE PERIOD. On September 30, 1997, approximately 82% of the fund's total assets
were invested in U.S. agency mortgage-backed securities. Mortgage-backed
securities include bonds issued by the Government National Mortgage Association
(Ginnie Maes), Federal National Mortgage Association (Fannie Maes) and Federal
Home Loan Mortgage Corporation (Freddie Mac). The fund had 11% in U.S. Treasury
notes and 4% in U.S. agency debentures. We continued to maintain a modest 5% to
10% position in the dollar-roll program.*** This program allows the fund to
generate fee income by committing to pay for securities in the future at today's
price. The dollar-roll program tends to increase the number of assets exposed to
interest rate risk, and, therefore, increase volatility of the fund's net asset
value. Our position in the program is modest compared to the past, as the
current interest rate environment makes participation less compelling.


- --------------------------------------------------------------------------------
PORTFOLIO COMPOSITION
- --------------------------------------------------------------------------------
As a percentage of total assets on September 30, 1997


[EDGAR REPRESENTATION OF CHART]

U.S. Agency Inverse Interest-Only Securities                                1%
- --------------------------------------------------------------------------------
U.S. Agency Fixed Rate Mortgage-Backed Securities                          60%
- --------------------------------------------------------------------------------
U.S. Agency Z-Bond Securities                                              14%
- --------------------------------------------------------------------------------
U.S. Agency Debentures                                                      4%
- --------------------------------------------------------------------------------
U.S. Treasury Securities                                                   11%
- --------------------------------------------------------------------------------
U.S. Agency CMOs - Fixed                                                    6%
- --------------------------------------------------------------------------------
U.S. Agency Inverse Floating Rate Securities                                1%
- --------------------------------------------------------------------------------
Short-Term                                                                  2%
- --------------------------------------------------------------------------------
Other Assets                                                                1%
- --------------------------------------------------------------------------------


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


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

                                            5  1997 Annual Report - Income Funds
<PAGE>

GOVERNMENT INCOME FUNDS (CONTINUED)
- --------------------------------------------------------------------------------

LOOKING AHEAD, BONDS MAY COME UNDER PRESSURE NEAR TERM IF THE ECONOMY CONTINUES
TO SHOW ROBUST GROWTH, BUT WE BELIEVE THE LONGER-TERM OUTLOOK IS FAVORABLE
BECAUSE INFLATION IS STILL BENIGN. Moreover, real interest rates on bonds, which
equal current yields minus inflation, are at historically high levels. Given
this scenario, we intend to maintain our neutral effective duration compared to
the fund's benchmark in the coming weeks. Should yields move higher, we may
extend the fund's effective duration to enhance its long-term income-producing
potential.

Thank you for your investment in Government Income Fund. We appreciate the
opportunity to serve your investment needs.

Sincerely,



/s/ Bruce Salvog                  /s/ David Steele

Bruce Salvog                      David Steele
Portfolio Manager                 Portfolio Manager


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

                                            6  1997 Annual Report - Income Funds
<PAGE>

INTERMEDIATE BOND FUND
- --------------------------------------------------------------------------------

[PHOTO]
WORTH BRUNTJEN
shares responsibility for the management of Intermediate Bond Fund. Bruntjen
will be leaving Piper Capital Management on January 1, 1998, and will no longer
be part of the fund's management team.
- --------------------------------------------------------------------------------


November 13, 1997
- --------------------------------------------------------------------------------

DEAR SHAREHOLDERS:

FOR THE ONE-YEAR PERIOD ENDED SEPTEMBER 30, 1997, INTERMEDIATE BOND FUND 
CLASS A RECORDED AN 8.29%* TOTAL RETURN WITH ALL DISTRIBUTIONS REINVESTED, 
BUT NOT INCLUDING THE FUND'S SALES CHARGE. This compares to 8.87% gains from 
both the Lehman Brothers Intermediate Aggregate Index** and the Lipper 
Intermediate Investment-Grade Debt Funds Average.+ We attribute the fund's 
underperformance compared to the Lipper average to shorter duration*** bonds 
held by the fund. The targeted effective duration of this fund is shorter 
than that of the average fund in the Lipper category. This means that the 
fund is less sensitive to changing interest rates than the average fund in 
its category.

EARLY IN THE PERIOD, THE FUND HAD A SUBSTANTIAL POSITION IN U.S. AGENCY FIXED-
RATE, MORTGAGE-BACKED SECURITIES, WHICH GENERALLY PERFORM BETTER THAN OTHER
FIXED INCOME SECURITIES IN PERIODS OF INCREASING INTEREST RATES, AS WE SAW EARLY
IN 1997. Midway through the year, the fund reduced its position in
mortgage-backed securities and began to increase its exposure to corporate
bonds. This decision


- --------------------------------------------------------------------------------
PERFORMANCE THROUGH SEPTEMBER 30, 1997*
- --------------------------------------------------------------------------------
Growth of $10,000 Invested Since Inception

              Intermediate                              Lipper
                Bond Fund                            Intermediate
          class A, reflects      Lehman Brothers   Investment-Grade
              the fund's         Intermediate             Debt
            2% sales charge++  Aggregate Index**    Funds Average+

 7/88               9,800              10,000              10,000
 7/88               9,761              10,000              10,000
 8/88               9,766              10,017              10,012
 9/88               9,958              10,217              10,193
10/88              10,102              10,385              10,341
11/88               9,987              10,275              10,248
12/88               9,982              10,263              10,264
 1/89              10,099              10,395              10,384
 2/89              10,043              10,344              10,340
 3/89              10,027              10,378              10,364
 4/89              10,220              10,587              10,545
 5/89              10,477              10,837              10,758
 6/89              10,736              11,108              11,017
 7/89              10,912              11,344              11,220
 8/89              10,778              11,197              11,083
 9/89              10,848              11,259              11,138
10/89              11,082              11,504              11,357
11/89              11,219              11,619              11,438
12/89              11,297              11,664              11,460
 1/90              11,224              11,587              11,350
 2/90              11,286              11,639              11,387
 3/90              11,292              11,659              11,392
 4/90              11,252              11,595              11,307
 5/90              11,522              11,889              11,580
 6/90              11,713              12,058              11,741
 7/90              11,918              12,242              11,897
 8/90              11,865              12,162              11,785
 9/90              11,965              12,258              11,849
10/90              12,091              12,399              11,945
11/90              12,313              12,614              12,159
12/90              12,478              12,801              12,318
 1/91              12,717              12,955              12,445
 2/91              12,846              13,061              12,560
 3/91              12,964              13,150              12,655
 4/91              13,095              13,285              12,802
 5/91              13,177              13,379              12,885
 6/91              13,196              13,390              12,889
 7/91              13,407              13,568              13,037
 8/91              13,658              13,822              13,315
 9/91              13,975              14,068              13,574
10/91              14,165              14,256              13,719
11/91              14,355              14,396              13,850
12/91              14,688              14,715              14,268
 1/92              14,560              14,570              14,083
 2/92              14,715              14,658              14,152
 3/92              14,763              14,589              14,098
 4/92              14,887              14,724              14,189
 5/92              15,156              14,965              14,445
 6/92              15,427              15,169              14,658
 7/92              15,925              15,405              15,003
 8/92              16,186              15,576              15,140
 9/92              16,448              15,753              15,336
10/92              16,256              15,574              15,110
11/92              16,292              15,555              15,080
12/92              16,481              15,761              15,303
 1/93              17,129              16,030              15,621
 2/93              17,721              16,247              15,926
 3/93              17,970              16,325              16,009
 4/93              18,159              16,439              16,130
 5/93              18,243              16,451              16,131
 6/93              18,589              16,660              16,425
 7/93              18,798              16,710              16,521
 8/93              19,024              16,906              16,825
 9/93              19,251              16,956              16,885
10/93              19,290              17,003              16,955 
11/93              19,060              16,932              16,815 
12/93              19,054              17,030              16,911 
 1/94              19,210              17,211              17,126
 2/94              18,887              17,008              16,819
 3/94              17,446              16,672              16,404
 4/94              15,224              16,556              16,172
 5/94              14,505              16,587              16,114
 6/94              14,172              16,576              16,068
 7/94              14,577              16,847              16,322
 8/94              14,690              16,900              16,371
 9/94              14,120              16,716              16,179
10/94              13,704              16,712              16,146
11/94              13,445              16,645              16,092
12/94              13,653              16,729              16,171
 1/95              13,844              17,038              16,422
 2/95              14,315              17,419              16,768
 3/95              14,511              17,512              16,870
 4/95              14,822              17,740              17,109
 5/95              15,652              18,282              17,711
 6/95              15,854              18,398              17,820
 7/95              15,747              18,411              17,791
 8/95              16,111              18,587              18,000
 9/95              16,400              18,731              18,171
10/95              16,552              18,925              18,396
11/95              16,768              19,162              18,655
12/95              17,010              19,376              18,897
 1/96              17,107              19,536              19,030
 2/96              16,988              19,332              18,725
 3/96              16,933              19,243              18,605
 4/96              16,856              19,181              18,509
 5/96              16,801              19,152              18,481
 6/96              17,014              19,377              18,692
 7/96              17,083              19,439              18,743
 8/96              17,087              19,449              18,738
 9/96              17,331              19,740              19,049
10/96              17,652              20,103              19,437
11/96              17,858              20,377              19,762
12/96              17,760              20,257              19,604
 1/97              17,843              20,362              19,673
 2/97              17,902              20,411              19,723
 3/97              17,752              20,252              19,537
 4/97              17,979              20,521              19,782
 5/97              18,114              20,701              19,959
 6/97              18,298              20,911              20,183
 7/97              18,673              21,322              20,689
 8/97              18,595              21,237              20,529
 9/97              18,768              21,492              20,810


** An unmanaged index, that includes no expenses or transaction charges,
consisting of one- to 10-year government and corporate securities and all of the
mortgage- and asset-backed securities in the Lehman Brothers Aggregate Index.

+  The average total return, not including sales charges, of similar funds as
characterized by Lipper Analytical Services.


Class A Average Annualized Total Returns
Includes 2% maximum sales charge++

One Year                                                                  6.13%
- --------------------------------------------------------------------------------
Five Year                                                                 2.26%
- --------------------------------------------------------------------------------
Since Inception (7/11/88)                                                 7.06%
- --------------------------------------------------------------------------------

Class Y Cumulative Total Returns
Sales charges do not apply to class Y shares.

Since Inception (2/18/97)                                                 4.58%
- --------------------------------------------------------------------------------

* PLEASE REMEMBER, YOU COULD LOSE MONEY WITH THIS INVESTMENT. 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. Neither safety of principal nor stability of
income is guaranteed. During most periods, the fund's advisor waived or paid
certain expenses and/or the fund's distributor voluntarily waived certain 12b-1
fees. Without waivers, the class A returns would have been lower.

All fund and benchmark returns include reinvested distributions.

++ Effective September 12 1996, the fund's maximum sales charge was changed from
1.5% to 2%.

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


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

                                            7  1997 Annual Report - Income Funds
<PAGE>

INTERMEDIATE BOND FUND (CONTINUED)
- --------------------------------------------------------------------------------

[PHOTO]
BRUCE SALVOG
shares responsibility for the management of Intermediate Bond Fund. He has 27
years of financial experience.
- --------------------------------------------------------------------------------

proved beneficial to the fund as corporate bonds recorded attractive investment
results compared to other fixed income securities. Late in the period, the fund
also benefited from its position in discount*** and seasoned*** premium
mortgage-backed securities. Seasoned premium mortgage-backed securities provide
relatively high predictable income, while discount mortgage securities tend to
appreciate more than other mortgage-backed securities when interest rates
decline.

THE FUND'S DURATION STRATEGY SERVED SHAREHOLDERS WELL ON SEVERAL OCCASIONS 
DURING THE PERIOD. In March, our decision to maintain a lower effective 
duration compared to that of the fund's benchmark*** helped protect 
shareholder capital as interest rates rose. The rise in rates was largely 
precipitated by a 0.25% interest rate increase by the Federal Reserve Board 
on March 25. It was the Fed's first rate hike in more than two years. From 
late April through July, the fund's effective duration was longer than that 
of its benchmark, which helped performance as interest rates declined on news 
that inflation was slowing. Also helping the market in July was the Fed's 
announcement that it would not raise interest rates following weeks of 
speculation by many economists that a change in monetary policy was likely. 
The market received an additional boost thanks to favorable comments that Fed 
Chairman Alan Greenspan made about the stock market during testimony before 
the Senate. In late July, our decision to shorten the fund's effective 
duration contributed to its investment results following the release of 
stronger-than-expected economic data in August and a modest rise in interest 
rates.

- --------------------------------------------------------------------------------
PORTFOLIO COMPOSITION
- --------------------------------------------------------------------------------
As a percentage of total assets on September 30, 1997


[EDGAR REPRESENTATION OF CHART]

U.S. Agency Debentures                                                       9%
- --------------------------------------------------------------------------------
U.S. Treasury Securities                                                    27%
- --------------------------------------------------------------------------------
U.S. Agency Fixed Rate Mortgage-Backed Securities                           27%
- --------------------------------------------------------------------------------
Corporate Bonds                                                             27%
- --------------------------------------------------------------------------------
Asset-Backed Securities                                                      6%
- --------------------------------------------------------------------------------
Short-Term                                                                   3%
- --------------------------------------------------------------------------------
Other Assets                                                                 1%
- --------------------------------------------------------------------------------

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


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

                                            8  1997 Annual Report - Income Funds
<PAGE>

INTERMEDIATE BOND FUND (CONTINUED)
- --------------------------------------------------------------------------------

[PHOTO]
DAVID STEELE
shares responsibility for the management of Intermediate Bond Fund. He has 18
years of financial experience.
- --------------------------------------------------------------------------------

WE CONTINUE TO HAVE A FAVORABLE OUTLOOK FOR THE FUND. Although the economy is
robust and the Fed may raise short-term interest rates in the coming months due
to the current strength of the economy, we believe inflation is still under
control. Inflation-adjusted yields remain at historically attractive levels. We
intend to maintain our overweighting*** in corporate bonds and our exposure to
discount and seasoned premium mortgage-backed securities. Should rates move
appreciably higher near-term, we intend to increase the fund's effective
duration to secure higher yields.

Thank you for your investment in Intermediate Bond Fund. We appreciate the
opportunity to help you pursue your investment goals.


Sincerely,



/s/ Worth Bruntjen           /s/ Bruce Salvog              /s/ David Steele

Worth Bruntjen               Bruce Salvog                  David Steele
Portfolio Manager            Portfolio Manager             Portfolio Manager

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


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

                                            9  1997 Annual Report - Income Funds
<PAGE>

ADJUSTABLE RATE MORTGAGE SECURITIES FUND
- --------------------------------------------------------------------------------

[PHOTO]
TOM MCGLINCH, CFA
shares responsibility for the management of Adjustable Rate Mortgage Securities
Fund. He has 16 years of financial experience.
- --------------------------------------------------------------------------------


November 13, 1997
- --------------------------------------------------------------------------------

DEAR SHAREHOLDERS:

ADJUSTABLE RATE MORTGAGE SECURITIES FUND PROVIDED A TOTAL RETURN OF 7.16%* 
FOR THE YEAR ENDED SEPTEMBER 30, 1997. This return reflects reinvested 
distributions but not the fund's sales charge. Your fund's performance 
surpassed the Lipper Adjustable Rate Mortgage Funds Average+ return of 6.46% 
during the period. The fund's market-based benchmark,*** the Lehman Brothers 
Adjustable Rate Mortgage Index,** returned 8.03%. The fund's strong 
performance compared to Lipper was primarily due to its allocation to fixed 
rate assets and its high income. In addition, we believe the fund had a 
longer effective duration*** than that of the average fund in the Lipper 
average.

DURING THE PERIOD, WE FOCUSED ON SECURITIES THAT OFFER ATTRACTIVE CURRENT INCOME
RATHER THAN POTENTIAL PRICE APPRECIATION, AND THAT IS THE PRIMARY REASON THE
FUND UNDERPERFORMED ITS BENCHMARK INDEX. To maintain an attractive current
yield, we avoided new adjustable rate mortgage securities (ARMs) with lower
"teaser" rates in favor of securities whose coupons have reset to reflect
prevailing interest rates.

SHORT-TERM INTEREST RATES REMAINED IN A RELATIVELY NARROW RANGE FOR THE PERIOD,
WITH THE TWO-YEAR TREASURY TRADING BETWEEN 5.5% AND 6.5%. This allowed the fund
to maintain an attractive yield and stable net asset value. If rates had jumped
significantly, our ARM securities' periodic rate caps may have prevented us from
taking advantage of the higher rates. Conversely, a sharp drop in rates might
have hurt our securities' prices with market worries about homeowners prepaying
ARMs to refinance at a lower rate.


- --------------------------------------------------------------------------------
PERFORMANCE THROUGH SEPTEMBER 30, 1997*
- --------------------------------------------------------------------------------
Growth of $10,000 Invested Since Inception

             Adjustable Rate
               Mortgage
           Securities Fund,                             Lipper
             reflects the       Lehman Brothers     Adjustable Rate
                fund's 2%       Adjustable Rate         Mortgage
            sales charge++     Mortgage Index**      Funds Average+

 1/92               9,800              10,000              10,000
 1/92               9,790              10,000              10,000
 2/92               9,780               9,957              10,041
 3/92               9,707               9,918              10,060
 4/92               9,799              10,026              10,115
 5/92               9,953              10,117              10,184
 6/92              10,087              10,222              10,253
 7/92              10,149              10,267              10,279
 8/92              10,338              10,354              10,330
 9/92              10,390              10,410              10,377
10/92              10,314              10,325              10,369
11/92              10,292              10,340              10,389
12/92              10,312              10,437              10,446
 1/93              10,496              10,544              10,496
 2/93              10,632              10,636              10,554
 3/93              10,681              10,684              10,583
 4/93              10,738              10,747              10,627
 5/93              10,818              10,773              10,648
 6/93              10,888              10,886              10,710
 7/93              10,935              10,936              10,747
 8/93              10,982              11,002              10,795
 9/93              11,041              11,004              10,819
10/93              11,112              11,009              10,836
11/93              11,115              10,979              10,832
12/93              11,148              11,061              10,857
 1/94              11,321              11,135              10,899
 2/94              11,110              11,100              10,896
 3/94              10,790              11,012              10,849
 4/94              10,727              10,954              10,801
 5/94              10,656              10,945              10,772
 6/94              10,620              10,969              10,783
 7/94              10,656              11,036              10,818
 8/94              10,644              11,090              10,827
 9/94              10,608              11,044              10,795
10/94              10,535              11,036              10,769 
11/94              10,477              11,005              10,694 
12/94              10,419              11,062              10,630 
 1/95              10,631              11,246              10,673
 2/95              10,783              11,472              10,766
 3/95              10,885              11,527              10,833
 4/95              10,938              11,649              10,898
 5/95              11,054              11,838              11,022
 6/95              11,121              11,886              11,018
 7/95              11,174              11,929              11,045
 8/95              11,222              12,002              11,108
 9/95              11,299              12,087              11,144
10/95              11,365              12,162              11,155
11/95              11,434              12,265              11,229
12/95              11,519              12,358              11,278
 1/96              11,603              12,445              11,351
 2/96              11,632              12,474              11,360
 3/96              11,686              12,496              11,386
 4/96              11,712              12,512              11,422
 5/96              11,753              12,528              11,463
 6/96              11,823              12,617              11,533
 7/96              11,880              12,679              11,579
 8/96              11,940              12,755              11,630
 9/96              12,042              12,854              11,711
10/96              12,161              13,000              11,813
11/96              12,253              13,125              11,889
12/96              12,297              13,167              11,918
 1/97              12,370              13,243              12,008
 2/97              12,431              13,317              12,064
 3/97              12,460              13,343              12,096
 4/97              12,533              13,447              12,181
 5/97              12,610              13,530              12,250
 6/97              12,703              13,619              12,325
 7/97              12,796              13,737              12,418
 8/97              12,811              13,772              12,449
 9/97              12,904              13,885              12,499


** An unmanaged index, which includes no expenses or transaction charges, of
U.S. agency adjustable rate mortgage securities.

+  The average total return, not including sales charges, of similar funds as
characterized by Lipper Analytical Services.


Average Annualized Total Returns
Includes 2% maximum sales charge++

One Year                                                                 5.02%
- --------------------------------------------------------------------------------
Five Year                                                                4.01%
- --------------------------------------------------------------------------------
Since Inception (1/30/92)                                                4.60%
- --------------------------------------------------------------------------------

* PLEASE REMEMBER, YOU COULD LOSE MONEY WITH THIS INVESTMENT. 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. Neither safety of principal nor stability of
income is guaranteed. Performance prior to September 1, 1995, reflect historical
net asset value performance of American Adjustable Rate Term Trust 1998, the
fund's predecessor for financial reporting purposes. During most periods, the
fund's advisor waived or paid certain expenses and/or the fund's distributor
voluntarily waived certain 12b-1 fees. Without waivers, returns would have been
lower.

All fund and benchmark returns include reinvested distributions.

++ Effective February 18, 1997, the fund's maximum sales charge was changed from
1.5% to 2%.

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


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

                                           10  1997 Annual Report - Income Funds
<PAGE>

ADJUSTABLE RATE MORTGAGE SECURITIES FUND  (CONTINUED)
- --------------------------------------------------------------------------------

[PHOTO]
WAN-CHONG KUNG, CFA
shares responsibility for the management of Adjustable Rate Mortgage Securities
Fund. She has five years of financial experience.
- --------------------------------------------------------------------------------

OVER THE PERIOD, WE INCREASED THE FUND'S HOLDINGS OF FIXED RATE MORTGAGE
SECURITIES TO BENEFIT FROM FALLING INTEREST RATES. Fixed rate securities are
more sensitive than ARMs to interest rate movements, and when rates fall, the
prices of such securities generally rise (the reverse is also true). We
increased our fixed rate allocation from about 17% at the start of the period to
22% on September 30, and because rates came down during that time, our strategy
paid off. We believe the larger percentage of fixed rate securities is one
reason we outperformed many of our peers during the period.

GOING FORWARD, WE EXPECT FAVORABLE ECONOMIC CONDITIONS TO CONTINUE, BUT WE ARE
WATCHING CLOSELY FOR SIGNS OF CHANGE. Low unemployment and growing incomes
suggest that the economy will continue to grow. Inflation has remained low and
there are signs that pent-up demand in key economic sectors such as housing and
autos has been met. However, we think the Federal Reserve may be more likely to
raise rates rather than lower them, though such a move may not occur right away.
We will continue to monitor events and manage your fund accordingly.

Thank you for investing in Adjustable Rate Mortgage Securities Fund. We are
pleased to have provided you with a competitive return for the period, and we
will continue to deliver high-quality investment management and service.


Sincerely,



/s/ Tom McGlinch                       /s/ Wan-Chong Kung

Tom McGlinch                           Wan-Chong Kung
Portfolio Manager                      Portfolio Manager


- --------------------------------------------------------------------------------
PORTFOLIO COMPOSITION
- --------------------------------------------------------------------------------
As a percentage of total assets on September 30, 1997


[EDGAR REPRESENTATION OF CHART]

U.S. Agency Fixed Rate Mortgage-Backed Securities                          22%
- --------------------------------------------------------------------------------
U.S. Agency Adjustable Rate Mortgage-Backed Securities                     63%
- --------------------------------------------------------------------------------
U.S. Treasury Securities                                                    2%
- --------------------------------------------------------------------------------
Private Adjustable Rate Mortgage-Backed Securities                          9%
- --------------------------------------------------------------------------------
Short-Term                                                                  3%
- --------------------------------------------------------------------------------
Other Assets                                                                1%
- --------------------------------------------------------------------------------


U.S. agency mortgage-backed ARM securities include 9% of total assets in ARM
securities with coupons that reset in more than four years. All other ARM
security coupons in the fund reset in 12 months or less.


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

                                           11  1997 Annual Report - Income Funds
<PAGE>
            Financial Statements
 
- --------------------------------------------------------------------------------
                      STATEMENTS OF ASSETS AND LIABILITIES  September 30, 1997
 ................................................................................
 
<TABLE>
<CAPTION>
                                                                                               ADJUSTABLE RATE
                                                                                                   MORTGAGE
                                                               GOVERNMENT      INTERMEDIATE       SECURITIES
                                                               INCOME FUND      BOND FUND            FUND
                                                              -------------   --------------   ----------------
<S>                                                           <C>             <C>              <C>
ASSETS:
Investments in securities at market value* (including
  repurchase agreements of $1,719,000, $1,999,000 and
  $5,814,000, respectively) (note 2) .......................  $ 72,194,451    $  78,214,027      $ 184,450,033
Cash in bank on demand deposit .............................        24,498           26,726             24,689
Receivable for investment securities sold ..................        24,219               --                 --
Receivable for fund shares sold ............................       243,213           17,633              1,870
Principal receivable on mortgage securities ................            --               --            448,616
Accrued interest receivable ................................       466,893        1,002,108          1,216,077
                                                              -------------   --------------   ----------------
  Total assets .............................................    72,953,274       79,260,494        186,141,285
                                                              -------------   --------------   ----------------
 
LIABILITIES:
Dividends payable to shareholders ..........................       350,352          325,177            889,165
Payable for investment securities purchased on a when-issued
  basis (note 2) ...........................................     4,996,094               --                 --
Payable for fund shares redeemed ...........................       291,737          516,953            477,201
Accrued investment management fee ..........................        27,806           19,738             53,992
Accrued distribution and service fees ......................        18,908           11,881             23,139
                                                              -------------   --------------   ----------------
  Total liabilities ........................................     5,684,897          873,749          1,443,497
                                                              -------------   --------------   ----------------
  Net assets applicable to outstanding capital stock .......  $ 67,268,377    $  78,386,745      $ 184,697,788
                                                              -------------   --------------   ----------------
                                                              -------------   --------------   ----------------
 
COMPOSITION OF NET ASSETS:
Capital stock and additional paid-in capital ...............  $ 80,635,273    $ 353,636,682      $ 329,924,909
Distributions in excess of net investment income ...........            --         (125,225)                --
Accumulated net realized loss on investments ...............   (16,129,109)    (276,210,068)      (146,955,780)
Unrealized appreciation of investments .....................     2,762,213        1,085,356          1,728,659
                                                              -------------   --------------   ----------------
 
  Total - representing net assets applicable to outstanding
    capital stock ..........................................  $ 67,268,377    $  78,386,745      $ 184,697,788
                                                              -------------   --------------   ----------------
                                                              -------------   --------------   ----------------
 
  * Investments in securities at identified cost ...........  $ 69,432,238    $  77,128,671      $ 182,721,374
                                                              -------------   --------------   ----------------
                                                              -------------   --------------   ----------------
 
NET ASSET VALUE AND OFFERING PRICE:
 
CLASS A (NOTE 1):
Net assets .................................................  $ 67,268,377    $  64,401,442      $ 184,697,788
Shares outstanding (authorized 10 billion, four billion and
  10 billion shares, respectively, of $0.01 par value) .....     7,340,354        8,391,288         22,661,426
Net asset value ............................................  $       9.16    $        7.67      $        8.15
Maximum offering price per share (net asset value plus 2% of
  offering price) ..........................................  $       9.35    $        7.83      $        8.32
CLASS Y:
Net assets .................................................  $         --    $  13,985,303      $          --
Shares outstanding (authorized one billion shares of $0.01
  par value) ...............................................            --        1,821,360                 --
Net asset value and offering price per share ...............  $         --    $        7.68      $          --
</TABLE>
 
                      SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- --------------------------------------------------------------------------------
 
12                                     1997 Annual Report - Income Funds
<PAGE>
                     Financial Statements  (continued)
- --------------------------------------------------------------------------------
 
                      STATEMENTS OF OPERATIONS  For the Year Ended September 30,
                      1997
 ................................................................................
 
<TABLE>
<CAPTION>
                                                                                            ADJUSTABLE
                                                                                               RATE
                                                                                             MORTGAGE
                                                              GOVERNMENT    INTERMEDIATE    SECURITIES
                                                              INCOME FUND    BOND FUND         FUND
                                                              -----------   -----------   --------------
<S>                                                           <C>           <C>           <C>
INCOME:
Interest ...................................................  $5,567,190    $6,803,262      $14,568,689
Fee income (note 2) ........................................      96,491            --               --
                                                              -----------   -----------   --------------
 
  Total income .............................................   5,663,681     6,803,262       14,568,689
                                                              -----------   -----------   --------------
 
EXPENSES (NOTE 5):
Investment management fee ..................................     377,386       303,718          766,709
Distribution and service fees:
  CLASS A ..................................................     377,385       280,844          327,317
  CLASS Y ..................................................          --            --               --
Custodian and accounting fees ..............................      79,052        93,074          212,249
Transfer agent and dividend disbursing agent fees ..........      62,155        55,019          262,590
Registration fees ..........................................      20,296        33,120           23,635
Reports to shareholders ....................................      32,143        66,139           77,233
Directors' fees ............................................       7,968         7,968           18,158
Audit and legal fees .......................................      40,063        53,627           57,467
Other expenses .............................................      18,657        23,964           34,284
                                                              -----------   -----------   --------------
  Total expenses ...........................................   1,015,105       917,473        1,779,642
    Less Class A expenses waived by the distributor ........    (121,393)      (74,832)              --
                                                              -----------   -----------   --------------
 
  Net expenses before expenses paid indirectly .............     893,712       842,641        1,779,642
    Less expenses paid indirectly ..........................         (61)       (1,396)            (506)
                                                              -----------   -----------   --------------
 
  Total net expenses .......................................     893,651       841,245        1,779,136
                                                              -----------   -----------   --------------
 
  Net investment income ....................................   4,770,030     5,962,017       12,789,553
                                                              -----------   -----------   --------------
 
NET REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS:
Net realized gain (loss) on investments (note 3) ...........     851,876       281,651         (392,095)
Net realized loss on closed futures contracts ..............    (153,975)           --               --
                                                              -----------   -----------   --------------
 
  Net realized gain (loss) on investments ..................     697,901       281,651         (392,095)
Net change in unrealized appreciation or depreciation of
  investments ..............................................   2,063,487     2,015,896        3,059,243
                                                              -----------   -----------   --------------
 
  Net gain on investments ..................................   2,761,388     2,297,547        2,667,148
                                                              -----------   -----------   --------------
 
    Net increase in net assets resulting from operations ...  $7,531,418    $8,259,564      $15,456,701
                                                              -----------   -----------   --------------
                                                              -----------   -----------   --------------
</TABLE>
 
                      SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- --------------------------------------------------------------------------------
 
13                                     1997 Annual Report - Income Funds
<PAGE>
                     Financial Statements  (continued)
- --------------------------------------------------------------------------------
 
                            STATEMENTS OF CHANGES IN NET ASSETS
 ................................................................................
<TABLE>
<CAPTION>
                                                                         GOVERNMENT                       INTERMEDIATE
                                                                        INCOME FUND                         BOND FUND
                                                              --------------------------------   -------------------------------
                                                                Year Ended        Year Ended       Year Ended       Year Ended
                                                                  9/30/97          9/30/96          9/30/97          9/30/96
                                                              ---------------   --------------   --------------   --------------
<S>                                                           <C>               <C>              <C>              <C>
OPERATIONS:
Net investment income ......................................   $    4,770,030   $    6,314,212   $    5,962,017   $   15,762,040
Net realized gain (loss) on investments ....................          697,901           85,416          281,651      (12,736,864)
Net change in unrealized appreciation or depreciation of
  investments ..............................................        2,063,487       (1,752,271)       2,015,896       10,497,685
                                                              ---------------   --------------   --------------   --------------
 
  Net increase in net assets resulting from operations .....        7,531,418        4,647,357        8,259,564       13,522,861
                                                              ---------------   --------------   --------------   --------------
 
DISTRIBUTIONS TO SHAREHOLDERS:
CLASS A:
  From net investment income ...............................       (4,771,839)      (6,318,402)      (5,402,892)     (34,266,074)
CLASS Y:
  From net investment income ...............................               --               --         (559,127)              --
                                                              ---------------   --------------   --------------   --------------
  Total distributions ......................................       (4,771,839)      (6,318,402)      (5,962,019)     (34,266,074)
                                                              ---------------   --------------   --------------   --------------
 
CAPITAL SHARE TRANSACTIONS (NOTE 4):
CLASS A ....................................................      (19,319,777)     (20,364,506)     (73,660,708)    (162,043,566)
CLASS Y ....................................................               --               --       13,912,070               --
                                                              ---------------   --------------   --------------   --------------
  Decrease in net assets from capital share transactions ...      (19,319,777)     (20,364,506)     (59,748,638)    (162,043,566)
                                                              ---------------   --------------   --------------   --------------
  Total decrease in net assets .............................      (16,560,198)     (22,035,551)     (57,451,093)    (182,786,779)
 
Net assets at beginning of period ..........................       83,828,575      105,864,126      135,837,838      318,624,617
                                                              ---------------   --------------   --------------   --------------
 
Net assets at end of period ................................   $   67,268,377   $   83,828,575   $   78,386,745   $  135,837,838
                                                              ---------------   --------------   --------------   --------------
                                                              ---------------   --------------   --------------   --------------
 
Undistributed (distributions in excess of) net investment
  income ...................................................   $           --   $        1,809   $     (125,225)  $     (125,223)
                                                              ---------------   --------------   --------------   --------------
                                                              ---------------   --------------   --------------   --------------
 
<CAPTION>
                                                                              ADJUSTABLE RATE
                                                                          MORTGAGE SECURITIES FUND
                                                              ------------------------------------------------
 
                                                                Year Ended      Month Ended       Year Ended
                                                                 9/30/97          9/30/96          8/31/96
                                                              --------------   --------------   --------------
<S>                                                           <C>              <C>              <C>
OPERATIONS:
Net investment income ......................................  $   12,789,553   $    1,272,222   $   24,706,910
Net realized gain (loss) on investments ....................        (392,095)         (68,233)      (2,674,311)
Net change in unrealized appreciation or depreciation of
  investments ..............................................       3,059,243          867,679        6,114,992
                                                              --------------   --------------   --------------
  Net increase in net assets resulting from operations .....      15,456,701        2,071,668       28,147,591
                                                              --------------   --------------   --------------
DISTRIBUTIONS TO SHAREHOLDERS:
CLASS A:
  From net investment income ...............................     (12,789,553)      (1,272,222)     (24,649,898)
CLASS Y:
  From net investment income ...............................              --               --               --
                                                              --------------   --------------   --------------
  Total distributions ......................................     (12,789,553)      (1,272,222)     (24,649,898)
                                                              --------------   --------------   --------------
CAPITAL SHARE TRANSACTIONS (NOTE 4):
CLASS A ....................................................     (80,802,728)      (7,914,495)    (142,855,401)
CLASS Y ....................................................              --               --               --
                                                              --------------   --------------   --------------
  Decrease in net assets from capital share transactions ...     (80,802,728)      (7,914,495)    (142,855,401)
                                                              --------------   --------------   --------------
  Total decrease in net assets .............................     (78,135,580)      (7,115,049)    (139,357,708)
Net assets at beginning of period ..........................     262,833,368      269,948,417      409,306,125
                                                              --------------   --------------   --------------
Net assets at end of period ................................  $  184,697,788   $  262,833,368   $  269,948,417
                                                              --------------   --------------   --------------
                                                              --------------   --------------   --------------
Undistributed (distributions in excess of) net investment
  income ...................................................  $           --   $           --   $           --
                                                              --------------   --------------   --------------
                                                              --------------   --------------   --------------
</TABLE>
 
                      SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.
 
- --------------------------------------------------------------------------------
 
14                                     1997 Annual Report - Income Funds
<PAGE>
             Notes to Financial Statements
- --------------------------------------------------------------------------------
 
(1) ORGANIZATION
 ................................
                      Piper Funds Inc. (Piper Funds) and Piper Funds Inc.-II
                      (Piper Funds II) are each registered under the Investment
                      Company Act of 1940 (as amended) as single, open-end
                      management investment companies. Piper Funds currently has
                      12 series, including Government Income Fund and
                      Intermediate Bond Fund. Each fund is classified as a
                      diversified series. Piper Funds II currently has one
                      series, Adjustable Rate Mortgage Securities Fund, which is
                      classified as a diversified series.
 
                      On September 1, 1995, four closed-end funds, American
                      Adjustable Rate Term Trust 1996 (BDJ), American Adjustable
                      Rate Term Trust 1997 (CDJ), American Adjustable Rate Term
                      Trust 1998 (DDJ) and American Adjustable Rate Term Trust
                      1999 (EDJ) merged into Adjustable Rate Mortgage Securities
                      Fund (ARMS Fund). DDJ is considered the surviving entity
                      for financial reporting purposes.
 
                      The articles of incorporation of Piper Funds and Piper
                      Funds II permit the boards of directors to create
                      additional series in the future.
 
                      Intermediate Bond Fund commenced offering Class Y shares
                      on February 18, 1997. All shares existing prior to that
                      date were classified as Class A shares. Key features of
                      each class are:
 
                      CLASS A:
                      - Subject to a front-end sales charge
 
                      - Subject to distribution and service fees
 
                      CLASS Y:
                      - Requires a minimum initial investment of $1 million
 
                      - No front-end or contingent deferred sales charges
 
                      - No distribution and service fees
 
                      The classes of shares of Intermediate Bond Fund have the
                      same rights and are identical in all respects except that
                      each class bears different distribution expenses, has
                      exclusive voting rights with respect to matters affecting
                      that class and has different exchange privileges.
                      Government Income Fund and Adjustable Rate Mortgage
                      Securities Fund each have a single class of shares, which
                      are shown as Class A in the financial statements.
 
                      Government Income Fund invests primarily in securities
                      issued or guaranteed as to payment of principal and
                      interest by the U.S. government, its agencies or
                      instrumentalities, including mortgage-backed securities.
 
                      Intermediate Bond Fund invests primarily in a broad range
                      of investment-quality debt securities.
 
                      Adjustable Rate Mortgage Securities Fund invests primarily
                      in adjustable rate mortgage securities.
 
- --------------------------------------------------------------------------------
 
15                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(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 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. Financial futures are valued at the last settlement
                      price established each day by the board of trade or
                      exchange on which they are traded.
 
                      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.
 
                      FUTURES TRANSACTIONS
 
                      In order to gain exposure to or protect from changes in
                      the market, Government Income Fund and Adjustable Rate
                      Mortgage Securities Fund may buy and sell financial
                      futures contracts and related options. Risks of entering
                      into futures contracts and related options include the
                      possibility that 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 funds are
                      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 funds 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 funds recognize a realized gain or loss when
                      the contract is closed or expires.
 
                      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 September 30, 1997, Government Income Fund
                      had entered into outstanding when-issued or forward
                      commitments of $4,996,094.
 
- --------------------------------------------------------------------------------
 
16                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
                      In connection with their ability to purchase securities on
                      a when-issued or forward-commitment basis, Government
                      Income Fund and Intermediate Bond Fund may enter into
                      mortgage dollar rolls in which the funds sell securities
                      purchased on a forward commitment basis and simultaneously
                      contract with a counterparty to repurchase similar (same
                      type, coupon and maturity) but not identical securities on
                      a specified future date. As an inducement to "roll over"
                      their purchase commitments, the funds receive negotiated
                      fees. For the year ended September 30, 1997, such fees
                      earned amounted to $96,491 for Government Income Fund.
 
                      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 (losses) may
                      differ for financial statement and tax purposes primarily
                      because of losses deferred due to "wash sale" transactions
                      and the timing of recognition of income on certain
                      collateralized mortgage-backed securities. 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 funds.
 
                      ALLOCATION OF INCOME, EXPENSES AND GAINS (LOSSES)
 
                      Income, expenses (other than class-specific expenses) and
                      realized and unrealized gains and losses for Intermediate
                      Bond Fund are allocated daily to each class of shares
                      based upon the relative proportion of net assets
                      represented by such class. Class-specific expenses, which
                      include distribution and service fees, are charged
                      directly to such class.
 
                      DISTRIBUTIONS TO SHAREHOLDERS
 
                      Distributions to shareholders from net investment income
                      for Government Income Fund and Adjustable Rate Mortgage
                      Securities Fund are declared daily and paid monthly.
                      Distributions to shareholders from net investment income
                      for Intermediate Bond Fund are declared separately for
                      each class daily and paid monthly. Net realized gains
                      distributions for the funds, if any, will be made at least
                      annually. Distributions are payable in cash or reinvested
                      in additional shares of the same class.
 
                      REPURCHASE AGREEMENTS
 
                      For repurchase agreements entered into with certain
                      broker-dealers, the funds, along with other affiliated
                      registered investment companies, may transfer uninvested
                      cash balances to 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
 
- --------------------------------------------------------------------------------
 
17                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
                      repurchase agreements are held by the funds' custodian
                      bank until maturity of the repurchase agreement.
                      Provisions for all agreements ensure that the daily market
                      value of the collateral is in excess of the repurchase
                      amount, including accrued interest, to protect the funds
                      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 in the financial statements. Actual
                      results could differ from these estimates.
 
(3) INVESTMENT
SECURITY
   TRANSACTIONS
 ................................
                      Cost of purchases and proceeds from sales of securities,
                      other than temporary investments in short-term securities,
                      for the year ended September 30, 1997, were as follows:
 
<TABLE>
<CAPTION>
                                                                     ADJUSTABLE RATE
                                          GOVERNMENT   INTERMEDIATE      MORTGAGE
                                          INCOME FUND   BOND FUND    SECURITIES FUND
                                          -----------  ------------  ----------------
<S>                                       <C>          <C>           <C>
Purchases ..............................  $16,741,252  $ 82,262,456    $ 54,501,200
Proceeds from sales ....................  $42,501,054  $122,277,720    $132,770,723
</TABLE>
 
                      Including dollar rolls for Government Income Fund,
                      purchases and sales aggregated $41,701,408 and $67,461,210
                      respectively.
 
(4) CAPITAL SHARE
   TRANSACTIONS
 ................................
                      Capital share transactions for the funds were as follows:
 
<TABLE>
<CAPTION>
                                                 YEAR ENDED                 YEAR ENDED
                                             SEPTEMBER 30, 1997         SEPTEMBER 30, 1996
                                          ------------------------  --------------------------
                                            SHARES       AMOUNT       SHARES        AMOUNT
                                          ----------  ------------  -----------  -------------
<S>                                       <C>         <C>           <C>          <C>
GOVERNMENT INCOME FUND:
  Sales of fund shares .................     686,546  $  6,139,195      822,655  $   7,312,999
  Issued for reinvested
    distributions ......................     406,146     3,630,952      706,427      6,312,741
  Redemptions of fund shares ...........  (3,247,825)  (29,089,924)  (3,808,707)   (33,990,246)
                                          ----------  ------------  -----------  -------------
                                          (2,155,133) $(19,319,777)  (2,279,625) $ (20,364,506)
                                          ----------  ------------  -----------  -------------
                                          ----------  ------------  -----------  -------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                 YEAR ENDED                 YEAR ENDED
                                           SEPTEMBER 30, 1997(a)        SEPTEMBER 30, 1996
                                          ------------------------  --------------------------
                                            SHARES       AMOUNT       SHARES        AMOUNT
                                          ----------  ------------  -----------  -------------
<S>                                       <C>         <C>           <C>          <C>
INTERMEDIATE BOND FUND:
CLASS A
  Sales of fund shares .................     412,880  $  3,127,050      884,830  $   6,934,686
  Issued for reinvested
    distributions ......................     467,515     3,535,885    4,706,970     37,022,030
  Redemptions of fund shares ...........  (8,391,651)  (63,548,352) (26,737,969)  (206,000,282)
  Redemptions in exchange for Class Y
    shares .............................  (2,201,482)  (16,775,291)          --             --
                                          ----------  ------------  -----------  -------------
                                          (9,712,738) $(73,660,708) (21,146,169) $(162,043,566)
                                          ----------  ------------  -----------  -------------
                                          ----------  ------------  -----------  -------------
CLASS Y
  Sales of fund shares .................      37,581  $    284,580           --  $          --
  Sales in exchange for Class A
    shares .............................   2,201,482    16,775,291           --             --
  Issued for reinvested
    distributions ......................      41,735       316,060           --             --
  Redemptions of fund shares ...........    (459,438)   (3,463,861)          --             --
                                          ----------  ------------  -----------  -------------
                                           1,821,360  $ 13,912,070           --  $          --
                                          ----------  ------------  -----------  -------------
                                          ----------  ------------  -----------  -------------
</TABLE>
 
                      (a)  REPRESENTS PERIOD FROM FEBRUARY 18 (COMMENCEMENT OF
                           OFFERING OF SHARES) TO SEPTEMBER 30, 1997, FOR CLASS
                           Y.
 
- --------------------------------------------------------------------------------
 
18                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                   YEAR ENDED                   MONTH ENDED                    YEAR ENDED
                               SEPTEMBER 30, 1997            SEPTEMBER 30, 1996              AUGUST 31, 1996
                           ---------------------------   --------------------------   -----------------------------
                              SHARES         AMOUNT        SHARES         AMOUNT         SHARES          AMOUNT
                           ------------   ------------   -----------   ------------   -------------   -------------
<S>                        <C>            <C>            <C>           <C>            <C>             <C>
ADJUSTABLE RATE MORTGAGE SECURITIES
  FUND:
  Sales of fund
    shares ..............       317,414   $  2,570,801        14,416   $    115,577         370,239   $   2,964,814
  Issued for reinvested
    distributions .......       626,711      5,084,891        93,048        747,173       1,637,616      13,155,273
  Issued in connection
    with the merger of
    BDJ, CDJ, DDJ, and
    EDJ (note 7) ........            --             --            --             --     104,403,211     801,742,686
  Issued in connection
    with the merger of
    Institutional
    Government Adjustable
      Portfolio (PIFAX)
      (note 7) ..........            --             --       579,823      4,661,948              --              --
  Redemptions of fund
    shares .                (10,899,377)   (88,458,420)   (1,672,368)   (13,439,193)   (119,875,424)   (960,718,174)
                           ------------   ------------   -----------   ------------   -------------   -------------
                             (9,955,252)  $(80,802,728)     (985,081)  $ (7,914,495)    (13,464,358)  $(142,855,401)
                           ------------   ------------   -----------   ------------   -------------   -------------
                           ------------   ------------   -----------   ------------   -------------   -------------
</TABLE>
 
                      Sales charges received by Piper Jaffray Inc. (Piper
                      Jaffray), the funds' distributor, for distributing the
                      funds' shares for the year ended September 30, 1997, were
                      as follows:
 
<TABLE>
<CAPTION>
                                                            INTERMEDIATE
                                                              BOND FUND        ADJUSTABLE RATE
                                           GOVERNMENT    -------------------       MORTGAGE
                                          INCOME FUND    CLASS A    CLASS Y    SECURITIES FUND
                                          ------------   --------   --------   ----------------
<S>                                       <C>            <C>        <C>        <C>
Front-end sales charges ................     $5,362       $  307       $--          $1,930
Contingent deferred sales charges ......      1,345        1,308        --           4,573
                                          ------------   --------      ---        --------
                                             $6,707       $1,615       $--          $6,503
                                          ------------   --------      ---        --------
                                          ------------   --------      ---        --------
</TABLE>
 
(5) EXPENSES
 ................................
                      INVESTMENT MANAGEMENT FEE
                      Piper Funds and Piper Funds II have entered into
                      investment management agreements with Piper Capital
                      Management Incorporated (Piper Capital) under which Piper
                      Capital manages each fund's assets and furnishes related
                      office facilities, equipment, research and personnel. The
                      agreements require each fund to pay Piper Capital a
                      monthly fee based on average daily net assets. The fees
                      for each fund are as follows: Government Income Fund, an
                      annual rate of 0.50% of the first $250 million in net
                      assets and decreasing percentages thereafter to 0.40% of
                      net assets in excess of $500 million; Intermediate Bond
                      Fund, an annual rate of 0.30% of the first $100 million in
                      net assets, 0.25% of the next $150 million and 0.20% of
                      net assets in excess of $250 million; Adjustable Rate
                      Mortgage Securities Fund, an annual rate of 0.35% on the
                      first $500 million in net assets and 0.30% of net assets
                      in excess of $500 million. For the year ended September
                      30, 1997, the effective management fee paid by the funds
                      was 0.50%, 0.30% and 0.35% on an annual basis for
                      Government Income Fund, Intermediate Bond Fund and
                      Adjustable Rate Mortgage Securities Fund, respectively.
 
                      DISTRIBUTION AND SERVICE FEES
                      Each fund also pays Piper Jaffray fees accrued daily and
                      paid quarterly for providing shareholder services and
                      distribution-related services. The fees for each fund,
                      which were being voluntarily limited for Government Income
                      Fund and Class A of Intermediate Bond Fund for the year
                      ended September 30, 1997, are stated below as a percent of
                      average daily net assets attributable to such shares.
 
- --------------------------------------------------------------------------------
 
19                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                          INTERMEDIATE
                                                            BOND FUND       ADJUSTABLE RATE
                                          GOVERNMENT    -----------------      MORTGAGE
                                          INCOME FUND   CLASS A   CLASS Y   SECURITIES FUND
                                          -----------   -------   -------   ---------------
<S>                                       <C>           <C>       <C>       <C>
Distribution fee .......................      0.25%       0.05%       --            --
Service fee ............................      0.25%       0.25%       --          0.15%
                                             -----      -------   -------        -----
  Total distribution and service
    fees ...............................      0.50%       0.30%       --          0.15%
                                             -----      -------   -------        -----
                                             -----      -------   -------        -----
  Total distribution and service fees
    after voluntary limitation .........      0.34%       0.22%       --          0.15%
                                             -----      -------   -------        -----
                                             -----      -------   -------        -----
</TABLE>
 
                      SHAREHOLDER ACCOUNT SERVICING FEES
                      The company has also entered into shareholder account
                      servicing agreements under which Piper Jaffray and Piper
                      Trust Company (Piper Trust) perform various transfer and
                      dividend disbursing agent services for accounts held at
                      the respective company. The fees, which are paid monthly
                      to Piper Jaffray and Piper Trust for providing these
                      services, are equal to an annual rate of $7.50 per active
                      shareholder account and $1.60 per closed account. For the
                      year ended September 30, 1997, Piper Jaffray and Piper
                      Trust received the following amounts in connection with
                      the shareholder account servicing agreements:
 
<TABLE>
<CAPTION>
                                                                         ADJUSTABLE RATE
                                           GOVERNMENT    INTERMEDIATE        MORTGAGE
                                          INCOME FUND      BOND FUND     SECURITIES FUND
                                          ------------   -------------   ----------------
<S>                                       <C>            <C>             <C>
Piper Jaffray ..........................     $38,499        $16,406           $60,613
Piper Trust ............................       6,162          2,737                --
                                          ------------   -------------   ----------------
                                             $44,661        $19,143           $60,613
                                          ------------   -------------   ----------------
                                          ------------   -------------   ----------------
</TABLE>
 
                      OTHER FEES AND EXPENSES
                      In addition to the investment management, distribution and
                      shareholder account servicing fees, each 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.
 
                      Expenses paid indirectly represent a reduction of
                      custodian fees for earnings on miscellaneous cash balances
                      maintained by the funds.
 
(6) CAPITAL LOSS
    CARRYOVER
 ................................
                      For federal income tax purposes, the following funds had
                      capital loss carryovers at September 30, 1997, which, if
                      not offset by subsequent capital gains, will expire on the
                      funds' fiscal year-ends as indicated below. It is unlikely
                      the board of directors will authorize a distribution of
                      any net realized capital gains until the available capital
                      loss carryovers have been offset or expire. Due to the
                      limits on utilization of the capital loss carryovers which
                      Adjustable Rate Mortgage Securities Fund acquired in the
                      mergers described in note 7, the utilization of these
                      capital loss carryovers in subsequent years is limited to
                      $69,945,971 per year.
 
- --------------------------------------------------------------------------------
 
20                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
       GOVERNMENT
       INCOME FUND                 INTERMEDIATE             ADJUSTABLE RATE MORTGAGE
 -----------------------            BOND FUND                   SECURITIES FUND
   CAPITAL                 ----------------------------   ----------------------------
    LOSS                    CAPITAL LOSS                   CAPITAL LOSS
  CARRYOVER   EXPIRATION      CARRYOVER      EXPIRATION      CARRYOVER      EXPIRATION
 -----------  ----------   ---------------   ----------   ---------------   ----------
 <S>          <C>          <C>               <C>          <C>               <C>
 $   842,317     2002      $   180,309,397      2003      $       600,056      1998
  13,367,115     2003           95,748,876      2004            4,923,055      1999
   1,723,511     2004              146,313      2006           38,088,524      2000
 -----------               ---------------
 $15,932,943               $   276,204,586                     99,472,115      2001
 -----------               ---------------
 -----------               ---------------
                                                                  765,529      2002
                                                                1,311,310      2003
                                                                1,340,246      2004
                                                                  454,744      2006
                                                          ---------------
                                                          $   146,955,579
                                                          ---------------
                                                          ---------------
</TABLE>
 
(7) MERGERS
 ................................
                      As described in note 1 to the financial statements, on
                      September 1, 1995, the net assets of BDJ, CDJ, DDJ and EDJ
                      were combined in a tax-free merger to form ARMS Fund. In
                      addition, on September 16, 1996, the net assets of
                      Institutional Government Adjustable Portfolio (PIFAX) were
                      acquired by ARMS Fund via a tax-free merger. The following
                      table presents the shares of ARMS Fund issued in exchange
                      for the net assets of each of the merged funds and the
                      composition of such net assets as of the merger dates.
 
<TABLE>
<CAPTION>
                                             MERGER           MERGER OF
                                            OF PIFAX    BDJ, CDJ, DDJ AND EDJ
                                            9/16/96             9/1/95
                                          ------------  ----------------------
<S>                                       <C>           <C>
Shares issued in connection with the
  mergers* .............................       579,823         104,403,211
                                          ------------  ----------------------
                                          ------------  ----------------------
 
Net assets immediately after the
  mergers ..............................  $269,963,724      $1,211,749,182
                                          ------------  ----------------------
                                          ------------  ----------------------
Composition of net assets merged into
  ARMS Fund**
  Capital stock ........................  $  7,987,753      $  900,831,012
  Accumulated net realized loss on
    investments ........................    (3,325,805)        (94,949,571)
  Unrealized depreciation of
    investments ........................            --          (4,138,755)
                                          ------------  ----------------------
  Total net assets merged ..............  $  4,661,948      $  801,742,686
                                          ------------  ----------------------
                                          ------------  ----------------------
</TABLE>
 
                      *   SHARES ISSUED ARE DETERMINED BY THE RATIO OF EACH
                          MERGED FUND'S NET ASSET VALUE TO ARMS FUND'S NET ASSET
                          VALUE ON THE DATES OF THE MERGERS.
 
                      **  DDJ IS CONSIDERED THE SURVIVOR OF THE SEPTEMBER 1,
                          1995, MERGER FOR FINANCIAL REPORTING PURPOSES.
                          THEREFORE, THE NET ASSETS MERGED ON 9/1/95 ARE THOSE
                          OF BDJ, CDJ AND EDJ, WHICH ARE CONSIDERED TO HAVE
                          MERGED INTO ARMS FUND.
 
- --------------------------------------------------------------------------------
 
21                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(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:
 
                      GOVERNMENT INCOME FUND
 
<TABLE>
<CAPTION>
                                                 Year Ended September 30,
                                          --------------------------------------
                                           1997    1996    1995    1994    1993
                                          ------  ------  ------  ------  ------
<S>                                       <C>     <C>     <C>     <C>     <C>
PER-SHARE DATA
Net asset value, beginning of period ...  $ 8.83  $ 8.99  $ 8.42  $10.01  $ 9.86
                                          ------  ------  ------  ------  ------
Operations:
  Net investment income ................    0.57    0.60    0.60    0.69    0.80
  Net realized and unrealized gains
    (losses) on investments ............    0.33   (0.16)   0.60   (1.58)   0.15
                                          ------  ------  ------  ------  ------
    Total from operations ..............    0.90    0.44    1.20   (0.89)   0.95
                                          ------  ------  ------  ------  ------
Distributions to shareholders:
  From net investment income ...........   (0.57)  (0.60)  (0.63)  (0.68)  (0.80)
  From net realized gains ..............      --      --      --   (0.02)     --
                                          ------  ------  ------  ------  ------
    Total distributions to
      shareholders .....................   (0.57)  (0.60)  (0.63)  (0.70)  (0.80)
                                          ------  ------  ------  ------  ------
Net asset value, end of period .........  $ 9.16  $ 8.83  $ 8.99  $ 8.42  $10.01
                                          ------  ------  ------  ------  ------
                                          ------  ------  ------  ------  ------
SELECTED INFORMATION
Total return (a) .......................   10.49%   4.99%  14.87%  (9.26)%  10.06%
Net assets at end of period (in
  millions) ............................  $   67  $   84  $  106  $  126  $  160
Ratio of expenses to average daily net
  assets ...............................    1.19%   1.09%   1.11%   1.05%   1.09%
Ratio of net investment income to
  average daily net assets .............    6.32%   6.66%   7.02%   7.43%   8.10%
Portfolio turnover rate (excluding
  short-term securities and dollar roll
  transactions) ........................      21%     32%     87%    121%    191%
Ratios before waivers by the
  distributor:
  Ratio of expenses to average daily net
    assets before waivers .                 1.35%   1.28%   1.29%   1.24%   1.27%
  Ratio of net investment income to
    average daily net assets before
    waivers ............................    6.16%   6.47%   6.84%   7.24%   7.92%
</TABLE>
 
(a)  TOTAL RETURN ASSUMES REINVESTMENT OF DISTRIBUTIONS AND DOES NOT REFLECT A
     SALES CHARGE.
 
- --------------------------------------------------------------------------------
 
22                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(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:
 
                      INTERMEDIATE BOND FUND
 
<TABLE>
<CAPTION>
                                                         CLASS A
                                          --------------------------------------
                                                 Year Ended September 30,
                                          --------------------------------------
                                           1997    1996    1995    1994    1993
                                          ------  ------  ------  ------  ------
<S>                                       <C>     <C>     <C>     <C>     <C>
PER-SHARE DATA
Net asset value, beginning of period ...  $ 7.50  $ 8.12  $ 7.98  $12.22  $11.51
                                          ------  ------  ------  ------  ------
Operations:
  Net investment income ................    0.44    0.53(c)   0.88   0.90   1.29
  Net realized and unrealized gains
    (losses) on investments ............    0.17   (0.11)   0.31   (3.96)   0.56
                                          ------  ------  ------  ------  ------
    Total from operations ..............    0.61    0.42    1.19   (3.06)   1.85
                                          ------  ------  ------  ------  ------
Distributions to shareholders:
  From net investment income ...........   (0.44)  (1.04)  (1.05)  (0.95)  (0.90)
  From net realized gains ..............      --      --      --   (0.23)  (0.24)
                                          ------  ------  ------  ------  ------
    Total distributions to
      shareholders .....................   (0.44)  (1.04)  (1.05)  (1.18)  (1.14)
                                          ------  ------  ------  ------  ------
Net asset value, end of period .........  $ 7.67  $ 7.50  $ 8.12  $ 7.98  $12.22
                                          ------  ------  ------  ------  ------
                                          ------  ------  ------  ------  ------
SELECTED INFORMATION
Total return (a) .......................    8.29%   5.68%  16.15% (26.65)%  17.04%
Net assets at end of period (in
  millions) ............................  $   64  $  136  $  319  $  564  $  792
Ratio of expenses to average daily net
  assets (b) ...........................    0.85%   0.72%   0.97%   0.78%   0.70%
Ratio of net investment income to
  average daily net assets .............    5.83%   6.65%   8.02%   9.33%  12.51%
Portfolio turnover rate (excluding
  short-term securities) ...............      86%     89%    136%    169%    109%
Ratios before waivers by the
  distributor:
  Ratio of expenses to average daily net
    assets before waivers .                 0.93%   0.82%   1.07%   0.85%   0.77%
  Ratio of net investment income to
    average daily net assets before
    waivers ............................    5.75%   6.55%   7.92%   9.26%  12.44%
</TABLE>
 
<TABLE>
<CAPTION>
                                                   CLASS Y
                                          -------------------------
                                                Period Ended
                                            September 30, 1997(d)
                                          -------------------------
<S>                                       <C>
PER-SHARE DATA
Net asset value, beginning of period ...            $ 7.62
                                                  --------
Operations:
  Net investment income ................              0.28
  Net realized and unrealized gains on
    investments ........................              0.06
                                                  --------
    Total from operations ..............              0.34
                                                  --------
Distributions to shareholders:
  From net investment income ...........             (0.28)
                                                  --------
Net asset value, end of period .........            $ 7.68
                                                  --------
                                                  --------
SELECTED INFORMATION
Total return (a) .......................              4.58%
Net assets at end of period (in
  millions) ............................            $   14
Ratio of expenses to average daily net
  assets ...............................              0.57%(e)
Ratio of net investment income to
  average daily net assets .............              6.06%(e)
Portfolio turnover rate (excluding
  short-term securities) ...............                86%
</TABLE>
 
(a)  TOTAL RETURN ASSUMES REINVESTMENT OF DISTRIBUTIONS AND DOES NOT REFLECT A
     SALES CHARGE.
(b)  INCLUDES FEDERAL EXCISE TAXES OF 0.08%, 0.37%, 0.23% AND 0.09% FOR FISCAL
     1996, 1995, 1994 AND 1993 RESPECTIVELY.
(c)  BASED ON AVERAGE SHARES OUTSTANDING DURING THE PERIOD.
(d)  COMMENCEMENT OF OFFERING OF CLASS Y SHARES WAS FEBRUARY 18, 1997.
(e)  ANNUALIZED.
 
- --------------------------------------------------------------------------------
 
23                                     1997 Annual Report - Income Funds
<PAGE>
                      Notes to Financial Statements (continued)
- --------------------------------------------------------------------------------
 
(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:
 
                      ADJUSTABLE RATE MORTGAGE SECURITIES FUND
 
<TABLE>
<CAPTION>
                                                                                Year Ended August 31,
                                    Year Ended            Month Ended       ------------------------------
                                September 30, 1997    September 30, 1996     1996    1995    1994    1993
                                -------------------   -------------------   ------  ------  ------  ------
<S>                             <C>                   <C>                   <C>     <C>     <C>     <C>
PER-SHARE DATA (a)
Net asset value, beginning of
  period .....................          $  8.06               $  8.03       $ 7.99  $ 8.10  $ 8.88  $ 8.95
                                        -------               -------       ------  ------  ------  ------
Operations:
  Net investment income ......             0.47                  0.04         0.49    0.47    0.55    0.63
  Net realized and unrealized
    gains (losses) on
    investments ..............             0.09                  0.03         0.01   (0.05)  (0.82)  (0.09)
                                        -------               -------       ------  ------  ------  ------
    Total from operations ....             0.56                  0.07         0.50    0.42   (0.27)   0.54
                                        -------               -------       ------  ------  ------  ------
Distributions to shareholders:
  From net investment
    income ...................            (0.47)                (0.04)       (0.46)  (0.53)  (0.51)  (0.61)
                                        -------               -------       ------  ------  ------  ------
Net asset value, end of
period .......................          $  8.15               $  8.06       $ 8.03  $ 7.99  $ 8.10  $ 8.88
                                        -------               -------       ------  ------  ------  ------
                                        -------               -------       ------  ------  ------  ------
SELECTED INFORMATION (a)
Total return (b) .............             7.16%                 0.85%        6.40%   5.43%  (3.18)%   6.24%
Net assets at end of period
  (in millions) ..............          $   185               $   263       $  270  $  409  $  500  $  551
Ratio of expenses to average
  daily net assets ...........             0.81%                 0.82%(d)     0.60%   0.63%   0.60%   0.58%
Ratio of net investment income
  to average daily net
  assets .....................             5.84%                 5.82%(d)     5.74%   5.62%   6.39%   7.25%
Portfolio turnover rate
  (excluding short-term
  securities) ................               25%                    2%          51%     36%     39%     39%
Amount of borrowings
  outstanding at end of period
  (in millions)(c) ...........          $    --               $    --       $   --  $   --  $  145  $  145
Average amount of borrowings
  outstanding during the
  period (in millions) (c) ...          $    --               $    --       $   --  $   57  $  145  $  149
Average number of shares
  outstanding during the
  period (in millions) (c) ...               --                    --           --      53      62      62
Average per-share amount of
  borrowings outstanding
  during the period (c) ......          $    --               $    --       $   --  $ 1.09  $ 2.34  $ 2.41
Ratios before waivers by the
  adviser:
  Ratio of expenses to average
    daily net assets before
    waivers ..................               --                  0.76%(d)       --      --      --      --
  Ratio of net investment
    income to average daily
    net assets before waivers                --                  5.58%(d)       --      --      --      --
</TABLE>
 
(a)  ON SEPTEMBER 1, 1995 FOUR CLOSED-END FUNDS, AMERICAN ADJUSTABLE RATE TERM
     TRUST 1996, AMERICAN ADJUSTABLE RATE TERM TRUST 1997, AMERICAN ADJUSTABLE
     RATE TERM TRUST 1998 (DDJ) AND AMERICAN ADJUSTABLE RATE TERM TRUST 1999
     WERE COMBINED TO CREATE THE FUND. DDJ IS CONSIDERED THE SURVIVING ENTITY
     FOR FINANCIAL REPORTING PURPOSES. THE FINANCIAL HIGHLIGHTS PRESENTED FOR
     THE PERIODS PRIOR TO SEPTEMBER 1, 1995 ARE THOSE OF DDJ. THE PER-SHARE
     INFORMATION FOR SUCH PERIODS HAS BEEN RESTATED TO REFLECT THE IMPACT OF
     ADDITIONAL SHARES CREATED RESULTING FROM THE DIFFERENCE IN THE NET ASSET
     VALUE PER SHARE OF DDJ AT THE TIME OF THE MERGER ($8.71) AND THE INITIAL
     NET ASSET VALUE PER SHARE OF THE FUND ($8.00).
(b)  TOTAL RETURN ASSUMES REINVESTMENT OF DISTRIBUTIONS AND DOES NOT REFLECT A
     SALES CHARGE.
(c)  DDJ WAS A CLOSED-END MANAGEMENT INVESTMENT COMPANY AND WAS PERMITTED TO
     ENTER INTO BORROWINGS FOR OTHER THAN TEMPORARY OR EMERGENCY PURPOSES.
     ADJUSTABLE RATE MORTGAGE SECURITIES FUND MAY BORROW ONLY FOR TEMPORARY OR
     EMERGENCY PURPOSES.
(d)  ANNUALIZED.
 
- --------------------------------------------------------------------------------
 
24                                     1997 Annual Report - Income Funds
<PAGE>
                           Investments in Securities
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
GOVERNMENT INCOME FUND                                          September 30, 1997
 .......................................................................................
 
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
U.S. GOVERNMENT AND AGENCY SECURITIES (104.8%):
  U.S. AGENCY DEBENTURES (4.4%):
      5.80%, FNMA, 12/10/03 .............................  $ 2,000,000      $  1,955,420
      6.63%, FNMA, 3/21/06 ..............................    1,000,000         1,017,000
                                                                            ------------
                                                                               2,972,420
                                                                            ------------
 
  U.S. AGENCY MORTGAGE-BACKED SECURITIES (88.6%):
    FIXED RATE (71.6%):
      7.50%, FHLMC, 11/1/09 .............................    1,231,127         1,265,747
      7.50%, FHLMC, 10/1/09 .............................    2,083,961         2,142,562
      7.50%, FHLMC, 12/1/09 .............................    2,745,665         2,822,873
      7.00%, FHLMC, 11/1/25 .............................    2,736,530         2,736,530
      11.00%, FNMA, 10/1/20 .............................    1,266,229         1,435,587
      7.00%, FNMA, 12/1/07 ..............................    5,561,419         5,663,971
      6.50%, FNMA, 8/1/23 ...............................    7,062,367         6,927,759
      6.00%, FNMA, 10/1/23 ..............................      719,137           689,695
      9.00%, FNMA, 7/1/24 ...............................      707,702           753,703
      10.00%, FNMA, 10/1/17 .............................      676,982           746,163
      6.50%, FNMA, 9/1/25 ...............................    4,633,896         4,533,016
      6.50%, FNMA, 4/1/04 ...............................    5,000,000(b)      4,992,150
      10.00%, FNMA, Series 1989-15, Class D, 9/25/18 ....      117,523           119,785
      6.50%, FNMA, Series 1996-23, Class G, 7/25/26 .....    4,250,000         3,935,245
      7.00%, GNMA, 3/15/09 ..............................    1,304,335         1,329,613
      9.00%, GNMA, 10/15/24 .............................      571,143           612,551
      7.00%, GNMA, 2/15/09 ..............................    1,478,465         1,509,883
      7.00%, GNMA, 3/15/09 ..............................    1,874,976         1,911,313
      10.00%, GNMA, 1/15/10 .............................    1,134,998         1,256,306
      9.00%, GNMA, 8/15/25 ..............................    2,619,832         2,795,858
                                                                            ------------
                                                                              48,180,310
                                                                            ------------
 
    INVERSE FLOATER (c) (1.2%):
      3.77%, FHLMC, Series 1419, Class G, LIBOR,
        11/15/97 ........................................      813,803           783,277
                                                                            ------------
 
    INVERSE INTEREST-ONLY (c) (1.0%):
      14.56%, FHLMC G, Series 12, Class AB, LIBOR,
        12/25/08 ........................................           --           662,158
                                                                            ------------
 
    Z-BOND (c) (14.8%):
      8.29%, FHLMC, Series 1339, Class PZ, 7/15/22 ......    3,890,795         4,138,988
      7.60%, FHLMC, Series 1677, Class Z, 7/15/23 .......    3,946,213         4,092,894
      8.04%, FHLMC, Series 1694, Class Z, 3/15/24 .......      989,003           871,262
      7.59%, FNMA, Series 1993-160, Class ZA, 9/25/23 ...      935,583           843,007
                                                                            ------------
                                                                               9,946,151
                                                                            ------------
 
  U.S. GOVERNMENT SECURITIES (11.8%):
      7.25%, U.S. Treasury Bond, 5/15/16 ................    2,000,000         2,174,320
      8.13%, U.S. Treasury Bond, 8/15/19 ................    1,000,000         1,190,990
      5.75%, U.S. Treasury Note, 8/15/03 ................      500,000           492,355
</TABLE>
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
      7.25%, U.S. Treasury Note, 5/15/04 ................  $ 1,000,000      $  1,062,320
      6.25%, U.S. Treasury Note, 5/31/00 ................    1,000,000         1,009,690
      5.88%, U.S. Treasury Note, 6/30/00 ................    2,000,000         2,001,460
                                                                            ------------
                                                                               7,931,135
                                                                            ------------
 
        Total U.S. Government and Agency Securities
          (cost: $67,713,238)  ..........................                     70,475,451
                                                                            ------------
 
SHORT-TERM SECURITIES (2.5%):
      Repurchase agreement with Goldman Sachs, acquired
        on 9/30/97, interest of $294, 6.15%, 10/1/97
        (cost: $1,719,000) ..............................    1,719,000(d)      1,719,000
                                                                            ------------
 
        Total Investments in Securities
          (cost: $69,432,238)(e)  .......................                   $ 72,194,451
                                                                            ------------
                                                                            ------------
</TABLE>
 
NOTES TO INVESTMENTS IN SECURITIES:
(a)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(b)  ON SEPTEMBER 30, 1997, THE TOTAL COST OF INVESTMENTS PURCHASED ON A WHEN-
     ISSUED BASIS WAS $4,996,094.
(c)  PORTFOLIO ABBREVIATIONS AND DEFINITIONS:
         LIBOR - LONDON INTERBANK OFFERED RATE
         INVERSE FLOATER - REPRESENTS SECURITIES THAT PAY INTEREST AT RATES THAT
           INCREASE (DECREASE) WITH A DECLINE (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 SEPTEMBER 30, 1997.
         INVERSE INTEREST-ONLY - REPRESENTS SECURITIES THAT ENTITLE HOLDERS TO
           RECEIVE ONLY INTEREST PAYMENTS ON THE UNDERLYING MORTGAGES. INTEREST
           IS PAID AT A RATE THAT INCREASES (DECREASES) WITH A DECREASE
           (INCREASE) IN THE SPECIFIED INDEX. THE YIELD TO MATURITY OF AN
           INVERSE INTEREST-ONLY IS EXTREMELY SENSITIVE TO THE RATE OF PRINCIPAL
           PAYMENTS ON THE UNDERLYING MORTGAGE ASSETS. A RAPID (SLOW) RATE OF
           PRINCIPAL REPAYMENTS MAY HAVE AN ADVERSE (POSITIVE) EFFECT ON YIELD
           TO MATURITY. INTEREST RATES DISCLOSED REPRESENT CURRENT YIELDS BASED
           UPON THE CURRENT COST BASIS AND ESTIMATED TIMING AND AMOUNT OF FUTURE
           CASH FLOWS.
         Z-BOND - 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)  REPURCHASE AGREEMENT IN A JOINT TRADING ACCOUNT WHICH IS COLLATERALIZED BY
     U.S. GOVERNMENT AGENCY SECURITIES. ACCRUED INTEREST SHOWN REPRESENTS
     INTEREST DUE AT MATURITY OF THE REPURCHASE AGREEMENT.
(e)  ON SEPTEMBER 30, 1997, THE COST OF INVESTMENTS IN SECURITIES FOR FEDERAL
     INCOME TAX PURPOSES WAS $69,632,860. THE AGGREGATE GROSS UNREALIZED
     APPRECIATION AND DEPRECIATION OF INVESTMENTS IN SECURITIES BASED ON THIS
     COST WERE AS FOLLOWS:
 
<TABLE>
      <S>                                   <C>
      GROSS UNREALIZED APPRECIATION ......  $  2,901,802
      GROSS UNREALIZED DEPRECIATION ......      (340,211)
                                            ------------
        NET UNREALIZED APPRECIATION ......  $  2,561,591
                                            ------------
                                            ------------
</TABLE>
 
- --------------------------------------------------------------------------------
 
25                                     1997 Annual Report - Income Funds
<PAGE>
                           Investments in Securities
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
INTERMEDIATE BOND FUND                                          September 30, 1997
 .......................................................................................
 
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
U.S. GOVERNMENT AND AGENCY SECURITIES (63.3%):
  U.S. AGENCY DEBENTURES (9.1%):
      8.65%, FNMA, 2/10/98 ..............................  $ 2,000,000      $  2,024,460
      7.40%, FNMA, 7/1/04 ...............................    2,000,000         2,121,580
      6.18%, FNMA, 3/15/01 ..............................    1,000,000         1,004,330
      6.16%, FNMA, 4/3/01 ...............................    2,000,000         2,007,360
                                                                            ------------
                                                                               7,157,730
                                                                            ------------
 
  U.S. AGENCY MORTGAGE-BACKED SECURITIES (27.3%):
    FIXED RATE (27.3%):
      7.00%, FHLMC, 9/1/10 ..............................    2,121,304         2,149,814
      10.00%, FNMA, 11/1/18 .............................    2,358,065         2,587,976
      7.00%, FNMA, 11/1/10 ..............................    2,161,760         2,186,750
      9.00%, FNMA, 12/1/20 ..............................    1,971,347         2,104,157
      9.50%, FNMA, 6/1/21 ...............................    2,341,360         2,530,120
      9.00%, GNMA, 5/20/25 ..............................    1,985,909         2,105,679
      8.50%, GNMA, 7/20/25 ..............................    2,766,474         2,886,650
      9.00%, GNMA, 8/15/21 ..............................    4,525,306         4,871,764
                                                                            ------------
                                                                              21,422,910
                                                                            ------------
 
  U.S. GOVERNMENT SECURITIES (26.9%):
      7.25%, U.S. Treasury Note, 8/15/04 ................    3,000,000         3,190,740
      6.75%, U.S. Treasury Note, 4/30/00 ................    2,000,000         2,042,340
      5.50%, U.S. Treasury Note, 12/31/00 ...............    5,000,000         4,939,250
      8.00%, U.S. Treasury Note, 8/15/99 ................    4,000,000         4,154,160
      7.88%, U.S. Treasury Note, 11/15/99 ...............    3,500,000         3,641,645
      6.50%, U.S. Treasury Note, 10/15/06 ...............    3,000,000         3,065,070
                                                                            ------------
                                                                              21,033,205
                                                                            ------------
 
        Total U.S. Government and Agency Securities
          (cost: $49,134,009)  ..........................                     49,613,845
                                                                            ------------
 
CORPORATE BONDS (27.8%):
  CONSUMER NON-DURABLES (2.6%):
      Coca-Cola Enterprises, 6.70%, 10/15/36 ............    2,000,000         2,051,880
                                                                            ------------
 
  CONSUMER SERVICES (2.5%):
      Hertz Corp, 6.30%, 11/15/06 .......................    2,000,000         1,994,700
                                                                            ------------
 
  FINANCIAL SERVICES (15.3%):
      American Express Credit, 6.50%, 8/1/00 ............    1,000,000         1,007,970
      First Chicago, 7.63%, 1/15/03 .....................    1,000,000         1,048,610
      Ford Motor Credit Co.,
        7.00%, 9/25/01 ..................................    3,000,000         3,071,490
      General Motors Acceptance Corp., 8.50%, 1/1/03 ....    1,500,000         1,635,645
      Lehman Brothers Inc., 7.50%, 8/1/26 ...............    2,000,000         2,110,840
</TABLE>
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount          Value (a)
- ---------------------------------------------------------  -----------      ------------
<S>                                                        <C>              <C>
      Morgan Stanley Group Inc., 8.10%, 6/24/02 .........  $ 1,000,000      $  1,066,290
      Smith Barney Holdings,
        7.00%, 3/15/04 ..................................    2,000,000         2,037,380
                                                                            ------------
                                                                              11,978,225
                                                                            ------------
 
  RETAIL TRADE (1.3%):
      Nordstrom Credit Inc., 6.70%, 7/1/05 ..............    1,000,000         1,001,820
                                                                            ------------
 
  UTILITIES (6.1%):
      Hydro-Quebec, 9.40%, 2/1/21 .......................    2,300,000         2,854,691
      Korea Electric Power ADS, 6.38%, 12/1/03 ..........    2,000,000         1,922,740
                                                                            ------------
                                                                               4,777,431
                                                                            ------------
 
        Total Corporate Bonds
          (cost: $21,216,369)  ..........................                     21,804,056
                                                                            ------------
 
ASSET-BACKED SECURITIES (6.1%):
      Daimler-Benz Vehicle Trust, 1996-A, Class A, 5.85%,
        7/20/03 .........................................    1,281,972         1,283,971
      Norwest Automobile Trust, 1996-A, Class A3, 5.90%,
        3/15/00 .........................................    1,500,000         1,502,355
      Citibank Credit Card Master Trust I, Series 1997-7,
        Class A, 6.35%, 8/15/02 .........................    2,000,000         2,010,800
                                                                            ------------
 
        Total Asset-Backed Securities
          (cost: $4,779,293)  ...........................                      4,797,126
                                                                            ------------
 
SHORT-TERM SECURITIES (2.6%):
      Repurchase agreement with Goldman Sachs, acquired
        on 9/30/97, interest of $342, 6.15%, 10/1/97
        (cost: $1,999,000) ..............................    1,999,000(b)      1,999,000
                                                                            ------------
 
        Total Investments in Securities
          (cost: $77,128,671)(c)  .......................                   $ 78,214,027
                                                                            ------------
                                                                            ------------
</TABLE>
 
NOTES TO INVESTMENTS IN SECURITIES:
(a)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(b)  REPURCHASE AGREEMENT IN A JOINT TRADING ACCOUNT WHICH IS COLLATERALIZED BY
     U.S. GOVERNMENT AGENCY SECURITIES. ACCRUED INTEREST SHOWN REPRESENTS
     INTEREST DUE AT MATURITY OF THE REPURCHASE AGREEMENT.
(c)  ON SEPTEMBER 30, 1997, THE COST OF INVESTMENTS IN SECURITIES FOR FEDERAL
     INCOME TAX PURPOSES WAS $77,134,153. THE AGGREGATE GROSS UNREALIZED
     APPRECIATION AND DEPRECIATION OF INVESTMENTS IN SECURITIES BASED ON THIS
     COST WERE AS FOLLOWS:
 
<TABLE>
      <S>                                   <C>
      GROSS UNREALIZED APPRECIATION ......  $  1,084,753
      GROSS UNREALIZED DEPRECIATION ......        (4,879)
                                            ------------
        NET UNREALIZED APPRECIATION ......  $  1,079,874
                                            ------------
                                            ------------
</TABLE>
 
- --------------------------------------------------------------------------------
 
26                                     1997 Annual Report - Income Funds
<PAGE>
                           Investments in Securities
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
ADJUSTABLE RATE MORTGAGE SECURITIES FUND                         September 30, 1997
 ........................................................................................
 
                                                            Principal          Market
Description of Security                                      Amount           Value (a)
- ---------------------------------------------------------  -----------      -------------
<S>                                                        <C>              <C>
(PERCENTAGES OF EACH INVESTMENT CATEGORY RELATE TO TOTAL NET ASSETS)
 
U.S. GOVERNMENT AND AGENCY SECURITIES (87.4%):
  U.S. AGENCY MORTGAGE-BACKED SECURITIES (85.7%):
    ADJUSTABLE RATE (b) (63.9%):
      7.38%, FHLMC, 11/1/16 .............................  $ 6,804,104      $   7,039,322
      7.25%, FHLMC, 1/1/17 ..............................      767,392            792,670
      7.77%, FHLMC, 6/1/18 ..............................    1,359,911          1,421,393
      6.26%, FHLMC, 12/1/26 .............................    4,812,428          4,782,157
      6.52%, FHLMC, 2/1/27 ..............................    4,923,346          4,888,341
      7.57%, FHLMC, 8/1/20 ..............................    6,893,456          7,184,153
      6.44%, FHLMC, Series 1684, Class OA, LIBOR,
        3/15/24 .........................................    5,827,591          5,831,204
      5.49%, FMNA, Series 1992-196, Class FA, COFI,
        11/25/07 ........................................    2,331,612          2,196,844
      7.23%, FNMA, 11/1/17 ..............................    7,047,831          7,265,257
      7.63%, FNMA, 1/1/20 ...............................    1,346,998          1,411,641
      7.69%, FNMA, 2/1/22 ...............................    1,227,320          1,287,434
      6.93%, FNMA, 3/1/28 ...............................    5,357,629          5,439,279
      7.31%, FNMA, 10/1/25 ..............................    6,339,500          6,466,163
      5.99%, FNMA, Series 1994-12, Class FB, COFI,
        1/25/09 .........................................    5,010,300          4,941,959
      7.13%, GNMA, 7/20/22 ..............................    5,772,916          5,946,854
      7.38%, GNMA, 5/20/23 ..............................    7,534,956          7,754,901
      7.13%, GNMA, 9/20/23 ..............................    5,852,920          6,025,815
      7.38%, GNMA, 6/20/24 ..............................    7,042,298          7,243,215
      7.00%, GNMA, 8/20/25 ..............................    8,749,888          8,963,823
      7.00%, GNMA, 9/20/25 ..............................    8,854,122          9,071,225
      7.13%, GNMA, 8/20/21 ..............................    5,295,287          5,458,275
      6.88%, GNMA, 10/20/21 .............................    5,148,384          5,291,663
      6.88%, GNMA II, 11/20/25 ..........................    1,276,097          1,311,892
                                                                            -------------
                                                                              118,015,480
                                                                            -------------
 
    FIXED RATE (21.8%):
      5.50%, FHLMC, 4/1/03 ..............................    2,050,936          1,996,464
      5.50%, FHLMC, 4/1/03 ..............................    1,683,834          1,639,111
      5.50%, FHLMC, 4/1/03 ..............................    2,079,724          2,024,487
      5.50%, FHLMC, 4/1/03 ..............................    1,079,829          1,051,149
      5.50%, FHLMC, 4/1/03 ..............................    1,776,755          1,729,565
      6.00%, FHLMC, 6/1/04 ..............................    4,901,168          4,823,044
      6.00%, FHLMC, 6/1/03 ..............................    4,870,942          4,826,811
      6.50%, FNMA, 3/1/03 ...............................    4,257,436          4,264,078
      6.50%, FNMA, 3/1/03 ...............................    8,571,890          8,585,262
      7.00%, FNMA, 3/1/03 ...............................    3,476,963          3,520,425
      9.00%, GNMA, 5/15/16 ..............................      918,091            988,958
      10.00%, GNMA, 2/15/25 .............................    1,936,804          2,143,190
      9.00%, GNMA, 4/15/21 ..............................    2,426,346          2,631,833
                                                                            -------------
                                                                               40,224,377
                                                                            -------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                            Principal          Market
Description of Security                                      Amount           Value (a)
- ---------------------------------------------------------  -----------      -------------
<S>                                                        <C>              <C>
 
  U.S. GOVERNMENT SECURITIES (1.7%):
      7.75%, U.S. Treasury Note, 1/31/00 ................  $ 3,000,000      $   3,123,150
                                                                            -------------
 
        Total U.S. Government and Agency Securities
          (cost: $159,602,863)  .........................                     161,363,007
                                                                            -------------
 
PRIVATE MORTGAGE-BACKED SECURITIES (9.4%):
  FLOATING RATE (b) (9.4%):
      7.67%, Capstead Mortgage Securities Corporation,
        Series 1993-2H, Class A1, Treasury, 9/25/23 .....    8,638,228          8,827,055
      8.00%, Resolution Trust Corporation, Series 1991-8,
        Class A1, Treasury, 12/25/20 ....................    8,337,196          8,445,971
                                                                            -------------
                                                                               17,273,026
                                                                            -------------
 
        Total Private Mortgage-Backed Securities
          (cost: $17,304,511)  ..........................                      17,273,026
                                                                            -------------
 
SHORT-TERM SECURITIES (3.1%):
      Repurchase agreement with Goldman Sachs, acquired
        on 9/30/97, interest of $993, 6.15%, 10/1/97
        (cost: $5,814,000) ..............................    5,814,000(c)       5,814,000
                                                                            -------------
 
        Total Investments in Securities
          (cost: $182,721,374)(d)  ......................                   $ 184,450,033
                                                                            -------------
                                                                            -------------
</TABLE>
 
NOTES TO INVESTMENTS IN SECURITIES:
(a)  SECURITIES ARE VALUED IN ACCORDANCE WITH PROCEDURES DESCRIBED IN NOTE 2 TO
     THE FINANCIAL STATEMENTS.
(b)  PORTFOLIO ABBREVIATIONS AND DEFINITIONS:
         LIBOR - LONDON INTERBANK OFFERED RATE
         COFI (11TH DISTRICT) - COST OF FUNDS INDEX OF THE FEDERAL RESERVE'S
           11TH DISTRICT
         ADJUSTABLE OR FLOATING RATE - REPRESENTS SECURITIES THAT PAY INTEREST
           AT RATES THAT INCREASE (DECREASE) WITH AN INCREASE (DECREASE) IN THE
           SPECIFIED INDEX. INTEREST RATES DISCLOSED ARE IN EFFECT ON SEPTEMBER
           30, 1997.
(c)  REPURCHASE AGREEMENT IN A JOINT TRADING ACCOUNT WHICH IS COLLATERALIZED BY
     U.S. GOVERNMENT AGENCY SECURITIES. ACCRUED INTEREST SHOWN REPRESENTS
     INTEREST DUE AT MATURITY OF THE REPURCHASE AGREEMENT.
(d)  ON SEPTEMBER 30, 1997, THE COST OF INVESTMENTS IN SECURITIES FOR FEDERAL
     INCOME TAX PURPOSES WAS $182,721,581. THE AGGREGATE GROSS UNREALIZED
     APPRECIATION AND DEPRECIATION OF INVESTMENTS IN SECURITIES BASED ON THIS
     COST WERE AS FOLLOWS:
 
<TABLE>
      <S>                                   <C>
      GROSS UNREALIZED APPRECIATION ......  $  1,917,676
      GROSS UNREALIZED DEPRECIATION ......      (189,224)
                                            ------------
        NET UNREALIZED APPRECIATION ......  $  1,728,452
                                            ------------
                                            ------------
</TABLE>
 
- --------------------------------------------------------------------------------
 
27                                     1997 Annual Report - Income Funds
<PAGE>
             Independent Auditors' Report
- --------------------------------------------------------------------------------
 
                      THE BOARD OF DIRECTORS AND SHAREHOLDERS
                      PIPER FUNDS INC.
                      PIPER FUNDS INC. II:
 
                      We have audited the accompanying statements of assets and
                      liabilities, including the schedules of investments in
                      securities, of Government Income Fund and Intermediate
                      Bond Fund (funds within Piper Funds Inc.) and Adjustable
                      Rate Mortgage Securities Fund (a fund within Piper Funds
                      Inc.-II) as of September 30, 1997, and the related
                      statements of operations for the year then ended, the
                      statements of changes in net assets for each of the years
                      in the two-year period ended September 30, 1997, for
                      Government Income Fund and Intermediate Bond Fund and the
                      year ended September 30, 1997, the month ended September
                      30, 1996, and the year ended August 31, 1996, for
                      Adjustable Rate Mortgage Securities Fund, and the
                      financial highlights presented in note 8 to the financial
                      statements. These financial statements and the financial
                      highlights are the responsibility of the funds'
                      management. Our responsibility is to express an opinion on
                      these financial statements and the financial highlights
                      based on our audits.
 
                      We conducted our audits in accordance with generally
                      accepted auditing standards. Those standards require that
                      we plan and perform the audit to obtain reasonable
                      assurance about whether the financial statements and the
                      financial highlights are free of material misstatement. An
                      audit includes examining, on a test basis, evidence
                      supporting the amounts and disclosures in the financial
                      statements. Investment securities held in custody are
                      confirmed to us by the custodian. As to securities
                      purchased but not received, we request confirmations from
                      brokers and, where replies are not received, we carry out
                      other appropriate auditing procedures. An audit also
                      includes assessing the accounting principles used and
                      significant estimates made by management, as well as
                      evaluating the overall financial statement presentation.
                      We believe that our audits provide a reasonable basis for
                      our opinion.
 
                      In our opinion, the financial statements and the financial
                      highlights referred to above present fairly, in all
                      material respects, the financial position of Government
                      Income Fund, Intermediate Bond Fund and Adjustable Rate
                      Mortgage Securities Fund as of September 30, 1997, and the
                      results of their operations, the changes in their net
                      assets and the financial highlights for the periods stated
                      in the first paragraph above, in conformity with generally
                      accepted accounting principles.
 
                      KPMG Peat Marwick LLP
                      Minneapolis, Minnesota
                      November 7, 1997
 
- --------------------------------------------------------------------------------
 
28                                     1997 Annual Report - Income Funds
<PAGE>
             Federal Income Tax Information
- --------------------------------------------------------------------------------
 
                      The following per-share information describes the federal
                      tax treatment of distibutions made during the fiscal year.
                      Distributions for the calender year will be reported to
                      you on Form 1099-DIV. Please consult a tax advisor on how
                      to report these distributions at the state and local
                      levels.
 
                      INCOME DISTRIBUTIONS (TAXABLE AS ORDINARY DIVIDENDS, NONE
                      QUALIFYING FOR DEDUCTION BY CORPORATIONS)
 
<TABLE>
<CAPTION>
                                                                          INTERMEDIATE
                                                  GOVERNMENT                BOND FUND                ADJUSTABLE RATE
                                                    INCOME        -----------------------------         MORTGAGE
PAYABLE DATE                                         FUND           CLASS A          CLASS Y         SECURITIES FUND
- ---------------------------------------------    ------------     ------------     ------------     -----------------
<S>                                              <C>              <C>              <C>              <C>
October 1, 1996 .............................        $0.0485          $ 0.0770         $     --              $0.0382
November 1, 1996 ............................         0.0492            0.0387               --               0.0398
December 2, 1996 ............................         0.0492            0.0387               --               0.0416
January 2, 1997 .............................         0.0496            0.0380               --               0.0393
February 3, 1997 ............................         0.0465            0.0353               --               0.0380
March 3, 1997 ...............................         0.0469            0.0350           0.0146               0.0399
April 1, 1997 ...............................         0.0465            0.0370           0.0393               0.0393
May 1, 1997 .................................         0.0457            0.0353           0.0365               0.0372
June 2, 1997 ................................         0.0465            0.0366           0.0412               0.0399
July 1, 1997 ................................         0.0469            0.0364           0.0378               0.0397
August 1, 1997 ..............................         0.0468            0.0354           0.0368               0.0395
September 2, 1997 ...........................         0.0466            0.0378           0.0393               0.0397
                                                 ------------     ------------     ------------     -----------------
  Total .....................................        $0.5689          $ 0.4812         $ 0.2455              $0.4721
                                                 ------------     ------------     ------------     -----------------
                                                 ------------     ------------     ------------     -----------------
</TABLE>
 
- --------------------------------------------------------------------------------
 
29                                     1997 Annual Report - Income Funds
<PAGE>



                       THIS PAGE WAS INTENTIONALLY LEFT BLANK.



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

                                           30  1997 Annual Report - Income Funds

<PAGE>

AS A SHAREHOLDER IN PIPER FUNDS, YOU HAVE ACCESS TO A FULL RANGE OF SERVICES AND
BENEFITS.

CHECK YOUR PROSPECTUS FOR DETAILS ABOUT SERVICES AND ANY LIMITATIONS THAT MIGHT
APPLY TO YOUR FUND.


SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------


Low Minimum Investments

You may become a shareholder in Piper Funds class A shares or class B shares
with an initial investment of $250 or more. Class Y shares have a minimum
initial investment of $1 million. Add to your existing investment with any
amount, at any time.

Automatic Monthly Investment Programs

To purchase shares as part of a savings discipline, you may automatically
transfer $100 or more each month to any Piper fund from your bank, savings and
loan or other financial institution. Or, transfer $25 or more per month from any
of the Piper money market funds.*

Receiving Dividends and Other Distributions

Dividend and capital gains distributions may be reinvested in additional shares
of the fund you own, invested in shares of a different Piper fund offered in
your state, or distributed in cash. Any reinvestments must be in the same class
of shares.

Reducing the Class A Front-End Sales Charge

You may reduce, or even eliminate, the class A front-end sales charge if: your
initial investment exceeds a specified amount, your investment combined with the
value of your existing Piper Funds investments (or a related account's
investments) exceeds a specified amount or if your investments combined during a
13-month period exceed a specified amount. See your prospectus for details.

Confirmation of Transactions

You receive a confirmation statement following every transaction, except in the
money market funds. All transactions are reflected on your account statement.

Exchanging Shares

If your investment goals or your financial needs change, you may move from one
Piper fund to the same class of another Piper fund, if the shares of that fund
are legally available in your state. There is no fee to exchange shares.

Exchanges are generally made based on the net asset value per share of each fund
at the time of the exchange. However, if your new fund has a higher sales
charge, you must pay the difference.

Taking Systematic Withdrawals

If your account has a value of $5,000 or more, you may make automatic
withdrawals from your account. You may withdraw $100 or more monthly, quarterly,
or semiannually by authorizing the sale of the appropriate number of shares on a
periodic basis.

Reinvesting After a Sale

If you sell class A shares, you may reinvest in class A shares of that fund or
another Piper fund within 30 days without a sales charge. If you sell class B
shares (or other shares subject to a CDSC) and elect to reinvest within 30 days,
that charge will be credited to your account and the reinvested shares will
continue to be subject to the CDSC.

Account Statements

Whenever you add to or withdraw from your account, you will receive a monthly
statement from Piper Jaffray. Accounts with no activity receive a quarterly
statement instead. Periodic dividend and capital gains distributions, if any,
also appear on your statement.


* An investment in a Piper money market fund is neither insured nor guaranteed
by the U.S. government, and there can be no assurance that the fund will be able
to maintain a stable net asset value of $1 per share.


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

                                           31  1997 Annual Report - Income Funds
<PAGE>

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

Benchmark

A benchmark is an established basis of comparison for an investment's
performance. A benchmark may be an unmanaged market index or a group of similar
investments.

Discount

Securities that trade below par because their coupon rates are lower than
current market coupon rates.

Dollar-roll program

The dollar-roll program allows a fund to generate fee income by committing to
pay for securities in the future at today's prices. Participation in the
dollar-roll program increases the cost of assets exposed to market and interest
rate risk, and therefore may, to the extent the fund remains fully invested,
increase a fund's net asset value volatility.

Duration (See Effective duration)

Effective duration

Effective duration estimates how much the value of a security is expected to
change with a given change in interest rates. Longer effective durations
indicate more sensitivity 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 remember that effective duration is based on
certain assumptions and has several limitations. It is most effective as a
measure 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.

If a fund has an aggressive effective duration, it means its managers have set a
longer duration posture in comparison to the fund's benchmark. A fund with a
long effective duration is more sensitive to changing interest rates.

If a fund has a defensive effective duration, it means its managers have set a
shorter duration posture in comparison to the fund's benchmark, to make the fund
less sensitive to changing interest rates.

If a fund has a neutral effective duration, the duration is approximately the
same as its benchmark.

Overweighted or overweighting

In portfolio management, overweighting means a fund's portfolio contains a
higher percentage of a certain sector than its benchmark.

Seasoned

For mortgage-backed securities, a seasoned premium security is a relatively high
coupon security trading at a premium, in which the underlying mortgages have
already gone through a refinancing cycle, making the security less likely to
prepay principal at an accelerated rate if market conditions exist to make
refinancing attractive.


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


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

                                           32  1997 Annual Report - Income Funds
<PAGE>

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, Retired 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.

DAVID A. HUGHEY, Retired Executive Vice President and Chief Administrative
Officer of Dean Witter InterCapital Inc. and Dean Witter Trust Co.

GEORGE LATIMER, Chief Executive Officer, National Equity Funds


OFFICERS
- --------------------------------------------------------------------------------
WILLIAM H. ELLIS, Chairman of the Board

PAUL A. DOW, President

ROBERT H. NELSON, Vice President and Treasurer

SUSAN SHARP MILEY, Secretary


INVESTMENT ADVISOR
- --------------------------------------------------------------------------------
PIPER CAPITAL MANAGEMENT INCORPORATED
222 South Ninth Street, Minneapolis, MN  55402-3804


TRANSFER AND DIVIDEND DISBURSING AGENTS
- --------------------------------------------------------------------------------
INVESTORS FIDUCIARY TRUST COMPANY
1004 Baltimore, Kansas City, MO  64105-1614

PIPER JAFFRAY INC.
222 South Ninth Street, Minneapolis, MN 55402-3804

PIPER TRUST COMPANY
222 South Ninth Street, Minneapolis, MN 55402-3804


CUSTODIAN AND ACCOUNTING AGENT
- --------------------------------------------------------------------------------
INVESTORS FIDUCIARY TRUST COMPANY
801 Pennsylvania, Kansas City, MO 64105-1307


INDEPENDENT AUDITORS
- --------------------------------------------------------------------------------
KPMG PEAT MARWICK LLP
4200 Norwest Center, Minneapolis, MN  55402


LEGAL COUNSEL
- --------------------------------------------------------------------------------
DORSEY & WHITNEY LLP
220 South Sixth Street, Minneapolis, MN  55402



FOR MORE INFORMATION


By Phone [GRAPHIC]

800 866-7778


FOR GENERAL INFORMATION

press 5, our Mutual Fund Services representatives are ready to answer
your questions.


TO ORDER LITERATURE

press 5, ask a service representative to mail you additional literature,
including a Quarterly Update. You can also request to be put on a mailing list
to receive this information automatically each quarter.


By Mail [GRAPHIC]

Piper Capital Management
Attn: Mutual Fund Services
222 South Ninth Street
Minneapolis, MN 55402-3804


In an effort to reduce costs to our shareholders, we have implemented a process
to reduce duplicate mailings of the funds' 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 Mutual
Fund Services area at  800 866-7778, or mail a request to us.


On-Line  [GRAPHIC]

http://www.piperjaffray.com/
<PAGE>

INCOME FUNDS


INTERNATIONAL GROWTH FUNDS
- --------------------------------------------------------------------------------
Emerging Markets Growth Fund
Pacific-European Growth Fund

U.S. GROWTH FUNDS
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Small Company Growth Fund
Emerging Growth Fund
Growth Fund

GROWTH AND INCOME FUNDS
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Growth and Income Fund
Balanced Fund

INCOME FUNDS
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Government Income Fund
Intermediate Bond Fund
Adjustable Rate Mortgage Securities Fund

TAX-EXEMPT INCOME FUNDS
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National Tax-Exempt Fund
Minnesota Tax-Exempt Fund

CASH MANAGEMENT FUNDS*
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Money Market Fund
U.S. Government Money Market Fund
Tax-Exempt Money Market Fund
Institutional Money Market Fund


Many traditional investment strategies rely on the steady, dependable investment
income generated by debt obligations of corporations and government entities.


Piper Funds provide you with the flexibility to help you pursue your financial
goals. Among our funds, we offer a spectrum of investment objectives and
convenient shareholder services to meet the varied needs of today's investors.

Contact your Piper Jaffray Investment Executive for more information, including
prospectuses, about the Piper Funds or call Mutual Fund Services at 800
866-7778. Please read the prospectuses carefully before investing or
sending money.

*An investment in a Piper money market fund is neither insured nor guaranteed by
the U.S. government and there can be no assurance that the fund will be able to
maintain a stable net asset value of $1 per share.


PIPER JAFFRAY INC., FUND DISTRIBUTOR AND NASD MEMBER.

#10400    11/1997    267-97


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