KEMPER ADJUSTABLE RATE U S GOVERNMENT FUND
N-30D, 1996-11-06
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<PAGE>   1
 
KEMPER ADJUSTABLE RATE
U.S. GOVERNMENT FUND

ANNUAL REPORT TO SHAREHOLDERS 

For the year ended August 31, 1996 offering investors the opportunity
for high current income consistent with low volatility of principal

"... We favored current coupon ARM securities over Treasuries
because of the additional yield advantage they provided."
 
                                          [KEMPER LOGO]
<PAGE>   2
 
CONTENTS

3
Economic Overview
5
Performance Update
8
Portfolio Statistics
9
Portfolio of
Investments
10
Report of
Independent Auditors
11
Financial Statements
13
Notes to
Financial Statements
18
Financial Highlights


AT A GLANCE
- --------------------------------------------------------------------------------
KEMPER ADJUSTABLE RATE
U.S. GOVERNMENT FUND TOTAL RETURNS
- --------------------------------------------------------------------------------
 
For the year ended August 31, 1996
(unadjusted for any sales charge)
 
                                 [BAR GRAPH]


<TABLE>
<S>                                                                     <C>    
CLASS A                                                                  4.55% 
CLASS B                                                                  3.79% 
CLASS C                                                                  3.82% 
LIPPER ADJUSTABLE RATE MORTGAGE FUNDS CATEGORY AVERAGE*                  3.92% 
</TABLE>

<TABLE>
<CAPTION> 

- --------------------------------------------------------------------------------
NET ASSET VALUE
- --------------------------------------------------------------------------------

                                                              AS OF     AS OF
                                                              8/31/96   8/31/95
- --------------------------------------------------------------------------------
<S>                                                          <C>       <C>
KEMPER ADJUSTABLE RATE U.S.
GOVERNMENT FUND CLASS A                                        $8.22     $8.30
- --------------------------------------------------------------------------------
KEMPER ADJUSTABLE RATE U.S.
GOVERNMENT FUND CLASS B                                        $8.23     $8.31
- --------------------------------------------------------------------------------
KEMPER ADJUSTABLE RATE U.S.
GOVERNMENT FUND CLASS C                                        $8.24     $8.32
- --------------------------------------------------------------------------------
</TABLE>
 
Returns and rankings are historical and do not represent future performance.
Returns and net asset value fluctuate. Shares are redeemable at current net
asset value, which may be more or less than original cost.

*Lipper Analytical Services, Inc. returns and rankings are based upon changes in
net asset value with all dividends reinvested and do not include the effect of
sales charges and, if they had, results may have been less favorable.

- --------------------------------------------------------------------------------
KEMPER ADJUSTABLE RATE
U.S. GOVERNMENT FUND RANKINGS*
- --------------------------------------------------------------------------------

COMPARED TO ALL OTHER FUNDS IN THE LIPPER ADJUSTABLE RATE MORTGAGE FUNDS
CATEGORY
 
<TABLE>
<CAPTION>
                   CLASS A      CLASS B      CLASS C
- --------------------------------------------------------------------------------
<S>                <C>          <C>          <C>
1-YEAR              #43 OF       #49 OF       #48 OF
                   56 FUNDS     56 FUNDS     56 FUNDS
- --------------------------------------------------------------------------------
5-YEAR             #2 OF 16       N/A          N/A
- --------------------------------------------------------------------------------
</TABLE>
 
- --------------------------------------------------------------------------------
DIVIDEND REVIEW
- --------------------------------------------------------------------------------
 
THE FOLLOWING TABLE SHOWS PER SHARE DIVIDEND AND YIELD INFORMATION FOR THE FUND
AS OF AUGUST 31, 1996.
 
<TABLE>
<CAPTION>
                    CLASS A     CLASS B     CLASS C
- --------------------------------------------------------------------------------
<S>                 <C>         <C>         <C>
ONE-YEAR INCOME:    $0.4486     $0.3886     $0.3913
- --------------------------------------------------------------------------------
AUGUST DIVIDEND:    $0.0365     $0.0314     $0.0318
- --------------------------------------------------------------------------------
ANNUALIZED
DISTRIBUTION
RATE+:                5.33%       4.58%       4.63%
- --------------------------------------------------------------------------------
SEC YIELD+:           5.25%       4.67%       4.64%
- --------------------------------------------------------------------------------
</TABLE>
 
+Current annualized distribution rate is the latest monthly dividend shown as an
annualized percentage of net asset value on August 31, 1996. Distribution rate
simply measures the level of dividends and is not a complete measure of
performance. The SEC yield is net investment income per share earned over the
month ended August 31, 1996, shown as an annualized percentage of the maximum
offering price on that date. The SEC yield is computed in accordance with a
standardized method prescribed by the Securities and Exchange Commission.

TERMS TO KNOW     

AVERAGE ANNUAL TOTAL RETURN Average annual total return is a fund's total return
expressed as an annualized average, adjusted for the maximum sales charge for
Class A shares or the applicable contingent deferred sales charge in effect at
the end of the period for Class B and C shares.

ADJUSTABLE RATE MORTGAGES (ARMS) ARMs are mortgages whose interest rates adjust
periodically based on changes to a corresponding index rate. To protect the
borrower against dramatic rate increases in a short period of time, ARMs are
often originated with interest rate caps. An interest rate cap assures the
borrower that the rate will not adjust beyond a certain point within a specific
period.
 
DURATION Duration is a measure of the interest rate sensitivity of a
fixed-income portfolio incorporating time to maturity and coupon size. The
longer the duration, the greater the interest rate risk.
 
TOTAL RETURN A fund's total return figure measures both the net investment
income and any realized and unrealized appreciation or depreciation of the
underlying investments in its portfolio for the period. Total return assumes the
reinvestment of all dividends and it represents the aggregate percentage or
dollar value change over the period.
<PAGE>   3
 
ECONOMIC OVERVIEW

[STEPHEN B. TIMBERS PH0T0]
 
Stephen B. Timbers is president, chief investment and executive officer of
Zurich Kemper Investments, Inc. (ZKI). ZKI and its affiliates manage
approximately $79 billion in assets, including $45 billion in retail
mutual funds. Timbers is a graduate of Yale University and holds an M.B.A. from
Harvard University.
 
DEAR SHAREHOLDER,
 
Concerns about rising interest rates, the possibility of higher price inflation
and Federal Reserve tightening of credit continue to contribute to considerable
market volatility. But while the professional traders tend to debate over every
economic release, individuals who invest in mutual funds for the long term have
been wise to stay the course. Indeed, several recent economic measures are quite
reassuring and argue in favor of a continued healthy economy with low inflation.

        The economy expanded at a 4.2% annual rate in the second quarter, the
fastest pace since the second quarter of 1994. This robust growth is welcome in
general but has tended to roil markets, which fear strong growth will lead to
overheating and inflationary pressures. So far, however, such fears have been
largely unwarranted. With the exception of food prices, whose increases were
weather-related, there have been no significant signs of inflationary
pressures. As it has so often recently, the economy is in the process of
slowing itself down. While the Federal Reserve Board stands by ready to attempt
to moderate economic growth with either interest rate cuts or
 
ECONOMIC GUIDEPOSTS

Economic activity is a key influence on investment performance and shareholder
decision-making. Periods of recession or boom, inflation or deflation, credit
expansion or credit crunch have a significant impact on mutual fund
performance.

        The following are some significant economic guideposts and their
investment rationale that may help your investment decision-making. The 10-year
Treasury rate and the prime rate are prevailing interest rates. The other data
report year-to-year percentage changes.

                                 [BAR GRAPH]


<TABLE>
<CAPTION>

                          NOW (9/30/96)  6 MONTHS AGO  1 YEAR AGO  2 YEARS AGO
- --------------------------------------------------------------------------------
<S>                           <C>            <C>          <C>        <C>
10-year Teasury rate(1)       6.83           6.51          6.04       7.74
Prime rate(2)                 8.25           8.25          8.75       7.75
Inflation rate(3)                3           2.9           2.81       2.61
The U.S. dollar(4)            3.32           8.94         -1.05      -5.28
Capital goods orders(5)       6.12           3.98         13.61      15.74
Industrial production(5)      3.5            2.56          1.92       6.77
Employment growth(6)          2.01           1.76          2.16       3.3

</TABLE>



(1)     Falling interest rates in recent years have been a big plus for 
        financial assets.

(2)     The interest rate that commercial lenders charge their best borrowers.

(3)     Inflation reduces an investor's real return. In the last five years,
        inflation has been as high as 6%. The low, moderate inflation of the
        last few years has  meant high real returns.

(4)     Changes in the exchange value of the dollar impact U.S. exporters and
        the value of U.S. firms' foreign profits.

(5)     These influence corporate profits and equity performance.

(6)     An influence on family income and retail sales.

*  Data as of August 31, 1996.

SOURCE: ECONOMICS DEPARTMENT, ZURICH KEMPER INVESTMENTS, INC.


                                      3
<PAGE>   4
ECONOMIC OVERVIEW
 
increases, such intervention can run the risk of going too far in one direction.
It appears that our economy today is self-regulating.

  Based on these snapshots of the economy, then, we look for a relatively calmer
remainder of the year. Our forecast calls for growth to slow down in the fourth
quarter, to result in an advance of about 2.5% for the entire year. Assuming
that bond and stock market investors concur that there is no chance of an
overheating economy or significantly rising interest rates, the markets should
relax, as well.

  Our market forecast 10 months into the year is not much different from what we
forecasted in January. The bond market, which is climbing back from a decline
this year, may produce a 5% total return in 1996. The stock market, after the
correction is completed, may advance 10% to 15% for the year. Naturally, future
market conditions cannot be predicted with assurance.

  In addition, we are projecting that long-term (30-year) interest rates will
hover in the 6.5% to 7.0% range. Short-term interest rates may drop below their
current levels. Finally, we would be surprised if the Federal Reserve Board
moved to adjust interest rates more than 25 basis points either way for the
remainder of the year.

  Given the economic environment, we do not look for an upset in the upcoming
presidential election. Much more interesting will be which party wins the most
congressional seats. If the Democrats regain control of Congress, a bond market
sell-off could occur.

  While U.S. markets are expected to provide modest returns, we continue to
advocate the benefits of diversification into alternate markets. Many overseas
markets are forecasted to grow at a rate well above our 2.5% growth expectation
for the U.S., and there are many equity and fixed-income opportunities abroad.
The value of the U.S. dollar, always a concern to international investors, will
probably not strengthen much against other currencies for the foreseeable
future.

  With that as an economic backdrop, we encourage you to read the following
detailed report of your fund, including an interview with your fund's portfolio
management. Thank you for your continued support. We appreciate the opportunity
to serve your investment needs.
 
Sincerely,
 
Stephen B. Timbers
 
STEPHEN B. TIMBERS
PRESIDENT, CHIEF INVESTMENT AND EXECUTIVE OFFICER
Zurich Kemper Investments, Inc.
 
October 15, 1996
 
                                      4
 
<PAGE>   5
PERFORMANCE UPDATE

[VANDENBERG PHOTO]

RICHARD VANDENBERG JOINED ZURICH KEMPER INVESTMENTS, INC. (ZKI) IN MARCH 1996,
AND IS A SENIOR VICE PRESIDENT OF ZKI AND PORTFOLIO CO-MANAGER OF KEMPER
ADJUSTABLE RATE U.S. GOVERNMENT FUND. VANDENBERG HAS MORE THAN 22 YEARS OF
FIXED-INCOME PORTFOLIO MANAGEMENT EXPERIENCE. HE RECEIVED BOTH A BACHELORS
DEGREE AND M.B.A. FROM THE UNIVERSITY OF WISCONSIN.

[BYRNES PHOTO]

ELIZABETH BYRNES JOINED ZURICH KEMPER INVESTMENTS, INC. IN 1982 AND IS A FIRST
VICE PRESIDENT OF ZKI AND PORTFOLIO CO-MANAGER OF KEMPER ADJUSTABLE RATE U.S.
GOVERNMENT FUND. BYRNES RECEIVED HER B.S. DEGREE FROM MIAMI UNIVERSITY AND IS A
CERTIFIED PUBLIC ACCOUNTANT.

THE VIEWS EXPRESSED IN THIS REPORT REFLECT THOSE OF THE PORTFOLIO MANAGEMENT
TEAM ONLY THROUGH THE END OF THE PERIOD OF THE REPORT, AS STATED ON THE COVER.
THE MANAGERS' VIEWS ARE SUBJECT TO CHANGE AT ANY TIME, BASED
ON MARKET AND OTHER CONDITIONS. 

IN THE LAST TWELVE MONTHS, THE GOVERNMENT BOND  MARKET SAW A PRECIPITOUS
DECLINE IN MARKET YIELDS ONLY TO BE FOLLOWED BY A SOMEWHAT STRONGER ECONOMY,
WHICH FUELED HIGHER YIELDS. BELOW, PORTFOLIO MANAGERS BETH BYRNES AND RICHARD
VANDENBERG EXPLAIN HOW THEY FINE-TUNED THE FUND'S PORTFOLIO TO OPTIMIZE ITS
PERFORMANCE IN BOTH ENVIRONMENTS.
 
Q    THE FUND'S RETURNS FOR THE FISCAL YEAR PERIOD, SEPTEMBER 1995 THROUGH
AUGUST 1996, WERE SOMEWHAT LOWER THAN LAST FISCAL YEAR'S RETURNS. DID THE
INVESTMENT CLIMATE SHIFT OVER THE LAST 12 MONTHS?
 
A    Yes, the investment climate has changed dramatically over the past twelve
months. At the start of this fiscal year, the economy was growing at a slow
pace, inflation was low and as a result, interest rates were declining. By
mid-year, market rates had reversed course as the economy was gaining more
momentum than had been previously anticipated and fears of a rise in inflation
were sparked.

Q    WHAT CAUSED THESE CHANGES AND WHAT WAS THEIR EFFECT ON THE GOVERNMENT
MARKET?
 
A    During the first four months of the period, there was optimism that
negotiations occurring in Washington D.C. would lead to a balanced budget
agreement, which would produce a credible plan for reducing the federal budget
deficit. In addition, economic indicators suggested that the economy was slowing
down and that the potential existed for the Federal Reserve Board (the Fed) to
lower short-term interest rates. The Fed did in fact move in December 1995 and
January 1996, to lower interest rates. This created a very favorable environment
for the government market, and bond yields declined (prices appreciated).
 
     In February 1996, data was released which indicated that economic growth 
was improving. In addition, Federal budget negotiations had broken
down. Moreover, with the start of the presidential primaries, focus moved away
from the Federal budget and deficit reduction proposals toward other issues.
This effectively eliminated the chances for a balanced budget during the first
half of 1996. As optimism about deficit reduction began to fade and the pace of
economic growth improved, bond yields began rising (prices declined).
 
     The most dramatic rise in yields occurred in early March, when the U.S.
Department of Labor announced an unanticipated and dramatic increase in
employment growth. Many bond investors saw this data as evidence that the
economy was growing faster than its potential, or at an inflationary pace. The
news caused a sell-off in the market and yields on the two-year U.S. Treasury
jumped from 5.39 percent on March 7, 1996 to 5.74 on March 8, 1996, an increase
of 35 basis points, which was a significant move for such a short maturity
security.
 
     During the remainder of the fiscal year, the government market traded in a
choppy pattern as
 
 
                                      5
<PAGE>   6
PERFORMANCE UPDATE
 
economic indicators gave mixed signals about the ongoing pace of economic
growth. At the close of the period, the two-year Treasury yield had risen to
6.35 percent.
 
Q    WAS PERFORMANCE IMPACTED BY RISING INTEREST RATES?
 
A    Both the performance of the government bond market and Kemper Adjustable
Rate U.S. Government Fund were both adversely impacted by the upward tick in
interest rates that began occurring in early 1996. During the first half of the
year, we had expected interest rates to decline. With this expectation, we
positioned the fund with a longer than average duration. Remember, the longer a
fund's duration, the more sensitive it is to interest rate changes. As rates
decline, a longer duration supports more price appreciation of an asset than a
shorter duration would given the same circumstances.
 
     Early in the year, some economic data began to suggest that the economy was
gaining some momentum. So by March, we had repositioned the fund's duration and
portfolio for a more stable interest rate environment, rather than for a
declining interest rate environment. Unfortunately, like the rest of the bond
market, we had not anticipated the strong March employment report. As a result,
the corresponding and subsequent increase in market yields hurt the fund's
performance.
 
     On a more positive note, the higher interest rate environment that 
persisted throughout the remainder of the period did provide enough
incremental income for the fund's dividend to be increased. This increase in
income generated from the higher market rates also offset some of the price
depreciation of the fund's holdings.
 
Q    HOW DID YOU ADJUST THE PORTFOLIO TO RESPOND TO THE CHANGING MARKET
CONDITIONS?
 
A    Our primary course of action was to shorten the duration of the fund as it
was apparent that rates would continue to rise. We shortened duration by
increasing the fund's exposure to current coupon adjustable rate mortgages
(ARMs) and by selling teaser rate ARMs and three- to five-year Treasuries. We
favored current coupon ARM securities over Treasuries because of the additional
yield advantage they provided.
 
     As rates rose, fears of mortgage prepayments began to fade, making current
coupon ARMs even more appealing. As the name suggests, current coupon ARMs (also
called fully-indexed ARMs) pay the current interest rate available in the market
at the time of their issue. Current coupon ARMs are attractive investments when
interest rates are stable or rising because they have shorter durations. Because
of their shorter duration, they reset to market rates more frequently and
therefore can provide competitive rates of income.
 
Q    WHAT'S AHEAD FOR THE GOVERNMENT MARKET?
 
A    We expect moderate economic growth to continue, but not at an inflationary
pace. Even given the current environment, it looks as if rates will remain
relatively stable through the remainder of 1996, which would be positive for the
government market and Kemper Adjustable Rate U.S. Government Fund. In such an
environment, we would continue to favor fully-indexed ARMs because of their
yield advantage over Treasuries.
 
Q    WHAT COULD THREATEN YOUR OUTLOOK?
 
A    The primary risk in our assumption is that economic growth would begin to
accelerate at an inflationary pace. If that were to happen, interest rates would
surely rise and we'd need to cut the fund's duration even further. But from the
current economic data available, we do not anticipate that happening.
 
                                      6
 
<PAGE>   7
PERFORMANCE UPDATE
 
<TABLE>
<CAPTION> 

- --------------------------------------------------------------------------------
Average Annual Total Returns*
- --------------------------------------------------------------------------------
 
FOR PERIODS ENDED AUGUST 31, 1996 (ADJUSTED FOR THE APPLICABLE SALES CHARGE)
 

                                                                1-YEAR     5-YEAR     LIFE OF CLASS
- ---------------------------------------------------------------------------------------------------
<S>                                                             <C>        <C>        <C>
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND 
    CLASS A                                                        0.90%      4.63%        6.19%
- ---------------------------------------------------------------------------------------------------
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND 
    CLASS B                                                        0.81%       N/A         2.71
- ---------------------------------------------------------------------------------------------------
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND 
    CLASS C                                                        3.82%       N/A         4.06
- ---------------------------------------------------------------------------------------------------
</TABLE>
 
- --------------------------------------------------------------------------------
GROWTH OF AN ASSUMED $10,000 INVESTMENT IN KEMPER ADJUSTABLE
RATE U.S. GOVERNMENT FUND CLASS A FROM 9/1/87 TO 8/31/96
- --------------------------------------------------------------------------------

                                 [LINE GRAPH]


<TABLE>
<CAPTION>
                                                       9/1/87   12/31/89    12/31/91     12/31/91     8/31/96
<S>                                                  <C>        <C>         <C>           <C>        <C>       
- ---------------------------------------------------------------------------------------------------------------
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT 
    CLASS A1                                            $10,000    $11,023     $12,054      $12,745     $13,724  
- - SALOMON BROTHERS 
    6-MONTH T-BILL**                                     10,000     11,988      13,600       15,641      17,863  
- - CONSUMER PRICE INDEX++                                 10,000     11,489      13,973       15,547      17,172  
- ---------------------------------------------------------------------------------------------------------------
</TABLE>

- --------------------------------------------------------------------------------
GROWTH OF AN ASSUMED $10,000 INVESTMENT IN KEMPER ADJUSTABLE
RATE U.S. GOVERNMENT FUND CLASS A FROM 1/1/92 TO 8/31/96
- --------------------------------------------------------------------------------
 
                                 [LINE GRAPH]

<TABLE>
<CAPTION>
                                                     1/1/92      12/31/93    12/31/94    12/31/95     8/31/96
<S>                                                 <C>          <C>          <C>        <C>         <C>
- -------------------------------------------------------------------------------------------------------------
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT 
    CLASS A1                                         $10,000      $10,739     $10,692     $11,601    $11,862      
- - LEHMAN BROTHERS ADJUSTABLE RATE 
    MORTGAGE INDEX+                                   10,000       11,130      11,131      12,433     12,851      
- - CONSUMER PRICE INDEX++                              10,000       10,573      10,856      11,131     11,385      
- -------------------------------------------------------------------------------------------------------------

</TABLE>

- --------------------------------------------------------------------------------
GROWTH OF AN ASSUMED $10,000 INVESTMENT IN KEMPER ADJUSTABLE
RATE U.S. GOVERNMENT FUND CLASS B FROM 5/31/94 TO 8/31/96
- --------------------------------------------------------------------------------


                                 [LINE GRAPH]

<TABLE>
<CAPTION>
                                                     5/31/94    12/31/94   12/31/95    8/31/96
<S>                                                 <C>          <C>        <C>        <C> 
- ------------------------------------------------------------------------------------------------
- - KEMPER ADJUSTABLE RATE U.S. GOVERNMENT 
    CLASS A1                                           $10,000     10,149      10,407     10,644
- - LEHMAN BROTHERS ADJUSTABLE RATE 
    MORTGAGE INDEX+                                     10,000     10,107      11,289     10,407
- - CONSUMER PRICE INDEX++                                10,000      9,958      10,744     10,623  
- ------------------------------------------------------------------------------------------------
</TABLE>

Past performance is not predictive of future performance. Returns and
net asset value fluctuate. Shares are redeemable at current net asset value,
which may be more or less than original cost.
 
*Average annual total return measures net investment income and capital
gain or loss from portfolio investments, assuming reinvestment of dividends and
for Class A shares adjustment for the maximum sales charge of 3.5%, for Class B
shares adjustment for the applicable contingent deferred sales charge (CDSC) of
3% and for C shares no adjustment for sales charge. The maximum B share CDSC is
4%. For C shares purchased after 4/1/96 there is a 1% CDSC on certain
redemptions within the first year of purchase.
 
Please note the Kemper Adjustable Rate  U.S. Government Fund was previously the
Kemper Enhanced Government Income Fund. The fund's investment objective and
policies were changed on 1/1/92. Prior to the changes, the fund's objective was
to seek high current return by investing primarily in U.S. Government
securities. Since the change, the fund's objective has been to seek high current
income consistent with low volatility of principal. The fund seeks its new
objective by investing primarily in adjustable rate U.S. Government securities.
The first chart represents the life of fund performance (since 9/1/87) and the
following charts represent the fund's performance under its new objective (since
1/1/92).
 
(1)Performance includes reinvestment of dividends and adjustment for the
applicable sales charge in effect at the end of the period. In comparing the
Kemper Adjustable Rate U.S. Government Fund performance to the Lehman Brothers
Adjustable Rate Index, you should also note that the fund's performance reflects
the maximum sales charge, while no such charges are reflected in the performance
of the index.
 
**Salomon Brothers 6-month T-Bill Index is an unmanaged index based on the
average monthly yield of a 6-month Treasury Bill. Rates of Treasury obligations
are fixed at issuance, and payment of principal and interest is backed by the
U.S. Treasury. Market value will generally fluctuate inversely with interest
rates prior to maturity and will equal par at maturity. Due to their short
maturities, Treasury Bills experience very low market volatility.
 
+The Lehman Brothers Adjustable Rate Index is a broad market capitalization     
index of the agency Adjustable Rate Mortgage market. All securities in the index
have coupons that periodically adjust based on a spread over a published index,
and all are government agency guaranteed. Source is Lehman Brothers.
 
++The Consumer Price Index is a statistical measure of change, over time, in
the prices of goods and services in major expenditure groups for all urban
consumers.
 
                                       7
 
<PAGE>   8
PERFORMANCE UPDATE
 
- --------------------------------------------------------------------------------
GROWTH OF AN ASSUMED $10,000 INVESTMENT IN KEMPER ADJUSTABLE
RATE U.S. GOVERNMENT FUND CLASS C FROM 5/31/94 TO 8/31/96
- --------------------------------------------------------------------------------

                                 [LINE GRAPH]

<TABLE>
<CAPTION>
                                                       5/31/94    12/31/94   12/31/95    8/31/96
<S>                                                   <C>         <C>        <C>        <C>
- - KEMPER ADJUSTABLE RATE U.S. 
    GOVERNMENTAL C1                                    $10,000    $ 9,973    $10,750    $10,940
- - LEHMAN BROTHERS ADJUSTABLE RATE          
    MORTGAGE INDEX+                                     10,000     10,107     11,289     11,669
- - CONSUMER PRICE INDEX++                                10,000     10,149     10,407     10,644
</TABLE>                                   

PORTFOLIO STATISTICS    
 
PORTFOLIO COMPOSITION*
 
                                  [PIE CHART]


<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------
                                            ON 8/31/96                 ON 8/31/95
<S>                                         <C>                        <C>
GOVERNMENT AGENCIES ARMS                         82%                        91%
- -----------------------------------------------------------------------------------
FIXED RATE AGENCY SECURITIES                      1                          1
- -----------------------------------------------------------------------------------
GOVERNMENT BONDS:
   SHORT-TERM                                    11                         --
- -----------------------------------------------------------------------------------
   INTERMEDIATE-TERM                              6                          8
- -----------------------------------------------------------------------------------
                                                100%                       100%
 
<CAPTION>  

DURATION
 

                                            ON 8/31/96                 ON 8/31/95
- ---------------------------------------------------------------------------------
<S>                                         <C>                        <C>
DURATION                                    3.1 YEARS                  4.7 YEARS
- ---------------------------------------------------------------------------------
</TABLE>

* Portfolio composition and holdings are subject to change.
 


                                       8
 
<PAGE>   9
PORTFOLIO OF INVESTMENTS

KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND
Portfolio of Investments at August 31, 1996
(Dollars in thousands)
 

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------
                                                               COUPON                         PRINCIPAL
U.S. GOVERNMENT OBLIGATIONS                 TYPE                RATE           MATURITY        AMOUNT          VALUE
- ---------------------------------------------------------------------------------------------------------------------
<S>                                <C>                      <C>                <C>            <C>             <C>
U.S. TREASURY                      Notes                    8.875%               1997          $  4,000       $ 4,126
SECURITIES - 23.2%                                          9.00-9.25            1998            17,000        17,820
(Cost: $22,181)
                                   ==================================================================================
                                                                                                               21,946
- ---------------------------------------------------------------------------------------------------------------------
FEDERAL HOME LOAN                  Adjustable rate          7.972                2019             7,978         8,292
MORTGAGE CORPORATION -             mortgages (a)            7.875                2020             2,144         2,204
68.9%                                                       7.132-7.875          2022            18,867        19,288
(Cost: $64,984)                                             7.365-7.689          2023            12,358        12,604
                                                            7.51                 2024             6,568         6,740
                                                            7.346                2025            10,059        10,298
                                                            7.00                 2026             5,000         5,098
                                   Fixed rate               11.25                2010               425           467
                                   collateralized           11.00                2014                98           106
                                   mortgage obligations
                                   ==================================================================================
                                                                                                               65,097
- ---------------------------------------------------------------------------------------------------------------------
FEDERAL NATIONAL                   Adjustable rate          6.999                2019             3,963         4,068
MORTGAGE ASSOCIATION -             mortgages (a)            7.652-7.767          2021             4,237         4,373
13.1%                                                       5.90                 2025             3,846         3,936
(Cost: $12,342)
                                   ==================================================================================
                                                                                                               12,377
- ---------------------------------------------------------------------------------------------------------------------
GOVERNMENT NATIONAL                Pass-through             11.00                2018               434           480
MORTGAGE ASSOCIATION -             certificates
 .5%
(Cost: $487)
- ---------------------------------------------------------------------------------------------------------------------
                                   TOTAL INVESTMENTS--105.7%
                                   (Cost: $99,994)                                                             99,900
                                   ==================================================================================
                                   LIABILITIES, LESS CASH AND OTHER ASSETS--(5.7)%                             (5,423)
                                   ==================================================================================
                                   NET ASSETS--100%                                                           $94,477
                                   ==================================================================================
</TABLE>
 
- --------------------------------------------------------------------------------
NOTES TO PORTFOLIO OF INVESTMENTS
- --------------------------------------------------------------------------------
 
(a) Adjustable rate securities. The coupon rates on these securities vary with a
selected index at specified intervals and the rates shown above are the
effective rates on August 31, 1996. The dates shown represent the final maturity
of the obligations.
 
Based on the cost of investments of $99,994,000 for federal income tax purposes
at August 31, 1996, the gross unrealized appreciation was $262,000, the gross
unrealized depreciation was $356,000 and the net unrealized depreciation of
securities was $94,000.
 
See accompanying Notes to Financial Statements.
 



                                       9
 
<PAGE>   10
REPORT OF INDEPENDENT AUDITORS
 
THE BOARD OF TRUSTEES AND SHAREHOLDERS
KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND
 
  We have audited the accompanying statement of assets and liabilities,
including the portfolio of investments, of Kemper Adjustable Rate U.S.
Government Fund as of August 31, 1996, the related statement of operations for
the year then ended, the statement of changes in net assets for each of the two
years in the period then ended, and the financial highlights for each of the
fiscal periods since 1992. These financial statements and financial highlights
are the responsibility of the Fund's management. Our responsibility is to
express an opinion on these financial statements and 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 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. Our procedures included confirmation of investments owned as of
August 31, 1996, by correspondence with the custodian and brokers. 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 financial highlights referred to
above present fairly, in all material respects, the financial position of Kemper
Adjustable Rate U.S. Government Fund at August 31, 1996, the results of its
operations for the year then ended, the changes in its net assets for each of
the two years in the period then ended, and the financial highlights for each of
the fiscal periods since 1992, in conformity with generally accepted accounting
principles.
 
                                                               ERNST & YOUNG LLP
 
                                          Chicago, Illinois
                                          October 16, 1996
 


                                      10
 
<PAGE>   11
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES

AUGUST 31, 1996
(IN THOUSANDS)
 
<TABLE>
<S>                                                                                            <C>
- -------------------------------------------------------------------------------------------------------
  ASSETS
- -------------------------------------------------------------------------------------------------------

Investments, at value
(Cost: $99,994)                                                                                $ 99,900
- -------------------------------------------------------------------------------------------------------
Cash                                                                                              1,028
- -------------------------------------------------------------------------------------------------------
Receivable for:
  Fund shares sold                                                                                   11
- -------------------------------------------------------------------------------------------------------
  Investments sold                                                                                7,797
- -------------------------------------------------------------------------------------------------------
  Interest                                                                                        1,220
- -------------------------------------------------------------------------------------------------------
    TOTAL ASSETS                                                                                109,956
=======================================================================================================
 
  LIABILITIES AND NET ASSETS
- -------------------------------------------------------------------------------------------------------
Payable for:
  Dividends                                                                                         126
- -------------------------------------------------------------------------------------------------------
  Fund shares redeemed                                                                               55
- -------------------------------------------------------------------------------------------------------
  Investments purchased                                                                          15,168
- -------------------------------------------------------------------------------------------------------
  Management fee                                                                                     43
- -------------------------------------------------------------------------------------------------------
  Administrative services fee                                                                        16
- -------------------------------------------------------------------------------------------------------
  Custodian and transfer agent fees and related expenses                                             37
- -------------------------------------------------------------------------------------------------------
  Trustees' fees and other                                                                           34
- -------------------------------------------------------------------------------------------------------
    Total liabilities                                                                            15,479
- -------------------------------------------------------------------------------------------------------
NET ASSETS                                                                                     $ 94,477
=======================================================================================================
 ANALYSIS OF NET ASSETS
- -------------------------------------------------------------------------------------------------------

Paid-in capital                                                                                $105,477
- -------------------------------------------------------------------------------------------------------
Accumulated net realized loss on investments                                                    (11,624)
- -------------------------------------------------------------------------------------------------------
Net unrealized depreciation on investments                                                          (94)
- -------------------------------------------------------------------------------------------------------
Undistributed net investment income                                                                 718
- -------------------------------------------------------------------------------------------------------
NET ASSETS APPLICABLE TO SHARES OUTSTANDING                                                    $ 94,477
=======================================================================================================
 THE PRICING OF SHARES
- -------------------------------------------------------------------------------------------------------
CLASS A SHARES
  Net asset value and redemption price per share
  ($86,993,000 / 10,578,000 shares outstanding)                                                   $8.22
- -------------------------------------------------------------------------------------------------------
  Maximum offering price per share
  (net asset value, plus 3.63% of
  net asset value or 3.50% of offering price)                                                     $8.52
- -------------------------------------------------------------------------------------------------------
CLASS B SHARES
  Net asset value and redemption price
  (subject to contingent deferred sales charge) per share
  ($6,298,000 / 765,000 shares outstanding)                                                       $8.23
- -------------------------------------------------------------------------------------------------------
CLASS C SHARES
  Net asset value and redemption price
  (subject to contingent deferred sales charge) per share
  ($1,186,000 / 144,000 shares outstanding)                                                       $8.24
=======================================================================================================
</TABLE>
 
See accompanying Notes to Financial Statements.
 
                                      11
 
<PAGE>   12
FINANCIAL STATEMENTS
 
STATEMENT OF OPERATIONS

YEAR ENDED AUGUST 31, 1996
(IN THOUSANDS)
 
<TABLE>
<S>                                                                                              <C>
- -------------------------------------------------------------------------------------------------------
 NET INVESTMENT INCOME
- -------------------------------------------------------------------------------------------------------
Interest income                                                                                  $7,561
- -------------------------------------------------------------------------------------------------------
Expenses:
  Management fee                                                                                    627
- -------------------------------------------------------------------------------------------------------
  Distribution services fee                                                                          51
- -------------------------------------------------------------------------------------------------------
  Administrative services fee                                                                       230
- -------------------------------------------------------------------------------------------------------
  Custodian and transfer agent fees and related expenses                                            378
- -------------------------------------------------------------------------------------------------------
  Professional fees                                                                                  37
- -------------------------------------------------------------------------------------------------------
  Reports to shareholders                                                                            23
- -------------------------------------------------------------------------------------------------------
  Trustees' fees and other                                                                           18
- -------------------------------------------------------------------------------------------------------
    Total expenses                                                                                1,364
- -------------------------------------------------------------------------------------------------------
NET INVESTMENT INCOME                                                                             6,197
=======================================================================================================
 NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
- -------------------------------------------------------------------------------------------------------
  Net realized gain on sales of investments (including options purchased)                            80
- -------------------------------------------------------------------------------------------------------
  Net realized loss from futures transactions                                                      (100)
- -------------------------------------------------------------------------------------------------------
    Net realized loss                                                                               (20)
- -------------------------------------------------------------------------------------------------------
  Change in net unrealized appreciation on investments                                             (928)
- -------------------------------------------------------------------------------------------------------
Net loss on investments                                                                            (948)
- -------------------------------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                                             $5,249
=======================================================================================================

</TABLE>

STATEMENT OF CHANGES IN NET ASSETS
 
(IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                               YEAR ENDED AUGUST 31,
                                                                            1996                  1995
<S>                                                                       <C>                  <C>
 OPERATIONS, DIVIDENDS AND CAPITAL SHARE ACTIVITY
  Net investment income                                                   $  6,197                  9,245
- ---------------------------------------------------------------------------------------------------------
  Net realized loss                                                            (20)                (3,301)
- ---------------------------------------------------------------------------------------------------------
  Change in net unrealized appreciation/depreciation                          (928)                 2,153
- ---------------------------------------------------------------------------------------------------------
Net increase in net assets resulting from operations                         5,249                  8,097
- ---------------------------------------------------------------------------------------------------------
Net equalization charges                                                      (272)                  (591)
- ---------------------------------------------------------------------------------------------------------
Distribution from net investment income                                     (6,117)                (9,118)
- ---------------------------------------------------------------------------------------------------------
Net decrease from capital share transactions                               (34,140)               (71,446)
- ---------------------------------------------------------------------------------------------------------
TOTAL DECREASE IN NET ASSETS                                               (35,280)               (73,058)
=========================================================================================================
 NET ASSETS
- ---------------------------------------------------------------------------------------------------------

Beginning of year                                                          129,757                202,815
- ---------------------------------------------------------------------------------------------------------
END OF YEAR (including undistributed net investment income
of $718,000 and $904,000, respectively)                                   $ 94,477                129,757
=========================================================================================================
</TABLE>
 
                                                                12
 
<PAGE>   13
NOTES TO FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
1    DESCRIPTION OF THE
     FUND                    Kemper Adjustable Rate U.S. Government Fund is an
                             open-end management investment company organized as
                             a business trust under the laws of Massachusetts.
                             The Fund offers four classes of shares. Class A
                             shares are sold to investors subject to an initial
                             sales charge. Class B shares are sold without an
                             initial sales charge but are subject to higher
                             ongoing expenses than Class A shares and a
                             contingent deferred sales charge payable upon
                             certain redemptions. Class B shares automatically
                             convert to Class A shares six years after issuance.
                             Class C shares are sold without an initial sales
                             charge but are subject to higher ongoing expenses
                             than Class A shares and, for shares sold on or
                             after April 1, 1996, a contingent deferred sales
                             charge payable upon certain redemptions within one
                             year of purchase. Class C Shares do not convert
                             into another class. Class I shares (none sold
                             through August 31, 1996) are offered to a limited
                             group of investors, are not subject to initial or
                             contingent deferred sales charges and have lower
                             ongoing expenses than other classes. Differences in
                             class expenses will result in the payment of
                             different per share income dividends by class. Each
                             share represents an identical interest in the
                             investments of the Fund and has the same rights.
 
- --------------------------------------------------------------------------------
2    SIGNIFICANT
     ACCOUNTING POLICIES     INVESTMENT VALUATION. Investments are stated at
                             value. Fixed income securities are valued by using
                             market quotations, or independent pricing services
                             that use prices provided by market makers or
                             estimates of market values obtained from yield data
                             relating to instruments or securities with similar
                             characteristics. Exchange traded fixed income
                             options are valued at the last sale price unless
                             there is no sale price, in which event prices
                             provided by market makers are used.
                             Over-the-counter traded fixed income options are
                             valued based upon prices provided by market makers.
                             Financial futures and options thereon are valued at
                             the settlement price established each day by the
                             board of trade or exchange on which they are
                             traded. Other securities and assets are valued at
                             fair value as determined in good faith by the Board
                             of Trustees.
 
                             INVESTMENT TRANSACTIONS AND INVESTMENT INCOME.
                             Investment transactions are accounted for on the
                             trade date (date the order to buy or sell is
                             executed). Interest income is recorded on the
                             accrual basis and includes discount amortization on
                             all fixed income securities and premium
                             amortization on mortgage-backed securities.
                             Realized gains and losses from investment
                             transactions are reported on an identified cost
                             basis.
 
                                      13
 
<PAGE>   14
NOTES TO FINANCIAL STATEMENTS

- --------------------------------------------------------------------------------
                             The Fund may purchase securities with delivery or
                             payment to occur at a later date. At the time the
                             Fund enters into a commitment to purchase a
                             security, the transaction is recorded and the value
                             of the security is reflected in the net asset
                             value. The value of the security may vary with
                             market fluctuations. No interest accrues to the
                             Fund until payment takes place. At the time the
                             Fund enters into this type of transaction it is
                             required to segregate cash or other liquid assets
                             equal to the value of the securities purchased. At
                             August 31, 1996 the Fund had $5,132,000 in purchase
                             commitments outstanding (5% of net assets), with a
                             corresponding amount of assets segregated.
 
                             FUND SHARE VALUATION. Fund shares are sold and
                             redeemed on a continuous basis at net asset value
                             (plus an initial sales charge on most sales of
                             Class A shares). Proceeds payable on redemption of
                             Class B and Class C shares will be reduced by the
                             amount of any applicable contingent deferred sales
                             charge. On each day the New York Stock Exchange is
                             open for trading, the net asset value per share is
                             determined as of the earlier of 3:00 p.m. Chicago
                             time or the close of the Exchange. The net asset
                             value per share is determined separately for each
                             class by dividing the Fund's net assets
                             attributable to that class by the number of shares
                             of the class outstanding.
 
                             FEDERAL INCOME TAXES. The Fund has complied with
                             the special provisions of the Internal Revenue Code
                             available to investment companies and therefore no
                             federal income tax provision is required. The
                             accumulated net realized loss on sales of
                             investments for federal income tax purposes at
                             August 31, 1996, amounting to approximately
                             $11,606,000, is available to offset future taxable
                             gains. If not applied, the loss carryover expires
                             during the period 1997 through 2005.
 
                             DIVIDENDS TO SHAREHOLDERS. The Fund declares and
                             pays dividends of net investment income monthly and
                             any net realized capital gains annually, which are
                             recorded on the ex-dividend date. Dividends are
                             determined in accordance with income tax principles
                             which may treat certain transactions differently
                             than generally accepted accounting principles.
 
                             EQUALIZATION ACCOUNTING. A portion of proceeds from
                             sales and cost of redemptions of Fund shares is
                             credited or charged to undistributed net investment
                             income so that income per share available for
                             distribution is not affected by sales or
                             redemptions of shares.
 
                                      14
 
<PAGE>   15
NOTES TO FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
3    TRANSACTIONS WITH
     AFFILIATES              MANAGEMENT AGREEMENT. The Fund has a management
                             agreement with Zurich Kemper Investments, Inc.
                             (ZKI), and pays a management fee at an annual rate
                             of .55% of the first $250 million of average daily
                             net assets declining to .40% of average daily net
                             assets in excess of $12.5 billion. The Fund
                             incurred a management fee of $627,000 for the year
                             ended August 31, 1996.
 
                             UNDERWRITING AND DISTRIBUTION SERVICES AGREEMENT.
                             The Fund has an underwriting and distribution
                             services agreement with Kemper Distributors, Inc.
                             (KDI). Underwriting commissions paid in connection
                             with the distribution of Class A shares are as
                             follows:
 
<TABLE>                      
<CAPTION>                    
                                                                                         COMMISSIONS
                                                                                        ALLOWED BY KDI
                                                                 COMMISSIONS     ----------------------------
                                                               RETAINED BY KDI   TO ALL FIRMS   TO AFFILIATES
                                                               ---------------   ------------   -------------
                             <S>                               <C>               <C>            <C>
                             Year ended August 31, 1996            $11,000          88,000            --
</TABLE>                     
                             
                             For services under the distribution services
                             agreement, the Fund pays KDI a fee of .75% of
                             average daily net assets of the Class B and Class C
                             shares. Pursuant to the agreement, KDI enters into
                             related selling group agreements with various firms
                             at various rates for sales of Class B and Class C
                             shares. In addition, KDI receives any contingent
                             deferred sales charges (CDSC) from redemptions of
                             Class B and Class C shares. Distribution fees and
                             commissions paid in connection with the sale of
                             Class B and Class C shares and the CDSC received in
                             connection with the redemption of such shares are
                             as follows:
 
<TABLE>
<CAPTION>
                                                                                                      COMMISSIONS AND            
                                                                                                     DISTRIBUTION FEES           
                                                                           DISTRIBUTION FEES            PAID BY KDI              
                                                                           AND CDSC RECEIVED   ------------------------------    
                                                                                BY KDI         TO ALL FIRMS    TO AFFILIATES     
                                                                           -----------------   -------------   --------------    
                                          <S>                              <C>                 <C>             <C>               
                                          Year ended August 31, 1996            $70,000            65,000           5,000        
</TABLE>
 
                             ADMINISTRATIVE SERVICES AGREEMENT. The Fund has an
                             administrative services agreement with KDI. For
                             providing information and administrative services
                             to Class A, Class B and Class C shareholders, the
                             Fund pays KDI a fee at an annual rate of up to .25%
                             of average daily net assets of each class. KDI in
                             turn has various agreements with financial services
                             firms that provide these services and pays these
                             firms based on assets of Fund accounts the firms
                             service. Administrative services fees (ASF) paid
                             are as follows:
 
<TABLE>                      
<CAPTION>                    
                                                                                        ASF PAID BY KDI
                                                                ASF PAID BY      -----------------------------
                                                              THE FUND TO KDI    TO ALL FIRMS    TO AFFILIATES
                                                              ----------------   -------------   -------------
                             <S>                              <C>                <C>             <C>
                             Year ended August 31, 1996           $230,000          231,000          5,000
</TABLE>                     
                             
                             SHAREHOLDER SERVICES AGREEMENT. Pursuant to a
                             services agreement with the Fund's transfer agent,
                             Kemper Service Company (KSvC) is the shareholder
                             service agent of the Fund. Under the agreement,
                             KSvC received shareholder services fees of $302,000
                             for the year ended August 31, 1996.
 
                                      15
 
<PAGE>   16
NOTES TO FINANCIAL STATEMENTS

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

                             OFFICERS AND TRUSTEES. Certain officers or trustees
                             of the Fund are also officers or directors of ZKI.
                             For the year ended August 31, 1996, the Fund made
                             no payments to its officers and incurred trustees'
                             fees of $15,000 to independent trustees.
 
- --------------------------------------------------------------------------------
4    INVESTMENT
     TRANSACTIONS            For the year ended August 31, 1996, investment
                             transactions (excluding short-term instruments) are
                             as follows (in thousands):
 
                             Purchases                                  $337,779
 
                             Proceeds from sales                         370,173
 
- --------------------------------------------------------------------------------
5    CAPITAL SHARE
     TRANSACTIONS            The following table summarizes the activity in
                             capital shares of the Fund (in thousands):
 
<TABLE>
<CAPTION>
                                                                          YEAR ENDED AUGUST 31,
                                                         -------------------------------------------------------
                                                         SHARES  1996  AMOUNT            SHARES   1995  AMOUNT
                                    <S>                  <C>          <C>                <C>           <C>
                                    ----------------------------------------------------------------------------
                                     SHARES SOLD
                                    ----------------------------------------------------------------------------
                                     Class A               3,196        $26,308           4,898       $  39,971
                                    ----------------------------------------------------------------------------
                                     Class B                 352          2,925             605           4,993
                                    ----------------------------------------------------------------------------
                                     Class C                 126          1,046             169           1,399
                                    ----------------------------------------------------------------------------
                                     SHARES ISSUED IN 
                                     REINVESTMENT OF 
                                     DIVIDENDS
                                    ----------------------------------------------------------------------------
                                     Class A                 500          4,138             737           6,072
                                    ----------------------------------------------------------------------------
                                     Class B                  27            224              24             195
                                    ----------------------------------------------------------------------------
                                     Class C                   6             51               6              49
                                    ----------------------------------------------------------------------------
                                     SHARES REDEEMED
                                    ----------------------------------------------------------------------------
                                     Class A              (8,043)       (66,310)        (14,546)       (119,011)
                                    ----------------------------------------------------------------------------
                                     Class B                (182)        (1,513)           (478)         (3,932)
                                    ----------------------------------------------------------------------------
                                     Class C                (122)        (1,009)           (142)         (1,182)
                                    ----------------------------------------------------------------------------
                                     CONVERSION OF SHARES
                                    ----------------------------------------------------------------------------
                                     Class A                  14            113              31             262
                                    ----------------------------------------------------------------------------
                                     Class B                 (14)          (113)            (31)           (262)
                                    ----------------------------------------------------------------------------
                                     NET DECREASE FROM
                                     CAPITAL SHARE 
                                     TRANSACTIONS                      $(34,140)                      $ (71,446)
                                    ----------------------------------------------------------------------------
</TABLE>
 
                                      16
 
<PAGE>   17
NOTES TO FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
6    FINANCIAL FUTURES
     CONTRACTS               The Fund has entered into exchange traded financial
                             futures contracts to take advantage of anticipated
                             market conditions and bears the risk that arises
                             from entering into these contracts.
 
                             At the time the Fund enters into a futures
                             contract, it is required to segregate liquid assets
                             with its custodian. Subsequently, gain or loss is
                             recognized and payments are made on a daily basis
                             between the Fund and its broker as the market value
                             of the futures contract changes. At August 31,
                             1996, the market value of assets segregated by the
                             Fund was $6,517,000 for the following financial
                             futures contracts owned by the Fund.
 
<TABLE>
<CAPTION>
                                                   FACE                   EXPIRATION    LOSS AT
                                     TYPE         AMOUNT      POSITION       MONTH      8/31/96
                               -----------------------------------------------------------------
                               <S>              <C>           <C>         <C>           <C>
                               U.S. Treasury
                               Note             $5,988,000    Long        Sept. '96     $(15,000)
</TABLE>
 
                                      17
 
<PAGE>   18
FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                                    -----------------------------------------------
                                                                        CLASS A
                                                    -----------------------------------------------
                                                              YEAR ENDED AUGUST 31,
                                                    -----------------------------------------------
                                                    1996      1995     1994     1993     1992
                                                    ----      ----     ----     ----     ----
<S>                                                 <C>       <C>      <C>      <C>      <C>  
- ---------------------------------------------------------------------------------------------------
 PER SHARE OPERATING PERFORMANCE
- ---------------------------------------------------------------------------------------------------
Net asset value, beginning of year                  $8.30     8.33     8.68     8.63      8.37
- ---------------------------------------------------------------------------------------------------
Income from investment operations:
  Net investment income                               .46      .48      .34      .47       .63
- ---------------------------------------------------------------------------------------------------
  Net realized and unrealized gain (loss)            (.09)    (.04)    (.29)     .02       .22
- ---------------------------------------------------------------------------------------------------
Total from investment operations                      .37      .44      .05      .49       .85
- ---------------------------------------------------------------------------------------------------
Less distribution from net investment income          .45      .47      .40      .44       .59
- ---------------------------------------------------------------------------------------------------
Net asset value, end of year                        $8.22     8.30     8.33     8.68      8.63
- ---------------------------------------------------------------------------------------------------
TOTAL RETURN                                         4.55%    5.52      .59     5.87     10.56
- ---------------------------------------------------------------------------------------------------
 RATIOS TO AVERAGE NET ASSETS
- ---------------------------------------------------------------------------------------------------
Expenses                                             1.15%    1.10      .93      .21       .28
- ---------------------------------------------------------------------------------------------------
Net investment income                                5.49     5.76     3.96     5.44      7.02
- ---------------------------------------------------------------------------------------------------
</TABLE>
 
<TABLE>
<CAPTION>
                                         -------------------------------------     -----------------------------------------
                                                        CLASS B                                     CLASS C
                                         -------------------------------------     -----------------------------------------

                                                                                                                         
                                                                     MAY 31,                                  MAY 31,    
                                         YEAR ENDED AUGUST 31,       1994 TO       YEAR ENDED AUGUST 31,      1994 TO    
                                         ---------------------      AUGUST 31,     ---------------------     AUGUST 31,  
                                          1996            1995         1994        1996            1995         1994
                                         -------         -----      ----------     ------         ------     -----------
<S>                                      <C>              <C>       <C>            <C>             <C>       <C>      
- ------------------------------------------------------------------------------     -----------------------------------------
 PER SHARE OPERATING PERFORMANCE
- ------------------------------------------------------------------------------     -----------------------------------------
Net asset value, beginning of period      $8.31            8.32           8.37      8.32            8.33           8.37
- ------------------------------------------------------------------------------     -----------------------------------------
Income from investment operations:
  Net investment income                     .40             .43            .07       .40             .43            .08
- ------------------------------------------------------------------------------     -----------------------------------------
  Net realized and unrealized loss         (.09)           (.04)          (.04)     (.09)           (.04)          (.04)
- ------------------------------------------------------------------------------     -----------------------------------------
Total from investment operations            .31             .39            .03       .31             .39            .04
- ------------------------------------------------------------------------------     -----------------------------------------
Less distribution from net investment
income                                      .39             .40            .08       .39             .40            .08
- ------------------------------------------------------------------------------     -----------------------------------------
Net asset value, end of period            $8.23            8.31           8.32      8.24            8.32           8.33
==============================================================================     =========================================
TOTAL RETURN (NOT ANNUALIZED)              3.79%           4.84            .34      3.82            4.89            .47
- ------------------------------------------------------------------------------     -----------------------------------------
 RATIOS TO AVERAGE NET ASSETS (ANNUALIZED)
- ------------------------------------------------------------------------------     -----------------------------------------
Expenses                                   1.89%           1.85           1.96      1.89            1.79           1.88
- ------------------------------------------------------------------------------     -----------------------------------------
Net investment income                      4.75            5.01           3.36      4.75            5.07           3.52
- ----------------------------------------------------------------------------------------------------------------------------
 SUPPLEMENTAL DATA FOR ALL CLASSES
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                          YEAR ENDED AUGUST 31,
                                          1996        1995        1994        1993        1992
<S>                                      <C>         <C>         <C>         <C>         <C>     <C>
- -----------------------------------------------------------------------------------------------------
Net assets at end of year (in thousands) $94,477     129,757     202,815     212,694     174,967
- -----------------------------------------------------------------------------------------------------
Portfolio turnover rate                      272%        308         533         138         309
- -----------------------------------------------------------------------------------------------------
</TABLE>
 
NOTES: ZKI agreed to waive its management fee and absorb certain operating
expenses during a portion of the fiscal year ended August 31, 1992. Thereafter,
these expenses were gradually reinstated from December 31, 1992 through January
31, 1994. Without this agreement, the ratios of expenses and net investment
income to average net assets for Class A shares would have been .99% and 3.90%
for the year ended August 31, 1994, .95% and 4.70% for the year ended August 31,
1993, and .90% and 6.40% for the year ended August 31, 1992.
 
Total return does not reflect the effect of any sales charges.
 
                                      18
 
<PAGE>   19
                                    NOTES
 
                                      19
 
<PAGE>   20
TRUSTEES&OFFICERS
 
TRUSTEES
 
STEPHEN B. TIMBERS
President and Trustee

DAVID W. BELIN
Trustee

LEWIS A. BURNHAM
Trustee
 
DONALD L. DUNAWAY
Trustee
 
ROBERT B. HOFFMAN
Trustee
 
DONALD R. JONES
Trustee
 
DOMINIQUE P. MORAX
Trustee
 
SHIRLEY D. PETERSON
Trustee
 
WILLIAM P. SOMMERS
Trustee

OFFICERS

J. PATRICK BEIMFORD, JR.
Vice President
 
ELIZABETH A. BYRNES
Vice President
 
CHARLES R. MANZONI, JR.
Vice President
 
JOHN E. NEAL
Vice President
 
RICHARD L. VANDENBERG
Vice President
 
PHILIP J. COLLORA
Vice President
and Secretary
 
JEROME L. DUFFY
Treasurer
 
ELIZABETH C. WERTH
Assistant Secretary
 
- --------------------------------------------------------------------------------
LEGAL COUNSEL                 VEDDER, PRICE, KAUFMAN & KAMMHOLZ
                              222 North LaSalle Street
                              Chicago, IL 60601
 
- --------------------------------------------------------------------------------
SHAREHOLDER SERVICE AGENT     KEMPER SERVICE COMPANY
                              P.O. Box 419557
                              Kansas City, MO 64141
 
- --------------------------------------------------------------------------------
CUSTODIAN AND TRANSFER AGENT  INVESTORS FIDUCIARY TRUST COMPANY
                              127 West 10th Street
                              Kansas City, MO 64105
 
- --------------------------------------------------------------------------------
INDEPENDENT AUDITORS          ERNST & YOUNG LLP
                              233 South Wacker Drive
                              Chicago, IL 60606
 
- --------------------------------------------------------------------------------
INVESTMENT MANAGER            ZURICH KEMPER INVESTMENTS, INC.
 
PRINCIPAL UNDERWRITER         KEMPER DISTRIBUTORS, INC.
                              222 South Riverside Plaza  Chicago, IL 60606
                              http://www.kemper.com
 
[RECYCLE LOGO]
Printed on recycled paper.
This report is not to be distributed
unless preceded or accompanied by a
Kemper Fixed Income Fund prospectus.
                                                             [KEMPER FUNDS LOGO]
                                                                         1023310
KARGF - 2 (10/96)                                          Printed in the U.S.A.
 


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