THOMPSON PLUMB FUNDS INC
N-30D, 1999-01-27
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<PAGE>   1


                           THOMPSON PLUMB FUNDS, INC.


January 15, 1999
                          ANNUAL REPORT TO SHAREHOLDERS
Dear Fellow Shareholder:

We are proud to present you the following report depicting the investments and
returns of our family of mutual funds for the period ending November 30, 1998.
Last year was another very strong year for the performance of our
equity-oriented funds. The goals for each fund are as follows:

THOMPSON PLUMB BALANCED FUND
This Fund seeks to realize a combination of income and capital appreciation,
which will result in the highest total return while assuming reasonable risk.
The Balanced Fund invests in a diversified portfolio of common stocks and fixed
income securities.

THOMPSON PLUMB BOND FUND
This Fund seeks a high level of current income while at the same time preserving
investment capital. The Bond Fund invests primarily in a diversified portfolio
of investment-grade debt securities.

THOMPSON PLUMB GROWTH FUND
This Fund seeks a high level of long-term growth primarily through capital
appreciation, while at the same time assuming reasonable risk. The Growth Fund
invests primarily in a diversified portfolio of common stocks and securities
convertible into common stocks. Although current income is not a primary
objective of the Growth Fund, the Fund anticipates that capital growth will be
accompanied by growth through dividend income.

We hope that you find the report clear and concise and that it provides you with
a sufficient amount of detailed information in order to be able to review your
investment. Please visit our web site (http://www.thompsonplumb.com) for updated
daily information or call with any comments or questions.

Sincerely,



/s/ John W. Thompson            /s/ Thomas G. Plumb
- ---------------------           ---------------------
John W. Thompson, CFA           Thomas G. Plumb, CFA
Chairman & Secretary            President & Treasurer




<PAGE>   2

                           THOMPSON PLUMB FUNDS, INC.
                         ANNUAL REPORT TO SHAREHOLDERS
                                        
                               November 30, 1998
                                        
                                    CONTENTS
<TABLE>
<CAPTION>

                                                                         Page(s)
<S>                                                                       <C>
REPORT TO SHAREHOLDERS . . . . . . . . . . . . . . . . . . . . . . .          1

INVESTMENT REVIEWS
  Balanced Fund. . . . . . . . . . . . . . . . . . . . . . . . . . .          4
  Bond Fund. . . . . . . . . . . . . . . . . . . . . . . . . . . . .          5
  Growth Fund. . . . . . . . . . . . . . . . . . . . . . . . . . . .          6

FINANCIAL STATEMENTS
  Statements of assets and liabilities . . . . . . . . . . . . . . .          7
  Schedules of investments . . . . . . . . . . . . . . . . . . . . .       8-12
  Statements of operations . . . . . . . . . . . . . . . . . . . . .         13
  Statements of changes in net assets. . . . . . . . . . . . . . . .         14
  Notes to financial statements. . . . . . . . . . . . . . . . . . .      15-19
  Financial highlights . . . . . . . . . . . . . . . . . . . . . . .      20-22

REPORT OF INDEPENDENT ACCOUNTANTS. . . . . . . . . . . . . . . . . .         23
</TABLE>

        This annual report is authorized for distribution to prospective
        investors only when preceded or accompanied by a Fund prospectus
      which contains facts concerning the Funds' objectives and policies,
                  management, expenses, and other information.


                                       3



<PAGE>   3


                           THOMPSON PLUMB FUNDS, INC.
                         ANNUAL REPORT TO SHAREHOLDERS
                                        
                               November 30, 1998
                                        
                        BALANCED FUND INVESTMENT REVIEW

The Balanced Fund posted an 11.63 percent return for the twelve months ended
November 30, 1998, its fourth consecutive year of double digit returns and
seventh in the last ten years. The Fund ranked in the top 45 percent of all
balanced funds for the one-year period and in the top 6 percent, 8 percent and
40 percent for the three-, five- and ten- year periods, respectively*. Our
common stock exposure, near the high end of the 75 percent maximum allowed,
contributed to our relative outperformance during the past three and five years.

1998 proved to be a volatile year as financial disruptions in Southeast Asia and
Russia ripped through the U.S. common stock and bond markets. As the crisis
intensified during the late summer, investors sought the safest of all
securities, U.S. Treasury bonds. Intensive buying of Treasury bonds pushed
interest rates to the lowest point since the U.S. Government began issuing the
30-year Treasury securities. The Federal Reserve eased the crisis by lowering
short-term interest rates three times for a total of three-quarters of one
percent. The U.S. economy proved to be very resilient despite international
events and maintained a robust growth rate in the third and fourth quarters of
the year. Consumers remained upbeat because of low unemployment and solid income
growth. The Fund benefited from the remarkable recovery in the equity markets
during the last quarter of the year as investors realized the impact of
international events was less severe than originally anticipated.

We remain committed to finding opportunities in the equity markets. The major
common stock indexes are being pushed to new highs by a narrow group of large
companies with high valuations. We believe that more value exists in smaller and
medium capitalization companies and in selected large growth companies with
reasonable valuations. While corrections in common stock valuations will occur
from time to time, we believe that common stocks will provide superior long-term
investment performance. Our current plan is to maintain the Fund's common stock
exposure near the top end of the asset allocation range.

Sincerely,


/s/ Thomas G. Plumb
- -------------------
Thomas G. Plumb
Portfolio Manager

*As measured by Lipper, Inc. out of 393, 280, 153 and 56 balanced funds for the
one-year, three-year, five-year and ten-year periods ended 11/30/98,
respectively.

             COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT
                          THOMPSON PLUMB BALANCED FUND
                             HISTORICAL PERFORMANCE
                               NOVEMBER 30, 1998
<TABLE>
<CAPTION>
                   
                  DATE         TPA       S&P 500     LEHMAN
                  ----         ---       -------     ------
                  <S>        <C>         <C>         <C>
                  Nov 88     10,000      10,000      10,000
                  Nov 89     12,046      13,082      11,256
                  Nov 90     12,188      12,629      12,154
                  Nov 91     14,425      15,198      13,785
                  Nov 92     15,998      18,005      14,935
                  Nov 93     16,482      19,824      16,390
                  Nov 94     16,836      20,032      16,090
                  Nov 95     20,375      27,440      18,429
                  Nov 96     25,632      35,085      19,502
                  Nov 97     31,114      45,087      20,736
                  Nov 98     34,733      55,755      22,576

                  ------------------------------------
                      AVERAGE ANNUAL TOTAL RETURN
                  ------------------------------------
                      1 Year     5 Year   10 Year
                  ------------------------------------
                     11.63%     16.08%    13.26%
                  ------------------------------------
</TABLE>

            PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE PERFORMANCE

                                       4




<PAGE>   4

                           THOMPSON PLUMB FUNDS, INC.
                         ANNUAL REPORT TO SHAREHOLDERS
                                        
                               November 30, 1998
                                        
                          BOND FUND INVESTMENT REVIEW

The Bond Fund had an excellent year, gaining 9.34 percent for 1998. Also, the
three-year and five-year annualized returns increased to 6.17 percent and 5.78
percent, respectively. In the fourth quarter, the Bond Fund gained 2.62 percent,
comprised of interest income plus appreciation of the bonds held.

The asset allocation for the Bond Fund was substantially unchanged over the past
three months. Corporate bonds continue to make up 96.7 percent of the Fund's
assets while short-term investments total 3.3 percent. Currently, "A" rated
Corporate bonds are producing over 1% per year higher returns than the
equivalent maturities of U.S. Treasury bonds. The quality of the bonds that are
held within the Fund remains high as we continue to emphasize bonds of large,
well-known, major U.S. corporations rated "A" or higher.

The Federal Reserve has been monitoring the world economic picture and lowered
interest rates for the third time last quarter. If it perceives the economy to
be slowing further, the Federal Reserve could lower interest rates again.
However, in our view, there is a remote possibility that the economy could begin
to heat up and cause the Federal Reserve to raise interest rates to quell
inflation. We are also monitoring the economy and we see few signs of inflation
on the horizon, but we do see signs that wages have begun to increase due to
many shortages of skilled workers. With the current duration of the Fund at 5.4
years and the average time to maturity at 7.0 years, we believe that we are
managing the Fund to reach an optimum balance between the movement of interest
rates and the need to produce income for you.

In conclusion, the Bond Fund had a very solid 1998 and is positioned to provide
income with relatively low credit risk or interest rate risk.


Sincerely,



/s/ John W. Thompson
- --------------------
John W. Thompson
Portfolio Manager


             COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT
                            THOMPSON PLUMB BOND FUND
                             HISTORICAL PERFORMANCE
                               NOVEMBER 30, 1998
<TABLE>
<CAPTION>
                   
                        DATE           TPA         LEHMAN           
                        ----           ---         ------           
                        <S>          <C>           <C>               
                        Feb 92       10,000        10,000            
                        Nov 92       10,480        10,615            
                        Nov 93       11,395        11,649            
                        Nov 94       11,058        11,436            
                        Nov 95       12,612        13,098            
                        Nov 96       13,181        13,861            
                        Nov 97       13,806        14,738            
                        Nov 98       15,096        16,045            

                      --------------------------------------
                           AVERAGE ANNUAL TOTAL RETURN
                      --------------------------------------
                        1 Year     5 Year   Since Inception
                      --------------------------------------
                        9.34%      5.78%          6.24%  
                      --------------------------------------
</TABLE>

            PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE PERFORMANCE

                                       5



<PAGE>   5

                           THOMPSON PLUMB FUNDS, INC.
                         ANNUAL REPORT TO SHAREHOLDERS
                                        
                               November 30, 1998
                                        
                         GROWTH FUND INVESTMENT REVIEW

The overall stock market and the Growth Fund experienced another very positive
year. It was the fourth year in a row of strong gains in the U.S. stock market.
While a major decline took place in the third quarter, the recovery in the
fourth quarter allowed the Fund to attain a total return of 13.74 percent for
its fiscal year. The Growth Fund ranked in the top 40 percent for the past
calendar year among all General Equity Funds, according to Lipper, Inc. But more
significantly, the Growth Fund ranked in the top 10 percent nationally in this
group for both the three-year and five-year periods.* The average annual total
returns were 26.04 percent and 21.57 percent, respectively, for the three- and
five-year periods.

In 1998 the popular stock market averages were propelled by a sensational year
for large capitalization pharmaceutical, telecommunications and technology
issues. By contrast, most large companies producing commodity-oriented products
and smaller-sized companies lagged behind these market indicators. Since the
Growth Fund has a number of holdings in smaller and more value-oriented stocks,
its performance was somewhat hindered on a relative basis. However, these issues
continue to represent attractive values and should help the Fund perform well in
the future.

The major holdings in the Growth Fund are somewhat more conservative now than
they were a year ago. In view of the extended bull market of the past several
years, we are attempting to reduce the volatility of the Fund. Our focus remains
on stocks whose valuations are judged as reasonable relative to their earnings
growth prospects.

We have been making good progress in improving our Fund's performance rankings,
as demonstrated by its three- and five-year returns. We are confident that our
investment philosophy will continue to provide excellent risk-adjusted returns
in the future. This remains our goal for you in the years ahead.

Sincerely,



/s/ John W. Thompson
- --------------------
John W. Thompson
Portfolio Manager

*Ranking refers to the front-end, load-adjusted return in the General Equity
category as supplied by Lipper, Inc. The Growth Fund ranked 1205 out of 3323,
173 of 1972, 126 of 1224, and 225 of 735 funds for the one-year, three-year,
five-year, and since-inception periods ended 12/31/98, respectively.


             COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT
                           THOMPSON PLUMB GROWTH FUND
                             HISTORICAL PERFORMANCE
                               NOVEMBER 30, 1998
<TABLE>
<CAPTION>
                   
                        DATE           TPA         S&P 500           
                        ----           ---         -------           
                        <S>          <C>           <C>               
                        Feb 92       10,000        10,000            
                        Nov 92       10,185        10,695            
                        Nov 93       10,235        11,775            
                        Nov 94       10,215        11,899            
                        Nov 95       13,573        16,299            
                        Nov 96       18,394        20,840            
                        Nov 97       23,894        26,781            
                        Nov 98       27,177        33,118            

                      --------------------------------------
                           AVERAGE ANNUAL TOTAL RETURN
                      --------------------------------------
                        1 Year     5 Year   Since Inception
                      --------------------------------------
                       13.74%     21.57%         15.82%  
                      --------------------------------------
</TABLE>

            PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE PERFORMANCE



<PAGE>   6


                           THOMPSON PLUMB FUNDS, INC.
                      STATEMENTS OF ASSETS AND LIABILITIES
                               November 30, 1998
                    (In thousands, except per share amounts)
<TABLE>
<CAPTION>
                                                 BALANCED     BOND       GROWTH
                                                   FUND       FUND        FUND
                                                 --------   --------    --------
<S>                                              <C>        <C>         <C>
ASSETS
 Investments, at market value (Cost $38,840,
   $30,658, and $56,456, respectively)
   Common stocks...........................      $ 33,498          -    $ 68,385
   Bonds...................................        12,782   $ 31,151           -
   Short-term investments..................         1,091      1,077         153
                                                 --------   --------    --------
                                                   47,371     32,228      68,538
 Prepaid expenses..........................             6          5           8
 Due from sale of securities...............           558          -           -
 Dividends and interest receivable.........           245        478          51
                                                 --------   --------    --------
     Total Assets..........................        48,180     32,711      68,597
                                                 --------   --------    --------

LIABILITIES
 Due on purchase of securities.............           804          -           -
 Accrued expenses payable..................            22         16          29
 Due to investment advisor.................            39         22          62
                                                 --------   --------    --------
     Total Liabilities.....................           865         38          91
                                                 --------   --------    --------
NET ASSETS.................................      $ 47,315   $ 32,673    $ 68,506
                                                 ========   ========    ========
Net Assets consist of:
 Capital stock ($.001 par value)...........      $ 35,737   $ 30,903    $ 50,706
 Undistributed net investment income.......           488        419           -
 Net realized gain (loss) on investments...         2,559       (219)      5,718
 Net unrealized appreciation on
  investments..............................         8,531      1,570      12,082
                                                 --------   --------    --------
     Net Assets............................      $ 47,315   $ 32,673    $ 68,506
                                                 ========   ========    ========
 Shares of capital stock outstanding
  (100,000 shares authorized)..............         2,605      2,990       1,677

 Offering and redemption price/Net asset
  value per share..........................      $  18.16   $  10.93    $  40.85
                                                 ========   ========    ========
</TABLE>


                        See Notes to Financial Statments

                                       7




<PAGE>   7

                           THOMPSON PLUMB FUNDS, INC.
                                        
                            SCHEDULES OF INVESTMENTS
                               NOVEMBER 30, 1998


<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                                 BALANCED FUND
- --------------------------------------------------------------------------------
                                                     Shares or
                                                     Principal        Market
                                                      Amount          Value
                                                      ------          -----
<S>                                                   <C>          <C>
COMMON STOCKS - 70.7%

 BASIC MATERIALS - 1.3%
  FiberMark (a)....................................   49,000       $  633,938
                                                                   ----------
 CAPITAL GOODS - 10.5%
  Advanced Lighting (a)............................   80,000          700,000
  Danaher..........................................   12,000          547,500
  General Electric.................................   10,500          950,250
  Howmet International (a).........................   57,500          884,062
  Minnesota Mining & Manufacturing.................   10,000          803,125
  Xerox............................................   10,000        1,075,000
                                                                   ----------
                                                                    4,959,937
                                                                   ----------
 CONSUMER PRODUCTS - 7.4%
  Discount Auto Parts (a)..........................   20,000          498,750
  Gillette.........................................   18,000          826,875
  PepsiCo..........................................   28,000        1,083,250
  Philip Morris....................................   20,000        1,118,750
                                                                   ----------
                                                                    3,527,625
                                                                   ----------
 ENERGY - 2.9%
  Chevron..........................................    6,500          543,562
  Exxon............................................   11,000          825,688
                                                                   ----------
                                                                    1,369,250
                                                                   ----------
 FINANCIAL SERVICES - 10.3%
  Associated Banc-Corp.............................   12,500          426,563
  Bank One.........................................   16,000          821,000
  BankAmerica......................................   12,000          782,250
  CIT Group - Class A..............................   15,000          420,938
  Fannie Mae.......................................   10,500          763,875
  Household International..........................   17,500          684,688
  Merrill Lynch....................................   10,000          750,000
  Towne Services (a)...............................   30,000          225,000
                                                                   ----------
                                                                    4,874,314
                                                                   ----------

 HEALTH CARE - 9.8%
  Abbott Laboratories..............................   12,000       $  576,000
  BioChem Pharma (a)...............................   25,000          609,375
  Johnson & Johnson................................   12,000          975,000
  Medco Research (a)...............................    8,000          162,000
  Merck & Co.......................................    8,800        1,362,900
  Sofamor Danek Group (a)..........................    8,500          950,406
                                                                   ----------
                                                                    4,635,681
                                                                   ----------
 RETAIL - 3.9%
  AutoZone (a).....................................   15,000          451,875
  Fastenal.........................................   20,000          825,000
  Lands' End (a)...................................   25,000          564,063
                                                                   ----------
                                                                    1,840,938
                                                                   ----------
 Services - 5.1%
  CBS (a)..........................................   20,000          596,250
  Disney, Walt.....................................   20,000          643,750
  Merrill..........................................   30,000          510,000
  New York Times - Class A.........................   21,000          652,312
                                                                   ----------
                                                                    2,402,312
                                                                   ----------
 Technology - 14.4%
  EMC (a)..........................................   16,000        1,160,000
  JDA Software Group (a)...........................   35,000          280,000
  Lattice Semiconductor (a)........................   20,000          737,500
  Linear Technology................................   15,000        1,050,938
  Microchip Technology (a).........................   36,500        1,270,656
  Oracle (a).......................................   30,000        1,027,500
  Parametric Technology (a)........................   37,500          637,500
  Zebra Technologies - Class A (a).................   20,000          671,250
                                                                   ----------
                                                                    6,835,344
                                                                   ----------
 Telecommunications - 5.1%
  ADC Telecommunications (a).......................   28,000          836,500
  Ameritech........................................    3,000          162,375
  Northern Telecom Limited.........................   15,000          700,312
  SBC Communications...............................   15,000          719,062
                                                                   ----------
                                                                    2,418,249
                                                                   ----------

  TOTAL COMMON STOCKS
   (COST $25,318,414)..............................                33,497,588
                                                                   ----------
</TABLE>



                       See Notes to Financial Statements.

                                       8




<PAGE>   8

                           THOMPSON PLUMB FUNDS, INC.

                            SCHEDULES OF INVESTMENTS
                               NOVEMBER 30, 1998
                                  (Continued)

                                                     Shares or
                                                     Principal          Market
                                                      Amount            Value 
                                                     ---------          ------
BONDS - 27.0%

 CORPORATE BONDS - 23.6%
  Aetna Services
   6.375% Due 08/15/03 .....................         1,000,000       $ 1,009,571
  Aetna Services
   7.125% Due 08/15/06 .....................         2,000,000         2,096,618
  American Home Products
   7.900% Due 02/15/05 .....................         1,000,000         1,129,440
  General Electric Capital
   8.750% Due 05/21/07 .....................           640,000           772,422
  Johnson Controls
   6.300% Due 02/01/08 .....................         2,000,000         2,070,582
  Philip Morris
   6.375% Due 02/01/06 .....................         1,000,000         1,025,157
  Thermo Electron Cvt 
   4.250% Due 01/01/03 .....................         1,500,000         1,320,000
  Union Pacific
   6.000% Due 09/01/03 .....................           685,000           676,986
  Wisconsin Power & Light
   7.000% Due 06/15/07 .....................         1,000,000         1,094,150
                                                                     -----------
  Total Corporate Bonds ....................                          11,194,926
                                                                     -----------
 UNITED STATES GOVERNMENT
   AND AGENCY ISSUES - 3.4%
  United States Treasury Notes
   6.500% Due 05/31/02 .....................         1,500,000         1,587,187
                                                                     -----------
  Total United States Government
   and Agency Issues .......................                           1,587,187
                                                                     -----------
  TOTAL BONDS
   (COST $12,429,930) ......................                          12,782,113
                                                                     -----------


SHORT-TERM INVESTMENTS - 2.3%

 VARIABLE RATE DEMAND NOTES - 2.3%
  Firstar Bank .............................         1,090,757       $ 1,090,757
                                                                     -----------

  Total Variable Rate Demand Notes .........                           1,090,757
                                                                     -----------

  TOTAL SHORT-TERM INVESTMENTS
   (COST $1,090,757) .......................                           1,090,757
                                                                     -----------

  TOTAL INVESTMENTS - 100.0%
   (COST $38,839,101) ......................                         $47,370,458
                                                                     ===========


(a) Non-income producing


                       See Notes to Financial Statements.

                                       9




<PAGE>   9
                           THOMPSON PLUMB FUNDS, INC.

                            SCHEDULES OF INVESTMENTS
                               NOVEMBER 30, 1998
                                  (Continued)

- --------------------------------------------------------------------------------
                                   BOND FUND
- --------------------------------------------------------------------------------
                                                     Shares or
                                                     Principal          Market
                                                      Amount            Value 
                                                     ---------          ------
BONDS - 96.7%

CORPORATE BONDS - 96.7%
 American Home Products
  7.900% Due 02/15/05 ......................         1,000,000        $1,129,440
 Anheuser-Busch
  7.100% Due 06/15/07 ......................         1,000,000         1,074,880
 Associates Corp.                              
  7.240% Due 08/15/06 ......................         1,000,000         1,088,051
 AT & T
  7.000% Due 05/15/05 ......................         1,000,000         1,085,201
 Beneficial Corp.                               
  6.850% Due 10/03/07 ......................         1,000,000         1,054,828
 Dayton Hudson
  6.400% Due 02/15/03 ......................         1,000,000         1,029,791
 Disney, Walt
  6.750% Due 03/30/06 ......................         1,000,000         1,080,726
 duPont, E. I. de Nemours
  6.750% Due 09/01/07 ......................         1,000,000         1,093,405
 General Electric Capital
  8.750% Due 05/21/07 ......................         1,000,000         1,206,909
 Hartford Life
  6.900% Due 06/15/04 ......................         1,000,000         1,047,075
 Hartford Life
  7.100% Due 06/15/07 ......................           500,000           533,936
 Hershey Foods
  6.700% Due 10/01/05 ......................         1,000,000         1,076,843
 Johnson Controls
  6.300% Due 02/01/08 ......................         1,000,000         1,035,291
 Lucent Technologies
  7.250% Due 07/15/06 ......................         1,000,000         1,118,846
 Madison Gas & Electric
  6.020% Due 09/15/08 ......................           500,000           504,966
 Michigan Consolidated Gas
  7.210% Due 05/01/07 ......................           500,000           545,092
 Morgan, J. P.                                 
  6.700% Due 11/01/07 ......................         1,000,000        $1,046,566
 NationsBank
  6.690% Due 04/03/02 ......................         1,000,000         1,034,147
 Northern Trust
  7.300% Due 09/15/06 ......................         1,000,000         1,090,023
 Norwest Financial
  6.250% Due 11/01/02 ......................         1,000,000         1,023,821
 Penney, J. C.                               
  7.600% Due 04/01/07 ......................         1,000,000         1,097,572
 Philip Morris
  9.000% Due 01/01/01 ......................         1,000,000         1,068,936
 Philip Morris
  7.650% Due 07/01/08 ......................           500,000           558,629
 Schwab, Charles
  6.520% Due 05/27/08 ......................         1,000,000         1,030,100
 Sears, Roebuck
  6.700% Due 11/15/06 ......................         1,000,000         1,054,885
 SmithKline Beecham
  7.375% Due 04/15/05 ......................           965,000         1,065,652
 Travelers Property & Casualty
  6.750% Due 04/15/01 ......................         1,000,000         1,024,627
 Tribune
  6.875% Due 11/01/06 ......................         1,000,000         1,065,222
 Wal-Mart Stores
  7.500% Due 05/15/04 ......................         1,000,000         1,108,487
 Wells Fargo
  7.125% Due 08/15/06 ......................         1,000,000         1,082,731
 Wisconsin Power & Light
  7.000% Due 06/15/07 ......................         1,000,000         1,094,150
                                                                     -----------
 Total Corporate Bonds .....................                          31,150,828
                                                                     -----------

 TOTAL BONDS
  (COST $29,581,448) .......................                          31,150,828
                                                                     -----------


                       See Notes to Financial Statements.


                                       10
<PAGE>   10


                           THOMPSON PLUMB FUNDS, INC.
                                        
                            SCHEDULES OF INVESTMENTS
                               NOVEMBER 30, 1998
                                  (Continued)

<TABLE>
<CAPTION>
                                                     Shares or
                                                     Principal      Market
                                                      Amount        Value
                                                      ------        -----
<S>                                                  <C>        <C>
SHORT-TERM INVESTMENTS - 3.3%

 VARIABLE RATE DEMAND NOTES - 3.3%
   Firstar Bank....................................  970,902    $   970,902
   Wisc. Central Credit Union......................  105,941        105,941
                                                                -----------

   Total Variable Rate Demand Notes................               1,076,843
                                                                -----------

   TOTAL SHORT-TERM INVESTMENTS
     (COST $1,076,843).............................               1,076,843
                                                                -----------

   TOTAL INVESTMENTS - 100.0%
     (COST $30,658,291)............................             $32,227,671
                                                                ===========

- ---------------------------------------------------------------------------
                                 GROWTH FUND
- ---------------------------------------------------------------------------
COMMON STOCKS - 99.8%
 
 BASIC MATERIALS - 2.3%
   Sigma-Aldrich...................................  50,000     $ 1,606,250
                                                                -----------

 CAPITAL GOODS - 8.2%
   Advanced Lighting (a)........................... 125,000       1,093,750
   Howmet International (a)........................ 100,000       1,537,500
   Minnesota Mining & Manufacturing................  28,000       2,248,750  
   Xerox...........................................   7,000         752,500
                                                                -----------
                                                                  5,632,500
                                                                -----------
 CONSUMER PRODUCTS - 15.7%
   Gillette........................................  40,000       1,837,500
   Kimberly-Clark..................................  35,000       1,841,875
   PepsiCo.........................................  62,000       2,398,625
   Philip Morris...................................  52,000       2,908,750
   Wrigley, Wm. Jr. ...............................  20,000       1,762,500
                                                                -----------
                                                                 10,749,250
                                                                -----------
 ENERGY - 3.4%
   Chevron.........................................  14,000       1,170,750
   Exxon...........................................  15,000       1,125,938
                                                                -----------
                                                                  2,296,688
                                                                -----------
FINANCIAL SERVICES - 18.2%
   American International Group....................   5,000         470,000
   Associated Banc-Corp............................  22,500         767,812
   Associates First Capital - Class A..............  21,000       1,635,375
   BankAmerica.....................................  25,000       1,629,688
   CIT Group - Class A.............................  80,000       2,245,000
   Fannie Mae......................................  27,000       1,964,250
   Hartford Life - Class A.........................  20,000       1,096,250
   Household International.........................  24,000         939,000
   Merrill Lynch...................................  23,000       1,725,000
                                                                -----------
                                                                 12,472,375
                                                                -----------
</TABLE>


                       See Notes to Financial Statements.


                                       11
<PAGE>   11


                           THOMPSON PLUMB FUNDS, INC.

                            SCHEDULES OF INVESTMENTS
                               NOVEMBER 30, 1998
                                  (Continued)
                                                       Shares or
                                                       Principal        Market
                                                        Amount          Value 
                                                       ---------        ------
COMMON STOCKS - 99.8% (Continued)

 HEALTH CARE - 20.6%
  Abbott Laboratories ........................           24,000      $ 1,152,000
  BioChem Pharma (a) .........................           30,000          731,250
  Bristol-Myers Squibb .......................           10,000        1,225,625
  DENTSPLY International .....................           65,000        1,746,875
  Johnson & Johnson ..........................           21,000        1,706,250
  Medco Research (a) .........................           10,000          202,500
  Merck & Co. ................................           17,000        2,632,875
  Schein, Henry (a) ..........................           20,000          710,000
  Sofamor Danek Group (a) ....................           19,000        2,124,438
  Sybron International (a) ...................           65,000        1,616,875
  Young Innovations (a) ......................           19,000          261,250
                                                                     -----------
                                                                      14,109,938
                                                                     -----------
 RETAIL - 5.5%
  AutoZone (a) ...............................           63,000        1,897,875
  Fastenal ...................................           45,000        1,856,250
                                                                     -----------
                                                                       3,754,125
                                                                     -----------
 SERVICES - 11.1%
  BA Merchant Services - Class A (a) .........          100,000        1,675,000
  CBS (a) ....................................           76,000        2,265,750
  Merrill ....................................           33,000          561,000
  New York Times - Class A ...................           45,000        1,397,812
  Outdoor Systems (a) ........................           64,000        1,728,000
                                                                     -----------
                                                                       7,627,562
                                                                     -----------

 TECHNOLOGY - 11.3%
  Altera (a) .................................           18,000      $   883,125
  EMC (a) ....................................           12,000          870,000
  JDA Software Group (a) .....................           85,000          680,000
  Linear Technology ..........................           28,000        1,961,750
  Maxim Integrated Products (a) ..............           24,000          942,000
  Parametric Technology (a) ..................           50,000          850,000
  Sonic Foundry (a) ..........................           10,000          116,250
  Sterling Commerce (a) ......................           10,000          362,500
  Zebra Technologies - Class A (a) ...........           32,000        1,074,000
                                                                     -----------
                                                                       7,739,625
                                                                     -----------
 TELECOMMUNICATIONS - 3.5%
  SBC Communications .........................           50,000        2,396,875
                                                                     -----------


  TOTAL COMMON STOCKS
   (COST $56,303,071) ........................                        68,385,188
                                                                     -----------


SHORT-TERM INVESTMENTS - 0.2%

 VARIABLE RATE DEMAND NOTES - 0.2%
  Firstar Bank ...............................          152,633          152,633
                                                                     -----------

  Total Variable Rate Demand Notes ...........                           152,633
                                                                     -----------


  TOTAL SHORT-TERM INVESTMENTS
   (COST $152,633) ...........................                           152,633
                                                                     -----------


  TOTAL INVESTMENTS - 100.0%
   (COST $56,455,704) ........................                       $68,537,821
                                                                     ===========
(a) Non-income producing




                       See Notes to Financial Statements.

                                       12




<PAGE>   12
                           THOMPSON PLUMB FUNDS, INC.

                            STATEMENTS OF OPERATIONS
                      FOR THE YEAR ENDED NOVEMBER 30, 1998
                                 (In thousands)


                                              BALANCED  BOND      GROWTH
                                                FUND    FUND       FUND 
                                              -------- -------    -------
INVESTMENT INCOME
  Dividends ..............................    $  253         -    $  685
  Interest ...............................       783   $ 2,022        33
                                              -------  -------   -------
                                               1,036     2,022       718
                                              -------  -------   -------

EXPENSES
  Accounting services fees ...............        75        62        96
  Directors fees .........................         9         7        13
  Federal & state registration ...........        27        25        28
  Investment advisory fees ...............       358       206       581
  Professional fees ......................        26        21        33
  Other expenses .........................        53        23        76
                                              -------  -------   -------
  Total expenses .........................       548       344       827
  Less expenses reimbursable by advisor ..         -        13         -
                                              -------  -------   -------
Net expenses .............................       548       331       827
                                              -------  -------   -------
NET INVESTMENT INCOME (LOSS) .............       488     1,691      (109)
                                              -------  -------   -------
Net realized gain on investments .........     2,559       162     5,836
Net unrealized appreciation on investments     1,517     1,045     1,206
                                              -------  -------   -------
NET GAIN ON INVESTMENTS ..................     4,076     1,207     7,042
                                              -------  -------   -------
Net increase in net assets resulting from
  operations .............................    $4,564   $ 2,898   $ 6,933
                                              =======  =======   ======= 



                       See Notes to Financial Statements.

                                       13





<PAGE>   13


                           THOMPSON PLUMB FUNDS, INC.
                                        
                      STATEMENTS OF CHANGES IN NET ASSETS
                        FOR THE YEAR ENDED NOVEMBER 30,
                                 (In thousands)

<TABLE>
<CAPTION>


                                                 BALANCED FUND             BOND FUND              GROWTH FUND   
                                               -----------------        ----------------        ----------------
                                                1998        1997        1998        1997        1998        1997
                                               ------      -----        -----      -----        -----      -----
<S>                                          <C>         <C>        <C>         <C>          <C>        <C>
INCREASE IN NET ASSETS
 Operations
  Net investment income (loss) ...........    $   488     $   302     $ 1,691     $ 1,530     $  (109)    $  (135)
  Net realized gain (loss) on investments       2,559       3,492         162        (200)      5,836       4,104
  Net unrealized appreciation
   on investments ........................      1,517       1,998       1,045         120       1,206       5,098
                                              -------     -------     -------     -------     -------     -------
  Net increase in net assets resulting
   from operations .......................      4,564       5,792       2,898       1,450       6,933       9,067
                                              -------     -------     -------     -------     -------     -------

DISTRIBUTIONS TO SHAREHOLDERS
  Distributions from net investment income       (261)       (294)     (1,688)     (1,393)          -           -
  Distributions from net realized gains on
   securities transactions ...............     (3,478)     (1,724)          -           -      (3,968)     (1,838)
                                              -------     -------     -------     -------     -------     -------
 Total distributions to shareholders .....     (3,739)     (2,018)     (1,688)     (1,393)     (3,968)     (1,838)
                                              -------     -------     -------     -------     -------     -------

FUND SHARE TRANSACTIONS ..................     10,153      11,794        (674)      9,927      20,165      14,070
                                              -------     -------     -------     -------     -------     -------

TOTAL INCREASE IN NET ASSETS .............     10,978      15,568         536       9,984      23,130      21,299

NET ASSETS
 Beginning of period .....................     36,337      20,769      32,137      22,153      45,376      24,077
                                              -------     -------     -------     -------     -------     -------

 End of period ...........................    $47,315     $36,337     $32,673     $32,137     $68,506     $45,376
                                              =======     =======     =======     =======     =======     =======

 Accumulated undistributed net investment
  income included in net assets at end
  of period ..............................    $   488     $   261     $   419     $   416     $     0     $     0
</TABLE>

                       See Notes to Financial Statements.

                                       14



<PAGE>   14


                           THOMPSON PLUMB FUNDS, INC.

                         NOTES TO FINANCIAL STATEMENTS

                               NOVEMBER 30, 1998


NOTE 1 - ORGANIZATION
Thompson Plumb Funds, Inc. (the "Company") is a Wisconsin corporation registered
under the Investment Company Act of 1940, as amended (the "1940 Act"), as an
open-end, diversified management investment company.

The Company consists of separate mutual funds series (the "Funds"): Thompson
Plumb Balanced Fund (the "Balanced Fund"), Thompson Plumb Bond Fund (the "Bond
Fund"), and Thompson Plumb Growth Fund (the "Growth Fund"). The assets and
liabilities of each Fund are segregated and a shareholder's interest is limited
to the Fund in which the shareholder owns shares.

NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES
The following is a summary of significant accounting policies followed by the
Funds in the preparation of their financial statements.

SECURITY VALUATION - Portfolio securities which are traded on an exchange or in
the over-the-counter market are valued at the last sale price reported by the
exchange on which the securities are primarily traded on the day of valuation.
Securities for which there are no transactions on a given day or securities not
traded on an exchange or in the over-the-counter market are valued at the
average of the most recent bid and asked prices. Debt securities for which
market quotations are not readily available may be valued based on information
supplied by independent pricing services, including services using matrix
pricing formulas and/or independent broker bid quotations. Debt securities with
remaining maturities of 60 days or less may be valued on an amortized cost
basis, which involves valuing an instrument at its cost and thereafter assuming
a constant amortization to maturity of any discount or premium, regardless of
the impact of fluctuating rates on the market value of the instrument. Any
securities or other assets for which market quotations are not readily available
are valued at fair value as determined in good faith by the Advisor (Thompson,
Plumb & Associates, Inc.) pursuant to procedures established under the general
supervision and responsibility of the Board of Directors of Thompson Plumb
Funds, Inc.

REALIZED GAINS AND LOSSES ON SECURITIES - Gains or losses realized on sales of
securities are determined by comparing the identified cost of the security lot
sold with the net sales proceeds.

VARIABLE-RATE DEMAND NOTES - The Funds invest in short-term, variable-rate
demand notes, which are unsecured instruments. The Funds may be susceptible to
credit risk with respect to these instruments to the extent the issuer defaults
on its payment obligation. Each Fund's policy is to not purchase variable-rate
demand notes unless at the time of purchase the issuer has unsecured debt
securities outstanding that have received a rating within the two highest
categories from either Standard & Poor's (that is, A-1, A-2 or AAA, AA) or
Moody's Investors Service, Inc. (that is, Prime-1, Prime-2 or Aaa, Aa).
Accordingly, the Funds do not anticipate nonperformance of these obligations by
the issuers. 


                                       15


<PAGE>   15



                           THOMPSON PLUMB FUNDS, INC.

                         NOTES TO FINANCIAL STATEMENTS

                               NOVEMBER 30, 1998
                                  (Continued)

PERMANENT BOOK AND TAX DIFFERENCES - Generally accepted accounting principles
require that permanent financial reporting and tax differences relating to
shareholder distributions be reclassified to paid-in capital.

OTHER - Investment securities transactions are accounted for on the trade date.
Discounts and premiums on securities purchased are amortized over the life of
the respective securities on the same basis for book and tax purposes. Dividend
income is recorded on the ex-dividend date. Interest income is recorded as
earned. Each Fund is charged for those expenses that are directly attributed to
it, such as advisory, custodial, accounting services and certain shareholder
servicing fees, while other expenses that cannot be directly attributable to a
Fund are allocated among the Funds in proportion to the net assets of the
respective Fund.

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from these estimates.

NOTE 3 - INVESTMENT ADVISORY & ACCOUNTING SERVICES AGREEMENTS AND OTHER
TRANSACTIONS WITH AFFILIATES 
The Company has entered into an Advisory Agreement with Thompson, Plumb &
Associates, Inc. (the "Advisor") for management of each Fund's portfolio and for
the administration of other Fund affairs. As compensation for its services, the
Advisor receives a fee computed daily and payable monthly as follows: (i) for
the Balanced Fund, .85 of 1% of average daily net assets up to $50 million and
 .80 of 1% of average daily net assets in excess of $50 million; (ii) for the
Bond Fund, .65 of 1% of average daily net assets up to $50 million and .60 of 1%
of average daily net assets in excess of $50 million; (iii) for the Growth Fund,
1.00% of average daily net assets up to $50 million and .90 of 1% of average
daily net assets in excess of $50 million.

Pursuant to an Accounting Services Agreement, the Advisor maintains the Funds'
financial records in accordance with the 1940 Act, prepares all necessary
financial statements of the Funds, and calculates the net asset value per share
of the Funds on a daily basis. As compensation for its services, each Fund pays
the Advisor a fee computed daily and payable monthly at the annual rate of .20
of 1% of net assets up to $30 million and .125 of 1% of net assets in excess of
$30 million, with a minimum fee of $30,000 per year.


                                       16




<PAGE>   16


                           THOMPSON PLUMB FUNDS, INC.

                         NOTES TO FINANCIAL STATEMENTS
                               NOVEMBER 30, 1998
                                  (Continued)

<TABLE>
<CAPTION>

NOTE 4 - FUND SHARE TRANSACTIONS
Transactions in shares of the Funds during 1998 and 1997 were as follows:
(In thousands)                                             1998                    1997       
                                                     -----------------       -----------------
                                                     Shares    Dollars       Shares    Dollars
                                                     ------    -------       ------    -------
<S>                                               <C>        <C>          <C>        <C>
BALANCED FUND
Shares sold                                            605    $ 10,521         940    $ 14,996
Shares issued in reinvestment of dividends              16         252          19         283
Shares issued in reinvestment of realized gains        215       3,401         112       1,659
Shares redeemed                                       (232)     (4,021)       (325)     (5,144)
                                                     -----    --------       -----    --------
 Net increase                                          604    $ 10,153         746    $ 11,794
                                                     =====    ========       =====    ========

BOND FUND
Shares sold                                            576    $  6,158       1,357    $ 14,014
Shares issued in reinvestment of dividends             153       1,621         129       1,322
Shares redeemed                                       (789)     (8,453)       (527)     (5,409)
                                                     -----    --------       -----    --------
 Net increase (decrease)                               (60)   $   (674)        959    $  9,927
                                                     =====    ========       =====    ========

GROWTH FUND
Shares sold                                            629    $ 24,420         506    $ 17,157
Shares issued in reinvestment of realized gains        111       3,900          54       1,629
Shares redeemed                                       (216)     (8,155)       (141)     (4,716)
                                                     -----    --------       -----    --------
 Net increase                                          524    $ 20,165         419    $ 14,070
                                                     =====    ========       =====    ========
</TABLE>



                                       17





<PAGE>   17

                           THOMPSON PLUMB FUNDS, INC.

                         NOTES TO FINANCIAL STATEMENTS
                               NOVEMBER 30, 1998
                                  (Continued)

NOTE 5 - DISTRIBUTIONS TO SHAREHOLDERS
Distributions to shareholders from net investment income and realized gains on
securities for the Balanced Fund and the Growth Fund normally will be declared
on an annual basis within 30 days and paid within 60 days following the Funds'
fiscal year-end. Bond Fund distributions to shareholders from net investment
income normally will be declared on a quarterly basis within 30 days and paid
within 60 days following the Fund's fiscal quarter, and distributions to
shareholders from realized gains on securities normally will be declared on an
annual basis within 30 days and paid within 60 days following the Fund's fiscal
year-end. Distributions are recorded on the ex-dividend date.

Quarterly distributions from net investment income for the Bond Fund during
fiscal 1998 totaled $1,688,086 or $0.56 per share. For the period ended November
30, 1998, a capital gains distribution for the Balanced Fund and the Growth Fund
and a distribution from net investment income for the Balanced Fund and the Bond
Fund were declared December 15, 1998 payable to shareholders on December 16,
1998.

<TABLE>
<CAPTION>
                                            BALANCED FUND               BOND FUND              GROWTH FUND    
                                       ---------------------     ---------------------   ---------------------
                                          Total         Per         Total         Per       Total         Per
                                       Distribution    Share     Distribution    Share   Distribution    Share
                                       ------------    -----     ------------    -----   ------------    -----
<S>                                   <C>           <C>         <C>            <C>      <C>            <C>
Distributions to Shareholders
- -----------------------------
  1998 Net investment income           $  488,411     $ 0.19      $ 559,917      $0.22             -         -
  1998 Long-term capital gains         $2,796,329     $ 1.08              -          -    $5,457,389    $ 3.25
  1998 Short-term capital gains                -           -              -          -    $  427,581    $ 0.25
</TABLE>


                                       18




<PAGE>   18


                           THOMPSON PLUMB FUNDS, INC.

                         NOTES TO FINANCIAL STATEMENTS
                               NOVEMBER 30, 1998
                                  (Continued)



NOTE 6 - PURCHASE AND SALE OF SECURITIES
Investment transactions for the year ended November 30, 1998 were as follows:

                                      BALANCED FUND    BOND FUND     GROWTH FUND
                                      -------------    ---------     -----------
U. S. GOVERNMENT SECURITIES
- ---------------------------
   Purchases                           $ 1,715,916    $ 1,023,594           --
   Sales                               $ 2,233,016    $ 6,120,594           --

SECURITIES OTHER THAN
U. S. GOVERNMENT AND
SHORT-TERM INVESTMENTS
- ----------------------
   Purchases                           $39,093,749    $ 9,783,852    $56,950,979
   Sales                               $31,743,589    $ 5,766,248    $39,183,405


NOTE 7 - FEDERAL INCOME TAXES
No provision has been made for Federal income taxes since the Funds have elected
to be taxed as regulated investment companies and intend to distribute
substantially all income to shareholders and otherwise comply with the
provisions of the Internal Revenue Code applicable to regulated investment
companies. The Bond Fund has $18,639 of net capital losses which expire November
30, 2002 and $200,225 of net capital losses which expire November 30, 2005 that
may be used to offset capital gains in future years to the extent provided by
tax regulations.

During the period ended November 30, 1998, the Bond Fund utilized a Federal
income tax capital loss carryforward of $159,150 to offset certain realized
capital gains during the period.

During the period ended November 30, 1998, the Bond Fund utilized a post-October
capital loss carryforward of $3,031 to offset certain realized capital gains
during the period.

For Federal income tax purposes at November 30, 1998:

<TABLE>
<CAPTION>

                                               Aggregate          Aggregate
                                               unrealized         unrealized        Net unrealized
                            Aggregate cost    appreciation       depreciation       appreciation
                            of investments   for investments    for investments    for investments
                            in securities        held               held                held      
                           ---------------   ---------------    ---------------    ---------------
<S>                       <C>               <C>                <C>                 <C>
Balanced Fund               $ 39,076,907      $ 9,012,451        $  (718,900)        $ 8,293,551

Bond Fund                   $ 30,658,291      $ 1,569,380                  -         $ 1,569,380

Growth Fund                 $ 56,623,459      $13,706,257        $(1,791,895)        $11,914,362
</TABLE>

                                       19




<PAGE>   19


                           THOMPSON PLUMB FUNDS, INC.

                              FINANCIAL HIGHLIGHTS




The following table presents information relating to a share of capital stock
outstanding for the entire period.


<TABLE>
<CAPTION>
                                                                Year Ended November 30,
                                               ------------------------------------------------------
                                                 1998       1997        1996        1995        1994
                                               -------    -------     -------     -------     -------
<S>                                           <C>       <C>          <C>        <C>          <C>
    BALANCED FUND

NET ASSET VALUE, BEGINNING OF PERIOD           $ 18.16    $ 16.54     $ 14.23     $ 13.55     $ 14.17
INCOME FROM INVESTMENT OPERATIONS
- ---------------------------------
  Net investment  income                          0.19       0.18        0.19        0.24        0.27
  Net realized and unrealized gains
    on investments                                1.65       3.01        3.21        2.26        0.04
                                               -------    -------     -------     -------     -------
  TOTAL FROM INVESTMENT OPERATIONS                1.84       3.19        3.40        2.50        0.31
LESS DISTRIBUTIONS
- ------------------
  Distributions from net investment income       (0.13)     (0.23)      (0.23)      (0.28)      (0.27)
  Distributions from capital gains               (1.71)     (1.34)      (0.86)      (1.54)      (0.66)
                                               -------    -------     -------     -------     -------
  TOTAL DISTRIBUTIONS                            (1.84)     (1.57)      (1.09)      (1.82)      (0.93)

NET ASSET VALUE, END OF PERIOD                 $ 18.16    $ 18.16     $ 16.54     $ 14.23     $ 13.55
                                               =======    =======     =======     =======     =======

TOTAL RETURN                                     11.63%     21.39%      25.80%      21.02%       2.15%

RATIOS/SUPPLEMENTAL DATA
- ------------------------
  Net assets, end of period (millions)         $  47.3    $  36.3     $  20.8     $  18.1     $  17.2
  Ratios to average net assets:
    Ratio of expenses                             1.30%      1.40%       1.45%       1.49%       1.42%
    Ratio of net investment income                1.16%      1.04%       1.32%       1.71%       1.84%
  Portfolio turnover rate                        83.07%     76.66%     134.82%     111.16%     110.01%
</TABLE>

                       See Notes to Financial Statements.

                                       20










<PAGE>   20


                           THOMPSON PLUMB FUNDS, INC.
                                        
                              FINANCIAL HIGHLIGHTS
                                        
                                  (Continued)

The following table presents information relating to a share of capital stock
outstanding for the entire period.

<TABLE>
<CAPTION>
                                                                   Year Ended November 30, 
                                                 ------------------------------------------------------
                                                   1998       1997        1996        1995        1994
                                                 -------    -------     -------     -------     -------
<S>                                            <C>        <C>         <C>         <C>         <C>
   BOND FUND

NET ASSET VALUE, BEGINNING OF PERIOD             $ 10.54    $ 10.59     $ 10.67     $  9.88     $ 10.78
INCOME FROM INVESTMENT OPERATIONS
- ---------------------------------
  Net investment  income                            0.56       0.54        0.52        0.57        0.48
  Net realized and unrealized gains (losses)
    on investments                                  0.39      (0.06)      (0.07)       0.78       (0.78)
                                                 -------    -------     -------     -------     -------
  Total from Investment Operations                  0.95       0.48        0.45        1.35       (0.30)
LESS DISTRIBUTIONS
- ------------------
  Distributions from net investment income         (0.56)     (0.53)      (0.53)      (0.56)      (0.47)
  Distributions from capital gains                     -          -           -           -       (0.13)
                                                 -------    -------     -------     -------     -------
  TOTAL DISTRIBUTIONS                              (0.56)     (0.53)      (0.53)      (0.56)      (0.60)

NET ASSET VALUE, END OF PERIOD                   $ 10.93    $ 10.54     $ 10.59     $ 10.67     $  9.88
                                                 =======    =======     =======     =======     =======

TOTAL RETURN                                        9.34%      4.74%       4.51%      14.06%      (2.96%)

RATIOS/SUPPLEMENTAL DATA
- ------------------------
  Net assets, end of period (millions)           $  32.7    $  32.1     $  22.2     $  14.9     $  10.2
  Ratios to average net assets:
    Ratio of expenses                               1.04%      1.14%       1.13%       1.13%       1.00%
    Ratio of expenses without reimbursement         1.08%         -           -        1.34%       1.48%
    Ratio of net investment income                  5.30%      5.42%       5.48%       5.70%       4.83%
    Ratio of net investment income without
      reimbursement                                 5.26%         -           -        5.49%       4.34%
  Portfolio turnover rate                          35.09%     52.61%     104.43%     111.95%     165.74%
</TABLE>

                       See Notes to Financial Statements.


                                       21

<PAGE>   21

                           THOMPSON PLUMB FUNDS, INC.

                              FINANCIAL HIGHLIGHTS

                                  (Continued)

The following table presents information relating to a share of capital stock
outstanding for the entire period.

<TABLE>
<CAPTION>

                                                                 Year Ended November 30, 
                                                -----------------------------------------------------
                                                  1998       1997        1996       1995        1994
                                                -------    -------     -------    -------     -------
<S>                                            <C>       <C>         <C>        <C>         <C>
    GROWTH FUND

NET ASSET VALUE, BEGINNING OF PERIOD            $ 39.36    $ 32.79     $ 24.74    $ 20.43     $ 20.47
INCOME FROM INVESTMENT OPERATIONS
- ---------------------------------
  Net investment  loss                            (0.07)     (0.12)      (0.06)     (0.05)      (0.20)
  Net realized and unrealized gains
    on investments                                 4.92       9.16        8.66       6.22        0.16
                                                -------    -------     -------    -------     -------
  Total from Investment Operations                 4.85       9.04        8.60       6.17       (0.04)
LESS DISTRIBUTIONS
- ------------------
  Distributions from net investment income            -          -           -          -           -
  Distributions from capital gains                (3.36)     (2.47)      (0.55)     (1.86)          -
                                                -------    -------     -------    -------     -------
  TOTAL DISTRIBUTIONS                             (3.36)     (2.47)      (0.55)     (1.86)          -

NET ASSET VALUE, END OF PERIOD                  $ 40.85    $ 39.36     $ 32.79    $ 24.74     $ 20.43
                                                =======    =======     =======    =======     =======

TOTAL RETURN                                      13.74%     29.90%      35.52%     32.87%      (0.19%)

RATIOS/SUPPLEMENTAL DATA
- ------------------------
  Net assets, end of period (millions)          $  68.5    $  45.4     $  24.1    $  12.6     $   4.7
  Ratios to average net assets:
    Ratio of expenses                              1.41%      1.52%       1.58%      2.00%       2.00%
    Ratio of expenses without reimbursement           -          -           -          -        2.31%
    Ratio of net investment income                (0.19%)    (0.41%)     (0.27%)    (0.31%)     (0.49%)
    Ratio of net investment income without
      reimbursement                                   -          -           -          -       (0.80%)
  Portfolio turnover rate                         67.13%     77.66%     101.91%     86.68%     116.69%
</TABLE>

                       See Notes to Financial Statements.


                                       22





<PAGE>   22



                      [PRICEWATERHOUSECOOPERS LETTERHEAD]



                       REPORT OF INDEPENDENT ACCOUNTANTS

January 20, 1999

To the Board of Directors and Shareholders of Thompson Plumb Funds, Inc.

In our opinion, the accompanying statements of assets and liabilities, including
the schedules of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Thompson Plumb Balanced Fund,
Thompson Plumb Bond Fund and Thompson Plumb Growth Fund (constituting the
Thompson Plumb Funds, Inc., hereafter referred to as the "Funds") at November
30, 1998, the results of each of their operations, the changes in each of their
net assets and the financial highlights for the periods indicated, in conformity
with generally accepted accounting principles. These financial statements and
financial highlights (hereafter referred to as "financial statements") are the
responsibility of the Funds' management; our responsibility is to express an
opinion on these financial statements based on our audits. We conducted our
audits of these financial statements in accordance with generally accepted
auditing standards which require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits, which included confirmation of securities at November 30, 1998 by
correspondence with the custodian and brokers, provide a reasonable basis for
the opinion expressed above.


/s/ PricewaterhouseCoopers LLP
- ----------------------------------



                                       23




<PAGE>   23



                             DIRECTORS OF THE FUNDS
                                George H. Austin
                                Mary Ann Deibele
                                 John W. Feldt
                               Donald A. Nichols
                      Thomas G. Plumb, CFA: Vice President
                      Thompson,  Plumb & Associates, Inc.
                        John W. Thompson, CFA: President
                      Thompson,  Plumb & Associates, Inc.
                                        
                             OFFICERS OF THE FUNDS
                             John W. Thompson, CFA
                              Chairman & Secretary
                              Thomas G. Plumb, CFA
                             President & Treasurer
                              David B. Duchow, CFA
                            Assistant Vice President
                             John C. Thompson, CFA
                            Assistant Vice President
                                        
                               TRANSFER AGENT AND
                           DIVIDEND DISBURSING AGENT
                       Firstar Mutual Fund Services, LLC
                                 P. 0. Box 701
                           Milwaukee, Wisconsin 53201
                                        
                            INDEPENDENT ACCOUNTANTS
                           PricewaterhouseCoopers LLP
                       650 Third Avenue South, Suite 1300
                          Minneapolis, Minnesota 55402
                                        
                                 LEGAL COUNSEL
                              Quarles & Brady LLP
                           411 East Wisconsin Avenue
                           Milwaukee, Wisconsin 53202
                                        
                               INVESTMENT ADVISOR
                       Thompson, Plumb & Associates, Inc.
                           1200 John Q. Hammons Drive
                            Madison, Wisconsin 53717
                           Telephone:  (608) 831-1300



                                 THOMPSON PLUMB
                                  FUNDS, INC.
                          ---------------------------



                                 ANNUAL REPORT
                               November 30, 1998





                          THOMPSON PLUMB BALANCED FUND
                                        
                            THOMPSON PLUMB BOND FUND
                                        
                           THOMPSON PLUMB GROWTH FUND





                           1200 John Q. Hammons Drive
                           Madison, Wisconsin  53717
                           Telephone: (608) 831-1300
                                      (800) 999-0887
                             www.thompsonplumb.com
                                        


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