STRONG OPPORTUNITY FUND INC
N-30D, 1999-09-07
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                                                       [STRONG LOGO]

     THE STRONG
     GROWTH FUNDS
- --------------------------------------------------------------
     SEMI-ANNUAL REPORT o JUNE 30, 1999

                       [PICTURE OF STRONG FUNDS BUILDING]


The Strong Common Stock Fund

The Strong Discovery Fund

The Strong Growth Fund

The Strong Mid Cap Disciplined Fund

The Strong Mid Cap Growth Fund

The Strong Opportunity Fund

The Strong Strategic Growth Fund


<PAGE>

                            LETTER FROM THE CHAIRMAN

Dear Strong Investor,

Having  just  returned  from a business  trip to  Indianapolis,  I was telling a
friend that almost everywhere I went--every freeway traveled,  every side street
ventured down--bulldozers, cranes and backhoes were hard at work.

Indianapolis,  like most American cities we visit these days, is in the midst of
a spectacular  building boom. A sea of yellow construction  equipment is washing
over the  nation's  landscape.

It is the latest chapter in the unbelievable economic expansion that has blessed
this  country--almost  without  pause--since  1982.  The signs of prosperity are
everywhere:

     o    Highways jammed with people on their way to do business.

     o    "Help  Wanted"  signs in more store  windows than most of us have ever
          seen at one time.

     o    Consumer confidence is at an all-time high. Shopping carts are stuffed
          with personal computers,  printers,  software and all sorts of related
          high-tech equipment transforming the lives of Americans.

     o    Restaurants  are packed almost every night of the week with people who
          have money to spend.

We are fortunate to be living in one of the greatest  economic booms in recorded
history.  Likewise,  we should be grateful for the  opportunity  to live in this
incredibly prosperous time. We should also remember that nothing lasts forever.

The nation's economic engine is running near full capacity. After eight years of
continuous  growth,  the American  economy is  beginning to overheat.  It's that
strain  on the  system  that  has Mr.  Greenspan's  Federal  Reserve,  which  is
responsible for managing the economy and keeping inflation at reasonable levels,
obviously concerned.

The  Fed's  most  powerful  inflation-fighting  tool is its  ability  to  manage
interest rates.  Although it is a blunt  instrument,  raising  interest rates is
very  effective  in  rapidly  slowing  the rate of  growth in the  economy.  For
example,  when  rates  go up,  it  doesn't  take  long to see a drop in both the
construction of new homes and the refinancing of mortgage  loans.  Likewise,  it
wouldn't be long before some of those  bulldozers  and backhoes in  Indianapolis
were sidelined.

The Federal Reserve has an awesome  responsibility.  While they want the economy
to move ahead,  they can't let their hopes  override  common sense.  The Fed has
become increasingly  worried about excessive  valuations in the stock market and
the possibility that, left unchecked, a financial bubble could occur.

Make no mistake  about it:  Here at  Strong,  we are  bullish  on the  long-term
prospects for America.  But, in the short term,  expectations  of what the stock
market and the U.S.  economy can  continue to deliver  seem  inflated.  For that
reason,  this could be a good time to complement your portfolio's stock holdings
with more conservative money market and short-term bond funds.

                                                  /s/ Dick
<PAGE>

                                   THE STRONG
                                     GROWTH
                                     FUNDS
                          ----------------------------
                       SEMI-ANNUAL REPORT o JUNE 30, 1999

                               TABLE OF CONTENTS

INVESTMENT REVIEW
     The Strong Common Stock Fund ....................................2
     The Strong Discovery Fund .......................................4
     The Strong Growth Fund ..........................................6
     The Strong Mid Cap Disciplined Fund .............................8
     The Strong Mid Cap Growth Fund .................................10
     The Strong Opportunity Fund ....................................12
     The Strong Strategic Growth Fund ...............................14

FINANCIAL INFORMATION
     Schedules of Investments in Securities .........................16
     Statements of Assets and Liabilities ...........................27
     Statements of Operations .......................................28
     Statements of Changes in Net Assets ............................29
     Notes to Financial Statements ..................................33

FINANCIAL HIGHLIGHTS ................................................37

<PAGE>
                                    ==============
                          THE STRONG COMMON STOCK FUND
- ------------------------------------==============------------------------------

FUND
 HIGHLIGHTS

o    For the six-month period ending June 30, 1999, the Strong Common Stock Fund
     returned 19.73%.(1)

o    Media/cable  stocks  continued  to be strong  performers  as  consolidation
     highlighted the demand for the services of the cable industry.

o    Energy stocks  rebounded nicely as world economies began to bounce back and
     more  stringent  OPEC  monitoring  of oil sales  allowed  for strong  stock
     performance.  Other stocks that benefit from increased oil prices  followed
     suit.

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

              AVERAGE ANNUAL
             TOTAL RETURNS(1)

              As of 6-30-99

          1-year          17.89%

          3-year          20.86%

          5-year          20.99%

 Since Inception          20.81%
   (on 12-29-89)

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

            FIVE LARGEST
           STOCK HOLDINGS

           As of 6-30-99

SECURITY                % OF NET ASSETS

Nabors Industries, Inc.            2.0%

MediaOne Group, Inc.               1.9%

Unifi, Inc.                        1.9%

AT&T Corporation--
Liberty Media Group Class A        1.8%

Apache Corporation                 1.8%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGER

/s/ Richard Trent Weiss
Richard Trent Weiss
Portfolio Manager

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

During  the  first  half  of  1999,  the  Fund  benefited  from  an  up-tick  in
international  economies.  A rebound  in the price of crude oil from $11  to $19
ignited a rally in stocks  that  either  directly  or  indirectly  earn  greater
profits as crude  prices rise.  The increase in oil prices  related to a general
pickup in Southeast Asian and Latin American  economies,  and to greater efforts
by OPEC to monitor oil sales. We remain  optimistic that oil prices will hold in
the  second  half of 1999  and  are  maintaining  our  positions  in this  area.
Cable/media stocks also continued their solid run as consolidation further drove
gains in this group, although we reduced overweighted positions in this group as
valuations  approached  private value levels.  Individual  stocks that performed
best   were   DoubleClick,    MediaOne,    Morton   International,    Intermedia
Communications, and Smith International.

Two sectors that lagged somewhat in the first half were healthcare  services and
financials.  Healthcare  stocks were  severely  impacted by  reimbursement  cuts
initiated by the Balanced  Budget  Amendment of 1997.  Although  returns in this
sector have come more slowly than we would like,  we are  optimistic  that these
stocks  represent  good value as companies can now grow off a new earnings base.
Financial stocks also lagged as investors  anticipated an increase in short-term
interest rates and priced in an expected slowdown in earnings and

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

                                                     IT ALSO APPEARS

                                                     THAT SMALLER-CAP

                                                    STOCKS HAVE REACHED

                                                       A POINT WHERE

                                                     THEY WILL PERFORM

                                                      BETTER RELATIVE

                                                      TO LARGER STOCKS

                                                       GOING FORWARD.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

2
<PAGE>

growth. We increased our  underweighted  position in financial stocks toward the
end of the second quarter when valuations  adequately reflected lowered earnings
expectations.

Looking  ahead,  we also believe that select  technology  stocks  represent good
value. Some technology companies are starting to suffer from fears that business
will dramatically  decline as corporations  reduce technology budgets until next
year due to Year 2000 concerns. Consequently, we are adding software stocks when
we identify  attractively valued companies with long-term  competitive advantage
in the space they play.

For the second half of 1999, we believe that the world  economic  situation will
continue to improve,  although at a slow rate. Given this scenario,  we continue
to like the energy  sector and select  cyclicals.  We believe  that  smaller-cap
stocks have  reached a point where they will perform  better  relative to larger
stocks going  forward.  Smaller stocks are now selling at a 6-point P/E discount
to the largest 50 stocks in the S&P 500, while the  historical  average over the
last 23 years is a 1-point discount.

We thank you for investing in the Strong Common Stock Fund,  and look forward to
continuing to help you achieve your financial goals.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-29-89 to 6-30-99

[GRAPH]
            THE STRONG COMMON           Russell         Lipper Growth
                STOCK FUND          2000(R) Index*       Funds Index*
12-89             10,000                10,000              10,000
12-91             15,864                11,756              12,895
12-93             23,988                16,552              15,541
12-95             31,609                20,873              20,292
12-97             47,223                29,753              30,536
6-99              60,272                31,688              42,945


This graph,  provided in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Russell  2000(R)  Index and the Lipper Growth Funds Index.  Results  include the
reinvestment  of all dividends and capital gains  distributions.  Performance is
historical  and  does not  represent  future  results.  Investment  returns  and
principal value will vary, and you may have a gain or loss when you sell shares.

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

*    The Russell 2000(R) Index is an unmanaged index generally representative of
     the U.S. market for small  capitalization  stocks.  The Lipper Growth Funds
     Index is an  equally-weighted  performance index of the largest  qualifying
     funds in this Lipper  category.  The Russell  2500TM  Index is an unmanaged
     index generally representative of the U.S. market for small to medium-small
     capitalization  stocks.  The S&P 500  Stock  Index  is an  unmanaged  index
     generally  representative  of the U.S. stock market.  Source of the Russell
     index data is Standard & Poor's  Micropal.  Source of the Lipper index data
     is Lipper Inc.

YOUR FUND'S
 APPROACH

THE STRONG COMMON STOCK FUND INVESTS IN SMALL-CAP STOCKS THAT APPEAR UNDERVALUED
OR NEGLECTED BY WALL STREET  ANALYSTS,  BUT POSSESS  SUPERIOR  LONG-TERM  GROWTH
POTENTIAL.  AT THE CORE OF OUR  INVESTMENT  PHILOSOPHY  IS THE  "PRIVATE  MARKET
METHODOLOGY."  THIS  APPROACH  ALLOWS US TO DETERMINE  WHAT WE BELIEVE TO BE THE
TRUE ECONOMIC VALUE OF A COMPANY--OR  THE PRICE A BUYER WOULD PLACE ON THE WHOLE
COMPANY. BY ANALYZING THE COMPETITIVE ADVANTAGES OF A COMPANY AND BY JUDGING THE
ABILITY OF MANAGEMENT TO EFFECTIVELY CARRY OUT ITS CORPORATE VISION, WE ARE ABLE
TO DETERMINE  THE TRUE ECONOMIC  VALUE OF THE FIRM AND QUANTIFY THE  RISK/REWARD
CHARACTERISTICS OF INDIVIDUAL STOCKS.

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

MARKET
 HIGHLIGHTS

o    The Russell  2500TM  Index  returned  10.88% for the six month period ended
     June 30, 1999.*

o    An acceleration in the world economies allowed  smaller-cap  stocks,  whose
     earnings are more sensitive to cyclical swings,  to perform strongly during
     the first half of the year.

o    The U.S. economy remained strong, although the Federal Reserve Board's move
     to  increase  short-term  interest  rates in June could  signal a generally
     tighter monetary policy which may eventually slow earnings growth.

o    In the second quarter, the Russell 2000(R) Index of small-cap stocks gained
     15.55%  versus  7.05% on the S&P 500 Index.*  The  rebound  followed a long
     period of  under-performance  in small caps from mid-1996  through December
     1998.

                                                                               3
<PAGE>
                                     ===========
                           THE STRONG DISCOVERY FUND
- -------------------------------------===========--------------------------------

FUND
 HIGHLIGHTS

o    The Strong Discovery Fund returned -5.00% for the six months ended June 30,
     1999.(1)

o    As of June 30, 1999,  the Fund was  invested in companies  with an expected
     earnings growth rate of 21%.(2) On-site meetings with management  confirmed
     that the vast majority of the Fund's holdings are on track to achieve their
     profit targets.

o    The Fund emphasized  dependable growth companies as a precautionary measure
     against a potential  slowdown in the U.S. economy,  which could result from
     the recent rise in interest rates.

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

            AVERAGE ANNUAL
           TOTAL RETURNS(1)

            As of 6-30-99

         1-year         -5.63%

         3-year          5.26%

         5-year         10.30%

        10-year         11.15%

Since Inception         14.10%
  (on 12-31-87)

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

            FIVE LARGEST
           STOCK HOLDINGS

            As of 6-30-99

SECURITY                % OF NET ASSETS

AT&T Corporation                   4.4%

Central Garden & Pet Co.           4.1%

Sykes Enterprises, Inc.            3.0%

Chancellor Media Corporation       2.6%

ITT Educational Services, Inc.     2.6%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGERS

/s/Richard S. Strong          /s/Chip Paquelet
Richard S. Strong             Chip Paquelet
Portfolio Co-manager          Portfolio Co-manager

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

This year began with a continuation of the market trends that persisted over the
past few  years.  Large  company  stocks,  and more  recently  Internet  stocks,
performed extraordinarily well while most stocks lost ground. By April, however,
the chronic  underperformance of small- and medium-sized company shares staged a
turnaround.   Investors  are  finally  beginning  to  recognize  the  attractive
valuation and growth opportunities present in the small-cap sector.

The Discovery  Fund's  performance  mirrored this trend--a  rough  January-March
followed by an improvement in the second quarter. Unfortunately, by mid-year our
performance had fallen short of our broad-based  benchmark,  the Russell 2000(R)
Index, and we gave back the outperformance we achieved in 1998.

No single issue explains Discovery's disappointing start in 1999. Rather, it was
the culmination of several factors:

o    Large  declines  in a few  of  our  holdings,  although  the  Fund's  broad
     diversification diluted their impact.

o    Insufficient technology exposure, particularly Internet stocks. At June 30,
     1999, 23.1% of the portfolio was invested in technology.  In addition,  our
     focus on companies with proven  management and records limited our exposure
     to the scores of Internet  start-ups,  recently the strongest sector of the
     market.

o    Lack of big winners.  While you expect some investments to disappoint,  you
     also expect to

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

                                                   WHILE THE PORTFOLIO

                                                     HAD A NUMBER OF

                                                    INDIVIDUAL INVEST-

                                                     MENTS WITH GOOD

                                                   GAINS OVER THE PAST

                                                   TWO QUARTERS, WE DID

                                                     NOT HAVE OUR COM-

                                                  PLEMENT OF STOCKS THAT

                                                    SHOT THE LIGHTS OUT.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

2    Earnings  growth  has been  estimated  on an annual  basis for a  projected
     five-year  period.  The Discovery  Fund's earnings growth estimate has been
     generated from our own analysis of the portfolio's individual securities as
     of June 30, 1999. The earnings  growth  projection for the S&P 500 has been
     based on a consensus of earnings  estimates from six Wall Street investment
     firms as shown by Bloomberg dated June 30, 1999.

4
<PAGE>

more than  offset  them with  stocks  that  surprise  on the  upside.  While the
portfolio had a number of individual  investments  with good gains over the past
two quarters, we did not have our complement of stocks that shot the lights out.

On the  positive  side,  in February and March we  increased  the Fund's  energy
exposure  just  prior  to the  recovery  in oil  prices.  We also  made  several
investments in cable  companies as a way of capturing the growth of the Internet
to the residential market.

Looking  forward,  we plan to  emphasize  those  sectors of the market  with the
greatest growth potential, including technology, consumer products/services, and
healthcare.  We also intend to continue  capitalizing on turning points in other
industries,  such  as  energy.  As in the  past,  individual  company  research,
including  on-site visits with management,  will continue to be an integral part
of our investment process.

Please  understand  that,  above all else, we value and  appreciate the enormous
trust you have invested in us. We absolutely abhor having to report poor results
to you. And, rest assured, we have every intention of improving the job we do on
your behalf. We will keep you posted.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-31-87 to 6-30-99

[GRAPH]
            THE STRONG             Russell              Lipper Capital
          DISCOVERY FUND        2000(R) Index*     Appreciation Funds Index*
12-87         10,000                10,000                 10,000
12-89         15,428                14,518                 14,479
12-91         25,151                17,068                 18,366
12-93         31,333                24,031                 22,865
12-95         39,885                30,303                 29,350
12-97         44,825                43,196                 40,477
6-99          45,584                46,005                 55,838


This graph,  prepared in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Russell 2000(R) Index and the Lipper Capital  Appreciation Funds Index.  Results
include the  reinvestment  of all  dividends  and capital  gains  distributions.
Performance  is historical  and does not represent  future  results.  Investment
returns and principal  value will vary, and you may have a gain or loss when you
sell shares.

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

*    The Russell 2000(R) Index is an unmanaged index generally representative of
     the U.S.  market  for  small  capitalization  stocks.  The  Lipper  Capital
     Appreciation  Funds Index is an  equally-weighted  performance index of the
     largest  qualifying  funds in this Lipper  category.  Source of the Russell
     index data is Standard & Poor's  Micropal.  Source of the Lipper index data
     is Lipper Inc.


YOUR FUND'S
 APPROACH

THE STRONG DISCOVERY FUND SEEKS TO PROVIDE INVESTORS WITH CAPITAL GROWTH, A GOAL
WE PURSUE BY  INVESTING  IN A  DIVERSIFIED  PORTFOLIO  OF SMALL-,  MEDIUM-,  AND
LARGER-  SIZE  COMPANIES.  OUR  INVESTMENT  APPROACH  COMBINES  NUMBER-CRUNCHING
ANALYSIS  WITH DIRECT  RESEARCH,  INCLUDING  ON-SITE  VISITS.  THROUGH  FREQUENT
DISCUSSIONS WITH MANAGEMENT, SUPPLIERS, CUSTOMERS AND COMPETITORS, WE BELIEVE WE
CAN  IDENTIFY  VITAL  ASPECTS  OF  COMPANIES  THAT  ARE NOT  REFLECTED  IN THEIR
HISTORICAL FINANCIAL STATEMENTS OR THEIR STOCK PRICES.

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

MARKET
 HIGHLIGHTS

o    In the second quarter of 1999, small-cap stocks staged a comeback following
     three years of significant underperformance.

o    Large-cap  valuations  are at  historically  high  levels  while  small-cap
     valuations remain reasonable.

o    Corporate  profitability  is picking up following  several  years of anemic
     growth.  Earnings  for the  companies  in the S&P 500 Index are expected to
     advance 15% in 1999,  compared to just a 4.5% average  annual gain over the
     past three years.(2)

o    The U.S.  economy  remains  remarkably  healthy in spite of global economic
     challenges and, recently, higher interest rates.

                                                                               5
<PAGE>
                                       ========
                             THE STRONG GROWTH FUND
- ---------------------------------------========---------------------------------

FUND
 HIGHLIGHTS

o    The Strong Growth Fund returned 15.88% for the six-month  period ended June
     30, 1999.(1) In response to the excessive  valuations of large-cap  stocks,
     the Fund moved more aggressively into medium-cap companies.

o    The Fund  continued  to hold core  holdings  that have  demonstrated  solid
     performance and reduced holdings in drug companies.

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

             AVERAGE ANNUAL
            TOTAL RETURNS(1)

             As of 6-30-99

         1-year            26.49%

         3-year            21.23%

         5-year            26.62%

Since Inception            25.33%
  (on 12-31-93)

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

             FIVE LARGEST
            STOCK HOLDINGS

             As of 6-30-99

SECURITY                % OF NET ASSETS

Cisco Systems, Inc.                4.3%

Kohl's Corporation                 3.2%

MCI WorldCom, Inc.                 2.7%

Uniphase Corporation               2.6%

Tyco International, Ltd.           2.2%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGER

/s/ Ronald C. Ognar
Ronald C. Ognar
Portfolio Manager

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

I often answer  shareholder  questions  about the Strong  Growth  Fund,  so I've
decided  to  report  to you  from  the  perspective  of an  investor.  As I am a
shareholder myself, it isn't too hard.

Yes,  Harriet,  the Strong Growth Fund is an all-cap growth fund, and I see that
the managers at Strong did move more aggressively  into medium-cap  companies as
the valuations in the larger companies became too expensive. And I'm glad to see
they kept  cashing in their  chips on more of those  Internet  stocks  that kept
running up. I knew those stocks were getting ahead of the fundamentals. I'm glad
to see that someone pays  attention to valuation  along with trying to invest in
companies with the strongest earnings and revenue growth.

Let's  see--they took the weighted  median market cap down to $8.43 billion from
$9.7 billion  while still  keeping the best of their core large  companies  like
Cisco Systems,  Tyco  International,  Lucent,  Home Depot,  and Microsoft.  They
lowered  their drug  company  holdings  but still  avoided big  consumer  staple
companies  because of weaker  earnings and  prospects.  And  good--they are very
light in financial stocks with the upturn in interest rates.

Gee Harriet, I'm going to read further and see where Ron and his team made their
new  investments  and see what other  themes are working this year.  Okay,  they
added to biotech stocks and stayed with their strong U.S.

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

                                                   ...THE MANAGERS AT

                                                     STRONG DID MOVE

                                                    MORE AGGRESSIVELY

                                                     INTO MEDIUM-CAP

                                                     COMPANIES AS THE

                                                    VALUATIONS IN THE

                                                    LARGER COMPANIES

                                                  BECAME TOO EXPENSIVE.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

6
<PAGE>

consumer-spending  theme,  but switched  from drug stores (high  valuation)  and
supermarkets to more consumer electronics like Best Buy, Circuit City and Tandy.
They thought the economy was gaining  strength and consumers  were getting early
tax refunds that were 14% higher than last year and  teenagers  were  becoming a
bigger factor in retail sales,  with everyone working and the stock market still
adding  wealth.  U.S.  consumers  spend  when  they  feel safe and they get more
dollars  in their  pockets.  They said it was time to get more  growth  cyclical
exposure in the portfolio.

The Strong Growth Fund is 5 1/2 years old now and performance since inception is
compounding at 25.33%,  just like the earnings growth rate for the average stock
they  own  (and  they  mean  forward  looking  earnings).   And  still  no  down
years--that's  the consistency  that they keep striving for. They still like the
telecom  equipment  theme and they are using the same rationale for the Internet
sector.  The suppliers and builders of the  infrastructures  are the place to be
over the long term.

Ron thanks  everyone for  believing in his team and investing in the Growth Fund
as part of their financial  plans.  They remain committed to doing their best to
helping us attain our long-term financial goals.

I'll look forward to speaking with you again in six months.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-31-93 to 6-30-99

[GRAPH]
               THE STRONG           S&P 500          Lipper Growth
               GROWTH FUND        Stock Index*        Funds Index*
12-93             10,000            10,000              10,000
12-94             11,727            10,132               9,843
12-95             16,535            13,940              13,057
12-96             19,763            17,140              15,346
12-97             23,528            22,859              19,648
12-98             29,877            29,391              24,696
6-99              34,622            33,030              27,632


This graph,  prepared in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Standard & Poor's 500 Stock Index ("S&P 500") and the Lipper Growth Funds Index.
Results   include  the   reinvestment   of  all   dividends  and  capital  gains
distributions.  Performance is historical and does not represent future results.
Investment  returns and  principal  value vary,  and you may have a gain or loss
when you sell shares.

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

*    The S&P 500 is an  unmanaged  index  generally  representative  of the U.S.
     stock  market.  The  Lipper  Growth  Funds  Index  is  an  equally-weighted
     performance index of the largest  qualifying funds in this Lipper category.
     The Growth  Index is comprised  of 50%  S&P/Barra  500 Growth Index and 50%
     S&P/Barra  MidCap 400 Growth  Index.  The  S&P/Barra 500 Growth Index is an
     unmanaged  index  generally  representative  of the U.S.  market for growth
     stocks.  The  S&P/Barra  MidCap  400  Growth  Index is an  unmanaged  index
     generally  representative  of the U.S.  market  for  medium  capitalization
     growth stocks.  Source of the S&P index data is Standard & Poor's Micropal.
     Source of the Lipper index data is Lipper Inc.


YOUR FUND'S
 APPROACH

THE  STRONG  GROWTH  FUND IS  DESIGNED  TO SERVE  AS A CORE  EQUITY  HOLDING  IN
INVESTORS'  PORTFOLIOS BY INVESTING IN GROWTH  STOCKS OF ALL SIZES.  THE MANAGER
CHOOSES INVESTMENTS BY CAREFULLY  RESEARCHING  COMPANIES,  ONE AT A TIME, PAYING
CLOSE  ATTENTION  TO  THEIR   VALUATIONS  AND  THE  LONG-TERM  THEMES  OF  THEIR
BUSINESSES. THE FUND IS FLEXIBLE ENOUGH TO MOVE OUT OF WHAT THE MANAGER BELIEVES
ARE  DANGEROUS  SECTORS  AND  CAPITALIZATION  AREAS  IN  AN  EFFORT  TO  PROTECT
SHAREHOLDERS'  INVESTMENTS.  ONCE THESE STOCKS ARE SOLD,  THE MANAGER  MOVES THE
FUND TO POTENTIALLY MORE PROMISING INVESTMENT TERRITORY.

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

MARKET
 HIGHLIGHTS

o    The Fund's  benchmark,  the Growth Index,  returned 9.50%,  and the S&P 500
     Stock Index returned 12.38% during the period.*

o    The  strong  consumer,  driven  by  confidence  in the  U.S.  economy,  low
     unemployment,  higher tax refunds,  and the influence of teenage  spending,
     continued to be an important player in the markets.

o    The U.S. economy  continued to show  considerable  strength,  prompting the
     Federal Reserve to address inflationary  concerns by raising interest rates
     by one quarter of a point at the end of the reporting period.

o    The U.S. market broadened to include more cyclical and smaller companies.

                                                                               7
<PAGE>
                                 =====================
                       THE STRONG MID CAP DISCIPLINED FUND
- ---------------------------------=====================--------------------------

FUND
 HIGHLIGHTS

o    The  Strong Mid Cap  Disciplined  Fund  returned  28.80% for the six months
     ended June 30, 1999.(1) The Fund benefited from some takeovers of stocks in
     the portfolio. These takeovers valued the companies at substantial premiums
     to their public share prices.

o    The fund also  benefited  from a  relatively  large  exposure to energy and
     consumer  stocks.  As energy prices have  rebounded,  they have brought the
     prices of most energy  stocks along with them.  Consumer  prosperity in the
     strong economic environment has boosted retail issues.

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

            TOTAL RETURN(1)

             As of 6-30-99

Since Inception          28.80%
  (on 12-31-98)

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

          TOP FIVE SECTORS

            As of 6-30-99

SECTOR                  % OF NET ASSETS

Retail                            14.7%

Financial                         13.5%

Consumer Cyclical                 13.3%

Technology                        13.0%

Energy                             9.5%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGER

/s/Dean DuMontier
Dean DuMonthier
Portfolio Manager

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

Greetings  shareholders!  It is a  pleasure  to write  the  first  of what  will
hopefully  be  many  semi-annual  communications  between  us.  In  addition  to
providing  an  update  on the Fund and its  positioning,  in the  limited  space
available  I will  attempt  to add  some  interesting  thoughts/topics  from  my
experiences  in  the  period.  Hopefully  you  will  find  these  communications
interesting and educational as well as informative.

A combination of good stock selection and some good luck produced solid returns.
Four companies in the portfolio  were acquired by other  companies over the past
six months; in each case, the acquiring  company offered a substantial  premium.
Although we don't buy stocks with a takeout in mind, it's always a nice surprise
to realize a gain so quickly.  The prices paid  indicate  that we purchased  the
stocks well below their intrinsic values.

The Fund also benefited from its position in energy stocks. Oil prices began the
year at around $12 and finished the period closer to $20. OPEC, the Organization
of Petroleum Exporting  Countries,  decided to limit the supply of oil by simply
not  producing  as much so that the price of oil would  rebound.  OPEC is like a
union  of oil  producers  that  go "on  strike"  when  prices  get too  low.  We
anticipated OPEC's production cuts, and purchased a few oil producers as well as
a few oil-service providers.

In addition to our winners, we've had some challenging holdings.  Our healthcare
services  stocks have been bogged down by the regulation and increased  scrutiny
of the Federal Government. Despite lower share prices we still like these

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

                                                     A COMBINATION OF

                                                    GOOD STOCK SELECTION

                                                       AND SOME GOOD

                                                       LUCK PRODUCED

                                                       SOLID RETURNS.

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

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

1    Total Return is not annualized and measures  aggregate  change in the value
     of an  investment  in the Fund,  assuming  reinvestment  of  dividends  and
     capital gains.
8
<PAGE>

companies:  we all need  the  products  they  produce,  and  with the  America's
population aging, demand should only go up from here.

One topic  seemingly on everyone's mind is Internet  stocks.  As value- oriented
investors,  we do not own pure  Internet  stocks.  We believe it's  difficult to
gauge and manage downside risk with companies that don't make money,  and aren't
expected to anytime soon. However, the Internet is transforming many businesses,
so there are numerous indirect ways to benefit from its impact on the "physical"
world. When railroads transformed the transportation system decades ago, most of
the economic  wealth  created by the more efficient  transcontinental  transport
went to the  businesses  that  utilized  the system as  opposed to the  railroad
companies themselves.  Many more non-Internet  businesses are able to access new
markets and operate  more  efficiently  as a result of the  Internet.  We are on
constant watch for these companies as investments.

For example,  the Fund has a position in CNF Transportation,  a trucking company
that delivers Priority Mail for the U.S. Postal Service. Much of the merchandise
purchased on the  Internet is sent by Priority  Mail,  sparking  demand for this
delivery  service.  Without  paying  Internet  valuations,  the  Fund  can  thus
participate in  Internet-driven  upside earnings  potential.

Thank you for your interest and support.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-31-98 to 6-30-99

[GRAPH]
             THE STRONG MID        S&P MidCap 400     Lipper Mid Cap
          CAP DISCIPLINED FUND      Stock Index*       Funds Index*
12-98             10,000              10,000              10,000
1-99              10,470               9,611              10,269
2-99              10,140               9,107               9,630
3-99              11,740               9,362              10,078
4-99              12,640              10,100              10,512
5-99              12,640              10,144              10,529
6-99              12,880              10,687              11,190


This graph,  prepared in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Standard & Poor's  MidCap 400 Stock Index ("S&P  MidCap 400") and the Lipper Mid
Cap Funds Index.  Results include the  reinvestment of all dividends and capital
gains  distributions.  Performance is historical  and does not represent  future
results. Investment returns and principal value vary, and you may have a gain or
loss when you sell shares.

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

*    The S&P MidCap 400 is an unmanaged  index generally  representative  of the
     U.S.  market for  medium  capitalization  stocks.  The Lipper Mid Cap Funds
     Index is an  equally-weighted  performance index of the largest  qualifying
     funds in this Lipper  category.  Source of the S&P index data is Standard &
     Poor's Micropal. Source of the Lipper index data is Lipper Inc.

YOUR FUND'S
 APPROACH

THE STRONG MID CAP DISCIPLINED FUND INVESTS  PRIMARILY FOR CAPITAL  APPRECIATION
USING A BOTTOM-UP APPROACH TO SELECTING  MID-SIZE STOCKS.  MEDIUM-SIZE FIRMS ARE
GENERALLY ABLE TO GROW FASTER THAN LARGE  COMPANIES,  BUT THEIR STOCK PRICES ARE
LESS VOLATILE THAN THOSE OF MANY SMALLER  COMPANIES.  WE LOOK FOR STOCKS TRADING
BELOW THEIR INTRINSIC VALUE,  BASED ON AN ANALYSIS OF THE COMPANY'S  COMPETITIVE
ADVANTAGES.  WE USE CASH FLOW AS THE PRIMARY  VALUATION  TOOL,  AS IT PROVIDES A
MORE STABLE MEASURE OF COMPANY  PERFORMANCE  THAN EARNINGS.  WE STRIVE TO INVEST
WITH GOOD UPSIDE  POTENTIAL  WHILE  MANAGING THE DOWNSIDE  RISK INHERENT IN EACH
INVESTMENT.

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

MARKET
 HIGHLIGHTS

o    The S&P MidCap 400 Stock Index returned 6.87% for the six months ended June
     30, 1999.*

o    Small- and mid-size  stocks lagged large stocks  dramatically  in the first
     quarter,  then rebounded  strongly in the second quarter.  Many key foreign
     economies  recovered,  lending  credibility  to  projections  of  prolonged
     cyclical strength.

o    The Federal  Reserve  Board  raised  interest  rates,  addressing  concerns
     regarding  possible  inflationary  pressures from continued  rapid economic
     growth.  This hike slowed the relative  outperformance of mid-cap stocks at
     the very end of the six-month period.

o    Mid-cap stocks with a value orientation have not performed as well as those
     with  more  of  a  growth  orientation.   Specifically,  technology  issues
     performed very well in the period.


                                                                               9
<PAGE>
                                   ================
                         THE STRONG MID CAP GROWTH FUND
- -----------------------------------================-----------------------------

FUND
 HIGHLIGHTS

o    Ronald Ognar and Derek Felske assumed portfolio  management  responsibility
     of the Fund on January 31, 1999.  Reflecting their  investment  philosophy,
     the Fund's technology exposure was increased.

o    The Fund returned 27.17% for the six months ended June 30, 1999.(1)

o    Technology,  energy service and consumer cyclical  (principally  retailers)
     holdings   provided  strong  relative   performance  for  the  Fund,  while
     interest-sensitive and healthcare holdings hurt performance.

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

             AVERAGE ANNUAL
            TOTAL RETURNS(1)

             As of 6-30-99

         1-year           25.63%

Since Inception           22.41%
  (on 12-31-96)

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

          TOP FIVE SECTORS

           As of 6-30-99

SECTOR                  % OF NET ASSETS

Technology                        55.9%

Retail                            11.8%

Financial                         11.7%

Energy                             9.2%

Healthcare                         4.0%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGERS

/s/Ronald C. Ognar            /s/ Derek Felske
Ronald C. Ognar               Derek Felske
Portfolio Co-Manager          Portfolio Co-Manager

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

In January 1999, upon assuming  management of the Strong Mid Cap Growth Fund, we
modified the  investment  philosophy by increasing  the Fund's focus on dominant
companies led by high-quality management teams in industries with dynamic growth
potential.

The Fund's renewed  emphasis on  high-quality  growth  companies has resulted in
significant  increases in our technology and consumer cyclical  weightings.  The
growth of the Internet and the use of  technology  investment  as a  competitive
weapon has  resulted  in a boom,  with  leading  venture  capitalists,  Internet
entrepreneurs, and CEOs on the covers of general interest publications. Although
levels of high  enthusiasm are often  symptomatic of a market top, it is hard to
quarrel with the underlying  fundamentals.  Our investments are  concentrated in
companies  who will  benefit  from the  growth  of the  networked  economy,  who
manufacture  connectivity  devices and who provide the  building  blocks for the
Internet.  While we continue to believe in the enormous promise of selected pure
Internet plays, we have  substantially  reduced our holdings in the portfolio as
they reached, and in most cases, substantially exceeded our price objectives.

In   consumer   cyclicals,    we   continue   to   overweight    retailers   and
telecommunications  companies.  One  area  where  we are  becoming  increasingly
optimistic  is energy.  In 1998,  the  deflationary  impact of the Asian crises,
coupled with an unusually

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

                                                   THE FUND'S RENEWED

                                                    EMPHASIS ON HIGH-

                                                     QUALITY GROWTH

                                                     COMPANIES HAS

                                                 RESULTED IN SIGNIFICANT

                                                    INCREASES IN OUR

                                                     TECHNOLOGY AND

                                                    CONSUMER CYCLICAL

                                                        WEIGHTINGS.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

10
<PAGE>

mild winter,  led to sharply lower oil prices.  Now,  with  relative  valuations
extremely  attractive  and signs of a rebound in pricing and  drilling  activity
present,  we have made a  substantial  investment  in the sector.  Thus far, the
underlying  fundamentals  appear  to be  improving:  OPEC  members  are over 90%
compliant  with  announced  production  quotas and economic  conditions  in Asia
appear to have stabilized.

We are quite  pleased  with the  performance  of the Fund thus far. In our view,
mid-cap growth stocks offer attractive return potential. Unlike their larger-cap
brethren,  they are often pure  plays on dynamic  niche  markets,  new  products
cycles or innovative new services.  As growth investors,  our investment team is
constantly  on the lookout for  companies  exhibiting  sustainable,  fundamental
improvement.

As we assess the next six  months,  we expect the U.S.  economy to  continue  to
grow,  albeit at a slightly  more  moderate  pace.  Although we believe that Y2K
concerns  are  overstated,   the   possibility  of  very   short-term   economic
dislocations  is  likely,  and we  plan  to  take  advantage  of any  consequent
volatility in an opportunistic manner.

We thank you for your  investment  in the Strong Mid Cap Growth  Fund,  and look
forward to helping you meet your financial goals.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-31-96 to 6-30-99

[GRAPH]
             THE STRONG MID      S&P MidCap 400      Lipper Mid Cap
             CAP GROWTH FUND      Stock Index*        Funds Index*
12-96            10,000              10,000              10,000
6-97             10,104              11,299              10,808
12-97            11,385              13,225              11,746
6-98             13,196              14,367              13,180
12-98            13,035              15,753              13,381
6-99             16,577              16,836              14,974


This graph,  provided in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Standard & Poor's  MidCap 400 Stock Index ("S&P  MidCap 400") and the Lipper Mid
Cap Funds Index.  Results include the  reinvestment of all dividends and capital
gains  distributions.  Performance is historical  and does not represent  future
results. Investment returns and principal value vary, and you may have a gain or
loss when you sell shares.

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

*    The S&P MidCap 400 is an unmanaged  index generally  representative  of the
     U.S.  stock  market for medium  capitalization  stocks.  The Lipper Mid Cap
     Funds  Index  is an  equally-weighted  performance  index  of  the  largest
     qualifying funds in this Lipper  category.  Source of the S&P index data is
     Standard & Poor's Micropal. Source of the Lipper index data is Lipper Inc.


YOUR FUND'S
 APPROACH

THE STRONG MID CAP GROWTH FUND SEEKS  LONG-TERM  CAPITAL  GROWTH BY INVESTING IN
WELL-MANAGED  GROWTH  COMPANIES.  THE MAJORITY OF THE FUND'S HOLDINGS WILL BE IN
COMPANIES HAVING MARKET  CAPITALIZATIONS  BETWEEN $800 MILLION AND $8 BILLION AT
THE TIME OF PURCHASE.

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

MARKET
 HIGHLIGHTS

o    After several years of unusually strong large-cap relative performance, the
     return differential between larger companies and their smaller counterparts
     began to close  during the first half of 1999,  particularly  in the second
     quarter.

o    The Lipper Mid Cap Funds Index  gained  11.90% and the S&P MidCap 400 Stock
     Index returned 6.87% for the six months ended June 30, 1999.*

o    The market's  broader-based advance is a positive  development,  suggesting
     that  solid,  fundamentally-driven  stock  picking--not  indexing--will  be
     rewarded.

o    The Federal Reserve's  decision to hike short-term  interest rates resulted
     in a volatile market in the second quarter.

o    Earnings  growth  has  begun to  re-accelerate  as  fears of a  significant
     slowdown in corporate profits proved unfounded.

                                                                              11
<PAGE>
                                     =============
                           THE STRONG OPPORTUNITY FUND
- -------------------------------------=============------------------------------

FUND
 HIGHLIGHTS

o    For the six  months  ended  June 30,  1999,  the  Strong  Opportunity  Fund
     returned 18.90%.(1)

o    The Fund's  outperformance  was driven mostly by positions in  cable/media,
     energy and cyclical stocks.

o    Energy  stocks  experienced  a  dramatic  turnaround  from  their  mediocre
     performance in 1998.

o    The Fund  benefited  from an  underweighted  position in financials vs. the
     benchmark,  as these stocks  performed  poorly given fears that the Federal
     Reserve Board would raise interest rates.

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

            AVERAGE ANNUAL
           TOTAL RETURNS(1)

             As of 6-30-99

         1-year           20.04%

         3-year           23.01%

         5-year           21.27%

        10-year           15.59%

Since Inception           19.26%
  (on 12-31-85)

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

             FIVE LARGEST
            STOCK HOLDINGS

            As of 6-30-99

SECURITY                % OF NET ASSETS

MediaOne Group, Inc.               2.1%

Corning, Inc.                      1.8%

Enron Corporation                  1.8%

Weatherford International, Inc.    1.7%

Apache Corporation                 1.7%

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGER

/s/Richard Trent Weiss
Richard Trent Weiss
Portfolio Manager

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

The Fund's  performance was most influenced  during this period by our positions
in cable/media, energy, and increased exposure to cyclical stocks. Specifically,
the Fund's strongest  performers included Omnipoint,  Weatherford  International
and MediaOne.  Cable/media stocks continued to be solid performers,  although we
reduced our overweighted exposure to the sector, as valuations reflected some of
the good news.  Energy stocks and cyclicals  also  benefited from the recovering
world  economic  picture.  We remain bullish on both groups and have added names
where opportunities have presented themselves.

Two areas in which  returns were positive but not as strong as other groups were
financial stocks and healthcare.  Investors  appeared skeptical that earnings on
financial  stocks  could  continue  to get  stronger  as  interest  rates  rose.
Healthcare  stocks  remained  under  a  cloud,  due to  reimbursement  cuts  for
hospitals  and  long-term  care  companies  initiated  by  the  Balanced  Budget
Amendment of 1997.  However,  we added select healthcare services stocks as they
now represent good value going forward.

Looking out over the next six months,  we are optimistic  that we have reached a
turning  point where  smaller-cap  stocks will  perform  well versus  larger-cap
stocks. In the second quarter,

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

                                                     WE BELIEVE THE

                                                     IMPROVING WORLD

                                                    ECONOMIC PICTURE

                                                      WILL HELP THE

                                                     CONTINUED STRONG

                                                      PERFORMANCE OF

                                                    SMALL- AND MID-CAP

                                                   STOCKS GOING FORWARD.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

12
<PAGE>

the Russell 2000(R) Index of small-cap  stocks gained 15.55% versus 7.05% on the
S&P 500 Index.  This  outperformance  came as welcome  relief  after an extended
period during which larger-cap  stocks had  outperformed  small and mid caps. We
believe  the  improving   world  economic   picture  will  help  sustain  strong
performance of small- and mid-cap stocks going forward.

We believe that energy and cyclical  stocks  should  remain  strong as the world
economies  strengthen,  resulting  in  improved  profitability  due to  stronger
demand.  Two  areas we are  warming  up to are  financials  and  technology.  We
underweighted  financials  over the past 18  months--as  valuations  reflected a
negative  interest-rate  backdrop--but  believe that valuations are beginning to
reflect the concerns over interest rates,  enabling us to add names selectively.
In the technology area, we are somewhat cautious overall but have added software
and service stocks as Year 2000 fears peak and opportunities present themselves.

We thank you for  investing in the Strong  Opportunity  Fund and look forward to
continuing to help you achieve your financial goals.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                            From 12-31-85 to 6-30-99

[GRAPH]
              THE STRONG        S&P MidCap 400       Lipper Growth
           OPPORTUNITY FUND      Stock Index*         Funds Index*
12-85           10,000              10,000              10,000
12-87           17,894              11,383              11,935
12-89           24,694              18,649              17,364
12-91           28,845              26,556              22,391
12-93           41,022              33,866              26,986
12-95           53,868              42,758              35,236
12-97           78,558              67,407              53,023
6-99           107,873              85,808              74,570


This graph,  provided in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Standard & Poor's MidCap 400 Stock Index ("S&P MidCap400") and the Lipper Growth
Funds Index. Results include the reinvestment of all dividends and capital gains
distributions.  Performance is historical and does not represent future results.
Investment  returns and  principal  value vary,  and you may have a gain or loss
when you sell shares.

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

*    The S&P MidCap 400 is an unmanaged  index generally  representative  of the
     U.S. market for medium capitalization stocks. The Lipper Growth Funds Index
     is an equally-weighted performance index of the largest qualifying funds in
     this  Lipper  category.  Source of the S&P index data is  Standard & Poor's
     Micropal. Source of the Lipper index data is Lipper Inc.


YOUR FUND'S
 APPROACH

THE STRONG  OPPORTUNITY  FUND FOCUSES ON STOCKS OF  MEDIUM-SIZE  COMPANIES  THAT
OFFER  STRONG  GROWTH  POTENTIAL,  BUT  ARE  UNDERPRICED.  RATHER  THAN  RELY ON
TRADITIONAL WALL STREET RESEARCH,  WE APPLY OUR PROPRIETARY PRIVATE MARKET VALUE
APPROACH  TO  FIND  STOCKS  FOR THE  FUND.  WE  FIRST  CONSIDER  COMPANIES  (AND
INDUSTRIES)  THAT ARE OUT OF FAVOR.  THEN WE  DETERMINE  THE PRICE WE BELIEVE AN
INVESTOR  WOULD BE  WILLING  TO PAY FOR AN ENTIRE  COMPANY--ITS  PRIVATE  MARKET
VALUE. A COMPANY WHOSE STOCK PRICE IS LOWER THAN ITS PRIVATE MARKET VALUE MAY BE
ADDED TO THE PORTFOLIO.

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

MARKET
 HIGHLIGHTS

o    The S&P MidCap 400 Stock Index returned 6.87% for the six-months ended June
     30, 1999.*

o    The U.S. economy remained very healthy during the first half of the year as
     inflation remained low and an increase in bond market interest rates failed
     to upset the stock market.

o    Signs of a world economic  recovery  re-accelerated  corporate  profits and
     caused  investors to shift to more cyclical  companies,  a move that favors
     small- and mid-cap stocks.

o    The U.S. Federal Reserve Bank raised short-term interest rates by a quarter
     of one percentage point in June to prevent the economy from overheating and
     inflation from accelerating.

                                                                              13
<PAGE>
                                  ==================
                        THE STRONG STRATEGIC GROWTH FUND
- ----------------------------------==================----------------------------

FUND
 HIGHLIGHTS

o    The Fund returned  13.33% for the six months ended June 30, 1999.  The Fund
     lagged early in the year but finished on a stronger note.(1)

o    Healthcare-related  issues  underperformed during the quarter. We sold some
     of  these  stocks,  as the  companies'  operations  had the  potential  for
     extended downturns.

o    The Fund's  technology  holdings,  which  provided  solid  returns over the
     six-month    period,    were    broadened    to   increase    exposure   to
     telecommunications.

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

            AVERAGE ANNUAL
            TOTAL RETURN(1)

             As of 6-30-99

 Since Inception         27.50%
    (on 6-30-98)

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

             FIVE LARGEST
            STOCK HOLDINGS

             As of 6-30-99

SECURITY                % OF NET ASSETS

Sykes Enterprises, Inc.            4.0%

Jones Medical Industries, Inc.     3.5%

C.H. Robinson Worldwide, Inc.      3.3%

Republic Services, Inc.            3.3%

Lexmark International              3.2%
Group, Inc. Class A

Please see the Schedule of Investments
in Securities for a complete listing of
the Fund's portfolio.


PERSPECTIVES
FROM THE MANAGER

/s/Scott Sindelar
Scott Sindelar
Portfolio Manager

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

For the first six months of the year,  the Fund began  slowly as a result of its
healthcare information systems holdings.  Healthcare organizations reduced their
spending on new systems in order to ensure  readiness of their existing  systems
for any potential  Year 2000 computer  issues.  This  spending  slowdown  caused
healthcare   information  system  stocks  to  decline  significantly  in  value.
Healthcare  providers  indicated  this  slowdown  could last  through  the first
quarter of the year 2000, so these  holdings were sold to reduce their  negative
impact on the  Fund's  return.  The  proceeds  were  invested  in a  variety  of
industries.

The fear of Y2K-related  spending  slowdowns in other  industries also depressed
the  prices  of other  software  companies  in the  portfolio  during  the first
quarter. These fears were lessened as the year progressed and these stocks had a
strong second quarter. The Fund's performance reflected this pattern of weakness
early in the year and strengthening as the year progressed.

The Fund  broadened  technology  holdings  during  the  period to  include  more
telecommunications stocks. Continued capital spending strength, the rapid growth
of  the  Internet,  and  the  development  of  new  technologies  provided  good
opportunities for the Fund. Additional  opportunities in this market segment are
being examined as it continues to offer multi-year growth potential.

Healthcare  stocks face two significant  issues today:  possible new regulations
from Washington and a possible slowdown in

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

                                                   THE FUND BROADENED

                                                       TECHNOLOGY

                                                     HOLDINGS DURING

                                                       THE PERIOD

                                                     TO INCLUDE MORE

                                                    TELECOMMUNICATIONS

                                                          STOCKS.

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

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

1    Average annual total return and total return measure change in the value of
     an  investment  in the Fund,  assuming  reinvestment  of all  dividends and
     capital gains. Average annual total return reflects annualized change while
     total return reflects aggregate change, and is not annualized.

14
<PAGE>

new drug introduction from the larger pharmaceutical  companies.  Fears relating
to the latter issue hurt the performance of the Fund's  healthcare stocks during
the  year and may  continue  to weigh  on  them.  However,  from an  operational
standpoint  we believe  these  holdings  are well  positioned  relative to these
issues. We anticipate that these stocks should contribute good earnings and cash
flows during the remainder of 1999, and in time,  reward  shareholders  well. In
light of this, we plan to maintain the majority of these holdings.

Looking forward,  the markets may remain choppy as the strong economy will be in
a tug-of-war  against the  potential  for higher  interest  rates.  Higher rates
typically put a damper on stock market  returns.  However,  for the  foreseeable
future, we believe corporate earnings should be strong,  unemployment remain low
and inflation moderate. These factors should provide a solid base for equities.

To  dampen  some of the  Fund's  volatility,  the  number  of  holdings  will be
increased.  Total holdings  should  approximate 50 names.  These steps should be
beneficial to shareholders and serve them well over time.

Thank you for your continued confidence in the Strong Strategic Growth Fund.


                     GROWTH OF AN ASSUMED $10,000 INVESTMENT
                             From 6-30-98 to 6-30-99

[GRAPH]
               THE STRONG             S&P 500         Lipper Growth
          STRATEGIC GROWTH FUND     Stock Index*       Funds Index*
6-98              10,000              10,000              10,000
9-98               9,020               9,005               8,859
12-98             11,250              10,923              10,876
3-99              11,100              11,467              11,427
6-99              12,750              12,276              12,169


This graph,  provided in  accordance  with SEC  regulations,  compares a $10,000
investment  in the Fund,  made at its  inception,  with the  performance  of the
Standard & Poor's 500 Stock Index ("S&P 500") and the Lipper Growth Funds Index.
Results   include  the   reinvestment   of  all   dividends  and  capital  gains
distributions.  Performance is historical and does not represent future results.
Investment  returns and  principal  value vary,  and you may have a gain or loss
when you sell shares.

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

*    The S&P 500 is an  unmanaged  index  generally  representative  of the U.S.
     stock  market.  The  Lipper  Growth  Funds  Index  is  an  equally-weighted
     performance index of the largest  qualifying funds in this Lipper category.
     The Russell 2000(R) Index is an unmanaged index generally representative of
     the U.S.  market  for small  capitalization  stocks.  Source of the S&P and
     Russell  index  data is  Standard & Poor's  Micropal.  Source of the Lipper
     index data is Lipper Inc.


YOUR FUND'S
 APPROACH

THE  STRONG  STRATEGIC  GROWTH  FUND'S  GOAL IS TO  PROVIDE  CAPITAL  GROWTH  BY
INVESTING IN A MODEST NUMBER OF COMPANIES WHICH ARE STRATEGICALLY POSITIONED FOR
LONG-TERM  GROWTH.  TWO TYPICAL  CHARACTERISTICS  OF SUCH  COMPANIES ARE SKILLED
MANAGEMENT TEAMS AND SOLID FINANCIAL CHARACTERISTICS.  A FOCUS OF THE INVESTMENT
PROCESS IS AN EFFORT TO BECOME  KNOWLEDGEABLE  ABOUT EACH MANAGEMENT TEAM. THESE
ARE THE PEOPLE WHO WILL ULTIMATELY DETERMINE THE LONG-TERM SUCCESS OF THE STOCK.
THE FUND INVESTS IN A VARIETY OF COMPANIES OF ALL SIZES.

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

MARKET
 HIGHLIGHTS

o    Large-cap stocks as represented by the S&P 500 Stock Index (S&P 500)--which
     returned 12.4% for the period--outperformed the Russell 2000(R) during the
     first  half of  1999.*  The  strength  of the  economy  offset  the rise in
     interest rates, enabling stocks to continue to climb.

o    Uncertainties  relating to the possible Year 2000 computer  spending freeze
     put pressure on software  companies  early in the year.  This  particularly
     impacted healthcare-related software stocks.

o    Other  technology  stocks  performed well as these  companies  expect solid
     sales and earnings gains.

o    Healthcare  stocks also faced issues of potential  regulatory  changes from
     Washington.

                                                                              15
<PAGE>

SCHEDULES OF INVESTMENTS IN SECURITIES                 JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                            STRONG COMMON STOCK FUND
================================================================================
                                                     Shares or
                                                     Principal       Value
                                                       Amount       (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 91.3%
AIRLINE 0.3%
Air New Zealand, Ltd. Class B                        2,138,800    $  4,451,762

BANK - MONEY CENTER 0.2%
Bank of Tokyo - Mitsubishi                             110,000       1,563,779
Standard Chartered PLC                                 116,000       1,894,935
                                                                  ------------
                                                                     3,458,714
BANK - REGIONAL 2.5%
City National Corporation                              460,000      17,221,250
Old Kent Financial Corporation                         472,500      19,785,938
                                                                  ------------
                                                                    37,007,188
BANK - SUPER REGIONAL 2.8%
BankBoston Corporation                                 380,000      19,427,500
Wells Fargo Company                                    535,000      22,871,250
                                                                  ------------
                                                                    42,298,750
BROKERAGE & INVESTMENT MANAGEMENT 0.1%
Morgan Stanley Emerging Markets Fund, Inc.              84,000         987,000

CHEMICAL 0.9%
Rohm and Haas Company                                  295,020      12,648,983

CHEMICAL - SPECIALTY 1.1%
Crompton & Knowles Corporation                         875,000      17,117,187

COMMERCIAL SERVICE 3.0%
Pittston Company Brinks Group                          610,000      16,317,500
Rollins Truck Leasing Corporation                    1,800,000      20,025,000
TMP Worldwide, Inc. (b)                                137,500       8,731,250
                                                                  ------------
                                                                    45,073,750
COMPUTER - MAINFRAME 1.2%
Apple Computer, Inc. (b)                               385,000      17,830,312

COMPUTER - PERIPHERAL EQUIPMENT 1.3%
Microchip Technology, Inc. (b)                         400,000      18,950,000

COMPUTER - PERSONAL & WORKSTATION 2.4%
DoubleClick, Inc. (b)                                  155,000      14,221,250
Sterling Commerce, Inc. (b)                            590,000      21,535,000
                                                                  ------------
                                                                    35,756,250
COMPUTER SERVICE 0.1%
Getronics NV                                            47,000       1,813,407

COMPUTER SOFTWARE 8.0%
Autodesk, Inc.                                         483,900      14,305,294
Informix Corporation (b)                             2,620,000      22,351,875
Rational Software Corporation (b)                      630,000      20,750,625
Sterling Software, Inc. (b)                            950,000      25,353,125
Sybase, Inc. (b)                                     1,500,000      16,500,000
Synopsys, Inc. (b)                                     375,000      20,695,312
                                                                  ------------
                                                                   119,956,231
CONSUMER - MISCELLANEOUS 1.5%
Canon, Inc.                                             71,000       2,038,614
Hillenbrand Industries, Inc.                           475,000      20,543,750
                                                                  ------------
                                                                    22,582,364
DIVERSIFIED OPERATIONS 1.5%
Carlisle Companies, Inc.                               380,000      18,287,500
Invensys PLC                                           797,000       3,773,271
                                                                  ------------
                                                                    22,060,771
ELECTRICAL EQUIPMENT 1.3%
Molex, Inc. Class A                                    625,000      19,687,500

ELECTRONIC PARTS DISTRIBUTION 1.0%
Marshall Industries (b)                                431,100      15,492,656


ELECTRONIC PRODUCTS - MISCELLANEOUS 1.4%
General Motors Corporation Class H (b)                 365,000      20,531,250

ELECTRONICS - SEMICONDUCTOR/COMPONENT 2.6%
Dallas Semiconductor Corporation                       365,000      18,432,500
Xilinx, Inc. (b)                                       350,000      20,037,500
                                                                  ------------
                                                                    38,470,000
ENGINEERING & CONSTRUCTION 1.1%
Jacobs Engineering Group, Inc. (b)                     445,000      16,910,000

FOOD 1.2%
Nabisco Holdings Corporation                           430,000      18,597,500

HEALTHCARE - BIOMEDICAL/GENETIC 1.4%
Centocor, Inc. (b)                                     435,000      20,281,875

HEALTHCARE - INSTRUMENTATION 1.2%
Beckman Coulter, Inc.                                  380,000      18,477,500

HEALTHCARE - PATIENT CARE 2.8%
Omnicare, Inc.                                       1,150,000      14,518,750
PhyCor, Inc. (b)                                     1,200,000       8,887,500
WellPoint Health Networks, Inc. (b)                    209,000      17,738,875
                                                                  ------------
                                                                    41,145,125
INSURANCE - DIVERSIFIED 1.3%
CIGNA Corporation                                      225,000      20,025,000

INSURANCE - PROPERTY & CASUALTY 2.4%
MBIA, Inc.                                             280,000      18,130,000
XL Capital, Ltd. Class A                               300,000      16,950,000
                                                                  ------------
                                                                    35,080,000
MACHINERY - MISCELLANEOUS 1.4%
Hussmann International, Inc.                         1,275,000      21,117,188

MACHINERY - TRANSPORTATION EQUIPMENT & PARTS 1.2%
Trinity Industries, Inc.                               555,000      18,592,500

MEDIA - PUBLISHING 1.7%
Arnoldo Mondadori Editore Spa                          115,000       1,972,053
News Corporation, Ltd. Sponsored ADR                   660,000      23,306,250
                                                                  ------------
                                                                    25,278,303
MEDIA - RADIO/TV 4.0%
AT&T Corporation-Liberty Media Group Class A (b)       730,000      26,827,500
Cox Communications, Inc. Class A (b)                   560,000      20,615,000
Flextech PLC (b)                                       725,000      11,677,584
                                                                  ------------
                                                                    59,120,084
OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 6.1%
Anadarko Petroleum Corporation                         560,000      20,615,000
Apache Corporation                                     680,000      26,520,000
Devon Energy Corporation                               613,500      21,932,625
EEX Corporation (b)                                    665,000       4,613,437
Enron Oil & Gas Company                                640,000      12,960,000
Harken Energy Corporation (b)                        2,700,000       4,387,500
                                                                  ------------
                                                                    91,028,562
OIL WELL EQUIPMENT & SERVICE 5.4%
Nabors Industries, Inc. (b)                          1,200,000      29,325,000
Offshore Logistics, Inc. (b)                           995,000      11,069,375
Smith International, Inc. (b)                          555,000      24,107,812
Tidewater, Inc.                                        535,000      16,317,500
                                                                  ------------
                                                                    80,819,687
POLLUTION CONTROL 1.3%
Republic Services, Inc. (b)                            790,000      19,552,500

16
<PAGE>

- --------------------------------------------------------------------------------
================================================================================
                      STRONG COMMON STOCK FUND (CONTINUED)
================================================================================
                                                     Shares or
                                                     Principal      Value
                                                      Amount       (Note 2)
- --------------------------------------------------------------------------------
REAL ESTATE 2.8%
Apartment Investment & Management
  Company Class A                                      480,000  $   20,520,000
Security Capital Group, Inc. Class B (b)             1,130,000      16,455,625
Shortland Properties, Ltd.                             851,000         263,424
Ventas, Inc.                                           896,000       4,816,000
                                                                --------------
                                                                    42,055,049
RETAIL - MAJOR CHAIN 0.1%
Daiei, Inc. (b)                                        579,900       1,980,847

RETAIL - RESTAURANT 2.5%
IHOP Corporation (b) (f)                               750,000      18,046,875
Outback Steakhouse, Inc. (b)                           490,400      19,278,850
                                                                --------------
                                                                    37,325,725
RETAIL - SPECIALTY 4.0%
AutoZone, Inc. (b)                                     550,000      16,568,750
Borders Group, Inc. (b)                              1,145,000      18,105,312
Ross Stores, Inc.                                      255,000      12,845,625
TJX Companies, Inc.                                    370,000      12,325,625
                                                                --------------
                                                                    59,845,312
SHOE & APPAREL MANUFACTURING 3.1%
Liz Claiborne, Inc.                                    510,000      18,615,000
Unifi, Inc. (b)                                      1,305,100      27,733,375
                                                                --------------
                                                                    46,348,375
STEEL 0.7%
USX-US Steel Group                                     410,000      11,070,000

TELECOMMUNICATION EQUIPMENT 1.8%
Belden, Inc.                                           495,000      11,849,062
Newbridge Networks Corporation (b)                     525,000      15,093,750
                                                                --------------
                                                                    26,942,812
TELECOMMUNICATION SERVICE 10.6%
Aerial Communications, Inc. (b)                      1,319,900      17,818,650
Cable & Wireless Communications PLC
  Sponsored ADR (b)                                    120,000       5,820,000
Intermedia Communications, Inc. (b)                    788,700      23,661,000
Libertel NV (Acquired 6/15/99; Cost $876,120) (b) (d)   40,000         786,144
MediaOne Group, Inc. (b)                               375,500      27,927,812
NTL, Inc. (b)                                          248,000      21,374,500
Nippon Telegraph & Telephone Corporation                   340       3,955,446
Paging Network, Inc. (b)                             2,650,000      12,753,125
United States Cellular Corporation (b)                 485,200      25,958,200
Vodafone Group PLC Sponsored ADR                        90,000      17,730,000
                                                                --------------
                                                                   157,784,877
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $1,043,562,367)                        1,365,552,896
- --------------------------------------------------------------------------------

CORPORATE BONDS 0.7%
Omnipoint Corporation Senior Notes, 11.625%,
  Due 8/15/06                                      $ 8,500,000       8,712,500
Omnipoint Corporation Senior Notes, Series A,
  11.625%, Due 8/15/06                               1,500,000       1,537,500
- --------------------------------------------------------------------------------
TOTAL CORPORATE BONDS (COST $6,186,761)                             10,250,000
- --------------------------------------------------------------------------------

CONVERTIBLE BONDS 0.2%
Conxus Communications, Inc. Senior Subordinated
  Notes, 9.00%, Due 5/15/01 (Acquired 5/22/98;
  Cost $13,000,000) (b) (d)                         13,000,000       2,340,000
- --------------------------------------------------------------------------------
TOTAL CONVERTIBLE BONDS (COST $13,000,000)                           2,340,000
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 7.8%
COMMERCIAL PAPER 0.1%
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                                 100             100
Pitney Bowes Credit Corporation, 4.82%                 131,700         131,700
Warner Lambert Company, 4.91%                          327,500         327,500
Wisconsin Electric Power Company, 4.91%              1,478,700       1,478,700
                                                                --------------
                                                                     1,938,000
REPURCHASE AGREEMENTS 7.5%
ABN-AMRO Inc. (Dated 6/30/99), 4.78%, Due 7/01/99
  (Repurchase proceeds $112,414,924); Collateralized
  by: SLMA Notes, FNMA Notes, FHLMC Notes,
  Federal Home Loan Bank Bonds, Federal Farm
  Credit Bank Notes, Tennessee Valley Authority
  Bonds, and Resolution Funding Corporation
  Bonds (e)                                        112,400,000     112,400,000

UNITED STATES GOVERNMENT ISSUES 0.2%
United States Treasury Bills:
  Due 7/01/99  (c)                                      60,000          60,000
  Due 8/05/99  (c)                                   1,991,328       1,991,502
  Due 8/12/99  (c)                                   1,293,243       1,293,403
                                                                --------------
                                                                     3,344,905
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $117,682,571)                   117,682,905
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $1,180,431,699) 100.0%     1,495,825,801
Other Assets and Liabilities, Net (0.0%)                               (76,583)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                               $1,495,749,218
================================================================================


FUTURES
- --------------------------------------------------------------------------------
                                             Underlying          Unrealized
                             Expiration      Face Amount        Appreciation
                                Date          at Value         (Depreciation)
- --------------------------------------------------------------------------------
Purchased:
73 Nikkei Index                 9/99         $6,480,575           $517,388

Sold:
25 NASDAQ 100 Index             9/99          5,817,750           (489,938)
15 S&P 500 Index                9/99          5,181,375           (223,875)


WRITTEN OPTIONS ACTIVITY
- --------------------------------------------------------------------------------
                                                 Contracts         Premiums
- --------------------------------------------------------------------------------
Options outstanding at beginning of period           --            $    --
Options written during the period                    80             17,759
Options closed                                       --                 --
Options expired                                      --                 --
Options exercised                                   (80)           (17,759)
                                                     --            -------
Options outstanding at end of period                 --            $    --
                                                     ==            =======

                                                                              17
<PAGE>

SCHEDULES OF INVESTMENTS IN SECURITIES (CONTINUED)     JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                              STRONG DISCOVERY FUND
================================================================================
                                                      Shares or
                                                      Principal       Value
                                                        Amount       (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 97.8%
AEROSPACE & DEFENSE 0.2%
AVTEAM, Inc. Class A (b)                                74,025     $   541,308

BANK - MONEY CENTER 1.4%
Citigroup, Inc.                                         70,000       3,325,000

BANK - SUPER REGIONAL 0.6%
Bank One Corporation                                    23,900       1,423,544

BROKERAGE & INVESTMENT MANAGEMENT 1.3%
Waddell & Reed Financial, Inc. Class A                 117,100       3,212,931

COMMERCIAL SERVICE 16.2%
Coinmach Laundry Corporation (b)                       492,200       6,244,787
Consolidated Graphics, Inc. (b)                         70,100       3,505,000
The Hertz Corporation                                   80,000       4,960,000
ITT Educational Services, Inc. (b)                     240,900       6,278,456
Lamar Advertising Company (b)                           18,800         769,625
Lason Holdings, Inc. (b)                                32,900       1,632,663
Merkert American Corporation (b)                       255,000       2,422,500
Outdoor Systems, Inc. (b)                              111,200       4,058,800
The ServiceMaster Company                               73,500       1,378,125
Sykes Enterprises, Inc. (b)                            216,000       7,209,000
Valassis Communications, Inc. (b)                       27,900       1,021,838
                                                                   -----------
                                                                    39,480,794
COMPUTER - MAINFRAME 2.8%
Hewlett-Packard Company                                 26,000       2,613,000
International Business Machines Corporation             33,500       4,329,875
                                                                   -----------
                                                                     6,942,875
COMPUTER - PERIPHERAL EQUIPMENT 2.2%
Lexmark International Group, Inc. Class A (b)           70,000       4,624,375
Microchip Technology, Inc. (b)                          14,500         686,938
                                                                   -----------
                                                                     5,311,313
COMPUTER - PERSONAL & WORKSTATION 0.4%
Security Dynamics Technologies, Inc. (b)                43,200         918,000

COMPUTER SERVICE 2.8%
Acxiom Corporation (b)                                   9,900         246,881
CSG Systems International, Inc. (b)                     20,600         539,463
Fiserv, Inc. (b)                                        35,100       1,099,069
Pierce Leahy Corporation (b)                           150,000       3,703,125
Sungard Data Systems, Inc. (b)                          35,000       1,207,500
                                                                   -----------
                                                                     6,796,038
COMPUTER SOFTWARE 2.8%
Cisco Systems, Inc. (b)                                 26,000       1,677,000
Electronics for Imaging, Inc. (b)                       54,100       2,779,387
Microsoft Corporation (b)                               14,600       1,316,738
Oracle Systems Corporation (b)                          26,100         968,963
                                                                   -----------
                                                                     6,742,088
CONSUMER - MISCELLANEOUS 1.2%
Carriage Services, Inc. Class A (b)                    162,100       3,039,375

DIVERSIFIED OPERATIONS 0.7%
Tyco International, Ltd.                                17,400       1,648,650

ELECTRICAL EQUIPMENT 0.8%
Methode Electronics, Inc. Class A                       46,300       1,059,113
PRI Automation, Inc. (b)                                22,400         812,000
                                                                   -----------
                                                                     1,871,113
ELECTRONIC PARTS DISTRIBUTION 0.5%
Kent Electronics Corporation (b)                        62,500       1,238,280

ELECTRONIC PRODUCTS - MISCELLANEOUS 1.8%
Rayovac Corporation (b)                                196,700       4,462,630

ELECTRONICS - SEMICONDUCTOR/COMPONENT 0.3%
Applied Materials, Inc. (b)                             10,000         738,750

ENERGY - ALTERNATE SOURCE 0.1%
KTI, Inc. (b)                                           14,600         208,050

FINANCE - MISCELLANEOUS 0.5%
NOVA Corporation (b)                                    50,000       1,250,000

HEALTHCARE - DRUG/DIVERSIFIED 0.4%
Halsey Drug Company, Inc. (Acquired 5/20/98 - 4/01/99;
  Cost $65,445) (b) (d) (f)                             23,075          50,627
Jones Medical Industries, Inc.                          26,300       1,035,562
                                                                   -----------
                                                                     1,086,189
HEALTHCARE - INSTRUMENTATION 0.3%
Medtronic, Inc.                                          8,800         685,300

HEALTHCARE - MEDICAL SUPPLY 5.2%
Henry Schein, Inc. (b)                                 105,300       3,336,694
Ocular Sciences, Inc. (b)                              110,100       1,912,988
PSS World Medical, Inc. (b)                            150,000       1,678,125
Sybron International Corporation (b)                   210,000       5,788,124
                                                                   -----------
                                                                    12,715,931
HEALTHCARE - PATIENT CARE 1.1%
Covance, Inc. (b)                                       56,950       1,363,240
Lincare Holdings, Inc. (b)                              28,100         702,500
Renal Care Group, Inc. (b)                              19,500         504,563
                                                                   -----------
                                                                     2,570,303
HEALTHCARE - PRODUCT 0.5%
Cytyc Corporation (b)                                   13,500         263,250
Hanger Orthopedic Group, Inc. (b)                       70,000         993,125
                                                                   -----------
                                                                     1,256,375
INSURANCE - LIFE 0.5%
Protective Life Corporation                             34,700       1,145,100

LEISURE PRODUCT 2.1%
Action Performance Companies, Inc. (b)                  35,000       1,155,000
Harley-Davidson, Inc.                                   18,000         978,750
SCP Pool Corporation (b)                               111,600       2,887,650
                                                                   -----------
                                                                     5,021,400
LEISURE SERVICE 3.7%
Bally Total Fitness Holding Corporation (b)            135,000       3,830,625
Mandalay Resort Group (b)                               51,000       1,077,375
Park Place Entertainment Corporation (b)               415,900       4,029,031
                                                                   -----------
                                                                     8,937,031
MACHINE TOOL 0.3%
Applied Power, Inc.                                     27,300         745,631

MEDIA - PUBLISHING 1.1%
School Specialty, Inc. (b)                             163,200       2,621,400

MEDIA - RADIO/TV 7.9%
Adelphia Communications Corporation Class A (b)         46,600       2,964,925
Chancellor Media Corporation (b)                       114,150       6,292,519
Clear Channel Communications, Inc. (b)                  60,000       4,136,250
Infinity Broadcasting Corporation Class A (b)           35,000       1,041,250
Viacom International, Inc. (b)                         109,000       4,796,000
                                                                   -----------
                                                                    19,230,944
OFFICE AUTOMATION 0.7%
Xerox Corporation                                       30,000       1,771,875

OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 1.4%
Ocean Energy, Inc. (b)                                 348,950       3,358,644

OIL WELL EQUIPMENT & SERVICE 3.6%
BJ Services Company (b)                                 75,000       2,207,813
Cooper Cameron Corporation (b)                          38,000       1,408,375

18
<PAGE>

- --------------------------------------------------------------------------------
================================================================================
                       STRONG DISCOVERY FUND (CONTINUED)
================================================================================
                                                      Shares or
                                                      Principal      Value
                                                        Amount      (Note 2)
- --------------------------------------------------------------------------------
Marine Drilling Companies, Inc. (b)                     35,000    $    479,063
Nabors Industries, Inc. (b)                            138,100       3,374,818
Noble Drilling Corporation (b)                          70,000       1,378,125
                                                                  ------------
                                                                     8,848,194
PERSONAL & COMMERCIAL LENDING 1.5%
Associates First Capital Corporation                    38,500       1,706,031
Household International, Inc.                           40,000       1,895,000
                                                                  ------------
                                                                     3,601,031
POLLUTION CONTROL 3.8%
Allied Waste Industries, Inc. (b)                      175,000       3,456,250
Casella Waste Systems, Inc. (b)                         44,800       1,164,800
Republic Services, Inc. (b)                            125,225       3,099,319
Superior Services, Inc. (b)                             30,000         800,625
Waste Management, Inc.                                  15,000         806,250
                                                                  ------------
                                                                     9,327,244
RAILROAD 0.5%
Burlington Northern Santa Fe Corporation                40,000       1,240,000

REAL ESTATE 0.8%
Sunstone Hotel Investors, Inc.                         230,850       1,962,225

RETAIL - DEPARTMENT STORE 0.3%
Federated Department Stores, Inc. (b)                   13,500         714,656

RETAIL - FOOD CHAIN 0.3%
US Foodservice (b)                                      15,000         639,375

RETAIL - RESTAURANT 0.8%
Papa John's International, Inc. (b)                     11,300         504,969
Rainforest Cafe, Inc. (b)                              280,000       1,417,500
                                                                  ------------
                                                                     1,922,469
RETAIL - SPECIALTY 14.1%
Best Buy Company, Inc. (b)                              17,900       1,208,250
Central Garden & Pet Company (b)                       981,200      10,057,300
Global Imaging Systems, Inc. (b)                       105,000       1,916,250
Insight Enterprises, Inc. (b)                           89,700       2,220,075
Movie Gallery, Inc. (b)                                402,725       2,164,647
Office Depot, Inc. (b)                                 105,000       2,316,563
Pier 1 Imports, Inc.                                   110,000       1,237,500
Regis Corporation                                      188,125       3,609,648
Rent-A-Center, Inc. (b)                                155,700       3,736,800
Sunglass Hut International, Inc. (b)                   304,500       5,233,594
United Stationers, Inc. (b)                             30,000         660,000
                                                                  ------------
                                                                    34,360,627
SAVINGS & LOAN 1.5%
Dime Bancorp, Inc.                                      20,000         402,500
TCF Financial Corporation                              115,000       3,205,625
                                                                  ------------
                                                                     3,608,125
TELECOMMUNICATION EQUIPMENT 1.7%
American Tower Corporation Class A (b)                  22,000         528,000
Pinnacle Holdings, Inc. (b)                            144,300       3,535,350
                                                                  ------------
                                                                     4,063,350
TELECOMMUNICATION SERVICE 7.1%
AT&T Corporation                                       189,700      10,587,630
Davel Communications, Inc. (b)                         226,300       1,216,363
MCI WorldCom, Inc. (b)                                  10,200         879,750
MediaOne Group, Inc. (b)                                54,100       4,023,688
Teleglobe, Inc.                                         19,500         580,125
                                                                  ------------
                                                                    17,287,556
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $212,544,478)                            237,871,714
- --------------------------------------------------------------------------------

WARRANTS 0.0%
Halsey Drug Company, Inc. Warrants,
  Expire 12/26/01 (Acquired 7/21/97;
  Cost $0) (b) (d) (f)                                  21,429          12,536
- --------------------------------------------------------------------------------
TOTAL WARRANTS (COST $0)                                                12,536
- --------------------------------------------------------------------------------

CONVERTIBLE BONDS 0.2%
Halsey Drug Company, Inc. Subordinated
  Debentures, 10.00%, Due 8/06/01
  (Acquired 8/05/96; Cost $587,550) (b) (d) (f)     $  600,000    $    404,994
- --------------------------------------------------------------------------------
TOTAL CONVERTIBLE BONDS (AMORTIZED COST $593,982)                      404,994
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 2.6%
COMMERCIAL PAPER 0.4%
INTEREST BEARING, DUE UPON DEMAND
Warner Lambert Company, 4.91%                              100             100
Wisconsin Electric Power Company, 4.91%                994,000         994,000
                                                                  ------------
                                                                       994,100
REPURCHASE AGREEMENTS 1.4%
ABN-AMRO Inc. (Dated 6/30/99), 4.78%, Due 7/01/99
  (Repurchase proceeds $3,400,451); Collateralized
  by: SLMA Notes, FNMA Notes, FHLMC Notes,
  Federal Home Loan Bank Bonds, Federal Farm
  Credit Bank Notes, Tennessee Valley Authority
  Bonds, and Resolution Funding
  Corporation Bonds (e)                              3,400,000       3,400,000

UNITED STATES GOVERNMENT ISSUES 0.8%
United States Treasury Bills, Due 8/26/99
  thru 9/09/99 (c)                                   1,905,772       1,906,328
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $6,299,872)                       6,300,428
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $219,438,332) 100.6%         244,589,672
Other Assets and Liabilities, Net (0.6%)                            (1,402,823)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                                 $243,186,849
================================================================================


FUTURES
- --------------------------------------------------------------------------------
                                           Underlying
                           Expiration      Face Amount        Unrealized
                              Date          at Value         Depreciation
- --------------------------------------------------------------------------------
Sold:
4 S&P 500                     9/99         $1,381,700          ($54,457)


WRITTEN OPTIONS ACTIVITY
- --------------------------------------------------------------------------------
                                                 Contracts         Premiums
- --------------------------------------------------------------------------------
Options outstanding at beginning of period            --           $     --
Options written during the period                  2,221            762,686
Options closed                                    (2,221)          (762,686)
Options expired                                       --                 --
Options exercised                                     --                 --
                                                   -----           --------
Options outstanding at end of period                  --           $     --
                                                   =====           ========

Closed options resulted in a capital loss of $878,180.

                                                                              19
<PAGE>

SCHEDULES OF INVESTMENTS IN SECURITIES (CONTINUED)     JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                               STRONG GROWTH FUND
================================================================================
                                                     Shares or
                                                     Principal       Value
                                                       Amount       (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS  93.3%
AIRLINE 0.5%
Midwest Express Holdings, Inc. (b)                     350,000    $ 11,900,000

BANK - REGIONAL 0.4%
First Tennessee National Corporation                   200,000       7,662,500

BROKERAGE & INVESTMENT MANAGEMENT 1.0%
The Charles Schwab Corporation                          75,000       8,240,625
The Goldman Sachs Group, Inc. (b)                       90,000       6,502,500
WEBS Index Fund, Inc.                                  500,000       6,250,000
                                                                  ------------
                                                                    20,993,125
CHEMICAL - SPECIALTY 0.8%
Praxair, Inc.                                          375,000      18,351,563

COMMERCIAL SERVICE 2.2%
Cintas Corporation                                     150,000      10,078,125
MedQuist, Inc. (b)                                     140,000       6,125,000
Outdoor Systems, Inc. (b)                              500,000      18,250,000
Sykes Enterprises, Inc. (b)                            425,000      14,184,375
                                                                  ------------
                                                                    48,637,500
COMPUTER - MAINFRAME 0.9%
Apple Computer, Inc. (b)                               400,000      18,525,000

COMPUTER - PERIPHERAL EQUIPMENT 1.2%
Lexmark International Group, Inc. Class A (b)          150,000       9,909,375
Microchip Technology, Inc. (b)                         200,000       9,475,000
Network Appliance, Inc. (b)                            125,000       6,984,375
                                                                  ------------
                                                                    26,368,750
COMPUTER - PERSONAL & WORKSTATION 4.4%
America Online, Inc. (b)                               225,000      24,862,500
E*Trade Group, Inc. (b)                                200,000       7,987,500
Exodus Communications, Inc. (b)                         70,000       8,395,625
Inktomi Corporation (b)                                125,000      16,320,313
Marimba, Inc. (b)                                      140,000       7,376,250
RealNetworks, Inc.(b)                                   75,000       5,165,625
VeriSign, Inc. (b)                                     200,000      17,250,000
Yahoo! Inc. (b)                                         45,000       7,751,250
                                                                  ------------
                                                                    95,109,063
COMPUTER SERVICE 0.3%
Fiserv, Inc. (b)                                       200,000       6,262,500

COMPUTER SOFTWARE 9.9%
BroadVision, Inc. (b)                                  120,000       8,850,000
Business Objects SA Sponsored ADR (b)                  300,000      10,950,000
Cisco Systems, Inc. (b)                              1,450,000      93,525,000
Citrix Systems, Inc. (b)                               525,000      29,662,500
Computer Network Technology Corporation (b)            160,000       3,460,000
Compuware Corporation (b)                              395,500      12,581,844
Intuit, Inc. (b)                                       100,000       9,012,500
Microsoft Corporation (b)                              250,000      22,546,875
New Era of Networks, Inc. (b)                          200,000       8,787,500
Rational Software Corporation (b)                      200,000       6,587,500
Veritas Software Corporation (b)                       100,000       9,493,750
                                                                  ------------
                                                                   215,457,469
CONTAINER 0.5%
Sealed Air Corporation (b)                             175,000      11,353,125

DIVERSIFIED OPERATIONS 2.2%
Tyco International, Ltd.                               500,000      47,375,000

ELECTRONIC INSTRUMENTATION 2.7%
PE Corporation-PE Biosystems Group                     175,000      20,081,250
Teradyne, Inc. (b)                                     200,000      14,350,000
Waters Corporation (b)                                 450,000      23,906,250
                                                                  ------------
                                                                    58,337,500

ELECTRONIC PRODUCTS - MISCELLANEOUS 1.1%
Jabil Circuit, Inc. (b)                                225,000      10,153,125
Rockwell International Corporation                     225,000      13,668,750
                                                                  ------------
                                                                    23,821,875
ELECTRONICS - SEMICONDUCTOR/COMPONENT 6.8%
ASM Lithography Holding NV                             200,000      11,875,000
Altera Corporation (b)                                  75,000       2,760,937
Broadcom Corporation (b)                               175,000      25,298,437
LSI Logic Corporation (b)                              300,000      13,837,500
Lam Research Corporation (b)                           100,000       4,668,750
Maxim Integrated Products, Inc. (b)                    150,000       9,975,000
Novellus Systems, Inc. (b)                             150,000      10,237,500
PMC-Sierra, Inc. (b)                                   245,000      14,439,687
Rambus, Inc.                                           105,000       9,679,687
Solectron Corporation (b)                              150,000      10,003,125
Transwitch Corporation (b)                             300,000      14,212,500
Xilinx, Inc. (b)                                       350,000      20,037,500
                                                                  ------------
                                                                   147,025,623
FINANCE - MISCELLANEOUS 2.5%
Concord EFS, Inc. (b)                                  425,000      17,982,812
First Data Corporation                                 725,000      35,479,687
                                                                  ------------
                                                                    53,462,499
HEALTHCARE - BIOMEDICAL/GENETIC 1.7%
Biogen, Inc. (b)                                       450,000      28,940,625
Centocor, Inc. (b)                                     150,000       6,993,750
                                                                  ------------
                                                                    35,934,375
HEALTHCARE - DRUG/DIVERSIFIED 1.0%
Andrx Corporation (b)                                  200,000      15,425,000
Forest Laboratories, Inc. (b)                          150,000       6,937,500
                                                                  ------------
                                                                    22,362,500
HEALTHCARE - INSTRUMENTATION 0.8%
Medtronic, Inc.                                        225,000      17,521,875

HEALTHCARE - MEDICAL SUPPLY 1.5%
Advanced Neuromodulation Systems, Inc. (b)             300,000       2,850,000
Bausch & Lomb, Inc.                                    200,000      15,300,000
Cardinal Health, Inc.                                   90,000       5,771,250
Sybron International Corporation (b)                   300,000       8,268,750
                                                                  ------------
                                                                    32,190,000
HEALTHCARE - PATIENT CARE 0.3%
HEALTHSOUTH Corporation (b)                            500,000       7,468,750

HEALTHCARE - PRODUCT 2.1%
Allergan, Inc.                                         300,000      33,300,000
Boston Scientific Corporation (b)                      150,000       6,590,625
Sepracor, Inc. (b)                                      65,000       5,281,250
                                                                  ------------
                                                                    45,171,875
HOUSEHOLD APPLIANCES & FURNISHINGS 0.4%
Leggett & Platt, Inc.                                  345,600       9,612,000

INSURANCE - DIVERSIFIED 0.3%
Marsh & McLennan Companies, Inc.                       100,000       7,550,000

INSURANCE - PROPERTY & CASUALTY 0.2%
MGIC Investment Corporation                            100,000       4,862,500

LEISURE PRODUCT 0.4%
Harley-Davidson, Inc.                                  150,000       8,156,250

LEISURE SERVICE 0.7%
International Speedway Corporation Class A             100,000       4,750,000
SFX Entertainment, Inc. (b)                            150,000       9,600,000
                                                                  ------------
                                                                    14,350,000
MEDIA - RADIO/TV 2.3%
AT&T Corporation-Liberty Media Group Class A (b)       500,000      18,375,000
Clear Channel Communications, Inc. (b)                 335,000      23,094,063
Time Warner, Inc.                                      125,000       9,187,500
                                                                  ------------
                                                                    50,656,563

20
<PAGE>

- --------------------------------------------------------------------------------
================================================================================
                         STRONG GROWTH FUND (CONTINUED)
================================================================================
                                                      Shares or
                                                      Principal      Value
                                                        Amount      (Note 2)
- --------------------------------------------------------------------------------
METAL PRODUCTS & FABRICATION 0.3%
Kaydon Corporation                                     200,000    $  6,725,000

OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 0.9%
Apache Corporation                                     200,000       7,800,000
Union Pacific Resources Group, Inc.                    750,000      12,234,375
                                                                  ------------
                                                                    20,034,375
OIL WELL EQUIPMENT & SERVICE 3.7%
BJ Services Company (b)                                500,000      14,718,750
Cooper Cameron Corporation (b)                         265,000       9,821,563
ENSCO International, Inc.                              800,000      15,950,000
Rowan Companies, Inc. (b)                            1,500,000      27,656,250
Smith International, Inc. (b)                          275,000      11,945,312
                                                                  ------------
                                                                    80,091,875
RETAIL - DEPARTMENT STORE 3.2%
Kohl's Corporation (b)                                 900,000      69,468,750

RETAIL - DISCOUNT & VARIETY 1.4%
Dollar Tree Stores, Inc. (b)                           450,000      19,800,000
99 Cents Only Stores (b)                               200,000       9,987,500
                                                                  ------------
                                                                    29,787,500
RETAIL - DRUG STORE 0.7%
Walgreen Company                                       500,000      14,687,500

RETAIL - FOOD CHAIN 0.4%
The Kroger Company (b)                                 300,000       8,381,250

RETAIL - MAJOR CHAIN 0.8%
BJ's Wholesale Club, Inc. (b)                          300,000       9,018,750
Wal-Mart Stores, Inc.                                  175,000       8,443,750
                                                                  ------------
                                                                    17,462,500
RETAIL - RESTAURANT 1.6%
Outback Steakhouse, Inc. (b)                           425,000      16,707,813
Starbucks Corporation (b)                              500,000      18,781,250
                                                                  ------------
                                                                    35,489,063
RETAIL - SPECIALTY 12.7%
Abercrombie & Fitch Company Class A (b)                300,000      14,400,000
American Eagle Outfitters, Inc. (b)                    520,000      23,660,000
Bed Bath & Beyond, Inc. (b)                            200,000       7,700,000
Best Buy Company, Inc. (b)                             450,000      30,375,000
Circuit City Stores, Inc.                              320,000      29,760,000
David's Bridal, Inc. (b)                               555,000       8,637,188
Gap, Inc.                                              135,000       6,800,625
The Home Depot, Inc.                                   430,000      27,708,125
The Limited, Inc.                                      250,000      11,343,750
Linens `N Things, Inc. (b)                             350,000      15,312,500
Lowe's Companies, Inc.                                 700,000      39,681,250
Pier 1 Imports, Inc.                                   900,000      10,125,000
Staples, Inc. (b)                                      600,000      18,562,500
Tandy Corporation                                      650,000      31,768,750
                                                                  ------------
                                                                   275,834,688
SHOE & APPAREL MANUFACTURING 1.6%
NIKE, Inc. Class B                                     300,000      18,993,750
Tommy Hilfiger Corporation (b)                         200,000      14,700,000
                                                                  ------------
                                                                    33,693,750
TELECOMMUNICATION EQUIPMENT 8.0%
Comverse Technology, Inc. (b)                          330,000      24,915,000
General Instrument Corporation (b)                     150,000       6,375,000
Lucent Technologies, Inc.                              460,000      31,021,250
Qualcomm, Inc. (b)                                      85,000      12,197,500
Tellabs, Inc. (b)                                      620,000      41,888,750
Uniphase Corporation (b)                               340,000      56,440,000
                                                                  ------------
                                                                   172,837,500
TELECOMMUNICATION SERVICE 8.4%
Covad Communications Group, Inc. (b)                   465,100      24,795,644
Equant NV - New York Registered Shares (b)             150,000      14,118,750
Frontier Corporation                                   425,000      25,075,000
Global Crossing, Ltd. (b)                              163,744       6,979,588
Level 3 Communications, Inc. (b)                       200,000      12,012,500
MCI WorldCom, Inc. (b)                                 675,000      58,218,750
Montana Power Company                                  200,000      14,100,000
Qwest Communications International, Inc. (b)           460,000      15,208,750
Sprint Corporation - PCS Group (b)                     200,000      11,425,000
                                                                  ------------
                                                                   181,933,982
TELEPHONE 0.5%
Telephone & Data Systems, Inc.                         150,000      10,959,375
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $1,373,780,544)                        2,023,866,888
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 7.0%
COMMERCIAL PAPER 0.1%
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                        $  1,450,000       1,450,000
Warner Lambert Company, 4.91%                        1,347,300       1,347,300
Wisconsin Electric Power Company, 4.91%                 92,900          92,900
                                                                  ------------
                                                                     2,890,200
REPURCHASE AGREEMENTS 6.9%
ABN-AMRO Inc. (Dated 6/30/99), 4.78%,
  Due 7/01/99 (Repurchase proceeds $148,719,744);
  Collateralized by: SLMA Notes, FNMA Notes,
  FHLMC Notes, Federal Home Loan Bank Bonds,
  Federal Farm Credit Bank Notes, Tennessee
  Valley Authority Bonds, and Resolution Funding
  Corporation Bonds (e)                            148,700,000     148,700,000
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $151,590,200)                   151,590,200
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $1,525,370,744) 100.3%     2,175,457,088
Other Assets and Liabilities, Net (0.3%)                            (6,472,398)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                               $2,168,984,690
================================================================================


WRITTEN OPTIONS ACTIVITY
- --------------------------------------------------------------------------------
                                                     Contracts     Premiums
- --------------------------------------------------------------------------------
Options outstanding at beginning of period                 --    $        --
Options written during the period                      11,500     14,172,716
Options closed                                        (11,500)   (14,172,716)
Options expired                                            --             --
Options exercised                                          --             --
                                                       ------    -----------
Options outstanding at end of period                       --    $        --
                                                       ======    ===========

Closed options resulted in a capital loss of $2,086,729.

                                                                              21
<PAGE>


SCHEDULES OF INVESTMENTS IN SECURITIES (CONTINUED)     JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                         STRONG MID CAP DISCIPLINED FUND
================================================================================
                                                      Shares or
                                                      Principal        Value
                                                        Amount        (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 91.3%
AGRICULTURAL OPERATIONS 1.3%
Fresh Del Monte Produce, Inc. (b)                        6,325        $ 89,341

AIRLINE 1.3%
Continental Airlines, Inc. Class B (b)                   2,335          87,854

AUTO & TRUCK PARTS 1.6%
Delphi Automotive Systems Corporation                    6,100         113,231

BANK - REGIONAL 1.7%
Community First Bankshares, Inc.                         4,945         118,061

BEVERAGE - SOFT DRINK 3.6%
The Pepsi Bottling Group, Inc.                           5,950         137,222
Whitman Corporation                                      6,250         112,500
                                                                      --------
                                                                       249,722
CHEMICAL - SPECIALTY 2.9%
Air Products & Chemicals, Inc.                           2,850         114,712
Dexter Corporation                                       2,225          90,808
                                                                      --------
                                                                       205,520
COMPUTER SERVICE 3.3%
Bell & Howell Company (b)                                2,400          90,750
Complete Business Solutions, Inc. (b)                    7,900         141,706
                                                                      --------
                                                                       232,456
COMPUTER SOFTWARE 4.4%
Cadence Design Systems, Inc. (b)                         8,000         102,000
Check Point Software Technologies, Ltd. (b)              1,750          93,844
Sterling Software, Inc. (b)                              4,325         115,422
                                                                      --------
                                                                       311,266
CONTAINER 0.8%
Owens Illinois, Inc. (b)                                 1,725          56,386

COSMETIC & PERSONAL CARE 1.7%
Playtex Products, Inc. (b)                               7,790         121,232

ELECTRONICS - SEMICONDUCTOR/COMPONENT 2.8%
Analog Devices, Inc. (b)                                 2,065         103,636
Micron Technology, Inc. (b)                              2,300          92,719
                                                                      --------
                                                                       196,355
FOOD 1.8%
Flowers Industries, Inc.                                 5,885         127,631

HEALTHCARE - DRUG/DIVERSIFIED 1.7%
ICN Pharmaceuticals, Inc.                                3,775         121,508

HEALTHCARE - MEDICAL SUPPLY 2.3%
Amerisource Health Corporation Class A (b)               4,475         114,112
Bergen Brunswig Corporation Class A                      2,675          46,144
                                                                      --------
                                                                       160,256
HEALTHCARE - PATIENT CARE 4.2%
HEALTHSOUTH Corporation (b)                              5,900          88,131
Tenet Healthcare Corporation (b)                         5,350          99,309
Total Renal Care Holdings, Inc. (b)                      6,780         105,514
                                                                      --------
                                                                       292,954
HOUSEHOLD APPLIANCES & FURNISHINGS 2.4%
Herman Miller, Inc.                                      2,890          60,690
Premark International, Inc.                              2,890         108,375
                                                                      --------
                                                                       169,065
INSURANCE - LIFE 3.2%
Nationwide Financial Services, Inc. Class A              2,735         123,759
Protective Life Corporation                              3,025          99,825
                                                                      --------
                                                                       223,584
INSURANCE - PROPERTY & CASUALTY 4.1%
Ace, Ltd.                                                4,150         117,238
Allmerica Financial Corporation                          1,595          96,996
MBIA, Inc.                                               1,165          75,434
                                                                      --------
                                                                       289,668
LEISURE PRODUCT 3.1%
Galileo International, Inc.                              2,700         144,281
Luxottica Group Spa ADR                                  4,800          74,700
                                                                      --------
                                                                       218,981
LEISURE SERVICE 2.9%
Harrahs Entertainment, Inc. (b)                          3,000          66,000
Royal Caribbean Cruises, Ltd.                            3,220         140,875
                                                                      --------
                                                                       206,875
MEDIA - RADIO/TV 1.9%
Chancellor Media Corporation (b)                         1,575          86,822
USA Networks, Inc. (b)                                   1,100          44,138
                                                                      --------
                                                                       130,960
MORTGAGE & RELATED SERVICE 1.7%
Countrywide Credit Industries, Inc.                      2,800         119,700

NATURAL GAS DISTRIBUTION 3.0%
El Paso Energy Corporation                               3,400         119,638
KeySpan Corporation                                      3,400          89,675
                                                                      --------
                                                                       209,313
OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 3.2%
Devon Energy Corporation                                 3,100         110,825
Newfield Exploration Company (b)                         3,950         112,328
                                                                      --------
                                                                       223,153
OIL WELL EQUIPMENT & SERVICE 6.3%
BJ Services Company (b)                                  3,125          91,992
Baker Hughes, Inc.                                       2,000          67,000
ENSCO International, Inc.                                5,200         103,675
Nabors Industries, Inc. (b)                              3,350          81,866
Tuboscope, Inc. (b)                                      7,300          99,919
                                                                      --------
                                                                       444,452
POLLUTION CONTROL 1.6%
Republic Services, Inc. (b)                              4,475         110,756

RETAIL - DEPARTMENT STORE 3.0%
Saks, Inc. (b)                                           3,750         108,281
Shopko Stores, Inc. (b)                                  2,925         106,031
                                                                      --------
                                                                       214,312
RETAIL - FOOD CHAIN 4.8%
Food Lion, Inc.                                         10,275         122,016
Richfood Holdings, Inc.                                  5,325          93,853
SUPERVALU, Inc.                                          4,600         118,163
                                                                      --------
                                                                       334,032
RETAIL - MAJOR CHAIN 1.5%
BJ's Wholesale Club, Inc. (b)                            3,450         103,716

RETAIL - RESTAURANT 2.0%
CBRL Group, Inc.                                         8,125         140,664

RETAIL - SPECIALTY 3.4%
Furniture Brands International, Inc. (b)                 5,130         142,999
Payless ShoeSource, Inc. (b)                             1,840          98,440
                                                                      --------
                                                                       241,439
SAVINGS & LOAN 2.8%
Charter One Financial, Inc.                              3,855         107,217
Dime Bancorp, Inc.                                       4,565          91,871
                                                                      --------
                                                                       199,088
SHOE & APPAREL MANUFACTURING 1.3%
Tommy Hilfiger Corporation (b)                           1,265          92,978

TELECOMMUNICATION EQUIPMENT 1.6%
ECI Telecom, Ltd.                                        3,300         109,519

TELECOMMUNICATION SERVICE 0.9%
MediaOne Group, Inc. (b)                                   890          66,194

TRUCKING 1.2%
CNF Transportation, Inc.                                 2,215          85,001
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $6,064,260)                                6,417,223
- --------------------------------------------------------------------------------

22
<PAGE>

- --------------------------------------------------------------------------------
================================================================================
                   STRONG MID CAP DISCIPLINED FUND (CONTINUED)
================================================================================
                                                     Shares or
                                                     Principal       Value
                                                       Amount      (Note 2)
- --------------------------------------------------------------------------------
SHORT-TERM INVESTMENTS (a) 10.2%
COMMERCIAL PAPER
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                            $258,200      $  258,200
Pitney Bowes Credit Corporation, 4.82%                 217,700         217,700
Warner Lambert Company, 4.91%                          132,100         132,100
Wisconsin Electric Power Company, 4.91%                112,700         112,700
                                                                    ----------
                                                                       720,700
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $720,700)                           720,700
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $6,784,960) 101.5%             7,137,923
Other Assets and Liabilities, Net (1.5%)                              (107,947)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                                   $7,029,976
================================================================================


================================================================================
                           STRONG MID CAP GROWTH FUND
================================================================================
                                                      Shares or
                                                      Principal       Value
                                                        Amount       (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 100.0%
BANK - REGIONAL 2.2%
First Tennessee National Corporation                     6,000      $  229,875
Zions Bancorporation                                     6,500         412,750
                                                                    ----------
                                                                       642,625
BANK - SUPER REGIONAL 2.8%
BankBoston Corporation                                   7,000         357,875
State Street Corporation                                 5,500         469,562
                                                                    ----------
                                                                       827,437
BROKERAGE & INVESTMENT MANAGEMENT 4.2%
The Bear Stearns Companies, Inc.                         3,000         140,250
Donaldson, Lufkin & Jenrette, Inc.                       5,800         349,450
Franklin Resources, Inc.                                10,500         426,562
Knight/Trimark Group, Inc. Class A (b)                   2,500         150,781
WEBS Index Fund, Inc.                                   14,500         181,250
                                                                    ----------
                                                                     1,248,293
COMMERCIAL SERVICE 1.5%
MedQuist, Inc. (b)                                       6,200         271,250
TMP Worldwide, Inc. (b)                                  2,500         158,750
                                                                    ----------
                                                                       430,000
COMPUTER - MAINFRAME 1.0%
Apple Computer, Inc. (b)                                 6,500         301,031

COMPUTER - PERIPHERAL EQUIPMENT 3.0%
American Power Conversion Corporation (b)               14,000         281,750
Lexmark International Group, Inc. Class A (b)            9,000         594,563
                                                                    ----------
                                                                       876,313
COMPUTER - PERSONAL & WORKSTATION 11.4%
At Home Corporation Series A (b)                         9,500         512,406
CNET, Inc. (b)                                           6,000         345,750
DoubleClick, Inc. (b)                                    3,000         275,250
E*Trade Group, Inc. (b)                                 14,500         579,094
Exodus Communications, Inc. (b)                          2,400         287,850
Inktomi Corporation (b)                                  2,500         326,406
Net.bank, Inc. (b)                                      17,000         646,000
USinternetworking, Inc. (b)                              5,600         235,200
VeriSign, Inc. (b)                                       1,500         129,375
                                                                    ----------
                                                                     3,337,331
COMPUTER SERVICE 2.5%
International Network Services (b)                      12,000         484,500
Shared Medical Systems Corporation                       3,700         241,425
                                                                    ----------
                                                                       725,925
COMPUTER SOFTWARE 17.3%
BroadVision, Inc. (b)                                   11,500         848,125
Check Point Software Technologies, Ltd. (b)              4,600         246,675
Compuware Corporation (b)                               16,000         509,000
Electronic Arts, Inc. (b)                                5,000         271,250
Extreme Networks, Inc. (b)                               5,300         307,731
Gemstar International Group, Ltd. (b)                    9,500         619,875
ISS Group, Inc. (b)                                     11,900         449,225
Intuit, Inc. (b)                                         4,200         378,525
Juniper Networks, Inc. (b)                                 500          74,500
Mercury Interactive Corporation (b)                      4,000         141,500
New Era of Networks, Inc. (b)                           10,000         439,375
Novell, Inc. (b)                                        11,500         304,750
Rational Software Corporation (b)                        8,000         263,500
Veritas Software Corporation (b)                         2,500         237,344
                                                                    ----------
                                                                     5,091,375
COSMETIC & PERSONAL CARE 0.6%
General Nutrition Companies, Inc. (b)                    7,500         174,844

ELECTRICAL EQUIPMENT 1.5%
PRI Automation, Inc. (b)                                11,800         427,750

ELECTRONIC INSTRUMENTATION 0.7%
Teradyne, Inc. (b)                                       2,700         193,725

ELECTRONIC PRODUCTS - MISCELLANEOUS 2.1%
Jabil Circuit, Inc. (b)                                 13,500         609,188

ELECTRONICS - SEMICONDUCTOR/COMPONENT 9.1%
ASM Lithography Holding NV (b)                           4,200         249,375
Applied Micro Circuits Corporation (b)                   2,500         205,625
Broadcom Corporation (b)                                 1,100         159,019
LSI Logic Corporation (b)                               12,000         553,500
MEMC Electronic Materials, Inc. (b)                     21,000         255,938
Micron Technology, Inc. (b)                              7,500         302,344
Novellus Systems, Inc. (b)                               6,500         443,625
PMC-Sierra, Inc. (b)                                     4,300         253,431
Vitesse Semiconductor Corporation (b)                    1,400          94,412
Xilinx, Inc. (b)                                         2,500         143,125
                                                                    ----------
                                                                     2,660,394
FINANCE - MISCELLANEOUS 1.3%
Providian Financial Corporation                          4,000         374,000

HEALTHCARE - BIOMEDICAL/GENETIC 1.7%
Biogen, Inc. (b)                                         4,000         257,250
Millennium Pharmaceuticals, Inc. (b)                     6,400         230,400
                                                                    ----------
                                                                       487,650
HEALTHCARE - PRODUCT 2.3%
Allergan, Inc.                                           1,000         111,000
Sepracor, Inc. (b)                                       7,000         568,750
                                                                    ----------
                                                                       679,750
HOUSEHOLD APPLIANCES & FURNISHINGS 0.4%
Herman Miller, Inc.                                      6,000         126,000

INSURANCE - ACCIDENT & HEALTH 0.6%
AFLAC, Inc.                                              3,700         177,138

LEISURE SERVICE 1.0%
SFX Entertainment, Inc. (b)                              4,500         288,000

MEDIA - RADIO/TV 1.0%
Clear Channel Communications, Inc. (b)                   4,500         310,219

OIL WELL EQUIPMENT & SERVICE 9.1%
Cooper Cameron Corporation (b)                          16,000         593,000
ENSCO International, Inc.                               24,000         478,500
Global Marine, Inc. (b)                                 32,200         497,087
Rowan Companies, Inc. (b)                               29,000         534,688
Smith International, Inc. (b)                           10,000         434,375
Tidewater, Inc.                                          5,000         152,500
                                                                    ----------
                                                                     2,690,150

                                                                              23
<PAGE>

SCHEDULES OF INVESTMENTS IN SECURITIES (CONTINUED)     JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                     STRONG MID CAP GROWTH FUND (CONTINUED)
================================================================================
                                                      Shares or
                                                      Principal       Value
                                                        Amount       (Note 2)
- --------------------------------------------------------------------------------
PAPER & FOREST PRODUCTS 0.9%
Georgia-Pacific Corporation                              6,000     $   284,250

RETAIL - DEPARTMENT STORE 2.1%
Kohl's Corporation (b)                                   8,000         617,500

RETAIL - FOOD CHAIN 0.5%
Whole Foods Marketing, Inc. (b)                          3,000         144,188

RETAIL - RESTAURANT 1.9%
Outback Steakhouse, Inc. (b)                             5,000         196,562
Starbucks Corporation (b)                               10,000         375,625
                                                                   -----------
                                                                       572,187
RETAIL - SPECIALTY 7.3%
Abercrombie & Fitch Company Class A (b)                  6,000         288,000
American Eagle Outfitters, Inc. (b)                      3,000         136,500
Circuit City Stores, Inc.                                6,500         604,500
Intimate Brands, Inc.                                    6,300         298,462
Linens `N Things, Inc. (b)                               3,200         140,000
PETsMART, Inc. (b)                                      27,500         281,875
Tandy Corporation                                        8,000         391,000
                                                                   -----------
                                                                     2,140,337
SAVINGS & LOAN 0.6%
TCF Financial Corporation                                6,000         167,250

SHOE & APPAREL MANUFACTURING 0.5%
Tommy Hilfiger Corporation (b)                           2,000         147,000

TELECOMMUNICATION EQUIPMENT 4.1%
Aware, Inc. (b)                                          3,300         152,213
CIENA Corporation (b)                                    9,500         286,781
General Instrument Corporation (b)                      11,000         467,500
Uniphase Corporation (b)                                 1,800         298,800
                                                                   -----------
                                                                     1,205,294
TELECOMMUNICATION SERVICE 4.8%
Cablevision Systems Corporation (b)                      4,000         280,000
Covad Communications Group, Inc. (b)                     8,000         426,500
Global TeleSystems Group, Inc. (b)                       3,700         299,700
WinStar Communications, Inc. (b)                         8,500         414,375
                                                                   -----------
                                                                     1,420,575
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $25,618,984)                              29,377,719
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 5.1%
COMMERCIAL PAPER
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                          $1,512,400       1,512,400
Warner Lambert Company, 4.91%                              100             100
                                                                   -----------
                                                                     1,512,500
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $1,512,500)                       1,512,500
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $27,131,484) 105.1%           30,890,219
Other Assets and Liabilities, Net (5.1%)                            (1,512,304)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                                  $29,377,915
================================================================================


================================================================================
                             STRONG OPPORTUNITY FUND
================================================================================
                                                     Shares or
                                                     Principal       Value
                                                       Amount       (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 87.7%
AEROSPACE & DEFENSE 1.1%
Northrop Grumman Corporation                           403,500     $26,757,094

AIRLINE 0.6%
AMR Corporation (b)                                    108,100       7,377,825
Air New Zealand, Ltd. Class B                        2,892,000       6,019,495
                                                                   -----------
                                                                    13,397,320
AUTO & TRUCK PARTS 1.1%
Magna International, Inc. Class A                      460,500      26,133,375

BANK - MONEY CENTER 1.7%
Bank of America Corporation                            415,000      30,424,687
The Bank of Tokyo - Mitsubishi                         165,000       2,345,668
ING Groep NV                                            52,000       2,823,912
Standard Chartered PLC                                 174,000       2,842,403
                                                                   -----------
                                                                    38,436,670
BANK - SUPER REGIONAL 3.8%
Bank One Corporation                                   484,000      28,828,250
Mellon Bank Corporation                                659,600      23,992,950
Wells Fargo Company                                    790,000      33,772,500
                                                                   -----------
                                                                    86,593,700
BEVERAGE - SOFT DRINK 2.8%
The Pepsi Bottling Group, Inc.                       1,339,000      30,880,688
Whitman Corporation                                  1,845,700      33,222,600
                                                                   -----------
                                                                    64,103,288
CHEMICAL 0.7%
Rohm and Haas Company                                  377,294      16,176,480

CHEMICAL - SPECIALTY 2.3%
Praxair, Inc.                                          535,000      26,181,563
Solutia, Inc.                                        1,260,000      26,853,750
                                                                   -----------
                                                                    53,035,313
COMPUTER - MAINFRAME 1.3%
Sun Microsystems, Inc. (b)                             425,000      29,271,875

COMPUTER - PERIPHERAL EQUIPMENT 2.6%
American Power Conversion Corporation (b)            1,700,000      34,212,500
Quantum Corporation (b)                                567,100      13,681,288
Seagate Technology, Inc. (b)                           456,600      11,700,375
                                                                   -----------
                                                                    59,594,163
COMPUTER SERVICE 0.1%
Getronics NV                                            72,000       2,777,985

COMPUTER SOFTWARE 3.0%
Cadence Design Systems, Inc. (b)                     1,859,000      23,702,250
Keane, Inc. (b)                                      1,106,500      25,034,563
Oracle Systems Corporation (b)                         522,800      19,408,950
                                                                   -----------
                                                                    68,145,763
CONSUMER - MISCELLANEOUS 0.1%
Canon, Inc.                                            106,000       3,043,564

CONTAINER 0.0%
Sonoco Products Company                                 39,200         666,400

DIVERSIFIED OPERATIONS 0.2%
Invensys PLC                                         1,239,000       5,865,850

ELECTRIC POWER 1.1%
NiSource, Inc.                                         993,300      25,639,556

ELECTRICAL EQUIPMENT 2.3%
Emerson Electric Company                               390,300      24,540,112
W. W. Grainger, Inc.                                   545,000      29,327,813
                                                                   -----------
                                                                    53,867,925

24
<PAGE>

- --------------------------------------------------------------------------------
================================================================================
                       STRONG OPPORTUNITY FUND (CONTINUED)
================================================================================
                                                     Shares or
                                                     Principal       Value
                                                       Amount       (Note 2)
- --------------------------------------------------------------------------------
ELECTRONIC PARTS DISTRIBUTION 1.6%
Avnet, Inc.                                            671,500    $ 31,224,750
Marshall Industries (b)                                150,000       5,390,625
                                                                  ------------
                                                                    36,615,375
ELECTRONIC PRODUCTS - MISCELLANEOUS 2.9%
AVX Corporation                                      1,500,000      36,562,500
General Motors Corporation Class H (b)                 554,000      31,162,500
                                                                  ------------
                                                                    67,725,000
ELECTRONICS - SEMICONDUCTOR/COMPONENT 2.8%
Micron Technology, Inc. (b)                            768,100      30,964,030
Texas Instruments, Inc.                                230,000      33,350,000
                                                                  ------------
                                                                    64,314,030
FOOD 2.2%
ConAgra, Inc.                                          845,000      22,498,125
H.J. Heinz Company                                     545,000      27,318,125
                                                                  ------------
                                                                    49,816,250
HEALTHCARE - MEDICAL SUPPLY 1.3%
Sybron International Corporation (b)                 1,082,600      29,839,163

HEALTHCARE - PATIENT CARE 3.6%
Columbia/HCA Healthcare Corporation                  1,060,000      24,181,250
HEALTHSOUTH Corporation (b)                          2,250,000      33,609,375
United Healthcare Corporation                          410,000      25,676,250
                                                                  ------------
                                                                    83,466,875
HOUSEHOLD APPLIANCES & FURNISHINGS 2.7%
Leggett & Platt, Inc.                                1,050,000      29,203,125
Premark International, Inc.                            886,000      33,225,000
                                                                  ------------
                                                                    62,428,125
INSURANCE - DIVERSIFIED 1.5%
CIGNA Corporation                                      385,000      34,265,000

INSURANCE - PROPERTY & CASUALTY 3.9%
ACE, Ltd.                                            1,014,500      28,659,625
American International Group, Inc.                     305,000      35,704,062
Hartford Financial Services Group, Inc.                451,000      26,298,938
                                                                  ------------
                                                                    90,662,625
LEISURE PRODUCT 1.1%
The Seagram Company, Ltd.                              517,600      26,074,100

LEISURE SERVICE 0.8%
Gaylord Entertainment Company                          590,800      17,724,000

MEDIA - PUBLISHING 2.5%
The E.W. Scripps Company Class A                       633,600      30,135,600
Tribune Company                                        310,000      27,008,750
                                                                  ------------
                                                                    57,144,350
MEDIA - RADIO/TV 4.2%
AT&T Corporation-Liberty Media Group
  Class A (b)                                        1,020,000      37,485,000
Comcast Corporation Class A                            775,600      29,812,125
Cox Communications, Inc. Class A (b)                   790,000      29,081,875
                                                                  ------------
                                                                    96,379,000
NATURAL GAS DISTRIBUTION 1.8%
Enron Corporation                                      496,700      40,605,225

OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 4.8%
Apache Corporation                                   1,020,000      39,780,000
Barrett Resources Corporation (b)                    1,001,000      38,413,375
Devon Energy Corporation                               888,100      31,749,575
                                                                  ------------
                                                                   109,942,950
OIL - NORTH AMERICAN INTEGRATED 1.3%
Unocal Corporation                                     745,000      29,520,625

OIL WELL EQUIPMENT & SERVICE 4.6%
Baker Hughes, Inc.                                   1,000,000      33,500,000
Cooper Cameron Corporation (b)                         875,000      32,429,688
Weatherford International, Inc. (b)                  1,100,000      40,287,500
                                                                  ------------
                                                                   106,217,188
PAPER & FOREST PRODUCTS 1.0%
The Mead Corporation                                   580,000      24,215,000

REAL ESTATE 1.6%
Ayala Land, Inc.                                     2,456,400         777,752
CarrAmerica Realty Corporation                         381,600       9,540,000
ProLogis Trust                                       1,250,000      25,312,500
Shortland Properties, Ltd.                           2,513,625         778,083
                                                                  ------------
                                                                    36,408,335
RETAIL - DEPARTMENT STORE 1.2%
May Department Stores Company                          680,000      27,795,000

RETAIL - MAJOR CHAIN 1.5%
The Daiei, Inc. (b)                                    901,000       3,077,673
Kmart Corporation (b)                                1,720,000      28,272,500
Sears Canada, Inc.                                     141,900       3,047,022
                                                                  ------------
                                                                    34,397,195
RETAIL - SPECIALTY 1.4%
Office Depot, Inc. (b)                               1,420,000      31,328,750

STEEL 0.6%
Nucor Corporation                                      275,000      13,045,313

TELECOMMUNICATION EQUIPMENT 1.0%
Alcatel SA ADR                                         845,500      23,991,062

TELECOMMUNICATION SERVICE 11.0%
AT&T Corporation                                       486,200      27,136,037
Cable & Wireless Communications PLC
  Sponsored ADR (b)                                    215,100      10,432,350
Corning, Inc.                                          600,000      42,075,000
Global TeleSystems Group, Inc. (b)                     161,000      13,041,000
Korea Telecom Corporation Sponsored ADR (b)             75,000       3,000,000
MediaOne Group, Inc. (b)                               649,000      48,269,375
Nippon Telegraph & Telephone Corporation                   490       5,700,495
Omnipoint Corporation (b)                              870,000      25,175,625
Paging Network, Inc. (b)                             2,450,300      11,792,068
United States Cellular Corporation (b)                 732,300      39,178,050
Vodafone Group PLC Sponsored ADR                       134,100      26,417,700
                                                                  ------------
                                                                   252,217,700
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $1,452,408,150)                        2,019,644,557
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 12.1%
COMMERCIAL PAPER 0.1%
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                       $         100  $          100
Pitney Bowes Credit Corporation, 4.82%               2,547,800       2,547,800
                                                                  ------------
                                                                     2,547,900
REPURCHASE AGREEMENTS 11.8%
ABN-AMRO, Inc. (Dated 6/30/99), 4.78%, Due
  7/01/99 (Repurchase proceeds $272,036,116);
  Collateralized by: SLMA Notes, FNMA Notes,
  FHLMC Notes, Federal Home Loan Bank Bonds,
  Federal Farm Credit Bank Notes, Tennessee
  Valley Authority Bonds, and Resolution Funding
  Corporation Bonds (e)                            272,000,000     272,000,000

UNITED STATES GOVERNMENT ISSUES 0.2%
United States Treasury Bills:
  Due 7/01/99 (c)                                    1,210,000       1,210,000
  Due 8/05/99 (c)                                    3,000,000       2,987,253
                                                                --------------
                                                                     4,197,253
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $278,744,892)                   278,745,153
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $1,731,153,042) 99.8%      2,298,389,710
Other Assets and Liabilities, Net 0.2%                               3,762,548
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                               $2,302,152,258
================================================================================

                                                                              25
<PAGE>

SCHEDULES OF INVESTMENTS IN SECURITIES (CONTINUED)     JUNE 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
================================================================================
                       STRONG OPPORTUNITY FUND (CONTINUED)
================================================================================
- --------------------------------------------------------------------------------
FUTURES
- --------------------------------------------------------------------------------
                                             Underlying
                             Expiration      Face Amount        Unrealized
                                Date          at Value         Appreciation
- --------------------------------------------------------------------------------
Purchased:
109 Nikkei Index                9/99          $9,676,475         $772,538


================================================================================
                          STRONG STRATEGIC GROWTH FUND
================================================================================
                                                      Shares or
                                                      Principal        Value
                                                        Amount        (Note 2)
- --------------------------------------------------------------------------------
COMMON STOCKS 89.8%
AEROSPACE & DEFENSE 2.5%
Kellstrom Industries, Inc. (b)                           5,000        $ 91,250

BROKERAGE & INVESTMENT MANAGEMENT 1.1%
Donaldson, Lufkin & Jenrette, Inc.                         700          42,175

COMMERCIAL SERVICE 8.6%
RemedyTemp, Inc. Class A (b)                             7,100          95,850
Strayer Education, Inc.                                  2,500          76,719
Sykes Enterprises, Inc. (b)                              4,500         150,187
                                                                      --------
                                                                       322,756
COMPUTER - PERIPHERAL EQUIPMENT 3.2%
Lexmark International Group, Inc. Class A (b)            1,800         118,913

COMPUTER - PERSONAL & WORKSTATION 2.9%
Netopia, Inc. (b)                                        2,200          50,050
Security Dynamics Technologies, Inc. (b)                 2,800          59,500
                                                                      --------
                                                                       109,550
COMPUTER SERVICE 1.8%
Automatic Data Processing, Inc.                          1,500          66,000

COMPUTER SOFTWARE 10.8%
BMC Software, Inc. (b)                                   2,200         118,800
Citrix Systems, Inc. (b)                                 1,400          79,100
Sterling Software, Inc. (b)                              1,700          45,369
Transaction Systems Architects, Inc. (b)                 1,200          46,800
Zebra Technologies Corporation (b)                       3,000         115,312
                                                                      --------
                                                                       405,381
DIVERSIFIED OPERATIONS 3.0%
Tyco International, Ltd.                                 1,200         113,700

ELECTRONICS - SEMICONDUCTOR/COMPONENT 1.8%
Telcom Semiconductor, Inc. (b)                           6,900          66,413

HEALTHCARE - BIOMEDICAL/GENETIC 2.4%
Biogen, Inc. (b)                                         1,400          90,037

HEALTHCARE - DRUG/DIVERSIFIED 8.1%
Elan Corporation PLC Sponsored ADR (b)                   2,800          77,700
Jones Medical Industries, Inc.                           3,300         129,938
Warner-Lambert Company                                   1,400          97,125
                                                                      --------
                                                                       304,763
HEALTHCARE - INSTRUMENTATION 2.1%
Medtronic, Inc.                                          1,000          77,875

HEALTHCARE - MEDICAL SUPPLY 3.0%
Wesley Jessen VisionCare, Inc. (b)                       3,500         113,312

HEALTHCARE - PATIENT CARE 3.1%
Covance, Inc. (b                                         3,000          71,812
Quintiles Transnational Corporation (b)                  1,000          42,000
                                                                      --------
                                                                       113,812

OIL - NORTH AMERICAN EXPLORATION & PRODUCTION 1.9%
Devon Energy Corporation                                 2,000          71,500

PERSONAL & COMMERCIAL LENDING 7.1%
Associates First Capital Corporation                     2,300         101,919
The CIT Group, Inc.                                      3,100          89,512
Household International, Inc.                            1,600          75,800
                                                                      --------
                                                                       267,231
POLLUTION CONTROL 6.3%
Republic Services, Inc. (b)                              5,000         123,750
Waste Management, Inc.                                   2,113         113,574
                                                                      --------
                                                                       237,324
REAL ESTATE 5.7%
Apartment Investment & Management Company
  Class A                                                2,000          85,500
Duke Realty Investments, Inc.                            2,700          60,919
Mack-Cali Realty Corporation                             2,100          64,969
                                                                      --------
                                                                       211,388
RETAIL - DRUG STORE 2.9%
CVS Corporation                                          2,100         106,575

RETAIL - FOOD CHAIN 2.5%
US Foodservice (b)                                       2,200          93,775

RETAIL - SPECIALTY 2.9%
Global Imaging Systems, Inc. (b)                         6,000         109,500

TELECOMMUNICATION SERVICE 2.8%
Network Plus Corporation (b)                               500          10,438
Sprint Corporation                                       1,800          95,062
                                                                      --------
                                                                       105,500
TRANSPORTATION SERVICE 3.3%
C.H. Robinson Worldwide, Inc.                            3,400         124,950
- --------------------------------------------------------------------------------
TOTAL COMMON STOCKS (COST $2,874,329)                                3,363,680
- --------------------------------------------------------------------------------

SHORT-TERM INVESTMENTS (a) 11.2%
COMMERCIAL PAPER
INTEREST BEARING, DUE UPON DEMAND
General Mills, Inc., 4.82%                            $172,200         172,200
Pitney Bowes Credit Corporation, 4.82%                  26,700          26,700
Warner Lambert Company, 4.91%                          153,000         153,000
Wisconsin Electric Power Company, 4.91%                 68,100          68,100
                                                                      --------
                                                                       420,000
- --------------------------------------------------------------------------------
TOTAL SHORT-TERM INVESTMENTS (COST $420,000)                           420,000
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES (COST $3,294,329) 101.0%             3,783,680
Other Assets and Liabilities, Net (1.0%)                               (35,956)
- --------------------------------------------------------------------------------
NET ASSETS 100.0%                                                   $3,747,724
================================================================================


LEGEND
- --------------------------------------------------------------------------------
(a)  Short-term  investments  include any security  which has a maturity of less
     than one year.
(b)  Non-income producing security.
(c)  All or a portion of  security  pledged  to cover  margin  requirements  for
     futures contracts.
(d)  Restricted security.
(e)  See Note 2(I) of Notes to Financial Statements.
(f)  Affiliated Issuer. (See Note 7 of Notes to Financial Statements.)

Percentages are stated as a percent of net assets.

See Notes to Financial Statements.

26
<PAGE>
<TABLE>

STATEMENTS OF ASSETS AND LIABILITIES
- -----------------------------------------------------------------------------------------------------------------------
June 30, 1999 (Unaudited)

                                                                     (In Thousands, Except Per Share Amounts)
<CAPTION>
                                                             STRONG           STRONG         STRONG      STRONG MID CAP
                                                             COMMON         DISCOVERY        GROWTH       DISCIPLINED
                                                           STOCK FUND          FUND           FUND           FUND
                                                           ----------       ---------        ------      --------------
ASSETS:
  Investments in Securities, at Value
    Unaffiliated Issuers (Cost of $1,172,606, $218,785,
<S>                                                        <C>               <C>           <C>              <C>
    $1,525,371 and $6,785, respectively)                   $1,477,779        $244,122      $2,175,457       $7,138
    Affiliated Issuers (Cost of $7,826, $653,
    $0, and $0, respectively)                                  18,047             468              --           --
  Receivable for Securities Sold                                3,040           2,572          13,633           62
  Receivable for Fund Shares Sold                                  42               2             221           --
  Dividends and Interest Receivable                               964              99             337            6
  Other Assets                                                     93              33             113           16
                                                           ----------        --------      ----------       ------
  Total Assets                                              1,499,965         247,296       2,189,761        7,222

LIABILITIES:
  Payable for Securities Purchased                              3,832           3,850          20,486          171
  Payable for Fund Shares Redeemed                                  4              11              30           --
  Accrued Operating Expenses and Other Liabilities                380             248             260           21
                                                           ----------        --------      ----------       ------
  Total Liabilities                                             4,216           4,109          20,776          192
                                                           ----------        --------      ----------       ------
NET ASSETS                                                 $1,495,749        $243,187      $2,168,985       $7,030
                                                           ==========        ========      ==========       ======
NET ASSETS CONSIST OF:
  Capital Stock (par value and paid-in capital)            $1,020,524        $240,778      $1,322,652       $6,269
  Accumulated Net Investment Loss                                (464)           (824)         (8,008)         (14)
  Accumulated Net Realized Gain (Loss)                        160,491         (21,864)        204,255          422
  Net Unrealized Appreciation                                 315,198          25,097         650,086          353
                                                           ----------        --------      ----------       ------
  Net Assets                                               $1,495,749        $243,187      $2,168,985       $7,030
                                                           ==========        ========      ==========       ======
Capital Shares Outstanding (Unlimited Number Authorized)       61,565          14,459          83,278          546

NET ASSET VALUE PER SHARE                                      $24.30          $16.82          $26.05       $12.88
                                                               ======          ======          ======       ======
</TABLE>
<TABLE>
<CAPTION>

                                                                             STRONG          STRONG        STRONG
                                                                             MID CAP      OPPORTUNITY     STRATEGIC
                                                                           GROWTH FUND        FUND       GROWTH FUND
                                                                           -----------    -----------    -----------
ASSETS:
  Investments in Securities, at Value
<S>                                                                         <C>           <C>              <C>
    (Cost of $27,131, $1,731,153 and $3,294, respectively)                  $30,890       $2,298,390       $3,784
  Receivable for Securities Sold                                              1,303            8,659            6
  Receivable for Fund Shares Sold                                                --              662           15
  Dividends and Interest Receivable                                               8            1,498            2
  Other Assets                                                                   35               90            4
                                                                            -------       ----------       ------
  Total Assets                                                               32,236        2,309,299        3,811
LIABILITIES:
  Payable for Securities Purchased                                            2,827            6,695           59
  Payable for Fund Shares Redeemed                                               --              280           --
  Accrued Operating Expenses and Other Liabilities                               31              172            4
                                                                            -------       ----------       ------
  Total Liabilities                                                           2,858            7,147           63
                                                                            -------       ----------       ------
NET ASSETS                                                                  $29,378       $2,302,152       $3,748
                                                                            =======       ==========       ======
NET ASSETS CONSIST OF:
  Capital Stock (par value and paid-in capital)                             $20,341       $1,505,124       $3,020
  Accumulated Net Investment Income (Loss)                                     (128)           2,111          (16)
  Undistributed Net Realized Gain                                             5,406          226,907          255
  Net Unrealized Appreciation                                                 3,759          568,010          489
                                                                            -------       ----------       ------
  Net Assets                                                                $29,378       $2,302,152       $3,748
                                                                            =======       ==========       ======
Capital Shares Outstanding (Unlimited Number Authorized)                      1,773           51,711          294

NET ASSET VALUE PER SHARE                                                    $16.57           $44.52       $12.75
                                                                             ======           ======       ======

                                                                                                               27
                                           See Notes to Financial Statements.
</TABLE>
<PAGE>
<TABLE>

STATEMENTS OF OPERATIONS
- ------------------------------------------------------------------------------------------------------------------------------------
For the Six Months Ended June 30, 1999 (Unaudited)

                                                                               (In Thousands)
<CAPTION>
                                              STRONG      STRONG     STRONG  STRONG MID CAP      STRONG        STRONG      STRONG
                                              COMMON     DISCOVERY   GROWTH    DISCIPLINED      MID CAP     OPPORTUNITY   STRATEGIC
                                            STOCK FUND     FUND       FUND        FUND        GROWTH FUND       FUND     GROWTH FUND
                                            ----------   ---------   ------  --------------   -----------   -----------  -----------

INCOME:
  Dividends (net of withholding taxes of
    $30, $0, $0, $0 $0, $24 and $0,
<S>                                          <C>          <C>       <C>           <C>           <C>          <C>            <C>
    respectively)                            $  4,232     $   990   $  1,773      $ 13          $   32       $  9,164       $  9
  Interest                                      3,346         194      2,553         9              31          5,201          7
                                             --------     -------   --------      ----          ------       --------       ----
  Total Income                                  7,578       1,184      4,326        22              63         14,365         16

EXPENSES:
  Investment Advisory Fees                      6,802       1,294      9,660        18             110         10,206         16
  Custodian Fees                                   50          25         49        16               8             58          2
  Shareholder Servicing Costs                     932         345      2,127         4              35          1,564          8
  Professional Fees                                37          26         68         3               7             43          5
  Reports to Shareholders                         173          87        341         6               8            301          2
  Federal and State Registration Fees              15          14         47        18              14             37         19
  Other                                            33           9         42         1               9             45          1
                                             --------     -------   --------      ----          ------       --------       ----
  Total Expenses Before Waivers
    and Absorptions                             8,042       1,800     12,334        66             191         12,254         53
  Involuntary Expense Waivers
    and Absorptions by Advisor                     --          --         --       (30)             --             --        (21)
                                             --------     -------   --------      ----          ------       --------       ----
  Expenses, Net                                 8,042       1,800     12,334        36             191         12,254         32
                                             --------     -------   --------      ----          ------       --------       ----
NET INVESTMENT INCOME (LOSS)                     (464)       (616)    (8,008)      (14)           (128)         2,111        (16)

REALIZED AND UNREALIZED GAIN (LOSS):
  Net Realized Gain (Loss) on:
    Investments                               169,230      (2,936)   248,605       423           5,879        241,837        347
    Futures Contracts and Options              (2,946)     (7,906)    (2,087)       (1)             --         (3,977)        --
    Foreign Currencies                             (2)         --         --        --              --             --         --
                                             --------     -------   --------      ----          ------       --------       ----
    Net Realized Gain (Loss)                  166,282     (10,842)   246,518       422           5,879        237,860        347
  Net Change in Unrealized Appreciation/
    Depreciation on:
    Investments                                85,449      (4,626)    54,880       353            (378)       124,470         90
    Futures Contracts and Options                 (10)       (492)        --        --              --            225         --
    Foreign Currencies                             (3)         --         --        --              --             (3)        --
                                             --------     -------   --------      ----          ------       --------       ----
    Net Change in Unrealized
      Appreciation/Depreciation                85,436      (5,118)    54,880       353            (378)       124,692         90
                                             --------     -------   --------      ----          ------       --------       ----
NET GAIN (LOSS) ON INVESTMENTS                251,718     (15,960)   301,398       775           5,501        362,552        437
                                             --------     -------   --------      ----          ------       --------       ----
NET INCREASE (DECREASE) IN NET ASSETS
  RESULTING FROM OPERATIONS                  $251,254    ($16,576)  $293,390      $761          $5,373       $364,663       $421
                                             ========     =======   ========      ====          ======       ========       ====


                                                    See Notes to Financial Statements.

</TABLE>

28
<PAGE>
<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS
- ----------------------------------------------------------------------------------------------------------------------
                                                                              (In Thousands)
<CAPTION>
                                                         STRONG COMMON STOCK FUND          STRONG DISCOVERY FUND
                                                     --------------------------------  -------------------------------
                                                     Six Months Ended    Year Ended    Six Months Ended   Year Ended
                                                       June 30, 1999    Dec. 31, 1998    June 30, 1999   Dec. 31, 1998
                                                     ----------------   -------------  ----------------  -------------
                                                         (Unaudited)                      (Unaudited)
OPERATIONS:
<S>                                                      <C>             <C>               <C>            <C>
  Net Investment Income (Loss)                          ($      464)     $      180        ($    616)     ($  1,317)
  Net Realized Gain (Loss)                                  166,282         128,303          (10,842)        27,775
  Net Change in Unrealized Appreciation/Depreciation         85,436         (40,049)          (5,118)        (3,936)
                                                         ----------      ----------         --------       --------
  Net Increase (Decrease) in Net Assets
    Resulting from Operations                               251,254          88,434          (16,576)        22,522

DISTRIBUTIONS FROM NET REALIZED GAINS                       (48,528)        (86,285)          (3,366)        (4,244)

CAPITAL SHARE TRANSACTIONS:
  Proceeds from Shares Sold                                  75,935         254,809           50,071        247,185
  Proceeds from Reinvestment of Distributions                47,039          83,552            3,297          4,134
  Payment for Shares Redeemed                              (269,852)       (465,436)        (112,234)      (330,613)
                                                         ----------      ----------         --------       --------
  Net Decrease in Net Assets from Capital
    Share Transactions                                     (146,878)       (127,075)         (58,866)       (79,294)
                                                         ----------      ----------         --------       --------
TOTAL INCREASE (DECREASE) IN NET ASSETS                      55,848        (124,926)         (78,808)       (61,016)

NET ASSETS:
  Beginning of Period                                     1,439,901       1,564,827          321,995        383,011
                                                         ----------      ----------         --------       --------
  End of Period                                          $1,495,749      $1,439,901         $243,187       $321,995
                                                         ==========      ==========         ========       ========
TRANSACTIONS IN SHARES OF THE FUND:
  Sold                                                        3,469          11,860            2,975         14,251
  Issued in Reinvestment of Distributions                     2,255           4,039              212            235
  Redeemed                                                  (12,525)        (21,988)          (6,670)       (19,075)
                                                             ------          ------            -----         ------
  Net Decrease in Shares of the Fund                         (6,801)         (6,089)          (3,483)        (4,589)
                                                              =====           =====            =====          =====


                                              See Notes to Financial Statements.
                                                                                                                 29
</TABLE>
<PAGE>
<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS (CONTINUED)
- --------------------------------------------------------------------------------------------------------------------------
                                                                                (In Thousands)
<CAPTION>
                                                                STRONG GROWTH FUND         STRONG MID CAP DISCIPLINED FUND
                                                        ---------------------------------  -------------------------------
                                                        Six Months Ended     Year Ended           Six Months Ended
                                                          June 30, 1999     Dec. 31, 1998           June 30, 1999
                                                        ----------------    -------------  -------------------------------
                                                           (Unaudited)                           (Unaudited) (Note 1)
OPERATIONS:
<S>                                                        <C>               <C>                       <C>
  Net Investment Loss                                      ($    8,008)      ($   10,416)              ($   14)
  Net Realized Gain                                            246,518           104,907                   422
  Net Change in Unrealized Appreciation/Depreciation            54,880           304,272                   353
                                                            ----------        ----------                ------
  Net Increase in Net Assets Resulting from Operations         293,390           398,763                   761

DISTRIBUTIONS FROM NET REALIZED GAINS                          (66,238)              (37)                   --

CAPITAL SHARE TRANSACTIONS:
  Proceeds from Shares Sold                                    305,791           379,839                 9,188
  Proceeds from Reinvestment of Distributions                   64,809                36                    --
  Payment for Shares Redeemed                                 (263,442)         (602,747)               (2,919)
  Net Proceeds from Acquisition (Note 8)                            --            61,697                    --
                                                            ----------        ----------                ------
  Net Increase (Decrease) in Net Assets
    from Capital Share Transactions                            107,158          (161,175)                6,269
                                                            ----------        ----------                ------
TOTAL INCREASE IN NET ASSETS                                   334,310           237,551                 7,030

NET ASSETS:
  Beginning of Period                                        1,834,675         1,597,124                    --
                                                            ----------        ----------                ------
  End of Period                                             $2,168,985        $1,834,675                $7,030
                                                            ==========        ==========                ======
TRANSACTIONS IN SHARES OF THE FUND:
  Sold                                                          12,499            19,329                   791
  Issued in Reinvestment of Distributions                        2,662                 2                    --
  Redeemed                                                     (10,808)          (30,918)                 (245)
  Issued to Effect Acquisition (Note 8)                             --             3,292                    --
                                                                 -----             -----                   ---
  Net Increase (Decrease) in Shares of the Fund                  4,353            (8,295)                  546
                                                                 =====             =====                   ===

</TABLE>
                                             See Notes to Financial Statements.

30
<PAGE>
<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS (CONTINUED)
- --------------------------------------------------------------------------------------------------------------------------
                                                                                (In Thousands)
<CAPTION>
                                                       STRONG MID CAP GROWTH FUND            STRONG OPPORTUNITY FUND
                                                     --------------------------------     --------------------------------
                                                     Six Months Ended    Year Ended       Six Months Ended    Year Ended
                                                       June 30, 1999    Dec. 31, 1998       June 30, 1999    Dec. 31, 1998
                                                     ----------------   -------------     ----------------   -------------
                                                        (Unaudited)                          (Unaudited)
OPERATIONS:
<S>                                                      <C>              <C>                 <C>             <C>
  Net Investment Income (Loss)                           ($   128)        ($   172)           $    2,111      $    3,089
  Net Realized Gain                                         5,879               22               237,860         213,971
  Net Change in Unrealized Appreciation/Depreciation         (378)           1,987               124,692          61,275
                                                          -------          -------            ----------      ----------
  Net Increase in Net Assets Resulting from Operations      5,373            1,837               364,663         278,335

DISTRIBUTIONS:
  From Net Investment Income                                   --               --                   (44)         (2,486)
  From Net Realized Gains                                      --               --               (60,524)       (220,319)
                                                          -------          -------            ----------      ----------
  Total Distributions                                          --               --               (60,568)       (222,805)

CAPITAL SHARE TRANSACTIONS:
  Proceeds from Shares Sold                                18,728           23,567               211,978         348,997
  Proceeds from Reinvestment of Distributions                  --               --                59,194         217,297
  Payment for Shares Redeemed                             (14,020)         (21,772)             (311,042)       (508,783)
                                                          -------          -------            ----------      ----------
  Net Increase (Decrease) in Net Assets
    from Capital Share Transactions                         4,708            1,795               (39,870)         57,511
                                                          -------          -------            ----------      ----------
TOTAL INCREASE IN NET ASSETS                               10,081            3,632               264,225         113,041

NET ASSETS:
  Beginning of Period                                      19,297           15,665             2,037,927       1,924,886
                                                          -------          -------            ----------      ----------
  End of Period                                           $29,378          $19,297            $2,302,152      $2,037,927
                                                          =======          =======            ==========      ==========
TRANSACTIONS IN SHARES OF THE FUND:
  Sold                                                      1,268            1,888                 5,124           8,778
  Issued in Reinvestment of Distributions                      --               --                 1,542           5,578
  Redeemed                                                   (976)          (1,784)               (7,726)        (13,034)
                                                            -----            -----                 -----          ------
  Net Increase (Decrease) in Shares of the Fund               292              104                (1,060)          1,322
                                                            =====            =====                 =====          ======


                                               See Notes to Financial Statements.

                                                                                                                      31
</TABLE>
<PAGE>
<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS (CONTINUED)
- ----------------------------------------------------------------------------------------------------
                                                                            (In Thousands)
<CAPTION>
                                                                     STRONG STRATEGIC GROWTH FUND
                                                                   ---------------------------------
                                                                   Six Months Ended     Year Ended
                                                                     June 30, 1999     Dec. 31, 1998
                                                                   ----------------    -------------
                                                                      (Unaudited)        (Note 1)
OPERATIONS:
<S>                                                                     <C>              <C>
  Net Investment Loss                                                   ($   16)         ($    9)
  Net Realized Gain (Loss)                                                  347              (91)
  Net Change in Unrealized Appreciation/Depreciation                         90              399
                                                                         ------           ------
  Net Increase in Net Assets Resulting from Operations                      421              299

DISTRIBUTIONS FROM NET INVESTMENT INCOME                                     --               --

CAPITAL SHARE TRANSACTIONS:
  Proceeds from Shares Sold                                               1,432            5,323
  Proceeds from Reinvestment of Distributions                                --               --
  Payment for Shares Redeemed                                            (1,571)          (2,156)
                                                                         ------           ------
  Net Increase (Decrease) in Net Assets from Capital Share Transactions    (139)           3,167
                                                                         ------           ------
TOTAL INCREASE IN NET ASSETS                                                282            3,466

NET ASSETS:
  Beginning of Period                                                     3,466               --
                                                                         ------           ------
  End of Period                                                          $3,748           $3,466
                                                                         ======           ======
TRANSACTIONS IN SHARES OF THE FUND:
  Sold                                                                      126              528
  Issued in Reinvestment of Distributions                                    --               --
  Redeemed                                                                 (140)            (220)
                                                                            ---              ---
  Net Increase (Decrease) in Shares of the Fund                             (14)             308
                                                                            ===              ===
</TABLE>


                                 See Notes to Financial Statements.
32
<PAGE>

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
June 30, 1999 (Unaudited)

1.   ORGANIZATION
     The  accompanying  financial  statements  represent the Strong Growth Funds
     (the  "Funds"),  which  include  the  following  funds,  each  with its own
     investment objectives and policies:
     -    Strong Common Stock Fund, Inc. (1)
     -    Strong Discovery Fund, Inc. (1)
     -    Strong Growth Fund (a series of Strong Equity Funds, Inc. (1))
     -    Strong Mid Cap Disciplined Fund (a series of Strong Equity Funds, Inc.
          (1))
     -    Strong Mid Cap Growth Fund (a series of Strong Equity Funds, Inc. (1))
          formerly known as Strong Mid Cap Fund
     -    Strong Opportunity Fund, Inc. (1)
     -    Strong  Strategic  Growth Fund (a series of Strong Equity Funds,  Inc.
          (1))

     (1) A diversified,  open-end management investment company registered under
     the Investment Company Act of 1940.

     Strong Strategic Growth Fund commenced  operations on June 30, 1998. Strong
     Mid Cap Disciplined Fund commenced operations on January 4, 1999.

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

     (A)  Security  Valuation  --  Portfolio  securities  traded  primarily on a
          principal  securities  exchange are valued at the last reported  sales
          price or the mean of the  latest  bid and asked  prices  where no last
          sales  price is  available.  Securities  traded  over-the-counter  are
          valued  at the mean of the  latest  bid and  asked  prices or the last
          reported  sales  price.  Debt  securities  not  traded on a  principal
          securities  exchange are valued  through  valuations  obtained  from a
          commercial  pricing  service,  otherwise  sale or bid prices are used.
          Securities for which market  quotations are not readily  available are
          valued at fair value as  determined  in good faith under  consistently
          applied procedures established by and under the general supervision of
          the Board of Directors.  Securities which are purchased within 60 days
          of  their  stated  maturity  are  valued  at  amortized  cost,   which
          approximates fair value.

          The Funds may own certain  investment  securities which are restricted
          as  to  resale.   These   securities   are  valued  after  giving  due
          consideration  to pertinent  factors  including  recent private sales,
          market conditions and the issuer's  financial  performance.  The Funds
          generally bear the costs,  if any,  associated with the disposition of
          restricted  securities.   Aggregate  cost  and  fair  value  of  these
          restricted securities held at June 30, 1999 were as follows:

                                Aggregate          Aggregate     Percent of
                                   Cost           Fair Value     Net Assets
                               -----------        ----------     ----------
STRONG  COMMON STOCK FUND      $13,876,120        $3,126,144         0.2%
STRONG DISCOVERY FUND              652,995           468,157         0.2%

     (B)  Federal Income and Excise Taxes and  Distributions  to Shareholders --
          The Funds  intend  to comply  with the  requirements  of the  Internal
          Revenue Code  applicable  to  regulated  investment  companies  and to
          distribute   substantially  all  of  their  taxable  income  to  their
          shareholders  in a manner  which  results in no tax cost to the Funds.
          Therefore, no federal income or excise tax provision is required.

          The  character  of  distributions   made  during  the  year  from  net
          investment  income  or net  realized  gains  for  financial  statement
          purposes may differ from the  characterization  for federal income tax
          purposes due to differences  in the  recognition of income and expense
          items for financial  statement and tax  purposes.  Where  appropriate,
          reclassifications  between  net  asset  accounts  are  made  for  such
          differences that are permanent in nature.

          Each Fund generally  pays  dividends  from net  investment  income and
          distributes any net capital gains that it realizes annually.

     (C)  Realized  Gains and Losses on  Investment  Transactions  -- Investment
          security  transactions  are  recorded as of the trade  date.  Gains or
          losses realized on investment transactions are determined by comparing
          the  identified  cost of the  security  lot sold  with  the net  sales
          proceeds.

     (D)  Certain   Investment  Risks  --  The  Funds  may  utilize   derivative
          instruments  including  options,  futures and other  instruments  with
          similar  characteristics  to the extent that they are consistent  with
          the Funds' investment objectives and limitations.  The Funds intend to
          use such  derivative  instruments  primarily  to hedge or protect from
          adverse  movements in securities  prices or interest rates. The use of
          these  instruments  may  involve  risks  such  as the  possibility  of
          illiquid  markets or  imperfect  correlation  between the value of the
          instruments and the underlying  securities,  or that the  counterparty
          will fail to perform its obligations.

          Investments  in  foreign   denominated   assets  or  forward  currency
          contracts may involve greater risks than domestic investments,  due to
          currency, political and economic, regulatory and market risks.

                                                                              33
<PAGE>

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
June 30, 1999 (Unaudited)

     (E)  Futures -- Upon entering into a futures contract,  the Funds pledge to
          the broker cash or other  investments  equal to the  minimum  "initial
          margin"  requirements of the exchange.  Additional  securities held by
          the Funds may be designated  as collateral on open futures  contracts.
          The Funds  also  receive  from or pay to the  broker an amount of cash
          equal to the  daily  fluctuation  in the value of the  contract.  Such
          receipts or payments are known as "variation  margin" and are recorded
          as unrealized gains or losses.  When the futures contract is closed, a
          realized gain or loss is recorded equal to the difference  between the
          value of the  contract  at the time it was opened and the value at the
          time it was closed.

     (F)  Options -- The Funds may write put or call options.  Premiums received
          by the Funds upon writing put or call options are recorded as an asset
          with a corresponding  liability which is subsequently  adjusted to the
          current  market  value  of the  option.  When an  option  expires,  is
          exercised,  or is closed,  the Funds  realize a gain or loss,  and the
          liability  is  eliminated.  The  Funds  continue  to bear  the risk of
          adverse  movements  in the price of the  underlying  asset  during the
          period of the option,  although any  potential  loss during the period
          would be reduced by the amount of the option premium received.

     (G)  Foreign Currency Translation -- Investment securities and other assets
          and  liabilities   initially   expressed  in  foreign  currencies  are
          converted to U.S. dollars based upon current exchange rates. Purchases
          and sales of foreign investment securities and income are converted to
          U.S.  dollars based upon  currency  exchange  rates  prevailing on the
          respective  dates of such  transactions.  The  effect  of  changes  in
          foreign  exchange rates on realized and  unrealized  security gains or
          losses is reflected as a component of such gains or losses.

     (H)  Forward  Foreign  Currency  Exchange   Contracts  --  Forward  foreign
          currency  exchange  contracts  are valued at the forward  rate and are
          marked-to-market  daily.  The change in market value is recorded as an
          unrealized gain or loss. When the contract is closed, the Funds record
          an exchange gain or loss equal to the difference  between the value of
          the  contract  at the time it was  opened and the value at the time it
          was closed.

     (I)  Repurchase   Agreements  --  The  Funds  may  enter  into   repurchase
          agreements  with  institutions  that the  Funds'  investment  advisor,
          Strong Capital  Management,  Inc. ("the Advisor"),  has determined are
          creditworthy  pursuant to criteria  adopted by the Board of Directors.
          Each repurchase  agreement is recorded at cost. The Funds require that
          the collateral,  represented by securities  (primarily U.S. Government
          securities), in a repurchase transaction be maintained in a segregated
          account  with a custodian  bank in a manner  sufficient  to enable the
          Funds to obtain  those  securities  in the  event of a default  of the
          repurchase  agreement.  On a daily basis,  the Advisor  monitors  each
          repurchase agreement to ensure the value of the collateral,  including
          accrued  interest,  is at least equal to the amounts owed to the Funds
          under each repurchase agreement.

     (J)  Use of  Estimates  --  The  preparation  of  financial  statements  in
          conformity  with generally  accepted  accounting  principles  requires
          management to make estimates and assumptions  that affect the reported
          amounts in these  financial  statements.  Actual  results could differ
          from those estimates.

     (K)  Other  --  Dividend  income  and  distributions  to  shareholders  are
          recorded on the ex-dividend  date.  Interest income is recorded on the
          accrual basis and includes amortization of premiums and discounts.

3.   RELATED PARTY TRANSACTIONS
     The  Advisor,  with whom certain  officers  and  directors of the Funds are
     affiliated,   provides   investment   advisory   services  and  shareholder
     recordkeeping and related services to the Funds.  Investment advisory fees,
     which are  established  by terms of the Advisory  Agreements,  are based on
     annualized  rates of 1.00% of the  average  daily net  assets of the Funds.
     Based on the  terms of the  Advisory  Agreements,  advisory  fees and other
     expenses  will be waived by the  Advisor if the Fund's  operating  expenses
     exceed 2% of the average  daily net assets of the Fund.  In  addition,  the
     Fund's Advisor may  voluntarily  waive or absorb certain  expenses at their
     discretion. Shareholder recordkeeping and related service fees are based on
     contractually  established  rates  for  each  open and  closed  shareholder
     account.  The Advisor is compensated for certain other services  related to
     costs incurred for reports to shareholders.

     The Funds may invest cash in money  market funds  sponsored  and managed by
     the Advisor, subject to certain limitations. The terms of such transactions
     are  identical  to those of  non-related  entities  except  that,  to avoid
     duplicate  investment advisory fees, advisory fees of each Fund are reduced
     by an  amount  equal  to  advisory  fees  paid  to the  Advisor  under  its
     investment advisory agreement with the money market funds.


34
<PAGE>

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

     Certain  information  regarding related party  transactions,  excluding the
     effects of waivers and absorptions, for the six months ended June 30, 1999,
     is as follows:

                                                  Shareholder
                               Payable to     Servicing and Other   Unaffiliated
                               Advisor at          Expenses          Directors'
                             June 30, 1999     Paid to Advisor          Fees
                             -------------    -------------------   ------------
STRONG COMMON STOCK FUND        $111,580         $  997,352            $6,632
STRONG DISCOVERY FUND             14,069            358,951             2,066
STRONG GROWTH FUND                96,808          2,042,337             8,276
STRONG MID CAP DISCIPLINED FUND        2              3,485               750
STRONG MID CAP GROWTH FUND        25,740             34,230               750
STRONG OPPORTUNITY FUND           93,983          1,596,034             9,122
STRONG STRATEGIC GROWTH FUND        (128)             6,310               750


4.   LINE OF CREDIT
     The Strong Funds have established a line of credit  agreement  ("LOC") with
     certain  financial  institutions  to be used  for  temporary  or  emergency
     purposes,  primarily for financing redemption payments. Combined borrowings
     among all  participating  Strong Funds are subject to a $350 million cap on
     the total line of credit.  For individual  Funds,  borrowings under the LOC
     are limited to either the lesser of 15% of the market value of total assets
     or any explicit borrowing limits in the Funds' prospectus. Borrowings under
     the LOC bear interest  based on  prevailing  market rates as defined in the
     LOC. A commitment  fee of .07% per annum is incurred on the unused  portion
     of the line of credit and is allocated to all  participating  Strong Funds.
     At June 30, 1999, there were no borrowings by the Funds  outstanding  under
     the LOC.


5.   INVESTMENT TRANSACTIONS
     The aggregate  purchases and sales of long-term  securities  during the six
     months ended June 30, 1999, were as follows:

                                       Purchases               Sales
                                    --------------        --------------
STRONG COMMON STOCK FUND            $  509,442,913        $  680,852,613
STRONG DISCOVERY FUND                  247,317,007           289,342,306
STRONG GROWTH FUND                   2,749,003,688         2,721,082,271
STRONG MID CAP DISCIPLINED FUND          9,026,389             3,385,178
STRONG MID CAP GROWTH FUND             100,592,146            95,091,052
STRONG OPPORTUNITY FUND                781,645,835           835,124,190
STRONG STRATEGIC GROWTH FUND             2,496,407             2,836,863


6.   INCOME TAX INFORMATION
     The investment  cost,  gross  unrealized  appreciation  and depreciation on
     investments  and  capital  loss  carryovers  (expiring  in varying  amounts
     through 2007) for federal income tax purposes were as follows:
<TABLE>

                                                      at June 30, 1999                           at December 31, 1998
                               ---------------------------------------------------------------   --------------------
<CAPTION>
                                 Federal Tax      Unrealized      Unrealized           Net         Net Capital Loss
                                     Cost        Appreciation    Depreciation     Appreciation       Carryovers
                               --------------    ------------    ------------     ------------     ----------------
<S>                            <C>               <C>              <C>             <C>                <C>
STRONG COMMON STOCK FUND       $1,185,370,119    $405,879,181     $95,423,500     $310,455,681       $        --
STRONG DISCOVERY FUND             224,548,803      42,718,967      22,678,097       20,040,870                --
STRONG GROWTH FUND              1,553,089,410     630,397,181       8,029,503      622,367,678        15,174,979
STRONG MID CAP DISCIPLINED FUND     6,805,920         600,112         268,109          332,003                --
STRONG MID CAP GROWTH FUND         27,981,889       3,080,115         171,785        2,908,330           517,673
STRONG OPPORTUNITY FUND         1,742,482,985     618,190,175      62,283,450      555,906,725                --
STRONG STRATEGIC GROWTH FUND        3,317,320         543,115          76,755          466,360            68,378

                                                                                                                   35
</TABLE>
<PAGE>

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
June 30, 1999 (Unaudited)

7.   INVESTMENTS IN AFFILIATES
     Affiliated  issuers,  as defined under the Investment  Company Act of 1940,
     include  those in which the  Fund's  holdings  represent  5% or more of the
     outstanding  voting securities of the issuer,  and any other Strong Fund. A
     summary of  transactions  in the securities of these issuers during the six
     months ended June 30, 1999 is as follows:
<TABLE>

<CAPTION>
                            Balance of                                      Balance of              Dividend/Interest
                           Shares or Par      Gross        Gross Sales    Shares or Par    Value         Income          Realized
                            Value Held       Purchases         and          Value Held    June 30,   Jan.1 - June 30,   Gain/(Loss)
                           Jan. 1, 1999    and Additions    Reductions    June 30, 1999     1999          1999            on Sale
                           ------------    -------------   -----------    -------------   --------  -----------------   ----------
STRONG COMMON STOCK FUND
- ------------------------
<S>                          <C>              <C>            <C>             <C>        <C>                             <C>
IHOP Corporation             470,000          375,000        (95,000)        750,000    $18,046,875        --           $1,501,267

STRONG DISCOVERY FUND
- ---------------------
Halsey Drug Company, Inc.
  Common Stock               398,055               --       (398,055)             --             --        --           (1,225,081)
Halsey Drug Company, Inc.
  Restricted Common Stock     13,845            9,230             --          23,075         50,627        --                   --
Halsey Drug Company, Inc.
  Convertible Bonds          600,000               --             --         600,000        404,994        --                   --
Halsey Drug Company, Inc.
  Warrants                    21,429               --             --          21,429         12,536        --                   --

</TABLE>

8.   ACQUISITION INFORMATION
     Effective  October  30,  1998,  Strong  Growth  Fund  acquired,  through  a
     non-taxable exchange,  substantially all the net assets of Strong Small Cap
     Fund.  Strong Growth Fund issued  3,292,272  shares (valued at $61,697,184)
     for the 6,353,984  shares of Strong Small Cap Fund  outstanding  at October
     30, 1998.  The net assets of  $61,697,184 of Strong Small Cap Fund included
     net unrealized depreciation on investments of $6,038,997, undistributed net
     investment  losses  of  $1,076,450,  accumulated  realized  net  losses  of
     $12,771,247 and capital loss carryovers of $15,711,933  which were combined
     with those of Strong Growth Fund.  Strong Growth Fund utilized  $536,954 of
     these capital loss carryforwards in 1998.

36
<PAGE>

<TABLE>

FINANCIAL HIGHLIGHTS
- ------------------------------------------------------------------------------------------------------------------------------------
STRONG COMMON STOCK FUND
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                    PERIOD ENDED
                                                    --------------------------------------------------------------------------------
<CAPTION>
                                                     June 30,       Dec. 31,      Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31,
Selected Per-Share Data(a)                            1999(b)         1998          1997         1996         1995         1994
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>            <C>           <C>          <C>          <C>          <C>
Net Asset Value, Beginning of Period                  $21.06         $21.02        $20.24       $19.77       $16.74       $17.94
Income From Investment Operations
  Net Investment Income (Loss)                         (0.01)          0.00(c)       0.01         0.06         0.11         0.04
  Net Realized and Unrealized Gains (Losses)
    on Investments                                      4.04           1.36          4.67         3.87         5.25        (0.13)
- ------------------------------------------------------------------------------------------------------------------------------------
  Total from Investment Operations                      4.03           1.36          4.68         3.93         5.36        (0.09)

Less Distributions
  From Net Investment Income                              --             --         (0.01)       (0.06)       (0.10)       (0.04)
  In Excess of Net Investment Income                      --             --         (0.03)       (0.05)       (0.02)          --
  From Net Realized Gains                              (0.79)         (1.32)        (3.86)       (3.35)       (2.21)       (1.07)
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Distributions                                  (0.79)         (1.32)        (3.90)       (3.46)       (2.33)       (1.11)
- ------------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period                        $24.30         $21.06        $21.02       $20.24       $19.77       $16.74
====================================================================================================================================
Ratios and Supplemental Data
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Return                                        +19.7%          +6.6%        +24.0%       +20.5%       +32.4%        -0.5%
  Net Assets, End of Period (In Millions)             $1,496         $1,440        $1,565       $1,244       $1,061         $790
  Ratio of Expenses to Average Net Assets               1.2%*          1.2%          1.2%         1.2%         1.2%         1.3%
  Ratio of Net Investment Income (Loss) to Average
    Net Assets                                         (0.1%)*         0.0%(c)       0.0%(c)      0.3%         0.5%         0.3%
  Portfolio Turnover Rate                              39.1%         102.6%        117.3%        90.9%        91.5%        83.0%



STRONG DISCOVERY FUND
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                    PERIOD ENDED
                                                    --------------------------------------------------------------------------------
                                                     June 30,       Dec. 31,      Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31,
Selected Per-Share Data(a)                            1999(b)         1998          1997         1996         1995         1994
- ------------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period                  $17.95         $17.00        $17.45       $18.96       $15.67       $18.05
Income From Investment Operations
  Net Investment Income (Loss)                         (0.05)         (0.07)        (0.16)       (0.15)       (0.05)        0.16
  Net Realized and Unrealized Gains (Losses)
    on Investments                                     (0.86)          1.26          2.00         0.35         5.48        (1.17)
- ------------------------------------------------------------------------------------------------------------------------------------
  Total from Investment Operations                     (0.91)          1.19          1.84         0.20         5.43        (1.01)

Less Distributions
  From Net Investment Income                              --             --            --           --           --        (0.11)
  In Excess of Net Investment Income                      --             --            --        (1.12)       (0.10)       (0.58)
  From Net Realized Gains                              (0.22)         (0.24)        (1.90)       (0.59)       (2.04)       (0.68)
  In Excess of Net Realized Gains                         --             --         (0.39)          --           --           --
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Distributions                                  (0.22)         (0.24)        (2.29)       (1.71)       (2.14)       (1.37)
- ------------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period                        $16.82         $17.95        $17.00       $17.45       $18.96       $15.67
====================================================================================================================================
Ratios and Supplemental Data
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Return                                         -5.0%          +7.0%        +10.9%        +1.5%       +34.8%        -5.7%
  Net Assets, End of Period (In Millions)               $243           $322          $383         $514         $599         $388
  Ratio of Expenses to Average Net Assets               1.4%*          1.3%          1.4%         1.4%         1.4%         1.5%
  Ratio of Net Investment Income (Loss) to Average
    Net Assets                                         (0.5%)*        (0.4%)        (0.9%)       (0.3%)       (0.4%)        0.7%
  Portfolio Turnover Rate                              94.1%         185.9%        169.9%       792.8%       516.0%       606.1%


  *  Calculated on an annualized basis.
(a)  Information  presented  relates  to a share  of  capital  stock of the Fund outstanding for the entire period.
(b)  For the six months ended June 30, 1999 (unaudited).
(c)  Amount calculated is less than $0.01 or 0.1%.

                       See Notes to Financial Statements.

                                                                                                                              37
</TABLE>
<PAGE>

<TABLE>

FINANCIAL HIGHLIGHTS (CONTINUED)
- ------------------------------------------------------------------------------------------------------------------------------------
STRONG GROWTH FUND
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                    PERIOD ENDED
                                                    --------------------------------------------------------------------------------
<CAPTION>
                                                     June 30,       Dec. 31,      Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31,
Selected Per-Share Data(a)                            1999(b)         1998          1997         1996         1995         1994
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>            <C>           <C>          <C>          <C>          <C>
Net Asset Value, Beginning of Period                  $23.25         $18.31        $18.50       $15.88       $11.61       $10.00
Income From Investment Operations
  Net Investment Loss                                  (0.10)         (0.13)        (0.08)       (0.03)       (0.04)       (0.00)(c)
  Net Realized and Unrealized Gains
    on Investments                                      3.73           5.07          3.41         3.13         4.79         1.72
- ------------------------------------------------------------------------------------------------------------------------------------
  Total from Investment Operations                      3.63           4.94          3.33         3.10         4.75         1.72

Less Distributions
  From Net Investment Income                              --             --            --           --           --           --
  In Excess of Net Investment Income                      --             --            --        (0.02)       (0.03)       (0.11)
  From Net Realized Gains                              (0.83)         (0.00)(c)     (2.70)       (0.46)       (0.16)          --
  In Excess of Net Realized Gains                         --             --         (0.82)          --        (0.29)          --
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Distributions                                  (0.83)         (0.00)(c)     (3.52)       (0.48)       (0.48)       (0.11)
- ------------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period                        $26.05         $23.25        $18.31       $18.50       $15.88       $11.61
====================================================================================================================================
Ratios and Supplemental Data
- ------------------------------------------------------------------------------------------------------------------------------------
  Total Return                                        +15.9%         +27.0%        +19.1%       +19.5%       +41.0%       +17.3%
  Net Assets, End of Period (In Millions)             $2,169         $1,835        $1,597       $1,308         $643         $106
  Ratio of Expenses to Average Net Assets               1.3%*          1.3%          1.3%         1.3%         1.4%         1.6%
  Ratio of Net Investment Loss to Average
    Net Assets                                         (0.8%)*        (0.7%)        (0.5%)       (0.2%)       (0.5%)       (0.1%)
  Portfolio Turnover Rate                             145.4%         248.6%        295.7%       294.9%       321.2%       385.8%

</TABLE>


STRONG MID CAP DISCIPLINED FUND
- ----------------------------------------------------------------
                                                    PERIOD ENDED
                                                    ------------
                                                      June 30,
Selected Per-Share Data(a)                             1999(b)
- ----------------------------------------------------------------
Net Asset Value, Beginning of Period                  $10.00
Income From Investment Operations
  Net Investment Loss                                  (0.03)
  Net Realized and Unrealized Gains on Investments      2.91
- ----------------------------------------------------------------
  Total from Investment Operations                      2.88

Less Distributions
  From Net Investment Income                              --
- ----------------------------------------------------------------
  Total Distributions                                     --
- ----------------------------------------------------------------
Net Asset Value, End of Period                        $12.88
================================================================
Ratios and Supplemental Data
- ----------------------------------------------------------------
  Total Return                                        +28.8%
  Net Assets, End of Period (In Millions)                 $7
  Ratio of Expenses to Average Net Assets               2.0%*
  Ratio of Net Investment Loss to Average Net Assets   (0.8%)*
  Portfolio Turnover Rate                              87.7%


  *  Calculated on an annualized basis.
(a)  Information  presented  relates  to a share  of  capital  stock of the Fund
     outstanding for the entire period.
(b)  For the six months ended June 30, 1999 (unaudited).
(c)  Amount calculated is less than $0.01.


                       See Notes to Financial Statements.

38
<PAGE>

<TABLE>

- -------------------------------------------------------------------------------------------
STRONG MID CAP GROWTH FUND
- -------------------------------------------------------------------------------------------
                                                                  PERIOD ENDED
                                                    ---------------------------------------
<CAPTION>
                                                     June 30,       Dec. 31,      Dec. 31,
Selected Per-Share Data(a)                            1999(b)         1998          1997
- -------------------------------------------------------------------------------------------
<S>                                                   <C>            <C>           <C>
Net Asset Value, Beginning of Period                  $13.03         $11.38        $10.00
Income From Investment Operations
  Net Investment Loss                                  (0.07)         (0.12)        (0.09)
  Net Realized and Unrealized Gains on Investments      3.61           1.77          1.47
- -------------------------------------------------------------------------------------------
  Total from Investment Operations                      3.54           1.65          1.38

Less Distributions
  From Net Investment Income                              --             --            --
- -------------------------------------------------------------------------------------------
  Total Distributions                                     --             --            --
- -------------------------------------------------------------------------------------------
Net Asset Value, End of Period                        $16.57         $13.03        $11.38
===========================================================================================
Ratios and Supplemental Data
- -------------------------------------------------------------------------------------------
  Total Return                                        +27.2%         +14.5%        +13.9%
  Net Assets, End of Period (In Millions)                $29            $19           $16
  Ratio of Expenses to Average Net Assets               1.7%*          1.7%          1.6%
  Ratio of Net Investment Loss to Average Net Assets   (1.1%)*        (0.9%)        (0.9%)
  Portfolio Turnover Rate                             432.9%         206.9%        305.2%

</TABLE>

<TABLE>

STRONG OPPORTUNITY FUND
- --------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                     Period Ended
                                                       -------------------------------------------------------------------------
                                                       June 30,     Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31,     Dec. 31,
Selected Per-Share Data(a)                              1999(b)       1998         1997         1996         1995         1994
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                                     <C>          <C>          <C>          <C>          <C>          <C>
Net Asset Value, Beginning of Period                    $38.62       $37.41       $35.26       $33.35       $27.71       $28.23
Income From Investment Operations
  Net Investment Income                                   0.04         0.05         0.10         0.20         0.20         0.13
  Net Realized and Unrealized Gains on Investments        7.07         5.68         7.90         5.78         7.28         0.76
- --------------------------------------------------------------------------------------------------------------------------------
  Total from Investment Operations                        7.11         5.73         8.00         5.98         7.48         0.89

Less Distributions
  From Net Investment Income                              0.00(c)     (0.05)       (0.10)       (0.20)       (0.20)       (0.13)
  In Excess of Net Investment Income                        --           --           --        (0.05)       (0.01)          --
  From Net Realized Gains                                (1.21)       (4.47)       (5.75)       (3.82)       (1.63)       (1.28)
- --------------------------------------------------------------------------------------------------------------------------------
  Total Distributions                                    (1.21)       (4.52)       (5.85)       (4.07)       (1.84)       (1.41)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period                          $44.52       $38.62       $37.41       $35.26       $33.35       $27.71
================================================================================================================================
Ratios and Supplemental Data
- --------------------------------------------------------------------------------------------------------------------------------
  Total Return                                          +18.9%       +15.5%       +23.5%       +18.1%       +27.3%        +3.2%
  Net Assets, End of Period (In Millions)               $2,302       $2,038       $1,925       $1,770       $1,328         $806
  Ratio of Expenses to Average Net Assets                 1.2%*        1.2%         1.2%         1.3%         1.3%         1.4%
  Ratio of Net Investment Income to Average Net Assets    0.2%*        0.2%         0.3%         0.6%         0.7%         0.5%
  Portfolio Turnover Rate                                42.4%        86.0%        93.7%       103.3%        92.5%        59.2%


  *  Calculated on an annualized basis.
(a)  Information  presented  relates  to a share  of  capital  stock of the Fund outstanding for the entire period.
(b)  For the six months ended June 30, 1999 (unaudited).
(c)  Amount calculated is less than $0.01.


                                                   See Notes to Financial Statements.
                                                                                                                             39
</TABLE>
<PAGE>

FINANCIAL HIGHLIGHTS (CONTINUED)
- --------------------------------------------------------------------------------
STRONG STRATEGIC GROWTH FUND
- ----------------------------------------------------------------------------
                                                            Period Ended
                                                      ----------------------
                                                      June 30,      Dec. 31,
Selected Per-Share Data(a)                             1999(b)      1998(c)
- ----------------------------------------------------------------------------
Net Asset Value, Beginning of Period                   $11.25       $10.00
Income From Investment Operations
  Net Investment Loss                                   (0.06)       (0.03)
  Net Realized and Unrealized Gains on Investments       1.56         1.28
- ----------------------------------------------------------------------------
  Total from Investment Operations                       1.50         1.25
Less Distributions
  From Net Investment Income                               --           --
- ----------------------------------------------------------------------------
  Total Distributions                                      --           --
- ----------------------------------------------------------------------------
Net Asset Value, End of Period                         $12.75       $11.25
============================================================================
Ratios and Supplemental Data
- ----------------------------------------------------------------------------
  Total Return                                         +13.3%       +12.5%
  Net Assets, End of Period (In Millions)                  $4           $3
  Ratio of Expenses to Average Net Assets                2.0%*        2.0%*
  Ratio of Net Investment Loss to Average Net Assets    (1.0%)*      (0.5%)*
  Portfolio Turnover Rate                               78.8%        59.7%


  *  Calculated on an annualized basis.
(a)  Information  presented  relates  to a share  of  capital  stock of the Fund
     outstanding for the entire period.
(b)  For the six months ended June 30, 1999 (unaudited).
(c)  For the period from June 30, 1998 (inception) to December 31, 1998.


                       See Notes to Financial Statements.
40
<PAGE>

                                    DIRECTORS
                                Richard S. Strong
                                 Willie D. Davis
                                 Stanley Kritzik
                                Marvin E. Nevins
                                 William F. Vogt

                                    OFFICERS
                    Richard S. Strong, Chairman of the Board
                          Mary F. Hoppa, Vice President
                         John S. Weitzer, Vice President
              Stephen J. Shenkenberg, Vice President and Secretary
                            John W. Widmer, Treasurer

                               INVESTMENT ADVISOR
                         Strong Capital Management, Inc.
                    P.O. Box 2936, Milwaukee, Wisconsin 53201

                                   DISTRIBUTOR
                            Strong Investments, Inc.
                    P.O. Box 2936, Milwaukee, Wisconsin 53201

                                    CUSTODIAN
                          Firstar Bank Milwaukee, N.A.
                    P.O. Box 701, Milwaukee, Wisconsin 53201

                  TRANSFER AGENT AND DIVIDEND-DISBURSING AGENT
                         Strong Capital Management, Inc.
                    P.O. Box 2936, Milwaukee, Wisconsin 53201

                             INDEPENDENT ACCOUNTANTS
                           PricewaterhouseCoopers LLP
              100 East Wisconsin Avenue, Milwaukee, Wisconsin 53202

                                  LEGAL COUNSEL
                              Godfrey & Kahn, S.C.
               780 North Water Street, Milwaukee, Wisconsin 53202
<PAGE>

For a prospectus containing more complete information, including management fees
and  expenses,  please  call  1-800-368-1030.  Please read it  carefully  before
investing or sending  money.  This report does not  constitute  an offer for the
sale of securities. Strong Funds are offered for sale by prospectus only.


                             [PICTURE OF TELEPHONE]
                        To order a free prospectus kit,
                              CALL 1-800-368-1030.

                         To learn more about our funds,
                          discuss an existing account,
                           or conduct a transaction,
                              CALL 1-800-368-3863.

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

                                  If you are a
                            Financial Professional,
                              CALL 1-800-368-1683



                    [PICTURE OF STRONG WEB SITE ON COMPUTER]
                                 Strong On-line
                               www.strongfunds.com




                                  [STRONG LOGO]

                                  STRONG FUNDS
                   P.O. Box 2936 o Milwaukee, Wisconsin 53201
                       Strong Investments, Inc. 12425H99                   SGRO
<PAGE>


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