<PAGE> PAGE 1
000 A000000 06/30/99
000 C000000 723257
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
"001 A000000 STRONG OPPORTUNITY FUND, INC."
001 B000000 811-3793
001 C000000 4145777366
002 A000000 P.O. BOX 2936
002 B000000 MILWAUKEE
002 C000000 WI
002 D010000 53201
002 D020000 2936
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
"008 A000001 STRONG CAPITAL MANAGEMENT, INC."
008 B000001 A
008 C000001 801-10724
008 D010001 MILWAUKEE
008 D020001 WI
008 D030001 53201
008 D040001 2936
"011 A000001 STRONG INVESTMENTS, INC."
011 B000001 8-32608
011 C010001 MILWAUKEE
011 C020001 WI
011 C030001 53201
011 C040001 2936
"012 A000001 STRONG CAPITAL MANAGEMENT, INC."
012 B000001 84-1599
012 C010001 MILWAUKEE
012 C020001 WI
012 C030001 53201
<PAGE> PAGE 2
012 C040001 2936
013 A000001 PRICEWATERHOUSECOOPERS LLP
013 B010001 MILWAUKEE
013 B020001 WI
013 B030001 53202
"014 A000001 STRONG INVESTMENTS, INC."
014 B000001 8-32608
"014 A000002 W.H. REAVES & COMPANY, INC."
014 B000002 8-22142
"015 A000001 FIRSTAR BANK MILWAUKEE, N.A."
015 B000001 C
015 C010001 MILWAUKEE
015 C020001 WI
015 C030001 53202
015 E010001 X
015 A000002 BROWN BROTHERS HARRIMAN & CO.
015 B000002 S
015 C010002 BOSTON
015 C020002 MA
015 C030002 02109
015 E040002 X
018 000000 Y
019 A000000 Y
019 B000000 54
019 C000000 STRONGFUND
"020 A000001 LEHMAN BROTHERS, INC."
020 C000001 235
"020 A000002 GOLDMAN, SACHS & COMPANY"
020 C000002 211
020 A000003 CREDIT SUISSE FIRST BOSTON CORPORATION
020 C000003 178
"020 A000004 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC."
020 C000004 175
"020 A000005 BEAR, STEARNS, & COMPANY, INC."
020 C000005 151
"020 A000006 MORGAN STANLEY, DEAN WITTER & COMPANY"
020 C000006 105
"020 A000007 J.P. MORGAN SECURITIES, INC."
020 C000007 98
"020 A000008 SALOMON SMITH BARNEY, INC."
020 C000008 97
"020 A000009 SANFORD C. BERNSTEIN & COMPANY, INC."
020 C000009 96
"020 A000010 SOUNDVIEW FINANCIAL GROUP, INC."
020 C000010 75
021 000000 2609
022 A000001 ABN AMRO INC.
022 C000001 22682300
022 D000001 0
"022 A000002 BARCLAYS DE ZOETE WEDD, INC."
022 C000002 2598043
<PAGE> PAGE 3
022 D000002 0
"022 A000003 GOLDMAN, SACHS & COMPANY"
022 C000003 1922721
022 D000003 19895
"022 A000004 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC."
022 C000004 16612
022 D000004 11989
"022 A000005 ELAN INVESTMENT SERVICES, INC."
022 C000005 14164
022 D000005 13585
"022 A000006 MORGAN STANLEY, DEAN WITTER & COMPANY"
022 C000006 10745
022 D000006 15652
"022 A000007 SALOMON SMITH BARNEY, INC."
022 C000007 16239
022 D000007 6111
022 A000008 CREDIT SUISSE FIRST BOSTON CORPORATION
022 C000008 9764
022 D000008 7687
"022 A000009 BEAR, STEARNS & COMPANY, INC."
022 C000009 0
022 D000009 6602
"022 A000010 J.P. MORGAN SECURITIES, INC."
022 C000010 2486
022 D000010 2353
023 C000000 27282191
023 D000000 129514
024 000000 N
025 D000001 0
025 D000002 0
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
028 A010000 26382
028 A020000 0
028 A030000 0
028 A040000 64167
028 B010000 19335
<PAGE> PAGE 4
028 B020000 0
028 B030000 0
028 B040000 50891
028 C010000 21522
028 C020000 59194
028 C030000 0
028 C040000 61504
028 D010000 48330
028 D020000 0
028 D030000 0
028 D040000 63538
028 E010000 44880
028 E020000 0
028 E030000 0
028 E040000 34887
028 F010000 51529
028 F020000 0
028 F030000 0
028 F040000 36054
028 G010000 211978
028 G020000 59194
028 G030000 0
028 G040000 311041
028 H000000 0
029 000000 N
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
034 000000 N
035 000000 0
036 B000000 0
037 000000 N
038 000000 0
039 000000 Y
040 000000 N
042 A000000 0
042 B000000 0
042 C000000 0
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 0
044 000000 0
045 000000 Y
046 000000 N
<PAGE> PAGE 5
047 000000 Y
048 000000 1.000
048 A010000 0
048 A020000 0.000
048 B010000 0
048 B020000 0.000
048 C010000 0
048 C020000 0.000
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000
048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 0
048 K020000 0.000
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 N
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 N
055 A000000 N
055 B000000 N
056 000000 Y
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
<PAGE> PAGE 6
060 B000000 Y
061 000000 250
062 A000000 N
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 0
063 B000000 0.0
066 A000000 Y
066 B000000 N
066 C000000 N
066 D000000 Y
066 E000000 N
066 F000000 N
066 G000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 Y
070 B010000 Y
070 B020000 Y
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 Y
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 N
070 I020000 N
<PAGE> PAGE 7
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000 781646
071 B000000 835124
071 C000000 1845119
071 D000000 42
072 A000000 6
072 B000000 5201
072 C000000 9164
072 D000000 0
072 E000000 0
072 F000000 10206
072 G000000 0
072 H000000 0
072 I000000 1564
072 J000000 58
072 K000000 0
072 L000000 301
072 M000000 11
072 N000000 37
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 23
072 S000000 20
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 34
072 X000000 12254
072 Y000000 0
072 Z000000 2111
072AA000000 280702
072BB000000 42842
072CC010000 124692
<PAGE> PAGE 8
072CC020000 0
072DD010000 44
072DD020000 0
072EE000000 60524
073 A010000 0.0009
073 A020000 0.0000
073 B000000 1.2067
073 C000000 0.0000
074 A000000 0
074 B000000 272000
074 C000000 6745
074 D000000 0
074 E000000 0
074 F000000 2019645
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 8659
074 K000000 0
074 L000000 2160
074 M000000 90
074 N000000 2309299
074 O000000 6695
074 P000000 94
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 358
074 S000000 0
074 T000000 2302152
074 U010000 51711
074 U020000 0
074 V010000 44.52
074 V020000 0.00
074 W000000 0.0000
074 X000000 91825
074 Y000000 4197
075 A000000 0
075 B000000 2095858
076 000000 0.00
077 A000000 N
078 000000 N
080 C000000 0
081 B000000 0
082 B000000 0
083 B000000 0
084 B000000 0
086 A010000 0
086 A020000 0
086 B010000 0
<PAGE> PAGE 9
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
SIGNATURE JOHN WIDMER
TITLE TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000723257
<NAME> "Strong Opportunity Fund, Inc."
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-mos
<FISCAL-YEAR-END> Dec-31-1999
<PERIOD-START> Jan-01-1999
<PERIOD-END> Jun-30-1999
<INVESTMENTS-AT-COST> 1731153
<INVESTMENTS-AT-VALUE> 2298390
<RECEIVABLES> 10819
<ASSETS-OTHER> 90
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2309299
<PAYABLE-FOR-SECURITIES> 6695
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 452
<TOTAL-LIABILITIES> 7147
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1505124
<SHARES-COMMON-STOCK> 51711
<SHARES-COMMON-PRIOR> 52772
<ACCUMULATED-NII-CURRENT> 2111
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 226907
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 568010
<NET-ASSETS> 2302152
<DIVIDEND-INCOME> 9164
<INTEREST-INCOME> 5201
<OTHER-INCOME> 0
<EXPENSES-NET> 12254
<NET-INVESTMENT-INCOME> 2111
<REALIZED-GAINS-CURRENT> 237860
<APPREC-INCREASE-CURRENT> 124692
<NET-CHANGE-FROM-OPS> 364663
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (44)
<DISTRIBUTIONS-OF-GAINS> (60524)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5124
<NUMBER-OF-SHARES-REDEEMED> (7726)
<SHARES-REINVESTED> 1542
<NET-CHANGE-IN-ASSETS> 264225
<ACCUMULATED-NII-PRIOR> 44
<ACCUMULATED-GAINS-PRIOR> 49570
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 10206
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12254
<AVERAGE-NET-ASSETS> 2093857
<PER-SHARE-NAV-BEGIN> 38.62
<PER-SHARE-NII> 0.04
<PER-SHARE-GAIN-APPREC> 7.07
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.21)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 44.52
<EXPENSE-RATIO> 1.2
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
