<PAGE> PAGE 1
000 A000000 11/30/99
000 C000000 943180
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 THE SERIES PORTFOLIO
001 B000000 811-9008
001 C000000 8099451824
002 A000000 ELIZABETHAN SQUARE,2ND FLR SHEDDEN RD
002 B000000 GEORGETOWN
002 E010000 GRAND CAYMAN
003 000000 Y
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 5
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C020700 THE U.S. SMALL COMPANY OPPS. PORTFOLIO
007 C030700 N
007 C010800 8
007 C010900 9
007 C011000 10
007 C011100 11
007 C011200 12
007 C011300 13
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
007 C012100 21
007 C012200 22
007 C012300 23
007 C012400 24
007 C012500 25
007 C012600 26
007 C012700 27
007 C012800 28
<PAGE> PAGE 2
007 C012900 29
007 C013000 30
007 C013100 31
007 C013200 32
007 C013300 33
007 C013400 34
007 C013500 35
007 C013600 36
007 C013700 37
007 C013800 38
007 C013900 39
007 C014000 40
007 C014100 41
007 C014200 42
007 C014300 43
007 C014400 44
007 C014500 45
007 C014600 46
007 C014700 47
007 C014800 48
007 C014900 49
007 C015000 50
007 C015100 51
007 C015200 52
007 C015300 53
007 C015400 54
007 C015500 55
007 C015600 56
007 C015700 57
007 C015800 58
007 C015900 59
007 C016000 60
007 C016100 61
007 C016200 62
007 C016300 63
007 C016400 64
007 C016500 65
007 C016600 66
007 C016700 67
007 C016800 68
007 C016900 69
007 C017000 70
007 C017100 71
007 C017200 72
007 C017300 73
007 C017400 74
007 C017500 75
007 C017600 76
007 C017700 77
007 C017800 78
007 C017900 79
<PAGE> PAGE 3
007 C018000 80
007 C018100 81
007 C018200 82
007 C018300 83
007 C018400 84
007 C018500 85
007 C018600 86
007 C018700 87
007 C018800 88
007 C018900 89
007 C019000 90
020 A000001 WEEDEN & CO.
020 C000001 19
020 A000002 LEHMAN BROS INC.
020 C000002 17
020 A000003 PAINE WEBBER
020 C000003 12
020 A000004 LAZARD FRERES & CO.
020 C000004 10
020 A000005 CS FIRST BOSTON
020 C000005 10
020 A000006 KNIGHT SECURITIES
020 C000006 9
020 A000007 DONALDSON LUFKIN JANRET
020 C000007 8
020 A000008 INSTINET
020 C000008 8
020 A000009 CANADIAN IMPERIAL BANK
020 C000009 7
020 A000010 JACKSON PARTNERS & ASSOC
020 C000010 7
021 000000 184
022 A000001 MORGAN GUARANTY TRUST
022 C000001 51224
022 D000001 53454
022 A000002 SPEAR, LEADS
022 C000002 17707
022 D000002 7071
022 A000003 GOLDMAN SACHS
022 C000003 11378
022 D000003 13029
022 A000004 CS FIRST BOSTON
022 C000004 12102
022 D000004 11861
022 A000005 MERRILL LYNCH
022 C000005 12168
022 D000005 11608
022 A000006 SALOMON SMITH BARNEY
022 C000006 9811
022 D000006 13387
022 A000007 HSBC
<PAGE> PAGE 4
022 C000007 3520
022 D000007 14247
022 A000008 DONALDSON LUFKIN JANRET
022 C000008 12957
022 D000008 3930
022 A000009 MORGAN STANLEY
022 C000009 9458
022 D000009 7313
022 A000010 BANCBOSTON
022 C000010 8543
022 D000010 7717
023 C000000 359723
023 D000000 334601
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
077 A000000 Y
077 Q010000 Y
077 Q020000 N
077 Q030000 N
078 000000 N
086 A010000 0
086 A020000 0
086 B010000 0
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
008 A000701 J.P. MORGAN INVESTMENT MANAGEMENT INC.
008 B000701 A
008 C000701 801-999999
008 D010701 NEW YORK
008 D020701 NY
008 D030701 10036
010 A000701 MORGAN GUARANTY TRUST COMPANY OF NEW YORK
010 B000701 8-49999999
010 C010701 NEW YORK
010 C020701 NY
010 C030701 10036
<PAGE> PAGE 5
010 A000702 FUNDS DISTRIBUTORS, INC.
010 B000702 8-420518
010 C010702 BOSTON
010 C020702 MA
010 C030702 02109
010 A000703 PIERPONT GROUP, INC.
010 C010703 NEW YORK
010 C020703 NY
010 C030703 10017
011 A000701 FUND DISTRIBUTER INC.
011 B000701 8-420578
011 C010701 BOSTON
011 C020701 MA
011 C030701 02109
012 A000701 STATE STREET BANK AND TRUST COMPANY
012 B000701 85-50003
012 C010701 BOSTON
012 C020701 MA
012 C030701 02101
013 A000701 PRICEWATERHOUSECOOPERS LLP.
013 B010701 NEW YORK
013 B020701 NY
013 B030701 10036
014 A000701 JP MORGAN SECURITIES, INC.
014 B000701 8-99999
014 A000702 JPM SECURITIES LTD.
014 B000702 8-99999
014 A000703 BOSTON INSTITUTIONAL SERVICES, INC.
014 B000703 8-99999999
014 A000704 FUNDS DISTRIBUTION, INC.
014 B000704 8-99999
015 A000701 THE BANK OF NEW YORK
015 B000701 C
015 C010701 NEW YORK
015 C020701 NY
015 C030701 10007
015 E010701 X
018 000700 Y
019 A000700 Y
019 B000700 69
019 C000700 J.P.MORGAN
024 000700 N
028 A010700 15363
028 A020700 0
028 A030700 0
028 A040700 5971
028 B010700 20334
028 B020700 0
028 B030700 0
028 B040700 12132
028 C010700 10101
<PAGE> PAGE 6
028 C020700 0
028 C030700 0
028 C040700 5872
028 D010700 13573
028 D020700 0
028 D030700 0
028 D040700 12573
028 E010700 29272
028 E020700 0
028 E030700 0
028 E040700 8014
028 F010700 30486
028 F020700 0
028 F030700 0
028 F040700 25199
028 G010700 119129
028 G020700 0
028 G030700 0
028 G040700 69761
028 H000700 0
029 000700 N
030 A000700 0
030 B000700 0.00
030 C000700 0.00
031 A000700 0
031 B000700 0
032 000700 0
033 000700 0
034 000700 N
035 000700 0
036 B000700 0
037 000700 N
038 000700 0
039 000700 N
040 000700 N
041 000700 N
042 A000700 0
042 B000700 0
042 C000700 0
042 D000700 0
042 E000700 0
042 F000700 0
042 G000700 0
042 H000700 0
043 000700 0
044 000700 0
045 000700 Y
046 000700 N
047 000700 Y
048 000700 0.600
048 A010700 0
<PAGE> PAGE 7
048 A020700 0.000
048 B010700 0
048 B020700 0.000
048 C010700 0
048 C020700 0.000
048 D010700 0
048 D020700 0.000
048 E010700 0
048 E020700 0.000
048 F010700 0
048 F020700 0.000
048 G010700 0
048 G020700 0.000
048 H010700 0
048 H020700 0.000
048 I010700 0
048 I020700 0.000
048 J010700 0
048 J020700 0.000
048 K010700 0
048 K020700 0.000
049 000700 N
050 000700 N
051 000700 N
052 000700 N
053 A000700 Y
053 B000700 Y
053 C000700 N
054 A000700 Y
054 B000700 N
054 C000700 N
054 D000700 N
054 E000700 N
054 F000700 N
054 G000700 N
054 H000700 N
054 I000700 N
054 J000700 Y
054 K000700 N
054 L000700 N
054 M000700 Y
054 N000700 N
054 O000700 N
055 A000700 N
055 B000700 N
056 000700 Y
057 000700 N
058 A000700 N
059 000700 Y
060 A000700 Y
060 B000700 Y
<PAGE> PAGE 8
061 000700 0
062 A000700 N
062 B000700 0.0
062 C000700 0.0
062 D000700 0.0
062 E000700 0.0
062 F000700 0.0
062 G000700 0.0
062 H000700 0.0
062 I000700 0.0
062 J000700 0.0
062 K000700 0.0
062 L000700 0.0
062 M000700 0.0
062 N000700 0.0
062 O000700 0.0
062 P000700 0.0
062 Q000700 0.0
062 R000700 0.0
063 A000700 0
063 B000700 0.0
066 A000700 Y
066 C000700 Y
067 000700 N
068 A000700 N
068 B000700 N
069 000700 N
070 A010700 Y
070 A020700 N
070 B010700 Y
070 B020700 N
070 C010700 N
070 C020700 N
070 D010700 Y
070 D020700 N
070 E010700 N
070 E020700 N
070 F010700 Y
070 F020700 N
070 G010700 Y
070 G020700 N
070 H010700 Y
070 H020700 N
070 I010700 N
070 I020700 N
070 J010700 Y
070 J020700 Y
070 K010700 Y
070 K020700 Y
070 L010700 Y
070 L020700 Y
<PAGE> PAGE 9
070 M010700 Y
070 M020700 N
070 N010700 Y
070 N020700 N
070 O010700 Y
070 O020700 N
070 P010700 N
070 P020700 N
070 Q010700 N
070 Q020700 N
070 R010700 N
070 R020700 N
071 A000700 271680
071 B000700 216159
071 C000700 332072
071 D000700 65
072 A000700 6
072 B000700 458
072 C000700 630
072 D000700 0
072 E000700 0
072 F000700 1042
072 G000700 49
072 H000700 0
072 I000700 0
072 J000700 70
072 K000700 0
072 L000700 3
072 M000700 1
072 N000700 0
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 20
072 S000700 1
072 T000700 0
072 U000700 1
072 V000700 0
072 W000700 0
072 X000700 1187
072 Y000700 0
072 Z000700 -99
072AA000700 9066
072BB000700 0
072CC010700 0
072CC020700 101947
072DD010700 0
072DD020700 0
072EE000700 0
073 A010700 0.0000
073 A020700 0.0000
<PAGE> PAGE 10
073 B000700 0.0000
073 C000700 0.0000
074 A000700 0
074 B000700 0
074 C000700 0
074 D000700 0
074 E000700 194
074 F000700 437858
074 G000700 0
074 H000700 0
074 I000700 6622
074 J000700 3223
074 K000700 2
074 L000700 222
074 M000700 4
074 N000700 448125
074 O000700 1945
074 P000700 220
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 877
074 S000700 0
074 T000700 445083
074 U010700 0
074 U020700 0
074 V010700 0.00
074 V020700 0.00
074 W000700 0.0000
074 X000700 1
074 Y000700 0
075 A000700 0
075 B000700 347568
076 000700 0.00
080 C000700 0
081 B000700 0
082 B000700 0
083 A000700 N
083 B000700 0
084 A000700 N
084 B000700 0
085 A000700 N
085 B000700 N
SIGNATURE RICHARD INGRAM
TITLE ASST.TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial data extracted from the semi - annual
report dated November 30, 1999 for The U.S. Small Company Opportunities
Portfolio and is qualified in its entirety by reference to such semi - annual
report.
</LEGEND>
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAY-31-2000
<PERIOD-END> NOV-30-1999
<INVESTMENTS-AT-COST> 319621
<INVESTMENTS-AT-VALUE> 444674
<RECEIVABLES> 3446
<ASSETS-OTHER> 5
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 448125
<PAYABLE-FOR-SECURITIES> 1945
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1097
<TOTAL-LIABILITIES> 3042
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 445083
<DIVIDEND-INCOME> 630
<INTEREST-INCOME> 458
<OTHER-INCOME> 0
<EXPENSES-NET> 1187
<NET-INVESTMENT-INCOME> (99)
<REALIZED-GAINS-CURRENT> 9066
<APPREC-INCREASE-CURRENT> 101947
<NET-CHANGE-FROM-OPS> 110914
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 160282
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1046
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1187
<AVERAGE-NET-ASSETS> 347568
<PER-SHARE-NAV-BEGIN> 0
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 0
<EXPENSE-RATIO> 0.68
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
