SELIGMAN PORTFOLIOS INC/NY
NSAR-A, 1997-08-29
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<PAGE>      PAGE  1
000 A000000 06/30/97
000 C000000 817841
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 SELIGMAN PORTFOLIOS, INC.
001 B000000 811-5221
001 C000000 2128501864
002 A000000 100 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10017
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000 12
007 C010100  1
007 C020100 SELIGMAN CAPITAL PORTFOLIO
007 C030100 N
007 C010200  2
007 C020200 SELIGMAN CASH MANAGEMENT PORTFOLIO
007 C030200 N
007 C010300  3
007 C020300 SELIGMAN COMMON STOCK PORTFOLIO
007 C030300 N
007 C010400  4
007 C020400 SELIGMAN BOND PORTFOLIO
007 C030400 N
007 C010500  5
007 C020500 SELIGMAN INCOME PORTFOLIO
007 C030500 N
007 C010600  6
007 C020600 SELIGMAN HENDERSON INTERNATIONAL
007 C030600 N
007 C010700  7
007 C020700 SELIGMAN COMMUNICATIONS AND INFORMATION PORT
007 C030700 N
007 C010800  8
007 C020800 SELIGMAN FRONTIER PORTFOLIO
007 C030800 N
007 C010900  9
007 C020900 SELIGMAN HENDERSON GLOBAL SMALLER COS. PORT
007 C030900 N
007 C011000 10
007 C021000 SELIGMAN HIGH-YIELD BOND PORTFOLIO
<PAGE>      PAGE  2
007 C031000 N
007 C011100 11
007 C021100 SELIGMAN HENDERSON GLOBAL GROWTH OPP PORT
007 C031100 N
007 C011200 12
007 C021200 SELIGMAN HENDERSON GLOBAL TECHNOLOGY PORT
007 C031200 N
007 C011300 13
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
013 A00AA01 ERNST & YOUNG LLP
013 B01AA01 NEW YORK
013 B02AA01 NY
013 B03AA01 10019
014 A00AA01 SELIGMAN SERVICES, INC.
014 B00AA01 8-47717
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   50
019 C00AA00 JWSELIGMAN
020 A000001 INSTINET CORPORATION
020 B000001 13-3443395
020 C000001     41
020 A000002 MERRILL LYNCH, PIERCE, FENNER & SMITH
020 B000002 13-5674085
020 C000002     14
020 A000003 CREDIT SUISSE FIRST BOSTON CORP.
020 B000003 13-5659485
020 C000003     11
020 A000004 LAZARD FRERES & CO.
020 B000004 13-5545100
020 C000004      9
020 A000005 LEHMAN BROTHERS INC.
020 B000005 13-2518466
020 C000005      7
020 A000006 DONALDSON, LUFKIN, & JENRETTE SECURITIES CORP
020 B000006 13-2741729
020 C000006      7
020 A000007 THE CHICAGO CORPORATION
020 B000007 36-2549961
020 C000007      7
020 A000008 IBES INTERNATIONAL
020 B000008 13-3624400
020 C000008      7
020 A000009 SALOMON BROTHERS
020 B000009 13-3082694
<PAGE>      PAGE  3
020 C000009      6
020 A000010 MESIROW FINANCIAL INC.
020 B000010 36-3194849
020 C000010      6
021  000000      243
022 A000001 HSBC SECURITIES INC.
022 B000001 13-2650272
022 C000001    586744
022 D000001       213
022 A000002 CANADIAN IMPERIAL BK OF COMMERCE-GRAND CAYMAN
022 B000002 13-1942440
022 C000002     66593
022 D000002        50
022 A000003 NATWEST SECURITIES CORP.
022 B000003 13-3312778
022 C000003     48435
022 D000003        12
022 A000004 REPUBLIC NEW YORK SECURITIES CORP.
022 B000004 55-1262324
022 C000004     22703
022 D000004         0
022 A000005 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000005 13-5674085
022 C000005      9943
022 D000005      8404
022 A000006 MORGAN STANLEY & CO., INC.
022 B000006 13-2655998
022 C000006      8859
022 D000006      8728
022 A000007 GOLDMAN SACHS & CO.
022 B000007 13-5108880
022 C000007      6628
022 D000007      6692
022 A000008 FIRST CHICAGO CAPITAL MARKETS, INC.
022 B000008 36-3595942
022 C000008     10593
022 D000008         0
022 A000009 SMITH BARNEY INC.
022 B000009 13-1912900
022 C000009      4812
022 D000009      4502
022 A000010 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000010 13-2741729
022 C000010      6976
022 D000010      2309
023 C000000     850179
023 D000000      89073
024  00AA00 N
026 A000000 Y
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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015 A000101 INVESTORS FIDUCIARY TRUST COMPANY
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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008 A000201 J. & W. SELIGMAN & CO. INCORPORATED
008 B000201 A
008 C000201 801-15798
008 D010201 NEW YORK
008 D020201 NY
008 D030201 10017
015 A000201 INVESTORS FIDUCIARY TRUST COMPANY
015 B000201 C
015 C010201 KANSAS CITY
015 C020201 MO
015 C030201 64105
015 C040201 1716
<PAGE>      PAGE  10
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
008 A000301 J. & W. SELIGMAN &  CO. INCORPORATED
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008 C000301 801-15798
008 D010301 NEW YORK
008 D020301 NY
008 D030301 10017
015 A000301 INVESTORS FIDUCIARY TRUST COMPANY
015 B000301 C
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015 C030301 64105
015 C040301 1716
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015 A000302 CHASE MANHATTAN BANK
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
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008 A000401 J. & W. SELIGMAN & CO. INCORPORATED
008 B000401 A
008 C000401 801-15798
008 D010401 NEW YORK
008 D020401 NY
008 D030401 10017
015 A000401 INVESTORS FIDUCIARY TRUST COMPANY
015 A000401 C
015 B000401 KANSAS CITY
015 B000401 MO
015 C010401 64105
015 C010401 1716
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<PAGE>      PAGE  19
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<PAGE>      PAGE  20
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<PAGE>      PAGE  21
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<PAGE>      PAGE  23
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<PAGE>      PAGE  25
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<PAGE>      PAGE  27
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<PAGE>      PAGE  31
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015 A000701 INVESTORS FIDUCIARY TRUST COMPANY
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<PAGE>      PAGE  34
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015 A000801 INVESTORS FIDUCIARY TRUST COMPANY
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<PAGE>      PAGE  38
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<PAGE>      PAGE  39
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008 A000901 J. & W. SELIGMAN & CO. INCORPORATED
008 B000901 A
<PAGE>      PAGE  40
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<PAGE>      PAGE  41
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<PAGE>      PAGE  42
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<PAGE>      PAGE  43
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<PAGE>      PAGE  44
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008 D011001 NEW YORK
008 D021001 NY
008 D031001 10017
015 A001001 INVESTORS FIDUCIARY TRUST COMPANY
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015 C031001 64105
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<PAGE>      PAGE  45
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<PAGE>      PAGE  46
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<PAGE>      PAGE  47
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<PAGE>      PAGE  48
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008 A001102 SELIGMAN HENDERSON CO.
008 B001102 S
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008 D031102 10017
015 A001101 MORGAN STANLEY TRUST COMPANY
015 B001101 C
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015 C031101 11201
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<PAGE>      PAGE  49
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<PAGE>      PAGE  50
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<PAGE>      PAGE  51
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<PAGE>      PAGE  52
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008 A001201 J. & W. SELIGMAN & CO. INCORPORATED
<PAGE>      PAGE  53
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015 A001201 MORGAN STANLEY TRUST COMPANY
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<PAGE>      PAGE  54
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<PAGE>      PAGE  55
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<PAGE>      PAGE  56
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SIGNATURE   THOMAS ROSE                                  
TITLE       TREASURER           
 

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

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<SERIES>
   <NUMBER> 01
   <NAME> SELIGMAN CAPITAL PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 02
   <NAME> SELIGMAN CASH MANAGEMENT PORTFOLIO   
<MULTIPLIER> 1000
       
<S>                             <C>
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<PERIOD-END>                               JUN-30-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 03
   <NAME> SELIGMAN COMMON STOCK PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 04
   <NAME> SELIGMAN BOND PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
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<PERIOD-END>                               JUN-30-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 05
   <NAME> SELIGMAN INCOME PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
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<EXPENSE-RATIO>                                    .60
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<AVG-DEBT-PER-SHARE>                                 0
        
















</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 06
   <NAME> SELIGMAN HENDERSON INTERNATIONAL PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 07
   <NAME> SELIGMAN COMMUNICATIONS AND INFORMATION PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 08
   <NAME> SELIGMAN FRONTIER PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
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<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.46
<EXPENSE-RATIO>                                    .88
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

















</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 09
   <NAME> SELIGMAN HENDERSON GLOBAL SMALLER COMPANIES PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                            19971
<INVESTMENTS-AT-VALUE>                           21847
<RECEIVABLES>                                      134
<ASSETS-OTHER>                                     185
<OTHER-ITEMS-ASSETS>                                 8
<TOTAL-ASSETS>                                   22174
<PAYABLE-FOR-SECURITIES>                           179
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           35
<TOTAL-LIABILITIES>                                214
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         19789
<SHARES-COMMON-STOCK>                             1557
<SHARES-COMMON-PRIOR>                             1312
<ACCUMULATED-NII-CURRENT>                           25
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            262
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          1884
<NET-ASSETS>                                     21960
<DIVIDEND-INCOME>                                  131
<INTEREST-INCOME>                                   32
<OTHER-INCOME>                                     (7)
<EXPENSES-NET>                                   (131)
<NET-INVESTMENT-INCOME>                             25
<REALIZED-GAINS-CURRENT>                           230
<APPREC-INCREASE-CURRENT>                         1656
<NET-CHANGE-FROM-OPS>                             1911
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            299
<NUMBER-OF-SHARES-REDEEMED>                       (54)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                            5084
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                           32
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               94
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    148
<AVERAGE-NET-ASSETS>                             18959
<PER-SHARE-NAV-BEGIN>                            12.87
<PER-SHARE-NII>                                   .017
<PER-SHARE-GAIN-APPREC>                          1.223
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0 
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.11
<EXPENSE-RATIO>                                   1.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        




















</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 10
   <NAME> SELIGMAN HIGH-YIELD BOND PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                            15742
<INVESTMENTS-AT-VALUE>                           16189
<RECEIVABLES>                                      456
<ASSETS-OTHER>                                      58
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   16703
<PAYABLE-FOR-SECURITIES>                           174
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           19
<TOTAL-LIABILITIES>                                193
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         15491
<SHARES-COMMON-STOCK>                             1394
<SHARES-COMMON-PRIOR>                              999
<ACCUMULATED-NII-CURRENT>                          645
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           (73)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           447
<NET-ASSETS>                                     16510
<DIVIDEND-INCOME>                                   14
<INTEREST-INCOME>                                  678        
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (46)
<NET-INVESTMENT-INCOME>                            646 
<REALIZED-GAINS-CURRENT>                          (73)
<APPREC-INCREASE-CURRENT>                          182
<NET-CHANGE-FROM-OPS>                              755
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0     
<NUMBER-OF-SHARES-SOLD>                            659
<NUMBER-OF-SHARES-REDEEMED>                      (264)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                            5333
<ACCUMULATED-NII-PRIOR>                            (1)
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               33
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     57
<AVERAGE-NET-ASSETS>                             13542          
<PER-SHARE-NAV-BEGIN>                            11.19
<PER-SHARE-NII>                                   .545
<PER-SHARE-GAIN-APPREC>                           .105
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.84
<EXPENSE-RATIO>                                    .70
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

        






















</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 11
   <NAME> SELIGMAN HENDERSON GLOBAL GROWTH OPP PORT
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                             3486
<INVESTMENTS-AT-VALUE>                            3916
<RECEIVABLES>                                       30
<ASSETS-OTHER>                                     389
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                    4335
<PAYABLE-FOR-SECURITIES>                           166
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           10
<TOTAL-LIABILITIES>                                176
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                          3737
<SHARES-COMMON-STOCK>                              369
<SHARES-COMMON-PRIOR>                              160
<ACCUMULATED-NII-CURRENT>                            7
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           (15)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           430  
<NET-ASSETS>                                      4159
<DIVIDEND-INCOME>                                   17
<INTEREST-INCOME>                                   10        
<OTHER-INCOME>                                     (1)
<EXPENSES-NET>                                    (19)
<NET-INVESTMENT-INCOME>                              7
<REALIZED-GAINS-CURRENT>                           (5)
<APPREC-INCREASE-CURRENT>                          407
<NET-CHANGE-FROM-OPS>                              409
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0     
<NUMBER-OF-SHARES-SOLD>                            261
<NUMBER-OF-SHARES-REDEEMED>                       (52)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                            2570
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                         (10)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               13
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     35
<AVERAGE-NET-ASSETS>                              2733          
<PER-SHARE-NAV-BEGIN>                             9.91
<PER-SHARE-NII>                                   .028
<PER-SHARE-GAIN-APPREC>                          1.322
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.26
<EXPENSE-RATIO>                                   1.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

        






















</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 12
   <NAME> SELIGMAN HENDERSON GLOBAL TECHNOLOGY PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                             2067
<INVESTMENTS-AT-VALUE>                            2361
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<OTHER-ITEMS-ASSETS>                                 0
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<PAYABLE-FOR-SECURITIES>                             9
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           11
<TOTAL-LIABILITIES>                                 20
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                          2323
<SHARES-COMMON-STOCK>                              227
<SHARES-COMMON-PRIOR>                              132
<ACCUMULATED-NII-CURRENT>                          (3)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           (67)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           294  
<NET-ASSETS>                                      2547
<DIVIDEND-INCOME>                                    6
<INTEREST-INCOME>                                    5       
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (13)
<NET-INVESTMENT-INCOME>                            (2)
<REALIZED-GAINS-CURRENT>                          (67)
<APPREC-INCREASE-CURRENT>                          225
<NET-CHANGE-FROM-OPS>                              156
<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0     
<NUMBER-OF-SHARES-SOLD>                            156
<NUMBER-OF-SHARES-REDEEMED>                       (61)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                            1183
<ACCUMULATED-NII-PRIOR>                            (1)
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               10
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     23
<AVERAGE-NET-ASSETS>                              1911          
<PER-SHARE-NAV-BEGIN>                            10.32
<PER-SHARE-NII>                                 (.014)
<PER-SHARE-GAIN-APPREC>                           .934
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.24
<EXPENSE-RATIO>                                   1.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

        






















</TABLE>


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