<PAGE> PAGE 1
000 A000000 06/30/1999
000 C000000 0001034106
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 FEDERATED CORE TRUST
001 B000000 811-008519
001 C000000 4122886653
002 A000000 FEDERATED INVESTORS TOWERS
002 B000000 PITTSBURGH
002 C000000 PA
002 D010000 15222
002 D020000 3779
003 000000 Y
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 2
007 C010100 1
007 C020100 HIGH YIELD BOND PORTFOLIO
007 C030100 N
007 C010200 2
007 C020200 FEDERATED MORTGAGE CORE PORTFOLIO
007 C030200 N
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 A00AA01 FEDERATED ADVISORS
008 B00AA01 A
008 C00AA01 801-34612
008 D01AA01 PITTSBURGH
008 D02AA01 PA
008 D03AA01 15222
008 D04AA01 3779
010 A00AA01 FEDERATED SERVICES COMPANY
010 C01AA01 PITTSBURGH
010 C02AA01 PA
010 C03AA01 15222
010 C04AA01 3779
011 A00AA01 FEDERATED SECURITES CORP.
011 B00AA01 8-15561
<PAGE> PAGE 2
011 C01AA01 PITTBURGH
011 C02AA01 PA
011 C03AA01 15222
011 C04AA01 3779
012 A00AA01 FEDERATED SHAREHOLDERS SERVICES COMPANY
012 B00AA01 84-1869
012 C01AA01 PITTSBURGH
012 C02AA01 PA
012 C03AA01 15222
012 C04AA01 3779
013 A00AA01 ERNST & YOUNG LLP
013 B01AA01 PITTSBURGH
013 B02AA01 PA
013 B03AA01 15222
013 B04AA01 3779
015 A00AA01 STATE STREET BANK & TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02266
015 C04AA01 8600
015 E01AA01 X
018 00AA00 Y
019 A00AA00 N
019 B00AA00 0
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 ABN AMRO CHICAGO CORPORATION
022 C000001 1890355
022 D000001 0
022 A000002 BEAR STREANS
022 C000002 607426
022 D000002 33993
022 A000003 SOCIETE GENERALE
022 C000003 279720
022 D000003 1988
022 A000004 MORGAN GUARANTY TRUST
022 C000004 156692
022 D000004 5138
022 A000005 SALOMON SMITH BARNEY
022 C000005 130130
022 D000005 29098
<PAGE> PAGE 3
022 A000006 LEHMAN BROTHERS
022 C000006 60265
022 D000006 63024
022 A000007 GOLDMAN SACHS
022 C000007 110087
022 D000007 8436
022 A000008 DLJ CAPITAL MARKETS
022 C000008 49585
022 D000008 42722
022 A000009 MORGAN STANLEY
022 C000009 30039
022 D000009 13927
022 A000010 FEDERAL HOME LOAN MORTGAGE CORP
022 C000010 17779
022 D000010 24765
023 C000000 3865387
023 D000000 396929
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 N
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 Y
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 Y
077 B000000 N
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
<PAGE> PAGE 4
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 N
078 000000 N
080 C00AA00 0
081 B00AA00 0
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 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
028 A010100 39300
028 A020100 0
028 A030100 0
028 A040100 13081
028 B010100 21000
028 B020100 4552
028 B030100 0
028 B040100 6000
028 C010100 22750
028 C020100 4874
028 C030100 0
028 C040100 5500
028 D010100 16250
028 D020100 5055
028 D030100 0
028 D040100 0
028 E010100 8000
028 E020100 5310
028 E030100 0
028 E040100 0
<PAGE> PAGE 5
028 F010100 24000
028 F020100 5395
028 F030100 0
028 F040100 17000
028 G010100 131300
028 G020100 25186
028 G030100 0
028 G040100 41581
028 H000100 0
029 000100 N
030 A000100 0
030 B000100 0.00
030 C000100 0.00
031 A000100 0
031 B000100 0
032 000100 0
033 000100 0
034 000100 N
035 000100 0
036 B000100 0
037 000100 N
038 000100 0
039 000100 N
040 000100 N
041 000100 N
042 A000100 0
042 B000100 0
042 C000100 0
042 D000100 0
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 0
044 000100 0
045 000100 N
048 000100 0.000
048 A010100 0
048 A020100 0.000
048 B010100 0
048 B020100 0.000
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
<PAGE> PAGE 6
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 0
048 K020100 0.000
055 A000100 N
055 B000100 N
056 000100 N
057 000100 N
058 A000100 N
059 000100 Y
060 A000100 Y
060 B000100 Y
061 000100 0
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 1.1
062 E000100 0.0
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 95.7
062 Q000100 3.0
062 R000100 0.0
063 A000100 0
063 B000100 7.3
070 A010100 Y
070 A020100 Y
070 B010100 Y
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
<PAGE> PAGE 7
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 N
070 K020100 N
070 L010100 Y
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 N
070 N020100 N
070 O010100 N
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 296108
071 B000100 149466
071 C000100 602260
071 D000100 25
072 A000100 6
072 B000100 29754
072 C000100 1055
072 D000100 0
072 E000100 0
072 F000100 0
072 G000100 0
072 H000100 0
072 I000100 8
072 J000100 8
072 K000100 0
072 L000100 0
072 M000100 2
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 49
072 R000100 16
072 S000100 0
072 T000100 0
072 U000100 0
072 V000100 0
072 W000100 2
072 X000100 85
072 Y000100 0
<PAGE> PAGE 8
072 Z000100 30724
072AA000100 0
072BB000100 1116
072CC010100 0
072CC020100 11510
072DD010100 30724
072DD020100 0
072EE000100 0
073 A010100 0.4600
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 2
074 B000100 7050
074 C000100 0
074 D000100 635222
074 E000100 19814
074 F000100 102
074 G000100 0
074 H000100 0
074 I000100 231
074 J000100 0
074 K000100 0
074 L000100 12010
074 M000100 0
074 N000100 674431
074 O000100 4782
074 P000100 0
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 5563
074 S000100 0
074 T000100 664086
074 U010100 72629
074 U020100 0
074 V010100 9.14
074 V020100 0.00
074 W000100 0.0000
074 X000100 19
074 Y000100 0
075 A000100 632051
075 B000100 0
076 000100 0.00
028 A010200 0
028 A020200 0
028 A030200 0
028 A040200 0
028 B010200 272945
028 B020200 0
<PAGE> PAGE 9
028 B030200 0
028 B040200 1000
028 C010200 14000
028 C020200 356
028 C030200 0
028 C040200 39000
028 D010200 10600
028 D020200 1397
028 D030200 0
028 D040200 15600
028 E010200 5000
028 E020200 1324
028 E030200 0
028 E040200 18081
028 F010200 3915
028 F020200 1289
028 F030200 0
028 F040200 3500
028 G010200 306460
028 G020200 4366
028 G030200 0
028 G040200 77181
028 H000200 0
029 000200 N
030 A000200 0
030 B000200 0.00
030 C000200 0.00
031 A000200 0
031 B000200 0
032 000200 0
033 000200 0
034 000200 N
035 000200 0
036 B000200 0
037 000200 N
038 000200 0
039 000200 N
040 000200 N
041 000200 N
042 A000200 0
042 B000200 0
042 C000200 0
042 D000200 0
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 0
044 000200 0
045 000200 N
048 000200 0.000
<PAGE> PAGE 10
048 A010200 0
048 A020200 0.000
048 B010200 0
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
048 K010200 0
048 K020200 0.000
055 A000200 N
055 B000200 N
056 000200 N
057 000200 N
058 A000200 N
059 000200 Y
060 A000200 Y
060 B000200 Y
061 000200 0
062 A000200 N
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 0.0
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 0.0
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
070 A010200 Y
070 A020200 Y
<PAGE> PAGE 11
070 B010200 N
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
070 E020200 N
070 F010200 N
070 F020200 N
070 G010200 N
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 N
070 J020200 N
070 K010200 N
070 K020200 N
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 Y
070 N020200 N
070 O010200 N
070 O020200 N
070 P010200 Y
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 497039
071 B000200 249980
071 C000200 243502
071 D000200 103
072 A000200 5
072 B000200 5561
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 0
072 G000200 0
072 H000200 0
072 I000200 5
072 J000200 4
072 K000200 0
072 L000200 0
072 M000200 1
<PAGE> PAGE 12
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 13
072 R000200 10
072 S000200 3
072 T000200 0
072 U000200 0
072 V000200 0
072 W000200 5
072 X000200 41
072 Y000200 0
072 Z000200 5520
072AA000200 0
072BB000200 2274
072CC010200 0
072CC020200 3417
072DD010200 5573
072DD020200 0
072EE000200 0
073 A010200 0.2300
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 0
074 B000200 47494
074 C000200 0
074 D000200 227952
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
074 L000200 3188
074 M000200 0
074 N000200 278634
074 O000200 49522
074 P000200 0
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 1211
074 S000200 0
074 T000200 227901
074 U010200 23407
074 U020200 0
074 V010200 9.74
074 V020200 0.00
<PAGE> PAGE 13
074 W000200 0.0000
074 X000200 8
074 Y000200 0
075 A000200 241844
075 B000200 0
076 000200 0.00
SIGNATURE STEPHEN COHEN
TITLE LEGAL COUNSEL
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 1034106
<NAME> Federated Core Trust
<SERIES>
<NUMBER> 101
<NAME> High Yield Bond Portfolio
<S> <C>
<PERIOD-TYPE> 6
<FISCAL-YEAR-END> Dec-31-1999
<PERIOD-END> Jun-30-1999
<INVESTMENTS-AT-COST> 687,957,769
<INVESTMENTS-AT-VALUE> 662,418,692
<RECEIVABLES> 12,009,739
<ASSETS-OTHER> 2,231
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 674,430,662
<PAYABLE-FOR-SECURITIES> 4,782,230
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 5,562,581
<TOTAL-LIABILITIES> 10,344,811
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 689,297,678
<SHARES-COMMON-STOCK> 72,629,373
<SHARES-COMMON-PRIOR> 60,382,120
<ACCUMULATED-NII-CURRENT> 29,810
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 297,440
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (25,539,077)
<NET-ASSETS> 664,085,851
<DIVIDEND-INCOME> 1,054,694
<INTEREST-INCOME> 29,754,030
<OTHER-INCOME> 0
<EXPENSES-NET> (85,081)
<NET-INVESTMENT-INCOME> 30,723,643
<REALIZED-GAINS-CURRENT> (1,115,519)
<APPREC-INCREASE-CURRENT> (11,510,157)
<NET-CHANGE-FROM-OPS> (12,625,676)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (30,723,643)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 14,036,128
<NUMBER-OF-SHARES-REDEEMED> (4,475,226)
<SHARES-REINVESTED> 2,683,351
<NET-CHANGE-IN-ASSETS> 102,279,941
<ACCUMULATED-NII-PRIOR> 29,810
<ACCUMULATED-GAINS-PRIOR> 1,412,959
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 85,081
<AVERAGE-NET-ASSETS> 632,051,157
<PER-SHARE-NAV-BEGIN> 9.300
<PER-SHARE-NII> 0.460
<PER-SHARE-GAIN-APPREC> (0.160)
<PER-SHARE-DIVIDEND> (0.460)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 9.140
<EXPENSE-RATIO> 0.03
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 1034106
<NAME> Federated Core Trust
<SERIES>
<NUMBER> 201
<NAME> Federated Mortgage Core Portfolio
<S> <C>
<PERIOD-TYPE> 6
<FISCAL-YEAR-END> Dec-31-1999
<PERIOD-END> Jun-30-1999
<INVESTMENTS-AT-COST> 278,863,460
<INVESTMENTS-AT-VALUE> 275,446,344
<RECEIVABLES> 3,187,576
<ASSETS-OTHER> 178
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 278,634,098
<PAYABLE-FOR-SECURITIES> 49,522,419
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,210,594
<TOTAL-LIABILITIES> 50,733,013
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 233,644,866
<SHARES-COMMON-STOCK> 23,407,277
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (52,482)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2,274,183)
<ACCUM-APPREC-OR-DEPREC> (3,417,116)
<NET-ASSETS> 227,901,085
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5,561,600
<OTHER-INCOME> 0
<EXPENSES-NET> (41,203)
<NET-INVESTMENT-INCOME> 5,520,397
<REALIZED-GAINS-CURRENT> (2,274,183)
<APPREC-INCREASE-CURRENT> (3,417,116)
<NET-CHANGE-FROM-OPS> (5,691,299)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5,572,879)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 30,728,926
<NUMBER-OF-SHARES-REDEEMED> (7,761,081)
<SHARES-REINVESTED> 439,432
<NET-CHANGE-IN-ASSETS> 227,901,085
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 41,203
<AVERAGE-NET-ASSETS> 241,843,686
<PER-SHARE-NAV-BEGIN> 10.000
<PER-SHARE-NII> 0.230
<PER-SHARE-GAIN-APPREC> (0.260)
<PER-SHARE-DIVIDEND> (0.230)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 9.740
<EXPENSE-RATIO> 0.05
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
</TABLE>
