<PAGE> PAGE 1
000 B000000 03/31/1999
000 C000000 0001003632
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 U
001 A000000 SEI ASSET ALLOCATION TRUST
001 B000000 811-7445
001 C000000 8003425734
002 A000000 530 EAST SWEDESFORD RD
002 B000000 WAYNE
002 C000000 PA
002 D010000 19087
002 D020000 1658
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 7
007 C010100 1
007 C020100 DIVERSIFIED CONSERVATIVE INCOME FUND
007 C030100 N
007 C010200 2
007 C020200 DIVERSIFIED CONSERVATIVE FUND
007 C030200 N
007 C010300 3
007 C020300 DIVERSIFIED MODERATE GROWTH FUND
007 C030300 N
007 C010400 4
007 C020400 DIVERSIFIED GLOBAL GROWTH FUND
007 C030400 N
007 C010500 5
007 C020500 DIVERSIFIED U.S. STOCK FUND
007 C030500 N
007 C010600 6
007 C020600 DIVERSIFIED GLOBAL MODERATE GROWTH
007 C030600 N
007 C010700 7
007 C020700 DIVERSIFIED GLOBAL STOCK
007 C030700 N
007 C010800 8
007 C010900 9
007 C011000 10
024 00AA00 N
062 A00AA00 N
062 B00AA00 0.0
062 C00AA00 0.0
<PAGE> PAGE 2
062 D00AA00 0.0
062 E00AA00 0.0
062 F00AA00 0.0
062 G00AA00 0.0
062 H00AA00 0.0
062 I00AA00 0.0
062 J00AA00 0.0
062 K00AA00 0.0
062 L00AA00 0.0
062 M00AA00 0.0
062 N00AA00 0.0
062 O00AA00 0.0
062 P00AA00 0.0
062 Q00AA00 0.0
062 R00AA00 0.0
077 A000000 Y
077 B000000 Y
080 A00AA00 CONTINENTAL CASUALTY COMPANY
080 B00AA00 RELIANCE INSURANCE COMPANY
080 C00AA00 58000
081 A00AA00 Y
081 B00AA00 315
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
028 A010100 1335
028 A020100 198
028 A030100 0
028 A040100 1658
028 B010100 1189
028 B020100 0
028 B030100 0
028 B040100 244
028 C010100 1030
028 C020100 691
028 C030100 0
028 C040100 939
028 D010100 1763
028 D020100 331
028 D030100 0
028 D040100 354
028 E010100 1190
028 E020100 0
028 E030100 0
028 E040100 739
028 F010100 6581
<PAGE> PAGE 3
028 F020100 0
028 F030100 0
028 F040100 5867
028 G010100 13088
028 G020100 1220
028 G030100 0
028 G040100 9801
028 H000100 0
042 A000100 100
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
071 A000100 19741
071 B000100 11511
071 C000100 18244
071 D000100 63
072 A000100 12
072 B000100 0
072 C000100 0
072 D000100 0
072 E000100 957
072 F000100 23
072 G000100 46
072 H000100 0
072 I000100 7
072 J000100 3
072 K000100 0
072 L000100 4
072 M000100 2
072 N000100 10
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 1
072 S000100 2
072 T000100 42
072 U000100 4
072 V000100 0
072 W000100 0
072 X000100 144
072 Y000100 78
072 Z000100 891
072AA000100 937
072BB000100 0
072CC010100 312
<PAGE> PAGE 4
072CC020100 0
072DD010100 238
072DD020100 0
072EE000100 193
073 A010100 0.4500
073 A020100 0.3400
073 B000100 0.5300
073 C000100 0.0000
074 A000100 0
074 B000100 0
074 C000100 0
074 D000100 0
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 27119
074 J000100 0
074 K000100 0
074 L000100 0
074 M000100 0
074 N000100 27119
074 O000100 0
074 P000100 0
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 39
074 S000100 0
074 T000100 27080
074 U010100 1894
074 U020100 443
074 V010100 11.60
074 V020100 11.53
074 W000100 0.0000
074 X000100 56
074 Y000100 0
075 A000100 0
075 B000100 23156
076 000100 0.00
028 A010200 13202
028 A020200 186
028 A030200 0
028 A040200 584
028 B010200 1889
028 B020200 0
028 B030200 0
028 B040200 2555
028 C010200 1510
028 C020200 1872
<PAGE> PAGE 5
028 C030200 0
028 C040200 1101
028 D010200 1900
028 D020200 853
028 D030200 0
028 D040200 951
028 E010200 1385
028 E020200 0
028 E030200 0
028 E040200 3604
028 F010200 2182
028 F020200 0
028 F030200 0
028 F040200 2192
028 G010200 22068
028 G020200 2911
028 G030200 0
028 G040200 10987
028 H000200 0
042 A000200 100
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
071 A000200 35141
071 B000200 12530
071 C000200 42194
071 D000200 30
072 A000200 12
072 B000200 0
072 C000200 0
072 D000200 0
072 E000200 1525
072 F000200 43
072 G000200 86
072 H000200 0
072 I000200 13
072 J000200 6
072 K000200 0
072 L000200 7
072 M000200 3
072 N000200 25
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 5
<PAGE> PAGE 6
072 S000200 5
072 T000200 106
072 U000200 4
072 V000200 0
072 W000200 0
072 X000200 303
072 Y000200 145
072 Z000200 1367
072AA000200 2770
072BB000200 0
072CC010200 2002
072CC020200 0
072DD010200 610
072DD020200 0
072EE000200 986
073 A010200 0.2900
073 A020200 0.1800
073 B000200 0.5800
073 C000200 0.0000
074 A000200 0
074 B000200 0
074 C000200 0
074 D000200 0
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 52688
074 J000200 0
074 K000200 0
074 L000200 0
074 M000200 21
074 N000200 52709
074 O000200 0
074 P000200 0
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 0
074 S000200 0
074 T000200 52709
074 U010200 3530
074 U020200 1091
074 V010200 11.42
074 V020200 11.37
074 W000200 0.0000
074 X000200 56
074 Y000200 0
075 A000200 0
075 B000200 43133
<PAGE> PAGE 7
076 000200 0.00
028 A010300 1338
028 A020300 290
028 A030300 0
028 A040300 1897
028 B010300 2120
028 B020300 0
028 B030300 0
028 B040300 3200
028 C010300 4154
028 C020300 4337
028 C030300 0
028 C040300 3216
028 D010300 4185
028 D020300 1614
028 D030300 0
028 D040300 1632
028 E010300 3093
028 E020300 0
028 E030300 0
028 E040300 1080
028 F010300 58042
028 F020300 0
028 F030300 0
028 F040300 2052
028 G010300 72932
028 G020300 6241
028 G030300 0
028 G040300 13077
028 H000300 0
042 A000300 100
042 B000300 0
042 C000300 0
042 D000300 0
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 0
044 000300 0
071 A000300 62852
071 B000300 18932
071 C000300 85278
071 D000300 22
072 A000300 12
072 B000300 0
072 C000300 0
072 D000300 0
072 E000300 2188
072 F000300 87
072 G000300 173
<PAGE> PAGE 8
072 H000300 0
072 I000300 43
072 J000300 12
072 K000300 0
072 L000300 15
072 M000300 6
072 N000300 63
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 13
072 S000300 13
072 T000300 205
072 U000300 4
072 V000300 0
072 W000300 1
072 X000300 635
072 Y000300 326
072 Z000300 1879
072AA000300 5468
072BB000300 0
072CC010300 5787
072CC020300 0
072DD010300 775
072DD020300 0
072EE000300 1226
073 A010300 0.2300
073 A020300 0.1200
073 B000300 0.9200
073 C000300 0.0000
074 A000300 52480
074 B000300 0
074 C000300 0
074 D000300 0
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 107176
074 J000300 0
074 K000300 0
074 L000300 139
074 M000300 0
074 N000300 159795
074 O000300 661
074 P000300 0
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 66
<PAGE> PAGE 9
074 S000300 0
074 T000300 159068
074 U010300 9982
074 U020300 2102
074 V010300 13.18
074 V020300 13.10
074 W000300 0.0000
074 X000300 82
074 Y000300 0
075 A000300 0
075 B000300 86695
076 000300 0.00
028 A010400 1836
028 A020400 197
028 A030400 0
028 A040400 2297
028 B010400 2638
028 B020400 0
028 B030400 0
028 B040400 1127
028 C010400 3298
028 C020400 4012
028 C030400 0
028 C040400 3942
028 D010400 4534
028 D020400 1705
028 D030400 0
028 D040400 2755
028 E010400 2274
028 E020400 0
028 E030400 0
028 E040400 2373
028 F010400 3132
028 F020400 0
028 F030400 0
028 F040400 3753
028 G010400 17712
028 G020400 5914
028 G030400 0
028 G040400 16247
028 H000400 0
042 A000400 100
042 B000400 0
042 C000400 0
042 D000400 0
042 E000400 0
042 F000400 0
042 G000400 0
042 H000400 0
043 000400 0
044 000400 0
<PAGE> PAGE 10
071 A000400 40333
071 B000400 14887
071 C000400 84882
071 D000400 17
072 A000400 12
072 B000400 0
072 C000400 0
072 D000400 0
072 E000400 1508
072 F000400 86
072 G000400 173
072 H000400 0
072 I000400 40
072 J000400 12
072 K000400 0
072 L000400 15
072 M000400 6
072 N000400 69
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 14
072 S000400 14
072 T000400 156
072 U000400 4
072 V000400 0
072 W000400 0
072 X000400 589
072 Y000400 327
072 Z000400 1246
072AA000400 4289
072BB000400 0
072CC010400 5990
072CC020400 0
072DD010400 553
072DD020400 0
072EE000400 1315
073 A010400 0.1400
073 A020400 0.0300
073 B000400 0.8400
073 C000400 0.0000
074 A000400 0
074 B000400 0
074 C000400 0
074 D000400 0
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 97550
074 J000400 0
<PAGE> PAGE 11
074 K000400 0
074 L000400 0
074 M000400 227
074 N000400 97777
074 O000400 0
074 P000400 0
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 0
074 S000400 0
074 T000400 97777
074 U010400 5963
074 U020400 1444
074 V010400 13.22
074 V020400 13.14
074 W000400 0.0000
074 X000400 89
074 Y000400 0
075 A000400 0
075 B000400 86415
076 000400 0.00
028 A010500 3963
028 A020500 30
028 A030500 0
028 A040500 1089
028 B010500 3243
028 B020500 0
028 B030500 0
028 B040500 1168
028 C010500 3330
028 C020500 5193
028 C030500 0
028 C040500 2809
028 D010500 4674
028 D020500 1535
028 D030500 0
028 D040500 1500
028 E010500 2413
028 E020500 0
028 E030500 0
028 E040500 851
028 F010500 5586
028 F020500 0
028 F030500 0
028 F040500 1985
028 G010500 23209
028 G020500 6758
028 G030500 0
028 G040500 9402
<PAGE> PAGE 12
028 H000500 0
042 A000500 100
042 B000500 0
042 C000500 0
042 D000500 0
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 0
044 000500 0
071 A000500 59886
071 B000500 18669
071 C000500 62772
071 D000500 30
072 A000500 12
072 B000500 0
072 C000500 0
072 D000500 0
072 E000500 382
072 F000500 64
072 G000500 128
072 H000500 0
072 I000500 34
072 J000500 9
072 K000500 0
072 L000500 11
072 M000500 5
072 N000500 47
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 8
072 S000500 8
072 T000500 190
072 U000500 4
072 V000500 0
072 W000500 0
072 X000500 508
072 Y000500 240
072 Z000500 114
072AA000500 5449
072BB000500 0
072CC010500 7865
072CC020500 0
072DD010500 35
072DD020500 0
072EE000500 297
073 A010500 0.0300
073 A020500 0.0000
073 B000500 1.6400
<PAGE> PAGE 13
073 C000500 0.0000
074 A000500 0
074 B000500 0
074 C000500 0
074 D000500 0
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 85066
074 J000500 0
074 K000500 0
074 L000500 0
074 M000500 0
074 N000500 85066
074 O000500 0
074 P000500 0
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 33
074 S000500 0
074 T000500 85033
074 U010500 3870
074 U020500 1580
074 V010500 15.70
074 V020500 15.36
074 W000500 0.0000
074 X000500 64
074 Y000500 0
075 A000500 0
075 B000500 64111
076 000500 0.00
028 A010600 563
028 A020600 95
028 A030600 0
028 A040600 1295
028 B010600 1326
028 B020600 0
028 B030600 0
028 B040600 455
028 C010600 1276
028 C020600 1010
028 C030600 0
028 C040600 420
028 D010600 4724
028 D020600 516
028 D030600 0
028 D040600 1989
028 E010600 1030
<PAGE> PAGE 14
028 E020600 0
028 E030600 0
028 E040600 3250
028 F010600 1472
028 F020600 0
028 F030600 0
028 F040600 1398
028 G010600 10391
028 G020600 1621
028 G030600 0
028 G040600 8807
028 H000600 0
042 A000600 100
042 B000600 0
042 C000600 0
042 D000600 0
042 E000600 0
042 F000600 0
042 G000600 0
042 H000600 0
043 000600 0
044 000600 0
071 A000600 19900
071 B000600 9089
071 C000600 26370
071 D000600 34
072 A000600 12
072 B000600 0
072 C000600 0
072 D000600 0
072 E000600 776
072 F000600 27
072 G000600 54
072 H000600 0
072 I000600 11
072 J000600 4
072 K000600 0
072 L000600 5
072 M000600 2
072 N000600 22
072 O000600 0
072 P000600 0
072 Q000600 0
072 R000600 3
072 S000600 3
072 T000600 68
072 U000600 0
072 V000600 0
072 W000600 0
072 X000600 199
072 Y000600 99
<PAGE> PAGE 15
072 Z000600 676
072AA000600 869
072BB000600 0
072CC010600 695
072CC020600 0
072DD010600 252
072DD020600 0
072EE000600 8
073 A010600 0.2500
073 A020600 0.1400
073 B000600 0.6200
073 C000600 0.0000
074 A000600 0
074 B000600 0
074 C000600 0
074 D000600 0
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 31165
074 J000600 0
074 K000600 0
074 L000600 0
074 M000600 0
074 N000600 31165
074 O000600 0
074 P000600 0
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 13
074 S000600 0
074 T000600 31152
074 U010600 1978
074 U020600 594
074 V010600 12.14
074 V020600 12.02
074 W000600 0.0000
074 X000600 48
074 Y000600 0
075 A000600 0
075 B000600 26860
076 000600 0.00
028 A010700 2177
028 A020700 15
028 A030700 0
028 A040700 1157
028 B010700 2453
028 B020700 0
<PAGE> PAGE 16
028 B030700 0
028 B040700 1050
028 C010700 1258
028 C020700 2010
028 C030700 0
028 C040700 754
028 D010700 2392
028 D020700 770
028 D030700 0
028 D040700 557
028 E010700 1476
028 E020700 0
028 E030700 0
028 E040700 860
028 F010700 2447
028 F020700 0
028 F030700 0
028 F040700 2710
028 G010700 12203
028 G020700 2795
028 G030700 0
028 G040700 7088
028 H000700 0
042 A000700 100
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
071 A000700 30531
071 B000700 10149
071 C000700 33773
071 D000700 30
072 A000700 12
072 B000700 0
072 C000700 0
072 D000700 0
072 E000700 232
072 F000700 34
072 G000700 69
072 H000700 0
072 I000700 21
072 J000700 4
072 K000700 0
072 L000700 6
072 M000700 3
072 N000700 24
<PAGE> PAGE 17
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 2
072 S000700 2
072 T000700 57
072 U000700 8
072 V000700 0
072 W000700 0
072 X000700 230
072 Y000700 132
072 Z000700 134
072AA000700 1667
072BB000700 0
072CC010700 2910
072CC020700 0
072DD010700 63
072DD020700 0
072EE000700 0
073 A010700 0.0300
073 A020700 0.0000
073 B000700 0.9300
073 C000700 0.0000
074 A000700 0
074 B000700 0
074 C000700 0
074 D000700 0
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 44413
074 J000700 0
074 K000700 0
074 L000700 0
074 M000700 0
074 N000700 44413
074 O000700 0
074 P000700 0
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 162
074 S000700 0
074 T000700 44251
074 U010700 2967
074 U020700 497
074 V010700 12.80
074 V020700 12.59
074 W000700 0.0000
<PAGE> PAGE 18
074 X000700 47
074 Y000700 0
075 A000700 0
075 B000700 34456
076 000700 0.00
SIGNATURE MARK NAGLE
TITLE CONTROLLER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 011
<NAME> DIVERSIFIED CONSERVATIVE INCOME FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 26807
<INVESTMENTS-AT-VALUE> 27119
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 27119
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 39
<TOTAL-LIABILITIES> 39
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 26337
<SHARES-COMMON-STOCK> 1894
<SHARES-COMMON-PRIOR> 1179
<ACCUMULATED-NII-CURRENT> 238
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 193
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 312
<NET-ASSETS> 27080
<DIVIDEND-INCOME> 957
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (66)
<NET-INVESTMENT-INCOME> 891
<REALIZED-GAINS-CURRENT> 937
<APPREC-INCREASE-CURRENT> (209)
<NET-CHANGE-FROM-OPS> 1619
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (674)
<DISTRIBUTIONS-OF-GAINS> (845)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 22245
<NUMBER-OF-SHARES-REDEEMED> (15111)
<SHARES-REINVESTED> 1156
<NET-CHANGE-IN-ASSETS> 8111
<ACCUMULATED-NII-PRIOR> 140
<ACCUMULATED-GAINS-PRIOR> 321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 23
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 144
<AVERAGE-NET-ASSETS> 23156
<PER-SHARE-NAV-BEGIN> 11.76
<PER-SHARE-NII> .560
<PER-SHARE-GAIN-APPREC> .260
<PER-SHARE-DIVIDEND> (.450)
<PER-SHARE-DISTRIBUTIONS> (.530)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.60
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 012
<NAME> DIVERSIFIED CONSERVATIVE INCOME FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 26807
<INVESTMENTS-AT-VALUE> 27119
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 27119
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 39
<TOTAL-LIABILITIES> 39
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 26337
<SHARES-COMMON-STOCK> 443
<SHARES-COMMON-PRIOR> 222
<ACCUMULATED-NII-CURRENT> 238
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 193
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 312
<NET-ASSETS> 27080
<DIVIDEND-INCOME> 957
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (66)
<NET-INVESTMENT-INCOME> 891
<REALIZED-GAINS-CURRENT> 937
<APPREC-INCREASE-CURRENT> (209)
<NET-CHANGE-FROM-OPS> 1619
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (119)
<DISTRIBUTIONS-OF-GAINS> (220)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3547
<NUMBER-OF-SHARES-REDEEMED> (1289)
<SHARES-REINVESTED> 309
<NET-CHANGE-IN-ASSETS> 2507
<ACCUMULATED-NII-PRIOR> 140
<ACCUMULATED-GAINS-PRIOR> 321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 23
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 144
<AVERAGE-NET-ASSETS> 23156
<PER-SHARE-NAV-BEGIN> 11.70
<PER-SHARE-NII> .400
<PER-SHARE-GAIN-APPREC> .300
<PER-SHARE-DIVIDEND> (.340)
<PER-SHARE-DISTRIBUTIONS> (.530)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.53
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 021
<NAME> DIVERSIFIED CONSERVATIVE FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 50686
<INVESTMENTS-AT-VALUE> 52688
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 21
<TOTAL-ASSETS> 52709
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 49111
<SHARES-COMMON-STOCK> 3529
<SHARES-COMMON-PRIOR> 1957
<ACCUMULATED-NII-CURRENT> 610
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 986
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2002
<NET-ASSETS> 52709
<DIVIDEND-INCOME> 1525
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (158)
<NET-INVESTMENT-INCOME> 1367
<REALIZED-GAINS-CURRENT> 2770
<APPREC-INCREASE-CURRENT> 339
<NET-CHANGE-FROM-OPS> 4476
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (745)
<DISTRIBUTIONS-OF-GAINS> (1979)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 29879
<NUMBER-OF-SHARES-REDEEMED> (15023)
<SHARES-REINVESTED> 2414
<NET-CHANGE-IN-ASSETS> 18179
<ACCUMULATED-NII-PRIOR> 148
<ACCUMULATED-GAINS-PRIOR> 807
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 43
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 303
<AVERAGE-NET-ASSETS> 43133
<PER-SHARE-NAV-BEGIN> 11.31
<PER-SHARE-NII> .500
<PER-SHARE-GAIN-APPREC> .480
<PER-SHARE-DIVIDEND> (.290)
<PER-SHARE-DISTRIBUTIONS> (.580)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.42
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 022
<NAME> DIVERSIFIED CONSERVATIVE FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 50686
<INVESTMENTS-AT-VALUE> 52688
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 21
<TOTAL-ASSETS> 52709
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 49111
<SHARES-COMMON-STOCK> 1091
<SHARES-COMMON-PRIOR> 518
<ACCUMULATED-NII-CURRENT> 610
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 986
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2002
<NET-ASSETS> 52709
<DIVIDEND-INCOME> 1525
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (158)
<NET-INVESTMENT-INCOME> 1367
<REALIZED-GAINS-CURRENT> 2770
<APPREC-INCREASE-CURRENT> 339
<NET-CHANGE-FROM-OPS> 4476
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (160)
<DISTRIBUTIONS-OF-GAINS> (612)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 8741
<NUMBER-OF-SHARES-REDEEMED> (3010)
<SHARES-REINVESTED> 761
<NET-CHANGE-IN-ASSETS> 6563
<ACCUMULATED-NII-PRIOR> 148
<ACCUMULATED-GAINS-PRIOR> 807
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 43
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 303
<AVERAGE-NET-ASSETS> 43133
<PER-SHARE-NAV-BEGIN> 11.27
<PER-SHARE-NII> .380
<PER-SHARE-GAIN-APPREC> .480
<PER-SHARE-DIVIDEND> (.180)
<PER-SHARE-DISTRIBUTIONS> (.580)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.37
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 031
<NAME> DIVERSIFIED MODERATE GROWTH FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 101389
<INVESTMENTS-AT-VALUE> 107176
<RECEIVABLES> 139
<ASSETS-OTHER> 52480
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 159795
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 727
<TOTAL-LIABILITIES> 727
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 151280
<SHARES-COMMON-STOCK> 9982
<SHARES-COMMON-PRIOR> 3833
<ACCUMULATED-NII-CURRENT> 775
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1226
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5787
<NET-ASSETS> 159068
<DIVIDEND-INCOME> 2188
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (309)
<NET-INVESTMENT-INCOME> 1879
<REALIZED-GAINS-CURRENT> 5468
<APPREC-INCREASE-CURRENT> 256
<NET-CHANGE-FROM-OPS> 7603
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1111)
<DISTRIBUTIONS-OF-GAINS> (4761)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 97031
<NUMBER-OF-SHARES-REDEEMED> (20958)
<SHARES-REINVESTED> 4777
<NET-CHANGE-IN-ASSETS> 80854
<ACCUMULATED-NII-PRIOR> 197
<ACCUMULATED-GAINS-PRIOR> 2187
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 87
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 635
<AVERAGE-NET-ASSETS> 86695
<PER-SHARE-NAV-BEGIN> 13.22
<PER-SHARE-NII> .320
<PER-SHARE-GAIN-APPREC> .790
<PER-SHARE-DIVIDEND> (.230)
<PER-SHARE-DISTRIBUTIONS> (.920)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.18
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 032
<NAME> DIVERSIFIED MODERATE GROWTH FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 101389
<INVESTMENTS-AT-VALUE> 107176
<RECEIVABLES> 139
<ASSETS-OTHER> 52480
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 159795
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 727
<TOTAL-LIABILITIES> 727
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 151280
<SHARES-COMMON-STOCK> 2102
<SHARES-COMMON-PRIOR> 679
<ACCUMULATED-NII-CURRENT> 775
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1226
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5787
<NET-ASSETS> 159068
<DIVIDEND-INCOME> 2188
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (309)
<NET-INVESTMENT-INCOME> 1879
<REALIZED-GAINS-CURRENT> 5468
<APPREC-INCREASE-CURRENT> 256
<NET-CHANGE-FROM-OPS> 7603
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (178)
<DISTRIBUTIONS-OF-GAINS> (1681)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 19641
<NUMBER-OF-SHARES-REDEEMED> (2708)
<SHARES-REINVESTED> 1800
<NET-CHANGE-IN-ASSETS> 18602
<ACCUMULATED-NII-PRIOR> 197
<ACCUMULATED-GAINS-PRIOR> 2187
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 87
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 635
<AVERAGE-NET-ASSETS> 86695
<PER-SHARE-NAV-BEGIN> 13.16
<PER-SHARE-NII> .260
<PER-SHARE-GAIN-APPREC> .720
<PER-SHARE-DIVIDEND> (.120)
<PER-SHARE-DISTRIBUTIONS> (.920)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.10
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 041
<NAME> DIVERSIFIED GLOBAL GROWTH FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 91560
<INVESTMENTS-AT-VALUE> 97550
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 227
<TOTAL-ASSETS> 97777
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 89919
<SHARES-COMMON-STOCK> 5963
<SHARES-COMMON-PRIOR> 4179
<ACCUMULATED-NII-CURRENT> 553
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1315
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5990
<NET-ASSETS> 97777
<DIVIDEND-INCOME> 1508
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (262)
<NET-INVESTMENT-INCOME> 1246
<REALIZED-GAINS-CURRENT> 4289
<APPREC-INCREASE-CURRENT> (1136)
<NET-CHANGE-FROM-OPS> 4399
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (733)
<DISTRIBUTIONS-OF-GAINS> (4714)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 41154
<NUMBER-OF-SHARES-REDEEMED> (22669)
<SHARES-REINVESTED> 5084
<NET-CHANGE-IN-ASSETS> 21786
<ACCUMULATED-NII-PRIOR> 94
<ACCUMULATED-GAINS-PRIOR> 2775
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 86
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 589
<AVERAGE-NET-ASSETS> 86415
<PER-SHARE-NAV-BEGIN> 13.64
<PER-SHARE-NII> .290
<PER-SHARE-GAIN-APPREC> .270
<PER-SHARE-DIVIDEND> (.140)
<PER-SHARE-DISTRIBUTIONS> (.840)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.22
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 042
<NAME> DIVERSIFIED GLOBAL GROWTH FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 91560
<INVESTMENTS-AT-VALUE> 97550
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 227
<TOTAL-ASSETS> 97777
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 89919
<SHARES-COMMON-STOCK> 1444
<SHARES-COMMON-PRIOR> 1026
<ACCUMULATED-NII-CURRENT> 553
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1315
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5990
<NET-ASSETS> 97777
<DIVIDEND-INCOME> 1508
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (262)
<NET-INVESTMENT-INCOME> 1246
<REALIZED-GAINS-CURRENT> 4289
<APPREC-INCREASE-CURRENT> (1136)
<NET-CHANGE-FROM-OPS> 4399
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (37)
<DISTRIBUTIONS-OF-GAINS> (1053)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7270
<NUMBER-OF-SHARES-REDEEMED> (2939)
<SHARES-REINVESTED> 1054
<NET-CHANGE-IN-ASSETS> 5030
<ACCUMULATED-NII-PRIOR> 94
<ACCUMULATED-GAINS-PRIOR> 2775
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 86
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 589
<AVERAGE-NET-ASSETS> 86415
<PER-SHARE-NAV-BEGIN> 13.59
<PER-SHARE-NII> .140
<PER-SHARE-GAIN-APPREC> .280
<PER-SHARE-DIVIDEND> (.030)
<PER-SHARE-DISTRIBUTIONS> (.840)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.14
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 051
<NAME> DIVERSIFIED U.S. STOCK FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 77201
<INVESTMENTS-AT-VALUE> 85066
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 85066
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 33
<TOTAL-LIABILITIES> 33
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76836
<SHARES-COMMON-STOCK> 3870
<SHARES-COMMON-PRIOR> 1582
<ACCUMULATED-NII-CURRENT> 35
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 297
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7865
<NET-ASSETS> 85033
<DIVIDEND-INCOME> 382
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (268)
<NET-INVESTMENT-INCOME> 114
<REALIZED-GAINS-CURRENT> 5449
<APPREC-INCREASE-CURRENT> 800
<NET-CHANGE-FROM-OPS> 6363
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (44)
<DISTRIBUTIONS-OF-GAINS> (5045)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 49418
<NUMBER-OF-SHARES-REDEEMED> (18120)
<SHARES-REINVESTED> 4601
<NET-CHANGE-IN-ASSETS> 35409
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 2054
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 64
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 508
<AVERAGE-NET-ASSETS> 64111
<PER-SHARE-NAV-BEGIN> 16.03
<PER-SHARE-NII> .090
<PER-SHARE-GAIN-APPREC> 1.25
<PER-SHARE-DIVIDEND> (.030)
<PER-SHARE-DISTRIBUTIONS> (1.640)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 15.70
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 052
<NAME> DIVERSIFIED U.S. STOCK FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 77201
<INVESTMENTS-AT-VALUE> 85066
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 85066
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 33
<TOTAL-LIABILITIES> 33
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76836
<SHARES-COMMON-STOCK> 1580
<SHARES-COMMON-PRIOR> 871
<ACCUMULATED-NII-CURRENT> 35
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 297
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7865
<NET-ASSETS> 85033
<DIVIDEND-INCOME> 382
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (268)
<NET-INVESTMENT-INCOME> 114
<REALIZED-GAINS-CURRENT> 5449
<APPREC-INCREASE-CURRENT> 800
<NET-CHANGE-FROM-OPS> 6363
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (2197)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12119
<NUMBER-OF-SHARES-REDEEMED> (3376)
<SHARES-REINVESTED> 2163
<NET-CHANGE-IN-ASSETS> 10473
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 2054
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 64
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 508
<AVERAGE-NET-ASSETS> 64111
<PER-SHARE-NAV-BEGIN> 15.83
<PER-SHARE-NII> .030
<PER-SHARE-GAIN-APPREC> 1.140
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (1.640)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 15.36
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 061
<NAME> DIVERSIFIED GLOBAL MODERATE GROWTH FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 30470
<INVESTMENTS-AT-VALUE> 31165
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 31165
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 13
<TOTAL-LIABILITIES> 13
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 30197
<SHARES-COMMON-STOCK> 1978
<SHARES-COMMON-PRIOR> 1061
<ACCUMULATED-NII-CURRENT> 252
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 8
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 695
<NET-ASSETS> 31152
<DIVIDEND-INCOME> 776
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (100)
<NET-INVESTMENT-INCOME> 676
<REALIZED-GAINS-CURRENT> 869
<APPREC-INCREASE-CURRENT> (262)
<NET-CHANGE-FROM-OPS> 1283
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (404)
<DISTRIBUTIONS-OF-GAINS> (1120)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 20824
<NUMBER-OF-SHARES-REDEEMED> (10804)
<SHARES-REINVESTED> 1250
<NET-CHANGE-IN-ASSETS> 10755
<ACCUMULATED-NII-PRIOR> 58
<ACCUMULATED-GAINS-PRIOR> 613
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 27
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 199
<AVERAGE-NET-ASSETS> 26860
<PER-SHARE-NAV-BEGIN> 12.49
<PER-SHARE-NII> .400
<PER-SHARE-GAIN-APPREC> .120
<PER-SHARE-DIVIDEND> (.250)
<PER-SHARE-DISTRIBUTIONS> (.620)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.14
<EXPENSE-RATIO> .12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 062
<NAME> DIVERSIFIED GLOBAL MODERATE GROWTH FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 30470
<INVESTMENTS-AT-VALUE> 31165
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 31165
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 13
<TOTAL-LIABILITIES> 13
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 30197
<SHARES-COMMON-STOCK> 594
<SHARES-COMMON-PRIOR> 565
<ACCUMULATED-NII-CURRENT> 252
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 8
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 695
<NET-ASSETS> 31152
<DIVIDEND-INCOME> 776
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (100)
<NET-INVESTMENT-INCOME> 676
<REALIZED-GAINS-CURRENT> 869
<APPREC-INCREASE-CURRENT> (262)
<NET-CHANGE-FROM-OPS> 1283
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (78)
<DISTRIBUTIONS-OF-GAINS> (354)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2019
<NUMBER-OF-SHARES-REDEEMED> (2211)
<SHARES-REINVESTED> 491
<NET-CHANGE-IN-ASSETS> 141
<ACCUMULATED-NII-PRIOR> 58
<ACCUMULATED-GAINS-PRIOR> 613
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 27
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 199
<AVERAGE-NET-ASSETS> 26860
<PER-SHARE-NAV-BEGIN> 12.38
<PER-SHARE-NII> .300
<PER-SHARE-GAIN-APPREC> .100
<PER-SHARE-DIVIDEND> (.140)
<PER-SHARE-DISTRIBUTIONS> (.620)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.02
<EXPENSE-RATIO> 1.12
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 071
<NAME> DIVERSIFIED GLOBAL STOCK FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 41503
<INVESTMENTS-AT-VALUE> 44413
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 44413
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 162
<TOTAL-LIABILITIES> 162
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 41662
<SHARES-COMMON-STOCK> 2966
<SHARES-COMMON-PRIOR> 1485
<ACCUMULATED-NII-CURRENT> 63
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (384)
<ACCUM-APPREC-OR-DEPREC> 2910
<NET-ASSETS> 44251
<DIVIDEND-INCOME> 232
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (98)
<NET-INVESTMENT-INCOME> 134
<REALIZED-GAINS-CURRENT> 1667
<APPREC-INCREASE-CURRENT> 561
<NET-CHANGE-FROM-OPS> 2362
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (54)
<DISTRIBUTIONS-OF-GAINS> (2398)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24792
<NUMBER-OF-SHARES-REDEEMED> (8643)
<SHARES-REINVESTED> 2345
<NET-CHANGE-IN-ASSETS> 18257
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 794
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 34
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 230
<AVERAGE-NET-ASSETS> 34456
<PER-SHARE-NAV-BEGIN> 13.28
<PER-SHARE-NII> .120
<PER-SHARE-GAIN-APPREC> .360
<PER-SHARE-DIVIDEND> (.030)
<PER-SHARE-DISTRIBUTIONS> (.930)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.80
<EXPENSE-RATIO> .120
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001003632
<NAME> SEI ASSET ALLOCATION
<SERIES>
<NUMBER> 072
<NAME> DIVERSIFIED GLOBAL STOCK FUND CLASS D
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> MAR-31-1998
<PERIOD-END> MAR-31-1999
<INVESTMENTS-AT-COST> 41503
<INVESTMENTS-AT-VALUE> 44413
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 44413
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 162
<TOTAL-LIABILITIES> 162
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 41662
<SHARES-COMMON-STOCK> 497
<SHARES-COMMON-PRIOR> 221
<ACCUMULATED-NII-CURRENT> 63
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (384)
<ACCUM-APPREC-OR-DEPREC> 2910
<NET-ASSETS> 44251
<DIVIDEND-INCOME> 232
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> (98)
<NET-INVESTMENT-INCOME> 134
<REALIZED-GAINS-CURRENT> 1667
<APPREC-INCREASE-CURRENT> 561
<NET-CHANGE-FROM-OPS> 2362
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (465)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5849
<NUMBER-OF-SHARES-REDEEMED> (2627)
<SHARES-REINVESTED> 450
<NET-CHANGE-IN-ASSETS> 3354
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 794
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 34
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 230
<AVERAGE-NET-ASSETS> 34456
<PER-SHARE-NAV-BEGIN> 13.16
<PER-SHARE-NII> .030
<PER-SHARE-GAIN-APPREC> .330
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (.930)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.59
<EXPENSE-RATIO> 1.12
</TABLE>
REPORT OF INDEPENDENT ACCOUNTANTS
To the Board of Trustees of
SEI Asset Allocation Trust:
In planning and performing our audit of the financial
statements and financial highlights of SEI Asset
Allocation Trust (the "Trust") for the year ended March
31, 1999, we considered its internal control, including
control activities for safeguarding securities, in order
to determine our auditing procedures for the purpose of
expressing our opinion on the financial statements and
financial highlights and to comply with the requirements
of Form N-SAR, not to provide assurance on internal
control.
The management of the Trust is responsible for
establishing and maintaining internal control. In
fulfilling this responsibility, estimates and judgments
by management are required to assess the expected benefits
and related costs of controls. Generally, controls that
are relevant to an audit pertain to the entity's objective
of preparing financial statements and financial highlights
for external purposes that are fairly presented in
conformity with generally accepted accounting principles.
Those controls include the safeguarding of assets against
unauthorized acquisition, use or disposition.
Because of inherent limitations in internal control,
error or fraud may occur and not be detected. Also,
projection of any evaluation of internal control to future
periods is subject to the risk that it may become inadequate
because of changes in conditions or that the effectiveness
of the design and operation may deteriorate.
Our consideration of internal control would not necessarily
disclose all matters in internal control that might be
material weaknesses under standards established by the
American Institute of Certified Public Accountants. A
material weakness is a condition in which the design or
operation of one or more of the internal control components
does not reduce to a relatively low level the risk that
misstatements caused by error or fraud in amounts that would
be material in relation to the financial statements and
financial highlights being audited may occur and not be
detected within a timely period by employees in the normal
course of performing their assigned functions. However, we
noted no matters involving internal control and its operation,
including controls over safeguarding securities, that we
consider to be material weaknesses as defined above as of
March 31, 1999.
This report is intended solely for the information and use
of management, the Board of Trustees and the Securities and
Exchange Commission.
PriceWaterhouseCoopers LLP
May 7, 1999
