LOOMIS SAYLES INVESTMENT TRUST
NSAR-A, 1997-08-29
Previous: INTERACTIVE INVESTMENTS, NSAR-A, 1997-08-29
Next: VAN KAMPEN AMERICAN CAPITAL GLOBAL MANAGED ASSETS FUND, NSAR-A, 1997-08-29



<PAGE>      PAGE  1
000 A000000 06/30/97
000 C000000 000917469
000 D000000 N
000 E000000 NC
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 LOOMIS SAYLES INVESTMENT TRUST
001 B000000 811-08282
001 C000000 6174822450
002 A000000 ONE FINANCIAL CENTER
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  9
007 C010100  1
007 C020100 LSIT INVESTMENT GRADE FIXED INCOME FUND
007 C030100 N
007 C010200  2
007 C020200 LSIT FIXED INCOME FUND
007 C030200 N
007 C010300  3
007 C020300 LSIT CALIFORNIA TAX FREE INCOME FUND
007 C030300 N
007 C010400  4
007 C020400 LSIT MORTGAGE SECURITES FUND
007 C030400 Y
007 C010500  5
007 C020500 LSIT CORE GROWTH FUND
007 C030500 N
007 C010600  6
007 C020600 LSIT CORE FIXED INCOME FUND
007 C030600 N
007 C010700  7
007 C020700 LSIT HIGH YIELD FIXED INCOME FUND
007 C030700 N
007 C010800  8
007 C020800 LSIT CONVERTIBLE BOND FUND
007 C030800 N
007 C010900  9
007 C020900 LSIT INTERMEDIATE DURATION FIXED INCOME FUND
007 C030900 N
007 C011000 10
007 C011100 11
<PAGE>      PAGE  2
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
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
<PAGE>      PAGE  3
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
007 C018000 80
008 A00AA01 LOOMIS, SAYLES & COMPANY, L.P.
008 B00AA01 A
008 C00AA01 801-170
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02111
010 A00AA01 STATE STREET BANK AND TRUST COMPANY
010 B00AA01 85-05003
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02110
077 A000000 Y
077 B000000 Y
028 A010100       600
028 A020100       237
028 A030100         0
028 A040100         0
028 B010100         0
028 B020100       238
028 B030100         0
028 B040100       120
028 C010100         0
028 C020100       239
028 C030100         0
028 C040100         0
028 D010100      1775
028 D020100       242
028 D030100         0
028 D040100         0
028 E010100       656
028 E020100       256
028 E030100         0
028 E040100         0
<PAGE>      PAGE  4
028 F010100      1000
028 F020100       256
028 F030100         0
028 F040100       263
028 G010100      4031
028 G020100      1468
028 G030100         0
028 G040100       382
028 H000100         0
062 A000100 Y
062 B000100   0.0
062 C000100   0.0
062 D000100   0.0
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   0.9
062 N000100   1.5
062 O000100   0.0
062 P000100  94.5
062 Q000100   2.6
062 R000100   0.0
063 A000100   0
063 B000100 19.9
064 A000100 N
064 B000100 N
071 A000100     18628
071 B000100     14235
071 C000100     52227
071 D000100   27
072 A000100  6
072 B000100     1983
072 C000100       53
072 D000100        0
072 E000100        0
072 F000100      105
072 G000100        0
072 H000100        0
072 I000100        7
072 J000100       28
072 K000100        0
072 L000100        1
072 M000100        1
072 N000100        0
072 O000100        0
072 P000100        0
<PAGE>      PAGE  5
072 Q000100       12
072 R000100        7
072 S000100        3
072 T000100        0
072 U000100        0
072 V000100        0
072 W000100        1
072 X000100      165
072 Y000100       20
072 Z000100     1891
072AA000100      111
072BB000100        1
072CC010100      108
072CC020100        0
072DD010100     1915
072DD020100        0
072EE000100        0
073 A010100   0.4200
073 A020100   0.0000
073 B000100   0.0000
073 C000100   0.0000
074 A000100       90
074 B000100        0
074 C000100        0
074 D000100    54463
074 E000100     1484
074 F000100        0
074 G000100        0
074 H000100        0
074 I000100        0
074 J000100        0
074 K000100       10
074 L000100     1099
074 M000100        0
074 N000100    57146
074 O000100        0
074 P000100       54
074 Q000100        0
074 R010100        0
074 R020100        0
074 R030100        0
074 R040100       30
074 S000100        0
074 T000100    57062
074 U010100     4822
074 U020100        0
074 V010100    11.83
074 V020100     0.00
074 W000100   0.0000
074 X000100       11
074 Y000100        0
<PAGE>      PAGE  6
075 A000100        0
075 B000100    53182
076  000100     0.00
028 A010200      3646
028 A020200         0
028 A030200         0
028 A040200       567
028 B010200      1042
028 B020200         0
028 B030200         0
028 B040200       169
028 C010200       201
028 C020200         0
028 C030200         0
028 C040200       117
028 D010200      2966
028 D020200         0
028 D030200         0
028 D040200        36
028 E010200      1199
028 E020200         0
028 E030200         0
028 E040200      7036
028 F010200      2007
028 F020200         0
028 F030200         0
028 F040200       117
028 G010200     11061
028 G020200         0
028 G030200         0
028 G040200      8042
028 H000200         0
055 A000200 N
055 B000200 N
056  000200 Y
057  000200 N
062 A000200 Y
062 B000200   0.0
062 C000200   0.0
062 D000200   0.8
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
<PAGE>      PAGE  7
062 P000200  91.8
062 Q000200   3.5
062 R000200   0.0
063 A000200   0
063 B000200 17.4
064 A000200 Y
064 B000200 N
071 A000200     19568
071 B000200     16278
071 C000200     94251
071 D000200   17
072 A000200  6
072 B000200     3815
072 C000200      220
072 D000200        0
072 E000200        0
072 F000200      239
072 G000200        0
072 H000200        0
072 I000200        9
072 J000200       41
072 K000200        0
072 L000200        1
072 M000200        1
072 N000200        0
072 O000200        0
072 P000200        0
072 Q000200       16
072 R000200        7
072 S000200        3
072 T000200        0
072 U000200        0
072 V000200        0
072 W000200        1
072 X000200      317
072 Y000200        5
072 Z000200     3723
072AA000200      687
072BB000200        6
072CC010200     1625
072CC020200        0
072DD010200        0
072DD020200        0
072EE000200        0
073 A010200   0.0000
073 A020200   0.0000
073 B000200   0.0000
073 C000200   0.0000
074 A000200        1
074 B000200      785
074 C000200        0
<PAGE>      PAGE  8
074 D000200    92523
074 E000200     3336
074 F000200      205
074 G000200        0
074 H000200        0
074 I000200        0
074 J000200        0
074 K000200        5
074 L000200     4185
074 M000200        0
074 N000200   101040
074 O000200        0
074 P000200      122
074 Q000200        0
074 R010200        0
074 R020200        0
074 R030200        0
074 R040200      124
074 S000200        0
074 T000200   100794
074 U010200     7846
074 U020200        0
074 V010200    12.50
074 V020200     0.00
074 W000200   0.0000
074 X000200       21
074 Y000200        0
075 A000200        0
075 B000200    96493
076  000200     0.00
028 A010300       860
028 A020300         8
028 A030300         0
028 A040300         0
028 B010300       501
028 B020300         9
028 B030300         0
028 B040300         0
028 C010300       320
028 C020300         9
028 C030300         0
028 C040300         0
028 D010300       106
028 D020300         9
028 D030300         0
028 D040300       716
028 E010300       458
028 E020300         9
028 E030300         0
028 E040300         0
028 F010300       105
<PAGE>      PAGE  9
028 F020300        10
028 F030300         0
028 F040300         0
028 G010300      2353
028 G020300        54
028 G030300         0
028 G040300       716
028 H000300         0
062 A000300 Y
062 B000300   0.0
062 C000300   0.0
062 D000300   0.0
062 E000300   0.0
062 F000300   0.0
062 G000300   0.0
062 H000300   0.0
062 I000300   0.0
062 J000300   0.0
062 K000300   0.0
062 L000300   0.0
062 M000300   0.0
062 N000300   3.3
062 O000300  94.7
062 P000300   0.0
062 Q000300   0.0
062 R000300   0.0
063 A000300   0
063 B000300  5.9
064 A000300 Y
064 B000300 N
071 A000300      4313
071 B000300      2261
071 C000300     14124
071 D000300   16
072 A000300  6
072 B000300      389
072 C000300        0
072 D000300        0
072 E000300        0
072 F000300       37
072 G000300        0
072 H000300        0
072 I000300       10
072 J000300       19
072 K000300        0
072 L000300        1
072 M000300        1
072 N000300        0
072 O000300        0
072 P000300        0
072 Q000300        8
<PAGE>      PAGE  10
072 R000300        6
072 S000300        4
072 T000300        0
072 U000300        0
072 V000300        0
072 W000300        0
072 X000300       86
072 Y000300       38
072 Z000300      341
072AA000300       25
072BB000300        0
072CC010300       23
072CC020300        0
072DD010300      331
072DD020300        0
072EE000300        0
073 A010300   0.2300
073 A020300   0.0000
073 B000300   0.0000
073 C000300   0.0000
074 A000300       77
074 B000300        0
074 C000300        0
074 D000300    14906
074 E000300        0
074 F000300        0
074 G000300        0
074 H000300        0
074 I000300        0
074 J000300        0
074 K000300       21
074 L000300      248
074 M000300        0
074 N000300    15252
074 O000300        0
074 P000300       19
074 Q000300        0
074 R010300        0
074 R020300        0
074 R030300        0
074 R040300       26
074 S000300        0
074 T000300    15207
074 U010300     1487
074 U020300        0
074 V010300    10.23
074 V020300     0.00
074 W000300   0.0000
074 X000300       30
074 Y000300        0
075 A000300        0
<PAGE>      PAGE  11
075 B000300    14757
076  000300     0.00
028 A010400         0
028 A020400         0
028 A030400         0
028 A040400         0
028 B010400         0
028 B020400         0
028 B030400         0
028 B040400         0
028 C010400         0
028 C020400         0
028 C030400         0
028 C040400         0
028 D010400         0
028 D020400         0
028 D030400         0
028 D040400         0
028 E010400         0
028 E020400         0
028 E030400         0
028 E040400         0
028 F010400         0
028 F020400      3100
028 F030400         0
028 F040400     99259
028 G010400         0
028 G020400      3100
028 G030400         0
028 G040400     99259
028 H000400         0
062 A000400 Y
062 B000400   0.0
062 C000400   0.0
062 D000400   0.0
062 E000400   0.0
062 F000400   0.0
062 G000400   0.0
062 H000400   0.0
062 I000400   0.0
062 J000400   0.0
062 K000400   0.0
062 L000400   0.0
062 M000400   0.0
062 N000400   0.0
062 O000400   0.0
062 P000400   0.0
062 Q000400   0.0
062 R000400   0.0
063 A000400   0
063 B000400  0.0
<PAGE>      PAGE  12
064 A000400 N
064 B000400 N
070 A010400 Y
070 A020400 Y
070 B010400 N
070 B020400 N
070 C010400 N
070 C020400 N
070 D010400 N
070 D020400 N
070 E010400 N
070 E020400 N
070 F010400 N
070 F020400 N
070 G010400 N
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 N
070 K010400 Y
070 K020400 N
070 L010400 Y
070 L020400 Y
070 M010400 N
070 M020400 N
070 N010400 N
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 N
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400      5156
071 B000400     97398
071 C000400     81756
071 D000400    6
072 A000400  6
072 B000400        0
072 C000400        0
072 D000400        0
072 E000400        0
072 F000400        0
072 G000400        0
072 H000400        0
072 I000400        0
<PAGE>      PAGE  13
072 J000400        0
072 K000400        0
072 L000400        0
072 M000400        0
072 N000400        0
072 O000400        0
072 P000400        0
072 Q000400        0
072 R000400        0
072 S000400        0
072 T000400        0
072 U000400        0
072 V000400        0
072 W000400        0
072 X000400        0
072 Y000400        0
072 Z000400        0
072AA000400        0
072BB000400        0
072CC010400        0
072CC020400        0
072DD010400        0
072DD020400        0
072EE000400        0
073 A010400   0.0000
073 A020400   0.0000
073 B000400   0.0000
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        0
074 J000400        0
074 K000400        0
074 L000400        0
074 M000400        0
074 N000400        0
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        0
<PAGE>      PAGE  14
074 U010400        0
074 U020400        0
074 V010400     0.00
074 V020400     0.00
074 W000400   0.0000
074 X000400        3
074 Y000400        0
075 A000400        0
075 B000400    97291
076  000400     0.00
028 A010500       800
028 A020500         0
028 A030500         0
028 A040500         0
028 B010500       800
028 B020500         0
028 B030500         0
028 B040500         0
028 C010500       917
028 C020500         0
028 C030500         0
028 C040500        74
028 D010500         0
028 D020500         0
028 D030500         0
028 D040500         0
028 E010500         0
028 E020500         0
028 E030500         0
028 E040500         0
028 F010500     10366
028 F020500         0
028 F030500         0
028 F040500         0
028 G010500     12883
028 G020500         0
028 G030500         0
028 G040500        74
028 H000500         0
062 A000500 N
062 B000500   0.0
062 C000500   0.0
062 D000500   0.0
062 E000500   0.0
062 F000500   0.0
062 G000500   0.0
062 H000500   0.0
062 I000500   0.0
062 J000500   0.0
062 K000500   0.0
062 L000500   0.0
<PAGE>      PAGE  15
062 M000500   0.0
062 N000500   0.0
062 O000500   0.0
062 P000500   0.0
062 Q000500   0.0
062 R000500   0.0
071 A000500     23002
071 B000500     10679
071 C000500     25460
071 D000500   42
072 A000500  6
072 B000500       34
072 C000500      163
072 D000500        0
072 E000500        0
072 F000500       63
072 G000500        0
072 H000500        0
072 I000500        6
072 J000500       14
072 K000500        0
072 L000500        1
072 M000500        1
072 N000500        0
072 O000500        0
072 P000500        0
072 Q000500        6
072 R000500        6
072 S000500        3
072 T000500        0
072 U000500        0
072 V000500        0
072 W000500        1
072 X000500      100
072 Y000500       18
072 Z000500      115
072AA000500     1272
072BB000500        0
072CC010500     1724
072CC020500        0
072DD010500        0
072DD020500        0
072EE000500        0
073 A010500   0.0000
073 A020500   0.0000
073 B000500   0.0000
073 C000500   0.0000
074 A000500        1
074 B000500     1108
074 C000500        0
074 D000500        0
<PAGE>      PAGE  16
074 E000500        0
074 F000500    36355
074 G000500        0
074 H000500        0
074 I000500        0
074 J000500    10364
074 K000500        8
074 L000500       11
074 M000500        2
074 N000500    47849
074 O000500     9972
074 P000500       33
074 Q000500        0
074 R010500        0
074 R020500        0
074 R030500        0
074 R040500       17
074 S000500        0
074 T000500    37827
074 U010500     2912
074 U020500        0
074 V010500    12.99
074 V020500     0.00
074 W000500   0.0000
074 X000500        8
074 Y000500        0
075 A000500        0
075 B000500    25452
076  000500     0.00
028 A010600         0
028 A020600         0
028 A030600         0
028 A040600         0
028 B010600         0
028 B020600         0
028 B030600         0
028 B040600         0
028 C010600         0
028 C020600         0
028 C030600         0
028 C040600         0
028 D010600       101
028 D020600         0
028 D030600         0
028 D040600         0
028 E010600      1080
028 E020600         0
028 E030600         0
028 E040600         0
028 F010600         0
028 F020600         0
<PAGE>      PAGE  17
028 F030600         0
028 F040600         0
028 G010600      1181
028 G020600         0
028 G030600         0
028 G040600         0
028 H000600         0
062 A000600 Y
062 B000600   0.0
062 C000600   0.0
062 D000600   0.0
062 E000600   0.0
062 F000600   0.0
062 G000600   0.0
062 H000600   0.0
062 I000600   0.0
062 J000600   0.0
062 K000600   0.0
062 L000600   0.0
062 M000600  21.3
062 N000600  15.1
062 O000600   0.0
062 P000600  61.0
062 Q000600   0.0
062 R000600   0.0
070 A010600 Y
070 A020600 Y
070 B010600 N
070 B020600 N
070 C010600 N
070 C020600 N
070 D010600 N
070 D020600 N
070 E010600 N
070 E020600 N
070 F010600 N
070 F020600 N
070 G010600 N
070 G020600 N
070 H010600 N
070 H020600 N
070 I010600 N
070 I020600 N
070 J010600 Y
070 J020600 N
070 K010600 Y
070 K020600 N
070 L010600 Y
070 L020600 Y
070 M010600 N
070 M020600 N
<PAGE>      PAGE  18
070 N010600 N
070 N020600 N
070 O010600 Y
070 O020600 N
070 P010600 N
070 P020600 N
070 Q010600 N
070 Q020600 N
070 R010600 N
070 R020600 N
071 A000600      4207
071 B000600      2829
071 C000600      6464
071 D000600   44
072 A000600  6
072 B000600      240
072 C000600        0
072 D000600        0
072 E000600        0
072 F000600       16
072 G000600        0
072 H000600        0
072 I000600        4
072 J000600       22
072 K000600        0
072 L000600        1
072 M000600        1
072 N000600        0
072 O000600        0
072 P000600        0
072 Q000600        4
072 R000600        5
072 S000600        3
072 T000600        0
072 U000600        1
072 V000600        0
072 W000600        0
072 X000600       57
072 Y000600       35
072 Z000600      218
072AA000600       16
072BB000600        0
072CC010600        0
072CC020600       50
072DD010600        0
072DD020600        0
072EE000600        0
073 A010600   0.0000
073 A020600   0.0000
073 B000600   0.0000
073 C000600   0.0000
<PAGE>      PAGE  19
074 A000600       60
074 B000600        0
074 C000600        0
074 D000600     7435
074 E000600        0
074 F000600        0
074 G000600        0
074 H000600        0
074 I000600        0
074 J000600        0
074 K000600       13
074 L000600      153
074 M000600        9
074 N000600     7670
074 O000600        0
074 P000600        9
074 Q000600        0
074 R010600        0
074 R020600        0
074 R030600        0
074 R040600       25
074 S000600        0
074 T000600     7636
074 U010600      734
074 U020600        0
074 V010600    10.40
074 V020600     0.00
074 W000600   0.0000
074 X000600        6
074 Y000600        0
075 A000600        0
075 B000600     6624
076  000600     0.00
028 A010700         0
028 A020700         0
028 A030700         0
028 A040700         0
028 B010700     10000
028 B020700         0
028 B030700         0
028 B040700         0
028 C010700         0
028 C020700         0
028 C030700         0
028 C040700         0
028 D010700      2500
028 D020700         0
028 D030700         0
028 D040700         0
028 E010700      6300
028 E020700         0
<PAGE>      PAGE  20
028 E030700         0
028 E040700         0
028 F010700      2500
028 F020700         0
028 F030700         0
028 F040700         0
028 G010700     21300
028 G020700         0
028 G030700         0
028 G040700         0
028 H000700         0
062 A000700 Y
062 B000700   0.0
062 C000700   0.0
062 D000700  17.3
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  81.7
062 Q000700   7.0
062 R000700   0.0
063 A000700   0
063 B000700 13.0
064 A000700 N
064 B000700 N
071 A000700     24661
071 B000700      6023
071 C000700     11913
071 D000700   51
072 A000700  6
072 B000700      562
072 C000700       40
072 D000700        0
072 E000700        0
072 F000700       38
072 G000700        0
072 H000700        0
072 I000700        4
072 J000700       13
072 K000700        0
072 L000700        0
072 M000700        1
072 N000700        0
<PAGE>      PAGE  21
072 O000700        0
072 P000700        0
072 Q000700        5
072 R000700        6
072 S000700        3
072 T000700        0
072 U000700        0
072 V000700        0
072 W000700        0
072 X000700       47
072 Y000700       23
072 Z000700      555
072AA000700       49
072BB000700        0
072CC010700      151
072CC020700        0
072DD010700        0
072DD020700        0
072EE000700        0
073 A010700   0.0000
073 A020700   0.0000
073 B000700   0.0000
073 C000700   0.0000
074 A000700        0
074 B000700     4350
074 C000700        0
074 D000700    20562
074 E000700     1143
074 F000700      602
074 G000700        0
074 H000700        0
074 I000700        0
074 J000700      240
074 K000700       12
074 L000700      299
074 M000700        0
074 N000700    27208
074 O000700     2008
074 P000700       27
074 Q000700        0
074 R010700        0
074 R020700        0
074 R030700        0
074 R040700       18
074 S000700        0
074 T000700    25155
074 U010700     2375
074 U020700        0
074 V010700    10.59
074 V020700     0.00
074 W000700   0.0000
<PAGE>      PAGE  22
074 X000700        4
074 Y000700        0
075 A000700        0
075 B000700    12701
076  000700     0.00
028 A010800         0
028 A020800         0
028 A030800         0
028 A040800         0
028 B010800         0
028 B020800         0
028 B030800         0
028 B040800         0
028 C010800         0
028 C020800         0
028 C030800         0
028 C040800         0
028 D010800         0
028 D020800         0
028 D030800         0
028 D040800         0
028 E010800         0
028 E020800         0
028 E030800         0
028 E040800         0
028 F010800         0
028 F020800         0
028 F030800         0
028 F040800         0
028 G010800         0
028 G020800         0
028 G030800         0
028 G040800         0
028 H000800         0
062 A000800 Y
062 B000800   0.0
062 C000800   0.0
062 D000800   1.8
062 E000800   0.0
062 F000800   0.0
062 G000800   0.0
062 H000800   0.0
062 I000800   0.0
062 J000800   0.0
062 K000800   0.0
062 L000800   0.0
062 M000800   4.6
062 N000800   0.0
062 O000800   0.0
062 P000800  84.4
062 Q000800   8.7
<PAGE>      PAGE  23
062 R000800   0.0
063 A000800   0
063 B000800 11.0
064 A000800 N
064 B000800 N
071 A000800      2784
071 B000800      2545
071 C000800      7712
071 D000800   33
072 A000800  6
072 B000800      341
072 C000800       27
072 D000800        0
072 E000800        0
072 F000800       20
072 G000800        0
072 H000800        0
072 I000800        4
072 J000800       15
072 K000800        0
072 L000800        1
072 M000800        1
072 N000800        0
072 O000800        0
072 P000800        0
072 Q000800        3
072 R000800        6
072 S000800        2
072 T000800        0
072 U000800        0
072 V000800        0
072 W000800        0
072 X000800       52
072 Y000800       26
072 Z000800      342
072AA000800      176
072BB000800       11
072CC010800       52
072CC020800        0
072DD010800        0
072DD020800        0
072EE000800        0
073 A010800   0.0000
073 A020800   0.0000
073 B000800   0.0000
073 C000800   0.0000
074 A000800        1
074 B000800      150
074 C000800        0
074 D000800     7396
074 E000800      661
<PAGE>      PAGE  24
074 F000800       56
074 G000800        0
074 H000800        0
074 I000800        0
074 J000800       97
074 K000800       13
074 L000800      137
074 M000800        0
074 N000800     8511
074 O000800      176
074 P000800       10
074 Q000800        0
074 R010800        0
074 R020800        0
074 R030800        0
074 R040800       16
074 S000800        0
074 T000800     8309
074 U010800      763
074 U020800        0
074 V010800    10.89
074 V020800     0.00
074 W000800   0.0000
074 X000800        4
074 Y000800        0
075 A000800        0
075 B000800     8020
076  000800     0.00
028 A010900         0
028 A020900         0
028 A030900         0
028 A040900         0
028 B010900         0
028 B020900         0
028 B030900         0
028 B040900         0
028 C010900         0
028 C020900         0
028 C030900         0
028 C040900         0
028 D010900         0
028 D020900         0
028 D030900         0
028 D040900         0
028 E010900         0
028 E020900         0
028 E030900         0
028 E040900         0
028 F010900         0
028 F020900         0
028 F030900         0
<PAGE>      PAGE  25
028 F040900         0
028 G010900         0
028 G020900         0
028 G030900         0
028 G040900         0
028 H000900         0
062 A000900 Y
062 B000900   0.0
062 C000900   0.0
062 D000900   0.0
062 E000900   0.0
062 F000900   0.0
062 G000900   0.0
062 H000900   0.0
062 I000900   0.0
062 J000900   0.0
062 K000900   0.0
062 L000900   0.0
062 M000900   0.0
062 N000900   0.0
062 O000900   0.0
062 P000900   0.0
062 Q000900   0.0
062 R000900   0.0
071 A000900         0
071 B000900         0
071 C000900         0
071 D000900    0
072 A000900  6
072 B000900        0
072 C000900        0
072 D000900        0
072 E000900        0
072 F000900        0
072 G000900        0
072 H000900        0
072 Y000900        0
072 Z000900        0
072AA000900        0
072BB000900        0
072CC010900        0
072CC020900        0
072DD010900        0
072DD020900        0
072EE000900        0
073 A010900   0.0000
073 A020900   0.0000
073 B000900   0.0000
073 C000900   0.0000
074 A000900        0
074 B000900        0
<PAGE>      PAGE  26
074 C000900        0
074 D000900        0
074 E000900        0
074 F000900        0
074 G000900        0
074 H000900        0
074 I000900        0
074 J000900        0
074 K000900        0
074 L000900        0
074 M000900        0
074 N000900        0
074 O000900        0
074 P000900        0
074 Q000900        0
074 R010900        0
074 R020900        0
074 R030900        0
074 R040900        0
074 S000900        0
074 T000900        0
074 U010900        1
074 U020900        0
074 V010900    10.00
074 V020900     0.00
074 W000900   0.0000
074 X000900        1
074 Y000900        0
075 A000900        0
075 B000900        0
076  000900     0.00
SIGNATURE   VENETTA PHILLIPS                             
TITLE       REPORTING ADMIN     
 

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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 02
   <NAME> LSIT FIXED INCOME FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         92334780
<INVESTMENTS-AT-VALUE>                        96848743
<RECEIVABLES>                                  4184837
<ASSETS-OTHER>                                    6108
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               101039688
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       246068
<TOTAL-LIABILITIES>                             246068
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      90004755
<SHARES-COMMON-STOCK>                          7845502
<SHARES-COMMON-PRIOR>                          7595471
<ACCUMULATED-NII-CURRENT>                      3964681
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        2311596
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       4512588
<NET-ASSETS>                                 100793620
<DIVIDEND-INCOME>                               219573
<INTEREST-INCOME>                              3814950
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (311125)
<NET-INVESTMENT-INCOME>                        3723396
<REALIZED-GAINS-CURRENT>                        680376
<APPREC-INCREASE-CURRENT>                      1624665
<NET-CHANGE-FROM-OPS>                          6028439
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         900051
<NUMBER-OF-SHARES-REDEEMED>                   (650020)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         9047611
<ACCUMULATED-NII-PRIOR>                         241283
<ACCUMULATED-GAINS-PRIOR>                      1631220
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           239326  
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 316590
<AVERAGE-NET-ASSETS>                          96523761
<PER-SHARE-NAV-BEGIN>                            12.08
<PER-SHARE-NII>                                   0.47
<PER-SHARE-GAIN-APPREC>                           0.30
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.85
<EXPENSE-RATIO>                                   0.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 01
   <NAME> LSIT INVESTMENT GRADE FIXED INCOME
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         54160304
<INVESTMENTS-AT-VALUE>                        55946735
<RECEIVABLES>                                  1099312
<ASSETS-OTHER>                                  100071
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                57146118
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        84211
<TOTAL-LIABILITIES>                              84211
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      54951038
<SHARES-COMMON-STOCK>                          4822155
<SHARES-COMMON-PRIOR>                          4382595
<ACCUMULATED-NII-CURRENT>                        19050
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         305973
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       1785846
<NET-ASSETS>                                  57061907
<DIVIDEND-INCOME>                                52980
<INTEREST-INCOME>                              1982657
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (145016)
<NET-INVESTMENT-INCOME>                        1890621
<REALIZED-GAINS-CURRENT>                        110156
<APPREC-INCREASE-CURRENT>                       107736
<NET-CHANGE-FROM-OPS>                          2108513
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (1915230)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         345615
<NUMBER-OF-SHARES-REDEEMED>                    (32217)
<SHARES-REINVESTED>                             126162
<NET-CHANGE-IN-ASSETS>                         5310157
<ACCUMULATED-NII-PRIOR>                          43660
<ACCUMULATED-GAINS-PRIOR>                       195817
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           105470
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 164537
<AVERAGE-NET-ASSETS>                          53172075
<PER-SHARE-NAV-BEGIN>                            11.81
<PER-SHARE-NII>                                   0.41
<PER-SHARE-GAIN-APPREC>                           0.03
<PER-SHARE-DIVIDEND>                            (0.42)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              11.83
<EXPENSE-RATIO>                                   0.55
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> LSIT CALIFORNIA TAX FREE INCOME FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         14709598
<INVESTMENTS-AT-VALUE>                        14906016
<RECEIVABLES>                                   247918
<ASSETS-OTHER>                                   98109
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                15252043
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        44951
<TOTAL-LIABILITIES>                              44951
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      14958473
<SHARES-COMMON-STOCK>                          1486797
<SHARES-COMMON-PRIOR>                          1321332
<ACCUMULATED-NII-CURRENT>                        18703
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          33498
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        196418
<NET-ASSETS>                                  15207092
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               388670
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (47592)
<NET-INVESTMENT-INCOME>                         341078
<REALIZED-GAINS-CURRENT>                         24914
<APPREC-INCREASE-CURRENT>                        23091
<NET-CHANGE-FROM-OPS>                           389083
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (331448)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         231252
<NUMBER-OF-SHARES-REDEEMED>                    (71075)
<SHARES-REINVESTED>                               5288
<NET-CHANGE-IN-ASSETS>                         1747554
<ACCUMULATED-NII-PRIOR>                           9074
<ACCUMULATED-GAINS-PRIOR>                         8583
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            18709
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                          14756618
<PER-SHARE-NAV-BEGIN>                            10.19
<PER-SHARE-NII>                                    .23
<PER-SHARE-GAIN-APPREC>                            .04
<PER-SHARE-DIVIDEND>                            (0.23)
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.23
<EXPENSE-RATIO>                                   0.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 04
   <NAME> LSIT MORTGAGE SECURITIES FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                        0
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                       0
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                            0
<TOTAL-LIABILITIES>                                  0
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                             0
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                          9447961
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                         0
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              3117175
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  236443
<NET-INVESTMENT-INCOME>                        2880732
<REALIZED-GAINS-CURRENT>                       1370742
<APPREC-INCREASE-CURRENT>                      (469263)
<NET-CHANGE-FROM-OPS>                          3782211
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (3100170)
<DISTRIBUTIONS-OF-GAINS>                     (1208130)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                  (9758287)
<SHARES-REINVESTED>                             310326
<NET-CHANGE-IN-ASSETS>                        96598201
<ACCUMULATED-NII-PRIOR>                         134882
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                     (79587)
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                                 0
<PER-SHARE-NAV-BEGIN>                            10.22
<PER-SHARE-NII>                                   0.00
<PER-SHARE-GAIN-APPREC>                           0.00
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                       (0.47)
<RETURNS-OF-CAPITAL>                             (9.75)
<PER-SHARE-NAV-END>                               0.00
<EXPENSE-RATIO>                                   0.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 05
   <NAME> LSIT CORE GROWTH FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         32803558
<INVESTMENTS-AT-VALUE>                        37463001
<RECEIVABLES>                                 10374681
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                             11107
<TOTAL-ASSETS>                                47848789
<PAYABLE-FOR-SECURITIES>                       9971635
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        50377
<TOTAL-LIABILITIES>                           10022012
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      32261290
<SHARES-COMMON-STOCK>                          2911873
<SHARES-COMMON-PRIOR>                          1908352
<ACCUMULATED-NII-CURRENT>                       116427
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         789617
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       4659443
<NET-ASSETS>                                  37826777
<DIVIDEND-INCOME>                               163312
<INTEREST-INCOME>                                33369
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (82086)
<NET-INVESTMENT-INCOME>                         114595
<REALIZED-GAINS-CURRENT>                       1272394
<APPREC-INCREASE-CURRENT>                      1724305
<NET-CHANGE-FROM-OPS>                          3111294
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1009678
<NUMBER-OF-SHARES-REDEEMED>                     (6157)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        15920737
<ACCUMULATED-NII-PRIOR>                           1831
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                    (482777)
<GROSS-ADVISORY-FEES>                            63142
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                          25466309
<PER-SHARE-NAV-BEGIN>                            11.48
<PER-SHARE-NII>                                   0.04
<PER-SHARE-GAIN-APPREC>                           1.47
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.99
<EXPENSE-RATIO>                                   0.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 08
   <NAME> LSIT CONVERTIBLE BOND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          8210420
<INVESTMENTS-AT-VALUE>                         8263234
<RECEIVABLES>                                   233471
<ASSETS-OTHER>                                   14065
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 8510770
<PAYABLE-FOR-SECURITIES>                        175838
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        26320
<TOTAL-LIABILITIES>                             202158
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       7685336
<SHARES-COMMON-STOCK>                           763014
<SHARES-COMMON-PRIOR>                           763014
<ACCUMULATED-NII-CURRENT>                       344300
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         226162
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         52814
<NET-ASSETS>                                   8308612
<DIVIDEND-INCOME>                                26744
<INTEREST-INCOME>                               340794
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (25852)
<NET-INVESTMENT-INCOME>                         341686
<REALIZED-GAINS-CURRENT>                        174520
<APPREC-INCREASE-CURRENT>                        52435
<NET-CHANGE-FROM-OPS>                           568641
<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>                          568641
<ACCUMULATED-NII-PRIOR>                           2614
<ACCUMULATED-GAINS-PRIOR>                        51642
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            19890
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  51863
<AVERAGE-NET-ASSETS>                           8021845
<PER-SHARE-NAV-BEGIN>                            10.14
<PER-SHARE-NII>                                   0.45
<PER-SHARE-GAIN-APPREC>                           0.30
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.89
<EXPENSE-RATIO>                                   0.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT FUND
<SERIES>
   <NUMBER> 07
   <NAME> LSIT HIGH YIELD FIXED INCOME
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                         26459783
<INVESTMENTS-AT-VALUE>                        26657172
<RECEIVABLES>                                   538833
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                             12034
<TOTAL-ASSETS>                                27208039
<PAYABLE-FOR-SECURITIES>                       2007854
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        44921
<TOTAL-LIABILITIES>                            2052775
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      24353468
<SHARES-COMMON-STOCK>                          2374937
<SHARES-COMMON-PRIOR>                           305041
<ACCUMULATED-NII-CURRENT>                       554993
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          49417
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        197386
<NET-ASSETS>                                  25155264
<DIVIDEND-INCOME>                                40625
<INTEREST-INCOME>                               561802
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (47434)  
<NET-INVESTMENT-INCOME>                         554993
<REALIZED-GAINS-CURRENT>                         49417
<APPREC-INCREASE-CURRENT>                       150443
<NET-CHANGE-FROM-OPS>                           754853
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        2069896
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        22054853
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            37948
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  70391
<AVERAGE-NET-ASSETS>                          12754022
<PER-SHARE-NAV-BEGIN>                            10.16
<PER-SHARE-NII>                                   0.23
<PER-SHARE-GAIN-APPREC>                           0.20
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.59
<EXPENSE-RATIO>                                   0.75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000917469
<NAME> LOOMIS SAYLES INVESTMENT TRUST
<SERIES>
   <NUMBER> 06
   <NAME> LSIT CORE FIXED INCOME FUND
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                          7396260
<INVESTMENTS-AT-VALUE>                         7434638
<RECEIVABLES>                                   153254
<ASSETS-OTHER>                                   81641
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 7669533
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        33978
<TOTAL-LIABILITIES>                              33978
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       7365092
<SHARES-COMMON-STOCK>                           733932
<SHARES-COMMON-PRIOR>                           618421
<ACCUMULATED-NII-CURRENT>                       220295
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          11790
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         38378
<NET-ASSETS>                                   7635555
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               239615
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (21351)
<NET-INVESTMENT-INCOME>                         218264
<REALIZED-GAINS-CURRENT>                         15412
<APPREC-INCREASE-CURRENT>                      (49995)
<NET-CHANGE-FROM-OPS>                           183681
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         115511
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         1364745
<ACCUMULATED-NII-PRIOR>                           2031
<ACCUMULATED-GAINS-PRIOR>                            0 
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                      (3622)  
<GROSS-ADVISORY-FEES>                            16423
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                           6623772
<PER-SHARE-NAV-BEGIN>                            10.14
<PER-SHARE-NII>                                    .29
<PER-SHARE-GAIN-APPREC>                         (0.03)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.40
<EXPENSE-RATIO>                                   0.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission