CALVERT SOCIAL INVESTMENT FUND
NSAR-A, 1998-05-22
Previous: COMPUTER ASSOCIATES INTERNATIONAL INC, 10-K, 1998-05-22
Next: ABIGAIL ADAMS NATIONAL BANCORP INC, 8-K, 1998-05-22



<PAGE>      PAGE  1
000 A000000 03/31/98
000 C000000 0000356682
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 CALVERT SOCIAL INVESTMENT FUND
001 B000000 811-3334
001 C000000 3019514881
002 A000000 4550 MONTGOMERY AVE., SUITE 1000N
002 B000000 BETHESDA
002 C000000 MD
002 D010000 20814
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  4
007 C010100  1
007 C020100 MONEY MARKET PORTFOLIO
007 C030100 N
007 C010200  2
007 C020200 MANAGED GROWTH PORTFOLIO
007 C030200 N
007 C010300  3
007 C020300 BOND PORTFOLIO
007 C030300 N
007 C010400  4
007 C020400 EQUITY PORTFOLIO
007 C030400 N
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
007 C011100 11
007 C011200 12
007 C011300 13
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
007 C012100 21
<PAGE>      PAGE  2
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
011 A00AA01 CALVERT DISTRIBUTORS, INC.
011 B00AA01 8-47915
011 C01AA01 BETHESDA
011 C02AA01 MD
011 C03AA01 20814
013 A00AA01 COOPERS & LYBRAND
013 B01AA01 BALTIMORE
013 B02AA01 MD
013 B03AA01 21202
020 A000001 INSTINET
020 C000001     69
020 A000002 COWEN & CO
<PAGE>      PAGE  3
020 C000002     63
020 A000003 BEAR STEARNS SECURITIES CORP.
020 C000003     42
020 A000004 PAINE WEBBER INC.
020 C000004     39
020 A000005 MORGAN KEEGAN & CO., INC.
020 C000005     27
020 A000006 DONALDSON LUFKIN & JENRETTE SECURITIES CORP.
020 C000006     25
020 A000007 CAPITAL INSTITUTIONAL SERVICES, INC.
020 C000007     24
020 A000008 LIPPER ANALYTICAL SECURITIES, INC.
020 C000008     23
020 A000009 AUTRANET, INC.
020 C000009     21
020 A000010 JOHNSTON, LEMON & CO.
020 C000010     15
021  000000      510
022 A000001 DONALDSON LUFKIN
022 C000001   3471417
022 D000001     46272
022 A000002 STATE STREET BANK
022 C000002    587600
022 D000002         0
022 A000003 MERRILL LYNCH PIERCE
022 C000003    106247
022 D000003    112247
022 A000004 UBS SECURITIES INC.
022 C000004    144081
022 D000004      3978
022 A000005 GOLDMAN SACHS & CO
022 C000005     84919
022 D000005     63060
022 A000006 SALOMON SMITH BARNEY HOLDINGS
022 C000006     73883
022 D000006     73080
022 A000007 LEHMAN BROS INC.
022 C000007     62689
022 D000007     56318
022 A000008 PAINE WEBBER INCORPORATED
022 C000008     99289
022 D000008     13910
022 A000009 CHASE SECURITIES
022 C000009     52224
022 D000009     47486
022 A000010 DEAN WITTER REYNOLDS
022 C000010     26517
022 D000010     32479
023 C000000    5131411
023 D000000     801870
025 D00AA01       0
<PAGE>      PAGE  4
025 D00AA02       0
025 D00AA03       0
025 D00AA04       0
025 D00AA05       0
025 D00AA06       0
025 D00AA07       0
025 D00AA08       0
027  000000 Y
045  000000 Y
046  000000 N
047  000000 Y
048  000000  0.700
048 A010000        0
048 A020000 0.000
048 B010000        0
048 B020000 0.000
048 C010000        0
048 C020000 0.000
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
048 J020000 0.000
048 K010000        0
048 K020000 0.000
055 A00AA00 N
055 B00AA00 N
056  00AA00 N
057  00AA00 N
077 A000000 N
078  000000 N
080 A00AA00 ICI MUTUAL INSURANCE COMPANY
080 C00AA00     8000
081 A00AA00 Y
081 B00AA00  37
082 A00AA00 N
082 B00AA00        0
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
<PAGE>      PAGE  5
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
028 A010100     17696
028 A020100       641
028 A030100         0
028 A040100     14838
028 B010100      8537
028 B020100       548
028 B030100         0
028 B040100     11607
028 C010100     12959
028 C020100       779
028 C030100         0
028 C040100     13875
028 D010100     14694
028 D020100       634
028 D030100         0
028 D040100     12071
028 E010100     11406
028 E020100       613
028 E030100         0
028 E040100     11055
028 F010100     14072
028 F020100       695
028 F030100         0
028 F040100     12655
028 G010100     79364
028 G020100      3910
028 G030100         0
028 G040100     76101
028 H000100     79364
030 A000100      0
030 B000100  0.00
030 C000100  0.00
031 A000100      0
031 B000100      0
032  000100      0
033  000100      0
042 A000100   0
042 B000100   0
042 C000100   0
042 D000100   0
042 E000100   0
042 F000100   0
042 G000100   0
042 H000100   0
<PAGE>      PAGE  6
043  000100      0
044  000100      0
045  000100 Y
048  000100  0.50
048 A010100        0
048 A020100 0.000
048 B010100        0
048 B020100 0.000
048 C010100        0
048 C020100 0.000
048 D010100        0
048 D020100 0.000
048 E010100        0
048 E020100 0.000
048 F010100        0
048 F020100 0.000
048 G010100        0
048 G020100 0.000
048 H010100        0
048 H020100 0.000
048 I010100        0
048 I020100 0.000
048 J010100        0
048 J020100 0.000
048 K010100        0
048 K020100 0.000
062 A000100 Y
062 B000100   0.0
062 C000100  12.1
062 D000100  15.8
062 E000100   0.0
062 F000100   3.6
062 G000100   0.0
062 H000100   0.0
062 I000100  12.3
062 J000100   0.0
062 K000100   0.0
062 L000100  54.8
062 M000100   0.0
062 N000100   0.0
062 O000100   0.0
062 P000100   0.0
062 Q000100   0.0
062 R000100   0.0
063 A000100  23
063 B000100  0.0
066 A000100 N
067  000100 N
068 A000100 N
068 B000100 N
069  000100 N
<PAGE>      PAGE  7
070 A010100 Y
070 A020100 Y
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 N
070 J020100 N
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
070 M010100 N
070 M020100 N
070 N010100 N
070 N020100 N
070 O010100 N
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100         0
071 B000100         0
071 C000100         0
071 D000100    0
072 A000100  6
072 B000100     4894
072 C000100        0
072 D000100        0
072 E000100        0
072 F000100      419
072 G000100        0
072 H000100        0
072 I000100      245
072 J000100       12
072 K000100       16
<PAGE>      PAGE  8
072 L000100       29
072 M000100       23
072 N000100       16
072 O000100        0
072 P000100        0
072 Q000100        0
072 R000100        4
072 S000100        3
072 T000100        0
072 U000100        0
072 V000100        0
072 W000100       43
072 X000100      810
072 Y000100       77
072 Z000100     4161
072AA000100       80
072BB000100        0
072CC010100        0
072CC020100        0
072DD010100     4150
072DD020100        0
072EE000100        0
073 A010100   0.0250
073 A020100   0.0000
073 B000100   0.0000
073 C000100   0.0000
074 A000100      138
074 B000100    27500
074 C000100   137153
074 D000100        0
074 E000100        0
074 F000100        0
074 G000100        0
074 H000100        0
074 I000100     6199
074 J000100     1440
074 K000100        0
074 L000100     1258
074 M000100       18
074 N000100   173706
074 O000100        0
074 P000100      109
074 Q000100        0
074 R010100        0
074 R020100        0
074 R030100        0
074 R040100      299
074 S000100        0
074 T000100   173298
074 U010100   173338
074 U020100        0
<PAGE>      PAGE  9
074 V010100     1.00
074 V020100     0.00
074 W000100   0.9999
074 X000100    11917
074 Y000100        0
075 A000100   167903
075 B000100        0
076  000100     0.00
083 A000100 N
083 B000100        0
084 A000100 N
084 B000100        0
085 A000100 Y
085 B000100 N
028 A010200      5569
028 A020200         0
028 A030200         0
028 A040200      7690
028 B010200      4675
028 B020200         0
028 B030200         0
028 B040200      5501
028 C010200      7211
028 C020200     64520
028 C030200         0
028 C040200     20768
028 D010200      6198
028 D020200         0
028 D030200         0
028 D040200      5674
028 E010200      5538
028 E020200         0
028 E030200         0
028 E040200      8362
028 F010200      7155
028 F020200      3255
028 F030200         0
028 F040200      7699
028 G010200     36346
028 G020200     67775
028 G030200         0
028 G040200     55694
028 H000200     36346
029  000200 Y
030 A000200    734
030 B000200  4.75
030 C000200  0.00
031 A000200    157
031 B000200      0
032  000200    492
033  000200     85
<PAGE>      PAGE  10
042 A000200  20
042 B000200  12
042 C000200  11
042 D000200  52
042 E000200   5
042 F000200   0
042 G000200   0
042 H000200   0
043  000200    848
044  000200      0
045  000200 Y
048  000200  0.70
048 A010200        0
048 A020200 0.000
048 B010200        0
048 B020200 0.000
048 C010200        0
048 C020200 0.000
048 D010200        0
048 D020200 0.000
048 E010200        0
048 E020200 0.000
048 F010200        0
048 F020200 0.000
048 G010200        0
048 G020200 0.000
048 H010200        0
048 H020200 0.000
048 I010200        0
048 I020200 0.000
048 J010200        0
048 J020200 0.000
048 K010200        0
048 K020200 0.000
062 A000200 Y
062 B000200   0.0
062 C000200   0.0
062 D000200   2.2
062 E000200   0.0
062 F000200   0.1
062 G000200   0.0
062 H000200   0.0
062 I000200   0.0
062 J000200   0.0
062 K000200   0.0
062 L000200   0.7
062 M000200   0.0
062 N000200   0.0
062 O000200   2.3
062 P000200  32.9
062 Q000200   0.5
<PAGE>      PAGE  11
062 R000200  61.9
063 A000200   0
063 B000200 11.0
066 A000200 Y
066 G000200 Y
067  000200 N
068 A000200 N
068 B000200 N
069  000200 N
070 A010200 Y
070 A020200 Y
070 B010200 Y
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 Y
070 E020200 N
070 F010200 Y
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 Y
070 K010200 Y
070 K020200 N
070 L010200 Y
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 N
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 Y
070 R020200 N
071 A000200    556397
071 B000200    563442
071 C000200    641890
071 D000200   87
072 A000200  6
072 B000200     9719
<PAGE>      PAGE  12
072 C000200     1519
072 D000200        0
072 E000200        0
072 F000200     2048
072 G000200        0
072 H000200        0
072 I000200      434
072 J000200       65
072 K000200       49
072 L000200       57
072 M000200      103
072 N000200       27
072 O000200        0
072 P000200        0
072 Q000200        0
072 R000200       83
072 S000200       51
072 T000200      848
072 U000200        0
072 V000200        0
072 W000200      134
072 X000200     3899
072 Y000200      100
072 Z000200     7439
072AA000200    31600
072BB000200        0
072CC010200    30393
072CC020200        0
072DD010200     7408
072DD020200       59
072EE000200    65637
073 A010200   0.3700
073 A020200   0.2000
073 B000200   3.3600
073 C000200   3.3600
074 A000200        0
074 B000200    16200
074 C000200      904
074 D000200   260693
074 E000200        0
074 F000200   451026
074 G000200        0
074 H000200        0
074 I000200     4574
074 J000200    11066
074 K000200        0
074 L000200     5021
074 M000200       34
074 N000200   749518
074 O000200    16245
074 P000200      627
<PAGE>      PAGE  13
074 Q000200        0
074 R010200        0
074 R020200        0
074 R030200        0
074 R040200     3666
074 S000200        0
074 T000200   728980
074 U010200    20887
074 U020200      330
074 V010200    34.37
074 V020200    33.96
074 W000200   0.0000
074 X000200    36583
074 Y000200        0
075 A000200        0
075 B000200   681463
076  000200     0.00
083 A000200 N
083 B000200        0
084 A000200 N
084 B000200        0
085 A000200 Y
085 B000200 N
028 A010300       794
028 A020300       247
028 A030300         0
028 A040300      1103
028 B010300       850
028 B020300       233
028 B030300         0
028 B040300       500
028 C010300      1185
028 C020300       252
028 C030300         0
028 C040300       756
028 D010300      1250
028 D020300       712
028 D030300         0
028 D040300      1161
028 E010300      1691
028 E020300       236
028 E030300         0
028 E040300       814
028 F010300       949
028 F020300       193
028 F030300         0
028 F040300      1582
028 G010300      6719
028 G020300      1873
028 G030300         0
028 G040300      5916
<PAGE>      PAGE  14
028 H000300      6719
029  000300 Y
030 A000300    125
030 B000300  3.75
030 C000300  0.00
031 A000300     30
031 B000300      0
032  000300     86
033  000300      9
042 A000300  16
042 B000300  12
042 C000300  10
042 D000300  54
042 E000300   7
042 F000300   0
042 G000300   0
042 H000300   0
043  000300     61
044  000300      0
045  000300 Y
048  000300  0.700
048 A010300        0
048 A020300 0.000
048 B010300        0
048 B020300 0.000
048 C010300        0
048 C020300 0.000
048 D010300        0
048 D020300 0.000
048 E010300        0
048 E020300 0.000
048 F010300        0
048 F020300 0.000
048 G010300        0
048 G020300 0.000
048 H010300        0
048 H020300 0.000
048 I010300        0
048 I020300 0.000
048 J010300        0
048 J020300 0.000
048 K010300        0
048 K020300 0.000
062 A000300 Y
062 B000300   0.0
062 C000300   0.0
062 D000300   1.6
062 E000300   0.0
062 F000300   0.0
062 G000300   0.0
062 H000300   0.0
<PAGE>      PAGE  15
062 I000300   0.0
062 J000300   0.0
062 K000300   0.0
062 L000300   0.0
062 M000300   0.0
062 N000300   0.0
062 O000300   2.4
062 P000300  94.0
062 Q000300   2.4
062 R000300   0.0
063 A000300   0
063 B000300 14.0
066 A000300 N
067  000300 N
068 A000300 N
068 B000300 N
069  000300 N
070 A010300 Y
070 A020300 N
070 B010300 Y
070 B020300 N
070 C010300 Y
070 C020300 N
070 D010300 Y
070 D020300 N
070 E010300 Y
070 E020300 N
070 F010300 Y
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 Y
070 H020300 N
070 I010300 Y
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 N
070 L010300 Y
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 N
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 N
070 Q010300 N
070 Q020300 N
<PAGE>      PAGE  16
070 R010300 N
070 R020300 N
071 A000300    134689
071 B000300    124962
071 C000300     51872
071 D000300  241
072 A000300  6
072 B000300     2087
072 C000300        0
072 D000300        0
072 E000300        0
072 F000300      168
072 G000300        0
072 H000300        0
072 I000300       58
072 J000300       11
072 K000300        6
072 L000300        7
072 M000300        9
072 N000300        8
072 O000300        0
072 P000300        0
072 Q000300        0
072 R000300        1
072 S000300        1
072 T000300       61
072 U000300        0
072 V000300        0
072 W000300       14
072 X000300      344
072 Y000300       11
072 Z000300     1754
072AA000300      324
072BB000300        0
072CC010300        0
072CC020300      139
072DD010300     1777
072DD020300        0
072EE000300        0
073 A010300   0.4900
073 A020300   0.0000
073 B000300   0.1600
073 C000300   0.0000
074 A000300        0
074 B000300     1000
074 C000300      500
074 D000300    59870
074 E000300        0
074 F000300     1386
074 G000300        0
074 H000300        0
<PAGE>      PAGE  17
074 I000300        0
074 J000300        0
074 K000300        0
074 L000300     1180
074 M000300        4
074 N000300    63940
074 O000300     1258
074 P000300       51
074 Q000300        0
074 R010300        0
074 R020300        0
074 R030300        0
074 R040300      137
074 S000300        0
074 T000300    62494
074 U010300     3745
074 U020300        0
074 V010300    16.69
074 V020300     0.00
074 W000300   0.0000
074 X000300     4774
074 Y000300        0
075 A000300        0
075 B000300    61218
076  000300     0.00
083 A000300 N
083 B000300        0
084 A000300 N
084 B000300        0
085 A000300 Y
085 B000300 N
028 A010400      4895
028 A020400         0
028 A030400         0
028 A040400      1884
028 B010400      3034
028 B020400         0
028 B030400         0
028 B040400      1220
028 C010400      3806
028 C020400     17357
028 C030400         0
028 C040400      1863
028 D010400      3143
028 D020400         0
028 D030400         0
028 D040400      1985
028 E010400      3024
028 E020400         0
028 E030400         0
028 E040400      1543
<PAGE>      PAGE  18
028 F010400      3549
028 F020400         0
028 F030400         0
028 F040400      1970
028 G010400     21451
028 G020400     17357
028 G030400         0
028 G040400     10465
028 H000400     21451
029  000400 Y
030 A000400    586
030 B000400  4.75
030 C000400  0.00
031 A000400    122
031 B000400      0
032  000400    425
033  000400     39
042 A000400  14
042 B000400   9
042 C000400   9
042 D000400  60
042 E000400   8
042 F000400   0
042 G000400   0
042 H000400   0
043  000400    206
044  000400      0
045  000400 Y
048  000400  0.700
048 A010400        0
048 A020400 0.000
048 B010400        0
048 B020400 0.000
048 C010400        0
048 C020400 0.000
048 D010400        0
048 D020400 0.000
048 E010400        0
048 E020400 0.000
048 F010400        0
048 F020400 0.000
048 G010400        0
048 G020400 0.000
048 H010400        0
048 H020400 0.000
048 I010400        0
048 I020400 0.000
048 J010400        0
048 J020400 0.000
048 K010400        0
048 K020400 0.000
<PAGE>      PAGE  19
062 A000400 N
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
066 A000400 Y
066 D000400 Y
067  000400 N
068 A000400 N
068 B000400 N
069  000400 N
070 A010400 Y
070 A020400 N
070 B010400 Y
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 Y
070 D020400 N
070 E010400 Y
070 E020400 N
070 F010400 Y
070 F020400 N
070 G010400 Y
070 G020400 N
070 H010400 Y
070 H020400 N
070 I010400 Y
070 I020400 N
070 J010400 Y
070 J020400 N
070 K010400 Y
070 K020400 N
070 L010400 Y
070 L020400 Y
070 M010400 N
<PAGE>      PAGE  20
070 M020400 N
070 N010400 N
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 Y
070 R020400 N
071 A000400     88187
071 B000400     82286
071 C000400    152662
071 D000400   54
072 A000400  6
072 B000400       40
072 C000400      715
072 D000400        0
072 E000400        0
072 F000400      439
072 G000400        0
072 H000400        0
072 I000400      174
072 J000400       10
072 K000400       19
072 L000400       22
072 M000400       27
072 N000400       18
072 O000400        0
072 P000400        0
072 Q000400        0
072 R000400        2
072 S000400        3
072 T000400      206
072 U000400        0
072 V000400        0
072 W000400       36
072 X000400      956
072 Y000400       10
072 Z000400     -191
072AA000400    14887
072BB000400        0
072CC010400        0
072CC020400     2281
072DD010400        0
072DD020400        0
072EE000400    19302
073 A010400   0.0000
073 A020400   0.0000
073 B000400   3.3600
<PAGE>      PAGE  21
073 C000400   0.0000
074 A000400      140
074 B000400     8200
074 C000400        0
074 D000400      190
074 E000400        0
074 F000400   167110
074 G000400        0
074 H000400        0
074 I000400        0
074 J000400        0
074 K000400        0
074 L000400      316
074 M000400       17
074 N000400   175973
074 O000400      950
074 P000400      152
074 Q000400        0
074 R010400        0
074 R020400        0
074 R030400        0
074 R040400      161
074 S000400        0
074 T000400   174710
074 U010400     6410
074 U020400      327
074 V010400    26.01
074 V020400    24.38
074 W000400   0.0000
074 X000400    14905
074 Y000400        0
075 A000400        0
075 B000400   156818
076  000400     0.00
083 A000400 N
083 B000400        0
084 A000400 N
084 B000400        0
085 A000400 Y
085 B000400 N
SIGNATURE   WILLIAM M. TARTIKOFF                         
TITLE       GENERAL COUNSEL     
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 168
   <NAME> MONEY MARKET PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                           170852
<INVESTMENTS-AT-VALUE>                          170852
<RECEIVABLES>                                     2698
<ASSETS-OTHER>                                     156
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  173706
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          408
<TOTAL-LIABILITIES>                                408
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        173316
<SHARES-COMMON-STOCK>                           173338
<SHARES-COMMON-PRIOR>                           166163
<ACCUMULATED-NII-CURRENT>                           12
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           (30)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                    173298
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4894
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     733
<NET-INVESTMENT-INCOME>                           4161
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                             4161
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (4149)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          79365
<NUMBER-OF-SHARES-REDEEMED>                    (76100)
<SHARES-REINVESTED>                               3911
<NET-CHANGE-IN-ASSETS>                            7188
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                         (30)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              419
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    745
<AVERAGE-NET-ASSETS>                            167903
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                  0.025
<PER-SHARE-GAIN-APPREC>                              0
<PER-SHARE-DIVIDEND>                           (0.025)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   0.87
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 178
   <NAME> MANAGED GROWTH PORTFOLIO, CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                           597544
<INVESTMENTS-AT-VALUE>                          733397
<RECEIVABLES>                                    16087
<ASSETS-OTHER>                                      34
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  749518
<PAYABLE-FOR-SECURITIES>                         16245
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         4293
<TOTAL-LIABILITIES>                              20538
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        558114
<SHARES-COMMON-STOCK>                            20887
<SHARES-COMMON-PRIOR>                            19362
<ACCUMULATED-NII-CURRENT>                          674
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          24319
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        134683
<NET-ASSETS>                                    717790
<DIVIDEND-INCOME>                                 1497
<INTEREST-INCOME>                                 9581
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    3693
<NET-INVESTMENT-INCOME>                           7385
<REALIZED-GAINS-CURRENT>                         31144
<APPREC-INCREASE-CURRENT>                        29926
<NET-CHANGE-FROM-OPS>                            68455
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (7408)
<DISTRIBUTIONS-OF-GAINS>                       (64691)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          34271
<NUMBER-OF-SHARES-REDEEMED>                    (54956)
<SHARES-REINVESTED>                              66809
<NET-CHANGE-IN-ASSETS>                           42480
<ACCUMULATED-NII-PRIOR>                            696
<ACCUMULATED-GAINS-PRIOR>                        57865
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             2019
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   3757
<AVERAGE-NET-ASSETS>                            671794
<PER-SHARE-NAV-BEGIN>                            34.88
<PER-SHARE-NII>                                  0.370
<PER-SHARE-GAIN-APPREC>                          2.850
<PER-SHARE-DIVIDEND>                           (0.370)
<PER-SHARE-DISTRIBUTIONS>                      (3.360)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              34.37
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 186
   <NAME> MANAGED GROWTH PORTFOLIO, CLASS C
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                           597544
<INVESTMENTS-AT-VALUE>                          733397
<RECEIVABLES>                                    16087
<ASSETS-OTHER>                                      34
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  749518
<PAYABLE-FOR-SECURITIES>                         16245
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         4293
<TOTAL-LIABILITIES>                              20538
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         10031
<SHARES-COMMON-STOCK>                              330
<SHARES-COMMON-PRIOR>                              258
<ACCUMULATED-NII-CURRENT>                         (34)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                             23
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          1170
<NET-ASSETS>                                     11190
<DIVIDEND-INCOME>                                   22
<INTEREST-INCOME>                                  138
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     106
<NET-INVESTMENT-INCOME>                             54
<REALIZED-GAINS-CURRENT>                           456
<APPREC-INCREASE-CURRENT>                          467
<NET-CHANGE-FROM-OPS>                              977
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         (59)
<DISTRIBUTIONS-OF-GAINS>                         (946)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           2076
<NUMBER-OF-SHARES-REDEEMED>                      (738)
<SHARES-REINVESTED>                                987
<NET-CHANGE-IN-ASSETS>                            2297
<ACCUMULATED-NII-PRIOR>                           (28)
<ACCUMULATED-GAINS-PRIOR>                          513
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               29
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    107
<AVERAGE-NET-ASSETS>                              9669
<PER-SHARE-NAV-BEGIN>                            34.52
<PER-SHARE-NII>                                  0.200
<PER-SHARE-GAIN-APPREC>                          2.800
<PER-SHARE-DIVIDEND>                           (0.200)
<PER-SHARE-DISTRIBUTIONS>                      (3.360)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              33.96
<EXPENSE-RATIO>                                   2.21
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 134
   <NAME> BOND PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                            61670
<INVESTMENTS-AT-VALUE>                           62755
<RECEIVABLES>                                     1180
<ASSETS-OTHER>                                       4
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   63939
<PAYABLE-FOR-SECURITIES>                          1258
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          188
<TOTAL-LIABILITIES>                               1446
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         60658
<SHARES-COMMON-STOCK>                             3745
<SHARES-COMMON-PRIOR>                             3585
<ACCUMULATED-NII-CURRENT>                           82
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            668
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          1086
<NET-ASSETS>                                     62494
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 2086
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     333
<NET-INVESTMENT-INCOME>                           1753
<REALIZED-GAINS-CURRENT>                           324
<APPREC-INCREASE-CURRENT>                        (139)
<NET-CHANGE-FROM-OPS>                             1938
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1777)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           6720
<NUMBER-OF-SHARES-REDEEMED>                     (5916)
<SHARES-REINVESTED>                               1872
<NET-CHANGE-IN-ASSETS>                            2837
<ACCUMULATED-NII-PRIOR>                            106
<ACCUMULATED-GAINS-PRIOR>                          343
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              168
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    344
<AVERAGE-NET-ASSETS>                             61218
<PER-SHARE-NAV-BEGIN>                            16.64
<PER-SHARE-NII>                                  0.480
<PER-SHARE-GAIN-APPREC>                          0.220
<PER-SHARE-DIVIDEND>                           (0.490)
<PER-SHARE-DISTRIBUTIONS>                      (0.160)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.69
<EXPENSE-RATIO>                                   1.09
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 182
   <NAME> EQUITY PORTFOLIO, CLASS A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                           149022
<INVESTMENTS-AT-VALUE>                          175501
<RECEIVABLES>                                      316
<ASSETS-OTHER>                                     157
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  175974
<PAYABLE-FOR-SECURITIES>                           950
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          313
<TOTAL-LIABILITIES>                               1263
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        130296
<SHARES-COMMON-STOCK>                             6410
<SHARES-COMMON-PRIOR>                             5294
<ACCUMULATED-NII-CURRENT>                         (51)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          10895
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         25599
<NET-ASSETS>                                    166739
<DIVIDEND-INCOME>                                  684
<INTEREST-INCOME>                                   38
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     872
<NET-INVESTMENT-INCOME>                          (834)
<REALIZED-GAINS-CURRENT>                         14243
<APPREC-INCREASE-CURRENT>                         2177
<NET-CHANGE-FROM-OPS>                            15586
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (18421)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          19471
<NUMBER-OF-SHARES-REDEEMED>                     (9701)
<SHARES-REINVESTED>                              16509
<NET-CHANGE-IN-ASSETS>                           23444
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                        15172
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              420
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 881766
<AVERAGE-NET-ASSETS>                            150082
<PER-SHARE-NAV-BEGIN>                            27.77
<PER-SHARE-NII>                                (0.030)
<PER-SHARE-GAIN-APPREC>                          1.630
<PER-SHARE-DIVIDEND>                               0.0
<PER-SHARE-DISTRIBUTIONS>                      (3.360)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              26.01
<EXPENSE-RATIO>                                   1.17
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000356682
<NAME> CALVERT SOCIAL INVESTMENT FUND
<SERIES>
   <NUMBER> 149
   <NAME> EQUITY PORTFOLIO, CLASS C
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               MAR-31-1998
<INVESTMENTS-AT-COST>                           149022
<INVESTMENTS-AT-VALUE>                          175501
<RECEIVABLES>                                      316
<ASSETS-OTHER>                                     157
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  175974
<PAYABLE-FOR-SECURITIES>                           950
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          313
<TOTAL-LIABILITIES>                               1263
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                          7095
<SHARES-COMMON-STOCK>                              327
<SHARES-COMMON-PRIOR>                              237
<ACCUMULATED-NII-CURRENT>                        (140)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            137
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           879
<NET-ASSETS>                                      7971
<DIVIDEND-INCOME>                                   31
<INTEREST-INCOME>                                    2
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      74
<NET-INVESTMENT-INCOME>                           (72)
<REALIZED-GAINS-CURRENT>                           645
<APPREC-INCREASE-CURRENT>                          104
<NET-CHANGE-FROM-OPS>                              677
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         (881)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1984
<NUMBER-OF-SHARES-REDEEMED>                      (765)
<SHARES-REINVESTED>                                848
<NET-CHANGE-IN-ASSETS>                            1863
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          274
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               19
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  74505
<AVERAGE-NET-ASSETS>                              6736
<PER-SHARE-NAV-BEGIN>                            26.37
<PER-SHARE-NII>                                (0.010)
<PER-SHARE-GAIN-APPREC>                          1.380
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                      (3.360)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              24.38
<EXPENSE-RATIO>                                   2.20
<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