A copy of the report transmitted to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1) follows.

Domini Social Index Portfolio
Portfolio of Investments

January 31, 2003 (unaudited)


Issuer	Shares		Value
Consumer Discretionary — 12.5%
American Greetings Corporation (a)		15,700	$	218,230
AOL Time Warner, Inc. (a)		1,097,200		12,793,352
AutoZone, Inc. (a)		24,900		1,636,179
Bandag, Inc.		2,400		89,136
Bassett Furniture Industries		3,000		42,720
Black & Decker Corp.		20,700		758,448
Bob Evans Farms, Inc.		9,300		210,924
CDW Computer Centers, Inc. (a)		21,700		956,753
Centex Corporation		15,800		836,136
Champion Enterprises, Inc. (a)		12,800		37,760
Charming Shoppes, Inc. (a)		29,400		98,784
Circuit City Stores, Inc.		54,100		324,059
Claire's Stores, Inc.		11,900		278,698
Comcast Corporation (a)		346,058		9,215,525
Cooper Tire and Rubber Company		18,800		268,840
Costco Wholesale Corporation (a)		116,530		3,364,221
Cross (A.T.) Company (a)		3,800		20,140
Dana Corporation		38,400		413,568
Darden Restaurants, Inc.		44,200		959,140
Delphi Automotive Systems Corporation		144,300		1,229,436
Dillard's, Inc.		20,700		310,500
Disney (Walt) Company		521,200		9,121,000
Dollar General Corporation		86,551		974,564
Dow Jones & Company		16,000		645,760
eBay Inc. (a)		79,200		5,952,672
Emmis Communications Corporation (a)		12,200		267,668
Family Dollar Stores Inc.		44,300		1,334,316
Fleetwood Enterprises, Inc. (a)		9,300		46,407
Foot Locker, Inc.		36,300		366,630
Gaiam, Inc. (a)		2,200		16,588
Gap, Inc. (The)		224,687		3,287,171
Harley-Davidson, Inc.		77,500		3,237,950
Harman International Industries, Inc.		8,360		514,140
Hartmarx Corporation (a)		8,500		21,165
Home Depot, Inc.		594,397		12,422,897
Ikon Office Solutions		38,800		300,700
KB Home		12,400		554,404
Lee Enterprises, Inc.		8,800		299,728
Leggett & Platt, Incorporated		50,300		1,016,060
Lillian Vernon Corporation		2,200		9,350
Limited, Inc. (The)		134,700		1,695,873
Liz Claiborne, Inc.		27,300		784,056
Lowe's Companies, Inc.		198,600		6,788,148
Luby's, Inc. (a)		5,800		11,484
Mattel, Inc.		110,285		2,205,700
May Department Stores Company		74,500		1,527,250
Maytag Corporation		20,100		507,927
McDonald's Corporation		325,700		4,637,968
McGraw-Hill Companies		49,500		2,931,390
Media General, Inc.		5,800		316,100
Men's Wearhouse, Inc. (a)		10,600		148,506
Meredith Corporation		10,200		430,338
Modine Manufacturing Company		8,700		140,940
New York Times Company		38,900		1,899,876
Newell Rubbermaid, Inc.		67,478		1,879,262
Nordstrom, Inc.		34,800		627,792
Omnicom Group, Inc.		48,200		2,906,460
Oneida Ltd.		4,300		47,214
Oshkosh B'Gosh, Inc.		2,700		64,881
Penney (J.C.) Company, Inc.		69,200		1,341,788
Pep Boys — Manny, Moe & Jack		14,000		145,740
Phillips-Van Heusen Corporation		7,200		85,320
Pixar (a)		13,000		714,870
Pulte Homes, Inc.		15,800		789,684
Radio One, Inc. (a)		5,800		89,784
RadioShack Corporation		43,500		867,825
Reebok International Ltd. (a)		15,200		459,648
Ruby Tuesday, Inc.		16,700		315,630
Russell Corporation		8,300		133,049

-1-

Domini Social Index Portfolio / Portfolio of Investments (Continued)
January 31, 2003 (unaudited)


Issuer	Shares		Value
Consumer Discretionary (Continued)
Scholastic Corporation (a)		9,700		345,504
Sears, Roebuck and Co.		80,100		2,118,645
Snap-On Incorporated		15,050		383,775
SPX Corporation (a)		20,830		772,793
Stanley Works		22,200		590,964
Staples, Inc. (a)		120,300		2,065,551
Starbucks Corporation (a)		98,300		2,233,376
Stride Rite Corporation		10,800		87,156
Target Corporation		231,500		6,530,615
Timberland Company (The) (a)		7,500		232,125
TJX Companies, Inc.		135,200		2,482,272
Toys 'R' Us, Inc. (a)		54,220		490,149
Tribune Company		77,450		3,748,580
Tupperware Corporation		15,000		231,900
Univision Communications, Inc. (a)		41,400		1,091,304
VF Corporation		28,100		989,963
Visteon Corporation		34,000		233,580
Washington Post Company		2,000		1,469,000
Wellman, Inc.		8,200		100,860
Wendy's International, Inc.		29,800		809,070
Whirlpool Corporation		17,600		914,673
				136,868,077

Consumer Staples — 13.0%
Alberto-Culver Company		8,400		426,132
Albertson's, Inc.		101,100		2,173,650
Avon Products, Inc.		60,300		3,015,000
Campbell Soup Company		104,900		2,514,453
Church & Dwight Co., Inc.		10,300		298,700
Clorox Company		56,300		2,151,786
Coca-Cola Company		634,100		25,655,686
Colgate-Palmolive Company		137,400		6,995,034
CVS Corporation		100,500		2,273,310
Fleming Companies, Inc.		12,900		47,085
General Mills Incorporated		94,300		4,236,899
Gillette Company		269,600		8,061,040
Green Mountain Coffee, Inc. (a)		1,800		27,018
Hain Celestial Group, Inc. (The) (a)		8,700		103,269
Heinz (H.J.) Company		89,900		2,904,669
Hershey Foods Corporation		26,600		1,715,700
Horizon Organic Holding Corporation (a)		2,600		33,254
Kellogg Company		104,600		3,493,640
Kimberly-Clark Corporation		131,964		6,112,572
Kroger Company (a)		198,100		2,989,329
Longs Drug Stores Corporation		9,900		211,167
Nature's Sunshine Products, Inc.		4,200		36,078
PepsiAmericas, Inc.		39,000		501,150
PepsiCo, Inc.		441,570		17,874,754
Procter & Gamble Company		332,400		28,443,468
Safeway Inc. (a)		112,900		2,675,730
Smucker (J.M.) Company		12,905		516,200
SUPERVALU, Inc.		34,400		511,872
Sysco Corporation		168,500		4,948,845
Tootsie Roll Industries, Inc.		9,096		257,417
United Natural Foods, Inc. (a)		5,000		104,900
Walgreen Company		261,600		7,586,400
Whole Foods Market, Inc. (a)		14,900		757,218
Wild Oats Markets, Inc. (a)		6,550		54,300
Wrigley (Wm.) Jr. Company		46,500		2,581,679
				142,289,404

Energy — 1.0%
Anadarko Petroleum Corporation		63,685		2,936,515
Apache Corporation		36,440		2,274,220
Cooper Cameron Corp. (a)		14,100		683,427
Devon Energy Corporation		40,472		1,833,382
EOG Resources, Inc.		29,800		1,155,048
Equitable Resources, Inc.		16,100		598,598
Helmerich & Payne, Inc.		13,000		324,870
Noble Energy, Inc.		14,700		524,790
Rowan Companies, Inc.		24,200		499,246
Sunoco, Inc.		19,800		620,136
				11,450,232

Financials — 25.3%
AFLAC, Inc.		132,300		4,285,197
American Express Company		335,800		11,930,974
American International Group, Inc.		667,476		36,123,801

-2-

Domini Social Index Portfolio / Portfolio of Investments (Continued)
January 31, 2003 (unaudited)


Issuer	Shares		Value
Financials (Continued)
AmSouth Bancorporation		91,800		1,880,982
Aon Corporation		79,700		1,508,721
Bank of America Corporation		382,800		26,815,140
Bank One Corporation		297,585		10,864,828
Capital One Financial Corporation		56,000		1,738,800
Cathay Bancorp, Inc.		4,700		176,762
Charter One Financial, Inc.		58,410		1,688,633
Chittenden Corporation		8,376		216,101
Chubb Corporation		43,400		2,331,448
Cincinnati Financial Corporation		41,585		1,488,327
Comerica Incorporated		44,200		1,790,100
Edwards (A.G.), Inc.		20,387		582,457
Fannie Mae		253,800		16,420,860
Fifth Third Bancorp		147,537		7,871,099
First Tennessee National Corporation		32,400		1,215,000
FirstFed Financial Corp. (a)		4,500		130,095
Franklin Resources, Inc.		65,100		2,170,434
Freddie Mac		177,300		9,925,254
Golden West Financial		39,300		2,889,729
GreenPoint Financial Corporation		25,200		1,086,372
Hartford Financial Services Group (The)		65,100		2,713,368
Janus Capital Group Inc. (a)		57,000		723,330
Jefferson-Pilot Corporation		37,125		1,429,313
KeyCorp		108,800		2,616,640
Lincoln National Corporation		45,800		1,477,050
Marsh & McLennan Companies, Inc.		137,500		5,861,625
MBIA, Inc.		37,500		1,536,750
MBNA Corporation		327,875		5,518,136
Mellon Financial Corporation		110,400		2,524,848
Merrill Lynch & Co., Inc.		219,900		7,700,898
MGIC Investment Corporation		26,000		1,121,380
Moody's Corporation		39,000		1,633,320
Morgan (J.P.) Chase & Co.		509,560		11,893,130
National City Corporation		156,700		4,356,260
Northern Trust Corporation		55,900		1,911,780
PNC Financial Services Group		72,800		3,206,112
Progressive Corporation (The)		55,700		2,692,538
Providian Financial Corporation (a)		74,200		474,138
Rouse Company		22,500		713,925
SAFECO Corporation		35,400		1,269,090
Schwab (Charles) Corporation		344,500		3,176,290
SLM Corporation		39,400		4,185,462
St. Paul Companies, Inc.		57,264		1,869,097
State Street Corporation		83,000		3,285,970
SunTrust Banks, Inc.		72,700		4,118,455
Synovus Financial Corporation		76,550		1,479,712
U.S. Bancorp		489,021		10,318,343
UnumProvident Corporation		62,200		1,086,634
Value Line, Inc.		2,600		119,938
Wachovia Corporation		347,600		12,503,172
Washington Mutual, Inc.		241,404		8,316,368
Wells Fargo & Company		432,600		20,492,262
Wesco Financial Corporation		1,800		540,000
				277,996,448

Health Care — 13.5%
Allergan, Inc.		32,700		1,983,909
Amgen, Inc. (a)		326,800		16,653,728
Applera Corp.-Applied Biosystems Group		54,300		952,965
Bard (C.R.), Inc.		13,400		759,512
Bausch & Lomb Incorporated		14,000		465,500
Baxter International, Inc.		152,200		4,288,996
Becton Dickinson and Company		64,900		2,128,720
Biogen, Inc. (a)		38,400		1,468,800
Biomet, Inc.		67,100		1,874,841
Boston Scientific Corporation (a)		104,300		4,218,935
CIGNA Corporation		36,000		1,572,120
Forest Laboratories, Inc. (a)		92,200		4,771,350
Guidant Corporation (a)		78,200		2,629,084
Hillenbrand Industries, Inc.		15,900		813,285
Humana, Inc. (a)		42,900		426,426
Invacare Corporation		7,700		233,618
Invitrogen Corporation (a)		13,400		394,764
Johnson & Johnson		760,070		40,747,353
King Pharmaceuticals Inc. (a)		62,500		917,500
Manor Care, Inc. (a)		25,000		480,500
McKesson HBOC, Inc.		73,420		2,087,331

-3-

Domini Social Index Portfolio / Portfolio of Investments (Continued)
January 31, 2003 (unaudited)


Issuer	Shares		Value
Health Care (Continued)
MedImmune, Inc. (a)		63,500		1,891,665
Medtronic, Inc.		310,500		13,947,660
Merck & Co., Inc.		574,500		31,821,555
Mylan Laboratories, Inc.		47,550		1,270,536
Oxford Health Plans, Inc. (a)		22,700		799,721
Quintiles Transnational Corp. (a)		30,400		386,384
St. Jude Medical, Inc. (a)		44,900		1,956,293
Stryker Corporation (a)		50,700		3,054,168
Watson Pharmaceuticals (a)		27,700		838,756
Zimmer Holdings, Inc. (a)		49,300		2,021,300
				147,857,275

Industrials — 7.0%
3M Company		99,700		12,417,635
Airborne, Inc.		12,500		192,375
Alaska Air Group, Inc. (a)		6,900		136,413
American Power Conversion (a)		50,600		787,336
AMR Corporation (a)		39,900		115,710
Angelica Corporation		2,200		42,680
Apogee Enterprises, Inc.		7,400		68,672
AstroPower, Inc. (a)		5,700		38,475
Ault, Inc. (a)		1,200		2,292
Automatic Data Processing, Inc.		153,674		5,327,878
Avery Dennison Corporation		28,400		1,692,356
Baldor Electric Company		8,800		168,432
Banta Corporation		6,550		196,304
Block (H & R), Inc.		45,700		1,731,573
Brady Corporation		5,500		146,080
Bright Horizons Family Solutions, Inc. (a)		3,200		85,440
Ceridian Corporation (a)		37,800		542,052
Cintas Corporation		43,600		1,800,680
CLARCOR, Inc.		6,450		209,625
Cooper Industries, Inc.		23,900		846,777
CPI Corporation		2,100		29,379
Cummins, Inc.		10,700		264,290
Deere & Company		61,000		2,574,200
Delta Air Lines, Inc.		32,000		292,480
Deluxe Corporation		16,000		643,840
DeVry, Inc. (a)		18,100		305,890
Dionex Corporation (a)		5,600		174,664
Donaldson Company, Inc.		11,300		383,635
Donnelley (R.R.) & Sons Company		29,300		631,415
Ecolab, Inc.		33,500		1,651,550
Emerson Electric Company		108,000		5,068,440
Fastenal Company		19,700		652,464
FedEx Corporation		76,300		4,013,380
GATX Corporation		12,600		240,282
Genuine Parts Company		44,900		1,324,550
Graco, Inc.		12,368		329,236
Grainger (W.W.), Inc.		23,600		1,116,280
Granite Construction Incorporated		10,625		161,500
Harland (John H.) Company		7,600		167,580
Herman Miller, Inc.		19,300		345,277
HON Industries Inc.		15,200		393,984
Hubbell Incorporated		12,660		399,423
Illinois Tool Works, Inc.		78,600		4,780,452
IMCO Recycling, Inc. (a)		3,800		21,508
IMS Health, Inc.		70,500		1,187,925
Interface, Inc.		11,400		31,350
Ionics, Inc. (a)		4,500		101,880
Isco, Inc.		1,500		12,630
Kansas City Southern Industries, Inc. (a)		15,700		200,175
Kelly Services, Inc.		8,475		177,128
Lawson Products, Inc.		2,500		66,875
Lincoln Electric Holdings, Inc.		11,000		244,420
Masco Corporation		126,100		2,293,759
Merix Corporation (a)		3,750		23,475
Milacron, Inc.		8,700		43,413
Molex Incorporated		25,646		538,310
National Service Industries, Inc.		2,875		17,394
New England Business Service, Inc.		3,400		74,800
Nordson Corporation		8,600		190,060
Norfolk Southern Corporation		100,300		1,975,910
Osmonics, Inc. (a)		3,800		65,208
Paychex, Inc.		96,200		2,422,316
Pitney Bowes, Inc.		59,900		1,949,146
Roadway Express, Inc.		5,000		172,200
Robert Half International, Inc. (a)		44,800		679,168

-4-

Domini Social Index Portfolio / Portfolio of Investments (Continued)
January 31, 2003 (unaudited)


Issuer	Shares		Value
Industrials (Continued)
Ryder System, Inc.		16,100		362,733
Smith (A.O.) Corporation		5,200		135,148
Southwest Airlines Co.		197,862		2,582,099
Spartan Motors, Inc.		3,100		34,503
Standard Register Company		6,000		112,620
Steelcase, Inc.		9,900		104,247
Tennant Company		2,300		69,690
Thermo Electron Corporation (a)		43,300		786,761
Thomas & Betts Corporation (a)		15,100		254,888
Thomas Industries, Inc.		4,000		99,000
Toro Company		3,200		201,632
United Parcel Service, Inc.		120,100		7,245,633
Watts Industries		4,700		65,517
Yellow Corporation (a)		7,500		175,214
				77,211,711

Information Technology — 18.6%
3Com Corporation (a)		91,500		387,045
Adaptec, Inc. (a)		27,400		162,208
ADC Telecommunications, Inc. (a)		206,300		474,490
Advanced Micro Devices, Inc. (a)		88,300		462,692
Advent Software, Inc. (a)		8,500		118,235
Analog Devices, Inc. (a)		93,600		2,239,848
Andrew Corporation (a)		25,500		235,620
Apple Computer, Inc. (a)		92,700		1,331,172
Applied Materials, Inc. (a)		422,200		5,053,734
Arrow Electronics, Inc. (a)		25,900		307,433
Autodesk, Inc.		29,200		436,248
BMC Software, Inc. (a)		60,800		1,071,904
Borland Software Corporation (a)		18,300		190,320
Cisco Systems, Inc. (a)		1,848,000		24,707,760
Compuware Corporation (a)		96,600		338,100
Dell Computer Corporation (a)		662,100		15,797,706
Electronic Arts Inc. (a)		35,700		1,849,617
Electronic Data Systems Corporation		120,700		2,045,865
EMC Corporation (a)		564,000		4,342,800
Gerber Scientific, Inc. (a)		5,700		32,718
Hewlett-Packard Company		780,010		13,579,974
Hutchinson Technology Incorporated (a)		6,500		148,265
Imation Corporation (a)		9,100		325,234
Intel Corporation		1,704,800		26,697,168
Lexmark International Group, Inc. (a)		32,500		1,967,550
LSI Logic Corporation (a)		95,300		420,273
Lucent Technologies, Inc. (a)		892,000		1,659,120
Micron Technology, Inc. (a)		156,000		1,280,760
Microsoft Corporation		1,368,300		64,939,518
Millipore Corporation (a)		12,400		400,644
National Semiconductor Corporation (a)		46,200		609,840
Novell, Inc. (a)		93,600		303,264
Palm, Inc. (a)		7,504		116,387
PeopleSoft, Inc. (a)		80,300		1,557,017
Plantronics, Inc. (a)		11,600		165,068
QRS Corporation (a)		4,100		21,984
Qualcomm, Inc. (a)		200,400		7,547,064
Sapient Corporation (a)		32,800		58,056
Scientific-Atlanta, Inc.		39,900		442,890
Solectron Corporation (a)		213,800		767,542
Sun Microsystems, Inc. (a)		797,800		2,465,202
Symantec Corporation (a)		36,800		1,717,824
Tektronix, Inc. (a)		22,600		372,900
Tellabs, Inc. (a)		106,000		825,740
Texas Instruments, Inc.		444,900		7,073,910
Waters Corporation (a)		33,400		769,870
Xerox Corporation (a)		186,300		1,648,755
Xilinx, Inc. (a)		85,300		1,688,087
Yahoo! Inc. (a)		151,300		2,753,660
				203,909,081

Materials — 1.3%
Air Products & Chemicals, Inc.		57,600		2,387,520
Bemis Company, Inc.		13,700		597,594
Cabot Corporation		16,000		404,160
Calgon Carbon Corporation		10,100		60,600
Caraustar Industries, Inc. (a)		7,200		54,648
Crown Cork & Seal Company, Inc. (a)		41,600		288,288
Engelhard Corporation		33,200		687,572
Fuller (H.B.) Company		7,300		185,055
Lubrizol Corporation		13,300		395,409

-5-

Domini Social Index Portfolio / Portfolio of Investments (Continued)
January 31, 2003 (unaudited)


Issuer	Shares		Value
Materials (Continued)
MeadWestvaco Corp.		51,112		1,229,244
Minerals Technologies, Inc.		5,300		210,145
Nucor Corporation		20,150		804,187
Praxair, Inc.		40,700		2,219,778
Rock-Tenn Company		9,000		123,570
Rohm & Haas Company		55,600		1,715,260
Sealed Air Corporation (a)		21,700		818,524
Sigma-Aldrich Corporation		18,600		834,582
Sonoco Products Company		24,745		519,150
Stillwater Mining Company (a)		11,200		47,936
Trex Company, Inc. (a)		3,700		118,400
Worthington Industries, Inc.		22,200		336,773
				14,038,395

Telecommunication Services — 6.4%
AT&T Corporation		197,316		3,843,715
AT&T Wireless Services, Inc. (a)		694,587		4,216,143
BellSouth Corporation		474,900		10,818,222
Citizens Communications Company (a)		72,767		712,389
SBC Communications, Inc.		849,128		20,752,688
Sprint Corporation		228,800		2,777,632
Telephone and Data Systems, Inc.		13,500		579,150
Verizon Communications		697,922		26,716,455
				70,416,394

Utilities — 0.8%
AGL Resources, Inc.		14,400		329,040
Cascade Natural Gas Corporation		2,900		55,535
Cleco Corporation		12,200		164,700
Energen Corporation		8,900		270,293
IDACORP, Inc.		9,700		217,765
KeySpan Corporation		36,700		1,247,800
Kinder Morgan, Inc.		31,500		1,420,965
MGE Energy, Inc.		4,400		119,020
Mirant Corporation (a)		103,600		182,336
National Fuel Gas Company		20,500		421,890
NICOR, Inc.		11,400		358,530
NISource, Inc.		61,500		1,092,855
Northwest Natural Gas Company		6,500		169,130
Northwestern Corporation		7,100		37,275
OGE Energy Corporation		20,200		345,218
Peoples Energy Corporation		9,200		338,652
Pepco Holdings, Inc.		42,100		789,375
Questar Corporation		21,200		583,000
Southern Union Company (a)		14,233		204,955
WGL Holdings		12,600		319,158
Williams Companies, Inc.		134,200		434,808
				9,102,300
Total Investments — 99.4%
(cost $1,400,636,263) (b)			$	1,091,139,317
Other Assets, less liabilities — 0.6%				6,903,182
Net Assets — 100.0%			$	1,098,042,499

(a)	Non–income producing security.

(b)	The aggregate cost for federal income tax purposes is $1,423,675,834, the aggregate gross unrealized appreciation is $88,732,834, and the aggregate gross unrealized depreciation is $421,269,351, resulting in net unrealized depreciation of $332,536,517.

Copyright in the Domini 400 Social Index^SM is owned by KLD Research & Analytics, Inc., and the Index is reproduced here by permission. No portion of the Index may be reproduced or distributed by any means or in any medium without the express written consent of the copyright owner.

See Notes to Financial Statements

-6-

Domini Social Index Portfolio

Statement of Assets and Liabilities

January 31, 2003 (unaudited)


ASSETS:
Investments at value (Cost $1,400,636,263)	$	1,091,139,317
Cash		5,512,815
Dividends receivable		1,615,452
Total assets		1,098,267,584
LIABILITIES:
Accrued expenses (Note 2)		225,085
Total liabilities		225,085
NET ASSETS APPLICABLE TO INVESTORS' BENEFICIAL INTERESTS	$	1,098,042,499

See Notes to Financial Statements

-7-

Domini Social Index Portfolio

Statement of Operations

Six Months Ended January 31, 2003 (unaudited)


INVESTMENT INCOME
Dividends				$	8,998,035
EXPENSES
Management fee (Note 2)	$	1,222,333
Trustees fees		23,500
Professional fees		61,356
Custody fees (Note 3)		148,092
Miscellaneous		3,540
Total expenses		1,458,821
Fees paid indirectly (Note 3)		(27,107	)
Expenses paid and fee waived by manager (Note 2)		(120,000	)
Net expenses					1,311,714

NET INVESTMENT INCOME					7,686,321
Net realized loss on investments
Proceeds from sales	$	123,679,433
Cost of securities sold		(226,960,791	)
Net realized loss on investments					(103,281,358	)
Net changes in unrealized depreciation of investments
Beginning of period	$	(347,525,759	)
End of period		(309,496,946	)
Net change in unrealized depreciation					38,028,813
NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS				$	(57,566,224	)

See Notes to Financial Statements

-8-

Domini Social Index Portfolio

Statements of Changes in Net Assets


	Six Months Ended January 31, 2003 (unaudited)			Year Ended July 31, 2002
DECREASE IN NET ASSETS
From Operations:
Net investment income	$	7,686,321		$	15,910,596
Net realized loss on investments		(103,281,358	)		(142,946,751	)
Net change in unrealized depreciation of investments		38,028,813			(261,123,037	)
Net Decrease in Net Assets Resulting from Operations		(57,566,224	)		(388,159,192	)
Transactions in Investors' Beneficial Interest:
Additions		125,062,345			309,789,675
Reductions		(208,780,601	)		(411,308,581	)
Net Decrease in Net Assets from Transactions in Investors' Beneficial Interests		(83,718,256	)		(101,518,906	)
Total Decrease in Net Assets		(141,284,480	)		(489,678,098	)
NET ASSETS:
Beginning of period		1,239,326,979			1,729,005,077
End of period	$	1,098,042,499		$	1,239,326,979

See Notes to Financial Statements

-9-

Domini Social Index Portfolio

Financial Highlights


	Six Months Ended January 31, 2003 (unaudited)			Year Ended July 31,
	Six Months Ended January 31, 2003 (unaudited)			2002			2001			2000			1999			1998
Net assets (in millions)	$	1,098		$	1,239		$	1,729		$	1,974		$	1,347		$	642
Ratio of net investment income to average net assets (annualized)		1.29	%⁽¹⁾		1.02	%		0.78	%		0.70	%⁽¹⁾		0.84	%⁽¹⁾		1.05	%⁽²⁾
Ratio of expenses to average net assets (annualized)		0.22	%⁽¹⁾⁽³⁾		0.22	%⁽³⁾		0.22	%⁽³⁾		0.24	%⁽¹⁾⁽³⁾		0.24	%⁽¹⁾⁽³⁾		0.24	%⁽²⁾⁽³⁾
Portfolio turnover rate		4	%		13	%		19	%		9	%		8	%		5	%

⁽¹⁾

Reflects an expense reimbursement and fee waiver by the Manager of 0.02%, 0.002%, and 0.01% for the six months ended January 31, 2003, and the years ended July 31, 2000 and 1999, respectively. Had the Manager not waived its fee and reimbursed expenses, the ratios of net investment income and expenses to average net assets for the six months ended January 31, 2003, would have been 1.27% and 0.24%, respectively, and for the year ended July 31, 2000, would have been 0.70% and 0.24%, respectively, and for the year ended July 31, 1999, would have been 0.83% and 0.25%, respectively.

⁽²⁾	Reflects a waiver of 0.01% of fees by the Manager due to limitations set forth in the Management Agreement. Had the Manager not waived its fees, the ratios of net investment income and expenses to average net assets for the year ended July 31, 1998, would have been 1.04% and 0.25%, respectively.

⁽³⁾

Ratio of expenses to average net assets for the six months ended January 31, 2003, and the years ended July 31, 2002, 2001, 2000, 1999, and 1998, include indirectly paid expenses. Excluding indirectly paid expenses, the expense ratios would have been 0.22%, 0.22%, 0.21%, 0.21%, 0.20%, and 0.20% for the six months ended January 31, 2003, and the years ended July 31, 2002, 2001, 2000, 1999, and 1998, respectively.

See Notes to Financial Statements

-10-

Domini Social Index Portfolio
Notes to Financial Statements

January 31, 2003 (unaudited)

1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Domini Social Index Portfolio is registered under the Investment Company Act of 1940 as a no-load, diversified, open-end management investment company that was organized as a trust under the laws of the State of New York on June 7, 1989. The Portfolio intends to correlate its investment portfolio as closely as is practicable with the Domini 400 Social Index,^SM which is a common stock index developed and maintained by KLD Research & Analytics, Inc. The Declaration of Trust permits the Trustees to issue an unlimited number of beneficial interests in the Portfolio. The Portfolio commenced operations effective on August 10, 1990, and began investment operations on June 3, 1991.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The following is a summary of the Portfolio's significant accounting policies.

(A) Valuation of Investments. The Portfolio values securities listed or traded on national securities exchanges or reported by the NASDAQ National Market reporting system at the last sale price or, if there have been no sales that day, at the mean of the current bid and ask price which represents the current value of the security. Portfolio securities for which there are no such quotations or valuations are valued at fair value as determined in good faith by or at the direction of the Portfolio's Board of Trustees.

(B) Dividend Income. Dividend income is recorded on the ex-dividend date.

-11-

Domini Social Index Portfolio / Notes to Financial Statements (Continued)
January 31, 2003 (unaudited)

(C) Federal Taxes. The Portfolio will be treated as a partnership for U.S. federal income tax purposes and is therefore not subject to U.S. federal income tax. As such, each investor in the Portfolio will be taxed on its share of the Portfolio's ordinary income and capital gains. It is intended that the Portfolio will be managed in such a way that an investor will be able to satisfy the requirements of the Internal Revenue Code applicable to regulated investment companies.

(D) Other. Investment transactions are accounted for on the trade date. Gains and losses are determined on the basis of identified cost.

2. TRANSACTIONS WITH AFFILIATES

(A) Manager. Domini Social Investments LLC (DSIL) is registered as an investment adviser under the Investment Advisers Act of 1940. The services provided by DSIL consist of investment supervisory services, overall operational support and administrative services. The administrative services include the provision of general office facilities and supervising the overall administration of the Portfolio. For its services under the Management Agreement, DSIL receives from the Portfolio a fee accrued daily and paid monthly at an annual rate equal to 0.20%. For the six months ended January 31, 2003, DSIL waived fees totalling $120,000.

(B) Submanager. SSgA Funds Management, Inc. (SSgA) provides investment submanagement services to the Portfolio on a day-to-day basis pursuant to a Submanagement Agreement with DSIL. SSgA does not determine the composition of the Domini 400 Social Index.^SM The Index's composition is determined by KLD Research & Analytics, Inc.

3. INVESTMENT TRANSACTIONS

Cost of purchases and proceeds from sales of investments, other than U.S. government securities and short-term obligations, for the six months ended January 31, 2003, aggregated $48,288,922 and $226,960,791, respectively. Custody fees of the Portfolio were reduced by $27,107, which was compensation for uninvested cash left on deposit with the custodian.

-12-

Item 2. Code of Ethics.

Not applicable.

Item 3. Audit Committee Financial Expert.

Not applicable.

Item 4. Principal Accounting Fees and Services.

Not applicable.

Items 5-6. [Reserved]

Item 7. Disclosure of Proxy Voting Policies and Procedures of Closed-End Management Investment Companies.

Not applicable.

Item 8. [Reserved]

Item 9. Controls and Procedures.

(a) Not applicable.

(b) Not applicable.

Item 10. Exhibits.

(a) Code of Ethics. Not applicable.

(b) Certifications required by Section 302 of the Sarbanes-Oxley Act of 2002 are filed herewith.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

DOMINI SOCIAL INDEX PORTFOLIO

By:	/s/ Amy L. Domini
	Amy L. Domini
	President

Date: April 4, 2003

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:	/s/ Amy L. Domini
	Amy L. Domini
	President

Date: April 4, 2003

By:	/s/ Carole M. Laible
	Carole M. Laible
	Treasurer

Date: April 4, 2003