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WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
CORPORATE BONDS & NOTES - 95.8%
COMMUNICATION SERVICES - 11.8%
Diversified Telecommunication Services - 4.3%
AT&T Inc., Senior Notes		4.500	%		5/15/35	$	370,000	$	443,810
AT&T Inc., Senior Notes		4.900	%		6/15/42		250,000		305,631
AT&T Inc., Senior Notes		3.100	%		2/1/43		320,000		320,221
AT&T Inc., Senior Notes		4.800	%		6/15/44		290,000		350,465
AT&T Inc., Senior Notes		4.500	%		3/9/48		422,000		498,037
AT&T Inc., Senior Notes		3.500	%		2/1/61		260,000		259,043
British Telecommunications PLC, Senior Notes		9.625	%		12/15/30		1,550,000		2,528,231
British Telecommunications PLC, Senior Notes		4.250	%		11/8/49		200,000		233,612	^(a)
Corning Inc., Senior Notes		3.900	%		11/15/49		210,000		242,805
Telefonica Emisiones SA, Senior Notes		7.045	%		6/20/36		140,000		204,171
Verizon Communications Inc., Senior Notes		5.150	%		9/15/23		2,460,000		2,800,153
Verizon Communications Inc., Senior Notes		4.329	%		9/21/28		218,000		264,154
Verizon Communications Inc., Senior Notes		5.500	%		3/16/47		1,130,000		1,659,706

Total Diversified Telecommunication Services									10,110,039

Entertainment - 1.7%
Activision Blizzard Inc., Senior Notes		1.350	%		9/15/30		90,000		88,384
Activision Blizzard Inc., Senior Notes		2.500	%		9/15/50		220,000		206,517
Walt Disney Co., Senior Notes		6.650	%		11/15/37		2,400,000		3,647,367

Total Entertainment									3,942,268

Media - 4.5%
CCO Holdings LLC/CCO Holdings Capital Corp., Senior Notes		4.500	%		5/1/32		910,000		965,638	^(a)
Charter Communications Operating LLC/Charter Communications Operating Capital Corp., Senior Secured Notes		6.384	%		10/23/35		180,000		249,762
Charter Communications Operating LLC/Charter Communications Operating Capital Corp., Senior Secured Notes		6.484	%		10/23/45		420,000		575,028
Charter Communications Operating LLC/Charter Communications Operating Capital Corp., Senior Secured Notes		5.375	%		5/1/47		560,000		671,011
Comcast Corp., Senior Notes		6.400	%		5/15/38		2,500,000		3,772,514
Fox Corp., Senior Notes		5.476	%		1/25/39		810,000		1,075,511
Time Warner Cable LLC, Senior Secured Notes		6.550	%		5/1/37		370,000		498,911
Time Warner Cable LLC, Senior Secured Notes		7.300	%		7/1/38		330,000		472,974
Time Warner Cable LLC, Senior Secured Notes		6.750	%		6/15/39		20,000		27,890
Time Warner Cable LLC, Senior Secured Notes		5.500	%		9/1/41		200,000		246,477

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Media - (continued)
Time Warner Entertainment Co. LP, Senior Secured Notes		8.375	%		3/15/23	$	1,170,000	$	1,392,185
Time Warner Entertainment Co. LP, Senior Secured Notes		8.375	%		7/15/33		370,000		576,533
Viacom Inc., Senior Notes		5.250	%		4/1/44		80,000		93,713

Total Media									10,618,147

Wireless Telecommunication Services - 1.3%
Sprint Corp., Senior Notes		7.250	%		9/15/21		1,170,000		1,235,929
Sprint Corp., Senior Notes		7.875	%		9/15/23		120,000		139,725
Telefonica Europe BV, Senior Notes		8.250	%		9/15/30		390,000		594,430
T-Mobile USA Inc., Senior Secured Notes		4.375	%		4/15/40		100,000		119,782	^(a)
T-Mobile USA Inc., Senior Secured Notes		4.500	%		4/15/50		330,000		403,593	^(a)
Vodafone Group PLC, Senior Notes		5.250	%		5/30/48		320,000		420,565
Vodafone Group PLC, Senior Notes		4.250	%		9/17/50		20,000		23,425

Total Wireless Telecommunication Services									2,937,449

TOTAL COMMUNICATION SERVICES									27,607,903

CONSUMER DISCRETIONARY - 3.4%
Automobiles - 1.0%
Ford Motor Co., Senior Notes		9.215	%		9/15/21		640,000		689,120
General Motors Co., Senior Notes		5.400	%		10/2/23		200,000		221,951
General Motors Co., Senior Notes		6.125	%		10/1/25		300,000		352,500
General Motors Co., Senior Notes		6.600	%		4/1/36		290,000		348,688
General Motors Co., Senior Notes		6.750	%		4/1/46		580,000		705,891

Total Automobiles									2,318,150

Hotels, Restaurants & Leisure - 1.3%
Marriott International Inc., Senior Notes		3.600	%		4/15/24		320,000		331,429
McDonald’s Corp., Senior Notes		4.700	%		12/9/35		260,000		332,900
McDonald’s Corp., Senior Notes		4.875	%		12/9/45		370,000		483,796
Melco Resorts Finance Ltd., Senior Notes		5.375	%		12/4/29		590,000		607,700	^(a)
Sands China Ltd., Senior Notes		5.125	%		8/8/25		690,000		766,248
Sands China Ltd., Senior Notes		5.400	%		8/8/28		200,000		227,312
Sands China Ltd., Senior Notes		4.375	%		6/18/30		220,000		237,928	^(a)

Total Hotels, Restaurants & Leisure									2,987,313

Household Durables - 0.3%
Lennar Corp., Senior Notes		5.000	%		6/15/27		390,000		445,014
MDC Holdings Inc., Senior Notes		6.000	%		1/15/43		310,000		360,288

Total Household Durables									805,302

Internet & Direct Marketing Retail - 0.2%
Amazon.com Inc., Senior Notes		3.875	%		8/22/37		410,000		513,278

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Specialty Retail - 0.6%
Home Depot Inc., Senior Notes		3.900	%		12/6/28	$	930,000	$	1,112,640
Home Depot Inc., Senior Notes		3.300	%		4/15/40		100,000		114,570
Home Depot Inc., Senior Notes		3.350	%		4/15/50		80,000		91,827

Total Specialty Retail									1,319,037

TOTAL CONSUMER DISCRETIONARY									7,943,080

CONSUMER STAPLES - 3.2%
Beverages - 1.1%
Anheuser-Busch InBev Worldwide Inc., Senior Notes		4.600	%		4/15/48		1,730,000		2,065,780
Coca-Cola Co., Senior Notes		4.125	%		3/25/40		290,000		373,871
Coca-Cola Co., Senior Notes		4.200	%		3/25/50		160,000		212,148
Constellation Brands Inc., Senior Notes		4.250	%		5/1/23		100,000		109,528

Total Beverages									2,761,327

Food & Staples Retailing - 0.2%
Walmart Inc., Senior Notes		4.050	%		6/29/48		360,000		468,645

Food Products - 0.2%
Kraft Heinz Foods Co., Senior Notes		5.000	%		6/4/42		160,000		177,415
Mars Inc., Senior Notes		3.200	%		4/1/30		220,000		251,995	^(a)

Total Food Products									429,410

Tobacco - 1.7%
Altria Group Inc., Senior Notes		3.800	%		2/14/24		290,000		318,340
Altria Group Inc., Senior Notes		4.400	%		2/14/26		500,000		579,941
Altria Group Inc., Senior Notes		4.800	%		2/14/29		1,360,000		1,627,137
Altria Group Inc., Senior Notes		3.875	%		9/16/46		80,000		83,653
Reynolds American Inc., Senior Notes		8.125	%		5/1/40		470,000		653,951
Reynolds American Inc., Senior Notes		7.000	%		8/4/41		510,000		691,228

Total Tobacco									3,954,250

TOTAL CONSUMER STAPLES									7,613,632

ENERGY - 15.0%
Energy Equipment & Services - 0.5%
Halliburton Co., Senior Notes		2.920	%		3/1/30		200,000		203,405
Halliburton Co., Senior Notes		5.000	%		11/15/45		930,000		1,024,807

Total Energy Equipment & Services									1,228,212

Oil, Gas & Consumable Fuels - 14.5%
Apache Corp., Senior Notes		6.000	%		1/15/37		84,000		88,803
Apache Corp., Senior Notes		5.100	%		9/1/40		60,000		58,314
Apache Corp., Senior Notes		5.250	%		2/1/42		160,000		157,184
Apache Corp., Senior Notes		4.750	%		4/15/43		670,000		631,475
BP Capital Markets America Inc., Senior Notes		3.000	%		2/24/50		710,000		701,287

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Oil, Gas & Consumable Fuels - (continued)
Cameron LNG LLC, Senior Secured Notes		3.302	%		1/15/35	$	40,000	$	45,204	^(a)
Cameron LNG LLC, Senior Secured Notes		3.701	%		1/15/39		50,000		56,186	^(a)
Chevron USA Inc., Senior Notes		2.343	%		8/12/50		210,000		200,867
Cimarex Energy Co., Senior Notes		4.375	%		6/1/24		960,000		1,034,081
Cimarex Energy Co., Senior Notes		3.900	%		5/15/27		250,000		257,807
Concho Resources Inc., Senior Notes		3.750	%		10/1/27		110,000		120,843
ConocoPhillips, Senior Notes		6.500	%		2/1/39		1,500,000		2,274,637
Continental Resources Inc., Senior Notes		4.500	%		4/15/23		510,000		515,715
Continental Resources Inc., Senior Notes		4.375	%		1/15/28		430,000		410,345
Devon Energy Corp., Senior Notes		5.850	%		12/15/25		560,000		642,964
Devon Energy Corp., Senior Notes		5.600	%		7/15/41		20,000		21,192
Devon Energy Corp., Senior Notes		5.000	%		6/15/45		210,000		210,663
Ecopetrol SA, Senior Notes		5.875	%		5/28/45		404,000		459,217
Energy Transfer Operating LP, Junior Subordinated Notes (6.750% to 5/15/25 then 5 year Treasury Constant Maturity Rate + 5.134%)		6.750	%		5/15/25		330,000		274,725	^(b)(c)
Energy Transfer Operating LP, Junior Subordinated Notes (7.125% to 5/15/30 then 5 year Treasury Constant Maturity Rate + 5.306%)		7.125	%		5/15/30		880,000		769,252	^(b)(c)
Energy Transfer Operating LP, Senior Notes		4.200	%		9/15/23		510,000		541,624
Energy Transfer Operating LP, Senior Notes		5.250	%		4/15/29		20,000		21,930
Energy Transfer Operating LP, Senior Notes		6.625	%		10/15/36		20,000		21,776
Energy Transfer Operating LP, Senior Notes		5.800	%		6/15/38		60,000		60,917
Enterprise Products Operating LLC, Senior Notes		4.250	%		2/15/48		400,000		436,845
Enterprise Products Operating LLC, Senior Notes		3.950	%		1/31/60		210,000		214,614
Enterprise Products Operating LLC, Senior Notes (5.375% to 2/15/28 then 3 mo. USD LIBOR + 2.570%)		5.375	%		2/15/78		570,000		520,555	^(c)
EOG Resources Inc., Senior Notes		4.375	%		4/15/30		370,000		444,140
Exxon Mobil Corp., Senior Notes		3.482	%		3/19/30		320,000		372,597
Exxon Mobil Corp., Senior Notes		2.995	%		8/16/39		190,000		204,295
Exxon Mobil Corp., Senior Notes		4.227	%		3/19/40		220,000		272,807
Kinder Morgan Inc., Senior Notes		7.800	%		8/1/31		900,000		1,261,242
MEG Energy Corp., Senior Notes		7.000	%		3/31/24		372,000		370,179	^(a)
MPLX LP, Senior Notes		5.250	%		1/15/25		500,000		521,277
MPLX LP, Senior Notes		4.500	%		4/15/38		600,000		638,237
Noble Energy Inc., Senior Notes		6.000	%		3/1/41		660,000		916,084
Noble Energy Inc., Senior Notes		5.250	%		11/15/43		240,000		320,448
Occidental Petroleum Corp., Senior Notes		2.600	%		8/13/21		430,000		432,419
Occidental Petroleum Corp., Senior Notes		2.700	%		8/15/22		1,150,000		1,133,526

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Oil, Gas & Consumable Fuels - (continued)
Occidental Petroleum Corp., Senior Notes		2.700	%		2/15/23	$	20,000	$	19,292
Occidental Petroleum Corp., Senior Notes		3.200	%		8/15/26		250,000		219,720
Occidental Petroleum Corp., Senior Notes		7.875	%		9/15/31		710,000		762,806
Occidental Petroleum Corp., Senior Notes		4.400	%		4/15/46		10,000		8,005
Occidental Petroleum Corp., Senior Notes (3 mo. USD LIBOR + 0.950%)		1.193	%		2/8/21		640,000		632,916	^(c)
Occidental Petroleum Corp., Senior Notes (3 mo. USD LIBOR + 1.450%)		1.730	%		8/15/22		120,000		113,473	^(c)
Parsley Energy LLC/Parsley Finance Corp., Senior Notes		5.625	%		10/15/27		180,000		186,638	^(a)
Parsley Energy LLC/Parsley Finance Corp., Senior Notes		4.125	%		2/15/28		330,000		320,067	^(a)
Petrobras Global Finance BV, Senior Notes		7.375	%		1/17/27		530,000		628,977
Petroleos Mexicanos, Senior Notes		6.875	%		8/4/26		730,000		746,312
Petroleos Mexicanos, Senior Notes		6.625	%		6/15/35		460,000		407,100
Range Resources Corp., Senior Notes		9.250	%		2/1/26		730,000		769,946	^(a)
Southern Natural Gas Co. LLC, Senior Notes		8.000	%		3/1/32		1,500,000		2,145,632
Sunoco Logistics Partners Operations LP, Senior Notes		3.900	%		7/15/26		630,000		661,436
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		7.850	%		2/1/26		760,000		994,849
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		7.250	%		12/1/26		180,000		230,244
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		3.250	%		5/15/30		230,000		250,718	^(a)
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		5.400	%		8/15/41		10,000		12,115
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		4.450	%		8/1/42		860,000		974,645
Transcontinental Gas Pipe Line Co. LLC, Senior Notes		3.950	%		5/15/50		30,000		32,850	^(a)
Western Midstream Operating LP, Senior Notes		5.375	%		6/1/21		180,000		182,700
Western Midstream Operating LP, Senior Notes		4.650	%		7/1/26		1,560,000		1,599,000
Western Midstream Operating LP, Senior Notes		4.750	%		8/15/28		890,000		898,900
Western Midstream Operating LP, Senior Notes		5.050	%		2/1/30		140,000		143,512
Western Midstream Operating LP, Senior Notes		5.450	%		4/1/44		120,000		111,263
Western Midstream Operating LP, Senior Notes		6.250	%		2/1/50		430,000		431,380
Williams Cos. Inc., Senior Notes		7.875	%		9/1/21		952,000		1,020,232
Williams Cos. Inc., Senior Notes		4.550	%		6/24/24		1,130,000		1,270,135
Williams Cos. Inc., Senior Notes		7.750	%		6/15/31		62,000		82,289

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Oil, Gas & Consumable Fuels - (continued)
Williams Cos. Inc., Senior Notes		8.750	%		3/15/32	$	148,000	$	213,824
WPX Energy Inc., Senior Notes		4.500	%		1/15/30		180,000		172,232

Total Oil, Gas & Consumable Fuels									33,879,481

TOTAL ENERGY									35,107,693

FINANCIALS - 30.4%
Banks - 18.4%
Banco Mercantil del Norte SA, Junior Subordinated Notes (7.500% to 6/27/29 then 10 year Treasury Constant Maturity Rate + 5.470%)		7.500	%		6/27/29		200,000		201,688	^(a)(b)(c)
Banco Mercantil del Norte SA, Junior Subordinated Notes (7.625% to 1/6/28 then 10 year Treasury Constant Maturity Rate + 5.353%)		7.625	%		1/10/28		400,000		408,000	^(a)(b)(c)
Banco Mercantil del Norte SA, Junior Subordinated Notes (8.375% to 10/14/30 then 10 year Treasury Constant Maturity Rate + 7.760%)		8.375	%		10/14/30		200,000		211,700	^(a)(b)(c)
Banco Santander SA, Senior Notes		3.490	%		5/28/30		200,000		219,825
Bank of America Corp., Junior Subordinated Notes (6.100% to 3/17/25 then 3 mo. USD LIBOR + 3.898%)		6.100	%		3/17/25		590,000		662,420	^(b)(c)
Bank of America Corp., Junior Subordinated Notes (6.250% to 9/5/24 then 3 mo. USD LIBOR + 3.705%)		6.250	%		9/5/24		880,000		965,132	^(b)(c)
Bank of America Corp., Junior Subordinated Notes (6.500% to 10/23/24 then 3 mo. USD LIBOR + 4.174%)		6.500	%		10/23/24		400,000		452,066	^(b)(c)
Bank of America Corp., Senior Notes		5.875	%		2/7/42		1,340,000		2,006,244
Bank of America Corp., Senior Notes (3.458% to 3/15/24 then 3 mo. USD LIBOR + 0.970%)		3.458	%		3/15/25		110,000		120,419	^(c)
Bank of America Corp., Senior Notes (4.083% to 3/20/50 then 3 mo. USD LIBOR + 3.150%)		4.083	%		3/20/51		250,000		314,218	^(c)
Bank of America Corp., Senior Notes (4.271% to 7/23/28 then 3 mo. USD LIBOR + 1.310%)		4.271	%		7/23/29		690,000		816,651	^(c)
Bank of America Corp., Subordinated Notes		7.750	%		5/14/38		670,000		1,115,908
Barclays Bank PLC, Subordinated Notes		7.625	%		11/21/22		430,000		478,289
Barclays PLC, Junior Subordinated Notes (6.125% to 6/15/26 then 5 year Treasury Constant Maturity Rate + 5.867%)		6.125	%		12/15/25		1,660,000		1,721,918	^(b)(c)
Barclays PLC, Junior Subordinated Notes (7.750% to 9/15/23 then USD 5 year ICE Swap Rate + 4.842%)		7.750	%		9/15/23		320,000		339,062	^(b)(c)

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Banks - (continued)
Barclays PLC, Subordinated Notes (5.088% to 6/20/29 then 3 mo. USD LIBOR + 3.054%)		5.088	%		6/20/30	$	500,000	$	581,613	^(c)
BNP Paribas SA, Junior Subordinated Notes (7.375% to 8/19/25 then USD 5 year ICE Swap Rate + 5.150%)		7.375	%		8/19/25		1,520,000		1,732,944	^(a)(b)(c)
BNP Paribas SA, Junior Subordinated Notes (7.625% to 3/30/21 then USD 5 year ICE Swap Rate + 6.314%)		7.625	%		3/30/21		240,000		247,050	^(a)(b)(c)
Citigroup Inc., Junior Subordinated Bonds (6.250% to 8/15/26 then 3 mo. USD LIBOR + 4.517%)		6.250	%		8/15/26		1,100,000		1,249,418	^(b)(c)
Citigroup Inc., Junior Subordinated Notes (6.300% to 5/15/24 then 3 mo. USD LIBOR + 3.423%)		6.300	%		5/15/24		1,350,000		1,446,997	^(b)(c)
Citigroup Inc., Senior Notes		8.125	%		7/15/39		752,000		1,328,542
Citigroup Inc., Senior Notes		4.650	%		7/23/48		420,000		566,297
Citigroup Inc., Subordinated Notes		4.600	%		3/9/26		490,000		569,967
Citigroup Inc., Subordinated Notes		4.125	%		7/25/28		1,990,000		2,289,066
Citigroup Inc., Subordinated Notes		6.675	%		9/13/43		630,000		986,786
Cooperatieve Rabobank UA, Senior Notes		5.750	%		12/1/43		250,000		367,766
Credit Agricole SA, Junior Subordinated Notes (8.125% to 12/23/25 then USD 5 year ICE Swap Rate + 6.185%)		8.125	%		12/23/25		1,370,000		1,629,444	^(a)(b)(c)
Danske Bank A/S, Senior Notes		5.000	%		1/12/22		740,000		780,431	^(a)
Danske Bank A/S, Senior Notes		5.375	%		1/12/24		530,000		600,637	^(a)
HSBC Holdings PLC, Junior Subordinated Notes (6.375% to 9/17/24 then USD 5 year ICE Swap Rate + 3.705%)		6.375	%		9/17/24		800,000		836,556	^(b)(c)
HSBC Holdings PLC, Junior Subordinated Notes (6.500% to 3/23/28 then USD 5 year ICE Swap Rate + 3.606%)		6.500	%		3/23/28		460,000		496,025	^(b)(c)
HSBC Holdings PLC, Senior Notes		4.950	%		3/31/30		200,000		246,841
HSBC Holdings PLC, Subordinated Notes		7.625	%		5/17/32		110,000		152,827
Intesa Sanpaolo SpA, Senior Notes		4.700	%		9/23/49		200,000		230,780	^(a)
JPMorgan Chase & Co., Junior Subordinated Notes (6.000% to 8/1/23 then 3 mo. USD LIBOR + 3.300%)		6.000	%		8/1/23		700,000		738,683	^(b)(c)
JPMorgan Chase & Co., Senior Notes		6.400	%		5/15/38		1,500,000		2,326,299
JPMorgan Chase & Co., Subordinated Notes		5.625	%		8/16/43		760,000		1,112,350

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Banks - (continued)
Lloyds Banking Group PLC, Junior Subordinated
Notes (6.750% to 6/27/26 then 5 year Treasury Constant Maturity Rate + 4.815%)		6.750	%		6/27/26	$	220,000	$	235,034	^(b)(c)
Lloyds Banking Group PLC, Junior Subordinated Notes (7.500% to 6/27/24 then USD 5 year ICE Swap Rate + 4.760%)		7.500	%		6/27/24		620,000		672,526	^(b)(c)
Lloyds Banking Group PLC, Junior Subordinated Notes (7.500% to 9/27/25 then USD 5 year ICE Swap Rate + 4.496%)		7.500	%		9/27/25		470,000		517,314	^(b)(c)
Natwest Group PLC, Junior Subordinated Notes (7.648% to 9/30/31 then 3 mo. USD LIBOR + 2.500%)		7.648	%		9/30/31		710,000		1,073,676	^(b)(c)
Natwest Group PLC, Junior Subordinated Notes (8.625% to 8/15/21 then USD 5 year ICE Swap Rate + 7.598%)		8.625	%		8/15/21		950,000		1,000,720	^(b)(c)
Natwest Group PLC, Subordinated Notes		6.100	%		6/10/23		840,000		934,555
NatWest Markets NV, Subordinated Notes		7.750	%		5/15/23		820,000		931,668
PNC Bank NA, Subordinated Notes		4.050	%		7/26/28		650,000		769,578
Royal Bank of Scotland Group PLC, Subordinated Notes (3.754% to 11/1/24 then 5 year Treasury Constant Maturity Rate + 2.100%)		3.754	%		11/1/29		420,000		443,498	^(c)
UniCredit SpA, Senior Notes		6.572	%		1/14/22		570,000		606,128	^(a)
UniCredit SpA, Subordinated Notes (5.459% to 6/30/30 then USD 5 year ICE Swap Rate + 4.750%)		5.459	%		6/30/35		340,000		352,749	^(a)(c)
UniCredit SpA, Subordinated Notes (7.296% to 4/2/29 then USD 5 year ICE Swap Rate + 4.914%)		7.296	%		4/2/34		1,610,000		1,883,408	^(a)(c)
Wachovia Capital Trust III Ltd., Junior Subordinated Bonds (the greater of 3 mo. USD LIBOR + 0.930% or 5.570%)		5.570	%		10/1/20		410,000		412,776	^(b)(c)
Wells Fargo & Co., Senior Notes (3.196% to 6/17/26 then 3 mo. USD LIBOR + 1.170%)		3.196	%		6/17/27		720,000		788,078	^(c)
Wells Fargo & Co., Senior Notes (5.013% to 4/4/50 then 3 mo. USD LIBOR + 4.240%)		5.013	%		4/4/51		410,000		561,636	^(c)
Wells Fargo & Co., Subordinated Notes		4.400	%		6/14/46		420,000		503,813
Wells Fargo & Co., Subordinated Notes		4.750	%		12/7/46		530,000		672,205
Westpac Banking Corp., Subordinated Notes		4.421	%		7/24/39		170,000		211,065

Total Banks									43,121,286

Capital Markets - 5.4%
Charles Schwab Corp., Senior Notes		3.850	%		5/21/25		230,000		263,841
CME Group Inc., Senior Notes		5.300	%		9/15/43		750,000		1,100,296

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Capital Markets - (continued)
Credit Suisse Group AG, Junior Subordinated Notes (5.250% to 8/11/27 then 5 year Treasury Constant Maturity Rate + 4.889%)		5.250	%		2/11/27	$	1,660,000	$	1,695,275	^(a)(b)(c)
Credit Suisse Group AG, Senior Notes (4.194% to 4/1/30 then SOFR + 3.730%)		4.194	%		4/1/31		400,000		467,214	^(a)(c)
Credit Suisse USA Inc., Senior Notes		7.125	%		7/15/32		70,000		108,392
Goldman Sachs Group Inc., Senior Notes		6.250	%		2/1/41		2,550,000		3,862,588
Goldman Sachs Group Inc., Senior Notes (2.908% to 6/5/22 then 3 mo. USD LIBOR + 1.053%)		2.908	%		6/5/23		1,100,000		1,143,333	^(c)
Goldman Sachs Group Inc., Subordinated Notes		5.150	%		5/22/45		70,000		93,418
KKR Group Finance Co. III LLC, Senior Notes		5.125	%		6/1/44		1,300,000		1,618,794	^(a)
KKR Group Finance Co. VI LLC, Senior Notes		3.750	%		7/1/29		110,000		126,277	^(a)
Morgan Stanley, Senior Notes		6.375	%		7/24/42		140,000		222,162
Raymond James Financial Inc., Senior Notes		4.650	%		4/1/30		120,000		146,366
Raymond James Financial Inc., Senior Notes		4.950	%		7/15/46		150,000		192,261
S&P Global Inc., Senior Notes		1.250	%		8/15/30		180,000		178,203
S&P Global Inc., Senior Notes		2.300	%		8/15/60		80,000		74,240
UBS AG Stamford, CT, Subordinated Notes		7.625	%		8/17/22		330,000		370,232
UBS Group AG, Junior Subordinated Notes (7.000% to 1/31/24 then USD 5 year ICE Swap Rate + 4.344%)		7.000	%		1/31/24		920,000		997,689	^(a)(b)(c)

Total Capital Markets									12,660,581

Consumer Finance - 0.9%
Navient Corp., Senior Notes		7.250	%		1/25/22		1,430,000		1,504,682
Navient Corp., Senior Notes		6.125	%		3/25/24		480,000		503,095

Total Consumer Finance									2,007,777

Diversified Financial Services - 1.1%
AerCap Ireland Capital DAC/AerCap Global Aviation Trust, Senior Notes		4.500	%		9/15/23		530,000		544,190
Carlyle Finance LLC, Senior Notes		5.650	%		9/15/48		170,000		219,542	^(a)
Carlyle Finance Subsidiary LLC, Senior Notes		3.500	%		9/19/29		230,000		245,721	^(a)
Carlyle Holdings II Finance LLC, Senior Notes		5.625	%		3/30/43		360,000		454,969	^(a)
DAE Funding LLC, Senior Notes		5.000	%		8/1/24		240,000		235,947	^(a)
Global Aircraft Leasing Co. Ltd., Senior Notes (6.500% Cash or 7.250% PIK)		6.500	%		9/15/24		400,000		234,000	^(a)(d)

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Diversified Financial Services - (continued)
ILFC E-Capital Trust I Ltd. GTD ((Highest of 3 mo. USD LIBOR, 10 year Treasury Constant Maturity Rate and 30 year Treasury Constant Maturity Rate) + 1.550%)		3.020	%		12/21/65	$	800,000	$	409,396	^(a)(c)
International Lease Finance Corp., Senior Notes		8.250	%		12/15/20		330,000		336,431

Total Diversified Financial Services									2,680,196

Insurance - 4.3%
American International Group Inc., Senior Notes		6.400	%		12/15/20		1,000,000		1,017,052
American International Group Inc., Senior Notes		4.750	%		4/1/48		80,000		98,066
Fidelity & Guaranty Life Holdings Inc., Senior Notes		5.500	%		5/1/25		360,000		397,800	^(a)
Liberty Mutual Insurance Co., Subordinated Notes		7.875	%		10/15/26		840,000		1,089,836	^(a)
Massachusetts Mutual Life Insurance Co., Subordinated Notes		3.375	%		4/15/50		130,000		135,144	^(a)
Massachusetts Mutual Life Insurance Co., Subordinated Notes		4.900	%		4/1/77		420,000		544,568	^(a)
MetLife Inc., Junior Subordinated Notes (6.400% to 12/15/36 then 3 mo. USD LIBOR + 2.205%)		6.400	%		12/15/36		1,000,000		1,263,288
Nationwide Mutual Insurance Co., Subordinated Notes		9.375	%		8/15/39		520,000		854,954	^(a)
New York Life Insurance Co., Subordinated Notes		4.450	%		5/15/69		140,000		175,758	^(a)
Nippon Life Insurance Co., Subordinated Notes (3.400% to 1/23/30 then 5 year Treasury Constant Maturity Rate + 2.612%)		3.400	%		1/23/50		200,000		215,521	^(a)(c)
Northwestern Mutual Life Insurance Co., Subordinated Notes		3.625	%		9/30/59		180,000		199,244	^(a)
Teachers Insurance & Annuity Association of America, Subordinated Notes		6.850	%		12/16/39		1,050,000		1,587,479	^(a)
Teachers Insurance & Annuity Association of America, Subordinated Notes		4.900	%		9/15/44		660,000		835,408	^(a)
Teachers Insurance & Annuity Association of America, Subordinated Notes		3.300	%		5/15/50		330,000		343,190	^(a)
Travelers Cos. Inc., Senior Notes		6.250	%		6/15/37		400,000		607,887
Trinity Acquisition PLC, Senior Notes		3.500	%		9/15/21		626,000		642,991

Total Insurance									10,008,186

Thrifts & Mortgage Finance - 0.3%
Quicken Loans Inc., Senior Notes		5.750	%		5/1/25		770,000		793,581	^(a)

TOTAL FINANCIALS									71,271,607

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
HEALTH CARE - 12.3%
Biotechnology - 1.7%
AbbVie Inc., Senior Notes		3.200	%		11/21/29	$	1,110,000	$	1,234,177	^(a)
AbbVie Inc., Senior Notes		4.550	%		3/15/35		200,000		250,751	^(a)
AbbVie Inc., Senior Notes		4.050	%		11/21/39		1,160,000		1,359,724	^(a)
Gilead Sciences Inc., Senior Notes		5.650	%		12/1/41		100,000		146,380
Gilead Sciences Inc., Senior Notes		4.500	%		2/1/45		500,000		650,248
Gilead Sciences Inc., Senior Notes		4.750	%		3/1/46		100,000		134,054
Regeneron Pharmaceuticals Inc., Senior Notes		1.750	%		9/15/30		190,000		186,531
Regeneron Pharmaceuticals Inc., Senior Notes		2.800	%		9/15/50		50,000		48,061

Total Biotechnology									4,009,926

Health Care Equipment & Supplies - 0.9%
Abbott Laboratories, Senior Notes		4.900	%		11/30/46		200,000		287,354
Becton Dickinson and Co., Senior Notes		4.685	%		12/15/44		910,000		1,154,429
Becton Dickinson and Co., Senior Notes		4.669	%		6/6/47		450,000		568,862

Total Health Care Equipment & Supplies									2,010,645

Health Care Providers & Services - 7.4%
Anthem Inc., Senior Notes		4.375	%		12/1/47		230,000		290,446
Centene Corp., Senior Notes		4.750	%		1/15/25		370,000		381,100
Centene Corp., Senior Notes		4.250	%		12/15/27		160,000		167,570
Centene Corp., Senior Notes		4.625	%		12/15/29		560,000		615,174
Centene Corp., Senior Notes		3.375	%		2/15/30		790,000		823,824
Cigna Corp., Senior Notes		4.125	%		11/15/25		540,000		624,814
Cigna Corp., Senior Notes		4.800	%		8/15/38		540,000		683,176
Cigna Corp., Senior Notes		3.200	%		3/15/40		220,000		235,023
CommonSpirit Health, Secured Notes		4.350	%		11/1/42		60,000		66,385
CVS Health Corp., Senior Notes		4.100	%		3/25/25		1,460,000		1,665,935
CVS Health Corp., Senior Notes		4.300	%		3/25/28		1,610,000		1,896,586
CVS Health Corp., Senior Notes		4.780	%		3/25/38		2,060,000		2,534,435
CVS Health Corp., Senior Notes		5.125	%		7/20/45		540,000		700,281
CVS Health Corp., Senior Notes		5.050	%		3/25/48		930,000		1,214,706
Dartmouth-Hitchcock Health, Secured Bonds		4.178	%		8/1/48		150,000		181,177
DH Europe Finance II Sarl, Senior Notes		3.250	%		11/15/39		70,000		78,987
DH Europe Finance II Sarl, Senior Notes		3.400	%		11/15/49		10,000		11,648
HCA Inc., Senior Secured Notes		4.125	%		6/15/29		340,000		392,167
HCA Inc., Senior Secured Notes		5.125	%		6/15/39		170,000		211,720
HCA Inc., Senior Secured Notes		5.500	%		6/15/47		350,000		445,406
HCA Inc., Senior Secured Notes		5.250	%		6/15/49		530,000		667,674
Humana Inc., Senior Notes		4.800	%		3/15/47		420,000		559,338
Magellan Health Inc., Senior Notes		4.900	%		9/22/24		1,070,000		1,116,700

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Health Care Providers & Services - (continued)
Orlando Health Obligated Group, Senior Notes		4.089	%		10/1/48	$	270,000	$	305,464
UnitedHealth Group Inc., Senior Notes		3.700	%		12/15/25		250,000		288,211
UnitedHealth Group Inc., Senior Notes		3.850	%		6/15/28		540,000		639,306
UnitedHealth Group Inc., Senior Notes		3.500	%		8/15/39		220,000		256,336
UnitedHealth Group Inc., Senior Notes		4.750	%		7/15/45		220,000		300,362

Total Health Care Providers & Services									17,353,951

Pharmaceuticals - 2.3%
Bausch Health Cos. Inc., Senior Notes		5.000	%		1/30/28		130,000		128,538	^(a)
Bausch Health Cos. Inc., Senior Notes		5.250	%		1/30/30		130,000		129,364	^(a)
Bristol-Myers Squibb Co., Senior Notes		3.400	%		7/26/29		1,530,000		1,788,985
Bristol-Myers Squibb Co., Senior Notes		5.000	%		8/15/45		400,000		571,323
Pfizer Inc., Senior Notes		7.200	%		3/15/39		560,000		939,941
Teva Pharmaceutical Finance Netherlands III BV, Senior Notes		7.125	%		1/31/25		200,000		216,838	^(a)
Wyeth LLC, Senior Notes		5.950	%		4/1/37		1,100,000		1,632,242
Zoetis Inc., Senior Notes		4.700	%		2/1/43		40,000		53,115

Total Pharmaceuticals									5,460,346

TOTAL HEALTH CARE									28,834,868

INDUSTRIALS - 8.0%
Aerospace & Defense - 3.4%
Avolon Holdings Funding Ltd., Senior Notes		5.125	%		10/1/23		820,000		798,315	^(a)
Boeing Co., Senior Notes		2.800	%		3/1/24		500,000		509,770
Boeing Co., Senior Notes		3.100	%		5/1/26		2,190,000		2,195,041
Boeing Co., Senior Notes		5.705	%		5/1/40		330,000		384,412
Boeing Co., Senior Notes		5.805	%		5/1/50		220,000		264,540
Hexcel Corp., Senior Notes		3.950	%		2/15/27		1,000,000		1,075,848
Huntington Ingalls Industries Inc., Senior Notes		3.483	%		12/1/27		320,000		349,777
Lockheed Martin Corp., Senior Notes		4.500	%		5/15/36		50,000		64,794
Lockheed Martin Corp., Senior Notes		4.700	%		5/15/46		200,000		274,614
Northrop Grumman Systems Corp., Senior Notes		7.875	%		3/1/26		1,390,000		1,844,605
United Technologies Corp., Senior Notes		4.625	%		11/16/48		180,000		237,562

Total Aerospace & Defense									7,999,278

Air Freight & Logistics - 0.5%
United Parcel Service Inc., Senior Notes		6.200	%		1/15/38		700,000		1,067,522

Airlines - 1.1%
Delta Air Lines Inc., Senior Notes		2.900	%		10/28/24		840,000		771,818
Delta Air Lines Inc., Senior Notes		3.750	%		10/28/29		230,000		205,494
Delta Air Lines Inc., Senior Secured Notes		7.000	%		5/1/25		420,000		460,389	^(a)
Delta Air Lines Pass-Through Certificates Trust		8.021	%		8/10/22		55,462		52,131

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Airlines - (continued)
Southwest Airlines Co., Senior Notes		4.750	%		5/4/23	$	810,000	$	863,528
Southwest Airlines Co., Senior Notes		5.125	%		6/15/27		290,000		316,969

Total Airlines									2,670,329

Building Products - 0.5%
Carrier Global Corp., Senior Notes		2.722	%		2/15/30		570,000		599,293	^(a)
Carrier Global Corp., Senior Notes		3.377	%		4/5/40		270,000		281,671	^(a)
Carrier Global Corp., Senior Notes		3.577	%		4/5/50		320,000		340,301	^(a)

Total Building Products									1,221,265

Commercial Services & Supplies - 0.5%
California Institute of Technology, Senior Notes		3.650	%		9/1/2119		180,000		201,115
Waste Connections Inc., Senior Notes		4.250	%		12/1/28		750,000		903,728

Total Commercial Services & Supplies									1,104,843

Industrial Conglomerates - 0.8%
General Electric Co., Senior Notes		6.750	%		3/15/32		330,000		413,797
General Electric Co., Senior Notes		6.875	%		1/10/39		1,098,000		1,400,859
General Electric Co., Senior Notes		4.250	%		5/1/40		110,000		111,259

Total Industrial Conglomerates									1,925,915

Machinery - 0.2%
Caterpillar Inc., Senior Notes		4.750	%		5/15/64		360,000		515,144
Otis Worldwide Corp., Senior Notes		3.112	%		2/15/40		50,000		53,793	^(a)

Total Machinery									568,937

Road & Rail - 0.3%
Union Pacific Corp., Senior Notes		4.375	%		11/15/65		530,000		672,557
Union Pacific Corp., Senior Notes		3.750	%		2/5/70		30,000		34,221

Total Road & Rail									706,778

Trading Companies & Distributors - 0.7%
Aircastle Ltd., Senior Notes		5.250	%		8/11/25		1,000,000		982,171	^(a)
Aviation Capital Group LLC, Senior Notes		5.500	%		12/15/24		250,000		257,412	^(a)
Aviation Capital Group LLC, Senior Notes		4.125	%		8/1/25		340,000		328,533	^(a)

Total Trading Companies & Distributors									1,568,116

TOTAL INDUSTRIALS									18,832,983

INFORMATION TECHNOLOGY - 3.2%
Communications Equipment - 0.4%
L3Harris Technologies Inc., Senior Notes		4.854	%		4/27/35		430,000		570,802
L3Harris Technologies Inc., Senior Notes		5.054	%		4/27/45		340,000		456,107

Total Communications Equipment									1,026,909

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
IT Services - 0.2%
International Business Machines Corp., Senior Notes		3.500	%		5/15/29	$	200,000	$	232,314
S&P Global Inc., Senior Notes		3.250	%		12/1/49		110,000		128,130

Total IT Services									360,444

Semiconductors & Semiconductor Equipment - 1.3%
Broadcom Inc., Senior Notes		4.150	%		11/15/30		440,000		497,048
Broadcom Inc., Senior Notes		4.300	%		11/15/32		580,000		669,297
Intel Corp., Senior Notes		4.900	%		7/29/45		220,000		302,720
Intel Corp., Senior Notes		4.750	%		3/25/50		20,000		27,799
Intel Corp., Senior Notes		4.950	%		3/25/60		100,000		144,666
NVIDIA Corp., Senior Notes		3.500	%		4/1/40		100,000		115,681
NVIDIA Corp., Senior Notes		3.500	%		4/1/50		300,000		341,298
NVIDIA Corp., Senior Notes		3.700	%		4/1/60		120,000		141,132
NXP BV / NXP Funding LLC / NXP USA Inc., Senior Notes		3.400	%		5/1/30		160,000		177,734	^(a)
QUALCOMM Inc., Senior Notes		4.300	%		5/20/47		70,000		89,597
Texas Instruments Inc., Senior Notes		3.875	%		3/15/39		430,000		540,533

Total Semiconductors & Semiconductor Equipment									3,047,505

Software - 1.0%
Microsoft Corp., Senior Notes		4.250	%		2/6/47		1,520,000		2,054,029
ServiceNow Inc., Senior Notes		1.400	%		9/1/30		150,000		147,922

Total Software									2,201,951

Technology Hardware, Storage & Peripherals - 0.3%
Dell International LLC/EMC Corp., Senior Secured Notes		4.420	%		6/15/21		726,000		744,848	^(a)

TOTAL INFORMATION TECHNOLOGY									7,381,657

MATERIALS - 1.9%
Chemicals - 0.1%
Ecolab Inc., Senior Notes		4.800	%		3/24/30		130,000		165,148

Metals & Mining - 1.8%
ArcelorMittal SA, Senior Notes		4.550	%		3/11/26		330,000		361,871
Barrick Gold Corp., Senior Notes		5.250	%		4/1/42		350,000		481,409
BHP Billiton Finance USA Ltd., Senior Notes (6.750% to 10/19/25, then USD 5 year ICE Swap Rate + 5.093% to 10/19/45, then USD 5 year ICE Swap Rate + 5.843%)		6.750	%		10/19/75		780,000		933,344	^(a)(c)
First Quantum Minerals Ltd., Senior Notes		7.250	%		5/15/22		260,000		259,929	^(a)
First Quantum Minerals Ltd., Senior Notes		7.250	%		4/1/23		600,000		610,665	^(a)
Glencore Funding LLC, Senior Notes		4.125	%		3/12/24		300,000		326,577	^(a)

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Metals & Mining - (continued)
Glencore Funding LLC, Senior Notes		4.000	%		3/27/27	$	590,000	$	648,776	^(a)
Yamana Gold Inc., Senior Notes		4.625	%		12/15/27		550,000		598,385

Total Metals & Mining									4,220,956

TOTAL MATERIALS									4,386,104

REAL ESTATE - 2.0%
Equity Real Estate Investment Trusts (REITs) - 1.8%
Host Hotels & Resorts LP, Senior Notes		3.500	%		9/15/30		70,000		69,327
MPT Operating Partnership LP/MPT Finance Corp., Senior Notes		5.000	%		10/15/27		400,000		423,710
MPT Operating Partnership LP/MPT Finance Corp., Senior Notes		4.625	%		8/1/29		270,000		288,678
Ventas Realty LP, Senior Notes		4.400	%		1/15/29		540,000		606,367
Vornado Realty LP, Senior Notes		3.500	%		1/15/25		1,000,000		1,038,933
Welltower Inc., Senior Notes		3.950	%		9/1/23		1,050,000		1,137,355
Welltower Inc., Senior Notes		4.125	%		3/15/29		510,000		574,266

Total Equity Real Estate Investment Trusts (REITs)									4,138,636

Real Estate Management & Development - 0.2%
Security Capital Group Inc., Senior Notes		7.700	%		6/15/28		460,000		568,383

TOTAL REAL ESTATE									4,707,019

UTILITIES - 4.6%
Electric Utilities - 4.6%
Berkshire Hathaway Energy Co., Senior Notes		6.125	%		4/1/36		1,000,000		1,443,620
CenterPoint Energy Houston Electric LLC, Senior Secured Bonds		4.500	%		4/1/44		530,000		703,942
Commonwealth Edison Co., First Mortgage Bonds		6.450	%		1/15/38		600,000		911,122
Exelon Corp., Senior Notes		4.050	%		4/15/30		190,000		225,591
FirstEnergy Corp., Senior Notes		3.900	%		7/15/27		480,000		527,556
FirstEnergy Corp., Senior Notes		7.375	%		11/15/31		3,040,000		4,309,327
Jersey Central Power & Light Co., Senior Notes		4.300	%		1/15/26		170,000		198,237	^(a)
MidAmerican Energy Co., First Mortgage Bonds		3.650	%		4/15/29		240,000		286,577
Pacific Gas and Electric Co., Secured Bonds		1.750	%		6/16/22		140,000		140,478
Pacific Gas and Electric Co., Secured Bonds		4.250	%		8/1/23		260,000		277,809
Pacific Gas and Electric Co., Secured Bonds		2.100	%		8/1/27		200,000		194,429
Pacific Gas and Electric Co., Secured Bonds		2.500	%		2/1/31		130,000		125,196
Pacific Gas and Electric Co., Secured Bonds		3.300	%		8/1/40		30,000		28,125

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
Electric Utilities - (continued)
Southern California Edison Co., First Mortgage Bonds		4.125	%		3/1/48	$	480,000	$	538,167
Virginia Electric & Power Co., Senior Notes		8.875	%		11/15/38		500,000		909,847

TOTAL UTILITIES									10,820,023

TOTAL CORPORATE BONDS & NOTES (Cost - $190,560,848)									224,506,569

SOVEREIGN BONDS - 1.1%
Argentina - 0.4%
Argentine Republic Government International Bond, Senior Notes		6.875	%		1/11/48		260,000		112,713	*^(e)
Provincia de Buenos Aires, Senior Notes		9.125	%		3/16/24		1,930,000		916,769	*^(a)(e)

Total Argentina									1,029,482

Bermuda - 0.2%
Bermuda Government International Bond, Senior Notes		2.375	%		8/20/30		470,000		480,575	^(a)

Ghana - 0.1%
Ghana Government International Bond, Senior Notes		8.950	%		3/26/51		300,000		279,900	^(a)

Nigeria - 0.1%
Nigeria Government International Bond, Senior Notes		7.696	%		2/23/38		220,000		214,753	^(a)

Qatar - 0.3%
Qatar Government International Bond, Senior Notes		4.817	%		3/14/49		410,000		562,032	^(a)

TOTAL SOVEREIGN BONDS (Cost - $3,660,980)									2,566,742


						SHARES
PREFERRED STOCKS - 1.0%
FINANCIALS - 1.0%
Banks - 0.9%
GMAC Capital Trust I (3 mo. USD LIBOR + 5.785%)		6.065	%				85,800		2,104,674	^(c)

Insurance - 0.1%
Delphi Financial Group Inc. (3 mo. USD LIBOR + 3.190%)		3.470	%				9,325		188,831	^(c)

TOTAL PREFERRED STOCKS (Cost - $2,309,699)									2,293,505

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020


SECURITY	RATE			MATURITY DATE		FACE AMOUNT		VALUE
MUNICIPAL BONDS - 0.6%
California - 0.2%
Morongo Band of Mission Indians, CA, Revenue, Tribal Economic Development, Series A		7.000	%		10/1/39	$	500,000	$	583,315	^(a)

Florida - 0.1%
Sumter Landing, FL, Community Development District Recreational Revenue, Taxable Community Development District		4.172	%		10/1/47		260,000		296,044

Illinois - 0.3%
Illinois State, GO, Taxable, Build America Bonds, Series 2010-3		6.725	%		4/1/35		530,000		594,962

TOTAL MUNICIPAL BONDS (Cost - $1,353,625)									1,474,321

U.S. GOVERNMENT & AGENCY OBLIGATIONS - 0.1%
U.S. Government Obligations - 0.1%
U.S. Treasury Notes (Cost - $208,494)		0.625	%		8/15/30		210,000		208,606

SENIOR LOANS - 0.1%
INDUSTRIALS - 0.1%
Airlines - 0.1%
Delta Air Lines Inc., Initial Term Loan (3 mo. USD LIBOR + 4.750%) (Cost - $194,515)		5.750	%		4/27/23		200,000		199,906	^(c)(f)(g)

TOTAL INVESTMENTS BEFORE SHORT-TERM INVESTMENTS (Cost - $198,288,161)									231,249,649


						SHARES
SHORT-TERM INVESTMENTS - 0.2%
Dreyfus Government Cash Management, Institutional Shares (Cost - $428,046)		0.038	%				428,046		428,046

TOTAL INVESTMENTS - 98.9% (Cost - $198,716,207)									231,677,695
Other Assets in Excess of Liabilities - 1.1%									2,525,520

TOTAL NET ASSETS - 100.0%								$	234,203,215

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC.


Schedule of investments (unaudited) (cont’d)		August 31, 2020

*	Non-income producing security.

(a)

Security is exempt from registration under Rule 144A of the Securities Act of 1933. This security may be resold in transactions that are exempt from registration, normally to qualified institutional buyers. This security has been deemed liquid pursuant to guidelines approved by the Board of Directors.

(b)	Security has no maturity date. The date shown represents the next call date.

(c)

Variable rate security. Interest rate disclosed is as of the most recent information available. Certain variable rate securities are not based on a published reference rate and spread but are determined by the issuer or agent and are based on current market conditions. These securities do not indicate a reference rate and spread in their description above.

(d)	Payment-in-kind security for which the issuer has the option at each interest payment date of making interest payments in cash or additional securities.

(e)	The coupon payment on these securities is currently in default as of August 31, 2020.

(f)	Interest rates disclosed represent the effective rates on senior loans. Ranges in interest rates are attributable to multiple contracts under the same loan.

(g)	Senior loans may be considered restricted in that the Fund ordinarily is contractually obligated to receive approval from the agent bank and/or borrower prior to the disposition of a senior loan.

Abbreviation(s) used in this schedule:



GO		— General Obligation
GTD		— Guaranteed
ICE		— Intercontinental Exchange
LIBOR		— London Interbank Offered Rate
PIK		— Payment-In-Kind
SOFR		— Secured Overnight Financing Rate
USD		— United States Dollar

At August 31, 2020, the Fund had the following open futures contracts:


	Number of Contracts		Expiration Date		Notional Amount		Market Value		Unrealized Appreciation (Depreciation)
Contracts to Buy:
U.S. Treasury 2-Year Notes		60		12/20	$	13,253,949	$	13,256,719	$	2,770
U.S. Treasury 5-Year Notes		9		12/20		1,133,458		1,134,282		824
U.S. Treasury 10-Year Notes		52		12/20		7,234,727		7,241,000		6,273
U.S. Treasury Ultra Long-Term Bonds		9		12/20		2,008,284		1,988,156		(20,128	)

										(10,261	)

Contracts to Sell:
U.S. Treasury Long-Term Bonds		111		12/20		19,722,013		19,504,781		217,232

Net unrealized appreciation on open futures contracts									$	206,971

This Schedule of Investments is unaudited and is intended to provide information about the Fund’s investments as of the date of the schedule. Other information regarding the Fund is available in the Fund’s most recent annual or semi-annual shareholder report.

See Notes to Schedule of Investments.

Western Asset Investment Grade Defined Opportunity Trust Inc. 2020 Quarterly Report

Notes to Schedule of Investments (unaudited)

1. Organization and significant accounting policies

Western Asset Investment Grade Defined Opportunity Trust Inc. (the “Fund”) was incorporated in Maryland on April 24, 2009 and is registered as a non-diversified, limited-term, closed-end management investment company under the Investment Company Act of 1940, as amended (the “1940 Act”). The Fund’s primary investment objective is to provide current income and then to liquidate and distribute substantially all of the Fund’s net assets to stockholders on or about December 2, 2024. As a secondary investment objective, the Fund will seek capital appreciation. There can be no assurance the Fund will achieve its investment objectives. The Fund seeks to achieve its investment objectives by investing, under normal market conditions, at least 80% of its net assets in investment grade corporate fixed-income securities of varying maturities. On April 1, 2020, the Board of Directors of the Fund approved amendments to the Fund’s bylaws. The amended and restated bylaws were subsequently filed on Form 8-K and are available on the Securities and Exchange Commission’s website at www.sec.gov.

The following are significant accounting policies consistently followed by the Fund and are in conformity with U.S. generally accepted accounting principles (“GAAP”).

(a) Investment valuation. The valuations for fixed income securities (which may include, but are not limited to, corporate, government, municipal, mortgage-backed, collateralized mortgage obligations and asset-backed securities) and certain derivative instruments are typically the prices supplied by independent third party pricing services, which may use market prices or broker/dealer quotations or a variety of valuation techniques and methodologies. The independent third party pricing services use inputs that are observable such as issuer details, interest rates, yield curves, prepayment speeds, credit risks/spreads, default rates and quoted prices for similar securities. Investments in open-end funds are valued at the closing net asset value per share of each fund on the day of valuation. Futures contracts are valued daily at the settlement price established by the board of trade or exchange on which they are traded. Equity securities for which market quotations are available are valued at the last reported sales price or official closing price on the primary market or exchange on which they trade. When the Fund holds securities or other assets that are denominated in a foreign currency, the Fund will normally use the currency exchange rates as of 4:00 p.m. (Eastern Time). If independent third party pricing services are unable to supply prices for a portfolio investment, or if the prices supplied are deemed by the manager to be unreliable, the market price may be determined by the manager using quotations from one or more broker/dealers or at the transaction price if the security has recently been purchased and no value has yet been obtained from a pricing service or pricing broker. When reliable prices are not readily available, such as when the value of a security has been significantly affected by events after the close of the exchange or market on which the security is principally traded, but before the Fund calculates its net asset value, the Fund values these securities as determined in accordance with procedures approved by the Fund’s Board of Directors.

Notes to Schedule of Investments (unaudited) (continued)

The Board of Directors is responsible for the valuation process and has delegated the supervision of the daily valuation process to the Legg Mason North Atlantic Fund Valuation Committee (the “Valuation Committee”). The Valuation Committee, pursuant to the policies adopted by the Board of Directors, is responsible for making fair value determinations, evaluating the effectiveness of the Fund’s pricing policies, and reporting to the Board of Directors. When determining the reliability of third party pricing information for investments owned by the Fund, the Valuation Committee, among other things, conducts due diligence reviews of pricing vendors, monitors the daily change in prices and reviews transactions among market participants.

The Valuation Committee will consider pricing methodologies it deems relevant and appropriate when making fair value determinations. Examples of possible methodologies include, but are not limited to, multiple of earnings; discount from market of a similar freely traded security; discounted cash-flow analysis; book value or a multiple thereof; risk premium/yield analysis; yield to maturity; and/or fundamental investment analysis. The Valuation Committee will also consider factors it deems relevant and appropriate in light of the facts and circumstances. Examples of possible factors include, but are not limited to, the type of security; the issuer’s financial statements; the purchase price of the security; the discount from market value of unrestricted securities of the same class at the time of purchase; analysts’ research and observations from financial institutions; information regarding any transactions or offers with respect to the security; the existence of merger proposals or tender offers affecting the security; the price and extent of public trading in similar securities of the issuer or comparable companies; and the existence of a shelf registration for restricted securities.

For each portfolio security that has been fair valued pursuant to the policies adopted by the Board of Directors, the fair value price is compared against the last available and next available market quotations. The Valuation Committee reviews the results of such back testing monthly and fair valuation occurrences are reported to the Board of Directors quarterly.

The Fund uses valuation techniques to measure fair value that are consistent with the market approach and/or income approach, depending on the type of security and the particular circumstance. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable securities. The income approach uses valuation techniques to discount estimated future cash flows to present value.

Notes to Schedule of Investments (unaudited) (continued)

GAAP establishes a disclosure hierarchy that categorizes the inputs to valuation techniques used to value assets and liabilities at measurement date. These inputs are summarized in the three broad levels listed below:

•

Level 1 – quoted prices in active markets for identical investments

•

Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

•

Level 3 – significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

The inputs or methodologies used to value securities are not necessarily an indication of the risk associated with investing in those securities.

The following is a summary of the inputs used in valuing the Fund’s assets and liabilities carried at fair value:


ASSETS
DESCRIPTION	QUOTED PRICES (LEVEL 1)		OTHER SIGNIFICANT OBSERVABLE INPUTS (LEVEL 2)		SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3)		TOTAL
Long-Term Investments†:
Corporate Bonds & Notes		—	$	224,506,569		—	$	224,506,569
Sovereign Bonds		—		2,566,742		—		2,566,742
Preferred Stocks:
Financials	$	2,104,674		188,831		—		2,293,505
Municipal Bonds		—		1,474,321		—		1,474,321
U.S. Government & Agency Obligations		—		208,606		—		208,606
Senior Loans		—		199,906		—		199,906

Total Long-Term Investments		2,104,674		229,144,975		—		231,249,649

Short-Term Investments†		428,046		—		—		428,046

Total Investments	$	2,532,720	$	229,144,975		—	$	231,677,695

Other Financial Instruments:
Futures Contracts	$	227,099		—		—	$	227,099

Total	$	2,759,819	$	229,144,975		—	$	231,904,794


LIABILITIES
DESCRIPTION	QUOTED PRICES (LEVEL 1)		OTHER SIGNIFICANT OBSERVABLE INPUTS (LEVEL 2)		SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3)		TOTAL
Other Financial Instruments:
Futures Contracts	$	20,128		—		—	$	20,128

†	See Schedule of Investments for additional detailed categorizations.