Master Investment Portfolio NPORT-P U.S. Total Bond Index Master Portfolio (Mar 2020 report)

Schedule of Investments  (unaudited) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Asset-Backed Securities — 0.5%
American Express Credit Account Master Trust, Series 2019-1, Class A, 2.87%, 10/15/24	$	4,530	$	4,667,612
Americredit Automobile Receivables Trust, Series 2018-1, Class D, 3.82%, 03/18/24		4,000		3,876,947
Citibank Credit Card Issuance Trust:
Series 2014-A5, Class A5, 2.68%, 06/07/23		6,870		6,931,430
Series 2016-A2, Class A2, 2.19%, 11/20/23		9,750		9,907,110
Series 2017-A3, Class A3, 1.92%, 04/07/22		3,600		3,599,640
Ford Credit Auto Owner Trust, Series 2017-C, Class A4, 2.16%, 03/15/23		3,250		3,216,883
Honda Auto Receivables Owner Trust, Series 2017-4, Class A4, 2.21%, 03/21/24		6,525		6,544,402
Nissan Auto Lease Trust, Series 2020-A, Class A4, 1.88%, 04/15/25		930		908,785
Nissan Auto Receivables Owner Trust, Series 2019-B, Class A4, 2.54%, 12/15/25		6,000		6,219,911
Synchrony Credit Card Master Note Trust, Series 2018-2, Class A, 3.47%, 05/15/26		3,415		3,510,625
Total Asset-Backed Securities — 0.5% (Cost — $48,430,884)				49,383,345
Corporate Bonds — 24.5%
Aerospace & Defense — 0.5%
Boeing Co.:
2.30%, 08/01/21(a)		300		290,278
2.35%, 10/30/21		75		71,070
2.13%, 03/01/22		250		235,017
1.88%, 06/15/23(a)		500		459,411
2.70%, 02/01/27		230		210,901
2.80%, 03/01/27		1,000		888,306
3.20%, 03/01/29(a)		1,000		921,277
2.95%, 02/01/30(a)		570		534,227
6.13%, 02/15/33(a)		100		109,614
3.25%, 02/01/35(a)		1,600		1,383,687
3.30%, 03/01/35		65		56,777
3.38%, 06/15/46		250		212,336
3.85%, 11/01/48		1,000		900,481
3.90%, 05/01/49		750		676,855
3.75%, 02/01/50(a)		540		492,812
3.95%, 08/01/59		500		448,745
Carlisle Cos., Inc., 2.75%, 03/01/30		100		87,288

Security	Par (000)		Value
Aerospace & Defense (continued)
Embraer Netherlands Finance BV:
5.05%, 06/15/25	$	250	$	211,641
5.40%, 02/01/27(a)		500		437,500
General Dynamics Corp.:
3.00%, 05/11/21		3,000		3,023,083
3.88%, 07/15/21(a)		50		50,838
2.25%, 11/15/22(a)		500		502,941
3.38%, 05/15/23		500		512,826
3.50%, 05/15/25(a)		1,000		1,065,446
2.13%, 08/15/26(a)		500		500,199
3.75%, 05/15/28		500		531,397
4.25%, 04/01/50		500		629,596
L3Harris Technologies, Inc.:
3.85%, 06/15/23(b)		1,500		1,566,223
3.83%, 04/27/25		500		520,188
4.40%, 06/15/28(b)		250		266,124
2.90%, 12/15/29		200		186,655
4.85%, 04/27/35		1,065		1,152,394
Lockheed Martin Corp.:
3.35%, 09/15/21		1,000		1,017,360
3.55%, 01/15/26(a)		2,250		2,410,623
3.60%, 03/01/35(a)		65		71,077
4.07%, 12/15/42		100		115,491
3.80%, 03/01/45(a)		1,500		1,628,344
4.70%, 05/15/46(a)		750		922,690
4.09%, 09/15/52(a)		500		600,778
Northrop Grumman Corp.:
2.55%, 10/15/22		2,000		1,999,459
3.25%, 08/01/23(a)		500		511,916
2.93%, 01/15/25		1,000		1,015,058
3.25%, 01/15/28		2,000		2,078,238
4.75%, 06/01/43(a)		375		449,301
4.03%, 10/15/47		1,500		1,722,128
Raytheon Co.:
2.50%, 12/15/22		500		511,736
4.88%, 10/15/40		250		306,614
4.70%, 12/15/41		100		116,614
Rockwell Collins, Inc.:
2.80%, 03/15/22		1,000		1,010,457
3.50%, 03/15/27		1,000		1,033,467
4.35%, 04/15/47(a)		1,000		1,091,546
United Technologies Corp.:
3.65%, 08/16/23		1,250		1,314,389
3.13%, 05/04/27(a)		1,000		1,017,969
4.13%, 11/16/28(a)		3,000		3,293,258
4.45%, 11/16/38		500		569,155
5.70%, 04/15/40(a)		300		383,863
4.50%, 06/01/42		1,700		1,963,803
4.15%, 05/15/45		500		543,263
3.75%, 11/01/46		750		785,112
4.05%, 05/04/47(a)		500		548,478
4.63%, 11/16/48(a)		1,250		1,477,208
				49,645,528

1

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Air Freight & Logistics — 0.1%
FedEx Corp.:
3.40%, 01/14/22	$	1,000	$	1,005,763
4.00%, 01/15/24		250		260,852
3.25%, 04/01/26(a)		545		551,455
3.30%, 03/15/27(a)		500		496,953
3.10%, 08/05/29		1,000		981,764
3.90%, 02/01/35		190		185,563
3.88%, 08/01/42(a)		50		43,760
4.75%, 11/15/45		160		153,323
4.55%, 04/01/46(a)		750		713,038
4.40%, 01/15/47(a)		500		451,426
4.05%, 02/15/48		1,000		878,981
4.95%, 10/17/48(a)		1,000		977,248
United Parcel Service, Inc.:
2.05%, 04/01/21		500		499,388
2.45%, 10/01/22		500		502,053
2.50%, 04/01/23(a)		2,000		2,065,204
2.40%, 11/15/26(a)		2,000		2,033,494
3.05%, 11/15/27(a)		500		510,593
6.20%, 01/15/38(a)		100		130,127
3.63%, 10/01/42		250		238,403
3.40%, 11/15/46		220		214,777
3.75%, 11/15/47(a)		500		520,607
4.25%, 03/15/49(a)		1,000		1,160,543
3.40%, 09/01/49		300		301,531
				14,876,846
Airlines — 0.1%
American Airlines Pass-Through Trust:
Series 2013-2, Class A, 4.95%, 07/15/24		94		95,898
Series 2016-2, Class AA, 3.20%, 12/15/29		427		464,437
Series 2019-1, Class AA, 3.15%, 08/15/33		985		886,829
Continental Airlines Pass Through Trust, Series 2-A, 4.00%, 04/29/26		350		338,078
Continental Airlines Pass-Through Trust, Series 2012-1, Class A, 4.15%, 10/11/25		34		36,642
Delta Air Lines Pass-Through Trust, Series 2019-1, Class AA, 3.20%, 10/25/25		1,000		976,229
Delta Air Lines, Inc., 3.75%, 10/28/29		1,000		805,026
JetBlue Pass Through Trust, Series 2019-1, Class AA, 2.75%, 11/15/33		940		822,359
Southwest Airlines Co., 2.63%, 02/10/30		2,000		1,676,239

Security	Par (000)		Value
Airlines (continued)
United Airlines Pass-Through Trust:
Series 2013-1, Class A, 4.30%, 02/15/27	$	146	$	145,513
Series 2016-1, Class AA, 3.10%, 01/07/30		434		402,679
Series AA, 2.70%, 11/01/33		1,350		1,214,709
US Airways Pass Through Trust, Series 2013-1 Class A, 3.95%, 05/15/27		163		162,993
				8,027,631
Auto Components — 0.2%
American Honda Finance Corp.:
1.65%, 07/12/21		750		741,226
1.95%, 05/20/22		300		295,655
2.05%, 01/10/23		895		881,785
1.95%, 05/10/23		685		668,023
3.63%, 10/10/23(a)		2,000		2,032,056
2.40%, 06/27/24		1,000		985,568
2.15%, 09/10/24(a)		1,000		976,038
2.35%, 01/08/27(a)		500		471,045
Aptiv PLC, 4.40%, 10/01/46(a)		500		384,516
BorgWarner, Inc., 3.38%, 03/15/25(a)		70		68,498
Daimler Finance North America LLC, 8.50%, 01/18/31		600		810,929
Lear Corp., 4.25%, 05/15/29		1,000		888,778
PACCAR Financial Corp., 2.00%, 09/26/22		2,180		2,147,466
Toyota Motor Corp.:
2.36%, 07/02/24		500		499,806
2.76%, 07/02/29(a)		185		186,227
Toyota Motor Credit Corp.:
1.90%, 04/08/21(a)		900		895,841
2.95%, 04/13/21(a)		500		501,894
2.60%, 01/11/22(a)		250		251,288
3.30%, 01/12/22		2,000		2,022,182
2.63%, 01/10/23(a)		2,000		2,001,536
2.00%, 10/07/24		3,000		2,913,329
3.65%, 01/08/29		1,000		1,035,389
				21,659,075
Automobiles — 0.1%
Ford Motor Co.:
4.35%, 12/08/26		517		403,405
7.45%, 07/16/31		67		48,240
4.75%, 01/15/43		325		184,438
5.29%, 12/08/46		360		214,200
General Motors Co.:
4.88%, 10/02/23		600		534,603
4.00%, 04/01/25(a)		2,000		1,686,691
4.20%, 10/01/27(a)		1,000		826,300
5.00%, 04/01/35(a)		750		562,875
6.60%, 04/01/36		250		217,409
5.15%, 04/01/38		500		361,611

2

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Automobiles (continued)
General Motors Co. (continued):
6.25%, 10/02/43(a)	$	250	$	197,425
5.20%, 04/01/45(a)		250		197,949
6.75%, 04/01/46		275		219,696
5.40%, 04/01/48		500		364,139
5.95%, 04/01/49		1,000		738,804
				6,757,785
Banks — 2.7%
Australia & New Zealand Banking Group Ltd.:
3.30%, 05/17/21(a)		1,000		1,009,310
2.30%, 06/01/21(a)		1,000		999,468
2.05%, 11/21/22		1,705		1,708,050
Bank of Montreal:
2.35%, 09/11/22		2,000		2,023,759
2.50%, 06/28/24		1,000		977,242
Series D, 3.10%, 04/13/21(a)		1,000		1,010,013
Series E, 3.30%, 02/05/24(a)		4,000		4,127,413
Bank of New York Mellon Corp.:
2.50%, 04/15/21(a)		250		249,853
2.05%, 05/03/21		500		502,320
3.55%, 09/23/21(a)		2,050		2,102,587
2.60%, 02/07/22		1,000		1,008,315
1.95%, 08/23/22(a)		1,000		1,004,099
1.85%, 01/27/23		245		243,446
3.45%, 08/11/23		500		519,881
2.20%, 08/16/23		1,000		1,004,452
2.10%, 10/24/24		250		251,504
2.80%, 05/04/26(a)		70		71,772
3.25%, 05/16/27(a)		750		783,174
3.85%, 04/28/28(a)		2,000		2,234,126
3.30%, 08/23/29		1,000		1,023,833
Series G, 3.00%, 02/24/25		105		107,588
Bank of Nova Scotia:
2.45%, 03/22/21		500		501,574
3.13%, 04/20/21(a)		1,750		1,768,424
2.80%, 07/21/21		750		758,379
2.70%, 03/07/22(a)		1,000		1,015,924
2.45%, 09/19/22		2,000		2,016,339
2.00%, 11/15/22(a)		1,000		1,002,453
2.38%, 01/18/23(a)		475		478,747
3.40%, 02/11/24		1,000		1,050,317
4.50%, 12/16/25		250		256,853
2.70%, 08/03/26		500		504,143
Barclays PLC:
3.20%, 08/10/21(a)		750		742,320
3.68%, 01/10/23		1,500		1,504,130
(3 mo. LIBOR US + 1.36%), 4.34%, 05/16/24(a)(c)		2,000		1,929,264
3.65%, 03/16/25		450		440,096
4.38%, 01/12/26		1,000		1,005,000
4.34%, 01/10/28		750		762,401

Security	Par (000)		Value
Banks (continued)
Barclays PLC (continued):
4.84%, 05/09/28	$	465	$	475,014
(3 mo. LIBOR US + 1.90%), 4.97%, 05/16/29(c)		2,250		2,406,332
(3 mo. LIBOR US + 3.05%), 5.09%, 06/20/30(c)		1,000		1,045,001
4.95%, 01/10/47(a)		1,000		1,092,800
BBVA USA:
2.50%, 08/27/24(a)		1,000		974,789
3.88%, 04/10/25		250		236,635
BNP Paribas SA:
3.25%, 03/03/23(a)		250		257,694
4.25%, 10/15/24		250		257,633
BPCE SA, 4.00%, 04/15/24(a)		250		259,209
Canadian Imperial Bank of Commerce:
(3 mo. LIBOR US + 0.79%), 2.61%, 07/22/23(c)		2,000		2,007,088
3.50%, 09/13/23(a)		2,000		2,122,497
Citibank NA(a):
3.40%, 07/23/21		750		765,371
3.65%, 01/23/24		500		523,569
Citizens Bank NA/Providence RI:
2.55%, 05/13/21		1,000		999,010
2.65%, 05/26/22		250		249,513
Citizens Financial Group, Inc.:
2.85%, 07/27/26(a)		1,500		1,462,689
2.50%, 02/06/30		340		300,436
Comerica, Inc.:
3.70%, 07/31/23		250		256,618
4.00%, 02/01/29(a)		1,000		1,007,176
Cooperatieve Rabobank UA:
2.75%, 01/10/22		2,000		2,012,732
3.88%, 02/08/22(a)		150		154,925
3.95%, 11/09/22		1,000		1,009,407
2.75%, 01/10/23(a)		2,000		2,005,605
4.63%, 12/01/23(a)		500		516,911
3.38%, 05/21/25		500		526,740
4.38%, 08/04/25		500		512,103
3.75%, 07/21/26(a)		500		481,682
5.25%, 05/24/41(a)		1,025		1,352,900
5.25%, 08/04/45		1,250		1,516,974
Credit Suisse AG, New York:
3.00%, 10/29/21		3,250		3,287,650
2.10%, 11/12/21(a)		2,250		2,243,520
3.63%, 09/09/24(a)		750		792,036
Discover Bank:
3.20%, 08/09/21(a)		1,000		989,782
3.35%, 02/06/23		500		493,870
4.20%, 08/08/23(a)		2,000		2,105,697
2.45%, 09/12/24(a)		600		566,302
(5 year USD Swap + 1.73%), 4.68%, 08/09/28(c)		1,000		1,018,210
2.70%, 02/06/30		535		461,399

3

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Banks (continued)
Fifth Third Bancorp:
3.50%, 03/15/22(a)	$	100	$	100,622
4.30%, 01/16/24		250		264,865
8.25%, 03/01/38		425		560,635
Fifth Third Bank:
2.25%, 06/14/21(a)		1,000		1,000,933
3.35%, 07/26/21(a)		1,000		1,013,256
2.88%, 10/01/21		200		201,775
1.80%, 01/30/23		250		246,886
3.95%, 07/28/25(a)		500		525,936
3.85%, 03/15/26(a)		500		518,484
2.25%, 02/01/27		590		557,861
First Republic Bank, 4.63%, 02/13/47(a)		500		540,548
HSBC Holdings PLC:
5.10%, 04/05/21(a)		500		511,207
2.95%, 05/25/21		500		502,611
2.65%, 01/05/22(a)		1,500		1,497,924
4.88%, 01/14/22		150		152,468
(3 mo. LIBOR US + 1.06%), 3.26%, 03/13/23(a)(c)		1,000		999,090
3.60%, 05/25/23(a)		750		757,113
4.25%, 03/14/24(a)		500		513,080
(3 mo. LIBOR US + 0.99%), 3.95%, 05/18/24(c)		380		389,382
(3 mo. LIBOR US + 1.21%), 3.80%, 03/11/25(a)(c)		1,000		1,028,534
4.25%, 08/18/25		500		516,293
(3 mo. LIBOR US + 1.14%), 2.63%, 11/07/25(c)		1,000		970,092
4.30%, 03/08/26(a)		1,000		1,062,048
3.90%, 05/25/26		1,000		1,017,173
(3 mo. LIBOR US + 1.35%), 4.29%, 09/12/26(c)		3,000		2,993,556
4.38%, 11/23/26(a)		2,000		2,105,621
(3 mo. LIBOR US + 1.55%), 4.04%, 03/13/28(a)(c)		3,000		3,050,773
(3 mo. LIBOR US + 1.53%), 4.58%, 06/19/29(c)		3,000		3,178,947
4.95%, 03/31/30		353		385,475
(3 mo. LIBOR US + 1.61%), 3.97%, 05/22/30(a)(c)		1,000		1,024,334
6.50%, 05/02/36(a)		200		236,220
6.50%, 09/15/37(a)		750		901,817
6.80%, 06/01/38		250		304,519
6.10%, 01/14/42(a)		1,000		1,242,925
5.25%, 03/14/44(a)		1,250		1,374,226
Huntington Bancshares, Inc.:
2.63%, 08/06/24		775		801,920
4.00%, 05/15/25		1,000		1,047,567
2.55%, 02/04/30		800		714,214
ING Groep NV:
4.10%, 10/02/23(a)		1,000		1,026,298
3.95%, 03/29/27		250		250,193

Security	Par (000)		Value
Banks (continued)
ING Groep NV (continued):
4.55%, 10/02/28(a)	$	1,000	$	1,061,615
4.05%, 04/09/29(a)		1,000		1,025,946
KeyBank NA:
2.50%, 11/22/21		1,000		1,002,167
3.30%, 02/01/22		1,000		1,013,316
2.30%, 09/14/22		350		348,386
3.38%, 03/07/23		250		255,258
3.90%, 04/13/29		1,000		988,710
KeyCorp:
5.10%, 03/24/21(a)		2,100		2,136,352
2.25%, 04/06/27		250		232,090
2.55%, 10/01/29		500		446,350
Kreditanstalt fuer Wiederaufbau:
2.63%, 04/12/21		2,000		2,042,599
1.50%, 06/15/21		4,500		4,552,290
1.75%, 09/15/21		500		508,884
2.00%, 11/30/21		2,000		2,049,955
3.13%, 12/15/21		4,000		4,173,479
2.50%, 02/15/22		3,000		3,104,855
2.13%, 03/07/22		2,000		2,057,659
2.13%, 06/15/22		2,250		2,326,007
2.38%, 12/29/22(a)		3,000		3,144,697
2.13%, 01/17/23		200		208,574
1.63%, 02/15/23(a)		4,000		4,110,555
2.63%, 02/28/24		1,000		1,077,432
1.38%, 08/05/24		3,000		3,086,680
2.50%, 11/20/24		2,000		2,167,910
2.00%, 05/02/25(a)		2,000		2,127,614
2.88%, 04/03/28		5,000		5,765,813
1.75%, 09/14/29		500		531,611
Lloyds Bank PLC, 2.25%, 08/14/22(a)		1,000		998,200
M&T Bank Corp., 3.55%, 07/26/23(a)		2,000		2,110,046
MUFG Union Bank NA, 2.10%, 12/09/22		1,000		985,183
National Australia Bank Ltd.:
3.70%, 11/04/21(a)		500		508,195
2.50%, 05/22/22(a)		1,000		1,003,121
2.88%, 04/12/23		2,000		2,028,405
2.50%, 07/12/26		1,250		1,252,615
National Bank of Canada, 2.10%, 02/01/23(a)		1,000		980,290
Northern Trust Corp., 3.65%, 08/03/28		250		249,189
Oesterreichische Kontrollbank AG, 2.88%, 03/13/23		2,000		2,123,948
PNC Bank NA:
2.15%, 04/29/21(a)		500		500,166
2.63%, 02/17/22(a)		2,000		2,020,440
2.45%, 07/28/22		750		746,922
2.70%, 11/01/22(a)		1,000		1,010,343
2.95%, 01/30/23(a)		250		253,553
2.95%, 02/23/25		250		254,759
4.05%, 07/26/28(a)		500		557,731

4

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Banks (continued)
PNC Financial Services Group, Inc.:
3.30%, 03/08/22	$	75	$	76,106
3.50%, 01/23/24		2,000		2,011,351
3.90%, 04/29/24		2,000		2,112,443
2.20%, 11/01/24(a)		300		307,510
3.45%, 04/23/29(a)		2,000		1,981,278
Regions Financial Corp.:
2.75%, 08/14/22		500		494,543
3.80%, 08/14/23(a)		2,000		2,024,973
Royal Bank of Canada:
1.95%, 01/17/23(a)		675		668,129
3.70%, 10/05/23		2,000		2,090,647
2.55%, 07/16/24		1,000		1,016,864
2.25%, 11/01/24(a)		1,500		1,507,245
4.65%, 01/27/26(a)		700		731,888
Santander Holdings USA, Inc.:
3.40%, 01/18/23		2,000		1,975,850
3.24%, 10/05/26		2,000		1,772,551
Santander UK Group Holdings PLC:
2.88%, 08/05/21		1,000		987,669
(3 mo. LIBOR US + 1.08%), 3.37%, 01/05/24(a)(c)		3,000		3,025,834
Santander UK PLC, 2.88%, 06/18/24(a)		1,500		1,497,259
Skandinaviska Enskilda Banken AB, 2.63%, 03/15/21		1,000		1,000,470
Svenska Handelsbanken AB:
2.45%, 03/30/21		500		502,094
3.35%, 05/24/21(a)		2,000		2,024,036
Synchrony Bank, 3.00%, 06/15/22		500		496,547
Toronto-Dominion Bank:
2.13%, 04/07/21		500		499,992
3.25%, 06/11/21(a)		500		510,333
1.80%, 07/13/21(a)		2,000		2,009,271
1.90%, 12/01/22		730		728,796
3.50%, 07/19/23		500		515,002
2.65%, 06/12/24		500		507,882
(5 year USD Swap + 2.21%), 3.63%, 09/15/31(a)(c)		500		496,815
Truist Bank:
2.45%, 08/01/22		1,000		1,002,307
(3 mo. LIBOR US + 0.59%), 3.50%, 08/02/22(c)		4,000		4,047,749
2.75%, 05/01/23(a)		500		508,246
(3 mo. LIBOR US + 0.74%), 3.69%, 08/02/24(c)		365		377,560
2.15%, 12/06/24		1,000		990,388
3.80%, 10/30/26		250		262,678
(5 year CMT + 1.15%), 2.64%, 09/17/29(c)		1,000		955,584
Truist Financial Corp.:
2.90%, 03/03/21		500		501,132
2.75%, 04/01/22		1,000		1,006,606
3.75%, 12/06/23(a)		2,000		2,114,987
2.50%, 08/01/24		2,000		1,972,374
2.85%, 10/26/24		500		505,697

Security	Par (000)		Value
Banks (continued)
US Bancorp.:
4.13%, 05/24/21(a)	$	50	$	51,197
2.95%, 07/15/22(a)		2,000		2,021,478
2.40%, 07/30/24(a)		1,000		999,557
3.90%, 04/26/28		2,000		2,151,390
Series V, 2.63%, 01/24/22(a)		2,000		2,027,560
Series V, 2.38%, 07/22/26		500		492,892
US Bank NA:
3.40%, 07/24/23		3,000		3,147,801
2.80%, 01/27/25		500		516,124
Wells Fargo & Co.:
4.60%, 04/01/21(a)		1,000		1,021,709
2.10%, 07/26/21		1,000		996,665
3.50%, 03/08/22(a)		4,000		4,077,742
2.63%, 07/22/22		3,750		3,762,161
3.07%, 01/24/23(a)		2,500		2,526,449
4.13%, 08/15/23		1,750		1,800,511
4.48%, 01/16/24		250		262,330
3.30%, 09/09/24		750		780,893
3.00%, 02/19/25		350		356,804
3.55%, 09/29/25(a)		1,000		1,051,019
(3 mo. LIBOR US + 0.83%), 2.41%, 10/30/25(c)		1,000		985,209
(3 mo. LIBOR US + 0.75%), 2.16%, 02/11/26(c)		1,500		1,469,525
3.00%, 04/22/26(a)		1,750		1,780,530
4.10%, 06/03/26(a)		2,020		2,145,374
3.00%, 10/23/26		1,750		1,788,749
(3 mo. LIBOR US + 1.17%), 3.20%, 06/17/27(c)		1,335		1,375,631
4.30%, 07/22/27(a)		1,500		1,597,788
(3 mo. LIBOR US + 1.31%), 3.58%, 05/22/28(c)		1,500		1,525,401
4.15%, 01/24/29(a)		1,000		1,093,802
(3 mo. LIBOR US + 1.17%), 2.88%, 10/30/30(a)(c)		1,000		990,495
(3 mo. LIBOR US + 1.00%), 2.57%, 02/11/31(a)(c)		1,500		1,434,845
5.38%, 11/02/43		900		1,055,041
5.61%, 01/15/44		656		785,333
4.65%, 11/04/44(a)		3,345		3,669,812
3.90%, 05/01/45(a)		1,150		1,252,874
4.90%, 11/17/45		500		570,014
4.40%, 06/14/46(a)		600		644,373
4.75%, 12/07/46		1,600		1,768,397
(3 mo. LIBOR US + 4.24%), 5.01%, 04/04/51(c)		2,000		2,553,604
5.95%, 12/01/86		250		313,751
Series M, 3.45%, 02/13/23		450		461,741

5

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Banks (continued)
Wells Fargo Bank NA:
(3 mo. LIBOR US + 0.65%), 2.08%, 09/09/22(a)(c)	$	1,000	$	995,308
3.55%, 08/14/23		500		523,486
6.60%, 01/15/38		500		683,089
Westpac Banking Corp.:
2.10%, 05/13/21(a)		500		500,033
2.80%, 01/11/22		1,000		1,009,605
2.75%, 01/11/23(a)		3,000		3,049,814
2.00%, 01/13/23		180		177,947
2.35%, 02/19/25(a)		500		504,086
2.85%, 05/13/26(a)		500		516,464
3.40%, 01/25/28		500		538,474
2.65%, 01/16/30(a)		295		293,917
(5 year CMT + 1.35%), 2.89%, 02/04/30(c)		750		719,460
(5 year USD ICE Swap + 2.24%), 4.32%, 11/23/31(c)		750		760,160
4.42%, 07/24/39(a)		1,000		975,531
Zions Bancorp NA:
3.50%, 08/27/21		250		249,747
3.25%, 10/29/29		1,000		847,455
				300,133,252
Beverages — 0.6%
Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc.:
3.65%, 02/01/26		2,250		2,359,085
4.70%, 02/01/36		2,500		2,618,104
4.90%, 02/01/46(a)		5,370		5,848,810
Anheuser-Busch InBev Finance, Inc.:
3.30%, 02/01/23(a)		3,036		3,125,107
3.65%, 02/01/26(a)		500		521,699
4.63%, 02/01/44		650		680,177
4.90%, 02/01/46		500		517,197
Anheuser-Busch InBev Worldwide, Inc.:
4.15%, 01/23/25(a)		1,000		1,073,509
4.00%, 04/13/28(a)		1,000		1,054,298
4.75%, 01/23/29(a)		500		551,925
4.38%, 04/15/38		1,000		1,006,659
8.20%, 01/15/39(a)		1,150		1,721,152
5.45%, 01/23/39		1,000		1,150,738
4.95%, 01/15/42		500		538,850
3.75%, 07/15/42(a)		300		301,539
4.60%, 04/15/48(a)		1,000		1,057,954
4.44%, 10/06/48		632		644,734
5.55%, 01/23/49(a)		3,000		3,526,185
4.75%, 04/15/58		500		512,817
5.80%, 01/23/59		1,000		1,223,165
Coca-Cola Co.:
3.30%, 09/01/21(a)		2,000		2,047,879
2.20%, 05/25/22(a)		250		253,406
1.75%, 09/06/24(a)		1,000		1,045,025

Security	Par (000)		Value
Beverages (continued)
Coca-Cola Co. (continued):
2.88%, 10/27/25	$	125	$	133,743
2.55%, 06/01/26		750		786,361
2.90%, 05/25/27		250		262,300
2.13%, 09/06/29(a)		1,000		999,205
Constellation Brands, Inc.:
2.65%, 11/07/22(a)		4,000		3,823,691
3.70%, 12/06/26		750		736,577
3.50%, 05/09/27(a)		1,000		937,613
3.15%, 08/01/29		1,000		928,794
Diageo Capital PLC:
2.63%, 04/29/23(a)		250		252,356
3.50%, 09/18/23		2,000		2,038,865
3.88%, 05/18/28		1,000		1,044,764
2.38%, 10/24/29(a)		830		797,550
3.88%, 04/29/43		125		127,903
Diageo Investment Corp.:
2.88%, 05/11/22(a)		100		100,819
4.25%, 05/11/42		250		267,612
Keurig Dr. Pepper, Inc.:
3.55%, 05/25/21		1,750		1,770,528
2.70%, 11/15/22		100		100,887
4.06%, 05/25/23		500		520,114
4.42%, 05/25/25		250		266,408
4.60%, 05/25/28(a)		750		820,390
4.99%, 05/25/38(a)		250		278,099
4.42%, 12/15/46		500		559,268
5.09%, 05/25/48		750		933,803
Molson Coors Brewing Co.:
2.10%, 07/15/21		750		734,631
3.50%, 05/01/22		75		74,976
3.00%, 07/15/26(a)		2,345		2,215,444
5.00%, 05/01/42		750		727,106
4.20%, 07/15/46(a)		500		446,952
PepsiCo, Inc.:
3.00%, 08/25/21(a)		750		770,617
2.75%, 03/05/22(a)		250		259,920
3.10%, 07/17/22		500		520,120
2.75%, 03/01/23		300		313,393
3.60%, 03/01/24(a)		250		270,628
2.75%, 04/30/25(a)		1,000		1,040,241
3.50%, 07/17/25		250		267,376
2.85%, 02/24/26		500		526,904
2.38%, 10/06/26(a)		1,000		1,028,985
3.00%, 10/15/27(a)		500		533,050
2.63%, 07/29/29		1,000		1,044,896
3.60%, 08/13/42		100		103,696
4.60%, 07/17/45		500		599,416
4.45%, 04/14/46(a)		1,000		1,292,315
3.45%, 10/06/46		2,250		2,525,589
3.38%, 07/29/49(a)		600		674,404
2.88%, 10/15/49		500		517,235
				68,355,558

6

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Biotechnology — 0.3%
Amgen, Inc.:
3.88%, 11/15/21	$	829	$	1,001,917
2.70%, 05/01/22		500		512,086
2.25%, 08/19/23(a)		250		251,710
3.63%, 05/22/24(a)		250		262,025
3.13%, 05/01/25		750		795,664
2.60%, 08/19/26(a)		715		734,047
3.20%, 11/02/27		2,000		2,152,043
4.95%, 10/01/41(a)		2,000		2,150,067
5.65%, 06/15/42(a)		750		1,054,705
4.40%, 05/01/45		925		1,085,828
4.56%, 06/15/48		500		611,562
4.66%, 06/15/51		904		1,136,752
Baxalta, Inc.:
4.00%, 06/23/25		1,398		1,467,626
5.25%, 06/23/45		105		131,870
Biogen, Inc.:
4.05%, 09/15/25		595		629,093
5.20%, 09/15/45(a)		1,150		1,484,390
Gilead Sciences, Inc.:
1.95%, 03/01/22		1,000		986,635
2.50%, 09/01/23		500		499,229
3.70%, 04/01/24		1,750		1,835,445
3.50%, 02/01/25		170		179,377
3.65%, 03/01/26		1,325		1,432,813
2.95%, 03/01/27		500		517,004
4.60%, 09/01/35(a)		1,350		1,671,951
5.65%, 12/01/41		50		68,016
4.80%, 04/01/44		500		641,424
4.50%, 02/01/45(a)		1,150		1,397,861
4.75%, 03/01/46(a)		1,000		1,277,020
4.15%, 03/01/47(a)		1,150		1,403,737
				27,371,897
Building Materials — 0.0%
Martin Marietta Materials, Inc., 4.25%, 12/15/47		250		220,711
Building Products — 0.0%
Allegion PLC, 3.50%, 10/01/29		500		484,339
Fortune Brands Home & Security, Inc., 3.25%, 09/15/29		500		477,544
Johnson Controls International PLC:
3.63%, 07/02/24(d)		75		75,250
4.63%, 07/02/44		750		731,962
5.13%, 09/14/45		24		27,720
4.50%, 02/15/47		250		269,409
4.95%, 07/02/64(d)		179		208,311
Masco Corp., 4.38%, 04/01/26		1,000		989,102

Security	Par (000)		Value
Building Products (continued)
Owens Corning:
4.20%, 12/01/24	$	250	$	255,364
4.40%, 01/30/48(a)		1,000		852,827
				4,371,828
Capital Markets — 1.0%
Ameriprise Financial, Inc.(a):
4.00%, 10/15/23		150		158,738
2.88%, 09/15/26		500		488,520
Brookfield Asset Management, Inc., 4.00%, 01/15/25		250		253,102
Brookfield Finance, Inc.:
4.00%, 04/01/24(a)		150		149,287
3.90%, 01/25/28		1,000		1,025,903
4.70%, 09/20/47		500		469,486
Charles Schwab Corp.:
3.00%, 03/10/25		80		82,218
3.85%, 05/21/25		1,000		1,057,736
3.20%, 01/25/28		1,000		1,011,924
3.25%, 05/22/29(a)		200		197,586
CME Group, Inc.:
3.00%, 09/15/22		1,000		1,014,906
3.00%, 03/15/25		250		257,952
3.75%, 06/15/28(a)		1,000		1,114,948
5.30%, 09/15/43		100		134,232
Franklin Resources, Inc., 2.80%, 09/15/22		150		147,366
FS KKR Capital Corp.:
4.63%, 07/15/24		500		375,008
4.13%, 02/01/25		100		81,319
Goldman Sachs Group, Inc.:
2.63%, 04/25/21(a)		500		500,370
5.25%, 07/27/21		2,000		2,064,149
2.35%, 11/15/21		1,500		1,498,170
5.75%, 01/24/22		2,350		2,489,731
3.00%, 04/26/22		3,000		3,022,003
(3 mo. LIBOR US + 0.82%), 2.88%, 10/31/22(c)		2,000		2,009,237
3.63%, 01/22/23		150		153,933
(3 mo. LIBOR US + 0.99%), 2.91%, 07/24/23(c)		2,000		1,992,628
3.63%, 02/20/24(a)		1,000		1,042,706
4.00%, 03/03/24		3,425		3,579,769
3.85%, 07/08/24(a)		500		521,307
3.50%, 01/23/25		750		766,755
3.50%, 04/01/25		1,915		1,957,562
3.75%, 05/22/25		2,250		2,329,085
(3 mo. LIBOR US + 1.20%), 3.27%, 09/29/25(c)		1,000		1,016,281
4.25%, 10/21/25(a)		1,050		1,082,361
3.75%, 02/25/26(a)		380		392,576
5.95%, 01/15/27(a)		250		283,082
3.85%, 01/26/27		2,000		2,062,159

7

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Capital Markets (continued)
Goldman Sachs Group, Inc. (continued):
(3 mo. LIBOR US + 1.51%), 3.69%, 06/05/28(a)(c)	$	500	$	513,381
(3 mo. LIBOR US + 1.16%), 3.81%, 04/23/29(c)		1,000		1,032,816
(3 mo. LIBOR US + 1.30%), 4.22%, 05/01/29(c)		1,000		1,064,240
6.75%, 10/01/37(a)		1,650		2,184,211
(3 mo. LIBOR US + 1.37%), 4.02%, 10/31/38(a)(c)		2,000		2,006,315
(3 mo. LIBOR US + 1.43%), 4.41%, 04/23/39(a)(c)		2,400		2,509,817
4.80%, 07/08/44		1,250		1,399,654
5.15%, 05/22/45		1,500		1,732,061
4.75%, 10/21/45(a)		1,750		2,074,713
Invesco Finance PLC, 4.00%, 01/30/24		250		255,927
Jefferies Group LLC, 5.13%, 01/20/23		650		661,783
Jefferies Group LLC/Jefferies Group Capital Finance, Inc.:
4.85%, 01/15/27		1,000		989,914
4.15%, 01/23/30(a)		1,000		938,110
Landwirtschaftliche Rentenbank, Series 36, 2.00%, 12/06/21		2,000		2,049,740
Lazard Group LLC, 4.38%, 03/11/29		1,000		1,010,810
Legg Mason, Inc., 5.63%, 01/15/44		625		663,857
Morgan Stanley:
2.50%, 04/21/21		500		501,432
5.50%, 07/28/21		1,600		1,661,274
2.63%, 11/17/21(a)		2,750		2,760,279
2.75%, 05/19/22		2,000		2,010,199
4.88%, 11/01/22		500		524,693
3.13%, 01/23/23(a)		3,500		3,584,442
3.75%, 02/25/23(a)		500		518,347
4.10%, 05/22/23		250		255,174
(3 mo. LIBOR US + 0.85%), 3.74%, 04/24/24(c)		4,000		4,096,516
3.70%, 10/23/24(a)		1,500		1,572,908
(Secured Overnight Financing Rate + 1.15%), 2.72%, 07/22/25(c)		605		606,183
4.00%, 07/23/25(a)		505		532,299
5.00%, 11/24/25		1,250		1,368,419
3.88%, 01/27/26(a)		500		534,059
3.13%, 07/27/26(a)		500		512,733
4.35%, 09/08/26		1,500		1,588,906
3.63%, 01/20/27(a)		2,000		2,139,826
3.95%, 04/23/27		250		263,285
(3 mo. LIBOR US + 1.34%), 3.59%, 07/22/28(c)		2,250		2,284,591
(3 mo. LIBOR US + 1.14%), 3.77%, 01/24/29(a)(c)		3,000		3,160,446
(3 mo. LIBOR US + 1.63%), 4.43%, 01/23/30(a)(c)		750		832,613

Security	Par (000)		Value
Capital Markets (continued)
Morgan Stanley (continued):
(Secured Overnight Financing Rate + 3.12%), 3.62%, 04/01/31(c)	$	3,520	$	3,681,712
7.25%, 04/01/32		50		71,468
(3 mo. LIBOR US + 1.46%), 3.97%, 07/22/38(a)(c)		1,000		1,077,786
(3 mo. LIBOR US + 1.43%), 4.46%, 04/22/39(c)		3,000		3,402,008
6.38%, 07/24/42(a)		50		69,724
4.30%, 01/27/45(a)		500		578,719
4.38%, 01/22/47(a)		1,500		1,829,858
Series F, 3.88%, 04/29/24(a)		250		262,645
Nasdaq, Inc., 4.25%, 06/01/24		250		261,434
Nomura Holdings, Inc.:
2.65%, 01/16/25		900		880,600
3.10%, 01/16/30		900		847,927
Owl Rock Capital Corp.:
4.00%, 03/30/25		345		266,018
3.75%, 07/22/25(a)		265		219,821
Raymond James Financial, Inc., 4.95%, 07/15/46		500		575,193
State Street Corp.:
1.95%, 05/19/21(a)		1,000		995,607
(3 mo. LIBOR US + 0.64%), 2.65%, 05/15/23(c)		1,000		985,504
3.10%, 05/15/23		250		256,082
3.30%, 12/16/24		405		418,715
(Secured Overnight Financing Rate + 0.94%), 2.35%, 11/01/25(c)		450		440,345
2.65%, 05/19/26(a)		1,000		1,014,955
2.40%, 01/24/30(a)		300		282,465
(Secured Overnight Financing Rate + 1.49%), 3.03%, 11/01/34(c)		200		193,022
TD Ameritrade Holding Corp.:
2.95%, 04/01/22		250		244,310
3.63%, 04/01/25		1,000		1,044,334
2.75%, 10/01/29		1,000		935,570
TPG Specialty Lending, Inc., 3.88%, 11/01/24		500		441,073
				110,456,963
Chemicals — 0.3%
Albemarle Corp., 4.15%, 12/01/24(a)		250		257,931
Cabot Corp., 4.00%, 07/01/29		1,500		1,646,874
Dow Chemical Co.:
3.50%, 10/01/24		500		494,389
4.80%, 11/30/28(a)		300		323,094
4.25%, 10/01/34		1,600		1,572,690
9.40%, 05/15/39		250		375,962
5.25%, 11/15/41		100		101,101
4.38%, 11/15/42(a)		250		243,663
5.55%, 11/30/48(a)		1,000		1,122,892
4.80%, 05/15/49(a)		1,000		1,032,368

8

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Chemicals (continued)
DuPont de Nemours, Inc.:
4.21%, 11/15/23(a)	$	2,000	$	2,105,921
4.73%, 11/15/28		1,500		1,643,767
5.32%, 11/15/38(a)		750		842,411
5.42%, 11/15/48(a)		1,000		1,100,268
Eastman Chemical Co.:
3.60%, 08/15/22(a)		200		202,186
3.80%, 03/15/25(a)		1,050		1,062,248
4.50%, 12/01/28		1,000		1,053,963
4.80%, 09/01/42		250		284,826
FMC Corp.:
3.20%, 10/01/26		155		153,284
3.45%, 10/01/29		115		108,615
4.50%, 10/01/49		165		159,288
International Flavors & Fragrances, Inc.(a):
4.45%, 09/26/28		500		585,522
5.00%, 09/26/48		500		510,035
LYB International Finance BV(a):
4.00%, 07/15/23		450		459,577
5.25%, 07/15/43		75		76,466
4.88%, 03/15/44		350		377,646
LYB International Finance II BV, 3.50%, 03/02/27(a)		1,000		970,685
LYB International Finance III LLC, 4.20%, 10/15/49(a)		830		813,920
LyondellBasell Industries NV, 4.63%, 02/26/55		600		556,815
Methanex Corp.:
4.25%, 12/01/24		250		192,264
5.25%, 12/15/29		250		187,194
Mosaic Co.:
3.75%, 11/15/21		50		45,247
4.25%, 11/15/23		1,000		947,325
4.05%, 11/15/27(a)		1,000		851,994
5.45%, 11/15/33(a)		250		242,269
Nutrien Ltd.:
3.15%, 10/01/22		1,050		1,050,717
3.50%, 06/01/23		250		255,542
3.63%, 03/15/24		250		251,941
3.38%, 03/15/25		1,395		1,395,087
3.00%, 04/01/25		250		238,846
4.00%, 12/15/26		250		245,391
4.90%, 06/01/43		500		510,776
5.00%, 04/01/49		750		904,183
PPG Industries, Inc.:
2.40%, 08/15/24		1,000		992,321
2.80%, 08/15/29(a)		1,000		960,348
Praxair, Inc.:
2.70%, 02/21/23(a)		1,000		1,012,751
2.65%, 02/05/25(a)		165		169,849
3.20%, 01/30/26		250		264,571
Rohm & Haas Co., 7.85%, 07/15/29		250		313,379

Security	Par (000)		Value
Chemicals (continued)
RPM International, Inc., 5.25%, 06/01/45	$	250	$	288,992
SASOL Financing USA LLC, 5.88%, 03/27/24		500		204,900
Sherwin-Williams Co.:
3.95%, 01/15/26		500		525,838
3.45%, 06/01/27(a)		250		256,216
2.95%, 08/15/29		620		607,989
4.50%, 06/01/47(a)		1,000		1,070,067
3.80%, 08/15/49		880		847,754
Westlake Chemical Corp.:
3.60%, 08/15/26		500		455,452
5.00%, 08/15/46		750		712,986
				36,240,596
Commercial Services & Supplies — 0.1%
American University, Series 2019, 3.67%, 04/01/49		135		145,238
California Institute of Technology, 3.65%, 09/01/19		263		272,115
Ecolab, Inc.:
4.35%, 12/08/21		122		121,000
2.38%, 08/10/22		500		498,912
3.25%, 01/14/23		250		249,561
3.25%, 12/01/27		1,000		939,139
3.70%, 11/01/46		250		224,054
George Washington University:
4.87%, 09/15/45		100		124,574
Series 2014, 4.30%, 09/15/44		250		275,437
Georgetown University:
Series 20A, 2.94%, 04/01/50		104		90,330
Series A, 5.22%, 10/01/18		62		90,797
Series B, 4.32%, 04/01/49		40		46,943
IHS Markit Ltd., 4.25%, 05/01/29		1,000		1,004,952
Leland Stanford Junior University, 3.65%, 05/01/48		250		282,496
Massachusetts Institute of Technology:
4.68%, 07/01/14(a)		300		411,056
Series F, 2.99%, 07/01/50		289		299,443
Northwestern University:
3.87%, 12/01/48		100		114,976
Series 2017, 3.66%, 12/01/57		58		60,193
President and Fellows of Harvard College:
3.15%, 07/15/46		175		175,990
3.30%, 07/15/56		200		214,787
Republic Services, Inc.:
5.25%, 11/15/21		50		52,585
3.55%, 06/01/22		250		254,953
4.75%, 05/15/23		250		263,994
2.50%, 08/15/24		205		206,632
3.20%, 03/15/25		250		257,627
2.90%, 07/01/26		85		86,068
3.95%, 05/15/28		1,750		1,892,027

9

Schedule��of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Commercial Services & Supplies (continued)
Trustees of Boston University, Series CC, 4.06%, 10/01/48	$	35	$	42,348
University of Notre Dame du Lac, Series 2017, 3.39%, 02/15/48		110		109,875
University of Southern California:
3.03%, 10/01/39(a)		200		192,560
2.81%, 10/01/50		134		132,478
Series A, 3.23%, 10/01/20		130		133,890
Waste Management, Inc.:
4.60%, 03/01/21		100		99,473
2.90%, 09/15/22		200		200,891
2.40%, 05/15/23		500		491,706
3.15%, 11/15/27		1,000		1,032,149
3.45%, 06/15/29(a)		1,500		1,537,956
3.90%, 03/01/35(a)		315		346,530
4.15%, 07/15/49		500		574,170
William Marsh Rice University, 3.77%, 05/15/55		300		332,790
				13,882,695
Communications Equipment — 0.1%
Cisco Systems, Inc.:
2.90%, 03/04/21(a)		125		125,686
1.85%, 09/20/21		4,000		4,027,212
2.60%, 02/28/23		500		515,248
2.20%, 09/20/23(a)		1,000		1,051,558
2.95%, 02/28/26		500		532,104
5.90%, 02/15/39(a)		500		718,310
5.50%, 01/15/40(a)		850		1,209,989
Juniper Networks, Inc.:
4.35%, 06/15/25		250		247,515
3.75%, 08/15/29(a)		500		484,489
5.95%, 03/15/41(a)		500		485,765
Motorola Solutions, Inc.:
3.75%, 05/15/22		85		85,024
3.50%, 03/01/23		250		242,063
4.60%, 02/23/28		500		509,551
4.60%, 05/23/29(a)		965		973,300
National Rural Utilities Cooperative Finance Corp., 2.40%, 03/15/30		830		823,893
				12,031,707
Construction & Engineering — 0.0%
ABB Finance USA, Inc.:
2.88%, 05/08/22		100		100,808
3.80%, 04/03/28(a)		1,000		1,062,997
Fluor Corp., 3.50%, 12/15/24		1,250		867,278
				2,031,083
Construction Materials — 0.0%
Vulcan Materials Co.:
3.90%, 04/01/27		1,000		1,009,735
4.50%, 06/15/47		500		503,250

Security	Par (000)		Value
Construction Materials (continued)
WW Grainger, Inc., 4.60%, 06/15/45	$	1,250	$	1,475,290
				2,988,275
Consumer Discretionary — 0.0%
Royal Caribbean Cruises Ltd.:
5.25%, 11/15/22		1,000		724,905
3.70%, 03/15/28		225		141,584
				866,489
Consumer Finance — 0.6%
Ally Financial, Inc.:
4.25%, 04/15/21(a)		2,000		1,965,000
4.13%, 02/13/22(a)		500		481,095
4.63%, 05/19/22		500		482,500
3.88%, 05/21/24(a)		1,500		1,350,000
5.13%, 09/30/24		300		292,347
4.63%, 03/30/25(a)		1,500		1,433,595
American Express Co.:
3.38%, 05/17/21(a)		3,000		3,035,277
2.65%, 12/02/22(a)		1,000		1,010,382
3.40%, 02/27/23(a)		500		512,257
3.70%, 08/03/23		2,000		2,074,175
3.40%, 02/22/24(a)		3,000		3,128,561
2.50%, 07/30/24		655		662,568
3.00%, 10/30/24(a)		1,000		1,022,906
3.63%, 12/05/24		300		308,812
4.05%, 12/03/42(a)		67		79,721
Capital One Bank USA NA:
(Secured Overnight Financing Rate + 0.62%), 2.01%, 01/27/23(c)		1,600		1,563,696
3.38%, 02/15/23(a)		350		344,723
(Secured Overnight Financing Rate + 0.91%), 2.28%, 01/28/26(c)		2,300		2,068,837
Capital One Financial Corp.:
4.75%, 07/15/21(a)		1,000		1,029,052
3.20%, 01/30/23		4,000		3,953,645
3.50%, 06/15/23		110		109,258
3.75%, 04/24/24		250		251,563
3.20%, 02/05/25(a)		250		245,124
4.20%, 10/29/25(a)		340		336,094
3.75%, 07/28/26(a)		230		214,789
3.75%, 03/09/27		500		479,981
3.80%, 01/31/28		1,000		979,611
Capital One NA(a):
2.25%, 09/13/21		1,000		980,552
2.15%, 09/06/22		455		442,779
Caterpillar Financial Services Corp.:
1.70%, 08/09/21(a)		1,000		998,240
2.95%, 02/26/22(a)		1,000		1,018,201
1.90%, 09/06/22		1,000		995,547
2.63%, 03/01/23(a)		2,000		1,996,534
3.45%, 05/15/23		400		418,091
3.65%, 12/07/23(a)		1,000		1,059,961

10

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Consumer Finance (continued)
Caterpillar Financial Services Corp. (continued):
3.30%, 06/09/24	$	250	$	257,761
2.15%, 11/08/24(a)		200		200,889
Discover Financial Services:
3.95%, 11/06/24		350		355,356
3.75%, 03/04/25		75		73,586
Global Payments, Inc.:
4.00%, 06/01/23(a)		1,000		1,035,698
4.80%, 04/01/26(a)		500		497,514
3.20%, 08/15/29		250		238,576
Mastercard, Inc.:
3.38%, 04/01/24		250		263,629
2.00%, 03/03/25(a)		1,200		1,259,374
3.30%, 03/26/27		235		256,038
3.50%, 02/26/28(a)		1,000		1,112,858
2.95%, 06/01/29(a)		1,500		1,596,539
3.35%, 03/26/30		330		365,452
3.65%, 06/01/49(a)		500		560,803
3.85%, 03/26/50		50		61,272
PayPal Holdings, Inc.:
2.40%, 10/01/24		1,170		1,143,499
2.85%, 10/01/29(a)		1,335		1,320,947
Synchrony Financial:
3.75%, 08/15/21(a)		1,500		1,502,912
2.85%, 07/25/22		175		166,156
4.50%, 07/23/25(a)		190		185,807
3.95%, 12/01/27		1,000		888,584
5.15%, 03/19/29(a)		500		474,334
Visa, Inc.:
2.15%, 09/15/22		2,000		2,033,681
2.80%, 12/14/22(a)		750		781,148
3.15%, 12/14/25(a)		1,945		2,118,411
2.75%, 09/15/27		1,150		1,182,201
4.15%, 12/14/35(a)		500		625,525
4.30%, 12/14/45(a)		1,750		2,203,766
3.65%, 09/15/47(a)		195		221,705
				60,309,495
Containers & Packaging — 0.0%
Packaging Corp. of America:
4.50%, 11/01/23(a)		250		270,804
3.00%, 12/15/29		200		196,804
4.05%, 12/15/49		650		643,908
WRKCo, Inc.:
4.65%, 03/15/26		1,170		1,236,209
3.38%, 09/15/27(a)		500		455,985

Security	Par (000)		Value
Containers & Packaging (continued)
WRKCo, Inc. (continued):
4.00%, 03/15/28	$	1,000	$	1,054,596
				3,858,306
Diversified Financial Services — 2.7%
AerCap Ireland Capital DAC/AerCap Global Aviation Trust:
3.95%, 02/01/22		1,250		1,132,081
3.30%, 01/23/23(a)		500		425,438
4.88%, 01/16/24		1,000		859,769
2.88%, 08/14/24		1,000		796,197
3.65%, 07/21/27		1,000		774,341
3.88%, 01/23/28(a)		500		380,917
Air Lease Corp.:
3.88%, 04/01/21		175		160,110
2.25%, 01/15/23(a)		1,095		909,771
4.25%, 09/15/24		250		210,906
2.30%, 02/01/25		375		285,952
3.25%, 03/01/25		2,000		1,567,459
3.63%, 12/01/27(a)		200		166,983
3.25%, 10/01/29		500		400,521
3.00%, 02/01/30		400		288,883
Aircastle Ltd.:
5.00%, 04/01/23		100		97,630
4.13%, 05/01/24		1,000		877,381
4.25%, 06/15/26		500		432,842
American Express Credit Corp.:
2.25%, 05/05/21(a)		1,000		1,002,632
2.70%, 03/03/22(a)		1,000		997,732
3.30%, 05/03/27		500		508,877
Ares Capital Corp., 3.25%, 07/15/25		875		694,451
Banco Santander SA:
3.50%, 04/11/22		1,600		1,582,960
3.13%, 02/23/23(a)		1,000		953,228
2.71%, 06/27/24		1,000		980,846
5.18%, 11/19/25(a)		200		211,638
4.38%, 04/12/28(a)		1,000		1,009,416
3.31%, 06/27/29(a)		600		588,956
Bank of America Corp.:
2.63%, 04/19/21(a)		1,500		1,508,117
(3 mo. LIBOR US + 0.63%), 3.50%, 05/17/22(c)		3,000		3,035,645
2.50%, 10/21/22		1,000		1,002,558
3.30%, 01/11/23		1,000		1,036,040
(3 mo. LIBOR US + 1.02%), 2.88%, 04/24/23(c)		1,000		1,004,075
(3 mo. LIBOR US + 0.93%), 2.82%, 07/21/23(a)(c)		500		502,055
4.10%, 07/24/23(a)		4,000		4,261,553
(3 mo. LIBOR US + 0.79%), 3.00%, 12/20/23(c)		5,144		5,247,889
(3 mo. LIBOR US + 0.78%), 3.55%, 03/05/24(a)(c)		1,000		1,040,109

11

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Diversified Financial Services (continued)
Bank of America Corp. (continued):
4.00%, 04/01/24(a)	$	500	$	529,942
(3 mo. LIBOR US + 0.94%), 3.86%, 07/23/24(c)		1,500		1,569,423
4.20%, 08/26/24(a)		750		797,711
4.00%, 01/22/25		750		789,293
3.88%, 08/01/25		2,250		2,391,199
(3 mo. LIBOR US + 1.09%), 3.09%, 10/01/25(c)		1,000		1,002,617
(3 mo. LIBOR US + 0.87%), 2.46%, 10/22/25(a)(c)		385		388,596
(3 mo. LIBOR US + 0.81%), 3.37%, 01/23/26(c)		2,000		2,095,134
4.45%, 03/03/26		1,340		1,443,229
3.50%, 04/19/26		645		685,086
4.25%, 10/22/26		1,290		1,371,146
3.25%, 10/21/27(a)		1,375		1,408,707
(3 mo. LIBOR US + 1.58%), 3.82%, 01/20/28(c)		2,000		2,072,702
(3 mo. LIBOR US + 1.51%), 3.71%, 04/24/28(a)(c)		1,000		1,022,472
(3 mo. LIBOR US + 1.37%), 3.59%, 07/21/28(c)		500		511,290
(3 mo. LIBOR US + 1.04%), 3.42%, 12/20/28(a)(c)		2,544		2,624,233
(3 mo. LIBOR US + 1.07%), 3.97%, 03/05/29(c)		1,000		1,044,336
(3 mo. LIBOR US + 1.31%), 4.27%, 07/23/29(c)		1,450		1,567,541
(3 mo. LIBOR US + 1.21%), 3.97%, 02/07/30(c)		2,650		2,856,516
(3 mo. LIBOR US + 1.18%), 3.19%, 07/23/30(c)		965		984,340
(3 mo. LIBOR US + 1.19%), 2.88%, 10/22/30(c)		1,000		999,644
(3 mo. LIBOR US + 0.99%), 2.50%, 02/13/31(c)		500		483,464
6.11%, 01/29/37(a)		350		449,649
(3 mo. LIBOR US + 1.81%), 4.24%, 04/24/38(c)		1,500		1,724,981
7.75%, 05/14/38		200		295,452
(3 mo. LIBOR US + 1.32%), 4.08%, 04/23/40(a)(c)		1,000		1,080,122
5.88%, 02/07/42(a)		1,100		1,548,406
5.00%, 01/21/44(a)		1,250		1,588,162
(3 mo. LIBOR US + 1.99%), 4.44%, 01/20/48(c)		1,150		1,288,848
(3 mo. LIBOR US + 1.52%), 4.33%, 03/15/50(a)(c)		2,000		2,358,337
(3 mo. LIBOR US + 3.15%), 4.08%, 03/20/51(c)		500		572,343
Series L, 3.95%, 04/21/25(a)		2,155		2,265,526
Series L, 4.18%, 11/25/27(a)		1,000		1,033,663

Security	Par (000)		Value
Diversified Financial Services (continued)
Carrier Global Corp.(b):
1.92%, 02/15/23	$	350	$	344,570
2.24%, 02/15/25		390		378,860
2.49%, 02/15/27		983		937,672
2.72%, 02/15/30		500		460,717
3.58%, 04/05/50		500		428,283
Citigroup, Inc.:
2.70%, 03/30/21		4,750		4,769,748
2.35%, 08/02/21		4,000		4,006,683
2.90%, 12/08/21		750		755,770
2.75%, 04/25/22		1,500		1,508,130
4.05%, 07/30/22		250		253,759
2.70%, 10/27/22(a)		500		497,167
(Secured Overnight Financing Rate + 0.87%), 2.31%, 11/04/22(c)		700		697,335
(3 mo. LIBOR US + 0.72%), 3.14%, 01/24/23(c)		500		505,891
3.50%, 05/15/23(a)		500		507,762
(3 mo. LIBOR US + 0.95%), 2.88%, 07/24/23(a)(c)		1,500		1,511,533
3.88%, 03/26/25		500		506,853
(3 mo. LIBOR US + 0.90%), 3.35%, 04/24/25(a)(c)		4,000		4,098,794
3.30%, 04/27/25		155		156,753
4.40%, 06/10/25		500		522,792
3.70%, 01/12/26		1,000		1,032,600
4.60%, 03/09/26(a)		250		265,178
3.40%, 05/01/26		500		520,939
3.20%, 10/21/26(a)		500		517,751
4.30%, 11/20/26(a)		150		156,919
4.45%, 09/29/27		3,000		3,132,074
(3 mo. LIBOR US + 1.56%), 3.89%, 01/10/28(c)		1,000		1,028,526
(3 mo. LIBOR US + 1.39%), 3.67%, 07/24/28(c)		1,000		1,035,288
4.13%, 07/25/28(a)		750		767,439
(3 mo. LIBOR US + 1.15%), 3.52%, 10/27/28(c)		2,000		2,000,794
(Secured Overnight Financing Rate + 1.42%), 2.98%, 11/05/30(a)(c)		1,000		976,604
6.63%, 06/15/32		100		120,378
6.13%, 08/25/36		184		218,155
8.13%, 07/15/39		575		901,915
5.88%, 01/30/42(a)		2,500		3,172,379
6.68%, 09/13/43		250		327,656
5.30%, 05/06/44(a)		500		587,103
4.65%, 07/30/45(a)		250		285,980
4.75%, 05/18/46(a)		1,500		1,677,921
(3 mo. LIBOR US + 1.84%), 4.28%, 04/24/48(c)		1,000		1,105,459
4.65%, 07/23/48		1,500		1,803,219

12

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Diversified Financial Services (continued)
Credit Suisse Group Funding Guernsey Ltd.:
3.45%, 04/16/21	$	2,000	$	2,012,645
3.80%, 09/15/22(a)		500		506,625
3.80%, 06/09/23(a)		1,000		1,010,898
3.75%, 03/26/25(a)		500		493,595
4.55%, 04/17/26		250		261,902
4.88%, 05/15/45(a)		1,500		1,824,882
Deutsche Bank AG, 4.10%, 01/13/26		350		325,396
Deutsche Bank AG, London, 3.70%, 05/30/24		215		194,029
Deutsche Bank AG, New York:
4.25%, 10/14/21(a)		2,000		1,911,873
3.95%, 02/27/23(a)		2,000		1,986,667
(Secured Overnight Financing Rate + 2.58%), 3.96%, 11/26/25(c)		800		737,441
E*TRADE Financial Corp., 4.50%, 06/20/28(a)		1,000		1,023,558
Ford Motor Credit Co. LLC, 3.10%, 05/04/23		500		457,500
GE Capital International Funding Co.:
3.37%, 11/15/25		1,427		1,419,886
4.42%, 11/15/35(a)		5,685		6,066,353
General Motors Financial Co., Inc.:
4.20%, 03/01/21(a)		750		721,798
3.45%, 04/10/22		400		376,333
3.15%, 06/30/22		1,000		900,744
3.55%, 07/08/22(a)		1,000		929,923
3.25%, 01/05/23		3,000		2,721,706
5.10%, 01/17/24		1,000		918,309
3.95%, 04/13/24		1,000		906,195
4.00%, 01/15/25		250		222,149
2.90%, 02/26/25(a)		660		570,521
4.30%, 07/13/25		1,000		885,601
5.25%, 03/01/26(a)		405		357,177
5.65%, 01/17/29		250		216,858
Genpact Luxembourg Sarl, 3.38%, 12/01/24		1,000		1,004,107
Intercontinental Exchange, Inc.:
2.35%, 09/15/22(a)		1,000		1,000,108
3.75%, 12/01/25(a)		1,115		1,177,429
3.75%, 09/21/28		1,135		1,206,910
4.25%, 09/21/48(a)		500		580,000
Jefferies Financial Group, Inc., 5.50%, 10/18/23(a)		150		151,792
John Deere Capital Corp.:
2.80%, 03/04/21		250		251,980
2.30%, 06/07/21(a)		1,000		1,004,396
3.90%, 07/12/21		50		50,966
2.65%, 01/06/22		140		141,364
2.75%, 03/15/22		500		494,819
2.95%, 04/01/22		500		510,716
1.95%, 06/13/22		300		298,034

Security	Par (000)		Value
Diversified Financial Services (continued)
John Deere Capital Corp. (continued):
2.15%, 09/08/22	$	1,000	$	981,093
2.80%, 03/06/23		500		512,539
3.45%, 06/07/23		2,000		2,092,995
3.45%, 01/10/24(a)		1,000		1,045,430
2.05%, 01/09/25		1,000		977,749
2.25%, 09/14/26		500		488,318
3.05%, 01/06/28		300		310,352
2.80%, 07/18/29(a)		630		612,228
2.45%, 01/09/30(a)		300		302,848
JPMorgan Chase & Co.:
2.40%, 06/07/21(a)		1,000		1,002,061
2.30%, 08/15/21		2,000		1,997,932
4.35%, 08/15/21		500		512,803
4.50%, 01/24/22		2,800		2,924,657
(3 mo. LIBOR US + 0.61%), 3.51%, 06/18/22(a)(c)		2,000		2,032,362
3.25%, 09/23/22		200		206,262
2.97%, 01/15/23(a)		2,000		2,032,399
3.20%, 01/25/23(a)		3,150		3,240,618
(3 mo. LIBOR US + 0.70%), 3.21%, 04/01/23(a)(c)		2,000		2,034,430
(3 mo. LIBOR US + 0.94%), 2.78%, 04/25/23(c)		1,500		1,519,338
3.38%, 05/01/23(a)		250		261,312
2.70%, 05/18/23		500		513,152
(3 mo. LIBOR US + 0.73%), 3.56%, 04/23/24(c)		1,500		1,569,717
3.63%, 05/13/24(a)		1,000		1,042,740
(3 mo. LIBOR US + 0.89%), 3.80%, 07/23/24(c)		2,500		2,616,726
3.88%, 09/10/24		1,300		1,370,790
3.13%, 01/23/25		250		259,335
(3 mo. LIBOR US + 1.16%), 3.22%, 03/01/25(a)(c)		2,000		2,076,450
3.90%, 07/15/25		250		266,086
(Secured Overnight Financing Rate + 1.16%), 2.30%, 10/15/25(c)		500		497,504
3.30%, 04/01/26(a)		500		519,192
3.20%, 06/15/26(a)		1,000		1,038,615
7.63%, 10/15/26		500		630,058
4.13%, 12/15/26(a)		250		268,854
4.25%, 10/01/27(a)		500		544,312
3.63%, 12/01/27		1,000		1,053,031
(3 mo. LIBOR US + 1.34%), 3.78%, 02/01/28(a)(c)		2,000		2,116,649
(3 mo. LIBOR US + 1.38%), 3.54%, 05/01/28(a)(c)		750		771,793
(3 mo. LIBOR US + 0.95%), 3.51%, 01/23/29(a)(c)		1,000		1,029,524
(3 mo. LIBOR US + 1.12%), 4.01%, 04/23/29(c)		4,000		4,294,520

13

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Diversified Financial Services (continued)
JPMorgan Chase & Co. (continued):
(3 mo. LIBOR US + 1.26%), 4.20%, 07/23/29(c)	$	175	$	192,054
(3 mo. LIBOR US + 1.33%), 4.45%, 12/05/29(a)(c)		500		562,670
(3 mo. LIBOR US + 1.16%), 3.70%, 05/06/30(c)		1,000		1,072,434
(Secured Overnight Financing Rate + 1.51%), 2.74%, 10/15/30(c)		1,000		1,013,137
(Secured Overnight Financing Rate + 3.79%), 4.49%, 03/24/31(c)		1,000		1,155,998
6.40%, 05/15/38(a)		1,100		1,574,222
(3 mo. LIBOR US + 1.36%), 3.88%, 07/24/38(a)(c)		1,000		1,116,277
5.50%, 10/15/40(a)		125		163,263
5.60%, 07/15/41(a)		550		730,987
5.40%, 01/06/42(a)		400		529,591
5.63%, 08/16/43(a)		500		647,488
4.85%, 02/01/44		100		119,642
4.95%, 06/01/45(a)		1,250		1,565,556
(3 mo. LIBOR US + 1.58%), 4.26%, 02/22/48(a)(c)		1,000		1,156,702
(3 mo. LIBOR US + 1.46%), 4.03%, 07/24/48(c)		1,500		1,679,185
(3 mo. LIBOR US + 1.38%), 3.96%, 11/15/48(c)		1,500		1,735,561
(3 mo. LIBOR US + 1.22%), 3.90%, 01/23/49(c)		1,750		2,004,988
Kimberly-Clark Corp., 2.88%, 02/07/50		300		294,195
Lloyds Banking Group PLC:
3.10%, 07/06/21		500		498,450
3.00%, 01/11/22(a)		2,000		1,982,446
(3 mo. LIBOR US + 1.25%), 2.86%, 03/17/23(c)		1,000		986,066
4.05%, 08/16/23		500		515,273
(3 mo. LIBOR US + 0.81%), 2.91%, 11/07/23(a)(c)		1,000		992,725
3.90%, 03/12/24		500		505,986
4.45%, 05/08/25		500		515,739
4.58%, 12/10/25		250		252,865
(1 year CMT + 1.00%), 2.44%, 02/05/26(a)(c)		340		321,053
4.65%, 03/24/26		250		255,225
4.55%, 08/16/28(a)		2,000		2,082,153
(3 mo. LIBOR US + 1.21%), 3.57%, 11/07/28(c)		500		496,111
5.30%, 12/01/45(a)		850		937,216
4.34%, 01/09/48(a)		800		801,068
Mitsubishi UFJ Financial Group, Inc.:
2.95%, 03/01/21		1,162		1,161,135
3.00%, 02/22/22(a)		1,500		1,528,402
2.62%, 07/18/22		2,000		1,994,612
3.46%, 03/02/23(a)		3,000		3,077,391

Security	Par (000)		Value
Diversified Financial Services (continued)
Mitsubishi UFJ Financial Group, Inc. (continued):
3.76%, 07/26/23(a)	$	1,500	$	1,550,349
2.80%, 07/18/24(a)		1,000		987,007
3.85%, 03/01/26		500		509,942
2.76%, 09/13/26(a)		250		251,450
3.29%, 07/25/27(a)		1,000		1,036,484
3.96%, 03/02/28		1,000		1,039,035
3.74%, 03/07/29		2,000		2,139,531
4.29%, 07/26/38		250		264,758
3.75%, 07/18/39		1,010		945,894
Mizuho Financial Group, Inc.:
2.95%, 02/28/22		250		250,865
3.55%, 03/05/23		2,000		2,034,086
(3 mo. LIBOR US + 1.00%), 3.92%, 09/11/24(c)		2,000		2,076,762
(3 mo. LIBOR US + 1.10%), 2.56%, 09/13/25(c)		905		893,722
3.17%, 09/11/27		1,000		1,001,479
(3 mo. LIBOR US + 1.13%), 3.15%, 07/16/30(c)		1,000		953,875
(3 mo. LIBOR US + 1.31%), 2.87%, 09/13/30(c)		500		447,823
Moody’s Corp.:
4.50%, 09/01/22		550		563,790
4.88%, 02/15/24(a)		500		540,418
3.25%, 01/15/28		750		759,408
4.25%, 02/01/29(a)		1,000	��	1,083,059
MUFG Americas Holdings Corp., 3.00%, 02/10/25		200		183,156
National Rural Utilities Cooperative Finance Corp.:
2.90%, 03/15/21(a)		400		400,671
2.30%, 09/15/22		1,000		992,773
3.40%, 11/15/23(a)		350		368,754
2.85%, 01/27/25		250		251,778
3.40%, 02/07/28		2,000		2,051,776
4.30%, 03/15/49		500		556,804
Royal Bank of Scotland Group PLC:
6.13%, 12/15/22		1,000		1,032,947
3.88%, 09/12/23		1,000		1,026,342
6.00%, 12/19/23		2,000		2,096,538
(3 mo. LIBOR US + 1.55%), 4.52%, 06/25/24(c)		2,000		2,013,881
4.80%, 04/05/26		500		496,876
(3 mo. LIBOR US + 1.75%), 4.89%, 05/18/29(a)(c)		750		793,760
(5 year CMT + 2.10%), 3.75%, 11/01/29(a)(c)		290		268,172
(3 mo. LIBOR US + 1.91%), 5.08%, 01/27/30(c)		1,000		996,156
(3 mo. LIBOR US + 1.87%), 4.45%, 05/08/30(a)(c)		1,000		1,042,043

14

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Diversified Financial Services (continued)
S&P Global, Inc.:
4.40%, 02/15/26	$	750	$	832,117
2.50%, 12/01/29		320		312,812
4.50%, 05/15/48		250		297,466
3.25%, 12/01/49		225		222,400
Sumitomo Mitsui Financial Group, Inc.:
2.44%, 10/19/21(a)		1,000		999,437
2.85%, 01/11/22		1,000		1,005,494
3.10%, 01/17/23(a)		4,000		4,005,152
3.75%, 07/19/23(a)		500		520,572
2.45%, 09/27/24		1,000		991,735
3.78%, 03/09/26		500		529,107
2.63%, 07/14/26		1,000		974,977
3.01%, 10/19/26(a)		250		252,394
3.36%, 07/12/27		1,000		960,482
3.35%, 10/18/27		500		475,122
3.54%, 01/17/28		2,000		1,979,949
3.04%, 07/16/29		920		913,493
3.20%, 09/17/29		500		509,037
2.72%, 09/27/29(a)		1,000		970,242
Trustees of the University of Pennsylvania, 3.61%, 02/15/19		160		161,606
				296,697,000
Diversified Telecommunication Services — 0.8%
AT&T, Inc.:
3.20%, 03/01/22		2,000		2,027,853
3.80%, 03/15/22(a)		250		252,619
3.00%, 06/30/22		2,000		2,017,402
2.63%, 12/01/22		2,000		1,975,720
3.60%, 02/17/23(a)		500		513,697
3.80%, 03/01/24		1,000		1,045,230
4.45%, 04/01/24		500		532,385
3.95%, 01/15/25(a)		500		527,994
3.40%, 05/15/25(a)		2,500		2,600,499
3.60%, 07/15/25		250		264,874
3.88%, 01/15/26(a)		1,000		1,030,481
4.13%, 02/17/26(a)		1,250		1,324,333
2.95%, 07/15/26		500		499,132
3.80%, 02/15/27		500		521,756
4.25%, 03/01/27(a)		1,000		1,062,169
4.10%, 02/15/28(a)		544		570,803
4.35%, 03/01/29(a)		500		539,447
4.30%, 02/15/30		1,000		1,073,881
4.50%, 05/15/35		810		863,275
5.25%, 03/01/37		1,000		1,166,691
4.90%, 08/15/37(a)		750		835,601
4.85%, 03/01/39		2,000		2,242,971
6.00%, 08/15/40(a)		250		305,607
5.35%, 09/01/40		463		534,222
6.25%, 03/29/41		150		184,912
5.55%, 08/15/41		200		227,486
5.38%, 10/15/41(a)		1,500		1,701,114

Security	Par (000)		Value
Diversified Telecommunication Services (continued)
AT&T, Inc. (continued):
5.15%, 03/15/42(a)	$	150	$	172,440
4.90%, 06/15/42		350		385,672
4.30%, 12/15/42(a)		651		686,851
5.35%, 12/15/43		250		287,920
4.65%, 06/01/44		250		262,144
4.80%, 06/15/44		750		817,839
4.35%, 06/15/45		2,259		2,385,602
4.85%, 07/15/45		500		531,854
4.75%, 05/15/46		1,000		1,105,920
5.15%, 11/15/46		1,952		2,292,672
5.65%, 02/15/47(a)		1,750		2,257,297
5.45%, 03/01/47(a)		750		899,443
4.50%, 03/09/48(a)		2,750		2,978,043
4.55%, 03/09/49(a)		2,000		2,149,544
5.15%, 02/15/50(a)		500		596,696
5.70%, 03/01/57		500		627,503
British Telecommunications PLC:
5.13%, 12/04/28(a)		1,000		1,114,954
9.63%, 12/15/30		900		1,406,370
Deutsche Telekom International Finance BV, 8.75%, 06/15/30(a)		1,650		2,227,441
Orange SA:
9.00%, 03/01/31		250		379,595
5.38%, 01/13/42		1,825		2,333,565
Telefonica Emisiones SA:
4.57%, 04/27/23(a)		1,200		1,231,238
4.10%, 03/08/27		500		514,834
7.05%, 06/20/36		75		89,366
4.67%, 03/06/38		1,000		1,042,026
5.21%, 03/08/47(a)		1,750		1,961,325
4.90%, 03/06/48(a)		500		553,900
5.52%, 03/01/49(a)		500		585,991
Telefonica Europe BV, 8.25%, 09/15/30		300		418,298
Verizon Communications, Inc.:
4.15%, 03/15/24(a)		2,000		2,169,954
3.50%, 11/01/24		500		531,946
3.38%, 02/15/25		2,992		3,196,060
2.63%, 08/15/26(a)		900		929,203
4.13%, 03/16/27(a)		750		833,881
4.33%, 09/21/28(a)		2,164		2,461,161
3.88%, 02/08/29(a)		2,000		2,211,830
4.02%, 12/03/29(a)		1,500		1,684,657
4.50%, 08/10/33(a)		1,750		2,062,750
4.40%, 11/01/34		1,500		1,750,713
4.27%, 01/15/36		1,250		1,451,787
5.25%, 03/16/37		1,250		1,587,650
4.81%, 03/15/39		596		733,683
3.85%, 11/01/42		250		279,575
6.55%, 09/15/43		750		938,335
4.86%, 08/21/46		1,500		1,957,571
5.50%, 03/16/47(a)		250		342,275
4.52%, 09/15/48		4,000		5,120,918

15

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Diversified Telecommunication Services (continued)
Verizon Communications, Inc. (continued):
5.01%, 04/15/49	$	1,981	$	2,662,151
				91,644,597
Education — 0.0%
George Washington University, Series 2018, 4.13%, 09/15/48		164		163,103
Electric Utilities — 1.6%
AEP Texas, Inc.:
2.40%, 10/01/22		1,000		1,006,911
3.95%, 06/01/28		500		522,491
Series H, 3.45%, 01/15/50		250		217,605
AEP Transmission Co. LLC:
3.10%, 12/01/26(a)		500		519,597
3.80%, 06/15/49		1,000		1,076,011
3.15%, 09/15/49		135		135,539
Alabama Power Co.:
3.75%, 03/01/45		250		257,149
4.30%, 01/02/46		250		279,613
3.45%, 10/01/49		185		187,973
Series B, 3.70%, 12/01/47		2,500		2,603,426
Ameren Corp., 2.50%, 09/15/24		635		617,321
Ameren Illinois Co.:
2.70%, 09/01/22		100		97,733
4.30%, 07/01/44		250		276,138
3.25%, 03/15/50(a)		150		150,070
American Electric Power Co., Inc., Series F, 2.95%, 12/15/22(a)		500		485,168
Appalachian Power Co., 4.40%, 05/15/44		250		264,231
Arizona Public Service Co.:
3.15%, 05/15/25		250		257,838
2.60%, 08/15/29(a)		500		480,366
5.05%, 09/01/41		250		285,733
4.20%, 08/15/48		250		255,411
3.50%, 12/01/49		1,100		1,117,334
Baltimore Gas & Electric Co.:
2.40%, 08/15/26		1,000		961,686
3.50%, 08/15/46		700		698,737
3.20%, 09/15/49(a)		225		204,418
Berkshire Hathaway Energy Co.:
3.75%, 11/15/23		500		521,790
3.50%, 02/01/25		110		116,023
3.25%, 04/15/28		500		516,730
6.13%, 04/01/36(a)		250		329,437
5.15%, 11/15/43(a)		250		297,952
4.50%, 02/01/45		400		449,232
4.45%, 01/15/49(a)		2,000		2,381,624
Black Hills Corp.:
3.95%, 01/15/26		200		210,105
3.05%, 10/15/29(a)		415		393,665
4.35%, 05/01/33		400		488,833

Security	Par (000)		Value
Electric Utilities (continued)
Black Hills Corp. (continued):
3.88%, 10/15/49	$	350	$	298,542
CenterPoint Energy Houston Electric LLC:
1.85%, 06/01/21		500		491,765
3.55%, 08/01/42		100		103,470
3.95%, 03/01/48(a)		250		279,059
Cleco Corporate Holdings LLC:
3.74%, 05/01/26		500		489,864
3.38%, 09/15/29(b)		500		496,125
CMS Energy Corp.:
3.45%, 08/15/27		1,000		1,012,936
4.70%, 03/31/43		200		216,360
Commonwealth Edison Co.:
3.10%, 11/01/24(a)		250		255,393
2.55%, 06/15/26		250		247,054
3.70%, 08/15/28		500		534,541
5.90%, 03/15/36		50		59,110
3.70%, 03/01/45(a)		250		261,093
3.65%, 06/15/46		750		793,166
4.00%, 03/01/48(a)		2,000		2,244,341
Series 122, 2.95%, 08/15/27(a)		1,000		980,775
Series 127, 3.20%, 11/15/49		610		597,489
Connecticut Light & Power Co.:
2.50%, 01/15/23		150		154,968
Series A, 3.20%, 03/15/27		500		523,865
Consolidated Edison Co. of New York, Inc.:
3.30%, 12/01/24		250		246,096
3.80%, 05/15/28(a)		500		519,188
3.95%, 03/01/43		150		140,010
4.45%, 03/15/44		250		276,420
4.50%, 12/01/45		250		276,652
4.50%, 05/15/58		1,000		1,108,640
3.70%, 11/15/59		200		189,570
Series A, 4.20%, 03/15/42		400		420,624
Series A, 4.13%, 05/15/49		500		541,234
Series C, 4.30%, 12/01/56		500		528,580
Series C, 4.00%, 11/15/57		750		774,293
Series D, 4.00%, 12/01/28(a)		500		535,203
Series E, 4.65%, 12/01/48		500		567,388
Consolidated Edison, Inc., 2.00%, 05/15/21		750		741,010
Consumers Energy Co.(a):
4.35%, 04/15/49		1,000		1,198,934
3.10%, 08/15/50		215		209,338
Dominion Energy South Carolina, Inc.:
5.45%, 02/01/41		1,000		1,145,428
4.60%, 06/15/43		250		302,349
Dominion Energy, Inc.:
3.07%, 08/15/24(a)(d)		500		498,454
3.90%, 10/01/25(a)		2,000		2,064,178
7.00%, 06/15/38		250		314,695

16

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Electric Utilities (continued)
Dominion Energy, Inc. (continued):
Series A, 4.60%, 03/15/49	$	500	$	515,855
Series C, 4.90%, 08/01/41		50		52,107
DTE Electric Co.:
3.65%, 03/15/24		1,000		1,027,021
3.70%, 03/15/45		645		680,995
3.70%, 06/01/46		250		263,979
3.75%, 08/15/47		200		210,145
Series A, 4.00%, 04/01/43		150		162,696
Series A, 4.05%, 05/15/48		250		280,837
DTE Energy Co.:
2.25%, 11/01/22		200		197,640
2.95%, 03/01/30(a)		1,000		957,883
Series C, 2.53%, 10/01/24		1,000		971,278
Series C, 3.40%, 06/15/29		725		725,077
Duke Energy Carolinas LLC:
3.05%, 03/15/23		200		204,789
2.45%, 08/15/29		500		489,906
2.45%, 02/01/30		400		397,204
6.10%, 06/01/37(a)		500		667,714
6.05%, 04/15/38		100		140,303
5.30%, 02/15/40		250		315,990
4.25%, 12/15/41		2,000		2,265,773
3.70%, 12/01/47		500		544,594
3.95%, 03/15/48(a)		1,000		1,125,623
3.20%, 08/15/49		930		929,392
Duke Energy Corp.:
1.80%, 09/01/21		3,000		2,974,267
2.40%, 08/15/22		1,000		998,434
3.95%, 10/15/23		250		260,490
3.75%, 04/15/24		500		514,971
2.65%, 09/01/26		500		496,085
3.15%, 08/15/27		500		492,057
4.80%, 12/15/45		250		272,645
3.75%, 09/01/46		1,500		1,435,998
3.95%, 08/15/47(a)		500		481,658
4.20%, 06/15/49		500		503,029
Duke Energy Florida LLC:
2.50%, 12/01/29(a)		345		338,554
3.40%, 10/01/46		250		256,295
Duke Energy Indiana LLC:
3.75%, 05/15/46		500		539,778
Series UUU, 4.20%, 03/15/42		400		435,898
Series WWW, 4.90%, 07/15/43		250		303,122
Series YYY, 3.25%, 10/01/49		500		498,102
Duke Energy Ohio, Inc., 3.70%, 06/15/46		250		267,748
Duke Energy Progress LLC:
3.38%, 09/01/23(a)		250		260,232
3.70%, 09/01/28		365		390,118
4.10%, 05/15/42		150		172,783
4.10%, 03/15/43		250		276,300
4.38%, 03/30/44		100		114,743

Security	Par (000)		Value
Electric Utilities (continued)
Duke Energy Progress LLC (continued):
4.20%, 08/15/45	$	250	$	284,483
3.70%, 10/15/46		500		535,079
Edison International:
3.13%, 11/15/22		95		93,239
3.55%, 11/15/24		175		173,801
5.75%, 06/15/27		50		51,932
Emera US Finance LP:
2.70%, 06/15/21		1,000		1,011,562
3.55%, 06/15/26		75		71,517
4.75%, 06/15/46(a)		350		322,259
Entergy Arkansas LLC, 3.50%, 04/01/26		65		68,840
Entergy Corp., 4.00%, 07/15/22		200		205,256
Entergy Louisiana LLC:
4.05%, 09/01/23(a)		250		255,487
5.40%, 11/01/24		3,000		3,397,678
4.00%, 03/15/33		250		276,970
4.20%, 09/01/48		250		280,462
4.20%, 04/01/50(a)		1,000		1,145,533
Entergy Mississippi LLC, 2.85%, 06/01/28		500		502,095
Entergy Texas, Inc., 3.55%, 09/30/49		200		202,534
Evergy Kansas Central, Inc.:
2.55%, 07/01/26		350		363,115
4.25%, 12/01/45		1,000		1,113,433
3.25%, 09/01/49		500		507,918
Evergy Metro, Inc., 3.65%, 08/15/25		150		156,009
Evergy, Inc.:
2.45%, 09/15/24		500		490,498
2.90%, 09/15/29		500		473,122
Eversource Energy:
2.50%, 03/15/21		500		495,756
Series H, 3.15%, 01/15/25		125		123,879
Series M, 3.30%, 01/15/28		2,000		2,019,980
Exelon Corp.:
3.50%, 06/01/22(a)		500		484,471
3.95%, 06/15/25		250		251,099
3.40%, 04/15/26(a)		750		727,010
5.10%, 06/15/45		250		269,438
4.45%, 04/15/46		250		250,249
Exelon Generation Co. LLC:
4.25%, 06/15/22(a)		500		500,183
6.25%, 10/01/39		150		140,956
5.75%, 10/01/41		500		451,969
5.60%, 06/15/42(a)		50		48,100
FirstEnergy Corp.:
7.38%, 11/15/31		500		651,375
Series B, 3.90%, 07/15/27		2,000		2,031,656
Series C, 4.85%, 07/15/47		500		546,547
Florida Power & Light Co.:
2.75%, 06/01/23		250		258,286
2.85%, 04/01/25		120		125,112
3.13%, 12/01/25		500		510,917

17

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Electric Utilities (continued)
Florida Power & Light Co. (continued):
5.95%, 02/01/38	$	50	$	65,490
5.25%, 02/01/41		500		605,736
4.13%, 02/01/42(a)		500		541,028
4.05%, 10/01/44		750		874,529
3.70%, 12/01/47		1,000		1,101,929
3.95%, 03/01/48(a)		500		595,897
4.13%, 06/01/48		500		565,647
3.15%, 10/01/49(a)		885		916,672
Georgia Power Co.:
4.30%, 03/15/42		700		760,031
Series A, 2.20%, 09/15/24(a)		1,000		938,039
Series B, 2.65%, 09/15/29(a)		1,000		964,945
Indiana Michigan Power Co.:
6.05%, 03/15/37		175		204,183
4.25%, 08/15/48		250		282,515
Series K, 4.55%, 03/15/46		150		167,527
Interstate Power & Light Co.:
3.25%, 12/01/24		250		252,803
3.70%, 09/15/46		500		469,276
3.50%, 09/30/49		105		95,077
ITC Holdings Corp., 3.25%, 06/30/26		1,000		1,016,137
Louisville Gas & Electric Co., 4.65%, 11/15/43		250		291,431
MidAmerican Energy Co.:
3.65%, 04/15/29(a)		500		536,420
4.80%, 09/15/43		250		271,535
4.40%, 10/15/44		1,000		1,138,756
4.25%, 07/15/49(a)		1,500		1,742,829
3.15%, 04/15/50		250		254,114
Mississippi Power Co., Series A, 4.25%, 03/15/42		500		477,185
Nevada Power Co.:
5.45%, 05/15/41		50		60,215
Series DD, 2.40%, 05/01/30		400		379,422
Series EE, 3.13%, 08/01/50		400		356,035
NextEra Energy Capital Holdings, Inc.:
2.80%, 01/15/23		1,000		1,018,608
3.63%, 06/15/23		1,250		1,279,652
3.15%, 04/01/24		500		511,611
3.55%, 05/01/27		1,000		1,019,410
2.75%, 11/01/29		245		236,202
Northern States Power Co.:
2.60%, 05/15/23		500		506,397
3.40%, 08/15/42		200		185,111
4.00%, 08/15/45		85		86,980
3.60%, 09/15/47		150		159,910
2.90%, 03/01/50		445		423,314
NSTAR Electric Co., 2.70%, 06/01/26		250		247,570
Oglethorpe Power Corp.:
4.55%, 06/01/44		250		266,342
5.05%, 10/01/48		500		481,932
Ohio Power Co., 4.15%, 04/01/48(a)		1,000		1,046,532

Security	Par (000)		Value
Electric Utilities (continued)
Oncor Electric Delivery Co. LLC:
7.00%, 09/01/22	$	100	$	105,388
3.70%, 11/15/28		355		379,834
5.25%, 09/30/40		250		321,488
5.30%, 06/01/42		75		100,119
3.75%, 04/01/45(a)		250		265,088
3.80%, 09/30/47		1,000		1,000,700
3.80%, 06/01/49		1,000		1,052,445
3.10%, 09/15/49(a)		245		237,625
PacifiCorp:
2.95%, 02/01/22		100		100,823
2.95%, 06/01/23		300		306,442
4.10%, 02/01/42		250		248,509
4.15%, 02/15/50		500		561,481
PECO Energy Co.:
1.70%, 09/15/21		1,000		990,203
3.90%, 03/01/48(a)		1,000		1,102,408
3.00%, 09/15/49		195		186,827
Pennsylvania Electric Co., 6.15%, 10/01/38		250		298,281
Potomac Electric Power Co.:
3.60%, 03/15/24		250		256,319
4.15%, 03/15/43(a)		250		273,254
PPL Capital Funding, Inc.:
3.50%, 12/01/22(a)		2,000		2,001,577
3.40%, 06/01/23(a)		1,250		1,283,745
5.00%, 03/15/44		1,000		1,067,611
4.00%, 09/15/47		500		463,537
PPL Electric Utilities Corp.:
4.75%, 07/15/43		250		293,782
3.00%, 10/01/49		170		163,121
Progress Energy, Inc.:
3.15%, 04/01/22(a)		1,000		1,009,173
7.75%, 03/01/31		50		67,993
Public Service Co. of Colorado:
3.70%, 06/15/28		1,000		1,058,358
3.60%, 09/15/42(a)		250		257,290
3.95%, 03/15/43		200		213,329
4.30%, 03/15/44		75		84,165
3.80%, 06/15/47		1,000		1,040,516
Public Service Co. of New Hampshire, 3.60%, 07/01/49		1,000		1,024,513
Public Service Co. of Oklahoma, Series G, 6.63%, 11/15/37		250		336,537
Public Service Electric & Gas Co.:
2.38%, 05/15/23		250		250,624
3.05%, 11/15/24(a)		250		255,229
3.20%, 05/15/29		500		529,526
2.45%, 01/15/30		400		396,934
3.95%, 05/01/42(a)		50		54,798
3.65%, 09/01/42		50		52,971
3.80%, 03/01/46		1,250		1,325,977
3.85%, 05/01/49		500		558,260

18

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Electric Utilities (continued)
Public Service Electric & Gas Co. (continued):
3.15%, 01/01/50(a)	$	400	$	414,385
Series K, 4.05%, 05/01/45(a)		150		167,859
Public Service Enterprise Group, Inc., 2.88%, 06/15/24(a)		1,000		996,862
Puget Energy, Inc.:
5.63%, 07/15/22		500		499,955
3.65%, 05/15/25		250		244,435
Puget Sound Energy, Inc.:
5.80%, 03/15/40		500		615,772
4.22%, 06/15/48		500		559,952
3.25%, 09/15/49		750		734,183
Sierra Pacific Power Co., 2.60%, 05/01/26		1,250		1,249,521
Southern California Edison Co.:
2.85%, 08/01/29(a)		2,350		2,264,524
5.50%, 03/15/40		50		61,955
4.50%, 09/01/40		1,000		1,031,517
4.65%, 10/01/43		350		383,781
4.00%, 04/01/47(a)		500		520,780
3.65%, 02/01/50(a)		400		388,123
Series A, 5.95%, 02/01/38		500		580,618
Series B, 2.40%, 02/01/22		250		243,597
Series B, 4.88%, 03/01/49		500		576,904
Series C, 3.60%, 02/01/45		250		228,556
Series C, 4.13%, 03/01/48		1,000		1,066,168
Series D, 3.40%, 06/01/23		1,000		1,024,627
Series E, 3.70%, 08/01/25(a)		2,000		2,058,126
Southern Co.:
2.35%, 07/01/21		1,000		999,075
2.95%, 07/01/23		500		502,975
3.25%, 07/01/26		500		497,806
4.40%, 07/01/46(a)		750		779,957
Southern Power Co.(a):
5.25%, 07/15/43		500		494,389
Series E, 2.50%, 12/15/21		1,000		983,605
Southwestern Electric Power Co., Series L, 3.85%, 02/01/48		500		465,917
Southwestern Public Service Co., 3.75%, 06/15/49		1,000		1,047,360
Tampa Electric Co.:
4.10%, 06/15/42		250		265,383
4.45%, 06/15/49		250		270,293
3.63%, 06/15/50(a)		80		79,133
Toledo Edison Co., 6.15%, 05/15/37		100		145,906
Tucson Electric Power Co., 4.85%, 12/01/48		250		281,308
Union Electric Co.:
2.95%, 06/15/27		1,000		1,025,889
4.00%, 04/01/48		1,000		1,113,643
3.25%, 10/01/49(a)		500		454,507

Security	Par (000)		Value
Electric Utilities (continued)
Virginia Electric & Power Co.:
2.95%, 01/15/22	$	400	$	403,118
4.00%, 01/15/43(a)		250		264,943
4.45%, 02/15/44		150		169,831
4.60%, 12/01/48		455		516,448
3.30%, 12/01/49		280		279,577
Series A, 3.15%, 01/15/26		555		577,016
Series A, 3.50%, 03/15/27(a)		750		784,779
Series A, 2.88%, 07/15/29		115		113,907
Series A, 6.00%, 05/15/37		250		320,527
Series B, 6.00%, 01/15/36		1,000		1,271,133
Series B, 3.80%, 09/15/47		1,500		1,521,989
Series D, 4.65%, 08/15/43		500		578,265
WEC Energy Group, Inc., 3.55%, 06/15/25		350		356,041
Wisconsin Electric Power Co., 4.30%, 10/15/48(a)		750		834,860
Wisconsin Power & Light Co., 3.00%, 07/01/29(a)		1,000		1,052,034
Wisconsin Public Service Corp., 3.30%, 09/01/49		625		606,249
Xcel Energy, Inc.:
3.30%, 06/01/25		292		296,134
3.35%, 12/01/26		500		493,725
4.00%, 06/15/28		1,000		1,054,598
2.60%, 12/01/29		200		188,678
4.80%, 09/15/41		250		269,233
3.50%, 12/01/49(a)		200		175,984
				171,002,192
Electrical Equipment — 0.1%
Eaton Corp.:
2.75%, 11/02/22		2,250		2,247,971
3.10%, 09/15/27		190		191,534
4.00%, 11/02/32		200		206,681
4.15%, 11/02/42(a)		250		276,824
Emerson Electric Co.:
2.63%, 12/01/21		750		766,326
2.63%, 02/15/23(a)		350		353,733
Rockwell Automation, Inc., 4.20%, 03/01/49		1,000		1,096,079
Roper Technologies, Inc.:
3.13%, 11/15/22(a)		150		147,234
3.65%, 09/15/23		250		256,099
2.35%, 09/15/24		240		230,754
3.80%, 12/15/26		250		257,610
2.95%, 09/15/29(a)		435		431,747
Tyco Electronics Group SA:
3.50%, 02/03/22		100		98,429

19

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Electrical Equipment (continued)
Tyco Electronics Group SA (continued):
3.45%, 08/01/24(a)	$	75	$	76,556
				6,637,577
Electronic Equipment, Instruments & Components — 0.1%
Amphenol Corp., 2.80%, 02/15/30		1,000		892,481
Arrow Electronics, Inc., 4.00%, 04/01/25(a)		500		470,771
Avnet, Inc., 3.75%, 12/01/21		1,000		1,019,313
Corning, Inc.:
3.70%, 11/15/23		250		264,135
4.75%, 03/15/42		50		52,379
5.35%, 11/15/48(a)		750		881,502
3.90%, 11/15/49		250		243,073
4.38%, 11/15/57(a)		750		774,246
5.45%, 11/15/79(a)		250		256,591
Flex Ltd., 4.88%, 06/15/29		500		482,210
Honeywell International, Inc.:
1.85%, 11/01/21		3,000		3,001,498
2.30%, 08/15/24(a)		1,000		992,929
2.70%, 08/15/29		1,500		1,504,664
3.81%, 11/21/47		500		549,687
Jabil, Inc., 4.70%, 09/15/22		250		249,289
Keysight Technologies, Inc., 3.00%, 10/30/29		800		754,950
				12,389,718
Energy Equipment & Services — 0.1%
Baker Hughes a GE Co. LLC, 5.13%, 09/15/40		100		89,622
Baker Hughes a GE Co. LLC/Baker Hughes Co-Obligor, Inc.:
2.77%, 12/15/22		500		476,062
3.34%, 12/15/27		450		429,186
3.14%, 11/07/29		325		287,212
4.08%, 12/15/47		1,500		1,230,924
Halliburton Co.:
3.80%, 11/15/25		2,415		2,279,325
4.85%, 11/15/35		1,000		775,132
4.50%, 11/15/41		50		39,529
4.75%, 08/01/43		250		191,962
5.00%, 11/15/45		1,175		907,557
National Oilwell Varco, Inc.:
2.60%, 12/01/22		427		385,435
3.60%, 12/01/29		1,000		746,516
3.95%, 12/01/42		150		93,959
TechnipFMC PLC, 3.45%, 10/01/22		100		95,560
				8,027,981
Equity Real Estate Investment Trusts (REITs) — 0.7%
Alexandria Real Estate Equities, Inc.:
3.90%, 06/15/23(a)		2,000		2,012,024
4.30%, 01/15/26		750		773,729
3.38%, 08/15/31		820		797,840

Security	Par (000)		Value
Equity Real Estate Investment Trusts (REITs) (continued)
Alexandria Real Estate Equities, Inc. (continued):
4.00%, 02/01/50	$	1,000	$	904,622
American Campus Communities Operating Partnership LP:
3.30%, 07/15/26		1,000		986,185
2.85%, 02/01/30		500		467,678
American Tower Corp.:
4.70%, 03/15/22		100		101,562
3.00%, 06/15/23		1,000		1,001,314
5.00%, 02/15/24(a)		1,000		1,058,436
2.40%, 03/15/25		585		574,330
4.40%, 02/15/26		30		31,447
3.38%, 10/15/26		500		495,374
2.75%, 01/15/27(a)		435		419,692
3.80%, 08/15/29(a)		500		506,150
3.70%, 10/15/49(a)		425		391,803
AvalonBay Communities, Inc.:
2.95%, 09/15/22		100		95,686
3.45%, 06/01/25		100		102,590
3.20%, 01/15/28(a)		2,000		1,986,973
3.30%, 06/01/29(a)		255		254,183
3.90%, 10/15/46		250		235,647
Boston Properties LP:
4.13%, 05/15/21		250		249,050
3.85%, 02/01/23(a)		1,000		1,004,190
3.13%, 09/01/23		250		249,765
3.20%, 01/15/25		1,000		1,009,200
3.65%, 02/01/26		190		192,688
4.50%, 12/01/28(a)		1,000		1,098,677
2.90%, 03/15/30(a)		480		440,831
Brixmor Operating Partnership LP:
3.65%, 06/15/24		750		697,891
4.13%, 06/15/26		250		260,840
4.13%, 05/15/29		1,250		1,268,509
Choice Hotels International, Inc., 3.70%, 12/01/29		200		160,000
Crown Castle International Corp.:
2.25%, 09/01/21(a)		1,000		986,154
3.70%, 06/15/26		280		286,108
4.00%, 03/01/27(a)		1,000		1,029,797
3.80%, 02/15/28(a)		2,000		2,044,523
4.00%, 11/15/49		585		527,346
CubeSmart LP, 3.00%, 02/15/30(a)		1,500		1,396,576
Digital Realty Trust LP:
4.75%, 10/01/25(a)		500		521,530
3.70%, 08/15/27		1,000		992,838
3.60%, 07/01/29		750		731,026
Duke Realty LP, 2.88%, 11/15/29		540		518,715
EPR Properties:
4.50%, 06/01/27		1,000		904,039
3.75%, 08/15/29		845		631,807

20

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Equity Real Estate Investment Trusts (REITs) (continued)
ERP Operating LP:
4.63%, 12/15/21	$	2,000	$	2,044,284
3.00%, 04/15/23		500		505,208
3.25%, 08/01/27		500		497,931
3.50%, 03/01/28(a)		1,000		928,619
3.00%, 07/01/29		735		719,178
2.50%, 02/15/30		405		375,739
4.50%, 07/01/44(a)		150		163,144
Essex Portfolio LP:
3.88%, 05/01/24		100		100,236
4.00%, 03/01/29		1,000		1,023,610
3.00%, 01/15/30(a)		200		189,367
2.65%, 03/15/32		95		84,289
Federal Realty Investment Trust, 3.25%, 07/15/27		500		492,963
GLP Capital LP/GLP Financing II, Inc., 5.25%, 06/01/25		400		370,000
Healthcare Trust of America Holdings LP, 3.10%, 02/15/30		1,000		893,288
Healthpeak Properties, Inc.:
3.15%, 08/01/22		100		100,139
3.40%, 02/01/25		500		494,388
4.00%, 06/01/25(a)		500		496,329
3.50%, 07/15/29		1,500		1,465,701
3.00%, 01/15/30		530		505,311
Host Hotels & Resorts LP:
Series E, 4.00%, 06/15/25(a)		190		176,655
Series H, 3.38%, 12/15/29		1,000		842,344
Hudson Pacific Properties LP, 4.65%, 04/01/29		1,000		1,025,223
Kilroy Realty LP, 3.05%, 02/15/30		1,000		915,479
Kimco Realty Corp.:
3.20%, 05/01/21		250		246,011
3.30%, 02/01/25		350		342,723
2.80%, 10/01/26		500		483,459
4.45%, 09/01/47		350		315,974
3.70%, 10/01/49		500		407,085
Life Storage LP, 4.00%, 06/15/29(a)		1,000		1,015,368
Mid-America Apartments LP:
4.30%, 10/15/23		200		198,893
3.95%, 03/15/29(a)		500		509,468
National Retail Properties, Inc.:
3.30%, 04/15/23		500		503,379
4.30%, 10/15/28(a)		1,000		1,017,771
Omega Healthcare Investors, Inc.:
4.50%, 04/01/27		250		246,953
4.75%, 01/15/28		500		534,366
3.63%, 10/01/29		600		519,792
Realty Income Corp.:
4.65%, 08/01/23		250		261,382
4.13%, 10/15/26		1,000		985,211
3.00%, 01/15/27		1,000		947,232
3.25%, 06/15/29(a)		975		937,682

Security	Par (000)		Value
Equity Real Estate Investment Trusts (REITs) (continued)
Sabra Health Care LP/Sabra Capital Corp., 3.90%, 10/15/29	$	1,000	$	893,654
Service Properties Trust:
5.00%, 08/15/22		200		143,126
4.95%, 02/15/27		1,000		757,784
4.35%, 10/01/24		1,000		734,046
Simon Property Group LP:
2.35%, 01/30/22		2,000		1,972,616
2.63%, 06/15/22		250		246,222
2.00%, 09/13/24		1,040		1,001,412
3.38%, 10/01/24		500		490,889
3.30%, 01/15/26(a)		1,500		1,506,103
3.38%, 06/15/27		750		728,765
2.45%, 09/13/29(a)		500		453,213
4.75%, 03/15/42		100		98,799
4.25%, 10/01/44(a)		250		231,357
4.25%, 11/30/46		500		454,429
3.25%, 09/13/49		655		526,903
SITE Centers Corp., 4.25%, 02/01/26		250		254,634
Spirit Realty LP:
4.00%, 07/15/29		425		415,304
3.40%, 01/15/30(a)		500		429,618
UDR, Inc.:
4.40%, 01/26/29(a)		1,000		1,036,444
3.20%, 01/15/30		500		492,019
3.00%, 08/15/31		500		477,769
Ventas Realty LP:
2.65%, 01/15/25		650		624,076
4.13%, 01/15/26		1,250		1,249,057
3.25%, 10/15/26		500		472,376
4.00%, 03/01/28(a)		1,500		1,415,038
3.00%, 01/15/30(a)		1,000		898,496
VEREIT Operating Partnership LP, 3.95%, 08/15/27		500		465,304
Welltower, Inc.:
4.00%, 06/01/25		1,250		1,213,226
4.25%, 04/01/26(a)		350		360,425
4.13%, 03/15/29		1,000		1,020,723
3.10%, 01/15/30		1,000		944,160
Weyerhaeuser Co.(a):
4.00%, 11/15/29		1,000		1,011,776
7.38%, 03/15/32		350		412,575
WP Carey, Inc., 3.85%, 07/15/29(a)		475		462,932
				78,176,809
Food & Staples Retailing — 0.3%
CVS Caremark Corp., 2.75%, 12/01/22(a)		2,000		2,013,945
Koninklijke Ahold Delhaize NV, 5.70%, 10/01/40		73		93,087
Kroger Co.:
3.40%, 04/15/22(a)		100		102,909
3.50%, 02/01/26		495		521,496

21

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Food & Staples Retailing (continued)
Kroger Co. (continued):
2.65%, 10/15/26(a)	$	1,000	$	1,014,660
3.70%, 08/01/27		500		533,555
4.50%, 01/15/29		1,000		1,117,229
5.15%, 08/01/43		125		144,715
3.88%, 10/15/46		500		489,545
4.65%, 01/15/48(a)		500		565,483
5.40%, 01/15/49		500		601,685
3.95%, 01/15/50(a)		300		309,973
Mondelez International, Inc.:
3.63%, 05/07/23		500		524,652
4.63%, 05/07/48		500		564,271
Target Corp.:
2.25%, 04/15/25		920		938,595
2.35%, 02/15/30		480		479,527
2.65%, 09/15/30		160		164,727
Walgreen Co., 3.10%, 09/15/22		200		200,272
Walgreens Boots Alliance, Inc.:
3.30%, 11/18/21		500		507,312
3.80%, 11/18/24(a)		1,000		1,021,073
3.45%, 06/01/26		1,305		1,289,584
4.50%, 11/18/34		155		159,815
4.80%, 11/18/44		150		148,787
4.65%, 06/01/46(a)		1,000		956,624
Walmart, Inc.:
3.13%, 06/23/21		4,500		4,597,993
2.35%, 12/15/22(a)		1,250		1,282,360
3.30%, 04/22/24		1,750		1,857,220
2.85%, 07/08/24(a)		2,500		2,628,213
2.65%, 12/15/24		250		260,233
3.70%, 06/26/28(a)		1,000		1,122,241
3.25%, 07/08/29(a)		250		274,772
2.38%, 09/24/29(a)		275		284,401
3.95%, 06/28/38		1,000		1,187,355
4.88%, 07/08/40		2,000		2,590,018
4.00%, 04/11/43(a)		150		183,019
4.30%, 04/22/44		750		923,482
3.63%, 12/15/47		1,000		1,138,827
4.05%, 06/29/48		1,900		2,370,593
2.95%, 09/24/49(a)		495		542,410
				35,706,658
Food Products — 0.2%
Archer-Daniels-Midland Co.:
2.50%, 08/11/26(a)		1,750		1,767,214
4.54%, 03/26/42		75		87,958
4.02%, 04/16/43		250		276,414
4.50%, 03/15/49		1,000		1,206,119
Bunge, Ltd. Finance Corp., 3.75%, 09/25/27		1,000		859,611
Campbell Soup Co.:
3.65%, 03/15/23		1,000		1,018,629
3.30%, 03/19/25(a)		500		495,697

Security	Par (000)		Value
Food Products (continued)
Campbell Soup Co. (continued):
4.80%, 03/15/48(a)	$	750	$	894,065
Conagra Brands, Inc.:
3.25%, 09/15/22		200		196,322
3.20%, 01/25/23(a)		500		493,574
4.30%, 05/01/24		1,000		1,035,027
4.60%, 11/01/25		1,000		1,054,708
5.30%, 11/01/38(a)		1,000		1,087,317
5.40%, 11/01/48		500		562,523
General Mills, Inc.:
3.15%, 12/15/21(a)		650		658,404
2.60%, 10/12/22		250		251,878
3.65%, 02/15/24		500		516,297
3.20%, 02/10/27(a)		250		262,415
4.20%, 04/17/28(a)		1,000		1,101,021
4.15%, 02/15/43		300		302,388
4.70%, 04/17/48		750		867,686
JM Smucker Co.:
3.50%, 10/15/21		50		50,760
3.50%, 03/15/25(a)		1,250		1,281,267
4.25%, 03/15/35(a)		250		256,621
4.38%, 03/15/45		500		496,627
Kellogg Co.:
2.65%, 12/01/23(a)		1,000		1,006,974
3.25%, 04/01/26		65		66,835
4.30%, 05/15/28		1,000		1,080,632
4.50%, 04/01/46		350		391,153
Sysco Corp.:
3.55%, 03/15/25		1,000		1,015,935
3.75%, 10/01/25		100		97,585
3.30%, 07/15/26		130		123,639
4.85%, 10/01/45		150		141,128
4.50%, 04/01/46		250		239,994
4.45%, 03/15/48(a)		500		475,922
Tyson Foods, Inc.:
2.25%, 08/23/21		1,000		995,408
4.50%, 06/15/22(a)		150		155,105
3.55%, 06/02/27		1,000		1,024,681
4.88%, 08/15/34		70		85,289
5.15%, 08/15/44		250		295,627
4.55%, 06/02/47(a)		250		266,747
5.10%, 09/28/48(a)		1,500		1,858,599
				26,401,795
Forest Products — 0.0%
Hershey Co.:
2.05%, 11/15/24		500		497,933
2.45%, 11/15/29		500		494,521

22

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Forest Products (continued)
Hershey Co. (continued):
3.13%, 11/15/49	$	500	$	468,345
				1,460,799
Gas Utilities — 0.1%
Atmos Energy Corp.:
2.63%, 09/15/29		210		207,912
4.15%, 01/15/43(a)		100		105,753
4.30%, 10/01/48		500		562,794
4.13%, 03/15/49		500		545,149
3.38%, 09/15/49(a)		630		608,462
National Fuel Gas Co.:
4.90%, 12/01/21(a)		600		577,646
3.75%, 03/01/23		300		280,563
NiSource, Inc.:
3.65%, 06/15/23		1,000		1,024,125
2.95%, 09/01/29(a)		1,000		948,827
5.95%, 06/15/41		1,050		1,209,762
5.25%, 02/15/43		75		80,891
4.80%, 02/15/44(a)		250		252,291
4.38%, 05/15/47(a)		500		506,421
Sempra Energy:
4.05%, 12/01/23(a)		250		254,420
3.55%, 06/15/24		250		250,473
3.75%, 11/15/25		250		246,811
3.40%, 02/01/28		2,000		2,004,050
4.00%, 02/01/48(a)		1,000		957,281
Southern California Gas Co.:
Series TT, 2.60%, 06/15/26		1,250		1,234,407
Series UU, 4.13%, 06/01/48		250		265,725
Southern Co. Gas Capital Corp.:
3.50%, 09/15/21		50		50,175
2.45%, 10/01/23		1,000		1,011,605
3.95%, 10/01/46		750		670,149
				13,855,692
Health Care Equipment & Supplies — 0.2%
Baxter International, Inc.:
1.70%, 08/15/21		1,000		996,900
2.60%, 08/15/26		730		726,080
Becton Dickinson & Co.:
2.89%, 06/06/22		500		499,067
3.30%, 03/01/23		200		201,605
3.36%, 06/06/24(a)		1,000		999,627
3.73%, 12/15/24		1,250		1,281,359
3.70%, 06/06/27		1,630		1,645,384
6.00%, 05/15/39		250		279,791
4.69%, 12/15/44		196		205,957
4.67%, 06/06/47(a)		500		538,786
Boston Scientific Corp.:
3.85%, 05/15/25		382		399,816
4.00%, 03/01/29(a)		250		264,739
4.55%, 03/01/39		1,000		1,098,203

Security	Par (000)		Value
Health Care Equipment & Supplies (continued)
Boston Scientific Corp. (continued):
4.70%, 03/01/49	$	800	$	913,537
DH Europe Finance II Sarl:
2.05%, 11/15/22		300		294,293
2.20%, 11/15/24		1,000		971,431
2.60%, 11/15/29		445		432,173
3.25%, 11/15/39		400		395,412
3.40%, 11/15/49		675		656,657
Medtronic Global Holdings SCA, 3.35%, 04/01/27(a)		250		266,335
Medtronic, Inc.:
3.15%, 03/15/22		1,350		1,399,923
3.63%, 03/15/24		400		425,332
3.50%, 03/15/25		584		628,196
4.38%, 03/15/35(a)		350		431,694
4.63%, 03/15/45		1,750		2,337,206
Stryker Corp.:
3.38%, 11/01/25(a)		580		613,328
3.50%, 03/15/26		500		521,315
4.63%, 03/15/46		1,250		1,471,341
Zimmer Biomet Holdings, Inc.:
3.15%, 04/01/22		1,500		1,500,175
3.55%, 04/01/25		750		756,863
4.45%, 08/15/45		500		488,571
				23,641,096
Health Care Providers & Services — 0.7%
Adventist Health System/West, 3.63%, 03/01/49		197		203,446
Advocate Health & Hospitals Corp.:
3.83%, 08/15/28		74		81,195
4.27%, 08/15/48		107		129,302
3.39%, 10/15/49		85		88,155
Aetna, Inc.:
2.75%, 11/15/22		2,250		2,254,125
2.80%, 06/15/23		1,500		1,502,436
3.50%, 11/15/24		320		324,331
6.75%, 12/15/37		300		390,303
4.50%, 05/15/42(a)		250		260,094
4.75%, 03/15/44		25		26,993
3.88%, 08/15/47		1,050		1,073,101
Allina Health System, Series 2019, 3.89%, 04/15/49		220		234,359
Anthem, Inc.:
3.13%, 05/15/22		1,200		1,220,849
2.95%, 12/01/22		1,000		1,022,576
3.30%, 01/15/23		100		101,505
3.50%, 08/15/24		250		256,510
2.38%, 01/15/25		160		158,426
4.63%, 05/15/42		50		54,904
4.65%, 01/15/43(a)		2,000		2,218,149
5.10%, 01/15/44(a)		900		1,055,070
4.65%, 08/15/44		350		383,625

23

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Health Care Providers & Services (continued)
Anthem, Inc. (continued):
4.38%, 12/01/47(a)	$	1,000	$	1,075,010
Ascension Health:
3.95%, 11/15/46		1,000		1,159,718
Series B, 2.53%, 11/15/29		150		155,034
Series B, 3.11%, 11/15/39		52		52,732
Children’s Hospital Corp., Series 2017, 4.12%, 01/01/47		200		245,224
CHRISTUS Health, Series C, 4.34%, 07/01/28		155		176,458
Cigna Corp.:
3.05%, 11/30/22(b)		3,000		3,079,568
3.00%, 07/15/23(b)		1,000		1,023,921
3.75%, 07/15/23		1,330		1,367,412
3.50%, 06/15/24(a)(b)		750		760,471
3.25%, 04/15/25(b)		300		305,965
4.13%, 11/15/25		1,000		1,069,673
4.50%, 02/25/26(b)		250		269,530
3.40%, 03/01/27(b)		750		759,041
4.38%, 10/15/28		2,000		2,146,389
4.80%, 08/15/38		1,000		1,122,739
4.80%, 07/15/46(b)		250		295,675
3.88%, 10/15/47(b)		750		749,504
4.90%, 12/15/48(a)		1,500		1,799,684
CommonSpirit Health:
2.76%, 10/01/24(a)		245		244,709
3.35%, 10/01/29		132		124,032
3.82%, 10/01/49		251		258,679
4.19%, 10/01/49		400		375,729
Cottage Health Obligated Group, Series 2020, 3.30%, 11/01/49		46		46,831
Dartmouth-Hitchcock Health, Series B, 4.18%, 08/01/48		100		110,030
Dignity Health, 5.27%, 11/01/64		100		116,577
Duke University Health System, Inc., Series 2017, 3.92%, 06/01/47		173		196,508
Hartford HealthCare Corp., 3.45%, 07/01/54		175		165,901
HCA, Inc.:
4.75%, 05/01/23		3,000		3,073,494
5.25%, 04/15/25		1,000		1,048,771
4.13%, 06/15/29		750		751,292
5.13%, 06/15/39		1,000		1,031,828
5.50%, 06/15/47		1,000		1,086,658
5.25%, 06/15/49(a)		750		799,607
Humana, Inc.:
3.85%, 10/01/24(a)		500		508,478
3.13%, 08/15/29(a)		500		474,187
4.63%, 12/01/42		1,000		1,098,318
4.95%, 10/01/44(a)		250		283,776
4.80%, 03/15/47		200		222,865
Johns Hopkins Health System Corp., 3.84%, 05/15/46		175		203,060

Security	Par (000)		Value
Health Care Providers & Services (continued)
Kaiser Foundation Hospitals:
3.50%, 04/01/22(a)	$	100	$	102,713
3.15%, 05/01/27		500		514,109
4.15%, 05/01/47		1,110		1,288,459
Series 2019, 3.27%, 11/01/49		325		323,195
Laboratory Corp. of America Holdings:
3.75%, 08/23/22		100		103,435
4.00%, 11/01/23		100		103,267
3.25%, 09/01/24		1,000		1,019,439
3.60%, 02/01/25(a)		75		77,662
3.60%, 09/01/27(a)		500		517,771
4.70%, 02/01/45(a)		450		510,967
Mayo Clinic, Series 2016, 4.13%, 11/15/52		300		356,781
McKesson Corp.:
2.85%, 03/15/23		150		152,321
3.80%, 03/15/24(a)		1,500		1,556,193
3.95%, 02/16/28(a)		1,000		1,050,716
MedStar Health, Inc., Series 20A, 3.63%, 08/15/49		99		104,856
Memorial Health Services, 3.45%, 11/01/49		175		178,937
Memorial Sloan-Kettering Cancer Center:
5.00%, 07/01/42		200		257,303
4.13%, 07/01/52(a)		200		237,336
Mercy Health, Series 2018, 4.30%, 07/01/28		64		74,701
Montefiore Obligated Group, 4.29%, 09/01/50		364		313,014
Mount Sinai Hospitals Group, Inc.(a):
Series 2017, 3.98%, 07/01/48		66		69,045
Series 2019, 3.74%, 07/01/49		300		307,192
New York and Presbyterian Hospital:
4.02%, 08/01/45		150		159,482
Series 2019, 3.95%, 08/01/19		207		206,399
Northwell Healthcare, Inc.:
3.98%, 11/01/46(a)		200		206,053
4.26%, 11/01/47		70		74,763
3.81%, 11/01/49		162		161,378
Orlando Health Obligated Group, 4.09%, 10/01/48		29		30,796
Partners Healthcare System, Inc.:
Series 2017, 3.77%, 07/01/48		85		93,564
Series 2020, 3.19%, 07/01/49(a)		500		497,768
PeaceHealth Obligated Group, Series 2018, 4.79%, 11/15/48		79		99,337
Providence St Joseph Health Obligated Group:
Series 19A, 2.53%, 10/01/29		325		318,047
Series A, 3.93%, 10/01/48		77		84,695
Quest Diagnostics, Inc.:
4.70%, 04/01/21		100		101,151

24

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Health Care Providers & Services (continued)
Quest Diagnostics, Inc. (continued):
4.25%, 04/01/24	$	250	$	268,587
3.50%, 03/30/25		370		378,530
4.20%, 06/30/29		250		269,520
2.95%, 06/30/30		425		416,634
4.70%, 03/30/45		250		275,371
RWJ Barnabas Health, Inc., 3.95%, 07/01/46		230		254,790
Spectrum Health System Obligated Group, Series 19A, 3.49%, 07/15/49		85		87,576
Stanford Health Care, Series 2018, 3.80%, 11/15/48		64		68,687
Sutter Health, :
3.70%, 08/15/28		86		90,241
4.09%, 08/15/48		107		114,312
Toledo Hospital:
6.02%, 11/15/48(a)		125		136,673
Series B, 5.33%, 11/15/28		125		131,456
Trinity Health Corp., Series 2019, 3.43%, 12/01/48		137		143,142
UnitedHealth Group, Inc.:
2.13%, 03/15/21		1,500		1,499,844
3.15%, 06/15/21		2,000		2,027,854
3.35%, 07/15/22(a)		750		775,621
2.88%, 03/15/23		250		258,862
2.38%, 08/15/24		425		434,752
3.10%, 03/15/26(a)		500		527,809
3.45%, 01/15/27		500		536,213
3.38%, 04/15/27		1,000		1,069,425
3.85%, 06/15/28(a)		1,000		1,114,244
2.88%, 08/15/29(a)		1,890		1,978,650
4.63%, 07/15/35		555		660,521
6.88%, 02/15/38		100		146,648
3.50%, 08/15/39(a)		645		695,590
5.95%, 02/15/41		100		138,236
3.95%, 10/15/42		150		170,530
4.75%, 07/15/45		1,500		1,910,067
4.20%, 01/15/47		750		881,495
4.25%, 04/15/47		1,000		1,177,199
3.75%, 10/15/47		500		552,380
4.25%, 06/15/48(a)		400		471,593
3.70%, 08/15/49(a)		1,500		1,661,790
3.88%, 08/15/59		500		549,467
Willis-Knighton Medical Center, Series 2018, 4.81%, 09/01/48		108		129,053
				76,130,739
Hotels, Restaurants & Leisure — 0.3%
GLP Capital LP/GLP Financing II, Inc.:
3.35%, 09/01/24		215		190,275
5.30%, 01/15/29		1,000		855,200
4.00%, 01/15/30		980		823,984

Security	Par (000)		Value
Hotels, Restaurants & Leisure (continued)
Hyatt Hotels Corp.:
3.38%, 07/15/23	$	190	$	175,132
4.38%, 09/15/28		305		278,470
Las Vegas Sands Corp.:
3.20%, 08/08/24(a)		2,745		2,477,573
3.50%, 08/18/26		270		246,963
3.90%, 08/08/29(a)		185		159,442
Marriott International, Inc.:
2.30%, 01/15/22		2,000		1,874,624
3.25%, 09/15/22		100		91,834
2.13%, 10/03/22		1,000		900,029
McDonald’s Corp.:
2.63%, 01/15/22		3,000		3,024,125
3.35%, 04/01/23(a)		250		258,275
3.25%, 06/10/24		400		412,880
3.38%, 05/26/25		500		520,471
3.30%, 07/01/25		115		119,570
3.70%, 01/30/26		250		261,501
3.50%, 03/01/27		1,000		1,039,983
3.80%, 04/01/28		1,000		1,058,799
3.60%, 07/01/30		125		131,241
4.70%, 12/09/35(a)		315		355,400
6.30%, 03/01/38		1,000		1,367,400
3.70%, 02/15/42(a)		100		103,530
4.88%, 12/09/45(a)		750		875,861
4.45%, 03/01/47		500		540,802
4.45%, 09/01/48(a)		500		554,095
3.63%, 09/01/49(a)		875		882,827
4.20%, 04/01/50		590		659,941
Regency Centers LP, 2.95%, 09/15/29(a)		1,000		941,694
Sands China Ltd.:
4.60%, 08/08/23(a)		500		503,775
5.13%, 08/08/25		500		499,160
5.40%, 08/08/28(a)		1,750		1,650,722
Starbucks Corp.:
2.70%, 06/15/22		500		507,899
3.10%, 03/01/23		2,000		2,036,545
3.85%, 10/01/23		250		261,606
3.80%, 08/15/25(a)		1,000		1,060,446
4.00%, 11/15/28		500		518,222
3.55%, 08/15/29		1,250		1,285,979
3.75%, 12/01/47		1,000		962,682
				30,468,957
Household Durables — 0.0%
DR Horton, Inc., 2.50%, 10/15/24		425		397,001
Leggett & Platt, Inc., 3.80%, 11/15/24		200		218,993
Mohawk Industries, Inc., 3.85%, 02/01/23		125		127,090
Whirlpool Corp.:
5.15%, 03/01/43		200		202,343

25

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Household Durables (continued)
Whirlpool Corp. (continued):
4.50%, 06/01/46	$	250	$	238,422
				1,183,849
Household Products — 0.0%
Clorox Co.:
3.05%, 09/15/22		50		51,698
3.50%, 12/15/24(a)		250		270,490
Kimberly-Clark Corp.:
2.65%, 03/01/25(a)		85		87,226
2.75%, 02/15/26(a)		500		511,325
5.30%, 03/01/41(a)		250		345,708
3.20%, 07/30/46		210		195,139
3.90%, 05/04/47		750		830,405
				2,291,991
Industrial Conglomerates — 0.2%
3M Co.:
1.63%, 09/19/21(a)		500		500,132
2.00%, 06/26/22		500		501,016
1.75%, 02/14/23		500		502,048
2.00%, 02/14/25(a)		1,000		1,028,970
3.00%, 08/07/25		250		262,466
2.88%, 10/15/27(a)		750		796,918
2.38%, 08/26/29(a)		985		988,557
3.13%, 09/19/46		250		226,970
3.63%, 10/15/47		600		602,560
4.00%, 09/14/48		1,000		1,153,530
3.25%, 08/26/49		430		434,736
Crane Co., 4.45%, 12/15/23		125		137,923
Dover Corp.:
3.15%, 11/15/25		250		260,150
2.95%, 11/04/29		170		169,363
General Electric Co.:
4.65%, 10/17/21		201		204,510
2.70%, 10/09/22		1,000		971,391
3.10%, 01/09/23(a)		1,500		1,510,965
3.45%, 05/15/24(a)		2,086		2,060,540
6.75%, 03/15/32		394		467,880
5.88%, 01/14/38		2,215		2,552,033
6.88%, 01/10/39		1,322		1,635,433
4.13%, 10/09/42(a)		560		528,674
4.50%, 03/11/44		300		295,096
Ingersoll-Rand Global Holding Co. Ltd., 4.30%, 02/21/48		500		557,163
Koninklijke Philips NV, 5.00%, 03/15/42		250		298,836
				18,647,860
Insurance — 0.7%
Aflac, Inc.:
3.63%, 06/15/23		250		249,543
3.63%, 11/15/24		250		262,573
2.88%, 10/15/26		750		740,456
4.75%, 01/15/49(a)		500		546,393

Security	Par (000)		Value
Insurance (continued)
Alleghany Corp., 4.95%, 06/27/22(a)	$	550	$	578,604
Allstate Corp.:
3.15%, 06/15/23		250		253,903
3.28%, 12/15/26		750		777,818
4.50%, 06/15/43		150		176,416
4.20%, 12/15/46		1,000		1,107,814
American Financial Group, Inc., 4.50%, 06/15/47		750		747,234
American International Group, Inc.:
4.88%, 06/01/22(a)		250		256,603
4.13%, 02/15/24(a)		250		261,370
3.75%, 07/10/25(a)		750		750,700
3.90%, 04/01/26		500		514,963
3.88%, 01/15/35		500		474,149
4.70%, 07/10/35		500		505,945
4.50%, 07/16/44		750		760,542
4.80%, 07/10/45		1,750		1,849,213
4.75%, 04/01/48(a)		1,000		1,055,356
Aon Corp.:
2.20%, 11/15/22		335		333,458
4.50%, 12/15/28(a)		1,000		1,107,144
Aon PLC:
2.80%, 03/15/21		250		249,387
3.50%, 06/14/24		1,000		1,038,766
3.88%, 12/15/25		600		625,427
4.60%, 06/14/44		250		272,427
Arch Capital Finance LLC, 4.01%, 12/15/26		1,000		1,010,174
Arch Capital Group US, Inc., 5.14%, 11/01/43		125		153,934
Assured Guaranty US Holdings, Inc., 5.00%, 07/01/24		110		105,031
AXA SA, 8.60%, 12/15/30		550		731,555
Berkshire Hathaway Finance Corp.:
3.00%, 05/15/22(a)		750		779,045
4.40%, 05/15/42		100		121,190
4.30%, 05/15/43		250		300,396
4.20%, 08/15/48(a)		1,000		1,174,203
4.25%, 01/15/49		1,000		1,229,739
Berkshire Hathaway, Inc.:
2.20%, 03/15/21		500		502,391
3.00%, 02/11/23(a)		1,000		1,043,396
2.75%, 03/15/23(a)		1,500		1,552,055
3.13%, 03/15/26(a)		1,400		1,496,679
4.50%, 02/11/43		1,100		1,356,662
Brighthouse Financial, Inc., 3.70%, 06/22/27(a)		2,500		2,167,458
Chubb Corp.:
6.00%, 05/11/37		50		68,620
Series 1, 6.50%, 05/15/38		100		148,365
Chubb INA Holdings, Inc.:
2.88%, 11/03/22(a)		1,000		1,015,090
3.35%, 05/15/24		500		520,059

26

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Insurance (continued)
Chubb INA Holdings, Inc. (continued):
3.35%, 05/03/26	$	795	$	841,765
4.15%, 03/13/43		150		164,217
CNA Financial Corp.:
5.75%, 08/15/21		100		102,483
4.50%, 03/01/26		350		362,172
Equitable Holdings Inc:
4.35%, 04/20/28		1,000		972,210
5.00%, 04/20/48		1,000		943,686
First American Financial Corp., 4.60%, 11/15/24		200		223,490
Hartford Financial Services Group, Inc.:
2.80%, 08/19/29(a)		500		486,195
6.10%, 10/01/41		100		126,670
3.60%, 08/19/49(a)		1,335		1,228,221
Lincoln National Corp.:
4.20%, 03/15/22		1,350		1,370,966
4.00%, 09/01/23		200		200,052
3.35%, 03/09/25		65		65,002
3.80%, 03/01/28(a)		1,500		1,492,152
6.30%, 10/09/37		250		294,387
4.35%, 03/01/48		200		183,018
Loews Corp.:
2.63%, 05/15/23		250		249,845
3.75%, 04/01/26		500		520,292
Manulife Financial Corp.:
4.15%, 03/04/26		500		521,409
(5 year USD Swap + 1.65%), 4.06%, 02/24/32(a)(c)		500		482,190
Markel Corp.:
3.35%, 09/17/29(a)		475		447,949
4.30%, 11/01/47(a)		750		686,113
4.15%, 09/17/50		500		417,373
Marsh & McLennan Cos., Inc.:
4.80%, 07/15/21		50		51,314
2.75%, 01/30/22(a)		1,000		1,009,429
3.30%, 03/14/23		500		508,530
3.88%, 03/15/24		500		517,185
3.50%, 06/03/24		1,000		1,021,485
3.75%, 03/14/26(a)		1,000		1,028,749
4.38%, 03/15/29		1,000		1,101,090
4.90%, 03/15/49		1,000		1,260,372
MetLife, Inc.:
3.00%, 03/01/25(a)		650		640,270
6.38%, 06/15/34		500		648,442
5.88%, 02/06/41		2,000		2,544,976
4.13%, 08/13/42(a)		300		303,575
4.88%, 11/13/43		250		287,308
4.05%, 03/01/45(a)		250		261,395
4.60%, 05/13/46(a)		500		550,289
Old Republic International Corp., 4.88%, 10/01/24		250		264,014

Security	Par (000)		Value
Insurance (continued)
Principal Financial Group, Inc.:
3.40%, 05/15/25(a)	$	250	$	246,682
3.10%, 11/15/26		1,000		1,015,275
3.70%, 05/15/29		135		139,298
4.63%, 09/15/42		50		51,119
4.30%, 11/15/46(a)		250		247,511
Progressive Corp.:
3.75%, 08/23/21(a)		1,050		1,072,536
2.45%, 01/15/27		500		499,835
4.35%, 04/25/44		100		111,773
3.70%, 01/26/45		200		202,817
4.13%, 04/15/47		500		561,408
4.20%, 03/15/48(a)		500		562,386
Prudential Financial, Inc.:
3.50%, 05/15/24(a)		1,000		1,031,917
3.88%, 03/27/28(a)		951		971,812
(3 mo. LIBOR US + 3.04%), 5.20%, 03/15/44(a)(c)		350		306,778
4.60%, 05/15/44		250		249,507
(3 mo. LIBOR US + 2.67%), 5.70%, 09/15/48(c)		1,000		925,000
3.94%, 12/07/49		908		860,164
4.35%, 02/25/50		1,000		1,000,508
3.70%, 03/13/51(a)		1,250		1,139,511
Reinsurance Group of America, Inc., 3.90%, 05/15/29		475		463,288
Travelers Cos., Inc.:
6.75%, 06/20/36		250		350,598
4.60%, 08/01/43(a)		850		1,018,970
4.30%, 08/25/45		250		296,811
4.00%, 05/30/47(a)		250		281,353
4.05%, 03/07/48		1,150		1,311,794
Travelers Property Casualty Corp., 6.38%, 03/15/33		100		135,509
Trinity Acquisition PLC, 4.40%, 03/15/26		500		520,878
Unum Group:
4.00%, 06/15/29(a)		1,000		959,301
5.75%, 08/15/42		250		243,138
4.50%, 12/15/49(a)		250		193,688
Voya Financial, Inc.:
3.65%, 06/15/26		350		350,526
5.70%, 07/15/43		500		580,633
Willis North America, Inc.:
4.50%, 09/15/28		1,500		1,648,008
3.88%, 09/15/49		80		82,407
WR Berkley Corp., 4.63%, 03/15/22		200		171,833
XLIT Ltd., 5.50%, 03/31/45(a)		250		263,416
				75,420,514
Interactive Media & Services — 0.1%
Alphabet, Inc.:
3.63%, 05/19/21		25		25,731
3.38%, 02/25/24(a)		500		549,846

27

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Interactive Media & Services (continued)
Alphabet, Inc. (continued):
2.00%, 08/15/26(a)	$	2,500	$	2,639,418
Baidu, Inc.:
4.13%, 06/30/25		1,000		1,067,500
4.88%, 11/14/28		500		561,785
Booking Holdings, Inc.:
2.75%, 03/15/23(a)		500		490,339
3.60%, 06/01/26		1,500		1,462,940
eBay, Inc.:
2.88%, 08/01/21		1,000		990,881
3.80%, 03/09/22		640		649,008
2.60%, 07/15/22(a)		50		50,105
3.60%, 06/05/27(a)		1,000		1,030,643
				9,518,196
Internet & Direct Marketing Retail — 0.2%
Alibaba Group Holding Ltd.:
3.13%, 11/28/21		475		481,099
3.60%, 11/28/24		1,500		1,574,025
3.40%, 12/06/27(a)		1,000		1,067,970
4.50%, 11/28/34		250		297,187
4.00%, 12/06/37(a)		1,000		1,123,750
4.20%, 12/06/47(a)		1,300		1,579,094
Amazon.com, Inc.:
2.40%, 02/22/23(a)		1,500		1,560,116
2.80%, 08/22/24(a)		1,500		1,593,553
3.15%, 08/22/27(a)		2,750		3,008,359
4.80%, 12/05/34		600		781,109
3.88%, 08/22/37(a)		1,000		1,194,572
4.05%, 08/22/47		2,500		3,257,321
4.25%, 08/22/57(a)		1,000		1,362,349
Expedia Group, Inc.:
4.50%, 08/15/24(a)		250		229,506
3.80%, 02/15/28		750		648,294
3.25%, 02/15/30		325		272,056
				20,030,360
IT Services — 0.3%
Broadridge Financial Solutions, Inc.:
3.40%, 06/27/26(a)		270		268,706
2.90%, 12/01/29		500		472,947
DXC Technology Co., 4.75%, 04/15/27(a)		500		497,976
Fidelity National Information Services, Inc.:
3.50%, 04/15/23(a)		25		25,686
3.00%, 08/15/26(a)		750		756,104
Series 10Y, 4.25%, 05/15/28		1,000		1,104,371
Fiserv, Inc.:
2.75%, 07/01/24(a)		1,120		1,124,259
4.20%, 10/01/28		1,000		1,081,993
3.50%, 07/01/29(a)		1,645		1,711,114
4.40%, 07/01/49(a)		880		931,281

Security	Par (000)		Value
IT Services (continued)
Global Payments, Inc., 4.15%, 08/15/49	$	355	$	336,351
IBM Credit LLC, 3.00%, 02/06/23(a)		500		517,375
International Business Machines Corp.:
2.50%, 01/27/22(a)		600		614,679
2.85%, 05/13/22		2,250		2,307,455
2.88%, 11/09/22(a)		3,400		3,520,818
3.63%, 02/12/24		775		828,093
3.45%, 02/19/26		250		266,110
3.30%, 05/15/26		500		534,346
3.30%, 01/27/27(a)		1,000		1,068,597
3.50%, 05/15/29		4,000		4,339,402
5.88%, 11/29/32		250		347,088
4.00%, 06/20/42(a)		850		950,729
4.70%, 02/19/46		250		284,018
4.25%, 05/15/49		1,925		2,263,102
Verisk Analytics, Inc.:
4.13%, 03/15/29		500		527,277
4.00%, 06/15/25(a)		250		266,850
Western Union Co., 6.20%, 11/17/36(a)		525		505,100
				27,451,827
Leisure Products — 0.0%
Hasbro, Inc.:
2.60%, 11/19/22		305		300,972
3.00%, 11/19/24		500		473,748
3.55%, 11/19/26		300		286,194
3.50%, 09/15/27		250		230,199
3.90%, 11/19/29		300		267,702
6.35%, 03/15/40(a)		500		476,867
5.10%, 05/15/44		60		50,009
				2,085,691
Life Sciences Tools & Services — 0.0%
Agilent Technologies, Inc.:
3.88%, 07/15/23(a)		200		206,323
2.75%, 09/15/29		645		623,888
PerkinElmer, Inc., 3.30%, 09/15/29		1,000		938,147
Thermo Fisher Scientific, Inc.:
4.15%, 02/01/24(a)		250		268,082
3.65%, 12/15/25		500		518,132
3.20%, 08/15/27(a)		500		511,418
2.60%, 10/01/29		970		934,936
4.10%, 08/15/47		500		519,446
				4,520,372
Machinery — 0.2%
Caterpillar, Inc.:
3.90%, 05/27/21		50		51,182
3.40%, 05/15/24		500		524,774
2.60%, 09/19/29		70		69,153
5.20%, 05/27/41(a)		600		735,252
3.80%, 08/15/42(a)		1,450		1,588,069
3.25%, 09/19/49(a)		1,000		961,708

28

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Machinery (continued)
CNH Industrial NV, 4.50%, 08/15/23(a)	$	3,000	$	3,138,367
Cummins, Inc., 3.65%, 10/01/23		250		264,613
Deere & Co.:
3.90%, 06/09/42		550		604,104
2.88%, 09/07/49(a)		385		358,763
Flowserve Corp., 3.50%, 09/15/22		100		99,601
Fortive Corp.(a):
2.35%, 06/15/21		1,000		972,239
3.15%, 06/15/26		500		500,937
Illinois Tool Works, Inc.:
2.65%, 11/15/26(a)		3,000		2,966,136
4.88%, 09/15/41		50		56,978
3.90%, 09/01/42		75		80,686
Ingersoll-Rand Luxembourg Finance SA:
3.55%, 11/01/24		500		511,732
4.65%, 11/01/44		30		34,128
4.50%, 03/21/49		500		558,382
Otis Worldwide Corp.(b):
2.06%, 04/05/25		515		503,329
2.57%, 02/15/30		1,000		971,897
3.36%, 02/15/50		195		189,333
Parker-Hannifin Corp.:
3.25%, 06/14/29(a)		2,000		2,015,998
4.20%, 11/21/34		250		259,257
4.10%, 03/01/47(a)		500		511,300
4.00%, 06/14/49(a)		500		520,003
Stanley Black & Decker, Inc.:
2.90%, 11/01/22		150		150,036
4.25%, 11/15/28		1,000		1,065,979
4.85%, 11/15/48		250		266,220
Valmont Industries, Inc., 5.00%, 10/01/44		1,000		950,782
Westinghouse Air Brake Technologies Corp.:
4.40%, 03/15/24		500		496,744
4.95%, 09/15/28		500		459,444
Xylem, Inc., 4.38%, 11/01/46		500		533,675
				22,970,801
Media — 1.0%
Bell Canada, Inc.:
4.46%, 04/01/48		310		330,604
4.30%, 07/29/49		265		306,457
Charter Communications Operating LLC/Charter Communications Operating Capital:
4.46%, 07/23/22		1,000		1,037,248
4.50%, 02/01/24		2,000		2,060,732
4.91%, 07/23/25		1,930		2,048,875
3.75%, 02/15/28		500		502,304
5.05%, 03/30/29		1,000		1,081,000
6.38%, 10/23/35(a)		250		296,733
5.38%, 04/01/38(a)		1,000		1,078,252

Security	Par (000)		Value
Media (continued)
Charter Communications Operating LLC/Charter Communications Operating Capital (continued):
6.48%, 10/23/45	$	1,500	$	1,809,480
5.38%, 05/01/47(a)		500		539,653
5.75%, 04/01/48		1,000		1,133,883
5.13%, 07/01/49(a)		1,000		1,047,589
4.80%, 03/01/50		1,900		1,977,089
6.83%, 10/23/55		250		295,055
Cintas Corp. No. 2:
2.90%, 04/01/22		250		250,051
3.70%, 04/01/27		500		513,511
Comcast Corp.:
1.63%, 01/15/22(a)		1,000		1,015,848
2.75%, 03/01/23(a)		750		772,768
3.00%, 02/01/24		1,500		1,574,242
3.60%, 03/01/24		250		267,114
3.70%, 04/15/24		1,000		1,073,151
3.10%, 04/01/25		80		84,978
3.38%, 08/15/25(a)		500		530,902
3.95%, 10/15/25		1,250		1,359,174
3.15%, 03/01/26		750		785,960
2.35%, 01/15/27		850		844,048
3.30%, 02/01/27		1,000		1,057,332
3.15%, 02/15/28		250		261,330
3.55%, 05/01/28		1,000		1,080,708
4.15%, 10/15/28		1,720		1,931,239
2.65%, 02/01/30		945		972,203
3.40%, 04/01/30		730		791,247
4.25%, 10/15/30(a)		1,000		1,163,880
4.25%, 01/15/33		650		759,393
4.20%, 08/15/34		2,235		2,552,163
4.40%, 08/15/35(a)		250		299,906
3.20%, 07/15/36(a)		500		522,319
3.90%, 03/01/38(a)		500		561,479
4.60%, 10/15/38(a)		1,500		1,836,028
3.25%, 11/01/39		1,000		1,032,284
4.65%, 07/15/42(a)		1,150		1,453,321
4.75%, 03/01/44		250		317,486
4.60%, 08/15/45		500		636,456
3.40%, 07/15/46(a)		500		540,249
4.00%, 08/15/47		500		583,479
3.97%, 11/01/47		1,500		1,705,953
4.00%, 03/01/48		500		589,971
4.70%, 10/15/48(a)		2,500		3,238,751
4.00%, 11/01/49		1,255		1,480,304
3.45%, 02/01/50		1,800		1,972,088
4.05%, 11/01/52(a)		694		825,836
4.95%, 10/15/58		1,000		1,353,468
Discovery Communications LLC:
4.38%, 06/15/21		50		50,789
2.95%, 03/20/23(a)		1,000		1,005,798
3.25%, 04/01/23		50		49,852

29

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Media (continued)
Discovery Communications LLC (continued):
3.90%, 11/15/24	$	250	$	252,758
3.45%, 03/15/25(a)		1,000		968,148
4.90%, 03/11/26		330		343,321
3.95%, 03/20/28		620		607,801
5.00%, 09/20/37		500		485,644
4.95%, 05/15/42		50		47,609
4.88%, 04/01/43(a)		150		140,254
5.20%, 09/20/47		1,445		1,455,943
5.30%, 05/15/49		500		505,863
Fox Corp.(b):
4.03%, 01/25/24		1,000		1,038,812
4.71%, 01/25/29		1,000		1,095,919
5.48%, 01/25/39		1,000		1,158,833
5.58%, 01/25/49		500		597,990
Grupo Televisa SAB:
4.63%, 01/30/26(a)		2,000		2,049,375
6.63%, 01/15/40		250		294,375
5.00%, 05/13/45		200		197,625
6.13%, 01/31/46		250		283,359
5.25%, 05/24/49		500		515,000
Interpublic Group of Cos., Inc.:
3.75%, 10/01/21		1,000		1,009,643
4.20%, 04/15/24(a)		250		253,267
NBCUniversal Media LLC:
2.88%, 01/15/23(a)		250		257,242
5.95%, 04/01/41		250		343,038
4.45%, 01/15/43(a)		250		315,441
Omnicom Group, Inc., 2.45%, 04/30/30		700		635,575
Omnicom Group, Inc/Omnicom Capital, Inc.:
3.63%, 05/01/22(a)		125		127,200
3.65%, 11/01/24(a)		70		71,396
3.60%, 04/15/26		500		498,957
RELX Capital, Inc., 3.50%, 03/16/23(a)		300		312,360
TCI Communications, Inc., 7.88%, 02/15/26		250		321,188
TELUS Corp.:
4.60%, 11/16/48(a)		200		222,857
4.30%, 06/15/49		500		528,680
Thomson Reuters Corp.:
4.30%, 11/23/23		250		252,734
3.35%, 05/15/26		140		140,071
5.65%, 11/23/43		1,000		1,121,362
Time Warner Cable LLC:
4.00%, 09/01/21(a)		300		300,594
6.55%, 05/01/37(a)		650		729,204
6.75%, 06/15/39		2,050		2,321,403
5.88%, 11/15/40		250		263,181
5.50%, 09/01/41		250		261,145
4.50%, 09/15/42(a)		1,225		1,150,233

Security	Par (000)		Value
Media (continued)
TWDC Enterprises 18 Corp.:
3.75%, 06/01/21	$	50	$	51,047
2.35%, 12/01/22		1,300		1,321,275
3.15%, 09/17/25		165		173,889
3.00%, 02/13/26		200		207,752
1.85%, 07/30/26		1,000		989,586
2.95%, 06/15/27(a)		750		769,710
4.13%, 06/01/44		500		591,242
3.00%, 07/30/46		75		75,558
Series E, 4.13%, 12/01/41		250		292,937
ViacomCBS, Inc.:
4.25%, 09/01/23(a)		1,250		1,274,715
3.70%, 08/15/24		1,000		976,270
3.50%, 01/15/25		500		465,849
4.00%, 01/15/26(a)		1,500		1,472,753
3.38%, 02/15/28(a)		500		465,143
3.70%, 06/01/28(a)		500		467,507
6.88%, 04/30/36		250		281,600
4.85%, 07/01/42		325		285,432
4.38%, 03/15/43(a)		1,070		948,253
5.85%, 09/01/43(a)		100		102,459
5.25%, 04/01/44(a)		250		268,255
4.90%, 08/15/44		1,000		935,139
Walt Disney Co.:
1.65%, 09/01/22(a)		230		231,209
3.00%, 09/15/22		150		153,865
1.75%, 08/30/24		500		500,995
3.70%, 09/15/24(a)		500		535,443
3.70%, 10/15/25		830		902,618
3.38%, 11/15/26		1,500		1,584,552
2.00%, 09/01/29		500		484,652
6.20%, 12/15/34		350		485,641
6.40%, 12/15/35		764		1,071,487
6.65%, 11/15/37		250		360,214
4.75%, 09/15/44		500		627,742
4.95%, 10/15/45		15		19,407
4.75%, 11/15/46(a)		1,500		1,916,577
2.75%, 09/01/49		1,000		983,568
4.70%, 03/23/50		500		653,379
WPP Finance 2010(a):
3.63%, 09/07/22		1,500		1,492,026
3.75%, 09/19/24		250		252,182
				103,389,341
Metal Fabricating — 0.0%
Timken Co., 4.50%, 12/15/28		500		559,159
Metals & Mining — 0.3%
ArcelorMittal SA:
3.60%, 07/16/24		1,000		911,478
6.13%, 06/01/25(a)		1,000		989,908
7.00%, 10/15/39		375		381,259
Barrick Gold Corp., 5.25%, 04/01/42		950		1,120,736

30

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Metals & Mining (continued)
Barrick North America Finance LLC:
5.70%, 05/30/41	$	250	$	307,695
5.75%, 05/01/43		250		320,192
BHP Billiton Finance USA Ltd.:
2.88%, 02/24/22		1,250		1,201,555
5.00%, 09/30/43		1,850		2,389,937
Newmont Corp.:
3.63%, 06/09/21		250		250,875
3.70%, 03/15/23		66		66,312
2.80%, 10/01/29		80		74,374
4.88%, 03/15/42		1,300		1,524,130
Nucor Corp.:
3.95%, 05/01/28(a)		1,000		984,234
5.20%, 08/01/43		250		288,051
4.40%, 05/01/48		500		566,921
Precision Castparts Corp.:
2.50%, 01/15/23(a)		150		151,003
4.20%, 06/15/35		250		284,964
Reliance Steel & Aluminum Co., 4.50%, 04/15/23		25		24,751
Rio Tinto Finance USA Ltd.:
3.75%, 06/15/25		3,500		3,676,220
5.20%, 11/02/40		350		454,220
Rio Tinto Finance USA PLC:
4.75%, 03/22/42		100		119,326
4.13%, 08/21/42		500		588,664
Southern Copper Corp.:
3.50%, 11/08/22		1,000		976,563
3.88%, 04/23/25		750		733,828
6.75%, 04/16/40(a)		1,350		1,485,000
5.88%, 04/23/45(a)		615		649,692
Steel Dynamics, Inc.:
2.80%, 12/15/24		30		27,934
5.00%, 12/15/26		1,100		1,091,005
3.45%, 04/15/30		90		81,446
Teck Resources Ltd., 5.40%, 02/01/43		2,000		1,584,478
Vale Overseas Ltd.:
6.25%, 08/10/26		2,000		2,140,040
6.88%, 11/10/39		1,250		1,372,656
				26,819,447
Multi-Utilities — 0.1%
CenterPoint Energy Resources Corp., 5.85%, 01/15/41		250		300,432
CenterPoint Energy, Inc.:
2.50%, 09/01/24		425		413,209
4.25%, 11/01/28(a)		2,000		2,049,397
2.95%, 03/01/30		1,000		946,101
3.70%, 09/01/49(a)		250		240,043
Dominion Energy Gas Holdings LLC:
3.60%, 12/15/24		250		256,799
Series A, 2.50%, 11/15/24(a)		495		478,648
Series B, 3.00%, 11/15/29		1,000		917,378

Security	Par (000)		Value
Multi-Utilities (continued)
Dominion Energy Gas Holdings LLC (continued):
Series C, 3.90%, 11/15/49	$	300	$	259,100
ONE Gas, Inc., 4.66%, 02/01/44		250		296,374
San Diego Gas & Electric Co.:
3.60%, 09/01/23		250		263,381
4.30%, 04/01/42		100		106,020
4.15%, 05/15/48		1,000		1,075,580
Washington Gas Light Co., 3.65%, 09/15/49		500		446,630
				8,049,092
Multiline Retail — 0.1%
Kohl’s Corp., 5.55%, 07/17/45		100		67,699
Nordstrom, Inc.:
4.00%, 10/15/21		100		96,765
4.38%, 04/01/30		200		159,902
5.00%, 01/15/44		500		349,595
O’Reilly Automotive, Inc.:
4.35%, 06/01/28(a)		1,000		1,028,787
3.90%, 06/01/29		1,000		996,424
Target Corp.(a):
2.90%, 01/15/22		150		151,485
3.50%, 07/01/24		1,000		1,066,180
2.50%, 04/15/26		250		253,522
3.38%, 04/15/29		1,000		1,080,747
4.00%, 07/01/42		350		397,111
3.63%, 04/15/46		850		947,083
3.90%, 11/15/47		500		587,846
				7,183,146
Office Supplies & Equipment — 0.0%
VMware, Inc., 2.95%, 08/21/22(a)		2,000		1,989,579
Oil, Gas & Consumable Fuels — 2.0%
Apache Corp.:
3.25%, 04/15/22		756		567,605
4.38%, 10/15/28		1,000		534,202
4.25%, 01/15/30(a)		750		388,427
5.10%, 09/01/40		250		110,430
5.25%, 02/01/42		250		113,556
4.75%, 04/15/43		250		110,626
4.25%, 01/15/44		600		259,799
5.35%, 07/01/49		500		251,577
Boardwalk Pipelines LP:
3.38%, 02/01/23		200		171,811
4.80%, 05/03/29(a)		500		376,742
BP Capital Markets America, Inc.:
4.74%, 03/11/21		550		557,938
2.11%, 09/16/21		500		492,770
3.25%, 05/06/22		100		101,070
2.52%, 09/19/22		1,000		986,763
2.75%, 05/10/23		350		349,842
3.22%, 11/28/23		1,000		1,023,530

31

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
BP Capital Markets America, Inc. (continued):
3.41%, 02/11/26	$	2,000	$	1,998,361
3.12%, 05/04/26(a)		350		352,346
3.02%, 01/16/27		500		505,554
3.94%, 09/21/28		500		534,068
4.23%, 11/06/28		1,000		1,077,894
BP Capital Markets PLC:
3.56%, 11/01/21		3,000		3,024,724
3.06%, 03/17/22(a)		210		211,228
3.99%, 09/26/23		250		260,894
3.28%, 09/19/27		500		502,824
Canadian Natural Resources Ltd.:
3.45%, 11/15/21		1,100		1,026,852
2.95%, 01/15/23		1,000		867,339
3.80%, 04/15/24		1,250		1,057,366
3.90%, 02/01/25		250		207,065
3.85%, 06/01/27		250		197,700
6.25%, 03/15/38		300		233,514
4.95%, 06/01/47		1,500		1,076,124
Cenovus Energy, Inc.:
4.25%, 04/15/27		213		104,303
5.40%, 06/15/47		327		148,522
Cheniere Corpus Christi Holdings LLC:
7.00%, 06/30/24		1,000		877,566
5.13%, 06/30/27		1,500		1,332,163
3.70%, 11/15/29(b)		500		373,525
Chevron Corp.:
2.10%, 05/16/21		3,000		3,000,990
2.41%, 03/03/22		145		146,115
2.36%, 12/05/22		1,000		1,013,697
3.19%, 06/24/23		500		522,677
3.33%, 11/17/25		500		524,873
2.95%, 05/16/26		1,250		1,295,681
Cimarex Energy Co., 4.38%, 03/15/29		1,000		669,572
CNOOC Finance 2013 Ltd.:
3.00%, 05/09/23		1,300		1,326,406
4.25%, 05/09/43		500		566,094
CNOOC Finance 2015 USA LLC:
3.50%, 05/05/25		500		525,312
4.38%, 05/02/28(a)		2,000		2,278,125
CNOOC Nexen Finance 2014 ULC:
4.25%, 04/30/24		1,750		1,879,609
4.88%, 04/30/44		500		625,625
Columbia Pipeline Group, Inc., 4.50%, 06/01/25		250		246,299
Concho Resources, Inc.:
3.75%, 10/01/27		1,000		848,100
4.88%, 10/01/47(a)		500		385,086
ConocoPhillips, 6.50%, 02/01/39		1,400		1,749,030
ConocoPhillips Co.:
4.95%, 03/15/26(a)		1,000		1,067,708
4.30%, 11/15/44		500		467,926

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
ConocoPhillips Co. (continued):
5.95%, 03/15/46	$	750	$	892,901
ConocoPhillips Holding Co., 6.95%, 04/15/29		850		1,046,186
Devon Energy Corp.:
5.85%, 12/15/25		250		197,577
5.60%, 07/15/41		500		307,653
4.75%, 05/15/42		350		209,645
5.00%, 06/15/45		500		319,595
Diamondback Energy, Inc., 3.50%, 12/01/29		1,000		679,923
Ecopetrol SA:
5.88%, 09/18/23		350		344,400
5.38%, 06/26/26		500		483,734
5.88%, 05/28/45		2,250		2,025,000
Enable Midstream Partners LP:
4.95%, 05/15/28		1,000		602,977
5.00%, 05/15/44		500		212,485
Enbridge Energy Partners LP:
4.20%, 09/15/21		100		98,566
5.88%, 10/15/25		1,500		1,478,230
7.38%, 10/15/45		800		879,651
Enbridge, Inc.:
3.50%, 06/10/24		65		63,933
2.50%, 01/15/25		250		226,386
4.25%, 12/01/26		1,000		989,977
3.70%, 07/15/27		1,000		949,159
3.13%, 11/15/29		250		227,379
4.50%, 06/10/44		250		230,903
4.00%, 11/15/49		250		222,653
Encana Corp.:
3.90%, 11/15/21		1,250		857,310
7.20%, 11/01/31		1,000		438,968
7.38%, 11/01/31(a)		250		112,516
6.50%, 02/01/38		250		108,560
Energy Transfer Operating LP:
5.20%, 02/01/22		250		235,269
3.60%, 02/01/23		150		133,360
4.25%, 03/15/23		1,000		905,500
4.90%, 02/01/24		250		223,721
2.90%, 05/15/25		120		100,342
4.75%, 01/15/26		1,000		911,566
4.20%, 04/15/27		1,000		805,929
3.75%, 05/15/30		400		308,237
4.90%, 03/15/35		250		195,053
5.15%, 02/01/43		500		376,219
5.95%, 10/01/43		150		129,713
5.15%, 03/15/45		2,000		1,546,390
6.13%, 12/15/45		250		223,205
5.30%, 04/15/47		250		189,967
6.25%, 04/15/49		1,500		1,285,452
5.00%, 05/15/50		1,070		832,936
Series 30Y, 6.00%, 06/15/48		1,000		838,810

32

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
Energy Transfer Partners LP/Regency Energy Finance Corp.:
5.88%, 03/01/22	$	500	$	469,686
5.00%, 10/01/22		1,000		910,632
Enterprise Products Operating LLC:
3.90%, 02/15/24		125		127,772
3.75%, 02/15/25		790		785,594
3.70%, 02/15/26		960		958,338
3.95%, 02/15/27		2,000		1,892,058
3.13%, 07/31/29		1,155		1,062,396
2.80%, 01/31/30		860		772,877
5.95%, 02/01/41		150		162,237
4.45%, 02/15/43		325		306,995
4.85%, 03/15/44		200		207,354
5.10%, 02/15/45		250		245,824
4.90%, 05/15/46(a)		1,100		1,053,040
4.25%, 02/15/48		1,000		928,234
4.80%, 02/01/49		1,000		999,877
4.20%, 01/31/50		620		591,518
3.70%, 01/31/51		300		264,560
3.95%, 01/31/60		545		457,971
(3 mo. LIBOR US + 2.57%), 5.38%, 02/15/78(c)		1,000		700,000
Series E, (3 mo. LIBOR US + 3.03%), 5.25%, 08/16/77(c)		750		513,750
EOG Resources, Inc.:
3.15%, 04/01/25		80		78,274
5.10%, 01/15/36		250		234,791
Equinor ASA:
2.75%, 11/10/21		500		504,919
2.65%, 01/15/24		1,500		1,528,468
3.70%, 03/01/24		250		259,722
3.25%, 11/10/24		500		488,577
5.10%, 08/17/40		1,100		1,307,873
4.25%, 11/23/41		300		337,356
3.25%, 11/18/49		750		737,421
Exxon Mobil Corp.:
2.22%, 03/01/21		750		754,877
2.40%, 03/06/22		2,000		2,019,862
1.90%, 08/16/22		270		270,922
2.73%, 03/01/23(a)		1,000		1,030,856
3.18%, 03/15/24		250		261,744
2.02%, 08/16/24		500		497,592
2.71%, 03/06/25		1,250		1,293,493
3.04%, 03/01/26		620		655,449
2.28%, 08/16/26		500		508,942
2.44%, 08/16/29		500		516,373
3.00%, 08/16/39		500		500,106
4.11%, 03/01/46		1,000		1,182,163
3.10%, 08/16/49(a)		1,500		1,518,972
Hess Corp.:
4.30%, 04/01/27		1,500		1,086,317
5.60%, 02/15/41		550		375,600

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
Hess Corp. (continued):
5.80%, 04/01/47	$	1,000	$	665,631
Husky Energy, Inc.:
3.95%, 04/15/22		150		135,850
4.00%, 04/15/24		500		419,366
6.80%, 09/15/37		500		411,101
Kinder Morgan Energy Partners LP:
3.50%, 03/01/21		750		740,322
5.80%, 03/01/21		250		251,699
5.00%, 10/01/21		200		195,772
3.95%, 09/01/22		225		222,998
3.45%, 02/15/23		500		491,905
4.15%, 02/01/24		1,000		1,003,055
4.30%, 05/01/24		500		502,150
4.25%, 09/01/24		155		151,489
5.80%, 03/15/35		1,000		1,062,515
6.50%, 02/01/37		100		103,009
6.95%, 01/15/38		1,250		1,300,122
5.00%, 08/15/42		75		69,873
5.00%, 03/01/43		250		236,999
5.50%, 03/01/44		750		744,831
5.40%, 09/01/44		250		245,001
Kinder Morgan, Inc.:
3.15%, 01/15/23		1,500		1,463,294
4.30%, 06/01/25		410		418,385
4.30%, 03/01/28(a)		500		490,287
5.30%, 12/01/34		250		240,656
5.55%, 06/01/45		1,250		1,274,037
5.05%, 02/15/46		750		728,327
5.20%, 03/01/48(a)		1,250		1,238,429
Magellan Midstream Partners LP:
3.20%, 03/15/25		500		454,036
4.25%, 09/15/46		250		208,026
4.85%, 02/01/49		750		704,221
3.95%, 03/01/50		175		149,035
Marathon Oil Corp.:
2.80%, 11/01/22		400		306,249
3.85%, 06/01/25		250		180,122
4.40%, 07/15/27		1,000		667,109
6.60%, 10/01/37(a)		250		170,905
5.20%, 06/01/45		250		158,294
Marathon Petroleum Corp.:
5.13%, 03/01/21		150		145,434
3.63%, 09/15/24		115		101,957
3.80%, 04/01/28		1,000		879,612
4.75%, 09/15/44		250		190,072
5.85%, 12/15/45		250		207,260
4.50%, 04/01/48		1,000		720,901
MPLX LP:
3.50%, 12/01/22(b)		1,000		957,426
3.38%, 03/15/23		2,000		1,806,592
4.50%, 07/15/23		250		215,160
4.88%, 12/01/24		250		204,126

33

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
MPLX LP (continued):
4.88%, 06/01/25	$	250	$	205,843
4.13%, 03/01/27		1,000		852,095
4.00%, 03/15/28		1,000		867,260
4.50%, 04/15/38		750		585,633
5.20%, 12/01/47(b)		500		418,402
4.70%, 04/15/48		1,750		1,354,526
5.50%, 02/15/49		700		590,340
Nexen, Inc.:
7.88%, 03/15/32		900		1,380,063
6.40%, 05/15/37		400		558,000
Noble Energy, Inc.:
3.85%, 01/15/28		1,500		1,060,993
5.25%, 11/15/43		500		293,736
4.95%, 08/15/47		500		291,197
4.20%, 10/15/49		500		274,904
Occidental Petroleum Corp.:
6.95%, 07/01/24		1,000		562,274
3.50%, 06/15/25		250		127,916
5.55%, 03/15/26		513		271,329
3.00%, 02/15/27		1,974		915,008
3.50%, 08/15/29		150		70,880
4.30%, 08/15/39		11		4,610
6.20%, 03/15/40		505		227,979
4.50%, 07/15/44		155		66,699
ONEOK Partners LP:
3.38%, 10/01/22		500		457,726
4.90%, 03/15/25		250		218,561
6.13%, 02/01/41(a)		300		269,852
ONEOK, Inc.:
2.75%, 09/01/24		430		348,024
4.55%, 07/15/28		500		426,648
3.40%, 09/01/29		1,000		746,475
4.95%, 07/13/47		1,000		787,096
4.45%, 09/01/49		1,000		775,969
Petroleos Mexicanos:
4.63%, 09/21/23(a)		1,050		848,085
4.88%, 01/18/24		250		200,000
4.50%, 01/23/26		2,000		1,451,900
6.88%, 08/04/26		500		378,750
6.50%, 03/13/27		1,750		1,286,524
5.35%, 02/12/28		1,250		868,750
6.50%, 01/23/29		2,000		1,438,950
6.84%, 01/23/30(b)		3,000		2,170,560
5.95%, 01/28/31(b)		3,039		2,096,910
6.63%, 06/15/35		250		167,253
6.50%, 06/02/41		550		352,177
5.50%, 06/27/44		862		531,746
6.38%, 01/23/45		750		472,852
5.63%, 01/23/46		850		518,500
6.75%, 09/21/47		2,473		1,599,042
6.35%, 02/12/48		2,000		1,250,000
7.69%, 01/23/50(b)		3,300		2,244,000

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
Petroleos Mexicanos (continued):
6.95%, 01/28/60(b)	$	1,000	$	675,000
Phillips 66:
4.30%, 04/01/22		1,000		1,003,839
4.65%, 11/15/34		1,355		1,260,263
5.88%, 05/01/42		100		99,252
4.88%, 11/15/44		1,250		1,268,370
Phillips 66 Partners LP:
2.45%, 12/15/24		255		224,305
3.15%, 12/15/29		370		302,881
4.90%, 10/01/46		500		420,887
Pioneer Natural Resources Co., 3.95%, 07/15/22		150		144,498
Plains All American Pipeline LP/PAA Finance Corp.:
3.65%, 06/01/22		500		456,989
2.85%, 01/31/23(a)		250		214,937
3.60%, 11/01/24		750		619,683
4.50%, 12/15/26		500		387,860
5.15%, 06/01/42		50		33,063
4.70%, 06/15/44		750		493,207
4.90%, 02/15/45		1,000		674,385
Regency Energy Partners LP/Regency Energy Finance Corp., 4.50%, 11/01/23		1,000		899,118
Sabine Pass Liquefaction LLC:
5.63%, 03/01/25		1,000		917,892
5.00%, 03/15/27		1,000		849,694
4.20%, 03/15/28		750		643,530
Shell International Finance BV:
1.88%, 05/10/21		250		248,897
1.75%, 09/12/21		1,000		995,252
2.25%, 01/06/23		1,000		996,483
3.40%, 08/12/23		2,000		2,085,376
2.00%, 11/07/24		1,000		993,071
3.25%, 05/11/25		1,250		1,309,728
2.88%, 05/10/26		500		515,171
2.50%, 09/12/26		1,000		1,022,714
2.38%, 11/07/29		1,000		986,108
4.13%, 05/11/35		500		580,005
6.38%, 12/15/38		300		414,156
5.50%, 03/25/40(a)		300		389,178
4.55%, 08/12/43		700		811,958
4.38%, 05/11/45		2,500		2,887,809
4.00%, 05/10/46		1,250		1,388,019
3.75%, 09/12/46		900		962,442
3.13%, 11/07/49		940		924,412
Spectra Energy Partners LP:
4.75%, 03/15/24		250		240,191
3.50%, 03/15/25		250		233,141
3.38%, 10/15/26		1,000		920,789
Suncor Energy, Inc.:
3.60%, 12/01/24		1,165		1,120,153

34

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
Suncor Energy, Inc. (continued):
6.50%, 06/15/38	$	500	$	512,685
6.85%, 06/01/39		250		278,728
4.00%, 11/15/47		1,500		1,366,109
Sunoco Logistics Partners Operations LP:
4.25%, 04/01/24		400		352,868
4.00%, 10/01/27(a)		1,750		1,380,011
4.95%, 01/15/43		250		196,124
5.30%, 04/01/44		100		78,637
5.35%, 05/15/45		250		196,058
5.40%, 10/01/47		500		398,256
TC PipeLines LP:
4.38%, 03/13/25		250		251,164
3.90%, 05/25/27		105		99,120
Total Capital Canada Ltd., 2.75%, 07/15/23		1,150		1,165,516
Total Capital International SA:
2.75%, 06/19/21		250		252,067
2.70%, 01/25/23		500		505,693
3.75%, 04/10/24		1,000		1,048,584
3.46%, 02/19/29		3,000		3,172,727
3.46%, 07/12/49		500		509,686
Total Capital SA, 4.25%, 12/15/21		250		257,758
TransCanada PipeLines Ltd.:
2.50%, 08/01/22		1,000		975,417
3.75%, 10/16/23		500		515,760
4.88%, 01/15/26		850		928,974
4.25%, 05/15/28		750		757,354
4.63%, 03/01/34		1,250		1,200,116
5.60%, 03/31/34		500		533,736
6.20%, 10/15/37		200		232,398
4.75%, 05/15/38		250		248,136
7.25%, 08/15/38		250		294,170
7.63%, 01/15/39		250		323,418
5.00%, 10/16/43		150		153,679
4.88%, 05/15/48(a)		750		777,858
5.10%, 03/15/49		500		560,832
Transcanada Trust, (3 mo. LIBOR US + 4.15%), 5.50%, 09/15/79(c)		250		191,250
Transcontinental Gas Pipe Line Co. LLC:
7.85%, 02/01/26		250		284,634
4.00%, 03/15/28		750		673,266
4.45%, 08/01/42		250		239,825
Valero Energy Corp.:
3.65%, 03/15/25		1,500		1,455,202
3.40%, 09/15/26		750		672,825
4.00%, 04/01/29		1,000		947,466
6.63%, 06/15/37		300		314,539
4.90%, 03/15/45		500		517,332
Western Midstream Operating LP:
4.00%, 07/01/22		20		12,897

Security	Par (000)		Value
Oil, Gas & Consumable Fuels (continued)
Western Midstream Operating LP (continued):
3.10%, 02/01/25	$	55	$	28,036
3.95%, 06/01/25		228		115,333
4.65%, 07/01/26		58		29,541
5.30%, 03/01/48		157		62,756
Williams Cos., Inc.:
4.00%, 11/15/21		250		237,205
3.60%, 03/15/22		750		727,096
3.70%, 01/15/23		3,000		2,773,680
4.30%, 03/04/24		250		233,931
3.90%, 01/15/25		250		230,193
4.00%, 09/15/25		250		219,495
3.75%, 06/15/27		750		687,026
6.30%, 04/15/40		250		249,005
5.75%, 06/24/44		1,000		1,042,417
4.90%, 01/15/45		500		437,420
5.10%, 09/15/45(a)		900		843,565
4.85%, 03/01/48		500		466,162
				217,264,982
Paper & Forest Products — 0.1%
Fibria Overseas Finance, Ltd., 5.50%, 01/17/27(a)		1,000		960,000
Georgia-Pacific LLC, 8.88%, 05/15/31		525		802,202
International Paper Co.:
3.65%, 06/15/24(a)		500		504,069
5.00%, 09/15/35		250		286,273
7.30%, 11/15/39		250		319,316
4.80%, 06/15/44		250		247,745
5.15%, 05/15/46		1,000		1,035,088
4.40%, 08/15/47		500		499,986
4.35%, 08/15/48(a)		750		725,255
WestRock MWV LLC, 8.20%, 01/15/30		100		141,841
				5,521,775
Personal Products — 0.1%
Colgate-Palmolive Co.:
3.25%, 03/15/24(a)		250		260,245
3.70%, 08/01/47		750		857,333
Estee Lauder Cos., Inc.:
2.00%, 12/01/24(a)		325		323,679
3.15%, 03/15/27(a)		1,000		1,024,001
2.38%, 12/01/29		130		125,964
4.15%, 03/15/47		250		269,168
3.13%, 12/01/49(a)		685		664,250
Procter & Gamble Co.:
2.30%, 02/06/22		250		255,716
2.15%, 08/11/22(a)		1,000		1,020,697
3.10%, 08/15/23(a)		500		529,107
2.85%, 08/11/27(a)		500		546,272
3.50%, 10/25/47		1,000		1,078,328

35

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Personal Products (continued)
Unilever Capital Corp.:
1.38%, 07/28/21	$	3,000	$	3,003,406
3.13%, 03/22/23(a)		2,000		2,109,717
3.10%, 07/30/25		250		265,735
2.00%, 07/28/26(a)		750		748,041
2.13%, 09/06/29		1,000		1,019,650
				14,101,309
Pharmaceuticals — 1.6%
Abbott Laboratories:
2.55%, 03/15/22(a)		1,000		1,008,852
3.88%, 09/15/25(a)		45		48,634
3.75%, 11/30/26(a)		417		465,373
4.75%, 11/30/36(a)		2,250		2,867,030
5.30%, 05/27/40		500		657,972
4.75%, 04/15/43(a)		250		319,729
4.90%, 11/30/46(a)		1,500		2,047,053
AbbVie, Inc.:
2.30%, 05/14/21		750		752,394
2.15%, 11/19/21(a)(b)		700		699,056
2.90%, 11/06/22		1,250		1,263,624
2.30%, 11/21/22(b)		1,400		1,401,097
2.85%, 05/14/23(a)		1,500		1,522,219
3.75%, 11/14/23(a)		3,000		3,108,331
2.60%, 11/21/24(a)(b)		1,850		1,867,871
3.60%, 05/14/25(a)		1,500		1,574,113
3.20%, 05/14/26		1,435		1,426,565
2.95%, 11/21/26(b)		2,000		2,009,174
3.20%, 11/21/29(b)		1,850		1,857,599
4.50%, 05/14/35(a)		450		510,428
4.30%, 05/14/36		200		215,866
4.05%, 11/21/39(a)(b)		1,895		1,949,214
4.40%, 11/06/42		1,400		1,553,878
4.70%, 05/14/45(a)		1,250		1,403,988
4.45%, 05/14/46(a)		1,250		1,326,662
4.88%, 11/14/48		1,000		1,160,125
4.25%, 11/21/49(a)(b)		3,195		3,394,180
Allergan Finance LLC, 3.25%, 10/01/22		3,150		3,158,447
Allergan Funding SCS:
3.45%, 03/15/22		1,155		1,199,280
3.80%, 03/15/25		750		767,883
4.55%, 03/15/35(a)		630		692,914
4.85%, 06/15/44(a)		1,250		1,549,344
4.75%, 03/15/45		668		719,991
AmerisourceBergen Corp.:
3.45%, 12/15/27		750		752,688
4.25%, 03/01/45		250		254,029
4.30%, 12/15/47(a)		500		519,348
AstraZeneca PLC:
2.38%, 06/12/22		500		503,825
3.38%, 11/16/25		1,700		1,769,423
3.13%, 06/12/27		500		500,344
4.00%, 01/17/29(a)		1,500		1,702,031

Security	Par (000)		Value
Pharmaceuticals (continued)
AstraZeneca PLC (continued):
6.45%, 09/15/37	$	100	$	141,814
4.38%, 11/16/45		950		1,175,387
4.38%, 08/17/48(a)		900		1,107,593
Bristol-Myers Squibb Co.:
2.60%, 05/16/22(b)		2,000		2,043,302
2.00%, 08/01/22(a)		250		251,974
3.25%, 08/15/22(b)		150		155,745
3.55%, 08/15/22(b)		750		790,592
4.00%, 08/15/23(b)		750		785,669
3.88%, 08/15/25(b)		500		572,725
3.20%, 06/15/26(b)		4,000		4,246,372
3.45%, 11/15/27(a)(b)		1,000		1,064,087
3.90%, 02/20/28(b)		1,000		1,111,393
3.40%, 07/26/29(a)(b)		1,500		1,655,509
5.25%, 08/15/43(a)(b)		145		196,952
4.50%, 03/01/44(a)		250		297,104
5.00%, 08/15/45(b)		1,750		2,340,207
4.35%, 11/15/47(b)		500		629,636
4.55%, 02/20/48(b)		1,000		1,266,501
4.25%, 10/26/49(a)(b)		2,500		3,131,390
Cardinal Health, Inc.:
2.62%, 06/15/22		1,000		1,005,336
3.50%, 11/15/24		250		254,886
3.41%, 06/15/27(a)		1,000		1,014,729
4.60%, 03/15/43(a)		50		49,438
4.90%, 09/15/45		250		255,536
4.37%, 06/15/47		500		504,669
CVS Health Corp.:
2.13%, 06/01/21(a)		250		250,267
3.50%, 07/20/22		500		512,939
3.70%, 03/09/23(a)		4,000		4,154,672
4.00%, 12/05/23		500		527,003
2.63%, 08/15/24		1,225		1,242,359
4.10%, 03/25/25(a)		1,500		1,586,749
3.88%, 07/20/25		943		990,626
2.88%, 06/01/26(a)		750		758,105
3.63%, 04/01/27		175		178,021
4.30%, 03/25/28(a)		3,500		3,743,752
3.75%, 04/01/30		345		355,231
4.88%, 07/20/35		1,000		1,141,135
4.78%, 03/25/38(a)		2,500		2,764,352
5.13%, 07/20/45(a)		1,750		2,013,570
5.05%, 03/25/48		4,750		5,427,008
4.25%, 04/01/50		285		295,834
Eli Lilly & Co.:
2.75%, 06/01/25(a)		45		46,498
3.10%, 05/15/27(a)		750		770,985
3.38%, 03/15/29		1,000		1,078,019
3.95%, 05/15/47		500		590,384
3.95%, 03/15/49(a)		750		944,969
4.15%, 03/15/59(a)		500		590,068

36

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Pharmaceuticals (continued)
GlaxoSmithKline Capital PLC:
2.85%, 05/08/22	$	2,650	$	2,720,563
2.88%, 06/01/22(a)		500		511,509
3.38%, 06/01/29		1,000		1,079,183
GlaxoSmithKline Capital, Inc.:
2.80%, 03/18/23(a)		1,500		1,551,005
3.38%, 05/15/23		1,000		1,043,772
3.88%, 05/15/28		1,000		1,123,256
5.38%, 04/15/34		250		312,243
6.38%, 05/15/38		1,100		1,627,140
Johnson & Johnson:
1.65%, 03/01/21(a)		500		501,895
2.45%, 12/05/21		450		460,679
2.25%, 03/03/22		750		777,030
2.05%, 03/01/23(a)		750		766,832
2.45%, 03/01/26(a)		370		395,135
4.38%, 12/05/33		250		321,161
3.55%, 03/01/36(a)		750		847,514
3.63%, 03/03/37		500		562,736
4.50%, 09/01/40		100		125,244
4.50%, 12/05/43(a)		750		1,001,788
3.70%, 03/01/46		500		602,633
3.75%, 03/03/47		1,750		2,139,245
3.50%, 01/15/48(a)		1,250		1,517,738
Mead Johnson Nutrition Co., 4.60%, 06/01/44		250		296,634
Merck & Co., Inc.:
2.35%, 02/10/22(a)		1,500		1,520,609
2.75%, 02/10/25		3,570		3,716,179
3.90%, 03/07/39(a)		500		585,899
4.15%, 05/18/43(a)		750		911,319
3.70%, 02/10/45		1,900		2,247,122
4.00%, 03/07/49(a)		1,000		1,260,450
Mylan NV:
3.15%, 06/15/21		1,000		986,380
3.95%, 06/15/26(a)		250		246,710
5.25%, 06/15/46		500		477,141
Mylan, Inc.:
4.20%, 11/29/23(a)		250		237,150
4.55%, 04/15/28		800		782,488
5.40%, 11/29/43		250		249,255
5.20%, 04/15/48		550		493,139
Novartis Capital Corp.:
2.40%, 05/17/22		500		512,380
3.40%, 05/06/24		650		696,151
3.00%, 11/20/25(a)		1,100		1,166,177
3.10%, 05/17/27(a)		2,500		2,696,452
4.40%, 05/06/44(a)		1,250		1,643,315
4.00%, 11/20/45(a)		250		317,315
Perrigo Finance Unlimited Co.:
3.90%, 12/15/24		250		245,439
4.38%, 03/15/26(a)		250		258,248

Security	Par (000)		Value
Pharmaceuticals (continued)
Pfizer, Inc.:
1.95%, 06/03/21	$	500	$	503,617
2.20%, 12/15/21		3,000		3,008,868
5.80%, 08/12/23		500		561,033
3.40%, 05/15/24		1,000		1,043,625
2.75%, 06/03/26(a)		115		120,529
3.00%, 12/15/26		750		804,909
3.45%, 03/15/29(a)		1,000		1,100,334
4.00%, 12/15/36		500		571,349
3.90%, 03/15/39(a)		500		564,990
7.20%, 03/15/39(a)		2,250		3,604,781
4.30%, 06/15/43		500		577,828
4.40%, 05/15/44(a)		500		611,577
4.13%, 12/15/46(a)		500		616,610
4.20%, 09/15/48(a)		500		618,865
4.00%, 03/15/49		1,000		1,221,779
Sanofi, 3.63%, 06/19/28(a)		2,000		2,216,460
Shire Acquisitions Investments Ireland DAC:
2.88%, 09/23/23		500		503,633
3.20%, 09/23/26		900		910,424
Takeda Pharmaceutical Co. Ltd.:
4.00%, 11/26/21		3,000		3,039,032
4.40%, 11/26/23		1,000		1,052,576
5.00%, 11/26/28		1,000		1,139,970
Wyeth LLC:
6.50%, 02/01/34		500		722,108
5.95%, 04/01/37(a)		250		354,282
Zoetis, Inc.:
3.25%, 02/01/23		1,000		1,019,646
3.90%, 08/20/28(a)		1,000		1,039,227
4.70%, 02/01/43		400		449,746
3.95%, 09/12/47		500		494,207
4.45%, 08/20/48		250		277,764
				176,795,688
Professional Services — 0.0%
IHS Markit Ltd., 4.75%, 08/01/28		300		313,968
Real Estate — 0.1%
CBRE Services, Inc.:
5.25%, 03/15/25(a)		250		269,154
4.88%, 03/01/26		250		260,453
Equifax, Inc.:
2.60%, 12/01/24		1,000		945,172
3.25%, 06/01/26		250		226,028
Equinix, Inc.:
2.63%, 11/18/24(a)		335		319,510
5.88%, 01/15/26(a)		600		612,222
2.90%, 11/18/26		135		123,635
5.38%, 05/15/27(a)		1,100		1,087,790
3.20%, 11/18/29		455		423,105
Highwoods Realty LP:
4.13%, 03/15/28		250		268,569

37

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Real Estate (continued)
Highwoods Realty LP (continued):
3.05%, 02/15/30(a)	$	500	$	451,529
Prologis LP:
3.75%, 11/01/25(a)		45		47,750
2.13%, 04/15/27		30		28,525
2.25%, 04/15/30		240		219,305
4.38%, 09/15/48		100		104,204
3.00%, 04/15/50		95		82,209
Vornado Realty LP, 3.50%, 01/15/25		250		240,931
				5,710,091
Road & Rail — 0.4%
Burlington Northern Santa Fe LLC:
3.45%, 09/15/21		2,000		2,032,209
3.75%, 04/01/24		50		52,826
3.65%, 09/01/25		750		795,426
7.00%, 12/15/25		250		311,974
3.25%, 06/15/27		1,750		1,809,340
5.40%, 06/01/41		50		62,981
4.40%, 03/15/42		150		170,300
4.38%, 09/01/42		250		281,090
4.45%, 03/15/43		200		230,294
5.15%, 09/01/43		250		316,804
4.90%, 04/01/44		500		621,633
4.55%, 09/01/44		250		298,517
4.15%, 04/01/45		500		571,553
3.90%, 08/01/46		2,000		2,201,629
4.13%, 06/15/47		250		288,248
4.05%, 06/15/48(a)		1,000		1,163,648
4.15%, 12/15/48(a)		500		571,947
3.55%, 02/15/50(a)		125		136,549
Canadian National Railway Co.:
2.85%, 12/15/21		1,000		981,578
2.95%, 11/21/24		305		293,467
2.75%, 03/01/26(a)		560		596,698
3.50%, 11/15/42		100		105,851
3.65%, 02/03/48		1,500		1,688,245
Canadian Pacific Railway Co.:
4.45%, 03/15/23		500		520,668
2.90%, 02/01/25		1,000		958,054
7.13%, 10/15/31(a)		250		327,775
4.80%, 09/15/35(a)		250		295,528
5.75%, 01/15/42		25		31,158
4.80%, 08/01/45		1,110		1,298,257
CSX Corp.:
3.35%, 11/01/25(a)		250		263,023
3.80%, 03/01/28		2,500		2,706,392
2.40%, 02/15/30(a)		500		491,951
4.75%, 05/30/42		100		112,215
4.30%, 03/01/48		750		821,951
4.50%, 03/15/49		1,000		1,150,025
3.35%, 09/15/49(a)		215		203,292
3.80%, 04/15/50		50		52,246

Security	Par (000)		Value
Road & Rail (continued)
CSX Corp. (continued):
3.95%, 05/01/50	$	450	$	469,080
4.50%, 08/01/54		250		282,464
4.25%, 11/01/66		750		746,414
4.65%, 03/01/68		500		544,627
Kansas City Southern:
3.13%, 06/01/26		250		247,073
2.88%, 11/15/29		120		115,113
4.70%, 05/01/48		500		548,338
4.20%, 11/15/69(a)		105		96,251
Norfolk Southern Corp.:
3.00%, 04/01/22		1,750		1,755,601
3.85%, 01/15/24		1,000		1,040,888
3.15%, 06/01/27		880		873,554
2.55%, 11/01/29		165		159,595
3.95%, 10/01/42		100		101,830
4.45%, 06/15/45		250		276,991
3.94%, 11/01/47		225		234,566
4.15%, 02/28/48		250		263,788
4.10%, 05/15/49		1,000		1,067,767
3.40%, 11/01/49		335		325,079
4.05%, 08/15/52(a)		1,000		1,073,564
Ryder System, Inc.:
3.40%, 03/01/23(a)		500		504,525
2.50%, 09/01/24		285		271,296
2.90%, 12/01/26		1,160		1,131,988
Union Pacific Corp.:
4.16%, 07/15/22		100		102,828
3.65%, 02/15/24		1,000		1,041,686
3.25%, 08/15/25(a)		250		258,034
2.75%, 03/01/26		1,000		1,006,591
2.15%, 02/05/27		160		156,250
3.95%, 09/10/28		1,000		1,072,542
2.40%, 02/05/30		365		354,554
3.60%, 09/15/37		1,250		1,290,907
4.38%, 09/10/38		2,750		3,049,424
4.30%, 06/15/42		50		54,929
4.05%, 11/15/45		250		264,998
4.05%, 03/01/46		140		147,590
4.50%, 09/10/48(a)		500		566,021
3.25%, 02/05/50		600		596,500
3.80%, 10/01/51		250		273,815
3.95%, 08/15/59(a)		780		825,815
3.84%, 03/20/60(b)		450		469,669
				48,477,887
Semiconductors & Semiconductor Equipment — 0.5%
Altera Corp., 4.10%, 11/15/23		250		272,743
Analog Devices, Inc.:
2.88%, 06/01/23		1,000		1,009,125
3.50%, 12/05/26		750		758,491
Applied Materials, Inc.:
4.30%, 06/15/21		500		515,245

38

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Semiconductors & Semiconductor Equipment (continued)
Applied Materials, Inc. (continued):
3.90%, 10/01/25	$	160	$	168,579
3.30%, 04/01/27		1,000		1,063,886
5.85%, 06/15/41		300		422,373
4.35%, 04/01/47		500		637,671
Broadcom Corp./Broadcom Cayman Finance Ltd.:
3.00%, 01/15/22		1,500		1,483,305
2.65%, 01/15/23(a)		1,500		1,463,240
3.63%, 01/15/24(a)		250		245,570
3.88%, 01/15/27(a)		2,750		2,627,263
3.50%, 01/15/28(a)		500		462,914
Broadcom, Inc.(b):
3.13%, 10/15/22		1,000		990,436
3.63%, 10/15/24		2,000		1,968,107
4.25%, 04/15/26		1,000		983,107
4.75%, 04/15/29(a)		1,000		1,014,353
Intel Corp.:
1.70%, 05/19/21		1,000		1,000,036
2.70%, 12/15/22(a)		2,500		2,614,476
2.88%, 05/11/24(a)		1,000		1,049,058
3.70%, 07/29/25		1,000		1,102,710
2.45%, 11/15/29		500		512,097
4.10%, 05/19/46(a)		2,500		3,015,348
4.10%, 05/11/47(a)		250		303,677
3.73%, 12/08/47(a)		1,399		1,631,562
4.75%, 03/25/50		1,000		1,342,824
KLA Corp.:
4.65%, 11/01/24		305		321,795
4.10%, 03/15/29		500		525,205
3.30%, 03/01/50(a)		1,070		1,002,460
Lam Research Corp.:
3.80%, 03/15/25		230		236,891
4.88%, 03/15/49		1,000		1,289,708
Maxim Integrated Products, Inc., 3.38%, 03/15/23(a)		100		102,042
Microchip Technology, Inc., 4.33%, 06/01/23		2,000		1,993,888
Micron Technology, Inc.:
4.64%, 02/06/24		300		304,725
4.98%, 02/06/26		250		262,020
5.33%, 02/06/29		250		273,043
4.66%, 02/15/30(a)		750		783,319
NVIDIA Corp.:
2.20%, 09/16/21		300		302,237
3.20%, 09/16/26		1,000		1,113,385
2.85%, 04/01/30(a)		360		375,702
3.50%, 04/01/40		210		222,801
3.50%, 04/01/50		405		440,369
3.70%, 04/01/60		145		162,078
NXP BV/NXP Funding LLC/NXP USA, Inc.(b):
3.88%, 06/18/26		320		311,300

Security	Par (000)		Value
Semiconductors & Semiconductor Equipment (continued)
NXP BV/NXP Funding LLC/NXP USA, Inc.(b) (continued):
4.30%, 06/18/29(a)	$	1,000	$	1,024,776
QUALCOMM, Inc.:
3.00%, 05/20/22(a)		1,500		1,530,409
2.60%, 01/30/23		640		654,406
3.45%, 05/20/25		250		261,964
3.25%, 05/20/27		500		525,934
4.65%, 05/20/35(a)		250		315,902
4.80%, 05/20/45(a)		750		979,902
4.30%, 05/20/47(a)		1,500		1,799,954
Seagate HDD Cayman:
4.75%, 06/01/23(a)		168		168,247
4.88%, 06/01/27		500		492,505
5.75%, 12/01/34		650		607,184
Texas Instruments, Inc.:
2.25%, 09/04/29		680		679,321
4.15%, 05/15/48(a)		1,000		1,222,604
Xilinx, Inc., 3.00%, 03/15/21(a)		75		74,975
				49,019,247
Software — 0.6%
Activision Blizzard, Inc., 3.40%, 06/15/27		1,000		1,036,840
Autodesk, Inc.:
3.50%, 06/15/27(a)		2,000		2,056,415
2.85%, 01/15/30		100		97,829
CA, Inc., 4.50%, 08/15/23		170		167,850
Microsoft Corp.:
1.55%, 08/08/21(a)		1,000		1,006,955
2.40%, 02/06/22(a)		2,000		2,055,710
2.38%, 02/12/22(a)		1,000		1,030,039
2.65%, 11/03/22		500		524,029
2.00%, 08/08/23(a)		2,000		2,068,117
3.63%, 12/15/23		1,000		1,092,634
2.88%, 02/06/24		865		920,304
3.13%, 11/03/25(a)		500		547,206
2.40%, 08/08/26		1,485		1,576,457
3.30%, 02/06/27		4,500		4,993,530
3.50%, 02/12/35		1,165		1,370,036
4.20%, 11/03/35		250		311,328
3.45%, 08/08/36(a)		750		835,586
4.10%, 02/06/37(a)		1,250		1,506,775
4.50%, 10/01/40		500		655,523
5.30%, 02/08/41(a)		100		146,122
3.50%, 11/15/42		1,000		1,147,212
3.75%, 05/01/43		150		174,590
3.75%, 02/12/45(a)		500		601,951
4.45%, 11/03/45		1,500		1,972,473
3.70%, 08/08/46(a)		2,500		3,001,096
4.00%, 02/12/55(a)		1,750		2,226,612
4.75%, 11/03/55(a)		250		354,950
3.95%, 08/08/56		250		315,061
4.50%, 02/06/57(a)		1,500		2,065,316

39

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Software (continued)
Microsoft Corp. (continued):
Series 30Y, 4.25%, 02/06/47(a)	$	1,500	$	1,932,947
Oracle Corp.:
2.80%, 07/08/21		1,000		1,014,441
1.90%, 09/15/21		2,000		2,005,893
2.50%, 10/15/22		3,250		3,315,942
2.63%, 02/15/23		2,000		2,053,191
2.40%, 09/15/23(a)		1,000		1,023,973
2.95%, 11/15/24		500		524,042
2.95%, 05/15/25		500		516,766
2.65%, 07/15/26(a)		745		760,341
3.25%, 11/15/27		750		772,592
3.25%, 05/15/30(a)		950		1,007,695
4.30%, 07/08/34(a)		250		288,507
3.90%, 05/15/35		500		540,542
3.85%, 07/15/36(a)		750		788,580
3.80%, 11/15/37		750		772,615
6.13%, 07/08/39(a)		500		674,197
5.38%, 07/15/40		400		534,283
4.50%, 07/08/44		500		576,401
4.13%, 05/15/45		2,250		2,434,532
4.00%, 07/15/46(a)		2,250		2,510,107
4.00%, 11/15/47(a)		1,500		1,645,349
4.38%, 05/15/55(a)		250		302,788
salesforce.com, Inc., 3.25%, 04/11/23		2,500		2,598,484
				64,452,754
Specialty Retail — 0.3%
Advance Auto Parts, Inc., 4.50%, 12/01/23(a)		250		256,887
AutoZone, Inc.:
3.70%, 04/15/22		50		51,282
3.13%, 07/15/23		250		252,000
3.25%, 04/15/25		165		164,455
3.75%, 04/18/29		1,000		1,012,485
Costco Wholesale Corp.(a):
2.25%, 02/15/22		85		86,973
3.00%, 05/18/27		1,500		1,590,714
Dollar Tree, Inc.:
3.70%, 05/15/23(a)		2,500		2,539,989
4.20%, 05/15/28		1,000		997,669
Home Depot, Inc.:
2.00%, 04/01/21		500		500,804
4.40%, 04/01/21		150		152,685
2.63%, 06/01/22(a)		2,750		2,797,858
3.35%, 09/15/25		1,500		1,616,893
2.13%, 09/15/26(a)		500		504,021
2.80%, 09/14/27		500		516,812
3.90%, 12/06/28(a)		440		490,171
2.70%, 04/15/30		300		305,044
5.88%, 12/16/36(a)		100		135,670
5.40%, 09/15/40		500		649,563
4.20%, 04/01/43(a)		750		868,292

Security	Par (000)		Value
Specialty Retail (continued)
Home Depot, Inc. (continued):
4.40%, 03/15/45(a)	$	2,250	$	2,630,542
4.25%, 04/01/46(a)		1,000		1,188,537
3.90%, 06/15/47		500		552,720
4.50%, 12/06/48(a)		1,000		1,242,827
3.13%, 12/15/49(a)		600		591,986
3.35%, 04/15/50		165		172,393
3.50%, 09/15/56		140		141,647
Series 2019-3A, Class A, 2.95%, 06/15/29(a)		590		611,570
Lowe’s Cos., Inc.:
3.80%, 11/15/21(a)		250		254,318
3.12%, 04/15/22(a)		1,600		1,587,795
3.38%, 09/15/25		500		499,560
2.50%, 04/15/26		955		948,237
3.65%, 04/05/29		500		513,027
4.25%, 09/15/44		250		239,470
4.38%, 09/15/45		1,000		1,029,508
3.70%, 04/15/46		250		231,340
4.05%, 05/03/47(a)		1,000		990,071
4.55%, 04/05/49(a)		500		539,397
Macy’s Retail Holdings, Inc.:
3.88%, 01/15/22		168		120,109
3.63%, 06/01/24		97		64,226
4.50%, 12/15/34		26		15,538
QVC, Inc.:
5.45%, 08/15/34		200		146,389
5.95%, 03/15/43		350		237,438
Tapestry, Inc., 3.00%, 07/15/22		1,000		966,976
TJX Cos., Inc., 2.25%, 09/15/26		1,500		1,428,201
				32,434,089
Technology Hardware, Storage & Peripherals — 0.5%
Adobe, Inc.:
1.70%, 02/01/23		160		161,021
1.90%, 02/01/25		160		161,393
3.25%, 02/01/25		70		75,603
2.15%, 02/01/27		1,275		1,290,987
2.30%, 02/01/30		1,200		1,201,611
Apple, Inc.:
1.55%, 08/04/21(a)		1,000		1,006,170
2.50%, 02/09/22(a)		1,000		1,024,702
1.70%, 09/11/22		2,500		2,543,376
2.10%, 09/12/22(a)		500		507,368
2.40%, 01/13/23(a)		1,000		1,027,450
2.85%, 02/23/23		250		260,837
2.40%, 05/03/23(a)		2,000		2,085,101
3.45%, 05/06/24(a)		1,000		1,079,517
2.85%, 05/11/24		2,000		2,125,168
1.80%, 09/11/24		1,635		1,664,574
2.50%, 02/09/25		140		147,680
3.20%, 05/13/25(a)		750		813,472
3.25%, 02/23/26		1,910		2,073,628

40

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Technology Hardware, Storage & Peripherals (continued)
Apple, Inc. (continued):
2.45%, 08/04/26	$	1,410	$	1,476,984
3.35%, 02/09/27		2,000		2,179,909
3.20%, 05/11/27		1,000		1,081,925
2.90%, 09/12/27		1,000		1,067,078
3.00%, 11/13/27		1,000		1,072,396
2.20%, 09/11/29(a)		1,235		1,265,822
4.50%, 02/23/36		250		309,758
3.85%, 05/04/43		1,250		1,485,898
4.45%, 05/06/44		250		318,110
3.45%, 02/09/45(a)		350		396,277
4.38%, 05/13/45		500		635,658
4.65%, 02/23/46		2,980		3,952,358
3.85%, 08/04/46(a)		750		903,482
4.25%, 02/09/47(a)		250		319,899
3.75%, 11/13/47(a)		1,250		1,498,915
2.95%, 09/11/49		1,250		1,329,797
Dell International LLC/EMC Corp.(b):
4.42%, 06/15/21		500		499,890
5.45%, 06/15/23		3,000		3,082,952
4.00%, 07/15/24		1,000		1,008,730
6.02%, 06/15/26		3,090		3,189,133
5.30%, 10/01/29(a)		1,250		1,275,151
8.10%, 07/15/36		500		574,507
8.35%, 07/15/46		850		1,009,166
Hewlett Packard Enterprise Co.:
4.40%, 10/15/22(a)		1,500		1,528,724
2.25%, 04/01/23		1,000		977,197
4.90%, 10/15/25		1,250		1,316,113
6.20%, 10/15/35		500		570,300
6.35%, 10/15/45(a)		750		890,053
HP, Inc.:
4.05%, 09/15/22		1,000		1,045,281
6.00%, 09/15/41(a)		650		699,873
NetApp, Inc., 3.38%, 06/15/21		105		105,264
				56,316,258
Textiles, Apparel & Luxury Goods — 0.0%
NIKE, Inc.:
3.88%, 11/01/45(a)		500		590,325
3.38%, 11/01/46		1,500		1,555,475
				2,145,800
Tobacco — 0.3%
Altria Group, Inc.:
4.75%, 05/05/21		1,000		1,021,562
2.85%, 08/09/22(a)		1,500		1,507,300
4.00%, 01/31/24		250		257,465
4.80%, 02/14/29		3,000		3,122,275
5.80%, 02/14/39		1,000		1,094,721
4.50%, 05/02/43		400		395,247
5.38%, 01/31/44(a)		820		908,530
3.88%, 09/16/46(a)		1,250		1,126,365

Security	Par (000)		Value
Tobacco (continued)
Altria Group, Inc. (continued):
5.95%, 02/14/49	$	1,250	$	1,445,425
BAT Capital Corp.:
2.76%, 08/15/22(a)		3,000		2,948,397
3.22%, 08/15/24		1,250		1,202,868
3.56%, 08/15/27(a)		1,000		941,834
3.46%, 09/06/29(a)		500		462,524
4.39%, 08/15/37(a)		1,250		1,152,263
4.54%, 08/15/47		1,350		1,228,687
4.76%, 09/06/49		750		708,112
Philip Morris International, Inc.:
4.13%, 05/17/21		50		50,965
2.63%, 03/06/23		250		242,989
2.13%, 05/10/23(a)		1,000		985,585
3.25%, 11/10/24		1,000		1,017,415
3.38%, 08/11/25		750		763,569
2.75%, 02/25/26		415		413,273
3.13%, 08/17/27(a)		1,000		1,045,203
6.38%, 05/16/38		1,750		2,220,945
4.50%, 03/20/42		50		55,744
3.88%, 08/21/42(a)		350		351,349
4.13%, 03/04/43		450		443,737
4.88%, 11/15/43		250		292,547
4.25%, 11/10/44(a)		365		403,666
Reynolds American, Inc.:
4.00%, 06/12/22		1,000		1,014,094
4.45%, 06/12/25		1,000		1,005,972
5.70%, 08/15/35		325		348,450
6.15%, 09/15/43		150		162,499
5.85%, 08/15/45(a)		1,250		1,342,687
				31,684,264
Trading Companies & Distributors — 0.0%
GATX Corp.:
3.25%, 09/15/26		750		754,987
4.70%, 04/01/29(a)		1,000		1,080,915
				1,835,902
Water Utilities — 0.0%
American Water Capital Corp.:
3.40%, 03/01/25		250		251,052
2.95%, 09/01/27		500		495,615
3.75%, 09/01/28		1,500		1,559,732
3.45%, 06/01/29(a)		500		532,990
4.30%, 09/01/45		250		256,782
3.75%, 09/01/47		500		500,352
4.15%, 06/01/49		500		551,070
				4,147,593
Wireless Telecommunication Services — 0.2%
America Movil SAB de CV:
3.13%, 07/16/22		3,500		3,535,105
3.63%, 04/22/29		1,400		1,421,175
6.13%, 03/30/40		250		318,125

41

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Wireless Telecommunication Services (continued)
America Movil SAB de CV (continued):
4.38%, 07/16/42	$	850	$	918,000
4.38%, 04/22/49(a)		1,000		1,101,610
American Tower Corp.:
3.50%, 01/31/23		150		150,767
2.95%, 01/15/25		500		503,764
3.95%, 03/15/29(a)		500		519,721
2.90%, 01/15/30(a)		540		520,425
Rogers Communications, Inc.:
3.00%, 03/15/23		650		639,207
3.63%, 12/15/25(a)		565		597,687
2.90%, 11/15/26(a)		1,000		974,373
5.00%, 03/15/44(a)		250		299,735
4.30%, 02/15/48(a)		750		815,862
4.35%, 05/01/49		1,250		1,415,134
3.70%, 11/15/49		400		408,497
Vodafone Group PLC:
3.75%, 01/16/24		1,000		1,041,059
4.13%, 05/30/25		500		532,368
4.38%, 05/30/28		1,350		1,425,780
7.88%, 02/15/30		100		135,641
5.00%, 05/30/38(a)		500		540,019
4.38%, 02/19/43(a)		950		979,808
5.25%, 05/30/48		2,500		3,013,005
4.88%, 06/19/49		500		551,642
4.25%, 09/17/50		1,190		1,223,131
				23,581,640
Total Corporate Bonds — 24.5% (Cost — $2,640,908,260)				2,682,404,905
Foreign Agency Obligations — 3.1%
Canada — 0.3%
Canada Government International Bond, 2.63%, 01/25/22		1,000		1,036,082
Export Development Canada:
2.00%, 05/17/22		4,000		4,127,425
2.50%, 01/24/23		2,000		2,099,746
Province of Alberta Canada:
2.20%, 07/26/22		1,000		1,033,336
1.88%, 11/13/24(a)		1,000		1,026,631
Province of British Columbia Canada:
2.65%, 09/22/21		1,000		1,030,640
2.00%, 10/23/22		750		774,441
Province of Manitoba Canada, 2.13%, 05/04/22		2,000		2,066,368
Province of Ontario Canada:
2.40%, 02/08/22		1,000		1,027,814
2.55%, 04/25/22		4,000		4,129,997
2.25%, 05/18/22		2,000		2,059,856
2.20%, 10/03/22(a)		2,000		2,069,552
1.75%, 01/24/23		2,000		2,050,173

Security	Par (000)		Value
Canada (continued)
Province of Ontario Canada (continued):
2.50%, 04/27/26(a)	$	3,000	$	3,234,015
Province of Quebec Canada:
2.75%, 08/25/21		500		513,371
2.38%, 01/31/22		1,000		1,031,118
2.63%, 02/13/23(a)		250		263,517
2.50%, 04/09/24		2,000		2,126,924
2.50%, 04/20/26		2,750		2,974,539
Series QO, 2.88%, 10/16/24		500		542,055
				35,217,600
Chile — 0.0%
Chile Government International Bond:
3.25%, 09/14/21		500		509,063
3.24%, 02/06/28(a)		1,500		1,584,844
2.55%, 01/27/32		1,000		997,812
3.63%, 10/30/42		350		379,750
3.86%, 06/21/47		750		814,922
3.50%, 01/25/50(a)		500		520,000
				4,806,391
Colombia — 0.1%
Colombia Government International Bond:
4.38%, 07/12/21		750		758,438
2.63%, 03/15/23		250		243,516
4.00%, 02/26/24		2,750		2,768,047
4.50%, 01/28/26(a)		2,250		2,285,859
3.88%, 04/25/27		1,000		984,688
4.50%, 03/15/29(a)		2,000		2,041,875
3.00%, 01/30/30(a)		1,000		904,000
7.38%, 09/18/37		100		125,100
6.13%, 01/18/41		1,000		1,138,125
5.63%, 02/26/44(a)		950		1,036,984
5.00%, 06/15/45		1,400		1,433,687
5.20%, 05/15/49(a)		1,500		1,576,406
				15,296,725
Germany — 0.0%
FMS Wertmanagement:
1.38%, 06/08/21		1,000		1,010,778
2.00%, 08/01/22(a)		1,000		1,035,003
2.75%, 03/06/23		500		530,654
Landwirtschaftliche Rentenbank:
2.25%, 10/01/21		500		512,653
1.75%, 07/27/26		1,000		1,058,380
				4,147,468
Hungary — 0.1%
Hungary Government International Bond:
6.38%, 03/29/21		5,000		5,184,375
5.38%, 02/21/23		500		538,438
5.75%, 11/22/23		500		550,781

42

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Hungary (continued)
Hungary Government International Bond (continued):
5.38%, 03/25/24	$	500	$	552,188
7.63%, 03/29/41(a)		750		1,146,187
				7,971,969
Indonesia — 0.1%
Indonesia Government International Bond:
4.10%, 04/24/28(a)		1,000		1,020,938
4.75%, 02/11/29(a)		1,000		1,080,000
2.85%, 02/14/30		1,000		968,675
4.35%, 01/11/48		1,400		1,426,250
3.50%, 02/14/50(a)		1,000		998,685
				5,494,548
Israel — 0.1%
Israel Government International Bond:
4.00%, 06/30/22(a)		900		939,938
3.15%, 06/30/23		3,000		3,107,812
3.25%, 01/17/28		1,500		1,589,062
4.50%, 01/30/43		1,200		1,309,500
State of Israel, 3.38%, 01/15/50		1,000		972,560
				7,918,872
Italy — 0.1%
Italian Government International Bond:
6.88%, 09/27/23		100		114,599
5.38%, 06/15/33		750		878,980
Republic of Italy Government International Bond:
2.38%, 10/17/24		3,500		3,458,344
2.88%, 10/17/29		500		474,488
4.00%, 10/17/49		1,500		1,404,505
				6,330,916
Japan — 0.1%
Japan Bank for International Cooperation:
1.88%, 04/20/21		2,000		2,021,511
1.50%, 07/21/21		500		504,735
2.00%, 11/04/21(a)		2,000		2,038,276
2.50%, 06/01/22		2,000		2,071,161
2.38%, 07/21/22(a)		1,000		1,035,464
1.63%, 10/17/22		1,000		1,019,241
2.38%, 11/16/22		2,000		2,080,692
3.25%, 07/20/23		1,100		1,183,878
3.38%, 07/31/23(a)		500		540,143
3.38%, 10/31/23		500		542,979
2.50%, 05/23/24		500		528,241
2.38%, 04/20/26(a)		750		808,601
2.25%, 11/04/26		500		538,266
2.88%, 06/01/27		1,000		1,117,155
2.75%, 11/16/27		500		555,985

Security	Par (000)		Value
Japan (continued)
Japan Bank for International Cooperation (continued):
3.25%, 07/20/28	$	2,000	$	2,319,274
2.00%, 10/17/29(a)		1,000		1,063,520
				19,969,122
Mexico — 0.2%
Mexico Government International Bond:
3.63%, 03/15/22(a)		4,750		4,775,234
4.00%, 10/02/23		250		255,000
3.60%, 01/30/25		500		505,313
4.13%, 01/21/26		3,000		3,071,250
4.15%, 03/28/27		1,000		1,018,125
4.50%, 04/22/29		500		510,938
3.25%, 04/16/30		1,000		943,500
6.75%, 09/27/34(a)		150		198,609
6.05%, 01/11/40		2,300		2,720,469
4.75%, 03/08/44(a)		1,700		1,724,969
5.55%, 01/21/45		1,525		1,719,437
4.60%, 01/23/46		1,500		1,484,531
4.35%, 01/15/47		1,750		1,690,391
4.60%, 02/10/48(a)		2,000		2,012,000
4.50%, 01/31/50(a)		1,450		1,442,025
				24,071,791
Panama — 0.1%
Panama Government International Bond:
3.75%, 03/16/25		3,500		3,627,969
3.88%, 03/17/28		2,500		2,680,469
6.70%, 01/26/36		350		447,781
4.50%, 05/15/47(a)		750		823,500
4.50%, 04/16/50(a)		1,250		1,372,500
3.87%, 07/23/60		900		899,437
				9,851,656
Peru — 0.1%
Peruvian Government International Bond:
7.35%, 07/21/25		400		502,828
4.13%, 08/25/27(a)		1,000		1,126,562
2.84%, 06/20/30(a)		1,000		1,044,688
8.75%, 11/21/33(a)		441		699,536
6.55%, 03/14/37(a)		250		355,703
5.63%, 11/18/50		1,400		2,044,000
				5,773,317
Philippines — 0.1%
Philippine Government International Bond:
4.20%, 01/21/24		2,500		2,648,437
3.75%, 01/14/29		3,000		3,315,937
7.75%, 01/14/31		1,500		2,119,688
6.38%, 10/23/34		250		333,750

43

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Philippines (continued)
Philippine Government International Bond (continued):
5.00%, 01/13/37	$	1,000	$	1,190,625
3.95%, 01/20/40		250		275,156
3.70%, 03/01/41		1,100		1,205,188
3.70%, 02/02/42		2,000		2,200,625
				13,289,406
Poland — 0.1%
Poland Government International Bond:
5.13%, 04/21/21		3,000		3,125,625
5.00%, 03/23/22		2,050		2,189,656
3.00%, 03/17/23		200		209,625
4.00%, 01/22/24		250		272,375
3.25%, 04/06/26		250		271,875
				6,069,156
South Korea — 0.1%
Export-Import Bank of Korea:
1.88%, 10/21/21		2,000		2,021,250
2.75%, 01/25/22		1,000		1,026,562
5.00%, 04/11/22		2,000		2,142,500
3.25%, 11/10/25(a)		500		531,465
2.63%, 05/26/26(a)		1,000		1,031,990
3.25%, 08/12/26(a)		500		534,219
Korea Development Bank:
3.38%, 03/12/23		4,000		4,208,480
2.75%, 03/19/23(a)		1,000		1,035,312
Korea International Bond:
4.13%, 06/10/44(a)		250		341,428
3.88%, 09/20/48		1,750		2,384,375
				15,257,581
Supranational — 1.3%
African Development Bank:
3.00%, 09/20/23		5,000		5,403,016
Series GDIF, 2.63%, 03/22/21		500		509,221
Series GDIF, 1.25%, 07/26/21		500		504,599
Asian Development Bank:
1.63%, 03/16/21		750		757,561
2.13%, 11/24/21		1,000		1,024,401
2.00%, 02/16/22(a)		2,000		2,055,266
1.88%, 02/18/22		1,000		1,024,691
1.88%, 07/19/22(a)		2,000		2,058,269
1.75%, 09/13/22		2,500		2,572,125
2.75%, 03/17/23		3,750		3,981,361
2.63%, 01/30/24		3,000		3,234,044
2.00%, 04/24/26(a)		1,000		1,067,084
2.75%, 01/19/28(a)		750		849,077
1.88%, 01/24/30		3,000		3,217,517
Series 5Y, 1.88%, 08/10/22		1,500		1,548,151
European Bank for Reconstruction & Development:
2.75%, 04/26/21		1,000		1,022,483

Security	Par (000)		Value
Supranational (continued)
European Bank for Reconstruction & Development (continued):
2.75%, 03/07/23	$	2,000	$	2,119,320
European Investment Bank:
2.00%, 03/15/21		1,500		1,520,569
2.38%, 05/13/21		4,000		4,081,801
1.63%, 06/15/21		2,000		2,026,045
1.38%, 09/15/21		2,000		2,022,969
2.25%, 03/15/22		1,000		1,032,345
2.63%, 05/20/22		10,000		10,425,717
2.00%, 12/15/22(a)		1,000		1,038,569
2.50%, 03/15/23		2,000		2,112,220
2.88%, 08/15/23		1,500		1,614,058
3.13%, 12/14/23		4,000		4,358,544
3.25%, 01/29/24		3,000		3,298,103
2.63%, 03/15/24		2,000		2,159,649
1.63%, 03/14/25		4,000		4,179,557
2.13%, 04/13/26(a)		1,000		1,083,019
2.38%, 05/24/27(a)		3,500		3,855,734
Inter-American Development Bank:
1.88%, 03/15/21		500		506,495
2.63%, 04/19/21		5,000		5,108,776
1.25%, 09/14/21(a)		1,000		1,010,742
2.13%, 01/18/22(a)		1,000		1,028,393
1.75%, 04/14/22		750		768,123
1.75%, 09/14/22(a)		2,000		2,059,869
2.63%, 01/16/24		5,000		5,374,638
1.75%, 03/14/25(a)		2,000		2,100,479
2.00%, 06/02/26		500		544,087
2.38%, 07/07/27		1,000		1,104,862
2.25%, 06/18/29(a)		4,500		4,954,180
3.20%, 08/07/42		750		956,616
4.38%, 01/24/44		300		466,150
International Bank for Reconstruction & Development:
2.00%, 01/26/22		3,000		3,076,890
2.13%, 07/01/22(a)		3,000		3,097,890
7.63%, 01/19/23		1,000		1,195,158
1.75%, 04/19/23		1,000		1,034,833
3.00%, 09/27/23		4,000		4,317,760
2.50%, 03/19/24(a)		3,000		3,224,618
2.20%, 09/23/24		5,000		5,033,724
4.75%, 02/15/35		500		740,403
Series GDIF, 1.38%, 05/24/21(a)		4,500		4,544,370
Series GDIF, 2.25%, 06/24/21		1,000		1,020,641
Series GDIF, 2.75%, 07/23/21(a)		2,000		2,057,545
Series GDIF, 1.38%, 09/20/21(a)		1,000		1,013,070
Series GDIF, 1.63%, 02/10/22		3,500		3,571,099
Series GDIF, 2.50%, 07/29/25		1,000		1,090,853
Series GDIF, 1.88%, 10/27/26		750		799,108
Series GDIF, 2.50%, 11/22/27		2,000		2,229,616
International Finance Corp.:
1.13%, 07/20/21		2,000		2,014,128

44

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Supranational (continued)
International Finance Corp. (continued):
2.88%, 07/31/23	$	750	$	806,308
Nordic Investment Bank, 1.38%, 10/17/22(a)		2,000		2,039,740
				146,648,249
Sweden — 0.1%
Svensk Exportkredit AB:
2.88%, 05/22/21		2,000		2,052,012
1.63%, 09/12/21		2,000		2,028,580
2.38%, 03/09/22		1,500		1,549,232
1.63%, 11/14/22		500		507,286
2.88%, 03/14/23		1,000		1,064,889
1.75%, 12/12/23		1,000		1,035,510
				8,237,509
Uruguay — 0.1%
Uruguay Government International Bond:
8.00%, 11/18/22		150		163,266
4.50%, 08/14/24(a)		1,250		1,317,187
4.38%, 10/27/27(a)		1,000		1,077,187
4.38%, 01/23/31(a)		1,500		1,627,969
5.10%, 06/18/50		2,250		2,564,297
4.98%, 04/20/55(a)		1,000		1,130,625
				7,880,531
Total Foreign Agency Obligations — 3.1% (Cost — $331,298,696)				344,232,807
Municipal Bonds — 0.7%
Arizona — 0.0%
Salt River Project Agricultural Improvement & Power District, RB, Build America Bonds, Series A, 4.84%, 01/01/41		220		283,930
California — 0.2%
Bay Area Toll Authority, RB, Build America Bonds, San Francisco Toll Bridge:
Series F-2, 6.26%, 04/01/49		750		1,124,385
Series S-1, 6.92%, 04/01/40		530		779,158
Series S-1, 7.04%, 04/01/50		100		164,470
Series S-3, 6.91%, 10/01/50		200		331,830
Bay Area Toll Authority, Refunding RB, San Francisco Bay Area Toll Bridge, 2.57%, 04/01/31		345		348,912
California State University, RB, Series B, 2.98%, 11/01/51		515		500,621

Security	Par (000)		Value
California (continued)
City & County of San Francisco California Public Utilities Commission Water Revenue, RB, Build America Bonds, Sub-Series G, 6.95%, 11/01/50	$	100	$	143,039
City of Los Angeles California Department of Water & Power, RB, Build America Bonds:
5.72%, 07/01/39		200		275,150
6.60%, 07/01/50		90		146,385
Series D, 6.57%, 07/01/45		675		1,049,693
City of San Francisco CA Public Utilities Commission Water Revenue, Refunding RB, Series A, 3.30%, 11/01/39		115		106,929
County of Los Angeles California Metropolitan Transportation Authority, RB, Build America Bonds, 5.74%, 06/01/39		100		132,644
County of Los Angeles Public Works Financing Authority, RB, 7.62%, 08/01/40		100		163,044
County of San Diego California Regional Transportation Commission, RB, Build America Bonds, Series A, 5.91%, 04/01/48		260		325,426
County of San Diego California Water Authority, RB, Build America Bonds, Series B, 6.14%, 05/01/49		315		459,405
County of San Diego Regional Transportation Commission, Refunding RB, Series A, 3.25%, 04/01/48		175		166,091
East Bay Municipal Utility District Water System Revenue, RB, Build America Bonds, 5.87%, 06/01/40		100		138,161
Foothill-Eastern Transportation Corridor Agency, Refunding RB, Toll Road, Series A:
4.09%, 01/15/49		75		74,297
(AGM), 3.92%, 01/15/53		175		191,861
Los Angeles California Community College District, GO, Build America Bonds, 6.75%, 08/01/49		540		854,977
Los Angeles California Unified School District, GO, Build America Bonds:
5.76%, 07/01/29		300		362,541
5.75%, 07/01/34		850		1,084,524
6.76%, 07/01/34		450		611,109
Regents of the University of California Medical Center Pooled Revenue, RB:
Regents, Build America Bonds, Series H, 6.55%, 05/15/48		50		72,367

45

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
California (continued)
Regents of the University of California Medical Center Pooled Revenue, RB (continued):
Series N, 3.26%, 05/15/60	$	365	$	331,438
Series N, 3.71%, 05/15/20		250		258,020
Regents of the University of California Medical Center Pooled Revenue, Refunding RB, Build America Bonds, Series F, 6.58%, 05/15/49		600		851,094
Santa Clara Valley Transportation Authority, RB, Build America Bonds, Series A, 5.88%, 04/01/32		100		130,926
State of California, GO:
Refunding, Bid Group, Series A, 2.50%, 10/01/29		1,250		1,266,400
Build America Bonds, 5.70%, 11/01/21		200		213,202
Build America Bonds, 2.37%, 04/01/22		500		508,955
Build America Bonds, 7.50%, 04/01/34		645		985,502
Build America Bonds, 7.55%, 04/01/39		1,375		2,249,528
Build America Bonds, 7.30%, 10/01/39		600		926,796
Build America Bonds, 7.35%, 11/01/39		800		1,255,296
Build America Bonds, 7.60%, 11/01/40		1,850		3,107,186
State of California, GO, Refunding:
2.80%, 04/01/21		95		96,247
3.38%, 04/01/25		100		107,753
3.50%, 04/01/28		355		389,389
4.50%, 04/01/33		200		229,846
4.60%, 04/01/38		165		180,010
State of California Department of Water Res. Power Supply Revenue, Refunding RB, Series P, 2.00%, 05/01/22		250		252,333
University of California, RB:
Build America Bonds, 5.77%, 05/15/43		190		249,918
Build America Bonds, 5.95%, 05/15/45		500		648,895
General, Series AD, 4.86%, 05/15/12		300		399,288
General, Series AQ, 4.77%, 05/15/15		405		507,242
General, Series BD, 3.35%, 07/01/29		170		184,829
University of California, Refunding RB:
3.06%, 07/01/25		100		107,204

Security	Par (000)		Value
California (continued)
University of California, Refunding RB (continued):
General, Series AJ, 4.60%, 05/15/31	$	150	$	174,930
				25,219,246
Colorado — 0.0%
Regional Transportation District Sales Tax Revenue, RB, Build America Bonds, Series B, 5.84%, 11/01/50		100		156,370
Connecticut — 0.0%
State of Connecticut, GO:
Build America Bonds, Series D, 5.09%, 10/01/30		150		176,015
Series A, 5.85%, 03/15/32		550		676,918
				852,933
District of Columbia — 0.0%
District of Columbia, RB, Build America Bonds, Series E, 5.59%, 12/01/34		200		250,994
District of Columbia Water & Sewer Authority, RB, Series A, 4.81%, 10/01/14		200		254,638
District of Columbia Water & Sewer Authority, Refunding RB, Subordinate Lien, Series A, 3.21%, 10/01/48		160		163,408
Metropolitan Washington Airports Authority Dulles Toll Road Revenue, ARB, Dulles Toll Road Revenue, Build America Bonds, 7.46%, 10/01/46		100		138,030
				807,070
Florida — 0.0%
County of Miami-Dade Florida Aviation Revenue, Refunding RB, Series C, 4.28%, 10/01/41		665		756,764
County of Miami-Dade Florida Water & Sewer System Revenue, Refunding RB, Series C, 3.49%, 10/01/42		70		70,571
State Board of Administration Finance Corp., RB, Series A, 2.64%, 07/01/21		200		201,502
				1,028,837
Georgia — 0.0%
Municipal Electric Authority of Georgia, Refunding RB, Build America Bonds, Series A:
6.64%, 04/01/57		343		453,295
6.66%, 04/01/57		400		526,008
				979,303

46

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Illinois — 0.1%
Chicago O’Hare International Airport, ARB, General Senior Lien, Series C:
4.47%, 01/01/49	$	165	$	194,598
4.57%, 01/01/54		165		199,513
Chicago O’Hare International Airport, Refunding ARB, Build America Bonds, Series B, 6.40%, 01/01/40		250		356,307
Chicago Transit Authority, RB:
Build America Bonds, Series B, 6.20%, 12/01/40		435		542,475
Pension Funding, Series A, 6.90%, 12/01/40		530		710,592
Metropolitan Water Reclamation District of Greater Chicago, GO, Build America Bonds, 5.72%, 12/01/38		340		456,287
State of Illinois, GO, Pension: 5.10%, 06/01/33		4,400		4,379,892
Build America Bonds, 7.35%, 07/01/35		425		475,588
				7,315,252
Massachusetts — 0.0%
Commonwealth of Massachusetts, GO:
Build America Bonds, 5.46%, 12/01/39		500		658,320
Consolidated Loan, Series H, 2.90%, 09/01/49		105		98,324
Refunding Series D, 2.81%, 09/01/43		1,000		921,460
Massachusetts School Building Authority, RB, Build America Bonds, 5.72%, 08/15/39		585		794,143
Massachusetts School Building Authority, Refunding RB, Series B, 3.40%, 10/15/40		125		125,520
				2,597,767
Michigan — 0.0%
Michigan Finance Authority, Refunding RB, Trinity Health Credit Group:
3.08%, 12/01/34		150		164,468
3.38%, 12/01/40		125		124,881
				289,349
Missouri — 0.0%
Health & Educational Facilities Authority of the State of Missouri, RB, Taxable, Washington University, Series A, 3.65%, 08/15/57		440		467,170
Nebraska — 0.0%
University of Nebraska Facilities Corp., Refunding RB, Series A, 3.04%, 10/01/49		200		195,586

Security	Par (000)		Value
Nevada — 0.0%
County of Clark Nevada Department of Aviation, ARB, Build America Bonds, Series C, 6.82%, 07/01/45	$	450	$	597,794
New Jersey — 0.1%
New Jersey EDA, RB, Series A (NPFGC), 7.43%, 02/15/29		1,450		1,736,476
New Jersey State Turnpike Authority, RB, Build America Bonds:
Series A, 7.10%, 01/01/41		750		1,043,715
Series F, 7.41%, 01/01/40		900		1,312,641
New Jersey Transportation Trust Fund Authority, RB, Build America Bonds:
Series B, 6.56%, 12/15/40		100		135,783
Series C, 5.75%, 12/15/28		350		412,108
New Jersey Transportation Trust Fund Authority, Refunding RB, Transportation System:
4.08%, 06/15/39		200		197,402
4.13%, 06/15/42		1,055		1,036,559
Rutgers - The State University of New Jersey, RB, Rutgers University, Series P, 3.92%, 05/01/19		110		119,370
Rutgers The State University of New Jersey, Refunding RB, Series R, 3.27%, 05/01/43		425		422,012
				6,416,066
New York — 0.1%
City of New York NY, Build America Bonds:
GO, 5.52%, 10/01/37		500		614,515
GO, Series F1, 6.27%, 12/01/37		300		394,881
Series A-2, 5.21%, 10/01/31		225		258,934
Metropolitan Transportation Authority, RB, Build America Bonds:
6.67%, 11/15/39		515		686,701
7.34%, 11/15/39		500		711,690
Series E, 6.81%, 11/15/40		400		544,212
New York City Transitional Finance Authority Future Tax Secured Revenue, RB, Build America Bonds:
5.77%, 08/01/36		100		127,293
Future Tax Secured, Sub-Series B-1, 5.57%, 11/01/38		645		862,300
New York City Water & Sewer System, RB, Build America Bonds, 2nd General Resolution, Fiscal 2020, Series DD, 5.95%, 06/15/42		115		166,885

47

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
New York (continued)
New York City Water & Sewer System, Refunding RB, 2nd General Resolution:
Build America Bonds, 5.88%, 06/15/44	$	100	$	145,580
Build America Bonds, Fiscal 2010, Series EE, 6.01%, 06/15/42		600		875,718
Build America Bonds, Fiscal 2011, Series AA, 5.44%, 06/15/43		200		275,256
Build America Bonds, Series GG, 5.72%, 06/15/42		300		425,001
New York State Dormitory Authority, RB, Build America Bonds, 5.60%, 03/15/40		475		642,086
New York State Urban Development Corp., RB, Build America Bonds, 5.77%, 03/15/39		200		223,880
Port Authority of New York & New Jersey, ARB:
192nd Series, 4.81%, 10/15/65		100		117,311
Consolidated, 160th Series, 5.65%, 11/01/40		1,245		1,610,021
Consolidated, 168th Series, 4.93%, 10/01/51		250		298,305
Consolidated, 181th Series, 4.96%, 08/01/46		180		210,422
Port Authority of New York & New Jersey, RB:
159th Series, 6.04%, 12/01/29		200		262,594
182nd Series, 5.31%, 08/01/46		100		108,748
Consolidated Bonds, Series 21, 3.29%, 08/01/69		200		166,034
Port Authority of New York & New Jersey, Refunding ARB, Consolidated,174th Series, 4.46%, 10/01/62		1,300		1,434,628
State of New York Dormitory Authority, Refunding RB:
Series B, 3.14%, 07/01/43		50		50,660
Series F, 3.11%, 02/15/39		350		360,493
State of New York Thruway Authority, Refunding RB, Series M:
2.90%, 01/01/35		500		504,905
3.50%, 01/01/42		160		158,482
State of New York Urban Development Corp., RB, State Personal Income Tax, General Purpose, Series B, 3.90%, 03/15/33		500		559,260
				12,796,795

Security	Par (000)		Value
Ohio — 0.1%
American Municipal Power, Inc., RB, Build America Bonds, Combined Hydroelectric Projects, Series B:
7.83%, 02/15/41	$	650	$	995,514
8.08%, 02/15/50		500		835,010
JobsOhio Beverage System, Refunding RB, Series B:
3.99%, 01/01/29		100		110,015
4.53%, 01/01/35		100		118,033
Ohio State University, RB:
Build America Bonds, Series C, 4.91%, 06/01/40		805		931,804
Series A, 3.80%, 12/01/46		200		197,692
Ohio Turnpike & Infrastructure Commission, Refunding RB, 3.22%, 02/15/48		250		250,167
Ohio Water Development Authority Water Pollution Control Loan Fund, RB, Build America Bonds, Series B-2, 4.88%, 12/01/34		100		113,689
				3,551,924
Oregon — 0.0%
Oregon School Boards Association, GO, Refunding, Taxable Pension, Series B (NPFCG), 5.55%, 06/30/28		375		419,190
State of Oregon, GO:
5.76%, 06/01/23		68		72,963
5.89%, 06/01/27		750		875,205
State of Oregon Department of Transportation, RB, Build America Bonds, Sub-Lien, Series A, 5.83%, 11/15/34		125		166,658
				1,534,016
Pennsylvania — 0.0%
University of Pittsburgh-of the Commonwealth System of Higher Education, RB, Commonwealth System of Higher Education, 3.56%, 09/15/19		175		170,763
South Carolina — 0.0%
South Carolina Public Service Authority, RB, Build America Bonds, Series C, 6.45%, 01/01/50		100		155,657
Tennessee — 0.0%
Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, RB, 4.05%, 07/01/26		350		377,948

48

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Texas — 0.1%
City of San Antonio Texas Electric & Gas Systems Revenue, RB:
4.43%, 02/01/42	$	170	$	197,351
Build America Bonds, 5.72%, 02/01/41		200		271,174
Junior Lien, Build America Bonds, 5.81%, 02/01/41		250		345,625
Dallas Area Rapid Transit, RB, Build America Bonds, Senior Lien, Series B, 5.02%, 12/01/48(a)		560		762,194
Dallas-Fort Worth International Airport, Refunding RB, Series A:
2.99%, 11/01/38		200		205,128
3.14%, 11/01/45		265		261,854
Grand Parkway Transportation Corp., Refunding RB, 3.24%, 10/01/52		590		582,932
North Texas Tollway Authority, RB, Build America Bonds, Series B, 6.72%, 01/01/49		550		876,678
Permanent University Fund - University of Texas System, Refunding RB, 3.38%, 07/01/47		1,040		1,098,749
State of Texas, GO, Build America Bonds, Series A, 5.52%, 04/01/39(a)		1,000		1,357,430
Texas Private Activity Bond Surface Transportation Corp., RB, North Tarrant Express Managed Lanes Project, Series B, 3.92%, 12/31/49		425		402,335
Texas Transportation Commission State Highway Fund, RB, 1st Tier, Build America Bonds, Series B, 5.18%, 04/01/30		600		717,834
				7,079,284
Utah — 0.0%
State of Utah, GO, Series B, 3.54%, 07/01/25		300		319,287
Virginia — 0.0%
University of Virginia, RB, Series C, 4.18%, 09/01/17		60		69,872
University of Virginia, Refunding RB, Series A, 3.23%, 09/01/19		120		101,076
				170,948
Washington — 0.0%
State of Washington, GO, Build America Bonds, 5.14%, 08/01/40		200		275,012
Wisconsin — 0.0%
State of Wisconsin, RB, Series A (AGM), 5.70%, 05/01/26		90		101,803
State of Wisconsin, Refunding RB:
Series A, 3.95%, 05/01/36		600		645,708

Security	Par (000)		Value
Wisconsin (continued)
State of Wisconsin, Refunding RB (continued):
Series C, 3.15%, 05/01/27	$	320	$	327,107
				1,074,618
Total Municipal Bonds — 0.7% (Cost — $71,471,689)				74,712,925
Non-Agency Mortgage-Backed Securities — 1.2%
Commercial Mortgage-Backed Securities — 1.2%
BANK 2019-BNK18, Series 2019-BN18, Class A4, 3.58%, 05/15/62		2,000		2,162,496
Barclays Commercial Mortgage Trust, Series 2017-C1, Class A4, 3.67%, 02/15/50		2,300		2,437,010
Benchmark Mortgage Trust:
Series 2018-B5, Class A4, 4.21%, 07/15/51		3,000		3,353,408
Series 2019-B11, Class A4, 3.28%, 05/15/52		4,000		4,224,579
Series 2019-B13, Class A4, 2.95%, 08/15/57		8,544		8,861,381
Series 2019-B9, Class A5, 4.02%, 03/15/52		3,000		3,321,297
Citigroup Commercial Mortgage Trust:
Series 2013-GC17, Class A4, 4.13%, 11/10/46		750		783,732
Series 2014-GC25, Class A4, 3.64%, 10/10/47		500		517,227
Series 2014-GC25, Class AS, 4.02%, 10/10/47		1,500		1,528,585
Series 2016-GC37, Class A4, 3.31%, 04/10/49		3,500		3,585,067
Series 2016-P5, Class A4, 2.94%, 10/10/49		1,000		1,006,398
Series 2017-P7, Class A4, 3.71%, 04/14/50		2,250		2,379,038
Commercial Mortgage Trust:
Series 2013-CR09, Class A4, 4.22%, 07/10/45(e)		2,700		2,821,607
Series 2013-CR12, Class A4, 4.05%, 10/10/46		1,300		1,373,897
Series 2014-UBS2, Class A5, 3.96%, 03/10/47		500		521,020
Series 2015-PC1, Class A5, 3.90%, 07/10/50		1,500		1,575,622
Series 2016-CR28, Class A4, 3.76%, 02/10/49		750		785,452

49

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Commercial Mortgage-Backed Securities (continued)
CSAIL Commercial Mortgage Securities Trust:
Series 2015-C3, Class A4, 3.72%, 08/15/48	$	1,000	$	1,047,153
Series 2016-C7, Class A5, 3.50%, 11/15/49		4,800		4,928,872
Series 2018-CX11, Class A5, 4.03%, 04/15/51(e)		4,000		4,257,113
DBJPM Mortgage Trust, Series 2016-C3, Class A5, 2.89%, 08/10/49		7,500		7,766,321
GS Mortgage Securities Corp. II, Series 2018-GS10, Class A5, 4.16%, 07/10/51(e)		3,000		3,259,564
GS Mortgage Securities Trust:
Series 2012-GC6, Class A3, 3.48%, 01/10/45		5,280		5,350,163
Series 2012-GCJ9, Class A3, 2.77%, 11/10/45		245		247,853
Series 2015-GC30, Class A4, 3.38%, 05/10/50		600		615,606
Series 2015-GS1, Class A3, 3.73%, 11/10/48		2,300		2,470,603
JPMBB Commercial Mortgage Securities Trust:
Series 2014-C18, Class A5, 4.08%, 02/15/47		250		266,530
Series 2014-C22, Class A4, 3.80%, 09/15/47		300		317,474
Series 2015-C31, Class A3, 3.80%, 08/15/48		2,250		2,400,944
JPMDB Commercial Mortgage Securities Trust, Series 2017-C7, Class A5, 3.41%, 10/15/50		6,000		6,372,430
JPMorgan Chase Commercial Mortgage Securities Trust:
Series 2011-C5, Class A3, 4.17%, 08/15/46		134		136,462
Series 2014-C20, Class A5, 3.80%, 07/15/47		1,400		1,477,863
Series 2017-JP7, Class A5, 3.45%, 09/15/50		3,500		3,713,307
Morgan Stanley Bank of America Merrill Lynch Trust:
Series 2013-C10, Class A5, 4.08%, 07/15/46(e)		3,750		3,951,534
Series 2013-C10, Class AS, 4.08%, 07/15/46(e)		2,500		2,526,185
Series 2013-C11, Class A4, 4.15%, 08/15/46(e)		11,765		12,281,153
Series 2014-C16, Class A4, 3.60%, 06/15/47		4,430		4,554,342
Series 2015-C24, Class A4, 3.73%, 05/15/48		750		795,687

Security	Par (000)		Value
Commercial Mortgage-Backed Securities (continued)
Morgan Stanley Capital I Trust:
Series 2015-UBS8, Class A4, 3.81%, 12/15/48	$	1,181	$	1,239,153
Series 2018-H3, Class A4, 3.91%, 07/15/51		3,000		3,242,136
Series 2019-H6, Class A4, 3.42%, 06/15/52		590		623,126
Series 2019-L3, Class AS, 3.49%, 11/15/52		760		734,954
Wells Fargo Commercial Mortgage Trust:
Series 2013-LC12, Class A4, 4.22%, 07/15/46(e)		200		208,521
Series 2014-LC18, Class ASB, 3.24%, 12/15/47		2,377		2,426,815
Series 2015-C27, Class A5, 3.45%, 02/15/48		1,500		1,542,049
Series 2015-SG1, Class A4, 3.79%, 09/15/48		5,000		5,225,520
Series 2019-C49, Class A5, 4.02%, 03/15/52		3,850		4,158,149
WFRBS Commercial Mortgage Trust:
Series 2012-C7, Class A1, 2.30%, 06/15/45		71		70,371
Series 2012-C7, Class A2, 3.43%, 06/15/45		800		817,193
Series 2013-C11, Class A5, 3.07%, 03/15/45		500		503,541
Total Non-Agency Mortgage-Backed Securities — 1.2% (Cost — $129,109,055)				130,766,503
Preferred Securities — 0.0%
Capital Trusts — 0.0%
Banks — 0.0%
Goldman Sachs Capital I, 6.35%, 02/15/34		250		297,445
Insurance — 0.0%
Allstate Corp., Series B, 5.75%, 08/15/53(c)		1,250		1,112,500
MetLife, Inc., 6.40%, 12/15/66		600		626,162
Prudential Financial, Inc.(c):
5.63%, 06/15/43		100		93,970
5.38%, 05/15/45(a)		500		477,350
				2,309,982
Total Capital Trusts — 0.0%				2,607,427
Total Preferred Securities - 0.0% (Cost — $2,892,672)				2,607,427

50

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
U.S. Government Sponsored Agency Securities — 29.9%
Agency Obligations — 0.9%
Fannie Mae:
1.25%, 08/17/21(a)	$	8,200	$	8,294,051
1.38%, 10/07/21(a)		2,000		2,029,091
2.63%, 01/11/22 - 09/06/24(a)		8,715		9,363,938
1.88%, 04/05/22(a)		5,000		5,148,997
2.38%, 01/19/23(a)		490		516,410
6.25%, 05/15/29		5,350		7,659,701
7.25%, 05/15/30		5,550		8,580,844
6.63%, 11/15/30		149		226,342
Federal Farm Credit Banks Funding Corp., 2.85%, 09/20/21		1,705		1,766,377
Federal Home Loan Bank:
3.00%, 12/09/22		4,910		5,235,460
2.75%, 12/13/24		5,000		5,491,442
3.13%, 06/13/25		9,570		10,742,851
5.50%, 07/15/36		2,100		3,243,372
Freddie Mac:
2.38%, 02/16/21 - 01/13/22(a)		19,715		20,278,049
1.13%, 08/12/21		3,032		3,063,152
6.75%, 03/15/31		2,800		4,355,064
6.25%, 07/15/32		1,300		2,012,306
Tennessee Valley Authority:
5.88%, 04/01/36		2,100		3,208,848
3.50%, 12/15/42		140		162,708
				101,379,003
Commercial Mortgage-Backed Securities — 1.0%
Fannie Mae:
Series 2012-M9, Class A2, 2.48%, 04/25/22		1,084		1,101,490
Series 2014-M13, Class A2, 3.02%, 08/25/24(e)		500		530,879
Series 2014-M2, Class ASV2, 2.78%, 06/25/21(e)		167		167,882
Series 2014-M6, Class A2, 2.68%, 05/25/21(e)		74		74,523
Series 2016-M5, Class A2, 2.47%, 04/25/26		6,110		6,409,275
Series 2016-M6, Class A2, 2.49%, 05/25/26		7,000		7,385,051
Series 2019-M22, Class A2, 2.52%, 08/25/29		5,000		5,336,528
Freddie Mac:
Series K013, Class A2, 3.97%, 01/25/21(e)		500		508,369
Series K017, Class A2, 2.87%, 12/25/21		6,816		6,998,280
Series K026, Class A2, 2.51%, 11/25/22		200		205,828
Series K031, Class A2, 3.30%, 04/25/23(e)		100		106,130

Security	Par (000)		Value
Commercial Mortgage-Backed Securities (continued)
Freddie Mac (continued):
Series K033, Class A2, 3.06%, 07/25/23(e)	$	100	$	105,686
Series K034, Class A2, 3.53%, 07/25/23(e)		3,900		4,179,976
Series K035, Class A2, 3.46%, 08/25/23(e)		2,000		2,139,741
Series K036, Class A2, 3.53%, 10/25/23(e)		1,200		1,290,598
Series K037, Class A2, 3.49%, 01/25/24		2,700		2,910,467
Series K038, Class A1, 2.60%, 10/25/23		91		93,308
Series K041, Class A2, 3.17%, 10/25/24		7,500		8,099,321
Series K052, Class A2, 3.15%, 11/25/25		750		818,017
Series K063, Class A2, 3.43%, 01/25/27(e)		5,000		5,599,519
Series K066, Class A2, 3.12%, 06/25/27		3,500		3,909,718
Series K076, Class A2, 3.90%, 04/25/28		2,000		2,350,082
Series K081, Class A2, 3.90%, 08/25/28(e)		5,000		5,957,152
Series K088, Class A2, 3.69%, 01/25/29		500		587,018
Series K100, Class A2, 2.67%, 09/25/29		10,000		11,010,079
Series K101, Class A2, 2.52%, 10/25/29		5,650		6,169,989
Series K727, Class A2, 2.95%, 07/25/24		5,000		5,283,986
Series K730, Class A2, 3.59%, 01/25/25(e)		9,000		9,807,952
Series K734, Class A2, 3.21%, 02/25/26		5,700		6,206,813
				105,343,657
Mortgage-Backed Securities — 28.0%
Fannie Mae Mortgage-Backed Securities:
(12 mo. LIBOR US + 1.54%), 2.02%, 06/01/43(f)		244		244,241
2.50%, 09/01/28 - 04/15/50(g)		163,451		169,554,578
3.00%, 01/01/27 - 04/15/50(g)		517,215		543,848,055
3.50%, 02/01/26 - 11/01/51(g)		371,875		395,397,397
(12 mo. LIBOR US + 1.83%), 3.77%, 11/01/40(f)		7		6,865
4.00%, 10/01/25 - 02/01/57(g)		338,226		363,992,551
(12 mo. LIBOR US + 1.75%), 4.33%, 08/01/41(f)		7		7,296

51

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
Mortgage-Backed Securities (continued)
Fannie Mae Mortgage-Backed Securities (continued):
(12 mo. LIBOR US + 1.53%), 4.41%, 04/01/43 - 05/01/43(f)	$	102	$	102,435
(12 mo. LIBOR US + 1.70%), 4.45%, 08/01/42(f)		31		31,857
4.50%, 05/01/24 - 04/15/50(g)		113,287		122,805,611
5.00%, 11/01/33 - 04/15/50(g)		37,247		40,481,004
5.50%, 04/01/36 - 04/15/50(g)		27,278		29,988,027
6.00%, 03/01/34 - 04/15/50(g)		10,923		12,235,138
6.50%, 07/01/32		82		93,311
7.00%, 02/01/32		12		11,951
Freddie Mac Mortgage-Backed Securities:
2.50%, 07/01/28 - 10/01/49		26,347		27,369,459
3.00%, 03/01/27 - 02/01/50		178,283		187,592,905
3.50%, 03/01/32 - 02/01/50		218,903		232,372,052
4.00%, 05/01/33 - 02/01/50		80,100		85,742,792
(12 mo. LIBOR US + 1.82%), 4.14%, 09/01/40(f)		22		22,413
(12 mo. LIBOR US + 1.76%), 4.25%, 08/01/41(f)		9		8,739
(12 mo. LIBOR US + 1.50%), 4.37%, 06/01/43(f)		21		20,932
4.50%, 06/01/38 - 01/01/49		32,772		35,471,206
5.00%, 04/01/33 - 04/01/49		6,974		7,570,865
5.50%, 06/01/35 - 01/01/39		132		148,910
6.50%, 06/01/31		20		21,835
8.00%, 12/01/24		57		61,617
Ginnie Mae Mortgage-Backed Securities:
2.50%, 05/20/45 - 04/21/50(g)		7,605		7,980,069
3.00%, 01/20/43 - 04/21/50(g)(h)		218,881		233,479,348
3.50%, 09/20/42 - 04/21/50(g)		284,017		302,058,469
4.00%, 03/15/41 - 04/21/50(g)		147,243		158,060,355
4.50%, 07/15/39 - 04/21/50(g)		77,483		82,666,263
5.00%, 11/15/39 - 04/21/50(g)		26,183		28,173,512
5.50%, 12/15/32 - 04/20/48		494		544,653
6.00%, 03/15/35 - 10/20/38		149		169,855
6.50%, 09/15/36		87		102,231
7.50%, 12/15/23		46		49,476
				3,068,488,273
Total U.S. Government Sponsored Agency Securities — 29.9% (Cost — $3,135,644,178)				3,275,210,933
U.S. Treasury Obligations — 40.6%
U.S. Treasury Bonds:
5.38%, 02/15/31(a)		6,000		8,913,281
4.50%, 02/15/36		7,000		10,735,703
4.75%, 02/15/37		1,450		2,315,582

Security	Par (000)		Value
U.S. Treasury Bonds (continued):
5.00%, 05/15/37(a)	$	9,000	$	14,779,688
4.38%, 02/15/38		6,000		9,358,359
4.50%, 05/15/38		1,000		1,583,789
4.25%, 05/15/39		11,775		18,314,725
4.50%, 08/15/39		1,700		2,724,449
4.38%, 11/15/39		4,800		7,603,875
4.63%, 02/15/40		1,230		2,011,530
4.38%, 05/15/40(a)		13,650		21,707,232
3.88%, 08/15/40		3,860		5,793,468
4.25%, 11/15/40(a)		7,528		11,838,956
4.75%, 02/15/41		11,000		18,387,187
4.38%, 05/15/41		12,610		20,231,169
3.75%, 08/15/41		9,550		14,193,688
3.13%, 11/15/41		10,700		14,618,039
3.13%, 02/15/42(a)		24,350		33,302,430
3.00%, 05/15/42		20,480		27,492,000
2.75%, 08/15/42		18,250		23,563,887
2.75%, 11/15/42(a)		42,500		54,974,414
3.13%, 02/15/43		21,000		28,763,437
2.88%, 05/15/43(a)		24,750		32,665,166
3.63%, 08/15/43		7,500		11,072,461
3.75%, 11/15/43(a)		48,700		73,316,328
3.63%, 02/15/44		11,000		16,292,891
3.38%, 05/15/44		7,600		10,871,563
3.13%, 08/15/44		2,000		2,760,469
3.00%, 11/15/44		6,300		8,541,176
2.50%, 02/15/45(a)		23,500		29,383,262
3.00%, 05/15/45		15,600		21,250,125
2.88%, 08/15/45		18,800		25,190,531
2.50%, 02/15/46(a)		18,600		23,447,625
2.50%, 05/15/46(a)		25,850		32,612,400
2.25%, 08/15/46		26,500		31,988,399
2.88%, 11/15/46		8,500		11,499,902
3.00%, 02/15/47(a)		9,000		12,469,219
3.00%, 05/15/47		18,200		25,228,328
2.75%, 08/15/47		29,500		39,085,195
2.75%, 11/15/47(a)		30,000		39,793,359
3.00%, 02/15/48(a)		8,000		11,106,250
3.13%, 05/15/48(a)		32,500		46,044,629
3.00%, 08/15/48		9,000		12,501,563
3.38%, 11/15/48		14,700		21,810,551
2.88%, 05/15/49		6,500		8,869,199
2.25%, 08/15/49		25,000		30,456,055
2.38%, 11/15/49(a)		27,500		34,261,133
2.00%, 02/15/50(a)		3,000		3,475,430
U.S. Treasury Notes:
1.25%, 03/31/21		9,000		9,100,898
2.25%, 03/31/21		11,500		11,743,477
1.38%, 04/30/21(a)		60,000		60,799,219
2.25%, 04/30/21(a)		50,000		51,160,156
2.63%, 05/15/21(a)		20,000		20,560,156
3.13%, 05/15/21		3,000		3,100,547
2.00%, 05/31/21		5,000		5,107,617

52

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
U.S. Treasury Notes (continued):
2.63%, 06/15/21	$	16,000	$	16,481,875
1.13%, 06/30/21(a)		4,500		4,557,305
2.13%, 06/30/21(a)		20,000		20,500,781
2.63%, 07/15/21(a)		34,000		35,083,750
2.25%, 07/31/21		12,804		13,157,110
2.75%, 08/15/21		20,000		20,707,812
1.13%, 08/31/21(a)		18,000		18,239,063
2.00%, 08/31/21		8,500		8,717,148
2.75%, 09/15/21(a)		50,000		51,843,750
1.13%, 09/30/21		20,000		20,275,000
2.13%, 09/30/21(a)		62,900		64,718,203
1.25%, 10/31/21		8,000		8,133,750
1.50%, 10/31/21(a)		150,000		153,052,734
2.00%, 10/31/21		9,000		9,253,828
2.00%, 11/15/21		13,700		14,104,043
1.75%, 11/30/21(a)		16,000		16,411,875
1.88%, 11/30/21(a)		53,000		54,478,203
2.00%, 12/31/21(a)		12,000		12,373,125
2.13%, 12/31/21		10,000		10,331,641
2.50%, 01/15/22(a)		25,000		26,019,531
1.50%, 01/31/22		3,500		3,581,211
1.88%, 01/31/22(a)		59,000		60,790,742
1.75%, 02/28/22(a)		1,500		1,543,828
1.88%, 02/28/22		5,000		5,158,594
1.75%, 03/31/22(a)		9,100		9,378,688
1.88%, 03/31/22		18,000		18,595,547
2.25%, 04/15/22(a)		20,000		20,824,219
1.75%, 04/30/22(a)		10,000		10,317,969
1.88%, 04/30/22		30,000		31,026,562
1.75%, 05/31/22		3,000		3,098,086
1.75%, 06/30/22		18,000		18,618,750
2.13%, 06/30/22(a)		18,000		18,774,844
1.88%, 07/31/22(a)		40,000		41,529,688
2.00%, 07/31/22(a)		15,000		15,618,164
1.88%, 08/31/22(a)		34,958		36,327,644
1.50%, 09/15/22(a)		20,000		20,617,188
1.75%, 09/30/22		23,000		23,856,211
1.88%, 09/30/22		10,000		10,405,469
1.38%, 10/15/22		20,000		20,564,062
1.88%, 10/31/22(a)		37,000		38,533,476
2.00%, 10/31/22		10,000		10,446,875
7.63%, 11/15/22(a)		3,400		4,056,758
2.00%, 11/30/22(a)		36,000		37,643,906
2.13%, 12/31/22(a)		45,000		47,281,640
1.75%, 01/31/23(a)		20,000		20,829,688
2.00%, 02/15/23		8,000		8,394,375
1.50%, 02/28/23		10,200		10,563,375
1.50%, 03/31/23(a)		31,500		32,641,875
1.63%, 04/30/23(a)		19,000		19,775,586
2.75%, 04/30/23(a)		26,600		28,608,508
1.75%, 05/15/23		1,000		1,045,078
1.63%, 05/31/23		4,000		4,166,562
1.38%, 06/30/23		26,500		27,413,008

Security	Par (000)		Value
U.S. Treasury Notes (continued):
2.63%, 06/30/23(a)	$	58,000	$	62,354,531
1.25%, 07/31/23(a)		4,000		4,124,219
2.75%, 07/31/23(a)		46,000		49,726,719
2.50%, 08/15/23		16,000		17,186,875
6.25%, 08/15/23(a)		2,050		2,461,361
1.38%, 08/31/23(a)		38,000		39,386,406
1.38%, 09/30/23(a)		4,000		4,148,438
2.88%, 09/30/23		6,000		6,536,953
1.63%, 10/31/23(a)		15,000		15,703,711
2.75%, 11/15/23(a)		28,000		30,442,344
2.13%, 11/30/23(a)		39,000		41,570,039
2.25%, 12/31/23(a)		11,000		11,788,906
2.63%, 12/31/23		10,000		10,860,156
2.25%, 01/31/24(a)		40,000		42,932,812
2.50%, 01/31/24(a)		65,000		70,380,274
2.75%, 02/15/24(a)		15,000		16,393,359
2.13%, 02/29/24		13,000		13,904,922
2.13%, 03/31/24		10,000		10,708,984
2.00%, 04/30/24		22,000		23,471,250
2.50%, 05/15/24(a)		22,300		24,263,445
2.00%, 05/31/24		5,700		6,089,648
1.75%, 06/30/24(a)		70,000		74,128,907
2.00%, 06/30/24(a)		40,000		42,767,188
2.38%, 08/15/24		7,500		8,155,371
1.88%, 08/31/24(a)		5,000		5,329,883
1.50%, 09/30/24(a)		75,000		78,808,594
2.13%, 09/30/24(a)		20,000		21,573,438
1.50%, 10/31/24(a)		50,000		52,583,984
2.25%, 10/31/24		5,000		5,426,563
2.25%, 11/15/24(a)		57,000		61,893,985
7.50%, 11/15/24		5,000		6,628,320
2.13%, 11/30/24		15,000		16,215,234
1.75%, 12/31/24(a)		20,000		21,295,312
2.25%, 12/31/24(a)		55,000		59,836,133
2.00%, 02/15/25		21,984		23,688,619
7.63%, 02/15/25		375		505,854
2.75%, 02/28/25		30,000		33,441,797
2.13%, 05/15/25(a)		33,250		36,126,904
2.75%, 06/30/25		28,000		31,384,063
2.88%, 07/31/25(a)		45,000		50,807,812
2.00%, 08/15/25(a)		56,800		61,501,531
6.88%, 08/15/25(a)		8,000		10,727,812
3.00%, 09/30/25(a)		38,000		43,259,141
3.00%, 10/31/25		15,000		17,098,828
2.25%, 11/15/25		16,600		18,241,844
2.63%, 01/31/26		15,000		16,852,734
1.63%, 02/15/26(a)		68,000		72,417,344
6.00%, 02/15/26		7,660		10,128,492
1.63%, 05/15/26(a)		36,350		38,793,685
1.50%, 08/15/26		27,500		29,194,043
6.75%, 08/15/26(a)		7,500		10,448,730
1.63%, 09/30/26		15,000		16,054,688
1.63%, 10/31/26(a)		60,000		64,225,781

53

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Security	Par (000)		Value
U.S. Treasury Notes (continued):
2.00%, 11/15/26	$	15,000	$	16,427,930
1.63%, 11/30/26(a)		30,000		32,130,469
6.63%, 02/15/27(a)		3,500		4,947,578
2.38%, 05/15/27(a)		28,000		31,585,313
2.25%, 08/15/27(a)		31,975		35,875,700
2.25%, 11/15/27(a)		83,510		93,896,556
2.75%, 02/15/28(a)		35,000		40,802,344
2.88%, 05/15/28		14,000		16,506,875
2.88%, 08/15/28(a)		57,500		67,993,750
3.13%, 11/15/28(a)		30,000		36,216,797
5.25%, 11/15/28(a)		9,000		12,504,023
2.63%, 02/15/29(a)		33,884		39,604,572
5.25%, 02/15/29(a)		5,000		6,988,086
1.63%, 08/15/29(a)		62,000		67,291,797
6.13%, 08/15/29(a)		7,500		11,226,270
1.75%, 11/15/29		20,000		21,971,875
Total U.S. Treasury Obligations — 40.6% (Cost — $3,987,128,765)				4,451,188,771
Total Long-Term Investments — 100.5% (Cost — $10,346,884,199)				11,010,507,616
	Shares
Short-Term Securities — 32.7%
BlackRock Cash Funds: Institutional, SL Agency Shares, 1.35% (i)(j)(k)		3,587,260,530		3,586,543,078
BlackRock Cash Funds: Treasury, SL Agency Shares, 0.25% (i)(k)		100,000		100,000
Total Short-Term Securities — 32.7% (Cost — $3,586,067,487)				3,586,643,078
Total Investments Before TBA Sale Commitments — 133.2% (Cost — $13,932,951,686)				14,597,150,694

Security	Par (000)		Value
TBA Sale Commitments(g) — (1.4%)
Mortgage-Backed Securities — (1.4%)
Fannie Mae Mortgage-Backed Securities:
2.50%, 04/20/35 - 04/15/50	$	7,925	$	(8,215,336	)
3.00%, 04/20/35 - 04/15/50		61,620		(64,578,083	)
3.50%, 04/20/35 - 04/15/50		21,016		(22,189,594	)
4.00%, 04/15/50		21,675		(23,114,587	)
4.50%, 04/15/50		3,500		(3,766,191	)
5.00%, 04/15/50		600		(647,227	)
Ginnie Mae Mortgage-Backed Securities :
3.50%, 04/21/50		12,525		(13,201,242	)
4.00%, 04/21/50		9,800		(10,411,074	)
4.50%, 04/21/50		2,650		(2,812,313	)
5.00%, 04/21/50		750		(797,812	)
Total TBA Sale Commitments — (1.4)% (Proceeds — $147,529,399)				(149,733,459	)
Total Investments, Net of TBA Sale Commitments — 131.8% (Cost — $13,785,422,287)				14,447,417,235
Liabilities in Excess of Other Assets — (31.8)%				(3,487,372,820	)
Net Assets — 100.0%			$	10,960,044,415

^(a)  Security, or a portion of the security, is on loan.

^(b)  Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.

^(c)  Variable rate security. Security may be issued at a fixed coupon rate, which converts to a variable rate at a specified date. Rate shown is the rate in effect as of period end.

^(d)  Step-up bond that pays an initial coupon rate for the first period and then a higher coupon rate for the following periods. Rate as of period end.

^(e)  Variable or floating rate security, which interest rate adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets. Rate shown is the rate in effect as of period end.

^(f)  Variable rate security. Rate shown is the rate in effect as of period end.

^(g)  Represents or includes a TBA transaction.

^(h)  All or a portion of the security has been pledged as collateral in connection with outstanding TBA commitments.

⁽ⁱ⁾  Annualized 7-day yield as of period end.

^(j)  All or a portion of the security was purchased with the cash collateral from loaned securities.

^(k)  Investments in issuers considered to be an affiliate/affiliates of the Master Portfolio during the period ended March 31, 2020 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

54

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio (Percentages shown are based on Net Assets)

Affiliated issuer	Shares Held at 12/31/19		Shares Purchased			Shares Sold		Shares Held at 03/31/20		Value at 03/31/20		Income			Net Realized Gain (Loss)(a)			Change in Unrealized Appreciation (Depreciation)
BlackRock Cash Funds: Institutional, SL Agency Shares		2,221,384,022		1,365,876,508	(b)		—		3,587,260,530	$	3,586,543,078	$	5,362,304	(c)	$	(1,189,660	)	$	233,306
BlackRock Cash Funds: Treasury, SL Agency Shares		100,000		—			—		100,000		100,000		329			—			—
										$	3,586,643,078	$	5,362,633		$	(1,189,660	)	$	233,306

^(a)  Includes net capital gain distributions, if applicable.

^(b)  Represents net shares purchased (sold).

^(c)  All or a portion represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other payments to and from borrowers of securities.

For Master Portfolio compliance purposes, the Master Portfolio’s industry classifications refer to one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by the investment advisor. These definitions may not apply for purposes of this report, which may combine such industry sub-classifications for reporting ease.

Portfolio Abbreviations
AGM	Assured Guaranty Municipal Corp.
ARB	Airport Revenue Bonds
CME	Chicago Mercantile Exchange
EDA	Economic Development Authority
GO	General Obligation Bonds
NPFGC	National Public Finance Guarantee Corp.
RB	Revenue Bonds
S&P	Standard & Poor’s

55

Schedule of Investments  (unaudited) (continued) March 31, 2020 U.S. Total Bond Index Master Portfolio

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

• Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Master Portfolio has the ability to access

• Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market–corroborated inputs)

• Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the BlackRock Global Valuation Methodologies Committee’s (the “Global Valuation Committee’s”) assumptions used in determining the fair value of investments

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgement exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for investments is based on the pricing transparency of the investments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Master Portfolio’s policy regarding valuation of investments, refer to the Master Portfolio’s most recent financial statements as contained in its annual report.

The following table summarizes the Master Portfolio’s investments categorized in the disclosure hierarchy:

	Level 1		Level 2			Level 3		Total
Assets:
Investments:
Long-Term Investments(a)	$	—	$	11,010,507,616		$	—	$	11,010,507,616
Short-Term Securities		3,586,643,078		—			—		3,586,643,078
Liabilities:
Investments:
TBA Sale Commitments		—		(149,733,459	)		—		(149,733,459	)
	$	3,586,643,078	$	10,860,774,157		$	—	$	14,447,417,235

^(a)  See above Schedule of Investments for values in each industry, security type, country, state or political sub-division.

56