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Bank of America Securities, Inc. 2.160 549300HN4UKV1E2R3U73 BRTWJ6SR6 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N FREDDIE MAC GOLD 2048-09-01 4.000000 12820851.00 11330000.76 Agency Mortgage-Backed Securities Y Fitch F1+ Moody's NR Standard & Poor's A-1 2019-09-03 2019-09-03 2019-09-03 N N N 0.0216 11000000.00 11000000.00 0.0952 N Y Y N BNP Paribas SA BNP Paribas SA 2.170 R0MUWSFPU8MPRO8K5P83 BRTWJ6R06 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N FMAR 1L1234 G 2036-01-01 4.952000 1304.00 12.56 Agency Mortgage-Backed Securities FNMS 02.500 CLMA2854 2046-12-01 2.500000 345676.00 293879.25 Agency Mortgage-Backed Securities FNMS 04.000 CLBK9534 2048-11-01 4.000000 1350638.00 1436694.07 Agency Mortgage-Backed Securities FNMS 04.000 CLAL9276 2046-09-01 4.000000 2155317.00 1574329.76 Agency Mortgage-Backed Securities GNAR AF AI5284 C 2044-03-20 3.500000 1129.00 42.68 Agency Mortgage-Backed Securities GNAR AF MA5887 M 2049-03-20 4.000000 289917.00 292568.71 Agency Mortgage-Backed Securities GNII SF BM5719 C 2049-02-20 4.500000 248962.00 263350.19 Agency Mortgage-Backed Securities TINT 11/15/34 2034-11-15 0.000000 329846.53 249561.88 U.S. Treasuries (including strips) 1 5/8 NOTE B 26 2026-02-15 1.625000 100.00 101.00 U.S. Treasuries (including strips) 2 3/4 TPRN 42 2042-08-15 0.000000 2300.00 1462.52 U.S. Treasuries (including strips) BILL 07/16/20 2020-07-16 0.000000 100.00 98.44 U.S. Treasuries (including strips) Y Fitch F1 Moody's P-1 Standard & Poor's A-1 2019-09-03 2019-09-03 2019-09-03 N N N 0.0217 4000000.00 4000000.00 0.0346 N Y Y N Wells Fargo Securities LLC Wells Fargo Securities LLC 2.150 VYVVCKR63DVZZN70PB21 BRTWJ6SS4 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N 2 3/8 NOTE V 24 2024-02-29 2.375000 4844200.00 5100101.95 U.S. Treasuries (including strips) Y Fitch NR Moody's NR Standard & Poor's A-1 2019-09-03 2019-09-03 2019-09-03 N N N 0.0215 5000000.00 5000000.00 0.0433 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 1.500 912828X96 254900HROIFWPRGM1V77 US912828X968 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2020-05-15 2020-05-15 2020-05-15 N N N 0.0186 239400.00 239400.00 0.0021 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 1.500 912828XE5 254900HROIFWPRGM1V77 US912828XE52 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2020-05-31 2020-05-31 2020-05-31 N N N 0.0184 154606.45 154606.45 0.0013 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.003 912828Y53 254900HROIFWPRGM1V77 US912828Y537 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2019-09-03 2020-07-31 2020-07-31 N N N 0.0213 304645.32 304645.32 0.0026 N Y Y N BlackRock SeriesFund 2019-09-06 /s/Neal J. Andrews Neal J. Andrews Chief Financial Officer