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IUSB holdings

iShares Core Universal USD Bond ETF

Source: SEC Form N-PORT (opens in a new tab) Holdings as of Made public 25 Sep 2026

Positions

2,000 stored of 18,110 reported, largest first by weight

IUSB holdings as of 31 Jul 2026, largest first
# Holding ISIN CUSIP Weight Value (USD) Type Issuer type Country Currency
1 BlackRock Liquidity Funds BlackRock Liquidity TempCash Funds: Institutional Shares US09248U6432 09248U643 4.361% $1.9B Short-term investment vehicles (cash funds) Registered fund United States USD
2 BlackRock Funds III BlackRock Cash Funds: Treasury, SL Agency Shares US0669224778 066922477 0.800% $343.9M Short-term investment vehicles (cash funds) Registered fund United States USD
3 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0206874 01F020687 0.414% $177.9M Mortgage-backed securities US government-sponsored enterprise United States USD
4 United States of America U.S. Treasury Notes US91282CMD01 91282CMD0 0.375% $161.2M Debt US Treasury United States USD
5 United States of America U.S. Treasury Notes US91282CQQ77 91282CQQ7 0.367% $157.7M Debt US Treasury United States USD
6 United States of America U.S. Treasury Notes US91282CJZ59 91282CJZ5 0.360% $154.8M Debt US Treasury United States USD
7 United States of America U.S. Treasury Notes US91282CMM00 91282CMM0 0.346% $148.9M Debt US Treasury United States USD
8 United States of America U.S. Treasury Notes US91282CNT44 91282CNT4 0.342% $147.0M Debt US Treasury United States USD
9 United States of America U.S. Treasury Notes US91282CKQ32 91282CKQ3 0.341% $146.7M Debt US Treasury United States USD
10 United States of America U.S. Treasury Notes US91282CLW90 91282CLW9 0.338% $145.5M Debt US Treasury United States USD
11 United States of America U.S. Treasury Notes US91282CNC19 91282CNC1 0.331% $142.3M Debt US Treasury United States USD
12 United States of America U.S. Treasury Notes US91282CPZ85 91282CPZ8 0.331% $142.2M Debt US Treasury United States USD
13 United States of America U.S. Treasury Notes US91282CLF67 91282CLF6 0.330% $141.8M Debt US Treasury United States USD
14 United States of America U.S. Treasury Notes US91282CFF32 91282CFF3 0.327% $140.8M Debt US Treasury United States USD
15 United States of America U.S. Treasury Notes US91282CPJ44 91282CPJ4 0.323% $138.8M Debt US Treasury United States USD
16 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0426811 01F042681 0.312% $134.3M Mortgage-backed securities US government-sponsored enterprise United States USD
17 United States of America U.S. Treasury Notes US91282CGQ87 91282CGQ8 0.307% $132.0M Debt US Treasury United States USD
18 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0506844 01F050684 0.299% $128.7M Mortgage-backed securities US government-sponsored enterprise United States USD
19 United States of America U.S. Treasury Notes US91282CNH06 91282CNH0 0.296% $127.1M Debt US Treasury United States USD
20 United States of America U.S. Treasury Notes US91282CQS34 91282CQS3 0.296% $127.1M Debt US Treasury United States USD
21 United States of America U.S. Treasury Notes US91282CNM90 91282CNM9 0.289% $124.5M Debt US Treasury United States USD
22 United States of America U.S. Treasury Notes US91282CCS89 91282CCS8 0.288% $124.0M Debt US Treasury United States USD
23 United States of America U.S. Treasury Notes US91282CPD73 91282CPD7 0.288% $123.9M Debt US Treasury United States USD
24 United States of America U.S. Treasury Notes US91282CJJ18 91282CJJ1 0.288% $123.7M Debt US Treasury United States USD
25 United States of America U.S. Treasury Notes US91282CHA27 91282CHA2 0.287% $123.6M Debt US Treasury United States USD
26 United States of America U.S. Treasury Notes US91282CPA35 91282CPA3 0.279% $119.9M Debt US Treasury United States USD
27 United States of America U.S. Treasury Notes US91282CQG95 91282CQG9 0.277% $119.1M Debt US Treasury United States USD
28 United States of America U.S. Treasury Notes US91282CHT18 91282CHT1 0.272% $116.9M Debt US Treasury United States USD
29 United States of America U.S. Treasury Notes US91282CPR69 91282CPR6 0.267% $114.8M Debt US Treasury United States USD
30 United States of America U.S. Treasury Notes US91282CND91 91282CND9 0.266% $114.5M Debt US Treasury United States USD
31 United States of America U.S. Treasury Notes US91282CMW81 91282CMW8 0.265% $114.0M Debt US Treasury United States USD
32 United States of America U.S. Treasury Notes US91282CFV81 91282CFV8 0.264% $113.3M Debt US Treasury United States USD
33 United States of America U.S. Treasury Notes US91282CBL46 91282CBL4 0.263% $113.2M Debt US Treasury United States USD
34 United States of America U.S. Treasury Notes US91282CEP23 91282CEP2 0.261% $112.2M Debt US Treasury United States USD
35 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418DPC01 31418DPC0 0.257% $110.4M Mortgage-backed securities US government-sponsored enterprise United States USD
36 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0204895 01F020489 0.256% $110.0M Mortgage-backed securities US government-sponsored enterprise United States USD
37 United States of America U.S. Treasury Notes US91282CPN55 91282CPN5 0.250% $107.5M Debt US Treasury United States USD
38 United States of America U.S. Treasury Notes US91282CMZ13 91282CMZ1 0.248% $106.6M Debt US Treasury United States USD
39 United States of America U.S. Treasury Notes US91282CCR07 91282CCR0 0.244% $104.7M Debt US Treasury United States USD
40 United States of America U.S. Treasury Notes US91282CMU26 91282CMU2 0.241% $103.6M Debt US Treasury United States USD
41 United States of America U.S. Treasury Notes US91282CQD64 91282CQD6 0.239% $102.8M Debt US Treasury United States USD
42 United States of America U.S. Treasury Notes US91282CNX55 91282CNX5 0.238% $102.5M Debt US Treasury United States USD
43 United States of America U.S. Treasury Notes US91282CPW54 91282CPW5 0.238% $102.3M Debt US Treasury United States USD
44 United States of America U.S. Treasury Notes US91282CDJ71 91282CDJ7 0.235% $101.2M Debt US Treasury United States USD
45 United States of America U.S. Treasury Notes US91282CCH25 91282CCH2 0.229% $98.7M Debt US Treasury United States USD
46 United States of America U.S. Treasury Notes US91282CNY39 91282CNY3 0.229% $98.6M Debt US Treasury United States USD
47 United States of America U.S. Treasury Notes US91282CQK08 91282CQK0 0.229% $98.6M Debt US Treasury United States USD
48 United States of America U.S. Treasury Notes US91282CQE48 91282CQE4 0.229% $98.6M Debt US Treasury United States USD
49 United States of America U.S. Treasury Notes US91282CCE93 91282CCE9 0.228% $97.8M Debt US Treasury United States USD
50 United States of America U.S. Treasury Notes US91282CGH88 91282CGH8 0.226% $97.0M Debt US Treasury United States USD
51 United States of America U.S. Treasury Notes US91282CMG32 91282CMG3 0.224% $96.3M Debt US Treasury United States USD
52 United States of America U.S. Treasury Notes US91282CNG23 91282CNG2 0.221% $94.9M Debt US Treasury United States USD
53 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0226831 01F022683 0.220% $94.7M Mortgage-backed securities US government-sponsored enterprise United States USD
54 United States of America U.S. Treasury Notes US91282CPK17 91282CPK1 0.220% $94.6M Debt US Treasury United States USD
55 United States of America U.S. Treasury Notes US91282CMA61 91282CMA6 0.217% $93.3M Debt US Treasury United States USD
56 United States of America U.S. Treasury Notes US91282CMK44 91282CMK4 0.215% $92.6M Debt US Treasury United States USD
57 United States of America U.S. Treasury Notes US91282CHC82 91282CHC8 0.214% $91.9M Debt US Treasury United States USD
58 United States of America U.S. Treasury Notes US91282CGM73 91282CGM7 0.214% $91.9M Debt US Treasury United States USD
59 United States of America U.S. Treasury Notes US91282CNV99 91282CNV9 0.214% $91.8M Debt US Treasury United States USD
60 United States of America U.S. Treasury Notes US91282CPT26 91282CPT2 0.213% $91.8M Debt US Treasury United States USD
61 United States of America U.S. Treasury Notes US91282CNU17 91282CNU1 0.213% $91.7M Debt US Treasury United States USD
62 United States of America U.S. Treasury Notes US91282CLM19 91282CLM1 0.213% $91.6M Debt US Treasury United States USD
63 United States of America U.S. Treasury Notes US91282CQR50 91282CQR5 0.212% $91.3M Debt US Treasury United States USD
64 United States of America U.S. Treasury Notes US91282CDY49 91282CDY4 0.211% $90.9M Debt US Treasury United States USD
65 United States of America U.S. Treasury Notes US91282CJN20 91282CJN2 0.210% $90.5M Debt US Treasury United States USD
66 United States of America U.S. Treasury Notes US91282CKX82 91282CKX8 0.204% $87.9M Debt US Treasury United States USD
67 United States of America U.S. Treasury Notes US91282CLG41 91282CLG4 0.202% $87.0M Debt US Treasury United States USD
68 United States of America U.S. Treasury Notes US91282CCB54 91282CCB5 0.199% $85.7M Debt US Treasury United States USD
69 United States of America U.S. Treasury Notes US91282CQY02 91282CQY0 0.198% $85.3M Debt US Treasury United States USD
70 United States of America U.S. Treasury Notes US91282CPB18 91282CPB1 0.198% $85.0M Debt US Treasury United States USD
71 United States of America U.S. Treasury Notes US91282CFL00 91282CFL0 0.197% $84.8M Debt US Treasury United States USD
72 United States of America U.S. Treasury Notes US91282CMB45 91282CMB4 0.192% $82.4M Debt US Treasury United States USD
73 Government National Mortgage Association US21H0526861 21H052686 0.191% $82.3M Mortgage-backed securities US government agency United States USD
74 United States of America U.S. Treasury Notes US91282CDW82 91282CDW8 0.190% $81.8M Debt US Treasury United States USD
75 United States of America U.S. Treasury Notes US91282CKT70 91282CKT7 0.187% $80.4M Debt US Treasury United States USD
76 United States of America U.S. Treasury Notes US91282CGJ45 91282CGJ4 0.187% $80.4M Debt US Treasury United States USD
77 United States of America U.S. Treasury Notes US91282CQU89 91282CQU8 0.186% $80.0M Debt US Treasury United States USD
78 United States of America U.S. Treasury Notes US91282CHK09 91282CHK0 0.186% $79.8M Debt US Treasury United States USD
79 United States of America U.S. Treasury Notes US91282CLD10 91282CLD1 0.185% $79.7M Debt US Treasury United States USD
80 United States of America U.S. Treasury Notes US91282CCV19 91282CCV1 0.185% $79.5M Debt US Treasury United States USD
81 United States of America U.S. Treasury Notes US91282CNK35 91282CNK3 0.184% $78.9M Debt US Treasury United States USD
82 United States of America U.S. Treasury Notes US91282CLX73 91282CLX7 0.183% $78.7M Debt US Treasury United States USD
83 United States of America U.S. Treasury Notes US91282CLR06 91282CLR0 0.183% $78.6M Debt US Treasury United States USD
84 United States of America U.S. Treasury Notes US91282CHE49 91282CHE4 0.180% $77.5M Debt US Treasury United States USD
85 United States of America U.S. Treasury Notes US91282CEB37 91282CEB3 0.179% $77.0M Debt US Treasury United States USD
86 Government National Mortgage Association US36179V7D62 36179V7D6 0.178% $76.5M Mortgage-backed securities US government agency United States USD
87 Government National Mortgage Association US21H0506806 21H050680 0.178% $76.5M Mortgage-backed securities US government agency United States USD
88 United States of America U.S. Treasury Notes US91282CHX20 91282CHX2 0.177% $76.2M Debt US Treasury United States USD
89 United States of America U.S. Treasury Notes US91282CNW72 91282CNW7 0.176% $75.6M Debt US Treasury United States USD
90 United States of America U.S. Treasury Notes US91282CEM91 91282CEM9 0.176% $75.5M Debt US Treasury United States USD
91 United States of America U.S. Treasury Notes US91282CPC90 91282CPC9 0.175% $75.4M Debt US Treasury United States USD
92 United States of America U.S. Treasury Notes US91282CEV90 91282CEV9 0.174% $74.7M Debt US Treasury United States USD
93 United States of America U.S. Treasury Notes US91282CLN91 91282CLN9 0.172% $73.8M Debt US Treasury United States USD
94 United States of America U.S. Treasury Notes US91282CHQ78 91282CHQ7 0.172% $73.8M Debt US Treasury United States USD
95 United States of America U.S. Treasury Notes US91282CKP58 91282CKP5 0.170% $73.2M Debt US Treasury United States USD
96 United States of America U.S. Treasury Notes US91282CPE56 91282CPE5 0.170% $73.2M Debt US Treasury United States USD
97 United States of America U.S. Treasury Bonds US912810TL26 912810TL2 0.170% $73.0M Debt US Treasury United States USD
98 United States of America U.S. Treasury Bonds US912810UK24 912810UK2 0.169% $72.6M Debt US Treasury United States USD
99 United States of America U.S. Treasury Notes US91282CQA26 91282CQA2 0.167% $71.9M Debt US Treasury United States USD
100 United States of America U.S. Treasury Notes US91282CLC37 91282CLC3 0.167% $71.8M Debt US Treasury United States USD
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