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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
201 United States of America U.S. Treasury Notes US91282CGT27 91282CGT2 0.108% $46.5M Debt US Treasury United States USD
202 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3142GWFN47 3142GWFN4 0.108% $46.4M Mortgage-backed securities US government-sponsored enterprise United States USD
203 United States of America U.S. Treasury Notes US9128284V99 9128284V9 0.108% $46.4M Debt US Treasury United States USD
204 United States of America U.S. Treasury Notes US91282CNZ04 91282CNZ0 0.107% $46.2M Debt US Treasury United States USD
205 United States of America U.S. Treasury Notes US91282CNA52 91282CNA5 0.107% $45.8M Debt US Treasury United States USD
206 United States of America U.S. Treasury Notes US9128282R06 9128282R0 0.106% $45.7M Debt US Treasury United States USD
207 United States of America U.S. Treasury Notes US91282CGP05 91282CGP0 0.105% $45.0M Debt US Treasury United States USD
208 United States of America U.S. Treasury Notes US91282CNR87 91282CNR8 0.104% $44.6M Debt US Treasury United States USD
209 United States of America U.S. Treasury Bonds US912810SW99 912810SW9 0.104% $44.6M Debt US Treasury United States USD
210 United States of America U.S. Treasury Notes US91282CPF22 91282CPF2 0.103% $44.4M Debt US Treasury United States USD
211 United States of America U.S. Treasury Notes US91282CFY21 91282CFY2 0.102% $43.9M Debt US Treasury United States USD
212 United States of America U.S. Treasury Notes US91282CJG78 91282CJG7 0.102% $43.8M Debt US Treasury United States USD
213 United States of America U.S. Treasury Bonds US912810SU34 912810SU3 0.101% $43.5M Debt US Treasury United States USD
214 United States of America U.S. Treasury Notes US91282CHW47 91282CHW4 0.101% $43.4M Debt US Treasury United States USD
215 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0406854 01F040685 0.101% $43.2M Mortgage-backed securities US government-sponsored enterprise United States USD
216 United States of America U.S. Treasury Notes US91282CKN01 91282CKN0 0.100% $43.0M Debt US Treasury United States USD
217 United States of America U.S. Treasury Notes US91282CLJ89 91282CLJ8 0.099% $42.6M Debt US Treasury United States USD
218 United States of America U.S. Treasury Notes US91282CHZ77 91282CHZ7 0.099% $42.5M Debt US Treasury United States USD
219 United States of America U.S. Treasury Bonds US912810TQ13 912810TQ1 0.098% $42.3M Debt US Treasury United States USD
220 United States of America U.S. Treasury Bonds US912810TS78 912810TS7 0.098% $42.3M Debt US Treasury United States USD
221 United States of America U.S. Treasury Notes US91282CLZ22 91282CLZ2 0.098% $42.2M Debt US Treasury United States USD
222 United States of America U.S. Treasury Notes US91282CJQ50 91282CJQ5 0.097% $41.9M Debt US Treasury United States USD
223 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0606834 01F060683 0.097% $41.9M Mortgage-backed securities US government-sponsored enterprise United States USD
224 United States of America U.S. Treasury Notes US91282CKF76 91282CKF7 0.097% $41.7M Debt US Treasury United States USD
225 United States of America U.S. Treasury Notes US91282CBB63 91282CBB6 0.096% $41.3M Debt US Treasury United States USD
226 United States of America U.S. Treasury Notes US91282CPQ86 91282CPQ8 0.096% $41.1M Debt US Treasury United States USD
227 United States of America U.S. Treasury Notes US91282CHR51 91282CHR5 0.095% $41.0M Debt US Treasury United States USD
228 United States of America U.S. Treasury Notes US91282CQL80 91282CQL8 0.095% $40.9M Debt US Treasury United States USD
229 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0326821 01F032682 0.095% $40.9M Mortgage-backed securities US government-sponsored enterprise United States USD
230 United States of America U.S. Treasury Notes US91282CNF40 91282CNF4 0.094% $40.6M Debt US Treasury United States USD
231 United States of America U.S. Treasury Notes US91282CFZ95 91282CFZ9 0.093% $39.9M Debt US Treasury United States USD
232 Government National Mortgage Association US36179WLP13 36179WLP1 0.092% $39.8M Mortgage-backed securities US government agency United States USD
233 United States of America U.S. Treasury Notes US91282CHJ36 91282CHJ3 0.091% $39.0M Debt US Treasury United States USD
234 United States of America U.S. Treasury Bonds US912810UV88 912810UV8 0.089% $38.2M Debt US Treasury United States USD
235 United States of America U.S. Treasury Notes US91282CMT52 91282CMT5 0.088% $37.6M Debt US Treasury United States USD
236 United States of America U.S. Treasury Notes US91282CGC91 91282CGC9 0.088% $37.6M Debt US Treasury United States USD
237 United States of America U.S. Treasury Notes US91282CFB28 91282CFB2 0.087% $37.6M Debt US Treasury United States USD
238 United States of America U.S. Treasury Notes US91282CHF14 91282CHF1 0.087% $37.2M Debt US Treasury United States USD
239 United States of America U.S. Treasury Notes US91282CAY75 91282CAY7 0.085% $36.7M Debt US Treasury United States USD
240 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418EE308 31418EE30 0.085% $36.7M Mortgage-backed securities US government-sponsored enterprise United States USD
241 United States of America U.S. Treasury Bonds US912810SE91 912810SE9 0.085% $36.7M Debt US Treasury United States USD
242 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3132DM5R23 3132DM5R2 0.085% $36.5M Mortgage-backed securities US government-sponsored enterprise United States USD
243 United States of America U.S. Treasury Notes US91282CGZ86 91282CGZ8 0.085% $36.5M Debt US Treasury United States USD
244 United States of America U.S. Treasury Notes US9128286T26 9128286T2 0.083% $35.8M Debt US Treasury United States USD
245 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3133KNGL10 3133KNGL1 0.083% $35.8M Mortgage-backed securities US government-sponsored enterprise United States USD
246 Government National Mortgage Association US21H0306827 21H030682 0.083% $35.7M Mortgage-backed securities US government agency United States USD
247 United States of America U.S. Treasury Notes US91282CFM82 91282CFM8 0.082% $35.2M Debt US Treasury United States USD
248 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418DXK35 31418DXK3 0.082% $35.1M Mortgage-backed securities US government-sponsored enterprise United States USD
249 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3132DWDC47 3132DWDC4 0.081% $34.9M Mortgage-backed securities US government-sponsored enterprise United States USD
250 United States of America U.S. Treasury Notes US91282CJX02 91282CJX0 0.081% $34.8M Debt US Treasury United States USD
251 United States of America U.S. Treasury Notes US91282CPM72 91282CPM7 0.081% $34.8M Debt US Treasury United States USD
252 United States of America U.S. Treasury Notes US91282CAE12 91282CAE1 0.080% $34.5M Debt US Treasury United States USD
253 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0306864 01F030686 0.080% $34.4M Mortgage-backed securities US government-sponsored enterprise United States USD
254 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3142J6DQ38 3142J6DQ3 0.079% $34.1M Mortgage-backed securities US government-sponsored enterprise United States USD
255 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418ECQ17 31418ECQ1 0.079% $34.0M Mortgage-backed securities US government-sponsored enterprise United States USD
256 Government National Mortgage Association US36179YFL39 36179YFL3 0.079% $33.8M Mortgage-backed securities US government agency United States USD
257 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US01F0224851 01F022485 0.078% $33.4M Mortgage-backed securities US government-sponsored enterprise United States USD
258 United States of America U.S. Treasury Bonds US912810SS87 912810SS8 0.077% $33.0M Debt US Treasury United States USD
259 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140W2SM44 3140W2SM4 0.077% $33.0M Mortgage-backed securities US government-sponsored enterprise United States USD
260 United States of America U.S. Treasury Notes US91282CFH97 91282CFH9 0.076% $32.8M Debt US Treasury United States USD
261 Government National Mortgage Association US3618N5A332 3618N5A33 0.075% $32.4M Mortgage-backed securities US government agency United States USD
262 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3142GVZB06 3142GVZB0 0.075% $32.1M Mortgage-backed securities US government-sponsored enterprise United States USD
263 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418D3G50 31418D3G5 0.074% $31.9M Mortgage-backed securities US government-sponsored enterprise United States USD
264 Government National Mortgage Association US36179WTX64 36179WTX6 0.074% $31.8M Mortgage-backed securities US government agency United States USD
265 Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities Short position US01F0506844 01F050684 -0.073% -$31.3M Mortgage-backed securities US government-sponsored enterprise United States USD
266 United States of America U.S. Treasury Notes US91282CQW46 91282CQW4 0.073% $31.3M Debt US Treasury United States USD
267 Government National Mortgage Association US21H0406817 21H040681 0.072% $31.1M Mortgage-backed securities US government agency United States USD
268 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140XTDK48 3140XTDK4 0.072% $31.0M Mortgage-backed securities US government-sponsored enterprise United States USD
269 United States of America U.S. Treasury Notes US91282CFT36 91282CFT3 0.072% $31.0M Debt US Treasury United States USD
270 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140QVG575 3140QVG57 0.072% $31.0M Mortgage-backed securities US government-sponsored enterprise United States USD
271 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418D7F32 31418D7F3 0.072% $30.9M Mortgage-backed securities US government-sponsored enterprise United States USD
272 United States of America U.S. Treasury Notes US91282CFU09 91282CFU0 0.072% $30.9M Debt US Treasury United States USD
273 Government National Mortgage Association US3618N56J39 3618N56J3 0.071% $30.6M Mortgage-backed securities US government agency United States USD
274 Government National Mortgage Association US3618N6FL65 3618N6FL6 0.071% $30.4M Mortgage-backed securities US government agency United States USD
275 United States of America U.S. Treasury Notes US9128283F58 9128283F5 0.070% $30.0M Debt US Treasury United States USD
276 United States of America U.S. Treasury Notes US91282CJM47 91282CJM4 0.069% $29.7M Debt US Treasury United States USD
277 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418FE297 31418FE29 0.069% $29.5M Mortgage-backed securities US government-sponsored enterprise United States USD
278 United States of America U.S. Treasury Bonds US912810RK60 912810RK6 0.068% $29.3M Debt US Treasury United States USD
279 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140W6D660 3140W6D66 0.068% $29.2M Mortgage-backed securities US government-sponsored enterprise United States USD
280 United States of America U.S. Treasury Bonds US912810SL35 912810SL3 0.068% $29.2M Debt US Treasury United States USD
281 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418D6B37 31418D6B3 0.067% $28.7M Mortgage-backed securities US government-sponsored enterprise United States USD
282 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3133USKU40 3133USKU4 0.066% $28.5M Mortgage-backed securities US government-sponsored enterprise United States USD
283 United States of America U.S. Treasury Bonds US912810SH23 912810SH2 0.066% $28.4M Debt US Treasury United States USD
284 United States of America U.S. Treasury Notes US91282CAL54 91282CAL5 0.066% $28.2M Debt US Treasury United States USD
285 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3132E03F76 3132E03F7 0.066% $28.2M Mortgage-backed securities US government-sponsored enterprise United States USD
286 Government National Mortgage Association US36179WY939 36179WY93 0.066% $28.2M Mortgage-backed securities US government agency United States USD
287 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418DZX38 31418DZX3 0.065% $28.1M Mortgage-backed securities US government-sponsored enterprise United States USD
288 United States of America U.S. Treasury Notes US91282CKC46 91282CKC4 0.065% $27.8M Debt US Treasury United States USD
289 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140W5DV39 3140W5DV3 0.064% $27.6M Mortgage-backed securities US government-sponsored enterprise United States USD
290 Federal National Mortgage Association Uniform Mortgage-Backed Securities US31418D4X74 31418D4X7 0.064% $27.5M Mortgage-backed securities US government-sponsored enterprise United States USD
291 Government National Mortgage Association US36179WQB71 36179WQB7 0.064% $27.5M Mortgage-backed securities US government agency United States USD
292 United States of America U.S. Treasury Bonds US912810ST60 912810ST6 0.062% $26.6M Debt US Treasury United States USD
293 Government National Mortgage Association US36179WP937 36179WP93 0.062% $26.6M Mortgage-backed securities US government agency United States USD
294 Government National Mortgage Association US36179WR263 36179WR26 0.061% $26.1M Mortgage-backed securities US government agency United States USD
295 Government National Mortgage Association US3618N5JA81 3618N5JA8 0.061% $26.0M Mortgage-backed securities US government agency United States USD
296 Federal National Mortgage Association Uniform Mortgage-Backed Securities US3140MHT410 3140MHT41 0.059% $25.5M Mortgage-backed securities US government-sponsored enterprise United States USD
297 United States of America U.S. Treasury Bonds US912810SA79 912810SA7 0.058% $24.9M Debt US Treasury United States USD
298 Government National Mortgage Association US36179V7E46 36179V7E4 0.058% $24.8M Mortgage-backed securities US government agency United States USD
299 Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities US3132DQWE24 3132DQWE2 0.057% $24.5M Mortgage-backed securities US government-sponsored enterprise United States USD
300 Government National Mortgage Association US36179WTY48 36179WTY4 0.056% $24.1M Mortgage-backed securities US government agency United States USD
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