# Portfolio overlap — TIIUX vs IUSB Comparing **Core Fixed Income Fund** (2026-02-28) and **iShares Core Universal USD Bond ETF** (2026-01-31). - Shared positions: 2625 - Core Fixed Income Fund covered by iShares Core Universal USD Bond ETF: 0.1994256956901245514166816817 - iShares Core Universal USD Bond ETF covered by Core Fixed Income Fund: 0.1994256956901245514166816813 ## Core Fixed Income Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | FUTURE CONTRACT ON US 2YR NOTE (CBT) JUN26 0.00000000 | 0.059904 | | | FUTURE CONTRACT ON US 10YR NOTE (CBT)JUN26 0.00000000 | 0.027193 | | | FUTURE CONTRACT ON US 5YR NOTE (CBT) JUN26 0.00000000 | 0.023220 | | | FUTURE CONTRACT ON US ULTRA BOND CBT JUN26 0.00000000 | 0.013444 | | | US TREASURY N/B | 0.011203 | ✓ | | U.S. Treasury Bills | 0.010259 | | | US TREASURY N/B | 0.009718 | ✓ | | US TREASURY N/B | 0.008920 | ✓ | | US TREASURY N/B | 0.008817 | ✓ | | FUTURE CONTRACT ON US LONG BOND(CBT) JUN26 0.00000000 | 0.008714 | | | U.S. Treasury Bills | 0.008413 | | | FREDDIE MAC POOL UMBS P#SD3983 5.50000000 | 0.007533 | | | FNCL 5 3/24 | 0.007060 | | | G2 MB0025 | 0.005906 | ✓ | | US TREASURY N/B | 0.005173 | | | FNMA UMBS, 30 Year | 0.004860 | | | US TREASURY N/B | 0.004657 | ✓ | | FREDDIE MAC POOL UMBS P#SD0907 3.00000000 | 0.004405 | | | US TREASURY N/B | 0.004368 | ✓ | | Invesco Government & Agency Portfolio, Institutional Class | 0.004300 | | | G2 MA9851 | 0.004160 | ✓ | | GNMA II, 30 Year | 0.003959 | | | G2 MA7767 | 0.003921 | ✓ | | FNMA, Other | 0.003676 | | | US TREASURY N/B | 0.003337 | | | FN MA4513 | 0.003060 | | | Uniform Mortgage-Backed Security, TBA | 0.003009 | | | FNCL 5.5 3/25 | 0.002975 | | | FN MA5586 | 0.002882 | | | US TREASURY N/B | 0.002871 | ✓ | | FNMA, Other | 0.002841 | | | GOVERNMENT NATIONAL MORTGAGE ASSOCIATION SER 2024-51 CL GC 3.50000000 | 0.002840 | | | FR RQ0064 | 0.002758 | | | FANNIE MAE POOL UMBS P#BY2978 5.00000000 | 0.002743 | | | FN MA5701 | 0.002714 | | | FN CB3901 | 0.002605 | | | FREDDIE MAC REMICS SER 4995 CL QE 1.25000000 | 0.002430 | | | US TREASURY N/B | 0.002428 | ✓ | | G2 MA8098 | 0.002424 | ✓ | | G2 MA9852 | 0.002398 | ✓ | | US TREASURY N/B | 0.002264 | ✓ | | US TREASURY N/B | 0.002224 | ✓ | | US TREASURY N/B | 0.002218 | ✓ | | SEASONED LOANS STRUCTURED TRANSACTION TRUST SERIES 2025-1 SER 2025-1 CL A1 3.00000000 | 0.002194 | | | G2 MB0686 | 0.002182 | | | GOVERNMENT NATIONAL MORTGAGE CORPORATION | 0.002160 | | | FREDDIE MAC POOL UMBS P#QC7086 2.50000000 | 0.002135 | | | G2 MA9105 | 0.002087 | | | US TREASURY N/B | 0.002030 | ✓ | | GINNIE MAE II POOL P#MA9417 2.50000000 | 0.002024 | | ## iShares Core Universal USD Bond ETF — top positions | Security | Weight | Shared | |----------|--------|--------| | Blackrock Liquidity TempCash Inst | 0.023010 | | | BlackRock Cash Funds: Treasury, SL Agency Shares | 0.007770 | | | US TREASURY N/B | 0.003831 | ✓ | | US TREASURY N/B | 0.003785 | ✓ | | US TREASURY N/B | 0.003777 | ✓ | | US TREASURY N/B | 0.003775 | ✓ | | US TREASURY N/B | 0.003711 | ✓ | | US TREASURY N/B | 0.003708 | ✓ | | US TREASURY N/B | 0.003548 | ✓ | | US TREASURY N/B | 0.003495 | ✓ | | US TREASURY N/B | 0.003432 | ✓ | | US TREASURY N/B | 0.003366 | ✓ | | FN MA4018 | 0.003335 | | | US TREASURY N/B | 0.003275 | ✓ | | US TREASURY N/B | 0.003210 | ✓ | | US TREASURY N/B | 0.003197 | ✓ | | US TREASURY N/B | 0.003052 | ✓ | | US TREASURY N/B | 0.002966 | ✓ | | US TREASURY N/B | 0.002932 | ✓ | | US TREASURY N/B | 0.002756 | ✓ | | US TREASURY N/B | 0.002756 | | | US TREASURY N/B | 0.002717 | ✓ | | US TREASURY N/B | 0.002668 | ✓ | | US TREASURY N/B | 0.002655 | ✓ | | US TREASURY N/B | 0.002640 | ✓ | | US TREASURY N/B | 0.002620 | | | US TREASURY N/B | 0.002614 | | | US TREASURY N/B | 0.002590 | | | US TREASURY N/B | 0.002588 | ✓ | | US TREASURY N/B | 0.002547 | ✓ | | US TREASURY N/B | 0.002547 | ✓ | | US TREASURY N/B | 0.002473 | | | US TREASURY N/B | 0.002452 | ✓ | | US TREASURY N/B | 0.002428 | | | US TREASURY N/B | 0.002422 | ✓ | | US TREASURY N/B | 0.002419 | ✓ | | US TREASURY N/B | 0.002404 | ✓ | | US TREASURY N/B | 0.002394 | ✓ | | US TREASURY N/B | 0.002390 | ✓ | | US TREASURY N/B | 0.002343 | | | US TREASURY N/B | 0.002333 | ✓ | | US TREASURY N/B | 0.002294 | | | US TREASURY N/B | 0.002260 | ✓ | | US TREASURY N/B | 0.002248 | ✓ | | US TREASURY N/B | 0.002241 | ✓ | | US TREASURY N/B | 0.002226 | ✓ | | US TREASURY N/B | 0.002211 | ✓ | | G2 MA7192 | 0.002184 | | | US TREASURY N/B | 0.002144 | | | US TREASURY N/B | 0.002127 | | ## Sources - N-PORT (fund A) — accession `0001003715-26-001541` (as of 2026-02-28) - N-PORT (fund B) — accession `0002071691-26-007327` (as of 2026-01-31) --- _Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them._ _Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._ _Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed. See _