# Portfolio overlap — FMMFX vs ASBAX Comparing **American Funds Mortgage Fund** (2026-02-28) and **Short-Term Bond Fund of America** (2026-02-28). - Shared positions: 261 - American Funds Mortgage Fund covered by Short-Term Bond Fund of America: 0.08900044003383383104807128561 - Short-Term Bond Fund of America covered by American Funds Mortgage Fund: 0.08900044003383383104807128562 ## American Funds Mortgage Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | CAPITAL GROUP CENTRAL CASH FUND | 0.036451 | ✓ | | FHLBanks Office of Finance | 0.032045 | | | FNCL 6 3/24 | 0.027502 | ✓ | | FR RQ0028 | 0.026589 | ✓ | | Federal Home Loan Bank Discount Notes | 0.024785 | | | FHLBDN 0 05/04/22 | 0.024773 | | | FHLBanks Office of Finance | 0.021288 | | | Federal Home Loan Bank Discount Notes | 0.017707 | | | Federal Home Loan Bank Discount Notes | 0.017663 | | | Federal Home Loan Bank (FHLB) | 0.012198 | | | FED HM LN BK BD 6/18/2026 | 0.011274 | | | FED HOME LN DISCOUNT NT DISCOUNT NOT 03/26 0.00000 | 0.010672 | | | FN MA5701 | 0.010578 | ✓ | | FR SD8290 | 0.010168 | ✓ | | US TREASURY N/B | 0.010010 | ✓ | | FHLB | 0.008864 | | | FHLBanks Office of Finance | 0.008862 | | | US TREASURY N/B | 0.008775 | | | FNCL 2 4/26 | 0.008719 | | | US TREASURY N/B | 0.008550 | | | FR SD8534 | 0.008438 | ✓ | | FR SD8342 | 0.008391 | ✓ | | FN 190445 | 0.008056 | | | US TREASURY N/B | 0.007844 | | | Uniform Mortgage-Backed Security, TBA | 0.007568 | | | FR SD8496 | 0.007417 | | | FNMA 30YR 2.5% 07/01/2052#FA2839 | 0.007037 | | | FNMDI4 3.5 BF0765 09-01-63 | 0.007031 | | | FR RQ0015 | 0.006732 | | | FR RB5113 | 0.006728 | | | FR SL2621 | 0.006596 | | | FR SD8507 | 0.006374 | ✓ | | FNMA 30YR 2.5% 07/01/2052#FS7879 | 0.006359 | | | FNMA 30YR 6% 02/01/2055#MA5615 | 0.005784 | ✓ | | US TREASURY N/B | 0.005619 | ✓ | | FR SD8213 | 0.005502 | | | FN MA5674 | 0.005321 | ✓ | | FHLB | 0.005307 | | | FED HM LN BK BD 5/15/2026 | 0.005303 | | | FN MA5735 | 0.005237 | | | FNCL UMBS 6.5 FA2842 07-01-55 | 0.005193 | | | G2 MA7051 | 0.005134 | | | Federal Farm Credit, 03 | 0.004985 | | | FNCL UMBS 6.0 QX4065 01-01-55 | 0.004960 | ✓ | | UMBS, 30 Year | 0.004817 | ✓ | | FED HOME LN DISCOUNT NT DISCOUNT NOT 03/26 0.00000 | 0.004768 | | | US TREASURY N/B | 0.004571 | | | Federal Home Loan Bank Discount Notes | 0.004523 | | | GOVERNMENT NATIONAL MORTGAGE CORPORATION | 0.004435 | | | Fannie Mae or Freddie Mac | 0.004320 | ✓ | ## Short-Term Bond Fund of America — top positions | Security | Weight | Shared | |----------|--------|--------| | US TREASURY N/B | 0.097457 | | | CAPITAL GROUP CENTRAL CASH FUND | 0.084149 | ✓ | | US TREASURY N/B | 0.053854 | | | US TREASURY N/B | 0.049161 | | | US TREASURY N/B | 0.030312 | | | US TREASURY N/B | 0.024147 | | | US TREASURY N/B | 0.019151 | | | US TREASURY N/B | 0.014547 | | | US TREASURY N/B | 0.011856 | | | US TREASURY N/B | 0.011343 | | | US TREASURY N/B | 0.009375 | | | US TREASURY N/B | 0.009334 | | | US TREASURY N/B | 0.007555 | | | US TREASURY N/B | 0.005580 | | | US TREASURY N/B | 0.004959 | | | U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.004459 | | | US TREASURY N/B | 0.004404 | | | US TREASURY N/B | 0.003786 | | | Hertz Vehicle Financing LP, Series 2021-2A, Class A | 0.003704 | | | USRE 2021-1 A1 | 0.003594 | ✓ | | US TREASURY N/B | 0.003253 | | | WFLOOR 2025-1A A 144A 4.23% 10-15-29 | 0.003153 | | | AVCCT 2024-2A A 144A 5.38% 05-15-29 | 0.003080 | | | U.S. Treasury Inflation-Protected Indexed Bonds | 0.003020 | | | US TREASURY N/B | 0.002940 | | | Ares LIII CLO Ltd., Series 2019-53A, Class A1R2 | 0.002853 | | | SORT 2020-1 A1 | 0.002812 | ✓ | | US TREASURY N/B | 0.002653 | | | SMRT 2022-MINI | 0.002619 | ✓ | | JPMORGAN CHASE | 0.002500 | | | FORDR 2026-1 A | 0.002468 | | | DROCK 2025-1 A | 0.002427 | | | FR RQ0028 | 0.002244 | ✓ | | US TREASURY N/B | 0.002230 | | | VZMT 2025-9 A1A 3.96% 10-21-30 | 0.002151 | | | BX 2025-ARIA A | 0.002093 | | | APARK 2025-A A2 144A 4.43% 04-20-35 | 0.002083 | | | MARS INC | 0.002014 | | | FR SD4053 | 0.002005 | ✓ | | GCRED BSL CLO 1 SER 2025-BSL1A CL A1 V/R REGD 144A P/P 4.71352000 | 0.001998 | | | KSA IJARAH SUKUK LTD 144A LIFE 4.25% 09-09-30 | 0.001994 | | | US TREASURY N/B | 0.001990 | | | PAID 2025-R3 A 144A 4.841% 01-18-33 | 0.001983 | | | CMO | 0.001953 | | | MARS INC SR UNSECURED 144A 03/28 4.6 | 0.001941 | | | SAUDI INT BOND | 0.001880 | | | TPRK 2021-1A A1R CLO 144A FRN 04-15-34 | 0.001873 | | | FHMS K515 A2 | 0.001857 | | | CFMT 2024-RM5 A 144A FRN 10-25-54 | 0.001824 | | | POSH 2025-2 A 144A 5.065% 07-20-33 | 0.001818 | | ## Sources - N-PORT (fund A) — accession `0001193125-26-182050` (as of 2026-02-28) - N-PORT (fund B) — accession `0001193125-26-182058` (as of 2026-02-28) --- _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 _