# Portfolio overlap — ABTHX vs AMHIX

Comparing **AB High Income Municipal Portfolio** (2026-02-28) and **American High-Income Municipal Bond Fund** (2026-01-31).

- Shared positions: 213
- AB High Income Municipal Portfolio covered by American High-Income Municipal Bond Fund: 0.1081843323025437237741667433
- American High-Income Municipal Bond Fund covered by AB High Income Municipal Portfolio: 0.1081843323025437237741667426

## AB High Income Municipal Portfolio — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| TOBACCO SETTLEMENT FING CORP N TOBGEN 06/46 FIXED 5 | 0.015446 |  |
| AB Fixed Income Shares, Inc. - Government Money Market Portfolio | 0.011749 |  |
| PUBLIC FIN AUTH WI REVENUE | 0.008965 |  |
| VIRGINIA TOBACCO SENIOR-SER B1 | 0.008509 |  |
| ARC70 II TR CA | 0.007673 |  |
| PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 | 0.007155 | ✓ |
| OH BUCGEN 5 06/01/2055 | 0.006897 | ✓ |
| BRISTOL TN INDL DEV BRD ST SALES TAX REVENUE | 0.006651 |  |
| NY TRANS CORP 5% 7/1/41 @ | 0.005966 |  |
| NFA 2022-1 A 4.375% 09-20-36 | 0.005869 | ✓ |
| RESTRUCTURED-CABS-SER | 0.005629 | ✓ |
| Carrollton-Farmers Branch Independent School District, Series 2025, GO Bonds | 0.005416 |  |
| Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022 | 0.005331 | ✓ |
| MANSFIELD TX INDEP SCH DIST | 0.005267 |  |
| PUERTO RICO SALES TAX FING COR REGD OID B/E 5.00000000 | 0.005206 | ✓ |
| Puerto Rico Electric Power Authority, Power Revenue Bonds, Refunding National Series 2007VV | 0.005080 |  |
| ARKANSAS ST DEV FIN AUTH INDL REGD B/E AMT 7.37500000 | 0.004924 |  |
| GOLDEN ST TOBACCO SECURITIZATI REGD ZCP OID B/E 0.00000000 | 0.004833 |  |
| CHICAGO IL BRD OF EDU REGD OID B/E 5.50000000 | 0.004760 | ✓ |
| Wisconsin (State of) Center District, Series 2020 D, RB | 0.004755 |  |
| ALIGN CAP SER 2021-3 TRUST | 0.004734 |  |
| METROPOLITAN PIER & EXPOSITION AUTHORITY | 0.004622 |  |
| MARYLAND ST STADIUM AUTH REVENUE | 0.004544 |  |
| UNIV OF CALIFORNIA CA REVENUES REGD N/C B/E 5.25000000 | 0.004433 | ✓ |
| City of Atlanta, Series 2023 E | 0.004365 |  |
| MISSOURI ST HLTH & EDUCTNL FACS AUTH HLTH FACS REVENUE | 0.004356 |  |
| University of California, Series 2026 CE | 0.004271 |  |
| NY TRANS CORP 5.50% 6/30/2054 @ | 0.004248 | ✓ |
| SCRANTON-LACKAWANNA PA HLTH & WELFARE AUTH | 0.004243 |  |
| NH NFADEV 4.12 01/20/2034 | 0.004214 | ✓ |
| CHICAGO IL BRD OF EDU REGD OID B/E 6.75000000 | 0.004160 | ✓ |
| PUBLIC FIN AUTH WI REVENUE REGD OID B/E 4.00000000 | 0.004137 |  |
| California Community Housing Agency, Series A-1 | 0.004035 | ✓ |
| LOS ANGELES-C-REF | 0.004032 |  |
| Black Belt Energy Gas District | 0.003989 |  |
| DALLAS-FORT WORTH TX INTERNATI REGD B/E AMT 5.00000000 | 0.003961 |  |
| RESTRUCTURED-SER A-2 | 0.003940 | ✓ |
| OU MEDICINE OBLIGATED GROUP 5.5% 08-15-57 | 0.003940 | ✓ |
| NEW HAMPSHIRE ST HLTH & EDU FACS AUTH REVENUE | 0.003921 |  |
| Central Valley Energy Authority, Series 2026 | 0.003830 |  |
| Public Energy Auth. of Kentucky Gas Supply Rev. Refg. C | 0.003829 | ✓ |
| PLEASANTON USD | 0.003824 |  |
| SOUTHEAST ENERGY-E | 0.003797 |  |
| AL BBEUTL 5 07/01/2033 | 0.003777 |  |
| SAN ANTONIO TX ELEC & GAS REVE REGD B/E 5.25000000 | 0.003765 |  |
| Salt River Project Agricultural Improvement & Power District, Series 2025, RB | 0.003749 |  |
| THE CHILDRENS TRUST FUND PR TO CHIGEN 05/57 ZEROCPNOID 0 | 0.003748 |  |
| California (State of) Community Choice Financing Authority (Green Bonds), Series 2023 C, RB | 0.003744 |  |
| MBTA SLS TAX 5.25% 7/1/55 | 0.003741 |  |
| Phoenix Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Great Hearts Academies Project, Series 2014A | 0.003728 |  |

## American High-Income Municipal Bond Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| Puerto Rico, General Obligation Bonds, Clawback Highway Transportation Authority Claims Taxable Series 2022 | 0.009354 | ✓ |
| Puerto Rico, General Obligation Bonds, Vintage CW NT Claims Taxable Series 2022 | 0.009109 | ✓ |
| U.S. Treasury Bills | 0.005823 |  |
| NEW YORK CITY TRANSITIONAL FINANCE AUTHORITY FUTURE TAX SECURED REVENUE FRN 11-01-54 | 0.003461 |  |
| WASTE PRO USA INC 3.0% 06-01-32 | 0.003403 |  |
| BIG RIVER STEEL LLC 4.5% 09-01-49 | 0.003402 |  |
| UIPA CROSSROADS PUBLIC INFRASTRUCTURE DISTRICT AJL PROJECT AREA 4.375% 06-01-52 | 0.003330 |  |
| Wisconsin (State of) Public Finance Authority, Series 2023 B, RB | 0.003289 |  |
| CSCDA COMMUNITY IMPROVEMENT AUTHORITY UNION SOUTH BAY 4.0% 07-01-56 | 0.003044 | ✓ |
| NEW YORK NY REGD V/R B/E 2.65000000 | 0.003043 |  |
| HM Metropolitan District No. 2, Series 2021, GO Bonds | 0.002976 |  |
| EDUCATIONAL GROWTH FUND LLC 5.0% 07-01-56 | 0.002851 | ✓ |
| PUERTO RICO SALES TAX FING COR REGD ZCP OID B/E 0.00000000 | 0.002840 | ✓ |
| Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A | 0.002824 |  |
| UNITED AIRLINES INC 4.0% 07-15-41 | 0.002804 |  |
| Public Energy Auth. of Kentucky Gas Supply Rev. Refg. C | 0.002685 | ✓ |
| BIG RIVER STEEL LLC 4.75% 09-01-49 | 0.002612 |  |
| OH BUCGEN 5 06/01/2055 | 0.002557 | ✓ |
| Montgomery (County of), MD, Series 2017, GO Bonds | 0.002523 |  |
| Black Belt Energy Gas District, Series 2025 G | 0.002503 |  |
| IL CHIEDU 5 12/01/2042 | 0.002494 |  |
| PUERTO RICO SALES TAX FING COR REGD OID B/E 4.75000000 | 0.002483 |  |
| RESTRUCTURED-SER A1 | 0.002461 |  |
| Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series B | 0.002432 |  |
| CO CCKFAC 6 12/01/2051 | 0.002422 |  |
| WA ST HSG FIN COMMN-1 | 0.002328 |  |
| State of Hawaii Department of Budget and Finance, The Queen's Health Systems, Series 2025B | 0.002320 |  |
| CHICAGO IL BRD OF EDU REGD OID B/E 7.00000000 | 0.002299 | ✓ |
| NY TRANSPRTN DEV -AMT | 0.002292 |  |
| TOBACCO SETTLEMENT-B2 | 0.002289 | ✓ |
| FREDDIE MAC MULTIFAMILY ML CERTIFICATES SER 2024-ML26 CL A V/R 3.26001000 | 0.002277 |  |
| PALISADE PARK NORTH METROPOLITAN DISTRICT NO 3 5.5% 12-01-51 | 0.002243 |  |
| Tender Option Bond Trust Receipts/Certificates | 0.002163 | ✓ |
| STATE OF HAWAII DEPARTMENT OF BUDGET & FINANCE 4.0% 03-01-37 | 0.002163 |  |
| LONGS PEAK METROPOLITAN DISTRICT 5.25% 12-01-51 | 0.002163 | ✓ |
| TOWN OF LITTLE ELM TX SPIRITAS RANCH PUBLIC IMPROVEMENT DISTRICT 5.375% 09-01-51 | 0.002156 |  |
| AM BIDCO OPERATIONS LLC PIK TL 1ST LIEN 8.5% 10-21-27 | 0.002152 |  |
| CSCDA Community Improvement Authority, Series 2021 A | 0.002143 |  |
| NY TRANS CORP 5% 8/1/2031 AMT | 0.002141 |  |
| LOUISIANA ST LOCAL GOVT ENVRNM REGD B/E 2.50000000 | 0.002102 |  |
| BUCKLEY METROPOLITAN DISTRICT NO 2 6.0% 12-01-51 | 0.002098 |  |
| BROOKLYN EVENTS CENTER LLC 5.0% 07-15-42 | 0.002086 |  |
| UNITED AIRLINES INC 5.25% 07-15-34 | 0.002070 |  |
| Rampart Range Metropolitan District No. 5, Series 2021, RB | 0.002065 |  |
| New Hampshire (State of) Business Finance Authority (Social Bonds), Series 2022-2A, RB | 0.002050 | ✓ |
| RIVERSIDE HEALTHCARE ASSOCIATION OBLIGATED GROUP 5.33% 07-01-45 | 0.002031 |  |
| California Community Housing Agency, Series 2021 A-2 | 0.002009 |  |
| TX EXXON 12 G=EXXON V1 | 0.001994 |  |
| LOUDOUN IDA VAR-C-HOW | 0.001980 |  |
| NY TRANS CORP(LAGUARDIA GATEW) 5.25% 1/1/50@ | 0.001978 |  |


## Sources

- N-PORT (fund A) — accession `0001410368-26-040411` (as of 2026-02-28)
  <https://www.sec.gov/Archives/edgar/data/798737/000141036826040411/0001410368-26-040411-index.htm>
- N-PORT (fund B) — accession `0001193125-26-130883` (as of 2026-01-31)
  <https://www.sec.gov/Archives/edgar/data/925950/000119312526130883/0001193125-26-130883-index.htm>

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