FMAT additions & removals
Changes are observation-bounded: an addition is the first retained official snapshot containing a security after an earlier absence; a removal is its first retained absence. Baseline holdings receive no invented addition date.
Additions
| Ticker | Issuer | Observed date | Change |
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| Hycroft Mining Holding Corp | Hycroft Mining Holding Corp | 2026-04-30 | Added / first present |
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| Westlake Corp | Westlake Corp | 2026-01-31 | Added / first present |
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| United States Antimony Corp | United States Antimony Corp | 2026-01-31 | Added / first present |
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| McEwen Inc | McEwen Inc | 2026-01-31 | Added / first present |
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| Trilogy Metals Inc | Trilogy Metals Inc | 2026-01-31 | Added / first present |
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| NioCorp Developments Ltd | NioCorp Developments Ltd | 2026-01-31 | Added / first present |
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| ASP Isotopes Inc | ASP Isotopes Inc | 2026-01-31 | Added / first present |
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| American Battery Technology Co | American Battery Technology Co | 2026-01-31 | Added / first present |
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| Eightco Holdings Inc | Eightco Holdings Inc | 2026-01-31 | Added / first present |
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| USA Rare Earth Inc | USA Rare Earth Inc | 2025-10-31 | Added / first present |
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| Solstice Advanced Materials Inc | Solstice Advanced Materials Inc | 2025-10-31 | Added / first present |
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| TMC the metals co Inc | TMC the metals co Inc | 2025-07-31 | Added / first present |
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| Perpetua Resources Corp | Perpetua Resources Corp | 2025-04-30 | Added / first present |
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| Perimeter Solutions Inc | Perimeter Solutions Inc | 2025-01-31 | Added / first present |
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| Magnera Corp | Magnera Corp | 2025-01-31 | Added / first present |
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| Ginkgo Bioworks Holdings Inc | Ginkgo Bioworks Holdings Inc | 2024-10-31 | Added / first present |
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| Gatos Silver Inc | Gatos Silver Inc | 2024-07-31 | Added / first present |
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| Worthington Steel Inc | Worthington Steel Inc | 2024-01-31 | Added / first present |
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| Arch Resources Inc | Arch Resources Inc | 2023-10-31 | Added / first present |
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| TMC the metals co Inc | TMC the metals co Inc | 2023-10-31 | Added / first present |
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| Olympic Steel Inc | Olympic Steel Inc | 2023-07-31 | Added / first present |
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| Knife River Corp | Knife River Corp | 2023-07-31 | Added / first present |
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| Ramaco Resources Inc | Ramaco Resources Inc | 2023-07-31 | Added / first present |
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| Ivanhoe Electric Inc / US | Ivanhoe Electric Inc / US | 2023-04-30 | Added / first present |
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| Haynes International Inc | Haynes International Inc | 2023-01-31 | Added / first present |
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| TimkenSteel Corp | TimkenSteel Corp | 2022-07-31 | Added / first present |
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| LSB Industries Inc | LSB Industries Inc | 2022-07-31 | Added / first present |
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| Ramaco Resources Inc | Ramaco Resources Inc | 2022-07-31 | Added / first present |
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| Intrepid Potash Inc | Intrepid Potash Inc | 2022-07-31 | Added / first present |
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| Ginkgo Bioworks Holdings Inc | Ginkgo Bioworks Holdings Inc | 2022-07-31 | Added / first present |
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| McEwen Mining Inc | McEwen Mining Inc | 2022-07-31 | Added / first present |
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| Aspen Aerogels Inc | Aspen Aerogels Inc | 2022-04-30 | Added / first present |
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| Ryerson Holding Corp | Ryerson Holding Corp | 2022-01-31 | Added / first present |
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| Gatos Silver Inc | Gatos Silver Inc | 2022-01-31 | Added / first present |
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| Alpha Metallurgical Resources Inc | Alpha Metallurgical Resources Inc | 2022-01-31 | Added / first present |
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| PureCycle Technologies Inc | PureCycle Technologies Inc | 2022-01-31 | Added / first present |
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| Origin Materials Inc | Origin Materials Inc | 2022-01-31 | Added / first present |
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| TriMas Corp | TriMas Corp | 2021-10-31 | Added / first present |
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| Sylvamo Corp | Sylvamo Corp | 2021-10-31 | Added / first present |
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| Ecovyst Inc | Ecovyst Inc | 2021-10-31 | Added / first present |
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| Pactiv Evergreen Inc | Pactiv Evergreen Inc | 2021-07-31 | Added / first present |
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| MP Materials Corp | MP Materials Corp | 2021-07-31 | Added / first present |
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| Danimer Scientific Inc | Danimer Scientific Inc | 2021-07-31 | Added / first present |
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| Piedmont Lithium Inc | Piedmont Lithium Inc | 2021-07-31 | Added / first present |
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| Koppers Holdings Inc | Koppers Holdings Inc | 2021-01-31 | Added / first present |
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| Glatfelter Corp | Glatfelter Corp | 2020-10-31 | Added / first present |
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| Ranpak Holdings Corp | Ranpak Holdings Corp | 2020-07-31 | Added / first present |
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| Avient Corp | Avient Corp | 2020-07-31 | Added / first present |
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| Contura Energy Inc | Contura Energy Inc | 2020-04-30 | Added / first present |
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| Arconic Corp | Arconic Corp | 2020-04-30 | Added / first present |
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| Forterra Inc | Forterra Inc | 2020-01-31 | Added / first present |
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| O-I Glass Inc | O-I Glass Inc | 2020-01-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| Magnera Corp | Magnera Corp | 2026-01-31 | Removed / first absent |
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| Ginkgo Bioworks Holdings Inc | Ginkgo Bioworks Holdings Inc | 2025-10-31 | Removed / first absent |
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| Gatos Silver Inc | Gatos Silver Inc | 2025-01-31 | Removed / first absent |
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| Arch Resources Inc | Arch Resources Inc | 2025-01-31 | Removed / first absent |
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| TMC the metals co Inc | TMC the metals co Inc | 2024-01-31 | Removed / first absent |
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| Olympic Steel Inc | Olympic Steel Inc | 2025-04-30 | Removed / first absent |
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| Haynes International Inc | Haynes International Inc | 2025-01-31 | Removed / first absent |
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| LSB Industries Inc | LSB Industries Inc | 2025-07-31 | Removed / first absent |
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| Ramaco Resources Inc | Ramaco Resources Inc | 2023-07-31 | Removed / first absent |
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| Intrepid Potash Inc | Intrepid Potash Inc | 2024-01-31 | Removed / first absent |
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| Ginkgo Bioworks Holdings Inc | Ginkgo Bioworks Holdings Inc | 2024-10-31 | Removed / first absent |
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| McEwen Mining Inc | McEwen Mining Inc | 2023-01-31 | Removed / first absent |
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| Aspen Aerogels Inc | Aspen Aerogels Inc | 2026-04-30 | Removed / first absent |
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| Gatos Silver Inc | Gatos Silver Inc | 2022-07-31 | Removed / first absent |
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| Origin Materials Inc | Origin Materials Inc | 2024-01-31 | Removed / first absent |
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| Pactiv Evergreen Inc | Pactiv Evergreen Inc | 2025-04-30 | Removed / first absent |
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| Danimer Scientific Inc | Danimer Scientific Inc | 2023-01-31 | Removed / first absent |
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| Piedmont Lithium Inc | Piedmont Lithium Inc | 2024-07-31 | Removed / first absent |
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| Glatfelter Corp | Glatfelter Corp | 2023-01-31 | Removed / first absent |
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| Ranpak Holdings Corp | Ranpak Holdings Corp | 2025-07-31 | Removed / first absent |
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| Contura Energy Inc | Contura Energy Inc | 2020-07-31 | Removed / first absent |
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| Arconic Corp | Arconic Corp | 2023-10-31 | Removed / first absent |
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| Forterra Inc | Forterra Inc | 2022-04-30 | Removed / first absent |
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| WestRock Co | WestRock Co | 2024-07-31 | Removed / first absent |
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| Amyris Inc | Amyris Inc | 2023-10-31 | Removed / first absent |
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| Sealed Air Corp | Sealed Air Corp | 2026-04-30 | Removed / first absent |
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| Westlake Chemical Corp | Westlake Chemical Corp | 2025-07-31 | Removed / first absent |
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| WR Grace & Co | WR Grace & Co | 2021-10-31 | Removed / first absent |
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| PolyOne Corp | PolyOne Corp | 2020-07-31 | Removed / first absent |
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| Allegheny Technologies Inc | Allegheny Technologies Inc | 2025-07-31 | Removed / first absent |
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| Carpenter Technology Corp | Carpenter Technology Corp | 2025-10-31 | Removed / first absent |
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| United States Steel Corp | United States Steel Corp | 2025-07-31 | Removed / first absent |
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| GCP Applied Technologies Inc | GCP Applied Technologies Inc | 2022-10-31 | Removed / first absent |
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| Livent Corp | Livent Corp | 2024-01-31 | Removed / first absent |
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| Worthington Industries Inc | Worthington Industries Inc | 2024-01-31 | Removed / first absent |
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| Ferro Corp | Ferro Corp | 2022-04-30 | Removed / first absent |
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| Kraton Corp | Kraton Corp | 2022-04-30 | Removed / first absent |
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| Schulman A Inc | Schulman A Inc | 2020-04-30 | Removed / first absent |
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| PQ Group Holdings Inc | PQ Group Holdings Inc | 2021-10-31 | Removed / first absent |
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| Innophos Holdings Inc | Innophos Holdings Inc | 2020-04-30 | Removed / first absent |
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| Chase Corp | Chase Corp | 2024-01-31 | Removed / first absent |
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| Neenah Inc | Neenah Inc | 2022-07-31 | Removed / first absent |
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| American Vanguard Corp | American Vanguard Corp | 2024-01-31 | Removed / first absent |
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| Domtar Corp | Domtar Corp | 2022-01-31 | Removed / first absent |
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| Schweitzer-Mauduit International Inc | Schweitzer-Mauduit International Inc | 2025-07-31 | Removed / first absent |
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| Kronos Worldwide Inc | Kronos Worldwide Inc | 2025-10-31 | Removed / first absent |
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| AdvanSix Inc | AdvanSix Inc | 2026-04-30 | Removed / first absent |
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| Ryerson Holding Corp | Ryerson Holding Corp | 2020-07-31 | Removed / first absent |
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| Intrepid Potash Inc | Intrepid Potash Inc | 2020-07-31 | Removed / first absent |
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| Schnitzer Steel Industries Inc | Schnitzer Steel Industries Inc | 2025-04-30 | Removed / first absent |
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| FutureFuel Corp | FutureFuel Corp | 2024-01-31 | Removed / first absent |
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| Boise Cascade Co | Boise Cascade Co | 2021-01-31 | Removed / first absent |
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| PH Glatfelter Co | PH Glatfelter Co | 2020-10-31 | Removed / first absent |
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| Mercer International Inc | Mercer International Inc | 2025-04-30 | Removed / first absent |
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| Verso Corp | Verso Corp | 2021-01-31 | Removed / first absent |
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| Clearwater Paper Corp | Clearwater Paper Corp | 2025-07-31 | Removed / first absent |
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| Resolute Forest Products Inc | Resolute Forest Products Inc | 2020-01-31 | Removed / first absent |
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| Berry Global Group Inc | Berry Global Group Inc | 2025-04-30 | Removed / first absent |
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| Myers Industries Inc | Myers Industries Inc | 2025-04-30 | Removed / first absent |
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| Owens-Illinois Inc | Owens-Illinois Inc | 2020-01-31 | Removed / first absent |
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| Tredegar Corp | Tredegar Corp | 2023-07-31 | Removed / first absent |
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| Haynes International Inc | Haynes International Inc | 2021-01-31 | Removed / first absent |
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| Valvoline Inc | Valvoline Inc | 2023-07-31 | Removed / first absent |
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| US Concrete Inc | US Concrete Inc | 2021-10-31 | Removed / first absent |
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| AK Steel Holding Corp | AK Steel Holding Corp | 2020-04-30 | Removed / first absent |
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| Koppers Holdings Inc | Koppers Holdings Inc | 2020-07-31 | Removed / first absent |
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| TimkenSteel Corp | TimkenSteel Corp | 2020-07-31 | Removed / first absent |
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| Rayonier Advanced Materials Inc | Rayonier Advanced Materials Inc | 2020-07-31 | Removed / first absent |
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| Summit Materials Inc | Summit Materials Inc | 2025-04-30 | Removed / first absent |
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| OMNOVA Solutions Inc | OMNOVA Solutions Inc | 2020-04-30 | Removed / first absent |
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| McEwen Mining Inc | McEwen Mining Inc | 2022-07-31 | Removed / first absent |
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