PSCM 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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| Solstice Advanced Materials Inc. | Solstice Advanced Materials Inc. | 2026-02-28 | Added / first present |
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| Eastman Chemical Co. | Eastman Chemical Co. | 2025-11-30 | Added / first present |
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| Hecla Mining Co. | Hecla Mining Co. | 2025-11-30 | Added / first present |
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| Chemours Co. (The) | Chemours Co. (The) | 2025-05-31 | Added / first present |
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| FMC Corp. | FMC Corp. | 2025-05-31 | Added / first present |
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| Celanese Corp. | Celanese Corp. | 2025-05-31 | Added / first present |
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| Element Solutions Inc. | Element Solutions Inc. | 2025-05-31 | Added / first present |
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| MP Materials Corp. | MP Materials Corp. | 2024-11-30 | Added / first present |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2024-08-31 | Added / first present |
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| Arch Resources, Inc. | Arch Resources, Inc. | 2024-05-31 | Added / first present |
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| Sealed Air Corp. | Sealed Air Corp. | 2024-02-29 | Added / first present |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2024-02-29 | Added / first present |
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| Worthington Steel, Inc. | Worthington Steel, Inc. | 2024-02-29 | Added / first present |
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| Sensient Technologies Corp. | Sensient Technologies Corp. | 2023-11-30 | Added / first present |
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| Worthington Enterprises, Inc. | Worthington Enterprises, Inc. | 2023-11-30 | Added / first present |
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| Alpha Metallurgical Resources, Inc. | Alpha Metallurgical Resources, Inc. | 2023-11-30 | Added / first present |
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| Ingevity Corp. | Ingevity Corp. | 2023-08-31 | Added / first present |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2022-11-30 | Added / first present |
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| Minerals Technologies Inc. | Minerals Technologies Inc. | 2022-11-30 | Added / first present |
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| Compass Minerals International, Inc. | Compass Minerals International, Inc. | 2022-02-28 | Added / first present |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2021-11-30 | Added / first present |
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| Sylvamo Corp. | Sylvamo Corp. | 2021-11-30 | Added / first present |
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| Trinseo PLC | Trinseo PLC | 2021-11-30 | Added / first present |
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| Domtar Corp. | Domtar Corp. | 2021-05-31 | Added / first present |
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| O-I Glass, Inc. | O-I Glass, Inc. | 2021-05-31 | Added / first present |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2020-11-30 | Added / first present |
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| Allegheny Technologies, Inc. | Allegheny Technologies, Inc. | 2020-11-30 | Added / first present |
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| Glatfelter Corp. | Glatfelter Corp. | 2020-11-30 | Added / first present |
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| Carpenter Technology Corp. | Carpenter Technology Corp. | 2020-08-31 | Added / first present |
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| Invesco Private Government Fund | Invesco Private Government Fund | 2020-05-31 | Added / first present |
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| Arconic Corp. | Arconic Corp. | 2020-05-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| Hecla Mining Co. | Hecla Mining Co. | 2026-02-28 | Removed / first absent |
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| MP Materials Corp. | MP Materials Corp. | 2025-11-30 | Removed / first absent |
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| Arch Resources, Inc. | Arch Resources, Inc. | 2025-02-28 | Removed / first absent |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2024-05-31 | Removed / first absent |
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| Worthington Enterprises, Inc. | Worthington Enterprises, Inc. | 2024-02-29 | Removed / first absent |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2023-05-31 | Removed / first absent |
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| Compass Minerals International, Inc. | Compass Minerals International, Inc. | 2024-11-30 | Removed / first absent |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2022-08-31 | Removed / first absent |
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| Trinseo PLC | Trinseo PLC | 2023-11-30 | Removed / first absent |
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| Domtar Corp. | Domtar Corp. | 2021-11-30 | Removed / first absent |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2021-08-31 | Removed / first absent |
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| Allegheny Technologies, Inc. | Allegheny Technologies, Inc. | 2025-05-31 | Removed / first absent |
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| Glatfelter Corp. | Glatfelter Corp. | 2022-11-30 | Removed / first absent |
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| Carpenter Technology Corp. | Carpenter Technology Corp. | 2025-02-28 | Removed / first absent |
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| Arconic Corp. | Arconic Corp. | 2023-08-31 | Removed / first absent |
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| Invesco Government & Agency Portfolio | Invesco Government & Agency Portfolio | 2020-05-31 | Removed / first absent |
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| Invesco Liquid Assets Portfolio | Invesco Liquid Assets Portfolio | 2020-05-31 | Removed / first absent |
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| Cleveland-Cliffs, Inc. | Cleveland-Cliffs, Inc. | 2021-05-31 | Removed / first absent |
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| GCP Applied Technologies, Inc. | GCP Applied Technologies, Inc. | 2022-11-30 | Removed / first absent |
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| Livent Corp. | Livent Corp. | 2024-02-29 | Removed / first absent |
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| Ferro Corp. | Ferro Corp. | 2022-05-31 | Removed / first absent |
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| Kraton Corp. | Kraton Corp. | 2022-05-31 | Removed / first absent |
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| A. Schulman Inc. | A. Schulman Inc. | 2020-05-31 | Removed / first absent |
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| Innophos Holdings, Inc. | Innophos Holdings, Inc. | 2020-02-29 | Removed / first absent |
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| Neenah, Inc. | Neenah, Inc. | 2022-08-31 | Removed / first absent |
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| American Vanguard Corp. | American Vanguard Corp. | 2023-11-30 | Removed / first absent |
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| Schweitzer-Mauduit International, Inc. | Schweitzer-Mauduit International, Inc. | 2025-05-31 | Removed / first absent |
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| AdvanSix, Inc. | AdvanSix, Inc. | 2026-02-28 | Removed / first absent |
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| FutureFuel Corp. | FutureFuel Corp. | 2023-11-30 | Removed / first absent |
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| Invesco Premier U.S. Government Money Portfolio | Invesco Premier U.S. Government Money Portfolio | 2020-08-31 | Removed / first absent |
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| Boise Cascade Co. | Boise Cascade Co. | 2021-02-28 | Removed / first absent |
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| PH Glatfelter Co. | PH Glatfelter Co. | 2020-11-30 | Removed / first absent |
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| Mercer International, Inc. | Mercer International, Inc. | 2024-11-30 | Removed / first absent |
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| Clearwater Paper Corp. | Clearwater Paper Corp. | 2024-11-30 | Removed / first absent |
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| Myers Industries, Inc. | Myers Industries, Inc. | 2024-11-30 | Removed / first absent |
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| Tredegar Corp. | Tredegar Corp. | 2023-08-31 | Removed / first absent |
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| Haynes International, Inc. | Haynes International, Inc. | 2024-11-30 | Removed / first absent |
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| Olympic Steel, Inc. | Olympic Steel, Inc. | 2024-11-30 | Removed / first absent |
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| US Concrete, Inc. | US Concrete, Inc. | 2021-08-31 | Removed / first absent |
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| AK Steel Holding Corp. | AK Steel Holding Corp. | 2020-05-31 | Removed / first absent |
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| Rayonier Advanced Materials, Inc. | Rayonier Advanced Materials, Inc. | 2023-08-31 | Removed / first absent |
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| LSB Industries, Inc. | LSB Industries, Inc. | 2020-05-31 | Removed / first absent |
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| Trinseo SA | Trinseo SA | 2021-11-30 | Removed / first absent |
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