ACES 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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| Energy Vault Holdings Inc | Energy Vault Holdings Inc | 2026-02-28 | Added / first present |
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| T1 Energy Inc | T1 Energy Inc | 2026-02-28 | Added / first present |
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| American Battery Technology Co | American Battery Technology Co | 2026-02-28 | Added / first present |
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| Amprius Technologies Inc | Amprius Technologies Inc | 2025-11-30 | Added / first present |
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| Microvast Holdings Inc | Microvast Holdings Inc | 2025-08-31 | Added / first present |
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| Chargepoint Holdings Inc | Chargepoint Holdings Inc | 2025-08-31 | Added / first present |
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| Lucid Group Inc | Lucid Group Inc | 2025-08-31 | Added / first present |
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| Willdan Group Inc | Willdan Group Inc | 2025-02-28 | Added / first present |
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| Gevo Inc | Gevo Inc | 2025-02-28 | Added / first present |
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| Eos Energy Enterprises Inc | Eos Energy Enterprises Inc | 2024-11-30 | Added / first present |
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| Aspen Aerogels Inc | Aspen Aerogels Inc | 2024-08-31 | Added / first present |
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| Nikola Corp | Nikola Corp | 2024-08-31 | Added / first present |
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| American Superconductor Corp | American Superconductor Corp | 2024-05-31 | Added / first present |
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| Rex American Resources Corp | Rex American Resources Corp | 2024-05-31 | Added / first present |
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| Andersons Inc/the | Andersons Inc/the | 2024-05-31 | Added / first present |
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| Wolfspeed Inc | Wolfspeed Inc | 2024-05-31 | Added / first present |
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| Piedmont Lithium Inc | Piedmont Lithium Inc | 2024-02-29 | Added / first present |
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| Arcadium Lithium Plc | Arcadium Lithium Plc | 2024-02-29 | Added / first present |
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| Northland Power Inc | Northland Power Inc | 2023-11-30 | Added / first present |
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| Innergex Renewable Energy Inc | Innergex Renewable Energy Inc | 2023-11-30 | Added / first present |
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| Fisker Inc | Fisker Inc | 2023-11-30 | Added / first present |
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| Eos Energy Enterprises Inc | Eos Energy Enterprises Inc | 2023-11-30 | Added / first present |
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| Microvast Holdings Inc | Microvast Holdings Inc | 2023-11-30 | Added / first present |
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| Nextracker Inc | Nextracker Inc | 2023-08-31 | Added / first present |
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| Darling Ingredients Inc | Darling Ingredients Inc | 2023-05-31 | Added / first present |
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| Altus Power Inc | Altus Power Inc | 2023-05-31 | Added / first present |
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| Albemarle Corp | Albemarle Corp | 2023-02-28 | Added / first present |
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| Clean Energy Fuels Corp | Clean Energy Fuels Corp | 2023-02-28 | Added / first present |
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| Gevo Inc | Gevo Inc | 2023-02-28 | Added / first present |
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| Energy Vault Holdings Inc | Energy Vault Holdings Inc | 2023-02-28 | Added / first present |
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| Nikola Corp | Nikola Corp | 2022-11-30 | Added / first present |
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| Montauk Renewables Inc | Montauk Renewables Inc | 2022-11-30 | Added / first present |
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| Rex American Resources Corp | Rex American Resources Corp | 2022-08-31 | Added / first present |
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| Livent Corp | Livent Corp | 2022-05-31 | Added / first present |
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| Hyliion Holdings Corp | Hyliion Holdings Corp | 2022-05-31 | Added / first present |
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| Fluence Energy Inc | Fluence Energy Inc | 2022-05-31 | Added / first present |
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| Lucid Group Inc | Lucid Group Inc | 2022-05-31 | Added / first present |
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| Rivian Automotive Inc | Rivian Automotive Inc | 2022-05-31 | Added / first present |
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| Archaea Energy Inc | Archaea Energy Inc | 2022-05-31 | Added / first present |
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| Proterra Inc | Proterra Inc | 2022-02-28 | Added / first present |
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| Microvast Holdings Inc | Microvast Holdings Inc | 2022-02-28 | Added / first present |
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| Li-cycle Holdings Corp | Li-cycle Holdings Corp | 2022-02-28 | Added / first present |
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| Evgo Inc | Evgo Inc | 2022-02-28 | Added / first present |
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| Hyzon Motors Inc | Hyzon Motors Inc | 2022-02-28 | Added / first present |
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| Volta Inc | Volta Inc | 2022-02-28 | Added / first present |
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| Enviva Inc | Enviva Inc | 2022-02-28 | Added / first present |
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| Green Plains Inc | Green Plains Inc | 2021-11-30 | Added / first present |
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| Lion Electric Co/the | Lion Electric Co/the | 2021-11-30 | Added / first present |
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| Stem Inc | Stem Inc | 2021-11-30 | Added / first present |
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| Lightning Emotors Inc | Lightning Emotors Inc | 2021-11-30 | Added / first present |
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| Rex American Resources Corp | Rex American Resources Corp | 2021-08-31 | Added / first present |
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| Xl Fleet Corp | Xl Fleet Corp | 2021-08-31 | Added / first present |
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| Shoals Technologies Group Inc | Shoals Technologies Group Inc | 2021-08-31 | Added / first present |
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| Romeo Power Inc | Romeo Power Inc | 2021-08-31 | Added / first present |
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| Chargepoint Holdings Inc | Chargepoint Holdings Inc | 2021-08-31 | Added / first present |
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| Aemetis Inc | Aemetis Inc | 2021-05-31 | Added / first present |
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| Sunworks Inc | Sunworks Inc | 2021-05-31 | Added / first present |
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| Array Technologies Inc | Array Technologies Inc | 2021-05-31 | Added / first present |
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| Eos Energy Enterprises Inc | Eos Energy Enterprises Inc | 2021-05-31 | Added / first present |
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| Infrastructure And Energy Alternatives Inc | Infrastructure And Energy Alternatives Inc | 2021-02-28 | Added / first present |
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| Ayro Inc | Ayro Inc | 2021-02-28 | Added / first present |
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| Beam Global | Beam Global | 2021-02-28 | Added / first present |
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| Greenpower Motor Co Inc | Greenpower Motor Co Inc | 2021-02-28 | Added / first present |
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| Workhorse Group Inc | Workhorse Group Inc | 2020-11-30 | Added / first present |
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| Blink Charging Co | Blink Charging Co | 2020-11-30 | Added / first present |
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| Arcimoto Inc | Arcimoto Inc | 2020-11-30 | Added / first present |
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| Cleanspark Inc | Cleanspark Inc | 2020-11-30 | Added / first present |
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| Xebec Adsorption Inc | Xebec Adsorption Inc | 2020-11-30 | Added / first present |
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| Maxeon Solar Technologies Limited | Maxeon Solar Technologies Limited | 2020-08-31 | Added / first present |
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| Orion Energy Systems Inc | Orion Energy Systems Inc | 2020-05-31 | Added / first present |
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| Terraform Power Inc | Terraform Power Inc | 2020-02-29 | Added / first present |
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| Sunnova Energy International I | Sunnova Energy International I | 2020-02-29 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| Chargepoint Holdings Inc | Chargepoint Holdings Inc | 2025-11-30 | Removed / first absent |
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| Nikola Corp | Nikola Corp | 2025-02-28 | Removed / first absent |
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| Wolfspeed Inc | Wolfspeed Inc | 2025-08-31 | Removed / first absent |
|---|
| Piedmont Lithium Inc | Piedmont Lithium Inc | 2024-11-30 | Removed / first absent |
|---|
| Arcadium Lithium Plc | Arcadium Lithium Plc | 2025-05-31 | Removed / first absent |
|---|
| Innergex Renewable Energy Inc | Innergex Renewable Energy Inc | 2025-08-31 | Removed / first absent |
|---|
| Fisker Inc | Fisker Inc | 2024-05-31 | Removed / first absent |
|---|
| Eos Energy Enterprises Inc | Eos Energy Enterprises Inc | 2024-02-29 | Removed / first absent |
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| Microvast Holdings Inc | Microvast Holdings Inc | 2024-05-31 | Removed / first absent |
|---|
| Darling Ingredients Inc | Darling Ingredients Inc | 2025-08-31 | Removed / first absent |
|---|
| Altus Power Inc | Altus Power Inc | 2024-11-30 | Removed / first absent |
|---|
| Gevo Inc | Gevo Inc | 2024-08-31 | Removed / first absent |
|---|
| Energy Vault Holdings Inc | Energy Vault Holdings Inc | 2024-02-29 | Removed / first absent |
|---|
| Nikola Corp | Nikola Corp | 2024-08-31 | Removed / first absent |
|---|
| Montauk Renewables Inc | Montauk Renewables Inc | 2023-08-31 | Removed / first absent |
|---|
| Rex American Resources Corp | Rex American Resources Corp | 2023-11-30 | Removed / first absent |
|---|
| Livent Corp | Livent Corp | 2024-02-29 | Removed / first absent |
|---|
| Hyliion Holdings Corp | Hyliion Holdings Corp | 2023-11-30 | Removed / first absent |
|---|
| Lucid Group Inc | Lucid Group Inc | 2025-08-31 | Removed / first absent |
|---|
| Archaea Energy Inc | Archaea Energy Inc | 2023-02-28 | Removed / first absent |
|---|
| Proterra Inc | Proterra Inc | 2023-08-31 | Removed / first absent |
|---|
| Microvast Holdings Inc | Microvast Holdings Inc | 2023-05-31 | Removed / first absent |
|---|
| Li-cycle Holdings Corp | Li-cycle Holdings Corp | 2024-02-29 | Removed / first absent |
|---|
| Hyzon Motors Inc | Hyzon Motors Inc | 2022-11-30 | Removed / first absent |
|---|
| Volta Inc | Volta Inc | 2023-02-28 | Removed / first absent |
|---|
| Enviva Inc | Enviva Inc | 2024-02-29 | Removed / first absent |
|---|
| Lion Electric Co/the | Lion Electric Co/the | 2023-08-31 | Removed / first absent |
|---|
| Stem Inc | Stem Inc | 2024-08-31 | Removed / first absent |
|---|
| Lightning Emotors Inc | Lightning Emotors Inc | 2022-08-31 | Removed / first absent |
|---|
| Rex American Resources Corp | Rex American Resources Corp | 2021-11-30 | Removed / first absent |
|---|
| Xl Fleet Corp | Xl Fleet Corp | 2022-08-31 | Removed / first absent |
|---|
| Romeo Power Inc | Romeo Power Inc | 2022-05-31 | Removed / first absent |
|---|
| Chargepoint Holdings Inc | Chargepoint Holdings Inc | 2025-08-31 | Removed / first absent |
|---|
| Aemetis Inc | Aemetis Inc | 2023-02-28 | Removed / first absent |
|---|
| Sunworks Inc | Sunworks Inc | 2021-11-30 | Removed / first absent |
|---|
| Eos Energy Enterprises Inc | Eos Energy Enterprises Inc | 2022-05-31 | Removed / first absent |
|---|
| Infrastructure And Energy Alternatives Inc | Infrastructure And Energy Alternatives Inc | 2022-11-30 | Removed / first absent |
|---|
| Ayro Inc | Ayro Inc | 2021-11-30 | Removed / first absent |
|---|
| Beam Global | Beam Global | 2022-02-28 | Removed / first absent |
|---|
| Greenpower Motor Co Inc | Greenpower Motor Co Inc | 2021-11-30 | Removed / first absent |
|---|
| Workhorse Group Inc | Workhorse Group Inc | 2023-08-31 | Removed / first absent |
|---|
| Blink Charging Co | Blink Charging Co | 2024-02-29 | Removed / first absent |
|---|
| Arcimoto Inc | Arcimoto Inc | 2022-05-31 | Removed / first absent |
|---|
| Cleanspark Inc | Cleanspark Inc | 2021-05-31 | Removed / first absent |
|---|
| Xebec Adsorption Inc | Xebec Adsorption Inc | 2021-08-31 | Removed / first absent |
|---|
| Maxeon Solar Technologies Limited | Maxeon Solar Technologies Limited | 2020-11-30 | Removed / first absent |
|---|
| Orion Energy Systems Inc | Orion Energy Systems Inc | 2021-11-30 | Removed / first absent |
|---|
| Terraform Power Inc | Terraform Power Inc | 2020-08-31 | Removed / first absent |
|---|
| Sunnova Energy International I | Sunnova Energy International I | 2025-05-31 | Removed / first absent |
|---|
| Acuity Brands Inc | Acuity Brands Inc | 2021-11-30 | Removed / first absent |
|---|
| Cree Inc | Cree Inc | 2021-05-31 | Removed / first absent |
|---|
| Universal Display Corp | Universal Display Corp | 2021-11-30 | Removed / first absent |
|---|
| Sunpower Corp | Sunpower Corp | 2024-08-31 | Removed / first absent |
|---|
| Pattern Energy Group Inc | Pattern Energy Group Inc | 2020-05-31 | Removed / first absent |
|---|
| Tpi Composites Inc | Tpi Composites Inc | 2024-02-29 | Removed / first absent |
|---|
| Vivint Solar Inc | Vivint Solar Inc | 2020-11-30 | Removed / first absent |
|---|
| American Superconductor Corp | American Superconductor Corp | 2022-08-31 | Removed / first absent |
|---|
| Rex American Resources Corp | Rex American Resources Corp | 2020-02-29 | Removed / first absent |
|---|
| Covanta Holding Corp | Covanta Holding Corp | 2021-11-30 | Removed / first absent |
|---|
| Renewable Energy Group Inc | Renewable Energy Group Inc | 2022-08-31 | Removed / first absent |
|---|
| Willdan Group Inc | Willdan Group Inc | 2021-11-30 | Removed / first absent |
|---|
| Transalta Renewables Inc | Transalta Renewables Inc | 2023-11-30 | Removed / first absent |
|---|
| Terraform Power Inc | Terraform Power Inc | 2020-02-29 | Removed / first absent |
|---|
| Enviva Partners Lp | Enviva Partners Lp | 2022-02-28 | Removed / first absent |
|---|