XSD 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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| Wolfspeed Inc | Wolfspeed Inc | 2026-03-31 | Added / first present |
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| CONTRA DATAVAULT AI IN | CONTRA DATAVAULT AI IN | 2026-03-31 | Added / first present |
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| Kopin Corp | Kopin Corp | 2025-12-31 | Added / first present |
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| SkyWater Technology Inc | SkyWater Technology Inc | 2025-12-31 | Added / first present |
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| Datavault AI Inc | Datavault AI Inc | 2025-12-31 | Added / first present |
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| Penguin Solutions Inc | Penguin Solutions Inc | 2025-09-30 | Added / first present |
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| Rigetti Computing Inc | Rigetti Computing Inc | 2024-12-31 | Added / first present |
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| Astera Labs Inc | Astera Labs Inc | 2024-09-30 | Added / first present |
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| NVE Corp | NVE Corp | 2023-09-30 | Added / first present |
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| Meta Materials Inc | Meta Materials Inc | 2022-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2022-03-31 | Added / first present |
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| Navitas Semiconductor Corp | Navitas Semiconductor Corp | 2022-03-31 | Added / first present |
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| Meta Materials Inc | Meta Materials Inc | 2021-12-31 | Added / first present |
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| Wolfspeed Inc | Wolfspeed Inc | 2021-12-31 | Added / first present |
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| indie Semiconductor Inc | indie Semiconductor Inc | 2021-12-31 | Added / first present |
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| Marvell Technology Inc | Marvell Technology Inc | 2021-06-30 | Added / first present |
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| NeoPhotonics Corp | NeoPhotonics Corp | 2021-03-31 | Added / first present |
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| Kopin Corp | Kopin Corp | 2021-03-31 | Added / first present |
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| Allegro MicroSystems Inc | Allegro MicroSystems Inc | 2021-03-31 | Added / first present |
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| SiTime Corp | SiTime Corp | 2020-12-31 | Added / first present |
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| DSP Group Inc | DSP Group Inc | 2020-06-30 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| Datavault AI Inc | Datavault AI Inc | 2026-03-31 | Removed / first absent |
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| Meta Materials Inc | Meta Materials Inc | 2023-03-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2024-09-30 | Removed / first absent |
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| Meta Materials Inc | Meta Materials Inc | 2022-09-30 | Removed / first absent |
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| Wolfspeed Inc | Wolfspeed Inc | 2025-06-30 | Removed / first absent |
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| NeoPhotonics Corp | NeoPhotonics Corp | 2022-09-30 | Removed / first absent |
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| Kopin Corp | Kopin Corp | 2022-03-31 | Removed / first absent |
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| DSP Group Inc | DSP Group Inc | 2021-12-31 | Removed / first absent |
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| Xilinx Inc | Xilinx Inc | 2022-03-31 | Removed / first absent |
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| Maxim Integrated Products Inc | Maxim Integrated Products Inc | 2021-09-30 | Removed / first absent |
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| Applied Materials Inc | Applied Materials Inc | 2019-12-31 | Removed / first absent |
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| Cree Inc | Cree Inc | 2021-12-31 | Removed / first absent |
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| Inphi Corp | Inphi Corp | 2021-06-30 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2021-12-31 | Removed / first absent |
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| SunPower Corp | SunPower Corp | 2022-09-30 | Removed / first absent |
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| Cypress Semiconductor Corp | Cypress Semiconductor Corp | 2020-06-30 | Removed / first absent |
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