SCOW 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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| ADT | ADT Inc | 2026-04-30 | Added / first present |
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| AMPH | Amphastar Pharmaceuticals Inc | 2026-04-30 | Added / first present |
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| BCC | Boise Cascade Co | 2026-04-30 | Added / first present |
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| CRC | California Resources Corp | 2026-04-30 | Added / first present |
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| EMBC | Embecta Corp | 2026-04-30 | Added / first present |
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| GTM | ZoomInfo Technologies Inc | 2026-04-30 | Added / first present |
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| IRDM | Iridium Communications Inc | 2026-04-30 | Added / first present |
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| KTB | Kontoor Brands Inc | 2026-04-30 | Added / first present |
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| LZ | Legalzoom.com Inc | 2026-04-30 | Added / first present |
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| MTCH | Match Group Inc | 2026-04-30 | Added / first present |
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| NSSC | Napco Security Technologies In | 2026-04-30 | Added / first present |
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| PAYC | Paycom Software Inc | 2026-04-30 | Added / first present |
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| POWI | Power Integrations Inc | 2026-04-30 | Added / first present |
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| WINA | Winmark Corp | 2026-04-30 | Added / first present |
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| WU | Western Union Co/The | 2026-04-30 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| TGNA | TEGNA Inc | 2026-04-30 | Removed / first absent |
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| ACIW | ACI Worldwide Inc | 2026-04-30 | Removed / first absent |
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| APOG | Apogee Enterprises Inc | 2026-04-30 | Removed / first absent |
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| AWI | Armstrong World Industries Inc | 2026-04-30 | Removed / first absent |
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| BCPC | Balchem Corp | 2026-04-30 | Removed / first absent |
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| CARS | Cars.com Inc | 2026-04-30 | Removed / first absent |
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| ETD | Ethan Allen Interiors Inc | 2026-04-30 | Removed / first absent |
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| IDCC | InterDigital Inc | 2026-04-30 | Removed / first absent |
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| OXM | Oxford Industries Inc | 2026-04-30 | Removed / first absent |
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| XPEL | XPEL Inc | 2026-04-30 | Removed / first absent |
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