QOWZ 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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| Workday, Inc. | Workday, Inc. | 2025-08-31 | Added / first present |
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| Old Dominion Freight Line, Inc. | Old Dominion Freight Line, Inc. | 2025-08-31 | Added / first present |
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| Becton, Dickinson and Co. | Becton, Dickinson and Co. | 2025-08-31 | Added / first present |
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| Church & Dwight Co., Inc. | Church & Dwight Co., Inc. | 2025-08-31 | Added / first present |
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| Xylem Inc. | Xylem Inc. | 2025-08-31 | Added / first present |
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| Veeva Systems Inc. | Veeva Systems Inc. | 2025-08-31 | Added / first present |
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| Leidos Holdings, Inc. | Leidos Holdings, Inc. | 2025-08-31 | Added / first present |
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| DexCom, Inc. | DexCom, Inc. | 2025-08-31 | Added / first present |
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| Domino's Pizza, Inc. | Domino's Pizza, Inc. | 2025-08-31 | Added / first present |
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| Paycom Software, Inc. | Paycom Software, Inc. | 2025-08-31 | Added / first present |
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| Chemed Corp. | Chemed Corp. | 2025-08-31 | Added / first present |
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| SPS Commerce, Inc. | SPS Commerce, Inc. | 2025-08-31 | Added / first present |
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| CorVel Corp. | CorVel Corp. | 2025-08-31 | Added / first present |
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| Proto Labs, Inc. | Proto Labs, Inc. | 2025-08-31 | Added / first present |
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| Exponent, Inc. | Exponent, Inc. | 2025-08-31 | Added / first present |
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| Nathan's Famous, Inc. | Nathan's Famous, Inc. | 2025-08-31 | Added / first present |
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| Marzetti Co. (The) | Marzetti Co. (The) | 2025-08-31 | Added / first present |
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| Clean Harbors, Inc. | Clean Harbors, Inc. | 2025-08-31 | Added / first present |
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| ASGN Inc. | ASGN Inc. | 2025-08-31 | Added / first present |
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| ReposiTrak, Inc. | ReposiTrak, Inc. | 2025-08-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| UnitedHealth Group Inc. | UnitedHealth Group Inc. | 2025-08-31 | Removed / first absent |
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| Fastenal Co. | Fastenal Co. | 2025-08-31 | Removed / first absent |
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| Acuity Brands, Inc. | Acuity Brands, Inc. | 2025-08-31 | Removed / first absent |
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| Kinder Morgan, Inc. | Kinder Morgan, Inc. | 2025-08-31 | Removed / first absent |
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| Amphenol Corp. | Amphenol Corp. | 2025-08-31 | Removed / first absent |
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| Capital One Financial Corp. | Capital One Financial Corp. | 2025-08-31 | Removed / first absent |
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| Marriott International, Inc. | Marriott International, Inc. | 2025-08-31 | Removed / first absent |
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| Microchip Technology Inc. | Microchip Technology Inc. | 2025-08-31 | Removed / first absent |
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| McCormick & Co., Inc. | McCormick & Co., Inc. | 2025-08-31 | Removed / first absent |
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| Pool Corp. | Pool Corp. | 2025-08-31 | Removed / first absent |
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| Thor Industries, Inc. | Thor Industries, Inc. | 2025-08-31 | Removed / first absent |
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| West Pharmaceutical Services, Inc. | West Pharmaceutical Services, Inc. | 2025-08-31 | Removed / first absent |
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| Radius Recycling, Inc. | Radius Recycling, Inc. | 2025-08-31 | Removed / first absent |
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| Cavco Industries, Inc. | Cavco Industries, Inc. | 2025-08-31 | Removed / first absent |
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| Simulations Plus, Inc. | Simulations Plus, Inc. | 2025-08-31 | Removed / first absent |
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| TechTarget, Inc. | TechTarget, Inc. | 2025-02-28 | Removed / first absent |
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| Littelfuse, Inc. | Littelfuse, Inc. | 2025-08-31 | Removed / first absent |
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| Rambus Inc. | Rambus Inc. | 2025-08-31 | Removed / first absent |
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| Beacon Roofing Supply, Inc. | Beacon Roofing Supply, Inc. | 2025-05-31 | Removed / first absent |
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| DLH Holdings Corp. | DLH Holdings Corp. | 2025-08-31 | Removed / first absent |
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