FIW 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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| GRC | Gorman-Rupp Co | 2026-03-31 | Added / first present |
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| J | Jacobs Solutions Inc. | 2026-03-31 | Added / first present |
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| HTO | H2O America | 2025-06-30 | Added / first present |
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| FBIN | Fortune Brands Innovations Inc | 2025-03-31 | Added / first present |
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| MAS | Masco Corp | 2025-03-31 | Added / first present |
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| PRMB | Primo Brands Corp | 2024-12-31 | Added / first present |
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| MSEX | Middlesex Water Co | 2024-09-30 | Added / first present |
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| RBC Capital Markets Corporation | RBC Capital Markets Corporation | 2024-03-31 | Added / first present |
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| MEG | Montrose Environmental Group I | 2024-03-31 | Added / first present |
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| HWKN | Hawkins Inc | 2024-03-31 | Added / first present |
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| VLTO | Veralto Corp | 2023-12-31 | Added / first present |
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| FERG | Ferguson PLC | 2023-09-29 | Added / first present |
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| WAT | Waters Corp | 2023-09-29 | Added / first present |
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| BNP Paribas Securities Corp | BNP Paribas Securities Corp | 2023-03-31 | Added / first present |
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| HWKN | Hawkins Inc | 2023-03-31 | Added / first present |
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| BNP PARIBAS SECURITIES CORP. | BNP PARIBAS SECURITIES CORP. | 2022-03-31 | Added / first present |
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| FTOXX | Goldman Sachs Financial Square | 2022-03-31 | Added / first present |
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| CNM | Core & Main Inc | 2022-03-31 | Added / first present |
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| ZWS | Zurn Water Solutions Corp | 2021-12-31 | Added / first present |
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| STN | Stantec Inc | 2021-09-30 | Added / first present |
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| MEG | Montrose Environmental Group I | 2021-03-31 | Added / first present |
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| ERII | Energy Recovery Inc | 2021-03-31 | Added / first present |
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| J.P. MORGAN SECURITIES LLC | J.P. MORGAN SECURITIES LLC | 2020-09-30 | Added / first present |
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| PRMW | Primo Water Corp | 2020-09-30 | Added / first present |
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| FTOXX | GOLDMAN SACHS TR FINL SQ TSY IN | 2020-06-30 | Added / first present |
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| FRTA | Forterra Inc | 2020-06-30 | Added / first present |
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| AQN | Algonquin Power & Utilities Co | 2020-06-30 | Added / first present |
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| WTRG | Essential Utilities Inc | 2020-03-31 | Added / first present |
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| BNP PARIBAS SECURITIES CORP. | BNP PARIBAS SECURITIES CORP. | 2019-12-31 | Added / first present |
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| FTOXX | GOLDMAN SACHS TR FINL SQ TSY IN | 2019-12-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| MSEX | Middlesex Water Co | 2025-03-31 | Removed / first absent |
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| MEG | Montrose Environmental Group I | 2025-03-31 | Removed / first absent |
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| BNP Paribas Securities Corp | BNP Paribas Securities Corp | 2023-12-31 | Removed / first absent |
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| HWKN | Hawkins Inc | 2023-09-29 | Removed / first absent |
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| BNP PARIBAS SECURITIES CORP. | BNP PARIBAS SECURITIES CORP. | 2022-09-30 | Removed / first absent |
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| FTOXX | Goldman Sachs Financial Square | 2024-06-30 | Removed / first absent |
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| MEG | Montrose Environmental Group I | 2023-09-29 | Removed / first absent |
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| ERII | Energy Recovery Inc | 2024-03-31 | Removed / first absent |
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| J.P. MORGAN SECURITIES LLC | J.P. MORGAN SECURITIES LLC | 2021-03-31 | Removed / first absent |
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| PRMW | Primo Water Corp | 2024-12-31 | Removed / first absent |
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| FTOXX | GOLDMAN SACHS TR FINL SQ TSY IN | 2021-03-31 | Removed / first absent |
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| FRTA | Forterra Inc | 2021-03-31 | Removed / first absent |
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| WTRG | Essential Utilities Inc | 2026-03-31 | Removed / first absent |
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| BNP PARIBAS SECURITIES CORP. | BNP PARIBAS SECURITIES CORP. | 2020-03-31 | Removed / first absent |
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| FTOXX | GOLDMAN SACHS TR FINL SQ TSY IN | 2020-03-31 | Removed / first absent |
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| AQUA | Evoqua Water Technologies Corp | 2023-03-31 | Removed / first absent |
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| WTR | Aqua America Inc | 2020-03-31 | Removed / first absent |
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| WAAS | AquaVenture Holdings Ltd | 2020-03-31 | Removed / first absent |
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| SJW | SJW Group | 2025-06-30 | Removed / first absent |
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| RXN | Rexnord Corp | 2021-12-31 | Removed / first absent |
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| AEGN | Aegion Corp | 2021-03-31 | Removed / first absent |
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| PRMW | Primo Water Corp | 2020-03-31 | Removed / first absent |
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| DHR | Danaher Corp | 2024-03-31 | Removed / first absent |
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| ERII | Energy Recovery Inc | 2020-09-30 | Removed / first absent |
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| FLS | Flowserve Corp | 2024-09-30 | Removed / first absent |
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| GRC | Gorman-Rupp Co/The | 2022-03-31 | Removed / first absent |
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| LNN | Lindsay Corp | 2026-03-31 | Removed / first absent |
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| MSEX | Middlesex Water Co | 2024-03-31 | Removed / first absent |
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| YORW | York Water Co/The | 2021-09-30 | Removed / first absent |
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