ZROZ 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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| UNITED STATES GOVT | UNITED STATES GOVT | 2026-03-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-06-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-03-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2024-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2024-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2024-06-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2024-03-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-06-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-03-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2022-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2022-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2022-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2022-03-31 | Added / first present |
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| N/A | N/A | 2021-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2021-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2021-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2021-06-30 | Added / first present |
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| N/A | N/A | 2020-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2020-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2020-09-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2020-09-30 | Added / first present |
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| N/A | N/A | 2020-06-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2020-06-30 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2019-12-31 | Added / first present |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2019-12-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| N/A | N/A | 2024-09-30 | Removed / first absent |
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| N/A | N/A | 2021-03-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2026-03-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-12-31 | Removed / first absent |
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| N/A | N/A | 2020-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-06-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-03-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-03-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2019-12-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2020-06-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2019-12-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2021-06-30 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2021-03-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2020-09-30 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2021-06-30 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2022-03-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2021-09-30 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2022-09-30 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2022-03-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2022-12-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2023-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-09-30 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2023-12-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2025-03-31 | Removed / first absent |
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| UNITED STATES GOVT | UNITED STATES GOVT | 2024-03-31 | Removed / first absent |
|---|
| UNITED STATES GOVT | UNITED STATES GOVT | 2025-03-31 | Removed / first absent |
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