TYA 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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| DTRXX | DREYFUS TRSY OBLIG CASH M | 2026-03-31 | Added / first present |
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| ZNM6 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2026-03-31 | Added / first present |
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| TYH6 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Added / first present |
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| TYZ5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-09-30 | Added / first present |
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| SBIL | Simplify Government Money Market ETF | 2025-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-06-30 | Added / first present |
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| TYU5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Added / first present |
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| TYM5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-12-31 | Added / first present |
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| TYH5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-09-30 | Added / first present |
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| TYZ4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Added / first present |
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| TYU4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-06-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-28 | Added / first present |
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| TYM4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-03-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-28 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-12-29 | Added / first present |
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| TYH4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-12-29 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-12-29 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-12-29 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-09-29 | Added / first present |
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| TYZ3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-09-29 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-09-29 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-06-30 | Added / first present |
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| TYU3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-06-30 | Added / first present |
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| WI TSY BILL | WI TSY BILL | 2023-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-03-31 | Added / first present |
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| TYM3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2022-12-30 | Added / first present |
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| TYH3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2022-12-30 | Added / first present |
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| TYZ2 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2022-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2022-09-30 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| TYH6 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2026-03-31 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-12-31 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-12-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2025-12-31 | Removed / first absent |
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| TYZ5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-12-31 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Removed / first absent |
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| TYU5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-09-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-06-30 | Removed / first absent |
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| TYM5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-06-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-09-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2025-03-31 | Removed / first absent |
|---|
| TYH5 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2025-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2025-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-12-31 | Removed / first absent |
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| TYZ4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-12-31 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-09-30 | Removed / first absent |
|---|
| TYU4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
|---|
| TYM4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-06-28 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-03-28 | Removed / first absent |
|---|
| TYH4 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2024-03-28 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2024-06-28 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-03-28 | Removed / first absent |
|---|
| TYZ3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-12-29 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2023-12-29 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-09-29 | Removed / first absent |
|---|
| TYU3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-09-29 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2023-12-29 | Removed / first absent |
|---|
| WI TSY BILL | WI TSY BILL | 2023-09-29 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2023-09-29 | Removed / first absent |
|---|
| TYM3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-03-31 | Removed / first absent |
|---|
| TYH3 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2023-03-31 | Removed / first absent |
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| TYZ2 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2022-12-30 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2023-03-31 | Removed / first absent |
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| FIDELITY INV MMTRSY 1 680 | FIDELITY INV MMTRSY 1 680 | 2026-03-31 | Removed / first absent |
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| TREASURY BILL | TREASURY BILL | 2022-09-30 | Removed / first absent |
|---|
| TYU2 | BOARD OF TRADE OF THE CITY OF CHICAGO, INC. | 2022-09-30 | Removed / first absent |
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