MSTB 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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| UXK6 | N/A | 2026-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2026-03-31 | Added / first present |
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| UXJ6 | N/A | 2026-03-31 | Added / first present |
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| ESM6 | N/A | 2026-03-31 | Added / first present |
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| ESH6 | N/A | 2025-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-12-31 | Added / first present |
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| ESZ5 | N/A | 2025-09-30 | Added / first present |
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| ESU5 | N/A | 2025-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2025-03-31 | Added / first present |
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| UXJ5 | N/A | 2025-03-31 | Added / first present |
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| UXK5 | N/A | 2025-03-31 | Added / first present |
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| ESM5 | N/A | 2025-03-31 | Added / first present |
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| SPXW 4 P5630 | N/A | 2025-03-31 | Added / first present |
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| SPXW 3 P5580 | N/A | 2025-03-31 | Added / first present |
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| ESH5 | N/A | 2024-12-31 | Added / first present |
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| ESZ4 | N/A | 2024-09-30 | Added / first present |
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| SPXW 9 P5735 | N/A | 2024-09-30 | Added / first present |
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| ESU4 | N/A | 2024-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-31 | Added / first present |
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| ESM4 | N/A | 2024-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2024-03-31 | Added / first present |
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| ESH4 | N/A | 2023-12-31 | Added / first present |
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| UXV3 | N/A | 2023-09-30 | Added / first present |
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| UXX3 | N/A | 2023-09-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-09-30 | Added / first present |
|---|
| TREASURY BILL | TREASURY BILL | 2023-09-30 | Added / first present |
|---|
| ESZ3 | N/A | 2023-09-30 | Added / first present |
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| ESU3 | N/A | 2023-06-30 | Added / first present |
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| ESM3 | N/A | 2023-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2023-03-31 | Added / first present |
|---|
| UXK3 | N/A | 2023-03-31 | Added / first present |
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| SPY 4 C424 | N/A | 2023-03-31 | Added / first present |
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| UXJ3 | N/A | 2023-03-31 | Added / first present |
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| ESH3 | N/A | 2022-12-31 | Added / first present |
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| SPY 12 C405 | N/A | 2022-12-31 | Added / first present |
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| UXG3 | N/A | 2022-12-31 | Added / first present |
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| UXF3 | N/A | 2022-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2022-09-30 | Added / first present |
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| ESZ2 | N/A | 2022-09-30 | Added / first present |
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| UXV2 | N/A | 2022-09-30 | Added / first present |
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| UXX2 | N/A | 2022-09-30 | Added / first present |
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| ESU2 | N/A | 2022-06-30 | Added / first present |
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| UXQ2 | N/A | 2022-06-30 | Added / first present |
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| UXN2 | N/A | 2022-06-30 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2022-03-31 | Added / first present |
|---|
| ESM2 | N/A | 2022-03-31 | Added / first present |
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| ESH2 | N/A | 2021-12-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2021-09-30 | Added / first present |
|---|
| ESZ1 | N/A | 2021-09-30 | Added / first present |
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| SPY 9 C466 | N/A | 2021-09-30 | Added / first present |
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| UVXY | ProShares Ultra VIX Short-Term | 2021-09-30 | Added / first present |
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| ESU1 | N/A | 2021-06-30 | Added / first present |
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| ESM1 | N/A | 2021-03-31 | Added / first present |
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| TREASURY BILL | TREASURY BILL | 2021-03-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| ESH6 | N/A | 2026-03-31 | Removed / first absent |
|---|
| ESZ5 | N/A | 2025-12-31 | Removed / first absent |
|---|
| ESU5 | N/A | 2025-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2026-03-31 | Removed / first absent |
|---|
| UXJ5 | N/A | 2025-06-30 | Removed / first absent |
|---|
| UXK5 | N/A | 2025-06-30 | Removed / first absent |
|---|
| ESM5 | N/A | 2025-06-30 | Removed / first absent |
|---|
| SPXW 4 P5630 | N/A | 2025-06-30 | Removed / first absent |
|---|
| SPXW 3 P5580 | N/A | 2025-06-30 | Removed / first absent |
|---|
| ESH5 | N/A | 2025-03-31 | Removed / first absent |
|---|
| ESZ4 | N/A | 2024-12-31 | Removed / first absent |
|---|
| SPXW 9 P5735 | N/A | 2024-12-31 | Removed / first absent |
|---|
| ESU4 | N/A | 2024-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2025-03-31 | Removed / first absent |
|---|
| ESM4 | N/A | 2024-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2025-03-31 | Removed / first absent |
|---|
| ESH4 | N/A | 2024-03-31 | Removed / first absent |
|---|
| UXV3 | N/A | 2023-12-31 | Removed / first absent |
|---|
| UXX3 | N/A | 2023-12-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2024-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-12-31 | Removed / first absent |
|---|
| ESZ3 | N/A | 2023-12-31 | Removed / first absent |
|---|
| ESU3 | N/A | 2023-09-30 | Removed / first absent |
|---|
| ESM3 | N/A | 2023-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-09-30 | Removed / first absent |
|---|
| UXK3 | N/A | 2023-06-30 | Removed / first absent |
|---|
| SPY 4 C424 | N/A | 2023-06-30 | Removed / first absent |
|---|
| UXJ3 | N/A | 2023-06-30 | Removed / first absent |
|---|
| ESH3 | N/A | 2023-03-31 | Removed / first absent |
|---|
| SPY 12 C405 | N/A | 2023-03-31 | Removed / first absent |
|---|
| UXG3 | N/A | 2023-03-31 | Removed / first absent |
|---|
| UXF3 | N/A | 2023-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-09-30 | Removed / first absent |
|---|
| ESZ2 | N/A | 2022-12-31 | Removed / first absent |
|---|
| UXV2 | N/A | 2022-12-31 | Removed / first absent |
|---|
| UXX2 | N/A | 2022-12-31 | Removed / first absent |
|---|
| ESU2 | N/A | 2022-09-30 | Removed / first absent |
|---|
| UXQ2 | N/A | 2022-09-30 | Removed / first absent |
|---|
| UXN2 | N/A | 2022-09-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2023-03-31 | Removed / first absent |
|---|
| ESM2 | N/A | 2022-06-30 | Removed / first absent |
|---|
| ESH2 | N/A | 2022-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2022-09-30 | Removed / first absent |
|---|
| ESZ1 | N/A | 2021-12-31 | Removed / first absent |
|---|
| SPY 9 C466 | N/A | 2021-12-31 | Removed / first absent |
|---|
| UVXY | ProShares Ultra VIX Short-Term | 2021-12-31 | Removed / first absent |
|---|
| ESU1 | N/A | 2021-09-30 | Removed / first absent |
|---|
| ESM1 | N/A | 2021-06-30 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2022-03-31 | Removed / first absent |
|---|
| ESH1 | N/A | 2021-03-31 | Removed / first absent |
|---|
| TREASURY BILL | TREASURY BILL | 2021-09-30 | Removed / first absent |
|---|
| FRAXX | Goldman Sachs Financial Square | 2021-03-31 | Removed / first absent |
|---|
| SPY 12 C375 | N/A | 2021-03-31 | Removed / first absent |
|---|
| VIXY | ProShares VIX Short-Term Futur | 2021-03-31 | Removed / first absent |
|---|