MSTP 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 |
|---|---|---|---|
| Treasury Bill | Treasury Bill | 2025-12-31 | Added / first present |
Removals
| Ticker | Issuer | Observed date | Change |
|---|---|---|---|
| Treasury Bill | Treasury Bill | 2026-03-31 | Removed / first absent |