BULD 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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| 7595 | Argo Graphics Inc | 2026-01-31 | Added / first present |
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| 9880 | UBTech Robotics Corp Ltd | 2026-01-31 | Added / first present |
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| BDC | Belden Inc | 2026-01-31 | Added / first present |
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| SYM | Symbotic Inc | 2026-01-31 | Added / first present |
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| KRN | Krones AG | 2025-07-31 | Added / first present |
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| 6525 | Kokusai Electric Corp | 2025-07-31 | Added / first present |
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| SNPS | Synopsys Inc | 2025-07-31 | Added / first present |
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| SPY | SPDR S&P 500 ETF Trust | 2025-07-31 | Added / first present |
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| Mount Vernon Liquid Assets Portfolio, LLC | Mount Vernon Liquid Assets Portfolio, LLC | 2025-04-30 | Added / first present |
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| IMI | IMI PLC | 2025-01-31 | Added / first present |
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| 6841 | Yokogawa Electric Corp | 2025-01-31 | Added / first present |
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| AMKR | Amkor Technology Inc | 2025-01-31 | Added / first present |
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| BDC | Belden Inc | 2025-01-31 | Added / first present |
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| KAI | Kadant Inc | 2025-01-31 | Added / first present |
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| OII | Oceaneering International Inc | 2025-01-31 | Added / first present |
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| CAMT | Camtek Ltd/Israel | 2024-07-31 | Added / first present |
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| AUTO | AutoStore Holdings Ltd | 2024-01-31 | Added / first present |
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| 7729 | Tokyo Seimitsu Co Ltd | 2024-01-31 | Added / first present |
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| ALU | Altium Ltd | 2024-01-31 | Added / first present |
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| ACLS | Axcelis Technologies Inc | 2023-07-31 | Added / first present |
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| TER | Teradyne Inc | 2023-07-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| SNPS | Synopsys Inc | 2025-10-31 | Removed / first absent |
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| SPY | SPDR S&P 500 ETF Trust | 2025-10-31 | Removed / first absent |
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| BDC | Belden Inc | 2025-07-31 | Removed / first absent |
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| AUTO | AutoStore Holdings Ltd | 2025-07-31 | Removed / first absent |
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| ALU | Altium Ltd | 2024-10-31 | Removed / first absent |
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| SIE | Siemens AG | 2025-07-31 | Removed / first absent |
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| ANSS | ANSYS Inc | 2025-07-31 | Removed / first absent |
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| 6134 | Fuji Corp/Aichi | 2024-07-31 | Removed / first absent |
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| 522 | ASMPT Ltd | 2025-07-31 | Removed / first absent |
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| ALTR | Altair Engineering Inc | 2025-04-30 | Removed / first absent |
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| DUE | Duerr AG | 2024-07-31 | Removed / first absent |
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| FARO | FARO Technologies Inc | 2025-01-31 | Removed / first absent |
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| MAXR | Maxar Technologies Inc | 2023-07-31 | Removed / first absent |
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| DM | Desktop Metal Inc | 2024-01-31 | Removed / first absent |
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| VLD | Velo3D Inc | 2024-01-31 | Removed / first absent |
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| AMBA | Ambarella Inc | 2025-01-31 | Removed / first absent |
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| CGNX | Cognex Corp | 2025-01-31 | Removed / first absent |
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| TDY | Teledyne Technologies Inc | 2025-01-31 | Removed / first absent |
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