XNTK 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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| Amphenol Corp | Amphenol Corp | 2025-12-31 | Added / first present |
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| Crowdstrike Holdings Inc | Crowdstrike Holdings Inc | 2025-12-31 | Added / first present |
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| Marvell Technology Inc | Marvell Technology Inc | 2025-12-31 | Added / first present |
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| Arista Networks Inc | Arista Networks Inc | 2025-12-31 | Added / first present |
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| MicroStrategy Inc | MicroStrategy Inc | 2024-12-31 | Added / first present |
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| Palantir Technologies Inc | Palantir Technologies Inc | 2024-12-31 | Added / first present |
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| AppLovin Corp | AppLovin Corp | 2024-12-31 | Added / first present |
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| ARM Holdings PLC | ARM Holdings PLC | 2024-12-31 | Added / first present |
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| Lam Research Corp | Lam Research Corp | 2024-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2024-09-30 | Added / first present |
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| MercadoLibre Inc | MercadoLibre Inc | 2023-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2023-03-31 | Added / first present |
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| Pinduoduo Inc | Pinduoduo Inc | 2022-12-31 | Added / first present |
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| Analog Devices Inc | Analog Devices Inc | 2022-12-31 | Added / first present |
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| Palo Alto Networks Inc | Palo Alto Networks Inc | 2022-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2022-09-30 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2022-09-30 | Added / first present |
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| ASML Holding NV | ASML Holding NV | 2021-12-31 | Added / first present |
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| Intuit Inc | Intuit Inc | 2021-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2021-12-31 | Added / first present |
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| Airbnb Inc | Airbnb Inc | 2021-12-31 | Added / first present |
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| ROBLOX Corp | ROBLOX Corp | 2021-12-31 | Added / first present |
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| Pinduoduo Inc | Pinduoduo Inc | 2020-12-31 | Added / first present |
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| NIO Inc | NIO Inc | 2020-12-31 | Added / first present |
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| MercadoLibre Inc | MercadoLibre Inc | 2020-12-31 | Added / first present |
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| Snap Inc | Snap Inc | 2020-12-31 | Added / first present |
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| Uber Technologies Inc | Uber Technologies Inc | 2020-12-31 | Added / first present |
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| Zoom Video Communications Inc | Zoom Video Communications Inc | 2020-12-31 | Added / first present |
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| Sea Ltd | Sea Ltd | 2020-12-31 | Added / first present |
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| Snowflake Inc | Snowflake Inc | 2020-12-31 | Added / first present |
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| State Street Global Advisors | State Street Global Advisors | 2020-09-30 | Added / first present |
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| Lam Research Corp | Lam Research Corp | 2019-12-31 | Added / first present |
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| Advanced Micro Devices Inc | Advanced Micro Devices Inc | 2019-12-31 | Added / first present |
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| Analog Devices Inc | Analog Devices Inc | 2019-12-31 | Added / first present |
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| VMware Inc | VMware Inc | 2019-12-31 | Added / first present |
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| Shopify Inc | Shopify Inc | 2019-12-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| MicroStrategy Inc | MicroStrategy Inc | 2025-12-31 | Removed / first absent |
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| ARM Holdings PLC | ARM Holdings PLC | 2025-12-31 | Removed / first absent |
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| MercadoLibre Inc | MercadoLibre Inc | 2024-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2023-12-31 | Removed / first absent |
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| Pinduoduo Inc | Pinduoduo Inc | 2025-12-31 | Removed / first absent |
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| Analog Devices Inc | Analog Devices Inc | 2024-12-31 | Removed / first absent |
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| Palo Alto Networks Inc | Palo Alto Networks Inc | 2025-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2022-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2024-09-30 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2022-06-30 | Removed / first absent |
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| Airbnb Inc | Airbnb Inc | 2024-12-31 | Removed / first absent |
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| ROBLOX Corp | ROBLOX Corp | 2022-12-31 | Removed / first absent |
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| Pinduoduo Inc | Pinduoduo Inc | 2021-12-31 | Removed / first absent |
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| NIO Inc | NIO Inc | 2021-12-31 | Removed / first absent |
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| MercadoLibre Inc | MercadoLibre Inc | 2021-12-31 | Removed / first absent |
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| Snap Inc | Snap Inc | 2022-12-31 | Removed / first absent |
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| Zoom Video Communications Inc | Zoom Video Communications Inc | 2021-12-31 | Removed / first absent |
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| Sea Ltd | Sea Ltd | 2022-12-31 | Removed / first absent |
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| Snowflake Inc | Snowflake Inc | 2024-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2021-03-31 | Removed / first absent |
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| Lam Research Corp | Lam Research Corp | 2024-12-31 | Removed / first absent |
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| Analog Devices Inc | Analog Devices Inc | 2020-12-31 | Removed / first absent |
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| VMware Inc | VMware Inc | 2020-12-31 | Removed / first absent |
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| Accenture PLC | Accenture PLC | 2020-12-31 | Removed / first absent |
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| Baidu Inc | Baidu Inc | 2020-12-31 | Removed / first absent |
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| JD.com Inc | JD.com Inc | 2023-12-31 | Removed / first absent |
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| PayPal Holdings Inc | PayPal Holdings Inc | 2019-12-31 | Removed / first absent |
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| Intuit Inc | Intuit Inc | 2020-12-31 | Removed / first absent |
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| Workday Inc | Workday Inc | 2020-12-31 | Removed / first absent |
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| Automatic Data Processing Inc | Automatic Data Processing Inc | 2019-12-31 | Removed / first absent |
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| Activision Blizzard Inc | Activision Blizzard Inc | 2020-12-31 | Removed / first absent |
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| Twitter Inc | Twitter Inc | 2019-12-31 | Removed / first absent |
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| Square Inc | Square Inc | 2019-12-31 | Removed / first absent |
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| Dell Technologies Inc | Dell Technologies Inc | 2019-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2019-12-31 | Removed / first absent |
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| State Street Global Advisors | State Street Global Advisors | 2022-06-30 | Removed / first absent |
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