IDU 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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| 1XAUM26 | XAU UTILITIES JUN26 | 2026-04-30 | Added / first present |
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| BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | 2026-01-31 | Added / first present |
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| 1XAUH26 | XAU UTILITIES MAR26 | 2026-01-31 | Added / first present |
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| 1XAUZ25 | XAU UTILITIES DEC25 | 2025-10-31 | Added / first present |
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| TALEN ENERGY CORP | TALEN ENERGY CORP | 2025-07-31 | Added / first present |
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| 1XAUU25 | XAU UTILITIES SEP25 | 2025-07-31 | Added / first present |
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| 1XAUM25 | XAU UTILITIES JUN25 | 2025-04-30 | Added / first present |
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| BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | 2025-01-31 | Added / first present |
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| MDU RESOURCES GROUP, INC. | MDU RESOURCES GROUP, INC. | 2025-01-31 | Added / first present |
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| BROOKFIELD RENEWABLE CORPORATION | BROOKFIELD RENEWABLE CORPORATION | 2025-01-31 | Added / first present |
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| 1XAUH25 | XAU UTILITIES MAR25 | 2025-01-31 | Added / first present |
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| 1XAUZ24 | XAU UTILITIES DEC24 | 2024-10-31 | Added / first present |
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| 1XAUU24 | XAU UTILITIES SEP24 | 2024-07-31 | Added / first present |
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| 1XAUM24 | XAU UTILITIES JUN24 | 2024-04-30 | Added / first present |
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| IXSH4 | XAU UTILITIES MAR24 | 2024-01-31 | Added / first present |
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| 1XAUZ23 | XAU UTILITIES DEC23 | 2023-10-31 | Added / first present |
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| CLEARWAY ENERGY, INC. | CLEARWAY ENERGY, INC. | 2023-07-31 | Added / first present |
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| CLEARWAY ENERGY, INC. | CLEARWAY ENERGY, INC. | 2023-07-31 | Added / first present |
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| IXSU3 | XAU UTILITIES SEP23 | 2023-07-31 | Added / first present |
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| IXSM3 | XAU UTILITIES JUN23 | 2023-04-30 | Added / first present |
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| IXSH3 | XAU UTILITIES MAR23 | 2023-01-31 | Added / first present |
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| IXSZ2 | XAU UTILITIES DEC22 | 2022-10-31 | Added / first present |
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| IXSU2 | XAU UTILITIES SEP22 | 2022-07-31 | Added / first present |
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| Constellation Energy Corp | Constellation Energy Corp | 2022-04-30 | Added / first present |
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| BlackRock Funds III | BlackRock Funds III | 2022-01-31 | Added / first present |
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| OGE Energy Corp | OGE Energy Corp | 2021-10-31 | Added / first present |
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| Waste Management Inc | Waste Management Inc | 2021-10-31 | Added / first present |
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| Republic Services Inc | Republic Services Inc | 2021-10-31 | Added / first present |
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| Sunrun Inc | Sunrun Inc | 2021-10-31 | Added / first present |
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| Stericycle Inc | Stericycle Inc | 2021-10-31 | Added / first present |
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| Clean Harbors Inc | Clean Harbors Inc | 2021-10-31 | Added / first present |
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| Brookfield Renewable Corp | Brookfield Renewable Corp | 2021-10-31 | Added / first present |
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| PG&E Corp | PG&E Corp | 2020-10-31 | Added / first present |
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| BlackRock Funds III | BlackRock Funds III | 2020-04-30 | Added / first present |
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| Essential Utilities Inc | Essential Utilities Inc | 2020-04-30 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
|---|
| BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | 2026-04-30 | Removed / first absent |
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| 1XAUH26 | XAU UTILITIES MAR26 | 2026-04-30 | Removed / first absent |
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| 1XAUZ25 | XAU UTILITIES DEC25 | 2026-01-31 | Removed / first absent |
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| 1XAUU25 | XAU UTILITIES SEP25 | 2025-10-31 | Removed / first absent |
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| 1XAUM25 | XAU UTILITIES JUN25 | 2025-07-31 | Removed / first absent |
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| BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares | 2025-07-31 | Removed / first absent |
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| 1XAUH25 | XAU UTILITIES MAR25 | 2025-04-30 | Removed / first absent |
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| 1XAUZ24 | XAU UTILITIES DEC24 | 2025-01-31 | Removed / first absent |
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| 1XAUU24 | XAU UTILITIES SEP24 | 2024-10-31 | Removed / first absent |
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| 1XAUM24 | XAU UTILITIES JUN24 | 2024-07-31 | Removed / first absent |
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| IXSH4 | XAU UTILITIES MAR24 | 2024-04-30 | Removed / first absent |
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| 1XAUZ23 | XAU UTILITIES DEC23 | 2024-01-31 | Removed / first absent |
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| IXSU3 | XAU UTILITIES SEP23 | 2023-10-31 | Removed / first absent |
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| IXSM3 | XAU UTILITIES JUN23 | 2023-07-31 | Removed / first absent |
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| IXSH3 | XAU UTILITIES MAR23 | 2023-04-30 | Removed / first absent |
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| IXSZ2 | XAU UTILITIES DEC22 | 2023-01-31 | Removed / first absent |
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| IXSU2 | XAU UTILITIES SEP22 | 2022-10-31 | Removed / first absent |
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| BlackRock Funds III | BlackRock Funds III | 2024-07-31 | Removed / first absent |
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| Sunrun Inc | Sunrun Inc | 2024-07-31 | Removed / first absent |
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| Stericycle Inc | Stericycle Inc | 2025-01-31 | Removed / first absent |
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| Brookfield Renewable Corp | Brookfield Renewable Corp | 2025-01-31 | Removed / first absent |
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| BlackRock Funds III | BlackRock Funds III | 2020-07-31 | Removed / first absent |
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| Chicago Mercantile Exchange | Chicago Mercantile Exchange | 2022-07-31 | Removed / first absent |
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| Aqua America Inc | Aqua America Inc | 2020-04-30 | Removed / first absent |
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| MDU Resources Group Inc | MDU Resources Group Inc | 2021-10-31 | Removed / first absent |
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| Hawaiian Electric Industries Inc | Hawaiian Electric Industries Inc | 2024-07-31 | Removed / first absent |
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| Avangrid Inc | Avangrid Inc | 2025-01-31 | Removed / first absent |
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| ALLETE Inc | ALLETE Inc | 2021-10-31 | Removed / first absent |
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| New Jersey Resources Corp | New Jersey Resources Corp | 2021-10-31 | Removed / first absent |
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| Portland General Electric Co | Portland General Electric Co | 2021-10-31 | Removed / first absent |
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| South Jersey Industries Inc | South Jersey Industries Inc | 2020-10-31 | Removed / first absent |
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| El Paso Electric Co | El Paso Electric Co | 2020-07-31 | Removed / first absent |
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| NorthWestern Corp | NorthWestern Corp | 2021-10-31 | Removed / first absent |
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| Spire Inc | Spire Inc | 2021-10-31 | Removed / first absent |
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| Black Hills Corp | Black Hills Corp | 2021-10-31 | Removed / first absent |
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| Southwest Gas Holdings Inc | Southwest Gas Holdings Inc | 2021-10-31 | Removed / first absent |
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| Avista Corp | Avista Corp | 2021-10-31 | Removed / first absent |
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| PNM Resources Inc | PNM Resources Inc | 2021-10-31 | Removed / first absent |
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| ONE Gas Inc | ONE Gas Inc | 2021-10-31 | Removed / first absent |
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