| 持股明細(資料日期：2025/04/30) |
| 持股名稱 | 比例 |
| NORTHERN STATES PWR-MINN 5.1-2053/05/15 | 2.15% |
| DUKE ENERGY CAROLINAS 5.35-2053/01/15 | 2.06% |
| COMMONWEALTH EDISON CO 5.3-2053/02/01 | 1.83% |
| PACIFICORP 5.5-2054/05/15 | 1.52% |
| MIDAMERICAN ENERGY CO 5.85-2054/09/15 | 1.50% |
| ENTERGY LOUISIANA LLC 4.95-2045/01/15 | 1.48% |
| SAN DIEGO G & E 5.35-2053/04/01 | 1.36% |
| ONCOR ELECTRIC DELIVERY 4.95-2052/09/15 | 1.34% |
| UNION ELECTRIC CO 5.45-2053/03/15 | 1.34% |
| PUBLIC SERVICE COLORADO 5.25-2053/04/01 | 1.32% |
| PACIFICORP 5.35-2053/12/01 | 1.28% |
| SOUTHERN CAL EDISON 5.875-2053/12/01 | 1.26% |
| CON EDISON CO OF NY INC 6.15-2052/11/15 | 1.22% |
| ENTERGY ARKANSAS LLC 4.2-2049/04/01 | 1.17% |
| FLORIDA POWER & LIGHT CO 5.3-2053/04/01 | 1.16% |
| DUKE ENERGY FLORIDA LLC 5.95-2052/11/15 | 1.15% |
| PUBLIC SERVICE ELECTRIC 5.45-2053/08/01 | 1.15% |
| SOUTHERN CALIF GAS CO 6.35-2052/11/15 | 1.09% |
| VIRGINIA ELEC & POWER CO 5.7-2053/08/15 | 1.05% |
| FLORIDA POWER & LIGHT CO 5.25-2041/02/01 | 1.03% |
| PPL ELECTRIC UTILITIES 5.25-2053/05/15 | 1.02% |
| BALTIMORE GAS & ELECTRIC 5.4-2053/06/01 | 1.01% |
| DTE ELECTRIC CO 5.4-2053/04/01 | 1.00% |
| BERKSHIRE HATHAWAY ENERG 5.15-2043/11/15 | 0.98% |
| PECO ENERGY CO 4.375-2052/08/15 | 0.90% |
| INDIANA MICHIGAN POWER 5.625-2053/04/01 | 0.88% |
| PUBLIC SERVICE ELECTRIC 5.125-2053/03/15 | 0.86% |
| SOUTHERN CAL EDISON 4.65-2043/10/01 | 0.85% |
| SOUTHERN CAL EDISON 4.875-2049/03/01 | 0.83% |
| ENTERGY TEXAS INC 5.0-2052/09/15 | 0.83% |
| MIDAMERICAN ENERGY CO 4.25-2046/05/01 | 0.82% |
| EVERGY KANSAS CENTRAL 5.7-2053/03/15 | 0.81% |
| ATMOS ENERGY CORP 5.5-2041/06/15 | 0.80% |
| CENTERPOINT ENER HOUSTON 4.5-2044/04/01 | 0.80% |
| PUGET SOUND ENERGY INC 5.448-2053/06/01 | 0.80% |
| AEP TRANSMISSION CO LLC 5.4-2053/03/15 | 0.80% |
| DUKE ENERGY PROGRESS LLC 5.35-2053/03/15 | 0.78% |
| VIRGINIA ELEC & POWER CO 5.45-2053/04/01 | 0.78% |
| CON EDISON CO OF NY INC 4.45-2044/03/15 | 0.76% |
| SOUTHERN CAL EDISON 4.0-2047/04/01 | 0.76% |
| ATMOS ENERGY CORP 5.75-2052/10/15 | 0.76% |
| VIRGINIA ELEC & POWER CO 4.45-2044/02/15 | 0.75% |
| SOUTHWESTERN PUBLIC SERV 4.4-2048/11/15 | 0.75% |
| KENTUCKY UTILITIES CO 5.125-2040/11/01 | 0.74% |
| SAN DIEGO G & E 4.15-2048/05/15 | 0.72% |
| BERKSHIRE HATHAWAY ENERG 4.5-2045/02/01 | 0.71% |
| DUKE ENERGY INDIANA LLC 4.9-2043/07/15 | 0.71% |
| CON EDISON CO OF NY INC 3.95-2050/04/01 | 0.71% |
| DUKE ENERGY PROGRESS INC 4.2-2045/08/15 | 0.70% |
| NSTAR ELECTRIC CO 4.55-2052/06/01 | 0.69% |
| VIRGINIA ELEC & POWER CO 4.6-2048/12/01 | 0.68% |
| BERKSHIRE HATHAWAY ENERG 4.45-2049/01/15 | 0.67% |
| CONSOLIDATED EDISON CO O 4.5-2058/05/15 | 0.67% |
| FLORIDA POWER & LIGHT CO 4.125-2048/06/01 | 0.67% |
| ENTERGY LOUISIANA LLC 4.2-2050/04/01 | 0.66% |
| FLORIDA POWER & LIGHT CO 4.125-2042/02/01 | 0.66% |
| SOUTHERN CAL EDISON 5.7-2053/03/01 | 0.66% |
| PPL ELECTRIC UTILITIES 4.75-2043/07/15 | 0.66% |
| DUKE ENERGY INDIANA LLC 5.4-2053/04/01 | 0.66% |
| CONSOLIDATED EDISON CO O 4.625-2054/12/01 | 0.65% |
| ONCOR ELECTRIC DELIVERY 4.1-2048/11/15 | 0.65% |
| VIRGINIA ELEC & POWER CO 4.625-2052/05/15 | 0.65% |
| CON EDISON CO OF NY INC 4.125-2049/05/15 | 0.65% |
| CONSUMERS ENERGY CO 4.35-2049/04/15 | 0.65% |
| ONCOR ELECTRIC DELIVERY 5.25-2040/09/30 | 0.64% |
| ONCOR ELECTRIC DELIVERY 5.3-2042/06/01 | 0.64% |
| COMMONWEALTH EDISON CO 4.0-2049/03/01 | 0.64% |
| TAMPA ELECTRIC CO 5.0-2052/07/15 | 0.63% |
| TUCSON ELECTRIC POWER CO 5.5-2053/04/15 | 0.61% |
| PECO ENERGY CO 4.15-2044/10/01 | 0.60% |
| BERKSHIRE HATHAWAY ENERG 4.6-2053/05/01 | 0.60% |
| NEVADA POWER CO 6.0-2054/03/15 | 0.60% |
| PECO ENERGY CO 3.9-2048/03/01 | 0.60% |
| AMEREN ILLINOIS CO 4.5-2049/03/15 | 0.59% |
| CENTERPOINT ENER HOUSTON 4.85-2052/10/01 | 0.59% |
| BALTIMORE GAS & ELECTRIC 4.55-2052/06/01 | 0.59% |
| PUBLIC SERVICE ELECTRIC 3.8-2046/03/01 | 0.59% |
| SAN DIEGO G & E 4.5-2040/08/15 | 0.59% |
| IDAHO POWER CO 5.8-2054/04/01 | 0.58% |
| SOUTHERN CAL EDISON 4.125-2048/03/01 | 0.58% |
| DTE ELECTRIC CO 4.05-2048/05/15 | 0.58% |
| POTOMAC ELECTRIC POWER 4.15-2043/03/15 | 0.58% |
| CONSUMERS ENERGY CO 4.05-2048/05/15 | 0.57% |
| MIDAMERICAN ENERGY CO 4.25-2049/07/15 | 0.57% |
| COMMONWEALTH EDISON CO 4.7-2044/01/15 | 0.57% |
| DUKE ENERGY OHIO INC 5.65-2053/04/01 | 0.56% |
| COMMONWEALTH EDISON CO 4.35-2045/11/15 | 0.56% |
| CON EDISON CO OF NY INC 4.5-2045/12/01 | 0.56% |
| PUBLIC SERVICE ELECTRIC 3.6-2047/12/01 | 0.55% |
| CON EDISON CO OF NY INC 4.65-2048/12/01 | 0.55% |
| CON EDISON CO OF NY INC 5.7-2040/06/15 | 0.55% |
| CENTERPOINT ENER HOUSTON 4.25-2049/02/01 | 0.55% |
| SOUTHERN CALIF GAS CO 5.125-2040/11/15 | 0.55% |
| CONSUMERS ENERGY CO 3.5-2051/08/01 | 0.55% |
| AMEREN ILLINOIS CO 4.15-2046/03/15 | 0.54% |
| AEP TRANSMISSION CO LLC 4.0-2046/12/01 | 0.53% |
| VIRGINIA ELEC & POWER CO 4.0-2043/01/15 | 0.52% |
| DUKE ENERGY CAROLINAS 3.7-2047/12/01 | 0.52% |
| CONNECTICUT LIGHT & PWR 4.0-2048/04/01 | 0.52% |
| ENTERGY LOUISIANA LLC 4.2-2048/09/01 | 0.51% |
| ATMOS ENERGY CORP 6.2-2053/11/15 | 0.51% |
| DOMINION ENERGY SOUTH 5.45-2041/02/01 | 0.50% |
| NORTHERN STATES PWR-MINN 3.4-2042/08/15 | 0.50% |
| PUBLIC SERVICE COLORADO 4.1-2048/06/15 | 0.50% |
| PACIFICORP 4.125-2049/01/15 | 0.49% |
| WESTAR ENERGY INC 4.125-2042/03/01 | 0.49% |
| NORTHERN STATES PWR-MINN 3.6-2047/09/15 | 0.49% |
| PUB SVC NEW HAMP 5.15-2053/01/15 | 0.49% |
| DUKE ENERGY PROGRESS INC 4.1-2042/05/15 | 0.48% |
| CENTERPOINT ENERGY RESOU 5.85-2041/01/15 | 0.47% |
| DOMINION ENERGY SOUTH 5.1-2065/06/01 | 0.47% |
| FLORIDA POWER & LIGHT CO 4.05-2044/10/01 | 0.47% |
| CON EDISON CO OF NY INC 4.3-2056/12/01 | 0.47% |
| FLORIDA POWER & LIGHT CO 3.99-2049/03/01 | 0.47% |
| TAMPA ELECTRIC CO 4.45-2049/06/15 | 0.46% |
| ONCOR ELECTRIC DELIVERY 4.55-2041/12/01 | 0.45% |
| ATMOS ENERGY CORP 4.3-2048/10/01 | 0.45% |
| CONNECTICUT LIGHT & PWR 4.3-2044/04/15 | 0.45% |
| SOUTHWESTERN PUBLIC SERV 4.5-2041/08/15 | 0.45% |
| ENTERGY MISSISSIPPI LLC 3.85-2049/06/01 | 0.44% |
| DUKE ENERGY FLORIDA LLC 4.2-2048/07/15 | 0.42% |
| PUBLIC SERVICE COLORADO 3.6-2042/09/15 | 0.40% |
| DUKE ENERGY CAROLINAS 3.75-2045/06/01 | 0.39% |
| CON EDISON CO OF NY INC 5.5-2055/03/15 | 0.39% |
| DTE ELECTRIC CO 3.95-2049/03/01 | 0.36% |
| PUGET SOUND ENERGY INC 4.3-2045/05/20 | 0.36% |
| UNION ELECTRIC CO 4.0-2048/04/01 | 0.36% |
| NATIONAL RURAL UTIL COOP 4.4-2048/11/01 | 0.35% |
| EVERGY METRO 4.125-2049/04/01 | 0.33% |
| CONSUMERS ENERGY CO 3.25-2046/08/15 | 0.33% |
| UNION ELECTRIC CO 3.9-2042/09/15 | 0.33% |
| LOUISVILLE GAS & ELEC 4.25-2049/04/01 | 0.32% |
| DTE ELECTRIC CO 4.0-2043/04/01 | 0.32% |
| AEP TRANSMISSION CO LLC 3.8-2049/06/15 | 0.31% |
| AEP TRANSMISSION CO LLC 4.5-2052/06/15 | 0.31% |
| FLORIDA POWER & LIGHT CO 4.05-2042/06/01 | 0.31% |
| SIERRA PACIFIC POWER CO 5.9-2054/03/15 | 0.29% |
| EVERGY METRO 5.3-2041/10/01 | 0.28% |
| DUKE ENERGY PROGRESS INC 4.1-2043/03/15 | 0.28% |
| DUKE ENERGY CAROLINAS 4.25-2041/12/15 | 0.27% |
| AMEREN ILLINOIS CO 3.7-2047/12/01 | 0.26% |
| SOUTHWESTERN PUBLIC SERV 3.7-2047/08/15 | 0.26% |
| PUBLIC SERVICE COLORADO 4.05-2049/09/15 | 0.26% |
| PUBLIC SERVICE ELECTRIC 3.65-2042/09/01 | 0.24% |
| SOUTHERN CALIF GAS CO 5.75-2053/06/01 | 0.23% |
| INDIANA MICHIGAN POWER 4.25-2048/08/15 | 0.23% |
| FLORIDA POWER & LIGHT CO 3.95-2048/03/01 | 0.23% |
| DUKE ENERGY OHIO INC 3.7-2046/06/15 | 0.19% |
| ATMOS ENERGY CORP 4.125-2044/10/15 | 0.19% |