| 持股明細(資料日期：2026/06/30) |
| 持股名稱 | 比例 |
| KIOXIA HOLDINGS CORP | 7.84% |
| Sandisk Corp/DE | 7.37% |
| ADVANCED MICRO DEVICES | 6.35% |
| MURATA MANUFACTURING CO LTD | 5.97% |
| Ibiden Co Ltd | 5.95% |
| CORNING | 5.17% |
| SAMSUNG ELECTRO-MECHANICS CO | 4.56% |
| MARVELL TECHNOLOGY GROUP LTD | 3.62% |
| NVIDIA CORP | 3.24% |
| NITTO BOSEKI CO LTD | 3.23% |
| FUJIKURA | 3.12% |
| UNION TOOL CO | 2.81% |
| CIENA CORP | 2.78% |
| Sumitomo Electric Industries Ltd | 2.34% |
| COHERENT CORP | 2.24% |
| 台積電 | 2.15% |
| MITSUI MINING & SMELTING CO | 2.12% |
| LUMENTUM HOLDINGS INC | 2.09% |
| APR CORP/KOREA | 2.01% |
| SUMCO | 2.01% |
| Lasertec Corp | 1.99% |
| DALBA GLOBAL CO LTD | 1.99% |
| ASTERA LABS INC | 1.96% |
| Micron Technology Inc | 1.87% |
| SHOWA DENKO K K | 1.77% |
| TAIYO YUDEN CO LTD | 1.61% |
| MEIKO ELECTRONICS CO.,LTD. | 1.55% |
| LAM RESEARCH CORP | 1.40% |