| Schedule of Investments [Text Block] |
iShares® Bitcoin Trust ETF
Schedules of Investments (Unaudited)
At March 31, 2025 and December 31, 2024
| Description | | Quantity | | | Cost | | | Fair Value | |
| Bitcoin | | | 576,038 | | | $ | 40,686,575,306 | | | $ | 47,785,797,093 | |
| | | | | | | | | | | | | |
| Total Investments – 100.02% | | | | | | | | | | | 47,785,797,093 | |
| Other Assets Less Liabilities – (0.02)% | | | | | | | | | | | (10,299,701 | ) |
| Net Assets – 100.00% | | | | | | | | | | $ | 47,775,497,392 | |
| Description | | Quantity | | | Cost | | | Fair Value | |
| Bitcoin | | | 551,918 | | | $ | 37,372,942,571 | | | $ | 51,530,013,513 | |
| | | | | | | | | | | | | |
| Total Investments – 100.02% | | | | | | | | | | | 51,530,013,513 | |
| Other Assets Less Liabilities – (0.02)% | | | | | | | | | | | (10,446,966 | ) |
| Net Assets – 100.00% | | | | | | | | | | $ | 51,519,566,547 | |
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