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FAIR VALUE OPTION - Schedule of Fair Value Option (Details) - Galaxy Digital Holdings, LP - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Total | $ 917,757 | $ 472,915
Digital financial assets |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Total | 359,664 | 74,386
Investments |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Total | $ 558,093 | $ 398,529

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