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ORGANIZATION AND PRINCIPAL ACTIVITIES - Subsidiaries (Parenthetical) (Details) | 12 Months Ended
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Dec. 31, 2024
Up Fintech International Limited |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Ownership percentage | 100.00%
Hangzhou U-Tiger |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Percentage of shares | 85.00%
Percentage of voting interest | 15.00%

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