SAFEs	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
SAFEs [Abstract]
SAFEs	8. SAFEs On February 14, 2025, in connection with the Closing of the Merger, all SAFE notes held by Fold Predecessor converted into 16.6 million shares of Fold Holdings, Inc. Common Stock. The fair value of the SAFEs on the date of conversion was $177.6 million. Prior to conversion, Fold Predecessor’s SAFEs were recorded as a liability in the accompanying balance sheets and the Company recorded subsequent remeasurements in “Changes in fair value of SAFEs” in the statements of operations. However, because Fold’s SAFEs were structured to be settled via the delivery of common and/or preferred shares upon execution of an equity financing or liquidity event, these amounts were reclassified to equity upon conversion. During the three and six months ended June 30, 2025, the Company recognized an increase in the SAFE liability of $0 million and $6.5 million, respectively, related to fair value remeasurements prior to conversion. As of June 30, 2026 and December 31, 2025, no SAFEs remained outstanding.	9. SAFEs On February 14, 2025, in connection with the Closing of the Merger, all SAFE notes held by Fold Predecessor converted into 16.6 million shares of Fold Holdings, Inc. Common Stock. The fair value of the SAFEs on the date of conversion was $177.6 million. Prior to conversion, Fold Predecessor’s SAFEs were recorded as a liability in the accompanying balance sheets and the Company recorded subsequent remeasurements in “Changes in fair value of SAFEs” in the statements of operations. However, because Fold’s SAFEs were structured to be settled via the delivery of common and/or preferred shares upon execution of an equity financing or liquidity event, these amounts were reclassified to equity upon conversion. As of and for the years ended December 31, 2025 and December 31, 2024, the fair value of the SAFEs was $0 and $171.1 million, respectively. The remeasurement of the SAFEs due to change in fair value resulted in an increase in the liability of $7.2 million and $88.4 million during the year ended December 31, 2025 and 2024, respectively. Refer to Note 15 for further details on the fair value measurement of the SAFEs. During the year ended December 31, 2024, Fold Predecessor entered into SAFEs with various investors with aggregate gross proceeds of $72.1 million. Three of the SAFEs (the “Bitcoin SAFEs”) issued during 2024, totaling $64.1 million, were funded with bitcoin that the Company held in treasury as of December 31, 2025.

SAFEs

6 Months Ended

12 Months Ended

Jun. 30, 2026

Dec. 31, 2025

8. SAFEs

On February 14, 2025, in connection with the Closing of the Merger, all SAFE notes held by Fold Predecessor converted into 16.6 million shares of Fold Holdings, Inc. Common Stock. The fair value of the SAFEs on the date of conversion was $177.6 million. Prior to conversion, Fold Predecessor’s SAFEs were recorded as a liability in the accompanying balance sheets and the Company recorded subsequent remeasurements in “Changes in fair value of SAFEs” in the statements of operations. However, because Fold’s SAFEs were structured to be settled via the delivery of common and/or preferred shares upon execution of an equity financing or liquidity event, these amounts were reclassified to equity upon conversion.

During the three and six months ended June 30, 2025, the Company recognized an increase in the SAFE liability of $0 million and $6.5 million, respectively, related to fair value remeasurements prior to conversion. As of June 30, 2026 and December 31, 2025, no SAFEs remained outstanding.

9. SAFEs

As of and for the years ended December 31, 2025 and December 31, 2024, the fair value of the SAFEs was $0 and $171.1 million, respectively. The remeasurement of the SAFEs due to change in fair value resulted in an increase in the liability of $7.2 million and $88.4 million during the year ended December 31, 2025 and 2024, respectively. Refer to Note 15 for further details on the fair value measurement of the SAFEs.

During the year ended December 31, 2024, Fold Predecessor entered into SAFEs with various investors with aggregate gross proceeds of $72.1 million. Three of the SAFEs (the “Bitcoin SAFEs”) issued during 2024, totaling $64.1 million, were funded with bitcoin that the Company held in treasury as of December 31, 2025.