Dormant Bitcoin Hits Record 3.56 Million BTC, Now 17.7% of Circulating Supply

Bitcoin (BTC) that has not moved in over a decade has reached 3.56 million BTC, representing approximately 17.7% of the circulating supply. The figure was reported on August 16 by Darkfost, an analyst at on-chain analytics firm CryptoQuant, in a post on X (formerly Twitter), marking an all-time high. At roughly $63,700 per BTC, approximately $226.8 billion (about ¥36.2 trillion) worth of Bitcoin has effectively vanished from the market.

According to Darkfost, more than 14,000 BTC entered the "unmoved for 10+ years" category in just the last 30 days. "While old BTC occasionally moves, the overall lost supply continues to grow," Darkfost noted, describing it as "a dynamic that naturally reduces circulating supply."

Bitcoin's total issued supply surpassed 20.07 million BTC as of August 2026, meaning approximately 95.6% of the 21 million BTC maximum supply has already been mined. As the theoretical cap approaches, the data highlights that the amount actually moving in the market is even smaller than headline figures suggest.

Dormant BTC Suddenly Moved in July 2025

Not all BTC that has been idle for over a decade is permanently lost. In July 2025, 80,000 BTC from address clusters dormant since 2011 suddenly moved, catching the market by surprise. Darkfost referenced this event while maintaining that the overall trend of growing dormant supply continues.