Bitcoin Constrains Liquid Float to 3.7 Million Coins as 81% of Supply Sits Dormant

Bitcoin's active trading float has tightened to roughly 3.7 million coins out of 19.7 million circulating supply, as River Financial data shows 81% of supply has remained unmoved for at least six months. The supply constriction persists alongside an Inter-exchange Flow Pulse golden cross above its 90-day moving average. BTC trades near $83,970 following a 50% rebound from June 2026 lows. Supply tightness developed as long-term holders accumulated over 3 million BTC since 2020, while retail buyers acquired 107,000 BTC in the third quarter after selling 140,000 BTC in the first half of 2026.