Bitcoin miners slash OTC holdings 72% as supply squeeze tightens

Bitcoin miners have reduced their over-the-counter holdings by 72% to 139,700 BTC, the lowest since November 2021, CryptoQuant data shows.

"Miners have been drawing down inventory steadily without rebuilding after the 2024 halving, which means the pool of coins available for large off-exchange sales has shrunk significantly," Axel Adler Jr., on-chain analyst at CryptoQuant, said.

The decline from 500,000 BTC in November 2021 represents a net reduction of 360,300 coins over more than four years. The drawdown accelerated after Bitcoin's fourth halving in April 2024, which cut block rewards to 3.125 BTC and compressed miner margins. Exchange outflows totaled $686 million on July 20 alone, with Binance recording $570 million in net withdrawals — its largest single-day outflow since April, per CryptoQuant.

The shrinking inventory removes one of the largest sources of potential sell pressure in the Bitcoin market. If demand from spot buyers and ETF inflows continues to absorb the declining tradable float, the supply imbalance could amplify upward price moves in the coming quarters.

Exchange Reserves Reinforce the Squeeze

The tightening extends beyond miner desks. Centralized exchange balances have been declining in tandem, with $686 million in net outflows on July 20 led by Binance ($570 million), Bybit ($65 million), and Coinbase ($48 million), per CryptoQuant. As coins leave exchange wallets, the pool available for spot-market selling contracts further. The coordinated nature of the withdrawals — spanning multiple major platforms — suggests institutional accumulation rather than retail activity.

Long-term holders are not stepping in to fill the gap. Coin Days Destroyed, a metric measuring how many days' worth of old coins move into circulation, remains flat at 16.4 million, indicating that dormant holdings are staying put. Brief upticks in CDD have failed to develop into sustained distribution, per CryptoQuant. This means older coins remain largely unliquidated regardless of changing market conditions.

What the Supply Squeeze Means for Price

With miner selling capacity reduced and exchange inventories declining, the burden of price discovery shifts to fresh spot demand. Bitcoin's price has already advanced as OTC inventories fell, suggesting the market is absorbing the tighter supply. The next leg higher depends on whether institutional inflows — particularly through spot ETFs — can sustain momentum against a shrinking tradable float.

The 72% drawdown in miner OTC holdings since November 2021 removes one layer of overhead supply that has historically weighed on Bitcoin during bear markets. While other sources of sell pressure remain — including long-term holder distribution and macroeconomic headwinds — the structural reduction in miner-linked inventory represents a meaningful shift in market architecture. If demand continues strengthening, reduced exchange liquidity could amplify Bitcoin's upside sensitivity in the months ahead.

This article is for informational purposes only and does not constitute investment advice.