The amount of bitcoin BTC$63,729.63 supply in loss reached a key bear-market threshold, surpassing 10 million BTC, more than half of the total in circulation. According to Glassnode data, at a one-hour resolution, the number peaked at about 10.5 million BTC as the price fell to as low as $61,300 on Thursday. Total circulating supply is roughly 20 million BTC, so more than half of all coins are currently held at an unrealized loss.