Bitcoin's supply in loss has reached 40.6%, approaching a key historical bottom pattern. This metric, which indicates the percentage of Bitcoin held below its cost basis, has historically marked major cycle lows when it enters the upper band of its descending trendline. Notably, each new cycle bottom has required a lower percentage of supply in loss, reflecting a maturing market with stronger hands and long-term holders. In past cycles, deep bear-market bottoms saw over 60% of supply underwater, but recent cycles have formed with progressively lower loss thresholds. The current structure suggests that the market may not need such extreme conditions to create buying opportunities. While the current reading indicates significant stress, it is not yet at the historical maximum opportunity zone. A retest of the descending loss-threshold line could signal an attractive accumulation window, as historically, these zones have marked periods of volatility and emotional exhaustion before recovery.