Although Bitcoin prices have remained above key psychological levels, activity by long-term holders has plunged roughly 50 percent, signaling a marked shift in on-chain behavior. Long-term holders (LTHs) are defined as addresses holding UTXOs older than 155 days, a threshold derived from spending probability curves that separates persistent investors from short-term traders, and this cutoff has become a standard for cohort analysis because holding beyond 155 days statistically correlates with more stable investor behavior and different selling patterns. The decline in LTH transactions is visible in on-chain volumes and in cohort-specific metrics, and it suggests that many holders who might have sold into recent strength are instead remaining patient, which reduces immediate liquidity available to the market. This reduced activity can increase market volatility due to lower available supply during price fluctuations. Approximately 37% of Bitcoin hasn’t moved since December 2017, highlighting the depth of long-term hoarding. Long-term holders currently control approximately 14.7 million BTC, representing about 74 percent of circulating supply as of mid-2025, and this concentration underscores a market structure dominated by accumulation rather than frequent turnover, a dynamic that tends to limit exchange supplies and can amplify price moves if demand unexpectedly increases. The increasing share of supply held by LTHs reflects growing institutional participation and a widespread framing of Bitcoin as digital gold, factors that contribute to market stability by reducing the probability of coordinated, large-scale sell-offs. At the same time, concentrated holdings can pose risks to liquidity during stress events, and market participants should be aware that low on-chain activity does not eliminate the possibility of abrupt supply changes if a cohort decides to mobilize. Spent Output Profit Ratio (SOPR) for LTHs remains above 1, indicating that when these holders do transact they are, on average, realizing profits, and yet the overall volume of those profit-taking transactions has fallen sharply, implying selective or conditional sales based on price targets or strategic considerations. SOPR fluctuations historically precede notable price movements, so the current pattern of elevated SOPR with reduced volumes offers both reassurance about underlying profitability and a cautionary signal that shifts in LTH disposition could materially affect market direction. Recent research-grade indicators such as MVRV Z-Score add further context to valuation and sentiment assessments.
