Bitcoin Long-Term Holder Supply Reaches Record 15 Million BTC, Fidelity Reports

The supply of Bitcoin held by long-term investors has climbed to an all-time high, according to fresh data analyzed by Bitcoin World from Fidelity Digital Assets. Approximately 15 million BTC — representing coins that have not moved on-chain for at least 155 days — now sit in the wallets of committed holders. Notably, around 40% of that supply is currently underwater, sitting at an unrealized loss.

What the Data Reveals About Investor Conviction

Zack Wainwright, a research analyst at Fidelity Digital Assets, told BeInCrypto that the behavior of long-term holders serves as one of the clearest on-chain signals of genuine investor conviction. He noted that current levels are approaching those observed near the bottom of previous market cycles, suggesting that many holders are choosing to accumulate or hold through the downturn rather than sell at a loss.

The metric, which tracks coins that have remained stationary for at least 155 days, is widely followed by on-chain analysts as a gauge of market sentiment. When long-term holder supply rises during a price decline, it often indicates that the most resilient participants see current prices as undervalued. Conversely, a drop in this metric can signal distribution and potential tops.

Context and Market Implications

The record high of 15 million BTC represents roughly 76% of the total circulating supply of 19.6 million coins. That means more than three-quarters of all Bitcoin in circulation is now held by entities that have not transacted in over five months. This level of dormancy is historically associated with late-stage bear markets or early accumulation phases.

Fidelity’s analysis aligns with broader on-chain data from sources like Glassnode and CoinMetrics, which have also tracked rising long-term holder supply throughout 2024 and into 2025. The fact that 40% of these holdings are at an unrealized loss adds a layer of nuance: it suggests that even investors who bought near previous peaks are choosing to hold rather than capitulate.

Why This Matters for Readers

For market participants, the combination of record holder supply and significant unrealized losses creates a dynamic where selling pressure from the most committed cohort remains low. If price begins to recover, these holders may become profitable, potentially reducing the supply of coins available on exchanges — a scenario that could contribute to upward price momentum.

However, it is important to note that on-chain metrics are lagging indicators. They reflect past behavior, not future price direction. While the data is historically bullish in context, it does not guarantee immediate price appreciation.

Conclusion

The record high in Bitcoin long-term holder supply, as reported by Fidelity Digital Assets, reinforces a narrative of strong conviction among a significant portion of the market. With 15 million BTC dormant and 40% of that position underwater, the data suggests that many investors are betting on a longer time horizon. Whether this signals a market bottom or simply a patient wait for better prices remains to be seen, but the signal is one that on-chain analysts will continue to watch closely.

FAQs

Q1: What defines a Bitcoin long-term holder?
Fidelity defines long-term holders as addresses where coins have not moved for at least 155 days. This threshold is commonly used in on-chain analysis to separate active traders from investors with a longer time horizon.

Q2: Why is 40% of long-term holder supply at an unrealized loss significant?
It indicates that many committed investors bought at higher prices and are currently holding at a loss. Historically, high unrealized losses among long-term holders have coincided with market bottoms, as these investors tend to hold rather than sell during downturns.

Q3: Does this data guarantee a price increase?
No. On-chain metrics are descriptive, not predictive. While rising long-term holder supply during a downturn has historically preceded recoveries, it does not guarantee future price movements. Market conditions, macroeconomic factors, and regulatory developments also play significant roles.