Every Bitcoin cycle has a quiet group of holders who buy into weakness, sit through the volatility, and slowly distribute into strength. Onchain analysts have a way to measure this patient money directly: long-term holder supply. It is one of the most reliable behavioral gauges in the toolkit, and once you understand the simple rule behind it, a lot of cycle dynamics start to make sense.
The 155-day line that defines a long-term holder
Bitcoin coins are tagged by how long they have sat unmoved at their current address. Glassnode’s widely used convention draws the line at 155 days. Coins held longer than that are classified as long-term holder (LTH) supply. Coins held for less are short-term holder (STH) supply.
The threshold is not arbitrary. Statistically, once a coin has been held past roughly five months, the probability that it moves again in the near term drops sharply. In other words, holders who have made it past 155 days have historically shown they are far less likely to sell. The metric encodes that observed stickiness into a clean cutoff.
How LTH supply breathes through a cycle
The most useful thing about LTH supply is its rhythm. It tends to rise through bear markets and accumulation phases, then fall as a cycle matures and tops approach. The mechanics are intuitive once you trace the coins.
During downturns and long sideways grinds, short-term coins bought near the top either get sold at a loss or simply age past 155 days and convert into long-term holder supply. Patient buyers accumulate cheap coins and let them mature. LTH supply climbs steadily, often to cycle highs, precisely when price sentiment is at its worst.
As price runs and euphoria builds, the opposite happens. Long-term holders begin spending coins that have sat for years, transferring them to new short-term buyers. This shows up as a falling LTH supply, the onchain fingerprint of distribution. Late in past cycles, this drawdown in LTH supply has coincided with major tops.
Reading it as a conviction and float gauge
LTH supply is essentially a measure of how much of the network is in strong hands. A high and rising figure means a large share of coins are locked up by holders with demonstrated patience, which thins the sellable float. A declining figure means that conviction supply is being released into the market.
To sharpen the signal, pair the raw supply with profitability and behavior tools:
- LTH-SOPR tells you whether long-term holders are spending at a profit or loss, which adds intent to the supply trend.
- STH-MVRV shows whether the newest buyers, the natural counterparties to LTH distribution, are in profit or underwater.
- HODL waves visualize the same age data as colored bands, giving you the full distribution rather than a single split.
How it pairs with price
The classic narrative reads like this: LTH supply makes new highs during the depths of a bear market, signaling aggressive accumulation, then rolls over and declines as price enters its expansion and blow-off phases. Bottoms have often formed while LTH supply is still climbing or has just peaked. Tops have often formed as LTH supply drops most steeply.
Used this way, the metric is less a timing trigger and more a context layer. It tells you which side of the accumulation-distribution cycle the patient cohort appears to be on, which helps you frame what the price action is likely expressing.
Limitations to respect
The 155-day cutoff is a convention, not a law. A coin that has aged 156 days is treated identically to one held for a decade, even though their owners may behave very differently. Internal transfers, custodial reshuffles, and ETF or exchange wallet movements can shift large blocks of supply across the boundary without reflecting genuine investor intent. And like all cohort metrics, it describes the average behavior of a group, so it can mislead during structural changes such as the rise of spot ETFs, which custody coins on behalf of many different end holders.
Finally, history is a guide, not a promise. The relationship between LTH supply peaks and price bottoms has held across several cycles, but each cycle has been shorter and shallower than the last, and past behavior of patient holders does not guarantee the same timing again.
The bottom line
Long-term holder supply is the onchain signature of patient money: it swells in fear and accumulation, then drains as conviction holders distribute into strength. Read it as a float and conviction gauge rather than a buy or sell button, combine it with LTH-SOPR, STH-MVRV, and HODL waves for intent, and stay mindful of its threshold-based, cohort-level limits.
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