BITCOIN SUPPLY ADJUSTED COIN DAYS DESTROYED (CDD) CHART
What is the Bitcoin Supply Adjusted Coin Days Destroyed (CDD) Chart?
BTC supply Adjusted CDD (Coin Days Destroyed) refines the standard CDD metric by dividing it by the circulating supply. This adjustment removes the impact of supply growth, creating a purer, long-term indicator. It measures the economic activity of long-term holders relative to the total supply, offering a clearer signal on HODLer sentiment. High values suggest long-term holders are selling, while low values indicate strong accumulation.
Why CDD needs supply adjustment
Supply-Adjusted Coin Days Destroyed (SA-CDD) normalizes the raw CDD figure by Bitcoin's current circulating supply. Because the total supply of Bitcoin grows over time through mining, raw CDD will naturally be higher in later periods simply because there are more total coin days available to destroy. Dividing by circulating supply removes this growth bias and makes the metric comparable across Bitcoin's entire history.
Separating behaviour from supply growth
SA-CDD isolates the behavioral signal from supply growth noise. When SA-CDD is elevated relative to its historical average, it signals that long-term holders are moving an unusually high proportion of their held supply — a pattern associated with distribution near cycle tops. When SA-CDD is very low, the opposite is true: coins are aging quietly, long-term holders are not selling, and the market is in an accumulation or consolidation phase.
Comparing across Bitcoin's history
The metric is particularly useful for comparing distribution events across different epochs of Bitcoin's history without the distortion that raw CDD introduces. A high CDD reading in 2024 is not directly comparable to a 2016 reading because the 2024 circulating supply is roughly 40% larger. SA-CDD corrects for this, enabling apples-to-apples comparison.
Reading SA-CDD as a trend
SA-CDD works best as a trend indicator rather than a level indicator. Sustained rises above its historical average during a price uptrend signal that experienced holders are using the rally to exit — a caution signal. Sustained lows during a price downtrend signal conviction holding, a historically bullish setup. Pair with NUPL, MVRV Z-Score, and raw CDD for a complete picture of holder behavior.
Frequently Asked Questions
What is Supply-Adjusted CDD?
SA-CDD divides raw Coin Days Destroyed by Bitcoin's circulating supply. Because the total pool of coin days grows automatically as more coins exist and age, the unadjusted figure drifts upward over time regardless of behaviour. Normalising removes that drift.
Why does raw CDD need adjusting?
A CDD reading from 2013 and one from today are not comparable, because there are far more coins in existence now and they have had far longer to accumulate dormancy. Without normalising, later readings look larger purely because the network is older and bigger.
What does an elevated SA-CDD reading mean?
It signals that dormant coins are moving at an unusually high rate relative to the supply that exists, which is generally read as long-term holders distributing. Because it is supply-normalised, an elevated reading means the same thing regardless of which era it occurs in.
How is SA-CDD different from CDD?
They measure the same underlying event, dormant coins moving. CDD reports it as a raw total, while SA-CDD reports it relative to the supply available to move. For comparisons within a few months either works; across years only the adjusted version is meaningful.
Should SA-CDD be read as a level or a trend?
As a trend. Single readings are noisy, and any given day can spike for custodial reasons unrelated to selling. Sustained rises above the historical average during a price advance are the pattern that carries information, rather than any particular threshold.