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  • Indicator Overview
  • How is it measured?
  • About
  • Coined By
  • Further Resources
  1. Guides & Tutorials
  2. Metric Guides
  3. Coin Days Destroyed

Supply-Adjusted CYD

Supply-Adjusted CYD accounts for the impact of time on the Coin Years Destroyed metric.

PreviousCYD (Coin Years Destroyed)NextReserve Risk

Last updated 5 months ago

Indicator Overview

Supply-Adjusted CYD accounts for the impact that coin day accumulation by the total supply has on the metric. As more coins are issued and more coin days are accumulated by the aggregate network, the lower bound of coin days destroyed will increase over time.

This results in a steadily rising 'floor value' and potential for higher 'peak values' of CYD over time. Therefore additional consideration is required in analysis to accurately compare measurements from different points in time. Adjusting for supply aims to provide a more proportional and equivalent view of indicator values over the history of the market.

The rationale behind supply adjustment is as follows:

  • Early in a protocol's life, coin supply is small and so is the aggregate accumulated lifespan and thus the required adjustment is larger to scale up in line with more recent values.

  • Later in a protocol's life, coin supply is larger and so is the aggregate accumulated lifespan so the required adjustment is smaller relative to recent values.

In general, horizontal levels and values in supply adjusted metrics are likely to more consistent over time than those for the base metric. The trends, fractals and interpretation remain consistent between both the original metric and supply adjusted variants.

How is it measured?

Supply-Adjusted CYD simply divides CYD by the circulating supply (total amount of coins issued).

Supply-Adjusted CYD=CYDTotal Supply=∑(value⋅lifespan [days]) (over last 365-days)value (of all UTXOs)\begin{align*} \textrm{Supply-Adjusted CYD} &= \frac{\textrm{CYD}}{\textrm{Total Supply}} \\[0.5em] &=\frac{ \sum(\textrm{value} \cdot \textrm{lifespan}~{\color{gray}{[\textrm{days}]}})~{\color{gray}{\textrm{(over last 365-days)}}} }{ \textrm{value}~{\color{gray}{\textrm{(of all UTXOs)}}} } \end{align*}Supply-Adjusted CYD​=Total SupplyCYD​=value (of all UTXOs)∑(value⋅lifespan [days]) (over last 365-days)​​

About

Coined By

Further Resources

, and Glassnode (April 2021)

by Ark Invest and David Puell

📖
View Supply-Adjusted CYD in Glassnode Studio
View Supply-Adjusted CYD in Glassnode API Docs
Ark Invest
David Puell
Buyer and Seller Behavior: Analyzing Bitcoin’s Fundamentals
Coin Years Destroyed
Bitcoin: Supply-Adjusted Coin Years Destroyed