# Coin Days Destroyed

- [CDD (Coin Days Destroyed)](/guides-and-tutorials/metric-guides/coin-days-destroyed/cdd-coin-days-destroyed.md): Coin Days Destroyed is a measure of economic activity which gives more weight to coins which haven't been spent for a long time.
- [Supply-Adjusted CDD](/guides-and-tutorials/metric-guides/coin-days-destroyed/supply-adjusted-cdd.md): Supply-Adjusted CDD accounts for the impact of time on the Coin Days Destroyed metric.
- [Binary CDD](/guides-and-tutorials/metric-guides/coin-days-destroyed/binary-cdd.md): Binary CDD describes whether Supply-Adjusted CDD on any given day was above or below the historical average.
- [CYD (Coin Years Destroyed)](/guides-and-tutorials/metric-guides/coin-days-destroyed/cyd-coin-years-destroyed.md): Coin Years Destroyed (CYD) takes the rolling sum of coin days destroyed (CDD) over the previous 365-day period as a macro indicator for annual economic activity.
- [Supply-Adjusted CYD](/guides-and-tutorials/metric-guides/coin-days-destroyed/supply-adjusted-cyd.md): Supply-Adjusted CYD accounts for the impact of time on the Coin Years Destroyed metric.
- [Reserve Risk](/guides-and-tutorials/metric-guides/coin-days-destroyed/reserve-risk.md): Reserve Risk is a cyclical indicator that tracks the risk-reward balance relative to the confidence and conviction of long-term holders.