The sell bubbles show original "purchase" prices (and dates) paid for all

The size of a bubble shows a relative quantity of all spent

E.g. if an investor bought a large number of

If the amount of spent Bitcoin originating from a certain purchase price is smaller than the smallest bubble's threshold (e.g. 250 BTC for N=1d) then it won't be registered on the chart.

Also the bubbles for purchase prices of less than 1 week are ignored due to the fact that coins of this young age are statistically spent daily in big quantities. See Spending Probability charts for more details.

**Bitcoin**spent by the sellers over the last N days.The size of a bubble shows a relative quantity of all spent

**Bitcoin**collectively originating from a given purchase price. The BTC amount represented by a given size varies depending on N, the number of days selling is aggregated for.E.g. if an investor bought a large number of

**Bitcoin**on**31 December 2020**and has sold it**today**then that would result in a large bubble showing up on the price plot for the 31 December 2020.If the amount of spent Bitcoin originating from a certain purchase price is smaller than the smallest bubble's threshold (e.g. 250 BTC for N=1d) then it won't be registered on the chart.

Also the bubbles for purchase prices of less than 1 week are ignored due to the fact that coins of this young age are statistically spent daily in big quantities. See Spending Probability charts for more details.