Hi,

I know that volume is the number of BTC or altcoin sold or bought in the period of 24 hours.

But something not logical here.

For example:
I sell 1000 BTC, and someone buy it, the volume under 24 hours is 1000 BTC right now.
What if the buyer of 1000 BTC resell them (The same BTC i sold)?

So 24hours volume will be: 2000 BTC ?
It supposed to be 1000 BTC since only 1000 BTC circulating.


If not, how the volume is calculate exactly ? How trading plateform track BTC if they are sold already or not etc ...

Thank you in advance.