For example, if a cryptocurrency has been falling into an area that it held ... can assume that this level was a fair market value for that cryptocurrency.
source https://www.google.com/url?rct=j&sa=t&url=https://www.reddit.com/r/CryptoCurrency/comments/aq0hsy/the_intelligent_cryptocurrency_investor/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNHkZ7vbcDF6HlQHBqegZp4P4rH3CA
