A snapshot of your portfolio balance has been made every 24 hours. This data is recorded and displayed by a histogram chart in your Statistics section. This helps you keep track of the historical data and general performance of the portfolio through time. By clicking on each data point you can see a snapshot of all exchanges, wallets and currencies held at the time of the shot.
By clicking on each data point you can see a detailed list of crypto assets present at that point in time. Furthermore you can select data ranges for a specific period of time and export data as needed.