For each coin in a user's portfolio, show what quantity of each coin is held at what basis and date it was acquired. This is very powerful because it helps people realize what trades they can make and what tax impact it will have before they actually do it, for example, to help with tax-loss harvesting.
Example
  • 1 ETH @ 300$ cost basis acquired on December 31, 2018
  • 2 ETH @ 400$ cost basis acquired on February 27, 2019
  • 10 ETH @ 1000$ cost basis acquired on July 3, 2020
  • Total: 13 ETH