The following fields will be
added to the portfolio/get call and will be returned if you are looking at the authenticated users' portfolio
last_buy => Timestamp of when the last buy occurred UTC
last_buy_shares => Number of shares bought in that transaction
your_shares_held => The number of shares that user holds in you
These fields have been added and are just waiting some testing. Will be rolled out within the next few days if there are no gotchas in the testing.
Cheers
Dups