On Portfolio Overview Summary page when  ‘All Position’ dropdown is selected, it displays the details of the stocks / Mutual Fund schemes which you have ever traded in.

The details available on Summary are 

1. Current Value, Total investment amount 
2. Total unrealized gain /loss till date. You can also view previous day close value of Portfolio and today’s unrealized gain/loss by selecting that option.
3. Apart from this, overall realized gain/loss details are also available.