I bought some shares (ticker code A), and the stock is upgraded to the main board with a new ticker code (code B). The stocks in my portfolio remained under code A and are not updated to the new price under code B.
Now, I want to update the sale of shares which are reflected under code B, and now shows as a negative sale (as I do not have shares held in code B).
How can I resolve the issue please?
Many thanks in advance!