Thanks Loki. That's exactly the way I have been doing (FIFO). Just came up with this self-shorting idea because sometime the time between A and B could be quite lengthy (e.g. 9 months ) and it's worthy to reserve A lot for a 12 month tax concession. If I find some solid answer I will be posting back. Cheers
GRY Price at posting:
16.5¢ Sentiment: Buy Disclosure: Held