Topping ups... the strategy

I like topping up when people are dumping good stocks.  I have no idea why NXT and SYD are being discarded.  So I have some miners which are heavy losses with no improvement but not worsening either.  I got rid of one today and used the proceed to top up NXT and SYD.

Both are making profits and SYD continues to make good announcements.  Its latest is the changeover of CEO.  The previous one is great but no idea why the new one should usher in a share price fall.  Last December, Sydney Airport was the busiest ever!