Boatboy I would say someone knew a margin was called as the buyers knew in advance some shares would have to be sold to cover a debt.For all you know someones own broker sold them out .

Sinclair allways said dont use margin as the mineral market is just too volitile to gamble like that,and the house usually wins in the long run.

Seems like lot of shares are getting straightened out,and once we get a little good news up we go again,but not in a straight line so it wont be easy for margin players once again as that is just pure gambling anyhow.