The traditional answer is to wait as a pull-back is to be expected. The stock has varied from ~$1.20 to $3.22 this year alone, and it did drop 25c towards the end of trade today. Today's hysteria was prompted by MLs report, supported by the excellent background for AGO, and iron in general (as outlined in the report).
Very likely tomorrow morning it will drop lower, but I would not expect a large drop.
