This is the way AZA has traded for many weeks.
Just when you think it looks strong, the buying depth disappears with someone selling off screen and it looks weak again.
There is no guarantee this pattern will change as there could be a few holders around with cheap stock from the IPO and using current strength to get out.
However AZA still climbing gradually and should continue to do so into drilling, but it is a bit of a schitzo stock.
acturtle