AEZS Only news I saw was a Mar 20th announcement of 4thQtr and Full year financials. From the looks *thus far* this was purely a chart play, with this being up 14% yesterday on huge volume and down 10% on good volume as I write. MMs volume coo?
Hard to say how much is mere profit taking and folks tightening stops then having a whipsaw and the stops ripped out.