Here's my little analysis of Acasti. This is purely off technical analysis and nothing related to the news.
This is the monthly chart. As you can see we are trading in between two parallel lines which usually signifies a countertrend movement and is good news for higher prices. However on the smaller time frame, it looks like we are trading within a expanding triangle (the megaphone shape), which is a bearish pattern. On the 4 hour chart we are also in a bearish head and shoulders pattern. Prices may want to retest the lower support (red line). If prices bounce there, that is the perfect time to buy and hold until about $1.54. If prices can break above the top of the expanding triangle, you can continue to hold. Overall this one looks like a really got stock with lots of potential, if it can hold above the support line and break out of the green resistance.