A Morning Quick Hitter Worth Watching

ACHN is a big mover this morning, the top trending ticker on Stocktwits as I write this. 

While the daily chart is a bit sloppy for my taste to swing overnight, day-traders may find it useful o watch the $12.80 level, just above, today to see if the stock can make a run at $13.08. 

At that point, you can see the upper light blue line on the 30-minute chart, below, tells the story of a potential gap-fill much higher to last week's large gap lower. 

A move under $12.30 today would be a signal of caution, perhaps even a quick short opportunity.