In times of volatility, perspective is an important commodity.
Take a share like Amazon, for example- since it's listing in 1997, it has soared from US$3.19, to $746. That's somewhere around 47,000%. That's a pretty good return. However, along the way it had pullbacks of 57%, 94% (tech wreck), 56% and 60%.
One guy, David Gardner, who amazingly held through all of that, put it this way:
"It's mostly looking at the business, not the stock. ... I think a lot of the world doesn't think about things that way. Every time I watch financial television ... I'm reminded again of how people are thinking too much about stocks; wigs, wags, and short-term moves, and they're not really looking at the business. While Amazon's stock dramatically declined over that period, the business did not nearly ."
http://www.********/investing/2016/06/26/amazon-stocks-history-the-importance-of-patience.aspx
So the thing to ask is, have the fundamentals for ACX improved or worsened recently? Demonstrably, they have improved. So what has been driving the sp recently? Clearly, a concerted short attack, combined with what really amounts to sp manipulation (short & distort). That will obviously pass.