Dropping like a rock before earnings....could be a short attack to drive down price or could be somebody knows earnings will disappoint. One ok for longs the later is a indication of things going much lower.
My broker keeps telling me to hold on, but I don't see any significant upside until next year (maybe), and if the report is bad, God help us. My gut is to get out. The previous report was good, and look what happened. Maybe this will look good two years from now, but it's dead money til then in my view.
Good news is volume is low and still have a week ahead of earnings. Also low short positions heading into this sell off. Could be shorts stepping in driving price down systematically on low volume to buy back later after the earnings. If they are bad...they are right...if they are good they will cover as they see fit.