$PBS closed down 2.56 percent on Thursday, August 6, 2015, on 4.24 times normal volume. The stock fell below its 200 day moving average, damaging its long-term outlook by crossing under that critical trendline. Note that the stock is in oversold territory based on its Slow Stochastic indicator (14, 3, 3) -- sideways movement or a bounce should not be unexpected.