From the looks of the chart and news dating back to where it tanked, the said companies desiring the merger, shorted the hell out of it (reason why it tanked) and well, DISK must have found out about it, and well...terminated the agreement saying "The Image Entertainment Board of Directors has determined that the company is best served by terminating the merger agreement and the constraints it imposes on Image. Image granted numerous requests made by BTP to extend the closing date to allow BTP the time to finalize the required financing for the merger."
Fishy IMO...they were gonna try and short it more so they finance the merger. IMO of course.