Any one trading the biotecs for any length of time has had this happen to them. Mental stops only on these. Sometimes a violent rundown signals that good news is coming as the crooks maneuver to get the cheapest price before the news. People in this business are here to make money not friends. Good example look the chart of APDN last week and today. They ran it down to below .20 and then took it back to .23 on no news, yet.