NASDAQ investigating

Share of DNDN dropped 45% before being halted--prior to their announcement of Provenge results at the AUA. NASDAQ allegedly launched an investigation, according to CNBC. This is an obvious case of stock price manipulation, and some parties will be prosecuted--probably short-sellers looking for an escape from losing positions.

Investors/traders with stop loss orders got taken out--at much lower prices than they planned, and will have legitimate complaints. Whether they can recoup their shares or money is yet to be determined, but this only validates what I have been reiterating all along: never, ever tell your broker what your stop loss limits are--you will be taken out of your position by unscrupulous market makers and large funds. Keep the stop loss in your head. There are numerous stop loss orders, including stop-limit and stop-market orders which you should be aware of, but I will never tell them to my broker, despite conventional wisdom claiming stop-loss orders are necessary for risk management. Often, stop loss orders are disastrous, as today's action in DNDN painfully illustrated.