RE:RE:RE:Wow, a substantial short position on this one...Good point.
Even the proposed underwriter of a pp could be shorting the stock if they believe the market in the future may be softer. They would then make their money on the short side, do the u/w and then cover. This happens most often with penny stocks.
Or it could be as simple as a plain short attack. They don't even have to have a reason. If they suspect management at DR is not savy enough to handle such an attack they would go for it.. Its risky but shorts can have a lot of power, at least at the initial stage of the attack.