If the stock was being hammered by short sellers and nothing was truly wrong with the company, the insiders of the company would step in at a level and start accumulating shares. Since Lehman was not worthy of proping up by insider buying at any price, there is essentially a vacuum under its current price which explains the collapse in prices.
Quote from newguy05:
i am definitly against short ban, but this is utter bullshit. Lehman had a bad balance sheet yes and fuld didnt act aggressively, but it is the shortsellers that killed it without any doubt. If its stock remained at $14 the company would be fine, the shortsellers took it down to $3 in a few days. Which caused the confidence to collapse and with little time to react, its ultimate demise.
If the governments didnt do anything today, morgan stanley would be down 40%, and tomorrow another 40% and it would be done as well. They will then move onto goldman. There is NO FIRM that can withstand these kind of pressure to their stock and survive.