Pacific Ethanol Inc. (NASDAQ:PEIX) made a huge comeback last Monday leaping from $3.20 to $5.65, just one week later is back down to $3.79 a share.  Hard to believe this stock was $44.50 in 2006 and this week's fall is due to the dillution of PEIX shares by adding millions more to be shorted on the open market. Kudos Management. Here's the story from Sacbee.com: Pacific Ethanol Inc., seeking to bulk up at a time of slim profit margins, said Friday it has raised $34.25 million through a series of private stock sales. About $5.75 million in preferred stock and warrants were purchased by a group of company executives, including Chairman Bill Jones; Neil Koehler, the president and ...