SunPower Corp. (SPWR) announced that revenue for the fourth quarter ended December 31, 2005, was $29.3 million, up 34% from the prior quarter’s revenue of $21.9 million and up 523% from the year-ago fourth quarter combined(1) revenue of $4.7 million. The Company’s fiscal 2005 revenue was $78.7 million. [ more ] These 4th quarter earnings have narrowed the companies losses and they expect significant quarter-on-quarter top line revenue increases to between $38 – $40 million. The stock gapped up 8% this morning on the news and is starting to give back most of these gains. It is currently trading with a gain of 3.8%. Update: Shares of SunPower closed the day with a nice 17% gain. Ya gotta love that.