IBM announced today that according to technology research firm Gartner, IBM captured the top spot in server sales in the fourth quarter of 2011 and accounted for 1/3 of the total market share during that period. For full year 2011, it captured 30.5% of the overall market share, edging out its closest competitor by 1.5%. Stock rallied over a percent today and broke the important $200 milestone. It was up 7% YTD, outpacing the Dow’s 4%, and up 25% in the last 12 months.