IMS Health ($IMS) successfully went public last week, raising $1.3 billion in the second biggest U.S. offering of the year. The IPO was priced at $20 a share--above the midpoint of the range--and rose when trading began Friday. IMS' shares closed up 15% on Friday. Most of the cash raised in the IPO will go towards paying off IMS' debt--which was almost $5 billion at the end of the year--and be used for general corporate purposes. Article