This year's largest and second-largest initial public offerings now both belong to big data vendors.
IMS Health's IPO raised more than $1.3 billion Friday by selling 65 million shares for $20 apiece. Shares quickly rose to $23 during Friday's trading.
Like Castlight Health, whose $3 billion public offering last month made it the largest IPO this year, IMS Health is a big data vendor — Castlight tracks and sells data on healthcare costs, and IMS Health gathers and sells data on consumers' use of prescription drugs.
The success of these two IPOs suggest investors have recognized the growing importance of big data in healthcare.
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