Venture capital firms are having their biggest fundraising year in a decade, signaling a potentially robust climate for the high-valuation private companies known as "unicorns."
U.S.-based VC firms collected $12 billion in the first quarter, a 59 percent increase from the same period a year ago and the biggest raise since the second quarter of 2006, which saw $14.3 billion, according to numbers from Thomson Reuters and the National Venture Capital Association.
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