Volcano Corporation, a developer of intravascular ultrasound and related products for diagnosing heart disease, priced 6.8 million shares at $8, which was below its proposed $10 to $12 range. JPMorgan, Piper Jaffray, Bear Stearns and Cowen & Co. were the underwriters on the deal. Expect the stock to begin trading on the Nasdaq this morning under the symbol "VOLC."
