Fusion-io, which offers a next generation storage memory platform that boosts data access speeds, raised the proposed price range for its upcoming IPO on Tuesday. The company now plans to price its 12.3 million share IPO between $16 and $18, up 21% from the previous $13-$15 range. Fusion-io, which was founded in 2005 and booked $136 million in sales for the 12 months ended March 31, 2011, plans to list on the NYSE under the symbol FIO. Goldman, Sachs & Co., Credit Suisse, and Morgan Stanley are the lead underwriters on the deal. It is expected to price during the week of June 6.