http://www.forbes.com/feeds/ap/2011/05/12/business-us-spirit-airlines-ipo_8464153.html Spirit Airlines, a low-fare airline that ferries vacationers to the Caribbean and other spots, says it could raise up to $320 million by selling shares to the public. Spirit priced its offering Thursday at $14 to $16 per share for 20 million shares. After expenses, Spirit expects to raise net proceeds of $276.3 million, assuming that it gets the midpoint price of $15 per share. In September, the company filed for an initial public offering that it said then would raise up to $300 million. It plans to list shares on the Nasdaq stock market under the ticker symbol "SAVE."