Horzion Line's stock is now trading on the OTC market with new trading symbol (HRZL). Horizon Lines, Inc. (NYSE: HRZ), the nation's leading domestic ocean shipping company, today announced that its common stock will begin trading on the OTCQB Marketplace, effective October 20, 2011. OTC Markets Group Inc. operates the world's largest electronic marketplace for broker-dealers to trade unlisted stocks, including the OTCQB Marketplace. Investors will be able to view the Real Time Level II stock quote, which provides detailed quote information by market maker, for Horizon Lines at http://www.otcmarkets.com under the ticker symbol HRZL. The…