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S&P Downgrades Horsehead Holding (ZINC) to 'SD' Amid Missed Payment Jan 21, 2016 09:44AM
FBR Capital Upgrades Horsehead Holding (ZINC) to Outperform Oct 7, 2014 08:30AM
FBR Capital Downgrades Horsehead Holding (ZINC) to Market Perform Jul 8, 2014 06:25AM