Morning Market Losers

MGC Diagnostics

shares tumbled 16.09% to $6.83 after the company reported Q3 GAAP loss of $0.21 per share on revenue of $6.60 million. AngloGold Ashanti

declined 12.40% to $13.57 after the company proposed the corporate restructure of international mining operations under a new holding company. GT Advanced Technologies

shares dropped 10.57% to $13.36. Goldman Sachs downgraded GT Advanced Technologies from Buy to Neutral and lowered the price target from $20.00 to $14.00. Coffee Holding Company

shares fell 9.56% to $6.53 on quarterly results. MFRI

declined 9.11% to $11.08 after the company reported Q2 earnings from continuing operations of $0.20 per share on sales of $53.4 million. Crossroads Systems

shares slipped 8.90% to $2.66 after the company reported FQ3 results. Armada Hoffler Properties

dropped 4.66% to $9.20 after the company announced the pricing of public offering of common stock. Krispy Kreme Doughnuts

fell 4.15% to $16.88 after the company posted a weaker-than-expected second-quarter profit. eBay

shares fell 3.43% to $50.92. Analysts at Piper Jaffray downgraded eBay from Overweight to Neutral.