| | American Energy Partners Inc | Utilities - Regulated Water | Utilities | -18.03 | -18.03 | -68.45 | -80.00 | -79.25 | -88.89 | -96.16 | -96.88 |
| | Applied Energetics Inc | Aerospace & Defense | Industrials | -1.05 | -5.05 | -2.59 | -0.53 | -10.05 | -27.97 | -11.32 | 155.78 |
| | Aerius | Shell Companies | Financial Services | 0.00 | 0.00 | -56.25 | -30.00 | -30.00 | -47.50 | -67.69 | -92.50 |
| | Atlantic Energy Solutions Inc | Shell Companies | Financial Services | 65.00 | 76.00 | 14.78 | 65.00 | 129.57 | 101.53 | -2.22 | -49.33 |
| | Aether Global Innovations Corp | Security & Protection Services | Industrials | -9.95 | -11.95 | -30.00 | 39.63 | -16.67 | -58.50 | -58.50 | -58.50 |
| | Arc Resources Ltd | Oil & Gas E&P | Energy | 0.65 | 2.68 | 3.91 | 11.65 | 20.70 | 64.39 | 31.97 | 151.96 |
| | Atos S.A. | Information Technology Services | Technology | 0.00 | 0.00 | -15.94 | -28.06 | -70.88 | -87.47 | -93.06 | -97.22 |
| | Atos ADR | Information Technology Services | Technology | -4.44 | -2.48 | 5.24 | -13.16 | -64.61 | -86.60 | -91.75 | -96.75 |
| | ADDvantage Technologies Group Inc | Electronics & Computer Distribution | Technology | 0.00 | 26.32 | 20.00 | -14.29 | -22.08 | -22.08 | -22.08 | -22.08 |
| | African Rainbow Minerals Ltd | Other Industrial Metals & Mining | Basic Materials | 0.00 | 2.99 | 17.48 | 43.68 | 28.21 | 9.26 | -18.46 | -5.10 |
| | African Discovery Group Inc | Conglomerates | Industrials | 0.00 | 5.49 | 0.00 | -16.67 | -28.57 | -47.37 | -90.00 | -95.90 |
| | American Future Fuel Corp | Other Industrial Metals & Mining | Basic Materials | -2.38 | -2.38 | -0.24 | 27.52 | 7.60 | 24.52 | -29.05 | -29.05 |
| | Affiliated Resources Corp | Shell Companies | Financial Services | 1.72 | 2.08 | 17.06 | 391.67 | 333.82 | 227.78 | 821.88 | 1,375.00 |
| | AmTrust Financial Services Inc 7.25 Sub. Notes 2055 | Insurance - Property & Casualty | Financial Services | 0.00 | -1.56 | 0.32 | 1.29 | 0.00 | 1.61 | -12.50 | -25.18 |
| | AmTrust Financial Services Inc 7.5 Sub. Notes 111555 | Insurance - Property & Casualty | Financial Services | 0.00 | 0.00 | 0.00 | 1.59 | 0.00 | 0.00 | -11.11 | -25.58 |
| | Affluence Corp | Telecom Services | Communication Services | -15.97 | 9.89 | -23.08 | 13.64 | 11.11 | -42.86 | -72.38 | -96.97 |
| | Affymax Inc | Biotechnology | Healthcare | 0.00 | 0.00 | 0.00 | -66.67 | 16.67 | -82.93 | -88.71 | -98.92 |
| | Agfa-Gevaert N.V. ADR | Specialty Industrial Machinery | Industrials | 0.00 | 0.00 | 0.00 | 8.33 | 8.33 | 8.33 | -60.24 | -73.47 |
| | AFC Energy Plc | Electrical Equipment & Parts | Industrials | -8.64 | 3.03 | 31.13 | 61.70 | 75.33 | 60.86 | -9.33 | -64.69 |
| | Atlas Financial Holdings Inc | Insurance - Property & Casualty | Financial Services | 0.00 | 0.00 | -63.64 | -96.00 | 33.33 | -98.86 | -99.80 | -99.92 |
| | Acutus Medical Inc | Medical Devices | Healthcare | -7.52 | -2.63 | -70.40 | -78.00 | -81.51 | -94.78 | -93.59 | -99.71 |
| | Armstrong Flooring Inc | Building Products & Equipment | Industrials | 0.00 | 0.00 | -98.00 | 19,900.00 | 100.00 | -80.00 | -99.89 | -99.89 |
| | Air France-KLM ADR | Airlines | Industrials | 2.73 | 0.89 | 4.63 | -6.61 | -11.02 | -35.80 | -68.52 | -80.48 |
| | Alphamin Resources Corp | Other Industrial Metals & Mining | Basic Materials | -0.59 | -1.26 | -8.38 | 25.55 | 36.48 | 35.14 | -0.83 | 39.22 |
