| MCP | Molycorp, Inc. | 6.73 | Stock | Industrial Metals & Minerals | NYQ |
| MCD | McDonald's Corp. | 100.29 | Stock | Restaurants | NYQ |
| FCX | Freeport-McMoRan Copper & Gold Inc. | 30.40 | Stock | Copper | NYQ |
| MCK | McKesson Corporation | 117.31 | Stock | Drugs Wholesale | NYQ |
| MCO | Moody's Corp. | 67.25 | Stock | Business Services | NYQ |
| MCHP | Microchip Technology Inc. | 36.32 | Stock | Semiconductor - Specialized | NMS |
| MDR | McDermott International Inc. | 8.92 | Stock | Heavy Construction | NYQ |
| MUX | McEwen Mining Inc. | 2.31 | Stock | Industrial Metals & Minerals | NYQ |
| MKC | McCormick & Company, Incorporated | 73.83 | Stock | Processed & Packaged Goods | NYQ |
| MCC | Medley Capital Corporation | 14.87 | Stock | Investment Brokerage - National | NYQ |
| MMC | Marsh & McLennan Companies, Inc. | 40.43 | Stock | Insurance Brokers | NYQ |
| MHFI | McGraw Hill Financial, Inc. | 53.45 | Stock | Research Services | NYQ |
| MMR | McMoRan Exploration Co. | 16.78 | Stock | Independent Oil & Gas | NYQ |
| MCY | Mercury General Corporation | 46.08 | Stock | Property & Casualty Insurance | NYQ |
| MCRS | MICROS Systems, Inc. | 42.71 | Stock | Application Software | NMS |
| MCF | Contango Oil & Gas Company | 35.22 | Stock | Independent Oil & Gas | ASE |
| MNI | The McClatchy Company | 2.58 | Stock | Publishing - Newspapers | NYQ |
| BKIA.MC | BANKIA SA | 0.65 | Stock | | MCE |
| CMCO | Columbus McKinnon Corporation | 19.52 | Stock | Farm & Construction Machinery | NMS |
| MCEP | Mid-Con Energy Partners, LP | 24.68 | Stock | Independent Oil & Gas | NMS |