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| Underlying Name | Symbol | Option Symbol(s) | Option Chain |
|---|
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| M&t Bank Corp. | MTB | MHB, MTB, MZK, OKB, YMT |  |
| M.d.c. Holdings, Inc. | MDC | MDC, ZLW | |
| Macerich Company | MAC | MAC | |
| Mack-Cali Realty Corp. | CLI | CLI | |
| Macy's Inc. | M | M, MCQ, VFD, WDF | |
| Magellan Health Services, Inc. | MGLN | MJU | |
| Magellan Midstream Partners, L.p. | MMP | JGX, MMP | |
| Maguire Properties, Inc. | MPG | MPG | |
| Manitowoc Company, Inc. | MTW | MTW, TGW, VMT, YLD | |
| Mannkind Corporation | MNKD | LWH, MWU, ZLD | |
| Manpower Inc. | MAN | MAN | |
| Mantech International Corp | MANT | UUN | |
| Manulife Financial Corp. | MFC | MFC | |
| Marathon Oil Corporation | MRO | MRO, MWX, VXM, WXM | |
| Mariner Energy, Inc. | ME | ME | |
| Market Vector Junior Gold Miners Etf | GDXJ | NDJ | |
| Markwest Energy Partners, Lp | MWE | MWE | |
| Marriott Intl Inc. (new) | MAR | MAR, TQJ, VRR, WXA | |
| Marsh & Mclennan Cos | MMC | MMC | |
| Marshall & Ilsley Corporation (new) | MI | LGP, MI, ZBI | |
| Martek Biosciences Corp | MATK | KQT | |
| Martha Stewart Living | MSO | MSO | |
| Martin Marietta Materials | MLM | LIG, LSU, MBZ, MLM, ZOI | |
| Marvel Entertainment, Inc. | MVL | MVL, VTQ | |
| Marvell Technology Group Ltd | MRVL | OZL, ULJ, UVM, YZQ | |
| Masco Corporation | MAS | MAS, VMQ, YAC | |
| Massey Energy Company | MEE | MEE, MQO, MVD, VHK, YBH | |
| Mastec, Inc. | MTZ | MTZ | |
| Mastercard Incorporated | MA | GSY, LUE, MA, MAL, ZUE, ZXV | |
| Mattel, Inc. | MAT | MAT, VXW, YEN | |
| Maxim Integrated Products | MXIM | XIQ, YEO, ZXB | |
| Mbia Inc. | MBI | MBI, MDJ, VMX, YBU | |
| Mcafee, Inc. | MFE | MFE, VNE, WNE | |
| Mcdermott International | MDR | MDR, MVN, OYZ, YAE | |
| Mcdonalds Corporation | MCD | MCD, MEF, VMD, WMN | |
| Mcgraw-Hill Companies Inc | MHP | MHP, VMP, WMP | |
| Mckesson Corporation | MCK | MCK, PUV, VHG, YRG | |
| Mcmoran Exploration Co. | MMR | LRE, MMR, OPT | |
| Mead Johnson Nutrition Company | MJN | MJN | |
| Meadwestvaco Corp | MWV | MWV | |
| Mechel Oao | MTL | LZH, MTL, ZLM | |
| Medco Health Solutions, Inc. | MHS | MHS, VQM, YXM | |
| Medicines Co | MDCO | MQL | |
| Medicis Pharmaceutical | MRX | MRX, ORX, WEO | |
| Medifast, Inc. | MED | MED | |
| Medivation, Inc. | MDVN | QMD, VOW, YWO | |
| Medtronic, Inc. | MDT | JIW, MDT, VKD, WKV | |
| Melco Crown Entertainment Limited | MPEL | KOJ, NBQ, XOJ | |
| Memc Electric Materials Inc. | WFR | CJC, WFR, ZET, ZYG | |
| Mercado Libre, Inc | MELI | OVQ, QMB, WCX, ZMV | |
| Merck & Co., Inc. | MRK | MRK, MZR, VMK, WMR | |
| Merck & Co., Inc. (new) | MRK | PGQ, VAG | |
| Mercury Computer Systems Inc | MRCY | QYR | |
| Meridian Bioscience Inc | VIVO | ZUG | |
| Meritage Homes Corporation | MTH | MTH, XMK | |
| Metabolix, Inc. | MBLX | UQL | |
| Methanex Corp | MEOH | QPN | |
| Metlife, Inc. | MET | JAJ, MET, VRA, YDL | |
| Metropcs Communications, Inc. | PCS | PCS | |
| Mf Global Ltd. | MF | MF, ZHT | |
| Mgic Investment Corp. | MTG | MTG | |
| Mgm Mirage | MGM | MGM, MTQ, VYG, YDM | |
| Microchip Technology Inc | MCHP | LJM, QMT, ZPH | |
| Micron Technology, Inc. | MU | MU, VGY, WGY | |
| Microsoft Corp | MSFT | MQF, MSQ, VMF, WMF | |
| Mid-America Apartment | MAA | MAA | |
| Millicom International Cellula | MICC | CQD, FJM, ZJH | |
| Millipore Corporation | MIL | MIL | |
| Mindray Medical International Limited American Depositary Shares (one Class A ordinary share, Hk $.0001 par value) | MR | MR | |
| Minefinders Corporation Ltd. | MFN | MFN | |
| Mirant Corporation | MIR | LGV, MIR, ZOD | |
| Mitsubishi Ufj Financial group, Inc. | MTU | MTU | |
| Mobile Telesystems Ojsc | MBT | MAJ, MBT, MGR, OVD, YBP | |
| Mohawk Industries, Inc. | MHK | MDL, MHK, XVV, YVE | |
| Molson Coors Brewing Company Class B | TAP | OIF, TAP | |
| Momenta Phamaceuticals, Inc. | MNTA | OJA, QMP | |
| Monarch Casino & Resort Inc | MCRI | QIK | |
| Monsanto Company | MON | MFP, MON, VAB, WNU | |
| Monster Worldwide Inc | MWW | MWW, OWP, YBF | |
| Moodys Corporation | MCO | MCO, MYW, OWC, YPJ | |
| Morgan Stanley | MS | MFZ, MKX, MS, VWD, WWD | |
| Morningstar, Inc. | MORN | QMR | |
| Motorola, Inc. | MOT | MOT, VMA, WMA | |
| Msci, Inc. | MXB | MXB | |
| Mueller Water Products, Inc. | MWA | MWA | |
| Murphy Oil Corp. | MUR | MUR, MUU, OBY, YZS | |
| Mylan Inc. | MYL | MYL, OKL, WYQ | |
| Myriad Genetics Inc | MYGN | GSQ, VBV, VKU, YDG, YSE, ZPQ, ZQG | |
| Contract Specification |
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