| Abbreviation | Definition |
|---|---|
| MHJ | Muniholdings New Jersey Insured Fund |
| MHR | Magnum Hunter Resources, Inc. |
| MKA | Metrika Systems Corporation |
| MKH | Market 2000+ HOLDRS Trust |
| MLF | Merrill Lynch & Company, Inc. |
| MLH | Merrill Lynch & Company, Inc. |
| MLN | Merrill Lynch & Company, Inc. |
| MLP | Maui Land & Pineapple, Inc. |
| MMD | Moore Medical Corporation |
| MMG | Metromedia International Group, Inc. |
| MMP | Maxim Pharmaceuticals, Inc. |
| MMX | Maxx Petroleum, LTD. |
| MMX | Montana Mills Bread Company |
| MOGA | Moog, Inc. Class A |
| MOGB | Moog, Inc. Class B |
| MPF | Merrill Lynch & Company, Inc. |
| MPF | Merrill Lynch & Company, Incorporated (de-listed) |
| MPLPA | Minnesota Power, Inc. Preferred A |
| MPNPC | Monongahela Power Corporation Preferred C |
| MPX | Marine Products Corporation |