| Abbreviation | Definition |
|---|---|
| GUZIW | Moto Guzzi Corporation Warrants |
| GVBK | Greenville First Bancshares |
| GVHR | Gevity Human Resources, Inc. |
| GWBK | Gulf West Banks, Inc. |
| GWCL | Gateway Consulting |
| GWIZ | Globespan Technology |
| GWRX | Geoworks Corporation |
| GWTE | Global Wataire, Inc. |
| GWTN | Growth Industries, Inc. |
| GWTR | Global Water Technology, Inc. |
| GYGC | Guyana Gold Corporation (de-listed) |
| GYMB | Gymboree Corporation |
| GYRO | Gyrodyne Company of America, Inc. |
| GYST | Graystone Company, INC. |
| GZBX | Genzyme Biosurgery |
| GZEA | G Z A GeoEnvironment Technology |
| GZMO | Genzyme Molecular Oncology |
| GZPRY | Rao Gazprom |
| GZSP | enzyme Surgical Products |
| GZSP | Genzyme Surgical Products |