| Name | Ticker | Type | ISIN code |
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| G
| G
| Stock | |
| GABELLI 6.625 PFD A | GGN-A | Stock | |
| GABELLI GLOBAL GOLD, NATURAL RESOURCES & | GGN | Stock | |
| GABELLI GLOBAL UTILITY & INCOME TRUST (T | GLU | Stock | |
| GAD | GAD | Stock | |
| GAINSCO, INC | GAN | Stock | |
| GAMMON GOLD INC | GRS | Stock | |
| GASCO ENERGY, INC | GSX | Stock | |
| GASTAR EXPLORATION LTD | GST | Stock | |
| GAU | GAU | Stock | |
| GAZ | GAZ | Stock | |
| GBB | GBB | Stock | |
| GBF | GBF | Stock | |
| GCE | GCE | Stock | |
| GENERAL EMPLOYMENT ENTERPRISES | JOB | Stock | |
| GENERAL FINANCE CORPORATION | GFN | Stock | |
| GENERAL FINANCE CORPORATION | GFN.U | Stock | |
| GENERAL FIN CORP WTS | GFN+ | Warrant | |
| GENERAL MOLY, INC | GMO | Stock | |
| GENESIS ENERGY, L.P. | GEL | Stock | |
| GENEVA ACQUISITION C | GAC+ | Warrant | |
| GENEVA ACQUISITION CORPORATION | GAC | Stock | |
| GENEVA ACQUISITION CORPORATION | GAC.U | Stock | |
| GEOGLOBAL RESOURCES INC | GGR | Stock | |
| GEOKINETICS INC. | GOK | Stock | |