| Name | Ticker | Type | ISIN code |
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| D
| D
| Stock | |
| DAG | DAG | Stock | |
| DARWIN PROFESSIONAL UNDERWRITE | DR | Stock | |
| DAXOR CORP | DXR | Stock | |
| DBN | DBN | Stock | |
| DBR | DBR | Stock | |
| DBT | DBT | Stock | |
| DBU | DBU | Stock | |
| DCD | DCD | Stock | |
| DCX | DCX | Stock | |
| DDI | DDI | Stock | |
| DDP | DDP | Stock | |
| DEB | DEB | Stock | |
| DEBT RESOLVE INC | DRV | Stock | |
| DECORATOR INDUSTRIES | DII | Stock | |
| DEE | DEE | Stock | |
| DEJOUR ENTERPRISES LTD | DEJ | Stock | |
| DEKANIA CORP | DEK | Stock | |
| DEKANIA CORP | DEK.U | Stock | |
| DEKANIA CP WTS | DEK+ | Warrant | |
| DELAWARE INVESTMENTS ARIZONA MUNICIPAL I | VAZ | Stock | |
| DELAWARE INVESTMENTS COLORADO INSURED MU | VCF | Stock | |
| DELAWARE INVESTMENTS MINNESOTA MUNICIPAL | VMM | Stock | |
| DELAWARE INVESTMENTS NATIONAL MUNICIPAL | VFL | Stock | |
| DELTA APPAREL, INC | DLA | Stock | |