| Abbreviation | Definition |
|---|---|
| DTPIV | Diamond Technology Partners |
| DTPT | atapoint Corporation |
| DTPT | Datapoint Corporation |
| DTPTP | Datapoint Corporation Preferred |
| DTRL | Detroit Legal News Company |
| DTRM | Detour Magazine, Inc. |
| DTRX | Detrex Corporation |
| DTSI | Datron Systems, Inc. |
| DTSXW | Digital Transmission Systems Warrants |
| DTUN | Detroit & Canada Tunnel Corporation (delisted) |
| DUCK | Duckwall Alco Stores, Inc. |
| DUNE | Dunes Hotels & Casinos |
| DUNS | Dunns Supply Store, Inc. |
| DURA | Dura Pharmaceuticals, Inc. |
| DURAW | Dura Pharmaceuticals, Inc. Warrants |
| DURI | Durco International, Inc. (delisted) |
| DUSA | D U S A Pharmaceuticals |
| DVDNF | Demand Ventures, LTD. |
| DVFI | Diversified Industries, Inc. |
| DVID | Digital Video Systems, Inc. |