| Abbreviation | Definition |
|---|---|
| CYPHZ | Cytoclonal Pharmaceuticals, Inc. |
| CYPKF | Cryopak Industries, Inc. |
| CYPR | Cypro International |
| CYRD | Cyberecord, Inc. |
| CYRK | Cyrk, Inc. |
| CYSP | Cybershop.Com, Inc. |
| CYSV | Cysive, Inc. |
| CYTC | Cytyc Corporation |
| CYTO | Cytogen Corporation |
| CYTP | Cybertel Communications Corporation |
| CYTR | Cytrx Corporation |
| CYXP | City Xpress.Com Corporation |
| CZFS | Citizens Financial Service, Inc. |
| CZNC | Citizens & Northern Corporation |
| DABR | David's Bridal, Inc. |
| DACG | D A Consulting Group, Inc. |
| DACQ | Dynamic American Corporation |
| DAGM | Dag Media, Inc. |
| DAGR | Daniel Green Company |
| DAIEY | Dai Ei, Inc. |