| Abbreviation | Definition |
|---|---|
| PHAA | Pacific Pharmaceuticals |
| PHAR | Pharmanetics, Inc. |
| PHBK | Peoples Heritage Financial Group |
| PHBT | Pure H20 Bio- Tech, Inc. |
| PHCC | Priority Healthcare Corporation |
| PHCM | Phone.Com, Inc. |
| PHEL | Petroleum Helicopters, Inc. |
| PHELK | Petroleum Helicopters, Inc. |
| PHFC | Pittsburgh Home Financial Corporation |
| PHFC | Pittsburgh Home Financial Corporation (de-listed) |
| PHFC | Pittsburgh Home Financial Corporation (de-listed) |
| PHFCP | Pittsburgh Home Financial Corporation Capital Trust I |
| PHFCP | Pittsburgh Home Financial Corporation Capital Trust I (de-listed) |
| PHFCP | Pittsburgh Home Financial Corporation Capital Trust I (de-listed) |
| PHFR | Pharmaceutical Formulations |
| PHGIQ | P H Group, Inc. (de-listed) |
| PHGN | Photogen Technologies, Inc. |
| PHHC | Phoenix Healthcare Corporation |
| PHHH | P H Group, Inc. |
| PHHM | Palm Harbor Home, Inc. |