| Abbreviation | Definition |
|---|---|
| PRY | Pittway Corporation of Delaware |
| PRYA | Pittway Corporation of Delaware Class A |
| PSA | Public Storage, Inc. |
| PSAPA | Public Storage, Inc. Preferred A |
| PSAPB | Public Storage, Inc. Preferred B |
| PSAPC | Public Storage, Inc. Preferred C |
| PSAPD | Public Storage, Inc. Preferred D |
| PSAPE | Public Storage, Inc. Preferred E |
| PSAPF | Public Storage, Inc. Preferred F |
| PSAPG | Public Storage, Inc. Preferred G |
| PSAPH | Public Storage, Inc. Preferred H |
| PSAPJ | Public Storage, Inc. Preferred J |
| PSAPK | Public Storage, Inc. Preferred K |
| PSAPL | Public Storage, Inc. Preferred L |
| PSAPM | Public Storage, Inc. Preferred M |
| PSC | Philadelphia Suburban Corporation |
| PSD | Puget Sound Energy, Inc. |
| PSG | P S Group Holdings, Inc. |
| PSJ | PetSec Energy, LTD. |
| PSRPC | PSCO Capital Trust I |